| blob | f04f5d5f55543dd02560ee9564c20e3cb6b940bf |
1 #!@PERL@
2 # automake - create Makefile.in from Makefile.am -*- perl -*-
3 # @configure_input@
4 # Copyright (C) 1994-2021 Free Software Foundation, Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2, or (at your option)
9 # any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <https://www.gnu.org/licenses/>.
19 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
20 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
21 # Alexandre Duret-Lutz <adl@gnu.org>.
23 package Automake;
25 use 5.006;
26 use strict;
27 use warnings FATAL => 'all';
29 BEGIN
30 {
31 unshift (@INC, '@datadir@/@PACKAGE@-@APIVERSION@')
32 unless $ENV{AUTOMAKE_UNINSTALLED};
34 # Override SHELL. This is required on DJGPP so that system() uses
35 # bash, not COMMAND.COM which doesn't quote arguments properly.
36 # Other systems aren't expected to use $SHELL when Automake
37 # runs, but it should be safe to drop the "if DJGPP" guard if
38 # it turns up other systems need the same thing. After all,
39 # if SHELL is used, ./configure's SHELL is always better than
40 # the user's SHELL (which may be something like tcsh).
41 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
42 }
44 use Carp;
45 use File::Basename;
46 use File::Spec;
48 use Automake::Config;
49 BEGIN
50 {
51 if ($perl_threads)
52 {
53 require threads;
54 import threads;
55 require Thread::Queue;
56 import Thread::Queue;
57 }
58 }
59 use Automake::General;
60 use Automake::XFile;
61 use Automake::Channels;
62 use Automake::ChannelDefs;
63 use Automake::Configure_ac;
64 use Automake::FileUtils;
65 use Automake::Location;
66 use Automake::Condition qw/TRUE FALSE/;
67 use Automake::DisjConditions;
68 use Automake::Options;
69 use Automake::Variable;
70 use Automake::VarDef;
71 use Automake::Rule;
72 use Automake::RuleDef;
73 use Automake::Wrap 'makefile_wrap';
74 use Automake::Language;
76 ## ----------------------- ##
77 ## Subroutine prototypes. ##
78 ## ----------------------- ##
80 sub append_exeext (&$);
81 sub check_gnits_standards ();
82 sub check_gnu_standards ();
83 sub check_trailing_slash ($\$);
84 sub check_typos ();
85 sub define_files_variable ($\@$$);
86 sub define_standard_variables ();
87 sub define_verbose_libtool ();
88 sub define_verbose_texinfo ();
89 sub do_check_merge_target ();
90 sub get_number_of_threads ();
91 sub handle_compile ();
92 sub handle_data ();
93 sub handle_dist ();
94 sub handle_emacs_lisp ();
95 sub handle_factored_dependencies ();
96 sub handle_footer ();
97 sub handle_gettext ();
98 sub handle_headers ();
99 sub handle_install ();
100 sub handle_java ();
101 sub handle_languages ();
102 sub handle_libraries ();
103 sub handle_libtool ();
104 sub handle_ltlibraries ();
105 sub handle_makefiles_serial ();
106 sub handle_man_pages ();
107 sub handle_minor_options ();
108 sub handle_options ();
109 sub handle_programs ();
110 sub handle_python ();
111 sub handle_scripts ();
112 sub handle_silent ();
113 sub handle_subdirs ();
114 sub handle_tags ();
115 sub handle_targets ();
116 sub handle_tests ();
117 sub handle_tests_dejagnu ();
118 sub handle_texinfo ();
119 sub handle_user_recursion ();
120 sub initialize_per_input ();
121 sub lang_lex_finish ();
122 sub lang_sub_obj ();
123 sub lang_vala_finish ();
124 sub lang_yacc_finish ();
125 sub locate_aux_dir ();
126 sub parse_arguments ();
127 sub scan_aclocal_m4 ();
128 sub scan_autoconf_files ();
129 sub silent_flag ();
130 sub transform ($\%);
131 sub transform_token ($\%$);
132 sub usage ();
133 sub version ();
134 sub yacc_lex_finish_helper ();
136 ## ----------- ##
137 ## Constants. ##
138 ## ----------- ##
140 # Some regular expressions. One reason to put them here is that it
141 # makes indentation work better in Emacs.
143 # Writing singled-quoted-$-terminated regexes is a pain because
144 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
145 # by a closing quote. Letting perl-mode think the quote is not closed
146 # leads to all sort of misindentations. On the other hand, defining
147 # regexes as double-quoted strings is far less readable. So usually
148 # we will write:
149 #
150 # $REGEX = '^regex_value' . "\$";
152 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
153 my $WHITE_PATTERN = '^\s*' . "\$";
154 my $COMMENT_PATTERN = '^#';
155 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
156 # A rule has three parts: a list of targets, a list of dependencies,
157 # and optionally actions.
158 my $RULE_PATTERN =
159 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
161 # Only recognize leading spaces, not leading tabs. If we recognize
162 # leading tabs here then we need to make the reader smarter, because
163 # otherwise it will think rules like 'foo=bar; \' are errors.
164 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
165 # This pattern recognizes a Gnits version id and sets $1 if the
166 # release is an alpha release. We also allow a suffix which can be
167 # used to extend the version number with a "fork" identifier.
168 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
170 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
171 my $ELSE_PATTERN =
172 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
173 my $ENDIF_PATTERN =
174 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
175 my $PATH_PATTERN = '(\w|[+/.-])+';
176 # This will pass through anything not of the prescribed form.
177 my $INCLUDE_PATTERN = ('^include\s+'
178 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
179 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
180 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
182 # Directories installed during 'install-exec' phase.
183 my $EXEC_DIR_PATTERN =
184 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
186 # Values for AC_CANONICAL_*
187 use constant AC_CANONICAL_BUILD => 1;
188 use constant AC_CANONICAL_HOST => 2;
189 use constant AC_CANONICAL_TARGET => 3;
191 # Values indicating when something should be cleaned.
192 use constant MOSTLY_CLEAN => 0;
193 use constant CLEAN => 1;
194 use constant DIST_CLEAN => 2;
195 use constant MAINTAINER_CLEAN => 3;
197 # Libtool files.
198 my @libtool_files = qw(ltmain.sh config.guess config.sub);
199 # ltconfig appears here for compatibility with old versions of libtool.
200 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
202 # Top-level files that can be foo.md instead of foo. We assume that all
203 # but THANKS are required at strictness level gnu.
204 my @toplevelmd_ok = qw(AUTHORS ChangeLog INSTALL NEWS README THANKS);
206 # Commonly found files we look for and automatically include in DISTFILES.
207 my @common_files =
208 (qw(ABOUT-GNU ABOUT-NLS BACKLOG COPYING
209 COPYING.DOC COPYING.LIB COPYING.LESSER TODO
210 ar-lib compile config.guess config.rpath
211 config.sub depcomp install-sh libversion.in mdate-sh
212 missing mkinstalldirs py-compile texinfo.tex ylwrap),
213 @libtool_files, @libtool_sometimes);
215 # Commonly used files we auto-include, but only sometimes. This list
216 # is used for the --help output only.
217 my @common_sometimes =
218 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
219 configure.ac configure.in stamp-vti);
221 # Standard directories from the GNU Coding Standards, and additional
222 # pkg* directories from Automake. Stored in a hash for fast member check.
223 my %standard_prefix =
224 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
225 lib libexec lisp locale localstate man man1 man2
226 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
227 pkgdata pkginclude pkglib pkglibexec ps sbin
228 sharedstate sysconf));
230 # Copyright on generated Makefile.ins.
231 my $gen_copyright = "\
232 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
234 # This Makefile.in is free software; the Free Software Foundation
235 # gives unlimited permission to copy and/or distribute it,
236 # with or without modifications, as long as this notice is preserved.
238 # This program is distributed in the hope that it will be useful,
239 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
240 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
241 # PARTICULAR PURPOSE.
242 ";
244 # These constants are returned by the lang_*_rewrite functions.
245 # LANG_SUBDIR means that the resulting object file should be in a
246 # subdir if the source file is. In this case the file name cannot
247 # have '..' components.
248 use constant LANG_IGNORE => 0;
249 use constant LANG_PROCESS => 1;
250 use constant LANG_SUBDIR => 2;
252 # These are used when keeping track of whether an object can be built
253 # by two different paths.
254 use constant COMPILE_LIBTOOL => 1;
255 use constant COMPILE_ORDINARY => 2;
257 # We can't always associate a location to a variable or a rule,
258 # when it's defined by Automake. We use INTERNAL in this case.
259 use constant INTERNAL => new Automake::Location;
261 # Serialization keys for message queues.
262 use constant QUEUE_MESSAGE => "msg";
263 use constant QUEUE_CONF_FILE => "conf file";
264 use constant QUEUE_LOCATION => "location";
265 use constant QUEUE_STRING => "string";
267 ## ---------------------------------- ##
268 ## Variables related to the options. ##
269 ## ---------------------------------- ##
271 # TRUE if we should always generate Makefile.in.
272 my $force_generation = 1;
274 # From the Perl manual.
275 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
277 # TRUE if missing standard files should be installed.
278 my $add_missing = 0;
280 # TRUE if we should copy missing files; otherwise symlink if possible.
281 my $copy_missing = 0;
283 # TRUE if we should always update files that we know about.
284 my $force_missing = 0;
287 ## ---------------------------------------- ##
288 ## Variables filled during files scanning. ##
289 ## ---------------------------------------- ##
291 # Name of the configure.ac file.
292 my $configure_ac;
294 # Files found by scanning configure.ac for LIBOBJS.
295 my %libsources = ();
297 # Names used in AC_CONFIG_HEADERS call.
298 my @config_headers = ();
300 # Names used in AC_CONFIG_LINKS call.
301 my @config_links = ();
303 # List of Makefile.am's to process, and their corresponding outputs.
304 my @input_files = ();
305 my %output_files = ();
307 # Complete list of Makefile.am's that exist.
308 my @configure_input_files = ();
310 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
311 # and their outputs.
312 my @other_input_files = ();
313 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADERS
314 # appears. The keys are the files created by these macros.
315 my %ac_config_files_location = ();
316 # The condition under which AC_CONFIG_FOOS appears.
317 my %ac_config_files_condition = ();
319 # Directory to search for configure-required files. This
320 # will be computed by locate_aux_dir() and can be set using
321 # AC_CONFIG_AUX_DIR in configure.ac.
322 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
323 my $config_aux_dir = '';
324 my $config_aux_dir_set_in_configure_ac = 0;
325 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
326 # in Makefiles.
327 my $am_config_aux_dir = '';
329 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
330 # in configure.ac.
331 my $config_libobj_dir = '';
333 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
334 my $seen_gettext = 0;
335 # Whether AM_GNU_GETTEXT([external]) is used.
336 my $seen_gettext_external = 0;
337 # Where AM_GNU_GETTEXT appears.
338 my $ac_gettext_location;
339 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
340 my $seen_gettext_intl = 0;
342 # The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
343 my @extra_recursive_targets = ();
345 # Lists of tags supported by Libtool.
346 my %libtool_tags = ();
347 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
348 # uses AC_REQUIRE_AUX_FILE.
349 my $libtool_new_api = 0;
351 # Most important AC_CANONICAL_* macro seen so far.
352 my $seen_canonical = 0;
354 # Where AM_MAINTAINER_MODE appears.
355 my $seen_maint_mode;
357 # Actual version we've seen.
358 my $package_version = '';
360 # Where version is defined.
361 my $package_version_location;
363 # TRUE if we've seen AM_PROG_AR
364 my $seen_ar = 0;
366 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
367 my %required_aux_file = ();
369 # Where AM_INIT_AUTOMAKE is called.
370 my $seen_init_automake = 0;
372 # TRUE if we've seen AM_AUTOMAKE_VERSION.
373 my $seen_automake_version = 0;
375 # Hash table of discovered configure substitutions. Keys are names,
376 # values are 'FILE:LINE' strings which are used by error message
377 # generation.
378 my %configure_vars = ();
380 # Ignored configure substitutions (i.e., variables not to be output in
381 # Makefile.in)
382 my %ignored_configure_vars = ();
384 # Files included by $configure_ac.
385 my @configure_deps = ();
387 # Greatest timestamp of configure's dependencies.
388 my $configure_deps_greatest_timestamp = 0;
390 # Hash table of AM_CONDITIONAL variables seen in configure.
391 my %configure_cond = ();
393 # This maps extensions onto language names.
394 my %extension_map = ();
396 # List of the DIST_COMMON files we discovered while reading
397 # configure.ac.
398 my @configure_dist_common = ();
400 # This maps languages names onto objects.
401 my %languages = ();
402 # Maps each linker variable onto a language object.
403 my %link_languages = ();
405 # maps extensions to needed source flags.
406 my %sourceflags = ();
408 # List of targets we must always output.
409 # FIXME: Complete, and remove falsely required targets.
410 my %required_targets =
411 (
412 'all' => 1,
413 'dvi' => 1,
414 'pdf' => 1,
415 'ps' => 1,
416 'info' => 1,
417 'install-info' => 1,
418 'install' => 1,
419 'install-data' => 1,
420 'install-exec' => 1,
421 'uninstall' => 1,
423 # FIXME: Not required, temporary hacks.
424 # Well, actually they are sort of required: the -recursive
425 # targets will run them anyway...
426 'html-am' => 1,
427 'dvi-am' => 1,
428 'pdf-am' => 1,
429 'ps-am' => 1,
430 'info-am' => 1,
431 'install-data-am' => 1,
432 'install-exec-am' => 1,
433 'install-html-am' => 1,
434 'install-dvi-am' => 1,
435 'install-pdf-am' => 1,
436 'install-ps-am' => 1,
437 'install-info-am' => 1,
438 'installcheck-am' => 1,
439 'uninstall-am' => 1,
440 'tags-am' => 1,
441 'ctags-am' => 1,
442 'cscopelist-am' => 1,
443 'install-man' => 1,
444 );
446 # Queue to push require_conf_file requirements to.
447 my $required_conf_file_queue;
449 # The name of the Makefile currently being processed.
450 my $am_file = 'BUG';
452 ################################################################
454 ## ------------------------------------------ ##
455 ## Variables reset by &initialize_per_input. ##
456 ## ------------------------------------------ ##
458 # Relative dir of the output makefile.
459 my $relative_dir;
461 # Greatest timestamp of the output's dependencies (excluding
462 # configure's dependencies).
463 my $output_deps_greatest_timestamp;
465 # These variables are used when generating each Makefile.in.
466 # They hold the Makefile.in until it is ready to be printed.
467 my $output_vars;
468 my $output_all;
469 my $output_header;
470 my $output_rules;
471 my $output_trailer;
473 # This is the conditional stack, updated on if/else/endif, and
474 # used to build Condition objects.
475 my @cond_stack;
477 # This holds the set of included files.
478 my @include_stack;
480 # List of dependencies for the obvious targets.
481 my @all;
482 my @check;
483 my @check_tests;
485 # Keys in this hash table are files to delete. The associated
486 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
487 my %clean_files;
489 # Keys in this hash table are object files or other files in
490 # subdirectories which need to be removed. This only holds files
491 # which are created by compilations. The value in the hash indicates
492 # when the file should be removed.
493 my %compile_clean_files;
495 # Keys in this hash table are directories where we expect to build a
496 # libtool object. We use this information to decide what directories
497 # to delete.
498 my %libtool_clean_directories;
500 # Value of $(SOURCES), used by tags.am.
501 my @sources;
502 # Sources which go in the distribution.
503 my @dist_sources;
505 # This hash maps object file names onto their corresponding source
506 # file names. This is used to ensure that each object is created
507 # by a single source file.
508 my %object_map;
510 # This hash maps object file names onto an integer value representing
511 # whether this object has been built via ordinary compilation or
512 # libtool compilation (the COMPILE_* constants).
513 my %object_compilation_map;
516 # This keeps track of the directories for which we've already
517 # created dirstamp code. Keys are directories, values are stamp files.
518 # Several keys can share the same stamp files if they are equivalent
519 # (as are './/foo' and 'foo').
520 my %directory_map;
522 # All .P files.
523 my %dep_files;
525 # This is a list of all targets to run during "make dist".
526 my @dist_targets;
528 # List of all programs, libraries and ltlibraries as returned
529 # by am_install_var
530 my @proglist;
531 my @liblist;
532 my @ltliblist;
533 # Blacklist of targets (as canonical base name) for which object file names
534 # may not be automatically shortened
535 my @dup_shortnames;
537 # Keep track of all programs declared in this Makefile, without
538 # $(EXEEXT). @substitutions@ are not listed.
539 my %known_programs;
540 my %known_libraries;
542 # This keeps track of which extensions we've seen (that we care
543 # about).
544 my %extension_seen;
546 # This is random scratch space for the language finish functions.
547 # Don't randomly overwrite it; examine other uses of keys first.
548 my %language_scratch;
550 # We keep track of which objects need special (per-executable)
551 # handling on a per-language basis.
552 my %lang_specific_files;
554 # List of distributed files to be put in DIST_COMMON.
555 my @dist_common;
557 # This is set when 'handle_dist' has finished. Once this happens,
558 # we should no longer push on dist_common.
559 my $handle_dist_run;
561 # Used to store a set of linkers needed to generate the sources currently
562 # under consideration.
563 my %linkers_used;
565 # True if we need 'LINK' defined. This is a hack.
566 my $need_link;
568 # Does the generated Makefile have to build some compiled object
569 # (for binary programs, or plain or libtool libraries)?
570 my $must_handle_compiled_objects;
572 # Record each file processed by make_paragraphs.
573 my %transformed_files;
575 ################################################################
577 ## ---------------------------------------------- ##
578 ## Variables not reset by &initialize_per_input. ##
579 ## ---------------------------------------------- ##
581 # Cache each file processed by make_paragraphs.
582 # (This is different from %transformed_files because
583 # %transformed_files is reset for each file while %am_file_cache
584 # it global to the run.)
585 my %am_file_cache;
587 ################################################################
589 # var_SUFFIXES_trigger ($TYPE, $VALUE)
590 # ------------------------------------
591 # This is called by Automake::Variable::define() when SUFFIXES
592 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
593 # The work here needs to be performed as a side-effect of the
594 # macro_define() call because SUFFIXES definitions impact
595 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
596 # the input am file.
597 sub var_SUFFIXES_trigger
598 {
599 my ($type, $value) = @_;
600 accept_extensions (split (' ', $value));
601 }
602 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
604 ################################################################
607 # initialize_per_input ()
608 # -----------------------
609 # (Re)-Initialize per-Makefile.am variables.
610 sub initialize_per_input ()
611 {
612 reset_local_duplicates ();
614 $relative_dir = undef;
616 $output_deps_greatest_timestamp = 0;
618 $output_vars = '';
619 $output_all = '';
620 $output_header = '';
621 $output_rules = '';
622 $output_trailer = '';
624 Automake::Options::reset;
625 Automake::Variable::reset;
626 Automake::Rule::reset;
628 @cond_stack = ();
630 @include_stack = ();
632 @all = ();
633 @check = ();
634 @check_tests = ();
636 %clean_files = ();
637 %compile_clean_files = ();
639 # We always include '.'. This isn't strictly correct.
640 %libtool_clean_directories = ('.' => 1);
642 @sources = ();
643 @dist_sources = ();
645 %object_map = ();
646 %object_compilation_map = ();
648 %directory_map = ();
650 %dep_files = ();
652 @dist_targets = ();
654 @dist_common = ();
655 $handle_dist_run = 0;
657 @proglist = ();
658 @liblist = ();
659 @ltliblist = ();
660 @dup_shortnames = ();
662 %known_programs = ();
663 %known_libraries = ();
665 %extension_seen = ();
667 %language_scratch = ();
669 %lang_specific_files = ();
671 $need_link = 0;
673 $must_handle_compiled_objects = 0;
675 %transformed_files = ();
676 }
679 ################################################################
681 # Initialize our list of languages that are internally supported.
683 my @cpplike_flags =
684 qw{
685 $(DEFS)
686 $(DEFAULT_INCLUDES)
687 $(INCLUDES)
688 $(AM_CPPFLAGS)
689 $(CPPFLAGS)
690 };
692 # C.
693 register_language ('name' => 'c',
694 'Name' => 'C',
695 'config_vars' => ['CC'],
696 'autodep' => '',
697 'flags' => ['CFLAGS', 'CPPFLAGS'],
698 'ccer' => 'CC',
699 'compiler' => 'COMPILE',
700 'compile' => "\$(CC) @cpplike_flags \$(AM_CFLAGS) \$(CFLAGS)",
701 'lder' => 'CCLD',
702 'ld' => '$(CC)',
703 'linker' => 'LINK',
704 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
705 'compile_flag' => '-c',
706 'output_flag' => '-o',
707 'libtool_tag' => 'CC',
708 'extensions' => ['.c']);
710 # C++.
711 register_language ('name' => 'cxx',
712 'Name' => 'C++',
713 'config_vars' => ['CXX'],
714 'linker' => 'CXXLINK',
715 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
716 'autodep' => 'CXX',
717 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
718 'compile' => "\$(CXX) @cpplike_flags \$(AM_CXXFLAGS) \$(CXXFLAGS)",
719 'ccer' => 'CXX',
720 'compiler' => 'CXXCOMPILE',
721 'compile_flag' => '-c',
722 'output_flag' => '-o',
723 'libtool_tag' => 'CXX',
724 'lder' => 'CXXLD',
725 'ld' => '$(CXX)',
726 'pure' => 1,
727 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
729 # Objective C.
730 register_language ('name' => 'objc',
731 'Name' => 'Objective C',
732 'config_vars' => ['OBJC'],
733 'linker' => 'OBJCLINK',
734 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
735 'autodep' => 'OBJC',
736 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
737 'compile' => "\$(OBJC) @cpplike_flags \$(AM_OBJCFLAGS) \$(OBJCFLAGS)",
738 'ccer' => 'OBJC',
739 'compiler' => 'OBJCCOMPILE',
740 'compile_flag' => '-c',
741 'output_flag' => '-o',
742 'lder' => 'OBJCLD',
743 'ld' => '$(OBJC)',
744 'pure' => 1,
745 'extensions' => ['.m']);
747 # Objective C++.
748 register_language ('name' => 'objcxx',
749 'Name' => 'Objective C++',
750 'config_vars' => ['OBJCXX'],
751 'linker' => 'OBJCXXLINK',
752 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
753 'autodep' => 'OBJCXX',
754 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
755 'compile' => "\$(OBJCXX) @cpplike_flags \$(AM_OBJCXXFLAGS) \$(OBJCXXFLAGS)",
756 'ccer' => 'OBJCXX',
757 'compiler' => 'OBJCXXCOMPILE',
758 'compile_flag' => '-c',
759 'output_flag' => '-o',
760 'lder' => 'OBJCXXLD',
761 'ld' => '$(OBJCXX)',
762 'pure' => 1,
763 'extensions' => ['.mm']);
765 # Unified Parallel C.
766 register_language ('name' => 'upc',
767 'Name' => 'Unified Parallel C',
768 'config_vars' => ['UPC'],
769 'linker' => 'UPCLINK',
770 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
771 'autodep' => 'UPC',
772 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
773 'compile' => "\$(UPC) @cpplike_flags \$(AM_UPCFLAGS) \$(UPCFLAGS)",
774 'ccer' => 'UPC',
775 'compiler' => 'UPCCOMPILE',
776 'compile_flag' => '-c',
777 'output_flag' => '-o',
778 'lder' => 'UPCLD',
779 'ld' => '$(UPC)',
780 'pure' => 1,
781 'extensions' => ['.upc']);
783 # Headers.
784 register_language ('name' => 'header',
785 'Name' => 'Header',
786 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
787 '.hpp', '.inc'],
788 # No output.
789 'output_extensions' => sub { return () },
790 # Nothing to do.
791 '_finish' => sub { });
793 # Vala
794 register_language ('name' => 'vala',
795 'Name' => 'Vala',
796 'config_vars' => ['VALAC'],
797 'flags' => [],
798 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
799 'ccer' => 'VALAC',
800 'compiler' => 'VALACOMPILE',
801 'extensions' => ['.vala'],
802 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
803 return ($ext,) },
804 'rule_file' => 'vala',
805 '_finish' => \&lang_vala_finish,
806 '_target_hook' => \&lang_vala_target_hook,
807 'nodist_specific' => 1);
809 # Yacc (C & C++).
810 register_language ('name' => 'yacc',
811 'Name' => 'Yacc',
812 'config_vars' => ['YACC'],
813 'flags' => ['YFLAGS'],
814 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
815 'ccer' => 'YACC',
816 'compiler' => 'YACCCOMPILE',
817 'extensions' => ['.y'],
818 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
819 return ($ext,) },
820 'rule_file' => 'yacc',
821 '_finish' => \&lang_yacc_finish,
822 '_target_hook' => \&lang_yacc_target_hook,
823 'nodist_specific' => 1);
824 register_language ('name' => 'yaccxx',
825 'Name' => 'Yacc (C++)',
826 'config_vars' => ['YACC'],
827 'rule_file' => 'yacc',
828 'flags' => ['YFLAGS'],
829 'ccer' => 'YACC',
830 'compiler' => 'YACCCOMPILE',
831 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
832 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
833 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
834 return ($ext,) },
835 '_finish' => \&lang_yacc_finish,
836 '_target_hook' => \&lang_yacc_target_hook,
837 'nodist_specific' => 1);
839 # Lex (C & C++).
840 register_language ('name' => 'lex',
841 'Name' => 'Lex',
842 'config_vars' => ['LEX'],
843 'rule_file' => 'lex',
844 'flags' => ['LFLAGS'],
845 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
846 'ccer' => 'LEX',
847 'compiler' => 'LEXCOMPILE',
848 'extensions' => ['.l'],
849 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
850 return ($ext,) },
851 '_finish' => \&lang_lex_finish,
852 '_target_hook' => \&lang_lex_target_hook,
853 'nodist_specific' => 1);
854 register_language ('name' => 'lexxx',
855 'Name' => 'Lex (C++)',
856 'config_vars' => ['LEX'],
857 'rule_file' => 'lex',
858 'flags' => ['LFLAGS'],
859 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
860 'ccer' => 'LEX',
861 'compiler' => 'LEXCOMPILE',
862 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
863 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
864 return ($ext,) },
865 '_finish' => \&lang_lex_finish,
866 '_target_hook' => \&lang_lex_target_hook,
867 'nodist_specific' => 1);
869 # Assembler.
870 register_language ('name' => 'asm',
871 'Name' => 'Assembler',
872 'config_vars' => ['CCAS', 'CCASFLAGS'],
874 'flags' => ['CCASFLAGS'],
875 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
876 # or anything else required. They can also set CCAS.
877 # Or simply use Preprocessed Assembler.
878 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
879 'ccer' => 'CCAS',
880 'compiler' => 'CCASCOMPILE',
881 'compile_flag' => '-c',
882 'output_flag' => '-o',
883 'extensions' => ['.s']);
885 # Preprocessed Assembler.
886 register_language ('name' => 'cppasm',
887 'Name' => 'Preprocessed Assembler',
888 'config_vars' => ['CCAS', 'CCASFLAGS'],
890 'autodep' => 'CCAS',
891 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
892 'compile' => "\$(CCAS) @cpplike_flags \$(AM_CCASFLAGS) \$(CCASFLAGS)",
893 'ccer' => 'CPPAS',
894 'compiler' => 'CPPASCOMPILE',
895 'libtool_tag' => 'CC',
896 'compile_flag' => '-c',
897 'output_flag' => '-o',
898 'extensions' => ['.S', '.sx']);
900 # Fortran 77
901 register_language ('name' => 'f77',
902 'Name' => 'Fortran 77',
903 'config_vars' => ['F77'],
904 'linker' => 'F77LINK',
905 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
906 'flags' => ['FFLAGS'],
907 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
908 'ccer' => 'F77',
909 'compiler' => 'F77COMPILE',
910 'compile_flag' => '-c',
911 'output_flag' => '-o',
912 'libtool_tag' => 'F77',
913 'lder' => 'F77LD',
914 'ld' => '$(F77)',
915 'pure' => 1,
916 'extensions' => ['.f', '.for']);
918 # Fortran
919 register_language ('name' => 'fc',
920 'Name' => 'Fortran',
921 'config_vars' => ['FC'],
922 'linker' => 'FCLINK',
923 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
924 'flags' => ['FCFLAGS'],
925 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
926 'ccer' => 'FC',
927 'compiler' => 'FCCOMPILE',
928 'compile_flag' => '-c',
929 'output_flag' => '-o',
930 'libtool_tag' => 'FC',
931 'lder' => 'FCLD',
932 'ld' => '$(FC)',
933 'pure' => 1,
934 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
936 # Preprocessed Fortran
937 register_language ('name' => 'ppfc',
938 'Name' => 'Preprocessed Fortran',
939 'config_vars' => ['FC'],
940 'linker' => 'FCLINK',
941 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
942 'lder' => 'FCLD',
943 'ld' => '$(FC)',
944 'flags' => ['FCFLAGS', 'CPPFLAGS'],
945 'ccer' => 'PPFC',
946 'compiler' => 'PPFCCOMPILE',
947 'compile' => "\$(FC) @cpplike_flags \$(AM_FCFLAGS) \$(FCFLAGS)",
948 'compile_flag' => '-c',
949 'output_flag' => '-o',
950 'libtool_tag' => 'FC',
951 'pure' => 1,
952 'extensions' => ['.F90','.F95', '.F03', '.F08']);
954 # Preprocessed Fortran 77
955 #
956 # The current support for preprocessing Fortran 77 just involves
957 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
958 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
959 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
960 # for 'make' Version 3.76 Beta" (specifically, from info file
961 # '(make)Catalogue of Rules').
962 #
963 # A better approach would be to write an Autoconf test
964 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
965 # Fortran 77 compilers know how to do preprocessing. The Autoconf
966 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
967 # preprocessing capabilities, and then fall back on cpp (if cpp were
968 # available).
969 register_language ('name' => 'ppf77',
970 'Name' => 'Preprocessed Fortran 77',
971 'config_vars' => ['F77'],
972 'linker' => 'F77LINK',
973 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
974 'lder' => 'F77LD',
975 'ld' => '$(F77)',
976 'flags' => ['FFLAGS', 'CPPFLAGS'],
977 'ccer' => 'PPF77',
978 'compiler' => 'PPF77COMPILE',
979 'compile' => "\$(F77) @cpplike_flags \$(AM_FFLAGS) \$(FFLAGS)",
980 'compile_flag' => '-c',
981 'output_flag' => '-o',
982 'libtool_tag' => 'F77',
983 'pure' => 1,
984 'extensions' => ['.F']);
986 # Ratfor.
987 register_language ('name' => 'ratfor',
988 'Name' => 'Ratfor',
989 'config_vars' => ['F77'],
990 'linker' => 'F77LINK',
991 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
992 'lder' => 'F77LD',
993 'ld' => '$(F77)',
994 'flags' => ['RFLAGS', 'FFLAGS'],
995 # FIXME also FFLAGS.
996 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
997 'ccer' => 'F77',
998 'compiler' => 'RCOMPILE',
999 'compile_flag' => '-c',
1000 'output_flag' => '-o',
1001 'libtool_tag' => 'F77',
1002 'pure' => 1,
1003 'extensions' => ['.r']);
1005 # Java via gcj.
1006 register_language ('name' => 'java',
1007 'Name' => 'Java',
1008 'config_vars' => ['GCJ'],
1009 'linker' => 'GCJLINK',
1010 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1011 'autodep' => 'GCJ',
1012 'flags' => ['GCJFLAGS'],
1013 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1014 'ccer' => 'GCJ',
1015 'compiler' => 'GCJCOMPILE',
1016 'compile_flag' => '-c',
1017 'output_flag' => '-o',
1018 'libtool_tag' => 'GCJ',
1019 'lder' => 'GCJLD',
1020 'ld' => '$(GCJ)',
1021 'pure' => 1,
1022 'extensions' => ['.java', '.class', '.zip', '.jar']);
1024 ################################################################
1026 # Error reporting functions.
1028 # err_am ($MESSAGE, [%OPTIONS])
1029 # -----------------------------
1030 # Uncategorized errors about the current Makefile.am.
1031 sub err_am
1032 {
1033 msg_am ('error', @_);
1034 }
1036 # err_ac ($MESSAGE, [%OPTIONS])
1037 # -----------------------------
1038 # Uncategorized errors about configure.ac.
1039 sub err_ac
1040 {
1041 msg_ac ('error', @_);
1042 }
1044 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1045 # ---------------------------------------
1046 # Messages about about the current Makefile.am.
1047 sub msg_am
1048 {
1049 my ($channel, $msg, %opts) = @_;
1050 msg $channel, "${am_file}.am", $msg, %opts;
1051 }
1053 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1054 # ---------------------------------------
1055 # Messages about about configure.ac.
1056 sub msg_ac
1057 {
1058 my ($channel, $msg, %opts) = @_;
1059 msg $channel, $configure_ac, $msg, %opts;
1060 }
1062 ################################################################
1064 # subst ($TEXT)
1065 # -------------
1066 # Return a configure-style substitution using the indicated text.
