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 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 $gen_copyright = "\
255 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
257 # This Makefile.in is free software; the Free Software Foundation
258 # gives unlimited permission to copy and/or distribute it,
259 # with or without modifications, as long as this notice is preserved.
261 # This program is distributed in the hope that it will be useful,
262 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
263 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
264 # PARTICULAR PURPOSE.
267 # These constants are returned by the lang_*_rewrite functions.
268 # LANG_SUBDIR means that the resulting object file should be in a
269 # subdir if the source file is. In this case the file name cannot
270 # have '..' components.
271 use constant LANG_IGNORE => 0;
272 use constant LANG_PROCESS => 1;
273 use constant LANG_SUBDIR => 2;
275 # These are used when keeping track of whether an object can be built
276 # by two different paths.
277 use constant COMPILE_LIBTOOL => 1;
278 use constant COMPILE_ORDINARY => 2;
280 # We can't always associate a location to a variable or a rule,
281 # when it's defined by Automake. We use INTERNAL in this case.
282 use constant INTERNAL => new Automake::Location;
284 # Serialization keys for message queues.
285 use constant QUEUE_MESSAGE => "msg";
286 use constant QUEUE_CONF_FILE => "conf file";
287 use constant QUEUE_LOCATION => "location";
288 use constant QUEUE_STRING => "string";
290 ## ---------------------------------- ##
291 ## Variables related to the options. ##
292 ## ---------------------------------- ##
294 # TRUE if we should always generate Makefile.in.
295 my $force_generation = 1;
297 # From the Perl manual.
298 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
300 # TRUE if missing standard files should be installed.
303 # TRUE if we should copy missing files; otherwise symlink if possible.
304 my $copy_missing = 0;
306 # TRUE if we should always update files that we know about.
307 my $force_missing = 0;
310 ## ---------------------------------------- ##
311 ## Variables filled during files scanning. ##
312 ## ---------------------------------------- ##
314 # Name of the configure.ac file.
317 # Files found by scanning configure.ac for LIBOBJS.
320 # Names used in AC_CONFIG_HEADER call.
321 my @config_headers = ();
323 # Names used in AC_CONFIG_LINKS call.
324 my @config_links = ();
326 # List of Makefile.am's to process, and their corresponding outputs.
327 my @input_files = ();
328 my %output_files = ();
330 # Complete list of Makefile.am's that exist.
331 my @configure_input_files = ();
333 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
335 my @other_input_files = ();
336 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
337 # The keys are the files created by these macros.
338 my %ac_config_files_location = ();
339 # The condition under which AC_CONFIG_FOOS appears.
340 my %ac_config_files_condition = ();
342 # Directory to search for configure-required files. This
343 # will be computed by &locate_aux_dir and can be set using
344 # AC_CONFIG_AUX_DIR in configure.ac.
345 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
346 my $config_aux_dir = '';
347 my $config_aux_dir_set_in_configure_ac = 0;
348 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
350 my $am_config_aux_dir = '';
352 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
354 my $config_libobj_dir = '';
356 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
357 my $seen_gettext = 0;
358 # Whether AM_GNU_GETTEXT([external]) is used.
359 my $seen_gettext_external = 0;
360 # Where AM_GNU_GETTEXT appears.
361 my $ac_gettext_location;
362 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
363 my $seen_gettext_intl = 0;
365 # The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
366 my @extra_recursive_targets = ();
368 # Lists of tags supported by Libtool.
369 my %libtool_tags = ();
370 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
371 # uses AC_REQUIRE_AUX_FILE.
372 my $libtool_new_api = 0;
374 # Most important AC_CANONICAL_* macro seen so far.
375 my $seen_canonical = 0;
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,
468 'cscopelist-am' => 1,
472 # Queue to push require_conf_file requirements to.
473 my $required_conf_file_queue;
475 # The name of the Makefile currently being processed.
478 ################################################################
480 ## ------------------------------------------ ##
481 ## Variables reset by &initialize_per_input. ##
482 ## ------------------------------------------ ##
484 # Basename and relative dir of the input file.
486 # Same but wrt Makefile.in.
489 # Greatest timestamp of the output's dependencies (excluding
490 # configure's dependencies).
491 my $output_deps_greatest_timestamp;
493 # These variables are used when generating each Makefile.in.
494 # They hold the Makefile.in until it is ready to be printed.
501 # This is the conditional stack, updated on if/else/endif, and
502 # used to build Condition objects.
505 # This holds the set of included files.
508 # List of dependencies for the obvious targets.
513 # Keys in this hash table are files to delete. The associated
514 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
517 # Keys in this hash table are object files or other files in
518 # subdirectories which need to be removed. This only holds files
519 # which are created by compilations. The value in the hash indicates
520 # when the file should be removed.
521 my %compile_clean_files;
523 # Keys in this hash table are directories where we expect to build a
524 # libtool object. We use this information to decide what directories
526 my %libtool_clean_directories;
528 # Value of $(SOURCES), used by tags.am.
530 # Sources which go in the distribution.
533 # This hash maps object file names onto their corresponding source
534 # file names. This is used to ensure that each object is created
535 # by a single source file.
538 # This hash maps object file names onto an integer value representing
539 # whether this object has been built via ordinary compilation or
540 # libtool compilation (the COMPILE_* constants).
541 my %object_compilation_map;
544 # This keeps track of the directories for which we've already
545 # created dirstamp code. Keys are directories, values are stamp files.
546 # Several keys can share the same stamp files if they are equivalent
547 # (as are './/foo' and 'foo').
553 # This is a list of all targets to run during "make dist".
556 # Keep track of all programs declared in this Makefile, without
557 # $(EXEEXT). @substitutions@ are not listed.
561 # This keeps track of which extensions we've seen (that we care
565 # This is random scratch space for the language finish functions.
566 # Don't randomly overwrite it; examine other uses of keys first.
567 my %language_scratch;
569 # We keep track of which objects need special (per-executable)
570 # handling on a per-language basis.
571 my %lang_specific_files;
573 # This is set when 'handle_dist' has finished. Once this happens,
574 # we should no longer push on dist_common.
577 # Used to store a set of linkers needed to generate the sources currently
578 # under consideration.
581 # True if we need 'LINK' defined. This is a hack.
584 # Does the generated Makefile have to build some compiled object
585 # (for binary programs, or plain or libtool libraries)?
586 my $must_handle_compiled_objects;
588 # Record each file processed by make_paragraphs.
589 my %transformed_files;
591 ################################################################
593 ## ---------------------------------------------- ##
594 ## Variables not reset by &initialize_per_input. ##
595 ## ---------------------------------------------- ##
597 # Cache each file processed by make_paragraphs.
598 # (This is different from %transformed_files because
599 # %transformed_files is reset for each file while %am_file_cache
600 # it global to the run.)
603 ################################################################
605 # var_SUFFIXES_trigger ($TYPE, $VALUE)
606 # ------------------------------------
607 # This is called by Automake::Variable::define() when SUFFIXES
608 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
609 # The work here needs to be performed as a side-effect of the
610 # macro_define() call because SUFFIXES definitions impact
611 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
613 sub var_SUFFIXES_trigger ($$)
615 my ($type, $value) = @_;
616 accept_extensions (split (' ', $value));
618 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
620 ################################################################
622 ## --------------------------------- ##
623 ## Forward subroutine declarations. ##
624 ## --------------------------------- ##
625 sub register_language (%);
626 sub file_contents_internal ($$$%);
627 sub define_files_variable ($\@$$);
630 # &initialize_per_input ()
631 # ------------------------
632 # (Re)-Initialize per-Makefile.am variables.
633 sub initialize_per_input ()
635 reset_local_duplicates ();
637 $am_relative_dir = undef;
638 $relative_dir = undef;
640 $output_deps_greatest_timestamp = 0;
646 $output_trailer = '';
648 Automake::Options::reset;
649 Automake::Variable::reset;
650 Automake::Rule::reset;
661 %compile_clean_files = ();
663 # We always include '.'. This isn't strictly correct.
664 %libtool_clean_directories = ('.' => 1);
670 %object_compilation_map = ();
678 %known_programs = ();
679 %known_libraries= ();
681 %extension_seen = ();
683 %language_scratch = ();
685 %lang_specific_files = ();
687 $handle_dist_run = 0;
691 $must_handle_compiled_objects = 0;
693 %transformed_files = ();
697 ################################################################
699 # Initialize our list of languages that are internally supported.
702 register_language ('name' => 'c',
704 'config_vars' => ['CC'],
706 'flags' => ['CFLAGS', 'CPPFLAGS'],
708 'compiler' => 'COMPILE',
709 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
713 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
714 'compile_flag' => '-c',
715 'libtool_tag' => 'CC',
716 'extensions' => ['.c']);
719 register_language ('name' => 'cxx',
721 'config_vars' => ['CXX'],
722 'linker' => 'CXXLINK',
723 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
725 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
726 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
728 'compiler' => 'CXXCOMPILE',
729 'compile_flag' => '-c',
730 'output_flag' => '-o',
731 'libtool_tag' => 'CXX',
735 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
738 register_language ('name' => 'objc',
739 'Name' => 'Objective C',
740 'config_vars' => ['OBJC'],
741 'linker' => 'OBJCLINK',
742 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
744 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
745 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
747 'compiler' => 'OBJCCOMPILE',
748 'compile_flag' => '-c',
749 'output_flag' => '-o',
753 'extensions' => ['.m']);
756 register_language ('name' => 'objcxx',
757 'Name' => 'Objective C++',
758 'config_vars' => ['OBJCXX'],
759 'linker' => 'OBJCXXLINK',
760 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
761 'autodep' => 'OBJCXX',
762 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
763 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
765 'compiler' => 'OBJCXXCOMPILE',
766 'compile_flag' => '-c',
767 'output_flag' => '-o',
768 'lder' => 'OBJCXXLD',
771 'extensions' => ['.mm']);
773 # Unified Parallel C.
774 register_language ('name' => 'upc',
775 'Name' => 'Unified Parallel C',
776 'config_vars' => ['UPC'],
777 'linker' => 'UPCLINK',
778 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
780 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
781 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
783 'compiler' => 'UPCCOMPILE',
784 'compile_flag' => '-c',
785 'output_flag' => '-o',
789 'extensions' => ['.upc']);
792 register_language ('name' => 'header',
794 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
797 'output_extensions' => sub { return () },
799 '_finish' => sub { });
802 register_language ('name' => 'vala',
804 'config_vars' => ['VALAC'],
806 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
808 'compiler' => 'VALACOMPILE',
809 'extensions' => ['.vala'],
810 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
812 'rule_file' => 'vala',
813 '_finish' => \&lang_vala_finish,
814 '_target_hook' => \&lang_vala_target_hook,
815 'nodist_specific' => 1);
818 register_language ('name' => 'yacc',
820 'config_vars' => ['YACC'],
821 'flags' => ['YFLAGS'],
822 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
824 'compiler' => 'YACCCOMPILE',
825 'extensions' => ['.y'],
826 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
828 'rule_file' => 'yacc',
829 '_finish' => \&lang_yacc_finish,
830 '_target_hook' => \&lang_yacc_target_hook,
831 'nodist_specific' => 1);
832 register_language ('name' => 'yaccxx',
833 'Name' => 'Yacc (C++)',
834 'config_vars' => ['YACC'],
835 'rule_file' => 'yacc',
836 'flags' => ['YFLAGS'],
838 'compiler' => 'YACCCOMPILE',
839 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
840 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
841 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
843 '_finish' => \&lang_yacc_finish,
844 '_target_hook' => \&lang_yacc_target_hook,
845 'nodist_specific' => 1);
848 register_language ('name' => 'lex',
850 'config_vars' => ['LEX'],
851 'rule_file' => 'lex',
852 'flags' => ['LFLAGS'],
853 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
855 'compiler' => 'LEXCOMPILE',
856 'extensions' => ['.l'],
857 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
859 '_finish' => \&lang_lex_finish,
860 '_target_hook' => \&lang_lex_target_hook,
861 'nodist_specific' => 1);
862 register_language ('name' => 'lexxx',
863 'Name' => 'Lex (C++)',
864 'config_vars' => ['LEX'],
865 'rule_file' => 'lex',
866 'flags' => ['LFLAGS'],
867 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
869 'compiler' => 'LEXCOMPILE',
870 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
871 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
873 '_finish' => \&lang_lex_finish,
874 '_target_hook' => \&lang_lex_target_hook,
875 'nodist_specific' => 1);
878 register_language ('name' => 'asm',
879 'Name' => 'Assembler',
880 'config_vars' => ['CCAS', 'CCASFLAGS'],
882 'flags' => ['CCASFLAGS'],
883 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
884 # or anything else required. They can also set CCAS.
885 # Or simply use Preprocessed Assembler.
886 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
888 'compiler' => 'CCASCOMPILE',
889 'compile_flag' => '-c',
890 'output_flag' => '-o',
891 'extensions' => ['.s']);
893 # Preprocessed Assembler.
894 register_language ('name' => 'cppasm',
895 'Name' => 'Preprocessed Assembler',
896 'config_vars' => ['CCAS', 'CCASFLAGS'],
899 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
900 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
902 'compiler' => 'CPPASCOMPILE',
903 'compile_flag' => '-c',
904 'output_flag' => '-o',
905 'extensions' => ['.S', '.sx']);
908 register_language ('name' => 'f77',
909 'Name' => 'Fortran 77',
910 'config_vars' => ['F77'],
911 'linker' => 'F77LINK',
912 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
913 'flags' => ['FFLAGS'],
914 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
916 'compiler' => 'F77COMPILE',
917 'compile_flag' => '-c',
918 'output_flag' => '-o',
919 'libtool_tag' => 'F77',
923 'extensions' => ['.f', '.for']);
926 register_language ('name' => 'fc',
928 'config_vars' => ['FC'],
929 'linker' => 'FCLINK',
930 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
931 'flags' => ['FCFLAGS'],
932 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
934 'compiler' => 'FCCOMPILE',
935 'compile_flag' => '-c',
936 'output_flag' => '-o',
937 'libtool_tag' => 'FC',
941 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
943 # Preprocessed Fortran
944 register_language ('name' => 'ppfc',
945 'Name' => 'Preprocessed Fortran',
946 'config_vars' => ['FC'],
947 'linker' => 'FCLINK',
948 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
951 'flags' => ['FCFLAGS', 'CPPFLAGS'],
953 'compiler' => 'PPFCCOMPILE',
954 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
955 'compile_flag' => '-c',
956 'output_flag' => '-o',
957 'libtool_tag' => 'FC',
959 'extensions' => ['.F90','.F95', '.F03', '.F08']);
961 # Preprocessed Fortran 77
963 # The current support for preprocessing Fortran 77 just involves
964 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
965 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
966 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
967 # for 'make' Version 3.76 Beta" (specifically, from info file
968 # '(make)Catalogue of Rules').
970 # A better approach would be to write an Autoconf test
971 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
972 # Fortran 77 compilers know how to do preprocessing. The Autoconf
973 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
974 # preprocessing capabilities, and then fall back on cpp (if cpp were
976 register_language ('name' => 'ppf77',
977 'Name' => 'Preprocessed Fortran 77',
978 'config_vars' => ['F77'],
979 'linker' => 'F77LINK',
980 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
983 'flags' => ['FFLAGS', 'CPPFLAGS'],
985 'compiler' => 'PPF77COMPILE',
986 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
987 'compile_flag' => '-c',
988 'output_flag' => '-o',
989 'libtool_tag' => 'F77',
991 'extensions' => ['.F']);
994 register_language ('name' => 'ratfor',
996 'config_vars' => ['F77'],
997 'linker' => 'F77LINK',
998 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1001 'flags' => ['RFLAGS', 'FFLAGS'],
1002 # FIXME also FFLAGS.
1003 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1005 'compiler' => 'RCOMPILE',
1006 'compile_flag' => '-c',
1007 'output_flag' => '-o',
1008 'libtool_tag' => 'F77',
1010 'extensions' => ['.r']);
1013 register_language ('name' => 'java',
1015 'config_vars' => ['GCJ'],
1016 'linker' => 'GCJLINK',
1017 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1019 'flags' => ['GCJFLAGS'],
1020 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1022 'compiler' => 'GCJCOMPILE',
1023 'compile_flag' => '-c',
1024 'output_flag' => '-o',
1025 'libtool_tag' => 'GCJ',
1029 'extensions' => ['.java', '.class', '.zip', '.jar']);
1031 ################################################################
1033 # Error reporting functions.
1035 # err_am ($MESSAGE, [%OPTIONS])
1036 # -----------------------------
1037 # Uncategorized errors about the current Makefile.am.
1040 msg_am ('error', @_);
1043 # err_ac ($MESSAGE, [%OPTIONS])
1044 # -----------------------------
1045 # Uncategorized errors about configure.ac.
1048 msg_ac ('error', @_);
1051 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1052 # ---------------------------------------
1053 # Messages about about the current Makefile.am.
1056 my ($channel, $msg, %opts) = @_;
1057 msg $channel, "${am_file}.am", $msg, %opts;
1060 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1061 # ---------------------------------------
1062 # Messages about about configure.ac.
1065 my ($channel, $msg, %opts) = @_;
1066 msg $channel, $configure_ac, $msg, %opts;
1069 ################################################################
1073 # Return a configure-style substitution using the indicated text.
1074 # We do this to avoid having the substitutions directly in automake.in;
1075 # when we do that they are sometimes removed and this causes confusion
1080 return '@' . $text . '@';
1083 ################################################################
1087 # &backname ($RELDIR)
1088 # --------------------
1089 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1090 # For instance 'src/foo' => '../..'.
1091 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1096 foreach (split (/\//, $file))
1098 next if $_ eq '.' || $_ eq '';
1102 or prog_error ("trying to reverse path '$file' pointing outside tree");
1109 return join ('/', @res) || '.';
1112 ################################################################
1114 # Silent rules handling functions.
1116 # verbose_var (NAME)
1117 # ------------------
1118 # The public variable stem used to implement silent rules.
1122 return 'AM_V_' . $name;
1125 # verbose_private_var (NAME)
1126 # --------------------------
1127 # The naming policy for the private variables for silent rules.
1128 sub verbose_private_var ($)
1131 return 'am__v_' . $name;
1134 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1135 # ----------------------------------------------------------
1136 # For silent rules, setup VAR and dispatcher, to expand to
1137 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1139 sub define_verbose_var ($$;$)
1141 my ($name, $silent_val, $verbose_val) = @_;
1142 $verbose_val = '' unless defined $verbose_val;
1143 my $var = verbose_var ($name);
1144 my $pvar = verbose_private_var ($name);
1145 my $silent_var = $pvar . '_0';
1146 my $verbose_var = $pvar . '_1';
1147 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1148 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1149 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1150 # See AM_SILENT_RULES in m4/silent.m4.
1151 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1152 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1154 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1155 $silent_val, '', INTERNAL, VAR_ASIS)
1156 if (! vardef ($silent_var, TRUE));
1157 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1158 $verbose_val, '', INTERNAL, VAR_ASIS)
1159 if (! vardef ($verbose_var, TRUE));
1162 # Above should not be needed in the general automake code.
1164 # verbose_flag (NAME)
1165 # -------------------
1166 # Contents of %VERBOSE%: variable to expand before rule command.
1167 sub verbose_flag ($)
1170 return '$(' . verbose_var ($name) . ')';
1173 sub verbose_nodep_flag ($)
1176 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1181 # Contents of %SILENT%: variable to expand to '@' when silent.
1184 return verbose_flag ('at');
1187 # define_verbose_tagvar (NAME)
1188 # ----------------------------
1189 # Engage the needed silent rules machinery for tag NAME.
1190 sub define_verbose_tagvar ($)
1193 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1196 # define_verbose_texinfo
1197 # ----------------------
1198 # Engage the needed silent rules machinery for assorted texinfo commands.
1199 sub define_verbose_texinfo ()
1201 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1202 foreach my $tag (@tagvars)
1204 define_verbose_tagvar($tag);
1206 define_verbose_var('texinfo', '-q');
1207 define_verbose_var('texidevnull', '> /dev/null');
1210 # define_verbose_libtool
1211 # ----------------------
1212 # Engage the needed silent rules machinery for 'libtool --silent'.
1213 sub define_verbose_libtool ()
1215 define_verbose_var ('lt', '--silent');
1216 return verbose_flag ('lt');
1219 sub handle_silent ()
1221 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1222 # used in make recipes to determine whether we are being run in
1223 # silent mode or not. The choice of the name derives from the LISP
1224 # convention of appending the letter 'P' to denote a predicate (see
1225 # also "the '-P' convention" in the Jargon File); we do so for lack
1226 # of a better convention.
1227 define_verbose_var ('P', 'false', ':');
1228 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1229 define_verbose_tagvar ('GEN');
1230 define_verbose_var ('at', '@');
1234 ################################################################
1237 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1240 my $var = var ('AUTOMAKE_OPTIONS');
1243 if ($var->has_conditional_contents)
1245 msg_var ('unsupported', $var,
1246 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1248 my @options = map { { option => $_->[1], where => $_->[0] } }
1249 $var->value_as_list_recursive (cond_filter => TRUE,
1251 return 1 if process_option_list (@options);
1254 if ($strictness == GNITS)
1256 set_option ('readme-alpha', INTERNAL);
1257 set_option ('std-options', INTERNAL);
1258 set_option ('check-news', INTERNAL);
1264 # shadow_unconditionally ($varname, $where)
1265 # -----------------------------------------
1266 # Return a $(variable) that contains all possible values
1267 # $varname can take.
1268 # If the VAR wasn't defined conditionally, return $(VAR).
1269 # Otherwise we create an am__VAR_DIST variable which contains
1270 # all possible values, and return $(am__VAR_DIST).
1271 sub shadow_unconditionally ($$)
1273 my ($varname, $where) = @_;
1274 my $var = var $varname;
1275 if ($var->has_conditional_contents)
1277 $varname = "am__${varname}_DIST";
1278 my @files = uniq ($var->value_as_list_recursive);
1279 define_pretty_variable ($varname, TRUE, $where, @files);
1281 return "\$($varname)"
1284 # check_user_variables (@LIST)
1285 # ----------------------------
1286 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1288 sub check_user_variables (@)
1290 my @dont_override = @_;
1291 foreach my $flag (@dont_override)
1293 my $var = var $flag;
1296 for my $cond ($var->conditions->conds)
1298 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1300 msg_cond_var ('gnu', $cond, $flag,
1301 "'$flag' is a user variable, "
1302 . "you should not override it;\n"
1303 . "use 'AM_$flag' instead");
1310 # Call finish function for each language that was used.
1311 sub handle_languages
1313 if (! option 'no-dependencies')
1315 # Include auto-dep code. Don't include it if DEP_FILES would
1317 if (keys %extension_seen && keys %dep_files)
1319 # Set location of depcomp.
1320 &define_variable ('depcomp',
1321 "\$(SHELL) $am_config_aux_dir/depcomp",
1323 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1325 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1327 my @deplist = sort keys %dep_files;
1328 # Generate each 'include' individually. Irix 6 make will
1329 # not properly include several files resulting from a
1330 # variable expansion; generating many separate includes
1332 $output_rules .= "\n";
1333 foreach my $iter (@deplist)
1335 $output_rules .= (subst ('AMDEP_TRUE')
1336 . subst ('am__include')
1338 . subst ('am__quote')
1340 . subst ('am__quote')
1344 # Compute the set of directories to remove in distclean-depend.
1345 my @depdirs = uniq (map { dirname ($_) } @deplist);
1346 $output_rules .= &file_contents ('depend',
1347 new Automake::Location,
1348 DEPDIRS => "@depdirs");
1353 &define_variable ('depcomp', '', INTERNAL);
1354 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1359 # Is the C linker needed?
1361 foreach my $ext (sort keys %extension_seen)
1363 next unless $extension_map{$ext};
1365 my $lang = $languages{$extension_map{$ext}};
1367 my $rule_file = $lang->rule_file || 'depend2';
1369 # Get information on $LANG.
1370 my $pfx = $lang->autodep;
1371 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1373 my ($AMDEP, $FASTDEP) =
1374 (option 'no-dependencies' || $lang->autodep eq 'no')
1375 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1377 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1378 my $verbose_nodep = ($AMDEP eq 'FALSE')
1379 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1380 my $silent = silent_flag ();
1382 my %transform = ('EXT' => $ext,
1386 'FASTDEP' => $FASTDEP,
1387 '-c' => $lang->compile_flag || '',
1388 # These are not used, but they need to be defined
1389 # so &transform do not complain.
1391 'DERIVED-EXT' => 'BUG',
1393 VERBOSE => $verbose,
1394 'VERBOSE-NODEP' => $verbose_nodep,
1398 # Generate the appropriate rules for this extension.
