--- /dev/null
- # Update the $suffix_rule map.
+#!@PERL@ -w
+# -*- perl -*-
+# @configure_input@
+
+eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
+ if 0;
+
+# automake - create Makefile.in from Makefile.am
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
+# Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
+# Alexandre Duret-Lutz <adl@gnu.org>.
+
+package Automake;
+
+use strict;
+
+BEGIN
+{
+ @Automake::perl_libdirs = ('@datadir@/@PACKAGE@-@APIVERSION@')
+ unless @Automake::perl_libdirs;
+ unshift @INC, @Automake::perl_libdirs;
+
+ # Override SHELL. This is required on DJGPP so that system() uses
+ # bash, not COMMAND.COM which doesn't quote arguments properly.
+ # Other systems aren't expected to use $SHELL when Automake
+ # runs, but it should be safe to drop the "if DJGPP" guard if
+ # it turns up other systems need the same thing. After all,
+ # if SHELL is used, ./configure's SHELL is always better than
+ # the user's SHELL (which may be something like tcsh).
+ $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
+}
+
+use Automake::Config;
+BEGIN
+{
+ if ($perl_threads)
+ {
+ require threads;
+ import threads;
+ require Thread::Queue;
+ import Thread::Queue;
+ }
+}
+use Automake::General;
+use Automake::XFile;
+use Automake::Channels;
+use Automake::ChannelDefs;
+use Automake::Configure_ac;
+use Automake::FileUtils;
+use Automake::Location;
+use Automake::Condition qw/TRUE FALSE/;
+use Automake::DisjConditions;
+use Automake::Options;
+use Automake::Variable;
+use Automake::VarDef;
+use Automake::Rule;
+use Automake::RuleDef;
+use Automake::Wrap 'makefile_wrap';
+use Automake::Language;
+use File::Basename;
+use File::Spec;
+use Carp;
+
+## ----------------------- ##
+## Subroutine prototypes. ##
+## ----------------------- ##
+
+#! Prototypes here will automatically be generated by the build system.
+
+
+## ----------- ##
+## Constants. ##
+## ----------- ##
+
+# Some regular expressions. One reason to put them here is that it
+# makes indentation work better in Emacs.
+
+# Writing singled-quoted-$-terminated regexes is a pain because
+# perl-mode thinks of $' as the ${'} variable (instead of a $ followed
+# by a closing quote. Letting perl-mode think the quote is not closed
+# leads to all sort of misindentations. On the other hand, defining
+# regexes as double-quoted strings is far less readable. So usually
+# we will write:
+#
+# $REGEX = '^regex_value' . "\$";
+
+my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
+my $WHITE_PATTERN = '^\s*' . "\$";
+my $COMMENT_PATTERN = '^#';
+my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
+# A rule has three parts: a list of targets, a list of dependencies,
+# and optionally actions.
+my $RULE_PATTERN =
+ "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
+
+# Only recognize leading spaces, not leading tabs. If we recognize
+# leading tabs here then we need to make the reader smarter, because
+# otherwise it will think rules like 'foo=bar; \' are errors.
+my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
+# This pattern recognizes a Gnits version id and sets $1 if the
+# release is an alpha release. We also allow a suffix which can be
+# used to extend the version number with a "fork" identifier.
+my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
+
+my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
+my $ELSE_PATTERN =
+ '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
+my $ENDIF_PATTERN =
+ '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
+my $PATH_PATTERN = '(\w|[+/.-])+';
+# This will pass through anything not of the prescribed form.
+my $INCLUDE_PATTERN = ('^include\s+'
+ . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
+ . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
+ . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
+
+# Directories installed during 'install-exec' phase.
+my $EXEC_DIR_PATTERN =
+ '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
+
+# Values for AC_CANONICAL_*
+use constant AC_CANONICAL_BUILD => 1;
+use constant AC_CANONICAL_HOST => 2;
+use constant AC_CANONICAL_TARGET => 3;
+
+# Values indicating when something should be cleaned.
+use constant MOSTLY_CLEAN => 0;
+use constant CLEAN => 1;
+use constant DIST_CLEAN => 2;
+use constant MAINTAINER_CLEAN => 3;
+
+# Libtool files.
+my @libtool_files = qw(ltmain.sh config.guess config.sub);
+# ltconfig appears here for compatibility with old versions of libtool.
+my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
+
+# Commonly found files we look for and automatically include in
+# DISTFILES.
+my @common_files =
+ (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
+ COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
+ ar-lib compile config.guess config.rpath
+ config.sub depcomp install-sh libversion.in mdate-sh
+ missing mkinstalldirs py-compile texinfo.tex ylwrap),
+ @libtool_files, @libtool_sometimes);
+
+# Commonly used files we auto-include, but only sometimes. This list
+# is used for the --help output only.
+my @common_sometimes =
+ qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
+ configure.ac configure.in stamp-vti);
+
+# Standard directories from the GNU Coding Standards, and additional
+# pkg* directories from Automake. Stored in a hash for fast member check.
+my %standard_prefix =
+ map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
+ lib libexec lisp locale localstate man man1 man2
+ man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
+ pkgdata pkginclude pkglib pkglibexec ps sbin
+ sharedstate sysconf));
+
+# Copyright on generated Makefile.ins.
+my $gen_copyright = "\
+# Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+";
+
+# These constants are returned by the lang_*_rewrite functions.
+# LANG_SUBDIR means that the resulting object file should be in a
+# subdir if the source file is. In this case the file name cannot
+# have '..' components.
+use constant LANG_IGNORE => 0;
+use constant LANG_PROCESS => 1;
+use constant LANG_SUBDIR => 2;
+
+# These are used when keeping track of whether an object can be built
+# by two different paths.
+use constant COMPILE_LIBTOOL => 1;
+use constant COMPILE_ORDINARY => 2;
+
+# We can't always associate a location to a variable or a rule,
+# when it's defined by Automake. We use INTERNAL in this case.
+use constant INTERNAL => new Automake::Location;
+
+# Serialization keys for message queues.
+use constant QUEUE_MESSAGE => "msg";
+use constant QUEUE_CONF_FILE => "conf file";
+use constant QUEUE_LOCATION => "location";
+use constant QUEUE_STRING => "string";
+
+## ---------------------------------- ##
+## Variables related to the options. ##
+## ---------------------------------- ##
+
+# TRUE if we should always generate Makefile.in.
+my $force_generation = 1;
+
+# From the Perl manual.
+my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
+
+# TRUE if missing standard files should be installed.
+my $add_missing = 0;
+
+# TRUE if we should copy missing files; otherwise symlink if possible.
+my $copy_missing = 0;
+
+# TRUE if we should always update files that we know about.
+my $force_missing = 0;
+
+
+## ---------------------------------------- ##
+## Variables filled during files scanning. ##
+## ---------------------------------------- ##
+
+# Name of the configure.ac file.
+my $configure_ac;
+
+# Files found by scanning configure.ac for LIBOBJS.
+my %libsources = ();
+
+# Names used in AC_CONFIG_HEADERS call.
+my @config_headers = ();
+
+# Names used in AC_CONFIG_LINKS call.
+my @config_links = ();
+
+# List of Makefile.am's to process, and their corresponding outputs.
+my @input_files = ();
+my %output_files = ();
+
+# Complete list of Makefile.am's that exist.
+my @configure_input_files = ();
+
+# List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
+# and their outputs.
+my @other_input_files = ();
+# Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADERS
+# appears. The keys are the files created by these macros.
+my %ac_config_files_location = ();
+# The condition under which AC_CONFIG_FOOS appears.
+my %ac_config_files_condition = ();
+
+# Directory to search for configure-required files. This
+# will be computed by locate_aux_dir() and can be set using
+# AC_CONFIG_AUX_DIR in configure.ac.
+# $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
+my $config_aux_dir = '';
+my $config_aux_dir_set_in_configure_ac = 0;
+# $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
+# in Makefiles.
+my $am_config_aux_dir = '';
+
+# Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
+# in configure.ac.
+my $config_libobj_dir = '';
+
+# Whether AM_GNU_GETTEXT has been seen in configure.ac.
+my $seen_gettext = 0;
+# Whether AM_GNU_GETTEXT([external]) is used.
+my $seen_gettext_external = 0;
+# Where AM_GNU_GETTEXT appears.
+my $ac_gettext_location;
+# Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
+my $seen_gettext_intl = 0;
+
+# The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
+my @extra_recursive_targets = ();
+
+# Lists of tags supported by Libtool.
+my %libtool_tags = ();
+# 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
+# uses AC_REQUIRE_AUX_FILE.
+my $libtool_new_api = 0;
+
+# Most important AC_CANONICAL_* macro seen so far.
+my $seen_canonical = 0;
+
+# Where AM_MAINTAINER_MODE appears.
+my $seen_maint_mode;
+
+# Actual version we've seen.
+my $package_version = '';
+
+# Where version is defined.
+my $package_version_location;
+
+# TRUE if we've seen AM_PROG_AR
+my $seen_ar = 0;
+
+# Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
+my %required_aux_file = ();
+
+# Where AM_INIT_AUTOMAKE is called;
+my $seen_init_automake = 0;
+
+# TRUE if we've seen AM_AUTOMAKE_VERSION.
+my $seen_automake_version = 0;
+
+# Hash table of discovered configure substitutions. Keys are names,
+# values are 'FILE:LINE' strings which are used by error message
+# generation.
+my %configure_vars = ();
+
+# Ignored configure substitutions (i.e., variables not to be output in
+# Makefile.in)
+my %ignored_configure_vars = ();
+
+# Files included by $configure_ac.
+my @configure_deps = ();
+
+# Greatest timestamp of configure's dependencies.
+my $configure_deps_greatest_timestamp = 0;
+
+# Hash table of AM_CONDITIONAL variables seen in configure.
+my %configure_cond = ();
+
+# This maps extensions onto language names.
+my %extension_map = ();
+
+# List of the DIST_COMMON files we discovered while reading
+# configure.ac.
+my $configure_dist_common = '';
+
+# This maps languages names onto objects.
+my %languages = ();
+# Maps each linker variable onto a language object.
+my %link_languages = ();
+
+# maps extensions to needed source flags.
+my %sourceflags = ();
+
+# List of targets we must always output.
+# FIXME: Complete, and remove falsely required targets.
+my %required_targets =
+ (
+ 'all' => 1,
+ 'dvi' => 1,
+ 'pdf' => 1,
+ 'ps' => 1,
+ 'info' => 1,
+ 'install-info' => 1,
+ 'install' => 1,
+ 'install-data' => 1,
+ 'install-exec' => 1,
+ 'uninstall' => 1,
+
+ # FIXME: Not required, temporary hacks.
+ # Well, actually they are sort of required: the -recursive
+ # targets will run them anyway...
+ 'html-am' => 1,
+ 'dvi-am' => 1,
+ 'pdf-am' => 1,
+ 'ps-am' => 1,
+ 'info-am' => 1,
+ 'install-data-am' => 1,
+ 'install-exec-am' => 1,
+ 'install-html-am' => 1,
+ 'install-dvi-am' => 1,
+ 'install-pdf-am' => 1,
+ 'install-ps-am' => 1,
+ 'install-info-am' => 1,
+ 'installcheck-am' => 1,
+ 'uninstall-am' => 1,
+ 'tags-am' => 1,
+ 'ctags-am' => 1,
+ 'cscopelist-am' => 1,
+ 'install-man' => 1,
+ );
+
+# Queue to push require_conf_file requirements to.
+my $required_conf_file_queue;
+
+# The name of the Makefile currently being processed.
+my $am_file = 'BUG';
+
+################################################################
+
+## ------------------------------------------ ##
+## Variables reset by &initialize_per_input. ##
+## ------------------------------------------ ##
+
+# Relative dir of the output makefile.
+my $relative_dir;
+
+# Greatest timestamp of the output's dependencies (excluding
+# configure's dependencies).
+my $output_deps_greatest_timestamp;
+
+# These variables are used when generating each Makefile.in.
+# They hold the Makefile.in until it is ready to be printed.
+my $output_vars;
+my $output_all;
+my $output_header;
+my $output_rules;
+my $output_trailer;
+
+# This is the conditional stack, updated on if/else/endif, and
+# used to build Condition objects.
+my @cond_stack;
+
+# This holds the set of included files.
+my @include_stack;
+
+# List of dependencies for the obvious targets.
+my @all;
+my @check;
+my @check_tests;
+
+# Keys in this hash table are files to delete. The associated
+# value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
+my %clean_files;
+
+# Keys in this hash table are object files or other files in
+# subdirectories which need to be removed. This only holds files
+# which are created by compilations. The value in the hash indicates
+# when the file should be removed.
+my %compile_clean_files;
+
+# Keys in this hash table are directories where we expect to build a
+# libtool object. We use this information to decide what directories
+# to delete.
+my %libtool_clean_directories;
+
+# Value of $(SOURCES), used by tags.am.
+my @sources;
+# Sources which go in the distribution.
+my @dist_sources;
+
+# This hash maps object file names onto their corresponding source
+# file names. This is used to ensure that each object is created
+# by a single source file.
+my %object_map;
+
+# This hash maps object file names onto an integer value representing
+# whether this object has been built via ordinary compilation or
+# libtool compilation (the COMPILE_* constants).
+my %object_compilation_map;
+
+
+# This keeps track of the directories for which we've already
+# created dirstamp code. Keys are directories, values are stamp files.
+# Several keys can share the same stamp files if they are equivalent
+# (as are './/foo' and 'foo').
+my %directory_map;
+
+# All .P files.
+my %dep_files;
+
+# This is a list of all targets to run during "make dist".
+my @dist_targets;
+
+# Keep track of all programs declared in this Makefile, without
+# $(EXEEXT). @substitutions@ are not listed.
+my %known_programs;
+my %known_libraries;
+
+# This keeps track of which extensions we've seen (that we care
+# about).
+my %extension_seen;
+
+# This is random scratch space for the language finish functions.
+# Don't randomly overwrite it; examine other uses of keys first.
+my %language_scratch;
+
+# We keep track of which objects need special (per-executable)
+# handling on a per-language basis.
+my %lang_specific_files;
+
+# This is set when 'handle_dist' has finished. Once this happens,
+# we should no longer push on dist_common.
+my $handle_dist_run;
+
+# Used to store a set of linkers needed to generate the sources currently
+# under consideration.
+my %linkers_used;
+
+# True if we need 'LINK' defined. This is a hack.
+my $need_link;
+
+# Does the generated Makefile have to build some compiled object
+# (for binary programs, or plain or libtool libraries)?
+my $must_handle_compiled_objects;
+
+# Record each file processed by make_paragraphs.
+my %transformed_files;
+
+################################################################
+
+## ---------------------------------------------- ##
+## Variables not reset by &initialize_per_input. ##
+## ---------------------------------------------- ##
+
+# Cache each file processed by make_paragraphs.
+# (This is different from %transformed_files because
+# %transformed_files is reset for each file while %am_file_cache
+# it global to the run.)
+my %am_file_cache;
+
+################################################################
+
+# var_SUFFIXES_trigger ($TYPE, $VALUE)
+# ------------------------------------
+# This is called by Automake::Variable::define() when SUFFIXES
+# is defined ($TYPE eq '') or appended ($TYPE eq '+').
+# The work here needs to be performed as a side-effect of the
+# macro_define() call because SUFFIXES definitions impact
+# on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
+# the input am file.
+sub var_SUFFIXES_trigger
+{
+ my ($type, $value) = @_;
+ accept_extensions (split (' ', $value));
+}
+Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
+
+################################################################
+
+
+# initialize_per_input ()
+# -----------------------
+# (Re)-Initialize per-Makefile.am variables.
+sub initialize_per_input ()
+{
+ reset_local_duplicates ();
+
+ $relative_dir = undef;
+
+ $output_deps_greatest_timestamp = 0;
+
+ $output_vars = '';
+ $output_all = '';
+ $output_header = '';
+ $output_rules = '';
+ $output_trailer = '';
+
+ Automake::Options::reset;
+ Automake::Variable::reset;
+ Automake::Rule::reset;
+
+ @cond_stack = ();
+
+ @include_stack = ();
+
+ @all = ();
+ @check = ();
+ @check_tests = ();
+
+ %clean_files = ();
+ %compile_clean_files = ();
+
+ # We always include '.'. This isn't strictly correct.
+ %libtool_clean_directories = ('.' => 1);
+
+ @sources = ();
+ @dist_sources = ();
+
+ %object_map = ();
+ %object_compilation_map = ();
+
+ %directory_map = ();
+
+ %dep_files = ();
+
+ @dist_targets = ();
+
+ %known_programs = ();
+ %known_libraries= ();
+
+ %extension_seen = ();
+
+ %language_scratch = ();
+
+ %lang_specific_files = ();
+
+ $handle_dist_run = 0;
+
+ $need_link = 0;
+
+ $must_handle_compiled_objects = 0;
+
+ %transformed_files = ();
+}
+
+
+################################################################
+
+# Initialize our list of languages that are internally supported.
+
+my @cpplike_flags =
+ qw{
+ $(DEFS)
+ $(DEFAULT_INCLUDES)
+ $(INCLUDES)
+ $(AM_CPPFLAGS)
+ $(CPPFLAGS)
+ };
+
+# C.
+register_language ('name' => 'c',
+ 'Name' => 'C',
+ 'config_vars' => ['CC'],
+ 'autodep' => '',
+ 'flags' => ['CFLAGS', 'CPPFLAGS'],
+ 'ccer' => 'CC',
+ 'compiler' => 'COMPILE',
+ 'compile' => "\$(CC) @cpplike_flags \$(AM_CFLAGS) \$(CFLAGS)",
+ 'lder' => 'CCLD',
+ 'ld' => '$(CC)',
+ 'linker' => 'LINK',
+ 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'compile_flag' => '-c',
+ 'libtool_tag' => 'CC',
+ 'extensions' => ['.c']);
+
+# C++.
+register_language ('name' => 'cxx',
+ 'Name' => 'C++',
+ 'config_vars' => ['CXX'],
+ 'linker' => 'CXXLINK',
+ 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'autodep' => 'CXX',
+ 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
+ 'compile' => "\$(CXX) @cpplike_flags \$(AM_CXXFLAGS) \$(CXXFLAGS)",
+ 'ccer' => 'CXX',
+ 'compiler' => 'CXXCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'libtool_tag' => 'CXX',
+ 'lder' => 'CXXLD',
+ 'ld' => '$(CXX)',
+ 'pure' => 1,
+ 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
+
+# Objective C.
+register_language ('name' => 'objc',
+ 'Name' => 'Objective C',
+ 'config_vars' => ['OBJC'],
+ 'linker' => 'OBJCLINK',
+ 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'autodep' => 'OBJC',
+ 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
+ 'compile' => "\$(OBJC) @cpplike_flags \$(AM_OBJCFLAGS) \$(OBJCFLAGS)",
+ 'ccer' => 'OBJC',
+ 'compiler' => 'OBJCCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'lder' => 'OBJCLD',
+ 'ld' => '$(OBJC)',
+ 'pure' => 1,
+ 'extensions' => ['.m']);
+
+# Objective C++.
+register_language ('name' => 'objcxx',
+ 'Name' => 'Objective C++',
+ 'config_vars' => ['OBJCXX'],
+ 'linker' => 'OBJCXXLINK',
+ 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'autodep' => 'OBJCXX',
+ 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
+ 'compile' => "\$(OBJCXX) @cpplike_flags \$(AM_OBJCXXFLAGS) \$(OBJCXXFLAGS)",
+ 'ccer' => 'OBJCXX',
+ 'compiler' => 'OBJCXXCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'lder' => 'OBJCXXLD',
+ 'ld' => '$(OBJCXX)',
+ 'pure' => 1,
+ 'extensions' => ['.mm']);
+
+# Unified Parallel C.
+register_language ('name' => 'upc',
+ 'Name' => 'Unified Parallel C',
+ 'config_vars' => ['UPC'],
+ 'linker' => 'UPCLINK',
+ 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'autodep' => 'UPC',
+ 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
+ 'compile' => "\$(UPC) @cpplike_flags \$(AM_UPCFLAGS) \$(UPCFLAGS)",
+ 'ccer' => 'UPC',
+ 'compiler' => 'UPCCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'lder' => 'UPCLD',
+ 'ld' => '$(UPC)',
+ 'pure' => 1,
+ 'extensions' => ['.upc']);
+
+# Headers.
+register_language ('name' => 'header',
+ 'Name' => 'Header',
+ 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
+ '.hpp', '.inc'],
+ # No output.
+ 'output_extensions' => sub { return () },
+ # Nothing to do.
+ '_finish' => sub { });
+
+# Vala
+register_language ('name' => 'vala',
+ 'Name' => 'Vala',
+ 'config_vars' => ['VALAC'],
+ 'flags' => [],
+ 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
+ 'ccer' => 'VALAC',
+ 'compiler' => 'VALACOMPILE',
+ 'extensions' => ['.vala'],
+ 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
+ return ($ext,) },
+ 'rule_file' => 'vala',
+ '_finish' => \&lang_vala_finish,
+ '_target_hook' => \&lang_vala_target_hook,
+ 'nodist_specific' => 1);
+
+# Yacc (C & C++).
+register_language ('name' => 'yacc',
+ 'Name' => 'Yacc',
+ 'config_vars' => ['YACC'],
+ 'flags' => ['YFLAGS'],
+ 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
+ 'ccer' => 'YACC',
+ 'compiler' => 'YACCCOMPILE',
+ 'extensions' => ['.y'],
+ 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
+ return ($ext,) },
+ 'rule_file' => 'yacc',
+ '_finish' => \&lang_yacc_finish,
+ '_target_hook' => \&lang_yacc_target_hook,
+ 'nodist_specific' => 1);
+register_language ('name' => 'yaccxx',
+ 'Name' => 'Yacc (C++)',
+ 'config_vars' => ['YACC'],
+ 'rule_file' => 'yacc',
+ 'flags' => ['YFLAGS'],
+ 'ccer' => 'YACC',
+ 'compiler' => 'YACCCOMPILE',
+ 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
+ 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
+ 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
+ return ($ext,) },
+ '_finish' => \&lang_yacc_finish,
+ '_target_hook' => \&lang_yacc_target_hook,
+ 'nodist_specific' => 1);
+
+# Lex (C & C++).
+register_language ('name' => 'lex',
+ 'Name' => 'Lex',
+ 'config_vars' => ['LEX'],
+ 'rule_file' => 'lex',
+ 'flags' => ['LFLAGS'],
+ 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
+ 'ccer' => 'LEX',
+ 'compiler' => 'LEXCOMPILE',
+ 'extensions' => ['.l'],
+ 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
+ return ($ext,) },
+ '_finish' => \&lang_lex_finish,
+ '_target_hook' => \&lang_lex_target_hook,
+ 'nodist_specific' => 1);
+register_language ('name' => 'lexxx',
+ 'Name' => 'Lex (C++)',
+ 'config_vars' => ['LEX'],
+ 'rule_file' => 'lex',
+ 'flags' => ['LFLAGS'],
+ 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
+ 'ccer' => 'LEX',
+ 'compiler' => 'LEXCOMPILE',
+ 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
+ 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
+ return ($ext,) },
+ '_finish' => \&lang_lex_finish,
+ '_target_hook' => \&lang_lex_target_hook,
+ 'nodist_specific' => 1);
+
+# Assembler.
+register_language ('name' => 'asm',
+ 'Name' => 'Assembler',
+ 'config_vars' => ['CCAS', 'CCASFLAGS'],
+
+ 'flags' => ['CCASFLAGS'],
+ # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
+ # or anything else required. They can also set CCAS.
+ # Or simply use Preprocessed Assembler.
+ 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
+ 'ccer' => 'CCAS',
+ 'compiler' => 'CCASCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'extensions' => ['.s']);
+
+# Preprocessed Assembler.
+register_language ('name' => 'cppasm',
+ 'Name' => 'Preprocessed Assembler',
+ 'config_vars' => ['CCAS', 'CCASFLAGS'],
+
+ 'autodep' => 'CCAS',
+ 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
+ 'compile' => "\$(CCAS) @cpplike_flags \$(AM_CCASFLAGS) \$(CCASFLAGS)",
+ 'ccer' => 'CPPAS',
+ 'compiler' => 'CPPASCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'extensions' => ['.S', '.sx']);
+
+# Fortran 77
+register_language ('name' => 'f77',
+ 'Name' => 'Fortran 77',
+ 'config_vars' => ['F77'],
+ 'linker' => 'F77LINK',
+ 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'flags' => ['FFLAGS'],
+ 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
+ 'ccer' => 'F77',
+ 'compiler' => 'F77COMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'libtool_tag' => 'F77',
+ 'lder' => 'F77LD',
+ 'ld' => '$(F77)',
+ 'pure' => 1,
+ 'extensions' => ['.f', '.for']);
+
+# Fortran
+register_language ('name' => 'fc',
+ 'Name' => 'Fortran',
+ 'config_vars' => ['FC'],
+ 'linker' => 'FCLINK',
+ 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'flags' => ['FCFLAGS'],
+ 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
+ 'ccer' => 'FC',
+ 'compiler' => 'FCCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'libtool_tag' => 'FC',
+ 'lder' => 'FCLD',
+ 'ld' => '$(FC)',
+ 'pure' => 1,
+ 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
+
+# Preprocessed Fortran
+register_language ('name' => 'ppfc',
+ 'Name' => 'Preprocessed Fortran',
+ 'config_vars' => ['FC'],
+ 'linker' => 'FCLINK',
+ 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'lder' => 'FCLD',
+ 'ld' => '$(FC)',
+ 'flags' => ['FCFLAGS', 'CPPFLAGS'],
+ 'ccer' => 'PPFC',
+ 'compiler' => 'PPFCCOMPILE',
+ 'compile' => "\$(FC) @cpplike_flags \$(AM_FCFLAGS) \$(FCFLAGS)",
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'libtool_tag' => 'FC',
+ 'pure' => 1,
+ 'extensions' => ['.F90','.F95', '.F03', '.F08']);
+
+# Preprocessed Fortran 77
+#
+# The current support for preprocessing Fortran 77 just involves
+# passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
+# $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
+# this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
+# for 'make' Version 3.76 Beta" (specifically, from info file
+# '(make)Catalogue of Rules').
+#
+# A better approach would be to write an Autoconf test
+# (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
+# Fortran 77 compilers know how to do preprocessing. The Autoconf
+# macro AC_PROG_FPP should test the Fortran 77 compiler first for
+# preprocessing capabilities, and then fall back on cpp (if cpp were
+# available).
+register_language ('name' => 'ppf77',
+ 'Name' => 'Preprocessed Fortran 77',
+ 'config_vars' => ['F77'],
+ 'linker' => 'F77LINK',
+ 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'lder' => 'F77LD',
+ 'ld' => '$(F77)',
+ 'flags' => ['FFLAGS', 'CPPFLAGS'],
+ 'ccer' => 'PPF77',
+ 'compiler' => 'PPF77COMPILE',
+ 'compile' => "\$(F77) @cpplike_flags \$(AM_FFLAGS) \$(FFLAGS)",
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'libtool_tag' => 'F77',
+ 'pure' => 1,
+ 'extensions' => ['.F']);
+
+# Ratfor.
+register_language ('name' => 'ratfor',
+ 'Name' => 'Ratfor',
+ 'config_vars' => ['F77'],
+ 'linker' => 'F77LINK',
+ 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'lder' => 'F77LD',
+ 'ld' => '$(F77)',
+ 'flags' => ['RFLAGS', 'FFLAGS'],
+ # FIXME also FFLAGS.
+ 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
+ 'ccer' => 'F77',
+ 'compiler' => 'RCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'libtool_tag' => 'F77',
+ 'pure' => 1,
+ 'extensions' => ['.r']);
+
+# Java via gcj.
+register_language ('name' => 'java',
+ 'Name' => 'Java',
+ 'config_vars' => ['GCJ'],
+ 'linker' => 'GCJLINK',
+ 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
+ 'autodep' => 'GCJ',
+ 'flags' => ['GCJFLAGS'],
+ 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
+ 'ccer' => 'GCJ',
+ 'compiler' => 'GCJCOMPILE',
+ 'compile_flag' => '-c',
+ 'output_flag' => '-o',
+ 'libtool_tag' => 'GCJ',
+ 'lder' => 'GCJLD',
+ 'ld' => '$(GCJ)',
+ 'pure' => 1,
+ 'extensions' => ['.java', '.class', '.zip', '.jar']);
+
+################################################################
+
+# Error reporting functions.
+
+# err_am ($MESSAGE, [%OPTIONS])
+# -----------------------------
+# Uncategorized errors about the current Makefile.am.
+sub err_am
+{
+ msg_am ('error', @_);
+}
+
+# err_ac ($MESSAGE, [%OPTIONS])
+# -----------------------------
+# Uncategorized errors about configure.ac.
+sub err_ac
+{
+ msg_ac ('error', @_);
+}
+
+# msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
+# ---------------------------------------
+# Messages about about the current Makefile.am.
+sub msg_am
+{
+ my ($channel, $msg, %opts) = @_;
+ msg $channel, "${am_file}.am", $msg, %opts;
+}
+
+# msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
+# ---------------------------------------
+# Messages about about configure.ac.
+sub msg_ac
+{
+ my ($channel, $msg, %opts) = @_;
+ msg $channel, $configure_ac, $msg, %opts;
+}
+
+################################################################
+
+# subst ($TEXT)
+# -------------
+# Return a configure-style substitution using the indicated text.
+# We do this to avoid having the substitutions directly in automake.in;
+# when we do that they are sometimes removed and this causes confusion
+# and bugs.
+sub subst
+{
+ my ($text) = @_;
+ return '@' . $text . '@';
+}
+
+################################################################
+
+
+# $BACKPATH
+# backname ($RELDIR)
+# -------------------
+# If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
+# For instance 'src/foo' => '../..'.
+# Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
+sub backname
+{
+ my ($file) = @_;
+ my @res;
+ foreach (split (/\//, $file))
+ {
+ next if $_ eq '.' || $_ eq '';
+ if ($_ eq '..')
+ {
+ pop @res
+ or prog_error ("trying to reverse path '$file' pointing outside tree");
+ }
+ else
+ {
+ push (@res, '..');
+ }
+ }
+ return join ('/', @res) || '.';
+}
+
+################################################################
+
+# Silent rules handling functions.
+
+# verbose_var (NAME)
+# ------------------
+# The public variable stem used to implement silent rules.
+sub verbose_var
+{
+ my ($name) = @_;
+ return 'AM_V_' . $name;
+}
+
+# verbose_private_var (NAME)
+# --------------------------
+# The naming policy for the private variables for silent rules.
+sub verbose_private_var
+{
+ my ($name) = @_;
+ return 'am__v_' . $name;
+}
+
+# define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
+# ----------------------------------------------------------
+# For silent rules, setup VAR and dispatcher, to expand to
+# VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
+# empty) if not.
+sub define_verbose_var
+{
+ my ($name, $silent_val, $verbose_val) = @_;
+ $verbose_val = '' unless defined $verbose_val;
+ my $var = verbose_var ($name);
+ my $pvar = verbose_private_var ($name);
+ my $silent_var = $pvar . '_0';
+ my $verbose_var = $pvar . '_1';
+ # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
+ # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
+ # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
+ # See AM_SILENT_RULES in m4/silent.m4.
