| blob | 3194c994888e3785e09eee5cbd16bedd20745685 |
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) 1994-2012 Free Software Foundation, Inc.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2, or (at your option)
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 <http://www.gnu.org/licenses/>.
24 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
25 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
26 # Alexandre Duret-Lutz <adl@gnu.org>.
28 package Language;
30 BEGIN
31 {
32 @Automake::perl_libdirs = ('@datadir@/@PACKAGE@-@APIVERSION@')
33 unless @Automake::perl_libdirs;
34 unshift @INC, @Automake::perl_libdirs;
36 # Override SHELL. This is required on DJGPP so that system() uses
37 # bash, not COMMAND.COM which doesn't quote arguments properly.
38 # Other systems aren't expected to use $SHELL when Automake
39 # runs, but it should be safe to drop the "if DJGPP" guard if
40 # it turns up other systems need the same thing. After all,
41 # if SHELL is used, ./configure's SHELL is always better than
42 # the user's SHELL (which may be something like tcsh).
43 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
44 }
46 use Class::Struct ();
47 Class::Struct::struct (
48 # Short name of the language (c, f77...).
49 'name' => "\$",
50 # Nice name of the language (C, Fortran 77...).
51 'Name' => "\$",
53 # List of configure variables which must be defined.
54 'config_vars' => '@',
56 # 'pure' is '1' or ''. A 'pure' language is one where, if
57 # all the files in a directory are of that language, then we
58 # do not require the C compiler or any code to call it.
59 'pure' => "\$",
61 'autodep' => "\$",
63 # Name of the compiling variable (COMPILE).
64 'compiler' => "\$",
65 # Content of the compiling variable.
66 'compile' => "\$",
67 # Flag to require compilation without linking (-c).
68 'compile_flag' => "\$",
69 'extensions' => '@',
70 # A subroutine to compute a list of possible extensions of
71 # the product given the input extensions.
72 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
73 'output_extensions' => "\$",
74 # A list of flag variables used in 'compile'.
75 # (defaults to [])
76 'flags' => "@",
78 # Any tag to pass to libtool while compiling.
79 'libtool_tag' => "\$",
81 # The file to use when generating rules for this language.
82 # The default is 'depend2'.
83 'rule_file' => "\$",
85 # Name of the linking variable (LINK).
86 'linker' => "\$",
87 # Content of the linking variable.
88 'link' => "\$",
90 # Name of the compiler variable (CC).
91 'ccer' => "\$",
93 # Name of the linker variable (LD).
94 'lder' => "\$",
95 # Content of the linker variable ($(CC)).
96 'ld' => "\$",
98 # Flag to specify the output file (-o).
99 'output_flag' => "\$",
100 '_finish' => "\$",
102 # This is a subroutine which is called whenever we finally
103 # determine the context in which a source file will be
104 # compiled.
105 '_target_hook' => "\$",
107 # If TRUE, nodist_ sources will be compiled using specific rules
108 # (i.e. not inference rules). The default is FALSE.
109 'nodist_specific' => "\$");
112 sub finish ($)
113 {
114 my ($self) = @_;
115 if (defined $self->_finish)
116 {
117 &{$self->_finish} (@_);
118 }
119 }
121 sub target_hook ($$$$%)
122 {
123 my ($self) = @_;
124 if (defined $self->_target_hook)
125 {
126 &{$self->_target_hook} (@_);
127 }
128 }
130 package Automake;
132 use strict;
133 use Automake::Config;
134 BEGIN
135 {
136 if ($perl_threads)
137 {
138 require threads;
139 import threads;
140 require Thread::Queue;
141 import Thread::Queue;
142 }
143 }
144 use Automake::General;
145 use Automake::XFile;
146 use Automake::Channels;
147 use Automake::ChannelDefs;
148 use Automake::Configure_ac;
149 use Automake::FileUtils;
150 use Automake::Location;
151 use Automake::Condition qw/TRUE FALSE/;
152 use Automake::DisjConditions;
153 use Automake::Options;
154 use Automake::Variable;
155 use Automake::VarDef;
156 use Automake::Rule;
157 use Automake::RuleDef;
158 use Automake::Wrap 'makefile_wrap';
159 use File::Basename;
160 use File::Spec;
161 use Carp;
163 ## ----------- ##
164 ## Constants. ##
165 ## ----------- ##
167 # Some regular expressions. One reason to put them here is that it
168 # makes indentation work better in Emacs.
170 # Writing singled-quoted-$-terminated regexes is a pain because
171 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
172 # by a closing quote. Letting perl-mode think the quote is not closed
173 # leads to all sort of misindentations. On the other hand, defining
174 # regexes as double-quoted strings is far less readable. So usually
175 # we will write:
176 #
177 # $REGEX = '^regex_value' . "\$";
179 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
180 my $WHITE_PATTERN = '^\s*' . "\$";
181 my $COMMENT_PATTERN = '^#';
182 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
183 # A rule has three parts: a list of targets, a list of dependencies,
184 # and optionally actions.
185 my $RULE_PATTERN =
186 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
188 # Only recognize leading spaces, not leading tabs. If we recognize
189 # leading tabs here then we need to make the reader smarter, because
190 # otherwise it will think rules like 'foo=bar; \' are errors.
191 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
192 # This pattern recognizes a Gnits version id and sets $1 if the
193 # release is an alpha release. We also allow a suffix which can be
194 # used to extend the version number with a "fork" identifier.
195 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
197 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
198 my $ELSE_PATTERN =
199 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
200 my $ENDIF_PATTERN =
201 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
202 my $PATH_PATTERN = '(\w|[+/.-])+';
203 # This will pass through anything not of the prescribed form.
204 my $INCLUDE_PATTERN = ('^include\s+'
205 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
206 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
207 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
209 # Directories installed during 'install-exec' phase.
210 my $EXEC_DIR_PATTERN =
211 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
213 # Values for AC_CANONICAL_*
214 use constant AC_CANONICAL_BUILD => 1;
215 use constant AC_CANONICAL_HOST => 2;
216 use constant AC_CANONICAL_TARGET => 3;
218 # Values indicating when something should be cleaned.
219 use constant MOSTLY_CLEAN => 0;
220 use constant CLEAN => 1;
221 use constant DIST_CLEAN => 2;
222 use constant MAINTAINER_CLEAN => 3;
224 # Libtool files.
225 my @libtool_files = qw(ltmain.sh config.guess config.sub);
226 # ltconfig appears here for compatibility with old versions of libtool.
227 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
229 # Commonly found files we look for and automatically include in
230 # DISTFILES.
231 my @common_files =
232 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
233 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
234 ar-lib compile config.guess config.rpath
235 config.sub depcomp install-sh libversion.in mdate-sh
236 missing mkinstalldirs py-compile texinfo.tex ylwrap),
237 @libtool_files, @libtool_sometimes);
239 # Commonly used files we auto-include, but only sometimes. This list
240 # is used for the --help output only.
241 my @common_sometimes =
242 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
243 configure.ac configure.in stamp-vti);
245 # Standard directories from the GNU Coding Standards, and additional
246 # pkg* directories from Automake. Stored in a hash for fast member check.
247 my %standard_prefix =
248 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
249 lib libexec lisp locale localstate man man1 man2
250 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
251 pkgdata pkginclude pkglib pkglibexec ps sbin
252 sharedstate sysconf));
254 # Copyright on generated Makefile.ins.
255 my $gen_copyright = "\
256 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
258 # This Makefile.in is free software; the Free Software Foundation
259 # gives unlimited permission to copy and/or distribute it,
260 # with or without modifications, as long as this notice is preserved.
262 # This program is distributed in the hope that it will be useful,
263 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
264 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
265 # PARTICULAR PURPOSE.
266 ";
268 # These constants are returned by the lang_*_rewrite functions.
269 # LANG_SUBDIR means that the resulting object file should be in a
270 # subdir if the source file is. In this case the file name cannot
271 # have '..' components.
272 use constant LANG_IGNORE => 0;
273 use constant LANG_PROCESS => 1;
274 use constant LANG_SUBDIR => 2;
276 # These are used when keeping track of whether an object can be built
277 # by two different paths.
278 use constant COMPILE_LIBTOOL => 1;
279 use constant COMPILE_ORDINARY => 2;
281 # We can't always associate a location to a variable or a rule,
282 # when it's defined by Automake. We use INTERNAL in this case.
283 use constant INTERNAL => new Automake::Location;
285 # Serialization keys for message queues.
286 use constant QUEUE_MESSAGE => "msg";
287 use constant QUEUE_CONF_FILE => "conf file";
288 use constant QUEUE_LOCATION => "location";
289 use constant QUEUE_STRING => "string";
291 ## ---------------------------------- ##
292 ## Variables related to the options. ##
293 ## ---------------------------------- ##
295 # TRUE if we should always generate Makefile.in.
296 my $force_generation = 1;
298 # From the Perl manual.
299 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
301 # TRUE if missing standard files should be installed.
302 my $add_missing = 0;
304 # TRUE if we should copy missing files; otherwise symlink if possible.
305 my $copy_missing = 0;
307 # TRUE if we should always update files that we know about.
308 my $force_missing = 0;
311 ## ---------------------------------------- ##
312 ## Variables filled during files scanning. ##
313 ## ---------------------------------------- ##
315 # Name of the configure.ac file.
316 my $configure_ac;
318 # Files found by scanning configure.ac for LIBOBJS.
319 my %libsources = ();
321 # Names used in AC_CONFIG_HEADER call.
322 my @config_headers = ();
324 # Names used in AC_CONFIG_LINKS call.
325 my @config_links = ();
327 # List of Makefile.am's to process, and their corresponding outputs.
328 my @input_files = ();
329 my %output_files = ();
331 # Complete list of Makefile.am's that exist.
332 my @configure_input_files = ();
334 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
335 # and their outputs.
336 my @other_input_files = ();
337 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
338 # The keys are the files created by these macros.
339 my %ac_config_files_location = ();
340 # The condition under which AC_CONFIG_FOOS appears.
341 my %ac_config_files_condition = ();
343 # Directory to search for configure-required files. This
344 # will be computed by &locate_aux_dir and can be set using
345 # AC_CONFIG_AUX_DIR in configure.ac.
346 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
347 my $config_aux_dir = '';
348 my $config_aux_dir_set_in_configure_ac = 0;
349 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
350 # in Makefiles.
351 my $am_config_aux_dir = '';
353 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
354 # in configure.ac.
355 my $config_libobj_dir = '';
357 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
358 my $seen_gettext = 0;
359 # Whether AM_GNU_GETTEXT([external]) is used.
360 my $seen_gettext_external = 0;
361 # Where AM_GNU_GETTEXT appears.
362 my $ac_gettext_location;
363 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
364 my $seen_gettext_intl = 0;
366 # The arguments of the AM_EXTRA_RECURSIVE_TARGETS call (if any).
367 my @extra_recursive_targets = ();
369 # Lists of tags supported by Libtool.
370 my %libtool_tags = ();
371 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
372 # uses AC_REQUIRE_AUX_FILE.
373 my $libtool_new_api = 0;
375 # Most important AC_CANONICAL_* macro seen so far.
376 my $seen_canonical = 0;
378 # Where AM_MAINTAINER_MODE appears.
379 my $seen_maint_mode;
381 # Actual version we've seen.
382 my $package_version = '';
384 # Where version is defined.
385 my $package_version_location;
387 # TRUE if we've seen AM_PROG_AR
388 my $seen_ar = 0;
390 # TRUE if we've seen AM_PROG_CC_C_O
391 my $seen_cc_c_o = 0;
393 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
394 my %required_aux_file = ();
396 # Where AM_INIT_AUTOMAKE is called;
397 my $seen_init_automake = 0;
399 # TRUE if we've seen AM_AUTOMAKE_VERSION.
400 my $seen_automake_version = 0;
402 # Hash table of discovered configure substitutions. Keys are names,
403 # values are 'FILE:LINE' strings which are used by error message
404 # generation.
405 my %configure_vars = ();
407 # Ignored configure substitutions (i.e., variables not to be output in
408 # Makefile.in)
409 my %ignored_configure_vars = ();
411 # Files included by $configure_ac.
412 my @configure_deps = ();
414 # Greatest timestamp of configure's dependencies.
415 my $configure_deps_greatest_timestamp = 0;
417 # Hash table of AM_CONDITIONAL variables seen in configure.
418 my %configure_cond = ();
420 # This maps extensions onto language names.
421 my %extension_map = ();
423 # List of the DIST_COMMON files we discovered while reading
424 # configure.ac.
425 my $configure_dist_common = '';
427 # This maps languages names onto objects.
428 my %languages = ();
429 # Maps each linker variable onto a language object.
