| blob | 16fb45182640da539885be1124223ed71f5225e2 |
1 #!@PERL@ -w
2 # -*- perl -*-
3 # @configure_input@
5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
6 if 0;
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994-2018 Free Software Foundation, Inc.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2, or (at your option)
14 # any later version.
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program. If not, see <https://www.gnu.org/licenses/>.
24 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
25 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
26 # Alexandre Duret-Lutz <adl@gnu.org>.
28 package Automake;
30 use strict;
32 BEGIN
33 {
34 unshift (@INC, '@datadir@/@PACKAGE@-@APIVERSION@')
35 unless $ENV{AUTOMAKE_UNINSTALLED};
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the "if DJGPP" guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
45 }
47 use Automake::Config;
48 BEGIN
49 {
50 if ($perl_threads)
51 {
52 require threads;
53 import threads;
54 require Thread::Queue;
55 import Thread::Queue;
56 }
57 }
58 use Automake::General;
59 use Automake::XFile;
60 use Automake::Channels;
61 use Automake::ChannelDefs;
62 use Automake::Configure_ac;
63 use Automake::FileUtils;
64 use Automake::Location;
65 use Automake::Condition qw/TRUE FALSE/;
66 use Automake::DisjConditions;
67 use Automake::Options;
68 use Automake::Variable;
69 use Automake::VarDef;
70 use Automake::Rule;
71 use Automake::RuleDef;
72 use Automake::Wrap 'makefile_wrap';
73 use Automake::Language;
74 use File::Basename;
75 use File::Spec;
76 use List::Util 'none';
77 use Carp;
79 ## ----------------------- ##
80 ## Subroutine prototypes. ##
81 ## ----------------------- ##
83 sub append_exeext (&$);
84 sub check_gnits_standards ();
85 sub check_gnu_standards ();
86 sub check_trailing_slash ($\$);
87 sub check_typos ();
88 sub define_files_variable ($\@$$);
89 sub define_standard_variables ();
90 sub define_verbose_libtool ();
91 sub define_verbose_texinfo ();
92 sub do_check_merge_target ();
93 sub get_number_of_threads ();
94 sub handle_compile ();
95 sub handle_data ();
96 sub handle_dist ();
97 sub handle_emacs_lisp ();
98 sub handle_factored_dependencies ();
99 sub handle_footer ();
100 sub handle_gettext ();
101 sub handle_headers ();
102 sub handle_install ();
103 sub handle_java ();
104 sub handle_languages ();
105 sub handle_libraries ();
106 sub handle_libtool ();
107 sub handle_ltlibraries ();
108 sub handle_makefiles_serial ();
109 sub handle_man_pages ();
110 sub handle_minor_options ();
111 sub handle_options ();
112 sub handle_programs ();
113 sub handle_python ();
114 sub handle_scripts ();
115 sub handle_silent ();
116 sub handle_subdirs ();
117 sub handle_tags ();
118 sub handle_targets ();
119 sub handle_tests ();
120 sub handle_tests_dejagnu ();
121 sub handle_texinfo ();
122 sub handle_user_recursion ();
123 sub initialize_per_input ();
124 sub lang_lex_finish ();
125 sub lang_sub_obj ();
126 sub lang_vala_finish ();
127 sub lang_yacc_finish ();
128 sub locate_aux_dir ();
129 sub parse_arguments ();
130 sub scan_aclocal_m4 ();
131 sub scan_autoconf_files ();
132 sub silent_flag ();
133 sub transform ($\%);
134 sub transform_token ($\%$);
135 sub usage ();
136 sub version ();
137 sub yacc_lex_finish_helper ();
139 ## ----------- ##
140 ## Constants. ##
141 ## ----------- ##
143 # Some regular expressions. One reason to put them here is that it
144 # makes indentation work better in Emacs.
146 # Writing singled-quoted-$-terminated regexes is a pain because
147 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
148 # by a closing quote. Letting perl-mode think the quote is not closed
149 # leads to all sort of misindentations. On the other hand, defining
150 # regexes as double-quoted strings is far less readable. So usually
151 # we will write:
152 #
153 # $REGEX = '^regex_value' . "\$";
155 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
156 my $WHITE_PATTERN = '^\s*' . "\$";
157 my $COMMENT_PATTERN = '^#';
158 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
159 # A rule has three parts: a list of targets, a list of dependencies,
160 # and optionally actions.
161 my $RULE_PATTERN =
162 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
164 # Only recognize leading spaces, not leading tabs. If we recognize
165 # leading tabs here then we need to make the reader smarter, because
166 # otherwise it will think rules like 'foo=bar; \' are errors.
167 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
168 # This pattern recognizes a Gnits version id and sets $1 if the
169 # release is an alpha release. We also allow a suffix which can be
170 # used to extend the version number with a "fork" identifier.
171 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
173 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
174 my $ELSE_PATTERN =
175 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
176 my $ENDIF_PATTERN =
177 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
178 my $PATH_PATTERN = '(\w|[+/.-])+';
179 # This will pass through anything not of the prescribed form.
180 my $INCLUDE_PATTERN = ('^include\s+'
181 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
182 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
183 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
185 # Directories installed during 'install-exec' phase.
186 my $EXEC_DIR_PATTERN =
187 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
189 # Values for AC_CANONICAL_*
190 use constant AC_CANONICAL_BUILD => 1;
191 use constant AC_CANONICAL_HOST => 2;
192 use constant AC_CANONICAL_TARGET => 3;
194 # Values indicating when something should be cleaned.
195 use constant MOSTLY_CLEAN => 0;
196 use constant CLEAN => 1;
197 use constant DIST_CLEAN => 2;
198 use constant MAINTAINER_CLEAN => 3;
200 # Libtool files.
201 my @libtool_files = qw(ltmain.sh config.guess config.sub);
202 # ltconfig appears here for compatibility with old versions of libtool.
203 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
205 # Commonly found files we look for and automatically include in
206 # DISTFILES.
207 my @common_files =
208 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
209 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS 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 { $dname =~ /$_$/ } @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-object' 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 msg_var 'unsupported', $var,
1851 "source file '$full' is in a subdirectory,"
1852 . "\nbut option 'subdir-objects' is disabled";
1853 msg 'unsupported', INTERNAL, <<'EOF', uniq_scope => US_GLOBAL;
1854 possible forward-incompatibility.
1855 At least a source file is in a subdirectory, but the 'subdir-objects'
1856 automake option hasn't been enabled. For now, the corresponding output
1857 object file(s) will be placed in the top-level directory. However,
1858 this behaviour will change in future Automake versions: they will
1859 unconditionally cause object files to be placed in the same subdirectory
1860 of the corresponding sources.
1861 You are advised to start using 'subdir-objects' option throughout your
1862 project, to avoid future incompatibilities.
1863 EOF
1864 }
1865 }
1867 # If the object file has been renamed (because per-target
1868 # flags are used) we cannot compile the file with an
1869 # inference rule: we need an explicit rule.
1870 #
1871 # If the source is in a subdirectory and the object is in
1872 # the current directory, we also need an explicit rule.
1873 #
1874 # If both source and object files are in a subdirectory
1875 # (this happens when the subdir-objects option is used),
1876 # then the inference will work.
1877 #
1878 # The latter case deserves a historical note. When the
1879 # subdir-objects option was added on 1999-04-11 it was
1880 # thought that inferences rules would work for
1881 # subdirectory objects too. Later, on 1999-11-22,
1882 # automake was changed to output explicit rules even for
1883 # subdir-objects. Nobody remembers why, but this occurred
1884 # soon after the merge of the user-dep-gen-branch so it
1885 # might be related. In late 2003 people complained about
1886 # the size of the generated Makefile.ins (libgcj, with
1887 # 2200+ subdir objects was reported to have a 9MB
1888 # Makefile), so we now rely on inference rules again.
1889 # Maybe we'll run across the same issue as in the past,
1890 # but at least this time we can document it. However since
1891 # dependency tracking has evolved it is possible that
1892 # our old problem no longer exists.
1893 # Using inference rules for subdir-objects has been tested
1894 # with GNU make, Solaris make, Ultrix make, BSD make,
1895 # HP-UX make, and OSF1 make successfully.
1896 if ($renamed
1897 || ($directory ne '' && ! option 'subdir-objects')
1898 # We must also use specific rules for a nodist_ source
1899 # if its language requests it.
1900 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1901 {
1902 my $obj_sans_ext = substr ($object, 0,
1903 - length ($this_obj_ext));
1904 my $full_ansi;
1905 if ($directory ne '')
1906 {
1907 $full_ansi = $directory . '/' . $base . $extension;
1908 }
1909 else
1910 {
1911 $full_ansi = $base . $extension;
1912 }
1914 my @specifics = ($full_ansi, $obj_sans_ext,
1915 # Only use $this_obj_ext in the derived
1916 # source case because in the other case we
1917 # *don't* want $(OBJEXT) to appear here.
1918 ($derived_source ? $this_obj_ext : '.o'),
1919 $extension);
1921 # If we renamed the object then we want to use the
1922 # per-executable flag name. But if this is simply a
1923 # subdir build then we still want to use the AM_ flag
1924 # name.
1925 if ($renamed)
1926 {
1927 unshift @specifics, $derived;
1928 $aggregate = $derived;
1929 }
1930 else
1931 {
1932 unshift @specifics, 'AM';
1933 }
1935 # Each item on this list is a reference to a list consisting
1936 # of four values followed by additional transform flags for
1937 # file_contents. The four values are the derived flag prefix
1938 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1939 # source file, the base name of the output file, and
1940 # the extension for the object file.
1941 push (@{$lang_specific_files{$lang->name}},
1942 [@specifics, %transform]);
1943 }
1944 }
1945 elsif ($extension eq $obj)
1946 {
1947 # This is probably the result of a direct suffix rule.
1948 # In this case we just accept the rewrite.
1949 $object = "$base$extension";
1950 $object = "$directory/$object" if $directory ne '';
1951 $linker = '';
1952 }
1953 else
1954 {
1955 # No error message here. Used to have one, but it was
1956 # very unpopular.
1957 # FIXME: we could potentially do more processing here,
1958 # perhaps treating the new extension as though it were a
1959 # new source extension (as above). This would require
1960 # more restructuring than is appropriate right now.
1961 next;
1962 }
1964 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1965 if (defined $object_map{$object}
1966 && $object_map{$object} ne $full);
1968 my $comp_val = (($object =~ /\.lo$/)
1969 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1970 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1971 if (defined $object_compilation_map{$comp_obj}
1972 && $object_compilation_map{$comp_obj} != 0
1973 # Only see the error once.
1974 && ($object_compilation_map{$comp_obj}
1975 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1976 && $object_compilation_map{$comp_obj} != $comp_val)
1977 {
1978 err_am "object '$comp_obj' created both with libtool and without";
1979 }
1980 $object_compilation_map{$comp_obj} |= $comp_val;
1982 if (defined $lang)
1983 {
1984 # Let the language do some special magic if required.
1985 $lang->target_hook ($aggregate, $object, $full, %transform);
1986 }
1988 if ($derived_source)
1989 {
1990 prog_error ($lang->name . " has automatic dependency tracking")
1991 if $lang->autodep ne 'no';
1992 # Make sure this new source file is handled next. That will
1993 # make it appear to be at the right place in the list.
1994 unshift (@files, $object);
1995 # Distribute derived sources unless the source they are
1996 # derived from is not.
1997 push_dist_common ($object)
1998 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1999 next;
2000 }
2002 $linkers_used{$linker} = 1;
2004 push (@result, $object);
2006 if (! defined $object_map{$object})
2007 {
2008 my @dep_list = ();
2009 $object_map{$object} = $full;
2011 # If resulting object is in subdir, we need to make
2012 # sure the subdir exists at build time.
2013 if ($object =~ /\//)
2014 {
2015 # FIXME: check that $DIRECTORY is somewhere in the
2016 # project
2018 # For Java, the way we're handling it right now, a
2019 # '..' component doesn't make sense.
2020 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2021 {
2022 err_am "'$full' should not contain a '..' component";
2023 }
2025 # Make sure *all* objects files in the subdirectory are
2026 # removed by "make mostlyclean". Not only this is more
2027 # efficient than listing the object files to be removed
2028 # individually (which would cause an 'rm' invocation for
2029 # each of them -- very inefficient, see bug#10697), it
2030 # would also leave stale object files in the subdirectory
2031 # whenever a source file there is removed or renamed.
2032 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
2033 if ($object =~ /\.lo$/)
2034 {
2035 # If we have a libtool object, then we also must remove
2036 # any '.lo' objects in its same subdirectory.
2037 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
2038 # Remember to cleanup .libs/ in this directory.
2039 $libtool_clean_directories{$directory} = 1;
2040 }
2042 push (@dep_list, require_build_directory ($directory));
2044 # If we're generating dependencies, we also want
2045 # to make sure that the appropriate subdir of the
2046 # .deps directory is created.
2047 push (@dep_list,
2048 require_build_directory ($directory . '/$(DEPDIR)'))
2049 unless option 'no-dependencies';
2050 }
2052 pretty_print_rule ($object . ':', "\t", @dep_list)
2053 if scalar @dep_list > 0;
2054 }
2056 # Transform .o or $o file into .P file (for automatic
2057 # dependency code).
2058 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2059 # might fail over them in an include statement.
2060 # Leading double slashes may be special, as per Posix, so deal
2061 # with them carefully.
2062 if ($lang && $lang->autodep ne 'no')
2063 {
2064 my $depfile = $object;
2065 $depfile =~ s/\.([^.]*)$/.P$1/;
2066 $depfile =~ s/\$\(OBJEXT\)$/o/;
2067 my $maybe_extra_leading_slash = '';
2068 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2069 $depfile =~ s,/+,/,g;
2070 my $basename = basename ($depfile);
2071 # This might make $dirname empty, but we account for that below.
2072 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2073 $dirname = $maybe_extra_leading_slash . $dirname;
2074 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2075 }
2076 }
2078 return @result;
2079 }
2082 # $LINKER
2083 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2084 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2085 # ---------------------------------------------------------------------------
2086 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2087 #
2088 # Arguments are:
2089 # $VAR is the name of the _SOURCES variable
2090 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2091 # it will be generated and returned).
2092 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2093 # work done to determine the linker will be).
2094 # $ONE_FILE is the canonical (transformed) name of object to build
2095 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2096 # $TOPPARENT is the _SOURCES variable being processed.
2097 # $WHERE context into which this definition is done
2098 # %TRANSFORM extra arguments to pass to file_contents when producing
2099 # rules
2100 #
2101 # Result is a pair ($LINKER, $OBJVAR):
2102 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2103 sub define_objects_from_sources
2104 {
2105 my ($var, $objvar, $nodefine, $one_file,
2106 $obj, $topparent, $where, %transform) = @_;
2108 my $needlinker = "";
2110 transform_variable_recursively
2111 ($var, $objvar, 'am__objects', $nodefine, $where,
2112 # The transform code to run on each filename.
2113 sub {
2114 my ($subvar, $val, $cond, $full_cond) = @_;
2115 my @trans = handle_single_transform ($subvar, $topparent,
2116 $one_file, $obj, $val,
2117 %transform);
2118 $needlinker = "true" if @trans;
2119 return @trans;
2120 });
2122 return $needlinker;
2123 }
2126 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2127 # -----------------------------------------------------------------------------
2128 # Handle SOURCE->OBJECT transform for one program or library.
2129 # Arguments are:
2130 # canonical (transformed) name of target to build
2131 # actual target of object to build
2132 # object extension (i.e., either '.o' or '$o')
2133 # location of the source variable
2134 # extra arguments to pass to file_contents when producing rules
2135 # Return the name of the linker variable that must be used.
2136 # Empty return means just use 'LINK'.
2137 sub handle_source_transform
2138 {
2139 # one_file is canonical name. unxformed is given name. obj is
2140 # object extension.
2141 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2143 my $linker = '';
2145 # No point in continuing if _OBJECTS is defined.
2146 return if reject_var ($one_file . '_OBJECTS',
2147 $one_file . '_OBJECTS should not be defined');
2149 my %used_pfx = ();
2150 my $needlinker;
2151 %linkers_used = ();
2152 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2153 'dist_EXTRA_', 'nodist_EXTRA_')
2154 {
2155 my $varname = $prefix . $one_file . "_SOURCES";
2156 my $var = var $varname;
2157 next unless $var;
2159 # We are going to define _OBJECTS variables using the prefix.
2160 # Then we glom them all together. So we can't use the null
2161 # prefix here as we need it later.
2162 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2164 # Keep track of which prefixes we saw.
2165 $used_pfx{$xpfx} = 1
2166 unless $prefix =~ /EXTRA_/;
2168 push @sources, "\$($varname)";
2169 push @dist_sources, shadow_unconditionally ($varname, $where)
2170 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2172 $needlinker |=
2173 define_objects_from_sources ($varname,
2174 $xpfx . $one_file . '_OBJECTS',
2175 !!($prefix =~ /EXTRA_/),
2176 $one_file, $obj, $varname, $where,
2177 DIST_SOURCE => ($prefix !~ /^nodist_/),
2178 %transform);
2179 }
2180 if ($needlinker)
2181 {
2182 $linker ||= resolve_linker (%linkers_used);
2183 }
2185 my @keys = sort keys %used_pfx;
2186 if (scalar @keys == 0)
2187 {
2188 # The default source for libfoo.la is libfoo.c, but for
2189 # backward compatibility we first look at libfoo_la.c,
2190 # if no default source suffix is given.
2191 my $old_default_source = "$one_file.c";
2192 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2193 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2194 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2195 if $default_source_ext =~ /[\t ]/;
2196 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2197 # TODO: Remove this backward-compatibility hack in Automake 2.0.
2198 if ($old_default_source ne $default_source
2199 && !$ext_var
2200 && (rule $old_default_source
2201 || rule '$(srcdir)/' . $old_default_source
2202 || rule '${srcdir}/' . $old_default_source
2203 || -f $old_default_source))
2204 {
2205 my $loc = $where->clone;
2206 $loc->pop_context;
2207 msg ('obsolete', $loc,
2208 "the default source for '$unxformed' has been changed "
2209 . "to '$default_source'.\n(Using '$old_default_source' for "
2210 . "backward compatibility.)");
2211 $default_source = $old_default_source;
2212 }
2213 # If a rule exists to build this source with a $(srcdir)
2214 # prefix, use that prefix in our variables too. This is for
2215 # the sake of BSD Make.
2216 if (rule '$(srcdir)/' . $default_source
2217 || rule '${srcdir}/' . $default_source)
2218 {
2219 $default_source = '$(srcdir)/' . $default_source;
2220 }
2222 define_variable ($one_file . "_SOURCES", $default_source, $where);
2223 push (@sources, $default_source);
2224 push (@dist_sources, $default_source);
2226 %linkers_used = ();
2227 my (@result) =
2228 handle_single_transform ($one_file . '_SOURCES',
2229 $one_file . '_SOURCES',
2230 $one_file, $obj,
2231 $default_source, %transform);
2232 $linker ||= resolve_linker (%linkers_used);
2233 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2234 }
2235 else
2236 {
2237 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2238 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2239 }
2241 # If we want to use 'LINK' we must make sure it is defined.
2242 if ($linker eq '')
2243 {
2244 $need_link = 1;
2245 }
2247 return $linker;
2248 }
2251 # handle_lib_objects ($XNAME, $VAR)
2252 # ---------------------------------
2253 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2254 # Also, generate _DEPENDENCIES variable if appropriate.
2255 # Arguments are:
2256 # transformed name of object being built, or empty string if no object
2257 # name of _LDADD/_LIBADD-type variable to examine
2258 # Returns 1 if LIBOBJS seen, 0 otherwise.
2259 sub handle_lib_objects
2260 {
2261 my ($xname, $varname) = @_;
2263 my $var = var ($varname);
2264 prog_error "'$varname' undefined"
2265 unless $var;
2266 prog_error "unexpected variable name '$varname'"
2267 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2268 my $prefix = $1 || 'AM_';
2270 my $seen_libobjs = 0;
2271 my $flagvar = 0;
2273 transform_variable_recursively
2274 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2275 ! $xname, INTERNAL,
2276 # Transformation function, run on each filename.
2277 sub {
2278 my ($subvar, $val, $cond, $full_cond) = @_;
2280 if ($val =~ /^-/)
2281 {
2282 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2283 if ($val !~ /^-[lL]/ &&
2284 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2285 # for Libtool libraries or programs. (Actually we are a bit
2286 # lax here since this code also applies to non-libtool
2287 # libraries or programs, for which -dlopen and -dlopreopen
2288 # are pure nonsense. Diagnosing this doesn't seem very
2289 # important: the developer will quickly get complaints from
2290 # the linker.)
2291 $val !~ /^-dl(?:pre)?open$/ &&
2292 # Only get this error once.
2293 ! $flagvar)
2294 {
2295 $flagvar = 1;
2296 # FIXME: should display a stack of nested variables
2297 # as context when $var != $subvar.
2298 err_var ($var, "linker flags such as '$val' belong in "
2299 . "'${prefix}LDFLAGS'");
2300 }
2301 return ();
2302 }
2303 elsif ($val !~ /^\@.*\@$/)
2304 {
2305 # Assume we have a file of some sort, and output it into the
2306 # dependency variable. Autoconf substitutions are not output;
2307 # rarely is a new dependency substituted into e.g. foo_LDADD
2308 # -- but bad things (e.g. -lX11) are routinely substituted.
2309 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2310 # and handled specially below.
2311 return $val;
2312 }
2313 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2314 {
2315 handle_LIBOBJS ($subvar, $cond, $1);
2316 $seen_libobjs = 1;
2317 return $val;
2318 }
2319 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2320 {
2321 handle_ALLOCA ($subvar, $cond, $1);
2322 return $val;
2323 }
2324 else
2325 {
2326 return ();
2327 }
2328 });
2330 return $seen_libobjs;
2331 }
2333 # handle_LIBOBJS_or_ALLOCA ($VAR, $BASE)
2334 # --------------------------------------
2335 # Definitions common to LIBOBJS and ALLOCA.
2336 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2337 # BASE should be one base file name from AC_LIBSOURCE, or alloca.
2338 sub handle_LIBOBJS_or_ALLOCA
2339 {
2340 my ($var, $base) = @_;
2342 my $dir = '';
2344 # If LIBOBJS files must be built in another directory we have
2345 # to define LIBOBJDIR and ensure the files get cleaned.
2346 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2347 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2348 if ($config_libobj_dir
2349 && $relative_dir ne $config_libobj_dir)
2350 {
2351 if (option 'subdir-objects')
2352 {
2353 # In the top-level Makefile we do not use $(top_builddir), because
2354 # we are already there, and since the targets are built without
2355 # a $(top_builddir), it helps BSD Make to match them with
2356 # dependencies.
2357 $dir = "$config_libobj_dir/"
2358 if $config_libobj_dir ne '.';
2359 $dir = backname ($relative_dir) . "/$dir"
2360 if $relative_dir ne '.';
2361 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2362 if ($dir && !defined $clean_files{"$dir$base.\$(OBJEXT)"})
2363 {
2364 my $dirstamp = require_build_directory ($dir);
2365 $output_rules .= "$dir$base.\$(OBJEXT): $dirstamp\n";
2366 $output_rules .= "$dir$base.lo: $dirstamp\n"
2367 if ($var =~ /^LT/);
2368 }
2369 # libtool might create .$(OBJEXT) as a side-effect of using
2370 # LTLIBOBJS or LTALLOCA.
2371 $clean_files{"$dir$base.\$(OBJEXT)"} = MOSTLY_CLEAN;
2372 $clean_files{"$dir$base.lo"} = MOSTLY_CLEAN
2373 if ($var =~ /^LT/);
2374 }
2375 else
2376 {
2377 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2378 . " 'subdir-objects' is not set");
2379 }
2380 }
2382 return $dir;
2383 }
2385 sub handle_LIBOBJS
2386 {
2387 my ($var, $cond, $lt) = @_;
2388 my $myobjext = $lt ? 'lo' : 'o';
2389 $lt ||= '';
2391 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2392 if ! keys %libsources;
2394 foreach my $iter (keys %libsources)
2395 {
2396 my $dir = '';
2397 if ($iter =~ /^(.*)(\.[cly])$/)
2398 {
2399 saw_extension ($2);
2400 saw_extension ('.c');
2401 $dir = handle_LIBOBJS_or_ALLOCA ("${lt}LIBOBJS", $1);
2402 }
2404 if ($iter =~ /\.h$/)
2405 {
2406 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2407 }
2408 elsif ($iter ne 'alloca.c')
2409 {
2410 my $rewrite = $iter;
2411 $rewrite =~ s/\.c$/.P$myobjext/;
2412 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2413 $rewrite = "^" . quotemeta ($iter) . "\$";
2414 # Only require the file if it is not a built source.
2415 my $bs = var ('BUILT_SOURCES');
2416 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2417 {
2418 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2419 }
2420 }
2421 }
2422 }
2424 sub handle_ALLOCA
2425 {
2426 my ($var, $cond, $lt) = @_;
2427 my $myobjext = $lt ? 'lo' : 'o';
2428 $lt ||= '';
2429 my $dir = handle_LIBOBJS_or_ALLOCA ("${lt}ALLOCA", "alloca");
2431 $dir eq '' and $dir = './';
2432 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2433 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2434 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2435 saw_extension ('.c');
2436 }
2438 # Canonicalize the input parameter.
2439 sub canonicalize
2440 {
2441 my ($string) = @_;
2442 $string =~ tr/A-Za-z0-9_\@/_/c;
2443 return $string;
2444 }
2446 # Canonicalize a name, and check to make sure the non-canonical name
2447 # is never used. Returns canonical name. Arguments are name and a
2448 # list of suffixes to check for.
2449 sub check_canonical_spelling
2450 {
2451 my ($name, @suffixes) = @_;
2453 my $xname = canonicalize ($name);
2454 if ($xname ne $name)
2455 {
2456 foreach my $xt (@suffixes)
2457 {
2458 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2459 }
2460 }
2462 return $xname;
2463 }
2465 # Set up the compile suite.