1399 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1400 || defined $lang->compile)
1402 # Some C compilers don't support -c -o. Use it only if really
1404 my $output_flag = $lang->output_flag || '';
1407 && $lang->name eq 'c'
1408 && option 'subdir-objects');
1410 # Compute a possible derived extension.
1411 # This is not used by depend2.am.
1412 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1414 # When we output an inference rule like '.c.o:' we
1415 # have two cases to consider: either subdir-objects
1416 # is used, or it is not.
1418 # In the latter case the rule is used to build objects
1419 # in the current directory, and dependencies always
1420 # go into './$(DEPDIR)/'. We can hard-code this value.
1422 # In the former case the rule can be used to build
1423 # objects in sub-directories too. Dependencies should
1424 # go into the appropriate sub-directories, e.g.,
1425 # 'sub/$(DEPDIR)/'. The value of this directory
1426 # needs to be computed on-the-fly.
1428 # DEPBASE holds the name of this directory, plus the
1429 # basename part of the object file (extensions Po, TPo,
1430 # Plo, TPlo will be added later as appropriate). It is
1431 # either hardcoded, or a shell variable ('$depbase') that
1432 # will be computed by the rule.
1434 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1436 file_contents ($rule_file,
1437 new Automake::Location,
1441 'DERIVED-EXT' => $der_ext,
1443 DEPBASE => $depbase,
1446 SOURCEFLAG => $sourceflags{$ext} || '',
1451 COMPILE => '$(' . $lang->compiler . ')',
1452 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1454 SUBDIROBJ => !! option 'subdir-objects');
1457 # Now include code for each specially handled object with this
1459 my %seen_files = ();
1460 foreach my $file (@{$lang_specific_files{$lang->name}})
1462 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1464 # We might see a given object twice, for instance if it is
1465 # used under different conditions.
1466 next if defined $seen_files{$obj};
1467 $seen_files{$obj} = 1;
1469 prog_error ("found " . $lang->name .
1470 " in handle_languages, but compiler not defined")
1471 unless defined $lang->compile;
1473 my $obj_compile = $lang->compile;
1475 # Rewrite each occurrence of 'AM_$flag' in the compile
1476 # rule into '${derived}_$flag' if it exists.
1477 for my $flag (@{$lang->flags})
1479 my $val = "${derived}_$flag";
1480 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1484 my $libtool_tag = '';
1485 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1487 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1490 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1491 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1493 my $ltverbose = define_verbose_libtool ();
1495 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1496 . "--mode=compile $obj_compile";
1498 # We _need_ '-o' for per object rules.
1499 my $output_flag = $lang->output_flag || '-o';
1501 my $depbase = dirname ($obj);
1505 unless $depbase eq '';
1506 $depbase .= '$(DEPDIR)/' . basename ($obj);
1509 file_contents ($rule_file,
1510 new Automake::Location,
1514 DEPBASE => $depbase,
1517 SOURCEFLAG => $sourceflags{$srcext} || '',
1518 # Use $myext and not '.o' here, in case
1519 # we are actually building a new source
1520 # file -- e.g. via yacc.
1521 OBJ => "$obj$myext",
1522 OBJOBJ => "$obj.obj",
1525 VERBOSE => $verbose,
1526 'VERBOSE-NODEP' => $verbose_nodep,
1528 COMPILE => $obj_compile,
1529 LTCOMPILE => $obj_ltcompile,
1534 # The rest of the loop is done once per language.
1535 next if defined $done{$lang};
1538 # Load the language dependent Makefile chunks.
1539 my %lang = map { uc ($_) => 0 } keys %languages;
1540 $lang{uc ($lang->name)} = 1;
1541 $output_rules .= file_contents ('lang-compile',
1542 new Automake::Location,
1545 # If the source to a program consists entirely of code from a
1546 # 'pure' language, for instance C++ or Fortran 77, then we
1547 # don't need the C compiler code. However if we run into
1548 # something unusual then we do generate the C code. There are
1549 # probably corner cases here that do not work properly.
1550 # People linking Java code to Fortran code deserve pain.
1551 $needs_c ||= ! $lang->pure;
1553 define_compiler_variable ($lang)
1554 if ($lang->compile);
1556 define_linker_variable ($lang)
1559 require_variables ("$am_file.am", $lang->Name . " source seen",
1560 TRUE, @{$lang->config_vars});
1562 # Call the finisher.
1565 # Flags listed in '->flags' are user variables (per GNU Standards),
1566 # they should not be overridden in the Makefile...
1567 my @dont_override = @{$lang->flags};
1568 # ... and so is LDFLAGS.
1569 push @dont_override, 'LDFLAGS' if $lang->link;
1571 check_user_variables @dont_override;
1574 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1575 # suffix rule was learned), don't bother with the C stuff. But if
1576 # anything else creeps in, then use it.
1578 if $need_link || suffix_rules_count > 1;
1582 &define_compiler_variable ($languages{'c'})
1583 unless defined $done{$languages{'c'}};
1584 define_linker_variable ($languages{'c'});
1589 # append_exeext { PREDICATE } $MACRO
1590 # ----------------------------------
1591 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1592 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1595 # This is typically used on all filenames of *_PROGRAMS, and filenames
1596 # of TESTS that are programs.
1597 sub append_exeext (&$)
1599 my ($pred, $macro) = @_;
1601 transform_variable_recursively
1602 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1604 my ($subvar, $val, $cond, $full_cond) = @_;
1605 # Append $(EXEEXT) unless the user did it already, or it's a
1608 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1614 # Check to make sure a source defined in LIBOBJS is not explicitly
1615 # mentioned. This is a separate function (as opposed to being inlined
1616 # in handle_source_transform) because it isn't always appropriate to
1618 sub check_libobjs_sources
1620 my ($one_file, $unxformed) = @_;
1622 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1623 'dist_EXTRA_', 'nodist_EXTRA_')
1626 my $varname = $prefix . $one_file . '_SOURCES';
1627 my $var = var ($varname);
1630 @files = $var->value_as_list_recursive;
1632 elsif ($prefix eq '')
1634 @files = ($unxformed . '.c');
1641 foreach my $file (@files)
1643 err_var ($prefix . $one_file . '_SOURCES',
1644 "automatically discovered file '$file' should not" .
1645 " be explicitly mentioned")
1646 if defined $libsources{$file};
1653 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1654 # -----------------------------------------------------------------------------
1655 # Does much of the actual work for handle_source_transform.
1657 # $VAR is the name of the variable that the source filenames come from
1658 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1659 # $DERIVED is the name of resulting executable or library
1660 # $OBJ is the object extension (e.g., '.lo')
1661 # $FILE the source file to transform
1662 # %TRANSFORM contains extras arguments to pass to file_contents
1663 # when producing explicit rules
1664 # Result is a list of the names of objects
1665 # %linkers_used will be updated with any linkers needed
1666 sub handle_single_transform ($$$$$%)
1668 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1669 my @files = ($_file);
1672 # Turn sources into objects. We use a while loop like this
1673 # because we might add to @files in the loop.
1674 while (scalar @files > 0)
1678 # Configure substitutions in _SOURCES variables are errors.
1681 my $parent_msg = '';
1682 $parent_msg = "\nand is referred to from '$topparent'"
1683 if $topparent ne $var->name;
1685 "'" . $var->name . "' includes configure substitution '$_'"
1686 . $parent_msg . ";\nconfigure " .
1687 "substitutions are not allowed in _SOURCES variables");
1691 # If the source file is in a subdirectory then the '.o' is put
1692 # into the current directory, unless the subdir-objects option
1695 # Split file name into base and extension.
1696 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1698 my $directory = $1 || '';
1702 # We must generate a rule for the object if it requires its own flags.
1704 my ($linker, $object);
1706 # This records whether we've seen a derived source file (e.g.
1708 my $derived_source = 0;
1710 # This holds the 'aggregate context' of the file we are
1711 # currently examining. If the file is compiled with
1712 # per-object flags, then it will be the name of the object.
1713 # Otherwise it will be 'AM'. This is used by the target hook
1714 # language function.
1715 my $aggregate = 'AM';
1717 $extension = &derive_suffix ($extension, $obj);
1719 if ($extension_map{$extension} &&
1720 ($lang = $languages{$extension_map{$extension}}))
1722 # Found the language, so see what it says.
1723 &saw_extension ($extension);
1725 # Do we have per-executable flags for this executable?
1726 my $have_per_exec_flags = 0;
1727 my @peflags = @{$lang->flags};
1728 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1729 foreach my $flag (@peflags)
1731 if (set_seen ("${derived}_$flag"))
1733 $have_per_exec_flags = 1;
1738 # Note: computed subr call. The language rewrite function
1739 # should return one of the LANG_* constants. It could
1740 # also return a list whose first value is such a constant
1741 # and whose second value is a new source extension which
1742 # should be applied. This means this particular language
1743 # generates another source file which we must then process
1745 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1746 my ($r, $source_extension)
1747 = &$subr ($directory, $base, $extension,
1748 $obj, $have_per_exec_flags, $var);
1749 # Skip this entry if we were asked not to process it.
1750 next if $r == LANG_IGNORE;
1752 # Now extract linker and other info.
1753 $linker = $lang->linker;
1756 if (defined $source_extension)
1758 $this_obj_ext = $source_extension;
1759 $derived_source = 1;
1763 $this_obj_ext = $obj;
1765 $object = $base . $this_obj_ext;
1767 if ($have_per_exec_flags)
1769 # We have a per-executable flag in effect for this
1770 # object. In this case we rewrite the object's
1771 # name to ensure it is unique.
1773 # We choose the name 'DERIVED_OBJECT' to ensure
1774 # (1) uniqueness, and (2) continuity between
1775 # invocations. However, this will result in a
1776 # name that is too long for losing systems, in
1777 # some situations. So we provide _SHORTNAME to
1780 my $dname = $derived;
1781 my $var = var ($derived . '_SHORTNAME');
1784 # FIXME: should use the same Condition as
1785 # the _SOURCES variable. But this is really
1786 # silly overkill -- nobody should have
1787 # conditional shortnames.
1788 $dname = $var->variable_value;
1790 $object = $dname . '-' . $object;
1792 prog_error ($lang->name . " flags defined without compiler")
1793 if ! defined $lang->compile;
1798 # If rewrite said it was ok, put the object into a
1800 if ($r == LANG_SUBDIR && $directory ne '')
1802 $object = $directory . '/' . $object;
1805 # If the object file has been renamed (because per-target
1806 # flags are used) we cannot compile the file with an
1807 # inference rule: we need an explicit rule.
1809 # If the source is in a subdirectory and the object is in
1810 # the current directory, we also need an explicit rule.
1812 # If both source and object files are in a subdirectory
1813 # (this happens when the subdir-objects option is used),
1814 # then the inference will work.
1816 # The latter case deserves a historical note. When the
1817 # subdir-objects option was added on 1999-04-11 it was
1818 # thought that inferences rules would work for
1819 # subdirectory objects too. Later, on 1999-11-22,
1820 # automake was changed to output explicit rules even for
1821 # subdir-objects. Nobody remembers why, but this occurred
1822 # soon after the merge of the user-dep-gen-branch so it
1823 # might be related. In late 2003 people complained about
1824 # the size of the generated Makefile.ins (libgcj, with
1825 # 2200+ subdir objects was reported to have a 9MB
1826 # Makefile), so we now rely on inference rules again.
1827 # Maybe we'll run across the same issue as in the past,
1828 # but at least this time we can document it. However since
1829 # dependency tracking has evolved it is possible that
1830 # our old problem no longer exists.
1831 # Using inference rules for subdir-objects has been tested
1832 # with GNU make, Solaris make, Ultrix make, BSD make,
1833 # HP-UX make, and OSF1 make successfully.
1835 || ($directory ne '' && ! option 'subdir-objects')
1836 # We must also use specific rules for a nodist_ source
1837 # if its language requests it.
1838 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1840 my $obj_sans_ext = substr ($object, 0,
1841 - length ($this_obj_ext));
1843 if ($directory ne '')
1845 $full_ansi = $directory . '/' . $base . $extension;
1849 $full_ansi = $base . $extension;
1852 my @specifics = ($full_ansi, $obj_sans_ext,
1853 # Only use $this_obj_ext in the derived
1854 # source case because in the other case we
1855 # *don't* want $(OBJEXT) to appear here.
1856 ($derived_source ? $this_obj_ext : '.o'),
1859 # If we renamed the object then we want to use the
1860 # per-executable flag name. But if this is simply a
1861 # subdir build then we still want to use the AM_ flag
1865 unshift @specifics, $derived;
1866 $aggregate = $derived;
1870 unshift @specifics, 'AM';
1873 # Each item on this list is a reference to a list consisting
1874 # of four values followed by additional transform flags for
1875 # file_contents. The four values are the derived flag prefix
1876 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1877 # source file, the base name of the output file, and
1878 # the extension for the object file.
1879 push (@{$lang_specific_files{$lang->name}},
1880 [@specifics, %transform]);
1883 elsif ($extension eq $obj)
1885 # This is probably the result of a direct suffix rule.
1886 # In this case we just accept the rewrite.
1887 $object = "$base$extension";
1888 $object = "$directory/$object" if $directory ne '';
1893 # No error message here. Used to have one, but it was
1895 # FIXME: we could potentially do more processing here,
1896 # perhaps treating the new extension as though it were a
1897 # new source extension (as above). This would require
1898 # more restructuring than is appropriate right now.
1902 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1903 if (defined $object_map{$object}
1904 && $object_map{$object} ne $full);
1906 my $comp_val = (($object =~ /\.lo$/)
1907 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1908 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1909 if (defined $object_compilation_map{$comp_obj}
1910 && $object_compilation_map{$comp_obj} != 0
1911 # Only see the error once.
1912 && ($object_compilation_map{$comp_obj}
1913 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1914 && $object_compilation_map{$comp_obj} != $comp_val)
1916 err_am "object '$comp_obj' created both with libtool and without";
1918 $object_compilation_map{$comp_obj} |= $comp_val;
1922 # Let the language do some special magic if required.
1923 $lang->target_hook ($aggregate, $object, $full, %transform);
1926 if ($derived_source)
1928 prog_error ($lang->name . " has automatic dependency tracking")
1929 if $lang->autodep ne 'no';
1930 # Make sure this new source file is handled next. That will
1931 # make it appear to be at the right place in the list.
1932 unshift (@files, $object);
1933 # Distribute derived sources unless the source they are
1934 # derived from is not.
1935 &push_dist_common ($object)
1936 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1940 $linkers_used{$linker} = 1;
1942 push (@result, $object);
1944 if (! defined $object_map{$object})
1947 $object_map{$object} = $full;
1949 # If resulting object is in subdir, we need to make
1950 # sure the subdir exists at build time.
1951 if ($object =~ /\//)
1953 # FIXME: check that $DIRECTORY is somewhere in the
1956 # For Java, the way we're handling it right now, a
1957 # '..' component doesn't make sense.
1958 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1960 err_am "'$full' should not contain a '..' component";
1963 # Make sure *all* objects files in the subdirectory are
1964 # removed by "make mostlyclean". Not only this is more
1965 # efficient than listing the object files to be removed
1966 # individually (which would cause an 'rm' invocation for
1967 # each of them -- very inefficient, see bug#10697), it
1968 # would also leave stale object files in the subdirectory
1969 # whenever a source file there is removed or renamed.
1970 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1971 if ($object =~ /\.lo$/)
1973 # If we have a libtool object, then we also must remove
1974 # any '.lo' objects in its same subdirectory.
1975 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1976 # Remember to cleanup .libs/ in this directory.
1977 $libtool_clean_directories{$directory} = 1;
1980 push (@dep_list, require_build_directory ($directory));
1982 # If we're generating dependencies, we also want
1983 # to make sure that the appropriate subdir of the
1984 # .deps directory is created.
1986 require_build_directory ($directory . '/$(DEPDIR)'))
1987 unless option 'no-dependencies';
1990 &pretty_print_rule ($object . ':', "\t", @dep_list)
1991 if scalar @dep_list > 0;
1994 # Transform .o or $o file into .P file (for automatic
1996 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1997 # might fail over them in an include statement.
1998 # Leading double slashes may be special, as per Posix, so deal
1999 # with them carefully.
2000 if ($lang && $lang->autodep ne 'no')
2002 my $depfile = $object;
2003 $depfile =~ s/\.([^.]*)$/.P$1/;
2004 $depfile =~ s/\$\(OBJEXT\)$/o/;
2005 my $maybe_extra_leading_slash = '';
2006 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2007 $depfile =~ s,/+,/,g;
2008 my $basename = basename ($depfile);
2009 # This might make $dirname empty, but we account for that below.
2010 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2011 $dirname = $maybe_extra_leading_slash . $dirname;
2012 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2021 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2022 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2023 # ---------------------------------------------------------------------------
2024 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2027 # $VAR is the name of the _SOURCES variable
2028 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2029 # it will be generated and returned).
2030 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2031 # work done to determine the linker will be).
2032 # $ONE_FILE is the canonical (transformed) name of object to build
2033 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2034 # $TOPPARENT is the _SOURCES variable being processed.
2035 # $WHERE context into which this definition is done
2036 # %TRANSFORM extra arguments to pass to file_contents when producing
2039 # Result is a pair ($LINKER, $OBJVAR):
2040 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2041 sub define_objects_from_sources ($$$$$$$%)
2043 my ($var, $objvar, $nodefine, $one_file,
2044 $obj, $topparent, $where, %transform) = @_;
2046 my $needlinker = "";
2048 transform_variable_recursively
2049 ($var, $objvar, 'am__objects', $nodefine, $where,
2050 # The transform code to run on each filename.
2052 my ($subvar, $val, $cond, $full_cond) = @_;
2053 my @trans = handle_single_transform ($subvar, $topparent,
2054 $one_file, $obj, $val,
2056 $needlinker = "true" if @trans;
2064 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2065 # -----------------------------------------------------------------------------
2066 # Handle SOURCE->OBJECT transform for one program or library.
2068 # canonical (transformed) name of target to build
2069 # actual target of object to build
2070 # object extension (i.e., either '.o' or '$o')
2071 # location of the source variable
2072 # extra arguments to pass to file_contents when producing rules
2073 # Return the name of the linker variable that must be used.
2074 # Empty return means just use 'LINK'.
2075 sub handle_source_transform ($$$$%)
2077 # one_file is canonical name. unxformed is given name. obj is
2079 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2083 # No point in continuing if _OBJECTS is defined.
2084 return if reject_var ($one_file . '_OBJECTS',
2085 $one_file . '_OBJECTS should not be defined');
2090 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2091 'dist_EXTRA_', 'nodist_EXTRA_')
2093 my $varname = $prefix . $one_file . "_SOURCES";
2094 my $var = var $varname;
2097 # We are going to define _OBJECTS variables using the prefix.
2098 # Then we glom them all together. So we can't use the null
2099 # prefix here as we need it later.
2100 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2102 # Keep track of which prefixes we saw.
2103 $used_pfx{$xpfx} = 1
2104 unless $prefix =~ /EXTRA_/;
2106 push @sources, "\$($varname)";
2107 push @dist_sources, shadow_unconditionally ($varname, $where)
2108 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2111 define_objects_from_sources ($varname,
2112 $xpfx . $one_file . '_OBJECTS',
2113 $prefix =~ /EXTRA_/,
2114 $one_file, $obj, $varname, $where,
2115 DIST_SOURCE => ($prefix !~ /^nodist_/),
2120 $linker ||= &resolve_linker (%linkers_used);
2123 my @keys = sort keys %used_pfx;
2124 if (scalar @keys == 0)
2126 # The default source for libfoo.la is libfoo.c, but for
2127 # backward compatibility we first look at libfoo_la.c,
2128 # if no default source suffix is given.
2129 my $old_default_source = "$one_file.c";
2130 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2131 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2132 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2133 if $default_source_ext =~ /[\t ]/;
2134 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2135 if ($old_default_source ne $default_source
2137 && (rule $old_default_source
2138 || rule '$(srcdir)/' . $old_default_source
2139 || rule '${srcdir}/' . $old_default_source
2140 || -f $old_default_source))
2142 my $loc = $where->clone;
2144 msg ('obsolete', $loc,
2145 "the default source for '$unxformed' has been changed "
2146 . "to '$default_source'.\n(Using '$old_default_source' for "
2147 . "backward compatibility.)");
2148 $default_source = $old_default_source;
2150 # If a rule exists to build this source with a $(srcdir)
2151 # prefix, use that prefix in our variables too. This is for
2152 # the sake of BSD Make.
2153 if (rule '$(srcdir)/' . $default_source
2154 || rule '${srcdir}/' . $default_source)
2156 $default_source = '$(srcdir)/' . $default_source;
2159 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2160 push (@sources, $default_source);
2161 push (@dist_sources, $default_source);
2165 handle_single_transform ($one_file . '_SOURCES',
2166 $one_file . '_SOURCES',
2168 $default_source, %transform);
2169 $linker ||= &resolve_linker (%linkers_used);
2170 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2174 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2175 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2178 # If we want to use 'LINK' we must make sure it is defined.
2188 # handle_lib_objects ($XNAME, $VAR)
2189 # ---------------------------------
2190 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2191 # Also, generate _DEPENDENCIES variable if appropriate.
2193 # transformed name of object being built, or empty string if no object
2194 # name of _LDADD/_LIBADD-type variable to examine
2195 # Returns 1 if LIBOBJS seen, 0 otherwise.
2196 sub handle_lib_objects
2198 my ($xname, $varname) = @_;
2200 my $var = var ($varname);
2201 prog_error "'$varname' undefined"
2203 prog_error "unexpected variable name '$varname'"
2204 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2205 my $prefix = $1 || 'AM_';
2207 my $seen_libobjs = 0;
2210 transform_variable_recursively
2211 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2213 # Transformation function, run on each filename.
2215 my ($subvar, $val, $cond, $full_cond) = @_;
2219 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2220 if ($val !~ /^-[lL]/ &&
2221 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2222 # for Libtool libraries or programs. (Actually we are a bit
2223 # lax here since this code also applies to non-libtool
2224 # libraries or programs, for which -dlopen and -dlopreopen
2225 # are pure nonsense. Diagnosing this doesn't seem very
2226 # important: the developer will quickly get complaints from
2228 $val !~ /^-dl(?:pre)?open$/ &&
2229 # Only get this error once.
2233 # FIXME: should display a stack of nested variables
2234 # as context when $var != $subvar.
2235 err_var ($var, "linker flags such as '$val' belong in "
2236 . "'${prefix}LDFLAGS'");
2240 elsif ($val !~ /^\@.*\@$/)
2242 # Assume we have a file of some sort, and output it into the
2243 # dependency variable. Autoconf substitutions are not output;
2244 # rarely is a new dependency substituted into e.g. foo_LDADD
2245 # -- but bad things (e.g. -lX11) are routinely substituted.
2246 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2247 # and handled specially below.
2250 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2252 handle_LIBOBJS ($subvar, $cond, $1);
2256 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2258 handle_ALLOCA ($subvar, $cond, $1);
2267 return $seen_libobjs;
2270 # handle_LIBOBJS_or_ALLOCA ($VAR)
2271 # -------------------------------
2272 # Definitions common to LIBOBJS and ALLOCA.
2273 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2274 sub handle_LIBOBJS_or_ALLOCA ($)
2280 # If LIBOBJS files must be built in another directory we have
2281 # to define LIBOBJDIR and ensure the files get cleaned.
2282 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2283 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2284 if ($config_libobj_dir
2285 && $relative_dir ne $config_libobj_dir)
2287 if (option 'subdir-objects')
2289 # In the top-level Makefile we do not use $(top_builddir), because
2290 # we are already there, and since the targets are built without
2291 # a $(top_builddir), it helps BSD Make to match them with
2293 $dir = "$config_libobj_dir/"
2294 if $config_libobj_dir ne '.';
2295 $dir = backname ($relative_dir) . "/$dir"
2296 if $relative_dir ne '.';
2297 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2298 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2299 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2300 # be created by libtool as a side-effect of creating LTLIBOBJS).
2301 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2305 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2306 . " 'subdir-objects' is not set");
2313 sub handle_LIBOBJS ($$$)
2315 my ($var, $cond, $lt) = @_;
2316 my $myobjext = $lt ? 'lo' : 'o';
2319 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2320 if ! keys %libsources;
2322 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2324 foreach my $iter (keys %libsources)
2326 if ($iter =~ /\.[cly]$/)
2328 &saw_extension ($&);
2329 &saw_extension ('.c');
2332 if ($iter =~ /\.h$/)
2334 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2336 elsif ($iter ne 'alloca.c')
2338 my $rewrite = $iter;
2339 $rewrite =~ s/\.c$/.P$myobjext/;
2340 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2341 $rewrite = "^" . quotemeta ($iter) . "\$";
2342 # Only require the file if it is not a built source.
