5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994-2012 Free Software Foundation, Inc.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2, or (at your option)
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program. If not, see <http://www.gnu.org/licenses/>.
24 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
25 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
26 # Alexandre Duret-Lutz <adl@gnu.org>.
32 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
33 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
35 # Override SHELL. This is required on DJGPP so that system() uses
36 # bash, not COMMAND.COM which doesn't quote arguments properly.
37 # Other systems aren't expected to use $SHELL when Automake
38 # runs, but it should be safe to drop the "if DJGPP" guard if
39 # it turns up other systems need the same thing. After all,
40 # if SHELL is used, ./configure's SHELL is always better than
41 # the user's SHELL (which may be something like tcsh).
42 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
46 Class::Struct::struct (
47 # Short name of the language (c, f77...).
49 # Nice name of the language (C, Fortran 77...).
52 # List of configure variables which must be defined.
55 # 'pure' is '1' or ''. A 'pure' language is one where, if
56 # all the files in a directory are of that language, then we
57 # do not require the C compiler or any code to call it.
62 # Name of the compiling variable (COMPILE).
64 # Content of the compiling variable.
66 # Flag to require compilation without linking (-c).
67 'compile_flag' => "\$",
69 # A subroutine to compute a list of possible extensions of
70 # the product given the input extensions.
71 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
72 'output_extensions' => "\$",
73 # A list of flag variables used in 'compile'.
77 # Any tag to pass to libtool while compiling.
78 'libtool_tag' => "\$",
80 # The file to use when generating rules for this language.
81 # The default is 'depend2'.
84 # Name of the linking variable (LINK).
86 # Content of the linking variable.
89 # Name of the compiler variable (CC).
92 # Name of the linker variable (LD).
94 # Content of the linker variable ($(CC)).
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
104 '_target_hook' => "\$",
106 # If TRUE, nodist_ sources will be compiled using specific rules
107 # (i.e. not inference rules). The default is FALSE.
108 'nodist_specific' => "\$");
114 if (defined $self->_finish)
116 &{$self->_finish} (@_);
120 sub target_hook ($$$$%)
123 if (defined $self->_target_hook)
125 &{$self->_target_hook} (@_);
132 use Automake::Config;
139 require Thread::Queue;
140 import Thread::Queue;
143 use Automake::General;
145 use Automake::Channels;
146 use Automake::ChannelDefs;
147 use Automake::Configure_ac;
148 use Automake::FileUtils;
149 use Automake::Location;
150 use Automake::Condition qw/TRUE FALSE/;
151 use Automake::DisjConditions;
152 use Automake::Options;
153 use Automake::Variable;
154 use Automake::VarDef;
156 use Automake::RuleDef;
157 use Automake::Wrap 'makefile_wrap';
166 # Some regular expressions. One reason to put them here is that it
167 # makes indentation work better in Emacs.
169 # Writing singled-quoted-$-terminated regexes is a pain because
170 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
171 # by a closing quote. Letting perl-mode think the quote is not closed
172 # leads to all sort of misindentations. On the other hand, defining
173 # regexes as double-quoted strings is far less readable. So usually
176 # $REGEX = '^regex_value' . "\$";
178 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
179 my $WHITE_PATTERN = '^\s*' . "\$";
180 my $COMMENT_PATTERN = '^#';
181 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
182 # A rule has three parts: a list of targets, a list of dependencies,
183 # and optionally actions.
185 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
187 # Only recognize leading spaces, not leading tabs. If we recognize
188 # leading tabs here then we need to make the reader smarter, because
189 # otherwise it will think rules like 'foo=bar; \' are errors.
190 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
191 # This pattern recognizes a Gnits version id and sets $1 if the
192 # release is an alpha release. We also allow a suffix which can be
193 # used to extend the version number with a "fork" identifier.
194 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
196 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
198 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
200 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
201 my $PATH_PATTERN = '(\w|[+/.-])+';
202 # This will pass through anything not of the prescribed form.
203 my $INCLUDE_PATTERN = ('^include\s+'
204 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
205 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
206 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
208 # Directories installed during 'install-exec' phase.
209 my $EXEC_DIR_PATTERN =
210 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
212 # Values for AC_CANONICAL_*
213 use constant AC_CANONICAL_BUILD => 1;
214 use constant AC_CANONICAL_HOST => 2;
215 use constant AC_CANONICAL_TARGET => 3;
217 # Values indicating when something should be cleaned.
218 use constant MOSTLY_CLEAN => 0;
219 use constant CLEAN => 1;
220 use constant DIST_CLEAN => 2;
221 use constant MAINTAINER_CLEAN => 3;
224 my @libtool_files = qw(ltmain.sh config.guess config.sub);
225 # ltconfig appears here for compatibility with old versions of libtool.
226 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
228 # Commonly found files we look for and automatically include in
231 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
232 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
233 ar-lib compile config.guess config.rpath
234 config.sub depcomp elisp-comp install-sh libversion.in mdate-sh
235 missing mkinstalldirs py-compile texinfo.tex ylwrap),
236 @libtool_files, @libtool_sometimes);
238 # Commonly used files we auto-include, but only sometimes. This list
239 # is used for the --help output only.
240 my @common_sometimes =
241 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
242 configure.ac configure.in stamp-vti);
244 # Standard directories from the GNU Coding Standards, and additional
245 # pkg* directories from Automake. Stored in a hash for fast member check.
246 my %standard_prefix =
247 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
248 lib libexec lisp locale localstate man man1 man2
249 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
250 pkgdata pkginclude pkglib pkglibexec ps sbin
251 sharedstate sysconf));
253 # Copyright on generated Makefile.ins.
254 my $gen_copyright = "\
255 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
256 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
258 # This Makefile.in is free software; the Free Software Foundation
259 # gives unlimited permission to copy and/or distribute it,
260 # with or without modifications, as long as this notice is preserved.
262 # This program is distributed in the hope that it will be useful,
263 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
264 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
265 # PARTICULAR PURPOSE.
268 # These constants are returned by the lang_*_rewrite functions.
269 # LANG_SUBDIR means that the resulting object file should be in a
270 # subdir if the source file is. In this case the file name cannot
271 # have '..' components.
272 use constant LANG_IGNORE => 0;
273 use constant LANG_PROCESS => 1;
274 use constant LANG_SUBDIR => 2;
276 # These are used when keeping track of whether an object can be built
277 # by two different paths.
278 use constant COMPILE_LIBTOOL => 1;
279 use constant COMPILE_ORDINARY => 2;
281 # We can't always associate a location to a variable or a rule,
282 # when it's defined by Automake. We use INTERNAL in this case.
283 use constant INTERNAL => new Automake::Location;
285 # Serialization keys for message queues.
286 use constant QUEUE_MESSAGE => "msg";
287 use constant QUEUE_CONF_FILE => "conf file";
288 use constant QUEUE_LOCATION => "location";
289 use constant QUEUE_STRING => "string";
291 ## ---------------------------------- ##
292 ## Variables related to the options. ##
293 ## ---------------------------------- ##
295 # TRUE if we should always generate Makefile.in.
296 my $force_generation = 1;
298 # From the Perl manual.
299 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
301 # TRUE if missing standard files should be installed.
304 # TRUE if we should copy missing files; otherwise symlink if possible.
305 my $copy_missing = 0;
307 # TRUE if we should always update files that we know about.
308 my $force_missing = 0;
311 ## ---------------------------------------- ##
312 ## Variables filled during files scanning. ##
313 ## ---------------------------------------- ##
315 # Name of the configure.ac file.
318 # Files found by scanning configure.ac for LIBOBJS.
321 # Names used in AC_CONFIG_HEADER call.
322 my @config_headers = ();
324 # Names used in AC_CONFIG_LINKS call.
325 my @config_links = ();
327 # List of Makefile.am's to process, and their corresponding outputs.
328 my @input_files = ();
329 my %output_files = ();
331 # Complete list of Makefile.am's that exist.
332 my @configure_input_files = ();
334 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
336 my @other_input_files = ();
337 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
338 # The keys are the files created by these macros.
339 my %ac_config_files_location = ();
340 # The condition under which AC_CONFIG_FOOS appears.
341 my %ac_config_files_condition = ();
343 # Directory to search for configure-required files. This
344 # will be computed by &locate_aux_dir and can be set using
345 # AC_CONFIG_AUX_DIR in configure.ac.
346 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
347 my $config_aux_dir = '';
348 my $config_aux_dir_set_in_configure_ac = 0;
349 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
351 my $am_config_aux_dir = '';
353 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
355 my $config_libobj_dir = '';
357 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
358 my $seen_gettext = 0;
359 # Whether AM_GNU_GETTEXT([external]) is used.
360 my $seen_gettext_external = 0;
361 # Where AM_GNU_GETTEXT appears.
362 my $ac_gettext_location;
363 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
364 my $seen_gettext_intl = 0;
366 # Lists of tags supported by Libtool.
367 my %libtool_tags = ();
368 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
369 # uses AC_REQUIRE_AUX_FILE.
370 my $libtool_new_api = 0;
372 # Most important AC_CANONICAL_* macro seen so far.
373 my $seen_canonical = 0;
374 # Location of that macro.
375 my $canonical_location;
377 # Where AM_MAINTAINER_MODE appears.
380 # Actual version we've seen.
381 my $package_version = '';
383 # Where version is defined.
384 my $package_version_location;
386 # TRUE if we've seen AM_PROG_AR
389 # TRUE if we've seen AM_PROG_CC_C_O
392 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
393 my %required_aux_file = ();
395 # Where AM_INIT_AUTOMAKE is called;
396 my $seen_init_automake = 0;
398 # TRUE if we've seen AM_AUTOMAKE_VERSION.
399 my $seen_automake_version = 0;
401 # Hash table of discovered configure substitutions. Keys are names,
402 # values are 'FILE:LINE' strings which are used by error message
404 my %configure_vars = ();
406 # Ignored configure substitutions (i.e., variables not to be output in
408 my %ignored_configure_vars = ();
410 # Files included by $configure_ac.
411 my @configure_deps = ();
413 # Greatest timestamp of configure's dependencies.
414 my $configure_deps_greatest_timestamp = 0;
416 # Hash table of AM_CONDITIONAL variables seen in configure.
417 my %configure_cond = ();
419 # This maps extensions onto language names.
420 my %extension_map = ();
422 # List of the DIST_COMMON files we discovered while reading
424 my $configure_dist_common = '';
426 # This maps languages names onto objects.
428 # Maps each linker variable onto a language object.
429 my %link_languages = ();
431 # maps extensions to needed source flags.
432 my %sourceflags = ();
434 # List of targets we must always output.
435 # FIXME: Complete, and remove falsely required targets.
436 my %required_targets =
449 # FIXME: Not required, temporary hacks.
450 # Well, actually they are sort of required: the -recursive
451 # targets will run them anyway...
457 'install-data-am' => 1,
458 'install-exec-am' => 1,
459 'install-html-am' => 1,
460 'install-dvi-am' => 1,
461 'install-pdf-am' => 1,
462 'install-ps-am' => 1,
463 'install-info-am' => 1,
464 'installcheck-am' => 1,
470 # Queue to push require_conf_file requirements to.
471 my $required_conf_file_queue;
473 # The name of the Makefile currently being processed.
476 ################################################################
478 ## ------------------------------------------ ##
479 ## Variables reset by &initialize_per_input. ##
480 ## ------------------------------------------ ##
482 # Basename and relative dir of the input file.
486 # Same but wrt Makefile.in.
490 # Relative path to the top directory.
493 # Greatest timestamp of the output's dependencies (excluding
494 # configure's dependencies).
495 my $output_deps_greatest_timestamp;
497 # These variables are used when generating each Makefile.in.
498 # They hold the Makefile.in until it is ready to be printed.
505 # This is the conditional stack, updated on if/else/endif, and
506 # used to build Condition objects.
509 # This holds the set of included files.
512 # List of dependencies for the obvious targets.
517 # Keys in this hash table are files to delete. The associated
518 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
521 # Keys in this hash table are object files or other files in
522 # subdirectories which need to be removed. This only holds files
523 # which are created by compilations. The value in the hash indicates
524 # when the file should be removed.
525 my %compile_clean_files;
527 # Keys in this hash table are directories where we expect to build a
528 # libtool object. We use this information to decide what directories
530 my %libtool_clean_directories;
532 # Value of $(SOURCES), used by tags.am.
534 # Sources which go in the distribution.
537 # This hash maps object file names onto their corresponding source
538 # file names. This is used to ensure that each object is created
539 # by a single source file.
542 # This hash maps object file names onto an integer value representing
543 # whether this object has been built via ordinary compilation or
544 # libtool compilation (the COMPILE_* constants).
545 my %object_compilation_map;
548 # This keeps track of the directories for which we've already
549 # created dirstamp code. Keys are directories, values are stamp files.
550 # Several keys can share the same stamp files if they are equivalent
551 # (as are './/foo' and 'foo').
557 # This is a list of all targets to run during "make dist".
560 # Keep track of all programs declared in this Makefile, without
561 # $(EXEEXT). @substitutions@ are not listed.
565 # This keeps track of which extensions we've seen (that we care
569 # This is random scratch space for the language finish functions.
570 # Don't randomly overwrite it; examine other uses of keys first.
571 my %language_scratch;
573 # We keep track of which objects need special (per-executable)
574 # handling on a per-language basis.
575 my %lang_specific_files;
577 # This is set when 'handle_dist' has finished. Once this happens,
578 # we should no longer push on dist_common.
581 # Used to store a set of linkers needed to generate the sources currently
582 # under consideration.
585 # True if we need 'LINK' defined. This is a hack.
588 # Does the generated Makefile have to build some compiled object
589 # (for binary programs, or plain or libtool libraries)?
590 my $must_handle_compiled_objects;
592 # Record each file processed by make_paragraphs.
593 my %transformed_files;
595 ################################################################
597 ## ---------------------------------------------- ##
598 ## Variables not reset by &initialize_per_input. ##
599 ## ---------------------------------------------- ##
601 # Cache each file processed by make_paragraphs.
602 # (This is different from %transformed_files because
603 # %transformed_files is reset for each file while %am_file_cache
604 # it global to the run.)
607 ################################################################
609 # var_SUFFIXES_trigger ($TYPE, $VALUE)
610 # ------------------------------------
611 # This is called by Automake::Variable::define() when SUFFIXES
612 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
613 # The work here needs to be performed as a side-effect of the
614 # macro_define() call because SUFFIXES definitions impact
615 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
617 sub var_SUFFIXES_trigger ($$)
619 my ($type, $value) = @_;
620 accept_extensions (split (' ', $value));
622 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
624 ################################################################
626 ## --------------------------------- ##
627 ## Forward subroutine declarations. ##
628 ## --------------------------------- ##
629 sub register_language (%);
630 sub file_contents_internal ($$$%);
631 sub define_files_variable ($\@$$);
634 # &initialize_per_input ()
635 # ------------------------
636 # (Re)-Initialize per-Makefile.am variables.
637 sub initialize_per_input ()
639 reset_local_duplicates ();
641 $am_file_name = undef;
642 $am_relative_dir = undef;
644 $in_file_name = undef;
645 $relative_dir = undef;
648 $output_deps_greatest_timestamp = 0;
654 $output_trailer = '';
656 Automake::Options::reset;
657 Automake::Variable::reset;
658 Automake::Rule::reset;
669 %compile_clean_files = ();
671 # We always include '.'. This isn't strictly correct.
672 %libtool_clean_directories = ('.' => 1);
678 %object_compilation_map = ();
686 %known_programs = ();
687 %known_libraries= ();
689 %extension_seen = ();
691 %language_scratch = ();
693 %lang_specific_files = ();
695 $handle_dist_run = 0;
699 $must_handle_compiled_objects = 0;
701 %transformed_files = ();
705 ################################################################
707 # Initialize our list of languages that are internally supported.
710 register_language ('name' => 'c',
712 'config_vars' => ['CC'],
714 'flags' => ['CFLAGS', 'CPPFLAGS'],
716 'compiler' => 'COMPILE',
717 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
721 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
722 'compile_flag' => '-c',
723 'libtool_tag' => 'CC',
724 'extensions' => ['.c']);
727 register_language ('name' => 'cxx',
729 'config_vars' => ['CXX'],
730 'linker' => 'CXXLINK',
731 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
733 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
734 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
736 'compiler' => 'CXXCOMPILE',
737 'compile_flag' => '-c',
738 'output_flag' => '-o',
739 'libtool_tag' => 'CXX',
743 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
746 register_language ('name' => 'objc',
747 'Name' => 'Objective C',
748 'config_vars' => ['OBJC'],
749 'linker' => 'OBJCLINK',
750 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
752 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
753 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
755 'compiler' => 'OBJCCOMPILE',
756 'compile_flag' => '-c',
757 'output_flag' => '-o',
761 'extensions' => ['.m']);
763 # Unified Parallel C.
764 register_language ('name' => 'upc',
765 'Name' => 'Unified Parallel C',
766 'config_vars' => ['UPC'],
767 'linker' => 'UPCLINK',
768 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
770 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
771 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
773 'compiler' => 'UPCCOMPILE',
774 'compile_flag' => '-c',
775 'output_flag' => '-o',
779 'extensions' => ['.upc']);
782 register_language ('name' => 'header',
784 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
787 'output_extensions' => sub { return () },
789 '_finish' => sub { });
792 register_language ('name' => 'vala',
794 'config_vars' => ['VALAC'],
796 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
798 'compiler' => 'VALACOMPILE',
799 'extensions' => ['.vala'],
800 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
802 'rule_file' => 'vala',
803 '_finish' => \&lang_vala_finish,
804 '_target_hook' => \&lang_vala_target_hook,
805 'nodist_specific' => 1);
808 register_language ('name' => 'yacc',
810 'config_vars' => ['YACC'],
811 'flags' => ['YFLAGS'],
812 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
814 'compiler' => 'YACCCOMPILE',
815 'extensions' => ['.y'],
816 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
818 'rule_file' => 'yacc',
819 '_finish' => \&lang_yacc_finish,
820 '_target_hook' => \&lang_yacc_target_hook,
821 'nodist_specific' => 1);
822 register_language ('name' => 'yaccxx',
823 'Name' => 'Yacc (C++)',
824 'config_vars' => ['YACC'],
825 'rule_file' => 'yacc',
826 'flags' => ['YFLAGS'],
828 'compiler' => 'YACCCOMPILE',
829 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
830 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
831 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
833 '_finish' => \&lang_yacc_finish,
834 '_target_hook' => \&lang_yacc_target_hook,
835 'nodist_specific' => 1);
838 register_language ('name' => 'lex',
840 'config_vars' => ['LEX'],
841 'rule_file' => 'lex',
842 'flags' => ['LFLAGS'],
843 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
845 'compiler' => 'LEXCOMPILE',
846 'extensions' => ['.l'],
847 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
849 '_finish' => \&lang_lex_finish,
850 '_target_hook' => \&lang_lex_target_hook,
851 'nodist_specific' => 1);
852 register_language ('name' => 'lexxx',
853 'Name' => 'Lex (C++)',
854 'config_vars' => ['LEX'],
855 'rule_file' => 'lex',
856 'flags' => ['LFLAGS'],
857 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
859 'compiler' => 'LEXCOMPILE',
860 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
861 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
863 '_finish' => \&lang_lex_finish,
864 '_target_hook' => \&lang_lex_target_hook,
865 'nodist_specific' => 1);
868 register_language ('name' => 'asm',
869 'Name' => 'Assembler',
870 'config_vars' => ['CCAS', 'CCASFLAGS'],
872 'flags' => ['CCASFLAGS'],
873 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
874 # or anything else required. They can also set CCAS.
875 # Or simply use Preprocessed Assembler.
876 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
878 'compiler' => 'CCASCOMPILE',
879 'compile_flag' => '-c',
880 'output_flag' => '-o',
881 'extensions' => ['.s']);
883 # Preprocessed Assembler.
884 register_language ('name' => 'cppasm',
885 'Name' => 'Preprocessed Assembler',
886 'config_vars' => ['CCAS', 'CCASFLAGS'],
889 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
890 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
892 'compiler' => 'CPPASCOMPILE',
893 'compile_flag' => '-c',
894 'output_flag' => '-o',
895 'extensions' => ['.S', '.sx']);
898 register_language ('name' => 'f77',
899 'Name' => 'Fortran 77',
900 'config_vars' => ['F77'],
901 'linker' => 'F77LINK',
902 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
903 'flags' => ['FFLAGS'],
904 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
906 'compiler' => 'F77COMPILE',
907 'compile_flag' => '-c',
908 'output_flag' => '-o',
909 'libtool_tag' => 'F77',
913 'extensions' => ['.f', '.for']);
916 register_language ('name' => 'fc',
918 'config_vars' => ['FC'],
919 'linker' => 'FCLINK',
920 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
921 'flags' => ['FCFLAGS'],
922 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
924 'compiler' => 'FCCOMPILE',
925 'compile_flag' => '-c',
926 'output_flag' => '-o',
927 'libtool_tag' => 'FC',
931 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
933 # Preprocessed Fortran
934 register_language ('name' => 'ppfc',
935 'Name' => 'Preprocessed Fortran',
936 'config_vars' => ['FC'],
937 'linker' => 'FCLINK',
938 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
941 'flags' => ['FCFLAGS', 'CPPFLAGS'],
943 'compiler' => 'PPFCCOMPILE',
944 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
945 'compile_flag' => '-c',
946 'output_flag' => '-o',
947 'libtool_tag' => 'FC',
949 'extensions' => ['.F90','.F95', '.F03', '.F08']);
951 # Preprocessed Fortran 77
953 # The current support for preprocessing Fortran 77 just involves
954 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
955 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
956 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
957 # for 'make' Version 3.76 Beta" (specifically, from info file
958 # '(make)Catalogue of Rules').
960 # A better approach would be to write an Autoconf test
961 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
962 # Fortran 77 compilers know how to do preprocessing. The Autoconf
963 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
964 # preprocessing capabilities, and then fall back on cpp (if cpp were
966 register_language ('name' => 'ppf77',
967 'Name' => 'Preprocessed Fortran 77',
968 'config_vars' => ['F77'],
969 'linker' => 'F77LINK',
970 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
973 'flags' => ['FFLAGS', 'CPPFLAGS'],
975 'compiler' => 'PPF77COMPILE',
976 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
977 'compile_flag' => '-c',
978 'output_flag' => '-o',
979 'libtool_tag' => 'F77',
981 'extensions' => ['.F']);
984 register_language ('name' => 'ratfor',
986 'config_vars' => ['F77'],
987 'linker' => 'F77LINK',
988 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
991 'flags' => ['RFLAGS', 'FFLAGS'],
993 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
995 'compiler' => 'RCOMPILE',
996 'compile_flag' => '-c',
997 'output_flag' => '-o',
998 'libtool_tag' => 'F77',
1000 'extensions' => ['.r']);
1003 register_language ('name' => 'java',
1005 'config_vars' => ['GCJ'],
1006 'linker' => 'GCJLINK',
1007 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1009 'flags' => ['GCJFLAGS'],
1010 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1012 'compiler' => 'GCJCOMPILE',
1013 'compile_flag' => '-c',
1014 'output_flag' => '-o',
1015 'libtool_tag' => 'GCJ',
1019 'extensions' => ['.java', '.class', '.zip', '.jar']);
1021 ################################################################
1023 # Error reporting functions.
1025 # err_am ($MESSAGE, [%OPTIONS])
1026 # -----------------------------
1027 # Uncategorized errors about the current Makefile.am.
1030 msg_am ('error', @_);
1033 # err_ac ($MESSAGE, [%OPTIONS])
1034 # -----------------------------
1035 # Uncategorized errors about configure.ac.
1038 msg_ac ('error', @_);
1041 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1042 # ---------------------------------------
1043 # Messages about about the current Makefile.am.
1046 my ($channel, $msg, %opts) = @_;
1047 msg $channel, "${am_file}.am", $msg, %opts;
1050 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1051 # ---------------------------------------
1052 # Messages about about configure.ac.
1055 my ($channel, $msg, %opts) = @_;
1056 msg $channel, $configure_ac, $msg, %opts;
1059 ################################################################
1063 # Return a configure-style substitution using the indicated text.
1064 # We do this to avoid having the substitutions directly in automake.in;
1065 # when we do that they are sometimes removed and this causes confusion
1070 return '@' . $text . '@';
1073 ################################################################
1077 # &backname ($RELDIR)
1078 # --------------------
1079 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1080 # For instance 'src/foo' => '../..'.
1081 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1086 foreach (split (/\//, $file))
1088 next if $_ eq '.' || $_ eq '';
1092 or prog_error ("trying to reverse path '$file' pointing outside tree");
1099 return join ('/', @res) || '.';
1102 ################################################################
1104 # 'silent-rules' mode handling functions.
1106 # verbose_var (NAME)
1107 # ------------------
1108 # The public variable stem used to implement 'silent-rules'.
1112 return 'AM_V_' . $name;
1115 # verbose_private_var (NAME)
1116 # --------------------------
1117 # The naming policy for the private variables for 'silent-rules'.
1118 sub verbose_private_var ($)
1121 return 'am__v_' . $name;
1124 # define_verbose_var (NAME, VAL)
1125 # ------------------------------
1126 # For 'silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1127 sub define_verbose_var ($$)
1129 my ($name, $val) = @_;
1130 my $var = verbose_var ($name);
1131 my $pvar = verbose_private_var ($name);
1132 my $silent_var = $pvar . '_0';
1133 if (option 'silent-rules')
1135 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1136 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1137 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1138 # See AM_SILENT_RULES in m4/silent.m4.
1139 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1140 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1141 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1142 '', INTERNAL, VAR_ASIS)
1143 if (! vardef ($silent_var, TRUE));
1147 # Above should not be needed in the general automake code.
1149 # verbose_flag (NAME)
1150 # -------------------
1151 # Contents of %VERBOSE%: variable to expand before rule command.
1152 sub verbose_flag ($)
1155 return '$(' . verbose_var ($name) . ')'
1156 if (option 'silent-rules');
1160 sub verbose_nodep_flag ($)
1163 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1164 if (option 'silent-rules');
1170 # Contents of %SILENT%: variable to expand to '@' when silent.