430 my %link_languages = ();
432 # maps extensions to needed source flags.
433 my %sourceflags = ();
435 # List of targets we must always output.
436 # FIXME: Complete, and remove falsely required targets.
437 my %required_targets =
438 (
439 'all' => 1,
440 'dvi' => 1,
441 'pdf' => 1,
442 'ps' => 1,
443 'info' => 1,
444 'install-info' => 1,
445 'install' => 1,
446 'install-data' => 1,
447 'install-exec' => 1,
448 'uninstall' => 1,
450 # FIXME: Not required, temporary hacks.
451 # Well, actually they are sort of required: the -recursive
452 # targets will run them anyway...
453 'html-am' => 1,
454 'dvi-am' => 1,
455 'pdf-am' => 1,
456 'ps-am' => 1,
457 'info-am' => 1,
458 'install-data-am' => 1,
459 'install-exec-am' => 1,
460 'install-html-am' => 1,
461 'install-dvi-am' => 1,
462 'install-pdf-am' => 1,
463 'install-ps-am' => 1,
464 'install-info-am' => 1,
465 'installcheck-am' => 1,
466 'uninstall-am' => 1,
467 'tags-am' => 1,
468 'ctags-am' => 1,
469 'cscopelist-am' => 1,
470 'install-man' => 1,
471 );
473 # Queue to push require_conf_file requirements to.
474 my $required_conf_file_queue;
476 # The name of the Makefile currently being processed.
477 my $am_file = 'BUG';
479 ################################################################
481 ## ------------------------------------------ ##
482 ## Variables reset by &initialize_per_input. ##
483 ## ------------------------------------------ ##
485 # Relative dir of the output makefile.
486 my $relative_dir;
488 # Greatest timestamp of the output's dependencies (excluding
489 # configure's dependencies).
490 my $output_deps_greatest_timestamp;
492 # These variables are used when generating each Makefile.in.
493 # They hold the Makefile.in until it is ready to be printed.
494 my $output_vars;
495 my $output_all;
496 my $output_header;
497 my $output_rules;
498 my $output_trailer;
500 # This is the conditional stack, updated on if/else/endif, and
501 # used to build Condition objects.
502 my @cond_stack;
504 # This holds the set of included files.
505 my @include_stack;
507 # List of dependencies for the obvious targets.
508 my @all;
509 my @check;
510 my @check_tests;
512 # Keys in this hash table are files to delete. The associated
513 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
514 my %clean_files;
516 # Keys in this hash table are object files or other files in
517 # subdirectories which need to be removed. This only holds files
518 # which are created by compilations. The value in the hash indicates
519 # when the file should be removed.
520 my %compile_clean_files;
522 # Keys in this hash table are directories where we expect to build a
523 # libtool object. We use this information to decide what directories
524 # to delete.
525 my %libtool_clean_directories;
527 # Value of $(SOURCES), used by tags.am.
528 my @sources;
529 # Sources which go in the distribution.
530 my @dist_sources;
532 # This hash maps object file names onto their corresponding source
533 # file names. This is used to ensure that each object is created
534 # by a single source file.
535 my %object_map;
537 # This hash maps object file names onto an integer value representing
538 # whether this object has been built via ordinary compilation or
539 # libtool compilation (the COMPILE_* constants).
540 my %object_compilation_map;
543 # This keeps track of the directories for which we've already
544 # created dirstamp code. Keys are directories, values are stamp files.
545 # Several keys can share the same stamp files if they are equivalent
546 # (as are './/foo' and 'foo').
547 my %directory_map;
549 # All .P files.
550 my %dep_files;
552 # This is a list of all targets to run during "make dist".
553 my @dist_targets;
555 # Keep track of all programs declared in this Makefile, without
556 # $(EXEEXT). @substitutions@ are not listed.
557 my %known_programs;
558 my %known_libraries;
560 # This keeps track of which extensions we've seen (that we care
561 # about).
562 my %extension_seen;
564 # This is random scratch space for the language finish functions.
565 # Don't randomly overwrite it; examine other uses of keys first.
566 my %language_scratch;
568 # We keep track of which objects need special (per-executable)
569 # handling on a per-language basis.
570 my %lang_specific_files;
572 # This is set when 'handle_dist' has finished. Once this happens,
573 # we should no longer push on dist_common.
574 my $handle_dist_run;
576 # Used to store a set of linkers needed to generate the sources currently
577 # under consideration.
578 my %linkers_used;
580 # True if we need 'LINK' defined. This is a hack.
581 my $need_link;
583 # Does the generated Makefile have to build some compiled object
584 # (for binary programs, or plain or libtool libraries)?
585 my $must_handle_compiled_objects;
587 # Record each file processed by make_paragraphs.
588 my %transformed_files;
590 ################################################################
592 ## ---------------------------------------------- ##
593 ## Variables not reset by &initialize_per_input. ##
594 ## ---------------------------------------------- ##
596 # Cache each file processed by make_paragraphs.
597 # (This is different from %transformed_files because
598 # %transformed_files is reset for each file while %am_file_cache
599 # it global to the run.)
600 my %am_file_cache;
602 ################################################################
604 # var_SUFFIXES_trigger ($TYPE, $VALUE)
605 # ------------------------------------
606 # This is called by Automake::Variable::define() when SUFFIXES
607 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
608 # The work here needs to be performed as a side-effect of the
609 # macro_define() call because SUFFIXES definitions impact
610 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
611 # the input am file.
612 sub var_SUFFIXES_trigger ($$)
613 {
614 my ($type, $value) = @_;
615 accept_extensions (split (' ', $value));
616 }
617 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
619 ################################################################
621 ## --------------------------------- ##
622 ## Forward subroutine declarations. ##
623 ## --------------------------------- ##
624 sub register_language (%);
625 sub file_contents_internal ($$$%);
626 sub define_files_variable ($\@$$);
629 # &initialize_per_input ()
630 # ------------------------
631 # (Re)-Initialize per-Makefile.am variables.
632 sub initialize_per_input ()
633 {
634 reset_local_duplicates ();
636 $relative_dir = undef;
638 $output_deps_greatest_timestamp = 0;
640 $output_vars = '';
641 $output_all = '';
642 $output_header = '';
643 $output_rules = '';
644 $output_trailer = '';
646 Automake::Options::reset;
647 Automake::Variable::reset;
648 Automake::Rule::reset;
650 @cond_stack = ();
652 @include_stack = ();
654 @all = ();
655 @check = ();
656 @check_tests = ();
658 %clean_files = ();
659 %compile_clean_files = ();
661 # We always include '.'. This isn't strictly correct.
662 %libtool_clean_directories = ('.' => 1);
664 @sources = ();
665 @dist_sources = ();
667 %object_map = ();
668 %object_compilation_map = ();
670 %directory_map = ();
672 %dep_files = ();
674 @dist_targets = ();
676 %known_programs = ();
677 %known_libraries= ();
679 %extension_seen = ();
681 %language_scratch = ();
683 %lang_specific_files = ();
685 $handle_dist_run = 0;
687 $need_link = 0;
689 $must_handle_compiled_objects = 0;
691 %transformed_files = ();
692 }
695 ################################################################
697 # Initialize our list of languages that are internally supported.
699 # C.
700 register_language ('name' => 'c',
701 'Name' => 'C',
702 'config_vars' => ['CC'],
703 'autodep' => '',
704 'flags' => ['CFLAGS', 'CPPFLAGS'],
705 'ccer' => 'CC',
706 'compiler' => 'COMPILE',
707 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
708 'lder' => 'CCLD',
709 'ld' => '$(CC)',
710 'linker' => 'LINK',
711 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
712 'compile_flag' => '-c',
713 'libtool_tag' => 'CC',
714 'extensions' => ['.c']);
716 # C++.
717 register_language ('name' => 'cxx',
718 'Name' => 'C++',
719 'config_vars' => ['CXX'],
720 'linker' => 'CXXLINK',
721 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
722 'autodep' => 'CXX',
723 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
724 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
725 'ccer' => 'CXX',
726 'compiler' => 'CXXCOMPILE',
727 'compile_flag' => '-c',
728 'output_flag' => '-o',
729 'libtool_tag' => 'CXX',
730 'lder' => 'CXXLD',
731 'ld' => '$(CXX)',
732 'pure' => 1,
733 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
735 # Objective C.
736 register_language ('name' => 'objc',
737 'Name' => 'Objective C',
738 'config_vars' => ['OBJC'],
739 'linker' => 'OBJCLINK',
740 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
741 'autodep' => 'OBJC',
742 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
743 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
744 'ccer' => 'OBJC',
745 'compiler' => 'OBJCCOMPILE',
746 'compile_flag' => '-c',
747 'output_flag' => '-o',
748 'lder' => 'OBJCLD',
749 'ld' => '$(OBJC)',
750 'pure' => 1,
751 'extensions' => ['.m']);
753 # Objective C++.
754 register_language ('name' => 'objcxx',
755 'Name' => 'Objective C++',
756 'config_vars' => ['OBJCXX'],
757 'linker' => 'OBJCXXLINK',
758 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
759 'autodep' => 'OBJCXX',
760 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
761 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
762 'ccer' => 'OBJCXX',
763 'compiler' => 'OBJCXXCOMPILE',
764 'compile_flag' => '-c',
765 'output_flag' => '-o',
766 'lder' => 'OBJCXXLD',
767 'ld' => '$(OBJCXX)',
768 'pure' => 1,
769 'extensions' => ['.mm']);
771 # Unified Parallel C.
772 register_language ('name' => 'upc',
773 'Name' => 'Unified Parallel C',
774 'config_vars' => ['UPC'],
775 'linker' => 'UPCLINK',
776 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
777 'autodep' => 'UPC',
778 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
779 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
780 'ccer' => 'UPC',
781 'compiler' => 'UPCCOMPILE',
782 'compile_flag' => '-c',
783 'output_flag' => '-o',
784 'lder' => 'UPCLD',
785 'ld' => '$(UPC)',
786 'pure' => 1,
787 'extensions' => ['.upc']);
789 # Headers.
790 register_language ('name' => 'header',
791 'Name' => 'Header',
792 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
793 '.hpp', '.inc'],
794 # No output.
795 'output_extensions' => sub { return () },
796 # Nothing to do.
797 '_finish' => sub { });
799 # Vala
800 register_language ('name' => 'vala',
801 'Name' => 'Vala',
802 'config_vars' => ['VALAC'],
803 'flags' => [],
804 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
805 'ccer' => 'VALAC',
806 'compiler' => 'VALACOMPILE',
807 'extensions' => ['.vala'],
808 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
809 return ($ext,) },
810 'rule_file' => 'vala',
811 '_finish' => \&lang_vala_finish,
812 '_target_hook' => \&lang_vala_target_hook,
813 'nodist_specific' => 1);
815 # Yacc (C & C++).
816 register_language ('name' => 'yacc',
817 'Name' => 'Yacc',
818 'config_vars' => ['YACC'],
819 'flags' => ['YFLAGS'],
820 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
821 'ccer' => 'YACC',
822 'compiler' => 'YACCCOMPILE',
823 'extensions' => ['.y'],
824 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
825 return ($ext,) },
826 'rule_file' => 'yacc',
827 '_finish' => \&lang_yacc_finish,
828 '_target_hook' => \&lang_yacc_target_hook,
829 'nodist_specific' => 1);
830 register_language ('name' => 'yaccxx',
831 'Name' => 'Yacc (C++)',
832 'config_vars' => ['YACC'],
833 'rule_file' => 'yacc',
834 'flags' => ['YFLAGS'],
835 'ccer' => 'YACC',
836 'compiler' => 'YACCCOMPILE',
837 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
838 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
839 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
840 return ($ext,) },
841 '_finish' => \&lang_yacc_finish,
842 '_target_hook' => \&lang_yacc_target_hook,
843 'nodist_specific' => 1);
845 # Lex (C & C++).
846 register_language ('name' => 'lex',
847 'Name' => 'Lex',
848 'config_vars' => ['LEX'],
849 'rule_file' => 'lex',
850 'flags' => ['LFLAGS'],
851 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
852 'ccer' => 'LEX',
853 'compiler' => 'LEXCOMPILE',
854 'extensions' => ['.l'],
855 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
856 return ($ext,) },
857 '_finish' => \&lang_lex_finish,
858 '_target_hook' => \&lang_lex_target_hook,
859 'nodist_specific' => 1);
860 register_language ('name' => 'lexxx',
861 'Name' => 'Lex (C++)',
862 'config_vars' => ['LEX'],
863 'rule_file' => 'lex',
864 'flags' => ['LFLAGS'],
865 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
866 'ccer' => 'LEX',
867 'compiler' => 'LEXCOMPILE',
868 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
869 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
870 return ($ext,) },
871 '_finish' => \&lang_lex_finish,
872 '_target_hook' => \&lang_lex_target_hook,
873 'nodist_specific' => 1);
875 # Assembler.