1067 # We do this to avoid having the substitutions directly in automake.in;
1068 # when we do that they are sometimes removed and this causes confusion
1069 # and bugs.
1070 sub subst
1071 {
1072 my ($text) = @_;
1073 return '@' . $text . '@';
1074 }
1076 ################################################################
1079 # $BACKPATH
1080 # backname ($RELDIR)
1081 # -------------------
1082 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1083 # For instance 'src/foo' => '../..'.
1084 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1085 sub backname
1086 {
1087 my ($file) = @_;
1088 my @res;
1089 foreach (split (/\//, $file))
1090 {
1091 next if $_ eq '.' || $_ eq '';
1092 if ($_ eq '..')
1093 {
1094 pop @res
1095 or prog_error ("trying to reverse path '$file' pointing outside tree");
1096 }
1097 else
1098 {
1099 push (@res, '..');
1100 }
1101 }
1102 return join ('/', @res) || '.';
1103 }
1105 ################################################################
1107 # Silent rules handling functions.
1109 # verbose_var (NAME)
1110 # ------------------
1111 # The public variable stem used to implement silent rules.
1112 sub verbose_var
1113 {
1114 my ($name) = @_;
1115 return 'AM_V_' . $name;
1116 }
1118 # verbose_private_var (NAME)
1119 # --------------------------
1120 # The naming policy for the private variables for silent rules.
1121 sub verbose_private_var
1122 {
1123 my ($name) = @_;
1124 return 'am__v_' . $name;
1125 }
1127 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1128 # ----------------------------------------------------------
1129 # For silent rules, setup VAR and dispatcher, to expand to
1130 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1131 # empty) if not.
1132 sub define_verbose_var
1133 {
1134 my ($name, $silent_val, $verbose_val) = @_;
1135 $verbose_val = '' unless defined $verbose_val;
1136 my $var = verbose_var ($name);
1137 my $pvar = verbose_private_var ($name);
1138 my $silent_var = $pvar . '_0';
1139 my $verbose_var = $pvar . '_1';
1140 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1141 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1142 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1143 # See AM_SILENT_RULES in m4/silent.m4.
1144 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1145 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1146 INTERNAL);
1147 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1148 $silent_val, '', INTERNAL, VAR_ASIS)
1149 if (! vardef ($silent_var, TRUE));
1150 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1151 $verbose_val, '', INTERNAL, VAR_ASIS)
1152 if (! vardef ($verbose_var, TRUE));
1153 }
1155 # verbose_flag (NAME)
1156 # -------------------
1157 # Contents of '%VERBOSE%' variable to expand before rule command.
1158 sub verbose_flag
1159 {
1160 my ($name) = @_;
1161 return '$(' . verbose_var ($name) . ')';
1162 }
1164 sub verbose_nodep_flag
1165 {
1166 my ($name) = @_;
1167 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1168 }
1170 # silent_flag
1171 # -----------
1172 # Contents of %SILENT%: variable to expand to '@' when silent.
1173 sub silent_flag ()
1174 {
1175 return verbose_flag ('at');
1176 }
1178 # define_verbose_tagvar (NAME)
1179 # ----------------------------
1180 # Engage the needed silent rules machinery for tag NAME.
1181 sub define_verbose_tagvar
1182 {
1183 my ($name) = @_;
1184 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1185 }
1187 # Engage the needed silent rules machinery for assorted texinfo commands.
1188 sub define_verbose_texinfo ()
1189 {
1190 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1191 foreach my $tag (@tagvars)
1192 {
1193 define_verbose_tagvar($tag);
1194 }
1195 define_verbose_var('texinfo', '-q');
1196 define_verbose_var('texidevnull', '> /dev/null');
1197 }
1199 # Engage the needed silent rules machinery for 'libtool --silent'.
1200 sub define_verbose_libtool ()
1201 {
1202 define_verbose_var ('lt', '--silent');
1203 return verbose_flag ('lt');
1204 }
1206 sub handle_silent ()
1207 {
1208 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1209 # used in make recipes to determine whether we are being run in
1210 # silent mode or not. The choice of the name derives from the LISP
1211 # convention of appending the letter 'P' to denote a predicate (see
1212 # also "the '-P' convention" in the Jargon File); we do so for lack
1213 # of a better convention.
1214 define_verbose_var ('P', 'false', ':');
1215 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1216 define_verbose_tagvar ('GEN');
1217 define_verbose_var ('at', '@');
1218 }
1221 ################################################################
1224 # Handle AUTOMAKE_OPTIONS variable. Return 0 on error, 1 otherwise.
1225 sub handle_options ()
1226 {
1227 my $var = var ('AUTOMAKE_OPTIONS');
1228 if ($var)
1229 {
1230 if ($var->has_conditional_contents)
1231 {
1232 msg_var ('unsupported', $var,
1233 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1234 }
1235 my @options = map { { option => $_->[1], where => $_->[0] } }
1236 $var->value_as_list_recursive (cond_filter => TRUE,
1237 location => 1);
1238 return 0 unless process_option_list (@options);
1239 }
1241 if ($strictness == GNITS)
1242 {
1243 set_option ('readme-alpha', INTERNAL);
1244 set_option ('std-options', INTERNAL);
1245 set_option ('check-news', INTERNAL);
1246 }
1248 return 1;
1249 }
1251 # shadow_unconditionally ($varname, $where)
1252 # -----------------------------------------
1253 # Return a $(variable) that contains all possible values
1254 # $varname can take.
1255 # If the VAR wasn't defined conditionally, return $(VAR).
1256 # Otherwise we create an am__VAR_DIST variable which contains
1257 # all possible values, and return $(am__VAR_DIST).
1258 sub shadow_unconditionally
1259 {
1260 my ($varname, $where) = @_;
1261 my $var = var $varname;
1262 if ($var->has_conditional_contents)
1263 {
1264 $varname = "am__${varname}_DIST";
1265 my @files = uniq ($var->value_as_list_recursive);
1266 define_pretty_variable ($varname, TRUE, $where, @files);
1267 }
1268 return "\$($varname)"
1269 }
1271 # check_user_variables (@LIST)
1272 # ----------------------------
1273 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1274 # otherwise.
1275 sub check_user_variables
1276 {
1277 my @dont_override = @_;
1278 foreach my $flag (@dont_override)
1279 {
1280 my $var = var $flag;
1281 if ($var)
1282 {
1283 for my $cond ($var->conditions->conds)
1284 {
1285 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1286 {
1287 msg_cond_var ('gnu', $cond, $flag,
1288 "'$flag' is a user variable, "
1289 . "you should not override it;\n"
1290 . "use 'AM_$flag' instead");
1291 }
1292 }
1293 }
1294 }
1295 }
1297 # Call finish function for each language that was used.
1298 sub handle_languages ()
1299 {
1300 if (! option 'no-dependencies')
1301 {
1302 # Include auto-dep code. Don't include it if DEP_FILES would
1303 # be empty.
1304 if (keys %extension_seen && keys %dep_files)
1305 {
1306 my @dep_files = sort keys %dep_files;
1307 # Set location of depcomp.
1308 define_variable ('depcomp',
1309 "\$(SHELL) $am_config_aux_dir/depcomp",
1310 INTERNAL);
1311 define_variable ('am__maybe_remake_depfiles', 'depfiles', INTERNAL);
1312 define_variable ('am__depfiles_remade', "@dep_files", INTERNAL);
1313 $output_rules .= "\n";
1314 my @dist_rms;
1315 foreach my $depfile (@dep_files)
1316 {
1317 push @dist_rms, "\t-rm -f $depfile";
1318 # Generate each 'include' directive individually. Several
1319 # make implementations (IRIX 6, Solaris 10, FreeBSD 8) will
1320 # fail to properly include several files resulting from a
1321 # variable expansion. Just Generating many separate includes
1322 # seems thus safest.
1323 $output_rules .= subst ('AMDEP_TRUE') .
1324 subst ('am__include') .
1325 " " .
1326 subst('am__quote') .
1327 $depfile .
1328 subst('am__quote') .
1329 " " .
1330 "# am--include-marker\n";
1331 }
1333 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1335 $output_rules .= file_contents (
1336 'depend', new Automake::Location,
1337 'DISTRMS' => join ("\n", @dist_rms));
1338 }
1339 }
1340 else
1341 {
1342 define_variable ('depcomp', '', INTERNAL);
1343 define_variable ('am__maybe_remake_depfiles', '', INTERNAL);
1344 }
1346 my %done;
1348 # Is the C linker needed?
1349 my $needs_c = 0;
1350 foreach my $ext (sort keys %extension_seen)
1351 {
1352 next unless $extension_map{$ext};
1354 my $lang = $languages{$extension_map{$ext}};
1356 my $rule_file = $lang->rule_file || 'depend2';
1358 # Get information on $LANG.
1359 my $pfx = $lang->autodep;
1360 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1362 my ($AMDEP, $FASTDEP) =
1363 (option 'no-dependencies' || $lang->autodep eq 'no')
1364 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1366 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1367 my $verbose_nodep = ($AMDEP eq 'FALSE')
1368 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1369 my $silent = silent_flag ();
1371 my %transform = ('EXT' => $ext,
1372 'PFX' => $pfx,
1373 'FPFX' => $fpfx,
1374 'AMDEP' => $AMDEP,
1375 'FASTDEP' => $FASTDEP,
1376 '-c' => $lang->compile_flag || '',
1377 # These are not used, but they need to be defined
1378 # so transform() do not complain.
1379 SUBDIROBJ => 0,
1380 'DERIVED-EXT' => 'BUG',
1381 DIST_SOURCE => 1,
1382 VERBOSE => $verbose,
1383 'VERBOSE-NODEP' => $verbose_nodep,
1384 SILENT => $silent,
1385 );
1387 # Generate the appropriate rules for this extension.
1388 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1389 || defined $lang->compile)
1390 {
1391 # Compute a possible derived extension.
1392 # This is not used by depend2.am.
1393 my $der_ext = ($lang->output_extensions->($ext))[0];
1395 # When we output an inference rule like '.c.o:' we
1396 # have two cases to consider: either subdir-objects
1397 # is used, or it is not.
1398 #
1399 # In the latter case the rule is used to build objects
1400 # in the current directory, and dependencies always
1401 # go into './$(DEPDIR)/'. We can hard-code this value.
1402 #
1403 # In the former case the rule can be used to build
1404 # objects in sub-directories too. Dependencies should
1405 # go into the appropriate sub-directories, e.g.,
1406 # 'sub/$(DEPDIR)/'. The value of this directory
1407 # needs to be computed on-the-fly.
1408 #
1409 # DEPBASE holds the name of this directory, plus the
1410 # basename part of the object file (extensions Po, TPo,
1411 # Plo, TPlo will be added later as appropriate). It is
1412 # either hardcoded, or a shell variable ('$depbase') that
1413 # will be computed by the rule.
1414 my $depbase =
1415 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1416 $output_rules .=
1417 file_contents ($rule_file,
1418 new Automake::Location,
1419 %transform,
1420 GENERIC => 1,
1422 'DERIVED-EXT' => $der_ext,
1424 DEPBASE => $depbase,
1425 BASE => '$*',
1426 SOURCE => '$<',
1427 SOURCEFLAG => $sourceflags{$ext} || '',
1428 OBJ => '$@',
1429 OBJOBJ => '$@',
1430 LTOBJ => '$@',
1432 COMPILE => '$(' . $lang->compiler . ')',
1433 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1434 -o => $lang->output_flag,
1435 SUBDIROBJ => !! option 'subdir-objects');
1436 }
1438 # Now include code for each specially handled object with this
1439 # language.
1440 my %seen_files = ();
1441 foreach my $file (@{$lang_specific_files{$lang->name}})
1442 {
1443 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1445 # We might see a given object twice, for instance if it is
1446 # used under different conditions.
1447 next if defined $seen_files{$obj};
1448 $seen_files{$obj} = 1;
1450 prog_error ("found " . $lang->name .
1451 " in handle_languages, but compiler not defined")
1452 unless defined $lang->compile;
1454 my $obj_compile = $lang->compile;
1456 # Rewrite each occurrence of 'AM_$flag' in the compile
1457 # rule into '${derived}_$flag' if it exists.
1458 for my $flag (@{$lang->flags})
1459 {
1460 my $val = "${derived}_$flag";
1461 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1462 if set_seen ($val);
1463 }
1465 my $libtool_tag = '';
1466 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1467 {
1468 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1469 }
1471 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1472 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1474 my $ltverbose = define_verbose_libtool ();
1475 my $obj_ltcompile =
1476 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1477 . "--mode=compile $obj_compile";
1479 # We _need_ '-o' for per object rules.
1480 my $output_flag = $lang->output_flag || '-o';
1482 my $depbase = dirname ($obj);
1483 $depbase = ''
1484 if $depbase eq '.';
1485 $depbase .= '/'
1486 unless $depbase eq '';
1487 $depbase .= '$(DEPDIR)/' . basename ($obj);
1489 $output_rules .=
1490 file_contents ($rule_file,
1491 new Automake::Location,
1492 %transform,
1493 GENERIC => 0,
1495 DEPBASE => $depbase,
1496 BASE => $obj,
1497 SOURCE => $source,
1498 SOURCEFLAG => $sourceflags{$srcext} || '',
1499 # Use $myext and not '.o' here, in case
1500 # we are actually building a new source
1501 # file -- e.g. via yacc.
1502 OBJ => "$obj$myext",
1503 OBJOBJ => "$obj.obj",
1504 LTOBJ => "$obj.lo",
1506 VERBOSE => $verbose,
1507 'VERBOSE-NODEP' => $verbose_nodep,
1508 SILENT => $silent,
1509 COMPILE => $obj_compile,
1510 LTCOMPILE => $obj_ltcompile,
1511 -o => $output_flag,
1512 %file_transform);
1513 }
1515 # The rest of the loop is done once per language.
1516 next if defined $done{$lang};
1517 $done{$lang} = 1;
1519 # Load the language dependent Makefile chunks.
1520 my %lang = map { uc ($_) => 0 } keys %languages;
1521 $lang{uc ($lang->name)} = 1;
1522 $output_rules .= file_contents ('lang-compile',
1523 new Automake::Location,
1524 %transform, %lang);
1526 # If the source to a program consists entirely of code from a
1527 # 'pure' language, for instance C++ or Fortran 77, then we
1528 # don't need the C compiler code. However if we run into
1529 # something unusual then we do generate the C code. There are
1530 # probably corner cases here that do not work properly.
1531 # People linking Java code to Fortran code deserve pain.
1532 $needs_c ||= ! $lang->pure;
1534 define_compiler_variable ($lang)
1535 if ($lang->compile);
1537 define_linker_variable ($lang)
1538 if ($lang->link);
1540 require_variables ("$am_file.am", $lang->Name . " source seen",
1541 TRUE, @{$lang->config_vars});
1543 # Call the finisher.
1544 $lang->finish;
1546 # Flags listed in '->flags' are user variables (per GNU Standards),
1547 # they should not be overridden in the Makefile...
1548 my @dont_override = @{$lang->flags};
1549 # ... and so is LDFLAGS.
1550 push @dont_override, 'LDFLAGS' if $lang->link;
1552 check_user_variables @dont_override;
1553 }
1555 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1556 # suffix rule was learned), don't bother with the C stuff. But if
1557 # anything else creeps in, then use it.
1558 my @languages_seen = map { $languages{$extension_map{$_}}->name }
1559 (keys %extension_seen);
1560 @languages_seen = uniq (@languages_seen);
1561 $needs_c = 1 if @languages_seen > 1;
1562 if ($need_link || $needs_c)
1563 {
1564 define_compiler_variable ($languages{'c'})
1565 unless defined $done{$languages{'c'}};
1566 define_linker_variable ($languages{'c'});
1567 }
1568 }
1571 # append_exeext { PREDICATE } $MACRO
1572 # ----------------------------------
1573 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1574 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1575 # ignored.
1576 #
1577 # This is typically used on all filenames of *_PROGRAMS, and filenames
1578 # of TESTS that are programs.
1579 sub append_exeext (&$)
1580 {
1581 my ($pred, $macro) = @_;
1583 transform_variable_recursively
1584 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1585 sub {
1586 my ($subvar, $val, $cond, $full_cond) = @_;
1587 # Append $(EXEEXT) unless the user did it already, or it's a
1588 # @substitution@.
1589 $val .= '$(EXEEXT)'
1590 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1591 return $val;
1592 });
1593 }
1596 # Check to make sure a source defined in LIBOBJS is not explicitly
1597 # mentioned. This is a separate function (as opposed to being inlined
1598 # in handle_source_transform) because it isn't always appropriate to
1599 # do this check.
1600 sub check_libobjs_sources
1601 {
1602 my ($one_file, $unxformed) = @_;
1604 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1605 'dist_EXTRA_', 'nodist_EXTRA_')
1606 {
1607 my @files;
1608 my $varname = $prefix . $one_file . '_SOURCES';
1609 my $var = var ($varname);
1610 if ($var)
1611 {
1612 @files = $var->value_as_list_recursive;
1613 }
1614 elsif ($prefix eq '')
1615 {
1616 @files = ($unxformed . '.c');
1617 }
1618 else
1619 {
1620 next;
1621 }
1623 foreach my $file (@files)
1624 {
1625 err_var ($prefix . $one_file . '_SOURCES',
1626 "automatically discovered file '$file' should not" .
1627 " be explicitly mentioned")
1628 if defined $libsources{$file};
1629 }
1630 }
1631 }
1634 # @OBJECTS
1635 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1636 # -----------------------------------------------------------------------------
1637 # Does much of the actual work for handle_source_transform.
1638 # Arguments are:
1639 # $VAR is the name of the variable that the source filenames come from
1640 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1641 # $DERIVED is the name of resulting executable or library
1642 # $OBJ is the object extension (e.g., '.lo')
1643 # $FILE the source file to transform
1644 # %TRANSFORM contains extras arguments to pass to file_contents
1645 # when producing explicit rules
1646 # Result is a list of the names of objects
1647 # %linkers_used will be updated with any linkers needed
1648 sub handle_single_transform
1649 {
1650 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1651 my @files = ($_file);
1652 my @result = ();
1654 # Turn sources into objects. We use a while loop like this
1655 # because we might add to @files in the loop.
1656 while (scalar @files > 0)
1657 {
1658 $_ = shift @files;
1660 # Configure substitutions in _SOURCES variables are errors.
1661 if (/^\@.*\@$/)
1662 {
1663 my $parent_msg = '';
1664 $parent_msg = "\nand is referred to from '$topparent'"
1665 if $topparent ne $var->name;
1666 err_var ($var,
1667 "'" . $var->name . "' includes configure substitution '$_'"
1668 . $parent_msg . ";\nconfigure " .
1669 "substitutions are not allowed in _SOURCES variables");
1670 next;
1671 }
1673 # If the source file is in a subdirectory then the '.o' is put
1674 # into the current directory, unless the subdir-objects option
1675 # is in effect.
1677 # Split file name into base and extension.
1678 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1679 my $full = $_;
1680 my $directory = $1 || '';
1681 my $base = $2;
1682 my $extension = $3;
1684 # We must generate a rule for the object if it requires its own flags.
1685 my $renamed = 0;
1686 my ($linker, $object);
1688 # This records whether we've seen a derived source file (e.g., yacc
1689 # or lex output).
1690 my $derived_source;
1692 # This holds the 'aggregate context' of the file we are
1693 # currently examining. If the file is compiled with
1694 # per-object flags, then it will be the name of the object.
1695 # Otherwise it will be 'AM'. This is used by the target hook
1696 # language function.
1697 my $aggregate = 'AM';
1699 $extension = derive_suffix ($extension, $obj);
1700 my $lang;
1701 if ($extension_map{$extension} &&
1702 ($lang = $languages{$extension_map{$extension}}))
1703 {
1704 # Found the language, so see what it says.
1705 saw_extension ($extension);
1707 # Do we have per-executable flags for this executable?
1708 my $have_per_exec_flags = 0;
1709 my @peflags = @{$lang->flags};
1710 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1711 foreach my $flag (@peflags)
1712 {
1713 if (set_seen ("${derived}_$flag"))
1714 {
1715 $have_per_exec_flags = 1;
1716 last;
1717 }
1718 }
1720 # Note: computed subr call. The language rewrite function
1721 # should return one of the LANG_* constants. It could
1722 # also return a list whose first value is such a constant
1723 # and whose second value is a new source extension which
1724 # should be applied. This means this particular language
1725 # generates another source file which we must then process
1726 # further.
1727 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1728 defined &$subr or $subr = \&lang_sub_obj;
1729 my ($r, $source_extension)
1730 = &$subr ($directory, $base, $extension,
1731 $obj, $have_per_exec_flags, $var);
1732 # Skip this entry if we were asked not to process it.
1733 next if $r == LANG_IGNORE;
1735 # Now extract linker and other info.
1736 $linker = $lang->linker;
1738 my $this_obj_ext;
1739 if (defined $source_extension)
1740 {
1741 $this_obj_ext = $source_extension;
1742 $derived_source = 1;
1743 }
1744 else
1745 {
1746 $this_obj_ext = $obj;
1747 $derived_source = 0;
1748 # Don't ever place built object files in $(srcdir),
1749 # even when sources are specified explicitly as (say)
1750 # '$(srcdir)/foo.c' or '$(top_srcdir)/foo.c'.
1751 # See automake bug#13928.
1752 my @d = split '/', $directory;
1753 if (@d > 0 && option 'subdir-objects')
1754 {
1755 my $d = $d[0];
1756 if ($d eq '$(srcdir)' or $d eq '${srcdir}')
1757 {
1758 shift @d;
1759 }
1760 elsif ($d eq '$(top_srcdir)' or $d eq '${top_srcdir}')
1761 {
1762 $d[0] = '$(top_builddir)';
1763 }
1764 $directory = join '/', @d;
1765 }
1766 }
1767 $object = $base . $this_obj_ext;
1769 if ($have_per_exec_flags)
1770 {
1771 # We have a per-executable flag in effect for this
1772 # object. In this case we rewrite the object's
1773 # name to ensure it is unique.
1775 # We choose the name 'DERIVED_OBJECT' to ensure (1) uniqueness,
1776 # and (2) continuity between invocations. However, this will
1777 # result in a name that is too long for losing systems, in some
1778 # situations. So we attempt to shorten automatically under
1779 # subdir-objects, and provide _SHORTNAME to override as a last
1780 # resort. If subdir-object is in effect, it's usually
1781 # unnecessary to use the complete 'DERIVED_OBJECT' (that is
1782 # often the result from %canon_reldir%/%C% usage) since objects
1783 # are placed next to their source file. Generally, this means
1784 # it is already unique within that directory (see below for an
1785 # exception). Thus, we try to avoid unnecessarily long file
1786 # names by stripping the directory components of
1787 # 'DERIVED_OBJECT'. This allows avoiding explicit _SHORTNAME
1788 # usage in many cases. EXCEPTION: If two (or more) targets in
1789 # different directories but with the same base name (after
1790 # canonicalization), using target-specific FLAGS, link the same
1791 # object, then this logic clashes. Thus, we don't strip if
1792 # this is detected.
1793 my $dname = $derived;
1794 if ($directory ne ''
1795 && option 'subdir-objects'
1796 && none { $dname =~ /$_[0]$/ } @dup_shortnames)
1797 {
1798 # At this point, we don't clear information about what
1799 # parts of $derived are truly file name components. We can
1800 # determine that by comparing against the canonicalization
1801 # of $directory.
1802 my $dir = $directory . "/";
1803 my $cdir = canonicalize ($dir);
1804 my $dir_len = length ($dir);
1805 # Make sure we only strip full file name components. This
1806 # is done by repeatedly trying to find cdir at the
1807 # beginning. Each iteration removes one file name
1808 # component from the end of cdir.
1809 while ($dir_len > 0 && index ($derived, $cdir) != 0)
1810 {
1811 # Eventually $dir_len becomes 0.
1812 $dir_len = rindex ($dir, "/", $dir_len - 2) + 1;
1813 $cdir = substr ($cdir, 0, $dir_len);
1814 }
1815 $dname = substr ($derived, $dir_len);
1816 }
1817 my $var = var ($derived . '_SHORTNAME');
1818 if ($var)
1819 {
1820 # FIXME: should use the same Condition as
1821 # the _SOURCES variable. But this is really
1822 # silly overkill -- nobody should have
1823 # conditional shortnames.
1824 $dname = $var->variable_value;
1825 }
1826 $object = $dname . '-' . $object;
1828 prog_error ($lang->name . " flags defined without compiler")
1829 if ! defined $lang->compile;
1831 $renamed = 1;
1832 }
1834 # If rewrite said it was ok, put the object into a subdir.
1835 if ($directory ne '')
1836 {
1837 if ($r == LANG_SUBDIR)
1838 {
1839 $object = $directory . '/' . $object;
1840 }
1841 else
1842 {
1843 # Since the next major version of automake (2.0) will
1844 # make the behaviour so far only activated with the
1845 # 'subdir-objects' option mandatory, it's better if we
1846 # start warning users not using that option.
1847 # As suggested by Peter Johansson, we strive to avoid
1848 # the warning when it would be irrelevant, i.e., if
1849 # all source files sit in "current" directory.
1850 #
1851 # There are problems with making this change; see
1852 # https://bugs.gnu.org/20699 before making
1853 # subdir-objects, let alone unconditional.
1854 # (Making it non-overridable seems especially wrong.)
1855 #
1856 msg_var 'unsupported', $var,
1857 "source file '$full' is in a subdirectory,"
1858 . "\nbut option 'subdir-objects' is disabled";
1859 msg 'unsupported', INTERNAL, <<'EOF', uniq_scope => US_GLOBAL;
1860 possible forward-incompatibility.
1861 At least one source file is in a subdirectory, but the 'subdir-objects'
1862 automake option hasn't been enabled. For now, the corresponding output
1863 object file(s) will be placed in the top-level directory. However, this
1864 behavior may change in a future Automake major version, with object
1865 files being placed in the same subdirectory as the corresponding sources.
1866 You are advised to start using 'subdir-objects' option throughout your
1867 project, to avoid future incompatibilities.
1868 EOF
1869 }
1870 }
1872 # If the object file has been renamed (because per-target
1873 # flags are used) we cannot compile the file with an
1874 # inference rule: we need an explicit rule.
1875 #
1876 # If the source is in a subdirectory and the object is in
1877 # the current directory, we also need an explicit rule.
1878 #
1879 # If both source and object files are in a subdirectory
1880 # (this happens when the subdir-objects option is used),
1881 # then the inference will work.
1882 #
1883 # The latter case deserves a historical note. When the
1884 # subdir-objects option was added on 1999-04-11 it was
1885 # thought that inferences rules would work for
1886 # subdirectory objects too. Later, on 1999-11-22,
1887 # automake was changed to output explicit rules even for
1888 # subdir-objects. Nobody remembers why, but this occurred
1889 # soon after the merge of the user-dep-gen-branch so it
1890 # might be related. In late 2003 people complained about
1891 # the size of the generated Makefile.ins (libgcj, with
1892 # 2200+ subdir objects was reported to have a 9MB
1893 # Makefile), so we now rely on inference rules again.
1894 # Maybe we'll run across the same issue as in the past,
1895 # but at least this time we can document it. However since
1896 # dependency tracking has evolved it is possible that
1897 # our old problem no longer exists.
1898 # Using inference rules for subdir-objects has been tested
1899 # with GNU make, Solaris make, Ultrix make, BSD make,
1900 # HP-UX make, and OSF1 make successfully.
1901 if ($renamed
1902 || ($directory ne '' && ! option 'subdir-objects')
1903 # We must also use specific rules for a nodist_ source
1904 # if its language requests it.
1905 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1906 {
1907 my $obj_sans_ext = substr ($object, 0,
1908 - length ($this_obj_ext));
1909 my $full_ansi;
1910 if ($directory ne '')
1911 {
1912 $full_ansi = $directory . '/' . $base . $extension;
1913 }
1914 else
1915 {
1916 $full_ansi = $base . $extension;
1917 }
1919 my @specifics = ($full_ansi, $obj_sans_ext,
1920 # Only use $this_obj_ext in the derived
1921 # source case because in the other case we
1922 # *don't* want $(OBJEXT) to appear here.
1923 ($derived_source ? $this_obj_ext : '.o'),
1924 $extension);
1926 # If we renamed the object then we want to use the
1927 # per-executable flag name. But if this is simply a
1928 # subdir build then we still want to use the AM_ flag
1929 # name.
1930 if ($renamed)
1931 {
1932 unshift @specifics, $derived;
1933 $aggregate = $derived;
1934 }
1935 else
1936 {
1937 unshift @specifics, 'AM';
1938 }
1940 # Each item on this list is a reference to a list consisting
1941 # of four values followed by additional transform flags for
1942 # file_contents. The four values are the derived flag prefix
1943 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1944 # source file, the base name of the output file, and
1945 # the extension for the object file.
1946 push (@{$lang_specific_files{$lang->name}},
1947 [@specifics, %transform]);
1948 }
1949 }
1950 elsif ($extension eq $obj)
1951 {
1952 # This is probably the result of a direct suffix rule.
1953 # In this case we just accept the rewrite.
1954 $object = "$base$extension";
1955 $object = "$directory/$object" if $directory ne '';
1956 $linker = '';
1957 }
1958 else
1959 {
1960 # No error message here. Used to have one, but it was
1961 # very unpopular.
1962 # FIXME: we could potentially do more processing here,
1963 # perhaps treating the new extension as though it were a
1964 # new source extension (as above). This would require
1965 # more restructuring than is appropriate right now.
1966 next;
1967 }
1969 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1970 if (defined $object_map{$object}
1971 && $object_map{$object} ne $full);
1973 my $comp_val = (($object =~ /\.lo$/)
1974 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1975 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1976 if (defined $object_compilation_map{$comp_obj}
1977 && $object_compilation_map{$comp_obj} != 0
1978 # Only see the error once.
1979 && ($object_compilation_map{$comp_obj}
1980 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1981 && $object_compilation_map{$comp_obj} != $comp_val)
1982 {
1983 err_am "object '$comp_obj' created both with libtool and without";
1984 }
1985 $object_compilation_map{$comp_obj} |= $comp_val;
1987 if (defined $lang)
1988 {
1989 # Let the language do some special magic if required.
1990 $lang->target_hook ($aggregate, $object, $full, %transform);
1991 }
1993 if ($derived_source)
1994 {
1995 prog_error ($lang->name . " has automatic dependency tracking")
1996 if $lang->autodep ne 'no';
1997 # Make sure this new source file is handled next. That will
1998 # make it appear to be at the right place in the list.
1999 unshift (@files, $object);
2000 # Distribute derived sources unless the source they are
2001 # derived from is not.
2002 push_dist_common ($object)
2003 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2004 next;
2005 }
2007 $linkers_used{$linker} = 1;
2009 push (@result, $object);
2011 if (! defined $object_map{$object})
2012 {
2013 my @dep_list = ();
2014 $object_map{$object} = $full;
2016 # If resulting object is in subdir, we need to make
2017 # sure the subdir exists at build time.
2018 if ($object =~ /\//)
2019 {
2020 # FIXME: check that $DIRECTORY is somewhere in the
2021 # project
2023 # For Java, the way we're handling it right now, a
2024 # '..' component doesn't make sense.
2025 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2026 {
2027 err_am "'$full' should not contain a '..' component";
2028 }
2030 # Make sure *all* objects files in the subdirectory are
2031 # removed by "make mostlyclean". Not only this is more
2032 # efficient than listing the object files to be removed
2033 # individually (which would cause an 'rm' invocation for
2034 # each of them -- very inefficient, see bug#10697), it
2035 # would also leave stale object files in the subdirectory
2036 # whenever a source file there is removed or renamed.
2037 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
2038 if ($object =~ /\.lo$/)
2039 {
2040 # If we have a libtool object, then we also must remove
2041 # any '.lo' objects in its same subdirectory.
2042 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
2043 # Remember to cleanup .libs/ in this directory.
2044 $libtool_clean_directories{$directory} = 1;
2045 }
2047 push (@dep_list, require_build_directory ($directory));
2049 # If we're generating dependencies, we also want
2050 # to make sure that the appropriate subdir of the
2051 # .deps directory is created.
2052 push (@dep_list,
2053 require_build_directory ($directory . '/$(DEPDIR)'))
2054 unless option 'no-dependencies';
2055 }
2057 pretty_print_rule ($object . ':', "\t", @dep_list)
2058 if scalar @dep_list > 0;
2059 }
2061 # Transform .o or $o file into .P file (for automatic
2062 # dependency code).
2063 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2064 # might fail over them in an include statement.
2065 # Leading double slashes may be special, as per Posix, so deal
2066 # with them carefully.
2067 if ($lang && $lang->autodep ne 'no')
2068 {
2069 my $depfile = $object;
2070 $depfile =~ s/\.([^.]*)$/.P$1/;
2071 $depfile =~ s/\$\(OBJEXT\)$/o/;
2072 my $maybe_extra_leading_slash = '';
2073 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2074 $depfile =~ s,/+,/,g;
2075 my $basename = basename ($depfile);
2076 # This might make $dirname empty, but we account for that below.