1173 return verbose_flag ('at');
1176 # define_verbose_tagvar (NAME)
1177 # ----------------------------
1178 # Engage the needed 'silent-rules' machinery for tag NAME.
1179 sub define_verbose_tagvar ($)
1182 if (option 'silent-rules')
1184 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1185 define_verbose_var ('at', '@');
1189 # define_verbose_texinfo
1190 # ----------------------
1191 # Engage the needed 'silent-rules' machinery for assorted texinfo commands.
1192 sub define_verbose_texinfo ()
1194 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1195 foreach my $tag (@tagvars)
1197 define_verbose_tagvar($tag);
1199 define_verbose_var('texinfo', '-q');
1200 define_verbose_var('texidevnull', '> /dev/null');
1203 # define_verbose_libtool
1204 # ----------------------
1205 # Engage the needed 'silent-rules' machinery for 'libtool --silent'.
1206 sub define_verbose_libtool ()
1208 define_verbose_var ('lt', '--silent');
1209 return verbose_flag ('lt');
1213 ################################################################
1216 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1219 my $var = var ('AUTOMAKE_OPTIONS');
1222 if ($var->has_conditional_contents)
1224 msg_var ('unsupported', $var,
1225 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1227 my @options = map { { option => $_->[1], where => $_->[0] } }
1228 $var->value_as_list_recursive (cond_filter => TRUE,
1230 return 1 if process_option_list (@options);
1233 # Override portability-recursive warning.
1234 switch_warning ('no-portability-recursive')
1235 if option 'silent-rules';
1237 if ($strictness == GNITS)
1239 set_option ('readme-alpha', INTERNAL);
1240 set_option ('std-options', INTERNAL);
1241 set_option ('check-news', INTERNAL);
1247 # shadow_unconditionally ($varname, $where)
1248 # -----------------------------------------
1249 # Return a $(variable) that contains all possible values
1250 # $varname can take.
1251 # If the VAR wasn't defined conditionally, return $(VAR).
1252 # Otherwise we create an am__VAR_DIST variable which contains
1253 # all possible values, and return $(am__VAR_DIST).
1254 sub shadow_unconditionally ($$)
1256 my ($varname, $where) = @_;
1257 my $var = var $varname;
1258 if ($var->has_conditional_contents)
1260 $varname = "am__${varname}_DIST";
1261 my @files = uniq ($var->value_as_list_recursive);
1262 define_pretty_variable ($varname, TRUE, $where, @files);
1264 return "\$($varname)"
1267 # check_user_variables (@LIST)
1268 # ----------------------------
1269 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1271 sub check_user_variables (@)
1273 my @dont_override = @_;
1274 foreach my $flag (@dont_override)
1276 my $var = var $flag;
1279 for my $cond ($var->conditions->conds)
1281 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1283 msg_cond_var ('gnu', $cond, $flag,
1284 "'$flag' is a user variable, "
1285 . "you should not override it;\n"
1286 . "use 'AM_$flag' instead");
1293 # Call finish function for each language that was used.
1294 sub handle_languages
1296 if (! option 'no-dependencies')
1298 # Include auto-dep code. Don't include it if DEP_FILES would
1300 if (&saw_sources_p (0) && keys %dep_files)
1302 # Set location of depcomp.
1303 &define_variable ('depcomp',
1304 "\$(SHELL) $am_config_aux_dir/depcomp",
1306 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1308 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1310 my @deplist = sort keys %dep_files;
1311 # Generate each 'include' individually. Irix 6 make will
1312 # not properly include several files resulting from a
1313 # variable expansion; generating many separate includes
1315 $output_rules .= "\n";
1316 foreach my $iter (@deplist)
1318 $output_rules .= (subst ('AMDEP_TRUE')
1319 . subst ('am__include')
1321 . subst ('am__quote')
1323 . subst ('am__quote')
1327 # Compute the set of directories to remove in distclean-depend.
1328 my @depdirs = uniq (map { dirname ($_) } @deplist);
1329 $output_rules .= &file_contents ('depend',
1330 new Automake::Location,
1331 DEPDIRS => "@depdirs");
1336 &define_variable ('depcomp', '', INTERNAL);
1337 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1342 # Is the C linker needed?
1344 foreach my $ext (sort keys %extension_seen)
1346 next unless $extension_map{$ext};
1348 my $lang = $languages{$extension_map{$ext}};
1350 my $rule_file = $lang->rule_file || 'depend2';
1352 # Get information on $LANG.
1353 my $pfx = $lang->autodep;
1354 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1356 my ($AMDEP, $FASTDEP) =
1357 (option 'no-dependencies' || $lang->autodep eq 'no')
1358 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1360 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1361 my $verbose_nodep = ($AMDEP eq 'FALSE')
1362 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1363 my $silent = silent_flag ();
1365 my %transform = ('EXT' => $ext,
1369 'FASTDEP' => $FASTDEP,
1370 '-c' => $lang->compile_flag || '',
1371 # These are not used, but they need to be defined
1372 # so &transform do not complain.
1374 'DERIVED-EXT' => 'BUG',
1376 VERBOSE => $verbose,
1377 'VERBOSE-NODEP' => $verbose_nodep,
1381 # Generate the appropriate rules for this extension.
1382 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1383 || defined $lang->compile)
1385 # Some C compilers don't support -c -o. Use it only if really
1387 my $output_flag = $lang->output_flag || '';
1390 && $lang->name eq 'c'
1391 && option 'subdir-objects');
1393 # Compute a possible derived extension.
1394 # This is not used by depend2.am.
1395 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1397 # When we output an inference rule like '.c.o:' we
1398 # have two cases to consider: either subdir-objects
1399 # is used, or it is not.
1401 # In the latter case the rule is used to build objects
1402 # in the current directory, and dependencies always
1403 # go into './$(DEPDIR)/'. We can hard-code this value.
1405 # In the former case the rule can be used to build
1406 # objects in sub-directories too. Dependencies should
1407 # go into the appropriate sub-directories, e.g.,
1408 # 'sub/$(DEPDIR)/'. The value of this directory
1409 # needs to be computed on-the-fly.
1411 # DEPBASE holds the name of this directory, plus the
1412 # basename part of the object file (extensions Po, TPo,
1413 # Plo, TPlo will be added later as appropriate). It is
1414 # either hardcoded, or a shell variable ('$depbase') that
1415 # will be computed by the rule.
1417 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1419 file_contents ($rule_file,
1420 new Automake::Location,
1424 'DERIVED-EXT' => $der_ext,
1426 DEPBASE => $depbase,
1429 SOURCEFLAG => $sourceflags{$ext} || '',
1434 COMPILE => '$(' . $lang->compiler . ')',
1435 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1437 SUBDIROBJ => !! option 'subdir-objects');
1440 # Now include code for each specially handled object with this
1442 my %seen_files = ();
1443 foreach my $file (@{$lang_specific_files{$lang->name}})
1445 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1447 # We might see a given object twice, for instance if it is
1448 # used under different conditions.
1449 next if defined $seen_files{$obj};
1450 $seen_files{$obj} = 1;
1452 prog_error ("found " . $lang->name .
1453 " in handle_languages, but compiler not defined")
1454 unless defined $lang->compile;
1456 my $obj_compile = $lang->compile;
1458 # Rewrite each occurrence of 'AM_$flag' in the compile
1459 # rule into '${derived}_$flag' if it exists.
1460 for my $flag (@{$lang->flags})
1462 my $val = "${derived}_$flag";
1463 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1467 my $libtool_tag = '';
1468 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1470 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1473 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1474 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1476 my $ltverbose = define_verbose_libtool ();
1478 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1479 . "--mode=compile $obj_compile";
1481 # We _need_ '-o' for per object rules.
1482 my $output_flag = $lang->output_flag || '-o';
1484 my $depbase = dirname ($obj);
1488 unless $depbase eq '';
1489 $depbase .= '$(DEPDIR)/' . basename ($obj);
1492 file_contents ($rule_file,
1493 new Automake::Location,
1497 DEPBASE => $depbase,
1500 SOURCEFLAG => $sourceflags{$srcext} || '',
1501 # Use $myext and not '.o' here, in case
1502 # we are actually building a new source
1503 # file -- e.g. via yacc.
1504 OBJ => "$obj$myext",
1505 OBJOBJ => "$obj.obj",
1508 VERBOSE => $verbose,
1509 'VERBOSE-NODEP' => $verbose_nodep,
1511 COMPILE => $obj_compile,
1512 LTCOMPILE => $obj_ltcompile,
1517 # The rest of the loop is done once per language.
1518 next if defined $done{$lang};
1521 # Load the language dependent Makefile chunks.
1522 my %lang = map { uc ($_) => 0 } keys %languages;
1523 $lang{uc ($lang->name)} = 1;
1524 $output_rules .= file_contents ('lang-compile',
1525 new Automake::Location,
1528 # If the source to a program consists entirely of code from a
1529 # 'pure' language, for instance C++ or Fortran 77, then we
1530 # don't need the C compiler code. However if we run into
1531 # something unusual then we do generate the C code. There are
1532 # probably corner cases here that do not work properly.
1533 # People linking Java code to Fortran code deserve pain.
1534 $needs_c ||= ! $lang->pure;
1536 define_compiler_variable ($lang)
1537 if ($lang->compile);
1539 define_linker_variable ($lang)
1542 require_variables ("$am_file.am", $lang->Name . " source seen",
1543 TRUE, @{$lang->config_vars});
1545 # Call the finisher.
1548 # Flags listed in '->flags' are user variables (per GNU Standards),
1549 # they should not be overridden in the Makefile...
1550 my @dont_override = @{$lang->flags};
1551 # ... and so is LDFLAGS.
1552 push @dont_override, 'LDFLAGS' if $lang->link;
1554 check_user_variables @dont_override;
1557 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1558 # suffix rule was learned), don't bother with the C stuff. But if
1559 # anything else creeps in, then use it.
1561 if $need_link || suffix_rules_count > 1;
1565 &define_compiler_variable ($languages{'c'})
1566 unless defined $done{$languages{'c'}};
1567 define_linker_variable ($languages{'c'});
1570 # Always provide the user with 'AM_V_GEN' for 'silent-rules' mode.
1571 define_verbose_tagvar ('GEN');
1575 # append_exeext { PREDICATE } $MACRO
1576 # ----------------------------------
1577 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1578 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1581 # This is typically used on all filenames of *_PROGRAMS, and filenames
1582 # of TESTS that are programs.
1583 sub append_exeext (&$)
1585 my ($pred, $macro) = @_;
1587 transform_variable_recursively
1588 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1590 my ($subvar, $val, $cond, $full_cond) = @_;
1591 # Append $(EXEEXT) unless the user did it already, or it's a
1594 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1600 # Check to make sure a source defined in LIBOBJS is not explicitly
1601 # mentioned. This is a separate function (as opposed to being inlined
1602 # in handle_source_transform) because it isn't always appropriate to
1604 sub check_libobjs_sources
1606 my ($one_file, $unxformed) = @_;
1608 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1609 'dist_EXTRA_', 'nodist_EXTRA_')
1612 my $varname = $prefix . $one_file . '_SOURCES';
1613 my $var = var ($varname);
1616 @files = $var->value_as_list_recursive;
1618 elsif ($prefix eq '')
1620 @files = ($unxformed . '.c');
1627 foreach my $file (@files)
1629 err_var ($prefix . $one_file . '_SOURCES',
1630 "automatically discovered file '$file' should not" .
1631 " be explicitly mentioned")
1632 if defined $libsources{$file};
1639 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1640 # -----------------------------------------------------------------------------
1641 # Does much of the actual work for handle_source_transform.
1643 # $VAR is the name of the variable that the source filenames come from
1644 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1645 # $DERIVED is the name of resulting executable or library
1646 # $OBJ is the object extension (e.g., '.lo')
1647 # $FILE the source file to transform
1648 # %TRANSFORM contains extras arguments to pass to file_contents
1649 # when producing explicit rules
1650 # Result is a list of the names of objects
1651 # %linkers_used will be updated with any linkers needed
1652 sub handle_single_transform ($$$$$%)
1654 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1655 my @files = ($_file);
1658 # Turn sources into objects. We use a while loop like this
1659 # because we might add to @files in the loop.
1660 while (scalar @files > 0)
1664 # Configure substitutions in _SOURCES variables are errors.
1667 my $parent_msg = '';
1668 $parent_msg = "\nand is referred to from '$topparent'"
1669 if $topparent ne $var->name;
1671 "'" . $var->name . "' includes configure substitution '$_'"
1672 . $parent_msg . ";\nconfigure " .
1673 "substitutions are not allowed in _SOURCES variables");
1677 # If the source file is in a subdirectory then the '.o' is put
1678 # into the current directory, unless the subdir-objects option
1681 # Split file name into base and extension.
1682 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1684 my $directory = $1 || '';
1688 # We must generate a rule for the object if it requires its own flags.
1690 my ($linker, $object);
1692 # This records whether we've seen a derived source file (e.g.
1694 my $derived_source = 0;
1696 # This holds the 'aggregate context' of the file we are
1697 # currently examining. If the file is compiled with
1698 # per-object flags, then it will be the name of the object.
1699 # Otherwise it will be 'AM'. This is used by the target hook
1700 # language function.
1701 my $aggregate = 'AM';
1703 $extension = &derive_suffix ($extension, $obj);
1705 if ($extension_map{$extension} &&
1706 ($lang = $languages{$extension_map{$extension}}))
1708 # Found the language, so see what it says.
1709 &saw_extension ($extension);
1711 # Do we have per-executable flags for this executable?
1712 my $have_per_exec_flags = 0;
1713 my @peflags = @{$lang->flags};
1714 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1715 foreach my $flag (@peflags)
1717 if (set_seen ("${derived}_$flag"))
1719 $have_per_exec_flags = 1;
1724 # Note: computed subr call. The language rewrite function
1725 # should return one of the LANG_* constants. It could
1726 # also return a list whose first value is such a constant
1727 # and whose second value is a new source extension which
1728 # should be applied. This means this particular language
1729 # generates another source file which we must then process
1731 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1732 my ($r, $source_extension)
1733 = &$subr ($directory, $base, $extension,
1734 $obj, $have_per_exec_flags, $var);
1735 # Skip this entry if we were asked not to process it.
1736 next if $r == LANG_IGNORE;
1738 # Now extract linker and other info.
1739 $linker = $lang->linker;
1742 if (defined $source_extension)
1744 $this_obj_ext = $source_extension;
1745 $derived_source = 1;
1749 $this_obj_ext = $obj;
1751 $object = $base . $this_obj_ext;
1753 if ($have_per_exec_flags)
1755 # We have a per-executable flag in effect for this
1756 # object. In this case we rewrite the object's
1757 # name to ensure it is unique.
1759 # We choose the name 'DERIVED_OBJECT' to ensure
1760 # (1) uniqueness, and (2) continuity between
1761 # invocations. However, this will result in a
1762 # name that is too long for losing systems, in
1763 # some situations. So we provide _SHORTNAME to
1766 my $dname = $derived;
1767 my $var = var ($derived . '_SHORTNAME');
1770 # FIXME: should use the same Condition as
1771 # the _SOURCES variable. But this is really
1772 # silly overkill -- nobody should have
1773 # conditional shortnames.
1774 $dname = $var->variable_value;
1776 $object = $dname . '-' . $object;
1778 prog_error ($lang->name . " flags defined without compiler")
1779 if ! defined $lang->compile;
1784 # If rewrite said it was ok, put the object into a
1786 if ($r == LANG_SUBDIR && $directory ne '')
1788 $object = $directory . '/' . $object;
1791 # If the object file has been renamed (because per-target
1792 # flags are used) we cannot compile the file with an
1793 # inference rule: we need an explicit rule.
1795 # If the source is in a subdirectory and the object is in
1796 # the current directory, we also need an explicit rule.
1798 # If both source and object files are in a subdirectory
1799 # (this happens when the subdir-objects option is used),
1800 # then the inference will work.
1802 # The latter case deserves a historical note. When the
1803 # subdir-objects option was added on 1999-04-11 it was
1804 # thought that inferences rules would work for
1805 # subdirectory objects too. Later, on 1999-11-22,
1806 # automake was changed to output explicit rules even for
1807 # subdir-objects. Nobody remembers why, but this occurred
1808 # soon after the merge of the user-dep-gen-branch so it
1809 # might be related. In late 2003 people complained about
1810 # the size of the generated Makefile.ins (libgcj, with
1811 # 2200+ subdir objects was reported to have a 9MB
1812 # Makefile), so we now rely on inference rules again.
1813 # Maybe we'll run across the same issue as in the past,
1814 # but at least this time we can document it. However since
1815 # dependency tracking has evolved it is possible that
1816 # our old problem no longer exists.
1817 # Using inference rules for subdir-objects has been tested
1818 # with GNU make, Solaris make, Ultrix make, BSD make,
1819 # HP-UX make, and OSF1 make successfully.
1821 || ($directory ne '' && ! option 'subdir-objects')
1822 # We must also use specific rules for a nodist_ source
1823 # if its language requests it.
1824 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1826 my $obj_sans_ext = substr ($object, 0,
1827 - length ($this_obj_ext));
1829 if ($directory ne '')
1831 $full_ansi = $directory . '/' . $base . $extension;
1835 $full_ansi = $base . $extension;
1838 my @specifics = ($full_ansi, $obj_sans_ext,
1839 # Only use $this_obj_ext in the derived
1840 # source case because in the other case we
1841 # *don't* want $(OBJEXT) to appear here.
1842 ($derived_source ? $this_obj_ext : '.o'),
1845 # If we renamed the object then we want to use the
1846 # per-executable flag name. But if this is simply a
1847 # subdir build then we still want to use the AM_ flag
1851 unshift @specifics, $derived;
1852 $aggregate = $derived;
1856 unshift @specifics, 'AM';
1859 # Each item on this list is a reference to a list consisting
1860 # of four values followed by additional transform flags for
1861 # file_contents. The four values are the derived flag prefix
1862 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1863 # source file, the base name of the output file, and
1864 # the extension for the object file.
1865 push (@{$lang_specific_files{$lang->name}},
1866 [@specifics, %transform]);
1869 elsif ($extension eq $obj)
1871 # This is probably the result of a direct suffix rule.
1872 # In this case we just accept the rewrite.
1873 $object = "$base$extension";
1874 $object = "$directory/$object" if $directory ne '';
1879 # No error message here. Used to have one, but it was
1881 # FIXME: we could potentially do more processing here,
1882 # perhaps treating the new extension as though it were a
1883 # new source extension (as above). This would require
1884 # more restructuring than is appropriate right now.
1888 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1889 if (defined $object_map{$object}
1890 && $object_map{$object} ne $full);
1892 my $comp_val = (($object =~ /\.lo$/)
1893 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1894 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1895 if (defined $object_compilation_map{$comp_obj}
1896 && $object_compilation_map{$comp_obj} != 0
1897 # Only see the error once.
1898 && ($object_compilation_map{$comp_obj}
1899 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1900 && $object_compilation_map{$comp_obj} != $comp_val)
1902 err_am "object '$comp_obj' created both with libtool and without";
1904 $object_compilation_map{$comp_obj} |= $comp_val;
1908 # Let the language do some special magic if required.
1909 $lang->target_hook ($aggregate, $object, $full, %transform);
1912 if ($derived_source)
1914 prog_error ($lang->name . " has automatic dependency tracking")
1915 if $lang->autodep ne 'no';
1916 # Make sure this new source file is handled next. That will
1917 # make it appear to be at the right place in the list.
1918 unshift (@files, $object);
1919 # Distribute derived sources unless the source they are
1920 # derived from is not.
1921 &push_dist_common ($object)
1922 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1926 $linkers_used{$linker} = 1;
1928 push (@result, $object);
1930 if (! defined $object_map{$object})
1933 $object_map{$object} = $full;
1935 # If resulting object is in subdir, we need to make
1936 # sure the subdir exists at build time.
1937 if ($object =~ /\//)
1939 # FIXME: check that $DIRECTORY is somewhere in the
1942 # For Java, the way we're handling it right now, a
1943 # '..' component doesn't make sense.
1944 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1946 err_am "'$full' should not contain a '..' component";
1949 # Make sure object is removed by 'make mostlyclean'.
1950 $compile_clean_files{$object} = MOSTLY_CLEAN;
1951 # If we have a libtool object then we also must remove
1953 if ($object =~ /\.lo$/)
1955 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1956 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1958 # Remove any libtool object in this directory.
1959 $libtool_clean_directories{$directory} = 1;
1962 push (@dep_list, require_build_directory ($directory));
1964 # If we're generating dependencies, we also want
1965 # to make sure that the appropriate subdir of the
1966 # .deps directory is created.
1968 require_build_directory ($directory . '/$(DEPDIR)'))
1969 unless option 'no-dependencies';
1972 &pretty_print_rule ($object . ':', "\t", @dep_list)
1973 if scalar @dep_list > 0;
1976 # Transform .o or $o file into .P file (for automatic
1978 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1979 # might fail over them in an include statement.
1980 # Leading double slashes may be special, as per Posix, so deal
1981 # with them carefully.
1982 if ($lang && $lang->autodep ne 'no')
1984 my $depfile = $object;
1985 $depfile =~ s/\.([^.]*)$/.P$1/;
1986 $depfile =~ s/\$\(OBJEXT\)$/o/;
1987 my $maybe_extra_leading_slash = '';
1988 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
1989 $depfile =~ s,/+,/,g;
1990 my $basename = basename ($depfile);
1991 # This might make $dirname empty, but we account for that below.
1992 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
1993 $dirname = $maybe_extra_leading_slash . $dirname;
1994 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2003 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2004 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2005 # ---------------------------------------------------------------------------
2006 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2009 # $VAR is the name of the _SOURCES variable
2010 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2011 # it will be generated and returned).
2012 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2013 # work done to determine the linker will be).
2014 # $ONE_FILE is the canonical (transformed) name of object to build
2015 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2016 # $TOPPARENT is the _SOURCES variable being processed.
2017 # $WHERE context into which this definition is done
2018 # %TRANSFORM extra arguments to pass to file_contents when producing
2021 # Result is a pair ($LINKER, $OBJVAR):
2022 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2023 sub define_objects_from_sources ($$$$$$$%)
2025 my ($var, $objvar, $nodefine, $one_file,
2026 $obj, $topparent, $where, %transform) = @_;
2028 my $needlinker = "";
2030 transform_variable_recursively
2031 ($var, $objvar, 'am__objects', $nodefine, $where,
2032 # The transform code to run on each filename.
2034 my ($subvar, $val, $cond, $full_cond) = @_;
2035 my @trans = handle_single_transform ($subvar, $topparent,
2036 $one_file, $obj, $val,
2038 $needlinker = "true" if @trans;
2046 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2047 # -----------------------------------------------------------------------------
2048 # Handle SOURCE->OBJECT transform for one program or library.
2050 # canonical (transformed) name of target to build
2051 # actual target of object to build
2052 # object extension (i.e., either '.o' or '$o')
2053 # location of the source variable
2054 # extra arguments to pass to file_contents when producing rules
2055 # Return the name of the linker variable that must be used.
2056 # Empty return means just use 'LINK'.
2057 sub handle_source_transform ($$$$%)
2059 # one_file is canonical name. unxformed is given name. obj is
2061 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2065 # No point in continuing if _OBJECTS is defined.
2066 return if reject_var ($one_file . '_OBJECTS',
2067 $one_file . '_OBJECTS should not be defined');
2072 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2073 'dist_EXTRA_', 'nodist_EXTRA_')
2075 my $varname = $prefix . $one_file . "_SOURCES";
2076 my $var = var $varname;
2079 # We are going to define _OBJECTS variables using the prefix.
2080 # Then we glom them all together. So we can't use the null
2081 # prefix here as we need it later.
2082 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2084 # Keep track of which prefixes we saw.
2085 $used_pfx{$xpfx} = 1
2086 unless $prefix =~ /EXTRA_/;
2088 push @sources, "\$($varname)";
2089 push @dist_sources, shadow_unconditionally ($varname, $where)
2090 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2093 define_objects_from_sources ($varname,
2094 $xpfx . $one_file . '_OBJECTS',
2095 $prefix =~ /EXTRA_/,
2096 $one_file, $obj, $varname, $where,
2097 DIST_SOURCE => ($prefix !~ /^nodist_/),
2102 $linker ||= &resolve_linker (%linkers_used);
2105 my @keys = sort keys %used_pfx;
2106 if (scalar @keys == 0)
2108 # The default source for libfoo.la is libfoo.c, but for
2109 # backward compatibility we first look at libfoo_la.c,
2110 # if no default source suffix is given.
2111 my $old_default_source = "$one_file.c";
2112 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2113 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2114 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2115 if $default_source_ext =~ /[\t ]/;
2116 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2117 if ($old_default_source ne $default_source
2119 && (rule $old_default_source
2120 || rule '$(srcdir)/' . $old_default_source
2121 || rule '${srcdir}/' . $old_default_source
2122 || -f $old_default_source))
2124 my $loc = $where->clone;
2126 msg ('obsolete', $loc,
2127 "the default source for '$unxformed' has been changed "
2128 . "to '$default_source'.\n(Using '$old_default_source' for "
2129 . "backward compatibility.)");
2130 $default_source = $old_default_source;
2132 # If a rule exists to build this source with a $(srcdir)
2133 # prefix, use that prefix in our variables too. This is for
2134 # the sake of BSD Make.
2135 if (rule '$(srcdir)/' . $default_source
2136 || rule '${srcdir}/' . $default_source)
2138 $default_source = '$(srcdir)/' . $default_source;
2141 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2142 push (@sources, $default_source);
2143 push (@dist_sources, $default_source);
2147 handle_single_transform ($one_file . '_SOURCES',
2148 $one_file . '_SOURCES',
2150 $default_source, %transform);
2151 $linker ||= &resolve_linker (%linkers_used);
2152 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2156 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2157 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2160 # If we want to use 'LINK' we must make sure it is defined.