876 register_language ('name' => 'asm',
877 'Name' => 'Assembler',
878 'config_vars' => ['CCAS', 'CCASFLAGS'],
880 'flags' => ['CCASFLAGS'],
881 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
882 # or anything else required. They can also set CCAS.
883 # Or simply use Preprocessed Assembler.
884 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
885 'ccer' => 'CCAS',
886 'compiler' => 'CCASCOMPILE',
887 'compile_flag' => '-c',
888 'output_flag' => '-o',
889 'extensions' => ['.s']);
891 # Preprocessed Assembler.
892 register_language ('name' => 'cppasm',
893 'Name' => 'Preprocessed Assembler',
894 'config_vars' => ['CCAS', 'CCASFLAGS'],
896 'autodep' => 'CCAS',
897 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
898 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
899 'ccer' => 'CPPAS',
900 'compiler' => 'CPPASCOMPILE',
901 'compile_flag' => '-c',
902 'output_flag' => '-o',
903 'extensions' => ['.S', '.sx']);
905 # Fortran 77
906 register_language ('name' => 'f77',
907 'Name' => 'Fortran 77',
908 'config_vars' => ['F77'],
909 'linker' => 'F77LINK',
910 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
911 'flags' => ['FFLAGS'],
912 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
913 'ccer' => 'F77',
914 'compiler' => 'F77COMPILE',
915 'compile_flag' => '-c',
916 'output_flag' => '-o',
917 'libtool_tag' => 'F77',
918 'lder' => 'F77LD',
919 'ld' => '$(F77)',
920 'pure' => 1,
921 'extensions' => ['.f', '.for']);
923 # Fortran
924 register_language ('name' => 'fc',
925 'Name' => 'Fortran',
926 'config_vars' => ['FC'],
927 'linker' => 'FCLINK',
928 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
929 'flags' => ['FCFLAGS'],
930 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
931 'ccer' => 'FC',
932 'compiler' => 'FCCOMPILE',
933 'compile_flag' => '-c',
934 'output_flag' => '-o',
935 'libtool_tag' => 'FC',
936 'lder' => 'FCLD',
937 'ld' => '$(FC)',
938 'pure' => 1,
939 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
941 # Preprocessed Fortran
942 register_language ('name' => 'ppfc',
943 'Name' => 'Preprocessed Fortran',
944 'config_vars' => ['FC'],
945 'linker' => 'FCLINK',
946 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
947 'lder' => 'FCLD',
948 'ld' => '$(FC)',
949 'flags' => ['FCFLAGS', 'CPPFLAGS'],
950 'ccer' => 'PPFC',
951 'compiler' => 'PPFCCOMPILE',
952 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
953 'compile_flag' => '-c',
954 'output_flag' => '-o',
955 'libtool_tag' => 'FC',
956 'pure' => 1,
957 'extensions' => ['.F90','.F95', '.F03', '.F08']);
959 # Preprocessed Fortran 77
960 #
961 # The current support for preprocessing Fortran 77 just involves
962 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
963 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
964 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
965 # for 'make' Version 3.76 Beta" (specifically, from info file
966 # '(make)Catalogue of Rules').
967 #
968 # A better approach would be to write an Autoconf test
969 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
970 # Fortran 77 compilers know how to do preprocessing. The Autoconf
971 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
972 # preprocessing capabilities, and then fall back on cpp (if cpp were
973 # available).
974 register_language ('name' => 'ppf77',
975 'Name' => 'Preprocessed Fortran 77',
976 'config_vars' => ['F77'],
977 'linker' => 'F77LINK',
978 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
979 'lder' => 'F77LD',
980 'ld' => '$(F77)',
981 'flags' => ['FFLAGS', 'CPPFLAGS'],
982 'ccer' => 'PPF77',
983 'compiler' => 'PPF77COMPILE',
984 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
985 'compile_flag' => '-c',
986 'output_flag' => '-o',
987 'libtool_tag' => 'F77',
988 'pure' => 1,
989 'extensions' => ['.F']);
991 # Ratfor.
992 register_language ('name' => 'ratfor',
993 'Name' => 'Ratfor',
994 'config_vars' => ['F77'],
995 'linker' => 'F77LINK',
996 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
997 'lder' => 'F77LD',
998 'ld' => '$(F77)',
999 'flags' => ['RFLAGS', 'FFLAGS'],
1000 # FIXME also FFLAGS.
1001 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1002 'ccer' => 'F77',
1003 'compiler' => 'RCOMPILE',
1004 'compile_flag' => '-c',
1005 'output_flag' => '-o',
1006 'libtool_tag' => 'F77',
1007 'pure' => 1,
1008 'extensions' => ['.r']);
1010 # Java via gcj.
1011 register_language ('name' => 'java',
1012 'Name' => 'Java',
1013 'config_vars' => ['GCJ'],
1014 'linker' => 'GCJLINK',
1015 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1016 'autodep' => 'GCJ',
1017 'flags' => ['GCJFLAGS'],
1018 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1019 'ccer' => 'GCJ',
1020 'compiler' => 'GCJCOMPILE',
1021 'compile_flag' => '-c',
1022 'output_flag' => '-o',
1023 'libtool_tag' => 'GCJ',
1024 'lder' => 'GCJLD',
1025 'ld' => '$(GCJ)',
1026 'pure' => 1,
1027 'extensions' => ['.java', '.class', '.zip', '.jar']);
1029 ################################################################
1031 # Error reporting functions.
1033 # err_am ($MESSAGE, [%OPTIONS])
1034 # -----------------------------
1035 # Uncategorized errors about the current Makefile.am.
1036 sub err_am ($;%)
1037 {
1038 msg_am ('error', @_);
1039 }
1041 # err_ac ($MESSAGE, [%OPTIONS])
1042 # -----------------------------
1043 # Uncategorized errors about configure.ac.
1044 sub err_ac ($;%)
1045 {
1046 msg_ac ('error', @_);
1047 }
1049 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1050 # ---------------------------------------
1051 # Messages about about the current Makefile.am.
1052 sub msg_am ($$;%)
1053 {
1054 my ($channel, $msg, %opts) = @_;
1055 msg $channel, "${am_file}.am", $msg, %opts;
1056 }
1058 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1059 # ---------------------------------------
1060 # Messages about about configure.ac.
1061 sub msg_ac ($$;%)
1062 {
1063 my ($channel, $msg, %opts) = @_;
1064 msg $channel, $configure_ac, $msg, %opts;
1065 }
1067 ################################################################
1069 # subst ($TEXT)
1070 # -------------
1071 # Return a configure-style substitution using the indicated text.
1072 # We do this to avoid having the substitutions directly in automake.in;
1073 # when we do that they are sometimes removed and this causes confusion
1074 # and bugs.
1075 sub subst ($)
1076 {
1077 my ($text) = @_;
1078 return '@' . $text . '@';
1079 }
1081 ################################################################
1084 # $BACKPATH
1085 # &backname ($RELDIR)
1086 # --------------------
1087 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1088 # For instance 'src/foo' => '../..'.
1089 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1090 sub backname ($)
1091 {
1092 my ($file) = @_;
1093 my @res;
1094 foreach (split (/\//, $file))
1095 {
1096 next if $_ eq '.' || $_ eq '';
1097 if ($_ eq '..')
1098 {
1099 pop @res
1100 or prog_error ("trying to reverse path '$file' pointing outside tree");
1101 }
1102 else
1103 {
1104 push (@res, '..');
1105 }
1106 }
1107 return join ('/', @res) || '.';
1108 }
1110 ################################################################
1112 # Silent rules handling functions.
1114 # verbose_var (NAME)
1115 # ------------------
1116 # The public variable stem used to implement silent rules.
1117 sub verbose_var ($)
1118 {
1119 my ($name) = @_;
1120 return 'AM_V_' . $name;
1121 }
1123 # verbose_private_var (NAME)
1124 # --------------------------
1125 # The naming policy for the private variables for silent rules.
1126 sub verbose_private_var ($)
1127 {
1128 my ($name) = @_;
1129 return 'am__v_' . $name;
1130 }
1132 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1133 # ----------------------------------------------------------
1134 # For silent rules, setup VAR and dispatcher, to expand to
1135 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
1136 # empty) if not.
1137 sub define_verbose_var ($$;$)
1138 {
1139 my ($name, $silent_val, $verbose_val) = @_;
1140 $verbose_val = '' unless defined $verbose_val;
1141 my $var = verbose_var ($name);
1142 my $pvar = verbose_private_var ($name);
1143 my $silent_var = $pvar . '_0';
1144 my $verbose_var = $pvar . '_1';
1145 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1146 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1147 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1148 # See AM_SILENT_RULES in m4/silent.m4.
1149 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1150 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
1151 INTERNAL);
1152 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1153 $silent_val, '', INTERNAL, VAR_ASIS)
1154 if (! vardef ($silent_var, TRUE));
1155 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1156 $verbose_val, '', INTERNAL, VAR_ASIS)
1157 if (! vardef ($verbose_var, TRUE));
1158 }
1160 # Above should not be needed in the general automake code.
1162 # verbose_flag (NAME)
1163 # -------------------
1164 # Contents of %VERBOSE%: variable to expand before rule command.
1165 sub verbose_flag ($)
1166 {
1167 my ($name) = @_;
1168 return '$(' . verbose_var ($name) . ')';
1169 }
1171 sub verbose_nodep_flag ($)
1172 {
1173 my ($name) = @_;
1174 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
1175 }
1177 # silent_flag
1178 # -----------
1179 # Contents of %SILENT%: variable to expand to '@' when silent.
1180 sub silent_flag ()
1181 {
1182 return verbose_flag ('at');
1183 }
1185 # define_verbose_tagvar (NAME)
1186 # ----------------------------
1187 # Engage the needed silent rules machinery for tag NAME.
1188 sub define_verbose_tagvar ($)
1189 {
1190 my ($name) = @_;
1191 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1192 }
1194 # define_verbose_texinfo
1195 # ----------------------
1196 # Engage the needed silent rules machinery for assorted texinfo commands.
1197 sub define_verbose_texinfo ()
1198 {
1199 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1200 foreach my $tag (@tagvars)
1201 {
1202 define_verbose_tagvar($tag);
1203 }
1204 define_verbose_var('texinfo', '-q');
1205 define_verbose_var('texidevnull', '> /dev/null');
1206 }
1208 # define_verbose_libtool
1209 # ----------------------
1210 # Engage the needed silent rules machinery for 'libtool --silent'.
1211 sub define_verbose_libtool ()
1212 {
1213 define_verbose_var ('lt', '--silent');
1214 return verbose_flag ('lt');
1215 }
1217 sub handle_silent ()
1218 {
1219 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1220 # used in make recipes to determine whether we are being run in
1221 # silent mode or not. The choice of the name derives from the LISP
1222 # convention of appending the letter 'P' to denote a predicate (see
1223 # also "the '-P' convention" in the Jargon File); we do so for lack
1224 # of a better convention.
1225 define_verbose_var ('P', 'false', ':');
1226 # *Always* provide the user with '$(AM_V_GEN)', unconditionally.
1227 define_verbose_tagvar ('GEN');
1228 define_verbose_var ('at', '@');
1229 }
1232 ################################################################
1235 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1236 sub handle_options
1237 {
1238 my $var = var ('AUTOMAKE_OPTIONS');
1239 if ($var)
1240 {
1241 if ($var->has_conditional_contents)
1242 {
1243 msg_var ('unsupported', $var,
1244 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1245 }
1246 my @options = map { { option => $_->[1], where => $_->[0] } }
1247 $var->value_as_list_recursive (cond_filter => TRUE,
1248 location => 1);
1249 return 1 if process_option_list (@options);
1250 }
1252 if ($strictness == GNITS)
1253 {
1254 set_option ('readme-alpha', INTERNAL);
1255 set_option ('std-options', INTERNAL);
1256 set_option ('check-news', INTERNAL);
1257 }
1259 return 0;
1260 }
1262 # shadow_unconditionally ($varname, $where)
1263 # -----------------------------------------
1264 # Return a $(variable) that contains all possible values
1265 # $varname can take.
1266 # If the VAR wasn't defined conditionally, return $(VAR).
1267 # Otherwise we create an am__VAR_DIST variable which contains
1268 # all possible values, and return $(am__VAR_DIST).