+ define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
+ define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
+ INTERNAL);
+ Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
+ $silent_val, '', INTERNAL, VAR_ASIS)
+ if (! vardef ($silent_var, TRUE));
+ Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
+ $verbose_val, '', INTERNAL, VAR_ASIS)
+ if (! vardef ($verbose_var, TRUE));
+}
+
+# verbose_flag (NAME)
+# -------------------
+# Contents of '%VERBOSE%' variable to expand before rule command.
+sub verbose_flag
+{
+ my ($name) = @_;
+ return '$(' . verbose_var ($name) . ')';
+}
+
+sub verbose_nodep_flag
+{
+ my ($name) = @_;
+ return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
+}
+
+# silent_flag
+# -----------
+# Contents of %SILENT%: variable to expand to '@' when silent.
+sub silent_flag ()
+{
+ return verbose_flag ('at');
+}
+
+# define_verbose_tagvar (NAME)
+# ----------------------------
+# Engage the needed silent rules machinery for tag NAME.
+sub define_verbose_tagvar
+{
+ my ($name) = @_;
+ define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
+}
+
+# Engage the needed silent rules machinery for assorted texinfo commands.
+sub define_verbose_texinfo ()
+{
+ my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
+ foreach my $tag (@tagvars)
+ {
+ define_verbose_tagvar($tag);
+ }
+ define_verbose_var('texinfo', '-q');
+ define_verbose_var('texidevnull', '> /dev/null');
+}
+
+# Engage the needed silent rules machinery for 'libtool --silent'.
+sub define_verbose_libtool ()
+{
+ define_verbose_var ('lt', '--silent');
+ return verbose_flag ('lt');
+}
+
+sub handle_silent ()
+{
+ # Define "$(AM_V_P)", expanding to a shell conditional that can be
+ # used in make recipes to determine whether we are being run in
+ # silent mode or not. The choice of the name derives from the LISP
+ # convention of appending the letter 'P' to denote a predicate (see
+ # also "the '-P' convention" in the Jargon File); we do so for lack
+ # of a better convention.
+ define_verbose_var ('P', 'false', ':');
+ # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
+ define_verbose_tagvar ('GEN');
+ define_verbose_var ('at', '@');
+}
+
+
+################################################################
+
+
+# Handle AUTOMAKE_OPTIONS variable. Return 0 on error, 1 otherwise.
+sub handle_options ()
+{
+ my $var = var ('AUTOMAKE_OPTIONS');
+ if ($var)
+ {
+ if ($var->has_conditional_contents)
+ {
+ msg_var ('unsupported', $var,
+ "'AUTOMAKE_OPTIONS' cannot have conditional contents");
+ }
+ my @options = map { { option => $_->[1], where => $_->[0] } }
+ $var->value_as_list_recursive (cond_filter => TRUE,
+ location => 1);
+ return 0 unless process_option_list (@options);
+ }
+
+ if ($strictness == GNITS)
+ {
+ set_option ('readme-alpha', INTERNAL);
+ set_option ('std-options', INTERNAL);
+ set_option ('check-news', INTERNAL);
+ }
+
+ return 1;
+}
+
+# shadow_unconditionally ($varname, $where)
+# -----------------------------------------
+# Return a $(variable) that contains all possible values
+# $varname can take.
+# If the VAR wasn't defined conditionally, return $(VAR).
+# Otherwise we create an am__VAR_DIST variable which contains
+# all possible values, and return $(am__VAR_DIST).
+sub shadow_unconditionally
+{
+ my ($varname, $where) = @_;
+ my $var = var $varname;
+ if ($var->has_conditional_contents)
+ {
+ $varname = "am__${varname}_DIST";
+ my @files = uniq ($var->value_as_list_recursive);
+ define_pretty_variable ($varname, TRUE, $where, @files);
+ }
+ return "\$($varname)"
+}
+
+# check_user_variables (@LIST)
+# ----------------------------
+# Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
+# otherwise.
+sub check_user_variables
+{
+ my @dont_override = @_;
+ foreach my $flag (@dont_override)
+ {
+ my $var = var $flag;
+ if ($var)
+ {
+ for my $cond ($var->conditions->conds)
+ {
+ if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
+ {
+ msg_cond_var ('gnu', $cond, $flag,
+ "'$flag' is a user variable, "
+ . "you should not override it;\n"
+ . "use 'AM_$flag' instead");
+ }
+ }
+ }
+ }
+}
+
+# Call finish function for each language that was used.
+sub handle_languages ()
+{
+ if (! option 'no-dependencies')
+ {
+ # Include auto-dep code. Don't include it if DEP_FILES would
+ # be empty.
+ if (keys %extension_seen && keys %dep_files)
+ {
+ # Set location of depcomp.
+ define_variable ('depcomp',
+ "\$(SHELL) $am_config_aux_dir/depcomp",
+ INTERNAL);
+ define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
+
+ require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
+
+ my @deplist = sort keys %dep_files;
+ # Generate each 'include' individually. Irix 6 make will
+ # not properly include several files resulting from a
+ # variable expansion; generating many separate includes
+ # seems safest.
+ $output_rules .= "\n";
+ foreach my $iter (@deplist)
+ {
+ $output_rules .= (subst ('AMDEP_TRUE')
+ . subst ('am__include')
+ . ' '
+ . subst ('am__quote')
+ . $iter
+ . subst ('am__quote')
+ . "\n");
+ }
+
+ # Compute the set of directories to remove in distclean-depend.
+ my @depdirs = uniq (map { dirname ($_) } @deplist);
+ $output_rules .= file_contents ('depend',
+ new Automake::Location,
+ DEPDIRS => "@depdirs");
+ }
+ }
+ else
+ {
+ define_variable ('depcomp', '', INTERNAL);
+ define_variable ('am__depfiles_maybe', '', INTERNAL);
+ }
+
+ my %done;
+
+ # Is the C linker needed?
+ my $needs_c = 0;
+ foreach my $ext (sort keys %extension_seen)
+ {
+ next unless $extension_map{$ext};
+
+ my $lang = $languages{$extension_map{$ext}};
+
+ my $rule_file = $lang->rule_file || 'depend2';
+
+ # Get information on $LANG.
+ my $pfx = $lang->autodep;
+ my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
+
+ my ($AMDEP, $FASTDEP) =
+ (option 'no-dependencies' || $lang->autodep eq 'no')
+ ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
+
+ my $verbose = verbose_flag ($lang->ccer || 'GEN');
+ my $verbose_nodep = ($AMDEP eq 'FALSE')
+ ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
+ my $silent = silent_flag ();
+
+ my %transform = ('EXT' => $ext,
+ 'PFX' => $pfx,
+ 'FPFX' => $fpfx,
+ 'AMDEP' => $AMDEP,
+ 'FASTDEP' => $FASTDEP,
+ '-c' => $lang->compile_flag || '',
+ # These are not used, but they need to be defined
+ # so transform() do not complain.
+ SUBDIROBJ => 0,
+ 'DERIVED-EXT' => 'BUG',
+ DIST_SOURCE => 1,
+ VERBOSE => $verbose,
+ 'VERBOSE-NODEP' => $verbose_nodep,
+ SILENT => $silent,
+ );
+
+ # Generate the appropriate rules for this extension.
+ if (((! option 'no-dependencies') && $lang->autodep ne 'no')
+ || defined $lang->compile)
+ {
+ # Some C compilers don't support -c -o. Use it only if really
+ # needed.
+ my $output_flag = $lang->output_flag || '';
+ $output_flag = '-o'
+ if (! $output_flag
+ && $lang->name eq 'c'
+ && option 'subdir-objects');
+
+ # Compute a possible derived extension.
+ # This is not used by depend2.am.
+ my $der_ext = ($lang->output_extensions->($ext))[0];
+
+ # When we output an inference rule like '.c.o:' we
+ # have two cases to consider: either subdir-objects
+ # is used, or it is not.
+ #
+ # In the latter case the rule is used to build objects
+ # in the current directory, and dependencies always
+ # go into './$(DEPDIR)/'. We can hard-code this value.
+ #
+ # In the former case the rule can be used to build
+ # objects in sub-directories too. Dependencies should
+ # go into the appropriate sub-directories, e.g.,
+ # 'sub/$(DEPDIR)/'. The value of this directory
+ # needs to be computed on-the-fly.
+ #
+ # DEPBASE holds the name of this directory, plus the
+ # basename part of the object file (extensions Po, TPo,
+ # Plo, TPlo will be added later as appropriate). It is
+ # either hardcoded, or a shell variable ('$depbase') that
+ # will be computed by the rule.
+ my $depbase =
+ option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
+ $output_rules .=
+ file_contents ($rule_file,
+ new Automake::Location,
+ %transform,
+ GENERIC => 1,
+
+ 'DERIVED-EXT' => $der_ext,
+
+ DEPBASE => $depbase,
+ BASE => '$*',
+ SOURCE => '$<',
+ SOURCEFLAG => $sourceflags{$ext} || '',
+ OBJ => '$@',
+ OBJOBJ => '$@',
+ LTOBJ => '$@',
+
+ COMPILE => '$(' . $lang->compiler . ')',
+ LTCOMPILE => '$(LT' . $lang->compiler . ')',
+ -o => $output_flag,
+ SUBDIROBJ => !! option 'subdir-objects');
+ }
+
+ # Now include code for each specially handled object with this
+ # language.
+ my %seen_files = ();
+ foreach my $file (@{$lang_specific_files{$lang->name}})
+ {
+ my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
+
+ # We might see a given object twice, for instance if it is
+ # used under different conditions.
+ next if defined $seen_files{$obj};
+ $seen_files{$obj} = 1;
+
+ prog_error ("found " . $lang->name .
+ " in handle_languages, but compiler not defined")
+ unless defined $lang->compile;
+
+ my $obj_compile = $lang->compile;
+
+ # Rewrite each occurrence of 'AM_$flag' in the compile
+ # rule into '${derived}_$flag' if it exists.
+ for my $flag (@{$lang->flags})
+ {
+ my $val = "${derived}_$flag";
+ $obj_compile =~ s/\(AM_$flag\)/\($val\)/
+ if set_seen ($val);
+ }
+
+ my $libtool_tag = '';
+ if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
+ {
+ $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
+ }
+
+ my $ptltflags = "${derived}_LIBTOOLFLAGS";
+ $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
+
+ my $ltverbose = define_verbose_libtool ();
+ my $obj_ltcompile =
+ "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
+ . "--mode=compile $obj_compile";
+
+ # We _need_ '-o' for per object rules.
+ my $output_flag = $lang->output_flag || '-o';
+
+ my $depbase = dirname ($obj);
+ $depbase = ''
+ if $depbase eq '.';
+ $depbase .= '/'
+ unless $depbase eq '';
+ $depbase .= '$(DEPDIR)/' . basename ($obj);
+
+ $output_rules .=
+ file_contents ($rule_file,
+ new Automake::Location,
+ %transform,
+ GENERIC => 0,
+
+ DEPBASE => $depbase,
+ BASE => $obj,
+ SOURCE => $source,
+ SOURCEFLAG => $sourceflags{$srcext} || '',
+ # Use $myext and not '.o' here, in case
+ # we are actually building a new source
+ # file -- e.g. via yacc.
+ OBJ => "$obj$myext",
+ OBJOBJ => "$obj.obj",
+ LTOBJ => "$obj.lo",
+
+ VERBOSE => $verbose,
+ 'VERBOSE-NODEP' => $verbose_nodep,
+ SILENT => $silent,
+ COMPILE => $obj_compile,
+ LTCOMPILE => $obj_ltcompile,
+ -o => $output_flag,
+ %file_transform);
+ }
+
+ # The rest of the loop is done once per language.
+ next if defined $done{$lang};
+ $done{$lang} = 1;
+
+ # Load the language dependent Makefile chunks.
+ my %lang = map { uc ($_) => 0 } keys %languages;
+ $lang{uc ($lang->name)} = 1;
+ $output_rules .= file_contents ('lang-compile',
+ new Automake::Location,
+ %transform, %lang);
+
+ # If the source to a program consists entirely of code from a
+ # 'pure' language, for instance C++ or Fortran 77, then we
+ # don't need the C compiler code. However if we run into
+ # something unusual then we do generate the C code. There are
+ # probably corner cases here that do not work properly.
+ # People linking Java code to Fortran code deserve pain.
+ $needs_c ||= ! $lang->pure;
+
+ define_compiler_variable ($lang)
+ if ($lang->compile);
+
+ define_linker_variable ($lang)
+ if ($lang->link);
+
+ require_variables ("$am_file.am", $lang->Name . " source seen",
+ TRUE, @{$lang->config_vars});
+
+ # Call the finisher.
+ $lang->finish;
+
+ # Flags listed in '->flags' are user variables (per GNU Standards),
+ # they should not be overridden in the Makefile...
+ my @dont_override = @{$lang->flags};
+ # ... and so is LDFLAGS.
+ push @dont_override, 'LDFLAGS' if $lang->link;
+
+ check_user_variables @dont_override;
+ }
+
+ # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
+ # suffix rule was learned), don't bother with the C stuff. But if
+ # anything else creeps in, then use it.
+ $needs_c = 1
+ if $need_link || suffix_rules_count > 1;
+
+ if ($needs_c)
+ {
+ define_compiler_variable ($languages{'c'})
+ unless defined $done{$languages{'c'}};
+ define_linker_variable ($languages{'c'});
+ }
+}
+
+
+# append_exeext { PREDICATE } $MACRO
+# ----------------------------------
+# Append $(EXEEXT) to each filename in $F appearing in the Makefile
+# variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
+# ignored.
+#
+# This is typically used on all filenames of *_PROGRAMS, and filenames
+# of TESTS that are programs.
+sub append_exeext (&$)
+{
+ my ($pred, $macro) = @_;
+
+ transform_variable_recursively
+ ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
+ sub {
+ my ($subvar, $val, $cond, $full_cond) = @_;
+ # Append $(EXEEXT) unless the user did it already, or it's a
+ # @substitution@.
+ $val .= '$(EXEEXT)'
+ if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
+ return $val;
+ });
+}
+
+
+# Check to make sure a source defined in LIBOBJS is not explicitly
+# mentioned. This is a separate function (as opposed to being inlined
+# in handle_source_transform) because it isn't always appropriate to
+# do this check.
+sub check_libobjs_sources
+{
+ my ($one_file, $unxformed) = @_;
+
+ foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
+ 'dist_EXTRA_', 'nodist_EXTRA_')
+ {
+ my @files;
+ my $varname = $prefix . $one_file . '_SOURCES';
+ my $var = var ($varname);
+ if ($var)
+ {
+ @files = $var->value_as_list_recursive;
+ }
+ elsif ($prefix eq '')
+ {
+ @files = ($unxformed . '.c');
+ }
+ else
+ {
+ next;
+ }
+
+ foreach my $file (@files)
+ {
+ err_var ($prefix . $one_file . '_SOURCES',
+ "automatically discovered file '$file' should not" .
+ " be explicitly mentioned")
+ if defined $libsources{$file};
+ }
+ }
+}
+
+
+# @OBJECTS
+# handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
+# -----------------------------------------------------------------------------
+# Does much of the actual work for handle_source_transform.
+# Arguments are:
+# $VAR is the name of the variable that the source filenames come from
+# $TOPPARENT is the name of the _SOURCES variable which is being processed
+# $DERIVED is the name of resulting executable or library
+# $OBJ is the object extension (e.g., '.lo')
+# $FILE the source file to transform
+# %TRANSFORM contains extras arguments to pass to file_contents
+# when producing explicit rules
+# Result is a list of the names of objects
+# %linkers_used will be updated with any linkers needed
+sub handle_single_transform
+{
+ my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
+ my @files = ($_file);
+ my @result = ();
+
+ # Turn sources into objects. We use a while loop like this
+ # because we might add to @files in the loop.
+ while (scalar @files > 0)
+ {
+ $_ = shift @files;
+
+ # Configure substitutions in _SOURCES variables are errors.
+ if (/^\@.*\@$/)
+ {
+ my $parent_msg = '';
+ $parent_msg = "\nand is referred to from '$topparent'"
+ if $topparent ne $var->name;
+ err_var ($var,
+ "'" . $var->name . "' includes configure substitution '$_'"
+ . $parent_msg . ";\nconfigure " .
+ "substitutions are not allowed in _SOURCES variables");
+ next;
+ }
+
+ # If the source file is in a subdirectory then the '.o' is put
+ # into the current directory, unless the subdir-objects option
+ # is in effect.
+
+ # Split file name into base and extension.
+ next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
+ my $full = $_;
+ my $directory = $1 || '';
+ my $base = $2;
+ my $extension = $3;
+
+ # We must generate a rule for the object if it requires its own flags.
+ my $renamed = 0;
+ my ($linker, $object);
+
+ # This records whether we've seen a derived source file (e.g.
+ # yacc output).
+ my $derived_source = 0;
+
+ # This holds the 'aggregate context' of the file we are
+ # currently examining. If the file is compiled with
+ # per-object flags, then it will be the name of the object.
+ # Otherwise it will be 'AM'. This is used by the target hook
+ # language function.
+ my $aggregate = 'AM';
+
+ $extension = derive_suffix ($extension, $obj);
+ my $lang;
+ if ($extension_map{$extension} &&
+ ($lang = $languages{$extension_map{$extension}}))
+ {
+ # Found the language, so see what it says.
+ saw_extension ($extension);
+
+ # Do we have per-executable flags for this executable?
+ my $have_per_exec_flags = 0;
+ my @peflags = @{$lang->flags};
+ push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
+ foreach my $flag (@peflags)
+ {
+ if (set_seen ("${derived}_$flag"))
+ {
+ $have_per_exec_flags = 1;
+ last;
+ }
+ }
+
+ # Note: computed subr call. The language rewrite function
+ # should return one of the LANG_* constants. It could
+ # also return a list whose first value is such a constant
+ # and whose second value is a new source extension which
+ # should be applied. This means this particular language
+ # generates another source file which we must then process
+ # further.
+ my $subr = \&{'lang_' . $lang->name . '_rewrite'};
+ defined &$subr or $subr = \&lang_sub_obj;
+ my ($r, $source_extension)
+ = &$subr ($directory, $base, $extension,
+ $obj, $have_per_exec_flags, $var);
+ # Skip this entry if we were asked not to process it.
+ next if $r == LANG_IGNORE;
+
+ # Now extract linker and other info.
+ $linker = $lang->linker;
+
+ my $this_obj_ext;
+ if (defined $source_extension)
+ {
+ $this_obj_ext = $source_extension;
+ $derived_source = 1;
+ }
+ else
+ {
+ $this_obj_ext = $obj;
+ }
+ $object = $base . $this_obj_ext;
+
+ if ($have_per_exec_flags)
+ {
+ # We have a per-executable flag in effect for this
+ # object. In this case we rewrite the object's
+ # name to ensure it is unique.
+
+ # We choose the name 'DERIVED_OBJECT' to ensure
+ # (1) uniqueness, and (2) continuity between
+ # invocations. However, this will result in a
+ # name that is too long for losing systems, in
+ # some situations. So we provide _SHORTNAME to
+ # override.
+
+ my $dname = $derived;
+ my $var = var ($derived . '_SHORTNAME');
+ if ($var)
+ {
+ # FIXME: should use the same Condition as
+ # the _SOURCES variable. But this is really
+ # silly overkill -- nobody should have
+ # conditional shortnames.
+ $dname = $var->variable_value;
+ }
+ $object = $dname . '-' . $object;
+
+ prog_error ($lang->name . " flags defined without compiler")
+ if ! defined $lang->compile;
+
+ $renamed = 1;
+ }
+
+ # If rewrite said it was ok, put the object into a
+ # subdir.
+ if ($directory ne '')
+ {
+ if ($r == LANG_SUBDIR)
+ {
+ $object = $directory . '/' . $object;
+ }
+ else
+ {
+ # Since the next major version of automake (2.0) will
+ # make the behaviour so far only activated with the
+ # 'subdir-object' option mandatory, it's better if we
+ # start warning users not using that option.
+ # As suggested by Peter Johansson, we strive to avoid
+ # the warning when it would be irrelevant, i.e., if
+ # all source files sit in "current" directory.
+ msg_var 'unsupported', $var,
+ "source file '$full' is in a subdirectory,"
+ . "\nbut option 'subdir-objects' is disabled";
+ msg 'unsupported', INTERNAL, <<'EOF', uniq_scope => US_GLOBAL;
+possible forward-incompatibility.
+At least a source file is in a subdirectory, but the 'subdir-objects'
+automake option hasn't been enabled. For now, the corresponding output
+object file(s) will be placed in the top-level directory. However,
+this behaviour will change in future Automake versions: they will
+unconditionally cause object files to be placed in the same subdirectory
+of the corresponding sources.
+You are advised to start using 'subdir-objects' option throughout your
+project, to avoid future incompatibilities.
+EOF
+ }
+ }
+
+ # If the object file has been renamed (because per-target
+ # flags are used) we cannot compile the file with an
+ # inference rule: we need an explicit rule.
+ #
+ # If the source is in a subdirectory and the object is in
+ # the current directory, we also need an explicit rule.
+ #
+ # If both source and object files are in a subdirectory
+ # (this happens when the subdir-objects option is used),
+ # then the inference will work.
+ #
+ # The latter case deserves a historical note. When the
+ # subdir-objects option was added on 1999-04-11 it was
+ # thought that inferences rules would work for
+ # subdirectory objects too. Later, on 1999-11-22,
+ # automake was changed to output explicit rules even for
+ # subdir-objects. Nobody remembers why, but this occurred
+ # soon after the merge of the user-dep-gen-branch so it
+ # might be related. In late 2003 people complained about
+ # the size of the generated Makefile.ins (libgcj, with
+ # 2200+ subdir objects was reported to have a 9MB
+ # Makefile), so we now rely on inference rules again.
+ # Maybe we'll run across the same issue as in the past,
+ # but at least this time we can document it. However since
+ # dependency tracking has evolved it is possible that
+ # our old problem no longer exists.
+ # Using inference rules for subdir-objects has been tested
+ # with GNU make, Solaris make, Ultrix make, BSD make,
+ # HP-UX make, and OSF1 make successfully.
+ if ($renamed
+ || ($directory ne '' && ! option 'subdir-objects')
+ # We must also use specific rules for a nodist_ source
+ # if its language requests it.
+ || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
+ {
+ my $obj_sans_ext = substr ($object, 0,
+ - length ($this_obj_ext));
+ my $full_ansi;
+ if ($directory ne '')
+ {
+ $full_ansi = $directory . '/' . $base . $extension;
+ }
+ else
+ {
+ $full_ansi = $base . $extension;
+ }
+
+ my @specifics = ($full_ansi, $obj_sans_ext,
+ # Only use $this_obj_ext in the derived
+ # source case because in the other case we
+ # *don't* want $(OBJEXT) to appear here.
+ ($derived_source ? $this_obj_ext : '.o'),
+ $extension);
+
+ # If we renamed the object then we want to use the
+ # per-executable flag name. But if this is simply a
+ # subdir build then we still want to use the AM_ flag
+ # name.
+ if ($renamed)
+ {
+ unshift @specifics, $derived;
+ $aggregate = $derived;
+ }
+ else
+ {
+ unshift @specifics, 'AM';
+ }
+
+ # Each item on this list is a reference to a list consisting
+ # of four values followed by additional transform flags for
+ # file_contents. The four values are the derived flag prefix
+ # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
+ # source file, the base name of the output file, and
+ # the extension for the object file.
+ push (@{$lang_specific_files{$lang->name}},
+ [@specifics, %transform]);
+ }
+ }
+ elsif ($extension eq $obj)
+ {
+ # This is probably the result of a direct suffix rule.
+ # In this case we just accept the rewrite.
+ $object = "$base$extension";
+ $object = "$directory/$object" if $directory ne '';
+ $linker = '';
+ }
+ else
+ {
+ # No error message here. Used to have one, but it was
+ # very unpopular.
+ # FIXME: we could potentially do more processing here,
+ # perhaps treating the new extension as though it were a
+ # new source extension (as above). This would require
+ # more restructuring than is appropriate right now.
+ next;
+ }
+
+ err_am "object '$object' created by '$full' and '$object_map{$object}'"
+ if (defined $object_map{$object}
+ && $object_map{$object} ne $full);
+
+ my $comp_val = (($object =~ /\.lo$/)
+ ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
+ (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
+ if (defined $object_compilation_map{$comp_obj}
+ && $object_compilation_map{$comp_obj} != 0
+ # Only see the error once.
+ && ($object_compilation_map{$comp_obj}
+ != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
+ && $object_compilation_map{$comp_obj} != $comp_val)
+ {
+ err_am "object '$comp_obj' created both with libtool and without";
+ }
+ $object_compilation_map{$comp_obj} |= $comp_val;
+
+ if (defined $lang)
+ {
+ # Let the language do some special magic if required.
+ $lang->target_hook ($aggregate, $object, $full, %transform);
+ }
+
+ if ($derived_source)
+ {
+ prog_error ($lang->name . " has automatic dependency tracking")
+ if $lang->autodep ne 'no';
+ # Make sure this new source file is handled next. That will
+ # make it appear to be at the right place in the list.
+ unshift (@files, $object);
+ # Distribute derived sources unless the source they are
+ # derived from is not.
+ push_dist_common ($object)
+ unless ($topparent =~ /^(?:nobase_)?nodist_/);
+ next;
+ }
+
+ $linkers_used{$linker} = 1;
+
+ push (@result, $object);
+
+ if (! defined $object_map{$object})
+ {
+ my @dep_list = ();
+ $object_map{$object} = $full;
+
+ # If resulting object is in subdir, we need to make
+ # sure the subdir exists at build time.
+ if ($object =~ /\//)
+ {
+ # FIXME: check that $DIRECTORY is somewhere in the
+ # project
+
+ # For Java, the way we're handling it right now, a
+ # '..' component doesn't make sense.
+ if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
+ {
+ err_am "'$full' should not contain a '..' component";
+ }
+
+ # Make sure *all* objects files in the subdirectory are
+ # removed by "make mostlyclean". Not only this is more
+ # efficient than listing the object files to be removed
+ # individually (which would cause an 'rm' invocation for
+ # each of them -- very inefficient, see bug#10697), it
+ # would also leave stale object files in the subdirectory
+ # whenever a source file there is removed or renamed.
+ $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
+ if ($object =~ /\.lo$/)
+ {
+ # If we have a libtool object, then we also must remove
+ # any '.lo' objects in its same subdirectory.
+ $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
+ # Remember to cleanup .libs/ in this directory.
+ $libtool_clean_directories{$directory} = 1;
+ }
+
+ push (@dep_list, require_build_directory ($directory));
+
+ # If we're generating dependencies, we also want
+ # to make sure that the appropriate subdir of the
+ # .deps directory is created.
+ push (@dep_list,
+ require_build_directory ($directory . '/$(DEPDIR)'))
+ unless option 'no-dependencies';
+ }
+
+ pretty_print_rule ($object . ':', "\t", @dep_list)
+ if scalar @dep_list > 0;
+ }
+
+ # Transform .o or $o file into .P file (for automatic
+ # dependency code).
+ # Properly flatten multiple adjacent slashes, as Solaris 10 make
+ # might fail over them in an include statement.
+ # Leading double slashes may be special, as per Posix, so deal
+ # with them carefully.
+ if ($lang && $lang->autodep ne 'no')
+ {
+ my $depfile = $object;
+ $depfile =~ s/\.([^.]*)$/.P$1/;
+ $depfile =~ s/\$\(OBJEXT\)$/o/;
+ my $maybe_extra_leading_slash = '';
+ $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
+ $depfile =~ s,/+,/,g;
+ my $basename = basename ($depfile);
+ # This might make $dirname empty, but we account for that below.
+ (my $dirname = dirname ($depfile)) =~ s/\/*$//;
+ $dirname = $maybe_extra_leading_slash . $dirname;
+ $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
+ }
+ }
+
+ return @result;
+}
+
+
+# $LINKER
+# define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
+# $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
+# ---------------------------------------------------------------------------
+# Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
+#
+# Arguments are:
+# $VAR is the name of the _SOURCES variable
+# $OBJVAR is the name of the _OBJECTS variable if known (otherwise
+# it will be generated and returned).
+# $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
+# work done to determine the linker will be).
+# $ONE_FILE is the canonical (transformed) name of object to build
+# $OBJ is the object extension (i.e. either '.o' or '.lo').
+# $TOPPARENT is the _SOURCES variable being processed.
+# $WHERE context into which this definition is done
+# %TRANSFORM extra arguments to pass to file_contents when producing
+# rules
+#
+# Result is a pair ($LINKER, $OBJVAR):
+# $LINKER is a boolean, true if a linker is needed to deal with the objects
+sub define_objects_from_sources
+{
+ my ($var, $objvar, $nodefine, $one_file,
+ $obj, $topparent, $where, %transform) = @_;
+
+ my $needlinker = "";
+
+ transform_variable_recursively
+ ($var, $objvar, 'am__objects', $nodefine, $where,
+ # The transform code to run on each filename.
+ sub {
+ my ($subvar, $val, $cond, $full_cond) = @_;
+ my @trans = handle_single_transform ($subvar, $topparent,
+ $one_file, $obj, $val,
+ %transform);
+ $needlinker = "true" if @trans;
+ return @trans;
+ });
+
+ return $needlinker;
+}
+
+
+# handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
+# -----------------------------------------------------------------------------
+# Handle SOURCE->OBJECT transform for one program or library.
+# Arguments are:
+# canonical (transformed) name of target to build
+# actual target of object to build
+# object extension (i.e., either '.o' or '$o')
+# location of the source variable
+# extra arguments to pass to file_contents when producing rules
+# Return the name of the linker variable that must be used.
+# Empty return means just use 'LINK'.
+sub handle_source_transform
+{
+ # one_file is canonical name. unxformed is given name. obj is
+ # object extension.
+ my ($one_file, $unxformed, $obj, $where, %transform) = @_;
+
+ my $linker = '';
+
+ # No point in continuing if _OBJECTS is defined.
+ return if reject_var ($one_file . '_OBJECTS',
+ $one_file . '_OBJECTS should not be defined');
+
+ my %used_pfx = ();
+ my $needlinker;
+ %linkers_used = ();
+ foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
+ 'dist_EXTRA_', 'nodist_EXTRA_')
+ {
+ my $varname = $prefix . $one_file . "_SOURCES";
+ my $var = var $varname;
+ next unless $var;
+
+ # We are going to define _OBJECTS variables using the prefix.
+ # Then we glom them all together. So we can't use the null
+ # prefix here as we need it later.
+ my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
+
+ # Keep track of which prefixes we saw.