2466 sub handle_compile ()
2467 {
2468 return if ! $must_handle_compiled_objects;
2470 # Boilerplate.
2471 my $default_includes = '';
2472 if (! option 'nostdinc')
2473 {
2474 my @incs = ('-I.', subst ('am__isrc'));
2476 my $var = var 'CONFIG_HEADER';
2477 if ($var)
2478 {
2479 foreach my $hdr (split (' ', $var->variable_value))
2480 {
2481 push @incs, '-I' . dirname ($hdr);
2482 }
2483 }
2484 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2485 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2486 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2487 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2488 # to just put @am__isrc@ right after '-I.', without a space.
2489 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2490 }
2492 my (@mostly_rms, @dist_rms);
2493 foreach my $item (sort keys %compile_clean_files)
2494 {
2495 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2496 {
2497 push (@mostly_rms, "\t-rm -f $item");
2498 }
2499 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2500 {
2501 push (@dist_rms, "\t-rm -f $item");
2502 }
2503 else
2504 {
2505 prog_error 'invalid entry in %compile_clean_files';
2506 }
2507 }
2509 my ($coms, $vars, $rules) =
2510 file_contents_internal (1, "$libdir/am/compile.am",
2511 new Automake::Location,
2512 'DEFAULT_INCLUDES' => $default_includes,
2513 'MOSTLYRMS' => join ("\n", @mostly_rms),
2514 'DISTRMS' => join ("\n", @dist_rms));
2515 $output_vars .= $vars;
2516 $output_rules .= "$coms$rules";
2517 }
2519 # Handle libtool rules.
2520 sub handle_libtool ()
2521 {
2522 return unless var ('LIBTOOL');
2524 # Libtool requires some files, but only at top level.
2525 # (Starting with Libtool 2.0 we do not have to bother. These
2526 # requirements are done with AC_REQUIRE_AUX_FILE.)
2527 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2528 if $relative_dir eq '.' && ! $libtool_new_api;
2530 my @libtool_rms;
2531 foreach my $item (sort keys %libtool_clean_directories)
2532 {
2533 my $dir = ($item eq '.') ? '' : "$item/";
2534 # .libs is for Unix, _libs for DOS.
2535 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2536 }
2538 check_user_variables 'LIBTOOLFLAGS';
2540 # Output the libtool compilation rules.
2541 $output_rules .= file_contents ('libtool',
2542 new Automake::Location,
2543 LTRMS => join ("\n", @libtool_rms));
2544 }
2546 # Check for duplicate targets
2547 sub handle_targets ()
2548 {
2549 my %seen = ();
2550 my @dups = ();
2551 @proglist = am_install_var ('progs', 'PROGRAMS',
2552 'bin', 'sbin', 'libexec', 'pkglibexec',
2553 'noinst', 'check');
2554 @liblist = am_install_var ('libs', 'LIBRARIES',
2555 'lib', 'pkglib', 'noinst', 'check');
2556 @ltliblist = am_install_var ('ltlib', 'LTLIBRARIES',
2557 'noinst', 'lib', 'pkglib', 'check');
2559 # Record duplications that may arise after canonicalization of the
2560 # base names, in order to prevent object file clashes in the presence
2561 # of target-specific *FLAGS
2562 my @targetlist = (@proglist, @liblist, @ltliblist);
2563 foreach my $pair (@targetlist)
2564 {
2565 my $base = canonicalize (basename (@$pair[1]));
2566 push (@dup_shortnames, $base) if ($seen{$base});
2567 $seen{$base} = $base;
2568 }
2569 }
2571 sub handle_programs ()
2572 {
2573 return if ! @proglist;
2574 $must_handle_compiled_objects = 1;
2576 my $seen_global_libobjs =
2577 var ('LDADD') && handle_lib_objects ('', 'LDADD');
2579 foreach my $pair (@proglist)
2580 {
2581 my ($where, $one_file) = @$pair;
2583 my $seen_libobjs = 0;
2584 my $obj = '.$(OBJEXT)';
2586 $known_programs{$one_file} = $where;
2588 # Canonicalize names and check for misspellings.
2589 my $xname = check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2590 '_SOURCES', '_OBJECTS',
2591 '_DEPENDENCIES');
2593 $where->push_context ("while processing program '$one_file'");
2594 $where->set (INTERNAL->get);
2596 my $linker = handle_source_transform ($xname, $one_file, $obj, $where,
2597 NONLIBTOOL => 1, LIBTOOL => 0);
2599 if (var ($xname . "_LDADD"))
2600 {
2601 $seen_libobjs = handle_lib_objects ($xname, $xname . '_LDADD');
2602 }
2603 else
2604 {
2605 # User didn't define prog_LDADD override. So do it.
2606 define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2608 # This does a bit too much work. But we need it to
2609 # generate _DEPENDENCIES when appropriate.
2610 if (var ('LDADD'))
2611 {
2612 $seen_libobjs = handle_lib_objects ($xname, 'LDADD');
2613 }
2614 }
2616 reject_var ($xname . '_LIBADD',
2617 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2619 set_seen ($xname . '_DEPENDENCIES');
2620 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2621 set_seen ($xname . '_LDFLAGS');
2623 # Determine program to use for link.
2624 my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xname);
2625 $vlink = verbose_flag ($vlink || 'GEN');
2627 # If the resulting program lies in a subdirectory,
2628 # ensure that the directory exists before we need it.
2629 my $dirstamp = require_build_directory_maybe ($one_file);
2631 $libtool_clean_directories{dirname ($one_file)} = 1;
2633 $output_rules .= file_contents ('program',
2634 $where,
2635 PROGRAM => $one_file,
2636 XPROGRAM => $xname,
2637 XLINK => $xlink,
2638 VERBOSE => $vlink,
2639 DIRSTAMP => $dirstamp,
2640 EXEEXT => '$(EXEEXT)');
2642 if ($seen_libobjs || $seen_global_libobjs)
2643 {
2644 if (var ($xname . '_LDADD'))
2645 {
2646 check_libobjs_sources ($xname, $xname . '_LDADD');
2647 }
2648 elsif (var ('LDADD'))
2649 {
2650 check_libobjs_sources ($xname, 'LDADD');
2651 }
2652 }
2653 }
2654 }
2657 sub handle_libraries ()
2658 {
2659 return if ! @liblist;
2660 $must_handle_compiled_objects = 1;
2662 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2663 'noinst', 'check');
2665 if (@prefix)
2666 {
2667 my $var = rvar ($prefix[0] . '_LIBRARIES');
2668 $var->requires_variables ('library used', 'RANLIB');
2669 }
2671 define_variable ('AR', 'ar', INTERNAL);
2672 define_variable ('ARFLAGS', 'cru', INTERNAL);
2673 define_verbose_tagvar ('AR');
2675 foreach my $pair (@liblist)
2676 {
2677 my ($where, $onelib) = @$pair;
2679 my $seen_libobjs = 0;
2680 # Check that the library fits the standard naming convention.
2681 my $bn = basename ($onelib);
2682 if ($bn !~ /^lib.*\.a$/)
2683 {
2684 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2685 my $suggestion = dirname ($onelib) . "/$bn";
2686 $suggestion =~ s|^\./||g;
2687 msg ('error-gnu/warn', $where,
2688 "'$onelib' is not a standard library name\n"
2689 . "did you mean '$suggestion'?")
2690 }
2692 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2694 $where->push_context ("while processing library '$onelib'");
2695 $where->set (INTERNAL->get);
2697 my $obj = '.$(OBJEXT)';
2699 # Canonicalize names and check for misspellings.
2700 my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2701 '_OBJECTS', '_DEPENDENCIES',
2702 '_AR');
2704 if (! var ($xlib . '_AR'))
2705 {
2706 define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2707 }
2709 # Generate support for conditional object inclusion in
2710 # libraries.
2711 if (var ($xlib . '_LIBADD'))
2712 {
2713 if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2714 {
2715 $seen_libobjs = 1;
2716 }
2717 }
2718 else
2719 {
2720 define_variable ($xlib . "_LIBADD", '', $where);
2721 }
2723 reject_var ($xlib . '_LDADD',
2724 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2726 # Make sure we at look at this.
2727 set_seen ($xlib . '_DEPENDENCIES');
2728 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2730 handle_source_transform ($xlib, $onelib, $obj, $where,
2731 NONLIBTOOL => 1, LIBTOOL => 0);
2733 # If the resulting library lies in a subdirectory,
2734 # make sure this directory will exist.
2735 my $dirstamp = require_build_directory_maybe ($onelib);
2736 my $verbose = verbose_flag ('AR');
2737 my $silent = silent_flag ();
2739 $output_rules .= file_contents ('library',
2740 $where,
2741 VERBOSE => $verbose,
2742 SILENT => $silent,
2743 LIBRARY => $onelib,
2744 XLIBRARY => $xlib,
2745 DIRSTAMP => $dirstamp);
2747 if ($seen_libobjs)
2748 {
2749 if (var ($xlib . '_LIBADD'))
2750 {
2751 check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2752 }
2753 }
2755 if (! $seen_ar)
2756 {
2757 msg ('extra-portability', $where,
2758 "'$onelib': linking libraries using a non-POSIX\n"
2759 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2760 }
2761 }
2762 }
2765 sub handle_ltlibraries ()
2766 {
2767 return if ! @ltliblist;
2768 $must_handle_compiled_objects = 1;
2770 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2771 'noinst', 'check');
2773 if (@prefix)
2774 {
2775 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2776 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2777 }
2779 my %instdirs = ();
2780 my %instsubdirs = ();
2781 my %instconds = ();
2782 my %liblocations = (); # Location (in Makefile.am) of each library.
2784 foreach my $key (@prefix)
2785 {
2786 # Get the installation directory of each library.
2787 my $dir = $key;
2788 my $strip_subdir = 1;
2789 if ($dir =~ /^nobase_/)
2790 {
2791 $dir =~ s/^nobase_//;
2792 $strip_subdir = 0;
2793 }
2794 my $var = rvar ($key . '_LTLIBRARIES');
2796 # We reject libraries which are installed in several places
2797 # in the same condition, because we can only specify one
2798 # '-rpath' option.
2799 $var->traverse_recursively
2800 (sub
2801 {
2802 my ($var, $val, $cond, $full_cond) = @_;
2803 my $hcond = $full_cond->human;
2804 my $where = $var->rdef ($cond)->location;
2805 my $ldir = '';
2806 $ldir = '/' . dirname ($val)
2807 if (!$strip_subdir);
2808 # A library cannot be installed in different directories
2809 # in overlapping conditions.
2810 if (exists $instconds{$val})
2811 {
2812 my ($msg, $acond) =
2813 $instconds{$val}->ambiguous_p ($val, $full_cond);
2815 if ($msg)
2816 {
2817 error ($where, $msg, partial => 1);
2818 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2819 $dirtxt = "built for '$dir'"
2820 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2821 my $dircond =
2822 $full_cond->true ? "" : " in condition $hcond";
2824 error ($where, "'$val' should be $dirtxt$dircond ...",
2825 partial => 1);
2827 my $hacond = $acond->human;
2828 my $adir = $instdirs{$val}{$acond};
2829 my $adirtxt = "installed in '$adir'";
2830 $adirtxt = "built for '$adir'"
2831 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2832 || $adir eq 'check');
2833 my $adircond = $acond->true ? "" : " in condition $hacond";
2835 my $onlyone = ($dir ne $adir) ?
2836 ("\nLibtool libraries can be built for only one "
2837 . "destination") : "";
2839 error ($liblocations{$val}{$acond},
2840 "... and should also be $adirtxt$adircond.$onlyone");
2841 return;
2842 }
2843 }
2844 else
2845 {
2846 $instconds{$val} = new Automake::DisjConditions;
2847 }
2848 $instdirs{$val}{$full_cond} = $dir;
2849 $instsubdirs{$val}{$full_cond} = $ldir;
2850 $liblocations{$val}{$full_cond} = $where;
2851 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2852 },
2853 sub
2854 {
2855 return ();
2856 },
2857 skip_ac_subst => 1);
2858 }
2860 foreach my $pair (@ltliblist)
2861 {
2862 my ($where, $onelib) = @$pair;
2864 my $seen_libobjs = 0;
2865 my $obj = '.lo';
2867 # Canonicalize names and check for misspellings.
2868 my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2869 '_SOURCES', '_OBJECTS',
2870 '_DEPENDENCIES');
2872 # Check that the library fits the standard naming convention.
2873 my $libname_rx = '^lib.*\.la';
2874 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2875 my $ldvar2 = var ('LDFLAGS');
2876 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2877 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2878 {
2879 # Relax name checking for libtool modules.
2880 $libname_rx = '\.la';
2881 }
2883 my $bn = basename ($onelib);
2884 if ($bn !~ /$libname_rx$/)
2885 {
2886 my $type = 'library';
2887 if ($libname_rx eq '\.la')
2888 {
2889 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2890 $type = 'module';
2891 }
2892 else
2893 {
2894 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2895 }
2896 my $suggestion = dirname ($onelib) . "/$bn";
2897 $suggestion =~ s|^\./||g;
2898 msg ('error-gnu/warn', $where,
2899 "'$onelib' is not a standard libtool $type name\n"
2900 . "did you mean '$suggestion'?")
2901 }
2903 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2905 $where->push_context ("while processing Libtool library '$onelib'");
2906 $where->set (INTERNAL->get);
2908 # Make sure we look at these.
2909 set_seen ($xlib . '_LDFLAGS');
2910 set_seen ($xlib . '_DEPENDENCIES');
2911 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2913 # Generate support for conditional object inclusion in
2914 # libraries.
2915 if (var ($xlib . '_LIBADD'))
2916 {
2917 if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2918 {
2919 $seen_libobjs = 1;
2920 }
2921 }
2922 else
2923 {
2924 define_variable ($xlib . "_LIBADD", '', $where);
2925 }
2927 reject_var ("${xlib}_LDADD",
2928 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2931 my $linker = handle_source_transform ($xlib, $onelib, $obj, $where,
2932 NONLIBTOOL => 0, LIBTOOL => 1);
2934 # Determine program to use for link.
2935 my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xlib);
2936 $vlink = verbose_flag ($vlink || 'GEN');
2938 my $rpathvar = "am_${xlib}_rpath";
2939 my $rpath = "\$($rpathvar)";
2940 foreach my $rcond ($instconds{$onelib}->conds)
2941 {
2942 my $val;
2943 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2944 || $instdirs{$onelib}{$rcond} eq 'noinst'
2945 || $instdirs{$onelib}{$rcond} eq 'check')
2946 {
2947 # It's an EXTRA_ library, so we can't specify -rpath,
2948 # because we don't know where the library will end up.
2949 # The user probably knows, but generally speaking automake
2950 # doesn't -- and in fact configure could decide
2951 # dynamically between two different locations.
2952 $val = '';
2953 }
2954 else
2955 {
2956 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2957 $val .= $instsubdirs{$onelib}{$rcond}
2958 if defined $instsubdirs{$onelib}{$rcond};
2959 }
2960 if ($rcond->true)
2961 {
2962 # If $rcond is true there is only one condition and
2963 # there is no point defining an helper variable.
2964 $rpath = $val;
2965 }
2966 else
2967 {
2968 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2969 }
2970 }
2972 # If the resulting library lies in a subdirectory,
2973 # make sure this directory will exist.
2974 my $dirstamp = require_build_directory_maybe ($onelib);
2976 # Remember to cleanup .libs/ in this directory.
2977 my $dirname = dirname $onelib;
2978 $libtool_clean_directories{$dirname} = 1;
2980 $output_rules .= file_contents ('ltlibrary',
2981 $where,
2982 LTLIBRARY => $onelib,
2983 XLTLIBRARY => $xlib,
2984 RPATH => $rpath,
2985 XLINK => $xlink,
2986 VERBOSE => $vlink,
2987 DIRSTAMP => $dirstamp);
2988 if ($seen_libobjs)
2989 {
2990 if (var ($xlib . '_LIBADD'))
2991 {
2992 check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2993 }
2994 }
2996 if (! $seen_ar)
2997 {
2998 msg ('extra-portability', $where,
2999 "'$onelib': linking libtool libraries using a non-POSIX\n"
3000 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
3001 }
3002 }
3003 }
3005 # See if any _SOURCES variable were misspelled.
3006 sub check_typos ()
3007 {
3008 # It is ok if the user sets this particular variable.
3009 set_seen 'AM_LDFLAGS';
3011 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3012 {
3013 foreach my $var (variables $primary)
3014 {
3015 my $varname = $var->name;
3016 # A configure variable is always legitimate.
3017 next if exists $configure_vars{$varname};
3019 for my $cond ($var->conditions->conds)
3020 {
3021 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3022 msg_var ('syntax', $var, "variable '$varname' is defined but no"
3023 . " program or\nlibrary has '$1' as canonical name"
3024 . " (possible typo)")
3025 unless $var->rdef ($cond)->seen;
3026 }
3027 }
3028 }
3029 }
3032 sub handle_scripts ()
3033 {
3034 # NOTE we no longer automatically clean SCRIPTS, because it is
3035 # useful to sometimes distribute scripts verbatim. This happens
3036 # e.g. in Automake itself.
3037 am_install_var ('-candist', 'scripts', 'SCRIPTS',
3038 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
3039 'noinst', 'check');
3040 }
3043 ## ------------------------ ##
3044 ## Handling Texinfo files. ##
3045 ## ------------------------ ##
3047 # ($OUTFILE, $VFILE)
3048 # scan_texinfo_file ($FILENAME)
3049 # -----------------------------
3050 # $OUTFILE - name of the info file produced by $FILENAME.
3051 # $VFILE - name of the version.texi file used (undef if none).
3052 sub scan_texinfo_file
3053 {
3054 my ($filename) = @_;
3056 my $texi = new Automake::XFile "< $filename";
3057 verb "reading $filename";
3059 my ($outfile, $vfile);
3060 while ($_ = $texi->getline)
3061 {
3062 if (/^\@setfilename +(\S+)/)
3063 {
3064 # Honor only the first @setfilename. (It's possible to have
3065 # more occurrences later if the manual shows examples of how
3066 # to use @setfilename...)
3067 next if $outfile;
3069 $outfile = $1;
3070 if (index ($outfile, '.') < 0)
3071 {
3072 msg 'obsolete', "$filename:$.",
3073 "use of suffix-less info files is discouraged"
3074 }
3075 elsif ($outfile !~ /\.info$/)
3076 {
3077 error ("$filename:$.",
3078 "output '$outfile' has unrecognized extension");
3079 return;
3080 }
3081 }
3082 # A "version.texi" file is actually any file whose name matches
3083 # "vers*.texi".
3084 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3085 {
3086 $vfile = $1;
3087 }
3088 }
3090 if (! $outfile)
3091 {
3092 err_am "'$filename' missing \@setfilename";
3093 return;
3094 }
3096 return ($outfile, $vfile);
3097 }
3100 # ($DIRSTAMP, @CLEAN_FILES)
3101 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3102 # ------------------------------------------------------------------
3103 # SOURCE - the source Texinfo file
3104 # DEST - the destination Info file
3105 # INSRC - whether DEST should be built in the source tree
3106 # DEPENDENCIES - known dependencies
3107 sub output_texinfo_build_rules
3108 {
3109 my ($source, $dest, $insrc, @deps) = @_;
3111 # Split 'a.texi' into 'a' and '.texi'.
3112 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3113 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3115 $ssfx ||= "";
3116 $dsfx ||= "";
3118 # We can output two kinds of rules: the "generic" rules use Make
3119 # suffix rules and are appropriate when $source and $dest do not lie
3120 # in a sub-directory; the "specific" rules are needed in the other
3121 # case.
3122 #
3123 # The former are output only once (this is not really apparent here,
3124 # but just remember that some logic deeper in Automake will not
3125 # output the same rule twice); while the later need to be output for
3126 # each Texinfo source.
3127 my $generic;
3128 my $makeinfoflags;
3129 my $sdir = dirname $source;
3130 if ($sdir eq '.' && dirname ($dest) eq '.')
3131 {
3132 $generic = 1;
3133 $makeinfoflags = '-I $(srcdir)';
3134 }
3135 else
3136 {
3137 $generic = 0;
3138 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3139 }
3141 # A directory can contain two kinds of info files: some built in the
3142 # source tree, and some built in the build tree. The rules are
3143 # different in each case. However we cannot output two different
3144 # set of generic rules. Because in-source builds are more usual, we
3145 # use generic rules in this case and fall back to "specific" rules
3146 # for build-dir builds. (It should not be a problem to invert this
3147 # if needed.)
3148 $generic = 0 unless $insrc;
3150 # We cannot use a suffix rule to build info files with an empty
3151 # extension. Otherwise we would output a single suffix inference
3152 # rule, with separate dependencies, as in
3153 #
3154 # .texi:
3155 # $(MAKEINFO) ...
3156 # foo.info: foo.texi
3157 #
3158 # which confuse Solaris make. (See the Autoconf manual for
3159 # details.) Therefore we use a specific rule in this case. This
3160 # applies to info files only (dvi and pdf files always have an
3161 # extension).
3162 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3164 # If the resulting file lies in a subdirectory,
3165 # make sure this directory will exist.
3166 my $dirstamp = require_build_directory_maybe ($dest);
3168 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3170 $output_rules .= file_contents ('texibuild',
3171 new Automake::Location,
3172 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3173 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3174 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3175 DEPS => "@deps",
3176 DEST_PREFIX => $dpfx,
3177 DEST_INFO_PREFIX => $dipfx,
3178 DEST_SUFFIX => $dsfx,
3179 DIRSTAMP => $dirstamp,
3180 GENERIC => $generic,
3181 GENERIC_INFO => $generic_info,
3182 INSRC => $insrc,
3183 MAKEINFOFLAGS => $makeinfoflags,
3184 SILENT => silent_flag(),
3185 SOURCE => ($generic
3186 ? '$<' : $source),
3187 SOURCE_INFO => ($generic_info
3188 ? '$<' : $source),
3189 SOURCE_REAL => $source,
3190 SOURCE_SUFFIX => $ssfx,
3191 TEXIQUIET => verbose_flag('texinfo'),
3192 TEXIDEVNULL => verbose_flag('texidevnull'),
3193 );
3194 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3195 }
3198 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3199 # handle_texinfo_helper ($info_texinfos)
3200 # --------------------------------------
3201 # Handle all Texinfo source; helper for 'handle_texinfo'.
3202 sub handle_texinfo_helper
3203 {
3204 my ($info_texinfos) = @_;
3205 my (@infobase, @info_deps_list, @texi_deps);
3206 my %versions;
3207 my $done = 0;
3208 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3210 # Build a regex matching user-cleaned files.
3211 my $d = var 'DISTCLEANFILES';
3212 my $c = var 'CLEANFILES';
3213 my @f = ();
3214 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3215 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3216 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3217 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3219 foreach my $texi
3220 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3221 {
3222 my $infobase = $texi;
3223 if ($infobase =~ s/\.texi$//)
3224 {
3225 1; # Nothing more to do.
3226 }
3227 elsif ($infobase =~ s/\.(txi|texinfo)$//)
3228 {
3229 msg_var 'obsolete', $info_texinfos,
3230 "suffix '.$1' for Texinfo files is discouraged;" .
3231 " use '.texi' instead";
3232 }
3233 else
3234 {
3235 # FIXME: report line number.
3236 err_am "texinfo file '$texi' has unrecognized extension";
3237 next;
3238 }
3240 push @infobase, $infobase;
3242 # If 'version.texi' is referenced by input file, then include
3243 # automatic versioning capability.
3244 my ($out_file, $vtexi) =
3245 scan_texinfo_file ("$relative_dir/$texi")
3246 or next;
3247 # Directory of auxiliary files and build by-products used by texi2dvi
3248 # and texi2pdf.
3249 push @mostly_cleans, "$infobase.t2d";
3250 push @mostly_cleans, "$infobase.t2p";
3252 # If the Texinfo source is in a subdirectory, create the
3253 # resulting info in this subdirectory. If it is in the current
3254 # directory, try hard to not prefix "./" because it breaks the
3255 # generic rules.
3256 my $outdir = dirname ($texi) . '/';
3257 $outdir = "" if $outdir eq './';
3258 $out_file = $outdir . $out_file;
3260 # Until Automake 1.6.3, .info files were built in the
3261 # source tree. This was an obstacle to the support of
3262 # non-distributed .info files, and non-distributed .texi
3263 # files.
3264 #
3265 # * Non-distributed .texi files is important in some packages
3266 # where .texi files are built at make time, probably using
3267 # other binaries built in the package itself, maybe using
3268 # tools or information found on the build host. Because
3269 # these files are not distributed they are always rebuilt
3270 # at make time; they should therefore not lie in the source
3271 # directory. One plan was to support this using
3272 # nodist_info_TEXINFOS or something similar. (Doing this
3273 # requires some sanity checks. For instance Automake should
3274 # not allow:
3275 # dist_info_TEXINFOS = foo.texi
3276 # nodist_foo_TEXINFOS = included.texi
3277 # because a distributed file should never depend on a
3278 # non-distributed file.)
3279 #
3280 # * If .texi files are not distributed, then .info files should
3281 # not be distributed either. There are also cases where one
3282 # wants to distribute .texi files, but does not want to
3283 # distribute the .info files. For instance the Texinfo package
3284 # distributes the tool used to build these files; it would
3285 # be a waste of space to distribute them. It's not clear
3286 # which syntax we should use to indicate that .info files should
3287 # not be distributed. Akim Demaille suggested that eventually
3288 # we switch to a new syntax:
3289 # | Maybe we should take some inspiration from what's already
3290 # | done in the rest of Automake. Maybe there is too much
3291 # | syntactic sugar here, and you want
3292 # | nodist_INFO = bar.info
3293 # | dist_bar_info_SOURCES = bar.texi
3294 # | bar_texi_DEPENDENCIES = foo.texi
3295 # | with a bit of magic to have bar.info represent the whole
3296 # | bar*info set. That's a lot more verbose that the current
3297 # | situation, but it is # not new, hence the user has less
3298 # | to learn.