1269 sub shadow_unconditionally ($$)
1270 {
1271 my ($varname, $where) = @_;
1272 my $var = var $varname;
1273 if ($var->has_conditional_contents)
1274 {
1275 $varname = "am__${varname}_DIST";
1276 my @files = uniq ($var->value_as_list_recursive);
1277 define_pretty_variable ($varname, TRUE, $where, @files);
1278 }
1279 return "\$($varname)"
1280 }
1282 # check_user_variables (@LIST)
1283 # ----------------------------
1284 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1285 # otherwise.
1286 sub check_user_variables (@)
1287 {
1288 my @dont_override = @_;
1289 foreach my $flag (@dont_override)
1290 {
1291 my $var = var $flag;
1292 if ($var)
1293 {
1294 for my $cond ($var->conditions->conds)
1295 {
1296 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1297 {
1298 msg_cond_var ('gnu', $cond, $flag,
1299 "'$flag' is a user variable, "
1300 . "you should not override it;\n"
1301 . "use 'AM_$flag' instead");
1302 }
1303 }
1304 }
1305 }
1306 }
1308 # Call finish function for each language that was used.
1309 sub handle_languages
1310 {
1311 if (! option 'no-dependencies')
1312 {
1313 # Include auto-dep code. Don't include it if DEP_FILES would
1314 # be empty.
1315 if (keys %extension_seen && keys %dep_files)
1316 {
1317 # Set location of depcomp.
1318 &define_variable ('depcomp',
1319 "\$(SHELL) $am_config_aux_dir/depcomp",
1320 INTERNAL);
1321 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1323 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1325 my @deplist = sort keys %dep_files;
1326 # Generate each 'include' individually. Irix 6 make will
1327 # not properly include several files resulting from a
1328 # variable expansion; generating many separate includes
1329 # seems safest.
1330 $output_rules .= "\n";
1331 foreach my $iter (@deplist)
1332 {
1333 $output_rules .= (subst ('AMDEP_TRUE')
1334 . subst ('am__include')
1335 . ' '
1336 . subst ('am__quote')
1337 . $iter
1338 . subst ('am__quote')
1339 . "\n");
1340 }
1342 # Compute the set of directories to remove in distclean-depend.
1343 my @depdirs = uniq (map { dirname ($_) } @deplist);
1344 $output_rules .= &file_contents ('depend',
1345 new Automake::Location,
1346 DEPDIRS => "@depdirs");
1347 }
1348 }
1349 else
1350 {
1351 &define_variable ('depcomp', '', INTERNAL);
1352 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1353 }
1355 my %done;
1357 # Is the C linker needed?
1358 my $needs_c = 0;
1359 foreach my $ext (sort keys %extension_seen)
1360 {
1361 next unless $extension_map{$ext};
1363 my $lang = $languages{$extension_map{$ext}};
1365 my $rule_file = $lang->rule_file || 'depend2';
1367 # Get information on $LANG.
1368 my $pfx = $lang->autodep;
1369 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1371 my ($AMDEP, $FASTDEP) =
1372 (option 'no-dependencies' || $lang->autodep eq 'no')
1373 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1375 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1376 my $verbose_nodep = ($AMDEP eq 'FALSE')
1377 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1378 my $silent = silent_flag ();
1380 my %transform = ('EXT' => $ext,
1381 'PFX' => $pfx,
1382 'FPFX' => $fpfx,
1383 'AMDEP' => $AMDEP,
1384 'FASTDEP' => $FASTDEP,
1385 '-c' => $lang->compile_flag || '',
1386 # These are not used, but they need to be defined
1387 # so &transform do not complain.
1388 SUBDIROBJ => 0,
1389 'DERIVED-EXT' => 'BUG',
1390 DIST_SOURCE => 1,
1391 VERBOSE => $verbose,
1392 'VERBOSE-NODEP' => $verbose_nodep,
1393 SILENT => $silent,
1394 );
1396 # Generate the appropriate rules for this extension.
1397 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1398 || defined $lang->compile)
1399 {
1400 # Some C compilers don't support -c -o. Use it only if really
1401 # needed.
1402 my $output_flag = $lang->output_flag || '';
1403 $output_flag = '-o'
1404 if (! $output_flag
1405 && $lang->name eq 'c'
1406 && option 'subdir-objects');
1408 # Compute a possible derived extension.
1409 # This is not used by depend2.am.
1410 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1412 # When we output an inference rule like '.c.o:' we
1413 # have two cases to consider: either subdir-objects
1414 # is used, or it is not.
1415 #
1416 # In the latter case the rule is used to build objects
1417 # in the current directory, and dependencies always
1418 # go into './$(DEPDIR)/'. We can hard-code this value.
1419 #
1420 # In the former case the rule can be used to build
1421 # objects in sub-directories too. Dependencies should
1422 # go into the appropriate sub-directories, e.g.,
1423 # 'sub/$(DEPDIR)/'. The value of this directory
1424 # needs to be computed on-the-fly.
1425 #
1426 # DEPBASE holds the name of this directory, plus the
1427 # basename part of the object file (extensions Po, TPo,
1428 # Plo, TPlo will be added later as appropriate). It is
1429 # either hardcoded, or a shell variable ('$depbase') that
1430 # will be computed by the rule.
1431 my $depbase =
1432 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1433 $output_rules .=
1434 file_contents ($rule_file,
1435 new Automake::Location,
1436 %transform,
1437 GENERIC => 1,
1439 'DERIVED-EXT' => $der_ext,
1441 DEPBASE => $depbase,
1442 BASE => '$*',
1443 SOURCE => '$<',
1444 SOURCEFLAG => $sourceflags{$ext} || '',
1445 OBJ => '$@',
1446 OBJOBJ => '$@',
1447 LTOBJ => '$@',
1449 COMPILE => '$(' . $lang->compiler . ')',
1450 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1451 -o => $output_flag,
1452 SUBDIROBJ => !! option 'subdir-objects');
1453 }
1455 # Now include code for each specially handled object with this
1456 # language.
1457 my %seen_files = ();
1458 foreach my $file (@{$lang_specific_files{$lang->name}})
1459 {
1460 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1462 # We might see a given object twice, for instance if it is
1463 # used under different conditions.
1464 next if defined $seen_files{$obj};
1465 $seen_files{$obj} = 1;
1467 prog_error ("found " . $lang->name .
1468 " in handle_languages, but compiler not defined")
1469 unless defined $lang->compile;
1471 my $obj_compile = $lang->compile;
1473 # Rewrite each occurrence of 'AM_$flag' in the compile
1474 # rule into '${derived}_$flag' if it exists.
1475 for my $flag (@{$lang->flags})
1476 {
1477 my $val = "${derived}_$flag";
1478 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1479 if set_seen ($val);
1480 }
1482 my $libtool_tag = '';
1483 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1484 {
1485 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1486 }
1488 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1489 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1491 my $ltverbose = define_verbose_libtool ();
1492 my $obj_ltcompile =
1493 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1494 . "--mode=compile $obj_compile";
1496 # We _need_ '-o' for per object rules.
1497 my $output_flag = $lang->output_flag || '-o';
1499 my $depbase = dirname ($obj);
1500 $depbase = ''
1501 if $depbase eq '.';
1502 $depbase .= '/'
1503 unless $depbase eq '';
1504 $depbase .= '$(DEPDIR)/' . basename ($obj);
1506 $output_rules .=
1507 file_contents ($rule_file,
1508 new Automake::Location,
1509 %transform,
1510 GENERIC => 0,
1512 DEPBASE => $depbase,
1513 BASE => $obj,
1514 SOURCE => $source,
1515 SOURCEFLAG => $sourceflags{$srcext} || '',
1516 # Use $myext and not '.o' here, in case
1517 # we are actually building a new source
1518 # file -- e.g. via yacc.
1519 OBJ => "$obj$myext",
1520 OBJOBJ => "$obj.obj",
1521 LTOBJ => "$obj.lo",
1523 VERBOSE => $verbose,
1524 'VERBOSE-NODEP' => $verbose_nodep,
1525 SILENT => $silent,
1526 COMPILE => $obj_compile,
1527 LTCOMPILE => $obj_ltcompile,
1528 -o => $output_flag,
1529 %file_transform);
1530 }
1532 # The rest of the loop is done once per language.
1533 next if defined $done{$lang};
1534 $done{$lang} = 1;
1536 # Load the language dependent Makefile chunks.
1537 my %lang = map { uc ($_) => 0 } keys %languages;
1538 $lang{uc ($lang->name)} = 1;
1539 $output_rules .= file_contents ('lang-compile',
1540 new Automake::Location,
1541 %transform, %lang);
1543 # If the source to a program consists entirely of code from a
1544 # 'pure' language, for instance C++ or Fortran 77, then we
1545 # don't need the C compiler code. However if we run into
1546 # something unusual then we do generate the C code. There are
1547 # probably corner cases here that do not work properly.
1548 # People linking Java code to Fortran code deserve pain.
1549 $needs_c ||= ! $lang->pure;
1551 define_compiler_variable ($lang)
1552 if ($lang->compile);
1554 define_linker_variable ($lang)
1555 if ($lang->link);
1557 require_variables ("$am_file.am", $lang->Name . " source seen",
1558 TRUE, @{$lang->config_vars});
1560 # Call the finisher.
1561 $lang->finish;
1563 # Flags listed in '->flags' are user variables (per GNU Standards),
1564 # they should not be overridden in the Makefile...
1565 my @dont_override = @{$lang->flags};
1566 # ... and so is LDFLAGS.
1567 push @dont_override, 'LDFLAGS' if $lang->link;
1569 check_user_variables @dont_override;
1570 }
1572 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1573 # suffix rule was learned), don't bother with the C stuff. But if
1574 # anything else creeps in, then use it.
1575 $needs_c = 1
1576 if $need_link || suffix_rules_count > 1;
1578 if ($needs_c)
1579 {
1580 &define_compiler_variable ($languages{'c'})
1581 unless defined $done{$languages{'c'}};
1582 define_linker_variable ($languages{'c'});
1583 }
1584 }
1587 # append_exeext { PREDICATE } $MACRO
1588 # ----------------------------------
1589 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1590 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1591 # ignored.
1592 #
1593 # This is typically used on all filenames of *_PROGRAMS, and filenames
1594 # of TESTS that are programs.
1595 sub append_exeext (&$)
1596 {
1597 my ($pred, $macro) = @_;
1599 transform_variable_recursively
1600 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1601 sub {
1602 my ($subvar, $val, $cond, $full_cond) = @_;
1603 # Append $(EXEEXT) unless the user did it already, or it's a
1604 # @substitution@.
1605 $val .= '$(EXEEXT)'
1606 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1607 return $val;
1608 });
1609 }
1612 # Check to make sure a source defined in LIBOBJS is not explicitly
1613 # mentioned. This is a separate function (as opposed to being inlined
1614 # in handle_source_transform) because it isn't always appropriate to
1615 # do this check.
1616 sub check_libobjs_sources
1617 {
1618 my ($one_file, $unxformed) = @_;
1620 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1621 'dist_EXTRA_', 'nodist_EXTRA_')
1622 {
1623 my @files;
1624 my $varname = $prefix . $one_file . '_SOURCES';
1625 my $var = var ($varname);
1626 if ($var)
1627 {
1628 @files = $var->value_as_list_recursive;
1629 }
1630 elsif ($prefix eq '')
1631 {
1632 @files = ($unxformed . '.c');
1633 }
1634 else
1635 {
1636 next;
1637 }
1639 foreach my $file (@files)
1640 {
1641 err_var ($prefix . $one_file . '_SOURCES',
1642 "automatically discovered file '$file' should not" .
1643 " be explicitly mentioned")
1644 if defined $libsources{$file};
1645 }
1646 }
1647 }
1650 # @OBJECTS
1651 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1652 # -----------------------------------------------------------------------------
1653 # Does much of the actual work for handle_source_transform.
1654 # Arguments are:
1655 # $VAR is the name of the variable that the source filenames come from
1656 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1657 # $DERIVED is the name of resulting executable or library
1658 # $OBJ is the object extension (e.g., '.lo')
1659 # $FILE the source file to transform
1660 # %TRANSFORM contains extras arguments to pass to file_contents
1661 # when producing explicit rules
1662 # Result is a list of the names of objects
1663 # %linkers_used will be updated with any linkers needed
1664 sub handle_single_transform ($$$$$%)
1665 {
1666 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1667 my @files = ($_file);
1668 my @result = ();
1670 # Turn sources into objects. We use a while loop like this
1671 # because we might add to @files in the loop.
1672 while (scalar @files > 0)
1673 {
1674 $_ = shift @files;
1676 # Configure substitutions in _SOURCES variables are errors.