+ $used_pfx{$xpfx} = 1
+ unless $prefix =~ /EXTRA_/;
+
+ push @sources, "\$($varname)";
+ push @dist_sources, shadow_unconditionally ($varname, $where)
+ unless (option ('no-dist') || $prefix =~ /^nodist_/);
+
+ $needlinker |=
+ define_objects_from_sources ($varname,
+ $xpfx . $one_file . '_OBJECTS',
+ !!($prefix =~ /EXTRA_/),
+ $one_file, $obj, $varname, $where,
+ DIST_SOURCE => ($prefix !~ /^nodist_/),
+ %transform);
+ }
+ if ($needlinker)
+ {
+ $linker ||= resolve_linker (%linkers_used);
+ }
+
+ my @keys = sort keys %used_pfx;
+ if (scalar @keys == 0)
+ {
+ # The default source for libfoo.la is libfoo.c, but for
+ # backward compatibility we first look at libfoo_la.c,
+ # if no default source suffix is given.
+ my $old_default_source = "$one_file.c";
+ my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
+ my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
+ msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
+ if $default_source_ext =~ /[\t ]/;
+ (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
+ # TODO: Remove this backward-compatibility hack in Automake 2.0.
+ if ($old_default_source ne $default_source
+ && !$ext_var
+ && (rule $old_default_source
+ || rule '$(srcdir)/' . $old_default_source
+ || rule '${srcdir}/' . $old_default_source
+ || -f $old_default_source))
+ {
+ my $loc = $where->clone;
+ $loc->pop_context;
+ msg ('obsolete', $loc,
+ "the default source for '$unxformed' has been changed "
+ . "to '$default_source'.\n(Using '$old_default_source' for "
+ . "backward compatibility.)");
+ $default_source = $old_default_source;
+ }
+ # If a rule exists to build this source with a $(srcdir)
+ # prefix, use that prefix in our variables too. This is for
+ # the sake of BSD Make.
+ if (rule '$(srcdir)/' . $default_source
+ || rule '${srcdir}/' . $default_source)
+ {
+ $default_source = '$(srcdir)/' . $default_source;
+ }
+
+ define_variable ($one_file . "_SOURCES", $default_source, $where);
+ push (@sources, $default_source);
+ push (@dist_sources, $default_source);
+
+ %linkers_used = ();
+ my (@result) =
+ handle_single_transform ($one_file . '_SOURCES',
+ $one_file . '_SOURCES',
+ $one_file, $obj,
+ $default_source, %transform);
+ $linker ||= resolve_linker (%linkers_used);
+ define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
+ }
+ else
+ {
+ @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
+ define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
+ }
+
+ # If we want to use 'LINK' we must make sure it is defined.
+ if ($linker eq '')
+ {
+ $need_link = 1;
+ }
+
+ return $linker;
+}
+
+
+# handle_lib_objects ($XNAME, $VAR)
+# ---------------------------------
+# Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
+# Also, generate _DEPENDENCIES variable if appropriate.
+# Arguments are:
+# transformed name of object being built, or empty string if no object
+# name of _LDADD/_LIBADD-type variable to examine
+# Returns 1 if LIBOBJS seen, 0 otherwise.
+sub handle_lib_objects
+{
+ my ($xname, $varname) = @_;
+
+ my $var = var ($varname);
+ prog_error "'$varname' undefined"
+ unless $var;
+ prog_error "unexpected variable name '$varname'"
+ unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
+ my $prefix = $1 || 'AM_';
+
+ my $seen_libobjs = 0;
+ my $flagvar = 0;
+
+ transform_variable_recursively
+ ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
+ ! $xname, INTERNAL,
+ # Transformation function, run on each filename.
+ sub {
+ my ($subvar, $val, $cond, $full_cond) = @_;
+
+ if ($val =~ /^-/)
+ {
+ # Skip -lfoo and -Ldir silently; these are explicitly allowed.
+ if ($val !~ /^-[lL]/ &&
+ # Skip -dlopen and -dlpreopen; these are explicitly allowed
+ # for Libtool libraries or programs. (Actually we are a bit
+ # lax here since this code also applies to non-libtool
+ # libraries or programs, for which -dlopen and -dlopreopen
+ # are pure nonsense. Diagnosing this doesn't seem very
+ # important: the developer will quickly get complaints from
+ # the linker.)
+ $val !~ /^-dl(?:pre)?open$/ &&
+ # Only get this error once.
+ ! $flagvar)
+ {
+ $flagvar = 1;
+ # FIXME: should display a stack of nested variables
+ # as context when $var != $subvar.
+ err_var ($var, "linker flags such as '$val' belong in "
+ . "'${prefix}LDFLAGS'");
+ }
+ return ();
+ }
+ elsif ($val !~ /^\@.*\@$/)
+ {
+ # Assume we have a file of some sort, and output it into the
+ # dependency variable. Autoconf substitutions are not output;
+ # rarely is a new dependency substituted into e.g. foo_LDADD
+ # -- but bad things (e.g. -lX11) are routinely substituted.
+ # Note that LIBOBJS and ALLOCA are exceptions to this rule,
+ # and handled specially below.
+ return $val;
+ }
+ elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
+ {
+ handle_LIBOBJS ($subvar, $cond, $1);
+ $seen_libobjs = 1;
+ return $val;
+ }
+ elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
+ {
+ handle_ALLOCA ($subvar, $cond, $1);
+ return $val;
+ }
+ else
+ {
+ return ();
+ }
+ });
+
+ return $seen_libobjs;
+}
+
+# handle_LIBOBJS_or_ALLOCA ($VAR)
+# -------------------------------
+# Definitions common to LIBOBJS and ALLOCA.
+# VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
+sub handle_LIBOBJS_or_ALLOCA
+{
+ my ($var) = @_;
+
+ my $dir = '';
+
+ # If LIBOBJS files must be built in another directory we have
+ # to define LIBOBJDIR and ensure the files get cleaned.
+ # Otherwise LIBOBJDIR can be left undefined, and the cleaning
+ # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
+ if ($config_libobj_dir
+ && $relative_dir ne $config_libobj_dir)
+ {
+ if (option 'subdir-objects')
+ {
+ # In the top-level Makefile we do not use $(top_builddir), because
+ # we are already there, and since the targets are built without
+ # a $(top_builddir), it helps BSD Make to match them with
+ # dependencies.
+ $dir = "$config_libobj_dir/"
+ if $config_libobj_dir ne '.';
+ $dir = backname ($relative_dir) . "/$dir"
+ if $relative_dir ne '.';
+ define_variable ('LIBOBJDIR', "$dir", INTERNAL);
+ $clean_files{"\$($var)"} = MOSTLY_CLEAN;
+ # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
+ # be created by libtool as a side-effect of creating LTLIBOBJS).
+ $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
+ }
+ else
+ {
+ error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
+ . " 'subdir-objects' is not set");
+ }
+ }
+
+ return $dir;
+}
+
+sub handle_LIBOBJS
+{
+ my ($var, $cond, $lt) = @_;
+ my $myobjext = $lt ? 'lo' : 'o';
+ $lt ||= '';
+
+ $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
+ if ! keys %libsources;
+
+ my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
+
+ foreach my $iter (keys %libsources)
+ {
+ if ($iter =~ /\.[cly]$/)
+ {
+ saw_extension ($&);
+ saw_extension ('.c');
+ }
+
+ if ($iter =~ /\.h$/)
+ {
+ require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
+ }
+ elsif ($iter ne 'alloca.c')
+ {
+ my $rewrite = $iter;
+ $rewrite =~ s/\.c$/.P$myobjext/;
+ $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
+ $rewrite = "^" . quotemeta ($iter) . "\$";
+ # Only require the file if it is not a built source.
+ my $bs = var ('BUILT_SOURCES');
+ if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
+ {
+ require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
+ }
+ }
+ }
+}
+
+sub handle_ALLOCA
+{
+ my ($var, $cond, $lt) = @_;
+ my $myobjext = $lt ? 'lo' : 'o';
+ $lt ||= '';
+ my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
+
+ $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
+ $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
+ require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
+ saw_extension ('.c');
+}
+
+# Canonicalize the input parameter.
+sub canonicalize
+{
+ my ($string) = @_;
+ $string =~ tr/A-Za-z0-9_\@/_/c;
+ return $string;
+}
+
+# Canonicalize a name, and check to make sure the non-canonical name
+# is never used. Returns canonical name. Arguments are name and a
+# list of suffixes to check for.
+sub check_canonical_spelling
+{
+ my ($name, @suffixes) = @_;
+
+ my $xname = canonicalize ($name);
+ if ($xname ne $name)
+ {
+ foreach my $xt (@suffixes)
+ {
+ reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
+ }
+ }
+
+ return $xname;
+}
+
+# Set up the compile suite.
+sub handle_compile ()
+{
+ return if ! $must_handle_compiled_objects;
+
+ # Boilerplate.
+ my $default_includes = '';
+ if (! option 'nostdinc')
+ {
+ my @incs = ('-I.', subst ('am__isrc'));
+
+ my $var = var 'CONFIG_HEADER';
+ if ($var)
+ {
+ foreach my $hdr (split (' ', $var->variable_value))
+ {
+ push @incs, '-I' . dirname ($hdr);
+ }
+ }
+ # We want '-I. -I$(srcdir)', but the latter -I is redundant
+ # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
+ # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
+ # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
+ # to just put @am__isrc@ right after '-I.', without a space.
+ ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
+ }
+
+ my (@mostly_rms, @dist_rms);
+ foreach my $item (sort keys %compile_clean_files)
+ {
+ if ($compile_clean_files{$item} == MOSTLY_CLEAN)
+ {
+ push (@mostly_rms, "\t-rm -f $item");
+ }
+ elsif ($compile_clean_files{$item} == DIST_CLEAN)
+ {
+ push (@dist_rms, "\t-rm -f $item");
+ }
+ else
+ {
+ prog_error 'invalid entry in %compile_clean_files';
+ }
+ }
+
+ my ($coms, $vars, $rules) =
+ file_contents_internal (1, "$libdir/am/compile.am",
+ new Automake::Location,
+ 'DEFAULT_INCLUDES' => $default_includes,
+ 'MOSTLYRMS' => join ("\n", @mostly_rms),
+ 'DISTRMS' => join ("\n", @dist_rms));
+ $output_vars .= $vars;
+ $output_rules .= "$coms$rules";
+}
+
+# Handle libtool rules.
+sub handle_libtool ()
+{
+ return unless var ('LIBTOOL');
+
+ # Libtool requires some files, but only at top level.
+ # (Starting with Libtool 2.0 we do not have to bother. These
+ # requirements are done with AC_REQUIRE_AUX_FILE.)
+ require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
+ if $relative_dir eq '.' && ! $libtool_new_api;
+
+ my @libtool_rms;
+ foreach my $item (sort keys %libtool_clean_directories)
+ {
+ my $dir = ($item eq '.') ? '' : "$item/";
+ # .libs is for Unix, _libs for DOS.
+ push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
+ }
+
+ check_user_variables 'LIBTOOLFLAGS';
+
+ # Output the libtool compilation rules.
+ $output_rules .= file_contents ('libtool',
+ new Automake::Location,
+ LTRMS => join ("\n", @libtool_rms));
+}
+
+
+sub handle_programs ()
+{
+ my @proglist = am_install_var ('progs', 'PROGRAMS',
+ 'bin', 'sbin', 'libexec', 'pkglibexec',
+ 'noinst', 'check');
+ return if ! @proglist;
+ $must_handle_compiled_objects = 1;
+
+ my $seen_global_libobjs =
+ var ('LDADD') && handle_lib_objects ('', 'LDADD');
+
+ foreach my $pair (@proglist)
+ {
+ my ($where, $one_file) = @$pair;
+
+ my $seen_libobjs = 0;
+ my $obj = '.$(OBJEXT)';
+
+ $known_programs{$one_file} = $where;
+
+ # Canonicalize names and check for misspellings.
+ my $xname = check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
+ '_SOURCES', '_OBJECTS',
+ '_DEPENDENCIES');
+
+ $where->push_context ("while processing program '$one_file'");
+ $where->set (INTERNAL->get);
+
+ my $linker = handle_source_transform ($xname, $one_file, $obj, $where,
+ NONLIBTOOL => 1, LIBTOOL => 0);
+
+ if (var ($xname . "_LDADD"))
+ {
+ $seen_libobjs = handle_lib_objects ($xname, $xname . '_LDADD');
+ }
+ else
+ {
+ # User didn't define prog_LDADD override. So do it.
+ define_variable ($xname . '_LDADD', '$(LDADD)', $where);
+
+ # This does a bit too much work. But we need it to
+ # generate _DEPENDENCIES when appropriate.
+ if (var ('LDADD'))
+ {
+ $seen_libobjs = handle_lib_objects ($xname, 'LDADD');
+ }
+ }
+
+ reject_var ($xname . '_LIBADD',
+ "use '${xname}_LDADD', not '${xname}_LIBADD'");
+
+ set_seen ($xname . '_DEPENDENCIES');
+ set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
+ set_seen ($xname . '_LDFLAGS');
+
+ # Determine program to use for link.
+ my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xname);
+ $vlink = verbose_flag ($vlink || 'GEN');
+
+ # If the resulting program lies in a subdirectory,
+ # ensure that the directory exists before we need it.
+ my $dirstamp = require_build_directory_maybe ($one_file);
+
+ $libtool_clean_directories{dirname ($one_file)} = 1;
+
+ $output_rules .= file_contents ('program',
+ $where,
+ PROGRAM => $one_file,
+ XPROGRAM => $xname,
+ XLINK => $xlink,
+ VERBOSE => $vlink,
+ DIRSTAMP => $dirstamp,
+ EXEEXT => '$(EXEEXT)');
+
+ if ($seen_libobjs || $seen_global_libobjs)
+ {
+ if (var ($xname . '_LDADD'))
+ {
+ check_libobjs_sources ($xname, $xname . '_LDADD');
+ }
+ elsif (var ('LDADD'))
+ {
+ check_libobjs_sources ($xname, 'LDADD');
+ }
+ }
+ }
+}
+
+
+sub handle_libraries ()
+{
+ my @liblist = am_install_var ('libs', 'LIBRARIES',
+ 'lib', 'pkglib', 'noinst', 'check');
+ return if ! @liblist;
+ $must_handle_compiled_objects = 1;
+
+ my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
+ 'noinst', 'check');
+
+ if (@prefix)
+ {
+ my $var = rvar ($prefix[0] . '_LIBRARIES');
+ $var->requires_variables ('library used', 'RANLIB');
+ }
+
+ define_variable ('AR', 'ar', INTERNAL);
+ define_variable ('ARFLAGS', 'cru', INTERNAL);
+ define_verbose_tagvar ('AR');
+
+ foreach my $pair (@liblist)
+ {
+ my ($where, $onelib) = @$pair;
+
+ my $seen_libobjs = 0;
+ # Check that the library fits the standard naming convention.
+ my $bn = basename ($onelib);
+ if ($bn !~ /^lib.*\.a$/)
+ {
+ $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
+ my $suggestion = dirname ($onelib) . "/$bn";
+ $suggestion =~ s|^\./||g;
+ msg ('error-gnu/warn', $where,
+ "'$onelib' is not a standard library name\n"
+ . "did you mean '$suggestion'?")
+ }
+
+ ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
+
+ $where->push_context ("while processing library '$onelib'");
+ $where->set (INTERNAL->get);
+
+ my $obj = '.$(OBJEXT)';
+
+ # Canonicalize names and check for misspellings.
+ my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
+ '_OBJECTS', '_DEPENDENCIES',
+ '_AR');
+
+ if (! var ($xlib . '_AR'))
+ {
+ define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
+ }
+
+ # Generate support for conditional object inclusion in
+ # libraries.
+ if (var ($xlib . '_LIBADD'))
+ {
+ if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
+ {
+ $seen_libobjs = 1;
+ }
+ }
+ else
+ {
+ define_variable ($xlib . "_LIBADD", '', $where);
+ }
+
+ reject_var ($xlib . '_LDADD',
+ "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
+
+ # Make sure we at look at this.
+ set_seen ($xlib . '_DEPENDENCIES');
+ set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
+
+ handle_source_transform ($xlib, $onelib, $obj, $where,
+ NONLIBTOOL => 1, LIBTOOL => 0);
+
+ # If the resulting library lies in a subdirectory,
+ # make sure this directory will exist.
+ my $dirstamp = require_build_directory_maybe ($onelib);
+ my $verbose = verbose_flag ('AR');
+ my $silent = silent_flag ();
+
+ $output_rules .= file_contents ('library',
+ $where,
+ VERBOSE => $verbose,
+ SILENT => $silent,
+ LIBRARY => $onelib,
+ XLIBRARY => $xlib,
+ DIRSTAMP => $dirstamp);
+
+ if ($seen_libobjs)
+ {
+ if (var ($xlib . '_LIBADD'))
+ {
+ check_libobjs_sources ($xlib, $xlib . '_LIBADD');
+ }
+ }
+
+ if (! $seen_ar)
+ {
+ msg ('extra-portability', $where,
+ "'$onelib': linking libraries using a non-POSIX\n"
+ . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
+ }
+ }
+}
+
+
+sub handle_ltlibraries ()
+{
+ my @liblist = am_install_var ('ltlib', 'LTLIBRARIES',
+ 'noinst', 'lib', 'pkglib', 'check');
+ return if ! @liblist;
+ $must_handle_compiled_objects = 1;
+
+ my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
+ 'noinst', 'check');
+
+ if (@prefix)
+ {
+ my $var = rvar ($prefix[0] . '_LTLIBRARIES');
+ $var->requires_variables ('Libtool library used', 'LIBTOOL');
+ }
+
+ my %instdirs = ();
+ my %instsubdirs = ();
+ my %instconds = ();
+ my %liblocations = (); # Location (in Makefile.am) of each library.
+
+ foreach my $key (@prefix)
+ {
+ # Get the installation directory of each library.
+ my $dir = $key;
+ my $strip_subdir = 1;
+ if ($dir =~ /^nobase_/)
+ {
+ $dir =~ s/^nobase_//;
+ $strip_subdir = 0;
+ }
+ my $var = rvar ($key . '_LTLIBRARIES');
+
+ # We reject libraries which are installed in several places
+ # in the same condition, because we can only specify one
+ # '-rpath' option.
+ $var->traverse_recursively
+ (sub
+ {
+ my ($var, $val, $cond, $full_cond) = @_;
+ my $hcond = $full_cond->human;
+ my $where = $var->rdef ($cond)->location;
+ my $ldir = '';
+ $ldir = '/' . dirname ($val)
+ if (!$strip_subdir);
+ # A library cannot be installed in different directories
+ # in overlapping conditions.
+ if (exists $instconds{$val})
+ {
+ my ($msg, $acond) =
+ $instconds{$val}->ambiguous_p ($val, $full_cond);
+
+ if ($msg)
+ {
+ error ($where, $msg, partial => 1);
+ my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
+ $dirtxt = "built for '$dir'"
+ if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
+ my $dircond =
+ $full_cond->true ? "" : " in condition $hcond";
+
+ error ($where, "'$val' should be $dirtxt$dircond ...",
+ partial => 1);
+
+ my $hacond = $acond->human;
+ my $adir = $instdirs{$val}{$acond};
+ my $adirtxt = "installed in '$adir'";
+ $adirtxt = "built for '$adir'"
+ if ($adir eq 'EXTRA' || $adir eq 'noinst'
+ || $adir eq 'check');
+ my $adircond = $acond->true ? "" : " in condition $hacond";
+
+ my $onlyone = ($dir ne $adir) ?
+ ("\nLibtool libraries can be built for only one "
+ . "destination") : "";
+
+ error ($liblocations{$val}{$acond},
+ "... and should also be $adirtxt$adircond.$onlyone");
+ return;
+ }
+ }
+ else
+ {
+ $instconds{$val} = new Automake::DisjConditions;
+ }
+ $instdirs{$val}{$full_cond} = $dir;
+ $instsubdirs{$val}{$full_cond} = $ldir;
+ $liblocations{$val}{$full_cond} = $where;
+ $instconds{$val} = $instconds{$val}->merge ($full_cond);
+ },
+ sub
+ {
+ return ();
+ },
+ skip_ac_subst => 1);
+ }
+
+ foreach my $pair (@liblist)
+ {
+ my ($where, $onelib) = @$pair;
+
+ my $seen_libobjs = 0;
+ my $obj = '.lo';
+
+ # Canonicalize names and check for misspellings.
+ my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
+ '_SOURCES', '_OBJECTS',
+ '_DEPENDENCIES');
+
+ # Check that the library fits the standard naming convention.
+ my $libname_rx = '^lib.*\.la';
+ my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
+ my $ldvar2 = var ('LDFLAGS');
+ if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
+ || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
+ {
+ # Relax name checking for libtool modules.
+ $libname_rx = '\.la';
+ }
+
+ my $bn = basename ($onelib);
+ if ($bn !~ /$libname_rx$/)
+ {
+ my $type = 'library';
+ if ($libname_rx eq '\.la')
+ {
+ $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
+ $type = 'module';
+ }
+ else
+ {
+ $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
+ }
+ my $suggestion = dirname ($onelib) . "/$bn";
+ $suggestion =~ s|^\./||g;
+ msg ('error-gnu/warn', $where,
+ "'$onelib' is not a standard libtool $type name\n"
+ . "did you mean '$suggestion'?")
+ }
+
+ ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
+
+ $where->push_context ("while processing Libtool library '$onelib'");
+ $where->set (INTERNAL->get);
+
+ # Make sure we look at these.
+ set_seen ($xlib . '_LDFLAGS');
+ set_seen ($xlib . '_DEPENDENCIES');
+ set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
+
+ # Generate support for conditional object inclusion in
+ # libraries.
+ if (var ($xlib . '_LIBADD'))
+ {
+ if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
+ {
+ $seen_libobjs = 1;
+ }
+ }
+ else
+ {
+ define_variable ($xlib . "_LIBADD", '', $where);
+ }
+
+ reject_var ("${xlib}_LDADD",
+ "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
+
+
+ my $linker = handle_source_transform ($xlib, $onelib, $obj, $where,
+ NONLIBTOOL => 0, LIBTOOL => 1);
+
+ # Determine program to use for link.
+ my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xlib);
+ $vlink = verbose_flag ($vlink || 'GEN');
+
+ my $rpathvar = "am_${xlib}_rpath";
+ my $rpath = "\$($rpathvar)";
+ foreach my $rcond ($instconds{$onelib}->conds)
+ {
+ my $val;
+ if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
+ || $instdirs{$onelib}{$rcond} eq 'noinst'
+ || $instdirs{$onelib}{$rcond} eq 'check')
+ {
+ # It's an EXTRA_ library, so we can't specify -rpath,
+ # because we don't know where the library will end up.
+ # The user probably knows, but generally speaking automake
+ # doesn't -- and in fact configure could decide
+ # dynamically between two different locations.
+ $val = '';
+ }
+ else
+ {
+ $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
+ $val .= $instsubdirs{$onelib}{$rcond}
+ if defined $instsubdirs{$onelib}{$rcond};
+ }
+ if ($rcond->true)
+ {
+ # If $rcond is true there is only one condition and
+ # there is no point defining an helper variable.
+ $rpath = $val;
+ }
+ else
+ {
+ define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
+ }
+ }
+
+ # If the resulting library lies in a subdirectory,
+ # make sure this directory will exist.
+ my $dirstamp = require_build_directory_maybe ($onelib);
+
+ # Remember to cleanup .libs/ in this directory.
+ my $dirname = dirname $onelib;
+ $libtool_clean_directories{$dirname} = 1;
+
+ $output_rules .= file_contents ('ltlibrary',
+ $where,
+ LTLIBRARY => $onelib,
+ XLTLIBRARY => $xlib,
+ RPATH => $rpath,
+ XLINK => $xlink,
+ VERBOSE => $vlink,
+ DIRSTAMP => $dirstamp);
+ if ($seen_libobjs)
+ {
+ if (var ($xlib . '_LIBADD'))
+ {
+ check_libobjs_sources ($xlib, $xlib . '_LIBADD');
+ }
+ }
+
+ if (! $seen_ar)
+ {
+ msg ('extra-portability', $where,
+ "'$onelib': linking libtool libraries using a non-POSIX\n"
+ . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
+ }
+ }
+}
+
+# See if any _SOURCES variable were misspelled.
+sub check_typos ()
+{
+ # It is ok if the user sets this particular variable.
+ set_seen 'AM_LDFLAGS';
+
+ foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
+ {
+ foreach my $var (variables $primary)
+ {
+ my $varname = $var->name;
+ # A configure variable is always legitimate.
+ next if exists $configure_vars{$varname};
+
+ for my $cond ($var->conditions->conds)
+ {
+ $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
+ msg_var ('syntax', $var, "variable '$varname' is defined but no"
+ . " program or\nlibrary has '$1' as canonical name"
+ . " (possible typo)")
+ unless $var->rdef ($cond)->seen;
+ }
+ }
+ }
+}
+
+
+sub handle_scripts ()
+{
+ # NOTE we no longer automatically clean SCRIPTS, because it is
+ # useful to sometimes distribute scripts verbatim. This happens
+ # e.g. in Automake itself.
+ am_install_var ('-candist', 'scripts', 'SCRIPTS',
+ 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
+ 'noinst', 'check');
+}
+
+
+## ------------------------ ##
+## Handling Texinfo files. ##
+## ------------------------ ##
+
+# ($OUTFILE, $VFILE)
+# scan_texinfo_file ($FILENAME)
+# -----------------------------
+# $OUTFILE - name of the info file produced by $FILENAME.
+# $VFILE - name of the version.texi file used (undef if none).
+sub scan_texinfo_file
+{
+ my ($filename) = @_;
+
+ my $texi = new Automake::XFile "< $filename";
+ verb "reading $filename";
+
+ my ($outfile, $vfile);
+ while ($_ = $texi->getline)
+ {
+ if (/^\@setfilename +(\S+)/)
+ {
+ # Honor only the first @setfilename. (It's possible to have
+ # more occurrences later if the manual shows examples of how
+ # to use @setfilename...)
+ next if $outfile;
+
+ $outfile = $1;
+ if (index ($outfile, '.') < 0)
+ {
+ msg 'obsolete', "$filename:$.",
+ "use of suffix-less info files is discouraged"
+ }
+ elsif ($outfile !~ /\.info$/)
+ {
+ error ("$filename:$.",
+ "output '$outfile' has unrecognized extension");
+ return;
+ }
+ }
+ # A "version.texi" file is actually any file whose name matches
+ # "vers*.texi".
+ elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
+ {
+ $vfile = $1;
+ }
+ }
+
+ if (! $outfile)
+ {
+ err_am "'$filename' missing \@setfilename";
+ return;
+ }
+
+ return ($outfile, $vfile);
+}
+
+
+# ($DIRSTAMP, @CLEAN_FILES)
+# output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
+# ------------------------------------------------------------------
+# SOURCE - the source Texinfo file
+# DEST - the destination Info file
+# INSRC - whether DEST should be built in the source tree
+# DEPENDENCIES - known dependencies
+sub output_texinfo_build_rules
+{
+ my ($source, $dest, $insrc, @deps) = @_;
+
+ # Split 'a.texi' into 'a' and '.texi'.
+ my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
+ my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
+
+ $ssfx ||= "";
+ $dsfx ||= "";
+
+ # We can output two kinds of rules: the "generic" rules use Make
+ # suffix rules and are appropriate when $source and $dest do not lie
+ # in a sub-directory; the "specific" rules are needed in the other
+ # case.
+ #
+ # The former are output only once (this is not really apparent here,
+ # but just remember that some logic deeper in Automake will not
+ # output the same rule twice); while the later need to be output for
+ # each Texinfo source.
+ my $generic;
+ my $makeinfoflags;
+ my $sdir = dirname $source;
+ if ($sdir eq '.' && dirname ($dest) eq '.')
+ {
+ $generic = 1;
+ $makeinfoflags = '-I $(srcdir)';
+ }
+ else
+ {
+ $generic = 0;
+ $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
+ }
+
+ # A directory can contain two kinds of info files: some built in the
+ # source tree, and some built in the build tree. The rules are
+ # different in each case. However we cannot output two different
+ # set of generic rules. Because in-source builds are more usual, we
+ # use generic rules in this case and fall back to "specific" rules
+ # for build-dir builds. (It should not be a problem to invert this
+ # if needed.)
+ $generic = 0 unless $insrc;
+
+ # We cannot use a suffix rule to build info files with an empty
+ # extension. Otherwise we would output a single suffix inference
+ # rule, with separate dependencies, as in
+ #
+ # .texi:
+ # $(MAKEINFO) ...
+ # foo.info: foo.texi
+ #
+ # which confuse Solaris make. (See the Autoconf manual for
+ # details.) Therefore we use a specific rule in this case. This
+ # applies to info files only (dvi and pdf files always have an
+ # extension).
+ my $generic_info = ($generic && $dsfx) ? 1 : 0;
+
+ # If the resulting file lies in a subdirectory,
+ # make sure this directory will exist.
+ my $dirstamp = require_build_directory_maybe ($dest);
+
+ my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
+
+ $output_rules .= file_contents ('texibuild',
+ new Automake::Location,
+ AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
+ AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
+ AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
+ DEPS => "@deps",
+ DEST_PREFIX => $dpfx,
+ DEST_INFO_PREFIX => $dipfx,
+ DEST_SUFFIX => $dsfx,
+ DIRSTAMP => $dirstamp,
+ GENERIC => $generic,
+ GENERIC_INFO => $generic_info,
+ INSRC => $insrc,
+ MAKEINFOFLAGS => $makeinfoflags,
+ SILENT => silent_flag(),
+ SOURCE => ($generic
+ ? '$<' : $source),
+ SOURCE_INFO => ($generic_info
+ ? '$<' : $source),
+ SOURCE_REAL => $source,
+ SOURCE_SUFFIX => $ssfx,
+ TEXIQUIET => verbose_flag('texinfo'),
+ TEXIDEVNULL => verbose_flag('texidevnull'),
+ );
+ return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
+}
+
+
+# ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
+# handle_texinfo_helper ($info_texinfos)
+# --------------------------------------
+# Handle all Texinfo source; helper for 'handle_texinfo'.
+sub handle_texinfo_helper
+{
+ my ($info_texinfos) = @_;
+ my (@infobase, @info_deps_list, @texi_deps);
+ my %versions;
+ my $done = 0;
+ my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
+
+ # Build a regex matching user-cleaned files.
+ my $d = var 'DISTCLEANFILES';
+ my $c = var 'CLEANFILES';
+ my @f = ();
+ push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
+ push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
+ @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
+ my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
+
+ foreach my $texi
+ ($info_texinfos->value_as_list_recursive (inner_expand => 1))
+ {
+ my $infobase = $texi;
+ if ($infobase =~ s/\.texi$//)
+ {
+ 1; # Nothing more to do.
+ }
+ elsif ($infobase =~ s/\.(txi|texinfo)$//)
+ {
+ msg_var 'obsolete', $info_texinfos,
+ "suffix '.$1' for Texinfo files is discouraged;" .
+ " use '.texi' instead";
+ }
+ else
+ {
+ # FIXME: report line number.
+ err_am "texinfo file '$texi' has unrecognized extension";
+ next;
+ }
+
+ push @infobase, $infobase;
+
+ # If 'version.texi' is referenced by input file, then include
+ # automatic versioning capability.
+ my ($out_file, $vtexi) =
+ scan_texinfo_file ("$relative_dir/$texi")
+ or next;
+ # Directory of auxiliary files and build by-products used by texi2dvi
+ # and texi2pdf.