2343 my $bs = var ('BUILT_SOURCES');
2344 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2346 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2352 sub handle_ALLOCA ($$$)
2354 my ($var, $cond, $lt) = @_;
2355 my $myobjext = $lt ? 'lo' : 'o';
2357 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2359 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2360 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2361 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2362 &saw_extension ('.c');
2365 # Canonicalize the input parameter
2369 $string =~ tr/A-Za-z0-9_\@/_/c;
2373 # Canonicalize a name, and check to make sure the non-canonical name
2374 # is never used. Returns canonical name. Arguments are name and a
2375 # list of suffixes to check for.
2376 sub check_canonical_spelling
2378 my ($name, @suffixes) = @_;
2380 my $xname = &canonicalize ($name);
2381 if ($xname ne $name)
2383 foreach my $xt (@suffixes)
2385 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2395 # Set up the compile suite.
2396 sub handle_compile ()
2398 return if ! $must_handle_compiled_objects;
2401 my $default_includes = '';
2402 if (! option 'nostdinc')
2404 my @incs = ('-I.', subst ('am__isrc'));
2406 my $var = var 'CONFIG_HEADER';
2409 foreach my $hdr (split (' ', $var->variable_value))
2411 push @incs, '-I' . dirname ($hdr);
2414 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2415 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2416 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2417 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2418 # to just put @am__isrc@ right after '-I.', without a space.
2419 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2422 my (@mostly_rms, @dist_rms);
2423 foreach my $item (sort keys %compile_clean_files)
2425 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2427 push (@mostly_rms, "\t-rm -f $item");
2429 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2431 push (@dist_rms, "\t-rm -f $item");
2435 prog_error 'invalid entry in %compile_clean_files';
2439 my ($coms, $vars, $rules) =
2440 &file_contents_internal (1, "$libdir/am/compile.am",
2441 new Automake::Location,
2442 ('DEFAULT_INCLUDES' => $default_includes,
2443 'MOSTLYRMS' => join ("\n", @mostly_rms),
2444 'DISTRMS' => join ("\n", @dist_rms)));
2445 $output_vars .= $vars;
2446 $output_rules .= "$coms$rules";
2451 # Handle libtool rules.
2454 return unless var ('LIBTOOL');
2456 # Libtool requires some files, but only at top level.
2457 # (Starting with Libtool 2.0 we do not have to bother. These
2458 # requirements are done with AC_REQUIRE_AUX_FILE.)
2459 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2460 if $relative_dir eq '.' && ! $libtool_new_api;
2463 foreach my $item (sort keys %libtool_clean_directories)
2465 my $dir = ($item eq '.') ? '' : "$item/";
2466 # .libs is for Unix, _libs for DOS.
2467 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2470 check_user_variables 'LIBTOOLFLAGS';
2472 # Output the libtool compilation rules.
2473 $output_rules .= &file_contents ('libtool',
2474 new Automake::Location,
2475 LTRMS => join ("\n", @libtool_rms));
2478 # handle_programs ()
2479 # ------------------
2480 # Handle C programs.
2483 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2484 'bin', 'sbin', 'libexec', 'pkglibexec',
2486 return if ! @proglist;
2487 $must_handle_compiled_objects = 1;
2489 my $seen_global_libobjs =
2490 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2492 foreach my $pair (@proglist)
2494 my ($where, $one_file) = @$pair;
2496 my $seen_libobjs = 0;
2497 my $obj = '.$(OBJEXT)';
2499 $known_programs{$one_file} = $where;
2501 # Canonicalize names and check for misspellings.
2502 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2503 '_SOURCES', '_OBJECTS',
2506 $where->push_context ("while processing program '$one_file'");
2507 $where->set (INTERNAL->get);
2509 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2510 NONLIBTOOL => 1, LIBTOOL => 0);
2512 if (var ($xname . "_LDADD"))
2514 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2518 # User didn't define prog_LDADD override. So do it.
2519 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2521 # This does a bit too much work. But we need it to
2522 # generate _DEPENDENCIES when appropriate.
2525 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2529 reject_var ($xname . '_LIBADD',
2530 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2532 set_seen ($xname . '_DEPENDENCIES');
2533 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2534 set_seen ($xname . '_LDFLAGS');
2536 # Determine program to use for link.
2537 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2538 $vlink = verbose_flag ($vlink || 'GEN');
2540 # If the resulting program lies into a subdirectory,
2541 # make sure this directory will exist.
2542 my $dirstamp = require_build_directory_maybe ($one_file);
2544 $libtool_clean_directories{dirname ($one_file)} = 1;
2546 $output_rules .= &file_contents ('program',
2548 PROGRAM => $one_file,
2552 DIRSTAMP => $dirstamp,
2553 EXEEXT => '$(EXEEXT)');
2555 if ($seen_libobjs || $seen_global_libobjs)
2557 if (var ($xname . '_LDADD'))
2559 &check_libobjs_sources ($xname, $xname . '_LDADD');
2561 elsif (var ('LDADD'))
2563 &check_libobjs_sources ($xname, 'LDADD');
2570 # handle_libraries ()
2571 # -------------------
2573 sub handle_libraries
2575 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2576 'lib', 'pkglib', 'noinst', 'check');
2577 return if ! @liblist;
2578 $must_handle_compiled_objects = 1;
2580 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2585 my $var = rvar ($prefix[0] . '_LIBRARIES');
2586 $var->requires_variables ('library used', 'RANLIB');
2589 &define_variable ('AR', 'ar', INTERNAL);
2590 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2591 &define_verbose_tagvar ('AR');
2593 foreach my $pair (@liblist)
2595 my ($where, $onelib) = @$pair;
2597 my $seen_libobjs = 0;
2598 # Check that the library fits the standard naming convention.
2599 my $bn = basename ($onelib);
2600 if ($bn !~ /^lib.*\.a$/)
2602 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2603 my $suggestion = dirname ($onelib) . "/$bn";
2604 $suggestion =~ s|^\./||g;
2605 msg ('error-gnu/warn', $where,
2606 "'$onelib' is not a standard library name\n"
2607 . "did you mean '$suggestion'?")
2610 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2612 $where->push_context ("while processing library '$onelib'");
2613 $where->set (INTERNAL->get);
2615 my $obj = '.$(OBJEXT)';
2617 # Canonicalize names and check for misspellings.
2618 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2619 '_OBJECTS', '_DEPENDENCIES',
2622 if (! var ($xlib . '_AR'))
2624 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2627 # Generate support for conditional object inclusion in
2629 if (var ($xlib . '_LIBADD'))
2631 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2638 &define_variable ($xlib . "_LIBADD", '', $where);
2641 reject_var ($xlib . '_LDADD',
2642 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2644 # Make sure we at look at this.
2645 set_seen ($xlib . '_DEPENDENCIES');
2646 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2648 &handle_source_transform ($xlib, $onelib, $obj, $where,
2649 NONLIBTOOL => 1, LIBTOOL => 0);
2651 # If the resulting library lies into a subdirectory,
2652 # make sure this directory will exist.
2653 my $dirstamp = require_build_directory_maybe ($onelib);
2654 my $verbose = verbose_flag ('AR');
2655 my $silent = silent_flag ();
2657 $output_rules .= &file_contents ('library',
2659 VERBOSE => $verbose,
2663 DIRSTAMP => $dirstamp);
2667 if (var ($xlib . '_LIBADD'))
2669 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2675 msg ('extra-portability', $where,
2676 "'$onelib': linking libraries using a non-POSIX\n"
2677 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2683 # handle_ltlibraries ()
2684 # ---------------------
2685 # Handle shared libraries.
2686 sub handle_ltlibraries
2688 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2689 'noinst', 'lib', 'pkglib', 'check');
2690 return if ! @liblist;
2691 $must_handle_compiled_objects = 1;
2693 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2698 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2699 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2703 my %instsubdirs = ();
2705 my %liblocations = (); # Location (in Makefile.am) of each library.
2707 foreach my $key (@prefix)
2709 # Get the installation directory of each library.
2711 my $strip_subdir = 1;
2712 if ($dir =~ /^nobase_/)
2714 $dir =~ s/^nobase_//;
2717 my $var = rvar ($key . '_LTLIBRARIES');
2719 # We reject libraries which are installed in several places
2720 # in the same condition, because we can only specify one
2722 $var->traverse_recursively
2725 my ($var, $val, $cond, $full_cond) = @_;
2726 my $hcond = $full_cond->human;
2727 my $where = $var->rdef ($cond)->location;
2729 $ldir = '/' . dirname ($val)
2730 if (!$strip_subdir);
2731 # A library cannot be installed in different directories
2732 # in overlapping conditions.
2733 if (exists $instconds{$val})
2736 $instconds{$val}->ambiguous_p ($val, $full_cond);
2740 error ($where, $msg, partial => 1);
2741 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2742 $dirtxt = "built for '$dir'"
2743 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2745 $full_cond->true ? "" : " in condition $hcond";
2747 error ($where, "'$val' should be $dirtxt$dircond ...",
2750 my $hacond = $acond->human;
2751 my $adir = $instdirs{$val}{$acond};
2752 my $adirtxt = "installed in '$adir'";
2753 $adirtxt = "built for '$adir'"
2754 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2755 || $adir eq 'check');
2756 my $adircond = $acond->true ? "" : " in condition $hacond";
2758 my $onlyone = ($dir ne $adir) ?
2759 ("\nLibtool libraries can be built for only one "
2760 . "destination") : "";
2762 error ($liblocations{$val}{$acond},
2763 "... and should also be $adirtxt$adircond.$onlyone");
2769 $instconds{$val} = new Automake::DisjConditions;
2771 $instdirs{$val}{$full_cond} = $dir;
2772 $instsubdirs{$val}{$full_cond} = $ldir;
2773 $liblocations{$val}{$full_cond} = $where;
2774 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2780 skip_ac_subst => 1);
2783 foreach my $pair (@liblist)
2785 my ($where, $onelib) = @$pair;
2787 my $seen_libobjs = 0;
2790 # Canonicalize names and check for misspellings.
2791 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2792 '_SOURCES', '_OBJECTS',
2795 # Check that the library fits the standard naming convention.
2796 my $libname_rx = '^lib.*\.la';
2797 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2798 my $ldvar2 = var ('LDFLAGS');
2799 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2800 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2802 # Relax name checking for libtool modules.
2803 $libname_rx = '\.la';
2806 my $bn = basename ($onelib);
2807 if ($bn !~ /$libname_rx$/)
2809 my $type = 'library';
2810 if ($libname_rx eq '\.la')
2812 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2817 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2819 my $suggestion = dirname ($onelib) . "/$bn";
2820 $suggestion =~ s|^\./||g;
2821 msg ('error-gnu/warn', $where,
2822 "'$onelib' is not a standard libtool $type name\n"
2823 . "did you mean '$suggestion'?")
2826 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2828 $where->push_context ("while processing Libtool library '$onelib'");
2829 $where->set (INTERNAL->get);
2831 # Make sure we look at these.
2832 set_seen ($xlib . '_LDFLAGS');
2833 set_seen ($xlib . '_DEPENDENCIES');
2834 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2836 # Generate support for conditional object inclusion in
2838 if (var ($xlib . '_LIBADD'))
2840 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2847 &define_variable ($xlib . "_LIBADD", '', $where);
2850 reject_var ("${xlib}_LDADD",
2851 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2854 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2855 NONLIBTOOL => 0, LIBTOOL => 1);
2857 # Determine program to use for link.
2858 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2859 $vlink = verbose_flag ($vlink || 'GEN');
2861 my $rpathvar = "am_${xlib}_rpath";
2862 my $rpath = "\$($rpathvar)";
2863 foreach my $rcond ($instconds{$onelib}->conds)
2866 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2867 || $instdirs{$onelib}{$rcond} eq 'noinst'
2868 || $instdirs{$onelib}{$rcond} eq 'check')
2870 # It's an EXTRA_ library, so we can't specify -rpath,
2871 # because we don't know where the library will end up.
2872 # The user probably knows, but generally speaking automake
2873 # doesn't -- and in fact configure could decide
2874 # dynamically between two different locations.
2879 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2880 $val .= $instsubdirs{$onelib}{$rcond}
2881 if defined $instsubdirs{$onelib}{$rcond};
2885 # If $rcond is true there is only one condition and
2886 # there is no point defining an helper variable.
2891 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2895 # If the resulting library lies into a subdirectory,
2896 # make sure this directory will exist.
2897 my $dirstamp = require_build_directory_maybe ($onelib);
2899 # Remember to cleanup .libs/ in this directory.
2900 my $dirname = dirname $onelib;
2901 $libtool_clean_directories{$dirname} = 1;
2903 $output_rules .= &file_contents ('ltlibrary',
2905 LTLIBRARY => $onelib,
2906 XLTLIBRARY => $xlib,
2910 DIRSTAMP => $dirstamp);
2913 if (var ($xlib . '_LIBADD'))
2915 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2921 msg ('extra-portability', $where,
2922 "'$onelib': linking libtool libraries using a non-POSIX\n"
2923 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2928 # See if any _SOURCES variable were misspelled.
2931 # It is ok if the user sets this particular variable.
2932 set_seen 'AM_LDFLAGS';
2934 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2936 foreach my $var (variables $primary)
2938 my $varname = $var->name;
2939 # A configure variable is always legitimate.
2940 next if exists $configure_vars{$varname};
2942 for my $cond ($var->conditions->conds)
2944 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2945 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2946 . " program or\nlibrary has '$1' as canonical name"
2947 . " (possible typo)")
2948 unless $var->rdef ($cond)->seen;
2958 # NOTE we no longer automatically clean SCRIPTS, because it is
2959 # useful to sometimes distribute scripts verbatim. This happens
2960 # e.g. in Automake itself.
2961 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2962 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2969 ## ------------------------ ##
2970 ## Handling Texinfo files. ##
2971 ## ------------------------ ##
2973 # ($OUTFILE, $VFILE)
2974 # &scan_texinfo_file ($FILENAME)
2975 # ------------------------------
2976 # $OUTFILE - name of the info file produced by $FILENAME.
2977 # $VFILE - name of the version.texi file used (undef if none).
2978 sub scan_texinfo_file ($)
2980 my ($filename) = @_;
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*$/)
3013 err_am "'$filename' missing \@setfilename";
3017 my $infobase = basename ($filename);
3018 $infobase =~ s/\.te?xi(nfo)?$//;
3019 return ($outfile, $vfile);
3023 # ($DIRSTAMP, @CLEAN_FILES)
3024 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3025 # ------------------------------------------------------------------
3026 # SOURCE - the source Texinfo file
3027 # DEST - the destination Info file
3028 # INSRC - whether DEST should be built in the source tree
3029 # DEPENDENCIES - known dependencies
3030 sub output_texinfo_build_rules ($$$@)
3032 my ($source, $dest, $insrc, @deps) = @_;
3034 # Split 'a.texi' into 'a' and '.texi'.
3035 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3036 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3041 # We can output two kinds of rules: the "generic" rules use Make
3042 # suffix rules and are appropriate when $source and $dest do not lie
3043 # in a sub-directory; the "specific" rules are needed in the other
3046 # The former are output only once (this is not really apparent here,
3047 # but just remember that some logic deeper in Automake will not
3048 # output the same rule twice); while the later need to be output for
3049 # each Texinfo source.
3052 my $sdir = dirname $source;
3053 if ($sdir eq '.' && dirname ($dest) eq '.')
3056 $makeinfoflags = '-I $(srcdir)';
3061 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3064 # A directory can contain two kinds of info files: some built in the
3065 # source tree, and some built in the build tree. The rules are
3066 # different in each case. However we cannot output two different
3067 # set of generic rules. Because in-source builds are more usual, we
3068 # use generic rules in this case and fall back to "specific" rules
3069 # for build-dir builds. (It should not be a problem to invert this
3071 $generic = 0 unless $insrc;
3073 # We cannot use a suffix rule to build info files with an empty
3074 # extension. Otherwise we would output a single suffix inference
3075 # rule, with separate dependencies, as in
3079 # foo.info: foo.texi
3081 # which confuse Solaris make. (See the Autoconf manual for
3082 # details.) Therefore we use a specific rule in this case. This
3083 # applies to info files only (dvi and pdf files always have an
3085 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3087 # If the resulting file lie into a subdirectory,
3088 # make sure this directory will exist.
3089 my $dirstamp = require_build_directory_maybe ($dest);
3091 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3093 $output_rules .= file_contents ('texibuild',
3094 new Automake::Location,
3095 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3096 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3097 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3099 DEST_PREFIX => $dpfx,
3100 DEST_INFO_PREFIX => $dipfx,
3101 DEST_SUFFIX => $dsfx,
3102 DIRSTAMP => $dirstamp,
3103 GENERIC => $generic,
3104 GENERIC_INFO => $generic_info,
3106 MAKEINFOFLAGS => $makeinfoflags,
3107 SILENT => silent_flag(),
3110 SOURCE_INFO => ($generic_info
3112 SOURCE_REAL => $source,
3113 SOURCE_SUFFIX => $ssfx,
3114 TEXIQUIET => verbose_flag('texinfo'),
3115 TEXIDEVNULL => verbose_flag('texidevnull'),
3117 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3121 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3122 # handle_texinfo_helper ($info_texinfos)
3123 # --------------------------------------
3124 # Handle all Texinfo source; helper for handle_texinfo.
3125 sub handle_texinfo_helper ($)
3127 my ($info_texinfos) = @_;
3128 my (@infobase, @info_deps_list, @texi_deps);
3131 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3133 # Build a regex matching user-cleaned files.
3134 my $d = var 'DISTCLEANFILES';
3135 my $c = var 'CLEANFILES';
3137 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3138 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3139 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3140 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3143 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3145 my $infobase = $texi;
3146 $infobase =~ s/\.(txi|texinfo|texi)$//;
3148 if ($infobase eq $texi)
3150 # FIXME: report line number.
3151 err_am "texinfo file '$texi' has unrecognized extension";
3155 push @infobase, $infobase;
3157 # If 'version.texi' is referenced by input file, then include
3158 # automatic versioning capability.
3159 my ($out_file, $vtexi) =
3160 scan_texinfo_file ("$relative_dir/$texi")
3162 # Directory of auxiliary files and build by-products used by texi2dvi
3164 push @mostly_cleans, "$infobase.t2d";
3165 push @mostly_cleans, "$infobase.t2p";
3167 # If the Texinfo source is in a subdirectory, create the
3168 # resulting info in this subdirectory. If it is in the current
3169 # directory, try hard to not prefix "./" because it breaks the
3171 my $outdir = dirname ($texi) . '/';
3172 $outdir = "" if $outdir eq './';
3173 $out_file = $outdir . $out_file;
3175 # Until Automake 1.6.3, .info files were built in the
3176 # source tree. This was an obstacle to the support of
3177 # non-distributed .info files, and non-distributed .texi
3180 # * Non-distributed .texi files is important in some packages
3181 # where .texi files are built at make time, probably using
3182 # other binaries built in the package itself, maybe using
3183 # tools or information found on the build host. Because
3184 # these files are not distributed they are always rebuilt
3185 # at make time; they should therefore not lie in the source
3186 # directory. One plan was to support this using
3187 # nodist_info_TEXINFOS or something similar. (Doing this
3188 # requires some sanity checks. For instance Automake should
3190 # dist_info_TEXINFOS = foo.texi
3191 # nodist_foo_TEXINFOS = included.texi
3192 # because a distributed file should never depend on a
3193 # non-distributed file.)
3195 # * If .texi files are not distributed, then .info files should
3196 # not be distributed either. There are also cases where one
3197 # wants to distribute .texi files, but does not want to
3198 # distribute the .info files. For instance the Texinfo package
3199 # distributes the tool used to build these files; it would
3200 # be a waste of space to distribute them. It's not clear
3201 # which syntax we should use to indicate that .info files should
3202 # not be distributed. Akim Demaille suggested that eventually
3203 # we switch to a new syntax:
3204 # | Maybe we should take some inspiration from what's already
3205 # | done in the rest of Automake. Maybe there is too much
3206 # | syntactic sugar here, and you want
3207 # | nodist_INFO = bar.info
3208 # | dist_bar_info_SOURCES = bar.texi
3209 # | bar_texi_DEPENDENCIES = foo.texi
3210 # | with a bit of magic to have bar.info represent the whole
3211 # | bar*info set. That's a lot more verbose that the current
3212 # | situation, but it is # not new, hence the user has less
3215 # | But there is still too much room for meaningless specs:
3216 # | nodist_INFO = bar.info
3217 # | dist_bar_info_SOURCES = bar.texi
3218 # | dist_PS = bar.ps something-written-by-hand.ps
3219 # | nodist_bar_ps_SOURCES = bar.texi
3220 # | bar_texi_DEPENDENCIES = foo.texi
3221 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3223 # Back to the point, it should be clear that in order to support
3224 # non-distributed .info files, we need to build them in the
3225 # build tree, not in the source tree (non-distributed .texi
3226 # files are less of a problem, because we do not output build
3227 # rules for them). In Automake 1.7 .info build rules have been
3228 # largely cleaned up so that .info files get always build in the
3229 # build tree, even when distributed. The idea was that
3230 # (1) if during a VPATH build the .info file was found to be
3231 # absent or out-of-date (in the source tree or in the
3232 # build tree), Make would rebuild it in the build tree.
3233 # If an up-to-date source-tree of the .info file existed,
3234 # make would not rebuild it in the build tree.
3235 # (2) having two copies of .info files, one in the source tree
3236 # and one (newer) in the build tree is not a problem
3237 # because 'make dist' always pick files in the build tree
3239 # However it turned out the be a bad idea for several reasons:
3240 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3241 # like GNU Make on point (1) above. These implementations
3242 # of Make would always rebuild .info files in the build
3243 # tree, even if such files were up to date in the source
3244 # tree. Consequently, it was impossible to perform a VPATH
3245 # build of a package containing Texinfo files using these
3246 # Make implementations.
3247 # (Refer to the Autoconf Manual, section "Limitation of
3248 # Make", paragraph "VPATH", item "target lookup", for
3249 # an account of the differences between these
3251 # * The GNU Coding Standards require these files to be built
3252 # in the source-tree (when they are distributed, that is).
3253 # * Keeping a fresher copy of distributed files in the
3254 # build tree can be annoying during development because
3255 # - if the files is kept under CVS, you really want it
3256 # to be updated in the source tree
3257 # - it is confusing that 'make distclean' does not erase
3258 # all files in the build tree.
3260 # Consequently, starting with Automake 1.8, .info files are
3261 # built in the source tree again. Because we still plan to
3262 # support non-distributed .info files at some point, we
3263 # have a single variable ($INSRC) that controls whether
3264 # the current .info file must be built in the source tree
3265 # or in the build tree. Actually this variable is switched
3266 # off for .info files that appear to be cleaned; this is
3267 # for backward compatibility with package such as Texinfo,
3268 # which do things like
3269 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3270 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3271 # # Do not create info files for distribution.
3273 # in order not to distribute .info files.
3274 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3276 my $soutdir = '$(srcdir)/' . $outdir;
3277 $outdir = $soutdir if $insrc;
3279 # If user specified file_TEXINFOS, then use that as explicit
3282 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3284 my $canonical = canonicalize ($infobase);
3285 if (var ($canonical . "_TEXINFOS"))
3287 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3288 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3291 my ($dirstamp, @cfiles) =
3292 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3293 push (@texi_cleans, @cfiles);
3295 push (@info_deps_list, $out_file);
3297 # If a vers*.texi file is needed, emit the rule.
3300 err_am ("'$vtexi', included in '$texi', "
3301 . "also included in '$versions{$vtexi}'")
3302 if defined $versions{$vtexi};
3303 $versions{$vtexi} = $texi;
3305 # We number the stamp-vti files. This is doable since the
3306 # actual names don't matter much. We only number starting
3307 # with the second one, so that the common case looks nice.
3308 my $vti = ($done ? $done : 'vti');
3311 # This is ugly, but it is our historical practice.
3312 if ($config_aux_dir_set_in_configure_ac)
3314 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3319 require_file_with_macro (TRUE, 'info_TEXINFOS',
3320 FOREIGN, 'mdate-sh');
3324 if ($config_aux_dir_set_in_configure_ac)
3326 $conf_dir = "$am_config_aux_dir/";
3330 $conf_dir = '$(srcdir)/';
3332 $output_rules .= file_contents ('texi-vers',
3333 new Automake::Location,
3336 STAMPVTI => "${soutdir}stamp-$vti",
3337 VTEXI => "$soutdir$vtexi",
3339 DIRSTAMP => $dirstamp);
3343 # Handle location of texinfo.tex.