1677 if (/^\@.*\@$/)
1678 {
1679 my $parent_msg = '';
1680 $parent_msg = "\nand is referred to from '$topparent'"
1681 if $topparent ne $var->name;
1682 err_var ($var,
1683 "'" . $var->name . "' includes configure substitution '$_'"
1684 . $parent_msg . ";\nconfigure " .
1685 "substitutions are not allowed in _SOURCES variables");
1686 next;
1687 }
1689 # If the source file is in a subdirectory then the '.o' is put
1690 # into the current directory, unless the subdir-objects option
1691 # is in effect.
1693 # Split file name into base and extension.
1694 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1695 my $full = $_;
1696 my $directory = $1 || '';
1697 my $base = $2;
1698 my $extension = $3;
1700 # We must generate a rule for the object if it requires its own flags.
1701 my $renamed = 0;
1702 my ($linker, $object);
1704 # This records whether we've seen a derived source file (e.g.
1705 # yacc output).
1706 my $derived_source = 0;
1708 # This holds the 'aggregate context' of the file we are
1709 # currently examining. If the file is compiled with
1710 # per-object flags, then it will be the name of the object.
1711 # Otherwise it will be 'AM'. This is used by the target hook
1712 # language function.
1713 my $aggregate = 'AM';
1715 $extension = &derive_suffix ($extension, $obj);
1716 my $lang;
1717 if ($extension_map{$extension} &&
1718 ($lang = $languages{$extension_map{$extension}}))
1719 {
1720 # Found the language, so see what it says.
1721 &saw_extension ($extension);
1723 # Do we have per-executable flags for this executable?
1724 my $have_per_exec_flags = 0;
1725 my @peflags = @{$lang->flags};
1726 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1727 foreach my $flag (@peflags)
1728 {
1729 if (set_seen ("${derived}_$flag"))
1730 {
1731 $have_per_exec_flags = 1;
1732 last;
1733 }
1734 }
1736 # Note: computed subr call. The language rewrite function
1737 # should return one of the LANG_* constants. It could
1738 # also return a list whose first value is such a constant
1739 # and whose second value is a new source extension which
1740 # should be applied. This means this particular language
1741 # generates another source file which we must then process
1742 # further.
1743 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1744 defined &$subr or $subr = \&lang_sub_obj;
1745 my ($r, $source_extension)
1746 = &$subr ($directory, $base, $extension,
1747 $obj, $have_per_exec_flags, $var);
1748 # Skip this entry if we were asked not to process it.
1749 next if $r == LANG_IGNORE;
1751 # Now extract linker and other info.
1752 $linker = $lang->linker;
1754 my $this_obj_ext;
1755 if (defined $source_extension)
1756 {
1757 $this_obj_ext = $source_extension;
1758 $derived_source = 1;
1759 }
1760 else
1761 {
1762 $this_obj_ext = $obj;
1763 }
1764 $object = $base . $this_obj_ext;
1766 if ($have_per_exec_flags)
1767 {
1768 # We have a per-executable flag in effect for this
1769 # object. In this case we rewrite the object's
1770 # name to ensure it is unique.
1772 # We choose the name 'DERIVED_OBJECT' to ensure
1773 # (1) uniqueness, and (2) continuity between
1774 # invocations. However, this will result in a
1775 # name that is too long for losing systems, in
1776 # some situations. So we provide _SHORTNAME to
1777 # override.
1779 my $dname = $derived;
1780 my $var = var ($derived . '_SHORTNAME');
1781 if ($var)
1782 {
1783 # FIXME: should use the same Condition as
1784 # the _SOURCES variable. But this is really
1785 # silly overkill -- nobody should have
1786 # conditional shortnames.
1787 $dname = $var->variable_value;
1788 }
1789 $object = $dname . '-' . $object;
1791 prog_error ($lang->name . " flags defined without compiler")
1792 if ! defined $lang->compile;
1794 $renamed = 1;
1795 }
1797 # If rewrite said it was ok, put the object into a
1798 # subdir.
1799 if ($r == LANG_SUBDIR && $directory ne '')
1800 {
1801 $object = $directory . '/' . $object;
1802 }
1804 # If the object file has been renamed (because per-target
1805 # flags are used) we cannot compile the file with an
1806 # inference rule: we need an explicit rule.
1807 #
1808 # If the source is in a subdirectory and the object is in
1809 # the current directory, we also need an explicit rule.
1810 #
1811 # If both source and object files are in a subdirectory
1812 # (this happens when the subdir-objects option is used),
1813 # then the inference will work.
1814 #
1815 # The latter case deserves a historical note. When the
1816 # subdir-objects option was added on 1999-04-11 it was
1817 # thought that inferences rules would work for
1818 # subdirectory objects too. Later, on 1999-11-22,
1819 # automake was changed to output explicit rules even for
1820 # subdir-objects. Nobody remembers why, but this occurred
1821 # soon after the merge of the user-dep-gen-branch so it
1822 # might be related. In late 2003 people complained about
1823 # the size of the generated Makefile.ins (libgcj, with
1824 # 2200+ subdir objects was reported to have a 9MB
1825 # Makefile), so we now rely on inference rules again.
1826 # Maybe we'll run across the same issue as in the past,
1827 # but at least this time we can document it. However since
1828 # dependency tracking has evolved it is possible that
1829 # our old problem no longer exists.
1830 # Using inference rules for subdir-objects has been tested
1831 # with GNU make, Solaris make, Ultrix make, BSD make,
1832 # HP-UX make, and OSF1 make successfully.
1833 if ($renamed
1834 || ($directory ne '' && ! option 'subdir-objects')
1835 # We must also use specific rules for a nodist_ source
1836 # if its language requests it.
1837 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1838 {
1839 my $obj_sans_ext = substr ($object, 0,
1840 - length ($this_obj_ext));
1841 my $full_ansi;
1842 if ($directory ne '')
1843 {
1844 $full_ansi = $directory . '/' . $base . $extension;
1845 }
1846 else
1847 {
1848 $full_ansi = $base . $extension;
1849 }
1851 my @specifics = ($full_ansi, $obj_sans_ext,
1852 # Only use $this_obj_ext in the derived
1853 # source case because in the other case we
1854 # *don't* want $(OBJEXT) to appear here.
1855 ($derived_source ? $this_obj_ext : '.o'),
1856 $extension);
1858 # If we renamed the object then we want to use the
1859 # per-executable flag name. But if this is simply a
1860 # subdir build then we still want to use the AM_ flag
1861 # name.
1862 if ($renamed)
1863 {
1864 unshift @specifics, $derived;
1865 $aggregate = $derived;
1866 }
1867 else
1868 {
1869 unshift @specifics, 'AM';
1870 }
1872 # Each item on this list is a reference to a list consisting
1873 # of four values followed by additional transform flags for
1874 # file_contents. The four values are the derived flag prefix
1875 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1876 # source file, the base name of the output file, and
1877 # the extension for the object file.
1878 push (@{$lang_specific_files{$lang->name}},
1879 [@specifics, %transform]);
1880 }
1881 }
1882 elsif ($extension eq $obj)
1883 {
1884 # This is probably the result of a direct suffix rule.
1885 # In this case we just accept the rewrite.
1886 $object = "$base$extension";
1887 $object = "$directory/$object" if $directory ne '';
1888 $linker = '';
1889 }
1890 else
1891 {
1892 # No error message here. Used to have one, but it was
1893 # very unpopular.
1894 # FIXME: we could potentially do more processing here,
1895 # perhaps treating the new extension as though it were a
1896 # new source extension (as above). This would require
1897 # more restructuring than is appropriate right now.
1898 next;
1899 }
1901 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1902 if (defined $object_map{$object}
1903 && $object_map{$object} ne $full);
1905 my $comp_val = (($object =~ /\.lo$/)
1906 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1907 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1908 if (defined $object_compilation_map{$comp_obj}
1909 && $object_compilation_map{$comp_obj} != 0
1910 # Only see the error once.
1911 && ($object_compilation_map{$comp_obj}
1912 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1913 && $object_compilation_map{$comp_obj} != $comp_val)
1914 {
1915 err_am "object '$comp_obj' created both with libtool and without";
1916 }
1917 $object_compilation_map{$comp_obj} |= $comp_val;
1919 if (defined $lang)
1920 {
1921 # Let the language do some special magic if required.
1922 $lang->target_hook ($aggregate, $object, $full, %transform);
1923 }
1925 if ($derived_source)
1926 {
1927 prog_error ($lang->name . " has automatic dependency tracking")
1928 if $lang->autodep ne 'no';
1929 # Make sure this new source file is handled next. That will
1930 # make it appear to be at the right place in the list.
1931 unshift (@files, $object);
1932 # Distribute derived sources unless the source they are
1933 # derived from is not.
1934 &push_dist_common ($object)
1935 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1936 next;
1937 }
1939 $linkers_used{$linker} = 1;
1941 push (@result, $object);
1943 if (! defined $object_map{$object})
1944 {
1945 my @dep_list = ();
1946 $object_map{$object} = $full;
1948 # If resulting object is in subdir, we need to make
1949 # sure the subdir exists at build time.
1950 if ($object =~ /\//)
1951 {
1952 # FIXME: check that $DIRECTORY is somewhere in the
1953 # project
1955 # For Java, the way we're handling it right now, a
1956 # '..' component doesn't make sense.
1957 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1958 {
1959 err_am "'$full' should not contain a '..' component";
1960 }
1962 # Make sure *all* objects files in the subdirectory are
1963 # removed by "make mostlyclean". Not only this is more
1964 # efficient than listing the object files to be removed
1965 # individually (which would cause an 'rm' invocation for
1966 # each of them -- very inefficient, see bug#10697), it
1967 # would also leave stale object files in the subdirectory
1968 # whenever a source file there is removed or renamed.
1969 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1970 if ($object =~ /\.lo$/)
1971 {
1972 # If we have a libtool object, then we also must remove
1973 # any '.lo' objects in its same subdirectory.
1974 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1975 # Remember to cleanup .libs/ in this directory.
1976 $libtool_clean_directories{$directory} = 1;
1977 }
1979 push (@dep_list, require_build_directory ($directory));
1981 # If we're generating dependencies, we also want
1982 # to make sure that the appropriate subdir of the
1983 # .deps directory is created.
1984 push (@dep_list,
1985 require_build_directory ($directory . '/$(DEPDIR)'))
1986 unless option 'no-dependencies';
1987 }
1989 &pretty_print_rule ($object . ':', "\t", @dep_list)
1990 if scalar @dep_list > 0;
1991 }
1993 # Transform .o or $o file into .P file (for automatic
1994 # dependency code).
1995 # Properly flatten multiple adjacent slashes, as Solaris 10 make
1996 # might fail over them in an include statement.
1997 # Leading double slashes may be special, as per Posix, so deal
1998 # with them carefully.
1999 if ($lang && $lang->autodep ne 'no')
2000 {
2001 my $depfile = $object;
2002 $depfile =~ s/\.([^.]*)$/.P$1/;
2003 $depfile =~ s/\$\(OBJEXT\)$/o/;
2004 my $maybe_extra_leading_slash = '';
2005 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2006 $depfile =~ s,/+,/,g;
2007 my $basename = basename ($depfile);
2008 # This might make $dirname empty, but we account for that below.
2009 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2010 $dirname = $maybe_extra_leading_slash . $dirname;
2011 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2012 }
2013 }
2015 return @result;
2016 }
2019 # $LINKER
2020 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2021 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2022 # ---------------------------------------------------------------------------
2023 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2024 #
2025 # Arguments are:
2026 # $VAR is the name of the _SOURCES variable
2027 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2028 # it will be generated and returned).
2029 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2030 # work done to determine the linker will be).
2031 # $ONE_FILE is the canonical (transformed) name of object to build
2032 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2033 # $TOPPARENT is the _SOURCES variable being processed.
2034 # $WHERE context into which this definition is done
2035 # %TRANSFORM extra arguments to pass to file_contents when producing
2036 # rules
2037 #
2038 # Result is a pair ($LINKER, $OBJVAR):
2039 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2040 sub define_objects_from_sources ($$$$$$$%)
2041 {
2042 my ($var, $objvar, $nodefine, $one_file,
2043 $obj, $topparent, $where, %transform) = @_;
2045 my $needlinker = "";
2047 transform_variable_recursively
2048 ($var, $objvar, 'am__objects', $nodefine, $where,
2049 # The transform code to run on each filename.
2050 sub {
2051 my ($subvar, $val, $cond, $full_cond) = @_;
2052 my @trans = handle_single_transform ($subvar, $topparent,
2053 $one_file, $obj, $val,
2054 %transform);
2055 $needlinker = "true" if @trans;
2056 return @trans;
2057 });
2059 return $needlinker;
2060 }
2063 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2064 # -----------------------------------------------------------------------------
2065 # Handle SOURCE->OBJECT transform for one program or library.