+ push @mostly_cleans, "$infobase.t2d";
+ push @mostly_cleans, "$infobase.t2p";
+
+ # If the Texinfo source is in a subdirectory, create the
+ # resulting info in this subdirectory. If it is in the current
+ # directory, try hard to not prefix "./" because it breaks the
+ # generic rules.
+ my $outdir = dirname ($texi) . '/';
+ $outdir = "" if $outdir eq './';
+ $out_file = $outdir . $out_file;
+
+ # Until Automake 1.6.3, .info files were built in the
+ # source tree. This was an obstacle to the support of
+ # non-distributed .info files, and non-distributed .texi
+ # files.
+ #
+ # * Non-distributed .texi files is important in some packages
+ # where .texi files are built at make time, probably using
+ # other binaries built in the package itself, maybe using
+ # tools or information found on the build host. Because
+ # these files are not distributed they are always rebuilt
+ # at make time; they should therefore not lie in the source
+ # directory. One plan was to support this using
+ # nodist_info_TEXINFOS or something similar. (Doing this
+ # requires some sanity checks. For instance Automake should
+ # not allow:
+ # dist_info_TEXINFOS = foo.texi
+ # nodist_foo_TEXINFOS = included.texi
+ # because a distributed file should never depend on a
+ # non-distributed file.)
+ #
+ # * If .texi files are not distributed, then .info files should
+ # not be distributed either. There are also cases where one
+ # wants to distribute .texi files, but does not want to
+ # distribute the .info files. For instance the Texinfo package
+ # distributes the tool used to build these files; it would
+ # be a waste of space to distribute them. It's not clear
+ # which syntax we should use to indicate that .info files should
+ # not be distributed. Akim Demaille suggested that eventually
+ # we switch to a new syntax:
+ # | Maybe we should take some inspiration from what's already
+ # | done in the rest of Automake. Maybe there is too much
+ # | syntactic sugar here, and you want
+ # | nodist_INFO = bar.info
+ # | dist_bar_info_SOURCES = bar.texi
+ # | bar_texi_DEPENDENCIES = foo.texi
+ # | with a bit of magic to have bar.info represent the whole
+ # | bar*info set. That's a lot more verbose that the current
+ # | situation, but it is # not new, hence the user has less
+ # | to learn.
+ # |
+ # | But there is still too much room for meaningless specs:
+ # | nodist_INFO = bar.info
+ # | dist_bar_info_SOURCES = bar.texi
+ # | dist_PS = bar.ps something-written-by-hand.ps
+ # | nodist_bar_ps_SOURCES = bar.texi
+ # | bar_texi_DEPENDENCIES = foo.texi
+ # | here bar.texi is dist_ in line 2, and nodist_ in 4.
+ #
+ # Back to the point, it should be clear that in order to support
+ # non-distributed .info files, we need to build them in the
+ # build tree, not in the source tree (non-distributed .texi
+ # files are less of a problem, because we do not output build
+ # rules for them). In Automake 1.7 .info build rules have been
+ # largely cleaned up so that .info files get always build in the
+ # build tree, even when distributed. The idea was that
+ # (1) if during a VPATH build the .info file was found to be
+ # absent or out-of-date (in the source tree or in the
+ # build tree), Make would rebuild it in the build tree.
+ # If an up-to-date source-tree of the .info file existed,
+ # make would not rebuild it in the build tree.
+ # (2) having two copies of .info files, one in the source tree
+ # and one (newer) in the build tree is not a problem
+ # because 'make dist' always pick files in the build tree
+ # first.
+ # However it turned out the be a bad idea for several reasons:
+ # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
+ # like GNU Make on point (1) above. These implementations
+ # of Make would always rebuild .info files in the build
+ # tree, even if such files were up to date in the source
+ # tree. Consequently, it was impossible to perform a VPATH
+ # build of a package containing Texinfo files using these
+ # Make implementations.
+ # (Refer to the Autoconf Manual, section "Limitation of
+ # Make", paragraph "VPATH", item "target lookup", for
+ # an account of the differences between these
+ # implementations.)
+ # * The GNU Coding Standards require these files to be built
+ # in the source-tree (when they are distributed, that is).
+ # * Keeping a fresher copy of distributed files in the
+ # build tree can be annoying during development because
+ # - if the files is kept under CVS, you really want it
+ # to be updated in the source tree
+ # - it is confusing that 'make distclean' does not erase
+ # all files in the build tree.
+ #
+ # Consequently, starting with Automake 1.8, .info files are
+ # built in the source tree again. Because we still plan to
+ # support non-distributed .info files at some point, we
+ # have a single variable ($INSRC) that controls whether
+ # the current .info file must be built in the source tree
+ # or in the build tree. Actually this variable is switched
+ # off in two cases:
+ # (1) For '.info' files that appear to be cleaned; this is for
+ # backward compatibility with package such as Texinfo,
+ # which do things like
+ # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
+ # DISTCLEANFILES = texinfo texinfo-* info*.info*
+ # # Do not create info files for distribution.
+ # dist-info:
+ # in order not to distribute .info files.
+ # (2) When the undocumented option 'info-in-builddir' is given.
+ # This is done to allow the developers of GCC, GDB, GNU
+ # binutils and the GNU bfd library to force the '.info' files
+ # to be generated in the builddir rather than the srcdir, as
+ # was once done when the (now removed) 'cygnus' option was
+ # given. See automake bug#11034 for more discussion.
+ my $insrc = 1;
+ my $soutdir = '$(srcdir)/' . $outdir;
+
+ if (option 'info-in-builddir')
+ {
+ $insrc = 0;
+ }
+ elsif ($out_file =~ $user_cleaned_files)
+ {
+ $insrc = 0;
+ msg 'obsolete', "$am_file.am", <<EOF;
+Oops!
+ It appears this file (or files included by it) are triggering
+ an undocumented, soon-to-be-removed automake hack.
+ Future automake versions will no longer place in the builddir
+ (rather than in the srcdir) the generated '.info' files that
+ appear to be cleaned, by e.g. being listed in CLEANFILES or
+ DISTCLEANFILES.
+ If you want your '.info' files to be placed in the builddir
+ rather than in the srcdir, you have to use the shiny new
+ 'info-in-builddir' automake option.
+EOF
+ }
+
+ $outdir = $soutdir if $insrc;
+
+ # If user specified file_TEXINFOS, then use that as explicit
+ # dependency list.
+ @texi_deps = ();
+ push (@texi_deps, "${soutdir}${vtexi}") if $vtexi;
+
+ my $canonical = canonicalize ($infobase);
+ if (var ($canonical . "_TEXINFOS"))
+ {
+ push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
+ push_dist_common ('$(' . $canonical . '_TEXINFOS)');
+ }
+
+ my ($dirstamp, @cfiles) =
+ output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
+ push (@texi_cleans, @cfiles);
+
+ push (@info_deps_list, $out_file);
+
+ # If a vers*.texi file is needed, emit the rule.
+ if ($vtexi)
+ {
+ err_am ("'$vtexi', included in '$texi', "
+ . "also included in '$versions{$vtexi}'")
+ if defined $versions{$vtexi};
+ $versions{$vtexi} = $texi;
+
+ # We number the stamp-vti files. This is doable since the
+ # actual names don't matter much. We only number starting
+ # with the second one, so that the common case looks nice.
+ my $vti = ($done ? $done : 'vti');
+ ++$done;
+
+ # This is ugly, but it is our historical practice.
+ if ($config_aux_dir_set_in_configure_ac)
+ {
+ require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
+ 'mdate-sh');
+ }
+ else
+ {
+ require_file_with_macro (TRUE, 'info_TEXINFOS',
+ FOREIGN, 'mdate-sh');
+ }
+
+ my $conf_dir;
+ if ($config_aux_dir_set_in_configure_ac)
+ {
+ $conf_dir = "$am_config_aux_dir/";
+ }
+ else
+ {
+ $conf_dir = '$(srcdir)/';
+ }
+ $output_rules .= file_contents ('texi-vers',
+ new Automake::Location,
+ TEXI => $texi,
+ VTI => $vti,
+ STAMPVTI => "${soutdir}stamp-$vti",
+ VTEXI => "$soutdir$vtexi",
+ MDDIR => $conf_dir,
+ DIRSTAMP => $dirstamp);
+ }
+ }
+
+ # Handle location of texinfo.tex.
+ my $need_texi_file = 0;
+ my $texinfodir;
+ if (var ('TEXINFO_TEX'))
+ {
+ # The user defined TEXINFO_TEX so assume he knows what he is
+ # doing.
+ $texinfodir = ('$(srcdir)/'
+ . dirname (variable_value ('TEXINFO_TEX')));
+ }
+ elsif ($config_aux_dir_set_in_configure_ac)
+ {
+ $texinfodir = $am_config_aux_dir;
+ define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
+ $need_texi_file = 2; # so that we require_conf_file later
+ }
+ else
+ {
+ $texinfodir = '$(srcdir)';
+ $need_texi_file = 1;
+ }
+ define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
+
+ push (@dist_targets, 'dist-info');
+
+ if (! option 'no-installinfo')
+ {
+ # Make sure documentation is made and installed first. Use
+ # $(INFO_DEPS), not 'info', because otherwise recursive makes
+ # get run twice during "make all".
+ unshift (@all, '$(INFO_DEPS)');
+ }
+
+ define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
+ define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
+ define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
+ define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
+
+ # This next isn't strictly needed now -- the places that look here
+ # could easily be changed to look in info_TEXINFOS. But this is
+ # probably better, in case noinst_TEXINFOS is ever supported.
+ define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
+
+ # Do some error checking. Note that this file is not required
+ # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
+ # up above.
+ if ($need_texi_file && ! option 'no-texinfo.tex')
+ {
+ if ($need_texi_file > 1)
+ {
+ require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
+ 'texinfo.tex');
+ }
+ else
+ {
+ require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
+ 'texinfo.tex');
+ }
+ }
+
+ return (makefile_wrap ("", "\t ", @mostly_cleans),
+ makefile_wrap ("", "\t ", @texi_cleans),
+ makefile_wrap ("", "\t ", @maint_cleans));
+}
+
+
+sub handle_texinfo ()
+{
+ reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
+ # FIXME: I think this is an obsolete future feature name.
+ reject_var 'html_TEXINFOS', "HTML generation not yet supported";
+
+ my $info_texinfos = var ('info_TEXINFOS');
+ my ($mostlyclean, $clean, $maintclean) = ('', '', '');
+ if ($info_texinfos)
+ {
+ define_verbose_texinfo;
+ ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
+ chomp $mostlyclean;
+ chomp $clean;
+ chomp $maintclean;
+ }
+
+ $output_rules .= file_contents ('texinfos',
+ new Automake::Location,
+ AM_V_DVIPS => verbose_flag('DVIPS'),
+ MOSTLYCLEAN => $mostlyclean,
+ TEXICLEAN => $clean,
+ MAINTCLEAN => $maintclean,
+ 'LOCAL-TEXIS' => !!$info_texinfos,
+ TEXIQUIET => verbose_flag('texinfo'));
+}
+
+
+sub handle_man_pages ()
+{
+ reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
+
+ # Find all the sections in use. We do this by first looking for
+ # "standard" sections, and then looking for any additional
+ # sections used in man_MANS.
+ my (%sections, %notrans_sections, %trans_sections,
+ %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
+ # We handle nodist_ for uniformity. man pages aren't distributed
+ # by default so it isn't actually very important.
+ foreach my $npfx ('', 'notrans_')
+ {
+ foreach my $pfx ('', 'dist_', 'nodist_')
+ {
+ # Add more sections as needed.
+ foreach my $section ('0'..'9', 'n', 'l')
+ {
+ my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
+ if (var ($varname))
+ {
+ $sections{$section} = 1;
+ $varname = '$(' . $varname . ')';
+ if ($npfx eq 'notrans_')
+ {
+ $notrans_sections{$section} = 1;
+ $notrans_sect_vars{$varname} = 1;
+ }
+ else
+ {
+ $trans_sections{$section} = 1;
+ $trans_sect_vars{$varname} = 1;
+ }
+
+ push_dist_common ($varname)
+ if $pfx eq 'dist_';
+ }
+ }
+
+ my $varname = $npfx . $pfx . 'man_MANS';
+ my $var = var ($varname);
+ if ($var)
+ {
+ foreach ($var->value_as_list_recursive)
+ {
+ # A page like 'foo.1c' goes into man1dir.
+ if (/\.([0-9a-z])([a-z]*)$/)
+ {
+ $sections{$1} = 1;
+ if ($npfx eq 'notrans_')
+ {
+ $notrans_sections{$1} = 1;
+ }
+ else
+ {
+ $trans_sections{$1} = 1;
+ }
+ }
+ }
+
+ $varname = '$(' . $varname . ')';
+ if ($npfx eq 'notrans_')
+ {
+ $notrans_vars{$varname} = 1;
+ }
+ else
+ {
+ $trans_vars{$varname} = 1;
+ }
+ push_dist_common ($varname)
+ if $pfx eq 'dist_';
+ }
+ }
+ }
+
+ return unless %sections;
+
+ my @unsorted_deps;
+
+ # Build section independent variables.
+ my $have_notrans = %notrans_vars;
+ my @notrans_list = sort keys %notrans_vars;
+ my $have_trans = %trans_vars;
+ my @trans_list = sort keys %trans_vars;
+
+ # Now for each section, generate an install and uninstall rule.
+ # Sort sections so output is deterministic.
+ foreach my $section (sort keys %sections)
+ {
+ # Build section dependent variables.
+ my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
+ my $trans_mans = $have_trans || exists $trans_sections{$section};
+ my (%notrans_this_sect, %trans_this_sect);
+ my $expr = 'man' . $section . '_MANS';
+ foreach my $varname (keys %notrans_sect_vars)
+ {
+ if ($varname =~ /$expr/)
+ {
+ $notrans_this_sect{$varname} = 1;
+ }
+ }
+ foreach my $varname (keys %trans_sect_vars)
+ {
+ if ($varname =~ /$expr/)
+ {
+ $trans_this_sect{$varname} = 1;
+ }
+ }
+ my @notrans_sect_list = sort keys %notrans_this_sect;
+ my @trans_sect_list = sort keys %trans_this_sect;
+ @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
+ keys %notrans_this_sect, keys %trans_this_sect);
+ my @deps = sort @unsorted_deps;
+ $output_rules .= file_contents ('mans',
+ new Automake::Location,
+ SECTION => $section,
+ DEPS => "@deps",
+ NOTRANS_MANS => $notrans_mans,
+ NOTRANS_SECT_LIST => "@notrans_sect_list",
+ HAVE_NOTRANS => $have_notrans,
+ NOTRANS_LIST => "@notrans_list",
+ TRANS_MANS => $trans_mans,
+ TRANS_SECT_LIST => "@trans_sect_list",
+ HAVE_TRANS => $have_trans,
+ TRANS_LIST => "@trans_list");
+ }
+
+ @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
+ keys %notrans_sect_vars, keys %trans_sect_vars);
+ my @mans = sort @unsorted_deps;
+ $output_vars .= file_contents ('mans-vars',
+ new Automake::Location,
+ MANS => "@mans");
+
+ push (@all, '$(MANS)')
+ unless option 'no-installman';
+}
+
+
+sub handle_data ()
+{
+ am_install_var ('-noextra', '-candist', 'data', 'DATA',
+ 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
+ 'ps', 'sysconf', 'sharedstate', 'localstate',
+ 'pkgdata', 'lisp', 'noinst', 'check');
+}
+
+
+sub handle_tags ()
+{
+ my @config;
+ foreach my $spec (@config_headers)
+ {
+ my ($out, @ins) = split_config_file_spec ($spec);
+ foreach my $in (@ins)
+ {
+ # If the config header source is in this directory,
+ # require it.
+ push @config, basename ($in)
+ if $relative_dir eq dirname ($in);
+ }
+ }
+
+ define_variable ('am__tagged_files',
+ '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
+ . "@config", INTERNAL);
+
+ if (rvar('am__tagged_files')->value_as_list_recursive
+ || var ('ETAGS_ARGS') || var ('SUBDIRS'))
+ {
+ $output_rules .= file_contents ('tags', new Automake::Location);
+ set_seen 'TAGS_DEPENDENCIES';
+ }
+ else
+ {
+ reject_var ('TAGS_DEPENDENCIES',
+ "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
+ . " without\nsources or 'ETAGS_ARGS'");
+ # Every Makefile must define some sort of TAGS rule.
+ # Otherwise, it would be possible for a top-level "make TAGS"
+ # to fail because some subdirectory failed. Ditto ctags and
+ # cscope.
+ $output_rules .=
+ "tags TAGS:\n\n" .
+ "ctags CTAGS:\n\n" .
+ "cscope cscopelist:\n\n";
+ }
+}
+
+
+# user_phony_rule ($NAME)
+# -----------------------
+# Return false if rule $NAME does not exist. Otherwise,
+# declare it as phony, complete its definition (in case it is
+# conditional), and return its Automake::Rule instance.
+sub user_phony_rule
+{
+ my ($name) = @_;
+ my $rule = rule $name;
+ if ($rule)
+ {
+ depend ('.PHONY', $name);
+ # Define $NAME in all condition where it is not already defined,
+ # so that it is always OK to depend on $NAME.
+ for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
+ {
+ Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
+ $c, INTERNAL);
+ $output_rules .= $c->subst_string . "$name:\n";
+ }
+ }
+ return $rule;
+}
+
+
+# Handle 'dist' target.
+sub handle_dist ()
+{
+ # Substitutions for distdir.am
+ my %transform;
+
+ # Define DIST_SUBDIRS. This must always be done, regardless of the
+ # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
+ my $subdirs = var ('SUBDIRS');
+ if ($subdirs)
+ {
+ # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
+ # to all possible directories, and use it. If DIST_SUBDIRS is
+ # defined, just use it.
+
+ # Note that we check DIST_SUBDIRS first on purpose, so that
+ # we don't call has_conditional_contents for now reason.
+ # (In the past one project used so many conditional subdirectories
+ # that calling has_conditional_contents on SUBDIRS caused
+ # automake to grow to 150Mb -- this should not happen with
+ # the current implementation of has_conditional_contents,
+ # but it's more efficient to avoid the call anyway.)
+ if (var ('DIST_SUBDIRS'))
+ {
+ }
+ elsif ($subdirs->has_conditional_contents)
+ {
+ define_pretty_variable
+ ('DIST_SUBDIRS', TRUE, INTERNAL,
+ uniq ($subdirs->value_as_list_recursive));
+ }
+ else
+ {
+ # We always define this because that is what 'distclean'
+ # wants.
+ define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
+ '$(SUBDIRS)');
+ }
+ }
+
+ # The remaining definitions are only required when a dist target is used.
+ return if option 'no-dist';
+
+ # At least one of the archive formats must be enabled.
+ if ($relative_dir eq '.')
+ {
+ my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
+ $archive_defined ||=
+ grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
+ error (option 'no-dist-gzip',
+ "no-dist-gzip specified but no dist-* specified,\n"
+ . "at least one archive format must be enabled")
+ unless $archive_defined;
+ }
+
+ # Look for common files that should be included in distribution.
+ # If the aux dir is set, and it does not have a Makefile.am, then
+ # we check for these files there as well.
+ my $check_aux = 0;
+ if ($relative_dir eq '.'
+ && $config_aux_dir_set_in_configure_ac)
+ {
+ if (! is_make_dir ($config_aux_dir))
+ {
+ $check_aux = 1;
+ }
+ }
+ foreach my $cfile (@common_files)
+ {
+ if (dir_has_case_matching_file ($relative_dir, $cfile)
+ # The file might be absent, but if it can be built it's ok.
+ || rule $cfile)
+ {
+ push_dist_common ($cfile);
+ }
+
+ # Don't use 'elsif' here because a file might meaningfully
+ # appear in both directories.
+ if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
+ {
+ push_dist_common ("$config_aux_dir/$cfile")
+ }
+ }
+
+ # We might copy elements from $configure_dist_common to
+ # %dist_common if we think we need to. If the file appears in our
+ # directory, we would have discovered it already, so we don't
+ # check that. But if the file is in a subdir without a Makefile,
+ # we want to distribute it here if we are doing '.'. Ugly!
+ # Also, in some corner cases, it's possible that the following code
+ # will cause the same file to appear in the $(DIST_COMMON) variables
+ # of two distinct Makefiles; but this is not a problem, since the
+ # 'distdir' target in 'lib/am/distdir.am' can deal with the same
+ # file being distributed multiple times.
+ # See also automake bug#9651.
+ if ($relative_dir eq '.')
+ {
+ foreach my $file (split (' ' , $configure_dist_common))
+ {
+ my $dir = dirname ($file);
+ push_dist_common ($file)
+ if ($dir eq '.' || ! is_make_dir ($dir));
+ }
+ }
+
+ # Files to distributed. Don't use ->value_as_list_recursive
+ # as it recursively expands '$(dist_pkgdata_DATA)' etc.
+ my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
+ @dist_common = uniq (@dist_common);
+ variable_delete 'DIST_COMMON';
+ define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
+
+ # Now that we've processed DIST_COMMON, disallow further attempts
+ # to set it.
+ $handle_dist_run = 1;
+
+ $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
+ $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
+
+ # If the target 'dist-hook' exists, make sure it is run. This
+ # allows users to do random weird things to the distribution
+ # before it is packaged up.
+ push (@dist_targets, 'dist-hook')
+ if user_phony_rule 'dist-hook';
+ $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
+
+ my $flm = option ('filename-length-max');
+ my $filename_filter = $flm ? '.' x $flm->[1] : '';
+
+ $output_rules .= file_contents ('distdir',
+ new Automake::Location,
+ %transform,
+ FILENAME_FILTER => $filename_filter);
+}
+
+
+# check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
+# -------------------------------------------------------
+# Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
+# name. Use $WHERE as a location in the diagnostic, if any.
+sub check_directory
+{
+ my ($dir, $where, $reldir) = @_;
+ $reldir = '.' unless defined $reldir;
+
+ error $where, "required directory $reldir/$dir does not exist"
+ unless -d "$reldir/$dir";
+
+ # If an 'obj/' directory exists, BSD make will enter it before
+ # reading 'Makefile'. Hence the 'Makefile' in the current directory
+ # will not be read.
+ #
+ # % cat Makefile
+ # all:
+ # echo Hello
+ # % cat obj/Makefile
+ # all:
+ # echo World
+ # % make # GNU make
+ # echo Hello
+ # Hello
+ # % pmake # BSD make
+ # echo World
+ # World
+ msg ('portability', $where,
+ "naming a subdirectory 'obj' causes troubles with BSD make")
+ if $dir eq 'obj';
+
+ # 'aux' is probably the most important of the following forbidden name,
+ # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
+ msg ('portability', $where,
+ "name '$dir' is reserved on W32 and DOS platforms")
+ if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
+}
+
+# check_directories_in_var ($VARIABLE)
+# ------------------------------------
+# Recursively check all items in variables $VARIABLE as directories
+sub check_directories_in_var
+{
+ my ($var) = @_;
+ $var->traverse_recursively
+ (sub
+ {
+ my ($var, $val, $cond, $full_cond) = @_;
+ check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
+ return ();
+ },
+ undef,
+ skip_ac_subst => 1);
+}
+
+
+sub handle_subdirs ()
+{
+ my $subdirs = var ('SUBDIRS');
+ return
+ unless $subdirs;
+
+ check_directories_in_var $subdirs;
+
+ my $dsubdirs = var ('DIST_SUBDIRS');
+ check_directories_in_var $dsubdirs
+ if $dsubdirs;
+
+ $output_rules .= file_contents ('subdirs', new Automake::Location);
+ rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
+}
+
+
+# ($REGEN, @DEPENDENCIES)
+# scan_aclocal_m4
+# ---------------
+# If aclocal.m4 creation is automated, return the list of its dependencies.
+sub scan_aclocal_m4 ()
+{
+ my $regen_aclocal = 0;
+
+ set_seen 'CONFIG_STATUS_DEPENDENCIES';
+ set_seen 'CONFIGURE_DEPENDENCIES';
+
+ if (-f 'aclocal.m4')
+ {
+ define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
+
+ my $aclocal = new Automake::XFile "< aclocal.m4";
+ my $line = $aclocal->getline;
+ $regen_aclocal = $line =~ 'generated automatically by aclocal';
+ }
+
+ my @ac_deps = ();
+
+ if (set_seen ('ACLOCAL_M4_SOURCES'))
+ {
+ push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
+ msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
+ "'ACLOCAL_M4_SOURCES' is obsolete.\n"
+ . "It should be safe to simply remove it");
+ }
+
+ # Note that it might be possible that aclocal.m4 doesn't exist but
+ # should be auto-generated. This case probably isn't very
+ # important.
+
+ return ($regen_aclocal, @ac_deps);
+}
+
+
+# Helper function for 'substitute_ac_subst_variables'.
+sub substitute_ac_subst_variables_worker
+{
+ my ($token) = @_;
+ return "\@$token\@" if var $token;
+ return "\${$token\}";
+}
+
+# substitute_ac_subst_variables ($TEXT)
+# -------------------------------------
+# Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
+# variable.
+sub substitute_ac_subst_variables
+{
+ my ($text) = @_;
+ $text =~ s/\${([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
+ return $text;
+}
+
+# @DEPENDENCIES
+# prepend_srcdir (@INPUTS)
+# ------------------------
+# Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
+# if an input file has a directory part the same as the current
+# directory, then the directory part is simply replaced by $(srcdir).
+# But if the directory part is different, then $(top_srcdir) is
+# prepended.
+sub prepend_srcdir
+{
+ my (@inputs) = @_;
+ my @newinputs;
+
+ foreach my $single (@inputs)
+ {
+ if (dirname ($single) eq $relative_dir)
+ {
+ push (@newinputs, '$(srcdir)/' . basename ($single));
+ }
+ else
+ {
+ push (@newinputs, '$(top_srcdir)/' . $single);
+ }
+ }
+ return @newinputs;
+}
+
+# @DEPENDENCIES
+# rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
+# ---------------------------------------------------
+# Compute a list of dependencies appropriate for the rebuild
+# rule of
+# AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
+# Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
+sub rewrite_inputs_into_dependencies
+{
+ my ($file, @inputs) = @_;
+ my @res = ();
+
+ for my $i (@inputs)
+ {
+ # We cannot create dependencies on shell variables.
+ next if (substitute_ac_subst_variables $i) =~ /\$/;
+
+ if (exists $ac_config_files_location{$i} && $i ne $file)
+ {
+ my $di = dirname $i;
+ if ($di eq $relative_dir)
+ {
+ $i = basename $i;
+ }
+ # In the top-level Makefile we do not use $(top_builddir), because
+ # we are already there, and since the targets are built without
+ # a $(top_builddir), it helps BSD Make to match them with
+ # dependencies.
+ elsif ($relative_dir ne '.')
+ {
+ $i = '$(top_builddir)/' . $i;
+ }
+ }
+ else
+ {
+ msg ('error', $ac_config_files_location{$file},
+ "required file '$i' not found")
+ unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
+ ($i) = prepend_srcdir ($i);
+ push_dist_common ($i);
+ }
+ push @res, $i;
+ }
+ return @res;
+}
+
+
+
+# handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
+# -----------------------------------------------------------------
+# Handle remaking and configure stuff.
+# We need the name of the input file, to do proper remaking rules.
+sub handle_configure
+{
+ my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
+
+ prog_error 'empty @inputs'
+ unless @inputs;
+
+ my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
+ $makefile_in);
+ my $rel_makefile = basename $makefile;
+
+ my $colon_infile = ':' . join (':', @inputs);
+ $colon_infile = '' if $colon_infile eq ":$makefile.in";
+ my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
+ my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
+ define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
+ @configure_deps, @aclocal_m4_deps,
+ '$(top_srcdir)/' . $configure_ac);
+ my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
+ push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
+ define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
+ @configuredeps);
+
+ my $automake_options = '--' . $strictness_name .
+ (global_option 'no-dependencies' ? ' --ignore-deps' : '');
+
+ $output_rules .= file_contents
+ ('configure',
+ new Automake::Location,
+ MAKEFILE => $rel_makefile,
+ 'MAKEFILE-DEPS' => "@rewritten",
+ 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
+ 'MAKEFILE-IN' => $rel_makefile_in,
+ 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
+ 'MAKEFILE-IN-DEPS' => "@include_stack",
+ 'MAKEFILE-AM' => $rel_makefile_am,
+ 'AUTOMAKE-OPTIONS' => $automake_options,
+ 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
+ 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
+ VERBOSE => verbose_flag ('GEN'));
+
+ if ($relative_dir eq '.')
+ {
+ push_dist_common ('acconfig.h')
+ if -f 'acconfig.h';
+ }
+
+ # If we have a configure header, require it.
+ my $hdr_index = 0;
+ my @distclean_config;
+ foreach my $spec (@config_headers)
+ {
+ $hdr_index += 1;
+ # $CONFIG_H_PATH: config.h from top level.
+ my ($config_h_path, @ins) = split_config_file_spec ($spec);
+ my $config_h_dir = dirname ($config_h_path);
+
+ # If the header is in the current directory we want to build
+ # the header here. Otherwise, if we're at the topmost
+ # directory and the header's directory doesn't have a
+ # Makefile, then we also want to build the header.
+ if ($relative_dir eq $config_h_dir
+ || ($relative_dir eq '.' && ! is_make_dir ($config_h_dir)))
+ {
+ my ($cn_sans_dir, $stamp_dir);
+ if ($relative_dir eq $config_h_dir)
+ {
+ $cn_sans_dir = basename ($config_h_path);
+ $stamp_dir = '';
+ }
+ else
+ {
+ $cn_sans_dir = $config_h_path;
+ if ($config_h_dir eq '.')
+ {
+ $stamp_dir = '';
+ }
+ else
+ {
+ $stamp_dir = $config_h_dir . '/';
+ }
+ }
+
+ # This will also distribute all inputs.
+ @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
+
+ # Cannot define rebuild rules for filenames with shell variables.
+ next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
+
+ # Header defined in this directory.
+ my @files;
+ if (-f $config_h_path . '.top')
+ {
+ push (@files, "$cn_sans_dir.top");
+ }
+ if (-f $config_h_path . '.bot')
+ {
+ push (@files, "$cn_sans_dir.bot");
+ }
+
+ push_dist_common (@files);
+
+ # For now, acconfig.h can only appear in the top srcdir.
+ if (-f 'acconfig.h')
+ {
+ push (@files, '$(top_srcdir)/acconfig.h');
+ }
+
+ my $stamp = "${stamp_dir}stamp-h${hdr_index}";
+ $output_rules .=
+ file_contents ('remake-hdr',
+ new Automake::Location,
+ FILES => "@files",
+ 'FIRST-HDR' => ($hdr_index == 1),
+ CONFIG_H => $cn_sans_dir,
+ CONFIG_HIN => $ins[0],
+ CONFIG_H_DEPS => "@ins",
+ CONFIG_H_PATH => $config_h_path,
+ STAMP => "$stamp");
+
+ push @distclean_config, $cn_sans_dir, $stamp;
+ }
+ }
+
+ $output_rules .= file_contents ('clean-hdr',
+ new Automake::Location,
+ FILES => "@distclean_config")
+ if @distclean_config;
+
+ # Distribute and define mkinstalldirs only if it is already present
+ # in the package, for backward compatibility (some people may still
+ # use $(mkinstalldirs)).