2170 # handle_lib_objects ($XNAME, $VAR)
2171 # ---------------------------------
2172 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2173 # Also, generate _DEPENDENCIES variable if appropriate.
2175 # transformed name of object being built, or empty string if no object
2176 # name of _LDADD/_LIBADD-type variable to examine
2177 # Returns 1 if LIBOBJS seen, 0 otherwise.
2178 sub handle_lib_objects
2180 my ($xname, $varname) = @_;
2182 my $var = var ($varname);
2183 prog_error "'$varname' undefined"
2185 prog_error "unexpected variable name '$varname'"
2186 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2187 my $prefix = $1 || 'AM_';
2189 my $seen_libobjs = 0;
2192 transform_variable_recursively
2193 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2195 # Transformation function, run on each filename.
2197 my ($subvar, $val, $cond, $full_cond) = @_;
2201 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2202 if ($val !~ /^-[lL]/ &&
2203 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2204 # for Libtool libraries or programs. (Actually we are a bit
2205 # lax here since this code also applies to non-libtool
2206 # libraries or programs, for which -dlopen and -dlopreopen
2207 # are pure nonsense. Diagnosing this doesn't seem very
2208 # important: the developer will quickly get complaints from
2210 $val !~ /^-dl(?:pre)?open$/ &&
2211 # Only get this error once.
2215 # FIXME: should display a stack of nested variables
2216 # as context when $var != $subvar.
2217 err_var ($var, "linker flags such as '$val' belong in "
2218 . "'${prefix}LDFLAGS'");
2222 elsif ($val !~ /^\@.*\@$/)
2224 # Assume we have a file of some sort, and output it into the
2225 # dependency variable. Autoconf substitutions are not output;
2226 # rarely is a new dependency substituted into e.g. foo_LDADD
2227 # -- but bad things (e.g. -lX11) are routinely substituted.
2228 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2229 # and handled specially below.
2232 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2234 handle_LIBOBJS ($subvar, $cond, $1);
2238 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2240 handle_ALLOCA ($subvar, $cond, $1);
2249 return $seen_libobjs;
2252 # handle_LIBOBJS_or_ALLOCA ($VAR)
2253 # -------------------------------
2254 # Definitions common to LIBOBJS and ALLOCA.
2255 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2256 sub handle_LIBOBJS_or_ALLOCA ($)
2262 # If LIBOBJS files must be built in another directory we have
2263 # to define LIBOBJDIR and ensure the files get cleaned.
2264 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2265 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2266 if ($config_libobj_dir
2267 && $relative_dir ne $config_libobj_dir)
2269 if (option 'subdir-objects')
2271 # In the top-level Makefile we do not use $(top_builddir), because
2272 # we are already there, and since the targets are built without
2273 # a $(top_builddir), it helps BSD Make to match them with
2275 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2276 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2277 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2278 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2279 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2280 # be created by libtool as a side-effect of creating LTLIBOBJS).
2281 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2285 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2286 . " 'subdir-objects' is not set");
2293 sub handle_LIBOBJS ($$$)
2295 my ($var, $cond, $lt) = @_;
2296 my $myobjext = $lt ? 'lo' : 'o';
2299 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2300 if ! keys %libsources;
2302 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2304 foreach my $iter (keys %libsources)
2306 if ($iter =~ /\.[cly]$/)
2308 &saw_extension ($&);
2309 &saw_extension ('.c');
2312 if ($iter =~ /\.h$/)
2314 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2316 elsif ($iter ne 'alloca.c')
2318 my $rewrite = $iter;
2319 $rewrite =~ s/\.c$/.P$myobjext/;
2320 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2321 $rewrite = "^" . quotemeta ($iter) . "\$";
2322 # Only require the file if it is not a built source.
2323 my $bs = var ('BUILT_SOURCES');
2324 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2326 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2332 sub handle_ALLOCA ($$$)
2334 my ($var, $cond, $lt) = @_;
2335 my $myobjext = $lt ? 'lo' : 'o';
2337 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2339 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2340 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2341 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2342 &saw_extension ('.c');
2345 # Canonicalize the input parameter
2349 $string =~ tr/A-Za-z0-9_\@/_/c;
2353 # Canonicalize a name, and check to make sure the non-canonical name
2354 # is never used. Returns canonical name. Arguments are name and a
2355 # list of suffixes to check for.
2356 sub check_canonical_spelling
2358 my ($name, @suffixes) = @_;
2360 my $xname = &canonicalize ($name);
2361 if ($xname ne $name)
2363 foreach my $xt (@suffixes)
2365 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2375 # Set up the compile suite.
2376 sub handle_compile ()
2378 return if ! $must_handle_compiled_objects;
2381 my $default_includes = '';
2382 if (! option 'nostdinc')
2384 my @incs = ('-I.', subst ('am__isrc'));
2386 my $var = var 'CONFIG_HEADER';
2389 foreach my $hdr (split (' ', $var->variable_value))
2391 push @incs, '-I' . dirname ($hdr);
2394 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2395 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2396 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2397 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2398 # to just put @am__isrc@ right after '-I.', without a space.
2399 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2402 my (@mostly_rms, @dist_rms);
2403 foreach my $item (sort keys %compile_clean_files)
2405 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2407 push (@mostly_rms, "\t-rm -f $item");
2409 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2411 push (@dist_rms, "\t-rm -f $item");
2415 prog_error 'invalid entry in %compile_clean_files';
2419 my ($coms, $vars, $rules) =
2420 &file_contents_internal (1, "$libdir/am/compile.am",
2421 new Automake::Location,
2422 ('DEFAULT_INCLUDES' => $default_includes,
2423 'MOSTLYRMS' => join ("\n", @mostly_rms),
2424 'DISTRMS' => join ("\n", @dist_rms)));
2425 $output_vars .= $vars;
2426 $output_rules .= "$coms$rules";
2431 # Handle libtool rules.
2434 return unless var ('LIBTOOL');
2436 # Libtool requires some files, but only at top level.
2437 # (Starting with Libtool 2.0 we do not have to bother. These
2438 # requirements are done with AC_REQUIRE_AUX_FILE.)
2439 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2440 if $relative_dir eq '.' && ! $libtool_new_api;
2443 foreach my $item (sort keys %libtool_clean_directories)
2445 my $dir = ($item eq '.') ? '' : "$item/";
2446 # .libs is for Unix, _libs for DOS.
2447 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2450 check_user_variables 'LIBTOOLFLAGS';
2452 # Output the libtool compilation rules.
2453 $output_rules .= &file_contents ('libtool',
2454 new Automake::Location,
2455 LTRMS => join ("\n", @libtool_rms));
2458 # handle_programs ()
2459 # ------------------
2460 # Handle C programs.
2463 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2464 'bin', 'sbin', 'libexec', 'pkglibexec',
2466 return if ! @proglist;
2467 $must_handle_compiled_objects = 1;
2469 my $seen_global_libobjs =
2470 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2472 foreach my $pair (@proglist)
2474 my ($where, $one_file) = @$pair;
2476 my $seen_libobjs = 0;
2477 my $obj = '.$(OBJEXT)';
2479 $known_programs{$one_file} = $where;
2481 # Canonicalize names and check for misspellings.
2482 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2483 '_SOURCES', '_OBJECTS',
2486 $where->push_context ("while processing program '$one_file'");
2487 $where->set (INTERNAL->get);
2489 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2490 NONLIBTOOL => 1, LIBTOOL => 0);
2492 if (var ($xname . "_LDADD"))
2494 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2498 # User didn't define prog_LDADD override. So do it.
2499 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2501 # This does a bit too much work. But we need it to
2502 # generate _DEPENDENCIES when appropriate.
2505 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2509 reject_var ($xname . '_LIBADD',
2510 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2512 set_seen ($xname . '_DEPENDENCIES');
2513 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2514 set_seen ($xname . '_LDFLAGS');
2516 # Determine program to use for link.
2517 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2518 $vlink = verbose_flag ($vlink || 'GEN');
2520 # If the resulting program lies into a subdirectory,
2521 # make sure this directory will exist.
2522 my $dirstamp = require_build_directory_maybe ($one_file);
2524 $libtool_clean_directories{dirname ($one_file)} = 1;
2526 $output_rules .= &file_contents ('program',
2528 PROGRAM => $one_file,
2532 DIRSTAMP => $dirstamp,
2533 EXEEXT => '$(EXEEXT)');
2535 if ($seen_libobjs || $seen_global_libobjs)
2537 if (var ($xname . '_LDADD'))
2539 &check_libobjs_sources ($xname, $xname . '_LDADD');
2541 elsif (var ('LDADD'))
2543 &check_libobjs_sources ($xname, 'LDADD');
2550 # handle_libraries ()
2551 # -------------------
2553 sub handle_libraries
2555 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2556 'lib', 'pkglib', 'noinst', 'check');
2557 return if ! @liblist;
2558 $must_handle_compiled_objects = 1;
2560 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2565 my $var = rvar ($prefix[0] . '_LIBRARIES');
2566 $var->requires_variables ('library used', 'RANLIB');
2569 &define_variable ('AR', 'ar', INTERNAL);
2570 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2571 &define_verbose_tagvar ('AR');
2573 foreach my $pair (@liblist)
2575 my ($where, $onelib) = @$pair;
2577 my $seen_libobjs = 0;
2578 # Check that the library fits the standard naming convention.
2579 my $bn = basename ($onelib);
2580 if ($bn !~ /^lib.*\.a$/)
2582 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2583 my $suggestion = dirname ($onelib) . "/$bn";
2584 $suggestion =~ s|^\./||g;
2585 msg ('error-gnu/warn', $where,
2586 "'$onelib' is not a standard library name\n"
2587 . "did you mean '$suggestion'?")
2590 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2592 $where->push_context ("while processing library '$onelib'");
2593 $where->set (INTERNAL->get);
2595 my $obj = '.$(OBJEXT)';
2597 # Canonicalize names and check for misspellings.
2598 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2599 '_OBJECTS', '_DEPENDENCIES',
2602 if (! var ($xlib . '_AR'))
2604 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2607 # Generate support for conditional object inclusion in
2609 if (var ($xlib . '_LIBADD'))
2611 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2618 &define_variable ($xlib . "_LIBADD", '', $where);
2621 reject_var ($xlib . '_LDADD',
2622 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2624 # Make sure we at look at this.
2625 set_seen ($xlib . '_DEPENDENCIES');
2626 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2628 &handle_source_transform ($xlib, $onelib, $obj, $where,
2629 NONLIBTOOL => 1, LIBTOOL => 0);
2631 # If the resulting library lies into a subdirectory,
2632 # make sure this directory will exist.
2633 my $dirstamp = require_build_directory_maybe ($onelib);
2634 my $verbose = verbose_flag ('AR');
2635 my $silent = silent_flag ();
2637 $output_rules .= &file_contents ('library',
2639 VERBOSE => $verbose,
2643 DIRSTAMP => $dirstamp);
2647 if (var ($xlib . '_LIBADD'))
2649 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2655 msg ('extra-portability', $where,
2656 "'$onelib': linking libraries using a non-POSIX\n"
2657 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2663 # handle_ltlibraries ()
2664 # ---------------------
2665 # Handle shared libraries.
2666 sub handle_ltlibraries
2668 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2669 'noinst', 'lib', 'pkglib', 'check');
2670 return if ! @liblist;
2671 $must_handle_compiled_objects = 1;
2673 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2678 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2679 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2683 my %instsubdirs = ();
2685 my %liblocations = (); # Location (in Makefile.am) of each library.
2687 foreach my $key (@prefix)
2689 # Get the installation directory of each library.
2691 my $strip_subdir = 1;
2692 if ($dir =~ /^nobase_/)
2694 $dir =~ s/^nobase_//;
2697 my $var = rvar ($key . '_LTLIBRARIES');
2699 # We reject libraries which are installed in several places
2700 # in the same condition, because we can only specify one
2702 $var->traverse_recursively
2705 my ($var, $val, $cond, $full_cond) = @_;
2706 my $hcond = $full_cond->human;
2707 my $where = $var->rdef ($cond)->location;
2709 $ldir = '/' . dirname ($val)
2710 if (!$strip_subdir);
2711 # A library cannot be installed in different directories
2712 # in overlapping conditions.
2713 if (exists $instconds{$val})
2716 $instconds{$val}->ambiguous_p ($val, $full_cond);
2720 error ($where, $msg, partial => 1);
2721 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2722 $dirtxt = "built for '$dir'"
2723 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2725 $full_cond->true ? "" : " in condition $hcond";
2727 error ($where, "'$val' should be $dirtxt$dircond ...",
2730 my $hacond = $acond->human;
2731 my $adir = $instdirs{$val}{$acond};
2732 my $adirtxt = "installed in '$adir'";
2733 $adirtxt = "built for '$adir'"
2734 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2735 || $adir eq 'check');
2736 my $adircond = $acond->true ? "" : " in condition $hacond";
2738 my $onlyone = ($dir ne $adir) ?
2739 ("\nLibtool libraries can be built for only one "
2740 . "destination") : "";
2742 error ($liblocations{$val}{$acond},
2743 "... and should also be $adirtxt$adircond.$onlyone");
2749 $instconds{$val} = new Automake::DisjConditions;
2751 $instdirs{$val}{$full_cond} = $dir;
2752 $instsubdirs{$val}{$full_cond} = $ldir;
2753 $liblocations{$val}{$full_cond} = $where;
2754 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2760 skip_ac_subst => 1);
2763 foreach my $pair (@liblist)
2765 my ($where, $onelib) = @$pair;
2767 my $seen_libobjs = 0;
2770 # Canonicalize names and check for misspellings.
2771 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2772 '_SOURCES', '_OBJECTS',
2775 # Check that the library fits the standard naming convention.
2776 my $libname_rx = '^lib.*\.la';
2777 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2778 my $ldvar2 = var ('LDFLAGS');
2779 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2780 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2782 # Relax name checking for libtool modules.
2783 $libname_rx = '\.la';
2786 my $bn = basename ($onelib);
2787 if ($bn !~ /$libname_rx$/)
2789 my $type = 'library';
2790 if ($libname_rx eq '\.la')
2792 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2797 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2799 my $suggestion = dirname ($onelib) . "/$bn";
2800 $suggestion =~ s|^\./||g;
2801 msg ('error-gnu/warn', $where,
2802 "'$onelib' is not a standard libtool $type name\n"
2803 . "did you mean '$suggestion'?")
2806 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2808 $where->push_context ("while processing Libtool library '$onelib'");
2809 $where->set (INTERNAL->get);
2811 # Make sure we look at these.
2812 set_seen ($xlib . '_LDFLAGS');
2813 set_seen ($xlib . '_DEPENDENCIES');
2814 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2816 # Generate support for conditional object inclusion in
2818 if (var ($xlib . '_LIBADD'))
2820 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2827 &define_variable ($xlib . "_LIBADD", '', $where);
2830 reject_var ("${xlib}_LDADD",
2831 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2834 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2835 NONLIBTOOL => 0, LIBTOOL => 1);
2837 # Determine program to use for link.
2838 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2839 $vlink = verbose_flag ($vlink || 'GEN');
2841 my $rpathvar = "am_${xlib}_rpath";
2842 my $rpath = "\$($rpathvar)";
2843 foreach my $rcond ($instconds{$onelib}->conds)
2846 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2847 || $instdirs{$onelib}{$rcond} eq 'noinst'
2848 || $instdirs{$onelib}{$rcond} eq 'check')
2850 # It's an EXTRA_ library, so we can't specify -rpath,
2851 # because we don't know where the library will end up.
2852 # The user probably knows, but generally speaking automake
2853 # doesn't -- and in fact configure could decide
2854 # dynamically between two different locations.
2859 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2860 $val .= $instsubdirs{$onelib}{$rcond}
2861 if defined $instsubdirs{$onelib}{$rcond};
2865 # If $rcond is true there is only one condition and
2866 # there is no point defining an helper variable.
2871 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2875 # If the resulting library lies into a subdirectory,
2876 # make sure this directory will exist.
2877 my $dirstamp = require_build_directory_maybe ($onelib);
2879 # Remember to cleanup .libs/ in this directory.
2880 my $dirname = dirname $onelib;
2881 $libtool_clean_directories{$dirname} = 1;
2883 $output_rules .= &file_contents ('ltlibrary',
2885 LTLIBRARY => $onelib,
2886 XLTLIBRARY => $xlib,
2890 DIRSTAMP => $dirstamp);
2893 if (var ($xlib . '_LIBADD'))
2895 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2901 msg ('extra-portability', $where,
2902 "'$onelib': linking libtool libraries using a non-POSIX\n"
2903 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2908 # See if any _SOURCES variable were misspelled.
2911 # It is ok if the user sets this particular variable.
2912 set_seen 'AM_LDFLAGS';
2914 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2916 foreach my $var (variables $primary)
2918 my $varname = $var->name;
2919 # A configure variable is always legitimate.
2920 next if exists $configure_vars{$varname};
2922 for my $cond ($var->conditions->conds)
2924 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2925 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2926 . " program or\nlibrary has '$1' as canonical name"
2927 . " (possible typo)")
2928 unless $var->rdef ($cond)->seen;
2938 # NOTE we no longer automatically clean SCRIPTS, because it is
2939 # useful to sometimes distribute scripts verbatim. This happens
2940 # e.g. in Automake itself.
2941 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2942 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2949 ## ------------------------ ##
2950 ## Handling Texinfo files. ##
2951 ## ------------------------ ##
2953 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2954 # &scan_texinfo_file ($FILENAME)
2955 # ------------------------------
2956 # $OUTFILE - name of the info file produced by $FILENAME.
2957 # $VFILE - name of the version.texi file used (undef if none).
2958 # @CLEAN_FILES - list of byproducts (indexes etc.)
2959 sub scan_texinfo_file ($)
2961 my ($filename) = @_;
2963 # Some of the following extensions are always created, no matter
2964 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2965 # are only created when they are used. We used to scan $FILENAME
2966 # for their use, but that is not enough: they could be used in
2967 # included files. We can't scan included files because we don't
2968 # know the include path. Therefore we always erase these files, no
2969 # matter whether they are used or not.
2971 # (tmp is only created if an @macro is used and a certain e-TeX
2972 # feature is not available.)
2973 my %clean_suffixes =
2974 map { $_ => 1 } (qw(aux log toc tmp
2980 pg pgs)); # grep 'new.*index' texinfo.tex
2982 my $texi = new Automake::XFile "< $filename";
2983 verb "reading $filename";
2985 my ($outfile, $vfile);
2986 while ($_ = $texi->getline)
2988 if (/^\@setfilename +(\S+)/)
2990 # Honor only the first @setfilename. (It's possible to have
2991 # more occurrences later if the manual shows examples of how
2992 # to use @setfilename...)
2996 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2998 error ("$filename:$.",
2999 "output '$outfile' has unrecognized extension");
3003 # A "version.texi" file is actually any file whose name matches
3005 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3010 # Try to find new or unused indexes.
3012 # Creating a new category of index.
3013 elsif (/^\@def(code)?index (\w+)/)
3015 $clean_suffixes{$2} = 1;
3016 $clean_suffixes{"$2s"} = 1;
3019 # Merging an index into an another.
3020 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3022 delete $clean_suffixes{"$2s"};
3023 $clean_suffixes{"$3s"} = 1;
3030 err_am "'$filename' missing \@setfilename";
3034 my $infobase = basename ($filename);
3035 $infobase =~ s/\.te?xi(nfo)?$//;
3036 return ($outfile, $vfile,
3037 map { "$infobase.$_" } (sort keys %clean_suffixes));
3041 # ($DIRSTAMP, @CLEAN_FILES)
3042 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3043 # ------------------------------------------------------------------
3044 # SOURCE - the source Texinfo file
3045 # DEST - the destination Info file
3046 # INSRC - whether DEST should be built in the source tree
3047 # DEPENDENCIES - known dependencies
3048 sub output_texinfo_build_rules ($$$@)
3050 my ($source, $dest, $insrc, @deps) = @_;
3052 # Split 'a.texi' into 'a' and '.texi'.
3053 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3054 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3059 # We can output two kinds of rules: the "generic" rules use Make
3060 # suffix rules and are appropriate when $source and $dest do not lie
3061 # in a sub-directory; the "specific" rules are needed in the other
3064 # The former are output only once (this is not really apparent here,
3065 # but just remember that some logic deeper in Automake will not
3066 # output the same rule twice); while the later need to be output for
3067 # each Texinfo source.
3070 my $sdir = dirname $source;
3071 if ($sdir eq '.' && dirname ($dest) eq '.')
3074 $makeinfoflags = '-I $(srcdir)';
3079 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3082 # A directory can contain two kinds of info files: some built in the
3083 # source tree, and some built in the build tree. The rules are
3084 # different in each case. However we cannot output two different
3085 # set of generic rules. Because in-source builds are more usual, we
3086 # use generic rules in this case and fall back to "specific" rules
3087 # for build-dir builds. (It should not be a problem to invert this
3089 $generic = 0 unless $insrc;
3091 # We cannot use a suffix rule to build info files with an empty
3092 # extension. Otherwise we would output a single suffix inference
3093 # rule, with separate dependencies, as in
3097 # foo.info: foo.texi
3099 # which confuse Solaris make. (See the Autoconf manual for
3100 # details.) Therefore we use a specific rule in this case. This
3101 # applies to info files only (dvi and pdf files always have an
3103 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3105 # If the resulting file lie into a subdirectory,
3106 # make sure this directory will exist.
3107 my $dirstamp = require_build_directory_maybe ($dest);
3109 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3111 $output_rules .= file_contents ('texibuild',
3112 new Automake::Location,
3113 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3114 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3115 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3117 DEST_PREFIX => $dpfx,
3118 DEST_INFO_PREFIX => $dipfx,
3119 DEST_SUFFIX => $dsfx,
3120 DIRSTAMP => $dirstamp,
3121 GENERIC => $generic,
3122 GENERIC_INFO => $generic_info,
3124 MAKEINFOFLAGS => $makeinfoflags,
3125 SILENT => silent_flag(),
3128 SOURCE_INFO => ($generic_info
3130 SOURCE_REAL => $source,
3131 SOURCE_SUFFIX => $ssfx,
3132 TEXIQUIET => verbose_flag('texinfo'),
3133 TEXIDEVNULL => verbose_flag('texidevnull'),
3135 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3139 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3140 # handle_texinfo_helper ($info_texinfos)
3141 # --------------------------------------
3142 # Handle all Texinfo source; helper for handle_texinfo.
3143 sub handle_texinfo_helper ($)
3145 my ($info_texinfos) = @_;
3146 my (@infobase, @info_deps_list, @texi_deps);
3149 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3151 # Build a regex matching user-cleaned files.
3152 my $d = var 'DISTCLEANFILES';
3153 my $c = var 'CLEANFILES';
3155 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3156 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3157 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3158 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3161 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3163 my $infobase = $texi;
3164 $infobase =~ s/\.(txi|texinfo|texi)$//;
3166 if ($infobase eq $texi)
3168 # FIXME: report line number.
3169 err_am "texinfo file '$texi' has unrecognized extension";
3173 push @infobase, $infobase;
3175 # If 'version.texi' is referenced by input file, then include
3176 # automatic versioning capability.
3177 my ($out_file, $vtexi, @clean_files) =
3178 scan_texinfo_file ("$relative_dir/$texi")
3180 push (@mostly_cleans, @clean_files);
3182 # If the Texinfo source is in a subdirectory, create the
3183 # resulting info in this subdirectory. If it is in the current
3184 # directory, try hard to not prefix "./" because it breaks the
3186 my $outdir = dirname ($texi) . '/';
3187 $outdir = "" if $outdir eq './';
3188 $out_file = $outdir . $out_file;
3190 # Until Automake 1.6.3, .info files were built in the
3191 # source tree. This was an obstacle to the support of
3192 # non-distributed .info files, and non-distributed .texi
3195 # * Non-distributed .texi files is important in some packages
3196 # where .texi files are built at make time, probably using
3197 # other binaries built in the package itself, maybe using
3198 # tools or information found on the build host. Because
3199 # these files are not distributed they are always rebuilt
3200 # at make time; they should therefore not lie in the source
3201 # directory. One plan was to support this using
3202 # nodist_info_TEXINFOS or something similar. (Doing this
3203 # requires some sanity checks. For instance Automake should
3205 # dist_info_TEXINFOS = foo.texi
3206 # nodist_foo_TEXINFOS = included.texi
3207 # because a distributed file should never depend on a
3208 # non-distributed file.)
3210 # * If .texi files are not distributed, then .info files should
3211 # not be distributed either. There are also cases where one
3212 # wants to distribute .texi files, but does not want to
3213 # distribute the .info files. For instance the Texinfo package
3214 # distributes the tool used to build these files; it would
3215 # be a waste of space to distribute them. It's not clear
3216 # which syntax we should use to indicate that .info files should
3217 # not be distributed. Akim Demaille suggested that eventually
3218 # we switch to a new syntax:
3219 # | Maybe we should take some inspiration from what's already
3220 # | done in the rest of Automake. Maybe there is too much
3221 # | syntactic sugar here, and you want
3222 # | nodist_INFO = bar.info
3223 # | dist_bar_info_SOURCES = bar.texi
3224 # | bar_texi_DEPENDENCIES = foo.texi
3225 # | with a bit of magic to have bar.info represent the whole
3226 # | bar*info set. That's a lot more verbose that the current
3227 # | situation, but it is # not new, hence the user has less
3230 # | But there is still too much room for meaningless specs:
3231 # | nodist_INFO = bar.info
3232 # | dist_bar_info_SOURCES = bar.texi
3233 # | dist_PS = bar.ps something-written-by-hand.ps
3234 # | nodist_bar_ps_SOURCES = bar.texi
3235 # | bar_texi_DEPENDENCIES = foo.texi
3236 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3238 # Back to the point, it should be clear that in order to support
3239 # non-distributed .info files, we need to build them in the
3240 # build tree, not in the source tree (non-distributed .texi
3241 # files are less of a problem, because we do not output build
3242 # rules for them). In Automake 1.7 .info build rules have been
3243 # largely cleaned up so that .info files get always build in the
3244 # build tree, even when distributed. The idea was that
3245 # (1) if during a VPATH build the .info file was found to be
3246 # absent or out-of-date (in the source tree or in the
3247 # build tree), Make would rebuild it in the build tree.