3344 my $need_texi_file = 0;
3346 if (var ('TEXINFO_TEX'))
3348 # The user defined TEXINFO_TEX so assume he knows what he is
3350 $texinfodir = ('$(srcdir)/'
3351 . dirname (variable_value ('TEXINFO_TEX')));
3353 elsif ($config_aux_dir_set_in_configure_ac)
3355 $texinfodir = $am_config_aux_dir;
3356 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3357 $need_texi_file = 2; # so that we require_conf_file later
3361 $texinfodir = '$(srcdir)';
3362 $need_texi_file = 1;
3364 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3366 push (@dist_targets, 'dist-info');
3368 if (! option 'no-installinfo')
3370 # Make sure documentation is made and installed first. Use
3371 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3372 # get run twice during "make all".
3373 unshift (@all, '$(INFO_DEPS)');
3376 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3377 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3378 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3379 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3381 # This next isn't strictly needed now -- the places that look here
3382 # could easily be changed to look in info_TEXINFOS. But this is
3383 # probably better, in case noinst_TEXINFOS is ever supported.
3384 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3386 # Do some error checking. Note that this file is not required
3387 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3389 if ($need_texi_file && ! option 'no-texinfo.tex')
3391 if ($need_texi_file > 1)
3393 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3398 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3403 return (makefile_wrap ("", "\t ", @mostly_cleans),
3404 makefile_wrap ("", "\t ", @texi_cleans),
3405 makefile_wrap ("", "\t ", @maint_cleans));
3411 # Handle all Texinfo source.
3412 sub handle_texinfo ()
3414 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3415 # FIXME: I think this is an obsolete future feature name.
3416 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3418 my $info_texinfos = var ('info_TEXINFOS');
3419 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3422 define_verbose_texinfo;
3423 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3429 $output_rules .= file_contents ('texinfos',
3430 new Automake::Location,
3431 AM_V_DVIPS => verbose_flag('DVIPS'),
3432 MOSTLYCLEAN => $mostlyclean,
3433 TEXICLEAN => $clean,
3434 MAINTCLEAN => $maintclean,
3435 'LOCAL-TEXIS' => !!$info_texinfos,
3436 TEXIQUIET => verbose_flag('texinfo'));
3440 # Handle any man pages.
3441 sub handle_man_pages
3443 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3445 # Find all the sections in use. We do this by first looking for
3446 # "standard" sections, and then looking for any additional
3447 # sections used in man_MANS.
3448 my (%sections, %notrans_sections, %trans_sections,
3449 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3450 # We handle nodist_ for uniformity. man pages aren't distributed
3451 # by default so it isn't actually very important.
3452 foreach my $npfx ('', 'notrans_')
3454 foreach my $pfx ('', 'dist_', 'nodist_')
3456 # Add more sections as needed.
3457 foreach my $section ('0'..'9', 'n', 'l')
3459 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3462 $sections{$section} = 1;
3463 $varname = '$(' . $varname . ')';
3464 if ($npfx eq 'notrans_')
3466 $notrans_sections{$section} = 1;
3467 $notrans_sect_vars{$varname} = 1;
3471 $trans_sections{$section} = 1;
3472 $trans_sect_vars{$varname} = 1;
3475 &push_dist_common ($varname)
3480 my $varname = $npfx . $pfx . 'man_MANS';
3481 my $var = var ($varname);
3484 foreach ($var->value_as_list_recursive)
3486 # A page like 'foo.1c' goes into man1dir.
3487 if (/\.([0-9a-z])([a-z]*)$/)
3490 if ($npfx eq 'notrans_')
3492 $notrans_sections{$1} = 1;
3496 $trans_sections{$1} = 1;
3501 $varname = '$(' . $varname . ')';
3502 if ($npfx eq 'notrans_')
3504 $notrans_vars{$varname} = 1;
3508 $trans_vars{$varname} = 1;
3510 &push_dist_common ($varname)
3516 return unless %sections;
3520 # Build section independent variables.
3521 my $have_notrans = %notrans_vars;
3522 my @notrans_list = sort keys %notrans_vars;
3523 my $have_trans = %trans_vars;
3524 my @trans_list = sort keys %trans_vars;
3526 # Now for each section, generate an install and uninstall rule.
3527 # Sort sections so output is deterministic.
3528 foreach my $section (sort keys %sections)
3530 # Build section dependent variables.
3531 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3532 my $trans_mans = $have_trans || exists $trans_sections{$section};
3533 my (%notrans_this_sect, %trans_this_sect);
3534 my $expr = 'man' . $section . '_MANS';
3535 foreach my $varname (keys %notrans_sect_vars)
3537 if ($varname =~ /$expr/)
3539 $notrans_this_sect{$varname} = 1;
3542 foreach my $varname (keys %trans_sect_vars)
3544 if ($varname =~ /$expr/)
3546 $trans_this_sect{$varname} = 1;
3549 my @notrans_sect_list = sort keys %notrans_this_sect;
3550 my @trans_sect_list = sort keys %trans_this_sect;
3551 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3552 keys %notrans_this_sect, keys %trans_this_sect);
3553 my @deps = sort @unsorted_deps;
3554 $output_rules .= &file_contents ('mans',
3555 new Automake::Location,
3556 SECTION => $section,
3558 NOTRANS_MANS => $notrans_mans,
3559 NOTRANS_SECT_LIST => "@notrans_sect_list",
3560 HAVE_NOTRANS => $have_notrans,
3561 NOTRANS_LIST => "@notrans_list",
3562 TRANS_MANS => $trans_mans,
3563 TRANS_SECT_LIST => "@trans_sect_list",
3564 HAVE_TRANS => $have_trans,
3565 TRANS_LIST => "@trans_list");
3568 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3569 keys %notrans_sect_vars, keys %trans_sect_vars);
3570 my @mans = sort @unsorted_deps;
3571 $output_vars .= file_contents ('mans-vars',
3572 new Automake::Location,
3575 push (@all, '$(MANS)')
3576 unless option 'no-installman';
3579 # Handle DATA variables.
3582 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3583 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3584 'ps', 'sysconf', 'sharedstate', 'localstate',
3585 'pkgdata', 'lisp', 'noinst', 'check');
3592 foreach my $spec (@config_headers)
3594 my ($out, @ins) = split_config_file_spec ($spec);
3595 foreach my $in (@ins)
3597 # If the config header source is in this directory,
3599 push @config, basename ($in)
3600 if $relative_dir eq dirname ($in);
3604 define_variable ('am__tagged_files',
3605 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3606 . "@config", INTERNAL);
3608 if (rvar('am__tagged_files')->value_as_list_recursive
3609 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3611 $output_rules .= &file_contents ('tags', new Automake::Location);
3612 set_seen 'TAGS_DEPENDENCIES';
3616 reject_var ('TAGS_DEPENDENCIES',
3617 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3618 . " without\nsources or 'ETAGS_ARGS'");
3619 # Every Makefile must define some sort of TAGS rule.
3620 # Otherwise, it would be possible for a top-level "make TAGS"
3621 # to fail because some subdirectory failed. Ditto ctags and
3625 "ctags CTAGS:\n\n" .
3626 "cscope cscopelist:\n\n";
3631 # user_phony_rule ($NAME)
3632 # -----------------------
3633 # Return false if rule $NAME does not exist. Otherwise,
3634 # declare it as phony, complete its definition (in case it is
3635 # conditional), and return its Automake::Rule instance.
3636 sub user_phony_rule ($)
3639 my $rule = rule $name;
3642 depend ('.PHONY', $name);
3643 # Define $NAME in all condition where it is not already defined,
3644 # so that it is always OK to depend on $NAME.
3645 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3647 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3649 $output_rules .= $c->subst_string . "$name:\n";
3658 # Handle 'dist' target.
3661 # Substitutions for distdir.am
3664 # Define DIST_SUBDIRS. This must always be done, regardless of the
3665 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3666 my $subdirs = var ('SUBDIRS');
3669 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3670 # to all possible directories, and use it. If DIST_SUBDIRS is
3671 # defined, just use it.
3673 # Note that we check DIST_SUBDIRS first on purpose, so that
3674 # we don't call has_conditional_contents for now reason.
3675 # (In the past one project used so many conditional subdirectories
3676 # that calling has_conditional_contents on SUBDIRS caused
3677 # automake to grow to 150Mb -- this should not happen with
3678 # the current implementation of has_conditional_contents,
3679 # but it's more efficient to avoid the call anyway.)
3680 if (var ('DIST_SUBDIRS'))
3683 elsif ($subdirs->has_conditional_contents)
3685 define_pretty_variable
3686 ('DIST_SUBDIRS', TRUE, INTERNAL,
3687 uniq ($subdirs->value_as_list_recursive));
3691 # We always define this because that is what 'distclean'
3693 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3698 # The remaining definitions are only required when a dist target is used.
3699 return if option 'no-dist';
3701 # At least one of the archive formats must be enabled.
3702 if ($relative_dir eq '.')
3704 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3705 $archive_defined ||=
3706 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3707 error (option 'no-dist-gzip',
3708 "no-dist-gzip specified but no dist-* specified,\n"
3709 . "at least one archive format must be enabled")
3710 unless $archive_defined;
3713 # Look for common files that should be included in distribution.
3714 # If the aux dir is set, and it does not have a Makefile.am, then
3715 # we check for these files there as well.
3717 if ($relative_dir eq '.'
3718 && $config_aux_dir_set_in_configure_ac)
3720 if (! &is_make_dir ($config_aux_dir))
3725 foreach my $cfile (@common_files)
3727 if (dir_has_case_matching_file ($relative_dir, $cfile)
3728 # The file might be absent, but if it can be built it's ok.
3731 &push_dist_common ($cfile);
3734 # Don't use 'elsif' here because a file might meaningfully
3735 # appear in both directories.
3736 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3738 &push_dist_common ("$config_aux_dir/$cfile")
3742 # We might copy elements from $configure_dist_common to
3743 # %dist_common if we think we need to. If the file appears in our
3744 # directory, we would have discovered it already, so we don't
3745 # check that. But if the file is in a subdir without a Makefile,
3746 # we want to distribute it here if we are doing '.'. Ugly!
3747 # Also, in some corner cases, it's possible that the following code
3748 # will cause the same file to appear in the $(DIST_COMMON) variables
3749 # of two distinct Makefiles; but this is not a problem, since the
3750 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3751 # file being distributed multiple times.
3752 # See also automake bug#9651.
3753 if ($relative_dir eq '.')
3755 foreach my $file (split (' ' , $configure_dist_common))
3757 my $dir = dirname ($file);
3758 push_dist_common ($file)
3759 if ($dir eq '.' || ! is_make_dir ($dir));
3763 # Files to distributed. Don't use ->value_as_list_recursive
3764 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3765 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3766 @dist_common = uniq @dist_common;
3767 variable_delete 'DIST_COMMON';
3768 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3770 # Now that we've processed DIST_COMMON, disallow further attempts
3772 $handle_dist_run = 1;
3774 # Scan EXTRA_DIST to see if we need to distribute anything from a
3775 # subdir. If so, add it to the list. I didn't want to do this
3776 # originally, but there were so many requests that I finally
3778 my $extra_dist = var ('EXTRA_DIST');
3780 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3781 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3783 # If the target 'dist-hook' exists, make sure it is run. This
3784 # allows users to do random weird things to the distribution
3785 # before it is packaged up.
3786 push (@dist_targets, 'dist-hook')
3787 if user_phony_rule 'dist-hook';
3788 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3790 my $flm = option ('filename-length-max');
3791 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3793 $output_rules .= &file_contents ('distdir',
3794 new Automake::Location,
3796 FILENAME_FILTER => $filename_filter);
3800 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3801 # -------------------------------------------------------
3802 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3803 # name. Use $WHERE as a location in the diagnostic, if any.
3804 sub check_directory ($$;$)
3806 my ($dir, $where, $reldir) = @_;
3807 $reldir = '.' unless defined $reldir;
3809 error $where, "required directory $reldir/$dir does not exist"
3810 unless -d "$reldir/$dir";
3812 # If an 'obj/' directory exists, BSD make will enter it before
3813 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3819 # % cat obj/Makefile
3825 # % pmake # BSD make
3828 msg ('portability', $where,
3829 "naming a subdirectory 'obj' causes troubles with BSD make")
3832 # 'aux' is probably the most important of the following forbidden name,
3833 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3834 msg ('portability', $where,
3835 "name '$dir' is reserved on W32 and DOS platforms")
3836 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3839 # check_directories_in_var ($VARIABLE)
3840 # ------------------------------------
3841 # Recursively check all items in variables $VARIABLE as directories
3842 sub check_directories_in_var ($)
3845 $var->traverse_recursively
3848 my ($var, $val, $cond, $full_cond) = @_;
3849 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3853 skip_ac_subst => 1);
3856 # &handle_subdirs ()
3857 # ------------------
3858 # Handle subdirectories.
3859 sub handle_subdirs ()
3861 my $subdirs = var ('SUBDIRS');
3865 check_directories_in_var $subdirs;
3867 my $dsubdirs = var ('DIST_SUBDIRS');
3868 check_directories_in_var $dsubdirs
3871 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3872 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3876 # ($REGEN, @DEPENDENCIES)
3879 # If aclocal.m4 creation is automated, return the list of its dependencies.
3880 sub scan_aclocal_m4 ()
3882 my $regen_aclocal = 0;
3884 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3885 set_seen 'CONFIGURE_DEPENDENCIES';
3887 if (-f 'aclocal.m4')
3889 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3891 my $aclocal = new Automake::XFile "< aclocal.m4";
3892 my $line = $aclocal->getline;
3893 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3898 if (set_seen ('ACLOCAL_M4_SOURCES'))
3900 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3901 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3902 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3903 . "It should be safe to simply remove it");
3906 # Note that it might be possible that aclocal.m4 doesn't exist but
3907 # should be auto-generated. This case probably isn't very
3910 return ($regen_aclocal, @ac_deps);
3914 # Helper function for substitute_ac_subst_variables.
3915 sub substitute_ac_subst_variables_worker($)
3918 return "\@$token\@" if var $token;
3919 return "\${$token\}";
3922 # substitute_ac_subst_variables ($TEXT)
3923 # -------------------------------------
3924 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3926 sub substitute_ac_subst_variables ($)
3929 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3934 # &prepend_srcdir (@INPUTS)
3935 # -------------------------
3936 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3937 # if an input file has a directory part the same as the current
3938 # directory, then the directory part is simply replaced by $(srcdir).
3939 # But if the directory part is different, then $(top_srcdir) is
3941 sub prepend_srcdir (@)
3946 foreach my $single (@inputs)
3948 if (dirname ($single) eq $relative_dir)
3950 push (@newinputs, '$(srcdir)/' . basename ($single));
3954 push (@newinputs, '$(top_srcdir)/' . $single);
3961 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3962 # ---------------------------------------------------
3963 # Compute a list of dependencies appropriate for the rebuild
3965 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3966 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
3967 sub rewrite_inputs_into_dependencies ($@)
3969 my ($file, @inputs) = @_;
3974 # We cannot create dependencies on shell variables.
3975 next if (substitute_ac_subst_variables $i) =~ /\$/;
3977 if (exists $ac_config_files_location{$i} && $i ne $file)
3979 my $di = dirname $i;
3980 if ($di eq $relative_dir)
3984 # In the top-level Makefile we do not use $(top_builddir), because
3985 # we are already there, and since the targets are built without
3986 # a $(top_builddir), it helps BSD Make to match them with
3988 elsif ($relative_dir ne '.')
3990 $i = '$(top_builddir)/' . $i;
3995 msg ('error', $ac_config_files_location{$file},
3996 "required file '$i' not found")
3997 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3998 ($i) = prepend_srcdir ($i);
3999 push_dist_common ($i);
4008 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4009 # ------------------------------------------------------------------
4010 # Handle remaking and configure stuff.
4011 # We need the name of the input file, to do proper remaking rules.
4012 sub handle_configure ($$$@)
4014 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4016 prog_error 'empty @inputs'
4019 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4021 my $rel_makefile = basename $makefile;
4023 my $colon_infile = ':' . join (':', @inputs);
4024 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4025 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4026 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4027 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4028 @configure_deps, @aclocal_m4_deps,
4029 '$(top_srcdir)/' . $configure_ac);
4030 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4031 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4032 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4035 my $automake_options = '--' . $strictness_name .
4036 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4038 $output_rules .= file_contents
4040 new Automake::Location,
4041 MAKEFILE => $rel_makefile,
4042 'MAKEFILE-DEPS' => "@rewritten",
4043 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4044 'MAKEFILE-IN' => $rel_makefile_in,
4045 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4046 'MAKEFILE-IN-DEPS' => "@include_stack",
4047 'MAKEFILE-AM' => $rel_makefile_am,
4048 'AUTOMAKE-OPTIONS' => $automake_options,
4049 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4050 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4051 VERBOSE => verbose_flag ('GEN'));
4053 if ($relative_dir eq '.')
4055 &push_dist_common ('acconfig.h')
4059 # If we have a configure header, require it.
4061 my @distclean_config;
4062 foreach my $spec (@config_headers)
4065 # $CONFIG_H_PATH: config.h from top level.
4066 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4067 my $config_h_dir = dirname ($config_h_path);
4069 # If the header is in the current directory we want to build
4070 # the header here. Otherwise, if we're at the topmost
4071 # directory and the header's directory doesn't have a
4072 # Makefile, then we also want to build the header.
4073 if ($relative_dir eq $config_h_dir
4074 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4076 my ($cn_sans_dir, $stamp_dir);
4077 if ($relative_dir eq $config_h_dir)
4079 $cn_sans_dir = basename ($config_h_path);
4084 $cn_sans_dir = $config_h_path;
4085 if ($config_h_dir eq '.')
4091 $stamp_dir = $config_h_dir . '/';
4095 # This will also distribute all inputs.
4096 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4098 # Cannot define rebuild rules for filenames with shell variables.
4099 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4101 # Header defined in this directory.
4103 if (-f $config_h_path . '.top')
4105 push (@files, "$cn_sans_dir.top");
4107 if (-f $config_h_path . '.bot')
4109 push (@files, "$cn_sans_dir.bot");
4112 push_dist_common (@files);
4114 # For now, acconfig.h can only appear in the top srcdir.
4115 if (-f 'acconfig.h')
4117 push (@files, '$(top_srcdir)/acconfig.h');
4120 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4122 file_contents ('remake-hdr',
4123 new Automake::Location,
4125 CONFIG_H => $cn_sans_dir,
4126 CONFIG_HIN => $ins[0],
4127 CONFIG_H_DEPS => "@ins",
4128 CONFIG_H_PATH => $config_h_path,
4131 push @distclean_config, $cn_sans_dir, $stamp;
4135 $output_rules .= file_contents ('clean-hdr',
4136 new Automake::Location,
4137 FILES => "@distclean_config")
4138 if @distclean_config;
4140 # Distribute and define mkinstalldirs only if it is already present
4141 # in the package, for backward compatibility (some people may still
4142 # use $(mkinstalldirs)).
4143 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4146 # Use require_file so that any existing script gets updated
4147 # by --force-missing.
4148 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4149 define_variable ('mkinstalldirs',
4150 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4154 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4155 # at least one argument, and $(mkinstalldirs) used to work
4156 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4157 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4160 reject_var ('CONFIG_HEADER',
4161 "'CONFIG_HEADER' is an anachronism; now determined "
4162 . "automatically\nfrom '$configure_ac'");
4165 foreach my $spec (@config_headers)
4167 my ($out, @ins) = split_config_file_spec ($spec);
4168 # Generate CONFIG_HEADER define.
4169 if ($relative_dir eq dirname ($out))
4171 push @config_h, basename ($out);
4175 push @config_h, "\$(top_builddir)/$out";
4178 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4181 # Now look for other files in this directory which must be remade
4182 # by config.status, and generate rules for them.
4183 my @actual_other_files = ();
4184 # These get cleaned only in a VPATH build.
4185 my @actual_other_vpath_files = ();
4186 foreach my $lfile (@other_input_files)
4190 if ($lfile =~ /^([^:]*):(.*)$/)
4192 # This is the ":" syntax of AC_OUTPUT.
4194 @inputs = split (':', $2);
4200 @inputs = $file . '.in';
4203 # Automake files should not be stored in here, but in %MAKE_LIST.
4204 prog_error ("$lfile in \@other_input_files\n"
4205 . "\@other_input_files = (@other_input_files)")
4206 if -f $file . '.am';
4208 my $local = basename ($file);
4210 # We skip files that aren't in this directory. However, if
4211 # the file's directory does not have a Makefile, and we are
4212 # currently doing '.', then we create a rule to rebuild the
4213 # file in the subdir.
4214 my $fd = dirname ($file);
4215 if ($fd ne $relative_dir)
4217 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4227 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4229 # Cannot output rules for shell variables.
4230 next if (substitute_ac_subst_variables $local) =~ /\$/;
4233 my $cond = $ac_config_files_condition{$lfile};
4236 $condstr = $cond->subst_string;
4237 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4238 $ac_config_files_location{$file});
4240 $output_rules .= ($condstr . $local . ': '
4241 . '$(top_builddir)/config.status '
4242 . "@rewritten_inputs\n"
4244 . 'cd $(top_builddir) && '
4245 . '$(SHELL) ./config.status '
4246 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4249 push (@actual_other_files, $local);
4252 # For links we should clean destinations and distribute sources.
4253 foreach my $spec (@config_links)
4255 my ($link, $file) = split /:/, $spec;
4256 # Some people do AC_CONFIG_LINKS($computed). We only handle
4257 # the DEST:SRC form.
4259 my $where = $ac_config_files_location{$link};
4261 # Skip destinations that contain shell variables.
4262 if ((substitute_ac_subst_variables $link) !~ /\$/)
4264 # We skip links that aren't in this directory. However, if
4265 # the link's directory does not have a Makefile, and we are
4266 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4267 # in '.'s Makefile.in.
4268 my $local = basename ($link);
4269 my $fd = dirname ($link);
4270 if ($fd ne $relative_dir)
4272 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4283 push @actual_other_files, $local if $local;
4287 push @actual_other_vpath_files, $local if $local;
4291 # Do not process sources that contain shell variables.
4292 if ((substitute_ac_subst_variables $file) !~ /\$/)
4294 my $fd = dirname ($file);
4296 # We distribute files that are in this directory.
4297 # At the top-level ('.') we also distribute files whose
4298 # directory does not have a Makefile.
4299 if (($fd eq $relative_dir)
4300 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4302 # The following will distribute $file as a side-effect when
4303 # it is appropriate (i.e., when $file is not already an output).
4304 # We do not need the result, just the side-effect.
4305 rewrite_inputs_into_dependencies ($link, $file);
4310 # These files get removed by "make distclean".
4311 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4312 @actual_other_files);
4313 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4314 @actual_other_vpath_files);
4320 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4321 'oldinclude', 'pkginclude',
4325 next unless $_->[1] =~ /\..*$/;
4326 &saw_extension ($&);
4332 return if ! $seen_gettext || $relative_dir ne '.';
4334 my $subdirs = var 'SUBDIRS';
4338 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4342 # Perform some sanity checks to help users get the right setup.
4343 # We disable these tests when po/ doesn't exist in order not to disallow
4344 # unusual gettext setups.
4349 # | 1) If a package doesn't have a directory po/ at top level, it
4350 # | will likely have multiple po/ directories in subpackages.
4352 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4353 # | is used without 'external'. It is also useful to warn for the
4354 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4355 # | warnings apply only to the usual layout of packages, therefore
4356 # | they should both be disabled if no po/ directory is found at
4361 my @subdirs = $subdirs->value_as_list_recursive;
4363 msg_var ('syntax', $subdirs,
4364 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4365 if ! grep ($_ eq 'po', @subdirs);
4367 # intl/ is not required when AM_GNU_GETTEXT is called with the
4368 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4369 msg_var ('syntax', $subdirs,
4370 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4371 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4372 && ! grep ($_ eq 'intl', @subdirs));
4374 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4375 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4376 msg_var ('syntax', $subdirs,
4377 "'intl' should not be in SUBDIRS when "
4378 . "AM_GNU_GETTEXT([external]) is used")
4379 if ($seen_gettext_external && ! $seen_gettext_intl
4380 && grep ($_ eq 'intl', @subdirs));
4383 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4386 # Handle footer elements.
4389 reject_rule ('.SUFFIXES',
4390 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4392 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4393 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4394 # anything else, by sticking it right after the default: target.
4395 $output_header .= ".SUFFIXES:\n";
4396 my $suffixes = var 'SUFFIXES';
4397 my @suffixes = Automake::Rule::suffixes;
4398 if (@suffixes || $suffixes)
4400 # Make sure SUFFIXES has unique elements. Sort them to ensure
4401 # the output remains consistent. However, $(SUFFIXES) is
4402 # always at the start of the list, unsorted. This is done
4403 # because make will choose rules depending on the ordering of
4404 # suffixes, and this lets the user have some control. Push
4405 # actual suffixes, and not $(SUFFIXES). Some versions of make
4406 # do not like variable substitutions on the .SUFFIXES line.