3299 # |
3300 # | But there is still too much room for meaningless specs:
3301 # | nodist_INFO = bar.info
3302 # | dist_bar_info_SOURCES = bar.texi
3303 # | dist_PS = bar.ps something-written-by-hand.ps
3304 # | nodist_bar_ps_SOURCES = bar.texi
3305 # | bar_texi_DEPENDENCIES = foo.texi
3306 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3307 #
3308 # Back to the point, it should be clear that in order to support
3309 # non-distributed .info files, we need to build them in the
3310 # build tree, not in the source tree (non-distributed .texi
3311 # files are less of a problem, because we do not output build
3312 # rules for them). In Automake 1.7 .info build rules have been
3313 # largely cleaned up so that .info files get always build in the
3314 # build tree, even when distributed. The idea was that
3315 # (1) if during a VPATH build the .info file was found to be
3316 # absent or out-of-date (in the source tree or in the
3317 # build tree), Make would rebuild it in the build tree.
3318 # If an up-to-date source-tree of the .info file existed,
3319 # make would not rebuild it in the build tree.
3320 # (2) having two copies of .info files, one in the source tree
3321 # and one (newer) in the build tree is not a problem
3322 # because 'make dist' always pick files in the build tree
3323 # first.
3324 # However it turned out the be a bad idea for several reasons:
3325 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3326 # like GNU Make on point (1) above. These implementations
3327 # of Make would always rebuild .info files in the build
3328 # tree, even if such files were up to date in the source
3329 # tree. Consequently, it was impossible to perform a VPATH
3330 # build of a package containing Texinfo files using these
3331 # Make implementations.
3332 # (Refer to the Autoconf Manual, section "Limitation of
3333 # Make", paragraph "VPATH", item "target lookup", for
3334 # an account of the differences between these
3335 # implementations.)
3336 # * The GNU Coding Standards require these files to be built
3337 # in the source-tree (when they are distributed, that is).
3338 # * Keeping a fresher copy of distributed files in the
3339 # build tree can be annoying during development because
3340 # - if the files is kept under CVS, you really want it
3341 # to be updated in the source tree
3342 # - it is confusing that 'make distclean' does not erase
3343 # all files in the build tree.
3344 #
3345 # Consequently, starting with Automake 1.8, .info files are
3346 # built in the source tree again. Because we still plan to
3347 # support non-distributed .info files at some point, we
3348 # have a single variable ($INSRC) that controls whether
3349 # the current .info file must be built in the source tree
3350 # or in the build tree. Actually this variable is switched
3351 # off in two cases:
3352 # (1) For '.info' files that appear to be cleaned; this is for
3353 # backward compatibility with package such as Texinfo,
3354 # which do things like
3355 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3356 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3357 # # Do not create info files for distribution.
3358 # dist-info:
3359 # in order not to distribute .info files.
3360 # (2) When the undocumented option 'info-in-builddir' is given.
3361 # This is done to allow the developers of GCC, GDB, GNU
3362 # binutils and the GNU bfd library to force the '.info' files
3363 # to be generated in the builddir rather than the srcdir, as
3364 # was once done when the (now removed) 'cygnus' option was
3365 # given. See automake bug#11034 for more discussion.
3366 my $insrc = 1;
3367 my $soutdir = '$(srcdir)/' . $outdir;
3369 if (option 'info-in-builddir')
3370 {
3371 $insrc = 0;
3372 }
3373 elsif ($out_file =~ $user_cleaned_files)
3374 {
3375 $insrc = 0;
3376 msg 'obsolete', "$am_file.am", <<EOF;
3377 Oops!
3378 It appears this file (or files included by it) are triggering
3379 an undocumented, soon-to-be-removed automake hack.
3380 Future automake versions will no longer place in the builddir
3381 (rather than in the srcdir) the generated '.info' files that
3382 appear to be cleaned, by e.g. being listed in CLEANFILES or
3383 DISTCLEANFILES.
3384 If you want your '.info' files to be placed in the builddir
3385 rather than in the srcdir, you have to use the shiny new
3386 'info-in-builddir' automake option.
3387 EOF
3388 }
3390 $outdir = $soutdir if $insrc;
3392 # If user specified file_TEXINFOS, then use that as explicit
3393 # dependency list.
3394 @texi_deps = ();
3395 push (@texi_deps, "${soutdir}${vtexi}") if $vtexi;
3397 my $canonical = canonicalize ($infobase);
3398 if (var ($canonical . "_TEXINFOS"))
3399 {
3400 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3401 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3402 }
3404 my ($dirstamp, @cfiles) =
3405 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3406 push (@texi_cleans, @cfiles);
3408 push (@info_deps_list, $out_file);
3410 # If a vers*.texi file is needed, emit the rule.
3411 if ($vtexi)
3412 {
3413 err_am ("'$vtexi', included in '$texi', "
3414 . "also included in '$versions{$vtexi}'")
3415 if defined $versions{$vtexi};
3416 $versions{$vtexi} = $texi;
3418 # We number the stamp-vti files. This is doable since the
3419 # actual names don't matter much. We only number starting
3420 # with the second one, so that the common case looks nice.
3421 my $vti = ($done ? $done : 'vti');
3422 ++$done;
3424 # This is ugly, but it is our historical practice.
3425 if ($config_aux_dir_set_in_configure_ac)
3426 {
3427 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3428 'mdate-sh');
3429 }
3430 else
3431 {
3432 require_file_with_macro (TRUE, 'info_TEXINFOS',
3433 FOREIGN, 'mdate-sh');
3434 }
3436 my $conf_dir;
3437 if ($config_aux_dir_set_in_configure_ac)
3438 {
3439 $conf_dir = "$am_config_aux_dir/";
3440 }
3441 else
3442 {
3443 $conf_dir = '$(srcdir)/';
3444 }
3445 $output_rules .= file_contents ('texi-vers',
3446 new Automake::Location,
3447 TEXI => $texi,
3448 VTI => $vti,
3449 STAMPVTI => "${soutdir}stamp-$vti",
3450 VTEXI => "$soutdir$vtexi",
3451 MDDIR => $conf_dir,
3452 DIRSTAMP => $dirstamp);
3453 }
3454 }
3456 # Handle location of texinfo.tex.
3457 my $need_texi_file = 0;
3458 my $texinfodir;
3459 if (var ('TEXINFO_TEX'))
3460 {
3461 # The user defined TEXINFO_TEX so assume he knows what he is
3462 # doing.
3463 $texinfodir = ('$(srcdir)/'
3464 . dirname (variable_value ('TEXINFO_TEX')));
3465 }
3466 elsif ($config_aux_dir_set_in_configure_ac)
3467 {
3468 $texinfodir = $am_config_aux_dir;
3469 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3470 $need_texi_file = 2; # so that we require_conf_file later
3471 }
3472 else
3473 {
3474 $texinfodir = '$(srcdir)';
3475 $need_texi_file = 1;
3476 }
3477 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3479 push (@dist_targets, 'dist-info');
3481 if (! option 'no-installinfo')
3482 {
3483 # Make sure documentation is made and installed first. Use
3484 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3485 # get run twice during "make all".
3486 unshift (@all, '$(INFO_DEPS)');
3487 }
3489 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3490 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3491 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3492 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3494 # This next isn't strictly needed now -- the places that look here
3495 # could easily be changed to look in info_TEXINFOS. But this is
3496 # probably better, in case noinst_TEXINFOS is ever supported.
3497 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3499 # Do some error checking. Note that this file is not required
3500 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3501 # up above.
3502 if ($need_texi_file && ! option 'no-texinfo.tex')
3503 {
3504 if ($need_texi_file > 1)
3505 {
3506 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3507 'texinfo.tex');
3508 }
3509 else
3510 {
3511 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3512 'texinfo.tex');
3513 }
3514 }
3516 return (makefile_wrap ("", "\t ", @mostly_cleans),
3517 makefile_wrap ("", "\t ", @texi_cleans),
3518 makefile_wrap ("", "\t ", @maint_cleans));
3519 }
3522 sub handle_texinfo ()
3523 {
3524 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3525 # FIXME: I think this is an obsolete future feature name.
3526 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3528 my $info_texinfos = var ('info_TEXINFOS');
3529 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3530 if ($info_texinfos)
3531 {
3532 define_verbose_texinfo;
3533 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3534 chomp $mostlyclean;
3535 chomp $clean;
3536 chomp $maintclean;
3537 }
3539 $output_rules .= file_contents ('texinfos',
3540 new Automake::Location,
3541 AM_V_DVIPS => verbose_flag('DVIPS'),
3542 MOSTLYCLEAN => $mostlyclean,
3543 TEXICLEAN => $clean,
3544 MAINTCLEAN => $maintclean,
3545 'LOCAL-TEXIS' => !!$info_texinfos,
3546 TEXIQUIET => verbose_flag('texinfo'));
3547 }
3550 sub handle_man_pages ()
3551 {
3552 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3554 # Find all the sections in use. We do this by first looking for
3555 # "standard" sections, and then looking for any additional
3556 # sections used in man_MANS.
3557 my (%sections, %notrans_sections, %trans_sections,
3558 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3559 # We handle nodist_ for uniformity. man pages aren't distributed
3560 # by default so it isn't actually very important.
3561 foreach my $npfx ('', 'notrans_')
3562 {
3563 foreach my $pfx ('', 'dist_', 'nodist_')
3564 {
3565 # Add more sections as needed.
3566 foreach my $section ('0'..'9', 'n', 'l')
3567 {
3568 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3569 if (var ($varname))
3570 {
3571 $sections{$section} = 1;
3572 $varname = '$(' . $varname . ')';
3573 if ($npfx eq 'notrans_')
3574 {
3575 $notrans_sections{$section} = 1;
3576 $notrans_sect_vars{$varname} = 1;
3577 }
3578 else
3579 {
3580 $trans_sections{$section} = 1;
3581 $trans_sect_vars{$varname} = 1;
3582 }
3584 push_dist_common ($varname)
3585 if $pfx eq 'dist_';
3586 }
3587 }
3589 my $varname = $npfx . $pfx . 'man_MANS';
3590 my $var = var ($varname);
3591 if ($var)
3592 {
3593 foreach ($var->value_as_list_recursive)
3594 {
3595 # A page like 'foo.1c' goes into man1dir.
3596 if (/\.([0-9a-z])([a-z]*)$/)
3597 {
3598 $sections{$1} = 1;
3599 if ($npfx eq 'notrans_')
3600 {
3601 $notrans_sections{$1} = 1;
3602 }
3603 else
3604 {
3605 $trans_sections{$1} = 1;
3606 }
3607 }
3608 }
3610 $varname = '$(' . $varname . ')';
3611 if ($npfx eq 'notrans_')
3612 {
3613 $notrans_vars{$varname} = 1;
3614 }
3615 else
3616 {
3617 $trans_vars{$varname} = 1;
3618 }
3619 push_dist_common ($varname)
3620 if $pfx eq 'dist_';
3621 }
3622 }
3623 }
3625 return unless %sections;
3627 my @unsorted_deps;
3629 # Build section independent variables.
3630 my $have_notrans = %notrans_vars;
3631 my @notrans_list = sort keys %notrans_vars;
3632 my $have_trans = %trans_vars;
3633 my @trans_list = sort keys %trans_vars;
3635 # Now for each section, generate an install and uninstall rule.
3636 # Sort sections so output is deterministic.
3637 foreach my $section (sort keys %sections)
3638 {
3639 # Build section dependent variables.
3640 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3641 my $trans_mans = $have_trans || exists $trans_sections{$section};
3642 my (%notrans_this_sect, %trans_this_sect);
3643 my $expr = 'man' . $section . '_MANS';
3644 foreach my $varname (keys %notrans_sect_vars)
3645 {
3646 if ($varname =~ /$expr/)
3647 {
3648 $notrans_this_sect{$varname} = 1;
3649 }
3650 }
3651 foreach my $varname (keys %trans_sect_vars)
3652 {
3653 if ($varname =~ /$expr/)
3654 {
3655 $trans_this_sect{$varname} = 1;
3656 }
3657 }
3658 my @notrans_sect_list = sort keys %notrans_this_sect;
3659 my @trans_sect_list = sort keys %trans_this_sect;
3660 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3661 keys %notrans_this_sect, keys %trans_this_sect);
3662 my @deps = sort @unsorted_deps;
3663 $output_rules .= file_contents ('mans',
3664 new Automake::Location,
3665 SECTION => $section,
3666 DEPS => "@deps",
3667 NOTRANS_MANS => $notrans_mans,
3668 NOTRANS_SECT_LIST => "@notrans_sect_list",
3669 HAVE_NOTRANS => $have_notrans,
3670 NOTRANS_LIST => "@notrans_list",
3671 TRANS_MANS => $trans_mans,
3672 TRANS_SECT_LIST => "@trans_sect_list",
3673 HAVE_TRANS => $have_trans,
3674 TRANS_LIST => "@trans_list");
3675 }
3677 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3678 keys %notrans_sect_vars, keys %trans_sect_vars);
3679 my @mans = sort @unsorted_deps;
3680 $output_vars .= file_contents ('mans-vars',
3681 new Automake::Location,
3682 MANS => "@mans");
3684 push (@all, '$(MANS)')
3685 unless option 'no-installman';
3686 }
3689 sub handle_data ()
3690 {
3691 am_install_var ('-noextra', '-candist', 'data', 'DATA',
3692 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3693 'ps', 'sysconf', 'sharedstate', 'localstate',
3694 'pkgdata', 'lisp', 'noinst', 'check');
3695 }
3698 sub handle_tags ()
3699 {
3700 my @config;
3701 foreach my $spec (@config_headers)
3702 {
3703 my ($out, @ins) = split_config_file_spec ($spec);
3704 foreach my $in (@ins)
3705 {
3706 # If the config header source is in this directory,
3707 # require it.
3708 push @config, basename ($in)
3709 if $relative_dir eq dirname ($in);
3710 }
3711 }
3713 define_variable ('am__tagged_files',
3714 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3715 . "@config", INTERNAL);
3717 if (rvar('am__tagged_files')->value_as_list_recursive
3718 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3719 {
3720 $output_rules .= file_contents ('tags', new Automake::Location);
3721 set_seen 'TAGS_DEPENDENCIES';
3722 }
3723 else
3724 {
3725 reject_var ('TAGS_DEPENDENCIES',
3726 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3727 . " without\nsources or 'ETAGS_ARGS'");
3728 # Every Makefile must define some sort of TAGS rule.
3729 # Otherwise, it would be possible for a top-level "make TAGS"
3730 # to fail because some subdirectory failed. Ditto ctags and
3731 # cscope.
3732 $output_rules .=
3733 "tags TAGS:\n\n" .
3734 "ctags CTAGS:\n\n" .
3735 "cscope cscopelist:\n\n";
3736 }
3737 }
3740 # user_phony_rule ($NAME)
3741 # -----------------------
3742 # Return false if rule $NAME does not exist. Otherwise,
3743 # declare it as phony, complete its definition (in case it is
3744 # conditional), and return its Automake::Rule instance.
3745 sub user_phony_rule
3746 {
3747 my ($name) = @_;
3748 my $rule = rule $name;
3749 if ($rule)
3750 {
3751 depend ('.PHONY', $name);
3752 # Define $NAME in all condition where it is not already defined,
3753 # so that it is always OK to depend on $NAME.
3754 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3755 {
3756 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3757 $c, INTERNAL);
3758 $output_rules .= $c->subst_string . "$name:\n";
3759 }
3760 }
3761 return $rule;
3762 }
3765 # Handle 'dist' target.
3766 sub handle_dist ()
3767 {
3768 # Substitutions for distdir.am
3769 my %transform;
3771 # Define DIST_SUBDIRS. This must always be done, regardless of the
3772 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3773 my $subdirs = var ('SUBDIRS');
3774 if ($subdirs)
3775 {
3776 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3777 # to all possible directories, and use it. If DIST_SUBDIRS is
3778 # defined, just use it.
3780 # Note that we check DIST_SUBDIRS first on purpose, so that
3781 # we don't call has_conditional_contents for now reason.
3782 # (In the past one project used so many conditional subdirectories
3783 # that calling has_conditional_contents on SUBDIRS caused
3784 # automake to grow to 150Mb -- this should not happen with
3785 # the current implementation of has_conditional_contents,
3786 # but it's more efficient to avoid the call anyway.)
3787 if (var ('DIST_SUBDIRS'))
3788 {
3789 }
3790 elsif ($subdirs->has_conditional_contents)
3791 {
3792 define_pretty_variable
3793 ('DIST_SUBDIRS', TRUE, INTERNAL,
3794 uniq ($subdirs->value_as_list_recursive));
3795 }
3796 else
3797 {
3798 # We always define this because that is what 'distclean'
3799 # wants.
3800 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3801 '$(SUBDIRS)');
3802 }
3803 }
3805 # The remaining definitions are only required when a dist target is used.
3806 return if option 'no-dist';
3808 # At least one of the archive formats must be enabled.
3809 if ($relative_dir eq '.')
3810 {
3811 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3812 $archive_defined ||=
3813 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
3814 error (option 'no-dist-gzip',
3815 "no-dist-gzip specified but no dist-* specified,\n"
3816 . "at least one archive format must be enabled")
3817 unless $archive_defined;
3818 }
3820 # Look for common files that should be included in distribution.
3821 # If the aux dir is set, and it does not have a Makefile.am, then
3822 # we check for these files there as well.
3823 my $check_aux = 0;
3824 if ($relative_dir eq '.'
3825 && $config_aux_dir_set_in_configure_ac)
3826 {
3827 if (! is_make_dir ($config_aux_dir))
3828 {
3829 $check_aux = 1;
3830 }
3831 }
3832 foreach my $cfile (@common_files)
3833 {
3834 if (dir_has_case_matching_file ($relative_dir, $cfile)
3835 # The file might be absent, but if it can be built it's ok.
3836 || rule $cfile)
3837 {
3838 push_dist_common ($cfile);
3839 }
3841 # Don't use 'elsif' here because a file might meaningfully
3842 # appear in both directories.
3843 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3844 {
3845 push_dist_common ("$config_aux_dir/$cfile")
3846 }
3847 }
3849 # We might copy elements from @configure_dist_common to
3850 # @dist_common if we think we need to. If the file appears in our
3851 # directory, we would have discovered it already, so we don't
3852 # check that. But if the file is in a subdir without a Makefile,
3853 # we want to distribute it here if we are doing '.'. Ugly!
3854 # Also, in some corner cases, it's possible that the following code
3855 # will cause the same file to appear in the $(DIST_COMMON) variables
3856 # of two distinct Makefiles; but this is not a problem, since the
3857 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3858 # file being distributed multiple times.
3859 # See also automake bug#9651.
3860 if ($relative_dir eq '.')
3861 {
3862 foreach my $file (@configure_dist_common)
3863 {
3864 my $dir = dirname ($file);
3865 push_dist_common ($file)
3866 if ($dir eq '.' || ! is_make_dir ($dir));
3867 }
3868 @configure_dist_common = ();
3869 }
3871 # $(am__DIST_COMMON): files to be distributed automatically. Will be
3872 # appended to $(DIST_COMMON) in the generated Makefile.
3873 # Use 'sort' so that the expansion of $(DIST_COMMON) in the generated
3874 # Makefile is deterministic, in face of m4 and/or perl randomizations
3875 # (see automake bug#17908).
3876 define_pretty_variable ('am__DIST_COMMON', TRUE, INTERNAL,
3877 uniq (sort @dist_common));
3879 # Now that we've processed @dist_common, disallow further attempts
3880 # to modify it.
3881 $handle_dist_run = 1;
3883 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3884 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3886 # If the target 'dist-hook' exists, make sure it is run. This
3887 # allows users to do random weird things to the distribution
3888 # before it is packaged up.
3889 push (@dist_targets, 'dist-hook')
3890 if user_phony_rule 'dist-hook';
3891 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3893 my $flm = option ('filename-length-max');
3894 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3896 $output_rules .= file_contents ('distdir',
3897 new Automake::Location,
3898 %transform,
3899 FILENAME_FILTER => $filename_filter);
3900 }
3903 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3904 # -------------------------------------------------------
3905 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3906 # name. Use $WHERE as a location in the diagnostic, if any.
3907 sub check_directory
3908 {
3909 my ($dir, $where, $reldir) = @_;
3910 $reldir = '.' unless defined $reldir;
3912 error $where, "required directory $reldir/$dir does not exist"
3913 unless -d "$reldir/$dir";
3915 # If an 'obj/' directory exists, BSD make will enter it before
3916 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3917 # will not be read.
3918 #
3919 # % cat Makefile
3920 # all:
3921 # echo Hello
3922 # % cat obj/Makefile
3923 # all:
3924 # echo World
3925 # % make # GNU make
3926 # echo Hello
3927 # Hello
3928 # % pmake # BSD make
3929 # echo World
3930 # World
3931 msg ('portability', $where,
3932 "naming a subdirectory 'obj' causes troubles with BSD make")
3933 if $dir eq 'obj';
3935 # 'aux' is probably the most important of the following forbidden name,
3936 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3937 msg ('portability', $where,
3938 "name '$dir' is reserved on W32 and DOS platforms")
3939 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3940 }
3942 # check_directories_in_var ($VARIABLE)
3943 # ------------------------------------
3944 # Recursively check all items in variables $VARIABLE as directories
3945 sub check_directories_in_var
3946 {
3947 my ($var) = @_;
3948 $var->traverse_recursively
3949 (sub
3950 {
3951 my ($var, $val, $cond, $full_cond) = @_;
3952 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3953 return ();
3954 },
3955 undef,
3956 skip_ac_subst => 1);
3957 }
3960 sub handle_subdirs ()
3961 {
3962 my $subdirs = var ('SUBDIRS');
3963 return
3964 unless $subdirs;
3966 check_directories_in_var $subdirs;
3968 my $dsubdirs = var ('DIST_SUBDIRS');
3969 check_directories_in_var $dsubdirs
3970 if $dsubdirs;
3972 $output_rules .= file_contents ('subdirs', new Automake::Location);
3973 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3974 }
3977 # ($REGEN, @DEPENDENCIES)
3978 # scan_aclocal_m4
3979 # ---------------
3980 # If aclocal.m4 creation is automated, return the list of its dependencies.
3981 sub scan_aclocal_m4 ()
3982 {
3983 my $regen_aclocal = 0;
3985 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3986 set_seen 'CONFIGURE_DEPENDENCIES';
3988 if (-f 'aclocal.m4')
3989 {
3990 define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3992 my $aclocal = new Automake::XFile "< aclocal.m4";
3993 my $line = $aclocal->getline;
3994 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3995 }
3997 my @ac_deps = ();
3999 if (set_seen ('ACLOCAL_M4_SOURCES'))
4000 {
4001 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4002 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4003 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
4004 . "It should be safe to simply remove it");
4005 }
4007 # Note that it might be possible that aclocal.m4 doesn't exist but
4008 # should be auto-generated. This case probably isn't very
4009 # important.
4011 return ($regen_aclocal, @ac_deps);
4012 }
4015 # Helper function for 'substitute_ac_subst_variables'.
4016 sub substitute_ac_subst_variables_worker
4017 {
4018 my ($token) = @_;
4019 return "\@$token\@" if var $token;
4020 return "\${$token\}";
4021 }
4023 # substitute_ac_subst_variables ($TEXT)
4024 # -------------------------------------
4025 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4026 # variable.
4027 sub substitute_ac_subst_variables
4028 {
4029 my ($text) = @_;
4030 $text =~ s/\$[{]([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
4031 return $text;
4032 }
4034 # @DEPENDENCIES
4035 # prepend_srcdir (@INPUTS)
4036 # ------------------------
4037 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4038 # if an input file has a directory part the same as the current
4039 # directory, then the directory part is simply replaced by $(srcdir).
4040 # But if the directory part is different, then $(top_srcdir) is
4041 # prepended.
4042 sub prepend_srcdir
4043 {
4044 my (@inputs) = @_;
4045 my @newinputs;
4047 foreach my $single (@inputs)
4048 {
4049 if (dirname ($single) eq $relative_dir)
4050 {
4051 push (@newinputs, '$(srcdir)/' . basename ($single));
4052 }
4053 else
4054 {
4055 push (@newinputs, '$(top_srcdir)/' . $single);
4056 }
4057 }
4058 return @newinputs;
4059 }
4061 # @DEPENDENCIES
4062 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4063 # ---------------------------------------------------
4064 # Compute a list of dependencies appropriate for the rebuild
4065 # rule of
4066 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4067 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4068 sub rewrite_inputs_into_dependencies
4069 {
4070 my ($file, @inputs) = @_;
4071 my @res = ();
4073 for my $i (@inputs)
4074 {
4075 # We cannot create dependencies on shell variables.
4076 next if (substitute_ac_subst_variables $i) =~ /\$/;
4078 if (exists $ac_config_files_location{$i} && $i ne $file)
4079 {
4080 my $di = dirname $i;
4081 if ($di eq $relative_dir)
4082 {
4083 $i = basename $i;
4084 }
4085 # In the top-level Makefile we do not use $(top_builddir), because
4086 # we are already there, and since the targets are built without
4087 # a $(top_builddir), it helps BSD Make to match them with
4088 # dependencies.
4089 elsif ($relative_dir ne '.')
4090 {
4091 $i = '$(top_builddir)/' . $i;
4092 }
4093 }
4094 else
4095 {
4096 msg ('error', $ac_config_files_location{$file},
4097 "required file '$i' not found")
4098 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4099 ($i) = prepend_srcdir ($i);
4100 push_dist_common ($i);
4101 }
4102 push @res, $i;
4103 }
4104 return @res;
4105 }
4109 # handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4110 # -----------------------------------------------------------------
4111 # Handle remaking and configure stuff.
4112 # We need the name of the input file, to do proper remaking rules.