+ # TODO: start warning about this in Automake 1.14, and have
+ # TODO: Automake 2.0 drop it (and the mkinstalldirs script
+ # TODO: as well).
+ my $mkidpath = "$config_aux_dir/mkinstalldirs";
+ if (-f $mkidpath)
+ {
+ # Use require_file so that any existing script gets updated
+ # by --force-missing.
+ require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
+ define_variable ('mkinstalldirs',
+ "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
+ }
+ else
+ {
+ # Use $(install_sh), not $(MKDIR_P) because the latter requires
+ # at least one argument, and $(mkinstalldirs) used to work
+ # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
+ define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
+ }
+
+ reject_var ('CONFIG_HEADER',
+ "'CONFIG_HEADER' is an anachronism; now determined "
+ . "automatically\nfrom '$configure_ac'");
+
+ my @config_h;
+ foreach my $spec (@config_headers)
+ {
+ my ($out, @ins) = split_config_file_spec ($spec);
+ # Generate CONFIG_HEADER define.
+ if ($relative_dir eq dirname ($out))
+ {
+ push @config_h, basename ($out);
+ }
+ else
+ {
+ push @config_h, "\$(top_builddir)/$out";
+ }
+ }
+ define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
+ if @config_h;
+
+ # Now look for other files in this directory which must be remade
+ # by config.status, and generate rules for them.
+ my @actual_other_files = ();
+ # These get cleaned only in a VPATH build.
+ my @actual_other_vpath_files = ();
+ foreach my $lfile (@other_input_files)
+ {
+ my $file;
+ my @inputs;
+ if ($lfile =~ /^([^:]*):(.*)$/)
+ {
+ # This is the ":" syntax of AC_OUTPUT.
+ $file = $1;
+ @inputs = split (':', $2);
+ }
+ else
+ {
+ # Normal usage.
+ $file = $lfile;
+ @inputs = $file . '.in';
+ }
+
+ # Automake files should not be stored in here, but in %MAKE_LIST.
+ prog_error ("$lfile in \@other_input_files\n"
+ . "\@other_input_files = (@other_input_files)")
+ if -f $file . '.am';
+
+ my $local = basename ($file);
+
+ # We skip files that aren't in this directory. However, if
+ # the file's directory does not have a Makefile, and we are
+ # currently doing '.', then we create a rule to rebuild the
+ # file in the subdir.
+ my $fd = dirname ($file);
+ if ($fd ne $relative_dir)
+ {
+ if ($relative_dir eq '.' && ! is_make_dir ($fd))
+ {
+ $local = $file;
+ }
+ else
+ {
+ next;
+ }
+ }
+
+ my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
+
+ # Cannot output rules for shell variables.
+ next if (substitute_ac_subst_variables $local) =~ /\$/;
+
+ my $condstr = '';
+ my $cond = $ac_config_files_condition{$lfile};
+ if (defined $cond)
+ {
+ $condstr = $cond->subst_string;
+ Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
+ $ac_config_files_location{$file});
+ }
+ $output_rules .= ($condstr . $local . ': '
+ . '$(top_builddir)/config.status '
+ . "@rewritten_inputs\n"
+ . $condstr . "\t"
+ . 'cd $(top_builddir) && '
+ . '$(SHELL) ./config.status '
+ . ($relative_dir eq '.' ? '' : '$(subdir)/')
+ . '$@'
+ . "\n");
+ push (@actual_other_files, $local);
+ }
+
+ # For links we should clean destinations and distribute sources.
+ foreach my $spec (@config_links)
+ {
+ my ($link, $file) = split /:/, $spec;
+ # Some people do AC_CONFIG_LINKS($computed). We only handle
+ # the DEST:SRC form.
+ next unless $file;
+ my $where = $ac_config_files_location{$link};
+
+ # Skip destinations that contain shell variables.
+ if ((substitute_ac_subst_variables $link) !~ /\$/)
+ {
+ # We skip links that aren't in this directory. However, if
+ # the link's directory does not have a Makefile, and we are
+ # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
+ # in '.'s Makefile.in.
+ my $local = basename ($link);
+ my $fd = dirname ($link);
+ if ($fd ne $relative_dir)
+ {
+ if ($relative_dir eq '.' && ! is_make_dir ($fd))
+ {
+ $local = $link;
+ }
+ else
+ {
+ $local = undef;
+ }
+ }
+ if ($file ne $link)
+ {
+ push @actual_other_files, $local if $local;
+ }
+ else
+ {
+ push @actual_other_vpath_files, $local if $local;
+ }
+ }
+
+ # Do not process sources that contain shell variables.
+ if ((substitute_ac_subst_variables $file) !~ /\$/)
+ {
+ my $fd = dirname ($file);
+
+ # We distribute files that are in this directory.
+ # At the top-level ('.') we also distribute files whose
+ # directory does not have a Makefile.
+ if (($fd eq $relative_dir)
+ || ($relative_dir eq '.' && ! is_make_dir ($fd)))
+ {
+ # The following will distribute $file as a side-effect when
+ # it is appropriate (i.e., when $file is not already an output).
+ # We do not need the result, just the side-effect.
+ rewrite_inputs_into_dependencies ($link, $file);
+ }
+ }
+ }
+
+ # These files get removed by "make distclean".
+ define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
+ @actual_other_files);
+ define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
+ @actual_other_vpath_files);
+}
+
+sub handle_headers ()
+{
+ my @r = am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
+ 'oldinclude', 'pkginclude',
+ 'noinst', 'check');
+ foreach (@r)
+ {
+ next unless $_->[1] =~ /\..*$/;
+ saw_extension ($&);
+ }
+}
+
+sub handle_gettext ()
+{
+ return if ! $seen_gettext || $relative_dir ne '.';
+
+ my $subdirs = var 'SUBDIRS';
+
+ if (! $subdirs)
+ {
+ err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
+ return;
+ }
+
+ # Perform some sanity checks to help users get the right setup.
+ # We disable these tests when po/ doesn't exist in order not to disallow
+ # unusual gettext setups.
+ #
+ # Bruno Haible:
+ # | The idea is:
+ # |
+ # | 1) If a package doesn't have a directory po/ at top level, it
+ # | will likely have multiple po/ directories in subpackages.
+ # |
+ # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
+ # | is used without 'external'. It is also useful to warn for the
+ # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
+ # | warnings apply only to the usual layout of packages, therefore
+ # | they should both be disabled if no po/ directory is found at
+ # | top level.
+
+ if (-d 'po')
+ {
+ my @subdirs = $subdirs->value_as_list_recursive;
+
+ msg_var ('syntax', $subdirs,
+ "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
+ if ! grep ($_ eq 'po', @subdirs);
+
+ # intl/ is not required when AM_GNU_GETTEXT is called with the
+ # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
+ msg_var ('syntax', $subdirs,
+ "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
+ if (! ($seen_gettext_external && ! $seen_gettext_intl)
+ && ! grep ($_ eq 'intl', @subdirs));
+
+ # intl/ should not be used with AM_GNU_GETTEXT([external]), except
+ # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
+ msg_var ('syntax', $subdirs,
+ "'intl' should not be in SUBDIRS when "
+ . "AM_GNU_GETTEXT([external]) is used")
+ if ($seen_gettext_external && ! $seen_gettext_intl
+ && grep ($_ eq 'intl', @subdirs));
+ }
+
+ require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
+}
+
+# Emit makefile footer.
+sub handle_footer ()
+{
+ reject_rule ('.SUFFIXES',
+ "use variable 'SUFFIXES', not target '.SUFFIXES'");
+
+ # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
+ # before .SUFFIXES. So we make sure that .SUFFIXES appears before
+ # anything else, by sticking it right after the default: target.
+ $output_header .= ".SUFFIXES:\n";
+ my $suffixes = var 'SUFFIXES';
+ my @suffixes = Automake::Rule::suffixes;
+ if (@suffixes || $suffixes)
+ {
+ # Make sure SUFFIXES has unique elements. Sort them to ensure
+ # the output remains consistent. However, $(SUFFIXES) is
+ # always at the start of the list, unsorted. This is done
+ # because make will choose rules depending on the ordering of
+ # suffixes, and this lets the user have some control. Push
+ # actual suffixes, and not $(SUFFIXES). Some versions of make
+ # do not like variable substitutions on the .SUFFIXES line.
+ my @user_suffixes = ($suffixes
+ ? $suffixes->value_as_list_recursive : ());
+
+ my %suffixes = map { $_ => 1 } @suffixes;
+ delete @suffixes{@user_suffixes};
+
+ $output_header .= (".SUFFIXES: "
+ . join (' ', @user_suffixes, sort keys %suffixes)
+ . "\n");
+ }
+
+ $output_trailer .= file_contents ('footer', new Automake::Location);
+}
+
+
+# Generate 'make install' rules.
+sub handle_install ()
+{
+ $output_rules .= file_contents
+ ('install',
+ new Automake::Location,
+ maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
+ ? (" \$(BUILT_SOURCES)\n"
+ . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
+ : ''),
+ 'installdirs-local' => (user_phony_rule ('installdirs-local')
+ ? ' installdirs-local' : ''),
+ am__installdirs => variable_value ('am__installdirs') || '');
+}
+
+
+# handle_all ($MAKEFILE)
+#-----------------------
+# Deal with 'all' and 'all-am'.
+sub handle_all
+{
+ my ($makefile) = @_;
+
+ # Output 'all-am'.
+
+ # Put this at the beginning for the sake of non-GNU makes. This
+ # is still wrong if these makes can run parallel jobs. But it is
+ # right enough.
+ unshift (@all, basename ($makefile));
+
+ foreach my $spec (@config_headers)
+ {
+ my ($out, @ins) = split_config_file_spec ($spec);
+ push (@all, basename ($out))
+ if dirname ($out) eq $relative_dir;
+ }
+
+ # Install 'all' hooks.
+ push (@all, "all-local")
+ if user_phony_rule "all-local";
+
+ pretty_print_rule ("all-am:", "\t\t", @all);
+ depend ('.PHONY', 'all-am', 'all');
+
+
+ # Output 'all'.
+
+ my @local_headers = ();
+ push @local_headers, '$(BUILT_SOURCES)'
+ if var ('BUILT_SOURCES');
+ foreach my $spec (@config_headers)
+ {
+ my ($out, @ins) = split_config_file_spec ($spec);
+ push @local_headers, basename ($out)
+ if dirname ($out) eq $relative_dir;
+ }
+
+ if (@local_headers)
+ {
+ # We need to make sure config.h is built before we recurse.
+ # We also want to make sure that built sources are built
+ # before any ordinary 'all' targets are run. We can't do this
+ # by changing the order of dependencies to the "all" because
+ # that breaks when using parallel makes. Instead we handle
+ # things explicitly.
+ $output_all .= ("all: @local_headers"
+ . "\n\t"
+ . '$(MAKE) $(AM_MAKEFLAGS) '
+ . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
+ . "\n\n");
+ depend ('.MAKE', 'all');
+ }
+ else
+ {
+ $output_all .= "all: " . (var ('SUBDIRS')
+ ? 'all-recursive' : 'all-am') . "\n\n";
+ }
+}
+
+# Generate helper targets for user-defined recursive targets, where needed.
+sub handle_user_recursion ()
+{
+ return unless @extra_recursive_targets;
+
+ define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
+ map { "$_-recursive" } @extra_recursive_targets);
+ my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
+ foreach my $target (@extra_recursive_targets)
+ {
+ # This allows the default target's rules to be overridden in
+ # Makefile.am.
+ user_phony_rule ($target);
+ depend ("$target", "$target-$aux");
+ depend ("$target-am", "$target-local");
+ # Every user-defined recursive target 'foo' *must* have a valid
+ # associated 'foo-local' rule; we define it as an empty rule by
+ # default, so that the user can transparently extend it in his
+ # own Makefile.am.
+ pretty_print_rule ("$target-local:", '', '');
+ # $target-recursive might as well be undefined, so do not add
+ # it here; it's taken care of in subdirs.am anyway.
+ depend (".PHONY", "$target-am", "$target-local");
+ }
+}
+
+
+# Handle check merge target specially.
+sub do_check_merge_target ()
+{
+ # Include user-defined local form of target.
+ push @check_tests, 'check-local'
+ if user_phony_rule 'check-local';
+
+ # The check target must depend on the local equivalent of
+ # 'all', to ensure all the primary targets are built. Then it
+ # must build the local check rules.
+ $output_rules .= "check-am: all-am\n";
+ if (@check)
+ {
+ pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
+ depend ('.MAKE', 'check-am');
+ }
+
+ if (@check_tests)
+ {
+ pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
+ @check_tests);
+ depend ('.MAKE', 'check-am');
+ }
+
+ depend '.PHONY', 'check', 'check-am';
+ # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
+ $output_rules .= ("check: "
+ . (var ('BUILT_SOURCES')
+ ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
+ : '')
+ . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
+ . "\n");
+ depend ('.MAKE', 'check')
+ if var ('BUILT_SOURCES');
+}
+
+# Handle all 'clean' targets.
+sub handle_clean
+{
+ my ($makefile) = @_;
+
+ # Clean the files listed in user variables if they exist.
+ $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
+ if var ('MOSTLYCLEANFILES');
+ $clean_files{'$(CLEANFILES)'} = CLEAN
+ if var ('CLEANFILES');
+ $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
+ if var ('DISTCLEANFILES');
+ $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
+ if var ('MAINTAINERCLEANFILES');
+
+ # Built sources are automatically removed by maintainer-clean.
+ $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
+ if var ('BUILT_SOURCES');
+
+ # Compute a list of "rm"s to run for each target.
+ my %rms = (MOSTLY_CLEAN, [],
+ CLEAN, [],
+ DIST_CLEAN, [],
+ MAINTAINER_CLEAN, []);
+
+ foreach my $file (keys %clean_files)
+ {
+ my $when = $clean_files{$file};
+ prog_error 'invalid entry in %clean_files'
+ unless exists $rms{$when};
+
+ my $rm = "rm -f $file";
+ # If file is a variable, make sure when don't call 'rm -f' without args.
+ $rm ="test -z \"$file\" || $rm"
+ if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
+
+ push @{$rms{$when}}, "\t-$rm\n";
+ }
+
+ $output_rules .= file_contents
+ ('clean',
+ new Automake::Location,
+ MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
+ CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
+ DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
+ MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
+ MAKEFILE => basename $makefile,
+ );
+}
+
+
+# Subroutine for handle_factored_dependencies() to let '.PHONY' and
+# other '.TARGETS' be last. This is meant to be used as a comparison
+# subroutine passed to the sort built-int.
+sub target_cmp
+{
+ return 0 if $a eq $b;
+
+ my $a1 = substr ($a, 0, 1);
+ my $b1 = substr ($b, 0, 1);
+ if ($a1 ne $b1)
+ {
+ return -1 if $b1 eq '.';
+ return 1 if $a1 eq '.';
+ }
+ return $a cmp $b;
+}
+
+
+# Handle everything related to gathered targets.
+sub handle_factored_dependencies ()
+{
+ # Reject bad hooks.
+ foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
+ 'uninstall-exec-local', 'uninstall-exec-hook',
+ 'uninstall-dvi-local',
+ 'uninstall-html-local',
+ 'uninstall-info-local',
+ 'uninstall-pdf-local',
+ 'uninstall-ps-local')
+ {
+ my $x = $utarg;
+ $x =~ s/-.*-/-/;
+ reject_rule ($utarg, "use '$x', not '$utarg'");
+ }
+
+ reject_rule ('install-local',
+ "use 'install-data-local' or 'install-exec-local', "
+ . "not 'install-local'");
+
+ reject_rule ('install-hook',
+ "use 'install-data-hook' or 'install-exec-hook', "
+ . "not 'install-hook'");
+
+ # Install the -local hooks.
+ foreach (keys %dependencies)
+ {
+ # Hooks are installed on the -am targets.
+ s/-am$// or next;
+ depend ("$_-am", "$_-local")
+ if user_phony_rule "$_-local";
+ }
+
+ # Install the -hook hooks.
+ # FIXME: Why not be as liberal as we are with -local hooks?
+ foreach ('install-exec', 'install-data', 'uninstall')
+ {
+ if (user_phony_rule "$_-hook")
+ {
+ depend ('.MAKE', "$_-am");
+ register_action("$_-am",
+ ("\t\@\$(NORMAL_INSTALL)\n"
+ . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
+ }
+ }
+
+ # All the required targets are phony.
+ depend ('.PHONY', keys %required_targets);
+
+ # Actually output gathered targets.
+ foreach (sort target_cmp keys %dependencies)
+ {
+ # If there is nothing about this guy, skip it.
+ next
+ unless (@{$dependencies{$_}}
+ || $actions{$_}
+ || $required_targets{$_});
+
+ # Define gathered targets in undefined conditions.
+ # FIXME: Right now we must handle .PHONY as an exception,
+ # because people write things like
+ # .PHONY: myphonytarget
+ # to append dependencies. This would not work if Automake
+ # refrained from defining its own .PHONY target as it does
+ # with other overridden targets.
+ # Likewise for '.MAKE'.
+ my @undefined_conds = (TRUE,);
+ if ($_ ne '.PHONY' && $_ ne '.MAKE')
+ {
+ @undefined_conds =
+ Automake::Rule::define ($_, 'internal',
+ RULE_AUTOMAKE, TRUE, INTERNAL);
+ }
+ my @uniq_deps = uniq (sort @{$dependencies{$_}});
+ foreach my $cond (@undefined_conds)
+ {
+ my $condstr = $cond->subst_string;
+ pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
+ $output_rules .= $actions{$_} if defined $actions{$_};
+ $output_rules .= "\n";
+ }
+ }
+}
+
+
+sub handle_tests_dejagnu ()
+{
+ push (@check_tests, 'check-DEJAGNU');
+ $output_rules .= file_contents ('dejagnu', new Automake::Location);
+}
+
+# handle_per_suffix_test ($TEST_SUFFIX, [%TRANSFORM])
+#----------------------------------------------------
+sub handle_per_suffix_test
+{
+ my ($test_suffix, %transform) = @_;
+ my ($pfx, $generic, $am_exeext);
+ if ($test_suffix eq '')
+ {
+ $pfx = '';
+ $generic = 0;
+ $am_exeext = 'FALSE';
+ }
+ else
+ {
+ prog_error ("test suffix '$test_suffix' lacks leading dot")
+ unless $test_suffix =~ m/^\.(.*)/;
+ $pfx = uc ($1) . '_';
+ $generic = 1;
+ $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
+ : 'FALSE';
+ }
+ # The "test driver" program, deputed to handle tests protocol used by
+ # test scripts. By default, it's assumed that no protocol is used, so
+ # we fall back to the old behaviour, implemented by the 'test-driver'
+ # auxiliary script.
+ if (! var "${pfx}LOG_DRIVER")
+ {
+ require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
+ define_variable ("${pfx}LOG_DRIVER",
+ "\$(SHELL) $am_config_aux_dir/test-driver",
+ INTERNAL);
+ }
+ my $driver = '$(' . $pfx . 'LOG_DRIVER)';
+ my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
+ . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
+ my $compile = "${pfx}LOG_COMPILE";
+ define_variable ($compile,
+ '$(' . $pfx . 'LOG_COMPILER)'
+ . ' $(AM_' . $pfx . 'LOG_FLAGS)'
+ . ' $(' . $pfx . 'LOG_FLAGS)',
+ INTERNAL);
+ $output_rules .= file_contents ('check2', new Automake::Location,
+ GENERIC => $generic,
+ DRIVER => $driver,
+ DRIVER_FLAGS => $driver_flags,
+ COMPILE => '$(' . $compile . ')',
+ EXT => $test_suffix,
+ am__EXEEXT => $am_exeext,
+ %transform);
+}
+
+# is_valid_test_extension ($EXT)
+# ------------------------------
+# Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
+# otherwise.
+sub is_valid_test_extension
+{
+ my $ext = shift;
+ return 1
+ if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
+ return 1
+ if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
+ return 0;
+}
+
+
+sub handle_tests ()
+{
+ if (option 'dejagnu')
+ {
+ handle_tests_dejagnu;
+ }
+ else
+ {
+ foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
+ {
+ reject_var ($c, "'$c' defined but 'dejagnu' not in "
+ . "'AUTOMAKE_OPTIONS'");
+ }
+ }
+
+ if (var ('TESTS'))
+ {
+ push (@check_tests, 'check-TESTS');
+ my $check_deps = "@check";
+ $output_rules .= file_contents ('check', new Automake::Location,
+ SERIAL_TESTS => !! option 'serial-tests',
+ CHECK_DEPS => $check_deps);
+
+ # Tests that are known programs should have $(EXEEXT) appended.
+ # For matching purposes, we need to adjust XFAIL_TESTS as well.
+ append_exeext { exists $known_programs{$_[0]} } 'TESTS';
+ append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
+ if (var ('XFAIL_TESTS'));
+
+ if (! option 'serial-tests')
+ {
+ define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
+ my $suff = '.test';
+ my $at_exeext = '';
+ my $handle_exeext = exists $configure_vars{'EXEEXT'};
+ if ($handle_exeext)
+ {
+ $at_exeext = subst ('EXEEXT');
+ $suff = $at_exeext . ' ' . $suff;
+ }
+ if (! var 'TEST_EXTENSIONS')
+ {
+ define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
+ }
+ my $var = var 'TEST_EXTENSIONS';
+ # Currently, we are not able to deal with conditional contents
+ # in TEST_EXTENSIONS.
+ if ($var->has_conditional_contents)
+ {
+ msg_var 'unsupported', $var,
+ "'TEST_EXTENSIONS' cannot have conditional contents";
+ }
+ my @test_suffixes = $var->value_as_list_recursive;
+ if ((my @invalid_test_suffixes =
+ grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
+ {
+ error $var->rdef (TRUE)->location,
+ "invalid test extensions: @invalid_test_suffixes";
+ }
+ @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
+ if ($handle_exeext)
+ {
+ unshift (@test_suffixes, $at_exeext)
+ unless $test_suffixes[0] eq $at_exeext;
+ }
+ unshift (@test_suffixes, '');
+
+ transform_variable_recursively
+ ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
+ sub {
+ my ($subvar, $val, $cond, $full_cond) = @_;
+ my $obj = $val;
+ return $obj
+ if $val =~ /^\@.*\@$/;
+ $obj =~ s/\$\(EXEEXT\)$//o;
+
+ if ($val =~ /(\$\((top_)?srcdir\))\//o)
+ {
+ msg ('error', $subvar->rdef ($cond)->location,
+ "using '$1' in TESTS is currently broken: '$val'");
+ }
+
+ foreach my $test_suffix (@test_suffixes)
+ {
+ next
+ if $test_suffix eq $at_exeext || $test_suffix eq '';
+ return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
+ if substr ($obj, - length ($test_suffix)) eq $test_suffix;
+ }
+ my $base = $obj;
+ $obj .= '.log';
+ handle_per_suffix_test ('',
+ OBJ => $obj,
+ BASE => $base,
+ SOURCE => $val);
+ return $obj;
+ });
+
+ my $nhelper=1;
+ my $prev = 'TESTS';
+ my $post = '';
+ my $last_suffix = $test_suffixes[$#test_suffixes];
+ my $cur = '';
+ foreach my $test_suffix (@test_suffixes)
+ {
+ if ($test_suffix eq $last_suffix)
+ {
+ $cur = 'TEST_LOGS';
+ }
+ else
+ {
+ $cur = 'am__test_logs' . $nhelper;
+ }
+ define_variable ($cur,
+ '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
+ $post = '.log';
+ $prev = $cur;
+ $nhelper++;
+ if ($test_suffix ne $at_exeext && $test_suffix ne '')
+ {
+ handle_per_suffix_test ($test_suffix,
+ OBJ => '',
+ BASE => '$*',
+ SOURCE => '$<');
+ }
+ }
+ $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
+ $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
+ $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
+ }
+ }
+}
+
+sub handle_emacs_lisp ()
+{
+ my @elfiles = am_install_var ('-candist', 'lisp', 'LISP',
+ 'lisp', 'noinst');
+
+ return if ! @elfiles;
+
+ define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
+ map { $_->[1] } @elfiles);
+ define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
+ '$(am__ELFILES:.el=.elc)');
+ # This one can be overridden by users.
+ define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
+
+ push @all, '$(ELCFILES)';
+
+ require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
+ 'EMACS', 'lispdir');
+}
+
+sub handle_python ()
+{
+ my @pyfiles = am_install_var ('-defaultdist', 'python', 'PYTHON',
+ 'noinst');
+ return if ! @pyfiles;
+
+ require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
+ require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
+ define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
+}
+
+sub handle_java ()
+{
+ my @sourcelist = am_install_var ('-candist',
+ 'java', 'JAVA',
+ 'noinst', 'check');
+ return if ! @sourcelist;
+
+ my @prefixes = am_primary_prefixes ('JAVA', 1,
+ 'noinst', 'check');
+
+ my $dir;
+ my @java_sources = ();
+ foreach my $prefix (@prefixes)
+ {
+ (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
+
+ next
+ if $curs eq 'EXTRA';
+
+ push @java_sources, '$(' . $prefix . '_JAVA' . ')';
+
+ if (defined $dir)
+ {
+ err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
+ unless $curs eq $dir;
+ }
+
+ $dir = $curs;
+ }
+
+ define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
+ "@java_sources");
+
+ if ($dir eq 'check')
+ {
+ push (@check, "class$dir.stamp");
+ }
+ else
+ {
+ push (@all, "class$dir.stamp");
+ }
+}
+
+
+sub handle_minor_options ()
+{
+ if (option 'readme-alpha')
+ {
+ if ($relative_dir eq '.')
+ {
+ if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
+ {
+ msg ('error-gnits', $package_version_location,
+ "version '$package_version' doesn't follow " .
+ "Gnits standards");
+ }
+ if (defined $1 && -f 'README-alpha')
+ {
+ # This means we have an alpha release. See
+ # GNITS_VERSION_PATTERN for details.
+ push_dist_common ('README-alpha');
+ }
+ }
+ }
+}
+
+################################################################
+
+# ($OUTPUT, @INPUTS)
+# split_config_file_spec ($SPEC)
+# ------------------------------
+# Decode the Autoconf syntax for config files (files, headers, links
+# etc.).
+sub split_config_file_spec
+{
+ my ($spec) = @_;
+ my ($output, @inputs) = split (/:/, $spec);
+
+ push @inputs, "$output.in"
+ unless @inputs;
+
+ return ($output, @inputs);
+}
+
+# $input
+# locate_am (@POSSIBLE_SOURCES)
+# -----------------------------
+# AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
+# This functions returns the first *.in file for which a *.am exists.
+# It returns undef otherwise.
+sub locate_am
+{
+ my (@rest) = @_;
+ my $input;
+ foreach my $file (@rest)
+ {
+ if (($file =~ /^(.*)\.in$/) && -f "$1.am")
+ {
+ $input = $file;
+ last;
+ }
+ }
+ return $input;
+}
+
+my %make_list;
+
+# scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
+# --------------------------------------------------
+# Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
+# (or AC_OUTPUT).
+sub scan_autoconf_config_files
+{
+ my ($where, $config_files) = @_;
+
+ # Look at potential Makefile.am's.
+ foreach (split ' ', $config_files)
+ {
+ # Must skip empty string for Perl 4.
+ next if $_ eq "\\" || $_ eq '';
+
+ # Handle $local:$input syntax.
+ my ($local, @rest) = split (/:/);
+ @rest = ("$local.in",) unless @rest;
+ # Keep in sync with test 'conffile-leading-dot.sh'.
+ msg ('unsupported', $where,
+ "omit leading './' from config file names such as '$local';"
+ . "\nremake rules might be subtly broken otherwise")
+ if ($local =~ /^\.\//);
+ my $input = locate_am @rest;
+ if ($input)
+ {
+ # We have a file that automake should generate.
+ $make_list{$input} = join (':', ($local, @rest));
+ }
+ else
+ {
+ # We have a file that automake should cause to be
+ # rebuilt, but shouldn't generate itself.
+ push (@other_input_files, $_);
+ }
+ $ac_config_files_location{$local} = $where;
+ $ac_config_files_condition{$local} =
+ new Automake::Condition (@cond_stack)
+ if (@cond_stack);
+ }
+}
+
+
+sub scan_autoconf_traces
+{
+ my ($filename) = @_;
+
+ # Macros to trace, with their minimal number of arguments.
+ #
+ # IMPORTANT: If you add a macro here, you should also add this macro
+ # ========= to Automake-preselection in autoconf/lib/autom4te.in.
+ my %traced = (
+ AC_CANONICAL_BUILD => 0,
+ AC_CANONICAL_HOST => 0,
+ AC_CANONICAL_TARGET => 0,
+ AC_CONFIG_AUX_DIR => 1,
+ AC_CONFIG_FILES => 1,
+ AC_CONFIG_HEADERS => 1,
+ AC_CONFIG_LIBOBJ_DIR => 1,
+ AC_CONFIG_LINKS => 1,
+ AC_FC_SRCEXT => 1,
+ AC_INIT => 0,
+ AC_LIBSOURCE => 1,
+ AC_REQUIRE_AUX_FILE => 1,
+ AC_SUBST_TRACE => 1,
+ AM_AUTOMAKE_VERSION => 1,
+ AM_PROG_MKDIR_P => 0,
+ AM_CONDITIONAL => 2,
+ AM_EXTRA_RECURSIVE_TARGETS => 1,
+ AM_GNU_GETTEXT => 0,
+ AM_GNU_GETTEXT_INTL_SUBDIR => 0,
+ AM_INIT_AUTOMAKE => 0,
+ AM_MAINTAINER_MODE => 0,
+ AM_PROG_AR => 0,
+ _AM_SUBST_NOTMAKE => 1,
+ _AM_COND_IF => 1,
+ _AM_COND_ELSE => 1,
+ _AM_COND_ENDIF => 1,
+ LT_SUPPORTED_TAG => 1,
+ _LT_AC_TAGCONFIG => 0,
+ m4_include => 1,
+ m4_sinclude => 1,
+ sinclude => 1,
+ );
+
+ my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
+
+ # Use a separator unlikely to be used, not ':', the default, which
+ # has a precise meaning for AC_CONFIG_FILES and so on.
+ $traces .= join (' ',
+ map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
+ (keys %traced));
+
+ my $tracefh = new Automake::XFile ("$traces $filename |");
+ verb "reading $traces";
+
+ @cond_stack = ();
+ my $where;
+
+ while ($_ = $tracefh->getline)
+ {
+ chomp;
+ my ($here, $depth, @args) = split (/::/);
+ $where = new Automake::Location $here;
+ my $macro = $args[0];
+
+ prog_error ("unrequested trace '$macro'")
+ unless exists $traced{$macro};
+
+ # Skip and diagnose malformed calls.
+ if ($#args < $traced{$macro})
+ {
+ msg ('syntax', $where, "not enough arguments for $macro");
+ next;
+ }
+
+ # Alphabetical ordering please.