4407 my @user_suffixes = ($suffixes
4408 ? $suffixes->value_as_list_recursive : ());
4410 my %suffixes = map { $_ => 1 } @suffixes;
4411 delete @suffixes{@user_suffixes};
4413 $output_header .= (".SUFFIXES: "
4414 . join (' ', @user_suffixes, sort keys %suffixes)
4418 $output_trailer .= file_contents ('footer', new Automake::Location);
4422 # Generate 'make install' rules.
4423 sub handle_install ()
4425 $output_rules .= &file_contents
4427 new Automake::Location,
4428 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4429 ? (" \$(BUILT_SOURCES)\n"
4430 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4432 'installdirs-local' => (user_phony_rule 'installdirs-local'
4433 ? ' installdirs-local' : ''),
4434 am__installdirs => variable_value ('am__installdirs') || '');
4438 # Deal with all and all-am.
4441 my ($makefile) = @_;
4445 # Put this at the beginning for the sake of non-GNU makes. This
4446 # is still wrong if these makes can run parallel jobs. But it is
4448 unshift (@all, basename ($makefile));
4450 foreach my $spec (@config_headers)
4452 my ($out, @ins) = split_config_file_spec ($spec);
4453 push (@all, basename ($out))
4454 if dirname ($out) eq $relative_dir;
4457 # Install 'all' hooks.
4458 push (@all, "all-local")
4459 if user_phony_rule "all-local";
4461 &pretty_print_rule ("all-am:", "\t\t", @all);
4462 &depend ('.PHONY', 'all-am', 'all');
4467 my @local_headers = ();
4468 push @local_headers, '$(BUILT_SOURCES)'
4469 if var ('BUILT_SOURCES');
4470 foreach my $spec (@config_headers)
4472 my ($out, @ins) = split_config_file_spec ($spec);
4473 push @local_headers, basename ($out)
4474 if dirname ($out) eq $relative_dir;
4479 # We need to make sure config.h is built before we recurse.
4480 # We also want to make sure that built sources are built
4481 # before any ordinary 'all' targets are run. We can't do this
4482 # by changing the order of dependencies to the "all" because
4483 # that breaks when using parallel makes. Instead we handle
4484 # things explicitly.
4485 $output_all .= ("all: @local_headers"
4487 . '$(MAKE) $(AM_MAKEFLAGS) '
4488 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4490 depend ('.MAKE', 'all');
4494 $output_all .= "all: " . (var ('SUBDIRS')
4495 ? 'all-recursive' : 'all-am') . "\n\n";
4499 # Generate helper targets for user recursion, where needed.
4500 sub handle_user_recursion ()
4502 return unless @extra_recursive_targets;
4504 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4505 map { "$_-recursive" } @extra_recursive_targets);
4506 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4507 foreach my $target (@extra_recursive_targets)
4509 # This allows the default target's rules to be overridden in
4511 user_phony_rule ($target);
4512 depend ("$target", "$target-$aux");
4513 depend ("$target-am", "$target-local");
4514 # Every user-defined recursive target 'foo' *must* have a valid
4515 # associated 'foo-local' rule; we define it as an empty rule by
4516 # default, so that the user can transparently extend it in his
4518 pretty_print_rule ("$target-local:");
4519 # $target-recursive might as well be undefined, so do not add
4520 # it here; it's taken care of in subdirs.am anyway.
4521 depend (".PHONY", "$target-am", "$target-local");
4526 # &do_check_merge_target ()
4527 # -------------------------
4528 # Handle check merge target specially.
4529 sub do_check_merge_target ()
4531 # Include user-defined local form of target.
4532 push @check_tests, 'check-local'
4533 if user_phony_rule 'check-local';
4535 # The check target must depend on the local equivalent of
4536 # 'all', to ensure all the primary targets are built. Then it
4537 # must build the local check rules.
4538 $output_rules .= "check-am: all-am\n";
4541 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4542 depend ('.MAKE', 'check-am');
4547 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4549 depend ('.MAKE', 'check-am');
4552 depend '.PHONY', 'check', 'check-am';
4553 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4554 $output_rules .= ("check: "
4555 . (var ('BUILT_SOURCES')
4556 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4558 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4560 depend ('.MAKE', 'check')
4561 if var ('BUILT_SOURCES');
4564 # handle_clean ($MAKEFILE)
4565 # ------------------------
4566 # Handle all 'clean' targets.
4567 sub handle_clean ($)
4569 my ($makefile) = @_;
4571 # Clean the files listed in user variables if they exist.
4572 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4573 if var ('MOSTLYCLEANFILES');
4574 $clean_files{'$(CLEANFILES)'} = CLEAN
4575 if var ('CLEANFILES');
4576 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4577 if var ('DISTCLEANFILES');
4578 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4579 if var ('MAINTAINERCLEANFILES');
4581 # Built sources are automatically removed by maintainer-clean.
4582 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4583 if var ('BUILT_SOURCES');
4585 # Compute a list of "rm"s to run for each target.
4586 my %rms = (MOSTLY_CLEAN, [],
4589 MAINTAINER_CLEAN, []);
4591 foreach my $file (keys %clean_files)
4593 my $when = $clean_files{$file};
4594 prog_error 'invalid entry in %clean_files'
4595 unless exists $rms{$when};
4597 my $rm = "rm -f $file";
4598 # If file is a variable, make sure when don't call 'rm -f' without args.
4599 $rm ="test -z \"$file\" || $rm"
4600 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4602 push @{$rms{$when}}, "\t-$rm\n";
4605 $output_rules .= &file_contents
4607 new Automake::Location,
4608 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4609 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4610 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4611 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4612 MAKEFILE => basename $makefile,
4617 # &target_cmp ($A, $B)
4618 # --------------------
4619 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4620 # other '.TARGETS' be last.
4623 return 0 if $a eq $b;
4625 my $a1 = substr ($a, 0, 1);
4626 my $b1 = substr ($b, 0, 1);
4629 return -1 if $b1 eq '.';
4630 return 1 if $a1 eq '.';
4636 # &handle_factored_dependencies ()
4637 # --------------------------------
4638 # Handle everything related to gathered targets.
4639 sub handle_factored_dependencies
4642 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4643 'uninstall-exec-local', 'uninstall-exec-hook',
4644 'uninstall-dvi-local',
4645 'uninstall-html-local',
4646 'uninstall-info-local',
4647 'uninstall-pdf-local',
4648 'uninstall-ps-local')
4652 reject_rule ($utarg, "use '$x', not '$utarg'");
4655 reject_rule ('install-local',
4656 "use 'install-data-local' or 'install-exec-local', "
4657 . "not 'install-local'");
4659 reject_rule ('install-hook',
4660 "use 'install-data-hook' or 'install-exec-hook', "
4661 . "not 'install-hook'");
4663 # Install the -local hooks.
4664 foreach (keys %dependencies)
4666 # Hooks are installed on the -am targets.
4668 depend ("$_-am", "$_-local")
4669 if user_phony_rule "$_-local";
4672 # Install the -hook hooks.
4673 # FIXME: Why not be as liberal as we are with -local hooks?
4674 foreach ('install-exec', 'install-data', 'uninstall')
4676 if (user_phony_rule "$_-hook")
4678 depend ('.MAKE', "$_-am");
4679 register_action("$_-am",
4680 ("\t\@\$(NORMAL_INSTALL)\n"
4681 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4685 # All the required targets are phony.
4686 depend ('.PHONY', keys %required_targets);
4688 # Actually output gathered targets.
4689 foreach (sort target_cmp keys %dependencies)
4691 # If there is nothing about this guy, skip it.
4693 unless (@{$dependencies{$_}}
4695 || $required_targets{$_});
4697 # Define gathered targets in undefined conditions.
4698 # FIXME: Right now we must handle .PHONY as an exception,
4699 # because people write things like
4700 # .PHONY: myphonytarget
4701 # to append dependencies. This would not work if Automake
4702 # refrained from defining its own .PHONY target as it does
4703 # with other overridden targets.
4704 # Likewise for '.MAKE'.
4705 my @undefined_conds = (TRUE,);
4706 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4709 Automake::Rule::define ($_, 'internal',
4710 RULE_AUTOMAKE, TRUE, INTERNAL);
4712 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4713 foreach my $cond (@undefined_conds)
4715 my $condstr = $cond->subst_string;
4716 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4717 $output_rules .= $actions{$_} if defined $actions{$_};
4718 $output_rules .= "\n";
4724 # &handle_tests_dejagnu ()
4725 # ------------------------
4726 sub handle_tests_dejagnu
4728 push (@check_tests, 'check-DEJAGNU');
4729 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4732 sub handle_per_suffix_test
4734 my ($test_suffix, %transform) = @_;
4735 my ($pfx, $generic, $am_exeext);
4736 if ($test_suffix eq '')
4740 $am_exeext = 'FALSE';
4744 prog_error ("test suffix '$test_suffix' lacks leading dot")
4745 unless $test_suffix =~ m/^\.(.*)/;
4746 $pfx = uc ($1) . '_';
4748 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4751 # The "test driver" program, deputed to handle tests protocol used by
4752 # test scripts. By default, it's assumed that no protocol is used, so
4753 # we fall back to the old behaviour, implemented by the 'test-driver'
4755 if (! var "${pfx}LOG_DRIVER")
4757 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4758 define_variable ("${pfx}LOG_DRIVER",
4759 "\$(SHELL) $am_config_aux_dir/test-driver",
4762 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4763 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4764 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4765 my $compile = "${pfx}LOG_COMPILE";
4766 define_variable ($compile,
4767 '$(' . $pfx . 'LOG_COMPILER)'
4768 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4769 . ' $(' . $pfx . 'LOG_FLAGS)',
4771 $output_rules .= file_contents ('check2', new Automake::Location,
4772 GENERIC => $generic,
4774 DRIVER_FLAGS => $driver_flags,
4775 COMPILE => '$(' . $compile . ')',
4776 EXT => $test_suffix,
4777 am__EXEEXT => $am_exeext,
4781 # is_valid_test_extension ($EXT)
4782 # ------------------------------
4783 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4785 sub is_valid_test_extension ($)
4789 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4791 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4795 # Handle TESTS variable and other checks.
4798 if (option 'dejagnu')
4800 &handle_tests_dejagnu;
4804 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4806 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4807 . "'AUTOMAKE_OPTIONS'");
4813 push (@check_tests, 'check-TESTS');
4814 my $check_deps = "@check";
4815 $output_rules .= &file_contents ('check', new Automake::Location,
4816 SERIAL_TESTS => !! option 'serial-tests',
4817 CHECK_DEPS => $check_deps);
4819 # Tests that are known programs should have $(EXEEXT) appended.
4820 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4821 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4822 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4823 if (var ('XFAIL_TESTS'));
4825 if (! option 'serial-tests')
4827 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4830 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4833 $at_exeext = subst ('EXEEXT');
4834 $suff = $at_exeext . ' ' . $suff;
4836 if (! var 'TEST_EXTENSIONS')
4838 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4840 my $var = var 'TEST_EXTENSIONS';
4841 # Currently, we are not able to deal with conditional contents
4842 # in TEST_EXTENSIONS.
4843 if ($var->has_conditional_contents)
4845 msg_var 'unsupported', $var,
4846 "'TEST_EXTENSIONS' cannot have conditional contents";
4848 my @test_suffixes = $var->value_as_list_recursive;
4849 if ((my @invalid_test_suffixes =
4850 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4852 error $var->rdef (TRUE)->location,
4853 "invalid test extensions: @invalid_test_suffixes";
4855 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4858 unshift (@test_suffixes, $at_exeext)
4859 unless $test_suffixes[0] eq $at_exeext;
4861 unshift (@test_suffixes, '');
4863 transform_variable_recursively
4864 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4866 my ($subvar, $val, $cond, $full_cond) = @_;
4869 if $val =~ /^\@.*\@$/;
4870 $obj =~ s/\$\(EXEEXT\)$//o;
4872 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4874 msg ('error', $subvar->rdef ($cond)->location,
4875 "using '$1' in TESTS is currently broken: '$val'");
4878 foreach my $test_suffix (@test_suffixes)
4881 if $test_suffix eq $at_exeext || $test_suffix eq '';
4882 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4883 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4887 handle_per_suffix_test ('',
4897 my $last_suffix = $test_suffixes[$#test_suffixes];
4899 foreach my $test_suffix (@test_suffixes)
4901 if ($test_suffix eq $last_suffix)
4907 $cur = 'am__test_logs' . $nhelper;
4909 define_variable ($cur,
4910 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4914 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4916 handle_per_suffix_test ($test_suffix,
4922 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4923 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4924 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4929 # Handle Emacs Lisp.
4930 sub handle_emacs_lisp
4932 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4935 return if ! @elfiles;
4937 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4938 map { $_->[1] } @elfiles);
4939 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4940 '$(am__ELFILES:.el=.elc)');
4941 # This one can be overridden by users.
4942 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4944 push @all, '$(ELCFILES)';
4946 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4947 'EMACS', 'lispdir');
4953 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4955 return if ! @pyfiles;
4957 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4958 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4959 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4965 my @sourcelist = &am_install_var ('-candist',
4968 return if ! @sourcelist;
4970 my @prefixes = am_primary_prefixes ('JAVA', 1,
4974 my @java_sources = ();
4975 foreach my $prefix (@prefixes)
4977 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
4980 if $curs eq 'EXTRA';
4982 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
4986 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4987 unless $curs eq $dir;
4993 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
4996 if ($dir eq 'check')
4998 push (@check, "class$dir.stamp");
5002 push (@all, "class$dir.stamp");
5007 # Handle some of the minor options.
5008 sub handle_minor_options
5010 if (option 'readme-alpha')
5012 if ($relative_dir eq '.')
5014 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5016 msg ('error-gnits', $package_version_location,
5017 "version '$package_version' doesn't follow " .
5020 if (defined $1 && -f 'README-alpha')
5022 # This means we have an alpha release. See
5023 # GNITS_VERSION_PATTERN for details.
5024 push_dist_common ('README-alpha');
5030 ################################################################
5032 # ($OUTPUT, @INPUTS)
5033 # &split_config_file_spec ($SPEC)
5034 # -------------------------------
5035 # Decode the Autoconf syntax for config files (files, headers, links
5037 sub split_config_file_spec ($)
5040 my ($output, @inputs) = split (/:/, $spec);
5042 push @inputs, "$output.in"
5045 return ($output, @inputs);
5049 # locate_am (@POSSIBLE_SOURCES)
5050 # -----------------------------
5051 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5052 # This functions returns the first *.in file for which a *.am exists.
5053 # It returns undef otherwise.
5058 foreach my $file (@rest)
5060 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5071 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5072 # ---------------------------------------------------
5073 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5075 sub scan_autoconf_config_files ($$)
5077 my ($where, $config_files) = @_;
5079 # Look at potential Makefile.am's.
5080 foreach (split ' ', $config_files)
5082 # Must skip empty string for Perl 4.
5083 next if $_ eq "\\" || $_ eq '';
5085 # Handle $local:$input syntax.
5086 my ($local, @rest) = split (/:/);
5087 @rest = ("$local.in",) unless @rest;
5088 # Keep in sync with 'conffile-leading-dot.test'.
5089 msg ('unsupported', $where,
5090 "omit leading './' from config file names such as '$local';"
5091 . "\nremake rules might be subtly broken otherwise")
5092 if ($local =~ /^\.\//);
5093 my $input = locate_am @rest;
5096 # We have a file that automake should generate.
5097 $make_list{$input} = join (':', ($local, @rest));
5101 # We have a file that automake should cause to be
5102 # rebuilt, but shouldn't generate itself.
5103 push (@other_input_files, $_);
5105 $ac_config_files_location{$local} = $where;
5106 $ac_config_files_condition{$local} =
5107 new Automake::Condition (@cond_stack)
5113 # &scan_autoconf_traces ($FILENAME)
5114 # ---------------------------------
5115 sub scan_autoconf_traces ($)
5117 my ($filename) = @_;
5119 # Macros to trace, with their minimal number of arguments.
5121 # IMPORTANT: If you add a macro here, you should also add this macro
5122 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5124 AC_CANONICAL_BUILD => 0,
5125 AC_CANONICAL_HOST => 0,
5126 AC_CANONICAL_TARGET => 0,
5127 AC_CONFIG_AUX_DIR => 1,
5128 AC_CONFIG_FILES => 1,
5129 AC_CONFIG_HEADERS => 1,
5130 AC_CONFIG_LIBOBJ_DIR => 1,
5131 AC_CONFIG_LINKS => 1,
5135 AC_REQUIRE_AUX_FILE => 1,
5136 AC_SUBST_TRACE => 1,
5137 AM_AUTOMAKE_VERSION => 1,
5138 AM_CONDITIONAL => 2,
5139 _AM_EXTRA_RECURSIVE_TARGETS => 1,
5140 AM_GNU_GETTEXT => 0,
5141 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5142 AM_INIT_AUTOMAKE => 0,
5143 AM_MAINTAINER_MODE => 0,
5145 AM_PROG_CC_C_O => 0,
5146 _AM_SUBST_NOTMAKE => 1,
5149 _AM_COND_ENDIF => 1,
5150 LT_SUPPORTED_TAG => 1,
5151 _LT_AC_TAGCONFIG => 0,
5157 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5159 # Use a separator unlikely to be used, not ':', the default, which
5160 # has a precise meaning for AC_CONFIG_FILES and so on.
5161 $traces .= join (' ',
5162 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5165 my $tracefh = new Automake::XFile ("$traces $filename |");
5166 verb "reading $traces";
5171 while ($_ = $tracefh->getline)
5174 my ($here, $depth, @args) = split (/::/);
5175 $where = new Automake::Location $here;
5176 my $macro = $args[0];
5178 prog_error ("unrequested trace '$macro'")
5179 unless exists $traced{$macro};
5181 # Skip and diagnose malformed calls.
5182 if ($#args < $traced{$macro})
5184 msg ('syntax', $where, "not enough arguments for $macro");
5188 # Alphabetical ordering please.
5189 if ($macro eq 'AC_CANONICAL_BUILD')
5191 if ($seen_canonical <= AC_CANONICAL_BUILD)
5193 $seen_canonical = AC_CANONICAL_BUILD;
5196 elsif ($macro eq 'AC_CANONICAL_HOST')
5198 if ($seen_canonical <= AC_CANONICAL_HOST)
5200 $seen_canonical = AC_CANONICAL_HOST;
5203 elsif ($macro eq 'AC_CANONICAL_TARGET')
5205 $seen_canonical = AC_CANONICAL_TARGET;
5207 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5209 if ($seen_init_automake)
5211 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5212 . "AM_INIT_AUTOMAKE ...", partial => 1);
5213 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5215 $config_aux_dir = $args[1];
5216 $config_aux_dir_set_in_configure_ac = 1;
5217 check_directory ($config_aux_dir, $where);
5219 elsif ($macro eq 'AC_CONFIG_FILES')
5221 # Look at potential Makefile.am's.
5222 scan_autoconf_config_files ($where, $args[1]);
5224 elsif ($macro eq 'AC_CONFIG_HEADERS')
5226 foreach my $spec (split (' ', $args[1]))
5228 my ($dest, @src) = split (':', $spec);
5229 $ac_config_files_location{$dest} = $where;
5230 push @config_headers, $spec;
5233 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5235 $config_libobj_dir = $args[1];
5236 check_directory ($config_libobj_dir, $where);
5238 elsif ($macro eq 'AC_CONFIG_LINKS')
5240 foreach my $spec (split (' ', $args[1]))
5242 my ($dest, $src) = split (':', $spec);
5243 $ac_config_files_location{$dest} = $where;
5244 push @config_links, $spec;
5247 elsif ($macro eq 'AC_FC_SRCEXT')
5249 my $suffix = $args[1];
5250 # These flags are used as %SOURCEFLAG% in depend2.am,
5251 # where the trailing space is important.
5252 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5253 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5255 elsif ($macro eq 'AC_INIT')
5257 if (defined $args[2])
5259 $package_version = $args[2];
5260 $package_version_location = $where;
5263 elsif ($macro eq 'AC_LIBSOURCE')
5265 $libsources{$args[1]} = $here;
5267 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5269 # Only remember the first time a file is required.
5270 $required_aux_file{$args[1]} = $where
5271 unless exists $required_aux_file{$args[1]};
5273 elsif ($macro eq 'AC_SUBST_TRACE')
5275 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5276 # AC_SUBST(5), then too bad.
5277 $configure_vars{$args[1]} = $where
5278 if $args[1] =~ /^\w+$/;
5280 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5283 "version mismatch. This is Automake $VERSION,\n" .
5284 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5285 "comes from Automake $args[1]. You should recreate\n" .
5286 "aclocal.m4 with aclocal and run automake again.\n",
5287 # $? = 63 is used to indicate version mismatch to missing.
5289 if $VERSION ne $args[1];
5291 $seen_automake_version = 1;
5293 elsif ($macro eq 'AM_CONDITIONAL')
5295 $configure_cond{$args[1]} = $where;
5297 elsif ($macro eq '_AM_EXTRA_RECURSIVE_TARGETS')
5299 push @extra_recursive_targets, split (' ', $args[1]);
5301 elsif ($macro eq 'AM_GNU_GETTEXT')
5303 $seen_gettext = $where;
5304 $ac_gettext_location = $where;
5305 $seen_gettext_external = grep ($_ eq 'external', @args);
5307 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5309 $seen_gettext_intl = $where;
5311 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5313 $seen_init_automake = $where;
5314 if (defined $args[2])
5316 msg 'obsolete', $where, <<'EOF';
5317 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5318 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation
5320 $package_version = $args[2];
5321 $package_version_location = $where;
5323 elsif (defined $args[1])
5325 my @opts = split (' ', $args[1]);
5326 @opts = map { { option => $_, where => $where } } @opts;
5327 exit $exit_code if process_global_option_list (@opts);
5330 elsif ($macro eq 'AM_MAINTAINER_MODE')
5332 $seen_maint_mode = $where;
5334 elsif ($macro eq 'AM_PROG_AR')
5338 elsif ($macro eq 'AM_PROG_CC_C_O')
5340 $seen_cc_c_o = $where;
5342 elsif ($macro eq '_AM_COND_IF')
5344 cond_stack_if ('', $args[1], $where);
5345 error ($where, "missing m4 quoting, macro depth $depth")
5348 elsif ($macro eq '_AM_COND_ELSE')
5350 cond_stack_else ('!', $args[1], $where);
5351 error ($where, "missing m4 quoting, macro depth $depth")
5354 elsif ($macro eq '_AM_COND_ENDIF')
5356 cond_stack_endif (undef, undef, $where);
5357 error ($where, "missing m4 quoting, macro depth $depth")
5360 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5362 $ignored_configure_vars{$args[1]} = $where;
5364 elsif ($macro eq 'm4_include'
5365 || $macro eq 'm4_sinclude'
5366 || $macro eq 'sinclude')
5368 # Skip missing 'sinclude'd files.
5369 next if $macro ne 'm4_include' && ! -f $args[1];
5371 # Some modified versions of Autoconf don't use
5372 # frozen files. Consequently it's possible that we see all
5373 # m4_include's performed during Autoconf's startup.
5374 # Obviously we don't want to distribute Autoconf's files
5375 # so we skip absolute filenames here.
5376 push @configure_deps, '$(top_srcdir)/' . $args[1]
5377 unless $here =~ m,^(?:\w:)?[\\/],;
5378 # Keep track of the greatest timestamp.
5381 my $mtime = mtime $args[1];
5382 $configure_deps_greatest_timestamp = $mtime
5383 if $mtime > $configure_deps_greatest_timestamp;
5386 elsif ($macro eq 'LT_SUPPORTED_TAG')
5388 $libtool_tags{$args[1]} = 1;
5389 $libtool_new_api = 1;
5391 elsif ($macro eq '_LT_AC_TAGCONFIG')
5393 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5394 # We use it to detect whether tags are supported. Our
5395 # preferred interface is LT_SUPPORTED_TAG, but it was
5396 # introduced in Libtool 1.6.
5397 if (0 == keys %libtool_tags)
5399 # Hardcode the tags supported by Libtool 1.5.
5400 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5405 error ($where, "condition stack not properly closed")
5412 # &scan_autoconf_files ()
5413 # -----------------------
5414 # Check whether we use 'configure.ac' or 'configure.in'.
5415 # Scan it (and possibly 'aclocal.m4') for interesting things.