3248 # If an up-to-date source-tree of the .info file existed,
3249 # make would not rebuild it in the build tree.
3250 # (2) having two copies of .info files, one in the source tree
3251 # and one (newer) in the build tree is not a problem
3252 # because 'make dist' always pick files in the build tree
3254 # However it turned out the be a bad idea for several reasons:
3255 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3256 # like GNU Make on point (1) above. These implementations
3257 # of Make would always rebuild .info files in the build
3258 # tree, even if such files were up to date in the source
3259 # tree. Consequently, it was impossible to perform a VPATH
3260 # build of a package containing Texinfo files using these
3261 # Make implementations.
3262 # (Refer to the Autoconf Manual, section "Limitation of
3263 # Make", paragraph "VPATH", item "target lookup", for
3264 # an account of the differences between these
3266 # * The GNU Coding Standards require these files to be built
3267 # in the source-tree (when they are distributed, that is).
3268 # * Keeping a fresher copy of distributed files in the
3269 # build tree can be annoying during development because
3270 # - if the files is kept under CVS, you really want it
3271 # to be updated in the source tree
3272 # - it is confusing that 'make distclean' does not erase
3273 # all files in the build tree.
3275 # Consequently, starting with Automake 1.8, .info files are
3276 # built in the source tree again. Because we still plan to
3277 # support non-distributed .info files at some point, we
3278 # have a single variable ($INSRC) that controls whether
3279 # the current .info file must be built in the source tree
3280 # or in the build tree. Actually this variable is switched
3281 # off for .info files that appear to be cleaned; this is
3282 # for backward compatibility with package such as Texinfo,
3283 # which do things like
3284 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3285 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3286 # # Do not create info files for distribution.
3288 # in order not to distribute .info files.
3289 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3291 my $soutdir = '$(srcdir)/' . $outdir;
3292 $outdir = $soutdir if $insrc;
3294 # If user specified file_TEXINFOS, then use that as explicit
3297 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3299 my $canonical = canonicalize ($infobase);
3300 if (var ($canonical . "_TEXINFOS"))
3302 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3303 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3306 my ($dirstamp, @cfiles) =
3307 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3308 push (@texi_cleans, @cfiles);
3310 push (@info_deps_list, $out_file);
3312 # If a vers*.texi file is needed, emit the rule.
3315 err_am ("'$vtexi', included in '$texi', "
3316 . "also included in '$versions{$vtexi}'")
3317 if defined $versions{$vtexi};
3318 $versions{$vtexi} = $texi;
3320 # We number the stamp-vti files. This is doable since the
3321 # actual names don't matter much. We only number starting
3322 # with the second one, so that the common case looks nice.
3323 my $vti = ($done ? $done : 'vti');
3326 # This is ugly, but it is our historical practice.
3327 if ($config_aux_dir_set_in_configure_ac)
3329 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3334 require_file_with_macro (TRUE, 'info_TEXINFOS',
3335 FOREIGN, 'mdate-sh');
3339 if ($config_aux_dir_set_in_configure_ac)
3341 $conf_dir = "$am_config_aux_dir/";
3345 $conf_dir = '$(srcdir)/';
3347 $output_rules .= file_contents ('texi-vers',
3348 new Automake::Location,
3351 STAMPVTI => "${soutdir}stamp-$vti",
3352 VTEXI => "$soutdir$vtexi",
3354 DIRSTAMP => $dirstamp);
3358 # Handle location of texinfo.tex.
3359 my $need_texi_file = 0;
3361 if (var ('TEXINFO_TEX'))
3363 # The user defined TEXINFO_TEX so assume he knows what he is
3365 $texinfodir = ('$(srcdir)/'
3366 . dirname (variable_value ('TEXINFO_TEX')));
3368 elsif (option 'cygnus')
3370 $texinfodir = '$(top_srcdir)/../texinfo';
3371 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3373 elsif ($config_aux_dir_set_in_configure_ac)
3375 $texinfodir = $am_config_aux_dir;
3376 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3377 $need_texi_file = 2; # so that we require_conf_file later
3381 $texinfodir = '$(srcdir)';
3382 $need_texi_file = 1;
3384 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3386 push (@dist_targets, 'dist-info');
3388 if (! option 'no-installinfo')
3390 # Make sure documentation is made and installed first. Use
3391 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3392 # get run twice during "make all".
3393 unshift (@all, '$(INFO_DEPS)');
3396 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3397 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3398 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3399 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3401 # This next isn't strictly needed now -- the places that look here
3402 # could easily be changed to look in info_TEXINFOS. But this is
3403 # probably better, in case noinst_TEXINFOS is ever supported.
3404 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3406 # Do some error checking. Note that this file is not required
3407 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3409 if ($need_texi_file && ! option 'no-texinfo.tex')
3411 if ($need_texi_file > 1)
3413 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3418 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3423 return (makefile_wrap ("", "\t ", @mostly_cleans),
3424 makefile_wrap ("", "\t ", @texi_cleans),
3425 makefile_wrap ("", "\t ", @maint_cleans));
3431 # Handle all Texinfo source.
3432 sub handle_texinfo ()
3434 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3435 # FIXME: I think this is an obsolete future feature name.
3436 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3438 my $info_texinfos = var ('info_TEXINFOS');
3439 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3442 define_verbose_texinfo;
3443 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3449 $output_rules .= file_contents ('texinfos',
3450 new Automake::Location,
3451 AM_V_DVIPS => verbose_flag('DVIPS'),
3452 MOSTLYCLEAN => $mostlyclean,
3453 TEXICLEAN => $clean,
3454 MAINTCLEAN => $maintclean,
3455 'LOCAL-TEXIS' => !!$info_texinfos,
3456 TEXIQUIET => verbose_flag('texinfo'));
3460 # Handle any man pages.
3461 sub handle_man_pages
3463 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3465 # Find all the sections in use. We do this by first looking for
3466 # "standard" sections, and then looking for any additional
3467 # sections used in man_MANS.
3468 my (%sections, %notrans_sections, %trans_sections,
3469 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3470 # We handle nodist_ for uniformity. man pages aren't distributed
3471 # by default so it isn't actually very important.
3472 foreach my $npfx ('', 'notrans_')
3474 foreach my $pfx ('', 'dist_', 'nodist_')
3476 # Add more sections as needed.
3477 foreach my $section ('0'..'9', 'n', 'l')
3479 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3482 $sections{$section} = 1;
3483 $varname = '$(' . $varname . ')';
3484 if ($npfx eq 'notrans_')
3486 $notrans_sections{$section} = 1;
3487 $notrans_sect_vars{$varname} = 1;
3491 $trans_sections{$section} = 1;
3492 $trans_sect_vars{$varname} = 1;
3495 &push_dist_common ($varname)
3500 my $varname = $npfx . $pfx . 'man_MANS';
3501 my $var = var ($varname);
3504 foreach ($var->value_as_list_recursive)
3506 # A page like 'foo.1c' goes into man1dir.
3507 if (/\.([0-9a-z])([a-z]*)$/)
3510 if ($npfx eq 'notrans_')
3512 $notrans_sections{$1} = 1;
3516 $trans_sections{$1} = 1;
3521 $varname = '$(' . $varname . ')';
3522 if ($npfx eq 'notrans_')
3524 $notrans_vars{$varname} = 1;
3528 $trans_vars{$varname} = 1;
3530 &push_dist_common ($varname)
3536 return unless %sections;
3540 # Build section independent variables.
3541 my $have_notrans = %notrans_vars;
3542 my @notrans_list = sort keys %notrans_vars;
3543 my $have_trans = %trans_vars;
3544 my @trans_list = sort keys %trans_vars;
3546 # Now for each section, generate an install and uninstall rule.
3547 # Sort sections so output is deterministic.
3548 foreach my $section (sort keys %sections)
3550 # Build section dependent variables.
3551 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3552 my $trans_mans = $have_trans || exists $trans_sections{$section};
3553 my (%notrans_this_sect, %trans_this_sect);
3554 my $expr = 'man' . $section . '_MANS';
3555 foreach my $varname (keys %notrans_sect_vars)
3557 if ($varname =~ /$expr/)
3559 $notrans_this_sect{$varname} = 1;
3562 foreach my $varname (keys %trans_sect_vars)
3564 if ($varname =~ /$expr/)
3566 $trans_this_sect{$varname} = 1;
3569 my @notrans_sect_list = sort keys %notrans_this_sect;
3570 my @trans_sect_list = sort keys %trans_this_sect;
3571 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3572 keys %notrans_this_sect, keys %trans_this_sect);
3573 my @deps = sort @unsorted_deps;
3574 $output_rules .= &file_contents ('mans',
3575 new Automake::Location,
3576 SECTION => $section,
3578 NOTRANS_MANS => $notrans_mans,
3579 NOTRANS_SECT_LIST => "@notrans_sect_list",
3580 HAVE_NOTRANS => $have_notrans,
3581 NOTRANS_LIST => "@notrans_list",
3582 TRANS_MANS => $trans_mans,
3583 TRANS_SECT_LIST => "@trans_sect_list",
3584 HAVE_TRANS => $have_trans,
3585 TRANS_LIST => "@trans_list");
3588 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3589 keys %notrans_sect_vars, keys %trans_sect_vars);
3590 my @mans = sort @unsorted_deps;
3591 $output_vars .= file_contents ('mans-vars',
3592 new Automake::Location,
3595 push (@all, '$(MANS)')
3596 unless option 'no-installman';
3599 # Handle DATA variables.
3602 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3603 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3604 'ps', 'sysconf', 'sharedstate', 'localstate',
3605 'pkgdata', 'lisp', 'noinst', 'check');
3613 my @cscope_deps = ();
3614 if (var ('SUBDIRS'))
3616 $output_rules .= ("tags-recursive:\n"
3617 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3618 # Never fail here if a subdir fails; it
3620 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3621 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3623 push (@tag_deps, 'tags-recursive');
3624 &depend ('.PHONY', 'tags-recursive');
3625 &depend ('.MAKE', 'tags-recursive');
3627 $output_rules .= ("ctags-recursive:\n"
3628 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3629 # Never fail here if a subdir fails; it
3631 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3632 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3634 push (@ctag_deps, 'ctags-recursive');
3635 &depend ('.PHONY', 'ctags-recursive');
3636 &depend ('.MAKE', 'ctags-recursive');
3638 $output_rules .= ("cscopelist-recursive:\n"
3639 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3640 # Never fail here if a subdir fails; it
3642 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3643 . " && \$(MAKE) \$(AM_MAKEFLAGS) cscopelist); \\\n"
3645 push (@cscope_deps, 'cscopelist-recursive');
3646 &depend ('.PHONY', 'cscopelist-recursive');
3647 &depend ('.MAKE', 'cscopelist-recursive');
3650 if (&saw_sources_p (1)
3651 || var ('ETAGS_ARGS')
3655 foreach my $spec (@config_headers)
3657 my ($out, @ins) = split_config_file_spec ($spec);
3658 foreach my $in (@ins)
3660 # If the config header source is in this directory,
3662 push @config, basename ($in)
3663 if $relative_dir eq dirname ($in);
3666 $output_rules .= &file_contents ('tags',
3667 new Automake::Location,
3668 CONFIG => "@config",
3669 TAGSDIRS => "@tag_deps",
3670 CTAGSDIRS => "@ctag_deps",
3671 CSCOPEDIRS => "@cscope_deps");
3673 set_seen 'TAGS_DEPENDENCIES';
3675 elsif (reject_var ('TAGS_DEPENDENCIES',
3676 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3677 . " without\nsources or 'ETAGS_ARGS'"))
3682 # Every Makefile must define some sort of TAGS rule.
3683 # Otherwise, it would be possible for a top-level "make TAGS"
3684 # to fail because some subdirectory failed.
3685 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3686 # Ditto ctags and cscope.
3687 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3688 $output_rules .= "cscope cscopelist:\n\n";
3693 # user_phony_rule ($NAME)
3694 # -----------------------
3695 # Return false if rule $NAME does not exist. Otherwise,
3696 # declare it as phony, complete its definition (in case it is
3697 # conditional), and return its Automake::Rule instance.
3698 sub user_phony_rule ($)
3701 my $rule = rule $name;
3704 depend ('.PHONY', $name);
3705 # Define $NAME in all condition where it is not already defined,
3706 # so that it is always OK to depend on $NAME.
3707 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3709 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3711 $output_rules .= $c->subst_string . "$name:\n";
3719 # &for_dist_common ($A, $B)
3720 # -------------------------
3721 # Subroutine for &handle_dist: sort files to dist.
3723 # We put README first because it then becomes easier to make a
3724 # Usenet-compliant shar file (in these, README must be first).
3726 # FIXME: do more ordering of files here.
3740 # Handle 'dist' target.
3743 # Substitutions for distdir.am
3746 # Define DIST_SUBDIRS. This must always be done, regardless of the
3747 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3748 my $subdirs = var ('SUBDIRS');
3751 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3752 # to all possible directories, and use it. If DIST_SUBDIRS is
3753 # defined, just use it.
3755 # Note that we check DIST_SUBDIRS first on purpose, so that
3756 # we don't call has_conditional_contents for now reason.
3757 # (In the past one project used so many conditional subdirectories
3758 # that calling has_conditional_contents on SUBDIRS caused
3759 # automake to grow to 150Mb -- this should not happen with
3760 # the current implementation of has_conditional_contents,
3761 # but it's more efficient to avoid the call anyway.)
3762 if (var ('DIST_SUBDIRS'))
3765 elsif ($subdirs->has_conditional_contents)
3767 define_pretty_variable
3768 ('DIST_SUBDIRS', TRUE, INTERNAL,
3769 uniq ($subdirs->value_as_list_recursive));
3773 # We always define this because that is what 'distclean'
3775 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3780 # The remaining definitions are only required when a dist target is used.
3781 return if option 'no-dist';
3783 # At least one of the archive formats must be enabled.
3784 if ($relative_dir eq '.')
3786 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3787 $archive_defined ||=
3788 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3789 error (option 'no-dist-gzip',
3790 "no-dist-gzip specified but no dist-* specified,\n"
3791 . "at least one archive format must be enabled")
3792 unless $archive_defined;
3795 # Look for common files that should be included in distribution.
3796 # If the aux dir is set, and it does not have a Makefile.am, then
3797 # we check for these files there as well.
3799 if ($relative_dir eq '.'
3800 && $config_aux_dir_set_in_configure_ac)
3802 if (! &is_make_dir ($config_aux_dir))
3807 foreach my $cfile (@common_files)
3809 if (dir_has_case_matching_file ($relative_dir, $cfile)
3810 # The file might be absent, but if it can be built it's ok.
3813 &push_dist_common ($cfile);
3816 # Don't use 'elsif' here because a file might meaningfully
3817 # appear in both directories.
3818 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3820 &push_dist_common ("$config_aux_dir/$cfile")
3824 # We might copy elements from $configure_dist_common to
3825 # %dist_common if we think we need to. If the file appears in our
3826 # directory, we would have discovered it already, so we don't
3827 # check that. But if the file is in a subdir without a Makefile,
3828 # we want to distribute it here if we are doing '.'. Ugly!
3829 # Also, in some corner cases, it's possible that the following code
3830 # will cause the same file to appear in the $(DIST_COMMON) variables
3831 # of two distinct Makefiles; but this is not a problem, since the
3832 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3833 # file being distributed multiple times.
3834 # See also automake bug#9651.
3835 if ($relative_dir eq '.')
3837 foreach my $file (split (' ' , $configure_dist_common))
3839 my $dir = dirname ($file);
3840 push_dist_common ($file)
3841 if ($dir eq '.' || ! is_make_dir ($dir));
3845 # Files to distributed. Don't use ->value_as_list_recursive
3846 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3847 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3848 @dist_common = uniq (sort for_dist_common (@dist_common));
3849 variable_delete 'DIST_COMMON';
3850 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3852 # Now that we've processed DIST_COMMON, disallow further attempts
3854 $handle_dist_run = 1;
3856 # Scan EXTRA_DIST to see if we need to distribute anything from a
3857 # subdir. If so, add it to the list. I didn't want to do this
3858 # originally, but there were so many requests that I finally
3860 my $extra_dist = var ('EXTRA_DIST');
3862 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3863 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3865 # If the target 'dist-hook' exists, make sure it is run. This
3866 # allows users to do random weird things to the distribution
3867 # before it is packaged up.
3868 push (@dist_targets, 'dist-hook')
3869 if user_phony_rule 'dist-hook';
3870 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3872 my $flm = option ('filename-length-max');
3873 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3875 $output_rules .= &file_contents ('distdir',
3876 new Automake::Location,
3878 FILENAME_FILTER => $filename_filter);
3882 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3883 # -------------------------------------------------------
3884 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3885 # name. Use $WHERE as a location in the diagnostic, if any.
3886 sub check_directory ($$;$)
3888 my ($dir, $where, $reldir) = @_;
3889 $reldir = '.' unless defined $reldir;
3891 error $where, "required directory $reldir/$dir does not exist"
3892 unless -d "$reldir/$dir";
3894 # If an 'obj/' directory exists, BSD make will enter it before
3895 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3901 # % cat obj/Makefile
3907 # % pmake # BSD make
3910 msg ('portability', $where,
3911 "naming a subdirectory 'obj' causes troubles with BSD make")
3914 # 'aux' is probably the most important of the following forbidden name,
3915 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3916 msg ('portability', $where,
3917 "name '$dir' is reserved on W32 and DOS platforms")
3918 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3921 # check_directories_in_var ($VARIABLE)
3922 # ------------------------------------
3923 # Recursively check all items in variables $VARIABLE as directories
3924 sub check_directories_in_var ($)
3927 $var->traverse_recursively
3930 my ($var, $val, $cond, $full_cond) = @_;
3931 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3935 skip_ac_subst => 1);
3938 # &handle_subdirs ()
3939 # ------------------
3940 # Handle subdirectories.
3941 sub handle_subdirs ()
3943 my $subdirs = var ('SUBDIRS');
3947 check_directories_in_var $subdirs;
3949 my $dsubdirs = var ('DIST_SUBDIRS');
3950 check_directories_in_var $dsubdirs
3953 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3954 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3958 # ($REGEN, @DEPENDENCIES)
3961 # If aclocal.m4 creation is automated, return the list of its dependencies.
3962 sub scan_aclocal_m4 ()
3964 my $regen_aclocal = 0;
3966 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3967 set_seen 'CONFIGURE_DEPENDENCIES';
3969 if (-f 'aclocal.m4')
3971 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3973 my $aclocal = new Automake::XFile "< aclocal.m4";
3974 my $line = $aclocal->getline;
3975 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3980 if (set_seen ('ACLOCAL_M4_SOURCES'))
3982 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3983 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3984 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3985 . "It should be safe to simply remove it");
3988 # Note that it might be possible that aclocal.m4 doesn't exist but
3989 # should be auto-generated. This case probably isn't very
3992 return ($regen_aclocal, @ac_deps);
3996 # Helper function for substitute_ac_subst_variables.
3997 sub substitute_ac_subst_variables_worker($)
4000 return "\@$token\@" if var $token;
4001 return "\${$token\}";
4004 # substitute_ac_subst_variables ($TEXT)
4005 # -------------------------------------
4006 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4008 sub substitute_ac_subst_variables ($)
4011 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4016 # &prepend_srcdir (@INPUTS)
4017 # -------------------------
4018 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4019 # if an input file has a directory part the same as the current
4020 # directory, then the directory part is simply replaced by $(srcdir).
4021 # But if the directory part is different, then $(top_srcdir) is
4023 sub prepend_srcdir (@)
4028 foreach my $single (@inputs)
4030 if (dirname ($single) eq $relative_dir)
4032 push (@newinputs, '$(srcdir)/' . basename ($single));
4036 push (@newinputs, '$(top_srcdir)/' . $single);
4043 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4044 # ---------------------------------------------------
4045 # Compute a list of dependencies appropriate for the rebuild
4047 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4048 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4049 sub rewrite_inputs_into_dependencies ($@)
4051 my ($file, @inputs) = @_;
4056 # We cannot create dependencies on shell variables.
4057 next if (substitute_ac_subst_variables $i) =~ /\$/;
4059 if (exists $ac_config_files_location{$i} && $i ne $file)
4061 my $di = dirname $i;
4062 if ($di eq $relative_dir)
4066 # In the top-level Makefile we do not use $(top_builddir), because
4067 # we are already there, and since the targets are built without
4068 # a $(top_builddir), it helps BSD Make to match them with
4070 elsif ($relative_dir ne '.')
4072 $i = '$(top_builddir)/' . $i;
4077 msg ('error', $ac_config_files_location{$file},
4078 "required file '$i' not found")
4079 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4080 ($i) = prepend_srcdir ($i);
4081 push_dist_common ($i);
4090 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4091 # ------------------------------------------------------------------
4092 # Handle remaking and configure stuff.
4093 # We need the name of the input file, to do proper remaking rules.
4094 sub handle_configure ($$$@)
4096 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4098 prog_error 'empty @inputs'
4101 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4103 my $rel_makefile = basename $makefile;
4105 my $colon_infile = ':' . join (':', @inputs);
4106 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4107 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4108 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4109 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4110 @configure_deps, @aclocal_m4_deps,
4111 '$(top_srcdir)/' . $configure_ac);
4112 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4113 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4114 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4117 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4118 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4120 $output_rules .= file_contents
4122 new Automake::Location,
4123 MAKEFILE => $rel_makefile,
4124 'MAKEFILE-DEPS' => "@rewritten",
4125 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4126 'MAKEFILE-IN' => $rel_makefile_in,
4127 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4128 'MAKEFILE-IN-DEPS' => "@include_stack",
4129 'MAKEFILE-AM' => $rel_makefile_am,
4130 'AUTOMAKE-OPTIONS' => $automake_options,
4131 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4132 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4133 VERBOSE => verbose_flag ('GEN'));
4135 if ($relative_dir eq '.')
4137 &push_dist_common ('acconfig.h')
4141 # If we have a configure header, require it.
4143 my @distclean_config;
4144 foreach my $spec (@config_headers)
4147 # $CONFIG_H_PATH: config.h from top level.
4148 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4149 my $config_h_dir = dirname ($config_h_path);
4151 # If the header is in the current directory we want to build
4152 # the header here. Otherwise, if we're at the topmost
4153 # directory and the header's directory doesn't have a
4154 # Makefile, then we also want to build the header.
4155 if ($relative_dir eq $config_h_dir
4156 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4158 my ($cn_sans_dir, $stamp_dir);
4159 if ($relative_dir eq $config_h_dir)
4161 $cn_sans_dir = basename ($config_h_path);
4166 $cn_sans_dir = $config_h_path;
4167 if ($config_h_dir eq '.')
4173 $stamp_dir = $config_h_dir . '/';
4177 # This will also distribute all inputs.
4178 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4180 # Cannot define rebuild rules for filenames with shell variables.
4181 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4183 # Header defined in this directory.
4185 if (-f $config_h_path . '.top')
4187 push (@files, "$cn_sans_dir.top");
4189 if (-f $config_h_path . '.bot')
4191 push (@files, "$cn_sans_dir.bot");
4194 push_dist_common (@files);
4196 # For now, acconfig.h can only appear in the top srcdir.
4197 if (-f 'acconfig.h')
4199 push (@files, '$(top_srcdir)/acconfig.h');
4202 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4204 file_contents ('remake-hdr',
4205 new Automake::Location,
4207 CONFIG_H => $cn_sans_dir,
4208 CONFIG_HIN => $ins[0],
4209 CONFIG_H_DEPS => "@ins",
4210 CONFIG_H_PATH => $config_h_path,
4213 push @distclean_config, $cn_sans_dir, $stamp;
4217 $output_rules .= file_contents ('clean-hdr',
4218 new Automake::Location,
4219 FILES => "@distclean_config")
4220 if @distclean_config;
4222 # Distribute and define mkinstalldirs only if it is already present
4223 # in the package, for backward compatibility (some people may still
4224 # use $(mkinstalldirs)).
4225 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4228 # Use require_file so that any existing script gets updated
4229 # by --force-missing.
4230 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4231 define_variable ('mkinstalldirs',
4232 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4236 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4237 # at least one argument, and $(mkinstalldirs) used to work
4238 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4239 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4242 reject_var ('CONFIG_HEADER',
4243 "'CONFIG_HEADER' is an anachronism; now determined "
4244 . "automatically\nfrom '$configure_ac'");
4247 foreach my $spec (@config_headers)
4249 my ($out, @ins) = split_config_file_spec ($spec);
4250 # Generate CONFIG_HEADER define.
4251 if ($relative_dir eq dirname ($out))
4253 push @config_h, basename ($out);
4257 push @config_h, "\$(top_builddir)/$out";
4260 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4263 # Now look for other files in this directory which must be remade
4264 # by config.status, and generate rules for them.
4265 my @actual_other_files = ();
4266 # These get cleaned only in a VPATH build.
4267 my @actual_other_vpath_files = ();
4268 foreach my $lfile (@other_input_files)
4272 if ($lfile =~ /^([^:]*):(.*)$/)
4274 # This is the ":" syntax of AC_OUTPUT.
4276 @inputs = split (':', $2);
4282 @inputs = $file . '.in';
4285 # Automake files should not be stored in here, but in %MAKE_LIST.
4286 prog_error ("$lfile in \@other_input_files\n"
4287 . "\@other_input_files = (@other_input_files)")
4288 if -f $file . '.am';
4290 my $local = basename ($file);
4292 # We skip files that aren't in this directory. However, if
4293 # the file's directory does not have a Makefile, and we are
4294 # currently doing '.', then we create a rule to rebuild the
4295 # file in the subdir.
4296 my $fd = dirname ($file);
4297 if ($fd ne $relative_dir)
4299 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4309 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4311 # Cannot output rules for shell variables.