2077 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2078 $dirname = $maybe_extra_leading_slash . $dirname;
2079 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2080 }
2081 }
2083 return @result;
2084 }
2087 # $LINKER
2088 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2089 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2090 # ---------------------------------------------------------------------------
2091 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2092 #
2093 # Arguments are:
2094 # $VAR is the name of the _SOURCES variable
2095 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2096 # it will be generated and returned).
2097 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2098 # work done to determine the linker will be).
2099 # $ONE_FILE is the canonical (transformed) name of object to build
2100 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2101 # $TOPPARENT is the _SOURCES variable being processed.
2102 # $WHERE context into which this definition is done
2103 # %TRANSFORM extra arguments to pass to file_contents when producing
2104 # rules
2105 #
2106 # Result is a pair ($LINKER, $OBJVAR):
2107 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2108 sub define_objects_from_sources
2109 {
2110 my ($var, $objvar, $nodefine, $one_file,
2111 $obj, $topparent, $where, %transform) = @_;
2113 my $needlinker = "";
2115 transform_variable_recursively
2116 ($var, $objvar, 'am__objects', $nodefine, $where,
2117 # The transform code to run on each filename.
2118 sub {
2119 my ($subvar, $val, $cond, $full_cond) = @_;
2120 my @trans = handle_single_transform ($subvar, $topparent,
2121 $one_file, $obj, $val,
2122 %transform);
2123 $needlinker = "true" if @trans;
2124 return @trans;
2125 });
2127 return $needlinker;
2128 }
2131 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2132 # -----------------------------------------------------------------------------
2133 # Handle SOURCE->OBJECT transform for one program or library.
2134 # Arguments are:
2135 # canonical (transformed) name of target to build
2136 # actual target of object to build
2137 # object extension (i.e., either '.o' or '$o')
2138 # location of the source variable
2139 # extra arguments to pass to file_contents when producing rules
2140 # Return the name of the linker variable that must be used.
2141 # Empty return means just use 'LINK'.
2142 sub handle_source_transform
2143 {
2144 # one_file is canonical name. unxformed is given name. obj is
2145 # object extension.
2146 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2148 my $linker = '';
2150 # No point in continuing if _OBJECTS is defined.
2151 return if reject_var ($one_file . '_OBJECTS',
2152 $one_file . '_OBJECTS should not be defined');
2154 my %used_pfx = ();
2155 my $needlinker;
2156 %linkers_used = ();
2157 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2158 'dist_EXTRA_', 'nodist_EXTRA_')
2159 {
2160 my $varname = $prefix . $one_file . "_SOURCES";
2161 my $var = var $varname;
2162 next unless $var;
2164 # We are going to define _OBJECTS variables using the prefix.
2165 # Then we glom them all together. So we can't use the null
2166 # prefix here as we need it later.
2167 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2169 # Keep track of which prefixes we saw.
2170 $used_pfx{$xpfx} = 1
2171 unless $prefix =~ /EXTRA_/;
2173 push @sources, "\$($varname)";
2174 push @dist_sources, shadow_unconditionally ($varname, $where)
2175 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2177 $needlinker |=
2178 define_objects_from_sources ($varname,
2179 $xpfx . $one_file . '_OBJECTS',
2180 !!($prefix =~ /EXTRA_/),
2181 $one_file, $obj, $varname, $where,
2182 DIST_SOURCE => ($prefix !~ /^nodist_/),
2183 %transform);
2184 }
2185 if ($needlinker)
2186 {
2187 $linker ||= resolve_linker (%linkers_used);
2188 }
2190 my @keys = sort keys %used_pfx;
2191 if (scalar @keys == 0)
2192 {
2193 # The default source for libfoo.la is libfoo.c, but for
2194 # backward compatibility we first look at libfoo_la.c,
2195 # if no default source suffix is given.
2196 my $old_default_source = "$one_file.c";
2197 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2198 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2199 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2200 if $default_source_ext =~ /[\t ]/;
2201 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2202 # TODO: Remove this backward-compatibility hack in Automake 2.0.
2203 if ($old_default_source ne $default_source
2204 && !$ext_var
2205 && (rule $old_default_source
2206 || rule '$(srcdir)/' . $old_default_source
2207 || rule '${srcdir}/' . $old_default_source
2208 || -f $old_default_source))
2209 {
2210 my $loc = $where->clone;
2211 $loc->pop_context;
2212 msg ('obsolete', $loc,
2213 "the default source for '$unxformed' has been changed "
2214 . "to '$default_source'.\n(Using '$old_default_source' for "
2215 . "backward compatibility.)");
2216 $default_source = $old_default_source;
2217 }
2218 # If a rule exists to build this source with a $(srcdir)
2219 # prefix, use that prefix in our variables too. This is for
2220 # the sake of BSD Make.
2221 if (rule '$(srcdir)/' . $default_source
2222 || rule '${srcdir}/' . $default_source)
2223 {
2224 $default_source = '$(srcdir)/' . $default_source;
2225 }
2227 define_variable ($one_file . "_SOURCES", $default_source, $where);
2228 push (@sources, $default_source);
2229 push (@dist_sources, $default_source);
2231 %linkers_used = ();
2232 my (@result) =
2233 handle_single_transform ($one_file . '_SOURCES',
2234 $one_file . '_SOURCES',
2235 $one_file, $obj,
2236 $default_source, %transform);
2237 $linker ||= resolve_linker (%linkers_used);
2238 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2239 }
2240 else
2241 {
2242 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2243 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2244 }
2246 # If we want to use 'LINK' we must make sure it is defined.
2247 if ($linker eq '')
2248 {
2249 $need_link = 1;
2250 }
2252 return $linker;
2253 }
2256 # handle_lib_objects ($XNAME, $VAR)
2257 # ---------------------------------
2258 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2259 # Also, generate _DEPENDENCIES variable if appropriate.
2260 # Arguments are:
2261 # transformed name of object being built, or empty string if no object
2262 # name of _LDADD/_LIBADD-type variable to examine
2263 # Returns 1 if LIBOBJS seen, 0 otherwise.
2264 sub handle_lib_objects
2265 {
2266 my ($xname, $varname) = @_;
2268 my $var = var ($varname);
2269 prog_error "'$varname' undefined"
2270 unless $var;
2271 prog_error "unexpected variable name '$varname'"
2272 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2273 my $prefix = $1 || 'AM_';
2275 my $seen_libobjs = 0;
2276 my $flagvar = 0;
2278 transform_variable_recursively
2279 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2280 ! $xname, INTERNAL,
2281 # Transformation function, run on each filename.
2282 sub {
2283 my ($subvar, $val, $cond, $full_cond) = @_;
2285 if ($val =~ /^-/)
2286 {
2287 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2288 if ($val !~ /^-[lL]/ &&
2289 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2290 # for Libtool libraries or programs. (Actually we are a bit
2291 # lax here since this code also applies to non-libtool
2292 # libraries or programs, for which -dlopen and -dlopreopen
2293 # are pure nonsense. Diagnosing this doesn't seem very
2294 # important: the developer will quickly get complaints from
2295 # the linker.)
2296 $val !~ /^-dl(?:pre)?open$/ &&
2297 # Only get this error once.
2298 ! $flagvar)
2299 {
2300 $flagvar = 1;
2301 # FIXME: should display a stack of nested variables
2302 # as context when $var != $subvar.
2303 err_var ($var, "linker flags such as '$val' belong in "
2304 . "'${prefix}LDFLAGS'");
2305 }
2306 return ();
2307 }
2308 elsif ($val !~ /^\@.*\@$/)
2309 {
2310 # Assume we have a file of some sort, and output it into the
2311 # dependency variable. Autoconf substitutions are not output;
2312 # rarely is a new dependency substituted into e.g. foo_LDADD
2313 # -- but bad things (e.g. -lX11) are routinely substituted.
2314 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2315 # and handled specially below.
2316 return $val;
2317 }
2318 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2319 {
2320 handle_LIBOBJS ($subvar, $cond, $1);
2321 $seen_libobjs = 1;
2322 return $val;
2323 }
2324 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2325 {
2326 handle_ALLOCA ($subvar, $cond, $1);
2327 return $val;
2328 }
2329 else
2330 {
2331 return ();
2332 }
2333 });
2335 return $seen_libobjs;
2336 }
2338 # handle_LIBOBJS_or_ALLOCA ($VAR, $BASE)
2339 # --------------------------------------
2340 # Definitions common to LIBOBJS and ALLOCA.
2341 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2342 # BASE should be one base file name from AC_LIBSOURCE, or alloca.
2343 sub handle_LIBOBJS_or_ALLOCA
2344 {
2345 my ($var, $base) = @_;
2347 my $dir = '';
2349 # If LIBOBJS files must be built in another directory we have
2350 # to define LIBOBJDIR and ensure the files get cleaned.
2351 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2352 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2353 if ($config_libobj_dir
2354 && $relative_dir ne $config_libobj_dir)
2355 {
2356 if (option 'subdir-objects')
2357 {
2358 # In the top-level Makefile we do not use $(top_builddir), because
2359 # we are already there, and since the targets are built without
2360 # a $(top_builddir), it helps BSD Make to match them with
2361 # dependencies.
2362 $dir = "$config_libobj_dir/"
2363 if $config_libobj_dir ne '.';
2364 $dir = backname ($relative_dir) . "/$dir"
2365 if $relative_dir ne '.';
2366 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2367 if ($dir && !defined $clean_files{"$dir$base.\$(OBJEXT)"})
2368 {
2369 my $dirstamp = require_build_directory ($dir);
2370 $output_rules .= "$dir$base.\$(OBJEXT): $dirstamp\n";
2371 $output_rules .= "$dir$base.lo: $dirstamp\n"
2372 if ($var =~ /^LT/);
2373 }
2374 # libtool might create .$(OBJEXT) as a side-effect of using
2375 # LTLIBOBJS or LTALLOCA.
2376 $clean_files{"$dir$base.\$(OBJEXT)"} = MOSTLY_CLEAN;
2377 $clean_files{"$dir$base.lo"} = MOSTLY_CLEAN
2378 if ($var =~ /^LT/);
2379 }
2380 else
2381 {
2382 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2383 . " 'subdir-objects' is not set");
2384 }
2385 }
2387 return $dir;
2388 }
2390 sub handle_LIBOBJS
2391 {
2392 my ($var, $cond, $lt) = @_;
2393 my $myobjext = $lt ? 'lo' : 'o';
2394 $lt ||= '';
2396 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2397 if ! keys %libsources;
2399 foreach my $iter (sort keys %libsources)
2400 {
2401 my $dir = '';
2402 if ($iter =~ /^(.*)(\.[cly])$/)
2403 {
2404 saw_extension ($2);
2405 saw_extension ('.c');
2406 $dir = handle_LIBOBJS_or_ALLOCA ("${lt}LIBOBJS", $1);
2407 }
2409 if ($iter =~ /\.h$/)
2410 {
2411 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2412 }
2413 elsif ($iter ne 'alloca.c')
2414 {
2415 my $rewrite = $iter;
2416 $rewrite =~ s/\.c$/.P$myobjext/;
2417 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2418 $rewrite = "^" . quotemeta ($iter) . "\$";
2419 # Only require the file if it is not a built source.
2420 my $bs = var ('BUILT_SOURCES');
2421 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2422 {
2423 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2424 }
2425 }
2426 }
2427 }
2429 sub handle_ALLOCA
2430 {
2431 my ($var, $cond, $lt) = @_;
2432 my $myobjext = $lt ? 'lo' : 'o';
2433 $lt ||= '';
2434 my $dir = handle_LIBOBJS_or_ALLOCA ("${lt}ALLOCA", "alloca");
2436 $dir eq '' and $dir = './';
2437 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2438 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2439 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2440 saw_extension ('.c');
2441 }
2443 # Canonicalize the input parameter.
2444 sub canonicalize
2445 {
2446 my ($string) = @_;
2447 $string =~ tr/A-Za-z0-9_\@/_/c;
2448 return $string;
2449 }
2451 # Canonicalize a name, and check to make sure the non-canonical name
2452 # is never used. Returns canonical name. Arguments are name and a
2453 # list of suffixes to check for.
2454 sub check_canonical_spelling
2455 {
2456 my ($name, @suffixes) = @_;
2458 my $xname = canonicalize ($name);
2459 if ($xname ne $name)
2460 {
2461 foreach my $xt (@suffixes)
2462 {
2463 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2464 }
2465 }
2467 return $xname;
2468 }
2470 # Set up the compile suite.
2471 sub handle_compile ()
2472 {
2473 return if ! $must_handle_compiled_objects;
2475 # Boilerplate.
2476 my $default_includes = '';
2477 if (! option 'nostdinc')
2478 {
2479 my @incs = ('-I.', subst ('am__isrc'));
2481 my $var = var 'CONFIG_HEADER';
2482 if ($var)
2483 {
2484 foreach my $hdr (split (' ', $var->variable_value))
2485 {
2486 push @incs, '-I' . dirname ($hdr);
2487 }
2488 }
2489 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2490 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2491 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2492 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2493 # to just put @am__isrc@ right after '-I.', without a space.
2494 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2495 }
2497 my (@mostly_rms, @dist_rms);
2498 foreach my $item (sort keys %compile_clean_files)
2499 {
2500 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2501 {
2502 push (@mostly_rms, "\t-rm -f $item");
2503 }
2504 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2505 {
2506 push (@dist_rms, "\t-rm -f $item");
2507 }
2508 else
2509 {
2510 prog_error 'invalid entry in %compile_clean_files';
2511 }
2512 }
2514 my ($coms, $vars, $rules) =
2515 file_contents_internal (1, "$libdir/am/compile.am",
2516 new Automake::Location,
2517 'DEFAULT_INCLUDES' => $default_includes,
2518 'MOSTLYRMS' => join ("\n", @mostly_rms),
2519 'DISTRMS' => join ("\n", @dist_rms));
2520 $output_vars .= $vars;
2521 $output_rules .= "$coms$rules";
2522 }
2524 # Handle libtool rules.
2525 sub handle_libtool ()
2526 {
2527 return unless var ('LIBTOOL');
2529 # Libtool requires some files, but only at top level.
2530 # (Starting with Libtool 2.0 we do not have to bother. These
2531 # requirements are done with AC_REQUIRE_AUX_FILE.)
2532 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2533 if $relative_dir eq '.' && ! $libtool_new_api;
2535 my @libtool_rms;
2536 foreach my $item (sort keys %libtool_clean_directories)
2537 {
2538 my $dir = ($item eq '.') ? '' : "$item/";
2539 # .libs is for Unix, _libs for DOS.
2540 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2541 }
2543 check_user_variables 'LIBTOOLFLAGS';
2545 # Output the libtool compilation rules.
2546 $output_rules .= file_contents ('libtool',
2547 new Automake::Location,
2548 LTRMS => join ("\n", @libtool_rms));
2549 }
2551 # Check for duplicate targets
2552 sub handle_targets ()
2553 {
2554 my %seen = ();
2555 my @dups = ();
2556 @proglist = am_install_var ('progs', 'PROGRAMS',
2557 'bin', 'sbin', 'libexec', 'pkglibexec',
2558 'noinst', 'check');
2559 @liblist = am_install_var ('libs', 'LIBRARIES',
2560 'lib', 'pkglib', 'noinst', 'check');
2561 @ltliblist = am_install_var ('ltlib', 'LTLIBRARIES',
2562 'noinst', 'lib', 'pkglib', 'check');
2564 # Record duplications that may arise after canonicalization of the
2565 # base names, in order to prevent object file clashes in the presence
2566 # of target-specific *FLAGS
2567 my @targetlist = (@proglist, @liblist, @ltliblist);
2568 foreach my $pair (@targetlist)
2569 {
2570 my $base = canonicalize (basename (@$pair[1]));
2571 push (@dup_shortnames, $base) if ($seen{$base});
2572 $seen{$base} = $base;
2573 }
2574 }
2576 sub handle_programs ()
2577 {
2578 return if ! @proglist;
2579 $must_handle_compiled_objects = 1;
2581 my $seen_global_libobjs =
2582 var ('LDADD') && handle_lib_objects ('', 'LDADD');
2584 foreach my $pair (@proglist)
2585 {
2586 my ($where, $one_file) = @$pair;
2588 my $seen_libobjs = 0;
2589 my $obj = '.$(OBJEXT)';
2591 $known_programs{$one_file} = $where;
2593 # Canonicalize names and check for misspellings.
2594 my $xname = check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2595 '_SOURCES', '_OBJECTS',
2596 '_DEPENDENCIES');
2598 $where->push_context ("while processing program '$one_file'");
2599 $where->set (INTERNAL->get);
2601 my $linker = handle_source_transform ($xname, $one_file, $obj, $where,
2602 NONLIBTOOL => 1, LIBTOOL => 0);
2604 if (var ($xname . "_LDADD"))
2605 {
2606 $seen_libobjs = handle_lib_objects ($xname, $xname . '_LDADD');
2607 }
2608 else
2609 {
2610 # User didn't define prog_LDADD override. So do it.
2611 define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2613 # This does a bit too much work. But we need it to
2614 # generate _DEPENDENCIES when appropriate.
2615 if (var ('LDADD'))
2616 {
2617 $seen_libobjs = handle_lib_objects ($xname, 'LDADD');
2618 }
2619 }
2621 reject_var ($xname . '_LIBADD',
2622 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2624 set_seen ($xname . '_DEPENDENCIES');
2625 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2626 set_seen ($xname . '_LDFLAGS');
2628 # Determine program to use for link.
2629 my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xname);
2630 $vlink = verbose_flag ($vlink || 'GEN');
2632 # If the resulting program lies in a subdirectory,
2633 # ensure that the directory exists before we need it.
2634 my $dirstamp = require_build_directory_maybe ($one_file);
2636 $libtool_clean_directories{dirname ($one_file)} = 1;
2638 $output_rules .= file_contents ('program',
2639 $where,
2640 PROGRAM => $one_file,
2641 XPROGRAM => $xname,
2642 XLINK => $xlink,
2643 VERBOSE => $vlink,
2644 DIRSTAMP => $dirstamp,
2645 EXEEXT => '$(EXEEXT)');
2647 if ($seen_libobjs || $seen_global_libobjs)
2648 {
2649 if (var ($xname . '_LDADD'))
2650 {
2651 check_libobjs_sources ($xname, $xname . '_LDADD');
2652 }
2653 elsif (var ('LDADD'))
2654 {
2655 check_libobjs_sources ($xname, 'LDADD');
2656 }
2657 }
2658 }
2659 }
2662 sub handle_libraries ()
2663 {
2664 return if ! @liblist;
2665 $must_handle_compiled_objects = 1;
2667 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2668 'noinst', 'check');
2670 if (@prefix)
2671 {
2672 my $var = rvar ($prefix[0] . '_LIBRARIES');
2673 $var->requires_variables ('library used', 'RANLIB');
2674 }
2676 define_variable ('AR', 'ar', INTERNAL);
2677 define_variable ('ARFLAGS', 'cru', INTERNAL);
2678 define_verbose_tagvar ('AR');
2680 foreach my $pair (@liblist)
2681 {
2682 my ($where, $onelib) = @$pair;
2684 my $seen_libobjs = 0;
2685 # Check that the library fits the standard naming convention.
2686 my $bn = basename ($onelib);
2687 if ($bn !~ /^lib.*\.a$/)
2688 {
2689 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2690 my $suggestion = dirname ($onelib) . "/$bn";
2691 $suggestion =~ s|^\./||g;
2692 msg ('error-gnu/warn', $where,
2693 "'$onelib' is not a standard library name\n"
2694 . "did you mean '$suggestion'?")
2695 }
2697 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2699 $where->push_context ("while processing library '$onelib'");
2700 $where->set (INTERNAL->get);
2702 my $obj = '.$(OBJEXT)';
2704 # Canonicalize names and check for misspellings.
2705 my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2706 '_OBJECTS', '_DEPENDENCIES',
2707 '_AR');
2709 if (! var ($xlib . '_AR'))
2710 {
2711 define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2712 }
2714 # Generate support for conditional object inclusion in
2715 # libraries.
2716 if (var ($xlib . '_LIBADD'))
2717 {
2718 if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2719 {
2720 $seen_libobjs = 1;
2721 }
2722 }
2723 else
2724 {
2725 define_variable ($xlib . "_LIBADD", '', $where);
2726 }
2728 reject_var ($xlib . '_LDADD',
2729 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2731 # Make sure we at look at this.
2732 set_seen ($xlib . '_DEPENDENCIES');
2733 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2735 handle_source_transform ($xlib, $onelib, $obj, $where,
2736 NONLIBTOOL => 1, LIBTOOL => 0);
2738 # If the resulting library lies in a subdirectory,
2739 # make sure this directory will exist.
2740 my $dirstamp = require_build_directory_maybe ($onelib);
2741 my $verbose = verbose_flag ('AR');
2742 my $silent = silent_flag ();
2744 $output_rules .= file_contents ('library',
2745 $where,
2746 VERBOSE => $verbose,
2747 SILENT => $silent,
2748 LIBRARY => $onelib,
2749 XLIBRARY => $xlib,
2750 DIRSTAMP => $dirstamp);
2752 if ($seen_libobjs)
2753 {
2754 if (var ($xlib . '_LIBADD'))
2755 {
2756 check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2757 }
2758 }
2760 if (! $seen_ar)
2761 {
2762 msg ('extra-portability', $where,
2763 "'$onelib': linking libraries using a non-POSIX\n"
2764 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2765 }
2766 }
2767 }
2770 sub handle_ltlibraries ()
2771 {
2772 return if ! @ltliblist;
2773 $must_handle_compiled_objects = 1;
2775 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2776 'noinst', 'check');
2778 if (@prefix)
2779 {
2780 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2781 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2782 }
2784 my %instdirs = ();
2785 my %instsubdirs = ();
2786 my %instconds = ();
2787 my %liblocations = (); # Location (in Makefile.am) of each library.
2789 foreach my $key (@prefix)
2790 {
2791 # Get the installation directory of each library.
2792 my $dir = $key;
2793 my $strip_subdir = 1;
2794 if ($dir =~ /^nobase_/)
2795 {
2796 $dir =~ s/^nobase_//;
2797 $strip_subdir = 0;
2798 }
2799 my $var = rvar ($key . '_LTLIBRARIES');
2801 # We reject libraries which are installed in several places
2802 # in the same condition, because we can only specify one
2803 # '-rpath' option.
2804 $var->traverse_recursively
2805 (sub
2806 {
2807 my ($var, $val, $cond, $full_cond) = @_;
2808 my $hcond = $full_cond->human;
2809 my $where = $var->rdef ($cond)->location;
2810 my $ldir = '';
2811 $ldir = '/' . dirname ($val)
2812 if (!$strip_subdir);
2813 # A library cannot be installed in different directories
2814 # in overlapping conditions.
2815 if (exists $instconds{$val})
2816 {
2817 my ($msg, $acond) =
2818 $instconds{$val}->ambiguous_p ($val, $full_cond);
2820 if ($msg)
2821 {
2822 error ($where, $msg, partial => 1);
2823 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2824 $dirtxt = "built for '$dir'"
2825 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2826 my $dircond =
2827 $full_cond->true ? "" : " in condition $hcond";
2829 error ($where, "'$val' should be $dirtxt$dircond ...",
2830 partial => 1);
2832 my $hacond = $acond->human;
2833 my $adir = $instdirs{$val}{$acond};
2834 my $adirtxt = "installed in '$adir'";
2835 $adirtxt = "built for '$adir'"
2836 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2837 || $adir eq 'check');
2838 my $adircond = $acond->true ? "" : " in condition $hacond";
2840 my $onlyone = ($dir ne $adir) ?
2841 ("\nLibtool libraries can be built for only one "
2842 . "destination") : "";
2844 error ($liblocations{$val}{$acond},
2845 "... and should also be $adirtxt$adircond.$onlyone");
2846 return;
2847 }
2848 }
2849 else
2850 {
2851 $instconds{$val} = new Automake::DisjConditions;
2852 }
2853 $instdirs{$val}{$full_cond} = $dir;
2854 $instsubdirs{$val}{$full_cond} = $ldir;
2855 $liblocations{$val}{$full_cond} = $where;
2856 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2857 },
2858 sub
2859 {
2860 return ();
2861 },
2862 skip_ac_subst => 1);
2863 }
2865 foreach my $pair (@ltliblist)
2866 {
2867 my ($where, $onelib) = @$pair;
2869 my $seen_libobjs = 0;
2870 my $obj = '.lo';
2872 # Canonicalize names and check for misspellings.
2873 my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2874 '_SOURCES', '_OBJECTS',
2875 '_DEPENDENCIES');
2877 # Check that the library fits the standard naming convention.
2878 my $libname_rx = '^lib.*\.la';
2879 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2880 my $ldvar2 = var ('LDFLAGS');
2881 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2882 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2883 {
2884 # Relax name checking for libtool modules.
2885 $libname_rx = '\.la';
2886 }
2888 my $bn = basename ($onelib);
2889 if ($bn !~ /$libname_rx$/)
2890 {
2891 my $type = 'library';
2892 if ($libname_rx eq '\.la')
2893 {
2894 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2895 $type = 'module';
2896 }
2897 else
2898 {
2899 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2900 }
2901 my $suggestion = dirname ($onelib) . "/$bn";
2902 $suggestion =~ s|^\./||g;
2903 msg ('error-gnu/warn', $where,
2904 "'$onelib' is not a standard libtool $type name\n"
2905 . "did you mean '$suggestion'?")
2906 }
2908 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2910 $where->push_context ("while processing Libtool library '$onelib'");
2911 $where->set (INTERNAL->get);
2913 # Make sure we look at these.
2914 set_seen ($xlib . '_LDFLAGS');
2915 set_seen ($xlib . '_DEPENDENCIES');
2916 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2918 # Generate support for conditional object inclusion in
2919 # libraries.
2920 if (var ($xlib . '_LIBADD'))
2921 {
2922 if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2923 {
2924 $seen_libobjs = 1;
2925 }
2926 }
2927 else
2928 {
2929 define_variable ($xlib . "_LIBADD", '', $where);
2930 }
2932 reject_var ("${xlib}_LDADD",
2933 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2936 my $linker = handle_source_transform ($xlib, $onelib, $obj, $where,
2937 NONLIBTOOL => 0, LIBTOOL => 1);
2939 # Determine program to use for link.
2940 my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xlib);
2941 $vlink = verbose_flag ($vlink || 'GEN');
2943 my $rpathvar = "am_${xlib}_rpath";
2944 my $rpath = "\$($rpathvar)";
2945 foreach my $rcond ($instconds{$onelib}->conds)
2946 {
2947 my $val;
2948 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2949 || $instdirs{$onelib}{$rcond} eq 'noinst'
2950 || $instdirs{$onelib}{$rcond} eq 'check')
2951 {
2952 # It's an EXTRA_ library, so we can't specify -rpath,
2953 # because we don't know where the library will end up.
2954 # The user probably knows, but generally speaking automake
2955 # doesn't -- and in fact configure could decide
2956 # dynamically between two different locations.
2957 $val = '';
2958 }
2959 else
2960 {
2961 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2962 $val .= $instsubdirs{$onelib}{$rcond}
2963 if defined $instsubdirs{$onelib}{$rcond};
2964 }
2965 if ($rcond->true)
2966 {
2967 # If $rcond is true there is only one condition and
2968 # there is no point defining an helper variable.
2969 $rpath = $val;
2970 }
2971 else
2972 {
2973 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2974 }
2975 }
2977 # If the resulting library lies in a subdirectory,
2978 # make sure this directory will exist.
2979 my $dirstamp = require_build_directory_maybe ($onelib);
2981 # Remember to cleanup .libs/ in this directory.
2982 my $dirname = dirname $onelib;
2983 $libtool_clean_directories{$dirname} = 1;
2985 $output_rules .= file_contents ('ltlibrary',
2986 $where,
2987 LTLIBRARY => $onelib,
2988 XLTLIBRARY => $xlib,
2989 RPATH => $rpath,
2990 XLINK => $xlink,
2991 VERBOSE => $vlink,
2992 DIRSTAMP => $dirstamp);
2993 if ($seen_libobjs)
2994 {
2995 if (var ($xlib . '_LIBADD'))
2996 {
2997 check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2998 }
2999 }
3001 if (! $seen_ar)
3002 {
3003 msg ('extra-portability', $where,
3004 "'$onelib': linking libtool libraries using a non-POSIX\n"
3005 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
3006 }
3007 }
3008 }
3010 # See if any _SOURCES variable were misspelled.
3011 sub check_typos ()
3012 {
3013 # It is ok if the user sets this particular variable.
3014 set_seen 'AM_LDFLAGS';
3016 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3017 {
3018 foreach my $var (variables $primary)
3019 {
3020 my $varname = $var->name;
3021 # A configure variable is always legitimate.
3022 next if exists $configure_vars{$varname};
3024 for my $cond ($var->conditions->conds)
3025 {
3026 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3027 msg_var ('syntax', $var, "variable '$varname' is defined but no"
3028 . " program or\nlibrary has '$1' as canonical name"
3029 . " (possible typo)")
3030 unless $var->rdef ($cond)->seen;
3031 }
3032 }
3033 }
3034 }
3037 sub handle_scripts ()
3038 {
3039 # NOTE we no longer automatically clean SCRIPTS, because it is
3040 # useful to sometimes distribute scripts verbatim. This happens
3041 # e.g. in Automake itself.
3042 am_install_var ('-candist', 'scripts', 'SCRIPTS',
3043 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
3044 'noinst', 'check');
3045 }
3048 ## ------------------------ ##
3049 ## Handling Texinfo files. ##
3050 ## ------------------------ ##
3052 # ($OUTFILE, $VFILE)
3053 # scan_texinfo_file ($FILENAME)
3054 # -----------------------------
3055 # $OUTFILE - name of the info file produced by $FILENAME.
3056 # $VFILE - name of the version.texi file used (undef if none).
3057 sub scan_texinfo_file
3058 {
3059 my ($filename) = @_;
3061 my $texi = new Automake::XFile "< $filename";
3062 verb "reading $filename";
3064 my ($outfile, $vfile);
3065 while ($_ = $texi->getline)
3066 {
3067 if (/^\@setfilename +(\S+)/)
3068 {
3069 # Honor only the first @setfilename. (It's possible to have
3070 # more occurrences later if the manual shows examples of how
3071 # to use @setfilename...)
3072 next if $outfile;
3074 $outfile = $1;
3075 if (index ($outfile, '.') < 0)
3076 {
3077 msg 'obsolete', "$filename:$.",
3078 "use of suffix-less info files is discouraged"
3079 }
3080 elsif ($outfile !~ /\.info$/)
3081 {
3082 error ("$filename:$.",
3083 "output '$outfile' has unrecognized extension");
3084 return;
3085 }
3086 }
3087 # A "version.texi" file is actually any file whose name matches
3088 # "vers*.texi".
3089 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3090 {
3091 $vfile = $1;
3092 }
3093 }
3095 if (! $outfile)
3096 {
3097 # Replace a .texi extension with .info
3098 $outfile = basename($filename);
3099 $outfile =~ s/\.[^.]+$//;
3100 $outfile .= '.info';
3101 }
3103 return ($outfile, $vfile);
3104 }
3107 # ($DIRSTAMP, @CLEAN_FILES)
3108 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3109 # ------------------------------------------------------------------
3110 # SOURCE - the source Texinfo file
3111 # DEST - the destination Info file
3112 # INSRC - whether DEST should be built in the source tree
3113 # DEPENDENCIES - known dependencies
3114 sub output_texinfo_build_rules
3115 {
3116 my ($source, $dest, $insrc, @deps) = @_;
3118 # Split 'a.texi' into 'a' and '.texi'.
3119 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3120 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3122 $ssfx ||= "";
3123 $dsfx ||= "";
3125 # We can output two kinds of rules: the "generic" rules use Make
3126 # suffix rules and are appropriate when $source and $dest do not lie
3127 # in a sub-directory; the "specific" rules are needed in the other
3128 # case.
3129 #
3130 # The former are output only once (this is not really apparent here,
3131 # but just remember that some logic deeper in Automake will not
3132 # output the same rule twice); while the later need to be output for
3133 # each Texinfo source.
3134 my $generic;
3135 my $makeinfoflags;
3136 my $sdir = dirname $source;
3137 if ($sdir eq '.' && dirname ($dest) eq '.')
3138 {
3139 $generic = 1;
3140 $makeinfoflags = '-I $(srcdir)';
3141 }
3142 else
3143 {
3144 $generic = 0;
3145 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3146 }
3148 # A directory can contain two kinds of info files: some built in the
3149 # source tree, and some built in the build tree. The rules are
3150 # different in each case. However we cannot output two different
3151 # set of generic rules. Because in-source builds are more usual, we
3152 # use generic rules in this case and fall back to "specific" rules
3153 # for build-dir builds. (It should not be a problem to invert this
3154 # if needed.)
3155 $generic = 0 unless $insrc;
3157 # We cannot use a suffix rule to build info files with an empty
3158 # extension. Otherwise we would output a single suffix inference
3159 # rule, with separate dependencies, as in
3160 #
3161 # .texi:
3162 # $(MAKEINFO) ...