5416 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5417 sub scan_autoconf_files ()
5419 # Reinitialize libsources here. This isn't really necessary,
5420 # since we currently assume there is only one configure.ac. But
5421 # that won't always be the case.
5424 # Keep track of the youngest configure dependency.
5425 $configure_deps_greatest_timestamp = mtime $configure_ac;
5426 if (-e 'aclocal.m4')
5428 my $mtime = mtime 'aclocal.m4';
5429 $configure_deps_greatest_timestamp = $mtime
5430 if $mtime > $configure_deps_greatest_timestamp;
5433 scan_autoconf_traces ($configure_ac);
5435 @configure_input_files = sort keys %make_list;
5436 # Set input and output files if not specified by user.
5439 @input_files = @configure_input_files;
5440 %output_files = %make_list;
5444 if (! $seen_init_automake)
5446 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5447 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5448 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5449 . "and that aclocal.m4 was recently regenerated "
5450 . "(using aclocal)");
5454 if (! $seen_automake_version)
5456 if (-f 'aclocal.m4')
5458 error ($seen_init_automake,
5459 "your implementation of AM_INIT_AUTOMAKE comes from " .
5460 "an\nold Automake version. You should recreate " .
5461 "aclocal.m4\nwith aclocal and run automake again",
5462 # $? = 63 is used to indicate version mismatch to missing.
5467 error ($seen_init_automake,
5468 "no proper implementation of AM_INIT_AUTOMAKE was " .
5469 "found,\nprobably because aclocal.m4 is missing.\n" .
5470 "You should run aclocal to create this file, then\n" .
5471 "run automake again");
5478 # Look for some files we need. Always check for these. This
5479 # check must be done for every run, even those where we are only
5480 # looking at a subdir Makefile. We must set relative_dir for
5481 # push_required_file to work.
5482 # Sort the files for stable verbose output.
5483 $relative_dir = '.';
5484 foreach my $file (sort keys %required_aux_file)
5486 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5488 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5489 if -f $config_aux_dir . '/install.sh';
5491 # Preserve dist_common for later.
5492 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5496 ################################################################
5498 # Do any extra checking for GNU standards.
5499 sub check_gnu_standards
5501 if ($relative_dir eq '.')
5503 # In top level (or only) directory.
5504 require_file ("$am_file.am", GNU,
5505 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5507 # Accept one of these three licenses; default to COPYING.
5508 # Make sure we do not overwrite an existing license.
5510 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5518 require_file ("$am_file.am", GNU, 'COPYING')
5522 for my $opt ('no-installman', 'no-installinfo')
5524 msg ('error-gnu', option $opt,
5525 "option '$opt' disallowed by GNU standards")
5530 # Do any extra checking for GNITS standards.
5531 sub check_gnits_standards
5533 if ($relative_dir eq '.')
5535 # In top level (or only) directory.
5536 require_file ("$am_file.am", GNITS, 'THANKS');
5540 ################################################################
5542 # Functions to handle files of each language.
5544 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5545 # simple formula: Return value is LANG_SUBDIR if the resulting object
5546 # file should be in a subdir if the source file is, LANG_PROCESS if
5547 # file is to be dealt with, LANG_IGNORE otherwise.
5549 # Much of the actual processing is handled in
5550 # handle_single_transform. These functions exist so that
5551 # auxiliary information can be recorded for a later cleanup pass.
5552 # Note that the calls to these functions are computed, so don't bother
5553 # searching for their precise names in the source.
5555 # This is just a convenience function that can be used to determine
5556 # when a subdir object should be used.
5559 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5562 # Rewrite a single C source file.
5565 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5567 my $r = LANG_PROCESS;
5568 if (option 'subdir-objects')
5571 if ($directory && $directory ne '.')
5573 $base = $directory . '/' . $base;
5575 # libtool is always able to put the object at the proper place,
5576 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5577 msg_var ('portability', $var,
5578 "compiling '$base.c' in subdir requires "
5579 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5580 uniq_scope => US_GLOBAL,
5581 uniq_part => 'AM_PROG_CC_C_O subdir')
5582 unless $seen_cc_c_o || $obj eq '.lo';
5587 && $have_per_exec_flags
5588 && ! option 'subdir-objects'
5591 msg_var ('portability',
5592 $var, "compiling '$base.c' with per-target flags requires "
5593 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5594 uniq_scope => US_GLOBAL,
5595 uniq_part => 'AM_PROG_CC_C_O per-target')
5601 # Rewrite a single C++ source file.
5602 sub lang_cxx_rewrite
5604 return &lang_sub_obj;
5607 # Rewrite a single header file.
5608 sub lang_header_rewrite
5610 # Header files are simply ignored.
5614 # Rewrite a single Vala source file.
5615 sub lang_vala_rewrite
5617 my ($directory, $base, $ext) = @_;
5619 (my $newext = $ext) =~ s/vala$/c/;
5620 return (LANG_SUBDIR, $newext);
5623 # Rewrite a single yacc file.
5624 sub lang_yacc_rewrite
5626 my ($directory, $base, $ext) = @_;
5628 my $r = &lang_sub_obj;
5629 (my $newext = $ext) =~ tr/y/c/;
5630 return ($r, $newext);
5633 # Rewrite a single yacc++ file.
5634 sub lang_yaccxx_rewrite
5636 my ($directory, $base, $ext) = @_;
5638 my $r = &lang_sub_obj;
5639 (my $newext = $ext) =~ tr/y/c/;
5640 return ($r, $newext);
5643 # Rewrite a single lex file.
5644 sub lang_lex_rewrite
5646 my ($directory, $base, $ext) = @_;
5648 my $r = &lang_sub_obj;
5649 (my $newext = $ext) =~ tr/l/c/;
5650 return ($r, $newext);
5653 # Rewrite a single lex++ file.
5654 sub lang_lexxx_rewrite
5656 my ($directory, $base, $ext) = @_;
5658 my $r = &lang_sub_obj;
5659 (my $newext = $ext) =~ tr/l/c/;
5660 return ($r, $newext);
5663 # Rewrite a single assembly file.
5664 sub lang_asm_rewrite
5666 return &lang_sub_obj;
5669 # Rewrite a single preprocessed assembly file.
5670 sub lang_cppasm_rewrite
5672 return &lang_sub_obj;
5675 # Rewrite a single Fortran 77 file.
5676 sub lang_f77_rewrite
5678 return &lang_sub_obj;
5681 # Rewrite a single Fortran file.
5684 return &lang_sub_obj;
5687 # Rewrite a single preprocessed Fortran file.
5688 sub lang_ppfc_rewrite
5690 return &lang_sub_obj;
5693 # Rewrite a single preprocessed Fortran 77 file.
5694 sub lang_ppf77_rewrite
5696 return &lang_sub_obj;
5699 # Rewrite a single ratfor file.
5700 sub lang_ratfor_rewrite
5702 return &lang_sub_obj;
5705 # Rewrite a single Objective C file.
5706 sub lang_objc_rewrite
5708 return &lang_sub_obj;
5711 # Rewrite a single Objective C++ file.
5712 sub lang_objcxx_rewrite
5714 return &lang_sub_obj;
5717 # Rewrite a single Unified Parallel C file.
5718 sub lang_upc_rewrite
5720 return &lang_sub_obj;
5723 # Rewrite a single Java file.
5724 sub lang_java_rewrite
5729 # The lang_X_finish functions are called after all source file
5730 # processing is done. Each should handle defining rules for the
5731 # language, etc. A finish function is only called if a source file of
5732 # the appropriate type has been seen.
5734 sub lang_vala_finish_target ($$)
5736 my ($self, $name) = @_;
5738 my $derived = canonicalize ($name);
5739 my $var = var "${derived}_SOURCES";
5742 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5744 # For automake bug#11229.
5745 return unless @vala_sources;
5747 foreach my $vala_file (@vala_sources)
5749 my $c_file = $vala_file;
5750 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5752 $c_file = "\$(srcdir)/$c_file";
5753 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5754 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5755 . "\t\@if test -f \$@; then :; else \\\n"
5756 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5758 $clean_files{$c_file} = MAINTAINER_CLEAN;
5762 # Add rebuild rules for generated header and vapi files
5763 my $flags = var ($derived . '_VALAFLAGS');
5767 foreach my $flag ($flags->value_as_list_recursive)
5769 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5770 '--vapi', '--internal-vapi', '--gir')))
5772 my $headerfile = "\$(srcdir)/$flag";
5773 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5774 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5775 . "\t\@if test -f \$@; then :; else \\\n"
5776 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5779 # valac is not used when building from dist tarballs
5780 # distribute the generated files
5781 push_dist_common ($headerfile);
5782 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5788 my $compile = $self->compile;
5790 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5791 # rule into '${derived}_VALAFLAGS' if it exists.
5792 my $val = "${derived}_VALAFLAGS";
5793 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5796 # VALAFLAGS is a user variable (per GNU Standards),
5797 # it should not be overridden in the Makefile...
5798 check_user_variables 'VALAFLAGS';
5800 my $dirname = dirname ($name);
5802 # Only generate C code, do not run C compiler
5805 my $verbose = verbose_flag ('VALAC');
5806 my $silent = silent_flag ();
5807 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5810 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5811 # Since the C files generated from the vala sources depend on the
5812 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5813 # those of the C files generated by the valac invocation below (this is
5814 # especially important on systems with sub-second timestamp resolution).
5815 # Thus we need to create the stamp file *before* invoking valac, and to
5816 # move it to its final location only after valac has been invoked.
5817 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5818 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5819 "\t${silent}mv -f \$\@-t \$\@\n";
5821 push_dist_common ($stampfile);
5823 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5826 # Add output rules to invoke valac and create stamp file as a witness
5827 # to handle multiple outputs. This function is called after all source
5828 # file processing is done.
5829 sub lang_vala_finish
5833 foreach my $prog (keys %known_programs)
5835 lang_vala_finish_target ($self, $prog);
5838 while (my ($name) = each %known_libraries)
5840 lang_vala_finish_target ($self, $name);
5844 # The built .c files should be cleaned only on maintainer-clean
5845 # as the .c files are distributed. This function is called for each
5846 # .vala source file.
5847 sub lang_vala_target_hook
5849 my ($self, $aggregate, $output, $input, %transform) = @_;
5851 $clean_files{$output} = MAINTAINER_CLEAN;
5854 # This is a yacc helper which is called whenever we have decided to
5855 # compile a yacc file.
5856 sub lang_yacc_target_hook
5858 my ($self, $aggregate, $output, $input, %transform) = @_;
5860 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5861 # have to to generate special code.
5862 my $yflags_contains_minus_d = 0;
5864 foreach my $pfx ("", "${aggregate}_")
5866 my $yflagsvar = var ("${pfx}YFLAGS");
5867 next unless $yflagsvar;
5868 # We cannot work reliably with conditionally-defined YFLAGS.
5869 if ($yflagsvar->has_conditional_contents)
5871 msg_var ('unsupported', $yflagsvar,
5872 "'${pfx}YFLAGS' cannot have conditional contents");
5876 $yflags_contains_minus_d = 1
5877 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5881 if ($yflags_contains_minus_d)
5883 # Found a '-d' that applies to the compilation of this file.
5884 # Add a dependency for the generated header file, and arrange
5885 # for that file to be included in the distribution.
5887 # The extension of the output file (e.g., '.c' or '.cxx').
5888 # We'll need it to compute the name of the generated header file.
5889 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5891 # We know that a yacc input should be turned into either a C or
5892 # C++ output file. We depend on this fact (here and in yacc.am),
5893 # so check that it really holds.
5894 my $lang = $languages{$extension_map{$output_ext}};
5895 prog_error "invalid output name '$output' for yacc file '$input'"
5896 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5898 (my $header_ext = $output_ext) =~ s/c/h/g;
5899 # Quote $output_ext in the regexp, so that dots in it are taken
5900 # as literal dots, not as metacharacters.
5901 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5903 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5904 RULE_AUTOMAKE, TRUE,
5907 my $condstr = $cond->subst_string;
5909 "$condstr${header}: $output\n"
5910 # Recover from removal of $header
5911 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5912 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5914 # Distribute the generated file, unless its .y source was
5915 # listed in a nodist_ variable. (&handle_source_transform
5916 # will set DIST_SOURCE.)
5917 &push_dist_common ($header)
5918 if $transform{'DIST_SOURCE'};
5920 # The GNU rules say that yacc/lex output files should be removed
5921 # by maintainer-clean. However, if the files are not distributed,
5922 # then we want to remove them with "make clean"; otherwise,
5923 # "make distcheck" will fail.
5924 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5926 # See the comment above for $HEADER.
5927 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5930 # This is a lex helper which is called whenever we have decided to
5931 # compile a lex file.
5932 sub lang_lex_target_hook
5934 my ($self, $aggregate, $output, $input, %transform) = @_;
5935 # The GNU rules say that yacc/lex output files should be removed
5936 # by maintainer-clean. However, if the files are not distributed,
5937 # then we want to remove them with "make clean"; otherwise,
5938 # "make distcheck" will fail.
5939 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5942 # This is a helper for both lex and yacc.
5943 sub yacc_lex_finish_helper
5945 return if defined $language_scratch{'lex-yacc-done'};
5946 $language_scratch{'lex-yacc-done'} = 1;
5948 # FIXME: for now, no line number.
5949 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5950 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5953 sub lang_yacc_finish
5955 return if defined $language_scratch{'yacc-done'};
5956 $language_scratch{'yacc-done'} = 1;
5958 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5960 yacc_lex_finish_helper;
5966 return if defined $language_scratch{'lex-done'};
5967 $language_scratch{'lex-done'} = 1;
5969 yacc_lex_finish_helper;
5973 # Given a hash table of linker names, pick the name that has the most
5974 # precedence. This is lame, but something has to have global
5975 # knowledge in order to eliminate the conflict. Add more linkers as
5981 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5983 return $l if defined $linkers{$l};
5988 # Called to indicate that an extension was used.
5992 $extension_seen{$ext} = 1;
5995 # register_language (%ATTRIBUTE)
5996 # ------------------------------
5997 # Register a single language.
5998 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5999 sub register_language (%)
6004 $option{'autodep'} = 'no'
6005 unless defined $option{'autodep'};
6006 $option{'linker'} = ''
6007 unless defined $option{'linker'};
6008 $option{'flags'} = []
6009 unless defined $option{'flags'};
6010 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6011 unless defined $option{'output_extensions'};
6012 $option{'nodist_specific'} = 0
6013 unless defined $option{'nodist_specific'};
6015 my $lang = new Language (%option);
6018 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6019 $languages{$lang->name} = $lang;
6020 my $link = $lang->linker;
6023 if (exists $link_languages{$link})
6025 prog_error ("'$link' has different definitions in "
6026 . $lang->name . " and " . $link_languages{$link}->name)
6027 if $lang->link ne $link_languages{$link}->link;
6031 $link_languages{$link} = $lang;
6035 # Update the pattern of known extensions.
6036 accept_extensions (@{$lang->extensions});
6038 # Upate the $suffix_rule map.
6039 foreach my $suffix (@{$lang->extensions})
6041 foreach my $dest (&{$lang->output_extensions} ($suffix))
6043 register_suffix_rule (INTERNAL, $suffix, $dest);
6048 # derive_suffix ($EXT, $OBJ)
6049 # --------------------------
6050 # This function is used to find a path from a user-specified suffix $EXT
6051 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6052 sub derive_suffix ($$)
6054 my ($source_ext, $obj) = @_;
6056 while (! $extension_map{$source_ext}
6057 && $source_ext ne $obj
6058 && exists $suffix_rules->{$source_ext}
6059 && exists $suffix_rules->{$source_ext}{$obj})
6061 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6068 ################################################################
6070 # Pretty-print something and append to output_rules.
6071 sub pretty_print_rule
6073 $output_rules .= &makefile_wrap (@_);
6077 ################################################################
6080 ## -------------------------------- ##
6081 ## Handling the conditional stack. ##
6082 ## -------------------------------- ##
6086 # make_conditional_string ($NEGATE, $COND)
6087 # ----------------------------------------
6088 sub make_conditional_string ($$)
6090 my ($negate, $cond) = @_;
6091 $cond = "${cond}_TRUE"
6092 unless $cond =~ /^TRUE|FALSE$/;
6093 $cond = Automake::Condition::conditional_negate ($cond)
6099 my %_am_macro_for_cond =
6101 AMDEP => "one of the compiler tests\n"
6102 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6103 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6104 am__fastdepCC => 'AC_PROG_CC',
6105 am__fastdepCCAS => 'AM_PROG_AS',
6106 am__fastdepCXX => 'AC_PROG_CXX',
6107 am__fastdepGCJ => 'AM_PROG_GCJ',
6108 am__fastdepOBJC => 'AC_PROG_OBJC',
6109 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6110 am__fastdepUPC => 'AM_PROG_UPC'
6114 # cond_stack_if ($NEGATE, $COND, $WHERE)
6115 # --------------------------------------
6116 sub cond_stack_if ($$$)
6118 my ($negate, $cond, $where) = @_;
6120 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6122 my $text = "$cond does not appear in AM_CONDITIONAL";
6123 my $scope = US_LOCAL;
6124 if (exists $_am_macro_for_cond{$cond})
6126 my $mac = $_am_macro_for_cond{$cond};
6127 $text .= "\n The usual way to define '$cond' is to add ";
6128 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6129 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6130 # These warnings appear in Automake files (depend2.am),
6131 # so there is no need to display them more than once:
6134 error $where, $text, uniq_scope => $scope;
6137 push (@cond_stack, make_conditional_string ($negate, $cond));
6139 return new Automake::Condition (@cond_stack);
6144 # cond_stack_else ($NEGATE, $COND, $WHERE)
6145 # ----------------------------------------
6146 sub cond_stack_else ($$$)
6148 my ($negate, $cond, $where) = @_;
6152 error $where, "else without if";
6156 $cond_stack[$#cond_stack] =
6157 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6159 # If $COND is given, check against it.
6162 $cond = make_conditional_string ($negate, $cond);
6164 error ($where, "else reminder ($negate$cond) incompatible with "
6165 . "current conditional: $cond_stack[$#cond_stack]")
6166 if $cond_stack[$#cond_stack] ne $cond;
6169 return new Automake::Condition (@cond_stack);
6174 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6175 # -----------------------------------------
6176 sub cond_stack_endif ($$$)
6178 my ($negate, $cond, $where) = @_;
6183 error $where, "endif without if";
6187 # If $COND is given, check against it.
6190 $cond = make_conditional_string ($negate, $cond);
6192 error ($where, "endif reminder ($negate$cond) incompatible with "
6193 . "current conditional: $cond_stack[$#cond_stack]")
6194 if $cond_stack[$#cond_stack] ne $cond;
6199 return new Automake::Condition (@cond_stack);
6206 ## ------------------------ ##
6207 ## Handling the variables. ##
6208 ## ------------------------ ##
6211 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6212 # -----------------------------------------------------
6213 # Like define_variable, but the value is a list, and the variable may
6214 # be defined conditionally. The second argument is the condition
6215 # under which the value should be defined; this should be the empty
6216 # string to define the variable unconditionally. The third argument
6217 # is a list holding the values to use for the variable. The value is
6218 # pretty printed in the output file.
6219 sub define_pretty_variable ($$$@)
6221 my ($var, $cond, $where, @value) = @_;
6223 if (! vardef ($var, $cond))
6225 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6226 '', $where, VAR_PRETTY);
6227 rvar ($var)->rdef ($cond)->set_seen;
6232 # define_variable ($VAR, $VALUE, $WHERE)
6233 # --------------------------------------
6234 # Define a new Automake Makefile variable VAR to VALUE, but only if
6235 # not already defined.
6236 sub define_variable ($$$)
6238 my ($var, $value, $where) = @_;
6239 define_pretty_variable ($var, TRUE, $where, $value);
6243 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6244 # ------------------------------------------------------------
6245 # Define the $VAR which content is the list of file names composed of
6246 # a @BASENAME and the $EXTENSION.
6247 sub define_files_variable ($\@$$)
6249 my ($var, $basename, $extension, $where) = @_;
6250 define_variable ($var,
6251 join (' ', map { "$_.$extension" } @$basename),
6256 # Like define_variable, but define a variable to be the configure
6257 # substitution by the same name.
6258 sub define_configure_variable ($)
6261 # Some variables we do not want to output. For instance it
6262 # would be a bad idea to output `U = @U@` when `@U@` can be
6263 # substituted as `\`.
6264 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6265 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6266 '', $configure_vars{$var}, $pretty);
6270 # define_compiler_variable ($LANG)
6271 # --------------------------------
6272 # Define a compiler variable. We also handle defining the 'LT'
6273 # version of the command when using libtool.
6274 sub define_compiler_variable ($)
6278 my ($var, $value) = ($lang->compiler, $lang->compile);
6279 my $libtool_tag = '';
6280 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6281 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6282 &define_variable ($var, $value, INTERNAL);
6283 if (var ('LIBTOOL'))
6285 my $verbose = define_verbose_libtool ();
6286 &define_variable ("LT$var",
6287 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6288 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6291 define_verbose_tagvar ($lang->ccer || 'GEN');
6295 # define_linker_variable ($LANG)
6296 # ------------------------------
6297 # Define linker variables.
6298 sub define_linker_variable ($)
6302 my $libtool_tag = '';
6303 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6304 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6306 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6307 # CCLINK = $(CCLD) blah blah...
6309 if (var ('LIBTOOL'))
6311 my $verbose = define_verbose_libtool ();
6312 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6313 . "\$(LIBTOOLFLAGS) --mode=link ";
6315 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6316 &define_variable ($lang->compiler, $lang);
6317 &define_verbose_tagvar ($lang->lder || 'GEN');
6320 sub define_per_target_linker_variable ($$)
6322 my ($linker, $target) = @_;
6324 # If the user wrote a custom link command, we don't define ours.
6325 return "${target}_LINK"
6326 if set_seen "${target}_LINK";
6328 my $xlink = $linker ? $linker : 'LINK';
6330 my $lang = $link_languages{$xlink};
6331 prog_error "Unknown language for linker variable '$xlink'"
6334 my $link_command = $lang->link;
6337 my $libtool_tag = '';
6338 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6339 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6341 my $verbose = define_verbose_libtool ();
6343 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6344 . "--mode=link " . $link_command;
6347 # Rewrite each occurrence of 'AM_$flag' in the link
6348 # command into '${derived}_$flag' if it exists.
6349 my $orig_command = $link_command;
6350 my @flags = (@{$lang->flags}, 'LDFLAGS');
6351 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6352 for my $flag (@flags)
6354 my $val = "${target}_$flag";
6355 $link_command =~ s/\(AM_$flag\)/\($val\)/
6359 # If the computed command is the same as the generic command, use
6360 # the command linker variable.
6361 return ($lang->linker, $lang->lder)
6362 if $link_command eq $orig_command;
6364 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6365 return ("${target}_LINK", $lang->lder);
6368 ################################################################
6370 # &check_trailing_slash ($WHERE, $LINE)
6371 # -------------------------------------
6372 # Return 1 iff $LINE ends with a slash.
6373 # Might modify $LINE.
6374 sub check_trailing_slash ($\$)
6376 my ($where, $line) = @_;
6378 # Ignore '##' lines.
6379 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6381 # Catch and fix a common error.
6382 msg "syntax", $where, "whitespace following trailing backslash"
6383 if $$line =~ s/\\\s+\n$/\\\n/;
6385 return $$line =~ /\\$/;
6389 # &read_am_file ($AMFILE, $WHERE)
6390 # -------------------------------
6391 # Read Makefile.am and set up %contents. Simultaneously copy lines
6392 # from Makefile.am into $output_trailer, or define variables as
6393 # appropriate. NOTE we put rules in the trailer section. We want
6394 # user rules to come after our generated stuff.
6395 sub read_am_file ($$)
6397 my ($amfile, $where) = @_;
6399 my $am_file = new Automake::XFile ("< $amfile");
6400 verb "reading $amfile";
6402 # Keep track of the youngest output dependency.
6403 my $mtime = mtime $amfile;
6404 $output_deps_greatest_timestamp = $mtime
6405 if $mtime > $output_deps_greatest_timestamp;
6411 my $var_look = VAR_ASIS;
6413 use constant IN_VAR_DEF => 0;
6414 use constant IN_RULE_DEF => 1;
6415 use constant IN_COMMENT => 2;
6416 my $prev_state = IN_RULE_DEF;
6418 while ($_ = $am_file->getline)
6420 $where->set ("$amfile:$.");
6421 if (/$IGNORE_PATTERN/o)
6423 # Merely delete comments beginning with two hashes.
6425 elsif (/$WHITE_PATTERN/o)
6427 error $where, "blank line following trailing backslash"
6429 # Stick a single white line before the incoming macro or rule.
6432 # Flush all comments seen so far.