4312 next if (substitute_ac_subst_variables $local) =~ /\$/;
4315 my $cond = $ac_config_files_condition{$lfile};
4318 $condstr = $cond->subst_string;
4319 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4320 $ac_config_files_location{$file});
4322 $output_rules .= ($condstr . $local . ': '
4323 . '$(top_builddir)/config.status '
4324 . "@rewritten_inputs\n"
4326 . 'cd $(top_builddir) && '
4327 . '$(SHELL) ./config.status '
4328 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4331 push (@actual_other_files, $local);
4334 # For links we should clean destinations and distribute sources.
4335 foreach my $spec (@config_links)
4337 my ($link, $file) = split /:/, $spec;
4338 # Some people do AC_CONFIG_LINKS($computed). We only handle
4339 # the DEST:SRC form.
4341 my $where = $ac_config_files_location{$link};
4343 # Skip destinations that contain shell variables.
4344 if ((substitute_ac_subst_variables $link) !~ /\$/)
4346 # We skip links that aren't in this directory. However, if
4347 # the link's directory does not have a Makefile, and we are
4348 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4349 # in '.'s Makefile.in.
4350 my $local = basename ($link);
4351 my $fd = dirname ($link);
4352 if ($fd ne $relative_dir)
4354 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4365 push @actual_other_files, $local if $local;
4369 push @actual_other_vpath_files, $local if $local;
4373 # Do not process sources that contain shell variables.
4374 if ((substitute_ac_subst_variables $file) !~ /\$/)
4376 my $fd = dirname ($file);
4378 # We distribute files that are in this directory.
4379 # At the top-level ('.') we also distribute files whose
4380 # directory does not have a Makefile.
4381 if (($fd eq $relative_dir)
4382 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4384 # The following will distribute $file as a side-effect when
4385 # it is appropriate (i.e., when $file is not already an output).
4386 # We do not need the result, just the side-effect.
4387 rewrite_inputs_into_dependencies ($link, $file);
4392 # These files get removed by "make distclean".
4393 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4394 @actual_other_files);
4395 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4396 @actual_other_vpath_files);
4402 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4403 'oldinclude', 'pkginclude',
4407 next unless $_->[1] =~ /\..*$/;
4408 &saw_extension ($&);
4414 return if ! $seen_gettext || $relative_dir ne '.';
4416 my $subdirs = var 'SUBDIRS';
4420 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4424 # Perform some sanity checks to help users get the right setup.
4425 # We disable these tests when po/ doesn't exist in order not to disallow
4426 # unusual gettext setups.
4431 # | 1) If a package doesn't have a directory po/ at top level, it
4432 # | will likely have multiple po/ directories in subpackages.
4434 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4435 # | is used without 'external'. It is also useful to warn for the
4436 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4437 # | warnings apply only to the usual layout of packages, therefore
4438 # | they should both be disabled if no po/ directory is found at
4443 my @subdirs = $subdirs->value_as_list_recursive;
4445 msg_var ('syntax', $subdirs,
4446 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4447 if ! grep ($_ eq 'po', @subdirs);
4449 # intl/ is not required when AM_GNU_GETTEXT is called with the
4450 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4451 msg_var ('syntax', $subdirs,
4452 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4453 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4454 && ! grep ($_ eq 'intl', @subdirs));
4456 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4457 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4458 msg_var ('syntax', $subdirs,
4459 "'intl' should not be in SUBDIRS when "
4460 . "AM_GNU_GETTEXT([external]) is used")
4461 if ($seen_gettext_external && ! $seen_gettext_intl
4462 && grep ($_ eq 'intl', @subdirs));
4465 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4468 # Handle footer elements.
4471 reject_rule ('.SUFFIXES',
4472 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4474 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4475 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4476 # anything else, by sticking it right after the default: target.
4477 $output_header .= ".SUFFIXES:\n";
4478 my $suffixes = var 'SUFFIXES';
4479 my @suffixes = Automake::Rule::suffixes;
4480 if (@suffixes || $suffixes)
4482 # Make sure SUFFIXES has unique elements. Sort them to ensure
4483 # the output remains consistent. However, $(SUFFIXES) is
4484 # always at the start of the list, unsorted. This is done
4485 # because make will choose rules depending on the ordering of
4486 # suffixes, and this lets the user have some control. Push
4487 # actual suffixes, and not $(SUFFIXES). Some versions of make
4488 # do not like variable substitutions on the .SUFFIXES line.
4489 my @user_suffixes = ($suffixes
4490 ? $suffixes->value_as_list_recursive : ());
4492 my %suffixes = map { $_ => 1 } @suffixes;
4493 delete @suffixes{@user_suffixes};
4495 $output_header .= (".SUFFIXES: "
4496 . join (' ', @user_suffixes, sort keys %suffixes)
4500 $output_trailer .= file_contents ('footer', new Automake::Location);
4504 # Generate 'make install' rules.
4505 sub handle_install ()
4507 $output_rules .= &file_contents
4509 new Automake::Location,
4510 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4511 ? (" \$(BUILT_SOURCES)\n"
4512 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4514 'installdirs-local' => (user_phony_rule 'installdirs-local'
4515 ? ' installdirs-local' : ''),
4516 am__installdirs => variable_value ('am__installdirs') || '');
4520 # Deal with all and all-am.
4523 my ($makefile) = @_;
4527 # Put this at the beginning for the sake of non-GNU makes. This
4528 # is still wrong if these makes can run parallel jobs. But it is
4530 unshift (@all, basename ($makefile));
4532 foreach my $spec (@config_headers)
4534 my ($out, @ins) = split_config_file_spec ($spec);
4535 push (@all, basename ($out))
4536 if dirname ($out) eq $relative_dir;
4539 # Install 'all' hooks.
4540 push (@all, "all-local")
4541 if user_phony_rule "all-local";
4543 &pretty_print_rule ("all-am:", "\t\t", @all);
4544 &depend ('.PHONY', 'all-am', 'all');
4549 my @local_headers = ();
4550 push @local_headers, '$(BUILT_SOURCES)'
4551 if var ('BUILT_SOURCES');
4552 foreach my $spec (@config_headers)
4554 my ($out, @ins) = split_config_file_spec ($spec);
4555 push @local_headers, basename ($out)
4556 if dirname ($out) eq $relative_dir;
4561 # We need to make sure config.h is built before we recurse.
4562 # We also want to make sure that built sources are built
4563 # before any ordinary 'all' targets are run. We can't do this
4564 # by changing the order of dependencies to the "all" because
4565 # that breaks when using parallel makes. Instead we handle
4566 # things explicitly.
4567 $output_all .= ("all: @local_headers"
4569 . '$(MAKE) $(AM_MAKEFLAGS) '
4570 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4572 depend ('.MAKE', 'all');
4576 $output_all .= "all: " . (var ('SUBDIRS')
4577 ? 'all-recursive' : 'all-am') . "\n\n";
4582 # &do_check_merge_target ()
4583 # -------------------------
4584 # Handle check merge target specially.
4585 sub do_check_merge_target ()
4587 # Include user-defined local form of target.
4588 push @check_tests, 'check-local'
4589 if user_phony_rule 'check-local';
4591 # In --cygnus mode, check doesn't depend on all.
4592 if (option 'cygnus')
4594 # Just run the local check rules.
4595 pretty_print_rule ('check-am:', "\t\t", @check);
4599 # The check target must depend on the local equivalent of
4600 # 'all', to ensure all the primary targets are built. Then it
4601 # must build the local check rules.
4602 $output_rules .= "check-am: all-am\n";
4605 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4607 depend ('.MAKE', 'check-am');
4612 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4614 depend ('.MAKE', 'check-am');
4617 depend '.PHONY', 'check', 'check-am';
4618 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4619 $output_rules .= ("check: "
4620 . (var ('BUILT_SOURCES')
4621 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4623 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4625 depend ('.MAKE', 'check')
4626 if var ('BUILT_SOURCES');
4629 # handle_clean ($MAKEFILE)
4630 # ------------------------
4631 # Handle all 'clean' targets.
4632 sub handle_clean ($)
4634 my ($makefile) = @_;
4636 # Clean the files listed in user variables if they exist.
4637 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4638 if var ('MOSTLYCLEANFILES');
4639 $clean_files{'$(CLEANFILES)'} = CLEAN
4640 if var ('CLEANFILES');
4641 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4642 if var ('DISTCLEANFILES');
4643 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4644 if var ('MAINTAINERCLEANFILES');
4646 # Built sources are automatically removed by maintainer-clean.
4647 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4648 if var ('BUILT_SOURCES');
4650 # Compute a list of "rm"s to run for each target.
4651 my %rms = (MOSTLY_CLEAN, [],
4654 MAINTAINER_CLEAN, []);
4656 foreach my $file (keys %clean_files)
4658 my $when = $clean_files{$file};
4659 prog_error 'invalid entry in %clean_files'
4660 unless exists $rms{$when};
4662 my $rm = "rm -f $file";
4663 # If file is a variable, make sure when don't call 'rm -f' without args.
4664 $rm ="test -z \"$file\" || $rm"
4665 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4667 push @{$rms{$when}}, "\t-$rm\n";
4670 $output_rules .= &file_contents
4672 new Automake::Location,
4673 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4674 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4675 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4676 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4677 MAKEFILE => basename $makefile,
4682 # &target_cmp ($A, $B)
4683 # --------------------
4684 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4685 # other '.TARGETS' be last.
4688 return 0 if $a eq $b;
4690 my $a1 = substr ($a, 0, 1);
4691 my $b1 = substr ($b, 0, 1);
4694 return -1 if $b1 eq '.';
4695 return 1 if $a1 eq '.';
4701 # &handle_factored_dependencies ()
4702 # --------------------------------
4703 # Handle everything related to gathered targets.
4704 sub handle_factored_dependencies
4707 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4708 'uninstall-exec-local', 'uninstall-exec-hook',
4709 'uninstall-dvi-local',
4710 'uninstall-html-local',
4711 'uninstall-info-local',
4712 'uninstall-pdf-local',
4713 'uninstall-ps-local')
4717 reject_rule ($utarg, "use '$x', not '$utarg'");
4720 reject_rule ('install-local',
4721 "use 'install-data-local' or 'install-exec-local', "
4722 . "not 'install-local'");
4724 reject_rule ('install-hook',
4725 "use 'install-data-hook' or 'install-exec-hook', "
4726 . "not 'install-hook'");
4728 # Install the -local hooks.
4729 foreach (keys %dependencies)
4731 # Hooks are installed on the -am targets.
4733 depend ("$_-am", "$_-local")
4734 if user_phony_rule "$_-local";
4737 # Install the -hook hooks.
4738 # FIXME: Why not be as liberal as we are with -local hooks?
4739 foreach ('install-exec', 'install-data', 'uninstall')
4741 if (user_phony_rule "$_-hook")
4743 depend ('.MAKE', "$_-am");
4744 register_action("$_-am",
4745 ("\t\@\$(NORMAL_INSTALL)\n"
4746 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4750 # All the required targets are phony.
4751 depend ('.PHONY', keys %required_targets);
4753 # Actually output gathered targets.
4754 foreach (sort target_cmp keys %dependencies)
4756 # If there is nothing about this guy, skip it.
4758 unless (@{$dependencies{$_}}
4760 || $required_targets{$_});
4762 # Define gathered targets in undefined conditions.
4763 # FIXME: Right now we must handle .PHONY as an exception,
4764 # because people write things like
4765 # .PHONY: myphonytarget
4766 # to append dependencies. This would not work if Automake
4767 # refrained from defining its own .PHONY target as it does
4768 # with other overridden targets.
4769 # Likewise for '.MAKE'.
4770 my @undefined_conds = (TRUE,);
4771 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4774 Automake::Rule::define ($_, 'internal',
4775 RULE_AUTOMAKE, TRUE, INTERNAL);
4777 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4778 foreach my $cond (@undefined_conds)
4780 my $condstr = $cond->subst_string;
4781 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4782 $output_rules .= $actions{$_} if defined $actions{$_};
4783 $output_rules .= "\n";
4789 # &handle_tests_dejagnu ()
4790 # ------------------------
4791 sub handle_tests_dejagnu
4793 push (@check_tests, 'check-DEJAGNU');
4794 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4797 sub handle_per_suffix_test
4799 my ($test_suffix, %transform) = @_;
4800 my ($pfx, $generic, $parallel_tests_option, $am_exeext);
4801 prog_error ("called with 'parallel-tests' option not set")
4802 unless $parallel_tests_option = option 'parallel-tests';
4803 if ($test_suffix eq '')
4807 $am_exeext = 'FALSE';
4811 prog_error ("test suffix '$test_suffix' lacks leading dot")
4812 unless $test_suffix =~ m/^\.(.*)/;
4813 $pfx = uc ($1) . '_';
4815 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4818 # The "test driver" program, deputed to handle tests protocol used by
4819 # test scripts. By default, it's assumed that no protocol is used,
4820 # so we fall back to the old "parallel-tests" behaviour, implemented
4821 # by the 'test-driver' auxiliary script.
4822 if (! var "${pfx}LOG_DRIVER")
4824 require_conf_file ($parallel_tests_option->{position}, FOREIGN,
4826 define_variable ("${pfx}LOG_DRIVER",
4827 "\$(SHELL) $am_config_aux_dir/test-driver",
4830 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4831 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4832 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4833 my $compile = "${pfx}LOG_COMPILE";
4834 define_variable ($compile,
4835 '$(' . $pfx . 'LOG_COMPILER)'
4836 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4837 . ' $(' . $pfx . 'LOG_FLAGS)',
4839 $output_rules .= file_contents ('check2', new Automake::Location,
4840 GENERIC => $generic,
4842 DRIVER_FLAGS => $driver_flags,
4843 COMPILE => '$(' . $compile . ')',
4844 EXT => $test_suffix,
4845 am__EXEEXT => $am_exeext,
4849 # is_valid_test_extension ($EXT)
4850 # ------------------------------
4851 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4853 sub is_valid_test_extension ($)
4857 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4859 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4863 # Handle TESTS variable and other checks.
4866 if (option 'dejagnu')
4868 &handle_tests_dejagnu;
4872 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4874 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4875 . "'AUTOMAKE_OPTIONS'");
4881 push (@check_tests, 'check-TESTS');
4882 my $check_deps = "@check";
4883 $output_rules .= &file_contents ('check', new Automake::Location,
4884 COLOR => !! option 'color-tests',
4885 PARALLEL_TESTS => !! option 'parallel-tests',
4886 CHECK_DEPS => $check_deps);
4888 # Tests that are known programs should have $(EXEEXT) appended.
4889 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4890 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4891 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4892 if (var ('XFAIL_TESTS'));
4894 if (my $parallel_tests = option 'parallel-tests')
4896 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4899 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4902 $at_exeext = subst ('EXEEXT');
4903 $suff = $at_exeext . ' ' . $suff;
4905 if (! var 'TEST_EXTENSIONS')
4907 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4909 my $var = var 'TEST_EXTENSIONS';
4910 # Currently, we are not able to deal with conditional contents
4911 # in TEST_EXTENSIONS.
4912 if ($var->has_conditional_contents)
4914 msg_var 'unsupported', $var,
4915 "'TEST_EXTENSIONS' cannot have conditional contents";
4917 my @test_suffixes = $var->value_as_list_recursive;
4918 if ((my @invalid_test_suffixes =
4919 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4921 error $var->rdef (TRUE)->location,
4922 "invalid test extensions: @invalid_test_suffixes";
4924 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4927 unshift (@test_suffixes, $at_exeext)
4928 unless $test_suffixes[0] eq $at_exeext;
4930 unshift (@test_suffixes, '');
4932 transform_variable_recursively
4933 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4935 my ($subvar, $val, $cond, $full_cond) = @_;
4938 if $val =~ /^\@.*\@$/;
4939 $obj =~ s/\$\(EXEEXT\)$//o;
4941 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4943 msg ('error', $subvar->rdef ($cond)->location,
4944 "parallel-tests: using '$1' in TESTS is currently broken: '$val'");
4947 foreach my $test_suffix (@test_suffixes)
4950 if $test_suffix eq $at_exeext || $test_suffix eq '';
4951 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4952 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4956 handle_per_suffix_test ('',
4966 my $last_suffix = $test_suffixes[$#test_suffixes];
4968 foreach my $test_suffix (@test_suffixes)
4970 if ($test_suffix eq $last_suffix)
4976 $cur = 'am__test_logs' . $nhelper;
4978 define_variable ($cur,
4979 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4983 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4985 handle_per_suffix_test ($test_suffix,
4991 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4992 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4993 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4998 # Handle Emacs Lisp.
4999 sub handle_emacs_lisp
5001 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5004 return if ! @elfiles;
5006 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5007 map { $_->[1] } @elfiles);
5008 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5009 '$(am__ELFILES:.el=.elc)');
5010 # This one can be overridden by users.
5011 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5013 push @all, '$(ELCFILES)';
5015 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5016 'EMACS', 'lispdir');
5017 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5018 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5024 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5026 return if ! @pyfiles;
5028 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5029 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5030 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5036 my @sourcelist = &am_install_var ('-candist',
5039 return if ! @sourcelist;
5041 my @prefixes = am_primary_prefixes ('JAVA', 1,
5045 my @java_sources = ();
5046 foreach my $prefix (@prefixes)
5048 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5051 if $curs eq 'EXTRA';
5053 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5057 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5058 unless $curs eq $dir;
5064 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5067 if ($dir eq 'check')
5069 push (@check, "class$dir.stamp");
5073 push (@all, "class$dir.stamp");
5078 # Handle some of the minor options.
5079 sub handle_minor_options
5081 if (option 'readme-alpha')
5083 if ($relative_dir eq '.')
5085 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5087 msg ('error-gnits', $package_version_location,
5088 "version '$package_version' doesn't follow " .
5091 if (defined $1 && -f 'README-alpha')
5093 # This means we have an alpha release. See
5094 # GNITS_VERSION_PATTERN for details.
5095 push_dist_common ('README-alpha');
5101 ################################################################
5103 # ($OUTPUT, @INPUTS)
5104 # &split_config_file_spec ($SPEC)
5105 # -------------------------------
5106 # Decode the Autoconf syntax for config files (files, headers, links
5108 sub split_config_file_spec ($)
5111 my ($output, @inputs) = split (/:/, $spec);
5113 push @inputs, "$output.in"
5116 return ($output, @inputs);
5120 # locate_am (@POSSIBLE_SOURCES)
5121 # -----------------------------
5122 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5123 # This functions returns the first *.in file for which a *.am exists.
5124 # It returns undef otherwise.
5129 foreach my $file (@rest)
5131 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5142 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5143 # ---------------------------------------------------
5144 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5146 sub scan_autoconf_config_files ($$)
5148 my ($where, $config_files) = @_;
5150 # Look at potential Makefile.am's.
5151 foreach (split ' ', $config_files)
5153 # Must skip empty string for Perl 4.
5154 next if $_ eq "\\" || $_ eq '';
5156 # Handle $local:$input syntax.
5157 my ($local, @rest) = split (/:/);
5158 @rest = ("$local.in",) unless @rest;
5159 # Keep in sync with 'conffile-leading-dot.test'.
5160 msg ('unsupported', $where,
5161 "omit leading './' from config file names such as '$local';"
5162 . "\nremake rules might be subtly broken otherwise")
5163 if ($local =~ /^\.\//);
5164 my $input = locate_am @rest;
5167 # We have a file that automake should generate.
5168 $make_list{$input} = join (':', ($local, @rest));
5172 # We have a file that automake should cause to be
5173 # rebuilt, but shouldn't generate itself.
5174 push (@other_input_files, $_);
5176 $ac_config_files_location{$local} = $where;
5177 $ac_config_files_condition{$local} =
5178 new Automake::Condition (@cond_stack)
5184 # &scan_autoconf_traces ($FILENAME)
5185 # ---------------------------------
5186 sub scan_autoconf_traces ($)
5188 my ($filename) = @_;
5190 # Macros to trace, with their minimal number of arguments.
5192 # IMPORTANT: If you add a macro here, you should also add this macro
5193 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5195 AC_CANONICAL_BUILD => 0,
5196 AC_CANONICAL_HOST => 0,
5197 AC_CANONICAL_TARGET => 0,
5198 AC_CONFIG_AUX_DIR => 1,
5199 AC_CONFIG_FILES => 1,
5200 AC_CONFIG_HEADERS => 1,
5201 AC_CONFIG_LIBOBJ_DIR => 1,
5202 AC_CONFIG_LINKS => 1,
5206 AC_REQUIRE_AUX_FILE => 1,
5207 AC_SUBST_TRACE => 1,
5208 AM_AUTOMAKE_VERSION => 1,
5209 AM_CONDITIONAL => 2,
5210 AM_GNU_GETTEXT => 0,
5211 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5212 AM_INIT_AUTOMAKE => 0,
5213 AM_MAINTAINER_MODE => 0,
5215 AM_PROG_CC_C_O => 0,
5216 AM_SILENT_RULES => 0,
5217 _AM_SUBST_NOTMAKE => 1,
5220 _AM_COND_ENDIF => 1,
5221 LT_SUPPORTED_TAG => 1,
5222 _LT_AC_TAGCONFIG => 0,
5228 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5230 # Use a separator unlikely to be used, not ':', the default, which
5231 # has a precise meaning for AC_CONFIG_FILES and so on.
5232 $traces .= join (' ',
5233 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5236 my $tracefh = new Automake::XFile ("$traces $filename |");
5237 verb "reading $traces";
5242 while ($_ = $tracefh->getline)
5245 my ($here, $depth, @args) = split (/::/);
5246 $where = new Automake::Location $here;
5247 my $macro = $args[0];
5249 prog_error ("unrequested trace '$macro'")
5250 unless exists $traced{$macro};
5252 # Skip and diagnose malformed calls.
5253 if ($#args < $traced{$macro})
5255 msg ('syntax', $where, "not enough arguments for $macro");
5259 # Alphabetical ordering please.
5260 if ($macro eq 'AC_CANONICAL_BUILD')
5262 if ($seen_canonical <= AC_CANONICAL_BUILD)
5264 $seen_canonical = AC_CANONICAL_BUILD;
5265 $canonical_location = $where;
5268 elsif ($macro eq 'AC_CANONICAL_HOST')
5270 if ($seen_canonical <= AC_CANONICAL_HOST)
5272 $seen_canonical = AC_CANONICAL_HOST;
5273 $canonical_location = $where;
5276 elsif ($macro eq 'AC_CANONICAL_TARGET')
5278 $seen_canonical = AC_CANONICAL_TARGET;
5279 $canonical_location = $where;
5281 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5283 if ($seen_init_automake)
5285 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5286 . "AM_INIT_AUTOMAKE ...", partial => 1);
5287 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5289 $config_aux_dir = $args[1];
5290 $config_aux_dir_set_in_configure_ac = 1;
5291 check_directory ($config_aux_dir, $where);
5293 elsif ($macro eq 'AC_CONFIG_FILES')
5295 # Look at potential Makefile.am's.
5296 scan_autoconf_config_files ($where, $args[1]);
5298 elsif ($macro eq 'AC_CONFIG_HEADERS')
5300 foreach my $spec (split (' ', $args[1]))
5302 my ($dest, @src) = split (':', $spec);
5303 $ac_config_files_location{$dest} = $where;
5304 push @config_headers, $spec;
5307 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5309 $config_libobj_dir = $args[1];
5310 check_directory ($config_libobj_dir, $where);
5312 elsif ($macro eq 'AC_CONFIG_LINKS')
5314 foreach my $spec (split (' ', $args[1]))
5316 my ($dest, $src) = split (':', $spec);
5317 $ac_config_files_location{$dest} = $where;
5318 push @config_links, $spec;
5321 elsif ($macro eq 'AC_FC_SRCEXT')
5323 my $suffix = $args[1];
5324 # These flags are used as %SOURCEFLAG% in depend2.am,
5325 # where the trailing space is important.
5326 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5327 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5329 elsif ($macro eq 'AC_INIT')
5331 if (defined $args[2])
5333 $package_version = $args[2];
5334 $package_version_location = $where;
5337 elsif ($macro eq 'AC_LIBSOURCE')
5339 $libsources{$args[1]} = $here;
5341 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5343 # Only remember the first time a file is required.
5344 $required_aux_file{$args[1]} = $where
5345 unless exists $required_aux_file{$args[1]};
5347 elsif ($macro eq 'AC_SUBST_TRACE')
5349 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5350 # AC_SUBST(5), then too bad.
5351 $configure_vars{$args[1]} = $where
5352 if $args[1] =~ /^\w+$/;
5354 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5357 "version mismatch. This is Automake $VERSION,\n" .
5358 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5359 "comes from Automake $args[1]. You should recreate\n" .
5360 "aclocal.m4 with aclocal and run automake again.\n",
5361 # $? = 63 is used to indicate version mismatch to missing.
5363 if $VERSION ne $args[1];
5365 $seen_automake_version = 1;
5367 elsif ($macro eq 'AM_CONDITIONAL')
5369 $configure_cond{$args[1]} = $where;
5371 elsif ($macro eq 'AM_GNU_GETTEXT')
5373 $seen_gettext = $where;
5374 $ac_gettext_location = $where;
5375 $seen_gettext_external = grep ($_ eq 'external', @args);
5377 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5379 $seen_gettext_intl = $where;
5381 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5383 $seen_init_automake = $where;
5384 if (defined $args[2])
5386 $package_version = $args[2];
5387 $package_version_location = $where;
5389 elsif (defined $args[1])
5391 my @opts = split (' ', $args[1]);
5392 @opts = map { { option => $_, where => $where } } @opts;
5393 exit $exit_code if process_global_option_list (@opts);
5396 elsif ($macro eq 'AM_MAINTAINER_MODE')
5398 $seen_maint_mode = $where;
5400 elsif ($macro eq 'AM_PROG_AR')
5404 elsif ($macro eq 'AM_PROG_CC_C_O')
5406 $seen_cc_c_o = $where;
5408 elsif ($macro eq 'AM_SILENT_RULES')
5410 set_global_option ('silent-rules', $where);
5412 elsif ($macro eq '_AM_COND_IF')
5414 cond_stack_if ('', $args[1], $where);
5415 error ($where, "missing m4 quoting, macro depth $depth")
5418 elsif ($macro eq '_AM_COND_ELSE')
5420 cond_stack_else ('!', $args[1], $where);
5421 error ($where, "missing m4 quoting, macro depth $depth")
5424 elsif ($macro eq '_AM_COND_ENDIF')
5426 cond_stack_endif (undef, undef, $where);
5427 error ($where, "missing m4 quoting, macro depth $depth")
5430 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5432 $ignored_configure_vars{$args[1]} = $where;
5434 elsif ($macro eq 'm4_include'
5435 || $macro eq 'm4_sinclude'
5436 || $macro eq 'sinclude')
5438 # Skip missing 'sinclude'd files.