3163 # foo.info: foo.texi
3164 #
3165 # which confuse Solaris make. (See the Autoconf manual for
3166 # details.) Therefore we use a specific rule in this case. This
3167 # applies to info files only (dvi and pdf files always have an
3168 # extension).
3169 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3171 # If the resulting file lies in a subdirectory,
3172 # make sure this directory will exist.
3173 my $dirstamp = require_build_directory_maybe ($dest);
3175 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3177 $output_rules .= file_contents ('texibuild',
3178 new Automake::Location,
3179 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3180 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3181 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3182 DEPS => "@deps",
3183 DEST_PREFIX => $dpfx,
3184 DEST_INFO_PREFIX => $dipfx,
3185 DEST_SUFFIX => $dsfx,
3186 DIRSTAMP => $dirstamp,
3187 GENERIC => $generic,
3188 GENERIC_INFO => $generic_info,
3189 INSRC => $insrc,
3190 MAKEINFOFLAGS => $makeinfoflags,
3191 SILENT => silent_flag(),
3192 SOURCE => ($generic
3193 ? '$<' : $source),
3194 SOURCE_INFO => ($generic_info
3195 ? '$<' : $source),
3196 SOURCE_REAL => $source,
3197 SOURCE_SUFFIX => $ssfx,
3198 TEXIQUIET => verbose_flag('texinfo'),
3199 TEXIDEVNULL => verbose_flag('texidevnull'),
3200 );
3201 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3202 }
3205 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3206 # handle_texinfo_helper ($info_texinfos)
3207 # --------------------------------------
3208 # Handle all Texinfo source; helper for 'handle_texinfo'.
3209 sub handle_texinfo_helper
3210 {
3211 my ($info_texinfos) = @_;
3212 my (@infobase, @info_deps_list, @texi_deps);
3213 my %versions;
3214 my $done = 0;
3215 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3217 # Build a regex matching user-cleaned files.
3218 my $d = var 'DISTCLEANFILES';
3219 my $c = var 'CLEANFILES';
3220 my @f = ();
3221 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3222 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3223 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3224 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3226 foreach my $texi
3227 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3228 {
3229 my $infobase = $texi;
3230 if ($infobase =~ s/\.texi$//)
3231 {
3232 1; # Nothing more to do.
3233 }
3234 elsif ($infobase =~ s/\.(txi|texinfo)$//)
3235 {
3236 msg_var 'obsolete', $info_texinfos,
3237 "suffix '.$1' for Texinfo files is discouraged;" .
3238 " use '.texi' instead";
3239 }
3240 else
3241 {
3242 # FIXME: report line number.
3243 err_am "texinfo file '$texi' has unrecognized extension";
3244 next;
3245 }
3247 push @infobase, $infobase;
3249 # If 'version.texi' is referenced by input file, then include
3250 # automatic versioning capability.
3251 my ($out_file, $vtexi) =
3252 scan_texinfo_file ("$relative_dir/$texi")
3253 or next;
3254 # Directory of auxiliary files and build by-products used by texi2dvi
3255 # and texi2pdf.
3256 push @mostly_cleans, "$infobase.t2d";
3257 push @mostly_cleans, "$infobase.t2p";
3259 # If the Texinfo source is in a subdirectory, create the
3260 # resulting info in this subdirectory. If it is in the current
3261 # directory, try hard to not prefix "./" because it breaks the
3262 # generic rules.
3263 my $outdir = dirname ($texi) . '/';
3264 $outdir = "" if $outdir eq './';
3265 $out_file = $outdir . $out_file;
3267 # Until Automake 1.6.3, .info files were built in the
3268 # source tree. This was an obstacle to the support of
3269 # non-distributed .info files, and non-distributed .texi
3270 # files.
3271 #
3272 # * Non-distributed .texi files is important in some packages
3273 # where .texi files are built at make time, probably using
3274 # other binaries built in the package itself, maybe using
3275 # tools or information found on the build host. Because
3276 # these files are not distributed they are always rebuilt
3277 # at make time; they should therefore not lie in the source
3278 # directory. One plan was to support this using
3279 # nodist_info_TEXINFOS or something similar. (Doing this
3280 # requires some sanity checks. For instance Automake should
3281 # not allow:
3282 # dist_info_TEXINFOS = foo.texi
3283 # nodist_foo_TEXINFOS = included.texi
3284 # because a distributed file should never depend on a
3285 # non-distributed file.)
3286 #
3287 # * If .texi files are not distributed, then .info files should
3288 # not be distributed either. There are also cases where one
3289 # wants to distribute .texi files, but does not want to
3290 # distribute the .info files. For instance the Texinfo package
3291 # distributes the tool used to build these files; it would
3292 # be a waste of space to distribute them. It's not clear
3293 # which syntax we should use to indicate that .info files should
3294 # not be distributed. Akim Demaille suggested that eventually
3295 # we switch to a new syntax:
3296 # | Maybe we should take some inspiration from what's already
3297 # | done in the rest of Automake. Maybe there is too much
3298 # | syntactic sugar here, and you want
3299 # | nodist_INFO = bar.info
3300 # | dist_bar_info_SOURCES = bar.texi
3301 # | bar_texi_DEPENDENCIES = foo.texi
3302 # | with a bit of magic to have bar.info represent the whole
3303 # | bar*info set. That's a lot more verbose that the current
3304 # | situation, but it is # not new, hence the user has less
3305 # | to learn.
3306 # |
3307 # | But there is still too much room for meaningless specs:
3308 # | nodist_INFO = bar.info
3309 # | dist_bar_info_SOURCES = bar.texi
3310 # | dist_PS = bar.ps something-written-by-hand.ps
3311 # | nodist_bar_ps_SOURCES = bar.texi
3312 # | bar_texi_DEPENDENCIES = foo.texi
3313 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3314 #
3315 # Back to the point, it should be clear that in order to support
3316 # non-distributed .info files, we need to build them in the
3317 # build tree, not in the source tree (non-distributed .texi
3318 # files are less of a problem, because we do not output build
3319 # rules for them). In Automake 1.7 .info build rules have been
3320 # largely cleaned up so that .info files get always build in the
3321 # build tree, even when distributed. The idea was that
3322 # (1) if during a VPATH build the .info file was found to be
3323 # absent or out-of-date (in the source tree or in the
3324 # build tree), Make would rebuild it in the build tree.
3325 # If an up-to-date source-tree of the .info file existed,
3326 # make would not rebuild it in the build tree.
3327 # (2) having two copies of .info files, one in the source tree
3328 # and one (newer) in the build tree is not a problem
3329 # because 'make dist' always pick files in the build tree
3330 # first.
3331 # However it turned out the be a bad idea for several reasons:
3332 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3333 # like GNU Make on point (1) above. These implementations
3334 # of Make would always rebuild .info files in the build
3335 # tree, even if such files were up to date in the source
3336 # tree. Consequently, it was impossible to perform a VPATH
3337 # build of a package containing Texinfo files using these
3338 # Make implementations.
3339 # (Refer to the Autoconf Manual, section "Limitation of
3340 # Make", paragraph "VPATH", item "target lookup", for
3341 # an account of the differences between these
3342 # implementations.)
3343 # * The GNU Coding Standards require these files to be built
3344 # in the source-tree (when they are distributed, that is).
3345 # * Keeping a fresher copy of distributed files in the
3346 # build tree can be annoying during development because
3347 # - if the files is kept under CVS, you really want it
3348 # to be updated in the source tree
3349 # - it is confusing that 'make distclean' does not erase
3350 # all files in the build tree.
3351 #
3352 # Consequently, starting with Automake 1.8, .info files are
3353 # built in the source tree again. Because we still plan to
3354 # support non-distributed .info files at some point, we
3355 # have a single variable ($INSRC) that controls whether
3356 # the current .info file must be built in the source tree
3357 # or in the build tree. Actually this variable is switched
3358 # off in two cases:
3359 # (1) For '.info' files that appear to be cleaned; this is for
3360 # backward compatibility with package such as Texinfo,
3361 # which do things like
3362 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3363 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3364 # # Do not create info files for distribution.
3365 # dist-info:
3366 # in order not to distribute .info files.
3367 # (2) When the undocumented option 'info-in-builddir' is given.
3368 # This is done to allow the developers of GCC, GDB, GNU
3369 # binutils and the GNU bfd library to force the '.info' files
3370 # to be generated in the builddir rather than the srcdir, as
3371 # was once done when the (now removed) 'cygnus' option was
3372 # given. See automake bug#11034 for more discussion.
3373 my $insrc = 1;
3374 my $soutdir = '$(srcdir)/' . $outdir;
3376 if (option 'info-in-builddir')
3377 {
3378 $insrc = 0;
3379 }
3380 elsif ($out_file =~ $user_cleaned_files)
3381 {
3382 $insrc = 0;
3383 msg 'obsolete', "$am_file.am", <<EOF;
3384 Oops!
3385 It appears this file (or files included by it) are triggering
3386 an undocumented, soon-to-be-removed automake hack.
3387 Future automake versions will no longer place in the builddir
3388 (rather than in the srcdir) the generated '.info' files that
3389 appear to be cleaned, by e.g. being listed in CLEANFILES or
3390 DISTCLEANFILES.
3391 If you want your '.info' files to be placed in the builddir
3392 rather than in the srcdir, you have to use the shiny new
3393 'info-in-builddir' automake option.
3394 EOF
3395 }
3397 $outdir = $soutdir if $insrc;
3399 # If user specified file_TEXINFOS, then use that as explicit
3400 # dependency list.
3401 @texi_deps = ();
3402 push (@texi_deps, "${soutdir}${vtexi}") if $vtexi;
3404 my $canonical = canonicalize ($infobase);
3405 if (var ($canonical . "_TEXINFOS"))
3406 {
3407 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3408 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3409 }
3411 my ($dirstamp, @cfiles) =
3412 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3413 push (@texi_cleans, @cfiles);
3415 push (@info_deps_list, $out_file);
3417 # If a vers*.texi file is needed, emit the rule.
3418 if ($vtexi)
3419 {
3420 err_am ("'$vtexi', included in '$texi', "
3421 . "also included in '$versions{$vtexi}'")
3422 if defined $versions{$vtexi};
3423 $versions{$vtexi} = $texi;
3425 # We number the stamp-vti files. This is doable since the
3426 # actual names don't matter much. We only number starting
3427 # with the second one, so that the common case looks nice.
3428 my $vti = ($done ? $done : 'vti');
3429 ++$done;
3431 # This is ugly, but it is our historical practice.
3432 if ($config_aux_dir_set_in_configure_ac)
3433 {
3434 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3435 'mdate-sh');
3436 }
3437 else
3438 {
3439 require_file_with_macro (TRUE, 'info_TEXINFOS',
3440 FOREIGN, 'mdate-sh');
3441 }
3443 my $conf_dir;
3444 if ($config_aux_dir_set_in_configure_ac)
3445 {
3446 $conf_dir = "$am_config_aux_dir/";
3447 }
3448 else
3449 {
3450 $conf_dir = '$(srcdir)/';
3451 }
3452 $output_rules .= file_contents ('texi-vers',
3453 new Automake::Location,
3454 TEXI => $texi,
3455 VTI => $vti,
3456 STAMPVTI => "${soutdir}stamp-$vti",
3457 VTEXI => "$soutdir$vtexi",
3458 MDDIR => $conf_dir,
3459 DIRSTAMP => $dirstamp);
3460 }
3461 }
3463 # Handle location of texinfo.tex.
3464 my $need_texi_file = 0;
3465 my $texinfodir;
3466 if (var ('TEXINFO_TEX'))
3467 {
3468 # The user defined TEXINFO_TEX so assume he knows what he is
3469 # doing.
3470 $texinfodir = ('$(srcdir)/'
3471 . dirname (variable_value ('TEXINFO_TEX')));
3472 }
3473 elsif ($config_aux_dir_set_in_configure_ac)
3474 {
3475 $texinfodir = $am_config_aux_dir;
3476 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3477 $need_texi_file = 2; # so that we require_conf_file later
3478 }
3479 else
3480 {
3481 $texinfodir = '$(srcdir)';
3482 $need_texi_file = 1;
3483 }
3484 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3486 push (@dist_targets, 'dist-info');
3488 if (! option 'no-installinfo')
3489 {
3490 # Make sure documentation is made and installed first. Use
3491 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3492 # get run twice during "make all".
3493 unshift (@all, '$(INFO_DEPS)');
3494 }
3496 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3497 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3498 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3499 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3501 # This next isn't strictly needed now -- the places that look here
3502 # could easily be changed to look in info_TEXINFOS. But this is
3503 # probably better, in case noinst_TEXINFOS is ever supported.
3504 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3506 # Do some error checking. Note that this file is not required
3507 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3508 # up above.
3509 if ($need_texi_file && ! option 'no-texinfo.tex')
3510 {
3511 if ($need_texi_file > 1)
3512 {
3513 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3514 'texinfo.tex');
3515 }
3516 else
3517 {
3518 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3519 'texinfo.tex');
3520 }
3521 }
3523 return (makefile_wrap ("", "\t ", @mostly_cleans),
3524 makefile_wrap ("", "\t ", @texi_cleans),
3525 makefile_wrap ("", "\t ", @maint_cleans));
3526 }
3529 sub handle_texinfo ()
3530 {
3531 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3532 # FIXME: I think this is an obsolete future feature name.
3533 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3535 my $info_texinfos = var ('info_TEXINFOS');
3536 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3537 if ($info_texinfos)
3538 {
3539 define_verbose_texinfo;
3540 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3541 chomp $mostlyclean;
3542 chomp $clean;
3543 chomp $maintclean;
3544 }
3546 $output_rules .= file_contents ('texinfos',
3547 new Automake::Location,
3548 AM_V_DVIPS => verbose_flag('DVIPS'),
3549 MOSTLYCLEAN => $mostlyclean,
3550 TEXICLEAN => $clean,
3551 MAINTCLEAN => $maintclean,
3552 'LOCAL-TEXIS' => !!$info_texinfos,
3553 TEXIQUIET => verbose_flag('texinfo'));
3554 }
3557 sub handle_man_pages ()
3558 {
3559 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3561 # Find all the sections in use. We do this by first looking for
3562 # "standard" sections, and then looking for any additional
3563 # sections used in man_MANS.
3564 my (%sections, %notrans_sections, %trans_sections,
3565 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3566 # We handle nodist_ for uniformity. man pages aren't distributed
3567 # by default so it isn't actually very important.
3568 foreach my $npfx ('', 'notrans_')
3569 {
3570 foreach my $pfx ('', 'dist_', 'nodist_')
3571 {
3572 # Add more sections as needed.
3573 foreach my $section ('0'..'9', 'n', 'l')
3574 {
3575 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3576 if (var ($varname))
3577 {
3578 $sections{$section} = 1;
3579 $varname = '$(' . $varname . ')';
3580 if ($npfx eq 'notrans_')
3581 {
3582 $notrans_sections{$section} = 1;
3583 $notrans_sect_vars{$varname} = 1;
3584 }
3585 else
3586 {
3587 $trans_sections{$section} = 1;
3588 $trans_sect_vars{$varname} = 1;
3589 }
3591 push_dist_common ($varname)
3592 if $pfx eq 'dist_';
3593 }
3594 }
3596 my $varname = $npfx . $pfx . 'man_MANS';
3597 my $var = var ($varname);
3598 if ($var)
3599 {
3600 foreach ($var->value_as_list_recursive)
3601 {
3602 # A page like 'foo.1c' goes into man1dir.
3603 if (/\.([0-9a-z])([a-z]*)$/)
3604 {
3605 $sections{$1} = 1;
3606 if ($npfx eq 'notrans_')
3607 {
3608 $notrans_sections{$1} = 1;
3609 }
3610 else
3611 {
3612 $trans_sections{$1} = 1;
3613 }
3614 }
3615 }
3617 $varname = '$(' . $varname . ')';
3618 if ($npfx eq 'notrans_')
3619 {
3620 $notrans_vars{$varname} = 1;
3621 }
3622 else
3623 {
3624 $trans_vars{$varname} = 1;
3625 }
3626 push_dist_common ($varname)
3627 if $pfx eq 'dist_';
3628 }
3629 }
3630 }
3632 return unless %sections;
3634 my @unsorted_deps;
3636 # Build section independent variables.
3637 my $have_notrans = %notrans_vars;
3638 my @notrans_list = sort keys %notrans_vars;
3639 my $have_trans = %trans_vars;
3640 my @trans_list = sort keys %trans_vars;
3642 # Now for each section, generate an install and uninstall rule.
3643 # Sort sections so output is deterministic.
3644 foreach my $section (sort keys %sections)
3645 {
3646 # Build section dependent variables.
3647 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3648 my $trans_mans = $have_trans || exists $trans_sections{$section};
3649 my (%notrans_this_sect, %trans_this_sect);
3650 my $expr = 'man' . $section . '_MANS';
3651 foreach my $varname (keys %notrans_sect_vars)
3652 {
3653 if ($varname =~ /$expr/)
3654 {
3655 $notrans_this_sect{$varname} = 1;
3656 }
3657 }
3658 foreach my $varname (keys %trans_sect_vars)
3659 {
3660 if ($varname =~ /$expr/)
3661 {
3662 $trans_this_sect{$varname} = 1;
3663 }
3664 }
3665 my @notrans_sect_list = sort keys %notrans_this_sect;
3666 my @trans_sect_list = sort keys %trans_this_sect;
3667 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3668 keys %notrans_this_sect, keys %trans_this_sect);
3669 my @deps = sort @unsorted_deps;
3670 $output_rules .= file_contents ('mans',
3671 new Automake::Location,
3672 SECTION => $section,
3673 DEPS => "@deps",
3674 NOTRANS_MANS => $notrans_mans,
3675 NOTRANS_SECT_LIST => "@notrans_sect_list",
3676 HAVE_NOTRANS => $have_notrans,
3677 NOTRANS_LIST => "@notrans_list",
3678 TRANS_MANS => $trans_mans,
3679 TRANS_SECT_LIST => "@trans_sect_list",
3680 HAVE_TRANS => $have_trans,
3681 TRANS_LIST => "@trans_list");
3682 }
3684 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3685 keys %notrans_sect_vars, keys %trans_sect_vars);
3686 my @mans = sort @unsorted_deps;
3687 $output_vars .= file_contents ('mans-vars',
3688 new Automake::Location,
3689 MANS => "@mans");
3691 push (@all, '$(MANS)')
3692 unless option 'no-installman';
3693 }
3696 sub handle_data ()
3697 {
3698 am_install_var ('-noextra', '-candist', 'data', 'DATA',
3699 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3700 'ps', 'sysconf', 'sharedstate', 'localstate',
3701 'pkgdata', 'lisp', 'noinst', 'check');
3702 }
3705 sub handle_tags ()
3706 {
3707 my @config;
3708 foreach my $spec (@config_headers)
3709 {
3710 my ($out, @ins) = split_config_file_spec ($spec);
3711 foreach my $in (@ins)
3712 {
3713 # If the config header source is in this directory,
3714 # require it.
3715 push @config, basename ($in)
3716 if $relative_dir eq dirname ($in);
3717 }
3718 }
3720 define_variable ('am__tagged_files',
3721 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3722 . " @config", INTERNAL);
3724 if (rvar('am__tagged_files')->value_as_list_recursive
3725 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3726 {
3727 $output_rules .= file_contents ('tags', new Automake::Location);
3728 set_seen 'TAGS_DEPENDENCIES';
3729 }
3730 else
3731 {
3732 reject_var ('TAGS_DEPENDENCIES',
3733 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3734 . " without\nsources or 'ETAGS_ARGS'");
3735 # Every Makefile must define some sort of TAGS rule.
3736 # Otherwise, it would be possible for a top-level "make TAGS"
3737 # to fail because some subdirectory failed. Ditto ctags and
3738 # cscope.
3739 $output_rules .=
3740 "tags TAGS:\n\n" .
3741 "ctags CTAGS:\n\n" .
3742 "cscope cscopelist:\n\n";
3743 }
3744 }
3747 # user_phony_rule ($NAME)
3748 # -----------------------
3749 # Return false if rule $NAME does not exist. Otherwise,
3750 # declare it as phony, complete its definition (in case it is
3751 # conditional), and return its Automake::Rule instance.
3752 sub user_phony_rule
3753 {
3754 my ($name) = @_;
3755 my $rule = rule $name;
3756 if ($rule)
3757 {
3758 depend ('.PHONY', $name);
3759 # Define $NAME in all condition where it is not already defined,
3760 # so that it is always OK to depend on $NAME.
3761 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3762 {
3763 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3764 $c, INTERNAL);
3765 $output_rules .= $c->subst_string . "$name:\n";
3766 }
3767 }
3768 return $rule;
3769 }
3772 # Handle 'dist' target.
3773 sub handle_dist ()
3774 {
3775 # Substitutions for distdir.am
3776 my %transform;
3778 # Define DIST_SUBDIRS. This must always be done, regardless of the
3779 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3780 my $subdirs = var ('SUBDIRS');
3781 if ($subdirs)
3782 {
3783 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3784 # to all possible directories, and use it. If DIST_SUBDIRS is
3785 # defined, just use it.
3787 # Note that we check DIST_SUBDIRS first on purpose, so that
3788 # we don't call has_conditional_contents for now reason.
3789 # (In the past one project used so many conditional subdirectories
3790 # that calling has_conditional_contents on SUBDIRS caused
3791 # automake to grow to 150Mb -- this should not happen with
3792 # the current implementation of has_conditional_contents,
3793 # but it's more efficient to avoid the call anyway.)
3794 if (var ('DIST_SUBDIRS'))
3795 {
3796 }
3797 elsif ($subdirs->has_conditional_contents)
3798 {
3799 define_pretty_variable
3800 ('DIST_SUBDIRS', TRUE, INTERNAL,
3801 uniq ($subdirs->value_as_list_recursive));
3802 }
3803 else
3804 {
3805 # We always define this because that is what 'distclean'
3806 # wants.
3807 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3808 '$(SUBDIRS)');
3809 }
3810 }
3812 # The remaining definitions are only required when a dist target is used.
3813 return if option 'no-dist';
3815 # At least one of the archive formats must be enabled.
3816 if ($relative_dir eq '.')
3817 {
3818 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3819 $archive_defined ||=
3820 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz zstd);
3821 error (option 'no-dist-gzip',
3822 "no-dist-gzip specified but no dist-* specified,\n"
3823 . "at least one archive format must be enabled")
3824 unless $archive_defined;
3825 }
3827 # Look for common files that should be included in distribution.
3828 # If the aux dir is set, and it does not have a Makefile.am, then
3829 # we check for these files there as well.
3830 my $check_aux = 0;
3831 if ($relative_dir eq '.'
3832 && $config_aux_dir_set_in_configure_ac)
3833 {
3834 if (! is_make_dir ($config_aux_dir))
3835 {
3836 $check_aux = 1;
3837 }
3838 }
3839 foreach my $cfile (@toplevelmd_ok, @common_files)
3840 {
3841 if (dir_has_case_matching_file ($relative_dir, $cfile)
3842 # The file might be absent, but if it can be built it's ok.
3843 || rule $cfile)
3844 {
3845 push_dist_common ($cfile);
3846 }
3847 elsif (grep { $_ eq $cfile } @toplevelmd_ok)
3848 { # Irritatingly, have to repeat the checks, now for .md files;
3849 # we want to prefer non-.md, so do this second, and only "elsif".
3850 if (dir_has_case_matching_file ($relative_dir, "$cfile.md")
3851 || rule "$cfile.md")
3852 {
3853 push_dist_common ("$cfile.md");
3854 }
3855 }
3857 # Don't use 'elsif' here because a file might meaningfully
3858 # appear in both $relative_dir and $config_aux_dir.
3859 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3860 {
3861 push_dist_common ("$config_aux_dir/$cfile")
3862 }
3863 elsif ($check_aux && grep { $_ eq $cfile } @toplevelmd_ok)
3864 {
3865 if (dir_has_case_matching_file ($config_aux_dir, "$cfile.md")
3866 || rule "$cfile.md")
3867 {
3868 push_dist_common ("$cfile.md");
3869 }
3870 }
3871 }
3873 # We might copy elements from @configure_dist_common to
3874 # @dist_common if we think we need to. If the file appears in our
3875 # directory, we would have discovered it already, so we don't
3876 # check that. But if the file is in a subdir without a Makefile,
3877 # we want to distribute it here if we are doing '.'. Ugly!
3878 # Also, in some corner cases, it's possible that the following code
3879 # will cause the same file to appear in the $(DIST_COMMON) variables
3880 # of two distinct Makefiles; but this is not a problem, since the
3881 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3882 # file being distributed multiple times.
3883 # See also automake bug#9651.
3884 if ($relative_dir eq '.')
3885 {
3886 foreach my $file (@configure_dist_common)
3887 {
3888 my $dir = dirname ($file);
3889 push_dist_common ($file)
3890 if ($dir eq '.' || ! is_make_dir ($dir));
3891 }
3892 @configure_dist_common = ();
3893 }
3895 # $(am__DIST_COMMON): files to be distributed automatically. Will be
3896 # appended to $(DIST_COMMON) in the generated Makefile.
3897 # Use 'sort' so that the expansion of $(DIST_COMMON) in the generated
3898 # Makefile is deterministic, in face of m4 and/or perl randomizations
3899 # (see automake bug#17908).
3900 define_pretty_variable ('am__DIST_COMMON', TRUE, INTERNAL,
3901 uniq (sort @dist_common));
3903 # Now that we've processed @dist_common, disallow further attempts
3904 # to modify it.
3905 $handle_dist_run = 1;
3907 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3908 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3910 # If the target 'dist-hook' exists, make sure it is run. This
3911 # allows users to do random weird things to the distribution
3912 # before it is packaged up.
3913 push (@dist_targets, 'dist-hook')
3914 if user_phony_rule 'dist-hook';
3915 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3917 my $flm = option ('filename-length-max');
3918 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3920 $output_rules .= file_contents ('distdir',
3921 new Automake::Location,
3922 %transform,
3923 FILENAME_FILTER => $filename_filter);
3924 }
3927 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3928 # -------------------------------------------------------
3929 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3930 # name. Use $WHERE as a location in the diagnostic, if any.
3931 sub check_directory
3932 {
3933 my ($dir, $where, $reldir) = @_;
3934 $reldir = '.' unless defined $reldir;
3936 error $where, "required directory $reldir/$dir does not exist"
3937 unless -d "$reldir/$dir";
3939 # If an 'obj/' directory exists, BSD make will enter it before
3940 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3941 # will not be read.
3942 #
3943 # % cat Makefile
3944 # all:
3945 # echo Hello
3946 # % cat obj/Makefile
3947 # all:
3948 # echo World
3949 # % make # GNU make
3950 # echo Hello
3951 # Hello
3952 # % pmake # BSD make
3953 # echo World
3954 # World
3955 msg ('portability', $where,
3956 "naming a subdirectory 'obj' causes troubles with BSD make")
3957 if $dir eq 'obj';
3959 # 'aux' is probably the most important of the following forbidden name,
3960 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3961 msg ('portability', $where,
3962 "name '$dir' is reserved on W32 and DOS platforms")
3963 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3964 }
3966 # check_directories_in_var ($VARIABLE)
3967 # ------------------------------------
3968 # Recursively check all items in variables $VARIABLE as directories
3969 sub check_directories_in_var
3970 {
3971 my ($var) = @_;
3972 $var->traverse_recursively
3973 (sub
3974 {
3975 my ($var, $val, $cond, $full_cond) = @_;
3976 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3977 return ();
3978 },
3979 undef,
3980 skip_ac_subst => 1);
3981 }
3984 sub handle_subdirs ()
3985 {
3986 my $subdirs = var ('SUBDIRS');
3987 return
3988 unless $subdirs;
3990 check_directories_in_var $subdirs;
3992 my $dsubdirs = var ('DIST_SUBDIRS');
3993 check_directories_in_var $dsubdirs
3994 if $dsubdirs;
3996 $output_rules .= file_contents ('subdirs', new Automake::Location);
3997 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3998 }
4001 # ($REGEN, @DEPENDENCIES)
4002 # scan_aclocal_m4
4003 # ---------------
4004 # If aclocal.m4 creation is automated, return the list of its dependencies.
4005 sub scan_aclocal_m4 ()
4006 {
4007 my $regen_aclocal = 0;
4009 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4010 set_seen 'CONFIGURE_DEPENDENCIES';
4012 if (-f 'aclocal.m4')
4013 {
4014 define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4016 my $aclocal = new Automake::XFile "< aclocal.m4";
4017 my $line = $aclocal->getline;
4018 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4019 }
4021 my @ac_deps = ();
4023 if (set_seen ('ACLOCAL_M4_SOURCES'))
4024 {
4025 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4026 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4027 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
4028 . "It should be safe to simply remove it");
4029 }
4031 # Note that it might be possible that aclocal.m4 doesn't exist but
4032 # should be auto-generated. This case probably isn't very
4033 # important.
4035 return ($regen_aclocal, @ac_deps);
4036 }
4039 # Helper function for 'substitute_ac_subst_variables'.
4040 sub substitute_ac_subst_variables_worker
4041 {
4042 my ($token) = @_;
4043 return "\@$token\@" if var $token;
4044 return "\${$token\}";
4045 }
4047 # substitute_ac_subst_variables ($TEXT)
4048 # -------------------------------------
4049 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4050 # variable.
4051 sub substitute_ac_subst_variables
4052 {
4053 my ($text) = @_;
4054 $text =~ s/\$[{]([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
4055 return $text;
4056 }
4058 # @DEPENDENCIES
4059 # prepend_srcdir (@INPUTS)
4060 # ------------------------
4061 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4062 # if an input file has a directory part the same as the current
4063 # directory, then the directory part is simply replaced by $(srcdir).
4064 # But if the directory part is different, then $(top_srcdir) is
4065 # prepended.
4066 sub prepend_srcdir
4067 {
4068 my (@inputs) = @_;
4069 my @newinputs;
4071 foreach my $single (@inputs)
4072 {
4073 if (dirname ($single) eq $relative_dir)
4074 {
4075 push (@newinputs, '$(srcdir)/' . basename ($single));
4076 }
4077 else
4078 {
4079 push (@newinputs, '$(top_srcdir)/' . $single);
4080 }
4081 }
4082 return @newinputs;
4083 }
4085 # @DEPENDENCIES
4086 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4087 # ---------------------------------------------------
4088 # Compute a list of dependencies appropriate for the rebuild
4089 # rule of
4090 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4091 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4092 sub rewrite_inputs_into_dependencies
4093 {
4094 my ($file, @inputs) = @_;
4095 my @res = ();
4097 for my $i (@inputs)
4098 {
4099 # We cannot create dependencies on shell variables.
4100 next if (substitute_ac_subst_variables $i) =~ /\$/;
4102 if (exists $ac_config_files_location{$i} && $i ne $file)
4103 {
4104 my $di = dirname $i;
4105 if ($di eq $relative_dir)
4106 {
4107 $i = basename $i;
4108 }
4109 # In the top-level Makefile we do not use $(top_builddir), because
4110 # we are already there, and since the targets are built without
4111 # a $(top_builddir), it helps BSD Make to match them with
4112 # dependencies.
4113 elsif ($relative_dir ne '.')
4114 {
4115 $i = '$(top_builddir)/' . $i;
4116 }
4117 }
4118 else
4119 {
4120 msg ('error', $ac_config_files_location{$file},
4121 "required file '$i' not found")
4122 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4123 ($i) = prepend_srcdir ($i);
4124 push_dist_common ($i);
4125 }
4126 push @res, $i;
4127 }
4128 return @res;
4129 }
4133 # handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4134 # -----------------------------------------------------------------
4135 # Handle remaking and configure stuff.
4136 # We need the name of the input file, to do proper remaking rules.
4137 sub handle_configure
4138 {
4139 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4141 prog_error 'empty @inputs'
4142 unless @inputs;
4144 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4145 $makefile_in);
4146 my $rel_makefile = basename $makefile;
4148 my $colon_infile = ':' . join (':', @inputs);
4149 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4150 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4151 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4152 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4153 @configure_deps, @aclocal_m4_deps,
4154 '$(top_srcdir)/' . $configure_ac);
4155 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4156 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4157 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4158 @configuredeps);
4160 my $automake_options = '--' . $strictness_name .
4161 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4163 $output_rules .= file_contents
4164 ('configure',
4165 new Automake::Location,
4166 MAKEFILE => $rel_makefile,
4167 'MAKEFILE-DEPS' => "@rewritten",
4168 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4169 'MAKEFILE-IN' => $rel_makefile_in,
4170 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4171 'MAKEFILE-IN-DEPS' => "@include_stack",
4172 'MAKEFILE-AM' => $rel_makefile_am,
4173 'AUTOMAKE-OPTIONS' => $automake_options,
4174 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4175 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4176 VERBOSE => verbose_flag ('GEN'));
4178 if ($relative_dir eq '.')
4179 {
4180 push_dist_common ('acconfig.h')
4181 if -f 'acconfig.h';
4182 }
4184 # If we have a configure header, require it.