2066 # Arguments are:
2067 # canonical (transformed) name of target to build
2068 # actual target of object to build
2069 # object extension (i.e., either '.o' or '$o')
2070 # location of the source variable
2071 # extra arguments to pass to file_contents when producing rules
2072 # Return the name of the linker variable that must be used.
2073 # Empty return means just use 'LINK'.
2074 sub handle_source_transform ($$$$%)
2075 {
2076 # one_file is canonical name. unxformed is given name. obj is
2077 # object extension.
2078 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2080 my $linker = '';
2082 # No point in continuing if _OBJECTS is defined.
2083 return if reject_var ($one_file . '_OBJECTS',
2084 $one_file . '_OBJECTS should not be defined');
2086 my %used_pfx = ();
2087 my $needlinker;
2088 %linkers_used = ();
2089 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2090 'dist_EXTRA_', 'nodist_EXTRA_')
2091 {
2092 my $varname = $prefix . $one_file . "_SOURCES";
2093 my $var = var $varname;
2094 next unless $var;
2096 # We are going to define _OBJECTS variables using the prefix.
2097 # Then we glom them all together. So we can't use the null
2098 # prefix here as we need it later.
2099 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2101 # Keep track of which prefixes we saw.
2102 $used_pfx{$xpfx} = 1
2103 unless $prefix =~ /EXTRA_/;
2105 push @sources, "\$($varname)";
2106 push @dist_sources, shadow_unconditionally ($varname, $where)
2107 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2109 $needlinker |=
2110 define_objects_from_sources ($varname,
2111 $xpfx . $one_file . '_OBJECTS',
2112 $prefix =~ /EXTRA_/,
2113 $one_file, $obj, $varname, $where,
2114 DIST_SOURCE => ($prefix !~ /^nodist_/),
2115 %transform);
2116 }
2117 if ($needlinker)
2118 {
2119 $linker ||= &resolve_linker (%linkers_used);
2120 }
2122 my @keys = sort keys %used_pfx;
2123 if (scalar @keys == 0)
2124 {
2125 # The default source for libfoo.la is libfoo.c, but for
2126 # backward compatibility we first look at libfoo_la.c,
2127 # if no default source suffix is given.
2128 my $old_default_source = "$one_file.c";
2129 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2130 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2131 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2132 if $default_source_ext =~ /[\t ]/;
2133 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2134 if ($old_default_source ne $default_source
2135 && !$ext_var
2136 && (rule $old_default_source
2137 || rule '$(srcdir)/' . $old_default_source
2138 || rule '${srcdir}/' . $old_default_source
2139 || -f $old_default_source))
2140 {
2141 my $loc = $where->clone;
2142 $loc->pop_context;
2143 msg ('obsolete', $loc,
2144 "the default source for '$unxformed' has been changed "
2145 . "to '$default_source'.\n(Using '$old_default_source' for "
2146 . "backward compatibility.)");
2147 $default_source = $old_default_source;
2148 }
2149 # If a rule exists to build this source with a $(srcdir)
2150 # prefix, use that prefix in our variables too. This is for
2151 # the sake of BSD Make.
2152 if (rule '$(srcdir)/' . $default_source
2153 || rule '${srcdir}/' . $default_source)
2154 {
2155 $default_source = '$(srcdir)/' . $default_source;
2156 }
2158 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2159 push (@sources, $default_source);
2160 push (@dist_sources, $default_source);
2162 %linkers_used = ();
2163 my (@result) =
2164 handle_single_transform ($one_file . '_SOURCES',
2165 $one_file . '_SOURCES',
2166 $one_file, $obj,
2167 $default_source, %transform);
2168 $linker ||= &resolve_linker (%linkers_used);
2169 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2170 }
2171 else
2172 {
2173 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2174 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2175 }
2177 # If we want to use 'LINK' we must make sure it is defined.
2178 if ($linker eq '')
2179 {
2180 $need_link = 1;
2181 }
2183 return $linker;
2184 }
2187 # handle_lib_objects ($XNAME, $VAR)
2188 # ---------------------------------
2189 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2190 # Also, generate _DEPENDENCIES variable if appropriate.
2191 # Arguments are:
2192 # transformed name of object being built, or empty string if no object
2193 # name of _LDADD/_LIBADD-type variable to examine
2194 # Returns 1 if LIBOBJS seen, 0 otherwise.
2195 sub handle_lib_objects
2196 {
2197 my ($xname, $varname) = @_;
2199 my $var = var ($varname);
2200 prog_error "'$varname' undefined"
2201 unless $var;
2202 prog_error "unexpected variable name '$varname'"
2203 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2204 my $prefix = $1 || 'AM_';
2206 my $seen_libobjs = 0;
2207 my $flagvar = 0;
2209 transform_variable_recursively
2210 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2211 ! $xname, INTERNAL,
2212 # Transformation function, run on each filename.
2213 sub {
2214 my ($subvar, $val, $cond, $full_cond) = @_;
2216 if ($val =~ /^-/)
2217 {
2218 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2219 if ($val !~ /^-[lL]/ &&
2220 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2221 # for Libtool libraries or programs. (Actually we are a bit
2222 # lax here since this code also applies to non-libtool
2223 # libraries or programs, for which -dlopen and -dlopreopen
2224 # are pure nonsense. Diagnosing this doesn't seem very
2225 # important: the developer will quickly get complaints from
2226 # the linker.)
2227 $val !~ /^-dl(?:pre)?open$/ &&
2228 # Only get this error once.
2229 ! $flagvar)
2230 {
2231 $flagvar = 1;
2232 # FIXME: should display a stack of nested variables
2233 # as context when $var != $subvar.
2234 err_var ($var, "linker flags such as '$val' belong in "
2235 . "'${prefix}LDFLAGS'");
2236 }
2237 return ();
2238 }
2239 elsif ($val !~ /^\@.*\@$/)
2240 {
2241 # Assume we have a file of some sort, and output it into the
2242 # dependency variable. Autoconf substitutions are not output;
2243 # rarely is a new dependency substituted into e.g. foo_LDADD
2244 # -- but bad things (e.g. -lX11) are routinely substituted.
2245 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2246 # and handled specially below.
2247 return $val;
2248 }
2249 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2250 {
2251 handle_LIBOBJS ($subvar, $cond, $1);
2252 $seen_libobjs = 1;
2253 return $val;
2254 }
2255 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2256 {
2257 handle_ALLOCA ($subvar, $cond, $1);
2258 return $val;
2259 }
2260 else
2261 {
2262 return ();
2263 }
2264 });
2266 return $seen_libobjs;
2267 }
2269 # handle_LIBOBJS_or_ALLOCA ($VAR)
2270 # -------------------------------
2271 # Definitions common to LIBOBJS and ALLOCA.
2272 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2273 sub handle_LIBOBJS_or_ALLOCA ($)
2274 {
2275 my ($var) = @_;
2277 my $dir = '';
2279 # If LIBOBJS files must be built in another directory we have
2280 # to define LIBOBJDIR and ensure the files get cleaned.
2281 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2282 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2283 if ($config_libobj_dir
2284 && $relative_dir ne $config_libobj_dir)
2285 {
2286 if (option 'subdir-objects')
2287 {
2288 # In the top-level Makefile we do not use $(top_builddir), because
2289 # we are already there, and since the targets are built without
2290 # a $(top_builddir), it helps BSD Make to match them with
2291 # dependencies.
2292 $dir = "$config_libobj_dir/"
2293 if $config_libobj_dir ne '.';
2294 $dir = backname ($relative_dir) . "/$dir"
2295 if $relative_dir ne '.';
2296 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2297 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2298 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2299 # be created by libtool as a side-effect of creating LTLIBOBJS).
2300 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2301 }
2302 else
2303 {
2304 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2305 . " 'subdir-objects' is not set");
2306 }
2307 }
2309 return $dir;
2310 }
2312 sub handle_LIBOBJS ($$$)
2313 {
2314 my ($var, $cond, $lt) = @_;
2315 my $myobjext = $lt ? 'lo' : 'o';
2316 $lt ||= '';
2318 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2319 if ! keys %libsources;
2321 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2323 foreach my $iter (keys %libsources)
2324 {
2325 if ($iter =~ /\.[cly]$/)
2326 {
2327 &saw_extension ($&);
2328 &saw_extension ('.c');
2329 }
2331 if ($iter =~ /\.h$/)
2332 {
2333 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2334 }
2335 elsif ($iter ne 'alloca.c')
2336 {
2337 my $rewrite = $iter;
2338 $rewrite =~ s/\.c$/.P$myobjext/;
2339 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2340 $rewrite = "^" . quotemeta ($iter) . "\$";
2341 # Only require the file if it is not a built source.
2342 my $bs = var ('BUILT_SOURCES');
2343 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2344 {
2345 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2346 }
2347 }
2348 }
2349 }
2351 sub handle_ALLOCA ($$$)
2352 {
2353 my ($var, $cond, $lt) = @_;
2354 my $myobjext = $lt ? 'lo' : 'o';
2355 $lt ||= '';
2356 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2358 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2359 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2360 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2361 &saw_extension ('.c');
2362 }
2364 # Canonicalize the input parameter
2365 sub canonicalize
2366 {
2367 my ($string) = @_;
2368 $string =~ tr/A-Za-z0-9_\@/_/c;
2369 return $string;
2370 }
2372 # Canonicalize a name, and check to make sure the non-canonical name
2373 # is never used. Returns canonical name. Arguments are name and a
2374 # list of suffixes to check for.
2375 sub check_canonical_spelling
2376 {
2377 my ($name, @suffixes) = @_;
2379 my $xname = &canonicalize ($name);
2380 if ($xname ne $name)
2381 {
2382 foreach my $xt (@suffixes)
2383 {
2384 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2385 }
2386 }
2388 return $xname;
2389 }
2392 # handle_compile ()
2393 # -----------------
2394 # Set up the compile suite.
2395 sub handle_compile ()
2396 {
2397 return if ! $must_handle_compiled_objects;
2399 # Boilerplate.
2400 my $default_includes = '';
2401 if (! option 'nostdinc')
2402 {
2403 my @incs = ('-I.', subst ('am__isrc'));
2405 my $var = var 'CONFIG_HEADER';
2406 if ($var)
2407 {
2408 foreach my $hdr (split (' ', $var->variable_value))
2409 {
2410 push @incs, '-I' . dirname ($hdr);
2411 }
2412 }
2413 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2414 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2415 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2416 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2417 # to just put @am__isrc@ right after '-I.', without a space.
2418 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2419 }
2421 my (@mostly_rms, @dist_rms);
2422 foreach my $item (sort keys %compile_clean_files)
2423 {
2424 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2425 {
2426 push (@mostly_rms, "\t-rm -f $item");
2427 }
2428 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2429 {
2430 push (@dist_rms, "\t-rm -f $item");
2431 }
2432 else
2433 {
2434 prog_error 'invalid entry in %compile_clean_files';
2435 }
2436 }
2438 my ($coms, $vars, $rules) =
2439 &file_contents_internal (1, "$libdir/am/compile.am",
2440 new Automake::Location,
2441 ('DEFAULT_INCLUDES' => $default_includes,
2442 'MOSTLYRMS' => join ("\n", @mostly_rms),
2443 'DISTRMS' => join ("\n", @dist_rms)));
2444 $output_vars .= $vars;
2445 $output_rules .= "$coms$rules";
2446 }
2448 # handle_libtool ()
2449 # -----------------
2450 # Handle libtool rules.
2451 sub handle_libtool
2452 {
2453 return unless var ('LIBTOOL');
2455 # Libtool requires some files, but only at top level.
2456 # (Starting with Libtool 2.0 we do not have to bother. These
2457 # requirements are done with AC_REQUIRE_AUX_FILE.)
2458 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2459 if $relative_dir eq '.' && ! $libtool_new_api;
2461 my @libtool_rms;
2462 foreach my $item (sort keys %libtool_clean_directories)
2463 {
2464 my $dir = ($item eq '.') ? '' : "$item/";
2465 # .libs is for Unix, _libs for DOS.
2466 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2467 }
2469 check_user_variables 'LIBTOOLFLAGS';
2471 # Output the libtool compilation rules.
2472 $output_rules .= &file_contents ('libtool',
2473 new Automake::Location,
2474 LTRMS => join ("\n", @libtool_rms));
2475 }
2477 # handle_programs ()
2478 # ------------------
2479 # Handle C programs.