5439 next if $macro ne 'm4_include' && ! -f $args[1];
5441 # Some modified versions of Autoconf don't use
5442 # frozen files. Consequently it's possible that we see all
5443 # m4_include's performed during Autoconf's startup.
5444 # Obviously we don't want to distribute Autoconf's files
5445 # so we skip absolute filenames here.
5446 push @configure_deps, '$(top_srcdir)/' . $args[1]
5447 unless $here =~ m,^(?:\w:)?[\\/],;
5448 # Keep track of the greatest timestamp.
5451 my $mtime = mtime $args[1];
5452 $configure_deps_greatest_timestamp = $mtime
5453 if $mtime > $configure_deps_greatest_timestamp;
5456 elsif ($macro eq 'LT_SUPPORTED_TAG')
5458 $libtool_tags{$args[1]} = 1;
5459 $libtool_new_api = 1;
5461 elsif ($macro eq '_LT_AC_TAGCONFIG')
5463 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5464 # We use it to detect whether tags are supported. Our
5465 # preferred interface is LT_SUPPORTED_TAG, but it was
5466 # introduced in Libtool 1.6.
5467 if (0 == keys %libtool_tags)
5469 # Hardcode the tags supported by Libtool 1.5.
5470 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5475 error ($where, "condition stack not properly closed")
5482 # &scan_autoconf_files ()
5483 # -----------------------
5484 # Check whether we use 'configure.ac' or 'configure.in'.
5485 # Scan it (and possibly 'aclocal.m4') for interesting things.
5486 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5487 sub scan_autoconf_files ()
5489 # Reinitialize libsources here. This isn't really necessary,
5490 # since we currently assume there is only one configure.ac. But
5491 # that won't always be the case.
5494 # Keep track of the youngest configure dependency.
5495 $configure_deps_greatest_timestamp = mtime $configure_ac;
5496 if (-e 'aclocal.m4')
5498 my $mtime = mtime 'aclocal.m4';
5499 $configure_deps_greatest_timestamp = $mtime
5500 if $mtime > $configure_deps_greatest_timestamp;
5503 scan_autoconf_traces ($configure_ac);
5505 @configure_input_files = sort keys %make_list;
5506 # Set input and output files if not specified by user.
5509 @input_files = @configure_input_files;
5510 %output_files = %make_list;
5514 if (! $seen_init_automake)
5516 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5517 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5518 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5519 . "and that aclocal.m4 was recently regenerated "
5520 . "(using aclocal)");
5524 if (! $seen_automake_version)
5526 if (-f 'aclocal.m4')
5528 error ($seen_init_automake,
5529 "your implementation of AM_INIT_AUTOMAKE comes from " .
5530 "an\nold Automake version. You should recreate " .
5531 "aclocal.m4\nwith aclocal and run automake again",
5532 # $? = 63 is used to indicate version mismatch to missing.
5537 error ($seen_init_automake,
5538 "no proper implementation of AM_INIT_AUTOMAKE was " .
5539 "found,\nprobably because aclocal.m4 is missing.\n" .
5540 "You should run aclocal to create this file, then\n" .
5541 "run automake again");
5548 # Look for some files we need. Always check for these. This
5549 # check must be done for every run, even those where we are only
5550 # looking at a subdir Makefile. We must set relative_dir for
5551 # push_required_file to work.
5552 # Sort the files for stable verbose output.
5553 $relative_dir = '.';
5554 foreach my $file (sort keys %required_aux_file)
5556 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5558 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5559 if -f $config_aux_dir . '/install.sh';
5561 # Preserve dist_common for later.
5562 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5566 ################################################################
5568 # Set up for Cygnus mode.
5571 my $cygnus = option 'cygnus';
5572 return unless $cygnus;
5574 set_strictness ('foreign');
5575 set_option ('no-installinfo', $cygnus);
5576 set_option ('no-dependencies', $cygnus);
5577 set_option ('no-dist', $cygnus);
5579 err_ac "'AM_MAINTAINER_MODE' required when --cygnus specified"
5580 if !$seen_maint_mode;
5583 # Do any extra checking for GNU standards.
5584 sub check_gnu_standards
5586 if ($relative_dir eq '.')
5588 # In top level (or only) directory.
5589 require_file ("$am_file.am", GNU,
5590 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5592 # Accept one of these three licenses; default to COPYING.
5593 # Make sure we do not overwrite an existing license.
5595 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5603 require_file ("$am_file.am", GNU, 'COPYING')
5607 for my $opt ('no-installman', 'no-installinfo')
5609 msg ('error-gnu', option $opt,
5610 "option '$opt' disallowed by GNU standards")
5615 # Do any extra checking for GNITS standards.
5616 sub check_gnits_standards
5618 if ($relative_dir eq '.')
5620 # In top level (or only) directory.
5621 require_file ("$am_file.am", GNITS, 'THANKS');
5625 ################################################################
5627 # Functions to handle files of each language.
5629 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5630 # simple formula: Return value is LANG_SUBDIR if the resulting object
5631 # file should be in a subdir if the source file is, LANG_PROCESS if
5632 # file is to be dealt with, LANG_IGNORE otherwise.
5634 # Much of the actual processing is handled in
5635 # handle_single_transform. These functions exist so that
5636 # auxiliary information can be recorded for a later cleanup pass.
5637 # Note that the calls to these functions are computed, so don't bother
5638 # searching for their precise names in the source.
5640 # This is just a convenience function that can be used to determine
5641 # when a subdir object should be used.
5644 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5647 # Rewrite a single C source file.
5650 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5652 my $r = LANG_PROCESS;
5653 if (option 'subdir-objects')
5656 if ($directory && $directory ne '.')
5658 $base = $directory . '/' . $base;
5660 # libtool is always able to put the object at the proper place,
5661 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5662 msg_var ('portability', $var,
5663 "compiling '$base.c' in subdir requires "
5664 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5665 uniq_scope => US_GLOBAL,
5666 uniq_part => 'AM_PROG_CC_C_O subdir')
5667 unless $seen_cc_c_o || $obj eq '.lo';
5672 && $have_per_exec_flags
5673 && ! option 'subdir-objects'
5676 msg_var ('portability',
5677 $var, "compiling '$base.c' with per-target flags requires "
5678 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5679 uniq_scope => US_GLOBAL,
5680 uniq_part => 'AM_PROG_CC_C_O per-target')
5686 # Rewrite a single C++ source file.
5687 sub lang_cxx_rewrite
5689 return &lang_sub_obj;
5692 # Rewrite a single header file.
5693 sub lang_header_rewrite
5695 # Header files are simply ignored.
5699 # Rewrite a single Vala source file.
5700 sub lang_vala_rewrite
5702 my ($directory, $base, $ext) = @_;
5704 (my $newext = $ext) =~ s/vala$/c/;
5705 return (LANG_SUBDIR, $newext);
5708 # Rewrite a single yacc file.
5709 sub lang_yacc_rewrite
5711 my ($directory, $base, $ext) = @_;
5713 my $r = &lang_sub_obj;
5714 (my $newext = $ext) =~ tr/y/c/;
5715 return ($r, $newext);
5718 # Rewrite a single yacc++ file.
5719 sub lang_yaccxx_rewrite
5721 my ($directory, $base, $ext) = @_;
5723 my $r = &lang_sub_obj;
5724 (my $newext = $ext) =~ tr/y/c/;
5725 return ($r, $newext);
5728 # Rewrite a single lex file.
5729 sub lang_lex_rewrite
5731 my ($directory, $base, $ext) = @_;
5733 my $r = &lang_sub_obj;
5734 (my $newext = $ext) =~ tr/l/c/;
5735 return ($r, $newext);
5738 # Rewrite a single lex++ file.
5739 sub lang_lexxx_rewrite
5741 my ($directory, $base, $ext) = @_;
5743 my $r = &lang_sub_obj;
5744 (my $newext = $ext) =~ tr/l/c/;
5745 return ($r, $newext);
5748 # Rewrite a single assembly file.
5749 sub lang_asm_rewrite
5751 return &lang_sub_obj;
5754 # Rewrite a single preprocessed assembly file.
5755 sub lang_cppasm_rewrite
5757 return &lang_sub_obj;
5760 # Rewrite a single Fortran 77 file.
5761 sub lang_f77_rewrite
5763 return &lang_sub_obj;
5766 # Rewrite a single Fortran file.
5769 return &lang_sub_obj;
5772 # Rewrite a single preprocessed Fortran file.
5773 sub lang_ppfc_rewrite
5775 return &lang_sub_obj;
5778 # Rewrite a single preprocessed Fortran 77 file.
5779 sub lang_ppf77_rewrite
5781 return &lang_sub_obj;
5784 # Rewrite a single ratfor file.
5785 sub lang_ratfor_rewrite
5787 return &lang_sub_obj;
5790 # Rewrite a single Objective C file.
5791 sub lang_objc_rewrite
5793 return &lang_sub_obj;
5796 # Rewrite a single Unified Parallel C file.
5797 sub lang_upc_rewrite
5799 return &lang_sub_obj;
5802 # Rewrite a single Java file.
5803 sub lang_java_rewrite
5808 # The lang_X_finish functions are called after all source file
5809 # processing is done. Each should handle defining rules for the
5810 # language, etc. A finish function is only called if a source file of
5811 # the appropriate type has been seen.
5813 sub lang_vala_finish_target ($$)
5815 my ($self, $name) = @_;
5817 my $derived = canonicalize ($name);
5818 my $var = var "${derived}_SOURCES";
5821 my @vala_sources = grep { /\.vala$/ } ($var->value_as_list_recursive);
5823 foreach my $vala_file (@vala_sources)
5825 (my $c_file = $vala_file) =~ s/(.*)\.vala$/$1.c/;
5826 $output_rules .= "\$(srcdir)/$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5827 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5828 . "\t\@if test -f \$@; then :; else \\\n"
5829 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5833 # Add rebuild rules for generated header and vapi files
5834 my $flags = var ($derived . '_VALAFLAGS');
5838 foreach my $flag ($flags->value_as_list_recursive)
5840 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5841 '--vapi', '--internal-vapi', '--gir')))
5843 my $headerfile = $flag;
5844 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5845 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5846 . "\t\@if test -f \$@; then :; else \\\n"
5847 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5850 # valac is not used when building from dist tarballs
5851 # distribute the generated files
5852 push_dist_common ($headerfile);
5853 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5859 my $compile = $self->compile;
5861 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5862 # rule into '${derived}_VALAFLAGS' if it exists.
5863 my $val = "${derived}_VALAFLAGS";
5864 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5867 # VALAFLAGS is a user variable (per GNU Standards),
5868 # it should not be overridden in the Makefile...
5869 check_user_variables ['VALAFLAGS'];
5871 my $dirname = dirname ($name);
5873 # Only generate C code, do not run C compiler
5876 my $verbose = verbose_flag ('VALAC');
5877 my $silent = silent_flag ();
5880 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5881 # Since the C files generated from the vala sources depend on the
5882 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5883 # those of the C files generated by the valac invocation below (this is
5884 # especially important on systems with sub-second timestamp resolution).
5885 # Thus we need to create the stamp file *before* invoking valac, and to
5886 # move it to its final location only after valac has been invoked.
5887 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5888 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5889 "\t${silent}mv -f \$\@-t \$\@\n";
5891 push_dist_common ("${derived}_vala.stamp");
5893 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
5896 # Add output rules to invoke valac and create stamp file as a witness
5897 # to handle multiple outputs. This function is called after all source
5898 # file processing is done.
5899 sub lang_vala_finish
5903 foreach my $prog (keys %known_programs)
5905 lang_vala_finish_target ($self, $prog);
5908 while (my ($name) = each %known_libraries)
5910 lang_vala_finish_target ($self, $name);
5914 # The built .c files should be cleaned only on maintainer-clean
5915 # as the .c files are distributed. This function is called for each
5916 # .vala source file.
5917 sub lang_vala_target_hook
5919 my ($self, $aggregate, $output, $input, %transform) = @_;
5921 $clean_files{$output} = MAINTAINER_CLEAN;
5924 # This is a yacc helper which is called whenever we have decided to
5925 # compile a yacc file.
5926 sub lang_yacc_target_hook
5928 my ($self, $aggregate, $output, $input, %transform) = @_;
5930 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5931 # have to to generate special code.
5932 my $yflags_contains_minus_d = 0;
5934 foreach my $pfx ("", "${aggregate}_")
5936 my $yflagsvar = var ("${pfx}YFLAGS");
5937 next unless $yflagsvar;
5938 # We cannot work reliably with conditionally-defined YFLAGS.
5939 if ($yflagsvar->has_conditional_contents)
5941 msg_var ('unsupported', $yflagsvar,
5942 "'${pfx}YFLAGS' cannot have conditional contents");
5946 $yflags_contains_minus_d = 1
5947 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5951 if ($yflags_contains_minus_d)
5953 # Found a '-d' that applies to the compilation of this file.
5954 # Add a dependency for the generated header file, and arrange
5955 # for that file to be included in the distribution.
5957 # The extension of the output file (e.g., '.c' or '.cxx').
5958 # We'll need it to compute the name of the generated header file.
5959 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5961 # We know that a yacc input should be turned into either a C or
5962 # C++ output file. We depend on this fact (here and in yacc.am),
5963 # so check that it really holds.
5964 my $lang = $languages{$extension_map{$output_ext}};
5965 prog_error "invalid output name '$output' for yacc file '$input'"
5966 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5968 (my $header_ext = $output_ext) =~ s/c/h/g;
5969 # Quote $output_ext in the regexp, so that dots in it are taken
5970 # as literal dots, not as metacharacters.
5971 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5973 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5974 RULE_AUTOMAKE, TRUE,
5977 my $condstr = $cond->subst_string;
5979 "$condstr${header}: $output\n"
5980 # Recover from removal of $header
5981 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5982 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5984 # Distribute the generated file, unless its .y source was
5985 # listed in a nodist_ variable. (&handle_source_transform
5986 # will set DIST_SOURCE.)
5987 &push_dist_common ($header)
5988 if $transform{'DIST_SOURCE'};
5990 # The GNU rules say that yacc/lex output files should be removed
5991 # by maintainer-clean. However, if the files are not distributed,
5992 # then we want to remove them with "make clean"; otherwise,
5993 # "make distcheck" will fail.
5994 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5996 # See the comment above for $HEADER.
5997 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6000 # This is a lex helper which is called whenever we have decided to
6001 # compile a lex file.
6002 sub lang_lex_target_hook
6004 my ($self, $aggregate, $output, $input, %transform) = @_;
6005 # The GNU rules say that yacc/lex output files should be removed
6006 # by maintainer-clean. However, if the files are not distributed,
6007 # then we want to remove them with "make clean"; otherwise,
6008 # "make distcheck" will fail.
6009 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6012 # This is a helper for both lex and yacc.
6013 sub yacc_lex_finish_helper
6015 return if defined $language_scratch{'lex-yacc-done'};
6016 $language_scratch{'lex-yacc-done'} = 1;
6018 # FIXME: for now, no line number.
6019 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6020 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6023 sub lang_yacc_finish
6025 return if defined $language_scratch{'yacc-done'};
6026 $language_scratch{'yacc-done'} = 1;
6028 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
6030 yacc_lex_finish_helper;
6036 return if defined $language_scratch{'lex-done'};
6037 $language_scratch{'lex-done'} = 1;
6039 yacc_lex_finish_helper;
6043 # Given a hash table of linker names, pick the name that has the most
6044 # precedence. This is lame, but something has to have global
6045 # knowledge in order to eliminate the conflict. Add more linkers as
6051 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6053 return $l if defined $linkers{$l};
6058 # Called to indicate that an extension was used.
6062 if (! defined $extension_seen{$ext})
6064 $extension_seen{$ext} = 1;
6068 ++$extension_seen{$ext};
6072 # Return the number of files seen for a given language. Knows about
6073 # special cases we care about. FIXME: this is hideous. We need
6074 # something that involves real language objects. For instance yacc
6075 # and yaccxx could both derive from a common yacc class which would
6076 # know about the strange ylwrap requirement. (Or better yet we could
6077 # just not support legacy yacc!)
6078 sub count_files_for_language
6083 if ($name eq 'yacc' || $name eq 'yaccxx')
6085 @names = ('yacc', 'yaccxx');
6087 elsif ($name eq 'lex' || $name eq 'lexxx')
6089 @names = ('lex', 'lexxx');
6097 foreach $name (@names)
6099 my $lang = $languages{$name};
6100 foreach my $ext (@{$lang->extensions})
6102 $r += $extension_seen{$ext}
6103 if defined $extension_seen{$ext};
6110 # Called to ask whether source files have been seen . If HEADERS is 1,
6111 # headers can be included.
6116 # count all the sources
6118 foreach my $val (values %extension_seen)
6125 $count -= count_files_for_language ('header');
6132 # register_language (%ATTRIBUTE)
6133 # ------------------------------
6134 # Register a single language.
6135 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6136 sub register_language (%)
6141 $option{'autodep'} = 'no'
6142 unless defined $option{'autodep'};
6143 $option{'linker'} = ''
6144 unless defined $option{'linker'};
6145 $option{'flags'} = []
6146 unless defined $option{'flags'};
6147 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6148 unless defined $option{'output_extensions'};
6149 $option{'nodist_specific'} = 0
6150 unless defined $option{'nodist_specific'};
6152 my $lang = new Language (%option);
6155 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6156 $languages{$lang->name} = $lang;
6157 my $link = $lang->linker;
6160 if (exists $link_languages{$link})
6162 prog_error ("'$link' has different definitions in "
6163 . $lang->name . " and " . $link_languages{$link}->name)
6164 if $lang->link ne $link_languages{$link}->link;
6168 $link_languages{$link} = $lang;
6172 # Update the pattern of known extensions.
6173 accept_extensions (@{$lang->extensions});
6175 # Upate the $suffix_rule map.
6176 foreach my $suffix (@{$lang->extensions})
6178 foreach my $dest (&{$lang->output_extensions} ($suffix))
6180 register_suffix_rule (INTERNAL, $suffix, $dest);
6185 # derive_suffix ($EXT, $OBJ)
6186 # --------------------------
6187 # This function is used to find a path from a user-specified suffix $EXT
6188 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6189 sub derive_suffix ($$)
6191 my ($source_ext, $obj) = @_;
6193 while (! $extension_map{$source_ext}
6194 && $source_ext ne $obj
6195 && exists $suffix_rules->{$source_ext}
6196 && exists $suffix_rules->{$source_ext}{$obj})
6198 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6205 ################################################################
6207 # Pretty-print something and append to output_rules.
6208 sub pretty_print_rule
6210 $output_rules .= &makefile_wrap (@_);
6214 ################################################################
6217 ## -------------------------------- ##
6218 ## Handling the conditional stack. ##
6219 ## -------------------------------- ##
6223 # make_conditional_string ($NEGATE, $COND)
6224 # ----------------------------------------
6225 sub make_conditional_string ($$)
6227 my ($negate, $cond) = @_;
6228 $cond = "${cond}_TRUE"
6229 unless $cond =~ /^TRUE|FALSE$/;
6230 $cond = Automake::Condition::conditional_negate ($cond)
6236 my %_am_macro_for_cond =
6238 AMDEP => "one of the compiler tests\n"
6239 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6240 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6241 am__fastdepCC => 'AC_PROG_CC',
6242 am__fastdepCCAS => 'AM_PROG_AS',
6243 am__fastdepCXX => 'AC_PROG_CXX',
6244 am__fastdepGCJ => 'AM_PROG_GCJ',
6245 am__fastdepOBJC => 'AC_PROG_OBJC',
6246 am__fastdepUPC => 'AM_PROG_UPC'
6250 # cond_stack_if ($NEGATE, $COND, $WHERE)
6251 # --------------------------------------
6252 sub cond_stack_if ($$$)
6254 my ($negate, $cond, $where) = @_;
6256 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6258 my $text = "$cond does not appear in AM_CONDITIONAL";
6259 my $scope = US_LOCAL;
6260 if (exists $_am_macro_for_cond{$cond})
6262 my $mac = $_am_macro_for_cond{$cond};
6263 $text .= "\n The usual way to define '$cond' is to add ";
6264 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6265 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6266 # These warnings appear in Automake files (depend2.am),
6267 # so there is no need to display them more than once:
6270 error $where, $text, uniq_scope => $scope;
6273 push (@cond_stack, make_conditional_string ($negate, $cond));
6275 return new Automake::Condition (@cond_stack);
6280 # cond_stack_else ($NEGATE, $COND, $WHERE)
6281 # ----------------------------------------
6282 sub cond_stack_else ($$$)
6284 my ($negate, $cond, $where) = @_;
6288 error $where, "else without if";
6292 $cond_stack[$#cond_stack] =
6293 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6295 # If $COND is given, check against it.
6298 $cond = make_conditional_string ($negate, $cond);
6300 error ($where, "else reminder ($negate$cond) incompatible with "
6301 . "current conditional: $cond_stack[$#cond_stack]")
6302 if $cond_stack[$#cond_stack] ne $cond;
6305 return new Automake::Condition (@cond_stack);
6310 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6311 # -----------------------------------------
6312 sub cond_stack_endif ($$$)
6314 my ($negate, $cond, $where) = @_;
6319 error $where, "endif without if";
6323 # If $COND is given, check against it.
6326 $cond = make_conditional_string ($negate, $cond);
6328 error ($where, "endif reminder ($negate$cond) incompatible with "
6329 . "current conditional: $cond_stack[$#cond_stack]")
6330 if $cond_stack[$#cond_stack] ne $cond;
6335 return new Automake::Condition (@cond_stack);
6342 ## ------------------------ ##
6343 ## Handling the variables. ##
6344 ## ------------------------ ##
6347 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6348 # -----------------------------------------------------
6349 # Like define_variable, but the value is a list, and the variable may
6350 # be defined conditionally. The second argument is the condition
6351 # under which the value should be defined; this should be the empty
6352 # string to define the variable unconditionally. The third argument
6353 # is a list holding the values to use for the variable. The value is
6354 # pretty printed in the output file.
6355 sub define_pretty_variable ($$$@)
6357 my ($var, $cond, $where, @value) = @_;
6359 if (! vardef ($var, $cond))
6361 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6362 '', $where, VAR_PRETTY);
6363 rvar ($var)->rdef ($cond)->set_seen;
6368 # define_variable ($VAR, $VALUE, $WHERE)
6369 # --------------------------------------
6370 # Define a new Automake Makefile variable VAR to VALUE, but only if
6371 # not already defined.
6372 sub define_variable ($$$)
6374 my ($var, $value, $where) = @_;
6375 define_pretty_variable ($var, TRUE, $where, $value);
6379 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6380 # ------------------------------------------------------------
6381 # Define the $VAR which content is the list of file names composed of
6382 # a @BASENAME and the $EXTENSION.
6383 sub define_files_variable ($\@$$)
6385 my ($var, $basename, $extension, $where) = @_;
6386 define_variable ($var,
6387 join (' ', map { "$_.$extension" } @$basename),
6392 # Like define_variable, but define a variable to be the configure
6393 # substitution by the same name.
6394 sub define_configure_variable ($)
6397 # Some variables we do not want to output. For instance it
6398 # would be a bad idea to output `U = @U@` when `@U@` can be
6399 # substituted as `\`.
6400 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6401 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6402 '', $configure_vars{$var}, $pretty);
6406 # define_compiler_variable ($LANG)
6407 # --------------------------------
6408 # Define a compiler variable. We also handle defining the 'LT'
6409 # version of the command when using libtool.
6410 sub define_compiler_variable ($)
6414 my ($var, $value) = ($lang->compiler, $lang->compile);
6415 my $libtool_tag = '';
6416 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6417 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6418 &define_variable ($var, $value, INTERNAL);
6419 if (var ('LIBTOOL'))
6421 my $verbose = define_verbose_libtool ();
6422 &define_variable ("LT$var",
6423 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6424 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6427 define_verbose_tagvar ($lang->ccer || 'GEN');
6431 # define_linker_variable ($LANG)
6432 # ------------------------------
6433 # Define linker variables.
6434 sub define_linker_variable ($)
6438 my $libtool_tag = '';
6439 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6440 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6442 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6443 # CCLINK = $(CCLD) blah blah...
6445 if (var ('LIBTOOL'))
6447 my $verbose = define_verbose_libtool ();
6448 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6449 . "\$(LIBTOOLFLAGS) --mode=link ";
6451 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6452 &define_variable ($lang->compiler, $lang);
6453 &define_verbose_tagvar ($lang->lder || 'GEN');
6456 sub define_per_target_linker_variable ($$)
6458 my ($linker, $target) = @_;
6460 # If the user wrote a custom link command, we don't define ours.
6461 return "${target}_LINK"
6462 if set_seen "${target}_LINK";
6464 my $xlink = $linker ? $linker : 'LINK';
6466 my $lang = $link_languages{$xlink};
6467 prog_error "Unknown language for linker variable '$xlink'"
6470 my $link_command = $lang->link;
6473 my $libtool_tag = '';
6474 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6475 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6477 my $verbose = define_verbose_libtool ();
6479 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6480 . "--mode=link " . $link_command;
6483 # Rewrite each occurrence of 'AM_$flag' in the link
6484 # command into '${derived}_$flag' if it exists.