+ if ($macro eq 'AC_CANONICAL_BUILD')
+ {
+ if ($seen_canonical <= AC_CANONICAL_BUILD)
+ {
+ $seen_canonical = AC_CANONICAL_BUILD;
+ }
+ }
+ elsif ($macro eq 'AC_CANONICAL_HOST')
+ {
+ if ($seen_canonical <= AC_CANONICAL_HOST)
+ {
+ $seen_canonical = AC_CANONICAL_HOST;
+ }
+ }
+ elsif ($macro eq 'AC_CANONICAL_TARGET')
+ {
+ $seen_canonical = AC_CANONICAL_TARGET;
+ }
+ elsif ($macro eq 'AC_CONFIG_AUX_DIR')
+ {
+ if ($seen_init_automake)
+ {
+ error ($where, "AC_CONFIG_AUX_DIR must be called before "
+ . "AM_INIT_AUTOMAKE ...", partial => 1);
+ error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
+ }
+ $config_aux_dir = $args[1];
+ $config_aux_dir_set_in_configure_ac = 1;
+ check_directory ($config_aux_dir, $where);
+ }
+ elsif ($macro eq 'AC_CONFIG_FILES')
+ {
+ # Look at potential Makefile.am's.
+ scan_autoconf_config_files ($where, $args[1]);
+ }
+ elsif ($macro eq 'AC_CONFIG_HEADERS')
+ {
+ foreach my $spec (split (' ', $args[1]))
+ {
+ my ($dest, @src) = split (':', $spec);
+ $ac_config_files_location{$dest} = $where;
+ push @config_headers, $spec;
+ }
+ }
+ elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
+ {
+ $config_libobj_dir = $args[1];
+ check_directory ($config_libobj_dir, $where);
+ }
+ elsif ($macro eq 'AC_CONFIG_LINKS')
+ {
+ foreach my $spec (split (' ', $args[1]))
+ {
+ my ($dest, $src) = split (':', $spec);
+ $ac_config_files_location{$dest} = $where;
+ push @config_links, $spec;
+ }
+ }
+ elsif ($macro eq 'AC_FC_SRCEXT')
+ {
+ my $suffix = $args[1];
+ # These flags are used as %SOURCEFLAG% in depend2.am,
+ # where the trailing space is important.
+ $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
+ if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
+ }
+ elsif ($macro eq 'AC_INIT')
+ {
+ if (defined $args[2])
+ {
+ $package_version = $args[2];
+ $package_version_location = $where;
+ }
+ }
+ elsif ($macro eq 'AC_LIBSOURCE')
+ {
+ $libsources{$args[1]} = $here;
+ }
+ elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
+ {
+ # Only remember the first time a file is required.
+ $required_aux_file{$args[1]} = $where
+ unless exists $required_aux_file{$args[1]};
+ }
+ elsif ($macro eq 'AC_SUBST_TRACE')
+ {
+ # Just check for alphanumeric in AC_SUBST_TRACE. If you do
+ # AC_SUBST(5), then too bad.
+ $configure_vars{$args[1]} = $where
+ if $args[1] =~ /^\w+$/;
+ }
+ elsif ($macro eq 'AM_AUTOMAKE_VERSION')
+ {
+ error ($where,
+ "version mismatch. This is Automake $VERSION,\n" .
+ "but the definition used by this AM_INIT_AUTOMAKE\n" .
+ "comes from Automake $args[1]. You should recreate\n" .
+ "aclocal.m4 with aclocal and run automake again.\n",
+ # $? = 63 is used to indicate version mismatch to missing.
+ exit_code => 63)
+ if $VERSION ne $args[1];
+
+ $seen_automake_version = 1;
+ }
+ elsif ($macro eq 'AM_PROG_MKDIR_P')
+ {
+ msg 'obsolete', $where, <<'EOF';
+The 'AM_PROG_MKDIR_P' macro is deprecated, and its use is discouraged.
+You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
+and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
+EOF
+ }
+ elsif ($macro eq 'AM_CONDITIONAL')
+ {
+ $configure_cond{$args[1]} = $where;
+ }
+ elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
+ {
+ # Empty leading/trailing fields might be produced by split,
+ # hence the grep is really needed.
+ push @extra_recursive_targets,
+ grep (/./, (split /\s+/, $args[1]));
+ }
+ elsif ($macro eq 'AM_GNU_GETTEXT')
+ {
+ $seen_gettext = $where;
+ $ac_gettext_location = $where;
+ $seen_gettext_external = grep ($_ eq 'external', @args);
+ }
+ elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
+ {
+ $seen_gettext_intl = $where;
+ }
+ elsif ($macro eq 'AM_INIT_AUTOMAKE')
+ {
+ $seen_init_automake = $where;
+ if (defined $args[2])
+ {
+ msg 'obsolete', $where, <<'EOF';
+AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
+http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
+EOF
+ $package_version = $args[2];
+ $package_version_location = $where;
+ }
+ elsif (defined $args[1])
+ {
+ my @opts = split (' ', $args[1]);
+ @opts = map { { option => $_, where => $where } } @opts;
+ exit $exit_code unless process_global_option_list (@opts);
+ }
+ }
+ elsif ($macro eq 'AM_MAINTAINER_MODE')
+ {
+ $seen_maint_mode = $where;
+ }
+ elsif ($macro eq 'AM_PROG_AR')
+ {
+ $seen_ar = $where;
+ }
+ elsif ($macro eq '_AM_COND_IF')
+ {
+ cond_stack_if ('', $args[1], $where);
+ error ($where, "missing m4 quoting, macro depth $depth")
+ if ($depth != 1);
+ }
+ elsif ($macro eq '_AM_COND_ELSE')
+ {
+ cond_stack_else ('!', $args[1], $where);
+ error ($where, "missing m4 quoting, macro depth $depth")
+ if ($depth != 1);
+ }
+ elsif ($macro eq '_AM_COND_ENDIF')
+ {
+ cond_stack_endif (undef, undef, $where);
+ error ($where, "missing m4 quoting, macro depth $depth")
+ if ($depth != 1);
+ }
+ elsif ($macro eq '_AM_SUBST_NOTMAKE')
+ {
+ $ignored_configure_vars{$args[1]} = $where;
+ }
+ elsif ($macro eq 'm4_include'
+ || $macro eq 'm4_sinclude'
+ || $macro eq 'sinclude')
+ {
+ # Skip missing 'sinclude'd files.
+ next if $macro ne 'm4_include' && ! -f $args[1];
+
+ # Some modified versions of Autoconf don't use
+ # frozen files. Consequently it's possible that we see all
+ # m4_include's performed during Autoconf's startup.
+ # Obviously we don't want to distribute Autoconf's files
+ # so we skip absolute filenames here.
+ push @configure_deps, '$(top_srcdir)/' . $args[1]
+ unless $here =~ m,^(?:\w:)?[\\/],;
+ # Keep track of the greatest timestamp.
+ if (-e $args[1])
+ {
+ my $mtime = mtime $args[1];
+ $configure_deps_greatest_timestamp = $mtime
+ if $mtime > $configure_deps_greatest_timestamp;
+ }
+ }
+ elsif ($macro eq 'LT_SUPPORTED_TAG')
+ {
+ $libtool_tags{$args[1]} = 1;
+ $libtool_new_api = 1;
+ }
+ elsif ($macro eq '_LT_AC_TAGCONFIG')
+ {
+ # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
+ # We use it to detect whether tags are supported. Our
+ # preferred interface is LT_SUPPORTED_TAG, but it was
+ # introduced in Libtool 1.6.
+ if (0 == keys %libtool_tags)
+ {
+ # Hardcode the tags supported by Libtool 1.5.
+ %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
+ }
+ }
+ }
+
+ error ($where, "condition stack not properly closed")
+ if (@cond_stack);
+
+ $tracefh->close;
+}
+
+
+# Check whether we use 'configure.ac' or 'configure.in'.
+# Scan it (and possibly 'aclocal.m4') for interesting things.
+# We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
+sub scan_autoconf_files ()
+{
+ # Reinitialize libsources here. This isn't really necessary,
+ # since we currently assume there is only one configure.ac. But
+ # that won't always be the case.
+ %libsources = ();
+
+ # Keep track of the youngest configure dependency.
+ $configure_deps_greatest_timestamp = mtime $configure_ac;
+ if (-e 'aclocal.m4')
+ {
+ my $mtime = mtime 'aclocal.m4';
+ $configure_deps_greatest_timestamp = $mtime
+ if $mtime > $configure_deps_greatest_timestamp;
+ }
+
+ scan_autoconf_traces ($configure_ac);
+
+ @configure_input_files = sort keys %make_list;
+ # Set input and output files if not specified by user.
+ if (! @input_files)
+ {
+ @input_files = @configure_input_files;
+ %output_files = %make_list;
+ }
+
+
+ if (! $seen_init_automake)
+ {
+ err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
+ . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
+ . "\nthat aclocal.m4 is present in the top-level directory,\n"
+ . "and that aclocal.m4 was recently regenerated "
+ . "(using aclocal)");
+ }
+ else
+ {
+ if (! $seen_automake_version)
+ {
+ if (-f 'aclocal.m4')
+ {
+ error ($seen_init_automake,
+ "your implementation of AM_INIT_AUTOMAKE comes from " .
+ "an\nold Automake version. You should recreate " .
+ "aclocal.m4\nwith aclocal and run automake again",
+ # $? = 63 is used to indicate version mismatch to missing.
+ exit_code => 63);
+ }
+ else
+ {
+ error ($seen_init_automake,
+ "no proper implementation of AM_INIT_AUTOMAKE was " .
+ "found,\nprobably because aclocal.m4 is missing.\n" .
+ "You should run aclocal to create this file, then\n" .
+ "run automake again");
+ }
+ }
+ }
+
+ locate_aux_dir ();
+
+ # Look for some files we need. Always check for these. This
+ # check must be done for every run, even those where we are only
+ # looking at a subdir Makefile. We must set relative_dir for
+ # push_required_file to work.
+ # Sort the files for stable verbose output.
+ $relative_dir = '.';
+ foreach my $file (sort keys %required_aux_file)
+ {
+ require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
+ }
+ err_am "'install.sh' is an anachronism; use 'install-sh' instead"
+ if -f $config_aux_dir . '/install.sh';
+
+ # Preserve dist_common for later.
+ $configure_dist_common = variable_value ('DIST_COMMON') || '';
+
+}
+
+################################################################
+
+# Do any extra checking for GNU standards.
+sub check_gnu_standards ()
+{
+ if ($relative_dir eq '.')
+ {
+ # In top level (or only) directory.
+ require_file ("$am_file.am", GNU,
+ qw/INSTALL NEWS README AUTHORS ChangeLog/);
+
+ # Accept one of these three licenses; default to COPYING.
+ # Make sure we do not overwrite an existing license.
+ my $license;
+ foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
+ {
+ if (-f $_)
+ {
+ $license = $_;
+ last;
+ }
+ }
+ require_file ("$am_file.am", GNU, 'COPYING')
+ unless $license;
+ }
+
+ for my $opt ('no-installman', 'no-installinfo')
+ {
+ msg ('error-gnu', option $opt,
+ "option '$opt' disallowed by GNU standards")
+ if option $opt;
+ }
+}
+
+# Do any extra checking for GNITS standards.
+sub check_gnits_standards ()
+{
+ if ($relative_dir eq '.')
+ {
+ # In top level (or only) directory.
+ require_file ("$am_file.am", GNITS, 'THANKS');
+ }
+}
+
+################################################################
+#
+# Functions to handle files of each language.
+
+# Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
+# simple formula: Return value is LANG_SUBDIR if the resulting object
+# file should be in a subdir if the source file is, LANG_PROCESS if
+# file is to be dealt with, LANG_IGNORE otherwise.
+
+# Much of the actual processing is handled in
+# handle_single_transform. These functions exist so that
+# auxiliary information can be recorded for a later cleanup pass.
+# Note that the calls to these functions are computed, so don't bother
+# searching for their precise names in the source.
+
+# This is just a convenience function that can be used to determine
+# when a subdir object should be used.
+sub lang_sub_obj ()
+{
+ return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
+}
+
+# Rewrite a single header file.
+sub lang_header_rewrite
+{
+ # Header files are simply ignored.
+ return LANG_IGNORE;
+}
+
+# Rewrite a single Vala source file.
+sub lang_vala_rewrite
+{
+ my ($directory, $base, $ext) = @_;
+
+ (my $newext = $ext) =~ s/vala$/c/;
+ return (LANG_SUBDIR, $newext);
+}
+
+# Rewrite a single yacc/yacc++ file.
+sub lang_yacc_rewrite
+{
+ my ($directory, $base, $ext) = @_;
+
+ my $r = lang_sub_obj;
+ (my $newext = $ext) =~ tr/y/c/;
+ return ($r, $newext);
+}
+sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
+
+# Rewrite a single lex/lex++ file.
+sub lang_lex_rewrite
+{
+ my ($directory, $base, $ext) = @_;
+
+ my $r = lang_sub_obj;
+ (my $newext = $ext) =~ tr/l/c/;
+ return ($r, $newext);
+}
+sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
+
+# Rewrite a single Java file.
+sub lang_java_rewrite
+{
+ return LANG_SUBDIR;
+}
+
+# The lang_X_finish functions are called after all source file
+# processing is done. Each should handle defining rules for the
+# language, etc. A finish function is only called if a source file of
+# the appropriate type has been seen.
+
+sub lang_vala_finish_target
+{
+ my ($self, $name) = @_;
+
+ my $derived = canonicalize ($name);
+ my $var = var "${derived}_SOURCES";
+ return unless $var;
+
+ my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
+
+ # For automake bug#11229.
+ return unless @vala_sources;
+
+ foreach my $vala_file (@vala_sources)
+ {
+ my $c_file = $vala_file;
+ if ($c_file =~ s/(.*)\.vala$/$1.c/)
+ {
+ $c_file = "\$(srcdir)/$c_file";
+ $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
+ . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
+ . "\t\@if test -f \$@; then :; else \\\n"
+ . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
+ . "\tfi\n";
+ $clean_files{$c_file} = MAINTAINER_CLEAN;
+ }
+ }
+
+ # Add rebuild rules for generated header and vapi files
+ my $flags = var ($derived . '_VALAFLAGS');
+ if ($flags)
+ {
+ my $lastflag = '';
+ foreach my $flag ($flags->value_as_list_recursive)
+ {
+ if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
+ '--vapi', '--internal-vapi', '--gir')))
+ {
+ my $headerfile = "\$(srcdir)/$flag";
+ $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
+ . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
+ . "\t\@if test -f \$@; then :; else \\\n"
+ . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
+ . "\tfi\n";
+
+ # valac is not used when building from dist tarballs
+ # distribute the generated files
+ push_dist_common ($headerfile);
+ $clean_files{$headerfile} = MAINTAINER_CLEAN;
+ }
+ $lastflag = $flag;
+ }
+ }
+
+ my $compile = $self->compile;
+
+ # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
+ # rule into '${derived}_VALAFLAGS' if it exists.
+ my $val = "${derived}_VALAFLAGS";
+ $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
+ if set_seen ($val);
+
+ # VALAFLAGS is a user variable (per GNU Standards),
+ # it should not be overridden in the Makefile...
+ check_user_variables 'VALAFLAGS';
+
+ my $dirname = dirname ($name);
+
+ # Only generate C code, do not run C compiler
+ $compile .= " -C";
+
+ my $verbose = verbose_flag ('VALAC');
+ my $silent = silent_flag ();
+ my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
+
+ $output_rules .=
+ "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
+# Since the C files generated from the vala sources depend on the
+# ${derived}_vala.stamp file, we must ensure its timestamp is older than
+# those of the C files generated by the valac invocation below (this is
+# especially important on systems with sub-second timestamp resolution).
+# Thus we need to create the stamp file *before* invoking valac, and to
+# move it to its final location only after valac has been invoked.
+ "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
+ "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
+ "\t${silent}mv -f \$\@-t \$\@\n";
+
+ push_dist_common ($stampfile);
+
+ $clean_files{$stampfile} = MAINTAINER_CLEAN;
+}
+
+# Add output rules to invoke valac and create stamp file as a witness
+# to handle multiple outputs. This function is called after all source
+# file processing is done.
+sub lang_vala_finish ()
+{
+ my ($self) = @_;
+
+ foreach my $prog (keys %known_programs)
+ {
+ lang_vala_finish_target ($self, $prog);
+ }
+
+ while (my ($name) = each %known_libraries)
+ {
+ lang_vala_finish_target ($self, $name);
+ }
+}
+
+# The built .c files should be cleaned only on maintainer-clean
+# as the .c files are distributed. This function is called for each
+# .vala source file.
+sub lang_vala_target_hook
+{
+ my ($self, $aggregate, $output, $input, %transform) = @_;
+
+ $clean_files{$output} = MAINTAINER_CLEAN;
+}
+
+# This is a yacc helper which is called whenever we have decided to
+# compile a yacc file.
+sub lang_yacc_target_hook
+{
+ my ($self, $aggregate, $output, $input, %transform) = @_;
+
+ # If some relevant *YFLAGS variable contains the '-d' flag, we'll
+ # have to to generate special code.
+ my $yflags_contains_minus_d = 0;
+
+ foreach my $pfx ("", "${aggregate}_")
+ {
+ my $yflagsvar = var ("${pfx}YFLAGS");
+ next unless $yflagsvar;
+ # We cannot work reliably with conditionally-defined YFLAGS.
+ if ($yflagsvar->has_conditional_contents)
+ {
+ msg_var ('unsupported', $yflagsvar,
+ "'${pfx}YFLAGS' cannot have conditional contents");
+ }
+ else
+ {
+ $yflags_contains_minus_d = 1
+ if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
+ }
+ }
+
+ if ($yflags_contains_minus_d)
+ {
+ # Found a '-d' that applies to the compilation of this file.
+ # Add a dependency for the generated header file, and arrange
+ # for that file to be included in the distribution.
+
+ # The extension of the output file (e.g., '.c' or '.cxx').
+ # We'll need it to compute the name of the generated header file.
+ (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
+
+ # We know that a yacc input should be turned into either a C or
+ # C++ output file. We depend on this fact (here and in yacc.am),
+ # so check that it really holds.
+ my $lang = $languages{$extension_map{$output_ext}};
+ prog_error "invalid output name '$output' for yacc file '$input'"
+ if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
+
+ (my $header_ext = $output_ext) =~ s/c/h/g;
+ # Quote $output_ext in the regexp, so that dots in it are taken
+ # as literal dots, not as metacharacters.
+ (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
+
+ foreach my $cond (Automake::Rule::define (${header}, 'internal',
+ RULE_AUTOMAKE, TRUE,
+ INTERNAL))
+ {
+ my $condstr = $cond->subst_string;
+ $output_rules .=
+ "$condstr${header}: $output\n"
+ # Recover from removal of $header
+ . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
+ . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
+ }
+ # Distribute the generated file, unless its .y source was
+ # listed in a nodist_ variable. (handle_source_transform()
+ # will set DIST_SOURCE.)
+ push_dist_common ($header)
+ if $transform{'DIST_SOURCE'};
+
+ # The GNU rules say that yacc/lex output files should be removed
+ # by maintainer-clean. However, if the files are not distributed,
+ # then we want to remove them with "make clean"; otherwise,
+ # "make distcheck" will fail.
+ $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
+ }
+ # See the comment above for $HEADER.
+ $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
+}
+
+# This is a lex helper which is called whenever we have decided to
+# compile a lex file.
+sub lang_lex_target_hook
+{
+ my ($self, $aggregate, $output, $input, %transform) = @_;
+ # The GNU rules say that yacc/lex output files should be removed
+ # by maintainer-clean. However, if the files are not distributed,
+ # then we want to remove them with "make clean"; otherwise,
+ # "make distcheck" will fail.
+ $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
+}
+
+# This is a helper for both lex and yacc.
+sub yacc_lex_finish_helper ()
+{
+ return if defined $language_scratch{'lex-yacc-done'};
+ $language_scratch{'lex-yacc-done'} = 1;
+
+ # FIXME: for now, no line number.
+ require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
+ define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
+}
+
+sub lang_yacc_finish ()
+{
+ return if defined $language_scratch{'yacc-done'};
+ $language_scratch{'yacc-done'} = 1;
+
+ reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
+
+ yacc_lex_finish_helper;
+}
+
+
+sub lang_lex_finish ()
+{
+ return if defined $language_scratch{'lex-done'};
+ $language_scratch{'lex-done'} = 1;
+
+ yacc_lex_finish_helper;
+}
+
+
+# Given a hash table of linker names, pick the name that has the most
+# precedence. This is lame, but something has to have global
+# knowledge in order to eliminate the conflict. Add more linkers as
+# required.
+sub resolve_linker
+{
+ my (%linkers) = @_;
+
+ foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
+ {
+ return $l if defined $linkers{$l};
+ }
+ return 'LINK';
+}
+
+# Called to indicate that an extension was used.
+sub saw_extension
+{
+ my ($ext) = @_;
+ $extension_seen{$ext} = 1;
+}
+
+# register_language (%ATTRIBUTE)
+# ------------------------------
+# Register a single language.
+# Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
+sub register_language
+{
+ my (%option) = @_;
+
+ # Set the defaults.
+ $option{'autodep'} = 'no'
+ unless defined $option{'autodep'};
+ $option{'linker'} = ''
+ unless defined $option{'linker'};
+ $option{'flags'} = []
+ unless defined $option{'flags'};
+ $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
+ unless defined $option{'output_extensions'};
+ $option{'nodist_specific'} = 0
+ unless defined $option{'nodist_specific'};
+
+ my $lang = new Automake::Language (%option);
+
+ # Fill indexes.
+ $extension_map{$_} = $lang->name foreach @{$lang->extensions};
+ $languages{$lang->name} = $lang;
+ my $link = $lang->linker;
+ if ($link)
+ {
+ if (exists $link_languages{$link})
+ {
+ prog_error ("'$link' has different definitions in "
+ . $lang->name . " and " . $link_languages{$link}->name)
+ if $lang->link ne $link_languages{$link}->link;
+ }
+ else
+ {
+ $link_languages{$link} = $lang;
+ }
+ }
+
+ # Update the pattern of known extensions.
+ accept_extensions (@{$lang->extensions});
+
- while (! $extension_map{$source_ext}
- && $source_ext ne $obj
- && exists $suffix_rules->{$source_ext}
- && exists $suffix_rules->{$source_ext}{$obj})
++ # Update the suffix rules map.
+ foreach my $suffix (@{$lang->extensions})
+ {
+ foreach my $dest ($lang->output_extensions->($suffix))
+ {
+ register_suffix_rule (INTERNAL, $suffix, $dest);
+ }
+ }
+}
+
+# derive_suffix ($EXT, $OBJ)
+# --------------------------
+# This function is used to find a path from a user-specified suffix $EXT
+# to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
+sub derive_suffix
+{
+ my ($source_ext, $obj) = @_;
+
- $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
++ while (!$extension_map{$source_ext} && $source_ext ne $obj)
+ {
++ my $new_source_ext = next_in_suffix_chain ($source_ext, $obj);
++ last if not defined $new_source_ext;
++ $source_ext = $new_source_ext;
+ }
+
+ return $source_ext;
+}
+
+
+# Pretty-print something and append to '$output_rules'.
+sub pretty_print_rule
+{
+ $output_rules .= makefile_wrap (shift, shift, @_);
+}
+
+
+################################################################
+
+
+## -------------------------------- ##
+## Handling the conditional stack. ##
+## -------------------------------- ##
+
+
+# $STRING
+# make_conditional_string ($NEGATE, $COND)
+# ----------------------------------------
+sub make_conditional_string
+{
+ my ($negate, $cond) = @_;
+ $cond = "${cond}_TRUE"
+ unless $cond =~ /^TRUE|FALSE$/;
+ $cond = Automake::Condition::conditional_negate ($cond)
+ if $negate;
+ return $cond;
+}
+
+
+my %_am_macro_for_cond =
+ (
+ AMDEP => "one of the compiler tests\n"
+ . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
+ . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
+ am__fastdepCC => 'AC_PROG_CC',
+ am__fastdepCCAS => 'AM_PROG_AS',
+ am__fastdepCXX => 'AC_PROG_CXX',
+ am__fastdepGCJ => 'AM_PROG_GCJ',
+ am__fastdepOBJC => 'AC_PROG_OBJC',
+ am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
+ am__fastdepUPC => 'AM_PROG_UPC'
+ );
+
+# $COND
+# cond_stack_if ($NEGATE, $COND, $WHERE)
+# --------------------------------------
+sub cond_stack_if
+{
+ my ($negate, $cond, $where) = @_;
+
+ if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
+ {
+ my $text = "$cond does not appear in AM_CONDITIONAL";
+ my $scope = US_LOCAL;
+ if (exists $_am_macro_for_cond{$cond})
+ {
+ my $mac = $_am_macro_for_cond{$cond};
+ $text .= "\n The usual way to define '$cond' is to add ";
+ $text .= ($mac =~ / /) ? $mac : "'$mac'";
+ $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
+ # These warnings appear in Automake files (depend2.am),
+ # so there is no need to display them more than once:
+ $scope = US_GLOBAL;
+ }
+ error $where, $text, uniq_scope => $scope;
+ }
+
+ push (@cond_stack, make_conditional_string ($negate, $cond));
+
+ return new Automake::Condition (@cond_stack);
+}
+
+
+# $COND
+# cond_stack_else ($NEGATE, $COND, $WHERE)
+# ----------------------------------------
+sub cond_stack_else
+{
+ my ($negate, $cond, $where) = @_;
+
+ if (! @cond_stack)
+ {
+ error $where, "else without if";
+ return FALSE;
+ }
+
+ $cond_stack[$#cond_stack] =
+ Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
+
+ # If $COND is given, check against it.
+ if (defined $cond)
+ {
+ $cond = make_conditional_string ($negate, $cond);
+
+ error ($where, "else reminder ($negate$cond) incompatible with "
+ . "current conditional: $cond_stack[$#cond_stack]")
+ if $cond_stack[$#cond_stack] ne $cond;
+ }
+
+ return new Automake::Condition (@cond_stack);
+}
+
+
+# $COND
+# cond_stack_endif ($NEGATE, $COND, $WHERE)
+# -----------------------------------------
+sub cond_stack_endif
+{
+ my ($negate, $cond, $where) = @_;
+ my $old_cond;
+
+ if (! @cond_stack)
+ {
+ error $where, "endif without if";
+ return TRUE;
+ }
+
+ # If $COND is given, check against it.
+ if (defined $cond)
+ {
+ $cond = make_conditional_string ($negate, $cond);
+
+ error ($where, "endif reminder ($negate$cond) incompatible with "
+ . "current conditional: $cond_stack[$#cond_stack]")
+ if $cond_stack[$#cond_stack] ne $cond;
+ }
+
+ pop @cond_stack;
+
+ return new Automake::Condition (@cond_stack);
+}
+
+
+
+
+
+## ------------------------ ##
+## Handling the variables. ##
+## ------------------------ ##
+
+
+# define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
+# ----------------------------------------------------
+# Like define_variable, but the value is a list, and the variable may
+# be defined conditionally. The second argument is the condition
+# under which the value should be defined; this should be the empty
+# string to define the variable unconditionally. The third argument
+# is a list holding the values to use for the variable. The value is
+# pretty printed in the output file.
+sub define_pretty_variable
+{
+ my ($var, $cond, $where, @value) = @_;
+
+ if (! vardef ($var, $cond))
+ {
+ Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
+ '', $where, VAR_PRETTY);
+ rvar ($var)->rdef ($cond)->set_seen;
+ }
+}
+
+
+# define_variable ($VAR, $VALUE, $WHERE)
+# --------------------------------------
+# Define a new Automake Makefile variable VAR to VALUE, but only if
+# not already defined.
+sub define_variable
+{
+ my ($var, $value, $where) = @_;
+ define_pretty_variable ($var, TRUE, $where, $value);
+}
+
+
+# define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
+# ------------------------------------------------------------
+# Define the $VAR which content is the list of file names composed of
+# a @BASENAME and the $EXTENSION.
+sub define_files_variable ($\@$$)
+{
+ my ($var, $basename, $extension, $where) = @_;
+ define_variable ($var,
+ join (' ', map { "$_.$extension" } @$basename),
+ $where);
+}
+
+
+# Like define_variable, but define a variable to be the configure
+# substitution by the same name.
+sub define_configure_variable
+{
+ my ($var) = @_;
+ # Some variables we do not want to output. For instance it
+ # would be a bad idea to output `U = @U@` when `@U@` can be
+ # substituted as `\`.
+ my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
+ Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst ($var),
+ '', $configure_vars{$var}, $pretty);
+}
+
+
+# define_compiler_variable ($LANG)
+# --------------------------------
+# Define a compiler variable. We also handle defining the 'LT'
+# version of the command when using libtool.
+sub define_compiler_variable
+{
+ my ($lang) = @_;
+
+ my ($var, $value) = ($lang->compiler, $lang->compile);
+ my $libtool_tag = '';
+ $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
+ if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
+ define_variable ($var, $value, INTERNAL);
+ if (var ('LIBTOOL'))
+ {
+ my $verbose = define_verbose_libtool ();
+ define_variable ("LT$var",
+ "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS)"
+ . " \$(LIBTOOLFLAGS) --mode=compile $value",
+ INTERNAL);
+ }
+ define_verbose_tagvar ($lang->ccer || 'GEN');
+}
+
+
+sub define_linker_variable
+{
+ my ($lang) = @_;
+
+ my $libtool_tag = '';
+ $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
+ if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
+ # CCLD = $(CC).
+ define_variable ($lang->lder, $lang->ld, INTERNAL);
+ # CCLINK = $(CCLD) blah blah...
+ my $link = '';
+ if (var ('LIBTOOL'))
+ {
+ my $verbose = define_verbose_libtool ();
+ $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
+ . "\$(LIBTOOLFLAGS) --mode=link ";
+ }
+ define_variable ($lang->linker, $link . $lang->link, INTERNAL);
+ define_variable ($lang->compiler, $lang, INTERNAL);
+ define_verbose_tagvar ($lang->lder || 'GEN');
+}
+
+sub define_per_target_linker_variable
+{
+ my ($linker, $target) = @_;
+
+ # If the user wrote a custom link command, we don't define ours.
+ return "${target}_LINK"
+ if set_seen "${target}_LINK";
+
+ my $xlink = $linker ? $linker : 'LINK';
+
+ my $lang = $link_languages{$xlink};
+ prog_error "Unknown language for linker variable '$xlink'"
+ unless $lang;
+
+ my $link_command = $lang->link;
+ if (var 'LIBTOOL')
+ {
+ my $libtool_tag = '';
+ $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
+ if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
+
+ my $verbose = define_verbose_libtool ();
+ $link_command =
+ "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
+ . "--mode=link " . $link_command;
+ }
+
+ # Rewrite each occurrence of 'AM_$flag' in the link
+ # command into '${derived}_$flag' if it exists.