2480 sub handle_programs
2481 {
2482 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2483 'bin', 'sbin', 'libexec', 'pkglibexec',
2484 'noinst', 'check');
2485 return if ! @proglist;
2486 $must_handle_compiled_objects = 1;
2488 my $seen_global_libobjs =
2489 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2491 foreach my $pair (@proglist)
2492 {
2493 my ($where, $one_file) = @$pair;
2495 my $seen_libobjs = 0;
2496 my $obj = '.$(OBJEXT)';
2498 $known_programs{$one_file} = $where;
2500 # Canonicalize names and check for misspellings.
2501 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2502 '_SOURCES', '_OBJECTS',
2503 '_DEPENDENCIES');
2505 $where->push_context ("while processing program '$one_file'");
2506 $where->set (INTERNAL->get);
2508 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2509 NONLIBTOOL => 1, LIBTOOL => 0);
2511 if (var ($xname . "_LDADD"))
2512 {
2513 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2514 }
2515 else
2516 {
2517 # User didn't define prog_LDADD override. So do it.
2518 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2520 # This does a bit too much work. But we need it to
2521 # generate _DEPENDENCIES when appropriate.
2522 if (var ('LDADD'))
2523 {
2524 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2525 }
2526 }
2528 reject_var ($xname . '_LIBADD',
2529 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2531 set_seen ($xname . '_DEPENDENCIES');
2532 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2533 set_seen ($xname . '_LDFLAGS');
2535 # Determine program to use for link.
2536 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2537 $vlink = verbose_flag ($vlink || 'GEN');
2539 # If the resulting program lies in a subdirectory,
2540 # ensure that the directory exists before we need it.
2541 my $dirstamp = require_build_directory_maybe ($one_file);
2543 $libtool_clean_directories{dirname ($one_file)} = 1;
2545 $output_rules .= &file_contents ('program',
2546 $where,
2547 PROGRAM => $one_file,
2548 XPROGRAM => $xname,
2549 XLINK => $xlink,
2550 VERBOSE => $vlink,
2551 DIRSTAMP => $dirstamp,
2552 EXEEXT => '$(EXEEXT)');
2554 if ($seen_libobjs || $seen_global_libobjs)
2555 {
2556 if (var ($xname . '_LDADD'))
2557 {
2558 &check_libobjs_sources ($xname, $xname . '_LDADD');
2559 }
2560 elsif (var ('LDADD'))
2561 {
2562 &check_libobjs_sources ($xname, 'LDADD');
2563 }
2564 }
2565 }
2566 }
2569 # handle_libraries ()
2570 # -------------------
2571 # Handle libraries.
2572 sub handle_libraries
2573 {
2574 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2575 'lib', 'pkglib', 'noinst', 'check');
2576 return if ! @liblist;
2577 $must_handle_compiled_objects = 1;
2579 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2580 'noinst', 'check');
2582 if (@prefix)
2583 {
2584 my $var = rvar ($prefix[0] . '_LIBRARIES');
2585 $var->requires_variables ('library used', 'RANLIB');
2586 }
2588 &define_variable ('AR', 'ar', INTERNAL);
2589 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2590 &define_verbose_tagvar ('AR');
2592 foreach my $pair (@liblist)
2593 {
2594 my ($where, $onelib) = @$pair;
2596 my $seen_libobjs = 0;
2597 # Check that the library fits the standard naming convention.
2598 my $bn = basename ($onelib);
2599 if ($bn !~ /^lib.*\.a$/)
2600 {
2601 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2602 my $suggestion = dirname ($onelib) . "/$bn";
2603 $suggestion =~ s|^\./||g;
2604 msg ('error-gnu/warn', $where,
2605 "'$onelib' is not a standard library name\n"
2606 . "did you mean '$suggestion'?")
2607 }
2609 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2611 $where->push_context ("while processing library '$onelib'");
2612 $where->set (INTERNAL->get);
2614 my $obj = '.$(OBJEXT)';
2616 # Canonicalize names and check for misspellings.
2617 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2618 '_OBJECTS', '_DEPENDENCIES',
2619 '_AR');
2621 if (! var ($xlib . '_AR'))
2622 {
2623 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2624 }
2626 # Generate support for conditional object inclusion in
2627 # libraries.
2628 if (var ($xlib . '_LIBADD'))
2629 {
2630 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2631 {
2632 $seen_libobjs = 1;
2633 }
2634 }
2635 else
2636 {
2637 &define_variable ($xlib . "_LIBADD", '', $where);
2638 }
2640 reject_var ($xlib . '_LDADD',
2641 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2643 # Make sure we at look at this.
2644 set_seen ($xlib . '_DEPENDENCIES');
2645 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2647 &handle_source_transform ($xlib, $onelib, $obj, $where,
2648 NONLIBTOOL => 1, LIBTOOL => 0);
2650 # If the resulting library lies in a subdirectory,
2651 # make sure this directory will exist.
2652 my $dirstamp = require_build_directory_maybe ($onelib);
2653 my $verbose = verbose_flag ('AR');
2654 my $silent = silent_flag ();
2656 $output_rules .= &file_contents ('library',
2657 $where,
2658 VERBOSE => $verbose,
2659 SILENT => $silent,
2660 LIBRARY => $onelib,
2661 XLIBRARY => $xlib,
2662 DIRSTAMP => $dirstamp);
2664 if ($seen_libobjs)
2665 {
2666 if (var ($xlib . '_LIBADD'))
2667 {
2668 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2669 }
2670 }
2672 if (! $seen_ar)
2673 {
2674 msg ('extra-portability', $where,
2675 "'$onelib': linking libraries using a non-POSIX\n"
2676 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2677 }
2678 }
2679 }
2682 # handle_ltlibraries ()
2683 # ---------------------
2684 # Handle shared libraries.
2685 sub handle_ltlibraries
2686 {
2687 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2688 'noinst', 'lib', 'pkglib', 'check');
2689 return if ! @liblist;
2690 $must_handle_compiled_objects = 1;
2692 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2693 'noinst', 'check');
2695 if (@prefix)
2696 {
2697 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2698 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2699 }
2701 my %instdirs = ();
2702 my %instsubdirs = ();
2703 my %instconds = ();
2704 my %liblocations = (); # Location (in Makefile.am) of each library.
2706 foreach my $key (@prefix)
2707 {
2708 # Get the installation directory of each library.
2709 my $dir = $key;
2710 my $strip_subdir = 1;
2711 if ($dir =~ /^nobase_/)
2712 {
2713 $dir =~ s/^nobase_//;
2714 $strip_subdir = 0;
2715 }
2716 my $var = rvar ($key . '_LTLIBRARIES');
2718 # We reject libraries which are installed in several places
2719 # in the same condition, because we can only specify one
2720 # '-rpath' option.
2721 $var->traverse_recursively
2722 (sub
2723 {
2724 my ($var, $val, $cond, $full_cond) = @_;
2725 my $hcond = $full_cond->human;
2726 my $where = $var->rdef ($cond)->location;
2727 my $ldir = '';
2728 $ldir = '/' . dirname ($val)
2729 if (!$strip_subdir);
2730 # A library cannot be installed in different directories
2731 # in overlapping conditions.
2732 if (exists $instconds{$val})
2733 {
2734 my ($msg, $acond) =
2735 $instconds{$val}->ambiguous_p ($val, $full_cond);
2737 if ($msg)
2738 {
2739 error ($where, $msg, partial => 1);
2740 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2741 $dirtxt = "built for '$dir'"
2742 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2743 my $dircond =
2744 $full_cond->true ? "" : " in condition $hcond";
2746 error ($where, "'$val' should be $dirtxt$dircond ...",
2747 partial => 1);
2749 my $hacond = $acond->human;
2750 my $adir = $instdirs{$val}{$acond};
2751 my $adirtxt = "installed in '$adir'";
2752 $adirtxt = "built for '$adir'"
2753 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2754 || $adir eq 'check');
2755 my $adircond = $acond->true ? "" : " in condition $hacond";
2757 my $onlyone = ($dir ne $adir) ?
2758 ("\nLibtool libraries can be built for only one "
2759 . "destination") : "";
2761 error ($liblocations{$val}{$acond},
2762 "... and should also be $adirtxt$adircond.$onlyone");
2763 return;
2764 }
2765 }
2766 else
2767 {
2768 $instconds{$val} = new Automake::DisjConditions;
2769 }
2770 $instdirs{$val}{$full_cond} = $dir;
2771 $instsubdirs{$val}{$full_cond} = $ldir;
2772 $liblocations{$val}{$full_cond} = $where;
2773 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2774 },
2775 sub
2776 {
2777 return ();
2778 },
2779 skip_ac_subst => 1);
2780 }
2782 foreach my $pair (@liblist)
2783 {
2784 my ($where, $onelib) = @$pair;
2786 my $seen_libobjs = 0;
2787 my $obj = '.lo';
2789 # Canonicalize names and check for misspellings.
2790 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2791 '_SOURCES', '_OBJECTS',
2792 '_DEPENDENCIES');
2794 # Check that the library fits the standard naming convention.
2795 my $libname_rx = '^lib.*\.la';
2796 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2797 my $ldvar2 = var ('LDFLAGS');
2798 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2799 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2800 {
2801 # Relax name checking for libtool modules.
2802 $libname_rx = '\.la';
2803 }
2805 my $bn = basename ($onelib);
2806 if ($bn !~ /$libname_rx$/)
2807 {
2808 my $type = 'library';
2809 if ($libname_rx eq '\.la')
2810 {
2811 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2812 $type = 'module';
2813 }
2814 else
2815 {
2816 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2817 }
2818 my $suggestion = dirname ($onelib) . "/$bn";
2819 $suggestion =~ s|^\./||g;
2820 msg ('error-gnu/warn', $where,
2821 "'$onelib' is not a standard libtool $type name\n"
2822 . "did you mean '$suggestion'?")
2823 }
2825 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2827 $where->push_context ("while processing Libtool library '$onelib'");
2828 $where->set (INTERNAL->get);
2830 # Make sure we look at these.
2831 set_seen ($xlib . '_LDFLAGS');
2832 set_seen ($xlib . '_DEPENDENCIES');
2833 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2835 # Generate support for conditional object inclusion in
2836 # libraries.
2837 if (var ($xlib . '_LIBADD'))
2838 {
2839 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2840 {
2841 $seen_libobjs = 1;
2842 }
2843 }
2844 else
2845 {
2846 &define_variable ($xlib . "_LIBADD", '', $where);
2847 }
2849 reject_var ("${xlib}_LDADD",
2850 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2853 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2854 NONLIBTOOL => 0, LIBTOOL => 1);
2856 # Determine program to use for link.
2857 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2858 $vlink = verbose_flag ($vlink || 'GEN');
2860 my $rpathvar = "am_${xlib}_rpath";
2861 my $rpath = "\$($rpathvar)";
2862 foreach my $rcond ($instconds{$onelib}->conds)
2863 {
2864 my $val;
2865 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2866 || $instdirs{$onelib}{$rcond} eq 'noinst'
2867 || $instdirs{$onelib}{$rcond} eq 'check')
2868 {
2869 # It's an EXTRA_ library, so we can't specify -rpath,
2870 # because we don't know where the library will end up.
2871 # The user probably knows, but generally speaking automake
2872 # doesn't -- and in fact configure could decide
2873 # dynamically between two different locations.
2874 $val = '';
2875 }
2876 else
2877 {
2878 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2879 $val .= $instsubdirs{$onelib}{$rcond}
2880 if defined $instsubdirs{$onelib}{$rcond};
2881 }
2882 if ($rcond->true)
2883 {
2884 # If $rcond is true there is only one condition and
2885 # there is no point defining an helper variable.
2886 $rpath = $val;
2887 }
2888 else
2889 {
2890 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2891 }
2892 }
2894 # If the resulting library lies in a subdirectory,
2895 # make sure this directory will exist.
2896 my $dirstamp = require_build_directory_maybe ($onelib);
2898 # Remember to cleanup .libs/ in this directory.
2899 my $dirname = dirname $onelib;
2900 $libtool_clean_directories{$dirname} = 1;
2902 $output_rules .= &file_contents ('ltlibrary',
2903 $where,
2904 LTLIBRARY => $onelib,
2905 XLTLIBRARY => $xlib,
2906 RPATH => $rpath,
2907 XLINK => $xlink,
2908 VERBOSE => $vlink,
2909 DIRSTAMP => $dirstamp);
2910 if ($seen_libobjs)
2911 {
2912 if (var ($xlib . '_LIBADD'))
2913 {
2914 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2915 }
2916 }
2918 if (! $seen_ar)
2919 {
2920 msg ('extra-portability', $where,
2921 "'$onelib': linking libtool libraries using a non-POSIX\n"
2922 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2923 }
2924 }
2925 }
2927 # See if any _SOURCES variable were misspelled.