4113 sub handle_configure
4114 {
4115 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4117 prog_error 'empty @inputs'
4118 unless @inputs;
4120 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4121 $makefile_in);
4122 my $rel_makefile = basename $makefile;
4124 my $colon_infile = ':' . join (':', @inputs);
4125 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4126 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4127 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4128 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4129 @configure_deps, @aclocal_m4_deps,
4130 '$(top_srcdir)/' . $configure_ac);
4131 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4132 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4133 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4134 @configuredeps);
4136 my $automake_options = '--' . $strictness_name .
4137 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4139 $output_rules .= file_contents
4140 ('configure',
4141 new Automake::Location,
4142 MAKEFILE => $rel_makefile,
4143 'MAKEFILE-DEPS' => "@rewritten",
4144 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4145 'MAKEFILE-IN' => $rel_makefile_in,
4146 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4147 'MAKEFILE-IN-DEPS' => "@include_stack",
4148 'MAKEFILE-AM' => $rel_makefile_am,
4149 'AUTOMAKE-OPTIONS' => $automake_options,
4150 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4151 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4152 VERBOSE => verbose_flag ('GEN'));
4154 if ($relative_dir eq '.')
4155 {
4156 push_dist_common ('acconfig.h')
4157 if -f 'acconfig.h';
4158 }
4160 # If we have a configure header, require it.
4161 my $hdr_index = 0;
4162 my @distclean_config;
4163 foreach my $spec (@config_headers)
4164 {
4165 $hdr_index += 1;
4166 # $CONFIG_H_PATH: config.h from top level.
4167 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4168 my $config_h_dir = dirname ($config_h_path);
4170 # If the header is in the current directory we want to build
4171 # the header here. Otherwise, if we're at the topmost
4172 # directory and the header's directory doesn't have a
4173 # Makefile, then we also want to build the header.
4174 if ($relative_dir eq $config_h_dir
4175 || ($relative_dir eq '.' && ! is_make_dir ($config_h_dir)))
4176 {
4177 my ($cn_sans_dir, $stamp_dir);
4178 if ($relative_dir eq $config_h_dir)
4179 {
4180 $cn_sans_dir = basename ($config_h_path);
4181 $stamp_dir = '';
4182 }
4183 else
4184 {
4185 $cn_sans_dir = $config_h_path;
4186 if ($config_h_dir eq '.')
4187 {
4188 $stamp_dir = '';
4189 }
4190 else
4191 {
4192 $stamp_dir = $config_h_dir . '/';
4193 }
4194 }
4196 # This will also distribute all inputs.
4197 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4199 # Cannot define rebuild rules for filenames with shell variables.
4200 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4202 # Header defined in this directory.
4203 my @files;
4204 if (-f $config_h_path . '.top')
4205 {
4206 push (@files, "$cn_sans_dir.top");
4207 }
4208 if (-f $config_h_path . '.bot')
4209 {
4210 push (@files, "$cn_sans_dir.bot");
4211 }
4213 push_dist_common (@files);
4215 # For now, acconfig.h can only appear in the top srcdir.
4216 if (-f 'acconfig.h')
4217 {
4218 push (@files, '$(top_srcdir)/acconfig.h');
4219 }
4221 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4222 $output_rules .=
4223 file_contents ('remake-hdr',
4224 new Automake::Location,
4225 FILES => "@files",
4226 'FIRST-HDR' => ($hdr_index == 1),
4227 CONFIG_H => $cn_sans_dir,
4228 CONFIG_HIN => $ins[0],
4229 CONFIG_H_DEPS => "@ins",
4230 CONFIG_H_PATH => $config_h_path,
4231 STAMP => "$stamp");
4233 push @distclean_config, $cn_sans_dir, $stamp;
4234 }
4235 }
4237 $output_rules .= file_contents ('clean-hdr',
4238 new Automake::Location,
4239 FILES => "@distclean_config")
4240 if @distclean_config;
4242 # Distribute and define mkinstalldirs only if it is already present
4243 # in the package, for backward compatibility (some people may still
4244 # use $(mkinstalldirs)).
4245 # TODO: start warning about this in Automake 1.14, and have
4246 # TODO: Automake 2.0 drop it (and the mkinstalldirs script
4247 # TODO: as well).
4248 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4249 if (-f $mkidpath)
4250 {
4251 # Use require_file so that any existing script gets updated
4252 # by --force-missing.
4253 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4254 define_variable ('mkinstalldirs',
4255 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4256 }
4257 else
4258 {
4259 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4260 # at least one argument, and $(mkinstalldirs) used to work
4261 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4262 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4263 }
4265 reject_var ('CONFIG_HEADER',
4266 "'CONFIG_HEADER' is an anachronism; now determined "
4267 . "automatically\nfrom '$configure_ac'");
4269 my @config_h;
4270 foreach my $spec (@config_headers)
4271 {
4272 my ($out, @ins) = split_config_file_spec ($spec);
4273 # Generate CONFIG_HEADER define.
4274 if ($relative_dir eq dirname ($out))
4275 {
4276 push @config_h, basename ($out);
4277 }
4278 else
4279 {
4280 push @config_h, "\$(top_builddir)/$out";
4281 }
4282 }
4283 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4284 if @config_h;
4286 # Now look for other files in this directory which must be remade
4287 # by config.status, and generate rules for them.
4288 my @actual_other_files = ();
4289 # These get cleaned only in a VPATH build.
4290 my @actual_other_vpath_files = ();
4291 foreach my $lfile (@other_input_files)
4292 {
4293 my $file;
4294 my @inputs;
4295 if ($lfile =~ /^([^:]*):(.*)$/)
4296 {
4297 # This is the ":" syntax of AC_OUTPUT.
4298 $file = $1;
4299 @inputs = split (':', $2);
4300 }
4301 else
4302 {
4303 # Normal usage.
4304 $file = $lfile;
4305 @inputs = $file . '.in';
4306 }
4308 # Automake files should not be stored in here, but in %MAKE_LIST.
4309 prog_error ("$lfile in \@other_input_files\n"
4310 . "\@other_input_files = (@other_input_files)")
4311 if -f $file . '.am';
4313 my $local = basename ($file);
4315 # We skip files that aren't in this directory. However, if
4316 # the file's directory does not have a Makefile, and we are
4317 # currently doing '.', then we create a rule to rebuild the
4318 # file in the subdir.
4319 my $fd = dirname ($file);
4320 if ($fd ne $relative_dir)
4321 {
4322 if ($relative_dir eq '.' && ! is_make_dir ($fd))
4323 {
4324 $local = $file;
4325 }
4326 else
4327 {
4328 next;
4329 }
4330 }
4332 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4334 # Cannot output rules for shell variables.
4335 next if (substitute_ac_subst_variables $local) =~ /\$/;
4337 my $condstr = '';
4338 my $cond = $ac_config_files_condition{$lfile};
4339 if (defined $cond)
4340 {
4341 $condstr = $cond->subst_string;
4342 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4343 $ac_config_files_location{$file});
4344 }
4345 $output_rules .= ($condstr . $local . ': '
4346 . '$(top_builddir)/config.status '
4347 . "@rewritten_inputs\n"
4348 . $condstr . "\t"
4349 . 'cd $(top_builddir) && '
4350 . '$(SHELL) ./config.status '
4351 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4352 . '$@'
4353 . "\n");
4354 push (@actual_other_files, $local);
4355 }
4357 # For links we should clean destinations and distribute sources.
4358 foreach my $spec (@config_links)
4359 {
4360 my ($link, $file) = split /:/, $spec;
4361 # Some people do AC_CONFIG_LINKS($computed). We only handle
4362 # the DEST:SRC form.
4363 next unless $file;
4364 my $where = $ac_config_files_location{$link};
4366 # Skip destinations that contain shell variables.
4367 if ((substitute_ac_subst_variables $link) !~ /\$/)
4368 {
4369 # We skip links that aren't in this directory. However, if
4370 # the link's directory does not have a Makefile, and we are
4371 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4372 # in '.'s Makefile.in.
4373 my $local = basename ($link);
4374 my $fd = dirname ($link);
4375 if ($fd ne $relative_dir)
4376 {
4377 if ($relative_dir eq '.' && ! is_make_dir ($fd))
4378 {
4379 $local = $link;
4380 }
4381 else
4382 {
4383 $local = undef;
4384 }
4385 }
4386 if ($file ne $link)
4387 {
4388 push @actual_other_files, $local if $local;
4389 }
4390 else
4391 {
4392 push @actual_other_vpath_files, $local if $local;
4393 }
4394 }
4396 # Do not process sources that contain shell variables.
4397 if ((substitute_ac_subst_variables $file) !~ /\$/)
4398 {
4399 my $fd = dirname ($file);
4401 # We distribute files that are in this directory.
4402 # At the top-level ('.') we also distribute files whose
4403 # directory does not have a Makefile.
4404 if (($fd eq $relative_dir)
4405 || ($relative_dir eq '.' && ! is_make_dir ($fd)))
4406 {
4407 # The following will distribute $file as a side-effect when
4408 # it is appropriate (i.e., when $file is not already an output).
4409 # We do not need the result, just the side-effect.
4410 rewrite_inputs_into_dependencies ($link, $file);
4411 }
4412 }
4413 }
4415 # These files get removed by "make distclean".
4416 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4417 @actual_other_files);
4418 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4419 @actual_other_vpath_files);
4420 }
4422 sub handle_headers ()
4423 {
4424 my @r = am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4425 'oldinclude', 'pkginclude',
4426 'noinst', 'check');
4427 foreach (@r)
4428 {
4429 next unless $_->[1] =~ /\..*$/;
4430 saw_extension ($&);
4431 }
4432 }
4434 sub handle_gettext ()
4435 {
4436 return if ! $seen_gettext || $relative_dir ne '.';
4438 my $subdirs = var 'SUBDIRS';
4440 if (! $subdirs)
4441 {
4442 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4443 return;
4444 }
4446 # Perform some sanity checks to help users get the right setup.
4447 # We disable these tests when po/ doesn't exist in order not to disallow
4448 # unusual gettext setups.
4449 #
4450 # Bruno Haible:
4451 # | The idea is:
4452 # |
4453 # | 1) If a package doesn't have a directory po/ at top level, it
4454 # | will likely have multiple po/ directories in subpackages.
4455 # |
4456 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4457 # | is used without 'external'. It is also useful to warn for the
4458 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4459 # | warnings apply only to the usual layout of packages, therefore
4460 # | they should both be disabled if no po/ directory is found at
4461 # | top level.
4463 if (-d 'po')
4464 {
4465 my @subdirs = $subdirs->value_as_list_recursive;
4467 msg_var ('syntax', $subdirs,
4468 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4469 if ! grep ($_ eq 'po', @subdirs);
4471 # intl/ is not required when AM_GNU_GETTEXT is called with the
4472 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4473 msg_var ('syntax', $subdirs,
4474 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4475 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4476 && ! grep ($_ eq 'intl', @subdirs));
4478 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4479 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4480 msg_var ('syntax', $subdirs,
4481 "'intl' should not be in SUBDIRS when "
4482 . "AM_GNU_GETTEXT([external]) is used")
4483 if ($seen_gettext_external && ! $seen_gettext_intl
4484 && grep ($_ eq 'intl', @subdirs));
4485 }
4487 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4488 }
4490 # Emit makefile footer.
4491 sub handle_footer ()
4492 {
4493 reject_rule ('.SUFFIXES',
4494 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4496 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4497 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4498 # anything else, by sticking it right after the default: target.
4499 $output_header .= ".SUFFIXES:\n";
4500 my $suffixes = var 'SUFFIXES';
4501 my @suffixes = Automake::Rule::suffixes;
4502 if (@suffixes || $suffixes)
4503 {
4504 # Make sure SUFFIXES has unique elements. Sort them to ensure
4505 # the output remains consistent. However, $(SUFFIXES) is
4506 # always at the start of the list, unsorted. This is done
4507 # because make will choose rules depending on the ordering of
4508 # suffixes, and this lets the user have some control. Push
4509 # actual suffixes, and not $(SUFFIXES). Some versions of make
4510 # do not like variable substitutions on the .SUFFIXES line.
4511 my @user_suffixes = ($suffixes
4512 ? $suffixes->value_as_list_recursive : ());
4514 my %suffixes = map { $_ => 1 } @suffixes;
4515 delete @suffixes{@user_suffixes};
4517 $output_header .= (".SUFFIXES: "
4518 . join (' ', @user_suffixes, sort keys %suffixes)
4519 . "\n");
4520 }
4522 $output_trailer .= file_contents ('footer', new Automake::Location);
4523 }
4526 # Generate 'make install' rules.
4527 sub handle_install ()
4528 {
4529 $output_rules .= file_contents
4530 ('install',
4531 new Automake::Location,
4532 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4533 ? (" \$(BUILT_SOURCES)\n"
4534 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4535 : ''),
4536 'installdirs-local' => (user_phony_rule ('installdirs-local')
4537 ? ' installdirs-local' : ''),
4538 am__installdirs => variable_value ('am__installdirs') || '');
4539 }
4542 # handle_all ($MAKEFILE)
4543 #-----------------------
4544 # Deal with 'all' and 'all-am'.
4545 sub handle_all
4546 {
4547 my ($makefile) = @_;
4549 # Output 'all-am'.
4551 # Put this at the beginning for the sake of non-GNU makes. This
4552 # is still wrong if these makes can run parallel jobs. But it is
4553 # right enough.
4554 unshift (@all, basename ($makefile));
4556 foreach my $spec (@config_headers)
4557 {
4558 my ($out, @ins) = split_config_file_spec ($spec);
4559 push (@all, basename ($out))
4560 if dirname ($out) eq $relative_dir;
4561 }
4563 # Install 'all' hooks.
4564 push (@all, "all-local")
4565 if user_phony_rule "all-local";
4567 pretty_print_rule ("all-am:", "\t\t", @all);
4568 depend ('.PHONY', 'all-am', 'all');
4571 # Output 'all'.
4573 my @local_headers = ();
4574 push @local_headers, '$(BUILT_SOURCES)'
4575 if var ('BUILT_SOURCES');
4576 foreach my $spec (@config_headers)
4577 {
4578 my ($out, @ins) = split_config_file_spec ($spec);
4579 push @local_headers, basename ($out)
4580 if dirname ($out) eq $relative_dir;
4581 }
4583 if (@local_headers)
4584 {
4585 # We need to make sure config.h is built before we recurse.
4586 # We also want to make sure that built sources are built
4587 # before any ordinary 'all' targets are run. We can't do this
4588 # by changing the order of dependencies to the "all" because
4589 # that breaks when using parallel makes. Instead we handle
4590 # things explicitly.
4591 $output_all .= ("all: @local_headers"
4592 . "\n\t"
4593 . '$(MAKE) $(AM_MAKEFLAGS) '
4594 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4595 . "\n\n");
4596 depend ('.MAKE', 'all');
4597 }
4598 else
4599 {
4600 $output_all .= "all: " . (var ('SUBDIRS')
4601 ? 'all-recursive' : 'all-am') . "\n\n";
4602 }
4603 }
4605 # Generate helper targets for user-defined recursive targets, where needed.
4606 sub handle_user_recursion ()
4607 {
4608 return unless @extra_recursive_targets;
4610 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4611 map { "$_-recursive" } @extra_recursive_targets);
4612 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4613 foreach my $target (@extra_recursive_targets)
4614 {
4615 # This allows the default target's rules to be overridden in
4616 # Makefile.am.
4617 user_phony_rule ($target);
4618 depend ("$target", "$target-$aux");
4619 depend ("$target-am", "$target-local");
4620 # Every user-defined recursive target 'foo' *must* have a valid
4621 # associated 'foo-local' rule; we define it as an empty rule by
4622 # default, so that the user can transparently extend it in his
4623 # own Makefile.am.
4624 pretty_print_rule ("$target-local:", '', '');
4625 # $target-recursive might as well be undefined, so do not add
4626 # it here; it's taken care of in subdirs.am anyway.
4627 depend (".PHONY", "$target-am", "$target-local");
4628 }
4629 }
4632 # Handle check merge target specially.
4633 sub do_check_merge_target ()
4634 {
4635 # Include user-defined local form of target.
4636 push @check_tests, 'check-local'
4637 if user_phony_rule 'check-local';
4639 # The check target must depend on the local equivalent of
4640 # 'all', to ensure all the primary targets are built. Then it
4641 # must build the local check rules.
4642 $output_rules .= "check-am: all-am\n";
4643 if (@check)
4644 {
4645 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4646 depend ('.MAKE', 'check-am');
4647 }
4649 if (@check_tests)
4650 {
4651 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4652 @check_tests);
4653 depend ('.MAKE', 'check-am');
4654 }
4656 depend '.PHONY', 'check', 'check-am';
4657 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4658 $output_rules .= ("check: "
4659 . (var ('BUILT_SOURCES')
4660 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4661 : '')
4662 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4663 . "\n");
4664 depend ('.MAKE', 'check')
4665 if var ('BUILT_SOURCES');
4666 }
4668 # Handle all 'clean' targets.
4669 sub handle_clean
4670 {
4671 my ($makefile) = @_;
4673 # Clean the files listed in user variables if they exist.
4674 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4675 if var ('MOSTLYCLEANFILES');
4676 $clean_files{'$(CLEANFILES)'} = CLEAN
4677 if var ('CLEANFILES');
4678 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4679 if var ('DISTCLEANFILES');
4680 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4681 if var ('MAINTAINERCLEANFILES');
4683 # Built sources are automatically removed by maintainer-clean.
4684 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4685 if var ('BUILT_SOURCES');
4687 # Compute a list of "rm"s to run for each target.
4688 my %rms = (MOSTLY_CLEAN, [],
4689 CLEAN, [],
4690 DIST_CLEAN, [],
4691 MAINTAINER_CLEAN, []);
4693 foreach my $file (keys %clean_files)
4694 {
4695 my $when = $clean_files{$file};
4696 prog_error 'invalid entry in %clean_files'
4697 unless exists $rms{$when};
4699 my $rm = "rm -f $file";
4700 # If file is a variable, make sure when don't call 'rm -f' without args.
4701 $rm ="test -z \"$file\" || $rm"
4702 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4704 push @{$rms{$when}}, "\t-$rm\n";
4705 }
4707 $output_rules .= file_contents
4708 ('clean',
4709 new Automake::Location,
4710 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4711 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4712 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4713 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4714 MAKEFILE => basename $makefile,
4715 );
4716 }
4719 # Subroutine for handle_factored_dependencies() to let '.PHONY' and
4720 # other '.TARGETS' be last. This is meant to be used as a comparison
4721 # subroutine passed to the sort built-int.
4722 sub target_cmp
4723 {
4724 return 0 if $a eq $b;
4726 my $a1 = substr ($a, 0, 1);
4727 my $b1 = substr ($b, 0, 1);
4728 if ($a1 ne $b1)
4729 {
4730 return -1 if $b1 eq '.';
4731 return 1 if $a1 eq '.';
4732 }
4733 return $a cmp $b;
4734 }
4737 # Handle everything related to gathered targets.
4738 sub handle_factored_dependencies ()
4739 {
4740 # Reject bad hooks.
4741 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4742 'uninstall-exec-local', 'uninstall-exec-hook',
4743 'uninstall-dvi-local',
4744 'uninstall-html-local',
4745 'uninstall-info-local',
4746 'uninstall-pdf-local',
4747 'uninstall-ps-local')
4748 {
4749 my $x = $utarg;
4750 $x =~ s/-.*-/-/;
4751 reject_rule ($utarg, "use '$x', not '$utarg'");
4752 }
4754 reject_rule ('install-local',
4755 "use 'install-data-local' or 'install-exec-local', "
4756 . "not 'install-local'");
4758 reject_rule ('install-hook',
4759 "use 'install-data-hook' or 'install-exec-hook', "
4760 . "not 'install-hook'");
4762 # Install the -local hooks.
4763 foreach (keys %dependencies)
4764 {
4765 # Hooks are installed on the -am targets.
4766 s/-am$// or next;
4767 depend ("$_-am", "$_-local")
4768 if user_phony_rule "$_-local";
4769 }
4771 # Install the -hook hooks.
4772 # FIXME: Why not be as liberal as we are with -local hooks?
4773 foreach ('install-exec', 'install-data', 'uninstall')
4774 {
4775 if (user_phony_rule "$_-hook")
4776 {
4777 depend ('.MAKE', "$_-am");
4778 register_action("$_-am",
4779 ("\t\@\$(NORMAL_INSTALL)\n"
4780 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4781 }
4782 }
4784 # All the required targets are phony.
4785 depend ('.PHONY', keys %required_targets);
4787 # Actually output gathered targets.
4788 foreach (sort target_cmp keys %dependencies)
4789 {
4790 # If there is nothing about this guy, skip it.
4791 next
4792 unless (@{$dependencies{$_}}
4793 || $actions{$_}
4794 || $required_targets{$_});
4796 # Define gathered targets in undefined conditions.
4797 # FIXME: Right now we must handle .PHONY as an exception,
4798 # because people write things like
4799 # .PHONY: myphonytarget
4800 # to append dependencies. This would not work if Automake
4801 # refrained from defining its own .PHONY target as it does
4802 # with other overridden targets.
4803 # Likewise for '.MAKE' and '.PRECIOUS'.
4804 my @undefined_conds = (TRUE,);
4805 if ($_ ne '.PHONY' && $_ ne '.MAKE' && $_ ne '.PRECIOUS')
4806 {
4807 @undefined_conds =
4808 Automake::Rule::define ($_, 'internal',
4809 RULE_AUTOMAKE, TRUE, INTERNAL);
4810 }
4811 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4812 foreach my $cond (@undefined_conds)
4813 {
4814 my $condstr = $cond->subst_string;
4815 pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4816 $output_rules .= $actions{$_} if defined $actions{$_};
4817 $output_rules .= "\n";
4818 }
4819 }
4820 }
4823 sub handle_tests_dejagnu ()
4824 {
4825 push (@check_tests, 'check-DEJAGNU');
4826 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4827 }
4829 # handle_per_suffix_test ($TEST_SUFFIX, [%TRANSFORM])
4830 #----------------------------------------------------
4831 sub handle_per_suffix_test
4832 {
4833 my ($test_suffix, %transform) = @_;
4834 my ($pfx, $generic, $am_exeext);
4835 if ($test_suffix eq '')
4836 {
4837 $pfx = '';
4838 $generic = 0;
4839 $am_exeext = 'FALSE';
4840 }
4841 else
4842 {
4843 prog_error ("test suffix '$test_suffix' lacks leading dot")
4844 unless $test_suffix =~ m/^\.(.*)/;
4845 $pfx = uc ($1) . '_';
4846 $generic = 1;
4847 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4848 : 'FALSE';
4849 }
4850 # The "test driver" program, deputed to handle tests protocol used by
4851 # test scripts. By default, it's assumed that no protocol is used, so
4852 # we fall back to the old behaviour, implemented by the 'test-driver'
4853 # auxiliary script.
4854 if (! var "${pfx}LOG_DRIVER")
4855 {
4856 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4857 define_variable ("${pfx}LOG_DRIVER",
4858 "\$(SHELL) $am_config_aux_dir/test-driver",
4859 INTERNAL);
4860 }
4861 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4862 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4863 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4864 my $compile = "${pfx}LOG_COMPILE";
4865 define_variable ($compile,
4866 '$(' . $pfx . 'LOG_COMPILER)'
4867 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4868 . ' $(' . $pfx . 'LOG_FLAGS)',
4869 INTERNAL);
4870 $output_rules .= file_contents ('check2', new Automake::Location,
4871 GENERIC => $generic,
4872 DRIVER => $driver,
4873 DRIVER_FLAGS => $driver_flags,
4874 COMPILE => '$(' . $compile . ')',
4875 EXT => $test_suffix,
4876 am__EXEEXT => $am_exeext,
4877 %transform);
4878 }
4880 # is_valid_test_extension ($EXT)
4881 # ------------------------------
4882 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4883 # otherwise.
4884 sub is_valid_test_extension
4885 {
4886 my $ext = shift;
4887 return 1
4888 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4889 return 1
4890 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4891 return 0;
4892 }
4895 sub handle_tests ()
4896 {
4897 if (option 'dejagnu')
4898 {
4899 handle_tests_dejagnu;
4900 }
4901 else
4902 {
4903 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4904 {
4905 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4906 . "'AUTOMAKE_OPTIONS'");
4907 }
4908 }
4910 if (var ('TESTS'))
4911 {
4912 push (@check_tests, 'check-TESTS');
4913 my $check_deps = "@check";
4914 $output_rules .= file_contents ('check', new Automake::Location,
4915 SERIAL_TESTS => !! option 'serial-tests',
4916 CHECK_DEPS => $check_deps);
4918 # Tests that are known programs should have $(EXEEXT) appended.
4919 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4920 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4921 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4922 if (var ('XFAIL_TESTS'));
4924 if (! option 'serial-tests')
4925 {
4926 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4927 my $suff = '.test';
4928 my $at_exeext = '';
4929 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4930 if ($handle_exeext)
4931 {
4932 $at_exeext = subst ('EXEEXT');
4933 $suff = $at_exeext . ' ' . $suff;
4934 }
4935 if (! var 'TEST_EXTENSIONS')
4936 {
4937 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4938 }
4939 my $var = var 'TEST_EXTENSIONS';
4940 # Currently, we are not able to deal with conditional contents
4941 # in TEST_EXTENSIONS.