6485 my $orig_command = $link_command;
6486 my @flags = (@{$lang->flags}, 'LDFLAGS');
6487 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6488 for my $flag (@flags)
6490 my $val = "${target}_$flag";
6491 $link_command =~ s/\(AM_$flag\)/\($val\)/
6495 # If the computed command is the same as the generic command, use
6496 # the command linker variable.
6497 return ($lang->linker, $lang->lder)
6498 if $link_command eq $orig_command;
6500 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6501 return ("${target}_LINK", $lang->lder);
6504 ################################################################
6506 # &check_trailing_slash ($WHERE, $LINE)
6507 # -------------------------------------
6508 # Return 1 iff $LINE ends with a slash.
6509 # Might modify $LINE.
6510 sub check_trailing_slash ($\$)
6512 my ($where, $line) = @_;
6514 # Ignore '##' lines.
6515 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6517 # Catch and fix a common error.
6518 msg "syntax", $where, "whitespace following trailing backslash"
6519 if $$line =~ s/\\\s+\n$/\\\n/;
6521 return $$line =~ /\\$/;
6525 # &read_am_file ($AMFILE, $WHERE)
6526 # -------------------------------
6527 # Read Makefile.am and set up %contents. Simultaneously copy lines
6528 # from Makefile.am into $output_trailer, or define variables as
6529 # appropriate. NOTE we put rules in the trailer section. We want
6530 # user rules to come after our generated stuff.
6531 sub read_am_file ($$)
6533 my ($amfile, $where) = @_;
6535 my $am_file = new Automake::XFile ("< $amfile");
6536 verb "reading $amfile";
6538 # Keep track of the youngest output dependency.
6539 my $mtime = mtime $amfile;
6540 $output_deps_greatest_timestamp = $mtime
6541 if $mtime > $output_deps_greatest_timestamp;
6547 my $var_look = VAR_ASIS;
6549 use constant IN_VAR_DEF => 0;
6550 use constant IN_RULE_DEF => 1;
6551 use constant IN_COMMENT => 2;
6552 my $prev_state = IN_RULE_DEF;
6554 while ($_ = $am_file->getline)
6556 $where->set ("$amfile:$.");
6557 if (/$IGNORE_PATTERN/o)
6559 # Merely delete comments beginning with two hashes.
6561 elsif (/$WHITE_PATTERN/o)
6563 error $where, "blank line following trailing backslash"
6565 # Stick a single white line before the incoming macro or rule.
6568 # Flush all comments seen so far.
6571 $output_vars .= $comment;
6575 elsif (/$COMMENT_PATTERN/o)
6577 # Stick comments before the incoming macro or rule. Make
6578 # sure a blank line precedes the first block of comments.
6579 $spacing = "\n" unless $blank;
6581 $comment .= $spacing . $_;
6583 $prev_state = IN_COMMENT;
6589 $saw_bk = check_trailing_slash ($where, $_);
6592 # We save the conditional stack on entry, and then check to make
6593 # sure it is the same on exit. This lets us conditionally include
6595 my @saved_cond_stack = @cond_stack;
6596 my $cond = new Automake::Condition (@cond_stack);
6598 my $last_var_name = '';
6599 my $last_var_type = '';
6600 my $last_var_value = '';
6602 # FIXME: shouldn't use $_ in this loop; it is too big.
6605 $where->set ("$amfile:$.");
6607 # Make sure the line is \n-terminated.
6611 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6612 # used by users. @MAINT@ is an anachronism now.
6613 $_ =~ s/\@MAINT\@//g
6614 unless $seen_maint_mode;
6616 my $new_saw_bk = check_trailing_slash ($where, $_);
6618 if (/$IGNORE_PATTERN/o)
6620 # Merely delete comments beginning with two hashes.
6622 # Keep any backslash from the previous line.
6623 $new_saw_bk = $saw_bk;
6625 elsif (/$WHITE_PATTERN/o)
6627 # Stick a single white line before the incoming macro or rule.
6629 error $where, "blank line following trailing backslash"
6632 elsif (/$COMMENT_PATTERN/o)
6634 error $where, "comment following trailing backslash"
6635 if $saw_bk && $prev_state != IN_COMMENT;
6637 # Stick comments before the incoming macro or rule.
6638 $comment .= $spacing . $_;
6640 $prev_state = IN_COMMENT;
6644 if ($prev_state == IN_RULE_DEF)
6646 my $cond = new Automake::Condition @cond_stack;
6647 $output_trailer .= $cond->subst_string;
6648 $output_trailer .= $_;
6650 elsif ($prev_state == IN_COMMENT)
6652 # If the line doesn't start with a '#', add it.
6653 # We do this because a continued comment like
6657 # is not portable. BSD make doesn't honor
6658 # escaped newlines in comments.
6660 $comment .= $spacing . $_;
6662 else # $prev_state == IN_VAR_DEF
6664 $last_var_value .= ' '
6665 unless $last_var_value =~ /\s$/;
6666 $last_var_value .= $_;
6670 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6671 $last_var_type, $cond,
6672 $last_var_value, $comment,
6673 $last_where, VAR_ASIS)
6675 $comment = $spacing = '';
6680 elsif (/$IF_PATTERN/o)
6682 $cond = cond_stack_if ($1, $2, $where);
6684 elsif (/$ELSE_PATTERN/o)
6686 $cond = cond_stack_else ($1, $2, $where);
6688 elsif (/$ENDIF_PATTERN/o)
6690 $cond = cond_stack_endif ($1, $2, $where);
6693 elsif (/$RULE_PATTERN/o)
6696 $prev_state = IN_RULE_DEF;
6698 # For now we have to output all definitions of user rules
6699 # and can't diagnose duplicates (see the comment in
6700 # Automake::Rule::define). So we go on and ignore the return value.
6701 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6703 check_variable_expansions ($_, $where);
6705 $output_trailer .= $comment . $spacing;
6706 my $cond = new Automake::Condition @cond_stack;
6707 $output_trailer .= $cond->subst_string;
6708 $output_trailer .= $_;
6709 $comment = $spacing = '';
6711 elsif (/$ASSIGNMENT_PATTERN/o)
6713 # Found a macro definition.
6714 $prev_state = IN_VAR_DEF;
6715 $last_var_name = $1;
6716 $last_var_type = $2;
6717 $last_var_value = $3;
6718 $last_where = $where->clone;
6719 if ($3 ne '' && substr ($3, -1) eq "\\")
6721 # We preserve the '\' because otherwise the long lines
6722 # that are generated will be truncated by broken
6724 $last_var_value = $3 . "\n";
6726 # Normally we try to output variable definitions in the
6727 # same format they were input. However, POSIX compliant
6728 # systems are not required to support lines longer than
6729 # 2048 bytes (most notably, some sed implementation are
6730 # limited to 4000 bytes, and sed is used by config.status
6731 # to rewrite Makefile.in into Makefile). Moreover nobody
6732 # would really write such long lines by hand since it is
6733 # hardly maintainable. So if a line is longer that 1000
6734 # bytes (an arbitrary limit), assume it has been
6735 # automatically generated by some tools, and flatten the
6736 # variable definition. Otherwise, keep the variable as it
6738 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6742 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6743 $last_var_type, $cond,
6744 $last_var_value, $comment,
6745 $last_where, $var_look)
6747 $comment = $spacing = '';
6748 $var_look = VAR_ASIS;
6751 elsif (/$INCLUDE_PATTERN/o)
6755 if ($path =~ s/^\$\(top_srcdir\)\///)
6757 push (@include_stack, "\$\(top_srcdir\)/$path");
6758 # Distribute any included file.
6760 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6761 # otherwise OSF make will implicitly copy the included
6762 # file in the build tree during "make distdir" to satisfy
6764 # (subdircond2.test and subdircond3.test will fail.)
6765 push_dist_common ("\$\(top_srcdir\)/$path");
6769 $path =~ s/\$\(srcdir\)\///;
6770 push (@include_stack, "\$\(srcdir\)/$path");
6771 # Always use the $(srcdir) prefix in DIST_COMMON,
6772 # otherwise OSF make will implicitly copy the included
6773 # file in the build tree during "make distdir" to satisfy
6775 # (subdircond2.test and subdircond3.test will fail.)
6776 push_dist_common ("\$\(srcdir\)/$path");
6777 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6779 $where->push_context ("'$path' included from here");
6780 &read_am_file ($path, $where);
6781 $where->pop_context;
6785 # This isn't an error; it is probably a continued rule.
6786 # In fact, this is what we assume.
6787 $prev_state = IN_RULE_DEF;
6788 check_variable_expansions ($_, $where);
6789 $output_trailer .= $comment . $spacing;
6790 my $cond = new Automake::Condition @cond_stack;
6791 $output_trailer .= $cond->subst_string;
6792 $output_trailer .= $_;
6793 $comment = $spacing = '';
6794 error $where, "'#' comment at start of rule is unportable"
6795 if $_ =~ /^\t\s*\#/;
6798 $saw_bk = $new_saw_bk;
6799 $_ = $am_file->getline;
6802 $output_trailer .= $comment;
6804 error ($where, "trailing backslash on last line")
6807 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6808 : "too many conditionals closed in include file"))
6809 if "@saved_cond_stack" ne "@cond_stack";
6813 # define_standard_variables ()
6814 # ----------------------------
6815 # A helper for read_main_am_file which initializes configure variables
6816 # and variables from header-vars.am.
6817 sub define_standard_variables
6819 my $saved_output_vars = $output_vars;
6820 my ($comments, undef, $rules) =
6821 file_contents_internal (1, "$libdir/am/header-vars.am",
6822 new Automake::Location);
6824 foreach my $var (sort keys %configure_vars)
6826 &define_configure_variable ($var);
6829 $output_vars .= $comments . $rules;
6832 # Read main am file.
6833 sub read_main_am_file
6837 # This supports the strange variable tricks we are about to play.
6838 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6839 if (scalar (variables) > 0);
6841 # Generate copyright header for generated Makefile.in.
6842 # We do discard the output of predefined variables, handled below.
6843 $output_vars = ("# $in_file_name generated by automake "
6844 . $VERSION . " from $am_file_name.\n");
6845 $output_vars .= '# ' . subst ('configure_input') . "\n";
6846 $output_vars .= $gen_copyright;
6848 # We want to predefine as many variables as possible. This lets
6849 # the user set them with '+=' in Makefile.am.
6850 &define_standard_variables;
6852 # Read user file, which might override some of our values.
6853 &read_am_file ($amfile, new Automake::Location);
6858 ################################################################
6861 # &flatten ($STRING)
6862 # ------------------
6863 # Flatten the $STRING and return the result.
6877 # transform_token ($TOKEN, \%PAIRS, $KEY)
6878 # =======================================
6879 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6880 # (which should be ?KEY? or any of the special %% requests)..
6881 sub transform_token ($$$)
6883 my ($token, $transform, $key) = @_;
6884 my $res = $transform->{$key};
6885 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6890 # transform ($TOKEN, \%PAIRS)
6891 # ===========================
6892 # If ($TOKEN, $VAL) is in %PAIRS:
6893 # - replaces %KEY% with $VAL,
6894 # - enables/disables ?KEY? and ?!KEY?,
6895 # - replaces %?KEY% with TRUE or FALSE.
6896 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6897 # IFTRUE / IFFALSE, as appropriate.
6900 my ($token, $transform) = @_;
6903 # Must be before the following pattern to exclude the case
6904 # when there is neither IFTRUE nor IFFALSE.
6905 if ($token =~ /^%([\w\-]+)%$/)
6907 return transform_token ($token, $transform, $1);
6909 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6910 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6912 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6915 elsif ($token =~ /^%\?([\w\-]+)%$/)
6917 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6920 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6922 my $neg = ($1 eq '!') ? 1 : 0;
6923 my $val = transform_token ($token, $transform, $2);
6924 return (!!$val == $neg) ? '##%' : '';
6928 prog_error "Unknown request format: $token";
6934 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6935 # ------------------------------------------
6936 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6938 sub make_paragraphs ($%)
6940 my ($file, %transform) = @_;
6942 # Complete %transform with global options.
6943 # Note that %transform goes last, so it overrides global options.
6944 %transform = ('CYGNUS' => !! option 'cygnus',
6946 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6948 'XZ' => !! option 'dist-xz',
6949 'LZMA' => !! option 'dist-lzma',
6950 'LZIP' => !! option 'dist-lzip',
6951 'BZIP2' => !! option 'dist-bzip2',
6952 'COMPRESS' => !! option 'dist-tarZ',
6953 'GZIP' => ! option 'no-dist-gzip',
6954 'SHAR' => !! option 'dist-shar',
6955 'ZIP' => !! option 'dist-zip',
6957 'INSTALL-INFO' => ! option 'no-installinfo',
6958 'INSTALL-MAN' => ! option 'no-installman',
6959 'HAVE-MANS' => !! var ('MANS'),
6960 'CK-NEWS' => !! option 'check-news',
6962 'SUBDIRS' => !! var ('SUBDIRS'),
6963 'TOPDIR_P' => $relative_dir eq '.',
6965 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6966 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6967 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6969 'LIBTOOL' => !! var ('LIBTOOL'),
6971 'FIRST' => ! $transformed_files{$file},
6974 $transformed_files{$file} = 1;
6975 $_ = $am_file_cache{$file};
6979 verb "reading $file";
6980 # Swallow the whole file.
6981 my $fc_file = new Automake::XFile "< $file";
6982 my $saved_dollar_slash = $/;
6984 $_ = $fc_file->getline;
6985 $/ = $saved_dollar_slash;
6988 # Remove ##-comments.
6989 # Besides we don't need more than two consecutive new-lines.
6990 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6992 $am_file_cache{$file} = $_;
6995 # Substitute Automake template tokens.
6996 s/(?: % \?? [\w\-]+ %
6997 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
6999 )/transform($&, \%transform)/gex;
7000 # transform() may have added some ##%-comments to strip.
7001 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
7002 # ####### and do not remove the latter.)
7003 s/^[ \t]*(?:##%)+.*\n//gm;
7005 # Split at unescaped new lines.
7006 my @lines = split (/(?<!\\)\n/, $_);
7009 while (defined ($_ = shift @lines))
7012 # If we are a rule, eat as long as we start with a tab.
7013 if (/$RULE_PATTERN/smo)
7015 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7017 $paragraph .= "\n$_";
7019 unshift (@lines, $_);
7022 # If we are a comments, eat as much comments as you can.
7023 elsif (/$COMMENT_PATTERN/smo)
7025 while (defined ($_ = shift @lines)
7026 && $_ =~ /$COMMENT_PATTERN/smo)
7028 $paragraph .= "\n$_";
7030 unshift (@lines, $_);
7033 push @res, $paragraph;
7041 # ($COMMENT, $VARIABLES, $RULES)
7042 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7043 # -------------------------------------------------------------
7044 # Return contents of a file from $libdir/am, automatically skipping
7045 # macros or rules which are already known. $IS_AM iff the caller is
7046 # reading an Automake file (as opposed to the user's Makefile.am).
7047 sub file_contents_internal ($$$%)
7049 my ($is_am, $file, $where, %transform) = @_;
7051 $where->set ($file);
7053 my $result_vars = '';
7054 my $result_rules = '';
7058 # The following flags are used to track rules spanning across
7059 # multiple paragraphs.
7060 my $is_rule = 0; # 1 if we are processing a rule.
7061 my $discard_rule = 0; # 1 if the current rule should not be output.
7063 # We save the conditional stack on entry, and then check to make
7064 # sure it is the same on exit. This lets us conditionally include
7066 my @saved_cond_stack = @cond_stack;
7067 my $cond = new Automake::Condition (@cond_stack);
7069 foreach (make_paragraphs ($file, %transform))
7071 # FIXME: no line number available.
7072 $where->set ($file);
7075 error $where, "blank line following trailing backslash:\n$_"
7077 error $where, "comment following trailing backslash:\n$_"
7083 # Stick empty line before the incoming macro or rule.
7086 elsif (/$COMMENT_PATTERN/mso)
7089 # Stick comments before the incoming macro or rule.
7093 # Handle inclusion of other files.
7094 elsif (/$INCLUDE_PATTERN/o)
7098 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7099 $where->push_context ("'$file' included from here");
7101 my ($com, $vars, $rules)
7102 = file_contents_internal ($is_am, $file, $where, %transform);
7103 $where->pop_context;
7105 $result_vars .= $vars;
7106 $result_rules .= $rules;
7110 # Handling the conditionals.
7111 elsif (/$IF_PATTERN/o)
7113 $cond = cond_stack_if ($1, $2, $file);
7115 elsif (/$ELSE_PATTERN/o)
7117 $cond = cond_stack_else ($1, $2, $file);
7119 elsif (/$ENDIF_PATTERN/o)
7121 $cond = cond_stack_endif ($1, $2, $file);
7125 elsif (/$RULE_PATTERN/mso)
7129 # Separate relationship from optional actions: the first
7130 # `new-line tab" not preceded by backslash (continuation
7133 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7134 my ($relationship, $actions) = ($1, $2 || '');
7136 # Separate targets from dependencies: the first colon.
7137 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7138 my ($targets, $dependencies) = ($1, $2);
7139 # Remove the escaped new lines.
7140 # I don't know why, but I have to use a tmp $flat_deps.
7141 my $flat_deps = &flatten ($dependencies);
7142 my @deps = split (' ', $flat_deps);
7144 foreach (split (' ', $targets))
7146 # FIXME: 1. We are not robust to people defining several targets
7147 # at once, only some of them being in %dependencies. The
7148 # actions from the targets in %dependencies are usually generated
7149 # from the content of %actions, but if some targets in $targets
7150 # are not in %dependencies the ELSE branch will output
7151 # a rule for all $targets (i.e. the targets which are both
7152 # in %dependencies and $targets will have two rules).
7154 # FIXME: 2. The logic here is not able to output a
7155 # multi-paragraph rule several time (e.g. for each condition
7156 # it is defined for) because it only knows the first paragraph.
7158 # FIXME: 3. We are not robust to people defining a subset
7159 # of a previously defined "multiple-target" rule. E.g.
7160 # 'foo:' after 'foo bar:'.
7162 # Output only if not in FALSE.
7163 if (defined $dependencies{$_} && $cond != FALSE)
7165 &depend ($_, @deps);
7166 register_action ($_, $actions);
7170 # Free-lance dependency. Output the rule for all the
7171 # targets instead of one by one.
7172 my @undefined_conds =
7173 Automake::Rule::define ($targets, $file,
7174 $is_am ? RULE_AUTOMAKE : RULE_USER,
7176 for my $undefined_cond (@undefined_conds)
7178 my $condparagraph = $paragraph;
7179 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7180 $result_rules .= "$spacing$comment$condparagraph\n";
7182 if (scalar @undefined_conds == 0)
7184 # Remember to discard next paragraphs
7185 # if they belong to this rule.
7186 # (but see also FIXME: #2 above.)
7189 $comment = $spacing = '';
7195 elsif (/$ASSIGNMENT_PATTERN/mso)
7197 my ($var, $type, $val) = ($1, $2, $3);
7198 error $where, "variable '$var' with trailing backslash"
7203 Automake::Variable::define ($var,
7204 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7205 $type, $cond, $val, $comment, $where,
7209 $comment = $spacing = '';
7213 # This isn't an error; it is probably some tokens which
7214 # configure is supposed to replace, such as '@SET-MAKE@',
7215 # or some part of a rule cut by an if/endif.
7216 if (! $cond->false && ! ($is_rule && $discard_rule))
7218 s/^/$cond->subst_string/gme;
7219 $result_rules .= "$spacing$comment$_\n";
7221 $comment = $spacing = '';
7225 error ($where, @cond_stack ?
7226 "unterminated conditionals: @cond_stack" :
7227 "too many conditionals closed in include file")
7228 if "@saved_cond_stack" ne "@cond_stack";
7230 return ($comment, $result_vars, $result_rules);
7235 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7236 # ------------------------------------------------
7237 # Return contents of a file from $libdir/am, automatically skipping
7238 # macros or rules which are already known.
7239 sub file_contents ($$%)
7241 my ($basename, $where, %transform) = @_;
7242 my ($comments, $variables, $rules) =
7243 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7245 return "$comments$variables$rules";
7250 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7251 # -----------------------------------------------------
7252 # Find all variable prefixes that are used for install directories. A
7253 # prefix 'zar' qualifies iff:
7255 # * 'zardir' is a variable.
7256 # * 'zar_PRIMARY' is a variable.
7258 # As a side effect, it looks for misspellings. It is an error to have
7259 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7260 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7261 # of the same name (with "dir" appended) exists. For instance, if the
7262 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7263 # This is to provide a little extra flexibility in those cases which
7265 sub am_primary_prefixes ($$@)
7267 my ($primary, $can_dist, @prefixes) = @_;
7270 my %valid = map { $_ => 0 } @prefixes;
7271 $valid{'EXTRA'} = 0;
7272 foreach my $var (variables $primary)
7274 # Automake is allowed to define variables that look like primaries
7275 # but which aren't. E.g. INSTALL_sh_DATA.
7276 # Autoconf can also define variables like INSTALL_DATA, so
7277 # ignore all configure variables (at least those which are not
7278 # redefined in Makefile.am).
7279 # FIXME: We should make sure that these variables are not
7280 # conditionally defined (or else adjust the condition below).
7281 my $def = $var->def (TRUE);
7282 next if $def && $def->owner != VAR_MAKEFILE;
7284 my $varname = $var->name;
7286 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7288 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7289 if ($dist ne '' && ! $can_dist)
7292 "invalid variable '$varname': 'dist' is forbidden");
7294 # Standard directories must be explicitly allowed.
7295 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7298 "'${X}dir' is not a legitimate directory " .
7301 # A not explicitly valid directory is allowed if Xdir is defined.
7302 elsif (! defined $valid{$X} &&
7303 $var->requires_variables ("'$varname' is used", "${X}dir"))
7305 # Nothing to do. Any error message has been output
7306 # by $var->requires_variables.
7310 # Ensure all extended prefixes are actually used.
7311 $valid{"$base$dist$X"} = 1;
7316 prog_error "unexpected variable name: $varname";
7320 # Return only those which are actually defined.
7321 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7325 # Handle 'where_HOW' variable magic. Does all lookups, generates
7326 # install code, and possibly generates code to define the primary
7327 # variable. The first argument is the name of the .am file to munge,
7328 # the second argument is the primary variable (e.g. HEADERS), and all
7329 # subsequent arguments are possible installation locations.
7331 # Returns list of [$location, $value] pairs, where
7332 # $value's are the values in all where_HOW variable, and $location
7333 # there associated location (the place here their parent variables were
7336 # FIXME: this should be rewritten to be cleaner. It should be broken
7337 # up into multiple functions.
7339 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7346 my $default_dist = 0;
7349 if ($args[0] eq '-noextra')
7353 elsif ($args[0] eq '-candist')
7357 elsif ($args[0] eq '-defaultdist')
7362 elsif ($args[0] !~ /^-/)
7369 my ($file, $primary, @prefix) = @args;
7371 # Now that configure substitutions are allowed in where_HOW
7372 # variables, it is an error to actually define the primary. We
7373 # allow 'JAVA', as it is customarily used to mean the Java
7374 # interpreter. This is but one of several Java hacks. Similarly,
7375 # 'PYTHON' is customarily used to mean the Python interpreter.
7376 reject_var $primary, "'$primary' is an anachronism"
7377 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7379 # Get the prefixes which are valid and actually used.
7380 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7382 # If a primary includes a configure substitution, then the EXTRA_
7383 # form is required. Otherwise we can't properly do our job.
7389 foreach my $X (@prefix)
7391 my $nodir_name = $X;
7392 my $one_name = $X . '_' . $primary;
7393 my $one_var = var $one_name;
7395 my $strip_subdir = 1;
7396 # If subdir prefix should be preserved, do so.
7397 if ($nodir_name =~ /^nobase_/)
7400 $nodir_name =~ s/^nobase_//;
7403 # If files should be distributed, do so.
7407 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7408 || (! $default_dist && $nodir_name =~ /^dist_/));
7409 $nodir_name =~ s/^(dist|nodist)_//;
7413 # Use the location of the currently processed variable.
7414 # We are not processing a particular condition, so pick the first
7416 my $tmpcond = $one_var->conditions->one_cond;
7417 my $where = $one_var->rdef ($tmpcond)->location->clone;
7419 # Append actual contents of where_PRIMARY variable to
7420 # @result, skipping @substitutions@.
7421 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7423 my ($loc, $value) = @$locvals;
7424 # Skip configure substitutions.
7425 if ($value =~ /^\@.*\@$/)
7427 if ($nodir_name eq 'EXTRA')
7430 "'$one_name' contains configure substitution, "
7433 # Check here to make sure variables defined in
7434 # configure.ac do not imply that EXTRA_PRIMARY
7436 elsif (! defined $configure_vars{$one_name})
7438 $require_extra = $one_name
7444 # Strip any $(EXEEXT) suffix the user might have added, or this
7445 # will confuse &handle_source_transform and &check_canonical_spelling.
7446 # We'll add $(EXEEXT) back later anyway.
7447 # Do it here rather than in handle_programs so the uniquifying at the
7448 # end of this function works.
7449 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7450 if $primary eq 'PROGRAMS';
7452 push (@result, $locvals);
7455 # A blatant hack: we rewrite each _PROGRAMS primary to include
7457 append_exeext { 1 } $one_name
7458 if $primary eq 'PROGRAMS';
7459 # "EXTRA" shouldn't be used when generating clean targets,
7460 # all, or install targets. We used to warn if EXTRA_FOO was
7461 # defined uselessly, but this was annoying.
7463 if $nodir_name eq 'EXTRA';
7465 if ($nodir_name eq 'check')
7467 push (@check, '$(' . $one_name . ')');
7471 push (@used, '$(' . $one_name . ')');
7474 # Is this to be installed?
7475 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7477 # If so, with install-exec? (or install-data?).
7478 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7480 my $check_options_p = $install_p && !! option 'std-options';
7482 # Use the location of the currently processed variable as context.
7483 $where->push_context ("while processing '$one_name'");
7485 # The variable containing all files to distribute.