4185 my $hdr_index = 0;
4186 my @distclean_config;
4187 foreach my $spec (@config_headers)
4188 {
4189 $hdr_index += 1;
4190 # $CONFIG_H_PATH: config.h from top level.
4191 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4192 my $config_h_dir = dirname ($config_h_path);
4194 # If the header is in the current directory we want to build
4195 # the header here. Otherwise, if we're at the topmost
4196 # directory and the header's directory doesn't have a
4197 # Makefile, then we also want to build the header.
4198 if ($relative_dir eq $config_h_dir
4199 || ($relative_dir eq '.' && ! is_make_dir ($config_h_dir)))
4200 {
4201 my ($cn_sans_dir, $stamp_dir);
4202 if ($relative_dir eq $config_h_dir)
4203 {
4204 $cn_sans_dir = basename ($config_h_path);
4205 $stamp_dir = '';
4206 }
4207 else
4208 {
4209 $cn_sans_dir = $config_h_path;
4210 if ($config_h_dir eq '.')
4211 {
4212 $stamp_dir = '';
4213 }
4214 else
4215 {
4216 $stamp_dir = $config_h_dir . '/';
4217 }
4218 }
4220 # This will also distribute all inputs.
4221 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4223 # Cannot define rebuild rules for filenames with shell variables.
4224 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4226 # Header defined in this directory.
4227 my @files;
4228 if (-f $config_h_path . '.top')
4229 {
4230 push (@files, "$cn_sans_dir.top");
4231 }
4232 if (-f $config_h_path . '.bot')
4233 {
4234 push (@files, "$cn_sans_dir.bot");
4235 }
4237 push_dist_common (@files);
4239 # For now, acconfig.h can only appear in the top srcdir.
4240 if (-f 'acconfig.h')
4241 {
4242 push (@files, '$(top_srcdir)/acconfig.h');
4243 }
4245 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4246 $output_rules .=
4247 file_contents ('remake-hdr',
4248 new Automake::Location,
4249 FILES => "@files",
4250 'FIRST-HDR' => ($hdr_index == 1),
4251 CONFIG_H => $cn_sans_dir,
4252 CONFIG_HIN => $ins[0],
4253 CONFIG_H_DEPS => "@ins",
4254 CONFIG_H_PATH => $config_h_path,
4255 STAMP => "$stamp");
4257 push @distclean_config, $cn_sans_dir, $stamp;
4258 }
4259 }
4261 $output_rules .= file_contents ('clean-hdr',
4262 new Automake::Location,
4263 FILES => "@distclean_config")
4264 if @distclean_config;
4266 # Distribute and define mkinstalldirs only if it is already present
4267 # in the package, for backward compatibility (some people may still
4268 # use $(mkinstalldirs)).
4269 # TODO: start warning about this in Automake 1.14, and have
4270 # TODO: Automake 2.0 drop it (and the mkinstalldirs script
4271 # TODO: as well).
4272 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4273 if (-f $mkidpath)
4274 {
4275 # Use require_file so that any existing script gets updated
4276 # by --force-missing.
4277 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4278 define_variable ('mkinstalldirs',
4279 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4280 }
4281 else
4282 {
4283 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4284 # at least one argument, and $(mkinstalldirs) used to work
4285 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4286 # Also, $(MKDIR_P) uses the umask for any intermediate directories
4287 # created, whereas we want them to be created with umask 022
4288 # so that they are mode 755.
4289 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4290 }
4292 reject_var ('CONFIG_HEADER',
4293 "'CONFIG_HEADER' is an anachronism; now determined "
4294 . "automatically\nfrom '$configure_ac'");
4296 my @config_h;
4297 foreach my $spec (@config_headers)
4298 {
4299 my ($out, @ins) = split_config_file_spec ($spec);
4300 # Generate CONFIG_HEADER define.
4301 if ($relative_dir eq dirname ($out))
4302 {
4303 push @config_h, basename ($out);
4304 }
4305 else
4306 {
4307 push @config_h, "\$(top_builddir)/$out";
4308 }
4309 }
4310 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4311 if @config_h;
4313 # Now look for other files in this directory which must be remade
4314 # by config.status, and generate rules for them.
4315 my @actual_other_files = ();
4316 # These get cleaned only in a VPATH build.
4317 my @actual_other_vpath_files = ();
4318 foreach my $lfile (@other_input_files)
4319 {
4320 my $file;
4321 my @inputs;
4322 if ($lfile =~ /^([^:]*):(.*)$/)
4323 {
4324 # This is the ":" syntax of AC_OUTPUT.
4325 $file = $1;
4326 @inputs = split (':', $2);
4327 }
4328 else
4329 {
4330 # Normal usage.
4331 $file = $lfile;
4332 @inputs = $file . '.in';
4333 }
4335 # Automake files should not be stored in here, but in %MAKE_LIST.
4336 prog_error ("$lfile in \@other_input_files\n"
4337 . "\@other_input_files = (@other_input_files)")
4338 if -f $file . '.am';
4340 my $local = basename ($file);
4342 # We skip files that aren't in this directory. However, if
4343 # the file's directory does not have a Makefile, and we are
4344 # currently doing '.', then we create a rule to rebuild the
4345 # file in the subdir.
4346 my $fd = dirname ($file);
4347 if ($fd ne $relative_dir)
4348 {
4349 if ($relative_dir eq '.' && ! is_make_dir ($fd))
4350 {
4351 $local = $file;
4352 }
4353 else
4354 {
4355 next;
4356 }
4357 }
4359 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4361 # Cannot output rules for shell variables.
4362 next if (substitute_ac_subst_variables $local) =~ /\$/;
4364 my $condstr = '';
4365 my $cond = $ac_config_files_condition{$lfile};
4366 if (defined $cond)
4367 {
4368 $condstr = $cond->subst_string;
4369 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4370 $ac_config_files_location{$file});
4371 }
4372 $output_rules .= ($condstr . $local . ': '
4373 . '$(top_builddir)/config.status '
4374 . "@rewritten_inputs\n"
4375 . $condstr . "\t"
4376 . 'cd $(top_builddir) && '
4377 . '$(SHELL) ./config.status '
4378 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4379 . '$@'
4380 . "\n");
4381 push (@actual_other_files, $local);
4382 }
4384 # For links we should clean destinations and distribute sources.
4385 foreach my $spec (@config_links)
4386 {
4387 my ($link, $file) = split /:/, $spec;
4388 # Some people do AC_CONFIG_LINKS($computed). We only handle
4389 # the DEST:SRC form.
4390 next unless $file;
4391 my $where = $ac_config_files_location{$link};
4393 # Skip destinations that contain shell variables.
4394 if ((substitute_ac_subst_variables $link) !~ /\$/)
4395 {
4396 # We skip links that aren't in this directory. However, if
4397 # the link's directory does not have a Makefile, and we are
4398 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4399 # in '.'s Makefile.in.
4400 my $local = basename ($link);
4401 my $fd = dirname ($link);
4402 if ($fd ne $relative_dir)
4403 {
4404 if ($relative_dir eq '.' && ! is_make_dir ($fd))
4405 {
4406 $local = $link;
4407 }
4408 else
4409 {
4410 $local = undef;
4411 }
4412 }
4413 if ($file ne $link)
4414 {
4415 push @actual_other_files, $local if $local;
4416 }
4417 else
4418 {
4419 push @actual_other_vpath_files, $local if $local;
4420 }
4421 }
4423 # Do not process sources that contain shell variables.
4424 if ((substitute_ac_subst_variables $file) !~ /\$/)
4425 {
4426 my $fd = dirname ($file);
4428 # We distribute files that are in this directory.
4429 # At the top-level ('.') we also distribute files whose
4430 # directory does not have a Makefile.
4431 if (($fd eq $relative_dir)
4432 || ($relative_dir eq '.' && ! is_make_dir ($fd)))
4433 {
4434 # The following will distribute $file as a side-effect when
4435 # it is appropriate (i.e., when $file is not already an output).
4436 # We do not need the result, just the side-effect.
4437 rewrite_inputs_into_dependencies ($link, $file);
4438 }
4439 }
4440 }
4442 # These files get removed by "make distclean".
4443 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4444 @actual_other_files);
4445 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4446 @actual_other_vpath_files);
4447 }
4449 sub handle_headers ()
4450 {
4451 my @r = am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4452 'oldinclude', 'pkginclude',
4453 'noinst', 'check');
4454 foreach (@r)
4455 {
4456 next unless $_->[1] =~ /\..*$/;
4457 saw_extension ($&);
4458 }
4459 }
4461 sub handle_gettext ()
4462 {
4463 return if ! $seen_gettext || $relative_dir ne '.';
4465 my $subdirs = var 'SUBDIRS';
4467 if (! $subdirs)
4468 {
4469 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4470 return;
4471 }
4473 # Perform some sanity checks to help users get the right setup.
4474 # We disable these tests when po/ doesn't exist in order not to disallow
4475 # unusual gettext setups.
4476 #
4477 # Bruno Haible:
4478 # | The idea is:
4479 # |
4480 # | 1) If a package doesn't have a directory po/ at top level, it
4481 # | will likely have multiple po/ directories in subpackages.
4482 # |
4483 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4484 # | is used without 'external'. It is also useful to warn for the
4485 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4486 # | warnings apply only to the usual layout of packages, therefore
4487 # | they should both be disabled if no po/ directory is found at
4488 # | top level.
4490 if (-d 'po')
4491 {
4492 my @subdirs = $subdirs->value_as_list_recursive;
4494 msg_var ('syntax', $subdirs,
4495 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4496 if ! grep ($_ eq 'po', @subdirs);
4498 # intl/ is not required when AM_GNU_GETTEXT is called with the
4499 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4500 msg_var ('syntax', $subdirs,
4501 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4502 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4503 && ! grep ($_ eq 'intl', @subdirs));
4505 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4506 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4507 msg_var ('syntax', $subdirs,
4508 "'intl' should not be in SUBDIRS when "
4509 . "AM_GNU_GETTEXT([external]) is used")
4510 if ($seen_gettext_external && ! $seen_gettext_intl
4511 && grep ($_ eq 'intl', @subdirs));
4512 }
4514 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4515 }
4517 # Emit makefile footer.
4518 sub handle_footer ()
4519 {
4520 reject_rule ('.SUFFIXES',
4521 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4523 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4524 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4525 # anything else, by sticking it right after the default: target.
4526 $output_header .= ".SUFFIXES:\n";
4527 my $suffixes = var 'SUFFIXES';
4528 my @suffixes = Automake::Rule::suffixes;
4529 if (@suffixes || $suffixes)
4530 {
4531 # Make sure SUFFIXES has unique elements. Sort them to ensure
4532 # the output remains consistent. However, $(SUFFIXES) is
4533 # always at the start of the list, unsorted. This is done
4534 # because make will choose rules depending on the ordering of
4535 # suffixes, and this lets the user have some control. Push
4536 # actual suffixes, and not $(SUFFIXES). Some versions of make
4537 # do not like variable substitutions on the .SUFFIXES line.
4538 my @user_suffixes = ($suffixes
4539 ? $suffixes->value_as_list_recursive : ());
4541 my %suffixes = map { $_ => 1 } @suffixes;
4542 delete @suffixes{@user_suffixes};
4544 $output_header .= (".SUFFIXES: "
4545 . join (' ', @user_suffixes, sort keys %suffixes)
4546 . "\n");
4547 }
4549 $output_trailer .= file_contents ('footer', new Automake::Location);
4550 }
4553 # Generate 'make install' rules.
4554 sub handle_install ()
4555 {
4556 $output_rules .= file_contents
4557 ('install',
4558 new Automake::Location,
4559 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4560 ? (" \$(BUILT_SOURCES)\n"
4561 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4562 : ''),
4563 'installdirs-local' => (user_phony_rule ('installdirs-local')
4564 ? ' installdirs-local' : ''),
4565 am__installdirs => variable_value ('am__installdirs') || '');
4566 }
4569 # handle_all ($MAKEFILE)
4570 #-----------------------
4571 # Deal with 'all' and 'all-am'.
4572 sub handle_all
4573 {
4574 my ($makefile) = @_;
4576 # Output 'all-am'.
4578 # Put this at the beginning for the sake of non-GNU makes. This
4579 # is still wrong if these makes can run parallel jobs. But it is
4580 # right enough.
4581 unshift (@all, basename ($makefile));
4583 foreach my $spec (@config_headers)
4584 {
4585 my ($out, @ins) = split_config_file_spec ($spec);
4586 push (@all, basename ($out))
4587 if dirname ($out) eq $relative_dir;
4588 }
4590 # Install 'all' hooks.
4591 push (@all, "all-local")
4592 if user_phony_rule "all-local";
4594 pretty_print_rule ("all-am:", "\t\t", @all);
4595 depend ('.PHONY', 'all-am', 'all');
4598 # Output 'all'.
4600 my @local_headers = ();
4601 push @local_headers, '$(BUILT_SOURCES)'
4602 if var ('BUILT_SOURCES');
4603 foreach my $spec (@config_headers)
4604 {
4605 my ($out, @ins) = split_config_file_spec ($spec);
4606 push @local_headers, basename ($out)
4607 if dirname ($out) eq $relative_dir;
4608 }
4610 if (@local_headers)
4611 {
4612 # We need to make sure config.h is built before we recurse.
4613 # We also want to make sure that built sources are built
4614 # before any ordinary 'all' targets are run. We can't do this
4615 # by changing the order of dependencies to the "all" because
4616 # that breaks when using parallel makes. Instead we handle
4617 # things explicitly.
4618 $output_all .= ("all: @local_headers"
4619 . "\n\t"
4620 . '$(MAKE) $(AM_MAKEFLAGS) '
4621 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4622 . "\n\n");
4623 depend ('.MAKE', 'all');
4624 }
4625 else
4626 {
4627 $output_all .= "all: " . (var ('SUBDIRS')
4628 ? 'all-recursive' : 'all-am') . "\n\n";
4629 }
4630 }
4632 # Generate helper targets for user-defined recursive targets, where needed.
4633 sub handle_user_recursion ()
4634 {
4635 return unless @extra_recursive_targets;
4637 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4638 map { "$_-recursive" } @extra_recursive_targets);
4639 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4640 foreach my $target (@extra_recursive_targets)
4641 {
4642 # This allows the default target's rules to be overridden in
4643 # Makefile.am.
4644 user_phony_rule ($target);
4645 depend ("$target", "$target-$aux");
4646 depend ("$target-am", "$target-local");
4647 # Every user-defined recursive target 'foo' *must* have a valid
4648 # associated 'foo-local' rule; we define it as an empty rule by
4649 # default, so that the user can transparently extend it in his
4650 # own Makefile.am.
4651 pretty_print_rule ("$target-local:", '', '');
4652 # $target-recursive might as well be undefined, so do not add
4653 # it here; it's taken care of in subdirs.am anyway.
4654 depend (".PHONY", "$target-am", "$target-local");
4655 }
4656 }
4659 # Handle check merge target specially.
4660 sub do_check_merge_target ()
4661 {
4662 # Include user-defined local form of target.
4663 push @check_tests, 'check-local'
4664 if user_phony_rule 'check-local';
4666 # The check target must depend on the local equivalent of
4667 # 'all', to ensure all the primary targets are built. Then it
4668 # must build the local check rules.
4669 $output_rules .= "check-am: all-am\n";
4670 if (@check)
4671 {
4672 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4673 depend ('.MAKE', 'check-am');
4674 }
4676 if (@check_tests)
4677 {
4678 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4679 @check_tests);
4680 depend ('.MAKE', 'check-am');
4681 }
4683 depend '.PHONY', 'check', 'check-am';
4684 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4685 $output_rules .= ("check: "
4686 . (var ('BUILT_SOURCES')
4687 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4688 : '')
4689 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4690 . "\n");
4691 depend ('.MAKE', 'check')
4692 if var ('BUILT_SOURCES');
4693 }
4695 # Handle all 'clean' targets.
4696 sub handle_clean
4697 {
4698 my ($makefile) = @_;
4700 # Clean the files listed in user variables if they exist.
4701 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4702 if var ('MOSTLYCLEANFILES');
4703 $clean_files{'$(CLEANFILES)'} = CLEAN
4704 if var ('CLEANFILES');
4705 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4706 if var ('DISTCLEANFILES');
4707 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4708 if var ('MAINTAINERCLEANFILES');
4710 # Built sources are automatically removed by maintainer-clean.
4711 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4712 if var ('BUILT_SOURCES');
4714 # Compute a list of "rm"s to run for each target.
4715 my %rms = (MOSTLY_CLEAN, [],
4716 CLEAN, [],
4717 DIST_CLEAN, [],
4718 MAINTAINER_CLEAN, []);
4720 foreach my $file (sort keys %clean_files)
4721 {
4722 my $when = $clean_files{$file};
4723 prog_error 'invalid entry in %clean_files'
4724 unless exists $rms{$when};
4726 my $rm = "rm -f $file";
4727 # If file is a variable, make sure when don't call 'rm -f' without args.
4728 $rm ="test -z \"$file\" || $rm"
4729 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4731 push @{$rms{$when}}, "\t-$rm\n";
4732 }
4734 $output_rules .= file_contents
4735 ('clean',
4736 new Automake::Location,
4737 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4738 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4739 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4740 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4741 MAKEFILE => basename $makefile,
4742 );
4743 }
4746 # Subroutine for handle_factored_dependencies() to let '.PHONY' and
4747 # other '.TARGETS' be last. This is meant to be used as a comparison
4748 # subroutine passed to the sort built-int.
4749 sub target_cmp
4750 {
4751 return 0 if $a eq $b;
4753 my $a1 = substr ($a, 0, 1);
4754 my $b1 = substr ($b, 0, 1);
4755 if ($a1 ne $b1)
4756 {
4757 return -1 if $b1 eq '.';
4758 return 1 if $a1 eq '.';
4759 }
4760 return $a cmp $b;
4761 }
4764 # Handle everything related to gathered targets.
4765 sub handle_factored_dependencies ()
4766 {
4767 # Reject bad hooks.
4768 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4769 'uninstall-exec-local', 'uninstall-exec-hook',
4770 'uninstall-dvi-local',
4771 'uninstall-html-local',
4772 'uninstall-info-local',
4773 'uninstall-pdf-local',
4774 'uninstall-ps-local')
4775 {
4776 my $x = $utarg;
4777 $x =~ s/-.*-/-/;
4778 reject_rule ($utarg, "use '$x', not '$utarg'");
4779 }
4781 reject_rule ('install-local',
4782 "use 'install-data-local' or 'install-exec-local', "
4783 . "not 'install-local'");
4785 reject_rule ('install-hook',
4786 "use 'install-data-hook' or 'install-exec-hook', "
4787 . "not 'install-hook'");
4789 # Install the -local hooks.
4790 foreach (sort keys %dependencies)
4791 {
4792 # Hooks are installed on the -am targets.
4793 s/-am$// or next;
4794 depend ("$_-am", "$_-local")
4795 if user_phony_rule "$_-local";
4796 }
4798 # Install the -hook hooks.
4799 # FIXME: Why not be as liberal as we are with -local hooks?
4800 foreach ('install-exec', 'install-data', 'uninstall')
4801 {
4802 if (user_phony_rule "$_-hook")
4803 {
4804 depend ('.MAKE', "$_-am");
4805 register_action("$_-am",
4806 ("\t\@\$(NORMAL_INSTALL)\n"
4807 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4808 }
4809 }
4811 # All the required targets are phony.
4812 depend ('.PHONY', sort keys %required_targets);
4814 # Actually output gathered targets.
4815 foreach (sort target_cmp keys %dependencies)
4816 {
4817 # If there is nothing about this guy, skip it.
4818 next
4819 unless (@{$dependencies{$_}}
4820 || $actions{$_}
4821 || $required_targets{$_});
4823 # Define gathered targets in undefined conditions.
4824 # FIXME: Right now we must handle .PHONY as an exception,
4825 # because people write things like
4826 # .PHONY: myphonytarget
4827 # to append dependencies. This would not work if Automake
4828 # refrained from defining its own .PHONY target as it does
4829 # with other overridden targets.
4830 # Likewise for '.MAKE' and '.PRECIOUS'.
4831 my @undefined_conds = (TRUE,);
4832 if ($_ ne '.PHONY' && $_ ne '.MAKE' && $_ ne '.PRECIOUS')
4833 {
4834 @undefined_conds =
4835 Automake::Rule::define ($_, 'internal',
4836 RULE_AUTOMAKE, TRUE, INTERNAL);
4837 }
4838 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4839 foreach my $cond (@undefined_conds)
4840 {
4841 my $condstr = $cond->subst_string;
4842 pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4843 $output_rules .= $actions{$_} if defined $actions{$_};
4844 $output_rules .= "\n";
4845 }
4846 }
4847 }
4850 sub handle_tests_dejagnu ()
4851 {
4852 push (@check_tests, 'check-DEJAGNU');
4853 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4854 }
4856 # handle_per_suffix_test ($TEST_SUFFIX, [%TRANSFORM])
4857 #----------------------------------------------------
4858 sub handle_per_suffix_test
4859 {
4860 my ($test_suffix, %transform) = @_;
4861 my ($pfx, $generic, $am_exeext);
4862 if ($test_suffix eq '')
4863 {
4864 $pfx = '';
4865 $generic = 0;
4866 $am_exeext = 'FALSE';
4867 }
4868 else
4869 {
4870 prog_error ("test suffix '$test_suffix' lacks leading dot")
4871 unless $test_suffix =~ m/^\.(.*)/;
4872 $pfx = uc ($1) . '_';
4873 $generic = 1;
4874 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4875 : 'FALSE';
4876 }
4877 # The "test driver" program, deputed to handle tests protocol used by
4878 # test scripts. By default, it's assumed that no protocol is used, so
4879 # we fall back to the old behaviour, implemented by the 'test-driver'
4880 # auxiliary script.
4881 if (! var "${pfx}LOG_DRIVER")
4882 {
4883 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4884 define_variable ("${pfx}LOG_DRIVER",
4885 "\$(SHELL) $am_config_aux_dir/test-driver",
4886 INTERNAL);
4887 }
4888 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4889 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4890 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4891 my $compile = "${pfx}LOG_COMPILE";
4892 define_variable ($compile,
4893 '$(' . $pfx . 'LOG_COMPILER)'
4894 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4895 . ' $(' . $pfx . 'LOG_FLAGS)',
4896 INTERNAL);
4897 $output_rules .= file_contents ('check2', new Automake::Location,
4898 GENERIC => $generic,
4899 DRIVER => $driver,
4900 DRIVER_FLAGS => $driver_flags,
4901 COMPILE => '$(' . $compile . ')',
4902 EXT => $test_suffix,
4903 am__EXEEXT => $am_exeext,
4904 %transform);
4905 }
4907 # is_valid_test_extension ($EXT)
4908 # ------------------------------
4909 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4910 # otherwise.
4911 sub is_valid_test_extension
4912 {
4913 my $ext = shift;
4914 return 1
4915 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4916 return 1
4917 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4918 return 0;
4919 }
4922 sub handle_tests ()
4923 {
4924 if (option 'dejagnu')
4925 {
4926 handle_tests_dejagnu;
4927 }
4928 else
4929 {
4930 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4931 {
4932 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4933 . "'AUTOMAKE_OPTIONS'");
4934 }
4935 }
4937 if (var ('TESTS'))
4938 {
4939 push (@check_tests, 'check-TESTS');
4940 my $check_deps = "@check";
4941 $output_rules .= file_contents ('check', new Automake::Location,
4942 SERIAL_TESTS => !! option 'serial-tests',
4943 CHECK_DEPS => $check_deps);
4945 # Tests that are known programs should have $(EXEEXT) appended.
4946 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4947 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4948 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4949 if (var ('XFAIL_TESTS'));
4951 if (! option 'serial-tests')
4952 {
4953 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4954 my $suff = '.test';
4955 my $at_exeext = '';
4956 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4957 if ($handle_exeext)
4958 {
4959 $at_exeext = subst ('EXEEXT');
4960 $suff = $at_exeext . ' ' . $suff;
4961 }
4962 if (! var 'TEST_EXTENSIONS')
4963 {
4964 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4965 }
4966 my $var = var 'TEST_EXTENSIONS';
4967 # Currently, we are not able to deal with conditional contents
4968 # in TEST_EXTENSIONS.
4969 if ($var->has_conditional_contents)
4970 {
4971 msg_var 'unsupported', $var,
4972 "'TEST_EXTENSIONS' cannot have conditional contents";
4973 }
4974 my @test_suffixes = $var->value_as_list_recursive;
4975 if ((my @invalid_test_suffixes =
4976 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4977 {
4978 error $var->rdef (TRUE)->location,
4979 "invalid test extensions: @invalid_test_suffixes";
4980 }
4981 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4982 if ($handle_exeext)
4983 {
4984 unshift (@test_suffixes, $at_exeext)
4985 unless @test_suffixes && $test_suffixes[0] eq $at_exeext;
4986 }
4987 unshift (@test_suffixes, '');
4989 transform_variable_recursively
4990 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4991 sub {
4992 my ($subvar, $val, $cond, $full_cond) = @_;
4993 my $obj = $val;
4994 return $obj
4995 if $val =~ /^\@.*\@$/;
4996 $obj =~ s/\$\(EXEEXT\)$//o;
4998 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4999 {
5000 msg ('error', $subvar->rdef ($cond)->location,
5001 "using '$1' in TESTS is currently broken: '$val'");
5002 }
5004 foreach my $test_suffix (@test_suffixes)
5005 {
5006 next
5007 if $test_suffix eq $at_exeext || $test_suffix eq '';
5008 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
5009 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
5010 }
5011 my $base = $obj;
5012 $obj .= '.log';
5013 handle_per_suffix_test ('',
5014 OBJ => $obj,
5015 BASE => $base,
5016 SOURCE => $val);
5017 return $obj;
5018 });
5020 my $nhelper=1;
5021 my $prev = 'TESTS';
5022 my $post = '';
5023 my $last_suffix = $test_suffixes[$#test_suffixes];
5024 my $cur = '';
5025 foreach my $test_suffix (@test_suffixes)
5026 {
5027 if ($test_suffix eq $last_suffix)
5028 {
5029 $cur = 'TEST_LOGS';
5030 }
5031 else
5032 {
5033 $cur = 'am__test_logs' . $nhelper;
5034 }
5035 define_variable ($cur,
5036 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5037 $post = '.log';
5038 $prev = $cur;
5039 $nhelper++;
5040 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5041 {
5042 handle_per_suffix_test ($test_suffix,
5043 OBJ => '',
5044 BASE => '$*',
5045 SOURCE => '$<');
5046 }
5047 }
5048 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5049 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
5050 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5051 }
5052 }
5053 }
5055 sub handle_emacs_lisp ()
5056 {
5057 my @elfiles = am_install_var ('-candist', 'lisp', 'LISP',
5058 'lisp', 'noinst');
5060 return if ! @elfiles;
5062 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5063 map { $_->[1] } @elfiles);
5064 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5065 '$(am__ELFILES:.el=.elc)');
5066 # This one can be overridden by users.
5067 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5069 push @all, '$(ELCFILES)';
5071 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5072 'EMACS', 'lispdir');
5073 }
5075 sub handle_python ()
5076 {
5077 my @pyfiles = am_install_var ('-defaultdist', 'python', 'PYTHON',
5078 'noinst');
5079 return if ! @pyfiles;
5081 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5082 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5083 define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5084 }
5086 sub handle_java ()
5087 {
5088 my @sourcelist = am_install_var ('-candist',
5089 'java', 'JAVA',
5090 'noinst', 'check');
5091 return if ! @sourcelist;
5093 my @prefixes = am_primary_prefixes ('JAVA', 1,
5094 'noinst', 'check');
5096 my $dir;
5097 my @java_sources = ();
5098 foreach my $prefix (@prefixes)
5099 {
5100 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5102 next
5103 if $curs eq 'EXTRA';
5105 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5107 if (defined $dir)
5108 {
5109 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5110 unless $curs eq $dir;
5111 }
5113 $dir = $curs;
5114 }
5116 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5117 "@java_sources");
5119 if ($dir eq 'check')
5120 {
5121 push (@check, "class$dir.stamp");
5122 }
5123 else
5124 {
5125 push (@all, "class$dir.stamp");
5126 }
5127 }
5130 sub handle_minor_options ()
5131 {
5132 if (option 'readme-alpha')
5133 {
5134 if ($relative_dir eq '.')
5135 {
5136 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5137 {
5138 msg ('error-gnits', $package_version_location,
5139 "version '$package_version' doesn't follow " .
5140 "Gnits standards");
5141 }
5142 if (defined $1 && (-f 'README-alpha' || -f 'README-alpha.md'))
5143 {
5144 # This means we have an alpha release. See
5145 # GNITS_VERSION_PATTERN for details.
5146 my $af = -f 'README-alpha' ? 'README-alpha' : 'README-alpha.md';
5147 push_dist_common ($af);
5148 }
5149 }
5150 }
5151 }
5153 ################################################################
5155 # ($OUTPUT, @INPUTS)
5156 # split_config_file_spec ($SPEC)
5157 # ------------------------------
5158 # Decode the Autoconf syntax for config files (files, headers, links
5159 # etc.).
5160 sub split_config_file_spec
5161 {
5162 my ($spec) = @_;
5163 my ($output, @inputs) = split (/:/, $spec);
5165 push @inputs, "$output.in"
5166 unless @inputs;
5168 return ($output, @inputs);
5169 }
5171 # $input
5172 # locate_am (@POSSIBLE_SOURCES)
5173 # -----------------------------
5174 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5175 # This functions returns the first *.in file for which a *.am exists.
5176 # It returns undef otherwise.
5177 sub locate_am
5178 {
5179 my (@rest) = @_;
5180 my $input;
5181 foreach my $file (@rest)
5182 {
5183 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5184 {
5185 $input = $file;
5186 last;
5187 }
5188 }
5189 return $input;
5190 }
5192 my %make_list;
5194 # scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5195 # --------------------------------------------------
5196 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5197 # (or AC_OUTPUT).
5198 sub scan_autoconf_config_files
5199 {
5200 my ($where, $config_files) = @_;
5202 # Look at potential Makefile.am's.
5203 foreach (split ' ', $config_files)
5204 {
5205 # Must skip empty string for Perl 4.
5206 next if $_ eq "\\" || $_ eq '';
5208 # Handle $local:$input syntax.
5209 my ($local, @rest) = split (/:/);
5210 @rest = ("$local.in",) unless @rest;
5211 # Keep in sync with test 'conffile-leading-dot.sh'.
5212 msg ('unsupported', $where,
5213 "omit leading './' from config file names such as '$local';"
5214 . "\nremake rules might be subtly broken otherwise")
5215 if ($local =~ /^\.\//);
5216 my $input = locate_am @rest;
5217 if ($input)
5218 {
5219 # We have a file that automake should generate.
5220 $make_list{$input} = join (':', ($local, @rest));
5221 }
5222 else
5223 {
5224 # We have a file that automake should cause to be
5225 # rebuilt, but shouldn't generate itself.
5226 push (@other_input_files, $_);
5227 }
5228 $ac_config_files_location{$local} = $where;
5229 $ac_config_files_condition{$local} =
5230 new Automake::Condition (@cond_stack)
5231 if (@cond_stack);
5232 }
5233 }
5236 sub scan_autoconf_traces
5237 {
5238 my ($filename) = @_;
5240 # Macros to trace, with their minimal number of arguments.
5241 #
5242 # IMPORTANT: If you add a macro here, you should also add this macro
5243 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5244 my %traced = (
5245 AC_CANONICAL_BUILD => 0,
5246 AC_CANONICAL_HOST => 0,
5247 AC_CANONICAL_TARGET => 0,
5248 AC_CONFIG_AUX_DIR => 1,
5249 AC_CONFIG_FILES => 1,
5250 AC_CONFIG_HEADERS => 1,
5251 AC_CONFIG_LIBOBJ_DIR => 1,
5252 AC_CONFIG_LINKS => 1,
5253 AC_FC_SRCEXT => 1,
5254 AC_INIT => 0,
5255 AC_LIBSOURCE => 1,
5256 AC_REQUIRE_AUX_FILE => 1,
5257 AC_SUBST_TRACE => 1,
5258 AM_AUTOMAKE_VERSION => 1,
5259 AM_PROG_MKDIR_P => 0,
5260 AM_CONDITIONAL => 2,
5261 AM_EXTRA_RECURSIVE_TARGETS => 1,
5262 AM_GNU_GETTEXT => 0,
5263 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5264 AM_INIT_AUTOMAKE => 0,
5265 AM_MAINTAINER_MODE => 0,
5266 AM_PROG_AR => 0,
5267 _AM_SUBST_NOTMAKE => 1,
5268 _AM_COND_IF => 1,
5269 _AM_COND_ELSE => 1,
5270 _AM_COND_ENDIF => 1,
5271 LT_SUPPORTED_TAG => 1,
5272 _LT_AC_TAGCONFIG => 0,
5273 m4_include => 1,
5274 m4_sinclude => 1,
5275 sinclude => 1,
5276 );
5278 # Suppress all warnings from this invocation of autoconf.