4942 if ($var->has_conditional_contents)
4943 {
4944 msg_var 'unsupported', $var,
4945 "'TEST_EXTENSIONS' cannot have conditional contents";
4946 }
4947 my @test_suffixes = $var->value_as_list_recursive;
4948 if ((my @invalid_test_suffixes =
4949 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4950 {
4951 error $var->rdef (TRUE)->location,
4952 "invalid test extensions: @invalid_test_suffixes";
4953 }
4954 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4955 if ($handle_exeext)
4956 {
4957 unshift (@test_suffixes, $at_exeext)
4958 unless $test_suffixes[0] eq $at_exeext;
4959 }
4960 unshift (@test_suffixes, '');
4962 transform_variable_recursively
4963 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4964 sub {
4965 my ($subvar, $val, $cond, $full_cond) = @_;
4966 my $obj = $val;
4967 return $obj
4968 if $val =~ /^\@.*\@$/;
4969 $obj =~ s/\$\(EXEEXT\)$//o;
4971 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4972 {
4973 msg ('error', $subvar->rdef ($cond)->location,
4974 "using '$1' in TESTS is currently broken: '$val'");
4975 }
4977 foreach my $test_suffix (@test_suffixes)
4978 {
4979 next
4980 if $test_suffix eq $at_exeext || $test_suffix eq '';
4981 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4982 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4983 }
4984 my $base = $obj;
4985 $obj .= '.log';
4986 handle_per_suffix_test ('',
4987 OBJ => $obj,
4988 BASE => $base,
4989 SOURCE => $val);
4990 return $obj;
4991 });
4993 my $nhelper=1;
4994 my $prev = 'TESTS';
4995 my $post = '';
4996 my $last_suffix = $test_suffixes[$#test_suffixes];
4997 my $cur = '';
4998 foreach my $test_suffix (@test_suffixes)
4999 {
5000 if ($test_suffix eq $last_suffix)
5001 {
5002 $cur = 'TEST_LOGS';
5003 }
5004 else
5005 {
5006 $cur = 'am__test_logs' . $nhelper;
5007 }
5008 define_variable ($cur,
5009 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5010 $post = '.log';
5011 $prev = $cur;
5012 $nhelper++;
5013 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5014 {
5015 handle_per_suffix_test ($test_suffix,
5016 OBJ => '',
5017 BASE => '$*',
5018 SOURCE => '$<');
5019 }
5020 }
5021 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5022 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
5023 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5024 }
5025 }
5026 }
5028 sub handle_emacs_lisp ()
5029 {
5030 my @elfiles = am_install_var ('-candist', 'lisp', 'LISP',
5031 'lisp', 'noinst');
5033 return if ! @elfiles;
5035 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5036 map { $_->[1] } @elfiles);
5037 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5038 '$(am__ELFILES:.el=.elc)');
5039 # This one can be overridden by users.
5040 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5042 push @all, '$(ELCFILES)';
5044 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5045 'EMACS', 'lispdir');
5046 }
5048 sub handle_python ()
5049 {
5050 my @pyfiles = am_install_var ('-defaultdist', 'python', 'PYTHON',
5051 'noinst');
5052 return if ! @pyfiles;
5054 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5055 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5056 define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5057 }
5059 sub handle_java ()
5060 {
5061 my @sourcelist = am_install_var ('-candist',
5062 'java', 'JAVA',
5063 'noinst', 'check');
5064 return if ! @sourcelist;
5066 my @prefixes = am_primary_prefixes ('JAVA', 1,
5067 'noinst', 'check');
5069 my $dir;
5070 my @java_sources = ();
5071 foreach my $prefix (@prefixes)
5072 {
5073 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5075 next
5076 if $curs eq 'EXTRA';
5078 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5080 if (defined $dir)
5081 {
5082 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5083 unless $curs eq $dir;
5084 }
5086 $dir = $curs;
5087 }
5089 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5090 "@java_sources");
5092 if ($dir eq 'check')
5093 {
5094 push (@check, "class$dir.stamp");
5095 }
5096 else
5097 {
5098 push (@all, "class$dir.stamp");
5099 }
5100 }
5103 sub handle_minor_options ()
5104 {
5105 if (option 'readme-alpha')
5106 {
5107 if ($relative_dir eq '.')
5108 {
5109 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5110 {
5111 msg ('error-gnits', $package_version_location,
5112 "version '$package_version' doesn't follow " .
5113 "Gnits standards");
5114 }
5115 if (defined $1 && -f 'README-alpha')
5116 {
5117 # This means we have an alpha release. See
5118 # GNITS_VERSION_PATTERN for details.
5119 push_dist_common ('README-alpha');
5120 }
5121 }
5122 }
5123 }
5125 ################################################################
5127 # ($OUTPUT, @INPUTS)
5128 # split_config_file_spec ($SPEC)
5129 # ------------------------------
5130 # Decode the Autoconf syntax for config files (files, headers, links
5131 # etc.).
5132 sub split_config_file_spec
5133 {
5134 my ($spec) = @_;
5135 my ($output, @inputs) = split (/:/, $spec);
5137 push @inputs, "$output.in"
5138 unless @inputs;
5140 return ($output, @inputs);
5141 }
5143 # $input
5144 # locate_am (@POSSIBLE_SOURCES)
5145 # -----------------------------
5146 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5147 # This functions returns the first *.in file for which a *.am exists.
5148 # It returns undef otherwise.
5149 sub locate_am
5150 {
5151 my (@rest) = @_;
5152 my $input;
5153 foreach my $file (@rest)
5154 {
5155 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5156 {
5157 $input = $file;
5158 last;
5159 }
5160 }
5161 return $input;
5162 }
5164 my %make_list;
5166 # scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5167 # --------------------------------------------------
5168 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5169 # (or AC_OUTPUT).
5170 sub scan_autoconf_config_files
5171 {
5172 my ($where, $config_files) = @_;
5174 # Look at potential Makefile.am's.
5175 foreach (split ' ', $config_files)
5176 {
5177 # Must skip empty string for Perl 4.
5178 next if $_ eq "\\" || $_ eq '';
5180 # Handle $local:$input syntax.
5181 my ($local, @rest) = split (/:/);
5182 @rest = ("$local.in",) unless @rest;
5183 # Keep in sync with test 'conffile-leading-dot.sh'.
5184 msg ('unsupported', $where,
5185 "omit leading './' from config file names such as '$local';"
5186 . "\nremake rules might be subtly broken otherwise")
5187 if ($local =~ /^\.\//);
5188 my $input = locate_am @rest;
5189 if ($input)
5190 {
5191 # We have a file that automake should generate.
5192 $make_list{$input} = join (':', ($local, @rest));
5193 }
5194 else
5195 {
5196 # We have a file that automake should cause to be
5197 # rebuilt, but shouldn't generate itself.
5198 push (@other_input_files, $_);
5199 }
5200 $ac_config_files_location{$local} = $where;
5201 $ac_config_files_condition{$local} =
5202 new Automake::Condition (@cond_stack)
5203 if (@cond_stack);
5204 }
5205 }
5208 sub scan_autoconf_traces
5209 {
5210 my ($filename) = @_;
5212 # Macros to trace, with their minimal number of arguments.
5213 #
5214 # IMPORTANT: If you add a macro here, you should also add this macro
5215 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5216 my %traced = (
5217 AC_CANONICAL_BUILD => 0,
5218 AC_CANONICAL_HOST => 0,
5219 AC_CANONICAL_TARGET => 0,
5220 AC_CONFIG_AUX_DIR => 1,
5221 AC_CONFIG_FILES => 1,
5222 AC_CONFIG_HEADERS => 1,
5223 AC_CONFIG_LIBOBJ_DIR => 1,
5224 AC_CONFIG_LINKS => 1,
5225 AC_FC_SRCEXT => 1,
5226 AC_INIT => 0,
5227 AC_LIBSOURCE => 1,
5228 AC_REQUIRE_AUX_FILE => 1,
5229 AC_SUBST_TRACE => 1,
5230 AM_AUTOMAKE_VERSION => 1,
5231 AM_PROG_MKDIR_P => 0,
5232 AM_CONDITIONAL => 2,
5233 AM_EXTRA_RECURSIVE_TARGETS => 1,
5234 AM_GNU_GETTEXT => 0,
5235 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5236 AM_INIT_AUTOMAKE => 0,
5237 AM_MAINTAINER_MODE => 0,
5238 AM_PROG_AR => 0,
5239 _AM_SUBST_NOTMAKE => 1,
5240 _AM_COND_IF => 1,
5241 _AM_COND_ELSE => 1,
5242 _AM_COND_ENDIF => 1,
5243 LT_SUPPORTED_TAG => 1,
5244 _LT_AC_TAGCONFIG => 0,
5245 m4_include => 1,
5246 m4_sinclude => 1,
5247 sinclude => 1,
5248 );
5250 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5252 # Use a separator unlikely to be used, not ':', the default, which
5253 # has a precise meaning for AC_CONFIG_FILES and so on.
5254 $traces .= join (' ',
5255 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5256 (keys %traced));
5258 my $tracefh = new Automake::XFile ("$traces $filename |");
5259 verb "reading $traces";
5261 @cond_stack = ();
5262 my $where;
5264 while ($_ = $tracefh->getline)
5265 {
5266 chomp;
5267 my ($here, $depth, @args) = split (/::/);
5268 $where = new Automake::Location $here;
5269 my $macro = $args[0];
5271 prog_error ("unrequested trace '$macro'")
5272 unless exists $traced{$macro};
5274 # Skip and diagnose malformed calls.
5275 if ($#args < $traced{$macro})
5276 {
5277 msg ('syntax', $where, "not enough arguments for $macro");
5278 next;
5279 }
5281 # Alphabetical ordering please.
5282 if ($macro eq 'AC_CANONICAL_BUILD')
5283 {
5284 if ($seen_canonical <= AC_CANONICAL_BUILD)
5285 {
5286 $seen_canonical = AC_CANONICAL_BUILD;
5287 }
5288 }
5289 elsif ($macro eq 'AC_CANONICAL_HOST')
5290 {
5291 if ($seen_canonical <= AC_CANONICAL_HOST)
5292 {
5293 $seen_canonical = AC_CANONICAL_HOST;
5294 }
5295 }
5296 elsif ($macro eq 'AC_CANONICAL_TARGET')
5297 {
5298 $seen_canonical = AC_CANONICAL_TARGET;
5299 }
5300 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5301 {
5302 if ($seen_init_automake)
5303 {
5304 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5305 . "AM_INIT_AUTOMAKE ...", partial => 1);
5306 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5307 }
5308 $config_aux_dir = $args[1];
5309 $config_aux_dir_set_in_configure_ac = 1;
5310 check_directory ($config_aux_dir, $where);
5311 }
5312 elsif ($macro eq 'AC_CONFIG_FILES')
5313 {
5314 # Look at potential Makefile.am's.
5315 scan_autoconf_config_files ($where, $args[1]);
5316 }
5317 elsif ($macro eq 'AC_CONFIG_HEADERS')
5318 {
5319 foreach my $spec (split (' ', $args[1]))
5320 {
5321 my ($dest, @src) = split (':', $spec);
5322 $ac_config_files_location{$dest} = $where;
5323 push @config_headers, $spec;
5324 }
5325 }
5326 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5327 {
5328 $config_libobj_dir = $args[1];
5329 check_directory ($config_libobj_dir, $where);
5330 }
5331 elsif ($macro eq 'AC_CONFIG_LINKS')
5332 {
5333 foreach my $spec (split (' ', $args[1]))
5334 {
5335 my ($dest, $src) = split (':', $spec);
5336 $ac_config_files_location{$dest} = $where;
5337 push @config_links, $spec;
5338 }
5339 }
5340 elsif ($macro eq 'AC_FC_SRCEXT')
5341 {
5342 my $suffix = $args[1];
5343 # These flags are used as %SOURCEFLAG% in depend2.am,
5344 # where the trailing space is important.
5345 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5346 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5347 }
5348 elsif ($macro eq 'AC_INIT')
5349 {
5350 if (defined $args[2])
5351 {
5352 $package_version = $args[2];
5353 $package_version_location = $where;
5354 }
5355 }
5356 elsif ($macro eq 'AC_LIBSOURCE')
5357 {
5358 $libsources{$args[1]} = $here;
5359 }
5360 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5361 {
5362 # Only remember the first time a file is required.
5363 $required_aux_file{$args[1]} = $where
5364 unless exists $required_aux_file{$args[1]};
5365 }
5366 elsif ($macro eq 'AC_SUBST_TRACE')
5367 {
5368 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5369 # AC_SUBST(5), then too bad.
5370 $configure_vars{$args[1]} = $where
5371 if $args[1] =~ /^\w+$/;
5372 }
5373 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5374 {
5375 error ($where,
5376 "version mismatch. This is Automake $VERSION,\n" .
5377 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5378 "comes from Automake $args[1]. You should recreate\n" .
5379 "aclocal.m4 with aclocal and run automake again.\n",
5380 # $? = 63 is used to indicate version mismatch to missing.
5381 exit_code => 63)
5382 if $VERSION ne $args[1];
5384 $seen_automake_version = 1;
5385 }
5386 elsif ($macro eq 'AM_PROG_MKDIR_P')
5387 {
5388 msg 'obsolete', $where, <<'EOF';
5389 The 'AM_PROG_MKDIR_P' macro is deprecated, and its use is discouraged.
5390 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5391 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5392 EOF
5393 }
5394 elsif ($macro eq 'AM_CONDITIONAL')
5395 {
5396 $configure_cond{$args[1]} = $where;
5397 }
5398 elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
5399 {
5400 # Empty leading/trailing fields might be produced by split,
5401 # hence the grep is really needed.
5402 push @extra_recursive_targets,
5403 grep (/./, (split /\s+/, $args[1]));
5404 }
5405 elsif ($macro eq 'AM_GNU_GETTEXT')
5406 {
5407 $seen_gettext = $where;
5408 $ac_gettext_location = $where;
5409 $seen_gettext_external = grep ($_ eq 'external', @args);
5410 }
5411 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5412 {
5413 $seen_gettext_intl = $where;
5414 }
5415 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5416 {
5417 $seen_init_automake = $where;
5418 if (defined $args[2])
5419 {
5420 msg 'obsolete', $where, <<'EOF';
5421 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5422 https://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
5423 EOF
5424 $package_version = $args[2];
5425 $package_version_location = $where;
5426 }
5427 elsif (defined $args[1])
5428 {
5429 my @opts = split (' ', $args[1]);
5430 @opts = map { { option => $_, where => $where } } @opts;
5431 exit $exit_code unless process_global_option_list (@opts);
5432 }
5433 }
5434 elsif ($macro eq 'AM_MAINTAINER_MODE')
5435 {
5436 $seen_maint_mode = $where;
5437 }
5438 elsif ($macro eq 'AM_PROG_AR')
5439 {
5440 $seen_ar = $where;
5441 }
5442 elsif ($macro eq '_AM_COND_IF')
5443 {
5444 cond_stack_if ('', $args[1], $where);
5445 error ($where, "missing m4 quoting, macro depth $depth")
5446 if ($depth != 1);
5447 }
5448 elsif ($macro eq '_AM_COND_ELSE')
5449 {
5450 cond_stack_else ('!', $args[1], $where);
5451 error ($where, "missing m4 quoting, macro depth $depth")
5452 if ($depth != 1);
5453 }
5454 elsif ($macro eq '_AM_COND_ENDIF')
5455 {
5456 cond_stack_endif (undef, undef, $where);
5457 error ($where, "missing m4 quoting, macro depth $depth")
5458 if ($depth != 1);
5459 }
5460 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5461 {
5462 $ignored_configure_vars{$args[1]} = $where;
5463 }
5464 elsif ($macro eq 'm4_include'
5465 || $macro eq 'm4_sinclude'
5466 || $macro eq 'sinclude')
5467 {
5468 # Skip missing 'sinclude'd files.
5469 next if $macro ne 'm4_include' && ! -f $args[1];
5471 # Some modified versions of Autoconf don't use
5472 # frozen files. Consequently it's possible that we see all
5473 # m4_include's performed during Autoconf's startup.
5474 # Obviously we don't want to distribute Autoconf's files
5475 # so we skip absolute filenames here.
5476 push @configure_deps, '$(top_srcdir)/' . $args[1]
5477 unless $here =~ m,^(?:\w:)?[\\/],;
5478 # Keep track of the greatest timestamp.
5479 if (-e $args[1])
5480 {
5481 my $mtime = mtime $args[1];
5482 $configure_deps_greatest_timestamp = $mtime
5483 if $mtime > $configure_deps_greatest_timestamp;
5484 }
5485 }
5486 elsif ($macro eq 'LT_SUPPORTED_TAG')
5487 {
5488 $libtool_tags{$args[1]} = 1;
5489 $libtool_new_api = 1;
5490 }
5491 elsif ($macro eq '_LT_AC_TAGCONFIG')
5492 {
5493 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5494 # We use it to detect whether tags are supported. Our
5495 # preferred interface is LT_SUPPORTED_TAG, but it was
5496 # introduced in Libtool 1.6.
5497 if (0 == keys %libtool_tags)
5498 {
5499 # Hardcode the tags supported by Libtool 1.5.
5500 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5501 }
5502 }
5503 }
5505 error ($where, "condition stack not properly closed")
5506 if (@cond_stack);
5508 $tracefh->close;
5509 }
5512 # Check whether we use 'configure.ac' or 'configure.in'.
5513 # Scan it (and possibly 'aclocal.m4') for interesting things.
5514 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5515 sub scan_autoconf_files ()
5516 {
5517 # Reinitialize libsources here. This isn't really necessary,
5518 # since we currently assume there is only one configure.ac. But
5519 # that won't always be the case.
5520 %libsources = ();
5522 # Keep track of the youngest configure dependency.
5523 $configure_deps_greatest_timestamp = mtime $configure_ac;
5524 if (-e 'aclocal.m4')
5525 {
5526 my $mtime = mtime 'aclocal.m4';
5527 $configure_deps_greatest_timestamp = $mtime
5528 if $mtime > $configure_deps_greatest_timestamp;
5529 }
5531 scan_autoconf_traces ($configure_ac);
5533 @configure_input_files = sort keys %make_list;
5534 # Set input and output files if not specified by user.
5535 if (! @input_files)
5536 {
5537 @input_files = @configure_input_files;
5538 %output_files = %make_list;
5539 }
5542 if (! $seen_init_automake)
5543 {
5544 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5545 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5546 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5547 . "and that aclocal.m4 was recently regenerated "
5548 . "(using aclocal)");
5549 }
5550 else
5551 {
5552 if (! $seen_automake_version)
5553 {
5554 if (-f 'aclocal.m4')
5555 {
5556 error ($seen_init_automake,
5557 "your implementation of AM_INIT_AUTOMAKE comes from " .
5558 "an\nold Automake version. You should recreate " .
5559 "aclocal.m4\nwith aclocal and run automake again",
5560 # $? = 63 is used to indicate version mismatch to missing.
5561 exit_code => 63);
5562 }
5563 else
5564 {
5565 error ($seen_init_automake,
5566 "no proper implementation of AM_INIT_AUTOMAKE was " .
5567 "found,\nprobably because aclocal.m4 is missing.\n" .
5568 "You should run aclocal to create this file, then\n" .
5569 "run automake again");
5570 }
5571 }
5572 }
5574 locate_aux_dir ();
5576 # Look for some files we need. Always check for these. This
5577 # check must be done for every run, even those where we are only
5578 # looking at a subdir Makefile. We must set relative_dir for
5579 # push_required_file to work.
5580 # Sort the files for stable verbose output.
5581 $relative_dir = '.';
5582 foreach my $file (sort keys %required_aux_file)
5583 {
5584 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5585 }
5586 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5587 if -f $config_aux_dir . '/install.sh';
5589 # Preserve dist_common for later.
5590 @configure_dist_common = @dist_common;
5591 }
5593 ################################################################
5595 # Do any extra checking for GNU standards.
5596 sub check_gnu_standards ()
5597 {
5598 if ($relative_dir eq '.')
5599 {
5600 # In top level (or only) directory.
5601 require_file ("$am_file.am", GNU,
5602 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5604 # Accept one of these three licenses; default to COPYING.
5605 # Make sure we do not overwrite an existing license.
5606 my $license;
5607 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5608 {
5609 if (-f $_)
5610 {
5611 $license = $_;
5612 last;
5613 }
5614 }
5615 require_file ("$am_file.am", GNU, 'COPYING')
5616 unless $license;
5617 }
5619 for my $opt ('no-installman', 'no-installinfo')
5620 {
5621 msg ('error-gnu', option $opt,
5622 "option '$opt' disallowed by GNU standards")
5623 if option $opt;
5624 }
5625 }
5627 # Do any extra checking for GNITS standards.
5628 sub check_gnits_standards ()
5629 {
5630 if ($relative_dir eq '.')
5631 {
5632 # In top level (or only) directory.
5633 require_file ("$am_file.am", GNITS, 'THANKS');
5634 }
5635 }
5637 ################################################################
5638 #
5639 # Functions to handle files of each language.
5641 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5642 # simple formula: Return value is LANG_SUBDIR if the resulting object
5643 # file should be in a subdir if the source file is, LANG_PROCESS if
5644 # file is to be dealt with, LANG_IGNORE otherwise.
5646 # Much of the actual processing is handled in
5647 # handle_single_transform. These functions exist so that
5648 # auxiliary information can be recorded for a later cleanup pass.
5649 # Note that the calls to these functions are computed, so don't bother
5650 # searching for their precise names in the source.
5652 # This is just a convenience function that can be used to determine
5653 # when a subdir object should be used.
5654 sub lang_sub_obj ()
5655 {
5656 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5657 }
5659 # Rewrite a single header file.
5660 sub lang_header_rewrite
5661 {
5662 # Header files are simply ignored.
5663 return LANG_IGNORE;
5664 }
5666 # Rewrite a single Vala source file.
5667 sub lang_vala_rewrite
5668 {
5669 my ($directory, $base, $ext) = @_;
5671 (my $newext = $ext) =~ s/vala$/c/;
5672 return (LANG_SUBDIR, $newext);
5673 }
5675 # Rewrite a single yacc/yacc++ file.
5676 sub lang_yacc_rewrite
5677 {
5678 my ($directory, $base, $ext) = @_;
5680 my $r = lang_sub_obj;
5681 (my $newext = $ext) =~ tr/y/c/;
5682 return ($r, $newext);
5683 }
5684 sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
5686 # Rewrite a single lex/lex++ file.
5687 sub lang_lex_rewrite
5688 {
5689 my ($directory, $base, $ext) = @_;
5691 my $r = lang_sub_obj;
5692 (my $newext = $ext) =~ tr/l/c/;
5693 return ($r, $newext);
5694 }
5695 sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
5697 # Rewrite a single Java file.
5698 sub lang_java_rewrite
5699 {
5700 return LANG_SUBDIR;
5701 }
5703 # The lang_X_finish functions are called after all source file
5704 # processing is done. Each should handle defining rules for the
5705 # language, etc. A finish function is only called if a source file of
5706 # the appropriate type has been seen.
5708 sub lang_vala_finish_target
5709 {
5710 my ($self, $name) = @_;
5712 my $derived = canonicalize ($name);
5713 my $var = var "${derived}_SOURCES";
5714 return unless $var;
5716 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5718 # For automake bug#11229.
5719 return unless @vala_sources;
5721 foreach my $vala_file (@vala_sources)
5722 {
5723 my $c_file = $vala_file;
5724 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5725 {
5726 $c_file = "\$(srcdir)/$c_file";
5727 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5728 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5729 . "\t\@if test -f \$@; then :; else \\\n"
5730 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5731 . "\tfi\n";
5732 $clean_files{$c_file} = MAINTAINER_CLEAN;
5733 }
5734 }
5736 # Add rebuild rules for generated header and vapi files
5737 my $flags = var ($derived . '_VALAFLAGS');
5738 if ($flags)
5739 {
5740 my $lastflag = '';
5741 foreach my $flag ($flags->value_as_list_recursive)
5742 {
5743 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5744 '--vapi', '--internal-vapi', '--gir')))
5745 {
5746 my $headerfile = "\$(srcdir)/$flag";
5747 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5748 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5749 . "\t\@if test -f \$@; then :; else \\\n"
5750 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5751 . "\tfi\n";
5753 # valac is not used when building from dist tarballs
5754 # distribute the generated files
5755 push_dist_common ($headerfile);
5756 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5757 }
5758 $lastflag = $flag;
5759 }
5760 }
5762 my $compile = $self->compile;
5764 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5765 # rule into '${derived}_VALAFLAGS' if it exists.
5766 my $val = "${derived}_VALAFLAGS";
5767 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5768 if set_seen ($val);
5770 # VALAFLAGS is a user variable (per GNU Standards),
5771 # it should not be overridden in the Makefile...
5772 check_user_variables 'VALAFLAGS';
5774 my $dirname = dirname ($name);
5776 # Only generate C code, do not run C compiler
5777 $compile .= " -C";
5779 my $verbose = verbose_flag ('VALAC');
5780 my $silent = silent_flag ();
5781 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5783 $output_rules .=
5784 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5785 # Since the C files generated from the vala sources depend on the
5786 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5787 # those of the C files generated by the valac invocation below (this is
5788 # especially important on systems with sub-second timestamp resolution).
5789 # Thus we need to create the stamp file *before* invoking valac, and to
5790 # move it to its final location only after valac has been invoked.
5791 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5792 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5793 "\t${silent}mv -f \$\@-t \$\@\n";
5795 push_dist_common ($stampfile);
5797 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5798 }
5800 # Add output rules to invoke valac and create stamp file as a witness
5801 # to handle multiple outputs. This function is called after all source
5802 # file processing is done.
5803 sub lang_vala_finish ()
5804 {
5805 my ($self) = @_;
5807 foreach my $prog (keys %known_programs)
5808 {
5809 lang_vala_finish_target ($self, $prog);
5810 }
5812 while (my ($name) = each %known_libraries)
5813 {
5814 lang_vala_finish_target ($self, $name);
5815 }
5816 }
5818 # The built .c files should be cleaned only on maintainer-clean
5819 # as the .c files are distributed. This function is called for each
5820 # .vala source file.
5821 sub lang_vala_target_hook
5822 {
5823 my ($self, $aggregate, $output, $input, %transform) = @_;
5825 $clean_files{$output} = MAINTAINER_CLEAN;
5826 }
5828 # This is a yacc helper which is called whenever we have decided to
5829 # compile a yacc file.
5830 sub lang_yacc_target_hook
5831 {
5832 my ($self, $aggregate, $output, $input, %transform) = @_;
5834 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5835 # have to to generate special code.