7486 my $distvar = "\$($one_name)";
7487 $distvar = shadow_unconditionally ($one_name, $where)
7488 if ($dist_p && $one_var->has_conditional_contents);
7490 # Singular form of $PRIMARY.
7491 (my $one_primary = $primary) =~ s/S$//;
7492 $output_rules .= &file_contents ($file, $where,
7493 PRIMARY => $primary,
7494 ONE_PRIMARY => $one_primary,
7496 NDIR => $nodir_name,
7497 BASE => $strip_subdir,
7500 INSTALL => $install_p,
7502 DISTVAR => $distvar,
7503 'CK-OPTS' => $check_options_p);
7506 # The JAVA variable is used as the name of the Java interpreter.
7507 # The PYTHON variable is used as the name of the Python interpreter.
7508 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7511 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7512 $output_vars .= "\n";
7515 err_var ($require_extra,
7516 "'$require_extra' contains configure substitution,\n"
7517 . "but 'EXTRA_$primary' not defined")
7518 if ($require_extra && ! var ('EXTRA_' . $primary));
7520 # Push here because PRIMARY might be configure time determined.
7521 push (@all, '$(' . $primary . ')')
7522 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7524 # Make the result unique. This lets the user use conditionals in
7525 # a natural way, but still lets us program lazily -- we don't have
7526 # to worry about handling a particular object more than once.
7527 # We will keep only one location per object.
7529 for my $pair (@result)
7531 my ($loc, $val) = @$pair;
7532 $result{$val} = $loc;
7534 my @l = sort keys %result;
7535 return map { [$result{$_}->clone, $_] } @l;
7539 ################################################################
7541 # Each key in this hash is the name of a directory holding a
7542 # Makefile.in. These variables are local to 'is_make_dir'.
7544 my $make_dirs_set = 0;
7549 if (! $make_dirs_set)
7551 foreach my $iter (@configure_input_files)
7553 $make_dirs{dirname ($iter)} = 1;
7555 # We also want to notice Makefile.in's.
7556 foreach my $iter (@other_input_files)
7558 if ($iter =~ /Makefile\.in$/)
7560 $make_dirs{dirname ($iter)} = 1;
7565 return defined $make_dirs{$dir};
7568 ################################################################
7570 # Find the aux dir. This should match the algorithm used by
7571 # ./configure. (See the Autoconf documentation for for
7572 # AC_CONFIG_AUX_DIR.)
7573 sub locate_aux_dir ()
7575 if (! $config_aux_dir_set_in_configure_ac)
7577 # The default auxiliary directory is the first
7578 # of ., .., or ../.. that contains install-sh.
7579 # Assume . if install-sh doesn't exist yet.
7580 for my $dir (qw (. .. ../..))
7582 if (-f "$dir/install-sh")
7584 $config_aux_dir = $dir;
7588 $config_aux_dir = '.' unless $config_aux_dir;
7590 # Avoid unsightly '/.'s.
7591 $am_config_aux_dir =
7592 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7593 $am_config_aux_dir =~ s,/*$,,;
7597 # &push_required_file ($DIR, $FILE, $FULLFILE)
7598 # --------------------------------------------------
7599 # Push the given file onto DIST_COMMON.
7600 sub push_required_file
7602 my ($dir, $file, $fullfile) = @_;
7604 # If the file to be distributed is in the same directory of the
7605 # currently processed Makefile.am, then we want to distribute it
7606 # from this same Makefile.am.
7607 if ($dir eq $relative_dir)
7609 push_dist_common ($file);
7611 # This is needed to allow a construct in a non-top-level Makefile.am
7612 # to require a file in the build-aux directory (see at least the test
7613 # script 'test-driver-is-distributed.test'). This is related to the
7614 # automake bug#9546. Note that the use of $config_aux_dir instead
7615 # of $am_config_aux_dir here is deliberate and necessary.
7616 elsif ($dir eq $config_aux_dir)
7618 push_dist_common ("$am_config_aux_dir/$file");
7620 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7621 # We probably need some refactoring of this function and its callers,
7622 # to have a more explicit and systematic handling of all the special
7623 # cases; but, since there are only two of them, this is low-priority
7625 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7627 # Avoid unsightly '/.'s.
7628 my $am_config_libobj_dir =
7630 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7631 $am_config_libobj_dir =~ s|/*$||;
7632 push_dist_common ("$am_config_libobj_dir/$file");
7634 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7636 # If we are doing the topmost directory, and the file is in a
7637 # subdir which does not have a Makefile, then we distribute it
7640 # If a required file is above the source tree, it is important
7641 # to prefix it with '$(srcdir)' so that no VPATH search is
7642 # performed. Otherwise problems occur with Make implementations
7643 # that rewrite and simplify rules whose dependencies are found in a
7644 # VPATH location. Here is an example with OSF1/Tru64 Make.
7656 # Dependency '../a' was found in 'sub/../a', but this make
7657 # implementation simplified it as 'a'. (Note that the sub/
7658 # directory does not even exist.)
7660 # This kind of VPATH rewriting seems hard to cancel. The
7661 # distdir.am hack against VPATH rewriting works only when no
7662 # simplification is done, i.e., for dependencies which are in
7663 # subdirectories, not in enclosing directories. Hence, in
7664 # the latter case we use a full path to make sure no VPATH
7666 $fullfile = '$(srcdir)/' . $fullfile
7667 if $dir =~ m,^\.\.(?:$|/),;
7669 push_dist_common ($fullfile);
7673 prog_error "a Makefile in relative directory $relative_dir " .
7674 "can't add files in directory $dir to DIST_COMMON";
7679 # If a file name appears as a key in this hash, then it has already
7680 # been checked for. This allows us not to report the same error more
7682 my %required_file_not_found = ();
7684 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7685 # --------------------------------------------------------
7686 # Verify that the file must exist in $DIRECTORY, or install it.
7687 sub required_file_check_or_copy ($$$)
7689 my ($where, $dir, $file) = @_;
7691 my $fullfile = "$dir/$file";
7693 my $dangling_sym = 0;
7695 if (-l $fullfile && ! -f $fullfile)
7699 elsif (dir_has_case_matching_file ($dir, $file))
7704 # '--force-missing' only has an effect if '--add-missing' is
7707 if $found_it && (! $add_missing || ! $force_missing);
7709 # If we've already looked for it, we're done. You might
7710 # wonder why we don't do this before searching for the
7711 # file. If we do that, then something like
7712 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7716 return if defined $required_file_not_found{$fullfile};
7717 $required_file_not_found{$fullfile} = 1;
7719 if ($dangling_sym && $add_missing)
7728 # Only install missing files according to our desired
7730 my $message = "required file '$fullfile' not found";
7733 if (-f "$libdir/$file")
7737 # Install the missing file. Symlink if we
7738 # can, copy if we must. Note: delete the file
7739 # first, in case it is a dangling symlink.
7740 $message = "installing '$fullfile'";
7742 # The license file should not be volatile.
7743 if ($file eq "COPYING")
7745 $message .= " using GNU General Public License v3 file";
7746 $trailer2 = "\n Consider adding the COPYING file"
7747 . " to the version control system"
7748 . "\n for your code, to avoid questions"
7749 . " about which license your project uses";
7752 # Windows Perl will hang if we try to delete a
7753 # file that doesn't exist.
7754 unlink ($fullfile) if -f $fullfile;
7755 if ($symlink_exists && ! $copy_missing)
7757 if (! symlink ("$libdir/$file", $fullfile)
7761 $trailer = "; error while making link: $!";
7764 elsif (system ('cp', "$libdir/$file", $fullfile))
7767 $trailer = "\n error while copying";
7769 set_dir_cache_file ($dir, $file);
7774 $trailer = "\n 'automake --add-missing' can install '$file'"
7775 if -f "$libdir/$file";
7778 # If --force-missing was specified, and we have
7779 # actually found the file, then do nothing.
7781 if $found_it && $force_missing;
7783 # If we couldn't install the file, but it is a target in
7784 # the Makefile, don't print anything. This allows files
7785 # like README, AUTHORS, or THANKS to be generated.
7787 if !$suppress && rule $file;
7789 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7793 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7794 # ----------------------------------------------------------------------
7795 # Verify that the file must exist in $DIRECTORY, or install it.
7796 # $MYSTRICT is the strictness level at which this file becomes required.
7797 # Worker threads may queue up the action to be serialized by the master,
7799 sub require_file_internal ($$$@)
7801 my ($where, $mystrict, $dir, $queue, @files) = @_;
7804 unless $strictness >= $mystrict;
7806 foreach my $file (@files)
7808 push_required_file ($dir, $file, "$dir/$file");
7811 queue_required_file_check_or_copy ($required_conf_file_queue,
7812 QUEUE_CONF_FILE, $relative_dir,
7813 $where, $mystrict, @files);
7817 required_file_check_or_copy ($where, $dir, $file);
7822 # &require_file ($WHERE, $MYSTRICT, @FILES)
7823 # -----------------------------------------
7824 sub require_file ($$@)
7826 my ($where, $mystrict, @files) = @_;
7827 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7830 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7831 # -----------------------------------------------------------
7832 sub require_file_with_macro ($$$@)
7834 my ($cond, $macro, $mystrict, @files) = @_;
7835 $macro = rvar ($macro) unless ref $macro;
7836 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7839 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7840 # ----------------------------------------------------------------
7841 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7842 # must be in that directory. Otherwise expect it in the current directory.
7843 sub require_libsource_with_macro ($$$@)
7845 my ($cond, $macro, $mystrict, @files) = @_;
7846 $macro = rvar ($macro) unless ref $macro;
7847 if ($config_libobj_dir)
7849 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7850 $config_libobj_dir, 0, @files);
7854 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7858 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7859 # $MYSTRICT, @FILES)
7860 # ---------------------------------------------------------------
7861 sub queue_required_file_check_or_copy ($$$$@)
7863 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7867 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7871 @serial_loc = (QUEUE_STRING, $where);
7873 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7876 # &require_queued_file_check_or_copy ($QUEUE)
7877 # -------------------------------------------
7878 sub require_queued_file_check_or_copy ($)
7882 my $dir = $queue->dequeue ();
7883 my $loc_key = $queue->dequeue ();
7884 if ($loc_key eq QUEUE_LOCATION)
7886 $where = Automake::Location::deserialize ($queue);
7888 elsif ($loc_key eq QUEUE_STRING)
7890 $where = $queue->dequeue ();
7894 prog_error "unexpected key $loc_key";
7896 my $mystrict = $queue->dequeue ();
7897 my $nfiles = $queue->dequeue ();
7899 push @files, $queue->dequeue ()
7900 foreach (1 .. $nfiles);
7902 unless $strictness >= $mystrict;
7903 foreach my $file (@files)
7905 required_file_check_or_copy ($where, $config_aux_dir, $file);
7909 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7910 # ----------------------------------------------
7911 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7912 sub require_conf_file ($$@)
7914 my ($where, $mystrict, @files) = @_;
7915 my $queue = defined $required_conf_file_queue ? 1 : 0;
7916 require_file_internal ($where, $mystrict, $config_aux_dir,
7921 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7922 # ----------------------------------------------------------------
7923 sub require_conf_file_with_macro ($$$@)
7925 my ($cond, $macro, $mystrict, @files) = @_;
7926 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7930 ################################################################
7932 # &require_build_directory ($DIRECTORY)
7933 # -------------------------------------
7934 # Emit rules to create $DIRECTORY if needed, and return
7935 # the file that any target requiring this directory should be made
7937 # We don't want to emit the rule twice, and want to reuse it
7938 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7939 sub require_build_directory ($)
7941 my $directory = shift;
7943 return $directory_map{$directory} if exists $directory_map{$directory};
7945 my $cdir = File::Spec->canonpath ($directory);
7947 if (exists $directory_map{$cdir})
7949 my $stamp = $directory_map{$cdir};
7950 $directory_map{$directory} = $stamp;
7954 my $dirstamp = "$cdir/\$(am__dirstamp)";
7956 $directory_map{$directory} = $dirstamp;
7957 $directory_map{$cdir} = $dirstamp;
7959 # Set a variable for the dirstamp basename.
7960 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7961 '$(am__leading_dot)dirstamp');
7963 # Directory must be removed by 'make distclean'.
7964 $clean_files{$dirstamp} = DIST_CLEAN;
7966 $output_rules .= ("$dirstamp:\n"
7967 . "\t\@\$(MKDIR_P) $directory\n"
7968 . "\t\@: > $dirstamp\n");
7973 # &require_build_directory_maybe ($FILE)
7974 # --------------------------------------
7975 # If $FILE lies in a subdirectory, emit a rule to create this
7976 # directory and return the file that $FILE should be made
7977 # dependent upon. Otherwise, just return the empty string.
7978 sub require_build_directory_maybe ($)
7981 my $directory = dirname ($file);
7983 if ($directory ne '.')
7985 return require_build_directory ($directory);
7993 ################################################################
7995 # Push a list of files onto dist_common.
7996 sub push_dist_common
7998 prog_error "push_dist_common run after handle_dist"
7999 if $handle_dist_run;
8000 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8001 '', INTERNAL, VAR_PRETTY);
8005 ################################################################
8007 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8008 # ----------------------------------------------
8009 # Generate a Makefile.in given the name of the corresponding Makefile and
8010 # the name of the file output by config.status.
8011 sub generate_makefile ($$)
8013 my ($makefile_am, $makefile_in) = @_;
8015 # Reset all the Makefile.am related variables.
8016 initialize_per_input;
8018 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8019 # warnings for this file. So hold any warning issued before
8020 # we have processed AUTOMAKE_OPTIONS.
8021 buffer_messages ('warning');
8023 # Name of input file ("Makefile.am") and output file
8024 # ("Makefile.in"). These have no directory components.
8025 $am_file_name = basename ($makefile_am);
8026 $in_file_name = basename ($makefile_in);
8028 # $OUTPUT is encoded. If it contains a ":" then the first element
8029 # is the real output file, and all remaining elements are input
8030 # files. We don't scan or otherwise deal with these input files,
8031 # other than to mark them as dependencies. See
8032 # &scan_autoconf_files for details.
8033 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8035 $relative_dir = dirname ($makefile);
8036 $am_relative_dir = dirname ($makefile_am);
8037 $topsrcdir = backname ($relative_dir);
8039 read_main_am_file ($makefile_am);
8042 # Process buffered warnings.
8044 # Fatal error. Just return, so we can continue with next file.
8047 # Process buffered warnings.
8050 # There are a few install-related variables that you should not define.
8051 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8056 my $def = $v->def (TRUE);
8057 prog_error "$var not defined in condition TRUE"
8059 reject_var $var, "'$var' should not be defined"
8060 if $def->owner != VAR_AUTOMAKE;
8064 # Catch some obsolete variables.
8065 msg_var ('obsolete', 'INCLUDES',
8066 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
8067 if var ('INCLUDES');
8069 # Must do this after reading .am file.
8070 define_variable ('subdir', $relative_dir, INTERNAL);
8072 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8073 # recursive rules are enabled.
8074 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8075 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8077 # Check first, because we might modify some state.
8079 check_gnu_standards;
8080 check_gnits_standards;
8082 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8089 # These must be run after all the sources are scanned. They
8090 # use variables defined by &handle_libraries, &handle_ltlibraries,
8091 # or &handle_programs.
8096 # Variables used by distdir.am and tags.am.
8097 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8098 if (! option 'no-dist')
8100 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8112 handle_minor_options;
8113 # Must come after handle_programs so that %known_programs is up-to-date.
8116 # This must come after most other rules.
8120 do_check_merge_target;
8121 handle_all ($makefile);
8124 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8126 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8128 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8130 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8134 handle_clean ($makefile);
8135 handle_factored_dependencies;
8137 # Comes last, because all the above procedures may have
8138 # defined or overridden variables.
8139 $output_vars .= output_variables;
8143 if ($exit_code != 0)
8145 verb "not writing $makefile_in because of earlier errors";
8149 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8151 # We make sure that 'all:' is the first target.
8153 "$output_vars$output_all$output_header$output_rules$output_trailer";
8155 # Decide whether we must update the output file or not.
8156 # We have to update in the following situations.
8157 # * $force_generation is set.
8158 # * any of the output dependencies is younger than the output
8159 # * the contents of the output is different (this can happen
8160 # if the project has been populated with a file listed in
8161 # @common_files since the last run).
8162 # Output's dependencies are split in two sets:
8163 # * dependencies which are also configure dependencies
8164 # These do not change between each Makefile.am
8165 # * other dependencies, specific to the Makefile.am being processed
8166 # (such as the Makefile.am itself, or any Makefile fragment
8168 my $timestamp = mtime $makefile_in;
8169 if (! $force_generation
8170 && $configure_deps_greatest_timestamp < $timestamp
8171 && $output_deps_greatest_timestamp < $timestamp
8172 && $output eq contents ($makefile_in))
8174 verb "$makefile_in unchanged";
8175 # No need to update.
8179 if (-e $makefile_in)
8181 unlink ($makefile_in)
8182 or fatal "cannot remove $makefile_in: $!";
8185 my $gm_file = new Automake::XFile "> $makefile_in";
8186 verb "creating $makefile_in";
8187 print $gm_file $output;
8190 ################################################################
8195 ################################################################
8197 # Helper function for usage().
8198 sub print_autodist_files (@)
8200 my @lcomm = sort (&uniq (@_));
8203 format USAGE_FORMAT =
8204 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8205 $four[0], $four[1], $four[2], $four[3]
8207 local $~ = "USAGE_FORMAT";
8210 my $rows = int(@lcomm / $cols);
8211 my $rest = @lcomm % $cols;
8222 for (my $y = 0; $y < $rows; $y++)
8224 @four = ("", "", "", "");
8225 for (my $x = 0; $x < $cols; $x++)
8227 last if $y + 1 == $rows && $x == $rest;
8229 my $idx = (($x > $rest)
8230 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8234 $four[$x] = $lcomm[$idx];
8241 # Print usage information.
8244 print "Usage: $0 [OPTION]... [Makefile]...
8246 Generate Makefile.in for configure from Makefile.am.
8249 --help print this help, then exit
8250 --version print version number, then exit
8251 -v, --verbose verbosely list files processed
8252 --no-force only update Makefile.in's that are out of date
8253 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8255 Dependency tracking:
8256 -i, --ignore-deps disable dependency tracking code
8257 --include-deps enable dependency tracking code
8260 --cygnus assume program is part of Cygnus-style tree
8261 --foreign set strictness to foreign
8262 --gnits set strictness to gnits
8263 --gnu set strictness to gnu
8266 -a, --add-missing add missing standard files to package
8267 --libdir=DIR set directory storing library files
8268 --print-libdir print directory storing library files
8269 -c, --copy with -a, copy missing files (default is symlink)
8270 -f, --force-missing force update of standard files
8273 Automake::ChannelDefs::usage;
8275 print "\nFiles automatically distributed if found " .
8277 print_autodist_files @common_files;
8278 print "\nFiles automatically distributed if found " .
8279 "(under certain conditions):\n";
8280 print_autodist_files @common_sometimes;
8283 Report bugs to <@PACKAGE_BUGREPORT@>.
8284 GNU Automake home page: <@PACKAGE_URL@>.
8285 General help using GNU software: <http://www.gnu.org/gethelp/>.
8288 # --help always returns 0 per GNU standards.
8295 # Print version information
8299 automake (GNU $PACKAGE) $VERSION
8300 Copyright (C) 2011 Free Software Foundation, Inc.
8301 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8302 This is free software: you are free to change and redistribute it.
8303 There is NO WARRANTY, to the extent permitted by law.
8305 Written by Tom Tromey <tromey\@redhat.com>
8306 and Alexandre Duret-Lutz <adl\@gnu.org>.
8308 # --version always returns 0 per GNU standards.
8312 ################################################################
8314 # Parse command line.
8315 sub parse_arguments ()
8319 my $ignore_deps = 0;
8324 'version' => \&version,
8326 'libdir=s' => \$libdir,
8327 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8328 'gnu' => sub { $strict = 'gnu'; },
8329 'gnits' => sub { $strict = 'gnits'; },
8330 'foreign' => sub { $strict = 'foreign'; },
8331 'cygnus' => \$cygnus,
8332 'include-deps' => sub { $ignore_deps = 0; },
8333 'i|ignore-deps' => sub { $ignore_deps = 1; },
8334 'no-force' => sub { $force_generation = 0; },
8335 'f|force-missing' => \$force_missing,
8336 'a|add-missing' => \$add_missing,
8337 'c|copy' => \$copy_missing,
8338 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8339 'W|warnings=s' => \@warnings,
8342 use Automake::Getopt ();
8343 Automake::Getopt::parse_options %cli_options;
8345 set_strictness ($strict);
8346 my $cli_where = new Automake::Location;
8347 set_global_option ('cygnus', $cli_where) if $cygnus;
8348 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8349 for my $warning (@warnings)
8351 &parse_warnings ('-W', $warning);
8354 return unless @ARGV;
8357 foreach my $arg (@ARGV)
8359 fatal ("empty argument\nTry '$0 --help' for more information")
8362 # Handle $local:$input syntax.
8363 my ($local, @rest) = split (/:/, $arg);
8364 @rest = ("$local.in",) unless @rest;
8365 my $input = locate_am @rest;
8368 push @input_files, $input;
8369 $output_files{$input} = join (':', ($local, @rest));
8373 error "no Automake input file found for '$arg'";
8377 fatal "no input file found among supplied arguments"
8378 if $errspec && ! @input_files;
8382 # handle_makefile ($MAKEFILE_IN)
8383 # ------------------------------
8384 # Deal with $MAKEFILE_IN.
8385 sub handle_makefile ($)
8388 ($am_file = $file) =~ s/\.in$//;
8389 if (! -f ($am_file . '.am'))
8391 error "'$am_file.am' does not exist";
8395 # Any warning setting now local to this Makefile.am.
8398 generate_makefile ($am_file . '.am', $file);
8400 # Back out any warning setting.
8405 # handle_makefiles_serial ()
8406 # --------------------------
8407 # Deal with all makefiles, without threads.
8408 sub handle_makefiles_serial ()
8410 foreach my $file (@input_files)
8412 handle_makefile ($file);
8416 # get_number_of_threads ()
8417 # ------------------------
8418 # Logic for deciding how many worker threads to use.
8419 sub get_number_of_threads
8421 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8424 unless $nthreads =~ /^[0-9]+$/;
8426 # It doesn't make sense to use more threads than makefiles,
8427 my $max_threads = @input_files;
8429 if ($nthreads > $max_threads)
8431 $nthreads = $max_threads;
8436 # handle_makefiles_threaded ($NTHREADS)
8437 # -------------------------------------
8438 # Deal with all makefiles, using threads. The general strategy is to
8439 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8440 # worker threads push back everything that needs serialization:
8441 # * warning and (normal) error messages, for stable stderr output
8442 # order and content (avoiding duplicates, for example),
8443 # * races when installing aux files (and respective messages),
8444 # * races when collecting aux files for distribution.
8446 # The latter requires that the makefile that deals with the aux dir
8447 # files be handled last, done by the master thread.
8448 sub handle_makefiles_threaded ($)
8450 my ($nthreads) = @_;
8452 # The file queue distributes all makefiles, the message queues
8453 # collect all serializations needed for respective files.
8454 my $file_queue = Thread::Queue->new;
8456 foreach my $file (@input_files)
8458 $msg_queues{$file} = Thread::Queue->new;
8461 verb "spawning $nthreads worker threads";
8462 my @threads = (1 .. $nthreads);
8463 foreach my $t (@threads)
8465 $t = threads->new (sub
8467 while (my $file = $file_queue->dequeue)
8469 verb "handling $file";
8470 my $queue = $msg_queues{$file};
8471 setup_channel_queue ($queue, QUEUE_MESSAGE);
8472 $required_conf_file_queue = $queue;
8473 handle_makefile ($file);
8474 $queue->enqueue (undef);
8475 setup_channel_queue (undef, undef);
8476 $required_conf_file_queue = undef;
8482 # Queue all makefiles.
8483 verb "queuing " . @input_files . " input files";
8484 $file_queue->enqueue (@input_files, (undef) x @threads);
8486 # Collect and process serializations.
8487 foreach my $file (@input_files)
8489 verb "dequeuing messages for " . $file;
8490 reset_local_duplicates ();
8491 my $queue = $msg_queues{$file};
8492 while (my $key = $queue->dequeue)
8494 if ($key eq QUEUE_MESSAGE)
8496 pop_channel_queue ($queue);
8498 elsif ($key eq QUEUE_CONF_FILE)
8500 require_queued_file_check_or_copy ($queue);
8504 prog_error "unexpected key $key";
8509 foreach my $t (@threads)
8511 my @exit_thread = $t->join;
8512 $exit_code = $exit_thread[0]
8513 if ($exit_thread[0] > $exit_code);
8517 ################################################################
8519 # Parse the WARNINGS environment variable.
8522 # Parse command line.
8525 $configure_ac = require_configure_ac;
8527 # Do configure.ac scan only once.
8528 scan_autoconf_files;
8533 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8534 if -f 'Makefile.am';
8535 fatal ("no 'Makefile.am' found for any configure output$msg");
8538 my $nthreads = get_number_of_threads ();
8540 if ($perl_threads && $nthreads >= 1)
8542 handle_makefiles_threaded ($nthreads);
8546 handle_makefiles_serial ();
8552 ### Setup "GNU" style for perl-mode and cperl-mode.
8554 ## perl-indent-level: 2
8555 ## perl-continued-statement-offset: 2
8556 ## perl-continued-brace-offset: 0
8557 ## perl-brace-offset: 0
8558 ## perl-brace-imaginary-offset: 0
8559 ## perl-label-offset: -2
8560 ## cperl-indent-level: 2
8561 ## cperl-brace-offset: 0
8562 ## cperl-continued-brace-offset: 0
8563 ## cperl-label-offset: -2
8564 ## cperl-extra-newline-before-brace: t
8565 ## cperl-merge-trailing-else: nil
8566 ## cperl-continued-statement-offset: 2