6435 $output_vars .= $comment;
6439 elsif (/$COMMENT_PATTERN/o)
6441 # Stick comments before the incoming macro or rule. Make
6442 # sure a blank line precedes the first block of comments.
6443 $spacing = "\n" unless $blank;
6445 $comment .= $spacing . $_;
6447 $prev_state = IN_COMMENT;
6453 $saw_bk = check_trailing_slash ($where, $_);
6456 # We save the conditional stack on entry, and then check to make
6457 # sure it is the same on exit. This lets us conditionally include
6459 my @saved_cond_stack = @cond_stack;
6460 my $cond = new Automake::Condition (@cond_stack);
6462 my $last_var_name = '';
6463 my $last_var_type = '';
6464 my $last_var_value = '';
6466 # FIXME: shouldn't use $_ in this loop; it is too big.
6469 $where->set ("$amfile:$.");
6471 # Make sure the line is \n-terminated.
6475 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6476 # used by users. @MAINT@ is an anachronism now.
6477 $_ =~ s/\@MAINT\@//g
6478 unless $seen_maint_mode;
6480 my $new_saw_bk = check_trailing_slash ($where, $_);
6482 if (/$IGNORE_PATTERN/o)
6484 # Merely delete comments beginning with two hashes.
6486 # Keep any backslash from the previous line.
6487 $new_saw_bk = $saw_bk;
6489 elsif (/$WHITE_PATTERN/o)
6491 # Stick a single white line before the incoming macro or rule.
6493 error $where, "blank line following trailing backslash"
6496 elsif (/$COMMENT_PATTERN/o)
6498 error $where, "comment following trailing backslash"
6499 if $saw_bk && $prev_state != IN_COMMENT;
6501 # Stick comments before the incoming macro or rule.
6502 $comment .= $spacing . $_;
6504 $prev_state = IN_COMMENT;
6508 if ($prev_state == IN_RULE_DEF)
6510 my $cond = new Automake::Condition @cond_stack;
6511 $output_trailer .= $cond->subst_string;
6512 $output_trailer .= $_;
6514 elsif ($prev_state == IN_COMMENT)
6516 # If the line doesn't start with a '#', add it.
6517 # We do this because a continued comment like
6521 # is not portable. BSD make doesn't honor
6522 # escaped newlines in comments.
6524 $comment .= $spacing . $_;
6526 else # $prev_state == IN_VAR_DEF
6528 $last_var_value .= ' '
6529 unless $last_var_value =~ /\s$/;
6530 $last_var_value .= $_;
6534 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6535 $last_var_type, $cond,
6536 $last_var_value, $comment,
6537 $last_where, VAR_ASIS)
6539 $comment = $spacing = '';
6544 elsif (/$IF_PATTERN/o)
6546 $cond = cond_stack_if ($1, $2, $where);
6548 elsif (/$ELSE_PATTERN/o)
6550 $cond = cond_stack_else ($1, $2, $where);
6552 elsif (/$ENDIF_PATTERN/o)
6554 $cond = cond_stack_endif ($1, $2, $where);
6557 elsif (/$RULE_PATTERN/o)
6560 $prev_state = IN_RULE_DEF;
6562 # For now we have to output all definitions of user rules
6563 # and can't diagnose duplicates (see the comment in
6564 # Automake::Rule::define). So we go on and ignore the return value.
6565 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6567 check_variable_expansions ($_, $where);
6569 $output_trailer .= $comment . $spacing;
6570 my $cond = new Automake::Condition @cond_stack;
6571 $output_trailer .= $cond->subst_string;
6572 $output_trailer .= $_;
6573 $comment = $spacing = '';
6575 elsif (/$ASSIGNMENT_PATTERN/o)
6577 # Found a macro definition.
6578 $prev_state = IN_VAR_DEF;
6579 $last_var_name = $1;
6580 $last_var_type = $2;
6581 $last_var_value = $3;
6582 $last_where = $where->clone;
6583 if ($3 ne '' && substr ($3, -1) eq "\\")
6585 # We preserve the '\' because otherwise the long lines
6586 # that are generated will be truncated by broken
6588 $last_var_value = $3 . "\n";
6590 # Normally we try to output variable definitions in the
6591 # same format they were input. However, POSIX compliant
6592 # systems are not required to support lines longer than
6593 # 2048 bytes (most notably, some sed implementation are
6594 # limited to 4000 bytes, and sed is used by config.status
6595 # to rewrite Makefile.in into Makefile). Moreover nobody
6596 # would really write such long lines by hand since it is
6597 # hardly maintainable. So if a line is longer that 1000
6598 # bytes (an arbitrary limit), assume it has been
6599 # automatically generated by some tools, and flatten the
6600 # variable definition. Otherwise, keep the variable as it
6602 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6606 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6607 $last_var_type, $cond,
6608 $last_var_value, $comment,
6609 $last_where, $var_look)
6611 $comment = $spacing = '';
6612 $var_look = VAR_ASIS;
6615 elsif (/$INCLUDE_PATTERN/o)
6619 if ($path =~ s/^\$\(top_srcdir\)\///)
6621 push (@include_stack, "\$\(top_srcdir\)/$path");
6622 # Distribute any included file.
6624 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6625 # otherwise OSF make will implicitly copy the included
6626 # file in the build tree during "make distdir" to satisfy
6628 # (subdircond2.test and subdircond3.test will fail.)
6629 push_dist_common ("\$\(top_srcdir\)/$path");
6633 $path =~ s/\$\(srcdir\)\///;
6634 push (@include_stack, "\$\(srcdir\)/$path");
6635 # Always use the $(srcdir) prefix in DIST_COMMON,
6636 # otherwise OSF make will implicitly copy the included
6637 # file in the build tree during "make distdir" to satisfy
6639 # (subdircond2.test and subdircond3.test will fail.)
6640 push_dist_common ("\$\(srcdir\)/$path");
6641 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6643 $where->push_context ("'$path' included from here");
6644 &read_am_file ($path, $where);
6645 $where->pop_context;
6649 # This isn't an error; it is probably a continued rule.
6650 # In fact, this is what we assume.
6651 $prev_state = IN_RULE_DEF;
6652 check_variable_expansions ($_, $where);
6653 $output_trailer .= $comment . $spacing;
6654 my $cond = new Automake::Condition @cond_stack;
6655 $output_trailer .= $cond->subst_string;
6656 $output_trailer .= $_;
6657 $comment = $spacing = '';
6658 error $where, "'#' comment at start of rule is unportable"
6659 if $_ =~ /^\t\s*\#/;
6662 $saw_bk = $new_saw_bk;
6663 $_ = $am_file->getline;
6666 $output_trailer .= $comment;
6668 error ($where, "trailing backslash on last line")
6671 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6672 : "too many conditionals closed in include file"))
6673 if "@saved_cond_stack" ne "@cond_stack";
6677 # define_standard_variables ()
6678 # ----------------------------
6679 # A helper for read_main_am_file which initializes configure variables
6680 # and variables from header-vars.am.
6681 sub define_standard_variables
6683 my $saved_output_vars = $output_vars;
6684 my ($comments, undef, $rules) =
6685 file_contents_internal (1, "$libdir/am/header-vars.am",
6686 new Automake::Location);
6688 foreach my $var (sort keys %configure_vars)
6690 &define_configure_variable ($var);
6693 $output_vars .= $comments . $rules;
6696 # Read main am file.
6697 sub read_main_am_file ($$)
6699 my ($amfile, $infile) = @_;
6701 # This supports the strange variable tricks we are about to play.
6702 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6703 if (scalar (variables) > 0);
6705 # Generate copyright header for generated Makefile.in.
6706 # We do discard the output of predefined variables, handled below.
6707 $output_vars = ("# " . basename ($infile) . " generated by automake "
6708 . $VERSION . " from " . basename ($amfile) . ".\n");
6709 $output_vars .= '# ' . subst ('configure_input') . "\n";
6710 $output_vars .= $gen_copyright;
6712 # We want to predefine as many variables as possible. This lets
6713 # the user set them with '+=' in Makefile.am.
6714 &define_standard_variables;
6716 # Read user file, which might override some of our values.
6717 &read_am_file ($amfile, new Automake::Location);
6722 ################################################################
6725 # &flatten ($STRING)
6726 # ------------------
6727 # Flatten the $STRING and return the result.
6741 # transform_token ($TOKEN, \%PAIRS, $KEY)
6742 # =======================================
6743 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6744 # (which should be ?KEY? or any of the special %% requests)..
6745 sub transform_token ($$$)
6747 my ($token, $transform, $key) = @_;
6748 my $res = $transform->{$key};
6749 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6754 # transform ($TOKEN, \%PAIRS)
6755 # ===========================
6756 # If ($TOKEN, $VAL) is in %PAIRS:
6757 # - replaces %KEY% with $VAL,
6758 # - enables/disables ?KEY? and ?!KEY?,
6759 # - replaces %?KEY% with TRUE or FALSE.
6762 my ($token, $transform) = @_;
6765 # Must be before the following pattern to exclude the case
6766 # when there is neither IFTRUE nor IFFALSE.
6767 if ($token =~ /^%([\w\-]+)%$/)
6769 return transform_token ($token, $transform, $1);
6772 elsif ($token =~ /^%\?([\w\-]+)%$/)
6774 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6777 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6779 my $neg = ($1 eq '!') ? 1 : 0;
6780 my $val = transform_token ($token, $transform, $2);
6781 return (!!$val == $neg) ? '##%' : '';
6785 prog_error "Unknown request format: $token";
6790 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6791 # -----------------------------------------
6792 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6793 # No extra parsing or post-processing is done (i.e., recognition of
6794 # rules declaration or of make variables definitions).
6795 sub preprocess_file ($%)
6797 my ($file, %transform) = @_;
6799 # Complete %transform with global options.
6800 # Note that %transform goes last, so it overrides global options.
6801 %transform = ( 'MAINTAINER-MODE'
6802 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6804 'XZ' => !! option 'dist-xz',
6805 'LZMA' => !! option 'dist-lzma',
6806 'LZIP' => !! option 'dist-lzip',
6807 'BZIP2' => !! option 'dist-bzip2',
6808 'COMPRESS' => !! option 'dist-tarZ',
6809 'GZIP' => ! option 'no-dist-gzip',
6810 'SHAR' => !! option 'dist-shar',
6811 'ZIP' => !! option 'dist-zip',
6813 'INSTALL-INFO' => ! option 'no-installinfo',
6814 'INSTALL-MAN' => ! option 'no-installman',
6815 'HAVE-MANS' => !! var ('MANS'),
6816 'CK-NEWS' => !! option 'check-news',
6818 'SUBDIRS' => !! var ('SUBDIRS'),
6819 'TOPDIR_P' => $relative_dir eq '.',
6821 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6822 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6823 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6825 'LIBTOOL' => !! var ('LIBTOOL'),
6829 if (! defined ($_ = $am_file_cache{$file}))
6831 verb "reading $file";
6832 # Swallow the whole file.
6833 my $fc_file = new Automake::XFile "< $file";
6834 my $saved_dollar_slash = $/;
6836 $_ = $fc_file->getline;
6837 $/ = $saved_dollar_slash;
6839 # Remove ##-comments.
6840 # Besides we don't need more than two consecutive new-lines.
6841 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6842 # Remember the contents of the just-read file.
6843 $am_file_cache{$file} = $_;
6846 # Substitute Automake template tokens.
6847 s/(?: % \?? [\w\-]+ %
6849 )/transform($&, \%transform)/gex;
6850 # transform() may have added some ##%-comments to strip.
6851 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6852 # ####### and do not remove the latter.)
6853 s/^[ \t]*(?:##%)+.*\n//gm;
6860 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6861 # ------------------------------------------
6862 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6864 sub make_paragraphs ($%)
6866 my ($file, %transform) = @_;
6867 $transform{FIRST} = !$transformed_files{$file};
6868 $transformed_files{$file} = 1;
6870 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6873 while (defined ($_ = shift @lines))
6876 # If we are a rule, eat as long as we start with a tab.
6877 if (/$RULE_PATTERN/smo)
6879 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6881 $paragraph .= "\n$_";
6883 unshift (@lines, $_);
6886 # If we are a comments, eat as much comments as you can.
6887 elsif (/$COMMENT_PATTERN/smo)
6889 while (defined ($_ = shift @lines)
6890 && $_ =~ /$COMMENT_PATTERN/smo)
6892 $paragraph .= "\n$_";
6894 unshift (@lines, $_);
6897 push @res, $paragraph;
6905 # ($COMMENT, $VARIABLES, $RULES)
6906 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6907 # -------------------------------------------------------------
6908 # Return contents of a file from $libdir/am, automatically skipping
6909 # macros or rules which are already known. $IS_AM iff the caller is
6910 # reading an Automake file (as opposed to the user's Makefile.am).
6911 sub file_contents_internal ($$$%)
6913 my ($is_am, $file, $where, %transform) = @_;
6915 $where->set ($file);
6917 my $result_vars = '';
6918 my $result_rules = '';
6922 # The following flags are used to track rules spanning across
6923 # multiple paragraphs.
6924 my $is_rule = 0; # 1 if we are processing a rule.
6925 my $discard_rule = 0; # 1 if the current rule should not be output.
6927 # We save the conditional stack on entry, and then check to make
6928 # sure it is the same on exit. This lets us conditionally include
6930 my @saved_cond_stack = @cond_stack;
6931 my $cond = new Automake::Condition (@cond_stack);
6933 foreach (make_paragraphs ($file, %transform))
6935 # FIXME: no line number available.
6936 $where->set ($file);
6939 error $where, "blank line following trailing backslash:\n$_"
6941 error $where, "comment following trailing backslash:\n$_"
6947 # Stick empty line before the incoming macro or rule.
6950 elsif (/$COMMENT_PATTERN/mso)
6953 # Stick comments before the incoming macro or rule.
6957 # Handle inclusion of other files.
6958 elsif (/$INCLUDE_PATTERN/o)
6962 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6963 $where->push_context ("'$file' included from here");
6965 my ($com, $vars, $rules)
6966 = file_contents_internal ($is_am, $file, $where, %transform);
6967 $where->pop_context;
6969 $result_vars .= $vars;
6970 $result_rules .= $rules;
6974 # Handling the conditionals.
6975 elsif (/$IF_PATTERN/o)
6977 $cond = cond_stack_if ($1, $2, $file);
6979 elsif (/$ELSE_PATTERN/o)
6981 $cond = cond_stack_else ($1, $2, $file);
6983 elsif (/$ENDIF_PATTERN/o)
6985 $cond = cond_stack_endif ($1, $2, $file);
6989 elsif (/$RULE_PATTERN/mso)
6993 # Separate relationship from optional actions: the first
6994 # `new-line tab" not preceded by backslash (continuation
6997 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6998 my ($relationship, $actions) = ($1, $2 || '');
7000 # Separate targets from dependencies: the first colon.
7001 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7002 my ($targets, $dependencies) = ($1, $2);
7003 # Remove the escaped new lines.
7004 # I don't know why, but I have to use a tmp $flat_deps.
7005 my $flat_deps = &flatten ($dependencies);
7006 my @deps = split (' ', $flat_deps);
7008 foreach (split (' ', $targets))
7010 # FIXME: 1. We are not robust to people defining several targets
7011 # at once, only some of them being in %dependencies. The
7012 # actions from the targets in %dependencies are usually generated
7013 # from the content of %actions, but if some targets in $targets
7014 # are not in %dependencies the ELSE branch will output
7015 # a rule for all $targets (i.e. the targets which are both
7016 # in %dependencies and $targets will have two rules).
7018 # FIXME: 2. The logic here is not able to output a
7019 # multi-paragraph rule several time (e.g. for each condition
7020 # it is defined for) because it only knows the first paragraph.
7022 # FIXME: 3. We are not robust to people defining a subset
7023 # of a previously defined "multiple-target" rule. E.g.
7024 # 'foo:' after 'foo bar:'.
7026 # Output only if not in FALSE.
7027 if (defined $dependencies{$_} && $cond != FALSE)
7029 &depend ($_, @deps);
7030 register_action ($_, $actions);
7034 # Free-lance dependency. Output the rule for all the
7035 # targets instead of one by one.
7036 my @undefined_conds =
7037 Automake::Rule::define ($targets, $file,
7038 $is_am ? RULE_AUTOMAKE : RULE_USER,
7040 for my $undefined_cond (@undefined_conds)
7042 my $condparagraph = $paragraph;
7043 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7044 $result_rules .= "$spacing$comment$condparagraph\n";
7046 if (scalar @undefined_conds == 0)
7048 # Remember to discard next paragraphs
7049 # if they belong to this rule.
7050 # (but see also FIXME: #2 above.)
7053 $comment = $spacing = '';
7059 elsif (/$ASSIGNMENT_PATTERN/mso)
7061 my ($var, $type, $val) = ($1, $2, $3);
7062 error $where, "variable '$var' with trailing backslash"
7067 Automake::Variable::define ($var,
7068 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7069 $type, $cond, $val, $comment, $where,
7073 $comment = $spacing = '';
7077 # This isn't an error; it is probably some tokens which
7078 # configure is supposed to replace, such as '@SET-MAKE@',
7079 # or some part of a rule cut by an if/endif.
7080 if (! $cond->false && ! ($is_rule && $discard_rule))
7082 s/^/$cond->subst_string/gme;
7083 $result_rules .= "$spacing$comment$_\n";
7085 $comment = $spacing = '';
7089 error ($where, @cond_stack ?
7090 "unterminated conditionals: @cond_stack" :
7091 "too many conditionals closed in include file")
7092 if "@saved_cond_stack" ne "@cond_stack";
7094 return ($comment, $result_vars, $result_rules);
7099 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7100 # ------------------------------------------------
7101 # Return contents of a file from $libdir/am, automatically skipping
7102 # macros or rules which are already known.
7103 sub file_contents ($$%)
7105 my ($basename, $where, %transform) = @_;
7106 my ($comments, $variables, $rules) =
7107 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7109 return "$comments$variables$rules";
7114 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7115 # -----------------------------------------------------
7116 # Find all variable prefixes that are used for install directories. A
7117 # prefix 'zar' qualifies iff:
7119 # * 'zardir' is a variable.
7120 # * 'zar_PRIMARY' is a variable.
7122 # As a side effect, it looks for misspellings. It is an error to have
7123 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7124 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7125 # of the same name (with "dir" appended) exists. For instance, if the
7126 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7127 # This is to provide a little extra flexibility in those cases which
7129 sub am_primary_prefixes ($$@)
7131 my ($primary, $can_dist, @prefixes) = @_;
7134 my %valid = map { $_ => 0 } @prefixes;
7135 $valid{'EXTRA'} = 0;
7136 foreach my $var (variables $primary)
7138 # Automake is allowed to define variables that look like primaries
7139 # but which aren't. E.g. INSTALL_sh_DATA.
7140 # Autoconf can also define variables like INSTALL_DATA, so
7141 # ignore all configure variables (at least those which are not
7142 # redefined in Makefile.am).
7143 # FIXME: We should make sure that these variables are not
7144 # conditionally defined (or else adjust the condition below).
7145 my $def = $var->def (TRUE);
7146 next if $def && $def->owner != VAR_MAKEFILE;
7148 my $varname = $var->name;
7150 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7152 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7153 if ($dist ne '' && ! $can_dist)
7156 "invalid variable '$varname': 'dist' is forbidden");
7158 # Standard directories must be explicitly allowed.
7159 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7162 "'${X}dir' is not a legitimate directory " .
7165 # A not explicitly valid directory is allowed if Xdir is defined.
7166 elsif (! defined $valid{$X} &&
7167 $var->requires_variables ("'$varname' is used", "${X}dir"))
7169 # Nothing to do. Any error message has been output
7170 # by $var->requires_variables.
7174 # Ensure all extended prefixes are actually used.
7175 $valid{"$base$dist$X"} = 1;
7180 prog_error "unexpected variable name: $varname";
7184 # Return only those which are actually defined.
7185 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7189 # Handle 'where_HOW' variable magic. Does all lookups, generates
7190 # install code, and possibly generates code to define the primary
7191 # variable. The first argument is the name of the .am file to munge,
7192 # the second argument is the primary variable (e.g. HEADERS), and all
7193 # subsequent arguments are possible installation locations.
7195 # Returns list of [$location, $value] pairs, where
7196 # $value's are the values in all where_HOW variable, and $location
7197 # there associated location (the place here their parent variables were
7200 # FIXME: this should be rewritten to be cleaner. It should be broken
7201 # up into multiple functions.
7203 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7210 my $default_dist = 0;
7213 if ($args[0] eq '-noextra')
7217 elsif ($args[0] eq '-candist')
7221 elsif ($args[0] eq '-defaultdist')
7226 elsif ($args[0] !~ /^-/)
7233 my ($file, $primary, @prefix) = @args;
7235 # Now that configure substitutions are allowed in where_HOW
7236 # variables, it is an error to actually define the primary. We
7237 # allow 'JAVA', as it is customarily used to mean the Java
7238 # interpreter. This is but one of several Java hacks. Similarly,
7239 # 'PYTHON' is customarily used to mean the Python interpreter.
7240 reject_var $primary, "'$primary' is an anachronism"
7241 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7243 # Get the prefixes which are valid and actually used.
7244 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7246 # If a primary includes a configure substitution, then the EXTRA_
7247 # form is required. Otherwise we can't properly do our job.
7253 foreach my $X (@prefix)
7255 my $nodir_name = $X;
7256 my $one_name = $X . '_' . $primary;
7257 my $one_var = var $one_name;
7259 my $strip_subdir = 1;
7260 # If subdir prefix should be preserved, do so.
7261 if ($nodir_name =~ /^nobase_/)
7264 $nodir_name =~ s/^nobase_//;
7267 # If files should be distributed, do so.
7271 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7272 || (! $default_dist && $nodir_name =~ /^dist_/));
7273 $nodir_name =~ s/^(dist|nodist)_//;
7277 # Use the location of the currently processed variable.
7278 # We are not processing a particular condition, so pick the first
7280 my $tmpcond = $one_var->conditions->one_cond;
7281 my $where = $one_var->rdef ($tmpcond)->location->clone;
7283 # Append actual contents of where_PRIMARY variable to
7284 # @result, skipping @substitutions@.
7285 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7287 my ($loc, $value) = @$locvals;
7288 # Skip configure substitutions.
7289 if ($value =~ /^\@.*\@$/)
7291 if ($nodir_name eq 'EXTRA')
7294 "'$one_name' contains configure substitution, "
7297 # Check here to make sure variables defined in
7298 # configure.ac do not imply that EXTRA_PRIMARY
7300 elsif (! defined $configure_vars{$one_name})
7302 $require_extra = $one_name
7308 # Strip any $(EXEEXT) suffix the user might have added, or this
7309 # will confuse &handle_source_transform and &check_canonical_spelling.
7310 # We'll add $(EXEEXT) back later anyway.
7311 # Do it here rather than in handle_programs so the uniquifying at the
7312 # end of this function works.
7313 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7314 if $primary eq 'PROGRAMS';
7316 push (@result, $locvals);
7319 # A blatant hack: we rewrite each _PROGRAMS primary to include
7321 append_exeext { 1 } $one_name
7322 if $primary eq 'PROGRAMS';
7323 # "EXTRA" shouldn't be used when generating clean targets,
7324 # all, or install targets. We used to warn if EXTRA_FOO was
7325 # defined uselessly, but this was annoying.
7327 if $nodir_name eq 'EXTRA';
7329 if ($nodir_name eq 'check')
7331 push (@check, '$(' . $one_name . ')');
7335 push (@used, '$(' . $one_name . ')');
7338 # Is this to be installed?
7339 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7341 # If so, with install-exec? (or install-data?).
7342 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7344 my $check_options_p = $install_p && !! option 'std-options';
7346 # Use the location of the currently processed variable as context.
7347 $where->push_context ("while processing '$one_name'");
7349 # The variable containing all files to distribute.
7350 my $distvar = "\$($one_name)";
7351 $distvar = shadow_unconditionally ($one_name, $where)
7352 if ($dist_p && $one_var->has_conditional_contents);
7354 # Singular form of $PRIMARY.
7355 (my $one_primary = $primary) =~ s/S$//;
7356 $output_rules .= &file_contents ($file, $where,
7357 PRIMARY => $primary,
7358 ONE_PRIMARY => $one_primary,
7360 NDIR => $nodir_name,
7361 BASE => $strip_subdir,
7364 INSTALL => $install_p,
7366 DISTVAR => $distvar,
7367 'CK-OPTS' => $check_options_p);
7370 # The JAVA variable is used as the name of the Java interpreter.
7371 # The PYTHON variable is used as the name of the Python interpreter.