5836 my $yflags_contains_minus_d = 0;
5838 foreach my $pfx ("", "${aggregate}_")
5839 {
5840 my $yflagsvar = var ("${pfx}YFLAGS");
5841 next unless $yflagsvar;
5842 # We cannot work reliably with conditionally-defined YFLAGS.
5843 if ($yflagsvar->has_conditional_contents)
5844 {
5845 msg_var ('unsupported', $yflagsvar,
5846 "'${pfx}YFLAGS' cannot have conditional contents");
5847 }
5848 else
5849 {
5850 $yflags_contains_minus_d = 1
5851 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5852 }
5853 }
5855 if ($yflags_contains_minus_d)
5856 {
5857 # Found a '-d' that applies to the compilation of this file.
5858 # Add a dependency for the generated header file, and arrange
5859 # for that file to be included in the distribution.
5861 # The extension of the output file (e.g., '.c' or '.cxx').
5862 # We'll need it to compute the name of the generated header file.
5863 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5865 # We know that a yacc input should be turned into either a C or
5866 # C++ output file. We depend on this fact (here and in yacc.am),
5867 # so check that it really holds.
5868 my $lang = $languages{$extension_map{$output_ext}};
5869 prog_error "invalid output name '$output' for yacc file '$input'"
5870 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5872 (my $header_ext = $output_ext) =~ s/c/h/g;
5873 # Quote $output_ext in the regexp, so that dots in it are taken
5874 # as literal dots, not as metacharacters.
5875 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5877 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5878 RULE_AUTOMAKE, TRUE,
5879 INTERNAL))
5880 {
5881 my $condstr = $cond->subst_string;
5882 $output_rules .=
5883 "$condstr${header}: $output\n"
5884 # Recover from removal of $header
5885 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5886 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5887 }
5888 # Distribute the generated file, unless its .y source was
5889 # listed in a nodist_ variable. (handle_source_transform()
5890 # will set DIST_SOURCE.)
5891 push_dist_common ($header)
5892 if $transform{'DIST_SOURCE'};
5894 # The GNU rules say that yacc/lex output files should be removed
5895 # by maintainer-clean. However, if the files are not distributed,
5896 # then we want to remove them with "make clean"; otherwise,
5897 # "make distcheck" will fail.
5898 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5899 }
5900 # See the comment above for $HEADER.
5901 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5902 }
5904 # This is a lex helper which is called whenever we have decided to
5905 # compile a lex file.
5906 sub lang_lex_target_hook
5907 {
5908 my ($self, $aggregate, $output, $input, %transform) = @_;
5909 # The GNU rules say that yacc/lex output files should be removed
5910 # by maintainer-clean. However, if the files are not distributed,
5911 # then we want to remove them with "make clean"; otherwise,
5912 # "make distcheck" will fail.
5913 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5914 }
5916 # This is a helper for both lex and yacc.
5917 sub yacc_lex_finish_helper ()
5918 {
5919 return if defined $language_scratch{'lex-yacc-done'};
5920 $language_scratch{'lex-yacc-done'} = 1;
5922 # FIXME: for now, no line number.
5923 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5924 define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5925 }
5927 sub lang_yacc_finish ()
5928 {
5929 return if defined $language_scratch{'yacc-done'};
5930 $language_scratch{'yacc-done'} = 1;
5932 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5934 yacc_lex_finish_helper;
5935 }
5938 sub lang_lex_finish ()
5939 {
5940 return if defined $language_scratch{'lex-done'};
5941 $language_scratch{'lex-done'} = 1;
5943 yacc_lex_finish_helper;
5944 }
5947 # Given a hash table of linker names, pick the name that has the most
5948 # precedence. This is lame, but something has to have global
5949 # knowledge in order to eliminate the conflict. Add more linkers as
5950 # required.
5951 sub resolve_linker
5952 {
5953 my (%linkers) = @_;
5955 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5956 {
5957 return $l if defined $linkers{$l};
5958 }
5959 return 'LINK';
5960 }
5962 # Called to indicate that an extension was used.
5963 sub saw_extension
5964 {
5965 my ($ext) = @_;
5966 $extension_seen{$ext} = 1;
5967 }
5969 # register_language (%ATTRIBUTE)
5970 # ------------------------------
5971 # Register a single language.
5972 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5973 sub register_language
5974 {
5975 my (%option) = @_;
5977 # Set the defaults.
5978 $option{'autodep'} = 'no'
5979 unless defined $option{'autodep'};
5980 $option{'linker'} = ''
5981 unless defined $option{'linker'};
5982 $option{'flags'} = []
5983 unless defined $option{'flags'};
5984 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5985 unless defined $option{'output_extensions'};
5986 $option{'nodist_specific'} = 0
5987 unless defined $option{'nodist_specific'};
5989 my $lang = new Automake::Language (%option);
5991 # Fill indexes.
5992 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5993 $languages{$lang->name} = $lang;
5994 my $link = $lang->linker;
5995 if ($link)
5996 {
5997 if (exists $link_languages{$link})
5998 {
5999 prog_error ("'$link' has different definitions in "
6000 . $lang->name . " and " . $link_languages{$link}->name)
6001 if $lang->link ne $link_languages{$link}->link;
6002 }
6003 else
6004 {
6005 $link_languages{$link} = $lang;
6006 }
6007 }
6009 # Update the pattern of known extensions.
6010 accept_extensions (@{$lang->extensions});
6012 # Update the suffix rules map.
6013 foreach my $suffix (@{$lang->extensions})
6014 {
6015 foreach my $dest ($lang->output_extensions->($suffix))
6016 {
6017 register_suffix_rule (INTERNAL, $suffix, $dest);
6018 }
6019 }
6020 }
6022 # derive_suffix ($EXT, $OBJ)
6023 # --------------------------
6024 # This function is used to find a path from a user-specified suffix $EXT
6025 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6026 sub derive_suffix
6027 {
6028 my ($source_ext, $obj) = @_;
6030 while (!$extension_map{$source_ext} && $source_ext ne $obj)
6031 {
6032 my $new_source_ext = next_in_suffix_chain ($source_ext, $obj);
6033 last if not defined $new_source_ext;
6034 $source_ext = $new_source_ext;
6035 }
6037 return $source_ext;
6038 }
6041 # Pretty-print something and append to '$output_rules'.
6042 sub pretty_print_rule
6043 {
6044 $output_rules .= makefile_wrap (shift, shift, @_);
6045 }
6048 ################################################################
6051 ## -------------------------------- ##
6052 ## Handling the conditional stack. ##
6053 ## -------------------------------- ##
6056 # $STRING
6057 # make_conditional_string ($NEGATE, $COND)
6058 # ----------------------------------------
6059 sub make_conditional_string
6060 {
6061 my ($negate, $cond) = @_;
6062 $cond = "${cond}_TRUE"
6063 unless $cond =~ /^TRUE|FALSE$/;
6064 $cond = Automake::Condition::conditional_negate ($cond)
6065 if $negate;
6066 return $cond;
6067 }
6070 my %_am_macro_for_cond =
6071 (
6072 AMDEP => "one of the compiler tests\n"
6073 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6074 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6075 am__fastdepCC => 'AC_PROG_CC',
6076 am__fastdepCCAS => 'AM_PROG_AS',
6077 am__fastdepCXX => 'AC_PROG_CXX',
6078 am__fastdepGCJ => 'AM_PROG_GCJ',
6079 am__fastdepOBJC => 'AC_PROG_OBJC',
6080 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6081 am__fastdepUPC => 'AM_PROG_UPC'
6082 );
6084 # $COND
6085 # cond_stack_if ($NEGATE, $COND, $WHERE)
6086 # --------------------------------------
6087 sub cond_stack_if
6088 {
6089 my ($negate, $cond, $where) = @_;
6091 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6092 {
6093 my $text = "$cond does not appear in AM_CONDITIONAL";
6094 my $scope = US_LOCAL;
6095 if (exists $_am_macro_for_cond{$cond})
6096 {
6097 my $mac = $_am_macro_for_cond{$cond};
6098 $text .= "\n The usual way to define '$cond' is to add ";
6099 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6100 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6101 # These warnings appear in Automake files (depend2.am),
6102 # so there is no need to display them more than once:
6103 $scope = US_GLOBAL;
6104 }
6105 error $where, $text, uniq_scope => $scope;
6106 }
6108 push (@cond_stack, make_conditional_string ($negate, $cond));
6110 return new Automake::Condition (@cond_stack);
6111 }
6114 # $COND
6115 # cond_stack_else ($NEGATE, $COND, $WHERE)
6116 # ----------------------------------------
6117 sub cond_stack_else
6118 {
6119 my ($negate, $cond, $where) = @_;
6121 if (! @cond_stack)
6122 {
6123 error $where, "else without if";
6124 return FALSE;
6125 }
6127 $cond_stack[$#cond_stack] =
6128 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6130 # If $COND is given, check against it.
6131 if (defined $cond)
6132 {
6133 $cond = make_conditional_string ($negate, $cond);
6135 error ($where, "else reminder ($negate$cond) incompatible with "
6136 . "current conditional: $cond_stack[$#cond_stack]")
6137 if $cond_stack[$#cond_stack] ne $cond;
6138 }
6140 return new Automake::Condition (@cond_stack);
6141 }
6144 # $COND
6145 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6146 # -----------------------------------------
6147 sub cond_stack_endif
6148 {
6149 my ($negate, $cond, $where) = @_;
6150 my $old_cond;
6152 if (! @cond_stack)
6153 {
6154 error $where, "endif without if";
6155 return TRUE;
6156 }
6158 # If $COND is given, check against it.
6159 if (defined $cond)
6160 {
6161 $cond = make_conditional_string ($negate, $cond);
6163 error ($where, "endif reminder ($negate$cond) incompatible with "
6164 . "current conditional: $cond_stack[$#cond_stack]")
6165 if $cond_stack[$#cond_stack] ne $cond;
6166 }
6168 pop @cond_stack;
6170 return new Automake::Condition (@cond_stack);
6171 }
6177 ## ------------------------ ##
6178 ## Handling the variables. ##
6179 ## ------------------------ ##
6182 # define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6183 # ----------------------------------------------------
6184 # Like define_variable, but the value is a list, and the variable may
6185 # be defined conditionally. The second argument is the condition
6186 # under which the value should be defined; this should be the empty
6187 # string to define the variable unconditionally. The third argument
6188 # is a list holding the values to use for the variable. The value is
6189 # pretty printed in the output file.
6190 sub define_pretty_variable
6191 {
6192 my ($var, $cond, $where, @value) = @_;
6194 if (! vardef ($var, $cond))
6195 {
6196 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6197 '', $where, VAR_PRETTY);
6198 rvar ($var)->rdef ($cond)->set_seen;
6199 }
6200 }
6203 # define_variable ($VAR, $VALUE, $WHERE)
6204 # --------------------------------------
6205 # Define a new Automake Makefile variable VAR to VALUE, but only if
6206 # not already defined.
6207 sub define_variable
6208 {
6209 my ($var, $value, $where) = @_;
6210 define_pretty_variable ($var, TRUE, $where, $value);
6211 }
6214 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6215 # ------------------------------------------------------------
6216 # Define the $VAR which content is the list of file names composed of
6217 # a @BASENAME and the $EXTENSION.
6218 sub define_files_variable ($\@$$)
6219 {
6220 my ($var, $basename, $extension, $where) = @_;
6221 define_variable ($var,
6222 join (' ', map { "$_.$extension" } @$basename),
6223 $where);
6224 }
6227 # Like define_variable, but define a variable to be the configure
6228 # substitution by the same name.
6229 sub define_configure_variable
6230 {
6231 my ($var) = @_;
6232 # Some variables we do not want to output. For instance it
6233 # would be a bad idea to output `U = @U@` when `@U@` can be
6234 # substituted as `\`.
6235 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6236 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst ($var),
6237 '', $configure_vars{$var}, $pretty);
6238 }
6241 # define_compiler_variable ($LANG)
6242 # --------------------------------
6243 # Define a compiler variable. We also handle defining the 'LT'
6244 # version of the command when using libtool.
6245 sub define_compiler_variable
6246 {
6247 my ($lang) = @_;
6249 my ($var, $value) = ($lang->compiler, $lang->compile);
6250 my $libtool_tag = '';
6251 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6252 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6253 define_variable ($var, $value, INTERNAL);
6254 if (var ('LIBTOOL'))
6255 {
6256 my $verbose = define_verbose_libtool ();
6257 define_variable ("LT$var",
6258 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS)"
6259 . " \$(LIBTOOLFLAGS) --mode=compile $value",
6260 INTERNAL);
6261 }
6262 define_verbose_tagvar ($lang->ccer || 'GEN');
6263 }
6266 sub define_linker_variable
6267 {
6268 my ($lang) = @_;
6270 my $libtool_tag = '';
6271 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6272 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6273 # CCLD = $(CC).
6274 define_variable ($lang->lder, $lang->ld, INTERNAL);
6275 # CCLINK = $(CCLD) blah blah...
6276 my $link = '';
6277 if (var ('LIBTOOL'))
6278 {
6279 my $verbose = define_verbose_libtool ();
6280 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6281 . "\$(LIBTOOLFLAGS) --mode=link ";
6282 }
6283 define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6284 define_variable ($lang->compiler, $lang, INTERNAL);
6285 define_verbose_tagvar ($lang->lder || 'GEN');
6286 }
6288 sub define_per_target_linker_variable
6289 {
6290 my ($linker, $target) = @_;
6292 # If the user wrote a custom link command, we don't define ours.
6293 return "${target}_LINK"
6294 if set_seen "${target}_LINK";
6296 my $xlink = $linker ? $linker : 'LINK';
6298 my $lang = $link_languages{$xlink};
6299 prog_error "Unknown language for linker variable '$xlink'"
6300 unless $lang;
6302 my $link_command = $lang->link;
6303 if (var 'LIBTOOL')
6304 {
6305 my $libtool_tag = '';
6306 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6307 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6309 my $verbose = define_verbose_libtool ();
6310 $link_command =
6311 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6312 . "--mode=link " . $link_command;
6313 }
6315 # Rewrite each occurrence of 'AM_$flag' in the link
6316 # command into '${derived}_$flag' if it exists.
6317 my $orig_command = $link_command;
6318 my @flags = (@{$lang->flags}, 'LDFLAGS');
6319 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6320 for my $flag (@flags)
6321 {
6322 my $val = "${target}_$flag";
6323 $link_command =~ s/\(AM_$flag\)/\($val\)/
6324 if set_seen ($val);
6325 }
6327 # If the computed command is the same as the generic command, use
6328 # the command linker variable.
6329 return ($lang->linker, $lang->lder)
6330 if $link_command eq $orig_command;
6332 define_variable ("${target}_LINK", $link_command, INTERNAL);
6333 return ("${target}_LINK", $lang->lder);
6334 }
6336 ################################################################
6338 # check_trailing_slash ($WHERE, $LINE)
6339 # ------------------------------------
6340 # Return 1 iff $LINE ends with a slash.
6341 # Might modify $LINE.
6342 sub check_trailing_slash ($\$)
6343 {
6344 my ($where, $line) = @_;
6346 # Ignore '##' lines.
6347 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6349 # Catch and fix a common error.
6350 msg "syntax", $where, "whitespace following trailing backslash"
6351 if $$line =~ s/\\\s+\n$/\\\n/;
6353 return $$line =~ /\\$/;
6354 }
6357 # read_am_file ($AMFILE, $WHERE, $RELDIR)
6358 # ---------------------------------------
6359 # Read $AMFILE file name which is located in $RELDIR, and set up
6360 # global variables resetted by '&generate_makefile'. Simultaneously
6361 # copy lines from $AMFILE into '$output_trailer', or define variables
6362 # as appropriate.
6363 #
6364 # NOTE: We put rules in the trailer section. We want user rules to
6365 # come after our generated stuff.
6366 sub read_am_file
6367 {
6368 my ($amfile, $where, $reldir) = @_;
6369 my $canon_reldir = &canonicalize ($reldir);
6371 my $am_file = new Automake::XFile ("< $amfile");
6372 verb "reading $amfile";
6374 # Keep track of the youngest output dependency.
6375 my $mtime = mtime $amfile;
6376 $output_deps_greatest_timestamp = $mtime
6377 if $mtime > $output_deps_greatest_timestamp;
6379 my $spacing = '';
6380 my $comment = '';
6381 my $blank = 0;
6382 my $saw_bk = 0;
6383 my $var_look = VAR_ASIS;
6385 use constant IN_VAR_DEF => 0;
6386 use constant IN_RULE_DEF => 1;
6387 use constant IN_COMMENT => 2;
6388 my $prev_state = IN_RULE_DEF;
6390 while ($_ = $am_file->getline)
6391 {
6392 $where->set ("$amfile:$.");
6393 if (/$IGNORE_PATTERN/o)
6394 {
6395 # Merely delete comments beginning with two hashes.
6396 }
6397 elsif (/$WHITE_PATTERN/o)
6398 {
6399 error $where, "blank line following trailing backslash"
6400 if $saw_bk;
6401 # Stick a single white line before the incoming macro or rule.
6402 $spacing = "\n";
6403 $blank = 1;
6404 # Flush all comments seen so far.
6405 if ($comment ne '')
6406 {
6407 $output_vars .= $comment;
6408 $comment = '';
6409 }
6410 }
6411 elsif (/$COMMENT_PATTERN/o)
6412 {
6413 # Stick comments before the incoming macro or rule. Make
6414 # sure a blank line precedes the first block of comments.
6415 $spacing = "\n" unless $blank;
6416 $blank = 1;
6417 $comment .= $spacing . $_;
6418 $spacing = '';
6419 $prev_state = IN_COMMENT;
6420 }
6421 else
6422 {
6423 last;
6424 }
6425 $saw_bk = check_trailing_slash ($where, $_);
6426 }
6428 # We save the conditional stack on entry, and then check to make
6429 # sure it is the same on exit. This lets us conditionally include
6430 # other files.
6431 my @saved_cond_stack = @cond_stack;
6432 my $cond = new Automake::Condition (@cond_stack);
6434 my $last_var_name = '';
6435 my $last_var_type = '';
6436 my $last_var_value = '';
6437 my $last_where;
6438 # FIXME: shouldn't use $_ in this loop; it is too big.
6439 while ($_)
6440 {
6441 $where->set ("$amfile:$.");
6443 # Make sure the line is \n-terminated.
6444 chomp;
6445 $_ .= "\n";
6447 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6448 # used by users. @MAINT@ is an anachronism now.
6449 $_ =~ s/\@MAINT\@//g
6450 unless $seen_maint_mode;
6452 my $new_saw_bk = check_trailing_slash ($where, $_);
6454 if ($reldir eq '.')
6455 {
6456 # If present, eat the following '_' or '/', converting
6457 # "%reldir%/foo" and "%canon_reldir%_foo" into plain "foo"
6458 # when $reldir is '.'.
6459 $_ =~ s,%(D|reldir)%/,,g;
6460 $_ =~ s,%(C|canon_reldir)%_,,g;
6461 }
6462 $_ =~ s/%(D|reldir)%/${reldir}/g;
6463 $_ =~ s/%(C|canon_reldir)%/${canon_reldir}/g;
6465 if (/$IGNORE_PATTERN/o)
6466 {
6467 # Merely delete comments beginning with two hashes.
6469 # Keep any backslash from the previous line.
6470 $new_saw_bk = $saw_bk;
6471 }
6472 elsif (/$WHITE_PATTERN/o)
6473 {
6474 # Stick a single white line before the incoming macro or rule.
6475 $spacing = "\n";
6476 error $where, "blank line following trailing backslash"
6477 if $saw_bk;
6478 }
6479 elsif (/$COMMENT_PATTERN/o)
6480 {
6481 error $where, "comment following trailing backslash"
6482 if $saw_bk && $prev_state != IN_COMMENT;
6484 # Stick comments before the incoming macro or rule.
6485 $comment .= $spacing . $_;
6486 $spacing = '';
6487 $prev_state = IN_COMMENT;
6488 }
6489 elsif ($saw_bk)
6490 {
6491 if ($prev_state == IN_RULE_DEF)
6492 {
6493 my $cond = new Automake::Condition @cond_stack;
6494 $output_trailer .= $cond->subst_string;
6495 $output_trailer .= $_;
6496 }
6497 elsif ($prev_state == IN_COMMENT)
6498 {
6499 # If the line doesn't start with a '#', add it.
6500 # We do this because a continued comment like
6501 # # A = foo \
6502 # bar \
6503 # baz
6504 # is not portable. BSD make doesn't honor
6505 # escaped newlines in comments.
6506 s/^#?/#/;
6507 $comment .= $spacing . $_;
6508 }
6509 else # $prev_state == IN_VAR_DEF
6510 {
6511 $last_var_value .= ' '
6512 unless $last_var_value =~ /\s$/;
6513 $last_var_value .= $_;
6515 if (!/\\$/)
6516 {
6517 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6518 $last_var_type, $cond,
6519 $last_var_value, $comment,
6520 $last_where, VAR_ASIS)
6521 if $cond != FALSE;
6522 $comment = $spacing = '';
6523 }
6524 }
6525 }
6527 elsif (/$IF_PATTERN/o)
6528 {
6529 $cond = cond_stack_if ($1, $2, $where);
6530 }
6531 elsif (/$ELSE_PATTERN/o)
6532 {
6533 $cond = cond_stack_else ($1, $2, $where);
6534 }
6535 elsif (/$ENDIF_PATTERN/o)
6536 {
6537 $cond = cond_stack_endif ($1, $2, $where);
6538 }
6540 elsif (/$RULE_PATTERN/o)
6541 {
6542 # Found a rule.
6543 $prev_state = IN_RULE_DEF;
6545 # For now we have to output all definitions of user rules
6546 # and can't diagnose duplicates (see the comment in
6547 # Automake::Rule::define). So we go on and ignore the return value.
6548 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6550 check_variable_expansions ($_, $where);
6552 $output_trailer .= $comment . $spacing;
6553 my $cond = new Automake::Condition @cond_stack;
6554 $output_trailer .= $cond->subst_string;
6555 $output_trailer .= $_;
6556 $comment = $spacing = '';
6557 }
6558 elsif (/$ASSIGNMENT_PATTERN/o)
6559 {
6560 # Found a macro definition.
6561 $prev_state = IN_VAR_DEF;
6562 $last_var_name = $1;
6563 $last_var_type = $2;
6564 $last_var_value = $3;
6565 $last_where = $where->clone;
6566 if ($3 ne '' && substr ($3, -1) eq "\\")
6567 {
6568 # We preserve the '\' because otherwise the long lines
6569 # that are generated will be truncated by broken
6570 # 'sed's.
6571 $last_var_value = $3 . "\n";
6572 }
6573 # Normally we try to output variable definitions in the
6574 # same format they were input. However, POSIX compliant
6575 # systems are not required to support lines longer than
6576 # 2048 bytes (most notably, some sed implementation are
6577 # limited to 4000 bytes, and sed is used by config.status
6578 # to rewrite Makefile.in into Makefile). Moreover nobody
6579 # would really write such long lines by hand since it is
6580 # hardly maintainable. So if a line is longer that 1000
6581 # bytes (an arbitrary limit), assume it has been
6582 # automatically generated by some tools, and flatten the
6583 # variable definition. Otherwise, keep the variable as it
6584 # as been input.
6585 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6587 if (!/\\$/)
6588 {
6589 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6590 $last_var_type, $cond,
6591 $last_var_value, $comment,
6592 $last_where, $var_look)
6593 if $cond != FALSE;
6594 $comment = $spacing = '';
6595 $var_look = VAR_ASIS;
6596 }
6597 }
6598 elsif (/$INCLUDE_PATTERN/o)
6599 {
6600 my $path = $1;
6602 if ($path =~ s/^\$\(top_srcdir\)\///)
6603 {
6604 push (@include_stack, "\$\(top_srcdir\)/$path");
6605 # Distribute any included file.
6607 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6608 # otherwise OSF make will implicitly copy the included
6609 # file in the build tree during "make distdir" to satisfy
6610 # the dependency.
6611 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6612 push_dist_common ("\$\(top_srcdir\)/$path");
6613 }
6614 else
6615 {
6616 $path =~ s/\$\(srcdir\)\///;
6617 push (@include_stack, "\$\(srcdir\)/$path");
6618 # Always use the $(srcdir) prefix in DIST_COMMON,
6619 # otherwise OSF make will implicitly copy the included
6620 # file in the build tree during "make distdir" to satisfy
6621 # the dependency.
6622 # (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
6623 push_dist_common ("\$\(srcdir\)/$path");
6624 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6625 }
6626 my $new_reldir = File::Spec->abs2rel ($path, $relative_dir);
6627 $new_reldir = '.' if $new_reldir !~ s,/[^/]*$,,;
6628 $where->push_context ("'$path' included from here");
6629 read_am_file ($path, $where, $new_reldir);
6630 $where->pop_context;
6631 }
6632 else
6633 {
6634 # This isn't an error; it is probably a continued rule.
6635 # In fact, this is what we assume.
6636 $prev_state = IN_RULE_DEF;
6637 check_variable_expansions ($_, $where);
6638 $output_trailer .= $comment . $spacing;
6639 my $cond = new Automake::Condition @cond_stack;
6640 $output_trailer .= $cond->subst_string;
6641 $output_trailer .= $_;
6642 $comment = $spacing = '';
6643 error $where, "'#' comment at start of rule is unportable"
6644 if $_ =~ /^\t\s*\#/;
6645 }
6647 $saw_bk = $new_saw_bk;
6648 $_ = $am_file->getline;
6649 }
6651 $output_trailer .= $comment;
6653 error ($where, "trailing backslash on last line")
6654 if $saw_bk;
6656 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6657 : "too many conditionals closed in include file"))
6658 if "@saved_cond_stack" ne "@cond_stack";
6659 }
6662 # A helper for read_main_am_file which initializes configure variables
6663 # and variables from header-vars.am.