+ my $orig_command = $link_command;
+ my @flags = (@{$lang->flags}, 'LDFLAGS');
+ push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
+ for my $flag (@flags)
+ {
+ my $val = "${target}_$flag";
+ $link_command =~ s/\(AM_$flag\)/\($val\)/
+ if set_seen ($val);
+ }
+
+ # If the computed command is the same as the generic command, use
+ # the command linker variable.
+ return ($lang->linker, $lang->lder)
+ if $link_command eq $orig_command;
+
+ define_variable ("${target}_LINK", $link_command, INTERNAL);
+ return ("${target}_LINK", $lang->lder);
+}
+
+################################################################
+
+# check_trailing_slash ($WHERE, $LINE)
+# ------------------------------------
+# Return 1 iff $LINE ends with a slash.
+# Might modify $LINE.
+sub check_trailing_slash ($\$)
+{
+ my ($where, $line) = @_;
+
+ # Ignore '##' lines.
+ return 0 if $$line =~ /$IGNORE_PATTERN/o;
+
+ # Catch and fix a common error.
+ msg "syntax", $where, "whitespace following trailing backslash"
+ if $$line =~ s/\\\s+\n$/\\\n/;
+
+ return $$line =~ /\\$/;
+}
+
+
+# read_am_file ($AMFILE, $WHERE, $RELDIR)
+# ---------------------------------------
+# Read Makefile.am and set up %contents. Simultaneously copy lines
+# from Makefile.am into $output_trailer, or define variables as
+# appropriate. NOTE we put rules in the trailer section. We want
+# user rules to come after our generated stuff.
+sub read_am_file
+{
+ my ($amfile, $where, $reldir) = @_;
+ my $canon_reldir = &canonicalize ($reldir);
+
+ my $am_file = new Automake::XFile ("< $amfile");
+ verb "reading $amfile";
+
+ # Keep track of the youngest output dependency.
+ my $mtime = mtime $amfile;
+ $output_deps_greatest_timestamp = $mtime
+ if $mtime > $output_deps_greatest_timestamp;
+
+ my $spacing = '';
+ my $comment = '';
+ my $blank = 0;
+ my $saw_bk = 0;
+ my $var_look = VAR_ASIS;
+
+ use constant IN_VAR_DEF => 0;
+ use constant IN_RULE_DEF => 1;
+ use constant IN_COMMENT => 2;
+ my $prev_state = IN_RULE_DEF;
+
+ while ($_ = $am_file->getline)
+ {
+ $where->set ("$amfile:$.");
+ if (/$IGNORE_PATTERN/o)
+ {
+ # Merely delete comments beginning with two hashes.
+ }
+ elsif (/$WHITE_PATTERN/o)
+ {
+ error $where, "blank line following trailing backslash"
+ if $saw_bk;
+ # Stick a single white line before the incoming macro or rule.
+ $spacing = "\n";
+ $blank = 1;
+ # Flush all comments seen so far.
+ if ($comment ne '')
+ {
+ $output_vars .= $comment;
+ $comment = '';
+ }
+ }
+ elsif (/$COMMENT_PATTERN/o)
+ {
+ # Stick comments before the incoming macro or rule. Make
+ # sure a blank line precedes the first block of comments.
+ $spacing = "\n" unless $blank;
+ $blank = 1;
+ $comment .= $spacing . $_;
+ $spacing = '';
+ $prev_state = IN_COMMENT;
+ }
+ else
+ {
+ last;
+ }
+ $saw_bk = check_trailing_slash ($where, $_);
+ }
+
+ # We save the conditional stack on entry, and then check to make
+ # sure it is the same on exit. This lets us conditionally include
+ # other files.
+ my @saved_cond_stack = @cond_stack;
+ my $cond = new Automake::Condition (@cond_stack);
+
+ my $last_var_name = '';
+ my $last_var_type = '';
+ my $last_var_value = '';
+ my $last_where;
+ # FIXME: shouldn't use $_ in this loop; it is too big.
+ while ($_)
+ {
+ $where->set ("$amfile:$.");
+
+ # Make sure the line is \n-terminated.
+ chomp;
+ $_ .= "\n";
+
+ # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
+ # used by users. @MAINT@ is an anachronism now.
+ $_ =~ s/\@MAINT\@//g
+ unless $seen_maint_mode;
+
+ my $new_saw_bk = check_trailing_slash ($where, $_);
+
+ if ($reldir eq '.')
+ {
+ # If present, eat the following '_' or '/', converting
+ # "%reldir%/foo" and "%canon_reldir%_foo" into plain "foo"
+ # when $reldir is '.'.
+ $_ =~ s,%(D|reldir)%/,,g;
+ $_ =~ s,%(C|canon_reldir)%_,,g;
+ }
+ $_ =~ s/%(D|reldir)%/${reldir}/g;
+ $_ =~ s/%(C|canon_reldir)%/${canon_reldir}/g;
+
+ if (/$IGNORE_PATTERN/o)
+ {
+ # Merely delete comments beginning with two hashes.
+
+ # Keep any backslash from the previous line.
+ $new_saw_bk = $saw_bk;
+ }
+ elsif (/$WHITE_PATTERN/o)
+ {
+ # Stick a single white line before the incoming macro or rule.
+ $spacing = "\n";
+ error $where, "blank line following trailing backslash"
+ if $saw_bk;
+ }
+ elsif (/$COMMENT_PATTERN/o)
+ {
+ error $where, "comment following trailing backslash"
+ if $saw_bk && $prev_state != IN_COMMENT;
+
+ # Stick comments before the incoming macro or rule.
+ $comment .= $spacing . $_;
+ $spacing = '';
+ $prev_state = IN_COMMENT;
+ }
+ elsif ($saw_bk)
+ {
+ if ($prev_state == IN_RULE_DEF)
+ {
+ my $cond = new Automake::Condition @cond_stack;
+ $output_trailer .= $cond->subst_string;
+ $output_trailer .= $_;
+ }
+ elsif ($prev_state == IN_COMMENT)
+ {
+ # If the line doesn't start with a '#', add it.
+ # We do this because a continued comment like
+ # # A = foo \
+ # bar \
+ # baz
+ # is not portable. BSD make doesn't honor
+ # escaped newlines in comments.
+ s/^#?/#/;
+ $comment .= $spacing . $_;
+ }
+ else # $prev_state == IN_VAR_DEF
+ {
+ $last_var_value .= ' '
+ unless $last_var_value =~ /\s$/;
+ $last_var_value .= $_;
+
+ if (!/\\$/)
+ {
+ Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
+ $last_var_type, $cond,
+ $last_var_value, $comment,
+ $last_where, VAR_ASIS)
+ if $cond != FALSE;
+ $comment = $spacing = '';
+ }
+ }
+ }
+
+ elsif (/$IF_PATTERN/o)
+ {
+ $cond = cond_stack_if ($1, $2, $where);
+ }
+ elsif (/$ELSE_PATTERN/o)
+ {
+ $cond = cond_stack_else ($1, $2, $where);
+ }
+ elsif (/$ENDIF_PATTERN/o)
+ {
+ $cond = cond_stack_endif ($1, $2, $where);
+ }
+
+ elsif (/$RULE_PATTERN/o)
+ {
+ # Found a rule.
+ $prev_state = IN_RULE_DEF;
+
+ # For now we have to output all definitions of user rules
+ # and can't diagnose duplicates (see the comment in
+ # Automake::Rule::define). So we go on and ignore the return value.
+ Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
+
+ check_variable_expansions ($_, $where);
+
+ $output_trailer .= $comment . $spacing;
+ my $cond = new Automake::Condition @cond_stack;
+ $output_trailer .= $cond->subst_string;
+ $output_trailer .= $_;
+ $comment = $spacing = '';
+ }
+ elsif (/$ASSIGNMENT_PATTERN/o)
+ {
+ # Found a macro definition.
+ $prev_state = IN_VAR_DEF;
+ $last_var_name = $1;
+ $last_var_type = $2;
+ $last_var_value = $3;
+ $last_where = $where->clone;
+ if ($3 ne '' && substr ($3, -1) eq "\\")
+ {
+ # We preserve the '\' because otherwise the long lines
+ # that are generated will be truncated by broken
+ # 'sed's.
+ $last_var_value = $3 . "\n";
+ }
+ # Normally we try to output variable definitions in the
+ # same format they were input. However, POSIX compliant
+ # systems are not required to support lines longer than
+ # 2048 bytes (most notably, some sed implementation are
+ # limited to 4000 bytes, and sed is used by config.status
+ # to rewrite Makefile.in into Makefile). Moreover nobody
+ # would really write such long lines by hand since it is
+ # hardly maintainable. So if a line is longer that 1000
+ # bytes (an arbitrary limit), assume it has been
+ # automatically generated by some tools, and flatten the
+ # variable definition. Otherwise, keep the variable as it
+ # as been input.
+ $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
+
+ if (!/\\$/)
+ {
+ Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
+ $last_var_type, $cond,
+ $last_var_value, $comment,
+ $last_where, $var_look)
+ if $cond != FALSE;
+ $comment = $spacing = '';
+ $var_look = VAR_ASIS;
+ }
+ }
+ elsif (/$INCLUDE_PATTERN/o)
+ {
+ my $path = $1;
+
+ if ($path =~ s/^\$\(top_srcdir\)\///)
+ {
+ push (@include_stack, "\$\(top_srcdir\)/$path");
+ # Distribute any included file.
+
+ # Always use the $(top_srcdir) prefix in DIST_COMMON,
+ # otherwise OSF make will implicitly copy the included
+ # file in the build tree during "make distdir" to satisfy
+ # the dependency.
+ # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
+ push_dist_common ("\$\(top_srcdir\)/$path");
+ }
+ else
+ {
+ $path =~ s/\$\(srcdir\)\///;
+ push (@include_stack, "\$\(srcdir\)/$path");
+ # Always use the $(srcdir) prefix in DIST_COMMON,
+ # otherwise OSF make will implicitly copy the included
+ # file in the build tree during "make distdir" to satisfy
+ # the dependency.
+ # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
+ push_dist_common ("\$\(srcdir\)/$path");
+ $path = $relative_dir . "/" . $path if $relative_dir ne '.';
+ }
+ my $new_reldir = File::Spec->abs2rel ($path, $relative_dir);
+ $new_reldir = '.' if $new_reldir !~ s,/[^/]*$,,;
+ $where->push_context ("'$path' included from here");
+ read_am_file ($path, $where, $new_reldir);
+ $where->pop_context;
+ }
+ else
+ {
+ # This isn't an error; it is probably a continued rule.
+ # In fact, this is what we assume.
+ $prev_state = IN_RULE_DEF;
+ check_variable_expansions ($_, $where);
+ $output_trailer .= $comment . $spacing;
+ my $cond = new Automake::Condition @cond_stack;
+ $output_trailer .= $cond->subst_string;
+ $output_trailer .= $_;
+ $comment = $spacing = '';
+ error $where, "'#' comment at start of rule is unportable"
+ if $_ =~ /^\t\s*\#/;
+ }
+
+ $saw_bk = $new_saw_bk;
+ $_ = $am_file->getline;
+ }
+
+ $output_trailer .= $comment;
+
+ error ($where, "trailing backslash on last line")
+ if $saw_bk;
+
+ error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
+ : "too many conditionals closed in include file"))
+ if "@saved_cond_stack" ne "@cond_stack";
+}
+
+
+# A helper for read_main_am_file which initializes configure variables
+# and variables from header-vars.am.
+sub define_standard_variables ()
+{
+ my $saved_output_vars = $output_vars;
+ my ($comments, undef, $rules) =
+ file_contents_internal (1, "$libdir/am/header-vars.am",
+ new Automake::Location);
+
+ foreach my $var (sort keys %configure_vars)
+ {
+ define_configure_variable ($var);
+ }
+
+ $output_vars .= $comments . $rules;
+}
+
+
+# read_main_am_file ($MAKEFILE_AM, $MAKEFILE_IN)
+# ----------------------------------------------
+sub read_main_am_file
+{
+ my ($amfile, $infile) = @_;
+
+ # This supports the strange variable tricks we are about to play.
+ prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
+ if (scalar (variables) > 0);
+
+ # Generate copyright header for generated Makefile.in.
+ # We do discard the output of predefined variables, handled below.
+ $output_vars = ("# " . basename ($infile) . " generated by automake "
+ . $VERSION . " from " . basename ($amfile) . ".\n");
+ $output_vars .= '# ' . subst ('configure_input') . "\n";
+ $output_vars .= $gen_copyright;
+
+ # We want to predefine as many variables as possible. This lets
+ # the user set them with '+=' in Makefile.am.
+ define_standard_variables;
+
+ # Read user file, which might override some of our values.
+ read_am_file ($amfile, new Automake::Location, '.');
+}
+
+
+
+################################################################
+
+# $STRING
+# flatten ($ORIGINAL_STRING)
+# --------------------------
+sub flatten
+{
+ $_ = shift;
+
+ s/\\\n//somg;
+ s/\s+/ /g;
+ s/^ //;
+ s/ $//;
+
+ return $_;
+}
+
+
+# transform_token ($TOKEN, \%PAIRS, $KEY)
+# ---------------------------------------
+# Return the value associated to $KEY in %PAIRS, as used on $TOKEN
+# (which should be ?KEY? or any of the special %% requests)..
+sub transform_token ($\%$)
+{
+ my ($token, $transform, $key) = @_;
+ my $res = $transform->{$key};
+ prog_error "Unknown key '$key' in '$token'" unless defined $res;
+ return $res;
+}
+
+
+# transform ($TOKEN, \%PAIRS)
+# ---------------------------
+# If ($TOKEN, $VAL) is in %PAIRS:
+# - replaces %KEY% with $VAL,
+# - enables/disables ?KEY? and ?!KEY?,
+# - replaces %?KEY% with TRUE or FALSE.
+sub transform ($\%)
+{
+ my ($token, $transform) = @_;
+
+ # %KEY%.
+ # Must be before the following pattern to exclude the case
+ # when there is neither IFTRUE nor IFFALSE.
+ if ($token =~ /^%([\w\-]+)%$/)
+ {
+ return transform_token ($token, %$transform, $1);
+ }
+ # %?KEY%.
+ elsif ($token =~ /^%\?([\w\-]+)%$/)
+ {
+ return transform_token ($token, %$transform, $1) ? 'TRUE' : 'FALSE';
+ }
+ # ?KEY? and ?!KEY?.
+ elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
+ {
+ my $neg = ($1 eq '!') ? 1 : 0;
+ my $val = transform_token ($token, %$transform, $2);
+ return (!!$val == $neg) ? '##%' : '';
+ }
+ else
+ {
+ prog_error "Unknown request format: $token";
+ }
+}
+
+# $TEXT
+# preprocess_file ($MAKEFILE, [%TRANSFORM])
+# -----------------------------------------
+# Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
+# No extra parsing or post-processing is done (i.e., recognition of
+# rules declaration or of make variables definitions).
+sub preprocess_file
+{
+ my ($file, %transform) = @_;
+
+ # Complete %transform with global options.
+ # Note that %transform goes last, so it overrides global options.
+ %transform = ( 'MAINTAINER-MODE'
+ => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
+
+ 'XZ' => !! option 'dist-xz',
+ 'LZIP' => !! option 'dist-lzip',
+ 'BZIP2' => !! option 'dist-bzip2',
+ 'COMPRESS' => !! option 'dist-tarZ',
+ 'GZIP' => ! option 'no-dist-gzip',
+ 'SHAR' => !! option 'dist-shar',
+ 'ZIP' => !! option 'dist-zip',
+
+ 'INSTALL-INFO' => ! option 'no-installinfo',
+ 'INSTALL-MAN' => ! option 'no-installman',
+ 'CK-NEWS' => !! option 'check-news',
+
+ 'SUBDIRS' => !! var ('SUBDIRS'),
+ 'TOPDIR_P' => $relative_dir eq '.',
+
+ 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
+ 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
+ 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
+
+ 'LIBTOOL' => !! var ('LIBTOOL'),
+ 'NONLIBTOOL' => 1,
+ %transform);
+
+ if (! defined ($_ = $am_file_cache{$file}))
+ {
+ verb "reading $file";
+ # Swallow the whole file.
+ my $fc_file = new Automake::XFile "< $file";
+ my $saved_dollar_slash = $/;
+ undef $/;
+ $_ = $fc_file->getline;
+ $/ = $saved_dollar_slash;
+ $fc_file->close;
+ # Remove ##-comments.
+ # Besides we don't need more than two consecutive new-lines.
+ s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
+ # Remember the contents of the just-read file.
+ $am_file_cache{$file} = $_;
+ }
+
+ # Substitute Automake template tokens.
+ s/(?: % \?? [\w\-]+ %
+ | \? !? [\w\-]+ \?
+ )/transform($&, %transform)/gex;
+ # transform() may have added some ##%-comments to strip.
+ # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
+ # ####### and do not remove the latter.)
+ s/^[ \t]*(?:##%)+.*\n//gm;
+
+ return $_;
+}
+
+
+# @PARAGRAPHS
+# make_paragraphs ($MAKEFILE, [%TRANSFORM])
+# -----------------------------------------
+# Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
+# paragraphs.
+sub make_paragraphs
+{
+ my ($file, %transform) = @_;
+ $transform{FIRST} = !$transformed_files{$file};
+ $transformed_files{$file} = 1;
+
+ my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
+ my @res;
+
+ while (defined ($_ = shift @lines))
+ {
+ my $paragraph = $_;
+ # If we are a rule, eat as long as we start with a tab.
+ if (/$RULE_PATTERN/smo)
+ {
+ while (defined ($_ = shift @lines) && $_ =~ /^\t/)
+ {
+ $paragraph .= "\n$_";
+ }
+ unshift (@lines, $_);
+ }
+
+ # If we are a comments, eat as much comments as you can.
+ elsif (/$COMMENT_PATTERN/smo)
+ {
+ while (defined ($_ = shift @lines)
+ && $_ =~ /$COMMENT_PATTERN/smo)
+ {
+ $paragraph .= "\n$_";
+ }
+ unshift (@lines, $_);
+ }
+
+ push @res, $paragraph;
+ }
+
+ return @res;
+}
+
+
+
+# ($COMMENT, $VARIABLES, $RULES)
+# file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
+# ------------------------------------------------------------
+# Return contents of a file from $libdir/am, automatically skipping
+# macros or rules which are already known. $IS_AM iff the caller is
+# reading an Automake file (as opposed to the user's Makefile.am).
+sub file_contents_internal
+{
+ my ($is_am, $file, $where, %transform) = @_;
+
+ $where->set ($file);
+
+ my $result_vars = '';
+ my $result_rules = '';
+ my $comment = '';
+ my $spacing = '';
+
+ # The following flags are used to track rules spanning across
+ # multiple paragraphs.
+ my $is_rule = 0; # 1 if we are processing a rule.
+ my $discard_rule = 0; # 1 if the current rule should not be output.
+
+ # We save the conditional stack on entry, and then check to make
+ # sure it is the same on exit. This lets us conditionally include
+ # other files.
+ my @saved_cond_stack = @cond_stack;
+ my $cond = new Automake::Condition (@cond_stack);
+
+ foreach (make_paragraphs ($file, %transform))
+ {
+ # FIXME: no line number available.
+ $where->set ($file);
+
+ # Sanity checks.
+ error $where, "blank line following trailing backslash:\n$_"
+ if /\\$/;
+ error $where, "comment following trailing backslash:\n$_"
+ if /\\#/;
+
+ if (/^$/)
+ {
+ $is_rule = 0;
+ # Stick empty line before the incoming macro or rule.
+ $spacing = "\n";
+ }
+ elsif (/$COMMENT_PATTERN/mso)
+ {
+ $is_rule = 0;
+ # Stick comments before the incoming macro or rule.
+ $comment = "$_\n";
+ }
+
+ # Handle inclusion of other files.
+ elsif (/$INCLUDE_PATTERN/o)
+ {
+ if ($cond != FALSE)
+ {
+ my $file = ($is_am ? "$libdir/am/" : '') . $1;
+ $where->push_context ("'$file' included from here");
+ # N-ary '.=' fails.
+ my ($com, $vars, $rules)
+ = file_contents_internal ($is_am, $file, $where, %transform);
+ $where->pop_context;
+ $comment .= $com;
+ $result_vars .= $vars;
+ $result_rules .= $rules;
+ }
+ }
+
+ # Handling the conditionals.
+ elsif (/$IF_PATTERN/o)
+ {
+ $cond = cond_stack_if ($1, $2, $file);
+ }
+ elsif (/$ELSE_PATTERN/o)
+ {
+ $cond = cond_stack_else ($1, $2, $file);
+ }
+ elsif (/$ENDIF_PATTERN/o)
+ {
+ $cond = cond_stack_endif ($1, $2, $file);
+ }
+
+ # Handling rules.
+ elsif (/$RULE_PATTERN/mso)
+ {
+ $is_rule = 1;
+ $discard_rule = 0;
+ # Separate relationship from optional actions: the first
+ # `new-line tab" not preceded by backslash (continuation
+ # line).
+ my $paragraph = $_;
+ /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
+ my ($relationship, $actions) = ($1, $2 || '');
+
+ # Separate targets from dependencies: the first colon.
+ $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
+ my ($targets, $dependencies) = ($1, $2);
+ # Remove the escaped new lines.
+ # I don't know why, but I have to use a tmp $flat_deps.
+ my $flat_deps = flatten ($dependencies);
+ my @deps = split (' ', $flat_deps);
+
+ foreach (split (' ', $targets))
+ {
+ # FIXME: 1. We are not robust to people defining several targets
+ # at once, only some of them being in %dependencies. The
+ # actions from the targets in %dependencies are usually generated
+ # from the content of %actions, but if some targets in $targets
+ # are not in %dependencies the ELSE branch will output
+ # a rule for all $targets (i.e. the targets which are both
+ # in %dependencies and $targets will have two rules).
+
+ # FIXME: 2. The logic here is not able to output a
+ # multi-paragraph rule several time (e.g. for each condition
+ # it is defined for) because it only knows the first paragraph.
+
+ # FIXME: 3. We are not robust to people defining a subset
+ # of a previously defined "multiple-target" rule. E.g.
+ # 'foo:' after 'foo bar:'.
+
+ # Output only if not in FALSE.
+ if (defined $dependencies{$_} && $cond != FALSE)
+ {
+ depend ($_, @deps);
+ register_action ($_, $actions);
+ }
+ else
+ {
+ # Free-lance dependency. Output the rule for all the
+ # targets instead of one by one.
+ my @undefined_conds =
+ Automake::Rule::define ($targets, $file,
+ $is_am ? RULE_AUTOMAKE : RULE_USER,
+ $cond, $where);
+ for my $undefined_cond (@undefined_conds)
+ {
+ my $condparagraph = $paragraph;
+ $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
+ $result_rules .= "$spacing$comment$condparagraph\n";
+ }
+ if (scalar @undefined_conds == 0)
+ {
+ # Remember to discard next paragraphs
+ # if they belong to this rule.
+ # (but see also FIXME: #2 above.)
+ $discard_rule = 1;
+ }
+ $comment = $spacing = '';
+ last;
+ }
+ }
+ }
+
+ elsif (/$ASSIGNMENT_PATTERN/mso)
+ {
+ my ($var, $type, $val) = ($1, $2, $3);
+ error $where, "variable '$var' with trailing backslash"
+ if /\\$/;
+
+ $is_rule = 0;
+
+ Automake::Variable::define ($var,
+ $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
+ $type, $cond, $val, $comment, $where,
+ VAR_ASIS)
+ if $cond != FALSE;
+
+ $comment = $spacing = '';
+ }
+ else
+ {
+ # This isn't an error; it is probably some tokens which
+ # configure is supposed to replace, such as '@SET-MAKE@',
+ # or some part of a rule cut by an if/endif.
+ if (! $cond->false && ! ($is_rule && $discard_rule))
+ {
+ s/^/$cond->subst_string/gme;
+ $result_rules .= "$spacing$comment$_\n";
+ }
+ $comment = $spacing = '';
+ }
+ }
+
+ error ($where, @cond_stack ?
+ "unterminated conditionals: @cond_stack" :
+ "too many conditionals closed in include file")
+ if "@saved_cond_stack" ne "@cond_stack";
+
+ return ($comment, $result_vars, $result_rules);
+}
+
+
+# $CONTENTS
+# file_contents ($BASENAME, $WHERE, [%TRANSFORM])
+# -----------------------------------------------
+# Return contents of a file from $libdir/am, automatically skipping
+# macros or rules which are already known.
+sub file_contents
+{
+ my ($basename, $where, %transform) = @_;
+ my ($comments, $variables, $rules) =
+ file_contents_internal (1, "$libdir/am/$basename.am", $where,
+ %transform);
+ return "$comments$variables$rules";
+}
+
+
+# @PREFIX
+# am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
+# ----------------------------------------------------
+# Find all variable prefixes that are used for install directories. A
+# prefix 'zar' qualifies iff:
+#
+# * 'zardir' is a variable.
+# * 'zar_PRIMARY' is a variable.
+#
+# As a side effect, it looks for misspellings. It is an error to have
+# a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
+# "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
+# of the same name (with "dir" appended) exists. For instance, if the
+# variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
+# This is to provide a little extra flexibility in those cases which
+# need it.
+sub am_primary_prefixes
+{
+ my ($primary, $can_dist, @prefixes) = @_;
+
+ local $_;
+ my %valid = map { $_ => 0 } @prefixes;
+ $valid{'EXTRA'} = 0;
+ foreach my $var (variables $primary)
+ {
+ # Automake is allowed to define variables that look like primaries
+ # but which aren't. E.g. INSTALL_sh_DATA.
+ # Autoconf can also define variables like INSTALL_DATA, so
+ # ignore all configure variables (at least those which are not
+ # redefined in Makefile.am).
+ # FIXME: We should make sure that these variables are not
+ # conditionally defined (or else adjust the condition below).
+ my $def = $var->def (TRUE);
+ next if $def && $def->owner != VAR_MAKEFILE;
+
+ my $varname = $var->name;
+
+ if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
+ {
+ my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
+ if ($dist ne '' && ! $can_dist)
+ {
+ err_var ($var,
+ "invalid variable '$varname': 'dist' is forbidden");
+ }
+ # Standard directories must be explicitly allowed.
+ elsif (! defined $valid{$X} && exists $standard_prefix{$X})
+ {
+ err_var ($var,
+ "'${X}dir' is not a legitimate directory " .
+ "for '$primary'");
+ }
+ # A not explicitly valid directory is allowed if Xdir is defined.
+ elsif (! defined $valid{$X} &&
+ $var->requires_variables ("'$varname' is used", "${X}dir"))
+ {
+ # Nothing to do. Any error message has been output
+ # by $var->requires_variables.
+ }
+ else
+ {
+ # Ensure all extended prefixes are actually used.
+ $valid{"$base$dist$X"} = 1;
+ }
+ }
+ else
+ {
+ prog_error "unexpected variable name: $varname";
+ }
+ }
+
+ # Return only those which are actually defined.
+ return sort grep { var ($_ . '_' . $primary) } keys %valid;
+}
+
+
+# am_install_var (-OPTION..., file, HOW, where...)
+# ------------------------------------------------
+#
+# Handle 'where_HOW' variable magic. Does all lookups, generates
+# install code, and possibly generates code to define the primary
+# variable. The first argument is the name of the .am file to munge,
+# the second argument is the primary variable (e.g. HEADERS), and all
+# subsequent arguments are possible installation locations.
+#
+# Returns list of [$location, $value] pairs, where
+# $value's are the values in all where_HOW variable, and $location
+# there associated location (the place here their parent variables were
+# defined).
+#
+# FIXME: this should be rewritten to be cleaner. It should be broken
+# up into multiple functions.
+#
+sub am_install_var
+{
+ my (@args) = @_;
+
+ my $do_require = 1;
+ my $can_dist = 0;
+ my $default_dist = 0;
+ while (@args)
+ {
+ if ($args[0] eq '-noextra')
+ {
+ $do_require = 0;
+ }
+ elsif ($args[0] eq '-candist')
+ {
+ $can_dist = 1;
+ }
+ elsif ($args[0] eq '-defaultdist')
+ {
+ $default_dist = 1;
+ $can_dist = 1;
+ }
+ elsif ($args[0] !~ /^-/)
+ {
+ last;
+ }
+ shift (@args);
+ }
+
+ my ($file, $primary, @prefix) = @args;
+
+ # Now that configure substitutions are allowed in where_HOW
+ # variables, it is an error to actually define the primary. We
+ # allow 'JAVA', as it is customarily used to mean the Java
+ # interpreter. This is but one of several Java hacks. Similarly,
+ # 'PYTHON' is customarily used to mean the Python interpreter.
+ reject_var $primary, "'$primary' is an anachronism"
+ unless $primary eq 'JAVA' || $primary eq 'PYTHON';
+
+ # Get the prefixes which are valid and actually used.
+ @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
+
+ # If a primary includes a configure substitution, then the EXTRA_
+ # form is required. Otherwise we can't properly do our job.
+ my $require_extra;
+
+ my @used = ();
+ my @result = ();
+
+ foreach my $X (@prefix)
+ {
+ my $nodir_name = $X;
+ my $one_name = $X . '_' . $primary;
+ my $one_var = var $one_name;
+
+ my $strip_subdir = 1;
+ # If subdir prefix should be preserved, do so.
+ if ($nodir_name =~ /^nobase_/)
+ {
+ $strip_subdir = 0;
+ $nodir_name =~ s/^nobase_//;
+ }
+
+ # If files should be distributed, do so.
+ my $dist_p = 0;
+ if ($can_dist)
+ {
+ $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
+ || (! $default_dist && $nodir_name =~ /^dist_/));
+ $nodir_name =~ s/^(dist|nodist)_//;
+ }
+
+
+ # Use the location of the currently processed variable.
+ # We are not processing a particular condition, so pick the first
+ # available.
+ my $tmpcond = $one_var->conditions->one_cond;
+ my $where = $one_var->rdef ($tmpcond)->location->clone;
+
+ # Append actual contents of where_PRIMARY variable to
+ # @result, skipping @substitutions@.
+ foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
+ {
+ my ($loc, $value) = @$locvals;
+ # Skip configure substitutions.
+ if ($value =~ /^\@.*\@$/)
+ {
+ if ($nodir_name eq 'EXTRA')
+ {
+ error ($where,
+ "'$one_name' contains configure substitution, "
+ . "but shouldn't");
+ }
+ # Check here to make sure variables defined in
+ # configure.ac do not imply that EXTRA_PRIMARY
+ # must be defined.
+ elsif (! defined $configure_vars{$one_name})
+ {
+ $require_extra = $one_name
+ if $do_require;
+ }
+ }
+ else
+ {
+ # Strip any $(EXEEXT) suffix the user might have added,
+ # or this will confuse handle_source_transform() and
+ # check_canonical_spelling().
+ # We'll add $(EXEEXT) back later anyway.
+ # Do it here rather than in handle_programs so the
+ # uniquifying at the end of this function works.
+ ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
+ if $primary eq 'PROGRAMS';
+
+ push (@result, $locvals);
+ }
+ }
+ # A blatant hack: we rewrite each _PROGRAMS primary to include
+ # EXEEXT.