5279 # The user is presumably about to run autoconf themselves
5280 # and will see its warnings then.
5281 local $ENV{WARNINGS} = 'none';
5283 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5285 # Use a separator unlikely to be used, not ':', the default, which
5286 # has a precise meaning for AC_CONFIG_FILES and so on.
5287 $traces .= join (' ',
5288 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5289 (sort keys %traced));
5291 verb "running WARNINGS=$ENV{WARNINGS} $traces";
5292 my $tracefh = new Automake::XFile ("$traces $filename |");
5294 @cond_stack = ();
5295 my $where;
5297 while ($_ = $tracefh->getline)
5298 {
5299 chomp;
5300 my ($here, $depth, @args) = split (/::/);
5301 $where = new Automake::Location $here;
5302 my $macro = $args[0];
5304 prog_error ("unrequested trace '$macro'")
5305 unless exists $traced{$macro};
5307 # Skip and diagnose malformed calls.
5308 if ($#args < $traced{$macro})
5309 {
5310 msg ('syntax', $where, "not enough arguments for $macro");
5311 next;
5312 }
5314 # Alphabetical ordering please.
5315 if ($macro eq 'AC_CANONICAL_BUILD')
5316 {
5317 if ($seen_canonical <= AC_CANONICAL_BUILD)
5318 {
5319 $seen_canonical = AC_CANONICAL_BUILD;
5320 }
5321 }
5322 elsif ($macro eq 'AC_CANONICAL_HOST')
5323 {
5324 if ($seen_canonical <= AC_CANONICAL_HOST)
5325 {
5326 $seen_canonical = AC_CANONICAL_HOST;
5327 }
5328 }
5329 elsif ($macro eq 'AC_CANONICAL_TARGET')
5330 {
5331 $seen_canonical = AC_CANONICAL_TARGET;
5332 }
5333 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5334 {
5335 if ($seen_init_automake)
5336 {
5337 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5338 . "AM_INIT_AUTOMAKE ...", partial => 1);
5339 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5340 }
5341 $config_aux_dir = $args[1];
5342 $config_aux_dir_set_in_configure_ac = 1;
5343 check_directory ($config_aux_dir, $where);
5344 }
5345 elsif ($macro eq 'AC_CONFIG_FILES')
5346 {
5347 # Look at potential Makefile.am's.
5348 scan_autoconf_config_files ($where, $args[1]);
5349 }
5350 elsif ($macro eq 'AC_CONFIG_HEADERS')
5351 {
5352 foreach my $spec (split (' ', $args[1]))
5353 {
5354 my ($dest, @src) = split (':', $spec);
5355 $ac_config_files_location{$dest} = $where;
5356 push @config_headers, $spec;
5357 }
5358 }
5359 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5360 {
5361 $config_libobj_dir = $args[1];
5362 check_directory ($config_libobj_dir, $where);
5363 }
5364 elsif ($macro eq 'AC_CONFIG_LINKS')
5365 {
5366 foreach my $spec (split (' ', $args[1]))
5367 {
5368 my ($dest, $src) = split (':', $spec);
5369 $ac_config_files_location{$dest} = $where;
5370 push @config_links, $spec;
5371 }
5372 }
5373 elsif ($macro eq 'AC_FC_SRCEXT')
5374 {
5375 my $suffix = $args[1];
5376 # These flags are used as %SOURCEFLAG% in depend2.am,
5377 # where the trailing space is important.
5378 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5379 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5380 }
5381 elsif ($macro eq 'AC_INIT')
5382 {
5383 if (defined $args[2])
5384 {
5385 $package_version = $args[2];
5386 $package_version_location = $where;
5387 }
5388 }
5389 elsif ($macro eq 'AC_LIBSOURCE')
5390 {
5391 $libsources{$args[1]} = $here;
5392 }
5393 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5394 {
5395 # Only remember the first time a file is required.
5396 $required_aux_file{$args[1]} = $where
5397 unless exists $required_aux_file{$args[1]};
5398 }
5399 elsif ($macro eq 'AC_SUBST_TRACE')
5400 {
5401 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5402 # AC_SUBST(5), then too bad.
5403 $configure_vars{$args[1]} = $where
5404 if $args[1] =~ /^\w+$/;
5405 }
5406 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5407 {
5408 error ($where,
5409 "version mismatch. This is Automake $VERSION,\n" .
5410 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5411 "comes from Automake $args[1]. You should recreate\n" .
5412 "aclocal.m4 with aclocal and run automake again.\n",
5413 # $? = 63 is used to indicate version mismatch to missing.
5414 exit_code => 63)
5415 if $VERSION ne $args[1];
5417 $seen_automake_version = 1;
5418 }
5419 elsif ($macro eq 'AM_PROG_MKDIR_P')
5420 {
5421 msg 'obsolete', $where, <<'EOF';
5422 The 'AM_PROG_MKDIR_P' macro is deprecated, and its use is discouraged.
5423 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5424 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5425 EOF
5426 }
5427 elsif ($macro eq 'AM_CONDITIONAL')
5428 {
5429 $configure_cond{$args[1]} = $where;
5430 }
5431 elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
5432 {
5433 # Empty leading/trailing fields might be produced by split,
5434 # hence the grep is really needed.
5435 push @extra_recursive_targets,
5436 grep (/./, (split /\s+/, $args[1]));
5437 }
5438 elsif ($macro eq 'AM_GNU_GETTEXT')
5439 {
5440 $seen_gettext = $where;
5441 $ac_gettext_location = $where;
5442 $seen_gettext_external = grep ($_ eq 'external', @args);
5443 }
5444 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5445 {
5446 $seen_gettext_intl = $where;
5447 }
5448 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5449 {
5450 $seen_init_automake = $where;
5451 if (defined $args[2])
5452 {
5453 msg 'obsolete', $where, <<'EOF';
5454 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5455 https://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
5456 EOF
5457 $package_version = $args[2];
5458 $package_version_location = $where;
5459 }
5460 elsif (defined $args[1])
5461 {
5462 my @opts = split (' ', $args[1]);
5463 @opts = map { { option => $_, where => $where } } @opts;
5464 exit $exit_code unless process_global_option_list (@opts);
5465 }
5466 }
5467 elsif ($macro eq 'AM_MAINTAINER_MODE')
5468 {
5469 $seen_maint_mode = $where;
5470 }
5471 elsif ($macro eq 'AM_PROG_AR')
5472 {
5473 $seen_ar = $where;
5474 }
5475 elsif ($macro eq '_AM_COND_IF')
5476 {
5477 cond_stack_if ('', $args[1], $where);
5478 error ($where, "missing m4 quoting, macro depth $depth")
5479 if ($depth != 1);
5480 }
5481 elsif ($macro eq '_AM_COND_ELSE')
5482 {
5483 cond_stack_else ('!', $args[1], $where);
5484 error ($where, "missing m4 quoting, macro depth $depth")
5485 if ($depth != 1);
5486 }
5487 elsif ($macro eq '_AM_COND_ENDIF')
5488 {
5489 cond_stack_endif (undef, undef, $where);
5490 error ($where, "missing m4 quoting, macro depth $depth")
5491 if ($depth != 1);
5492 }
5493 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5494 {
5495 $ignored_configure_vars{$args[1]} = $where;
5496 }
5497 elsif ($macro eq 'm4_include'
5498 || $macro eq 'm4_sinclude'
5499 || $macro eq 'sinclude')
5500 {
5501 # Skip missing 'sinclude'd files.
5502 next if $macro ne 'm4_include' && ! -f $args[1];
5504 # Some modified versions of Autoconf don't use
5505 # frozen files. Consequently it's possible that we see all
5506 # m4_include's performed during Autoconf's startup.
5507 # Obviously we don't want to distribute Autoconf's files
5508 # so we skip absolute filenames here.
5509 push @configure_deps, '$(top_srcdir)/' . $args[1]
5510 unless $here =~ m,^(?:\w:)?[\\/],;
5511 # Keep track of the greatest timestamp.
5512 if (-e $args[1])
5513 {
5514 my $mtime = mtime $args[1];
5515 $configure_deps_greatest_timestamp = $mtime
5516 if $mtime > $configure_deps_greatest_timestamp;
5517 }
5518 }
5519 elsif ($macro eq 'LT_SUPPORTED_TAG')
5520 {
5521 $libtool_tags{$args[1]} = 1;
5522 $libtool_new_api = 1;
5523 }
5524 elsif ($macro eq '_LT_AC_TAGCONFIG')
5525 {
5526 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5527 # We use it to detect whether tags are supported. Our
5528 # preferred interface is LT_SUPPORTED_TAG, but it was
5529 # introduced in Libtool 1.6.
5530 if (0 == keys %libtool_tags)
5531 {
5532 # Hardcode the tags supported by Libtool 1.5.
5533 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5534 }
5535 }
5536 }
5538 error ($where, "condition stack not properly closed")
5539 if (@cond_stack);
5541 $tracefh->close;
5542 }
5545 # Check whether we use 'configure.ac' or 'configure.in'.
5546 # Scan it (and possibly 'aclocal.m4') for interesting things.
5547 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5548 sub scan_autoconf_files ()
5549 {
5550 # Reinitialize libsources here. This isn't really necessary,
5551 # since we currently assume there is only one configure.ac. But
5552 # that won't always be the case.
5553 %libsources = ();
5555 # Keep track of the youngest configure dependency.
5556 $configure_deps_greatest_timestamp = mtime $configure_ac;
5557 if (-e 'aclocal.m4')
5558 {
5559 my $mtime = mtime 'aclocal.m4';
5560 $configure_deps_greatest_timestamp = $mtime
5561 if $mtime > $configure_deps_greatest_timestamp;
5562 }
5564 scan_autoconf_traces ($configure_ac);
5566 @configure_input_files = sort keys %make_list;
5567 # Set input and output files if not specified by user.
5568 if (! @input_files)
5569 {
5570 @input_files = @configure_input_files;
5571 %output_files = %make_list;
5572 }
5575 if (! $seen_init_automake)
5576 {
5577 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5578 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5579 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5580 . "and that aclocal.m4 was recently regenerated "
5581 . "(using aclocal)");
5582 }
5583 else
5584 {
5585 if (! $seen_automake_version)
5586 {
5587 if (-f 'aclocal.m4')
5588 {
5589 error ($seen_init_automake,
5590 "your implementation of AM_INIT_AUTOMAKE comes from " .
5591 "an\nold Automake version. You should recreate " .
5592 "aclocal.m4\nwith aclocal and run automake again",
5593 # $? = 63 is used to indicate version mismatch to missing.
5594 exit_code => 63);
5595 }
5596 else
5597 {
5598 error ($seen_init_automake,
5599 "no proper implementation of AM_INIT_AUTOMAKE was " .
5600 "found,\nprobably because aclocal.m4 is missing.\n" .
5601 "You should run aclocal to create this file, then\n" .
5602 "run automake again");
5603 }
5604 }
5605 }
5607 locate_aux_dir ();
5609 # Look for some files we need. Always check for these. This
5610 # check must be done for every run, even those where we are only
5611 # looking at a subdir Makefile. We must set relative_dir for
5612 # push_required_file to work.
5613 # Sort the files for stable verbose output.
5614 $relative_dir = '.';
5615 foreach my $file (sort keys %required_aux_file)
5616 {
5617 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5618 }
5619 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5620 if -f $config_aux_dir . '/install.sh';
5622 # Preserve dist_common for later.
5623 @configure_dist_common = @dist_common;
5624 }
5626 ################################################################
5628 # Do any extra checking for GNU standards.
5629 sub check_gnu_standards ()
5630 {
5631 if ($relative_dir eq '.')
5632 {
5633 # In top level (or only) directory.
5635 foreach my $file (@toplevelmd_ok)
5636 {
5637 next if $file eq 'THANKS'; # gnits, checked below
5638 # if non-.md is absent, and .md is present, require .md;
5639 # otherwise require non-.md.
5640 my $required
5641 = (! -f $file && -f "$file.md") ? "$file.md" : $file;
5642 require_file ("$am_file.am", GNU, $required);
5643 }
5645 # Accept one of these three licenses; default to COPYING.
5646 # Make sure we do not overwrite an existing license.
5647 my $license;
5648 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5649 {
5650 if (-f $_)
5651 {
5652 $license = $_;
5653 last;
5654 }
5655 }
5656 require_file ("$am_file.am", GNU, 'COPYING')
5657 unless $license;
5658 }
5660 for my $opt ('no-installman', 'no-installinfo')
5661 {
5662 msg ('error-gnu', option $opt,
5663 "option '$opt' disallowed by GNU standards")
5664 if option $opt;
5665 }
5666 }
5668 # Do any extra checking for GNITS standards.
5669 sub check_gnits_standards ()
5670 {
5671 if ($relative_dir eq '.')
5672 {
5673 # In top level (or only) directory.
5674 my $file = 'THANKS';
5675 my $required
5676 = (! -f $file && -f "$file.md") ? "$file.md" : $file;
5677 require_file ("$am_file.am", GNITS, $file);
5678 }
5679 }
5681 ################################################################
5682 #
5683 # Functions to handle files of each language.
5685 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5686 # simple formula: Return value is LANG_SUBDIR if the resulting object
5687 # file should be in a subdir if the source file is, LANG_PROCESS if
5688 # file is to be dealt with, LANG_IGNORE otherwise.
5690 # Much of the actual processing is handled in
5691 # handle_single_transform. These functions exist so that
5692 # auxiliary information can be recorded for a later cleanup pass.
5693 # Note that the calls to these functions are computed, so don't bother
5694 # searching for their precise names in the source.
5696 # This is just a convenience function that can be used to determine
5697 # when a subdir object should be used.
5698 sub lang_sub_obj ()
5699 {
5700 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5701 }
5703 # Rewrite a single header file.
5704 sub lang_header_rewrite
5705 {
5706 # Header files are simply ignored.
5707 return LANG_IGNORE;
5708 }
5710 # Rewrite a single Vala source file.
5711 sub lang_vala_rewrite
5712 {
5713 my ($directory, $base, $ext) = @_;
5715 (my $newext = $ext) =~ s/vala$/c/;
5716 return (LANG_SUBDIR, $newext);
5717 }
5719 # Rewrite a single yacc/yacc++ file.
5720 sub lang_yacc_rewrite
5721 {
5722 my ($directory, $base, $ext) = @_;
5724 my $r = lang_sub_obj;
5725 (my $newext = $ext) =~ tr/y/c/;
5726 return ($r, $newext);
5727 }
5728 sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
5730 # Rewrite a single lex/lex++ file.
5731 sub lang_lex_rewrite
5732 {
5733 my ($directory, $base, $ext) = @_;
5735 my $r = lang_sub_obj;
5736 (my $newext = $ext) =~ tr/l/c/;
5737 return ($r, $newext);
5738 }
5739 sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
5741 # Rewrite a single Java file.
5742 sub lang_java_rewrite
5743 {
5744 return LANG_SUBDIR;
5745 }
5747 # The lang_X_finish functions are called after all source file
5748 # processing is done. Each should handle defining rules for the
5749 # language, etc. A finish function is only called if a source file of
5750 # the appropriate type has been seen.
5752 sub lang_vala_finish_target
5753 {
5754 my ($self, $name) = @_;
5756 my $derived = canonicalize ($name);
5757 my $var = var "${derived}_SOURCES";
5758 return unless $var;
5760 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5762 # For automake bug#11229.
5763 return unless @vala_sources;
5765 foreach my $vala_file (@vala_sources)
5766 {
5767 my $c_file = $vala_file;
5768 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5769 {
5770 my $built_c_file = "\$(builddir)/$c_file";
5771 my $built_dir = dirname $built_c_file;
5772 my $base_c_file = basename $c_file;
5773 #
5774 # The -newer test here is checking "C file not older than Vala
5775 # file" (not "C file newer than Vala file"; see
5776 # https://bugs.gnu.org/44772. The log message on the commit
5777 # misleadingly says "reversed".
5778 #
5779 $output_rules .= "$built_c_file: \$(builddir)/${derived}_vala.stamp\n"
5780 . "\t\@if test ! -f \$@ && test \$(srcdir) != \$(builddir) && test -n \"\$\$(find -L \$(srcdir)/$vala_file -prune \! -newer \$(srcdir)/$c_file)\"; then cp -p \$(srcdir)/$c_file $built_c_file; fi\n"
5781 . "\t\@if test -f \$@; then :; else rm -f \$(builddir)/${derived}_vala.stamp; fi\n"
5782 . "\t\@if test -f \$@; then :; else \\\n"
5783 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(builddir)/${derived}_vala.stamp; \\\n"
5784 . "\t if test $built_dir != .; then mv $base_c_file $built_dir/; fi \\\n"
5785 . "\tfi\n";
5786 $clean_files{$built_c_file} = DIST_CLEAN;
5787 $clean_files{"\$(srcdir)/$c_file"} = MAINTAINER_CLEAN;
5788 }
5789 }
5791 # Add rebuild rules for generated header and vapi files
5792 my $flags = var ($derived . '_VALAFLAGS');
5793 if ($flags)
5794 {
5795 my $lastflag = '';
5796 foreach my $flag ($flags->value_as_list_recursive)
5797 {
5798 if (grep (/^$lastflag$/, ('-H', '-h', '--header', '--internal-header',
5799 '--vapi', '--internal-vapi', '--gir')))
5800 {
5801 my $headerfile = "\$(builddir)/$flag";
5802 $output_rules .= "$headerfile: \$(builddir)/${derived}_vala.stamp\n"
5803 . "\t\@if test -f \$@; then :; else rm -f \$(builddir)/${derived}_vala.stamp; fi\n"
5804 . "\t\@if test -f \$@; then :; else \\\n"
5805 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(builddir)/${derived}_vala.stamp; \\\n"
5806 . "\tfi\n";
5808 # valac is not used when building from dist tarballs
5809 # distribute the generated files
5810 push_dist_common ($headerfile);
5811 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5812 }
5813 if (grep (/$lastflag/, ('--library')))
5814 {
5815 my $headerfile = "\$(builddir)/$flag";
5816 $output_rules .= "$headerfile.vapi: \$(builddir)/${derived}_vala.stamp\n"
5817 . "\t\@if test -f \$@; then :; else rm -f \$(builddir)/${derived}_vala.stamp; fi\n"
5818 . "\t\@if test -f \$@; then :; else \\\n"
5819 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(builddir)/${derived}_vala.stamp; \\\n"
5820 . "\tfi\n";
5822 # valac is not used when building from dist tarballs
5823 # distribute the generated files
5824 my $vapi = "$headerfile.vapi";
5825 push_dist_common ($vapi);
5826 $clean_files{$headerfile.'.vapi'} = MAINTAINER_CLEAN;
5827 }
5828 $lastflag = $flag;
5829 }
5830 }
5832 my $compile = $self->compile;
5834 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5835 # rule into '${derived}_VALAFLAGS' if it exists.
5836 my $val = "${derived}_VALAFLAGS";
5837 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5838 if set_seen ($val);
5840 # VALAFLAGS is a user variable (per GNU Standards),
5841 # it should not be overridden in the Makefile...
5842 check_user_variables 'VALAFLAGS';
5844 my $dirname = dirname ($name);
5846 # Only generate C code, do not run C compiler
5847 $compile .= " -C";
5849 my $verbose = verbose_flag ('VALAC');
5850 my $silent = silent_flag ();
5851 my $stampfile = "\$(builddir)/${derived}_vala.stamp";
5853 $output_rules .=
5854 "\$(builddir)/${derived}_vala.stamp: @vala_sources\n".
5855 # Since the C files generated from the vala sources depend on the
5856 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5857 # those of the C files generated by the valac invocation below (this is
5858 # especially important on systems with sub-second timestamp resolution).
5859 # Thus we need to create the stamp file *before* invoking valac, and to
5860 # move it to its final location only after valac has been invoked.
5861 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5862 "\t${verbose}$compile \$^\n".
5863 "\t${silent}mv -f \$\@-t \$\@\n";
5865 push_dist_common ($stampfile);
5867 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5868 }
5870 # Add output rules to invoke valac and create stamp file as a witness
5871 # to handle multiple outputs. This function is called after all source
5872 # file processing is done.
5873 sub lang_vala_finish ()
5874 {
5875 my ($self) = @_;
5877 foreach my $prog (sort keys %known_programs)
5878 {
5879 lang_vala_finish_target ($self, $prog);
5880 }
5882 while (my ($name) = each %known_libraries)
5883 {
5884 lang_vala_finish_target ($self, $name);
5885 }
5886 }
5888 # The built .c files should be cleaned only on maintainer-clean
5889 # as the .c files are distributed. This function is called for each
5890 # .vala source file.
5891 sub lang_vala_target_hook
5892 {
5893 my ($self, $aggregate, $output, $input, %transform) = @_;
5895 $clean_files{$output} = MAINTAINER_CLEAN;
5896 }
5898 # This is a yacc helper which is called whenever we have decided to
5899 # compile a yacc file.
5900 sub lang_yacc_target_hook
5901 {
5902 my ($self, $aggregate, $output, $input, %transform) = @_;
5904 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5905 # have to to generate special code.
5906 my $yflags_contains_minus_d = 0;
5908 foreach my $pfx ("", "${aggregate}_")
5909 {
5910 my $yflagsvar = var ("${pfx}YFLAGS");
5911 next unless $yflagsvar;
5912 # We cannot work reliably with conditionally-defined YFLAGS.
5913 if ($yflagsvar->has_conditional_contents)
5914 {
5915 msg_var ('unsupported', $yflagsvar,
5916 "'${pfx}YFLAGS' cannot have conditional contents");
5917 }
5918 else
5919 {
5920 $yflags_contains_minus_d = 1
5921 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5922 }
5923 }
5925 if ($yflags_contains_minus_d)
5926 {
5927 # Found a '-d' that applies to the compilation of this file.
5928 # Add a dependency for the generated header file, and arrange
5929 # for that file to be included in the distribution.
5931 # The extension of the output file (e.g., '.c' or '.cxx').
5932 # We'll need it to compute the name of the generated header file.
5933 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5935 # We know that a yacc input should be turned into either a C or
5936 # C++ output file. We depend on this fact (here and in yacc.am),
5937 # so check that it really holds.
5938 my $lang = $languages{$extension_map{$output_ext}};
5939 prog_error "invalid output name '$output' for yacc file '$input'"
5940 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5942 (my $header_ext = $output_ext) =~ s/c/h/g;
5943 # Quote $output_ext in the regexp, so that dots in it are taken
5944 # as literal dots, not as metacharacters.
5945 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5947 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5948 RULE_AUTOMAKE, TRUE,
5949 INTERNAL))
5950 {
5951 my $condstr = $cond->subst_string;
5952 $output_rules .=
5953 "$condstr${header}: $output\n"
5954 # Recover from removal of $header
5955 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5956 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5957 }
5958 # Distribute the generated file, unless its .y source was
5959 # listed in a nodist_ variable. (handle_source_transform()
5960 # will set DIST_SOURCE.)
5961 push_dist_common ($header)
5962 if $transform{'DIST_SOURCE'};
5964 # The GNU rules say that yacc/lex output files should be removed
5965 # by maintainer-clean. However, if the files are not distributed,
5966 # then we want to remove them with "make clean"; otherwise,
5967 # "make distcheck" will fail.
5968 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5969 }
5970 # See the comment above for $HEADER.
5971 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5972 }
5974 # This is a lex helper which is called whenever we have decided to
5975 # compile a lex file.
5976 sub lang_lex_target_hook
5977 {
5978 my ($self, $aggregate, $output, $input, %transform) = @_;
5979 # The GNU rules say that yacc/lex output files should be removed
5980 # by maintainer-clean. However, if the files are not distributed,
5981 # then we want to remove them with "make clean"; otherwise,
5982 # "make distcheck" will fail.
5983 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5984 }
5986 # This is a helper for both lex and yacc.
5987 sub yacc_lex_finish_helper ()
5988 {
5989 return if defined $language_scratch{'lex-yacc-done'};
5990 $language_scratch{'lex-yacc-done'} = 1;
5992 # FIXME: for now, no line number.
5993 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5994 define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5995 }
5997 sub lang_yacc_finish ()
5998 {
5999 return if defined $language_scratch{'yacc-done'};
6000 $language_scratch{'yacc-done'} = 1;
6002 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
6004 yacc_lex_finish_helper;
6005 }
6008 sub lang_lex_finish ()
6009 {
6010 return if defined $language_scratch{'lex-done'};
6011 $language_scratch{'lex-done'} = 1;
6013 yacc_lex_finish_helper;
6014 }
6017 # Given a hash table of linker names, pick the name that has the most
6018 # precedence. This is lame, but something has to have global
6019 # knowledge in order to eliminate the conflict. Add more linkers as
6020 # required.
6021 sub resolve_linker
6022 {
6023 my (%linkers) = @_;
6025 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6026 {
6027 return $l if defined $linkers{$l};
6028 }
6029 return 'LINK';
6030 }
6032 # Called to indicate that an extension was used.
6033 sub saw_extension
6034 {
6035 my ($ext) = @_;
6036 $extension_seen{$ext} = 1;
6037 }
6039 # register_language (%ATTRIBUTE)
6040 # ------------------------------
6041 # Register a single language.
6042 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6043 sub register_language
6044 {
6045 my (%option) = @_;
6047 # Set the defaults.
6048 $option{'autodep'} = 'no'
6049 unless defined $option{'autodep'};
6050 $option{'linker'} = ''
6051 unless defined $option{'linker'};
6052 $option{'flags'} = []
6053 unless defined $option{'flags'};
6054 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6055 unless defined $option{'output_extensions'};
6056 $option{'nodist_specific'} = 0
6057 unless defined $option{'nodist_specific'};
6059 my $lang = new Automake::Language (%option);
6061 # Fill indexes.
6062 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6063 $languages{$lang->name} = $lang;
6064 my $link = $lang->linker;
6065 if ($link)
6066 {
6067 if (exists $link_languages{$link})
6068 {
6069 prog_error ("'$link' has different definitions in "
6070 . $lang->name . " and " . $link_languages{$link}->name)
6071 if $lang->link ne $link_languages{$link}->link;
6072 }
6073 else
6074 {
6075 $link_languages{$link} = $lang;
6076 }
6077 }
6079 # Update the pattern of known extensions.
6080 accept_extensions (@{$lang->extensions});
6082 # Update the suffix rules map.
6083 foreach my $suffix (@{$lang->extensions})
6084 {
6085 foreach my $dest ($lang->output_extensions->($suffix))
6086 {
6087 register_suffix_rule (INTERNAL, $suffix, $dest);
6088 }
6089 }
6090 }
6092 # derive_suffix ($EXT, $OBJ)
6093 # --------------------------
6094 # This function is used to find a path from a user-specified suffix $EXT
6095 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6096 sub derive_suffix
6097 {
6098 my ($source_ext, $obj) = @_;
6100 while (!$extension_map{$source_ext} && $source_ext ne $obj)
6101 {
6102 my $new_source_ext = next_in_suffix_chain ($source_ext, $obj);
6103 last if not defined $new_source_ext;
6104 $source_ext = $new_source_ext;
6105 }
6107 return $source_ext;
6108 }
6111 # Pretty-print something and append to '$output_rules'.
6112 sub pretty_print_rule
6113 {
6114 $output_rules .= makefile_wrap (shift, shift, @_);
6115 }
6118 ################################################################
6121 ## -------------------------------- ##
6122 ## Handling the conditional stack. ##
6123 ## -------------------------------- ##
6126 # $STRING
6127 # make_conditional_string ($NEGATE, $COND)
6128 # ----------------------------------------
6129 sub make_conditional_string
6130 {
6131 my ($negate, $cond) = @_;
6132 $cond = "${cond}_TRUE"
6133 unless $cond =~ /^TRUE|FALSE$/;
6134 $cond = Automake::Condition::conditional_negate ($cond)
6135 if $negate;
6136 return $cond;
6137 }
6140 my %_am_macro_for_cond =
6141 (
6142 AMDEP => "one of the compiler tests\n"
6143 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6144 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6145 am__fastdepCC => 'AC_PROG_CC',
6146 am__fastdepCCAS => 'AM_PROG_AS',
6147 am__fastdepCXX => 'AC_PROG_CXX',
6148 am__fastdepGCJ => 'AM_PROG_GCJ',
6149 am__fastdepOBJC => 'AC_PROG_OBJC',
6150 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6151 am__fastdepUPC => 'AM_PROG_UPC'
6152 );
6154 # $COND
6155 # cond_stack_if ($NEGATE, $COND, $WHERE)
6156 # --------------------------------------
6157 sub cond_stack_if
6158 {
6159 my ($negate, $cond, $where) = @_;
6161 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6162 {
6163 my $text = "$cond does not appear in AM_CONDITIONAL";
6164 my $scope = US_LOCAL;
6165 if (exists $_am_macro_for_cond{$cond})
6166 {
6167 my $mac = $_am_macro_for_cond{$cond};
6168 $text .= "\n The usual way to define '$cond' is to add ";
6169 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6170 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6171 # These warnings appear in Automake files (depend2.am),
6172 # so there is no need to display them more than once:
6173 $scope = US_GLOBAL;
6174 }
6175 error $where, $text, uniq_scope => $scope;
6176 }
6178 push (@cond_stack, make_conditional_string ($negate, $cond));
6180 return new Automake::Condition (@cond_stack);
6181 }
6184 # $COND
6185 # cond_stack_else ($NEGATE, $COND, $WHERE)
6186 # ----------------------------------------
6187 sub cond_stack_else
6188 {
6189 my ($negate, $cond, $where) = @_;
6191 if (! @cond_stack)
6192 {
6193 error $where, "else without if";
6194 return FALSE;
6195 }
6197 $cond_stack[$#cond_stack] =
6198 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6200 # If $COND is given, check against it.
6201 if (defined $cond)
6202 {
6203 $cond = make_conditional_string ($negate, $cond);
6205 error ($where, "else reminder ($negate$cond) incompatible with "
6206 . "current conditional: $cond_stack[$#cond_stack]")
6207 if $cond_stack[$#cond_stack] ne $cond;
6208 }
6210 return new Automake::Condition (@cond_stack);
6211 }
6214 # $COND
6215 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6216 # -----------------------------------------
6217 sub cond_stack_endif
6218 {
6219 my ($negate, $cond, $where) = @_;
6220 my $old_cond;
6222 if (! @cond_stack)
6223 {
6224 error $where, "endif without if";
6225 return TRUE;
6226 }
6228 # If $COND is given, check against it.
6229 if (defined $cond)
6230 {
6231 $cond = make_conditional_string ($negate, $cond);
6233 error ($where, "endif reminder ($negate$cond) incompatible with "
6234 . "current conditional: $cond_stack[$#cond_stack]")
6235 if $cond_stack[$#cond_stack] ne $cond;
6236 }
6238 pop @cond_stack;
6240 return new Automake::Condition (@cond_stack);
6241 }
6247 ## ------------------------ ##
6248 ## Handling the variables. ##
6249 ## ------------------------ ##
6252 # define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6253 # ----------------------------------------------------
6254 # Like define_variable, but the value is a list, and the variable may
6255 # be defined conditionally. The second argument is the condition
6256 # under which the value should be defined; this should be the empty
6257 # string to define the variable unconditionally. The third argument
6258 # is a list holding the values to use for the variable. The value is
6259 # pretty printed in the output file.
6260 sub define_pretty_variable
6261 {
6262 my ($var, $cond, $where, @value) = @_;
6264 if (! vardef ($var, $cond))
6265 {
6266 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6267 '', $where, VAR_PRETTY);
6268 rvar ($var)->rdef ($cond)->set_seen;
6269 }
6270 }
6273 # define_variable ($VAR, $VALUE, $WHERE)
6274 # --------------------------------------
6275 # Define a new Automake Makefile variable VAR to VALUE, but only if
6276 # not already defined.
6277 sub define_variable
6278 {
6279 my ($var, $value, $where) = @_;
6280 define_pretty_variable ($var, TRUE, $where, $value);
6281 }
6284 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6285 # ------------------------------------------------------------
6286 # Define the $VAR which content is the list of file names composed of
6287 # a @BASENAME and the $EXTENSION.
6288 sub define_files_variable ($\@$$)
6289 {
6290 my ($var, $basename, $extension, $where) = @_;
6291 define_variable ($var,
6292 join (' ', map { "$_.$extension" } @$basename),
6293 $where);
6294 }
6297 # Like define_variable, but define a variable to be the configure
6298 # substitution by the same name.
6299 sub define_configure_variable
6300 {
6301 my ($var) = @_;
6302 # Some variables we do not want to output. For instance it
6303 # would be a bad idea to output `U = @U@` when `@U@` can be
6304 # substituted as `\`.
6305 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6306 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst ($var),
6307 '', $configure_vars{$var}, $pretty);
6308 }
6311 # define_compiler_variable ($LANG)
6312 # --------------------------------
6313 # Define a compiler variable. We also handle defining the 'LT'
6314 # version of the command when using libtool.