6664 sub define_standard_variables ()
6665 {
6666 my $saved_output_vars = $output_vars;
6667 my ($comments, undef, $rules) =
6668 file_contents_internal (1, "$libdir/am/header-vars.am",
6669 new Automake::Location);
6671 foreach my $var (sort keys %configure_vars)
6672 {
6673 define_configure_variable ($var);
6674 }
6676 $output_vars .= $comments . $rules;
6677 }
6680 # read_main_am_file ($MAKEFILE_AM, $MAKEFILE_IN)
6681 # ----------------------------------------------
6682 sub read_main_am_file
6683 {
6684 my ($amfile, $infile) = @_;
6686 # This supports the strange variable tricks we are about to play.
6687 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6688 if (scalar (variables) > 0);
6690 # Generate copyright header for generated Makefile.in.
6691 # We do discard the output of predefined variables, handled below.
6692 $output_vars = ("# " . basename ($infile) . " generated by automake "
6693 . $VERSION . " from " . basename ($amfile) . ".\n");
6694 $output_vars .= '# ' . subst ('configure_input') . "\n";
6695 $output_vars .= $gen_copyright;
6697 # We want to predefine as many variables as possible. This lets
6698 # the user set them with '+=' in Makefile.am.
6699 define_standard_variables;
6701 # Read user file, which might override some of our values.
6702 read_am_file ($amfile, new Automake::Location, '.');
6703 }
6707 ################################################################
6709 # $STRING
6710 # flatten ($ORIGINAL_STRING)
6711 # --------------------------
6712 sub flatten
6713 {
6714 $_ = shift;
6716 s/\\\n//somg;
6717 s/\s+/ /g;
6718 s/^ //;
6719 s/ $//;
6721 return $_;
6722 }
6725 # transform_token ($TOKEN, \%PAIRS, $KEY)
6726 # ---------------------------------------
6727 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6728 # (which should be ?KEY? or any of the special %% requests)..
6729 sub transform_token ($\%$)
6730 {
6731 my ($token, $transform, $key) = @_;
6732 my $res = $transform->{$key};
6733 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6734 return $res;
6735 }
6738 # transform ($TOKEN, \%PAIRS)
6739 # ---------------------------
6740 # If ($TOKEN, $VAL) is in %PAIRS:
6741 # - replaces %KEY% with $VAL,
6742 # - enables/disables ?KEY? and ?!KEY?,
6743 # - replaces %?KEY% with TRUE or FALSE.
6744 sub transform ($\%)
6745 {
6746 my ($token, $transform) = @_;
6748 # %KEY%.
6749 # Must be before the following pattern to exclude the case
6750 # when there is neither IFTRUE nor IFFALSE.
6751 if ($token =~ /^%([\w\-]+)%$/)
6752 {
6753 return transform_token ($token, %$transform, $1);
6754 }
6755 # %?KEY%.
6756 elsif ($token =~ /^%\?([\w\-]+)%$/)
6757 {
6758 return transform_token ($token, %$transform, $1) ? 'TRUE' : 'FALSE';
6759 }
6760 # ?KEY? and ?!KEY?.
6761 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6762 {
6763 my $neg = ($1 eq '!') ? 1 : 0;
6764 my $val = transform_token ($token, %$transform, $2);
6765 return (!!$val == $neg) ? '##%' : '';
6766 }
6767 else
6768 {
6769 prog_error "Unknown request format: $token";
6770 }
6771 }
6773 # $TEXT
6774 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6775 # -----------------------------------------
6776 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6777 # No extra parsing or post-processing is done (i.e., recognition of
6778 # rules declaration or of make variables definitions).
6779 sub preprocess_file
6780 {
6781 my ($file, %transform) = @_;
6783 # Complete %transform with global options.
6784 # Note that %transform goes last, so it overrides global options.
6785 %transform = ( 'MAINTAINER-MODE'
6786 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6788 'XZ' => !! option 'dist-xz',
6789 'LZIP' => !! option 'dist-lzip',
6790 'BZIP2' => !! option 'dist-bzip2',
6791 'COMPRESS' => !! option 'dist-tarZ',
6792 'GZIP' => ! option 'no-dist-gzip',
6793 'SHAR' => !! option 'dist-shar',
6794 'ZIP' => !! option 'dist-zip',
6796 'INSTALL-INFO' => ! option 'no-installinfo',
6797 'INSTALL-MAN' => ! option 'no-installman',
6798 'CK-NEWS' => !! option 'check-news',
6800 'SUBDIRS' => !! var ('SUBDIRS'),
6801 'TOPDIR_P' => $relative_dir eq '.',
6803 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6804 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6805 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6807 'LIBTOOL' => !! var ('LIBTOOL'),
6808 'NONLIBTOOL' => 1,
6809 %transform);
6811 if (! defined ($_ = $am_file_cache{$file}))
6812 {
6813 verb "reading $file";
6814 # Swallow the whole file.
6815 my $fc_file = new Automake::XFile "< $file";
6816 my $saved_dollar_slash = $/;
6817 undef $/;
6818 $_ = $fc_file->getline;
6819 $/ = $saved_dollar_slash;
6820 $fc_file->close;
6821 # Remove ##-comments.
6822 # Besides we don't need more than two consecutive new-lines.
6823 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6824 # Remember the contents of the just-read file.
6825 $am_file_cache{$file} = $_;
6826 }
6828 # Substitute Automake template tokens.
6829 s/(?: % \?? [\w\-]+ %
6830 | \? !? [\w\-]+ \?
6831 )/transform($&, %transform)/gex;
6832 # transform() may have added some ##%-comments to strip.
6833 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6834 # ####### and do not remove the latter.)
6835 s/^[ \t]*(?:##%)+.*\n//gm;
6837 return $_;
6838 }
6841 # @PARAGRAPHS
6842 # make_paragraphs ($MAKEFILE, [%TRANSFORM])
6843 # -----------------------------------------
6844 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6845 # paragraphs.
6846 sub make_paragraphs
6847 {
6848 my ($file, %transform) = @_;
6849 $transform{FIRST} = !$transformed_files{$file};
6850 $transformed_files{$file} = 1;
6852 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6853 my @res;
6855 while (defined ($_ = shift @lines))
6856 {
6857 my $paragraph = $_;
6858 # If we are a rule, eat as long as we start with a tab.
6859 if (/$RULE_PATTERN/smo)
6860 {
6861 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6862 {
6863 $paragraph .= "\n$_";
6864 }
6865 unshift (@lines, $_);
6866 }
6868 # If we are a comments, eat as much comments as you can.
6869 elsif (/$COMMENT_PATTERN/smo)
6870 {
6871 while (defined ($_ = shift @lines)
6872 && $_ =~ /$COMMENT_PATTERN/smo)
6873 {
6874 $paragraph .= "\n$_";
6875 }
6876 unshift (@lines, $_);
6877 }
6879 push @res, $paragraph;
6880 }
6882 return @res;
6883 }
6887 # ($COMMENT, $VARIABLES, $RULES)
6888 # file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6889 # ------------------------------------------------------------
6890 # Return contents of a file from $libdir/am, automatically skipping
6891 # macros or rules which are already known. $IS_AM iff the caller is
6892 # reading an Automake file (as opposed to the user's Makefile.am).
6893 sub file_contents_internal
6894 {
6895 my ($is_am, $file, $where, %transform) = @_;
6897 $where->set ($file);
6899 my $result_vars = '';
6900 my $result_rules = '';
6901 my $comment = '';
6902 my $spacing = '';
6904 # The following flags are used to track rules spanning across
6905 # multiple paragraphs.
6906 my $is_rule = 0; # 1 if we are processing a rule.
6907 my $discard_rule = 0; # 1 if the current rule should not be output.
6909 # We save the conditional stack on entry, and then check to make
6910 # sure it is the same on exit. This lets us conditionally include
6911 # other files.
6912 my @saved_cond_stack = @cond_stack;
6913 my $cond = new Automake::Condition (@cond_stack);
6915 foreach (make_paragraphs ($file, %transform))
6916 {
6917 # FIXME: no line number available.
6918 $where->set ($file);
6920 # Sanity checks.
6921 error $where, "blank line following trailing backslash:\n$_"
6922 if /\\$/;
6923 error $where, "comment following trailing backslash:\n$_"
6924 if /\\#/;
6926 if (/^$/)
6927 {
6928 $is_rule = 0;
6929 # Stick empty line before the incoming macro or rule.
6930 $spacing = "\n";
6931 }
6932 elsif (/$COMMENT_PATTERN/mso)
6933 {
6934 $is_rule = 0;
6935 # Stick comments before the incoming macro or rule.
6936 $comment = "$_\n";
6937 }
6939 # Handle inclusion of other files.
6940 elsif (/$INCLUDE_PATTERN/o)
6941 {
6942 if ($cond != FALSE)
6943 {
6944 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6945 $where->push_context ("'$file' included from here");
6946 # N-ary '.=' fails.
6947 my ($com, $vars, $rules)
6948 = file_contents_internal ($is_am, $file, $where, %transform);
6949 $where->pop_context;
6950 $comment .= $com;
6951 $result_vars .= $vars;
6952 $result_rules .= $rules;
6953 }
6954 }
6956 # Handling the conditionals.
6957 elsif (/$IF_PATTERN/o)
6958 {
6959 $cond = cond_stack_if ($1, $2, $file);
6960 }
6961 elsif (/$ELSE_PATTERN/o)
6962 {
6963 $cond = cond_stack_else ($1, $2, $file);
6964 }
6965 elsif (/$ENDIF_PATTERN/o)
6966 {
6967 $cond = cond_stack_endif ($1, $2, $file);
6968 }
6970 # Handling rules.
6971 elsif (/$RULE_PATTERN/mso)
6972 {
6973 $is_rule = 1;
6974 $discard_rule = 0;
6975 # Separate relationship from optional actions: the first
6976 # `new-line tab" not preceded by backslash (continuation
6977 # line).
6978 my $paragraph = $_;
6979 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6980 my ($relationship, $actions) = ($1, $2 || '');
6982 # Separate targets from dependencies: the first colon.
6983 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6984 my ($targets, $dependencies) = ($1, $2);
6985 # Remove the escaped new lines.
6986 # I don't know why, but I have to use a tmp $flat_deps.
6987 my $flat_deps = flatten ($dependencies);
6988 my @deps = split (' ', $flat_deps);
6990 foreach (split (' ', $targets))
6991 {
6992 # FIXME: 1. We are not robust to people defining several targets
6993 # at once, only some of them being in %dependencies. The
6994 # actions from the targets in %dependencies are usually generated
6995 # from the content of %actions, but if some targets in $targets
6996 # are not in %dependencies the ELSE branch will output
6997 # a rule for all $targets (i.e. the targets which are both
6998 # in %dependencies and $targets will have two rules).
7000 # FIXME: 2. The logic here is not able to output a
7001 # multi-paragraph rule several time (e.g. for each condition
7002 # it is defined for) because it only knows the first paragraph.
7004 # FIXME: 3. We are not robust to people defining a subset
7005 # of a previously defined "multiple-target" rule. E.g.
7006 # 'foo:' after 'foo bar:'.
7008 # Output only if not in FALSE.
7009 if (defined $dependencies{$_} && $cond != FALSE)
7010 {
7011 depend ($_, @deps);
7012 register_action ($_, $actions);
7013 }
7014 else
7015 {
7016 # Free-lance dependency. Output the rule for all the
7017 # targets instead of one by one.
7018 my @undefined_conds =
7019 Automake::Rule::define ($targets, $file,
7020 $is_am ? RULE_AUTOMAKE : RULE_USER,
7021 $cond, $where);
7022 for my $undefined_cond (@undefined_conds)
7023 {
7024 my $condparagraph = $paragraph;
7025 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7026 $result_rules .= "$spacing$comment$condparagraph\n";
7027 }
7028 if (scalar @undefined_conds == 0)
7029 {
7030 # Remember to discard next paragraphs
7031 # if they belong to this rule.
7032 # (but see also FIXME: #2 above.)
7033 $discard_rule = 1;
7034 }
7035 $comment = $spacing = '';
7036 last;
7037 }
7038 }
7039 }
7041 elsif (/$ASSIGNMENT_PATTERN/mso)
7042 {
7043 my ($var, $type, $val) = ($1, $2, $3);
7044 error $where, "variable '$var' with trailing backslash"
7045 if /\\$/;
7047 $is_rule = 0;
7049 Automake::Variable::define ($var,
7050 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7051 $type, $cond, $val, $comment, $where,
7052 VAR_ASIS)
7053 if $cond != FALSE;
7055 $comment = $spacing = '';
7056 }
7057 else
7058 {
7059 # This isn't an error; it is probably some tokens which
7060 # configure is supposed to replace, such as '@SET-MAKE@',
7061 # or some part of a rule cut by an if/endif.
7062 if (! $cond->false && ! ($is_rule && $discard_rule))
7063 {
7064 s/^/$cond->subst_string/gme;
7065 $result_rules .= "$spacing$comment$_\n";
7066 }
7067 $comment = $spacing = '';
7068 }
7069 }
7071 error ($where, @cond_stack ?
7072 "unterminated conditionals: @cond_stack" :
7073 "too many conditionals closed in include file")
7074 if "@saved_cond_stack" ne "@cond_stack";
7076 return ($comment, $result_vars, $result_rules);
7077 }
7080 # $CONTENTS
7081 # file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7082 # -----------------------------------------------
7083 # Return contents of a file from $libdir/am, automatically skipping
7084 # macros or rules which are already known.
7085 sub file_contents
7086 {
7087 my ($basename, $where, %transform) = @_;
7088 my ($comments, $variables, $rules) =
7089 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7090 %transform);
7091 return "$comments$variables$rules";
7092 }
7095 # @PREFIX
7096 # am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7097 # ----------------------------------------------------
7098 # Find all variable prefixes that are used for install directories. A
7099 # prefix 'zar' qualifies iff:
7100 #
7101 # * 'zardir' is a variable.
7102 # * 'zar_PRIMARY' is a variable.
7103 #
7104 # As a side effect, it looks for misspellings. It is an error to have
7105 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7106 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7107 # of the same name (with "dir" appended) exists. For instance, if the
7108 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7109 # This is to provide a little extra flexibility in those cases which
7110 # need it.
7111 sub am_primary_prefixes
7112 {
7113 my ($primary, $can_dist, @prefixes) = @_;
7115 local $_;
7116 my %valid = map { $_ => 0 } @prefixes;
7117 $valid{'EXTRA'} = 0;
7118 foreach my $var (variables $primary)
7119 {
7120 # Automake is allowed to define variables that look like primaries
7121 # but which aren't. E.g. INSTALL_sh_DATA.
7122 # Autoconf can also define variables like INSTALL_DATA, so
7123 # ignore all configure variables (at least those which are not
7124 # redefined in Makefile.am).
7125 # FIXME: We should make sure that these variables are not
7126 # conditionally defined (or else adjust the condition below).
7127 my $def = $var->def (TRUE);
7128 next if $def && $def->owner != VAR_MAKEFILE;
7130 my $varname = $var->name;
7132 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7133 {
7134 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7135 if ($dist ne '' && ! $can_dist)
7136 {
7137 err_var ($var,
7138 "invalid variable '$varname': 'dist' is forbidden");
7139 }
7140 # Standard directories must be explicitly allowed.
7141 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7142 {
7143 err_var ($var,
7144 "'${X}dir' is not a legitimate directory " .
7145 "for '$primary'");
7146 }
7147 # A not explicitly valid directory is allowed if Xdir is defined.
7148 elsif (! defined $valid{$X} &&
7149 $var->requires_variables ("'$varname' is used", "${X}dir"))
7150 {
7151 # Nothing to do. Any error message has been output
7152 # by $var->requires_variables.
7153 }
7154 else
7155 {
7156 # Ensure all extended prefixes are actually used.
7157 $valid{"$base$dist$X"} = 1;
7158 }
7159 }
7160 else
7161 {
7162 prog_error "unexpected variable name: $varname";
7163 }
7164 }
7166 # Return only those which are actually defined.
7167 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7168 }
7171 # am_install_var (-OPTION..., file, HOW, where...)
7172 # ------------------------------------------------
7173 #
7174 # Handle 'where_HOW' variable magic. Does all lookups, generates
7175 # install code, and possibly generates code to define the primary
7176 # variable. The first argument is the name of the .am file to munge,
7177 # the second argument is the primary variable (e.g. HEADERS), and all
7178 # subsequent arguments are possible installation locations.
7179 #
7180 # Returns list of [$location, $value] pairs, where
7181 # $value's are the values in all where_HOW variable, and $location
7182 # there associated location (the place here their parent variables were
7183 # defined).
7184 #
7185 # FIXME: this should be rewritten to be cleaner. It should be broken
7186 # up into multiple functions.
7187 #
7188 sub am_install_var
7189 {
7190 my (@args) = @_;
7192 my $do_require = 1;
7193 my $can_dist = 0;
7194 my $default_dist = 0;
7195 while (@args)
7196 {
7197 if ($args[0] eq '-noextra')
7198 {
7199 $do_require = 0;
7200 }
7201 elsif ($args[0] eq '-candist')
7202 {
7203 $can_dist = 1;
7204 }
7205 elsif ($args[0] eq '-defaultdist')
7206 {
7207 $default_dist = 1;
7208 $can_dist = 1;
7209 }
7210 elsif ($args[0] !~ /^-/)
7211 {
7212 last;
7213 }
7214 shift (@args);
7215 }
7217 my ($file, $primary, @prefix) = @args;
7219 # Now that configure substitutions are allowed in where_HOW
7220 # variables, it is an error to actually define the primary. We
7221 # allow 'JAVA', as it is customarily used to mean the Java
7222 # interpreter. This is but one of several Java hacks. Similarly,
7223 # 'PYTHON' is customarily used to mean the Python interpreter.
7224 reject_var $primary, "'$primary' is an anachronism"
7225 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7227 # Get the prefixes which are valid and actually used.
7228 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7230 # If a primary includes a configure substitution, then the EXTRA_
7231 # form is required. Otherwise we can't properly do our job.
7232 my $require_extra;
7234 my @used = ();
7235 my @result = ();
7237 foreach my $X (@prefix)
7238 {
7239 my $nodir_name = $X;
7240 my $one_name = $X . '_' . $primary;
7241 my $one_var = var $one_name;
7243 my $strip_subdir = 1;
7244 # If subdir prefix should be preserved, do so.
7245 if ($nodir_name =~ /^nobase_/)
7246 {
7247 $strip_subdir = 0;
7248 $nodir_name =~ s/^nobase_//;
7249 }
7251 # If files should be distributed, do so.
7252 my $dist_p = 0;
7253 if ($can_dist)
7254 {
7255 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7256 || (! $default_dist && $nodir_name =~ /^dist_/));
7257 $nodir_name =~ s/^(dist|nodist)_//;
7258 }
7261 # Use the location of the currently processed variable.
7262 # We are not processing a particular condition, so pick the first
7263 # available.
7264 my $tmpcond = $one_var->conditions->one_cond;
7265 my $where = $one_var->rdef ($tmpcond)->location->clone;
7267 # Append actual contents of where_PRIMARY variable to
7268 # @result, skipping @substitutions@.
7269 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7270 {
7271 my ($loc, $value) = @$locvals;
7272 # Skip configure substitutions.
7273 if ($value =~ /^\@.*\@$/)
7274 {
7275 if ($nodir_name eq 'EXTRA')
7276 {
7277 error ($where,
7278 "'$one_name' contains configure substitution, "
7279 . "but shouldn't");
7280 }
7281 # Check here to make sure variables defined in
7282 # configure.ac do not imply that EXTRA_PRIMARY
7283 # must be defined.
7284 elsif (! defined $configure_vars{$one_name})
7285 {
7286 $require_extra = $one_name
7287 if $do_require;
7288 }
7289 }
7290 else
7291 {
7292 # Strip any $(EXEEXT) suffix the user might have added,
7293 # or this will confuse handle_source_transform() and
7294 # check_canonical_spelling().
7295 # We'll add $(EXEEXT) back later anyway.
7296 # Do it here rather than in handle_programs so the
7297 # uniquifying at the end of this function works.
7298 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7299 if $primary eq 'PROGRAMS';
7301 push (@result, $locvals);
7302 }
7303 }
7304 # A blatant hack: we rewrite each _PROGRAMS primary to include
7305 # EXEEXT.
7306 append_exeext { 1 } $one_name
7307 if $primary eq 'PROGRAMS';
7308 # "EXTRA" shouldn't be used when generating clean targets,
7309 # all, or install targets. We used to warn if EXTRA_FOO was
7310 # defined uselessly, but this was annoying.
7311 next
7312 if $nodir_name eq 'EXTRA';
7314 if ($nodir_name eq 'check')
7315 {
7316 push (@check, '$(' . $one_name . ')');
7317 }
7318 else
7319 {
7320 push (@used, '$(' . $one_name . ')');
7321 }
7323 # Is this to be installed?
7324 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7326 # If so, with install-exec? (or install-data?).
7327 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7329 my $check_options_p = $install_p && !! option 'std-options';
7331 # Use the location of the currently processed variable as context.
7332 $where->push_context ("while processing '$one_name'");
7334 # The variable containing all files to distribute.
7335 my $distvar = "\$($one_name)";
7336 $distvar = shadow_unconditionally ($one_name, $where)
7337 if ($dist_p && $one_var->has_conditional_contents);
7339 # Singular form of $PRIMARY.
7340 (my $one_primary = $primary) =~ s/S$//;
7341 $output_rules .= file_contents ($file, $where,
7342 PRIMARY => $primary,
7343 ONE_PRIMARY => $one_primary,
7344 DIR => $X,
7345 NDIR => $nodir_name,
7346 BASE => $strip_subdir,
7347 EXEC => $exec_p,
7348 INSTALL => $install_p,
7349 DIST => $dist_p,
7350 DISTVAR => $distvar,
7351 'CK-OPTS' => $check_options_p);
7352 }
7354 # The JAVA variable is used as the name of the Java interpreter.
7355 # The PYTHON variable is used as the name of the Python interpreter.
7356 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7357 {
7358 # Define it.
7359 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7360 $output_vars .= "\n";
7361 }
7363 err_var ($require_extra,
7364 "'$require_extra' contains configure substitution,\n"
7365 . "but 'EXTRA_$primary' not defined")
7366 if ($require_extra && ! var ('EXTRA_' . $primary));
7368 # Push here because PRIMARY might be configure time determined.
7369 push (@all, '$(' . $primary . ')')
7370 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7372 # Make the result unique. This lets the user use conditionals in
7373 # a natural way, but still lets us program lazily -- we don't have
7374 # to worry about handling a particular object more than once.
7375 # We will keep only one location per object.
7376 my %result = ();
7377 for my $pair (@result)
7378 {
7379 my ($loc, $val) = @$pair;
7380 $result{$val} = $loc;
7381 }
7382 my @l = sort keys %result;
7383 return map { [$result{$_}->clone, $_] } @l;
7384 }
7387 ################################################################
7389 # Each key in this hash is the name of a directory holding a
7390 # Makefile.in. These variables are local to 'is_make_dir'.
7391 my %make_dirs = ();
7392 my $make_dirs_set = 0;
7394 # is_make_dir ($DIRECTORY)
7395 # ------------------------
7396 sub is_make_dir
7397 {
7398 my ($dir) = @_;
7399 if (! $make_dirs_set)
7400 {
7401 foreach my $iter (@configure_input_files)
7402 {
7403 $make_dirs{dirname ($iter)} = 1;
7404 }
7405 # We also want to notice Makefile.in's.
7406 foreach my $iter (@other_input_files)
7407 {
7408 if ($iter =~ /Makefile\.in$/)
7409 {
7410 $make_dirs{dirname ($iter)} = 1;
7411 }
7412 }
7413 $make_dirs_set = 1;
7414 }
7415 return defined $make_dirs{$dir};
7416 }
7418 ################################################################
7420 # Find the aux dir. This should match the algorithm used by
7421 # ./configure. (See the Autoconf documentation for for
7422 # AC_CONFIG_AUX_DIR.)
7423 sub locate_aux_dir ()
7424 {
7425 if (! $config_aux_dir_set_in_configure_ac)
7426 {
7427 # The default auxiliary directory is the first
7428 # of ., .., or ../.. that contains install-sh.
7429 # Assume . if install-sh doesn't exist yet.
7430 for my $dir (qw (. .. ../..))
7431 {
7432 if (-f "$dir/install-sh")
7433 {
7434 $config_aux_dir = $dir;
7435 last;
7436 }
7437 }
7438 $config_aux_dir = '.' unless $config_aux_dir;
7439 }
7440 # Avoid unsightly '/.'s.
7441 $am_config_aux_dir =
7442 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7443 $am_config_aux_dir =~ s,/*$,,;
7444 }
7447 # push_required_file ($DIR, $FILE, $FULLFILE)
7448 # -------------------------------------------
7449 # Push the given file onto DIST_COMMON.
7450 sub push_required_file
7451 {
7452 my ($dir, $file, $fullfile) = @_;
7454 # If the file to be distributed is in the same directory of the
7455 # currently processed Makefile.am, then we want to distribute it
7456 # from this same Makefile.am.
7457 if ($dir eq $relative_dir)
7458 {
7459 push_dist_common ($file);
7460 }
7461 # This is needed to allow a construct in a non-top-level Makefile.am
7462 # to require a file in the build-aux directory (see at least the test
7463 # script 'test-driver-is-distributed.sh'). This is related to the
7464 # automake bug#9546. Note that the use of $config_aux_dir instead
7465 # of $am_config_aux_dir here is deliberate and necessary.
7466 elsif ($dir eq $config_aux_dir)
7467 {
7468 push_dist_common ("$am_config_aux_dir/$file");
7469 }
7470 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7471 # We probably need some refactoring of this function and its callers,
7472 # to have a more explicit and systematic handling of all the special
7473 # cases; but, since there are only two of them, this is low-priority
7474 # ATM.
7475 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7476 {
7477 # Avoid unsightly '/.'s.
7478 my $am_config_libobj_dir =
7479 '$(top_srcdir)' .