+ append_exeext { 1 } $one_name
+ if $primary eq 'PROGRAMS';
+ # "EXTRA" shouldn't be used when generating clean targets,
+ # all, or install targets. We used to warn if EXTRA_FOO was
+ # defined uselessly, but this was annoying.
+ next
+ if $nodir_name eq 'EXTRA';
+
+ if ($nodir_name eq 'check')
+ {
+ push (@check, '$(' . $one_name . ')');
+ }
+ else
+ {
+ push (@used, '$(' . $one_name . ')');
+ }
+
+ # Is this to be installed?
+ my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
+
+ # If so, with install-exec? (or install-data?).
+ my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
+
+ my $check_options_p = $install_p && !! option 'std-options';
+
+ # Use the location of the currently processed variable as context.
+ $where->push_context ("while processing '$one_name'");
+
+ # The variable containing all files to distribute.
+ my $distvar = "\$($one_name)";
+ $distvar = shadow_unconditionally ($one_name, $where)
+ if ($dist_p && $one_var->has_conditional_contents);
+
+ # Singular form of $PRIMARY.
+ (my $one_primary = $primary) =~ s/S$//;
+ $output_rules .= file_contents ($file, $where,
+ PRIMARY => $primary,
+ ONE_PRIMARY => $one_primary,
+ DIR => $X,
+ NDIR => $nodir_name,
+ BASE => $strip_subdir,
+ EXEC => $exec_p,
+ INSTALL => $install_p,
+ DIST => $dist_p,
+ DISTVAR => $distvar,
+ 'CK-OPTS' => $check_options_p);
+ }
+
+ # The JAVA variable is used as the name of the Java interpreter.
+ # The PYTHON variable is used as the name of the Python interpreter.
+ if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
+ {
+ # Define it.
+ define_pretty_variable ($primary, TRUE, INTERNAL, @used);
+ $output_vars .= "\n";
+ }
+
+ err_var ($require_extra,
+ "'$require_extra' contains configure substitution,\n"
+ . "but 'EXTRA_$primary' not defined")
+ if ($require_extra && ! var ('EXTRA_' . $primary));
+
+ # Push here because PRIMARY might be configure time determined.
+ push (@all, '$(' . $primary . ')')
+ if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
+
+ # Make the result unique. This lets the user use conditionals in
+ # a natural way, but still lets us program lazily -- we don't have
+ # to worry about handling a particular object more than once.
+ # We will keep only one location per object.
+ my %result = ();
+ for my $pair (@result)
+ {
+ my ($loc, $val) = @$pair;
+ $result{$val} = $loc;
+ }
+ my @l = sort keys %result;
+ return map { [$result{$_}->clone, $_] } @l;
+}
+
+
+################################################################
+
+# Each key in this hash is the name of a directory holding a
+# Makefile.in. These variables are local to 'is_make_dir'.
+my %make_dirs = ();
+my $make_dirs_set = 0;
+
+# is_make_dir ($DIRECTORY)
+# ------------------------
+sub is_make_dir
+{
+ my ($dir) = @_;
+ if (! $make_dirs_set)
+ {
+ foreach my $iter (@configure_input_files)
+ {
+ $make_dirs{dirname ($iter)} = 1;
+ }
+ # We also want to notice Makefile.in's.
+ foreach my $iter (@other_input_files)
+ {
+ if ($iter =~ /Makefile\.in$/)
+ {
+ $make_dirs{dirname ($iter)} = 1;
+ }
+ }
+ $make_dirs_set = 1;
+ }
+ return defined $make_dirs{$dir};
+}
+
+################################################################
+
+# Find the aux dir. This should match the algorithm used by
+# ./configure. (See the Autoconf documentation for for
+# AC_CONFIG_AUX_DIR.)
+sub locate_aux_dir ()
+{
+ if (! $config_aux_dir_set_in_configure_ac)
+ {
+ # The default auxiliary directory is the first
+ # of ., .., or ../.. that contains install-sh.
+ # Assume . if install-sh doesn't exist yet.
+ for my $dir (qw (. .. ../..))
+ {
+ if (-f "$dir/install-sh")
+ {
+ $config_aux_dir = $dir;
+ last;
+ }
+ }
+ $config_aux_dir = '.' unless $config_aux_dir;
+ }
+ # Avoid unsightly '/.'s.
+ $am_config_aux_dir =
+ '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
+ $am_config_aux_dir =~ s,/*$,,;
+}
+
+
+# push_required_file ($DIR, $FILE, $FULLFILE)
+# -------------------------------------------
+# Push the given file onto DIST_COMMON.
+sub push_required_file
+{
+ my ($dir, $file, $fullfile) = @_;
+
+ # If the file to be distributed is in the same directory of the
+ # currently processed Makefile.am, then we want to distribute it
+ # from this same Makefile.am.
+ if ($dir eq $relative_dir)
+ {
+ push_dist_common ($file);
+ }
+ # This is needed to allow a construct in a non-top-level Makefile.am
+ # to require a file in the build-aux directory (see at least the test
+ # script 'test-driver-is-distributed.sh'). This is related to the
+ # automake bug#9546. Note that the use of $config_aux_dir instead
+ # of $am_config_aux_dir here is deliberate and necessary.
+ elsif ($dir eq $config_aux_dir)
+ {
+ push_dist_common ("$am_config_aux_dir/$file");
+ }
+ # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
+ # We probably need some refactoring of this function and its callers,
+ # to have a more explicit and systematic handling of all the special
+ # cases; but, since there are only two of them, this is low-priority
+ # ATM.
+ elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
+ {
+ # Avoid unsightly '/.'s.
+ my $am_config_libobj_dir =
+ '$(top_srcdir)' .
+ ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
+ $am_config_libobj_dir =~ s|/*$||;
+ push_dist_common ("$am_config_libobj_dir/$file");
+ }
+ elsif ($relative_dir eq '.' && ! is_make_dir ($dir))
+ {
+ # If we are doing the topmost directory, and the file is in a
+ # subdir which does not have a Makefile, then we distribute it
+ # here.
+
+ # If a required file is above the source tree, it is important
+ # to prefix it with '$(srcdir)' so that no VPATH search is
+ # performed. Otherwise problems occur with Make implementations
+ # that rewrite and simplify rules whose dependencies are found in a
+ # VPATH location. Here is an example with OSF1/Tru64 Make.
+ #
+ # % cat Makefile
+ # VPATH = sub
+ # distdir: ../a
+ # echo ../a
+ # % ls
+ # Makefile a
+ # % make
+ # echo a
+ # a
+ #
+ # Dependency '../a' was found in 'sub/../a', but this make
+ # implementation simplified it as 'a'. (Note that the sub/
+ # directory does not even exist.)
+ #
+ # This kind of VPATH rewriting seems hard to cancel. The
+ # distdir.am hack against VPATH rewriting works only when no
+ # simplification is done, i.e., for dependencies which are in
+ # subdirectories, not in enclosing directories. Hence, in
+ # the latter case we use a full path to make sure no VPATH
+ # search occurs.
+ $fullfile = '$(srcdir)/' . $fullfile
+ if $dir =~ m,^\.\.(?:$|/),;
+
+ push_dist_common ($fullfile);
+ }
+ else
+ {
+ prog_error "a Makefile in relative directory $relative_dir " .
+ "can't add files in directory $dir to DIST_COMMON";
+ }
+}
+
+
+# If a file name appears as a key in this hash, then it has already
+# been checked for. This allows us not to report the same error more
+# than once.
+my %required_file_not_found = ();
+
+# required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
+# -------------------------------------------------------
+# Verify that the file must exist in $DIRECTORY, or install it.
+sub required_file_check_or_copy
+{
+ my ($where, $dir, $file) = @_;
+
+ my $fullfile = "$dir/$file";
+ my $found_it = 0;
+ my $dangling_sym = 0;
+
+ if (-l $fullfile && ! -f $fullfile)
+ {
+ $dangling_sym = 1;
+ }
+ elsif (dir_has_case_matching_file ($dir, $file))
+ {
+ $found_it = 1;
+ }
+
+ # '--force-missing' only has an effect if '--add-missing' is
+ # specified.
+ return
+ if $found_it && (! $add_missing || ! $force_missing);
+
+ # If we've already looked for it, we're done. You might
+ # wonder why we don't do this before searching for the
+ # file. If we do that, then something like
+ # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
+ # DIST_COMMON.
+ if (! $found_it)
+ {
+ return if defined $required_file_not_found{$fullfile};
+ $required_file_not_found{$fullfile} = 1;
+ }
+ if ($dangling_sym && $add_missing)
+ {
+ unlink ($fullfile);
+ }
+
+ my $trailer = '';
+ my $trailer2 = '';
+ my $suppress = 0;
+
+ # Only install missing files according to our desired
+ # strictness level.
+ my $message = "required file '$fullfile' not found";
+ if ($add_missing)
+ {
+ if (-f "$libdir/$file")
+ {
+ $suppress = 1;
+
+ # Install the missing file. Symlink if we
+ # can, copy if we must. Note: delete the file
+ # first, in case it is a dangling symlink.
+ $message = "installing '$fullfile'";
+
+ # The license file should not be volatile.
+ if ($file eq "COPYING")
+ {
+ $message .= " using GNU General Public License v3 file";
+ $trailer2 = "\n Consider adding the COPYING file"
+ . " to the version control system"
+ . "\n for your code, to avoid questions"
+ . " about which license your project uses";
+ }
+
+ # Windows Perl will hang if we try to delete a
+ # file that doesn't exist.
+ unlink ($fullfile) if -f $fullfile;
+ if ($symlink_exists && ! $copy_missing)
+ {
+ if (! symlink ("$libdir/$file", $fullfile)
+ || ! -e $fullfile)
+ {
+ $suppress = 0;
+ $trailer = "; error while making link: $!";
+ }
+ }
+ elsif (system ('cp', "$libdir/$file", $fullfile))
+ {
+ $suppress = 0;
+ $trailer = "\n error while copying";
+ }
+ set_dir_cache_file ($dir, $file);
+ }
+ }
+ else
+ {
+ $trailer = "\n 'automake --add-missing' can install '$file'"
+ if -f "$libdir/$file";
+ }
+
+ # If --force-missing was specified, and we have
+ # actually found the file, then do nothing.
+ return
+ if $found_it && $force_missing;
+
+ # If we couldn't install the file, but it is a target in
+ # the Makefile, don't print anything. This allows files
+ # like README, AUTHORS, or THANKS to be generated.
+ return
+ if !$suppress && rule $file;
+
+ msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
+}
+
+
+# require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
+# ---------------------------------------------------------------------
+# Verify that the file must exist in $DIRECTORY, or install it.
+# $MYSTRICT is the strictness level at which this file becomes required.
+# Worker threads may queue up the action to be serialized by the master,
+# if $QUEUE is true
+sub require_file_internal
+{
+ my ($where, $mystrict, $dir, $queue, @files) = @_;
+
+ return
+ unless $strictness >= $mystrict;
+
+ foreach my $file (@files)
+ {
+ push_required_file ($dir, $file, "$dir/$file");
+ if ($queue)
+ {
+ queue_required_file_check_or_copy ($required_conf_file_queue,
+ QUEUE_CONF_FILE, $relative_dir,
+ $where, $mystrict, @files);
+ }
+ else
+ {
+ required_file_check_or_copy ($where, $dir, $file);
+ }
+ }
+}
+
+# require_file ($WHERE, $MYSTRICT, @FILES)
+# ----------------------------------------
+sub require_file
+{
+ my ($where, $mystrict, @files) = @_;
+ require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
+}
+
+# require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
+# ----------------------------------------------------------
+sub require_file_with_macro
+{
+ my ($cond, $macro, $mystrict, @files) = @_;
+ $macro = rvar ($macro) unless ref $macro;
+ require_file ($macro->rdef ($cond)->location, $mystrict, @files);
+}
+
+# require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
+# ---------------------------------------------------------------
+# Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
+# must be in that directory. Otherwise expect it in the current directory.
+sub require_libsource_with_macro
+{
+ my ($cond, $macro, $mystrict, @files) = @_;
+ $macro = rvar ($macro) unless ref $macro;
+ if ($config_libobj_dir)
+ {
+ require_file_internal ($macro->rdef ($cond)->location, $mystrict,
+ $config_libobj_dir, 0, @files);
+ }
+ else
+ {
+ require_file ($macro->rdef ($cond)->location, $mystrict, @files);
+ }
+}
+
+# queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
+# $MYSTRICT, @FILES)
+# --------------------------------------------------------------
+sub queue_required_file_check_or_copy
+{
+ my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
+ my @serial_loc;
+ if (ref $where)
+ {
+ @serial_loc = (QUEUE_LOCATION, $where->serialize ());
+ }
+ else
+ {
+ @serial_loc = (QUEUE_STRING, $where);
+ }
+ $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
+}
+
+# require_queued_file_check_or_copy ($QUEUE)
+# ------------------------------------------
+sub require_queued_file_check_or_copy
+{
+ my ($queue) = @_;
+ my $where;
+ my $dir = $queue->dequeue ();
+ my $loc_key = $queue->dequeue ();
+ if ($loc_key eq QUEUE_LOCATION)
+ {
+ $where = Automake::Location::deserialize ($queue);
+ }
+ elsif ($loc_key eq QUEUE_STRING)
+ {
+ $where = $queue->dequeue ();
+ }
+ else
+ {
+ prog_error "unexpected key $loc_key";
+ }
+ my $mystrict = $queue->dequeue ();
+ my $nfiles = $queue->dequeue ();
+ my @files;
+ push @files, $queue->dequeue ()
+ foreach (1 .. $nfiles);
+ return
+ unless $strictness >= $mystrict;
+ foreach my $file (@files)
+ {
+ required_file_check_or_copy ($where, $config_aux_dir, $file);
+ }
+}
+
+# require_conf_file ($WHERE, $MYSTRICT, @FILES)
+# ---------------------------------------------
+# Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
+sub require_conf_file
+{
+ my ($where, $mystrict, @files) = @_;
+ my $queue = defined $required_conf_file_queue ? 1 : 0;
+ require_file_internal ($where, $mystrict, $config_aux_dir,
+ $queue, @files);
+}
+
+
+# require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
+# ---------------------------------------------------------------
+sub require_conf_file_with_macro
+{
+ my ($cond, $macro, $mystrict, @files) = @_;
+ require_conf_file (rvar ($macro)->rdef ($cond)->location,
+ $mystrict, @files);
+}
+
+################################################################
+
+# require_build_directory ($DIRECTORY)
+# ------------------------------------
+# Emit rules to create $DIRECTORY if needed, and return
+# the file that any target requiring this directory should be made
+# dependent upon.
+# We don't want to emit the rule twice, and want to reuse it
+# for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
+sub require_build_directory
+{
+ my $directory = shift;
+
+ return $directory_map{$directory} if exists $directory_map{$directory};
+
+ my $cdir = File::Spec->canonpath ($directory);
+
+ if (exists $directory_map{$cdir})
+ {
+ my $stamp = $directory_map{$cdir};
+ $directory_map{$directory} = $stamp;
+ return $stamp;
+ }
+
+ my $dirstamp = "$cdir/\$(am__dirstamp)";
+
+ $directory_map{$directory} = $dirstamp;
+ $directory_map{$cdir} = $dirstamp;
+
+ # Set a variable for the dirstamp basename.
+ define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
+ '$(am__leading_dot)dirstamp');
+
+ # Directory must be removed by 'make distclean'.
+ $clean_files{$dirstamp} = DIST_CLEAN;
+
+ $output_rules .= ("$dirstamp:\n"
+ . "\t\@\$(MKDIR_P) $directory\n"
+ . "\t\@: > $dirstamp\n");
+
+ return $dirstamp;
+}
+
+# require_build_directory_maybe ($FILE)
+# -------------------------------------
+# If $FILE lies in a subdirectory, emit a rule to create this
+# directory and return the file that $FILE should be made
+# dependent upon. Otherwise, just return the empty string.
+sub require_build_directory_maybe
+{
+ my $file = shift;
+ my $directory = dirname ($file);
+
+ if ($directory ne '.')
+ {
+ return require_build_directory ($directory);
+ }
+ else
+ {
+ return '';
+ }
+}
+
+################################################################
+
+# Push a list of files onto '@dist_common'.
+sub push_dist_common
+{
+ prog_error "push_dist_common run after handle_dist"
+ if $handle_dist_run;
+ Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
+ '', INTERNAL, VAR_PRETTY);
+}
+
+
+################################################################
+
+# generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
+# ----------------------------------------------
+# Generate a Makefile.in given the name of the corresponding Makefile and
+# the name of the file output by config.status.
+sub generate_makefile
+{
+ my ($makefile_am, $makefile_in) = @_;
+
+ # Reset all the Makefile.am related variables.
+ initialize_per_input;
+
+ # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
+ # warnings for this file. So hold any warning issued before
+ # we have processed AUTOMAKE_OPTIONS.
+ buffer_messages ('warning');
+
+ # $OUTPUT is encoded. If it contains a ":" then the first element
+ # is the real output file, and all remaining elements are input
+ # files. We don't scan or otherwise deal with these input files,
+ # other than to mark them as dependencies. See the subroutine
+ # 'scan_autoconf_files' for details.
+ my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
+
+ $relative_dir = dirname ($makefile);
+
+ read_main_am_file ($makefile_am, $makefile_in);
+ if (not handle_options)
+ {
+ # Process buffered warnings.
+ flush_messages;
+ # Fatal error. Just return, so we can continue with next file.
+ return;
+ }
+ # Process buffered warnings.
+ flush_messages;
+
+ # There are a few install-related variables that you should not define.
+ foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
+ {
+ my $v = var $var;
+ if ($v)
+ {
+ my $def = $v->def (TRUE);
+ prog_error "$var not defined in condition TRUE"
+ unless $def;
+ reject_var $var, "'$var' should not be defined"
+ if $def->owner != VAR_AUTOMAKE;
+ }
+ }
+
+ # Catch some obsolete variables.
+ msg_var ('obsolete', 'INCLUDES',
+ "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
+ if var ('INCLUDES');
+
+ # Must do this after reading .am file.
+ define_variable ('subdir', $relative_dir, INTERNAL);
+
+ # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
+ # recursive rules are enabled.
+ define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
+ if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
+
+ # Check first, because we might modify some state.
+ check_gnu_standards;
+ check_gnits_standards;
+
+ handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
+ handle_gettext;
+ handle_libraries;
+ handle_ltlibraries;
+ handle_programs;
+ handle_scripts;
+
+ handle_silent;
+
+ # These must be run after all the sources are scanned. They use
+ # variables defined by handle_libraries(), handle_ltlibraries(),
+ # or handle_programs().
+ handle_compile;
+ handle_languages;
+ handle_libtool;
+
+ # Variables used by distdir.am and tags.am.
+ define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
+ if (! option 'no-dist')
+ {
+ define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
+ }
+
+ handle_texinfo;
+ handle_emacs_lisp;
+ handle_python;
+ handle_java;
+ handle_man_pages;
+ handle_data;
+ handle_headers;
+ handle_subdirs;
+ handle_user_recursion;
+ handle_tags;
+ handle_minor_options;
+ # Must come after handle_programs so that %known_programs is up-to-date.
+ handle_tests;
+
+ # This must come after most other rules.
+ handle_dist;
+
+ handle_footer;
+ do_check_merge_target;
+ handle_all ($makefile);
+
+ # FIXME: Gross!
+ if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
+ {
+ $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
+ }
+ if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
+ {
+ $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
+ }
+
+ handle_install;
+ handle_clean ($makefile);
+ handle_factored_dependencies;
+
+ # Comes last, because all the above procedures may have
+ # defined or overridden variables.
+ $output_vars .= output_variables;
+
+ check_typos;
+
+ if ($exit_code != 0)
+ {
+ verb "not writing $makefile_in because of earlier errors";
+ return;
+ }
+
+ my $am_relative_dir = dirname ($makefile_am);
+ mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
+
+ # We make sure that 'all:' is the first target.
+ my $output =
+ "$output_vars$output_all$output_header$output_rules$output_trailer";
+
+ # Decide whether we must update the output file or not.
+ # We have to update in the following situations.
+ # * $force_generation is set.
+ # * any of the output dependencies is younger than the output
+ # * the contents of the output is different (this can happen
+ # if the project has been populated with a file listed in
+ # @common_files since the last run).
+ # Output's dependencies are split in two sets:
+ # * dependencies which are also configure dependencies
+ # These do not change between each Makefile.am
+ # * other dependencies, specific to the Makefile.am being processed
+ # (such as the Makefile.am itself, or any Makefile fragment
+ # it includes).
+ my $timestamp = mtime $makefile_in;
+ if (! $force_generation
+ && $configure_deps_greatest_timestamp < $timestamp
+ && $output_deps_greatest_timestamp < $timestamp
+ && $output eq contents ($makefile_in))
+ {
+ verb "$makefile_in unchanged";
+ # No need to update.
+ return;
+ }
+
+ if (-e $makefile_in)
+ {
+ unlink ($makefile_in)
+ or fatal "cannot remove $makefile_in: $!";
+ }
+
+ my $gm_file = new Automake::XFile "> $makefile_in";
+ verb "creating $makefile_in";
+ print $gm_file $output;
+}
+
+
+################################################################
+
+
+# Helper function for usage().
+sub print_autodist_files
+{
+ # NOTE: we need to call our 'uniq' function with the leading '&'
+ # here, because otherwise perl complains that "Unquoted string
+ # 'uniq' may clash with future reserved word".
+ my @lcomm = sort (&uniq (@_));
+
+ my @four;
+ format USAGE_FORMAT =
+ @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
+ $four[0], $four[1], $four[2], $four[3]
+.
+ local $~ = "USAGE_FORMAT";
+
+ my $cols = 4;
+ my $rows = int(@lcomm / $cols);
+ my $rest = @lcomm % $cols;
+
+ if ($rest)
+ {
+ $rows++;
+ }
+ else
+ {
+ $rest = $cols;
+ }
+
+ for (my $y = 0; $y < $rows; $y++)
+ {
+ @four = ("", "", "", "");
+ for (my $x = 0; $x < $cols; $x++)
+ {
+ last if $y + 1 == $rows && $x == $rest;
+
+ my $idx = (($x > $rest)
+ ? ($rows * $rest + ($rows - 1) * ($x - $rest))
+ : ($rows * $x));
+
+ $idx += $y;
+ $four[$x] = $lcomm[$idx];
+ }
+ write;
+ }
+}
+
+
+sub usage ()
+{
+ print "Usage: $0 [OPTION]... [Makefile]...
+
+Generate Makefile.in for configure from Makefile.am.
+
+Operation modes:
+ --help print this help, then exit
+ --version print version number, then exit
+ -v, --verbose verbosely list files processed
+ --no-force only update Makefile.in's that are out of date
+ -W, --warnings=CATEGORY report the warnings falling in CATEGORY
+
+Dependency tracking:
+ -i, --ignore-deps disable dependency tracking code
+ --include-deps enable dependency tracking code
+
+Flavors:
+ --foreign set strictness to foreign
+ --gnits set strictness to gnits
+ --gnu set strictness to gnu
+
+Library files:
+ -a, --add-missing add missing standard files to package
+ --libdir=DIR set directory storing library files
+ --print-libdir print directory storing library files
+ -c, --copy with -a, copy missing files (default is symlink)
+ -f, --force-missing force update of standard files
+
+";
+ Automake::ChannelDefs::usage;
+
+ print "\nFiles automatically distributed if found " .
+ "(always):\n";
+ print_autodist_files @common_files;
+ print "\nFiles automatically distributed if found " .
+ "(under certain conditions):\n";
+ print_autodist_files @common_sometimes;
+
+ print '
+Report bugs to <@PACKAGE_BUGREPORT@>.
+GNU Automake home page: <@PACKAGE_URL@>.
+General help using GNU software: <http://www.gnu.org/gethelp/>.
+';
+
+ # --help always returns 0 per GNU standards.
+ exit 0;
+}
+
+
+sub version ()
+{
+ print <<EOF;
+automake (GNU $PACKAGE) $VERSION
+Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
+License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law.
+
+Written by Tom Tromey <tromey\@redhat.com>
+ and Alexandre Duret-Lutz <adl\@gnu.org>.
+EOF
+ # --version always returns 0 per GNU standards.
+ exit 0;
+}
+
+################################################################
+
+# Parse command line.
+sub parse_arguments ()
+{
+ my $strict = 'gnu';
+ my $ignore_deps = 0;
+ my @warnings = ();
+
+ my %cli_options =
+ (
+ 'version' => \&version,
+ 'help' => \&usage,
+ 'libdir=s' => \$libdir,
+ 'print-libdir' => sub { print "$libdir\n"; exit 0; },
+ 'gnu' => sub { $strict = 'gnu'; },
+ 'gnits' => sub { $strict = 'gnits'; },
+ 'foreign' => sub { $strict = 'foreign'; },
+ 'include-deps' => sub { $ignore_deps = 0; },
+ 'i|ignore-deps' => sub { $ignore_deps = 1; },
+ 'no-force' => sub { $force_generation = 0; },
+ 'f|force-missing' => \$force_missing,
+ 'a|add-missing' => \$add_missing,
+ 'c|copy' => \$copy_missing,
+ 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
+ 'W|warnings=s' => \@warnings,
+ );
+
+ use Automake::Getopt ();
+ Automake::Getopt::parse_options %cli_options;
+
+ set_strictness ($strict);
+ my $cli_where = new Automake::Location;
+ set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
+ for my $warning (@warnings)
+ {
+ parse_warnings ('-W', $warning);
+ }
+
+ return unless @ARGV;
+
+ my $errspec = 0;
+ foreach my $arg (@ARGV)
+ {
+ fatal ("empty argument\nTry '$0 --help' for more information")
+ if ($arg eq '');
+
+ # Handle $local:$input syntax.
+ my ($local, @rest) = split (/:/, $arg);
+ @rest = ("$local.in",) unless @rest;
+ my $input = locate_am @rest;
+ if ($input)
+ {
+ push @input_files, $input;
+ $output_files{$input} = join (':', ($local, @rest));
+ }
+ else
+ {
+ error "no Automake input file found for '$arg'";
+ $errspec = 1;
+ }
+ }
+ fatal "no input file found among supplied arguments"
+ if $errspec && ! @input_files;
+}
+
+
+# handle_makefile ($MAKEFILE)
+# ---------------------------
+sub handle_makefile
+{
+ my ($file) = @_;
+ ($am_file = $file) =~ s/\.in$//;
+ if (! -f ($am_file . '.am'))
+ {
+ error "'$am_file.am' does not exist";
+ }
+ else
+ {
+ # Any warning setting now local to this Makefile.am.
+ dup_channel_setup;
+
+ generate_makefile ($am_file . '.am', $file);
+
+ # Back out any warning setting.
+ drop_channel_setup;
+ }
+}
+
+# Deal with all makefiles, without threads.
+sub handle_makefiles_serial ()
+{
+ foreach my $file (@input_files)
+ {
+ handle_makefile ($file);
+ }
+}
+
+# Logic for deciding how many worker threads to use.
+sub get_number_of_threads ()
+{
+ my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
+
+ $nthreads = 0
+ unless $nthreads =~ /^[0-9]+$/;
+
+ # It doesn't make sense to use more threads than makefiles,
+ my $max_threads = @input_files;
+
+ if ($nthreads > $max_threads)
+ {
+ $nthreads = $max_threads;
+ }
+ return $nthreads;
+}
+
+# handle_makefiles_threaded ($NTHREADS)
+# -------------------------------------
+# Deal with all makefiles, using threads. The general strategy is to
+# spawn NTHREADS worker threads, dispatch makefiles to them, and let the
+# worker threads push back everything that needs serialization:
+# * warning and (normal) error messages, for stable stderr output
+# order and content (avoiding duplicates, for example),
+# * races when installing aux files (and respective messages),
+# * races when collecting aux files for distribution.
+#
+# The latter requires that the makefile that deals with the aux dir
+# files be handled last, done by the master thread.
+sub handle_makefiles_threaded
+{
+ my ($nthreads) = @_;
+
+ # The file queue distributes all makefiles, the message queues
+ # collect all serializations needed for respective files.
+ my $file_queue = Thread::Queue->new;
+ my %msg_queues;
+ foreach my $file (@input_files)
+ {
+ $msg_queues{$file} = Thread::Queue->new;
+ }
+
+ verb "spawning $nthreads worker threads";
+ my @threads = (1 .. $nthreads);
+ foreach my $t (@threads)
+ {
+ $t = threads->new (sub
+ {
+ while (my $file = $file_queue->dequeue)
+ {
+ verb "handling $file";
+ my $queue = $msg_queues{$file};
+ setup_channel_queue ($queue, QUEUE_MESSAGE);
+ $required_conf_file_queue = $queue;
+ handle_makefile ($file);
+ $queue->enqueue (undef);
+ setup_channel_queue (undef, undef);
+ $required_conf_file_queue = undef;
+ }
+ return $exit_code;
+ });
+ }
+
+ # Queue all makefiles.
+ verb "queuing " . @input_files . " input files";
+ $file_queue->enqueue (@input_files, (undef) x @threads);
+
+ # Collect and process serializations.
+ foreach my $file (@input_files)
+ {
+ verb "dequeuing messages for " . $file;
+ reset_local_duplicates ();
+ my $queue = $msg_queues{$file};
+ while (my $key = $queue->dequeue)
+ {
+ if ($key eq QUEUE_MESSAGE)
+ {
+ pop_channel_queue ($queue);
+ }
+ elsif ($key eq QUEUE_CONF_FILE)
+ {
+ require_queued_file_check_or_copy ($queue);
+ }
+ else
+ {
+ prog_error "unexpected key $key";
+ }
+ }
+ }
+
+ foreach my $t (@threads)
+ {
+ my @exit_thread = $t->join;
+ $exit_code = $exit_thread[0]
+ if ($exit_thread[0] > $exit_code);
+ }
+}
+
+################################################################
+
+# Parse the WARNINGS environment variable.
+parse_WARNINGS;
+
+# Parse command line.
+parse_arguments;
+
+$configure_ac = require_configure_ac;
+
+# Do configure.ac scan only once.
+scan_autoconf_files;
+
+if (! @input_files)
+ {
+ my $msg = '';
+ $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
+ if -f 'Makefile.am';
+ fatal ("no 'Makefile.am' found for any configure output$msg");
+ }
+
+my $nthreads = get_number_of_threads ();
+
+if ($perl_threads && $nthreads >= 1)
+ {
+ handle_makefiles_threaded ($nthreads);
+ }
+else
+ {
+ handle_makefiles_serial ();
+ }
+
+exit $exit_code;
+
+
+### Setup "GNU" style for perl-mode and cperl-mode.
+## Local Variables:
+## perl-indent-level: 2
+## perl-continued-statement-offset: 2
+## perl-continued-brace-offset: 0
+## perl-brace-offset: 0
+## perl-brace-imaginary-offset: 0
+## perl-label-offset: -2
+## cperl-indent-level: 2
+## cperl-brace-offset: 0
+## cperl-continued-brace-offset: 0
+## cperl-label-offset: -2
+## cperl-extra-newline-before-brace: t
+## cperl-merge-trailing-else: nil
+## cperl-continued-statement-offset: 2
+## End:
projects / platform / upstream / automake.git / commitdiff