7372 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7375 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7376 $output_vars .= "\n";
7379 err_var ($require_extra,
7380 "'$require_extra' contains configure substitution,\n"
7381 . "but 'EXTRA_$primary' not defined")
7382 if ($require_extra && ! var ('EXTRA_' . $primary));
7384 # Push here because PRIMARY might be configure time determined.
7385 push (@all, '$(' . $primary . ')')
7386 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7388 # Make the result unique. This lets the user use conditionals in
7389 # a natural way, but still lets us program lazily -- we don't have
7390 # to worry about handling a particular object more than once.
7391 # We will keep only one location per object.
7393 for my $pair (@result)
7395 my ($loc, $val) = @$pair;
7396 $result{$val} = $loc;
7398 my @l = sort keys %result;
7399 return map { [$result{$_}->clone, $_] } @l;
7403 ################################################################
7405 # Each key in this hash is the name of a directory holding a
7406 # Makefile.in. These variables are local to 'is_make_dir'.
7408 my $make_dirs_set = 0;
7413 if (! $make_dirs_set)
7415 foreach my $iter (@configure_input_files)
7417 $make_dirs{dirname ($iter)} = 1;
7419 # We also want to notice Makefile.in's.
7420 foreach my $iter (@other_input_files)
7422 if ($iter =~ /Makefile\.in$/)
7424 $make_dirs{dirname ($iter)} = 1;
7429 return defined $make_dirs{$dir};
7432 ################################################################
7434 # Find the aux dir. This should match the algorithm used by
7435 # ./configure. (See the Autoconf documentation for for
7436 # AC_CONFIG_AUX_DIR.)
7437 sub locate_aux_dir ()
7439 if (! $config_aux_dir_set_in_configure_ac)
7441 # The default auxiliary directory is the first
7442 # of ., .., or ../.. that contains install-sh.
7443 # Assume . if install-sh doesn't exist yet.
7444 for my $dir (qw (. .. ../..))
7446 if (-f "$dir/install-sh")
7448 $config_aux_dir = $dir;
7452 $config_aux_dir = '.' unless $config_aux_dir;
7454 # Avoid unsightly '/.'s.
7455 $am_config_aux_dir =
7456 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7457 $am_config_aux_dir =~ s,/*$,,;
7461 # &push_required_file ($DIR, $FILE, $FULLFILE)
7462 # --------------------------------------------------
7463 # Push the given file onto DIST_COMMON.
7464 sub push_required_file
7466 my ($dir, $file, $fullfile) = @_;
7468 # If the file to be distributed is in the same directory of the
7469 # currently processed Makefile.am, then we want to distribute it
7470 # from this same Makefile.am.
7471 if ($dir eq $relative_dir)
7473 push_dist_common ($file);
7475 # This is needed to allow a construct in a non-top-level Makefile.am
7476 # to require a file in the build-aux directory (see at least the test
7477 # script 'test-driver-is-distributed.test'). This is related to the
7478 # automake bug#9546. Note that the use of $config_aux_dir instead
7479 # of $am_config_aux_dir here is deliberate and necessary.
7480 elsif ($dir eq $config_aux_dir)
7482 push_dist_common ("$am_config_aux_dir/$file");
7484 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7485 # We probably need some refactoring of this function and its callers,
7486 # to have a more explicit and systematic handling of all the special
7487 # cases; but, since there are only two of them, this is low-priority
7489 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7491 # Avoid unsightly '/.'s.
7492 my $am_config_libobj_dir =
7494 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7495 $am_config_libobj_dir =~ s|/*$||;
7496 push_dist_common ("$am_config_libobj_dir/$file");
7498 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7500 # If we are doing the topmost directory, and the file is in a
7501 # subdir which does not have a Makefile, then we distribute it
7504 # If a required file is above the source tree, it is important
7505 # to prefix it with '$(srcdir)' so that no VPATH search is
7506 # performed. Otherwise problems occur with Make implementations
7507 # that rewrite and simplify rules whose dependencies are found in a
7508 # VPATH location. Here is an example with OSF1/Tru64 Make.
7520 # Dependency '../a' was found in 'sub/../a', but this make
7521 # implementation simplified it as 'a'. (Note that the sub/
7522 # directory does not even exist.)
7524 # This kind of VPATH rewriting seems hard to cancel. The
7525 # distdir.am hack against VPATH rewriting works only when no
7526 # simplification is done, i.e., for dependencies which are in
7527 # subdirectories, not in enclosing directories. Hence, in
7528 # the latter case we use a full path to make sure no VPATH
7530 $fullfile = '$(srcdir)/' . $fullfile
7531 if $dir =~ m,^\.\.(?:$|/),;
7533 push_dist_common ($fullfile);
7537 prog_error "a Makefile in relative directory $relative_dir " .
7538 "can't add files in directory $dir to DIST_COMMON";
7543 # If a file name appears as a key in this hash, then it has already
7544 # been checked for. This allows us not to report the same error more
7546 my %required_file_not_found = ();
7548 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7549 # --------------------------------------------------------
7550 # Verify that the file must exist in $DIRECTORY, or install it.
7551 sub required_file_check_or_copy ($$$)
7553 my ($where, $dir, $file) = @_;
7555 my $fullfile = "$dir/$file";
7557 my $dangling_sym = 0;
7559 if (-l $fullfile && ! -f $fullfile)
7563 elsif (dir_has_case_matching_file ($dir, $file))
7568 # '--force-missing' only has an effect if '--add-missing' is
7571 if $found_it && (! $add_missing || ! $force_missing);
7573 # If we've already looked for it, we're done. You might
7574 # wonder why we don't do this before searching for the
7575 # file. If we do that, then something like
7576 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7580 return if defined $required_file_not_found{$fullfile};
7581 $required_file_not_found{$fullfile} = 1;
7583 if ($dangling_sym && $add_missing)
7592 # Only install missing files according to our desired
7594 my $message = "required file '$fullfile' not found";
7597 if (-f "$libdir/$file")
7601 # Install the missing file. Symlink if we
7602 # can, copy if we must. Note: delete the file
7603 # first, in case it is a dangling symlink.
7604 $message = "installing '$fullfile'";
7606 # The license file should not be volatile.
7607 if ($file eq "COPYING")
7609 $message .= " using GNU General Public License v3 file";
7610 $trailer2 = "\n Consider adding the COPYING file"
7611 . " to the version control system"
7612 . "\n for your code, to avoid questions"
7613 . " about which license your project uses";
7616 # Windows Perl will hang if we try to delete a
7617 # file that doesn't exist.
7618 unlink ($fullfile) if -f $fullfile;
7619 if ($symlink_exists && ! $copy_missing)
7621 if (! symlink ("$libdir/$file", $fullfile)
7625 $trailer = "; error while making link: $!";
7628 elsif (system ('cp', "$libdir/$file", $fullfile))
7631 $trailer = "\n error while copying";
7633 set_dir_cache_file ($dir, $file);
7638 $trailer = "\n 'automake --add-missing' can install '$file'"
7639 if -f "$libdir/$file";
7642 # If --force-missing was specified, and we have
7643 # actually found the file, then do nothing.
7645 if $found_it && $force_missing;
7647 # If we couldn't install the file, but it is a target in
7648 # the Makefile, don't print anything. This allows files
7649 # like README, AUTHORS, or THANKS to be generated.
7651 if !$suppress && rule $file;
7653 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7657 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7658 # ----------------------------------------------------------------------
7659 # Verify that the file must exist in $DIRECTORY, or install it.
7660 # $MYSTRICT is the strictness level at which this file becomes required.
7661 # Worker threads may queue up the action to be serialized by the master,
7663 sub require_file_internal ($$$@)
7665 my ($where, $mystrict, $dir, $queue, @files) = @_;
7668 unless $strictness >= $mystrict;
7670 foreach my $file (@files)
7672 push_required_file ($dir, $file, "$dir/$file");
7675 queue_required_file_check_or_copy ($required_conf_file_queue,
7676 QUEUE_CONF_FILE, $relative_dir,
7677 $where, $mystrict, @files);
7681 required_file_check_or_copy ($where, $dir, $file);
7686 # &require_file ($WHERE, $MYSTRICT, @FILES)
7687 # -----------------------------------------
7688 sub require_file ($$@)
7690 my ($where, $mystrict, @files) = @_;
7691 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7694 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7695 # -----------------------------------------------------------
7696 sub require_file_with_macro ($$$@)
7698 my ($cond, $macro, $mystrict, @files) = @_;
7699 $macro = rvar ($macro) unless ref $macro;
7700 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7703 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7704 # ----------------------------------------------------------------
7705 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7706 # must be in that directory. Otherwise expect it in the current directory.
7707 sub require_libsource_with_macro ($$$@)
7709 my ($cond, $macro, $mystrict, @files) = @_;
7710 $macro = rvar ($macro) unless ref $macro;
7711 if ($config_libobj_dir)
7713 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7714 $config_libobj_dir, 0, @files);
7718 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7722 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7723 # $MYSTRICT, @FILES)
7724 # ---------------------------------------------------------------
7725 sub queue_required_file_check_or_copy ($$$$@)
7727 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7731 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7735 @serial_loc = (QUEUE_STRING, $where);
7737 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7740 # &require_queued_file_check_or_copy ($QUEUE)
7741 # -------------------------------------------
7742 sub require_queued_file_check_or_copy ($)
7746 my $dir = $queue->dequeue ();
7747 my $loc_key = $queue->dequeue ();
7748 if ($loc_key eq QUEUE_LOCATION)
7750 $where = Automake::Location::deserialize ($queue);
7752 elsif ($loc_key eq QUEUE_STRING)
7754 $where = $queue->dequeue ();
7758 prog_error "unexpected key $loc_key";
7760 my $mystrict = $queue->dequeue ();
7761 my $nfiles = $queue->dequeue ();
7763 push @files, $queue->dequeue ()
7764 foreach (1 .. $nfiles);
7766 unless $strictness >= $mystrict;
7767 foreach my $file (@files)
7769 required_file_check_or_copy ($where, $config_aux_dir, $file);
7773 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7774 # ----------------------------------------------
7775 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7776 sub require_conf_file ($$@)
7778 my ($where, $mystrict, @files) = @_;
7779 my $queue = defined $required_conf_file_queue ? 1 : 0;
7780 require_file_internal ($where, $mystrict, $config_aux_dir,
7785 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7786 # ----------------------------------------------------------------
7787 sub require_conf_file_with_macro ($$$@)
7789 my ($cond, $macro, $mystrict, @files) = @_;
7790 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7794 ################################################################
7796 # &require_build_directory ($DIRECTORY)
7797 # -------------------------------------
7798 # Emit rules to create $DIRECTORY if needed, and return
7799 # the file that any target requiring this directory should be made
7801 # We don't want to emit the rule twice, and want to reuse it
7802 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7803 sub require_build_directory ($)
7805 my $directory = shift;
7807 return $directory_map{$directory} if exists $directory_map{$directory};
7809 my $cdir = File::Spec->canonpath ($directory);
7811 if (exists $directory_map{$cdir})
7813 my $stamp = $directory_map{$cdir};
7814 $directory_map{$directory} = $stamp;
7818 my $dirstamp = "$cdir/\$(am__dirstamp)";
7820 $directory_map{$directory} = $dirstamp;
7821 $directory_map{$cdir} = $dirstamp;
7823 # Set a variable for the dirstamp basename.
7824 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7825 '$(am__leading_dot)dirstamp');
7827 # Directory must be removed by 'make distclean'.
7828 $clean_files{$dirstamp} = DIST_CLEAN;
7830 $output_rules .= ("$dirstamp:\n"
7831 . "\t\@\$(MKDIR_P) $directory\n"
7832 . "\t\@: > $dirstamp\n");
7837 # &require_build_directory_maybe ($FILE)
7838 # --------------------------------------
7839 # If $FILE lies in a subdirectory, emit a rule to create this
7840 # directory and return the file that $FILE should be made
7841 # dependent upon. Otherwise, just return the empty string.
7842 sub require_build_directory_maybe ($)
7845 my $directory = dirname ($file);
7847 if ($directory ne '.')
7849 return require_build_directory ($directory);
7857 ################################################################
7859 # Push a list of files onto dist_common.
7860 sub push_dist_common
7862 prog_error "push_dist_common run after handle_dist"
7863 if $handle_dist_run;
7864 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7865 '', INTERNAL, VAR_PRETTY);
7869 ################################################################
7871 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7872 # ----------------------------------------------
7873 # Generate a Makefile.in given the name of the corresponding Makefile and
7874 # the name of the file output by config.status.
7875 sub generate_makefile ($$)
7877 my ($makefile_am, $makefile_in) = @_;
7879 # Reset all the Makefile.am related variables.
7880 initialize_per_input;
7882 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7883 # warnings for this file. So hold any warning issued before
7884 # we have processed AUTOMAKE_OPTIONS.
7885 buffer_messages ('warning');
7887 # $OUTPUT is encoded. If it contains a ":" then the first element
7888 # is the real output file, and all remaining elements are input
7889 # files. We don't scan or otherwise deal with these input files,
7890 # other than to mark them as dependencies. See
7891 # &scan_autoconf_files for details.
7892 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7894 $relative_dir = dirname ($makefile);
7895 $am_relative_dir = dirname ($makefile_am);
7897 read_main_am_file ($makefile_am, $makefile_in);
7900 # Process buffered warnings.
7902 # Fatal error. Just return, so we can continue with next file.
7905 # Process buffered warnings.
7908 # There are a few install-related variables that you should not define.
7909 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7914 my $def = $v->def (TRUE);
7915 prog_error "$var not defined in condition TRUE"
7917 reject_var $var, "'$var' should not be defined"
7918 if $def->owner != VAR_AUTOMAKE;
7922 # Catch some obsolete variables.
7923 msg_var ('obsolete', 'INCLUDES',
7924 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7925 if var ('INCLUDES');
7927 # Must do this after reading .am file.
7928 define_variable ('subdir', $relative_dir, INTERNAL);
7930 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7931 # recursive rules are enabled.
7932 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7933 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7935 # Check first, because we might modify some state.
7936 check_gnu_standards;
7937 check_gnits_standards;
7939 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7948 # These must be run after all the sources are scanned. They
7949 # use variables defined by &handle_libraries, &handle_ltlibraries,
7950 # or &handle_programs.
7955 # Variables used by distdir.am and tags.am.
7956 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7957 if (! option 'no-dist')
7959 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7970 handle_user_recursion;
7972 handle_minor_options;
7973 # Must come after handle_programs so that %known_programs is up-to-date.
7976 # This must come after most other rules.
7980 do_check_merge_target;
7981 handle_all ($makefile);
7984 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7986 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7988 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7990 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7994 handle_clean ($makefile);
7995 handle_factored_dependencies;
7997 # Comes last, because all the above procedures may have
7998 # defined or overridden variables.
7999 $output_vars .= output_variables;
8003 if ($exit_code != 0)
8005 verb "not writing $makefile_in because of earlier errors";
8009 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8011 # We make sure that 'all:' is the first target.
8013 "$output_vars$output_all$output_header$output_rules$output_trailer";
8015 # Decide whether we must update the output file or not.
8016 # We have to update in the following situations.
8017 # * $force_generation is set.
8018 # * any of the output dependencies is younger than the output
8019 # * the contents of the output is different (this can happen
8020 # if the project has been populated with a file listed in
8021 # @common_files since the last run).
8022 # Output's dependencies are split in two sets:
8023 # * dependencies which are also configure dependencies
8024 # These do not change between each Makefile.am
8025 # * other dependencies, specific to the Makefile.am being processed
8026 # (such as the Makefile.am itself, or any Makefile fragment
8028 my $timestamp = mtime $makefile_in;
8029 if (! $force_generation
8030 && $configure_deps_greatest_timestamp < $timestamp
8031 && $output_deps_greatest_timestamp < $timestamp
8032 && $output eq contents ($makefile_in))
8034 verb "$makefile_in unchanged";
8035 # No need to update.
8039 if (-e $makefile_in)
8041 unlink ($makefile_in)
8042 or fatal "cannot remove $makefile_in: $!";
8045 my $gm_file = new Automake::XFile "> $makefile_in";
8046 verb "creating $makefile_in";
8047 print $gm_file $output;
8050 ################################################################
8055 ################################################################
8057 # Helper function for usage().
8058 sub print_autodist_files (@)
8060 my @lcomm = sort (&uniq (@_));
8063 format USAGE_FORMAT =
8064 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8065 $four[0], $four[1], $four[2], $four[3]
8067 local $~ = "USAGE_FORMAT";
8070 my $rows = int(@lcomm / $cols);
8071 my $rest = @lcomm % $cols;
8082 for (my $y = 0; $y < $rows; $y++)
8084 @four = ("", "", "", "");
8085 for (my $x = 0; $x < $cols; $x++)
8087 last if $y + 1 == $rows && $x == $rest;
8089 my $idx = (($x > $rest)
8090 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8094 $four[$x] = $lcomm[$idx];
8101 # Print usage information.
8104 print "Usage: $0 [OPTION]... [Makefile]...
8106 Generate Makefile.in for configure from Makefile.am.
8109 --help print this help, then exit
8110 --version print version number, then exit
8111 -v, --verbose verbosely list files processed
8112 --no-force only update Makefile.in's that are out of date
8113 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8115 Dependency tracking:
8116 -i, --ignore-deps disable dependency tracking code
8117 --include-deps enable dependency tracking code
8120 --foreign set strictness to foreign
8121 --gnits set strictness to gnits
8122 --gnu set strictness to gnu
8125 -a, --add-missing add missing standard files to package
8126 --libdir=DIR set directory storing library files
8127 --print-libdir print directory storing library files
8128 -c, --copy with -a, copy missing files (default is symlink)
8129 -f, --force-missing force update of standard files
8132 Automake::ChannelDefs::usage;
8134 print "\nFiles automatically distributed if found " .
8136 print_autodist_files @common_files;
8137 print "\nFiles automatically distributed if found " .
8138 "(under certain conditions):\n";
8139 print_autodist_files @common_sometimes;
8142 Report bugs to <@PACKAGE_BUGREPORT@>.
8143 GNU Automake home page: <@PACKAGE_URL@>.
8144 General help using GNU software: <http://www.gnu.org/gethelp/>.
8147 # --help always returns 0 per GNU standards.
8154 # Print version information
8158 automake (GNU $PACKAGE) $VERSION
8159 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8160 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8161 This is free software: you are free to change and redistribute it.
8162 There is NO WARRANTY, to the extent permitted by law.
8164 Written by Tom Tromey <tromey\@redhat.com>
8165 and Alexandre Duret-Lutz <adl\@gnu.org>.
8167 # --version always returns 0 per GNU standards.
8171 ################################################################
8173 # Parse command line.
8174 sub parse_arguments ()
8177 my $ignore_deps = 0;
8182 'version' => \&version,
8184 'libdir=s' => \$libdir,
8185 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8186 'gnu' => sub { $strict = 'gnu'; },
8187 'gnits' => sub { $strict = 'gnits'; },
8188 'foreign' => sub { $strict = 'foreign'; },
8189 'include-deps' => sub { $ignore_deps = 0; },
8190 'i|ignore-deps' => sub { $ignore_deps = 1; },
8191 'no-force' => sub { $force_generation = 0; },
8192 'f|force-missing' => \$force_missing,
8193 'a|add-missing' => \$add_missing,
8194 'c|copy' => \$copy_missing,
8195 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8196 'W|warnings=s' => \@warnings,
8199 use Automake::Getopt ();
8200 Automake::Getopt::parse_options %cli_options;
8202 set_strictness ($strict);
8203 my $cli_where = new Automake::Location;
8204 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8205 for my $warning (@warnings)
8207 &parse_warnings ('-W', $warning);
8210 return unless @ARGV;
8213 foreach my $arg (@ARGV)
8215 fatal ("empty argument\nTry '$0 --help' for more information")
8218 # Handle $local:$input syntax.
8219 my ($local, @rest) = split (/:/, $arg);
8220 @rest = ("$local.in",) unless @rest;
8221 my $input = locate_am @rest;
8224 push @input_files, $input;
8225 $output_files{$input} = join (':', ($local, @rest));
8229 error "no Automake input file found for '$arg'";
8233 fatal "no input file found among supplied arguments"
8234 if $errspec && ! @input_files;
8238 # handle_makefile ($MAKEFILE_IN)
8239 # ------------------------------
8240 # Deal with $MAKEFILE_IN.
8241 sub handle_makefile ($)
8244 ($am_file = $file) =~ s/\.in$//;
8245 if (! -f ($am_file . '.am'))
8247 error "'$am_file.am' does not exist";
8251 # Any warning setting now local to this Makefile.am.
8254 generate_makefile ($am_file . '.am', $file);
8256 # Back out any warning setting.
8261 # handle_makefiles_serial ()
8262 # --------------------------
8263 # Deal with all makefiles, without threads.
8264 sub handle_makefiles_serial ()
8266 foreach my $file (@input_files)
8268 handle_makefile ($file);
8272 # get_number_of_threads ()
8273 # ------------------------
8274 # Logic for deciding how many worker threads to use.
8275 sub get_number_of_threads
8277 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8280 unless $nthreads =~ /^[0-9]+$/;
8282 # It doesn't make sense to use more threads than makefiles,
8283 my $max_threads = @input_files;
8285 if ($nthreads > $max_threads)
8287 $nthreads = $max_threads;
8292 # handle_makefiles_threaded ($NTHREADS)
8293 # -------------------------------------
8294 # Deal with all makefiles, using threads. The general strategy is to
8295 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8296 # worker threads push back everything that needs serialization:
8297 # * warning and (normal) error messages, for stable stderr output
8298 # order and content (avoiding duplicates, for example),
8299 # * races when installing aux files (and respective messages),
8300 # * races when collecting aux files for distribution.
8302 # The latter requires that the makefile that deals with the aux dir
8303 # files be handled last, done by the master thread.
8304 sub handle_makefiles_threaded ($)
8306 my ($nthreads) = @_;
8308 # The file queue distributes all makefiles, the message queues
8309 # collect all serializations needed for respective files.
8310 my $file_queue = Thread::Queue->new;
8312 foreach my $file (@input_files)
8314 $msg_queues{$file} = Thread::Queue->new;
8317 verb "spawning $nthreads worker threads";
8318 my @threads = (1 .. $nthreads);
8319 foreach my $t (@threads)
8321 $t = threads->new (sub
8323 while (my $file = $file_queue->dequeue)
8325 verb "handling $file";
8326 my $queue = $msg_queues{$file};
8327 setup_channel_queue ($queue, QUEUE_MESSAGE);
8328 $required_conf_file_queue = $queue;
8329 handle_makefile ($file);
8330 $queue->enqueue (undef);
8331 setup_channel_queue (undef, undef);
8332 $required_conf_file_queue = undef;
8338 # Queue all makefiles.
8339 verb "queuing " . @input_files . " input files";
8340 $file_queue->enqueue (@input_files, (undef) x @threads);
8342 # Collect and process serializations.
8343 foreach my $file (@input_files)
8345 verb "dequeuing messages for " . $file;
8346 reset_local_duplicates ();
8347 my $queue = $msg_queues{$file};
8348 while (my $key = $queue->dequeue)
8350 if ($key eq QUEUE_MESSAGE)
8352 pop_channel_queue ($queue);
8354 elsif ($key eq QUEUE_CONF_FILE)
8356 require_queued_file_check_or_copy ($queue);
8360 prog_error "unexpected key $key";
8365 foreach my $t (@threads)
8367 my @exit_thread = $t->join;
8368 $exit_code = $exit_thread[0]
8369 if ($exit_thread[0] > $exit_code);
8373 ################################################################
8375 # Parse the WARNINGS environment variable.
8378 # Parse command line.
8381 $configure_ac = require_configure_ac;
8383 # Do configure.ac scan only once.
8384 scan_autoconf_files;
8389 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8390 if -f 'Makefile.am';
8391 fatal ("no 'Makefile.am' found for any configure output$msg");
8394 my $nthreads = get_number_of_threads ();
8396 if ($perl_threads && $nthreads >= 1)
8398 handle_makefiles_threaded ($nthreads);
8402 handle_makefiles_serial ();
8408 ### Setup "GNU" style for perl-mode and cperl-mode.
8410 ## perl-indent-level: 2
8411 ## perl-continued-statement-offset: 2
8412 ## perl-continued-brace-offset: 0
8413 ## perl-brace-offset: 0
8414 ## perl-brace-imaginary-offset: 0
8415 ## perl-label-offset: -2
8416 ## cperl-indent-level: 2
8417 ## cperl-brace-offset: 0
8418 ## cperl-continued-brace-offset: 0
8419 ## cperl-label-offset: -2
8420 ## cperl-extra-newline-before-brace: t
8421 ## cperl-merge-trailing-else: nil
8422 ## cperl-continued-statement-offset: 2