7480 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7481 $am_config_libobj_dir =~ s|/*$||;
7482 push_dist_common ("$am_config_libobj_dir/$file");
7483 }
7484 elsif ($relative_dir eq '.' && ! is_make_dir ($dir))
7485 {
7486 # If we are doing the topmost directory, and the file is in a
7487 # subdir which does not have a Makefile, then we distribute it
7488 # here.
7490 # If a required file is above the source tree, it is important
7491 # to prefix it with '$(srcdir)' so that no VPATH search is
7492 # performed. Otherwise problems occur with Make implementations
7493 # that rewrite and simplify rules whose dependencies are found in a
7494 # VPATH location. Here is an example with OSF1/Tru64 Make.
7495 #
7496 # % cat Makefile
7497 # VPATH = sub
7498 # distdir: ../a
7499 # echo ../a
7500 # % ls
7501 # Makefile a
7502 # % make
7503 # echo a
7504 # a
7505 #
7506 # Dependency '../a' was found in 'sub/../a', but this make
7507 # implementation simplified it as 'a'. (Note that the sub/
7508 # directory does not even exist.)
7509 #
7510 # This kind of VPATH rewriting seems hard to cancel. The
7511 # distdir.am hack against VPATH rewriting works only when no
7512 # simplification is done, i.e., for dependencies which are in
7513 # subdirectories, not in enclosing directories. Hence, in
7514 # the latter case we use a full path to make sure no VPATH
7515 # search occurs.
7516 $fullfile = '$(srcdir)/' . $fullfile
7517 if $dir =~ m,^\.\.(?:$|/),;
7519 push_dist_common ($fullfile);
7520 }
7521 else
7522 {
7523 prog_error "a Makefile in relative directory $relative_dir " .
7524 "can't add files in directory $dir to DIST_COMMON";
7525 }
7526 }
7529 # If a file name appears as a key in this hash, then it has already
7530 # been checked for. This allows us not to report the same error more
7531 # than once.
7532 my %required_file_not_found = ();
7534 # required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7535 # -------------------------------------------------------
7536 # Verify that the file must exist in $DIRECTORY, or install it.
7537 sub required_file_check_or_copy
7538 {
7539 my ($where, $dir, $file) = @_;
7541 my $fullfile = "$dir/$file";
7542 my $found_it = 0;
7543 my $dangling_sym = 0;
7545 if (-l $fullfile && ! -f $fullfile)
7546 {
7547 $dangling_sym = 1;
7548 }
7549 elsif (dir_has_case_matching_file ($dir, $file))
7550 {
7551 $found_it = 1;
7552 }
7554 # '--force-missing' only has an effect if '--add-missing' is
7555 # specified.
7556 return
7557 if $found_it && (! $add_missing || ! $force_missing);
7559 # If we've already looked for it, we're done. You might wonder why we
7560 # don't do this before searching for the file. If we do that, then
7561 # something like AC_OUTPUT([subdir/foo foo]) will fail to put 'foo.in'
7562 # into $(DIST_COMMON).
7563 if (! $found_it)
7564 {
7565 return if defined $required_file_not_found{$fullfile};
7566 $required_file_not_found{$fullfile} = 1;
7567 }
7568 if ($dangling_sym && $add_missing)
7569 {
7570 unlink ($fullfile);
7571 }
7573 my $trailer = '';
7574 my $trailer2 = '';
7575 my $suppress = 0;
7577 # Only install missing files according to our desired
7578 # strictness level.
7579 my $message = "required file '$fullfile' not found";
7580 if ($add_missing)
7581 {
7582 if (-f "$libdir/$file")
7583 {
7584 $suppress = 1;
7586 # Install the missing file. Symlink if we
7587 # can, copy if we must. Note: delete the file
7588 # first, in case it is a dangling symlink.
7589 $message = "installing '$fullfile'";
7591 # The license file should not be volatile.
7592 if ($file eq "COPYING")
7593 {
7594 $message .= " using GNU General Public License v3 file";
7595 $trailer2 = "\n Consider adding the COPYING file"
7596 . " to the version control system"
7597 . "\n for your code, to avoid questions"
7598 . " about which license your project uses";
7599 }
7601 # Windows Perl will hang if we try to delete a
7602 # file that doesn't exist.
7603 unlink ($fullfile) if -f $fullfile;
7604 if ($symlink_exists && ! $copy_missing)
7605 {
7606 if (! symlink ("$libdir/$file", $fullfile)
7607 || ! -e $fullfile)
7608 {
7609 $suppress = 0;
7610 $trailer = "; error while making link: $!";
7611 }
7612 }
7613 elsif (system ('cp', "$libdir/$file", $fullfile))
7614 {
7615 $suppress = 0;
7616 $trailer = "\n error while copying";
7617 }
7618 set_dir_cache_file ($dir, $file);
7619 }
7620 }
7621 else
7622 {
7623 $trailer = "\n 'automake --add-missing' can install '$file'"
7624 if -f "$libdir/$file";
7625 }
7627 # If --force-missing was specified, and we have
7628 # actually found the file, then do nothing.
7629 return
7630 if $found_it && $force_missing;
7632 # If we couldn't install the file, but it is a target in
7633 # the Makefile, don't print anything. This allows files
7634 # like README, AUTHORS, or THANKS to be generated.
7635 return
7636 if !$suppress && rule $file;
7638 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7639 }
7642 # require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7643 # ---------------------------------------------------------------------
7644 # Verify that the file must exist in $DIRECTORY, or install it.
7645 # $MYSTRICT is the strictness level at which this file becomes required.
7646 # Worker threads may queue up the action to be serialized by the master,
7647 # if $QUEUE is true
7648 sub require_file_internal
7649 {
7650 my ($where, $mystrict, $dir, $queue, @files) = @_;
7652 return
7653 unless $strictness >= $mystrict;
7655 foreach my $file (@files)
7656 {
7657 push_required_file ($dir, $file, "$dir/$file");
7658 if ($queue)
7659 {
7660 queue_required_file_check_or_copy ($required_conf_file_queue,
7661 QUEUE_CONF_FILE, $relative_dir,
7662 $where, $mystrict, @files);
7663 }
7664 else
7665 {
7666 required_file_check_or_copy ($where, $dir, $file);
7667 }
7668 }
7669 }
7671 # require_file ($WHERE, $MYSTRICT, @FILES)
7672 # ----------------------------------------
7673 sub require_file
7674 {
7675 my ($where, $mystrict, @files) = @_;
7676 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7677 }
7679 # require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7680 # ----------------------------------------------------------
7681 sub require_file_with_macro
7682 {
7683 my ($cond, $macro, $mystrict, @files) = @_;
7684 $macro = rvar ($macro) unless ref $macro;
7685 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7686 }
7688 # require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7689 # ---------------------------------------------------------------
7690 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7691 # must be in that directory. Otherwise expect it in the current directory.
7692 sub require_libsource_with_macro
7693 {
7694 my ($cond, $macro, $mystrict, @files) = @_;
7695 $macro = rvar ($macro) unless ref $macro;
7696 if ($config_libobj_dir)
7697 {
7698 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7699 $config_libobj_dir, 0, @files);
7700 }
7701 else
7702 {
7703 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7704 }
7705 }
7707 # queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7708 # $MYSTRICT, @FILES)
7709 # --------------------------------------------------------------
7710 sub queue_required_file_check_or_copy
7711 {
7712 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7713 my @serial_loc;
7714 if (ref $where)
7715 {
7716 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7717 }
7718 else
7719 {
7720 @serial_loc = (QUEUE_STRING, $where);
7721 }
7722 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7723 }
7725 # require_queued_file_check_or_copy ($QUEUE)
7726 # ------------------------------------------
7727 sub require_queued_file_check_or_copy
7728 {
7729 my ($queue) = @_;
7730 my $where;
7731 my $dir = $queue->dequeue ();
7732 my $loc_key = $queue->dequeue ();
7733 if ($loc_key eq QUEUE_LOCATION)
7734 {
7735 $where = Automake::Location::deserialize ($queue);
7736 }
7737 elsif ($loc_key eq QUEUE_STRING)
7738 {
7739 $where = $queue->dequeue ();
7740 }
7741 else
7742 {
7743 prog_error "unexpected key $loc_key";
7744 }
7745 my $mystrict = $queue->dequeue ();
7746 my $nfiles = $queue->dequeue ();
7747 my @files;
7748 push @files, $queue->dequeue ()
7749 foreach (1 .. $nfiles);
7750 return
7751 unless $strictness >= $mystrict;
7752 foreach my $file (@files)
7753 {
7754 required_file_check_or_copy ($where, $config_aux_dir, $file);
7755 }
7756 }
7758 # require_conf_file ($WHERE, $MYSTRICT, @FILES)
7759 # ---------------------------------------------
7760 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7761 sub require_conf_file
7762 {
7763 my ($where, $mystrict, @files) = @_;
7764 my $queue = defined $required_conf_file_queue ? 1 : 0;
7765 require_file_internal ($where, $mystrict, $config_aux_dir,
7766 $queue, @files);
7767 }
7770 # require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7771 # ---------------------------------------------------------------
7772 sub require_conf_file_with_macro
7773 {
7774 my ($cond, $macro, $mystrict, @files) = @_;
7775 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7776 $mystrict, @files);
7777 }
7779 ################################################################
7781 # require_build_directory ($DIRECTORY)
7782 # ------------------------------------
7783 # Emit rules to create $DIRECTORY if needed, and return
7784 # the file that any target requiring this directory should be made
7785 # dependent upon.
7786 # We don't want to emit the rule twice, and want to reuse it
7787 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7788 sub require_build_directory
7789 {
7790 my $directory = shift;
7792 return $directory_map{$directory} if exists $directory_map{$directory};
7794 my $cdir = File::Spec->canonpath ($directory);
7796 if (exists $directory_map{$cdir})
7797 {
7798 my $stamp = $directory_map{$cdir};
7799 $directory_map{$directory} = $stamp;
7800 return $stamp;
7801 }
7803 my $dirstamp = "$cdir/\$(am__dirstamp)";
7805 $directory_map{$directory} = $dirstamp;
7806 $directory_map{$cdir} = $dirstamp;
7808 # Set a variable for the dirstamp basename.
7809 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7810 '$(am__leading_dot)dirstamp');
7812 # Directory must be removed by 'make distclean'.
7813 $clean_files{$dirstamp} = DIST_CLEAN;
7815 $output_rules .= ("$dirstamp:\n"
7816 . "\t\@\$(MKDIR_P) $directory\n"
7817 . "\t\@: > $dirstamp\n");
7819 return $dirstamp;
7820 }
7822 # require_build_directory_maybe ($FILE)
7823 # -------------------------------------
7824 # If $FILE lies in a subdirectory, emit a rule to create this
7825 # directory and return the file that $FILE should be made
7826 # dependent upon. Otherwise, just return the empty string.
7827 sub require_build_directory_maybe
7828 {
7829 my $file = shift;
7830 my $directory = dirname ($file);
7832 if ($directory ne '.')
7833 {
7834 return require_build_directory ($directory);
7835 }
7836 else
7837 {
7838 return '';
7839 }
7840 }
7842 ################################################################
7844 # Push a list of files onto '@dist_common'.
7845 sub push_dist_common
7846 {
7847 prog_error "push_dist_common run after handle_dist"
7848 if $handle_dist_run;
7849 push @dist_common, @_;
7850 }
7853 ################################################################
7855 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7856 # ----------------------------------------------
7857 # Generate a Makefile.in given the name of the corresponding Makefile and
7858 # the name of the file output by config.status.
7859 sub generate_makefile
7860 {
7861 my ($makefile_am, $makefile_in) = @_;
7863 # Reset all the Makefile.am related variables.
7864 initialize_per_input;
7866 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7867 # warnings for this file. So hold any warning issued before
7868 # we have processed AUTOMAKE_OPTIONS.
7869 buffer_messages ('warning');
7871 # $OUTPUT is encoded. If it contains a ":" then the first element
7872 # is the real output file, and all remaining elements are input
7873 # files. We don't scan or otherwise deal with these input files,
7874 # other than to mark them as dependencies. See the subroutine
7875 # 'scan_autoconf_files' for details.
7876 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7878 $relative_dir = dirname ($makefile);
7880 read_main_am_file ($makefile_am, $makefile_in);
7881 if (not handle_options)
7882 {
7883 # Process buffered warnings.
7884 flush_messages;
7885 # Fatal error. Just return, so we can continue with next file.
7886 return;
7887 }
7888 # Process buffered warnings.
7889 flush_messages;
7891 # There are a few install-related variables that you should not define.
7892 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7893 {
7894 my $v = var $var;
7895 if ($v)
7896 {
7897 my $def = $v->def (TRUE);
7898 prog_error "$var not defined in condition TRUE"
7899 unless $def;
7900 reject_var $var, "'$var' should not be defined"
7901 if $def->owner != VAR_AUTOMAKE;
7902 }
7903 }
7905 # Catch some obsolete variables.
7906 msg_var ('obsolete', 'INCLUDES',
7907 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7908 if var ('INCLUDES');
7910 # Must do this after reading .am file.
7911 define_variable ('subdir', $relative_dir, INTERNAL);
7913 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7914 # recursive rules are enabled.
7915 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7916 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7918 # Check first, because we might modify some state.
7919 check_gnu_standards;
7920 check_gnits_standards;
7922 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7923 handle_gettext;
7925 handle_targets;
7926 handle_libraries;
7927 handle_ltlibraries;
7928 handle_programs;
7929 handle_scripts;
7931 handle_silent;
7933 # These must be run after all the sources are scanned. They use
7934 # variables defined by handle_libraries(), handle_ltlibraries(),
7935 # or handle_programs().
7936 handle_compile;
7937 handle_languages;
7938 handle_libtool;
7940 # Variables used by distdir.am and tags.am.
7941 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7942 if (! option 'no-dist')
7943 {
7944 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7945 }
7947 handle_texinfo;
7948 handle_emacs_lisp;
7949 handle_python;
7950 handle_java;
7951 handle_man_pages;
7952 handle_data;
7953 handle_headers;
7954 handle_subdirs;
7955 handle_user_recursion;
7956 handle_tags;
7957 handle_minor_options;
7958 # Must come after handle_programs so that %known_programs is up-to-date.
7959 handle_tests;
7961 # This must come after most other rules.
7962 handle_dist;
7964 handle_footer;
7965 do_check_merge_target;
7966 handle_all ($makefile);
7968 # FIXME: Gross!
7969 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7970 {
7971 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7972 }
7973 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7974 {
7975 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7976 }
7978 handle_install;
7979 handle_clean ($makefile);
7980 handle_factored_dependencies;
7982 # Comes last, because all the above procedures may have
7983 # defined or overridden variables.
7984 $output_vars .= output_variables;
7986 check_typos;
7988 if ($exit_code != 0)
7989 {
7990 verb "not writing $makefile_in because of earlier errors";
7991 return;
7992 }
7994 my $am_relative_dir = dirname ($makefile_am);
7995 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
7997 # We make sure that 'all:' is the first target.
7998 my $output =
7999 "$output_vars$output_all$output_header$output_rules$output_trailer";
8001 # Decide whether we must update the output file or not.
8002 # We have to update in the following situations.
8003 # * $force_generation is set.
8004 # * any of the output dependencies is younger than the output
8005 # * the contents of the output is different (this can happen
8006 # if the project has been populated with a file listed in
8007 # @common_files since the last run).
8008 # Output's dependencies are split in two sets:
8009 # * dependencies which are also configure dependencies
8010 # These do not change between each Makefile.am
8011 # * other dependencies, specific to the Makefile.am being processed
8012 # (such as the Makefile.am itself, or any Makefile fragment
8013 # it includes).
8014 my $timestamp = mtime $makefile_in;
8015 if (! $force_generation
8016 && $configure_deps_greatest_timestamp < $timestamp
8017 && $output_deps_greatest_timestamp < $timestamp
8018 && $output eq contents ($makefile_in))
8019 {
8020 verb "$makefile_in unchanged";
8021 # No need to update.
8022 return;
8023 }
8025 if (-e $makefile_in)
8026 {
8027 unlink ($makefile_in)
8028 or fatal "cannot remove $makefile_in: $!";
8029 }
8031 my $gm_file = new Automake::XFile "> $makefile_in";
8032 verb "creating $makefile_in";
8033 print $gm_file $output;
8034 }
8037 ################################################################
8040 # Helper function for usage().
8041 sub print_autodist_files
8042 {
8043 my @lcomm = uniq (sort @_);
8045 my @four;
8046 format USAGE_FORMAT =
8047 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8048 $four[0], $four[1], $four[2], $four[3]
8049 .
8050 local $~ = "USAGE_FORMAT";
8052 my $cols = 4;
8053 my $rows = int(@lcomm / $cols);
8054 my $rest = @lcomm % $cols;
8056 if ($rest)
8057 {
8058 $rows++;
8059 }
8060 else
8061 {
8062 $rest = $cols;
8063 }
8065 for (my $y = 0; $y < $rows; $y++)
8066 {
8067 @four = ("", "", "", "");
8068 for (my $x = 0; $x < $cols; $x++)
8069 {
8070 last if $y + 1 == $rows && $x == $rest;
8072 my $idx = (($x > $rest)
8073 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8074 : ($rows * $x));
8076 $idx += $y;
8077 $four[$x] = $lcomm[$idx];
8078 }
8079 write;
8080 }
8081 }
8084 sub usage ()
8085 {
8086 print "Usage: $0 [OPTION]... [Makefile]...
8088 Generate Makefile.in for configure from Makefile.am.
8090 Operation modes:
8091 --help print this help, then exit
8092 --version print version number, then exit
8093 -v, --verbose verbosely list files processed
8094 --no-force only update Makefile.in's that are out of date
8095 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8097 Dependency tracking:
8098 -i, --ignore-deps disable dependency tracking code
8099 --include-deps enable dependency tracking code
8101 Flavors:
8102 --foreign set strictness to foreign
8103 --gnits set strictness to gnits
8104 --gnu set strictness to gnu
8106 Library files:
8107 -a, --add-missing add missing standard files to package
8108 --libdir=DIR set directory storing library files
8109 --print-libdir print directory storing library files
8110 -c, --copy with -a, copy missing files (default is symlink)
8111 -f, --force-missing force update of standard files
8113 ";
8114 Automake::ChannelDefs::usage;
8116 print "\nFiles automatically distributed if found " .
8117 "(always):\n";
8118 print_autodist_files @common_files;
8119 print "\nFiles automatically distributed if found " .
8120 "(under certain conditions):\n";
8121 print_autodist_files @common_sometimes;
8123 print '
8124 Report bugs to <@PACKAGE_BUGREPORT@>.
8125 GNU Automake home page: <@PACKAGE_URL@>.
8126 General help using GNU software: <https://www.gnu.org/gethelp/>.
8127 ';
8129 # --help always returns 0 per GNU standards.
8130 exit 0;
8131 }
8134 sub version ()
8135 {
8136 print <<EOF;
8137 automake (GNU $PACKAGE) $VERSION
8138 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8139 License GPLv2+: GNU GPL version 2 or later <https://gnu.org/licenses/gpl-2.0.html>
8140 This is free software: you are free to change and redistribute it.
8141 There is NO WARRANTY, to the extent permitted by law.
8143 Written by Tom Tromey <tromey\@redhat.com>
8144 and Alexandre Duret-Lutz <adl\@gnu.org>.
8145 EOF
8146 # --version always returns 0 per GNU standards.
8147 exit 0;
8148 }
8150 ################################################################
8152 # Parse command line.
8153 sub parse_arguments ()
8154 {
8155 my $strict = 'gnu';
8156 my $ignore_deps = 0;
8157 my @warnings = ();
8159 my %cli_options =
8160 (
8161 'version' => \&version,
8162 'help' => \&usage,
8163 'libdir=s' => \$libdir,
8164 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8165 'gnu' => sub { $strict = 'gnu'; },
8166 'gnits' => sub { $strict = 'gnits'; },
8167 'foreign' => sub { $strict = 'foreign'; },
8168 'include-deps' => sub { $ignore_deps = 0; },
8169 'i|ignore-deps' => sub { $ignore_deps = 1; },
8170 'no-force' => sub { $force_generation = 0; },
8171 'f|force-missing' => \$force_missing,
8172 'a|add-missing' => \$add_missing,
8173 'c|copy' => \$copy_missing,
8174 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8175 'W|warnings=s' => \@warnings,
8176 );
8178 use Automake::Getopt ();
8179 Automake::Getopt::parse_options %cli_options;
8181 set_strictness ($strict);
8182 my $cli_where = new Automake::Location;
8183 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8184 for my $warning (@warnings)
8185 {
8186 parse_warnings ('-W', $warning);
8187 }
8189 return unless @ARGV;
8191 my $errspec = 0;
8192 foreach my $arg (@ARGV)
8193 {
8194 fatal ("empty argument\nTry '$0 --help' for more information")
8195 if ($arg eq '');
8197 # Handle $local:$input syntax.
8198 my ($local, @rest) = split (/:/, $arg);
8199 @rest = ("$local.in",) unless @rest;
8200 my $input = locate_am @rest;
8201 if ($input)
8202 {
8203 push @input_files, $input;
8204 $output_files{$input} = join (':', ($local, @rest));
8205 }
8206 else
8207 {
8208 error "no Automake input file found for '$arg'";
8209 $errspec = 1;
8210 }
8211 }
8212 fatal "no input file found among supplied arguments"
8213 if $errspec && ! @input_files;
8214 }
8217 # handle_makefile ($MAKEFILE)
8218 # ---------------------------
8219 sub handle_makefile
8220 {
8221 my ($file) = @_;
8222 ($am_file = $file) =~ s/\.in$//;
8223 if (! -f ($am_file . '.am'))
8224 {
8225 error "'$am_file.am' does not exist";
8226 }
8227 else
8228 {
8229 # Any warning setting now local to this Makefile.am.
8230 dup_channel_setup;
8232 generate_makefile ($am_file . '.am', $file);
8234 # Back out any warning setting.
8235 drop_channel_setup;
8236 }
8237 }
8239 # Deal with all makefiles, without threads.
8240 sub handle_makefiles_serial ()
8241 {
8242 foreach my $file (@input_files)
8243 {
8244 handle_makefile ($file);
8245 }
8246 }
8248 # Logic for deciding how many worker threads to use.
8249 sub get_number_of_threads ()
8250 {
8251 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8253 $nthreads = 0
8254 unless $nthreads =~ /^[0-9]+$/;
8256 # It doesn't make sense to use more threads than makefiles,
8257 my $max_threads = @input_files;
8259 if ($nthreads > $max_threads)
8260 {
8261 $nthreads = $max_threads;
8262 }
8263 return $nthreads;
8264 }
8266 # handle_makefiles_threaded ($NTHREADS)
8267 # -------------------------------------
8268 # Deal with all makefiles, using threads. The general strategy is to
8269 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8270 # worker threads push back everything that needs serialization:
8271 # * warning and (normal) error messages, for stable stderr output
8272 # order and content (avoiding duplicates, for example),
8273 # * races when installing aux files (and respective messages),
8274 # * races when collecting aux files for distribution.
8275 #
8276 # The latter requires that the makefile that deals with the aux dir
8277 # files be handled last, done by the master thread.
8278 sub handle_makefiles_threaded
8279 {
8280 my ($nthreads) = @_;
8282 # The file queue distributes all makefiles, the message queues
8283 # collect all serializations needed for respective files.
8284 my $file_queue = Thread::Queue->new;
8285 my %msg_queues;
8286 foreach my $file (@input_files)
8287 {
8288 $msg_queues{$file} = Thread::Queue->new;
8289 }
8291 verb "spawning $nthreads worker threads";
8292 my @threads = (1 .. $nthreads);
8293 foreach my $t (@threads)
8294 {
8295 $t = threads->new (sub
8296 {
8297 while (my $file = $file_queue->dequeue)
8298 {
8299 verb "handling $file";
8300 my $queue = $msg_queues{$file};
8301 setup_channel_queue ($queue, QUEUE_MESSAGE);
8302 $required_conf_file_queue = $queue;
8303 handle_makefile ($file);
8304 $queue->enqueue (undef);
8305 setup_channel_queue (undef, undef);
8306 $required_conf_file_queue = undef;
8307 }
8308 return $exit_code;
8309 });
8310 }
8312 # Queue all makefiles.
8313 verb "queuing " . @input_files . " input files";
8314 $file_queue->enqueue (@input_files, (undef) x @threads);
8316 # Collect and process serializations.
8317 foreach my $file (@input_files)
8318 {
8319 verb "dequeuing messages for " . $file;
8320 reset_local_duplicates ();
8321 my $queue = $msg_queues{$file};
8322 while (my $key = $queue->dequeue)
8323 {
8324 if ($key eq QUEUE_MESSAGE)
8325 {
8326 pop_channel_queue ($queue);
8327 }
8328 elsif ($key eq QUEUE_CONF_FILE)
8329 {
8330 require_queued_file_check_or_copy ($queue);
8331 }
8332 else
8333 {
8334 prog_error "unexpected key $key";
8335 }
8336 }
8337 }
8339 foreach my $t (@threads)
8340 {
8341 my @exit_thread = $t->join;
8342 $exit_code = $exit_thread[0]
8343 if ($exit_thread[0] > $exit_code);
8344 }
8345 }
8347 ################################################################
8349 # Parse the WARNINGS environment variable.
8350 parse_WARNINGS;
8352 # Parse command line.
8353 parse_arguments;
8355 $configure_ac = require_configure_ac;
8357 # Do configure.ac scan only once.
8358 scan_autoconf_files;
8360 if (! @input_files)
8361 {
8362 my $msg = '';
8363 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8364 if -f 'Makefile.am';
8365 fatal ("no 'Makefile.am' found for any configure output$msg");
8366 }
8368 my $nthreads = get_number_of_threads ();
8370 if ($perl_threads && $nthreads >= 1)
8371 {
8372 handle_makefiles_threaded ($nthreads);
8373 }
8374 else
8375 {
8376 handle_makefiles_serial ();
8377 }
8379 exit $exit_code;