6315 sub define_compiler_variable
6316 {
6317 my ($lang) = @_;
6319 my ($var, $value) = ($lang->compiler, $lang->compile);
6320 my $libtool_tag = '';
6321 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6322 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6323 define_variable ($var, $value, INTERNAL);
6324 if (var ('LIBTOOL'))
6325 {
6326 my $verbose = define_verbose_libtool ();
6327 define_variable ("LT$var",
6328 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS)"
6329 . " \$(LIBTOOLFLAGS) --mode=compile $value",
6330 INTERNAL);
6331 }
6332 define_verbose_tagvar ($lang->ccer || 'GEN');
6333 }
6336 sub define_linker_variable
6337 {
6338 my ($lang) = @_;
6340 my $libtool_tag = '';
6341 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6342 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6343 # CCLD = $(CC).
6344 define_variable ($lang->lder, $lang->ld, INTERNAL);
6345 # CCLINK = $(CCLD) blah blah...
6346 my $link = '';
6347 if (var ('LIBTOOL'))
6348 {
6349 my $verbose = define_verbose_libtool ();
6350 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6351 . "\$(LIBTOOLFLAGS) --mode=link ";
6352 }
6353 define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6354 define_variable ($lang->compiler, $lang, INTERNAL);
6355 define_verbose_tagvar ($lang->lder || 'GEN');
6356 }
6358 sub define_per_target_linker_variable
6359 {
6360 my ($linker, $target) = @_;
6362 # If the user wrote a custom link command, we don't define ours.
6363 my $custom_link = "${target}_LINK";
6364 if (set_seen ($custom_link))
6365 {
6366 my $verbose = $custom_link if var (verbose_var ($custom_link));
6367 return ($custom_link, $verbose);
6368 }
6370 my $xlink = $linker ? $linker : 'LINK';
6372 my $lang = $link_languages{$xlink};
6373 prog_error "Unknown language for linker variable '$xlink'"
6374 unless $lang;
6376 my $link_command = $lang->link;
6377 if (var 'LIBTOOL')
6378 {
6379 my $libtool_tag = '';
6380 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6381 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6383 my $verbose = define_verbose_libtool ();
6384 $link_command =
6385 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6386 . "--mode=link " . $link_command;
6387 }
6389 # Rewrite each occurrence of 'AM_$flag' in the link
6390 # command into '${derived}_$flag' if it exists.
6391 my $orig_command = $link_command;
6392 my @flags = (@{$lang->flags}, 'LDFLAGS');
6393 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6394 for my $flag (@flags)
6395 {
6396 my $val = "${target}_$flag";
6397 $link_command =~ s/\(AM_$flag\)/\($val\)/
6398 if set_seen ($val);
6399 }
6401 # If the computed command is the same as the generic command, use
6402 # the command linker variable.
6403 return ($lang->linker, $lang->lder)
6404 if $link_command eq $orig_command;
6406 define_variable ("${target}_LINK", $link_command, INTERNAL);
6407 return ("${target}_LINK", $lang->lder);
6408 }
6410 ################################################################
6412 # check_trailing_slash ($WHERE, $LINE)
6413 # ------------------------------------
6414 # Return 1 iff $LINE ends with a slash.
6415 # Might modify $LINE.
6416 sub check_trailing_slash ($\$)
6417 {
6418 my ($where, $line) = @_;
6420 # Ignore '##' lines.
6421 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6423 # Catch and fix a common error.
6424 msg "syntax", $where, "whitespace following trailing backslash"
6425 if $$line =~ s/\\\s+\n$/\\\n/;
6427 return $$line =~ /\\$/;
6428 }
6431 # read_am_file ($AMFILE, $WHERE, $RELDIR)
6432 # ---------------------------------------
6433 # Read $AMFILE file name which is located in $RELDIR, and set up
6434 # global variables resetted by '&generate_makefile'. Simultaneously
6435 # copy lines from $AMFILE into '$output_trailer', or define variables
6436 # as appropriate.
6437 #
6438 # NOTE: We put rules in the trailer section. We want user rules to
6439 # come after our generated stuff.
6440 sub read_am_file
6441 {
6442 my ($amfile, $where, $reldir) = @_;
6443 my $canon_reldir = &canonicalize ($reldir);
6445 my $am_file = new Automake::XFile ("< $amfile");
6446 verb "reading $amfile";
6448 # Keep track of the youngest output dependency.
6449 my $mtime = mtime $amfile;
6450 $output_deps_greatest_timestamp = $mtime
6451 if $mtime > $output_deps_greatest_timestamp;
6453 my $spacing = '';
6454 my $comment = '';
6455 my $blank = 0;
6456 my $saw_bk = 0;
6457 my $var_look = VAR_ASIS;
6459 use constant IN_VAR_DEF => 0;
6460 use constant IN_RULE_DEF => 1;
6461 use constant IN_COMMENT => 2;
6462 my $prev_state = IN_RULE_DEF;
6464 while ($_ = $am_file->getline)
6465 {
6466 $where->set ("$amfile:$.");
6467 if (/$IGNORE_PATTERN/o)
6468 {
6469 # Merely delete comments beginning with two hashes.
6470 }
6471 elsif (/$WHITE_PATTERN/o)
6472 {
6473 error $where, "blank line following trailing backslash"
6474 if $saw_bk;
6475 # Stick a single white line before the incoming macro or rule.
6476 $spacing = "\n";
6477 $blank = 1;
6478 # Flush all comments seen so far.
6479 if ($comment ne '')
6480 {
6481 $output_vars .= $comment;
6482 $comment = '';
6483 }
6484 }
6485 elsif (/$COMMENT_PATTERN/o)
6486 {
6487 # Stick comments before the incoming macro or rule. Make
6488 # sure a blank line precedes the first block of comments.
6489 $spacing = "\n" unless $blank;
6490 $blank = 1;
6491 $comment .= $spacing . $_;
6492 $spacing = '';
6493 $prev_state = IN_COMMENT;
6494 }
6495 else
6496 {
6497 last;
6498 }
6499 $saw_bk = check_trailing_slash ($where, $_);
6500 }
6502 # We save the conditional stack on entry, and then check to make
6503 # sure it is the same on exit. This lets us conditionally include
6504 # other files.
6505 my @saved_cond_stack = @cond_stack;
6506 my $cond = new Automake::Condition (@cond_stack);
6508 my $last_var_name = '';
6509 my $last_var_type = '';
6510 my $last_var_value = '';
6511 my $last_where;
6512 # FIXME: shouldn't use $_ in this loop; it is too big.
6513 while ($_)
6514 {
6515 $where->set ("$amfile:$.");
6517 # Make sure the line is \n-terminated.
6518 chomp;
6519 $_ .= "\n";
6521 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6522 # used by users. @MAINT@ is an anachronism now.
6523 $_ =~ s/\@MAINT\@//g
6524 unless $seen_maint_mode;
6526 my $new_saw_bk = check_trailing_slash ($where, $_);
6528 if ($reldir eq '.')
6529 {
6530 # If present, eat the following '_' or '/', converting
6531 # "%reldir%/foo" and "%canon_reldir%_foo" into plain "foo"
6532 # when $reldir is '.'.
6533 $_ =~ s,%(D|reldir)%/,,g;
6534 $_ =~ s,%(C|canon_reldir)%_,,g;
6535 }
6536 $_ =~ s/%(D|reldir)%/${reldir}/g;
6537 $_ =~ s/%(C|canon_reldir)%/${canon_reldir}/g;
6539 if (/$IGNORE_PATTERN/o)
6540 {
6541 # Merely delete comments beginning with two hashes.
6543 # Keep any backslash from the previous line.
6544 $new_saw_bk = $saw_bk;
6545 }
6546 elsif (/$WHITE_PATTERN/o)
6547 {
6548 # Stick a single white line before the incoming macro or rule.
6549 $spacing = "\n";
6550 error $where, "blank line following trailing backslash"
6551 if $saw_bk;
6552 }
6553 elsif (/$COMMENT_PATTERN/o)
6554 {
6555 error $where, "comment following trailing backslash"
6556 if $saw_bk && $prev_state != IN_COMMENT;
6558 # Stick comments before the incoming macro or rule.
6559 $comment .= $spacing . $_;
6560 $spacing = '';
6561 $prev_state = IN_COMMENT;
6562 }
6563 elsif ($saw_bk)
6564 {
6565 if ($prev_state == IN_RULE_DEF)
6566 {
6567 my $cond = new Automake::Condition @cond_stack;
6568 $output_trailer .= $cond->subst_string;
6569 $output_trailer .= $_;
6570 }
6571 elsif ($prev_state == IN_COMMENT)
6572 {
6573 # If the line doesn't start with a '#', add it.
6574 # We do this because a continued comment like
6575 # # A = foo \
6576 # bar \
6577 # baz
6578 # is not portable. BSD make doesn't honor
6579 # escaped newlines in comments.
6580 s/^#?/#/;
6581 $comment .= $spacing . $_;
6582 }
6583 else # $prev_state == IN_VAR_DEF
6584 {
6585 $last_var_value .= ' '
6586 unless $last_var_value =~ /\s$/;
6587 $last_var_value .= $_;
6589 if (!/\\$/)
6590 {
6591 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6592 $last_var_type, $cond,
6593 $last_var_value, $comment,
6594 $last_where, VAR_ASIS)
6595 if $cond != FALSE;
6596 $comment = $spacing = '';
6597 }
6598 }
6599 }
6601 elsif (/$IF_PATTERN/o)
6602 {
6603 $cond = cond_stack_if ($1, $2, $where);
6604 }
6605 elsif (/$ELSE_PATTERN/o)
6606 {
6607 $cond = cond_stack_else ($1, $2, $where);
6608 }
6609 elsif (/$ENDIF_PATTERN/o)
6610 {
6611 $cond = cond_stack_endif ($1, $2, $where);
6612 }
6614 elsif (/$RULE_PATTERN/o)
6615 {
6616 # Found a rule.
6617 $prev_state = IN_RULE_DEF;
6619 # For now we have to output all definitions of user rules
6620 # and can't diagnose duplicates (see the comment in
6621 # Automake::Rule::define). So we go on and ignore the return value.
6622 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6624 check_variable_expansions ($_, $where);
6626 $output_trailer .= $comment . $spacing;
6627 my $cond = new Automake::Condition @cond_stack;
6628 $output_trailer .= $cond->subst_string;
6629 $output_trailer .= $_;
6630 $comment = $spacing = '';
6631 }
6632 elsif (/$ASSIGNMENT_PATTERN/o)
6633 {
6634 # Found a macro definition.
6635 $prev_state = IN_VAR_DEF;
6636 $last_var_name = $1;
6637 $last_var_type = $2;
6638 $last_var_value = $3;
6639 $last_where = $where->clone;
6640 if ($3 ne '' && substr ($3, -1) eq "\\")
6641 {
6642 # We preserve the '\' because otherwise the long lines
6643 # that are generated will be truncated by broken
6644 # 'sed's.
6645 $last_var_value = $3 . "\n";
6646 }
6647 # Normally we try to output variable definitions in the
6648 # same format they were input. However, POSIX compliant
6649 # systems are not required to support lines longer than
6650 # 2048 bytes (most notably, some sed implementation are
6651 # limited to 4000 bytes, and sed is used by config.status
6652 # to rewrite Makefile.in into Makefile). Moreover nobody
6653 # would really write such long lines by hand since it is
6654 # hardly maintainable. So if a line is longer that 1000
6655 # bytes (an arbitrary limit), assume it has been
6656 # automatically generated by some tools, and flatten the
6657 # variable definition. Otherwise, keep the variable as it
6658 # as been input.
6659 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6661 if (!/\\$/)
6662 {
6663 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6664 $last_var_type, $cond,
6665 $last_var_value, $comment,
6666 $last_where, $var_look)
6667 if $cond != FALSE;
6668 $comment = $spacing = '';
6669 $var_look = VAR_ASIS;
6670 }
6671 }
6672 elsif (/$INCLUDE_PATTERN/o)
6673 {
6674 my $path = $1;
6676 if ($path =~ s/^\$\(top_srcdir\)\///)
6677 {
6678 push (@include_stack, "\$\(top_srcdir\)/$path");
6679 # Distribute any included file.
6681 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6682 # otherwise OSF make will implicitly copy the included
6683 # file in the build tree during "make distdir" to satisfy
6684 # the dependency.
6685 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6686 push_dist_common ("\$\(top_srcdir\)/$path");
6687 }
6688 else
6689 {
6690 $path =~ s/\$\(srcdir\)\///;
6691 push (@include_stack, "\$\(srcdir\)/$path");
6692 # Always use the $(srcdir) prefix in DIST_COMMON,
6693 # otherwise OSF make will implicitly copy the included
6694 # file in the build tree during "make distdir" to satisfy
6695 # the dependency.
6696 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6697 push_dist_common ("\$\(srcdir\)/$path");
6698 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6699 }
6700 my $new_reldir = File::Spec->abs2rel ($path, $relative_dir);
6701 $new_reldir = '.' if $new_reldir !~ s,/[^/]*$,,;
6702 $where->push_context ("'$path' included from here");
6703 read_am_file ($path, $where, $new_reldir);
6704 $where->pop_context;
6705 }
6706 else
6707 {
6708 # This isn't an error; it is probably a continued rule.
6709 # In fact, this is what we assume.
6710 $prev_state = IN_RULE_DEF;
6711 check_variable_expansions ($_, $where);
6712 $output_trailer .= $comment . $spacing;
6713 my $cond = new Automake::Condition @cond_stack;
6714 $output_trailer .= $cond->subst_string;
6715 $output_trailer .= $_;
6716 $comment = $spacing = '';
6717 error $where, "'#' comment at start of rule is unportable"
6718 if $_ =~ /^\t\s*\#/;
6719 }
6721 $saw_bk = $new_saw_bk;
6722 $_ = $am_file->getline;
6723 }
6725 $output_trailer .= $comment;
6727 error ($where, "trailing backslash on last line")
6728 if $saw_bk;
6730 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6731 : "too many conditionals closed in include file"))
6732 if "@saved_cond_stack" ne "@cond_stack";
6733 }
6736 # A helper for read_main_am_file which initializes configure variables
6737 # and variables from header-vars.am.
6738 sub define_standard_variables ()
6739 {
6740 my $saved_output_vars = $output_vars;
6741 my ($comments, undef, $rules) =
6742 file_contents_internal (1, "$libdir/am/header-vars.am",
6743 new Automake::Location);
6745 foreach my $var (sort keys %configure_vars)
6746 {
6747 define_configure_variable ($var);
6748 }
6750 $output_vars .= $comments . $rules;
6751 }
6754 # read_main_am_file ($MAKEFILE_AM, $MAKEFILE_IN)
6755 # ----------------------------------------------
6756 sub read_main_am_file
6757 {
6758 my ($amfile, $infile) = @_;
6760 # This supports the strange variable tricks we are about to play.
6761 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6762 if (scalar (variables) > 0);
6764 # Generate copyright header for generated Makefile.in.
6765 # We do discard the output of predefined variables, handled below.
6766 $output_vars = ("# " . basename ($infile) . " generated by automake "
6767 . $VERSION . " from " . basename ($amfile) . ".\n");
6768 $output_vars .= '# ' . subst ('configure_input') . "\n";
6769 $output_vars .= $gen_copyright;
6771 # We want to predefine as many variables as possible. This lets
6772 # the user set them with '+=' in Makefile.am.
6773 define_standard_variables;
6775 # Read user file, which might override some of our values.
6776 read_am_file ($amfile, new Automake::Location, '.');
6777 }
6781 ################################################################
6783 # $STRING
6784 # flatten ($ORIGINAL_STRING)
6785 # --------------------------
6786 sub flatten
6787 {
6788 $_ = shift;
6790 s/\\\n//somg;
6791 s/\s+/ /g;
6792 s/^ //;
6793 s/ $//;
6795 return $_;
6796 }
6799 # transform_token ($TOKEN, \%PAIRS, $KEY)
6800 # ---------------------------------------
6801 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6802 # (which should be ?KEY? or any of the special %% requests)..
6803 sub transform_token ($\%$)
6804 {
6805 my ($token, $transform, $key) = @_;
6806 my $res = $transform->{$key};
6807 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6808 return $res;
6809 }
6812 # transform ($TOKEN, \%PAIRS)
6813 # ---------------------------
6814 # If ($TOKEN, $VAL) is in %PAIRS:
6815 # - replaces %KEY% with $VAL,
6816 # - enables/disables ?KEY? and ?!KEY?,
6817 # - replaces %?KEY% with TRUE or FALSE.
6818 sub transform ($\%)
6819 {
6820 my ($token, $transform) = @_;
6822 # %KEY%.
6823 # Must be before the following pattern to exclude the case
6824 # when there is neither IFTRUE nor IFFALSE.
6825 if ($token =~ /^%([\w\-]+)%$/)
6826 {
6827 return transform_token ($token, %$transform, $1);
6828 }
6829 # %?KEY%.
6830 elsif ($token =~ /^%\?([\w\-]+)%$/)
6831 {
6832 return transform_token ($token, %$transform, $1) ? 'TRUE' : 'FALSE';
6833 }
6834 # ?KEY? and ?!KEY?.
6835 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6836 {
6837 my $neg = ($1 eq '!') ? 1 : 0;
6838 my $val = transform_token ($token, %$transform, $2);
6839 return (!!$val == $neg) ? '##%' : '';
6840 }
6841 else
6842 {
6843 prog_error "Unknown request format: $token";
6844 }
6845 }
6847 # $TEXT
6848 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6849 # -----------------------------------------
6850 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6851 # No extra parsing or post-processing is done (i.e., recognition of
6852 # rules declaration or of make variables definitions).
6853 sub preprocess_file
6854 {
6855 my ($file, %transform) = @_;
6857 # Complete %transform with global options.
6858 # Note that %transform goes last, so it overrides global options.
6859 %transform = ( 'MAINTAINER-MODE'
6860 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6862 'XZ' => !! option 'dist-xz',
6863 'LZIP' => !! option 'dist-lzip',
6864 'BZIP2' => !! option 'dist-bzip2',
6865 'COMPRESS' => !! option 'dist-tarZ',
6866 'GZIP' => ! option 'no-dist-gzip',
6867 'SHAR' => !! option 'dist-shar',
6868 'ZIP' => !! option 'dist-zip',
6869 'ZSTD' => !! option 'dist-zstd',
6870 'DIST_BUILT_SOURCES' => !! option 'dist-built-sources',
6872 'INSTALL-INFO' => ! option 'no-installinfo',
6873 'INSTALL-MAN' => ! option 'no-installman',
6874 'CK-NEWS' => !! option 'check-news',
6876 'SUBDIRS' => !! var ('SUBDIRS'),
6877 'TOPDIR_P' => $relative_dir eq '.',
6879 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6880 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6881 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6883 'LIBTOOL' => !! var ('LIBTOOL'),
6884 'NONLIBTOOL' => 1,
6885 %transform);
6887 if (! defined ($_ = $am_file_cache{$file}))
6888 {
6889 verb "reading $file";
6890 # Swallow the whole file.
6891 my $fc_file = new Automake::XFile "< $file";
6892 my $saved_dollar_slash = $/;
6893 undef $/;
6894 $_ = $fc_file->getline;
6895 $/ = $saved_dollar_slash;
6896 $fc_file->close;
6897 # Remove ##-comments.
6898 # Besides we don't need more than two consecutive new-lines.
6899 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6900 # Remember the contents of the just-read file.
6901 $am_file_cache{$file} = $_;
6902 }
6904 # Substitute Automake template tokens.
6905 s/(?: % \?? [\w\-]+ %
6906 | \? !? [\w\-]+ \?
6907 )/transform($&, %transform)/gex;
6908 # transform() may have added some ##%-comments to strip.
6909 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6910 # ####### and do not remove the latter.)
6911 s/^[ \t]*(?:##%)+.*\n//gm;
6913 return $_;
6914 }
6917 # @PARAGRAPHS
6918 # make_paragraphs ($MAKEFILE, [%TRANSFORM])
6919 # -----------------------------------------
6920 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6921 # paragraphs.
6922 sub make_paragraphs
6923 {
6924 my ($file, %transform) = @_;
6925 $transform{FIRST} = !$transformed_files{$file};
6926 $transformed_files{$file} = 1;
6928 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6929 my @res;
6931 while (defined ($_ = shift @lines))
6932 {
6933 my $paragraph = $_;
6934 # If we are a rule, eat as long as we start with a tab.
6935 if (/$RULE_PATTERN/smo)
6936 {
6937 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6938 {
6939 $paragraph .= "\n$_";
6940 }
6941 unshift (@lines, $_);
6942 }
6944 # If we are a comments, eat as much comments as you can.
6945 elsif (/$COMMENT_PATTERN/smo)
6946 {
6947 while (defined ($_ = shift @lines)
6948 && $_ =~ /$COMMENT_PATTERN/smo)
6949 {
6950 $paragraph .= "\n$_";
6951 }
6952 unshift (@lines, $_);
6953 }
6955 push @res, $paragraph;
6956 }
6958 return @res;
6959 }
6963 # ($COMMENT, $VARIABLES, $RULES)
6964 # file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6965 # ------------------------------------------------------------
6966 # Return contents of a file from $libdir/am, automatically skipping
6967 # macros or rules which are already known. $IS_AM iff the caller is
6968 # reading an Automake file (as opposed to the user's Makefile.am).
6969 sub file_contents_internal
6970 {
6971 my ($is_am, $file, $where, %transform) = @_;
6973 $where->set ($file);
6975 my $result_vars = '';
6976 my $result_rules = '';
6977 my $comment = '';
6978 my $spacing = '';
6980 # The following flags are used to track rules spanning across
6981 # multiple paragraphs.
6982 my $is_rule = 0; # 1 if we are processing a rule.
6983 my $discard_rule = 0; # 1 if the current rule should not be output.
6985 # We save the conditional stack on entry, and then check to make
6986 # sure it is the same on exit. This lets us conditionally include
6987 # other files.
6988 my @saved_cond_stack = @cond_stack;
6989 my $cond = new Automake::Condition (@cond_stack);
6991 foreach (make_paragraphs ($file, %transform))
6992 {
6993 # FIXME: no line number available.
6994 $where->set ($file);
6996 # Sanity checks.
6997 error $where, "blank line following trailing backslash:\n$_"
6998 if /\\$/;
6999 error $where, "comment following trailing backslash:\n$_"
7000 if /\\#/;
7002 if (/^$/)
7003 {
7004 $is_rule = 0;
7005 # Stick empty line before the incoming macro or rule.
7006 $spacing = "\n";
7007 }
7008 elsif (/$COMMENT_PATTERN/mso)
7009 {
7010 $is_rule = 0;
7011 # Stick comments before the incoming macro or rule.
7012 $comment = "$_\n";
7013 }
7015 # Handle inclusion of other files.
7016 elsif (/$INCLUDE_PATTERN/o)
7017 {
7018 if ($cond != FALSE)
7019 {
7020 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7021 $where->push_context ("'$file' included from here");
7022 # N-ary '.=' fails.
7023 my ($com, $vars, $rules)
7024 = file_contents_internal ($is_am, $file, $where, %transform);
7025 $where->pop_context;
7026 $comment .= $com;
7027 $result_vars .= $vars;
7028 $result_rules .= $rules;
7029 }
7030 }
7032 # Handling the conditionals.
7033 elsif (/$IF_PATTERN/o)
7034 {
7035 $cond = cond_stack_if ($1, $2, $file);
7036 }
7037 elsif (/$ELSE_PATTERN/o)
7038 {
7039 $cond = cond_stack_else ($1, $2, $file);
7040 }
7041 elsif (/$ENDIF_PATTERN/o)
7042 {
7043 $cond = cond_stack_endif ($1, $2, $file);
7044 }
7046 # Handling rules.
7047 elsif (/$RULE_PATTERN/mso)
7048 {
7049 $is_rule = 1;
7050 $discard_rule = 0;
7051 # Separate relationship from optional actions: the first
7052 # `new-line tab" not preceded by backslash (continuation
7053 # line).
7054 my $paragraph = $_;
7055 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7056 my ($relationship, $actions) = ($1, $2 || '');
7058 # Separate targets from dependencies: the first colon.
7059 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7060 my ($targets, $dependencies) = ($1, $2);
7061 # Remove the escaped new lines.
7062 # I don't know why, but I have to use a tmp $flat_deps.
7063 my $flat_deps = flatten ($dependencies);
7064 my @deps = split (' ', $flat_deps);
7066 foreach (split (' ', $targets))
7067 {
7068 # FIXME: 1. We are not robust to people defining several targets
7069 # at once, only some of them being in %dependencies. The
7070 # actions from the targets in %dependencies are usually generated
7071 # from the content of %actions, but if some targets in $targets
7072 # are not in %dependencies the ELSE branch will output
7073 # a rule for all $targets (i.e. the targets which are both
7074 # in %dependencies and $targets will have two rules).
7076 # FIXME: 2. The logic here is not able to output a
7077 # multi-paragraph rule several time (e.g. for each condition
7078 # it is defined for) because it only knows the first paragraph.
7080 # FIXME: 3. We are not robust to people defining a subset
7081 # of a previously defined "multiple-target" rule. E.g.
7082 # 'foo:' after 'foo bar:'.
7084 # Output only if not in FALSE.
7085 if (defined $dependencies{$_} && $cond != FALSE)
7086 {
7087 depend ($_, @deps);
7088 register_action ($_, $actions);
7089 }
7090 else
7091 {
7092 # Free-lance dependency. Output the rule for all the
7093 # targets instead of one by one.
7094 my @undefined_conds =
7095 Automake::Rule::define ($targets, $file,
7096 $is_am ? RULE_AUTOMAKE : RULE_USER,
7097 $cond, $where);
7098 for my $undefined_cond (@undefined_conds)
7099 {
7100 my $condparagraph = $paragraph;
7101 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7102 $result_rules .= "$spacing$comment$condparagraph\n";
7103 }
7104 if (scalar @undefined_conds == 0)
7105 {
7106 # Remember to discard next paragraphs
7107 # if they belong to this rule.
7108 # (but see also FIXME: #2 above.)
7109 $discard_rule = 1;
7110 }
7111 $comment = $spacing = '';
7112 last;
7113 }
7114 }
7115 }
7117 elsif (/$ASSIGNMENT_PATTERN/mso)
7118 {
7119 my ($var, $type, $val) = ($1, $2, $3);
7120 error $where, "variable '$var' with trailing backslash"
7121 if /\\$/;
7123 $is_rule = 0;
7125 Automake::Variable::define ($var,
7126 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7127 $type, $cond, $val, $comment, $where,
7128 VAR_ASIS)
7129 if $cond != FALSE;
7131 $comment = $spacing = '';
7132 }
7133 else
7134 {
7135 # This isn't an error; it is probably some tokens which
7136 # configure is supposed to replace, such as '@SET-MAKE@',
7137 # or some part of a rule cut by an if/endif.
7138 if (! $cond->false && ! ($is_rule && $discard_rule))
7139 {
7140 s/^/$cond->subst_string/gme;
7141 $result_rules .= "$spacing$comment$_\n";
7142 }
7143 $comment = $spacing = '';
7144 }
7145 }
7147 error ($where, @cond_stack ?
7148 "unterminated conditionals: @cond_stack" :
7149 "too many conditionals closed in include file")
7150 if "@saved_cond_stack" ne "@cond_stack";
7152 return ($comment, $result_vars, $result_rules);
7153 }
7156 # $CONTENTS
7157 # file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7158 # -----------------------------------------------
7159 # Return contents of a file from $libdir/am, automatically skipping
7160 # macros or rules which are already known.
7161 sub file_contents
7162 {
7163 my ($basename, $where, %transform) = @_;
7164 my ($comments, $variables, $rules) =
7165 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7166 %transform);
7167 return "$comments$variables$rules";
7168 }
7171 # @PREFIX
7172 # am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7173 # ----------------------------------------------------
7174 # Find all variable prefixes that are used for install directories. A
7175 # prefix 'zar' qualifies iff:
7176 #
7177 # * 'zardir' is a variable.
7178 # * 'zar_PRIMARY' is a variable.
7179 #
7180 # As a side effect, it looks for misspellings. It is an error to have
7181 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7182 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7183 # of the same name (with "dir" appended) exists. For instance, if the
7184 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7185 # This is to provide a little extra flexibility in those cases which
7186 # need it.
7187 sub am_primary_prefixes
7188 {
7189 my ($primary, $can_dist, @prefixes) = @_;
7191 local $_;
7192 my %valid = map { $_ => 0 } @prefixes;
7193 $valid{'EXTRA'} = 0;
7194 foreach my $var (variables $primary)
7195 {
7196 # Automake is allowed to define variables that look like primaries
7197 # but which aren't. E.g. INSTALL_sh_DATA.
7198 # Autoconf can also define variables like INSTALL_DATA, so
7199 # ignore all configure variables (at least those which are not
7200 # redefined in Makefile.am).
7201 # FIXME: We should make sure that these variables are not
7202 # conditionally defined (or else adjust the condition below).
7203 my $def = $var->def (TRUE);
7204 next if $def && $def->owner != VAR_MAKEFILE;
7206 my $varname = $var->name;
7208 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7209 {
7210 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7211 if ($dist ne '' && ! $can_dist)
7212 {
7213 err_var ($var,
7214 "invalid variable '$varname': 'dist' is forbidden");
7215 }
7216 # Standard directories must be explicitly allowed.
7217 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7218 {
7219 err_var ($var,
7220 "'${X}dir' is not a legitimate directory " .
7221 "for '$primary'");
7222 }
7223 # A not explicitly valid directory is allowed if Xdir is defined.
7224 elsif (! defined $valid{$X} &&
7225 $var->requires_variables ("'$varname' is used", "${X}dir"))
7226 {
7227 # Nothing to do. Any error message has been output
7228 # by $var->requires_variables.
7229 }
7230 else
7231 {
7232 # Ensure all extended prefixes are actually used.
7233 $valid{"$base$dist$X"} = 1;
7234 }
7235 }
7236 else
7237 {
7238 prog_error "unexpected variable name: $varname";
7239 }
7240 }
7242 # Return only those which are actually defined.
7243 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7244 }
7247 # am_install_var (-OPTION..., file, HOW, where...)
7248 # ------------------------------------------------
7249 #
7250 # Handle 'where_HOW' variable magic. Does all lookups, generates
7251 # install code, and possibly generates code to define the primary
7252 # variable. The first argument is the name of the .am file to munge,
7253 # the second argument is the primary variable (e.g. HEADERS), and all
7254 # subsequent arguments are possible installation locations.
7255 #
7256 # Returns list of [$location, $value] pairs, where
7257 # $value's are the values in all where_HOW variable, and $location
7258 # there associated location (the place here their parent variables were
7259 # defined).
7260 #
7261 # FIXME: this should be rewritten to be cleaner. It should be broken
7262 # up into multiple functions.
7263 #
7264 sub am_install_var
7265 {
7266 my (@args) = @_;
7268 my $do_require = 1;
7269 my $can_dist = 0;
7270 my $default_dist = 0;
7271 while (@args)
7272 {
7273 if ($args[0] eq '-noextra')
7274 {
7275 $do_require = 0;
7276 }
7277 elsif ($args[0] eq '-candist')
7278 {
7279 $can_dist = 1;
7280 }
7281 elsif ($args[0] eq '-defaultdist')
7282 {
7283 $default_dist = 1;
7284 $can_dist = 1;
7285 }
7286 elsif ($args[0] !~ /^-/)
7287 {
7288 last;
7289 }
7290 shift (@args);
7291 }
7293 my ($file, $primary, @prefix) = @args;
7295 # Now that configure substitutions are allowed in where_HOW
7296 # variables, it is an error to actually define the primary. We
7297 # allow 'JAVA', as it is customarily used to mean the Java
7298 # interpreter. This is but one of several Java hacks. Similarly,
7299 # 'PYTHON' is customarily used to mean the Python interpreter.
7300 reject_var $primary, "'$primary' is an anachronism"
7301 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7303 # Get the prefixes which are valid and actually used.
7304 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7306 # If a primary includes a configure substitution, then the EXTRA_
7307 # form is required. Otherwise we can't properly do our job.
7308 my $require_extra;
7310 my @used = ();
7311 my @result = ();
7313 foreach my $X (@prefix)
7314 {
7315 my $nodir_name = $X;
7316 my $one_name = $X . '_' . $primary;
7317 my $one_var = var $one_name;
7319 my $strip_subdir = 1;
7320 # If subdir prefix should be preserved, do so.
7321 if ($nodir_name =~ /^nobase_/)
7322 {
7323 $strip_subdir = 0;
7324 $nodir_name =~ s/^nobase_//;
7325 }
7327 # If files should be distributed, do so.
7328 my $dist_p = 0;
7329 if ($can_dist)
7330 {
7331 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7332 || (! $default_dist && $nodir_name =~ /^dist_/));
7333 $nodir_name =~ s/^(dist|nodist)_//;
7334 }
7337 # Use the location of the currently processed variable.
7338 # We are not processing a particular condition, so pick the first
7339 # available.
7340 my $tmpcond = $one_var->conditions->one_cond;
7341 my $where = $one_var->rdef ($tmpcond)->location->clone;
7343 # Append actual contents of where_PRIMARY variable to
7344 # @result, skipping @substitutions@.
7345 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7346 {
7347 my ($loc, $value) = @$locvals;
7348 # Skip configure substitutions.
7349 if ($value =~ /^\@.*\@$/)
7350 {
7351 if ($nodir_name eq 'EXTRA')
7352 {
7353 error ($where,
7354 "'$one_name' contains configure substitution, "
7355 . "but shouldn't");
7356 }
7357 # Check here to make sure variables defined in
7358 # configure.ac do not imply that EXTRA_PRIMARY
7359 # must be defined.
7360 elsif (! defined $configure_vars{$one_name})
7361 {
7362 $require_extra = $one_name
7363 if $do_require;
7364 }
7365 }
7366 else
7367 {
7368 # Strip any $(EXEEXT) suffix the user might have added,
7369 # or this will confuse handle_source_transform() and
7370 # check_canonical_spelling().
7371 # We'll add $(EXEEXT) back later anyway.
7372 # Do it here rather than in handle_programs so the
7373 # uniquifying at the end of this function works.
7374 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7375 if $primary eq 'PROGRAMS';
7377 push (@result, $locvals);
7378 }
7379 }
7380 # A blatant hack: we rewrite each _PROGRAMS primary to include
7381 # EXEEXT.
7382 append_exeext { 1 } $one_name
7383 if $primary eq 'PROGRAMS';
7384 # "EXTRA" shouldn't be used when generating clean targets,
7385 # all, or install targets. We used to warn if EXTRA_FOO was
7386 # defined uselessly, but this was annoying.
7387 next
7388 if $nodir_name eq 'EXTRA';
7390 if ($nodir_name eq 'check')
7391 {
7392 push (@check, '$(' . $one_name . ')');
7393 }
7394 else
7395 {
7396 push (@used, '$(' . $one_name . ')');
7397 }
7399 # Is this to be installed?
7400 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7402 # If so, with install-exec? (or install-data?).
7403 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7405 my $check_options_p = $install_p && !! option 'std-options';
7407 # Use the location of the currently processed variable as context.
7408 $where->push_context ("while processing '$one_name'");
7410 # The variable containing all files to distribute.
7411 my $distvar = "\$($one_name)";
7412 $distvar = shadow_unconditionally ($one_name, $where)
7413 if ($dist_p && $one_var->has_conditional_contents);
7415 # Singular form of $PRIMARY.
7416 (my $one_primary = $primary) =~ s/S$//;
7417 $output_rules .= file_contents ($file, $where,
7418 PRIMARY => $primary,
7419 ONE_PRIMARY => $one_primary,
7420 DIR => $X,
7421 NDIR => $nodir_name,
7422 BASE => $strip_subdir,
7423 EXEC => $exec_p,
7424 INSTALL => $install_p,
7425 DIST => $dist_p,
7426 DISTVAR => $distvar,
7427 'CK-OPTS' => $check_options_p);
7428 }
7430 # The JAVA variable is used as the name of the Java interpreter.
7431 # The PYTHON variable is used as the name of the Python interpreter.
7432 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7433 {
7434 # Define it.
7435 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7436 $output_vars .= "\n";
7437 }
7439 err_var ($require_extra,
7440 "'$require_extra' contains configure substitution,\n"
7441 . "but 'EXTRA_$primary' not defined")
7442 if ($require_extra && ! var ('EXTRA_' . $primary));
7444 # Push here because PRIMARY might be configure time determined.
7445 push (@all, '$(' . $primary . ')')
7446 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7448 # Make the result unique. This lets the user use conditionals in
7449 # a natural way, but still lets us program lazily -- we don't have
7450 # to worry about handling a particular object more than once.
7451 # We will keep only one location per object.
7452 my %result = ();
7453 for my $pair (@result)
7454 {
7455 my ($loc, $val) = @$pair;
7456 $result{$val} = $loc;
7457 }
7458 my @l = sort keys %result;
7459 return map { [$result{$_}->clone, $_] } @l;
7460 }
7463 ################################################################
7465 # Each key in this hash is the name of a directory holding a
7466 # Makefile.in. These variables are local to 'is_make_dir'.
7467 my %make_dirs = ();
7468 my $make_dirs_set = 0;
7470 # is_make_dir ($DIRECTORY)
7471 # ------------------------
7472 sub is_make_dir
7473 {
7474 my ($dir) = @_;
7475 if (! $make_dirs_set)
7476 {
7477 foreach my $iter (@configure_input_files)
7478 {
7479 $make_dirs{dirname ($iter)} = 1;
7480 }
7481 # We also want to notice Makefile.in's.
7482 foreach my $iter (@other_input_files)
7483 {
7484 if ($iter =~ /Makefile\.in$/)
7485 {
7486 $make_dirs{dirname ($iter)} = 1;
7487 }
7488 }
7489 $make_dirs_set = 1;
7490 }
7491 return defined $make_dirs{$dir};
7492 }
7494 ################################################################
7496 # Find the aux dir. This should match the algorithm used by
7497 # ./configure. (See the Autoconf documentation for for
7498 # AC_CONFIG_AUX_DIR.)
7499 sub locate_aux_dir ()
7500 {
7501 if (! $config_aux_dir_set_in_configure_ac)
7502 {
7503 # The default auxiliary directory is the first
7504 # of ., .., or ../.. that contains install-sh.
7505 # Assume . if install-sh doesn't exist yet.
7506 for my $dir (qw (. .. ../..))
7507 {
7508 if (-f "$dir/install-sh")
7509 {
7510 $config_aux_dir = $dir;
7511 last;
7512 }
7513 }
7514 $config_aux_dir = '.' unless $config_aux_dir;
7515 }
7516 # Avoid unsightly '/.'s.
7517 $am_config_aux_dir =
7518 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7519 $am_config_aux_dir =~ s,/*$,,;
7520 }
7523 # push_required_file ($DIR, $FILE, $FULLFILE)
7524 # -------------------------------------------
7525 # Push the given file onto DIST_COMMON.
7526 sub push_required_file
7527 {
7528 my ($dir, $file, $fullfile) = @_;
7530 # If the file to be distributed is in the same directory of the
7531 # currently processed Makefile.am, then we want to distribute it
7532 # from this same Makefile.am.
7533 if ($dir eq $relative_dir)
7534 {
7535 push_dist_common ($file);
7536 }
7537 # This is needed to allow a construct in a non-top-level Makefile.am
7538 # to require a file in the build-aux directory (see at least the test
7539 # script 'test-driver-is-distributed.sh'). This is related to the
7540 # automake bug#9546. Note that the use of $config_aux_dir instead
7541 # of $am_config_aux_dir here is deliberate and necessary.
7542 elsif ($dir eq $config_aux_dir)
7543 {
7544 push_dist_common ("$am_config_aux_dir/$file");
7545 }
7546 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7547 # We probably need some refactoring of this function and its callers,
7548 # to have a more explicit and systematic handling of all the special
7549 # cases; but, since there are only two of them, this is low-priority
7550 # ATM.
7551 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7552 {
7553 # Avoid unsightly '/.'s.
7554 my $am_config_libobj_dir =
7555 '$(top_srcdir)' .
7556 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7557 $am_config_libobj_dir =~ s|/*$||;
7558 push_dist_common ("$am_config_libobj_dir/$file");
7559 }
7560 elsif ($relative_dir eq '.' && ! is_make_dir ($dir))
7561 {
7562 # If we are doing the topmost directory, and the file is in a
7563 # subdir which does not have a Makefile, then we distribute it
7564 # here.
7566 # If a required file is above the source tree, it is important
7567 # to prefix it with '$(srcdir)' so that no VPATH search is
7568 # performed. Otherwise problems occur with Make implementations
7569 # that rewrite and simplify rules whose dependencies are found in a
7570 # VPATH location. Here is an example with OSF1/Tru64 Make.
7571 #
7572 # % cat Makefile
7573 # VPATH = sub
7574 # distdir: ../a
7575 # echo ../a
7576 # % ls
7577 # Makefile a
7578 # % make
7579 # echo a
7580 # a
7581 #
7582 # Dependency '../a' was found in 'sub/../a', but this make
7583 # implementation simplified it as 'a'. (Note that the sub/
7584 # directory does not even exist.)
7585 #
7586 # This kind of VPATH rewriting seems hard to cancel. The
7587 # distdir.am hack against VPATH rewriting works only when no
7588 # simplification is done, i.e., for dependencies which are in
7589 # subdirectories, not in enclosing directories. Hence, in
7590 # the latter case we use a full path to make sure no VPATH
7591 # search occurs.
7592 $fullfile = '$(srcdir)/' . $fullfile
7593 if $dir =~ m,^\.\.(?:$|/),;
7595 push_dist_common ($fullfile);
7596 }
7597 else
7598 {
7599 prog_error "a Makefile in relative directory $relative_dir " .
7600 "can't add files in directory $dir to DIST_COMMON";
7601 }
7602 }
7605 # If a file name appears as a key in this hash, then it has already
7606 # been checked for. This allows us not to report the same error more
7607 # than once.
7608 my %required_file_not_found = ();
7610 # required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7611 # -------------------------------------------------------
7612 # Verify that the file must exist in $DIRECTORY, or install it.
7613 sub required_file_check_or_copy
7614 {
7615 my ($where, $dir, $file) = @_;
7617 my $fullfile = "$dir/$file";
7618 my $found_it = 0;
7619 my $dangling_sym = 0;
7621 if (-l $fullfile && ! -f $fullfile)
7622 {
7623 $dangling_sym = 1;
7624 }
7625 elsif (dir_has_case_matching_file ($dir, $file))
7626 {
7627 $found_it = 1;
7628 }
7630 # '--force-missing' only has an effect if '--add-missing' is
7631 # specified.
7632 return
7633 if $found_it && (! $add_missing || ! $force_missing);
7635 # If we've already looked for it, we're done. You might wonder why we
7636 # don't do this before searching for the file. If we do that, then
7637 # something like AC_OUTPUT([subdir/foo foo]) will fail to put 'foo.in'
7638 # into $(DIST_COMMON).
7639 if (! $found_it)
7640 {
7641 return if defined $required_file_not_found{$fullfile};
7642 $required_file_not_found{$fullfile} = 1;
7643 }
7644 if ($dangling_sym && $add_missing)
7645 {
7646 unlink ($fullfile);
7647 }
7649 my $trailer = '';
7650 my $trailer2 = '';
7651 my $suppress = 0;
7653 # Only install missing files according to our desired
7654 # strictness level.
7655 my $message = "required file '$fullfile' not found";
7656 if ($add_missing)
7657 {
7658 if (-f "$libdir/$file")
7659 {
7660 $suppress = 1;
7662 # Install the missing file. Symlink if we
7663 # can, copy if we must. Note: delete the file
7664 # first, in case it is a dangling symlink.
7665 $message = "installing '$fullfile'";
7667 # The license file should not be volatile.
7668 if ($file eq "COPYING")
7669 {
7670 $message .= " using GNU General Public License v3 file";
7671 $trailer2 = "\n Consider adding the COPYING file"
7672 . " to the version control system"
7673 . "\n for your code, to avoid questions"
7674 . " about which license your project uses";
7675 }
7677 # Windows Perl will hang if we try to delete a
7678 # file that doesn't exist.
7679 unlink ($fullfile) if -f $fullfile;
7680 if ($symlink_exists && ! $copy_missing)
7681 {
7682 if (! symlink ("$libdir/$file", $fullfile)
7683 || ! -e $fullfile)
7684 {
7685 $suppress = 0;
7686 $trailer = "; error while making link: $!";
7687 }
7688 }
7689 elsif (system ('cp', "$libdir/$file", $fullfile))
7690 {
7691 $suppress = 0;
7692 $trailer = "\n error while copying";
7693 }
7694 set_dir_cache_file ($dir, $file);
7695 }
7696 }
7697 else
7698 {
7699 $trailer = "\n 'automake --add-missing' can install '$file'"
7700 if -f "$libdir/$file";
7701 }
7703 # If --force-missing was specified, and we have
7704 # actually found the file, then do nothing.
7705 return
7706 if $found_it && $force_missing;
7708 # If we couldn't install the file, but it is a target in
7709 # the Makefile, don't print anything. This allows files
7710 # like README, AUTHORS, or THANKS to be generated.
7711 return
7712 if !$suppress && rule $file;
7714 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7715 }
7718 # require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7719 # ---------------------------------------------------------------------
7720 # Verify that the file must exist in $DIRECTORY, or install it.
7721 # $MYSTRICT is the strictness level at which this file becomes required.
7722 # Worker threads may queue up the action to be serialized by the master,
7723 # if $QUEUE is true
7724 sub require_file_internal
7725 {
7726 my ($where, $mystrict, $dir, $queue, @files) = @_;
7728 return
7729 unless $strictness >= $mystrict;
7731 foreach my $file (@files)
7732 {
7733 push_required_file ($dir, $file, "$dir/$file");
7734 if ($queue)
7735 {
7736 queue_required_file_check_or_copy ($required_conf_file_queue,
7737 QUEUE_CONF_FILE, $relative_dir,
7738 $where, $mystrict, @files);
7739 }
7740 else
7741 {
7742 required_file_check_or_copy ($where, $dir, $file);
7743 }
7744 }
7745 }
7747 # require_file ($WHERE, $MYSTRICT, @FILES)
7748 # ----------------------------------------
7749 sub require_file
7750 {
7751 my ($where, $mystrict, @files) = @_;
7752 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7753 }
7755 # require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7756 # ----------------------------------------------------------
7757 sub require_file_with_macro
7758 {
7759 my ($cond, $macro, $mystrict, @files) = @_;
7760 $macro = rvar ($macro) unless ref $macro;
7761 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7762 }
7764 # require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7765 # ---------------------------------------------------------------
7766 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7767 # must be in that directory. Otherwise expect it in the current directory.
7768 sub require_libsource_with_macro
7769 {
7770 my ($cond, $macro, $mystrict, @files) = @_;
7771 $macro = rvar ($macro) unless ref $macro;
7772 if ($config_libobj_dir)
7773 {
7774 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7775 $config_libobj_dir, 0, @files);
7776 }
7777 else
7778 {
7779 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7780 }
7781 }
7783 # queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7784 # $MYSTRICT, @FILES)
7785 # --------------------------------------------------------------
7786 sub queue_required_file_check_or_copy
7787 {
7788 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7789 my @serial_loc;
7790 if (ref $where)
7791 {
7792 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7793 }
7794 else
7795 {
7796 @serial_loc = (QUEUE_STRING, $where);
7797 }
7798 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7799 }
7801 # require_queued_file_check_or_copy ($QUEUE)
7802 # ------------------------------------------
7803 sub require_queued_file_check_or_copy
7804 {
7805 my ($queue) = @_;
7806 my $where;
7807 my $dir = $queue->dequeue ();
7808 my $loc_key = $queue->dequeue ();
7809 if ($loc_key eq QUEUE_LOCATION)
7810 {
7811 $where = Automake::Location::deserialize ($queue);
7812 }
7813 elsif ($loc_key eq QUEUE_STRING)
7814 {
7815 $where = $queue->dequeue ();
7816 }
7817 else
7818 {
7819 prog_error "unexpected key $loc_key";
7820 }
7821 my $mystrict = $queue->dequeue ();
7822 my $nfiles = $queue->dequeue ();
7823 my @files;
7824 push @files, $queue->dequeue ()
7825 foreach (1 .. $nfiles);
7826 return
7827 unless $strictness >= $mystrict;
7828 foreach my $file (@files)
7829 {
7830 required_file_check_or_copy ($where, $config_aux_dir, $file);
7831 }
7832 }
7834 # require_conf_file ($WHERE, $MYSTRICT, @FILES)
7835 # ---------------------------------------------
7836 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7837 sub require_conf_file
7838 {
7839 my ($where, $mystrict, @files) = @_;
7840 my $queue = defined $required_conf_file_queue ? 1 : 0;
7841 require_file_internal ($where, $mystrict, $config_aux_dir,
7842 $queue, @files);
7843 }
7846 # require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7847 # ---------------------------------------------------------------
7848 sub require_conf_file_with_macro
7849 {
7850 my ($cond, $macro, $mystrict, @files) = @_;
7851 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7852 $mystrict, @files);
7853 }
7855 ################################################################
7857 # require_build_directory ($DIRECTORY)
7858 # ------------------------------------
7859 # Emit rules to create $DIRECTORY if needed, and return
7860 # the file that any target requiring this directory should be made
7861 # dependent upon.
7862 # We don't want to emit the rule twice, and want to reuse it
7863 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7864 sub require_build_directory
7865 {
7866 my $directory = shift;
7868 return $directory_map{$directory} if exists $directory_map{$directory};
7870 my $cdir = File::Spec->canonpath ($directory);
7872 if (exists $directory_map{$cdir})
7873 {
7874 my $stamp = $directory_map{$cdir};
7875 $directory_map{$directory} = $stamp;
7876 return $stamp;
7877 }
7879 my $dirstamp = "$cdir/\$(am__dirstamp)";
7881 $directory_map{$directory} = $dirstamp;
7882 $directory_map{$cdir} = $dirstamp;
7884 # Set a variable for the dirstamp basename.
7885 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7886 '$(am__leading_dot)dirstamp');
7888 # Directory must be removed by 'make distclean'.
7889 $clean_files{$dirstamp} = DIST_CLEAN;
7891 $output_rules .= ("$dirstamp:\n"
7892 . "\t\@\$(MKDIR_P) $directory\n"
7893 . "\t\@: > $dirstamp\n");
7895 return $dirstamp;
7896 }
7898 # require_build_directory_maybe ($FILE)
7899 # -------------------------------------
7900 # If $FILE lies in a subdirectory, emit a rule to create this
7901 # directory and return the file that $FILE should be made
7902 # dependent upon. Otherwise, just return the empty string.
7903 sub require_build_directory_maybe
7904 {
7905 my $file = shift;
7906 my $directory = dirname ($file);
7908 if ($directory ne '.')
7909 {
7910 return require_build_directory ($directory);
7911 }
7912 else
7913 {
7914 return '';
7915 }
7916 }
7918 ################################################################
7920 # Push a list of files onto '@dist_common'.
7921 sub push_dist_common
7922 {
7923 prog_error "push_dist_common run after handle_dist"
7924 if $handle_dist_run;
7925 push @dist_common, @_;
7926 }
7929 ################################################################
7931 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7932 # ----------------------------------------------
7933 # Generate a Makefile.in given the name of the corresponding Makefile and
7934 # the name of the file output by config.status.
7935 sub generate_makefile
7936 {
7937 my ($makefile_am, $makefile_in) = @_;
7939 # Reset all the Makefile.am related variables.
7940 initialize_per_input;
7942 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7943 # warnings for this file. So hold any warning issued before
7944 # we have processed AUTOMAKE_OPTIONS.
7945 buffer_messages ('warning');
7947 # $OUTPUT is encoded. If it contains a ":" then the first element
7948 # is the real output file, and all remaining elements are input
7949 # files. We don't scan or otherwise deal with these input files,
7950 # other than to mark them as dependencies. See the subroutine
7951 # 'scan_autoconf_files' for details.
7952 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7954 $relative_dir = dirname ($makefile);
7956 read_main_am_file ($makefile_am, $makefile_in);
7957 if (not handle_options)
7958 {
7959 # Process buffered warnings.
7960 flush_messages;
7961 # Fatal error. Just return, so we can continue with next file.
7962 return;
7963 }
7964 # Process buffered warnings.
7965 flush_messages;
7967 # There are a few install-related variables that you should not define.
7968 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7969 {
7970 my $v = var $var;
7971 if ($v)
7972 {
7973 my $def = $v->def (TRUE);
7974 prog_error "$var not defined in condition TRUE"
7975 unless $def;
7976 reject_var $var, "'$var' should not be defined"
7977 if $def->owner != VAR_AUTOMAKE;
7978 }
7979 }
7981 # Catch some obsolete variables.
7982 msg_var ('obsolete', 'INCLUDES',
7983 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7984 if var ('INCLUDES');
7986 # Must do this after reading .am file.
7987 define_variable ('subdir', $relative_dir, INTERNAL);
7989 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7990 # recursive rules are enabled.
7991 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7992 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7994 # Check first, because we might modify some state.
7995 check_gnu_standards;
7996 check_gnits_standards;
7998 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7999 handle_gettext;
8001 handle_targets;
8002 handle_libraries;
8003 handle_ltlibraries;
8004 handle_programs;
8005 handle_scripts;
8007 handle_silent;
8009 # These must be run after all the sources are scanned. They use
8010 # variables defined by handle_libraries(), handle_ltlibraries(),
8011 # or handle_programs().
8012 handle_compile;
8013 handle_languages;
8014 handle_libtool;
8016 # Variables used by distdir.am and tags.am.
8017 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8018 if (! option 'no-dist')
8019 {
8020 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8021 }
8023 handle_texinfo;
8024 handle_emacs_lisp;
8025 handle_python;
8026 handle_java;
8027 handle_man_pages;
8028 handle_data;
8029 handle_headers;
8030 handle_subdirs;
8031 handle_user_recursion;
8032 handle_tags;
8033 handle_minor_options;
8034 # Must come after handle_programs so that %known_programs is up-to-date.
8035 handle_tests;
8037 # This must come after most other rules.
8038 handle_dist;
8040 handle_footer;
8041 do_check_merge_target;
8042 handle_all ($makefile);
8044 # FIXME: Gross!
8045 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8046 {
8047 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8048 }
8049 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8050 {
8051 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8052 }
8054 handle_install;
8055 handle_clean ($makefile);
8056 handle_factored_dependencies;
8058 # Comes last, because all the above procedures may have
8059 # defined or overridden variables.
8060 $output_vars .= output_variables;
8062 check_typos;
8064 if ($exit_code != 0)
8065 {
8066 verb "not writing $makefile_in because of earlier errors";
8067 return;
8068 }
8070 my $am_relative_dir = dirname ($makefile_am);
8071 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8073 # We make sure that 'all:' is the first target.
8074 my $output =
8075 "$output_vars$output_all$output_header$output_rules$output_trailer";
8077 # Decide whether we must update the output file or not.
8078 # We have to update in the following situations.
8079 # * $force_generation is set.
8080 # * any of the output dependencies is younger than the output
8081 # * the contents of the output is different (this can happen
8082 # if the project has been populated with a file listed in
8083 # @common_files since the last run).
8084 # Output's dependencies are split in two sets:
8085 # * dependencies which are also configure dependencies
8086 # These do not change between each Makefile.am
8087 # * other dependencies, specific to the Makefile.am being processed
8088 # (such as the Makefile.am itself, or any Makefile fragment
8089 # it includes).
8090 my $timestamp = mtime $makefile_in;
8091 if (! $force_generation
8092 && $configure_deps_greatest_timestamp < $timestamp
8093 && $output_deps_greatest_timestamp < $timestamp
8094 && $output eq contents ($makefile_in))
8095 {
8096 verb "$makefile_in unchanged";
8097 # No need to update.
8098 return;
8099 }
8101 if (-e $makefile_in)
8102 {
8103 unlink ($makefile_in)
8104 or fatal "cannot remove $makefile_in: $!";
8105 }
8107 my $gm_file = new Automake::XFile "> $makefile_in";
8108 verb "creating $makefile_in";
8109 print $gm_file $output;
8110 }
8113 ################################################################
8116 # Helper function for usage().
8117 sub print_autodist_files
8118 {
8119 my @lcomm = uniq (sort @_);
8121 my @four;
8122 format USAGE_FORMAT =
8123 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8124 $four[0], $four[1], $four[2], $four[3]
8125 .
8126 local $~ = "USAGE_FORMAT";
8128 my $cols = 4;
8129 my $rows = int(@lcomm / $cols);
8130 my $rest = @lcomm % $cols;
8132 if ($rest)
8133 {
8134 $rows++;
8135 }
8136 else
8137 {
8138 $rest = $cols;
8139 }
8141 for (my $y = 0; $y < $rows; $y++)
8142 {
8143 @four = ("", "", "", "");
8144 for (my $x = 0; $x < $cols; $x++)
8145 {
8146 last if $y + 1 == $rows && $x == $rest;
8148 my $idx = (($x > $rest)
8149 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8150 : ($rows * $x));
8152 $idx += $y;
8153 $four[$x] = $lcomm[$idx];
8154 }
8155 write;
8156 }
8157 }
8160 sub usage ()
8161 {
8162 print "Usage: $0 [OPTION]... [Makefile]...
8164 Generate Makefile.in for configure from Makefile.am.
8166 Operation modes:
8167 --help print this help, then exit
8168 --version print version number, then exit
8169 -v, --verbose verbosely list files processed
8170 --no-force only update Makefile.in's that are out of date
8171 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8173 Dependency tracking:
8174 -i, --ignore-deps disable dependency tracking code
8175 --include-deps enable dependency tracking code
8177 Flavors:
8178 --foreign set strictness to foreign
8179 --gnits set strictness to gnits
8180 --gnu set strictness to gnu
8182 Library files:
8183 -a, --add-missing add missing standard files to package
8184 --libdir=DIR set directory storing library files
8185 --print-libdir print directory storing library files
8186 -c, --copy with -a, copy missing files (default is symlink)
8187 -f, --force-missing force update of standard files
8189 ";
8190 print Automake::ChannelDefs::usage (), "\n";
8192 print "\nFiles automatically distributed if found " .
8193 "(always):\n";
8194 print_autodist_files @common_files;
8195 print "\nFiles automatically distributed if found " .
8196 "(as .md if needed):\n";
8197 print_autodist_files (map { "${_}[.md]" } @toplevelmd_ok);
8198 print "\nFiles automatically distributed if found " .
8199 "(under certain conditions):\n";
8200 print_autodist_files @common_sometimes, 'README-alpha[.md]';
8202 print '
8203 Report bugs to <@PACKAGE_BUGREPORT@>.
8204 GNU Automake home page: <@PACKAGE_URL@>.
8205 General help using GNU software: <https://www.gnu.org/gethelp/>.
8206 ';
8208 # --help always returns 0 per GNU standards.
8209 exit 0;
8210 }
8213 sub version ()
8214 {
8215 print <<EOF;
8216 automake (GNU $PACKAGE) $VERSION
8217 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8218 License GPLv2+: GNU GPL version 2 or later <https://gnu.org/licenses/gpl-2.0.html>
8219 This is free software: you are free to change and redistribute it.
8220 There is NO WARRANTY, to the extent permitted by law.
8222 Written by Tom Tromey <tromey\@redhat.com>
8223 and Alexandre Duret-Lutz <adl\@gnu.org>.
8224 EOF
8225 # --version always returns 0 per GNU standards.
8226 exit 0;
8227 }
8229 ################################################################
8231 # Parse command line.
8232 sub parse_arguments ()
8233 {
8234 my $strict = 'gnu';
8235 my $ignore_deps = 0;
8236 my @warnings = ();
8238 my %cli_options =
8239 (
8240 'version' => \&version,
8241 'help' => \&usage,
8242 'libdir=s' => \$libdir,
8243 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8244 'gnu' => sub { $strict = 'gnu'; },
8245 'gnits' => sub { $strict = 'gnits'; },
8246 'foreign' => sub { $strict = 'foreign'; },
8247 'include-deps' => sub { $ignore_deps = 0; },
8248 'i|ignore-deps' => sub { $ignore_deps = 1; },
8249 'no-force' => sub { $force_generation = 0; },
8250 'f|force-missing' => \$force_missing,
8251 'a|add-missing' => \$add_missing,
8252 'c|copy' => \$copy_missing,
8253 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8254 'W|warnings=s' => \@warnings,
8255 );
8257 use Automake::Getopt ();
8258 Automake::Getopt::parse_options %cli_options;
8260 set_strictness ($strict);
8261 my $cli_where = new Automake::Location;
8262 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8263 parse_warnings @warnings;
8265 return unless @ARGV;
8267 my $errspec = 0;
8268 foreach my $arg (@ARGV)
8269 {
8270 fatal ("empty argument\nTry '$0 --help' for more information")
8271 if ($arg eq '');
8273 # Handle $local:$input syntax.
8274 my ($local, @rest) = split (/:/, $arg);
8275 @rest = ("$local.in",) unless @rest;
8276 my $input = locate_am @rest;
8277 if ($input)
8278 {
8279 push @input_files, $input;
8280 $output_files{$input} = join (':', ($local, @rest));
8281 }
8282 else
8283 {
8284 error "no Automake input file found for '$arg'";
8285 $errspec = 1;
8286 }
8287 }
8288 fatal "no input file found among supplied arguments"
8289 if $errspec && ! @input_files;
8290 }
8293 # handle_makefile ($MAKEFILE)
8294 # ---------------------------
8295 sub handle_makefile
8296 {
8297 my ($file) = @_;
8298 ($am_file = $file) =~ s/\.in$//;
8299 if (! -f ($am_file . '.am'))
8300 {
8301 error "'$am_file.am' does not exist";
8302 }
8303 else
8304 {
8305 # Any warning setting now local to this Makefile.am.
8306 dup_channel_setup;
8308 generate_makefile ($am_file . '.am', $file);
8310 # Back out any warning setting.
8311 drop_channel_setup;
8312 }
8313 }
8315 # Deal with all makefiles, without threads.
8316 sub handle_makefiles_serial ()
8317 {
8318 foreach my $file (@input_files)
8319 {
8320 handle_makefile ($file);
8321 }
8322 }
8324 # Logic for deciding how many worker threads to use.
8325 sub get_number_of_threads ()
8326 {
8327 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8329 $nthreads = 0
8330 unless $nthreads =~ /^[0-9]+$/;
8332 # It doesn't make sense to use more threads than makefiles,
8333 my $max_threads = @input_files;
8335 if ($nthreads > $max_threads)
8336 {
8337 $nthreads = $max_threads;
8338 }
8339 return $nthreads;
8340 }
8342 # handle_makefiles_threaded ($NTHREADS)
8343 # -------------------------------------
8344 # Deal with all makefiles, using threads. The general strategy is to
8345 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8346 # worker threads push back everything that needs serialization:
8347 # * warning and (normal) error messages, for stable stderr output
8348 # order and content (avoiding duplicates, for example),
8349 # * races when installing aux files (and respective messages),
8350 # * races when collecting aux files for distribution.
8351 #
8352 # The latter requires that the makefile that deals with the aux dir
8353 # files be handled last, done by the master thread.
8354 sub handle_makefiles_threaded
8355 {
8356 my ($nthreads) = @_;
8358 # The file queue distributes all makefiles, the message queues
8359 # collect all serializations needed for respective files.
8360 my $file_queue = Thread::Queue->new;
8361 my %msg_queues;
8362 foreach my $file (@input_files)
8363 {
8364 $msg_queues{$file} = Thread::Queue->new;
8365 }
8367 verb "spawning $nthreads worker threads";
8368 my @threads = (1 .. $nthreads);
8369 foreach my $t (@threads)
8370 {
8371 $t = threads->new (sub
8372 {
8373 while (my $file = $file_queue->dequeue)
8374 {
8375 verb "handling $file";
8376 my $queue = $msg_queues{$file};
8377 setup_channel_queue ($queue, QUEUE_MESSAGE);
8378 $required_conf_file_queue = $queue;
8379 handle_makefile ($file);
8380 $queue->enqueue (undef);
8381 setup_channel_queue (undef, undef);
8382 $required_conf_file_queue = undef;
8383 }
8384 return $exit_code;
8385 });
8386 }
8388 # Queue all makefiles.
8389 verb "queuing " . @input_files . " input files";
8390 $file_queue->enqueue (@input_files, (undef) x @threads);
8392 # Collect and process serializations.
8393 foreach my $file (@input_files)
8394 {
8395 verb "dequeuing messages for " . $file;
8396 reset_local_duplicates ();
8397 my $queue = $msg_queues{$file};
8398 while (my $key = $queue->dequeue)
8399 {
8400 if ($key eq QUEUE_MESSAGE)
8401 {
8402 pop_channel_queue ($queue);
8403 }
8404 elsif ($key eq QUEUE_CONF_FILE)
8405 {
8406 require_queued_file_check_or_copy ($queue);
8407 }
8408 else
8409 {
8410 prog_error "unexpected key $key";
8411 }
8412 }
8413 }
8415 foreach my $t (@threads)
8416 {
8417 my @exit_thread = $t->join;
8418 $exit_code = $exit_thread[0]
8419 if ($exit_thread[0] > $exit_code);
8420 }
8421 }
8423 ################################################################
8425 # Parse the WARNINGS environment variable.
8426 parse_WARNINGS;
8428 # Parse command line.
8429 parse_arguments;
8431 $configure_ac = require_configure_ac;
8433 # Do configure.ac scan only once.
8434 scan_autoconf_files;
8436 if (! @input_files)
8437 {
8438 my $msg = '';
8439 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8440 if -f 'Makefile.am';
8441 fatal ("no 'Makefile.am' found for any configure output$msg");
8442 }
8444 my $nthreads = get_number_of_threads ();
8446 if ($perl_threads && $nthreads >= 1)
8447 {
8448 handle_makefiles_threaded ($nthreads);
8449 }
8450 else
8451 {
8452 handle_makefiles_serial ();
8453 }
8455 exit $exit_code;