2928 sub check_typos ()
2929 {
2930 # It is ok if the user sets this particular variable.
2931 set_seen 'AM_LDFLAGS';
2933 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2934 {
2935 foreach my $var (variables $primary)
2936 {
2937 my $varname = $var->name;
2938 # A configure variable is always legitimate.
2939 next if exists $configure_vars{$varname};
2941 for my $cond ($var->conditions->conds)
2942 {
2943 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2944 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2945 . " program or\nlibrary has '$1' as canonical name"
2946 . " (possible typo)")
2947 unless $var->rdef ($cond)->seen;
2948 }
2949 }
2950 }
2951 }
2954 # Handle scripts.
2955 sub handle_scripts
2956 {
2957 # NOTE we no longer automatically clean SCRIPTS, because it is
2958 # useful to sometimes distribute scripts verbatim. This happens
2959 # e.g. in Automake itself.
2960 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2961 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2962 'noinst', 'check');
2963 }
2968 ## ------------------------ ##
2969 ## Handling Texinfo files. ##
2970 ## ------------------------ ##
2972 # ($OUTFILE, $VFILE)
2973 # &scan_texinfo_file ($FILENAME)
2974 # ------------------------------
2975 # $OUTFILE - name of the info file produced by $FILENAME.
2976 # $VFILE - name of the version.texi file used (undef if none).
2977 sub scan_texinfo_file ($)
2978 {
2979 my ($filename) = @_;
2981 my $texi = new Automake::XFile "< $filename";
2982 verb "reading $filename";
2984 my ($outfile, $vfile);
2985 while ($_ = $texi->getline)
2986 {
2987 if (/^\@setfilename +(\S+)/)
2988 {
2989 # Honor only the first @setfilename. (It's possible to have
2990 # more occurrences later if the manual shows examples of how
2991 # to use @setfilename...)
2992 next if $outfile;
2994 $outfile = $1;
2995 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2996 {
2997 error ("$filename:$.",
2998 "output '$outfile' has unrecognized extension");
2999 return;
3000 }
3001 }
3002 # A "version.texi" file is actually any file whose name matches
3003 # "vers*.texi".
3004 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3005 {
3006 $vfile = $1;
3007 }
3008 }
3010 if (! $outfile)
3011 {
3012 err_am "'$filename' missing \@setfilename";
3013 return;
3014 }
3016 my $infobase = basename ($filename);
3017 $infobase =~ s/\.te?xi(nfo)?$//;
3018 return ($outfile, $vfile);
3019 }
3022 # ($DIRSTAMP, @CLEAN_FILES)
3023 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3024 # ------------------------------------------------------------------
3025 # SOURCE - the source Texinfo file
3026 # DEST - the destination Info file
3027 # INSRC - whether DEST should be built in the source tree
3028 # DEPENDENCIES - known dependencies
3029 sub output_texinfo_build_rules ($$$@)
3030 {
3031 my ($source, $dest, $insrc, @deps) = @_;
3033 # Split 'a.texi' into 'a' and '.texi'.
3034 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3035 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3037 $ssfx ||= "";
3038 $dsfx ||= "";
3040 # We can output two kinds of rules: the "generic" rules use Make
3041 # suffix rules and are appropriate when $source and $dest do not lie
3042 # in a sub-directory; the "specific" rules are needed in the other
3043 # case.
3044 #
3045 # The former are output only once (this is not really apparent here,
3046 # but just remember that some logic deeper in Automake will not
3047 # output the same rule twice); while the later need to be output for
3048 # each Texinfo source.
3049 my $generic;
3050 my $makeinfoflags;
3051 my $sdir = dirname $source;
3052 if ($sdir eq '.' && dirname ($dest) eq '.')
3053 {
3054 $generic = 1;
3055 $makeinfoflags = '-I $(srcdir)';
3056 }
3057 else
3058 {
3059 $generic = 0;
3060 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3061 }
3063 # A directory can contain two kinds of info files: some built in the
3064 # source tree, and some built in the build tree. The rules are
3065 # different in each case. However we cannot output two different
3066 # set of generic rules. Because in-source builds are more usual, we
3067 # use generic rules in this case and fall back to "specific" rules
3068 # for build-dir builds. (It should not be a problem to invert this
3069 # if needed.)
3070 $generic = 0 unless $insrc;
3072 # We cannot use a suffix rule to build info files with an empty
3073 # extension. Otherwise we would output a single suffix inference
3074 # rule, with separate dependencies, as in
3075 #
3076 # .texi:
3077 # $(MAKEINFO) ...
3078 # foo.info: foo.texi
3079 #
3080 # which confuse Solaris make. (See the Autoconf manual for
3081 # details.) Therefore we use a specific rule in this case. This
3082 # applies to info files only (dvi and pdf files always have an
3083 # extension).
3084 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3086 # If the resulting file lies in a subdirectory,
3087 # make sure this directory will exist.
3088 my $dirstamp = require_build_directory_maybe ($dest);
3090 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3092 $output_rules .= file_contents ('texibuild',
3093 new Automake::Location,
3094 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3095 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3096 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3097 DEPS => "@deps",
3098 DEST_PREFIX => $dpfx,
3099 DEST_INFO_PREFIX => $dipfx,
3100 DEST_SUFFIX => $dsfx,
3101 DIRSTAMP => $dirstamp,
3102 GENERIC => $generic,
3103 GENERIC_INFO => $generic_info,
3104 INSRC => $insrc,
3105 MAKEINFOFLAGS => $makeinfoflags,
3106 SILENT => silent_flag(),
3107 SOURCE => ($generic
3108 ? '$<' : $source),
3109 SOURCE_INFO => ($generic_info
3110 ? '$<' : $source),
3111 SOURCE_REAL => $source,
3112 SOURCE_SUFFIX => $ssfx,
3113 TEXIQUIET => verbose_flag('texinfo'),
3114 TEXIDEVNULL => verbose_flag('texidevnull'),
3115 );
3116 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3117 }
3120 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3121 # handle_texinfo_helper ($info_texinfos)
3122 # --------------------------------------
3123 # Handle all Texinfo source; helper for handle_texinfo.
3124 sub handle_texinfo_helper ($)
3125 {
3126 my ($info_texinfos) = @_;
3127 my (@infobase, @info_deps_list, @texi_deps);
3128 my %versions;
3129 my $done = 0;
3130 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3132 # Build a regex matching user-cleaned files.
3133 my $d = var 'DISTCLEANFILES';
3134 my $c = var 'CLEANFILES';
3135 my @f = ();
3136 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3137 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3138 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3139 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3141 foreach my $texi
3142 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3143 {
3144 my $infobase = $texi;
3145 $infobase =~ s/\.(txi|texinfo|texi)$//;
3147 if ($infobase eq $texi)
3148 {
3149 # FIXME: report line number.
3150 err_am "texinfo file '$texi' has unrecognized extension";
3151 next;
3152 }
3154 push @infobase, $infobase;
3156 # If 'version.texi' is referenced by input file, then include
3157 # automatic versioning capability.
3158 my ($out_file, $vtexi) =
3159 scan_texinfo_file ("$relative_dir/$texi")
3160 or next;
3161 # Directory of auxiliary files and build by-products used by texi2dvi
3162 # and texi2pdf.
3163 push @mostly_cleans, "$infobase.t2d";
3164 push @mostly_cleans, "$infobase.t2p";
3166 # If the Texinfo source is in a subdirectory, create the
3167 # resulting info in this subdirectory. If it is in the current
3168 # directory, try hard to not prefix "./" because it breaks the
3169 # generic rules.
3170 my $outdir = dirname ($texi) . '/';
3171 $outdir = "" if $outdir eq './';
3172 $out_file = $outdir . $out_file;
3174 # Until Automake 1.6.3, .info files were built in the
3175 # source tree. This was an obstacle to the support of
3176 # non-distributed .info files, and non-distributed .texi
3177 # files.
3178 #
3179 # * Non-distributed .texi files is important in some packages
3180 # where .texi files are built at make time, probably using
3181 # other binaries built in the package itself, maybe using
3182 # tools or information found on the build host. Because
3183 # these files are not distributed they are always rebuilt
3184 # at make time; they should therefore not lie in the source
3185 # directory. One plan was to support this using
3186 # nodist_info_TEXINFOS or something similar. (Doing this
3187 # requires some sanity checks. For instance Automake should
3188 # not allow:
3189 # dist_info_TEXINFOS = foo.texi
3190 # nodist_foo_TEXINFOS = included.texi
3191 # because a distributed file should never depend on a
3192 # non-distributed file.)
3193 #
3194 # * If .texi files are not distributed, then .info files should
3195 # not be distributed either. There are also cases where one
3196 # wants to distribute .texi files, but does not want to
3197 # distribute the .info files. For instance the Texinfo package
3198 # distributes the tool used to build these files; it would
3199 # be a waste of space to distribute them. It's not clear
3200 # which syntax we should use to indicate that .info files should
3201 # not be distributed. Akim Demaille suggested that eventually
3202 # we switch to a new syntax:
3203 # | Maybe we should take some inspiration from what's already
3204 # | done in the rest of Automake. Maybe there is too much
3205 # | syntactic sugar here, and you want
3206 # | nodist_INFO = bar.info
3207 # | dist_bar_info_SOURCES = bar.texi
3208 # | bar_texi_DEPENDENCIES = foo.texi
3209 # | with a bit of magic to have bar.info represent the whole
3210 # | bar*info set. That's a lot more verbose that the current
3211 # | situation, but it is # not new, hence the user has less
3212 # | to learn.
3213 # |
3214 # | But there is still too much room for meaningless specs:
3215 # | nodist_INFO = bar.info
3216 # | dist_bar_info_SOURCES = bar.texi
3217 # | dist_PS = bar.ps something-written-by-hand.ps
3218 # | nodist_bar_ps_SOURCES = bar.texi
3219 # | bar_texi_DEPENDENCIES = foo.texi
3220 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3221 #
3222 # Back to the point, it should be clear that in order to support
3223 # non-distributed .info files, we need to build them in the
3224 # build tree, not in the source tree (non-distributed .texi
3225 # files are less of a problem, because we do not output build
3226 # rules for them). In Automake 1.7 .info build rules have been
3227 # largely cleaned up so that .info files get always build in the
3228 # build tree, even when distributed. The idea was that
3229 # (1) if during a VPATH build the .info file was found to be
3230 # absent or out-of-date (in the source tree or in the
3231 # build tree), Make would rebuild it in the build tree.
3232 # If an up-to-date source-tree of the .info file existed,
3233 # make would not rebuild it in the build tree.
3234 # (2) having two copies of .info files, one in the source tree
3235 # and one (newer) in the build tree is not a problem
3236 # because 'make dist' always pick files in the build tree
3237 # first.
3238 # However it turned out the be a bad idea for several reasons:
3239 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3240 # like GNU Make on point (1) above. These implementations
3241 # of Make would always rebuild .info files in the build
3242 # tree, even if such files were up to date in the source
3243 # tree. Consequently, it was impossible to perform a VPATH
3244 # build of a package containing Texinfo files using these
3245 # Make implementations.
3246 # (Refer to the Autoconf Manual, section "Limitation of
3247 # Make", paragraph "VPATH", item "target lookup", for
3248 # an account of the differences between these
3249 # implementations.)
3250 # * The GNU Coding Standards require these files to be built
3251 # in the source-tree (when they are distributed, that is).
3252 # * Keeping a fresher copy of distributed files in the
3253 # build tree can be annoying during development because
3254 # - if the files is kept under CVS, you really want it
3255 # to be updated in the source tree
3256 # - it is confusing that 'make distclean' does not erase
3257 # all files in the build tree.
3258 #
3259 # Consequently, starting with Automake 1.8, .info files are
3260 # built in the source tree again. Because we still plan to
3261 # support non-distributed .info files at some point, we
3262 # have a single variable ($INSRC) that controls whether
3263 # the current .info file must be built in the source tree
3264 # or in the build tree. Actually this variable is switched
3265 # off for .info files that appear to be cleaned; this is
3266 # for backward compatibility with package such as Texinfo,
3267 # which do things like
3268 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3269 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3270 # # Do not create info files for distribution.
3271 # dist-info:
3272 # in order not to distribute .info files.
3273 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3275 my $soutdir = '$(srcdir)/' . $outdir;
3276 $outdir = $soutdir if $insrc;
3278 # If user specified file_TEXINFOS, then use that as explicit
3279 # dependency list.
3280 @texi_deps = ();
3281 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3283 my $canonical = canonicalize ($infobase);
3284 if (var ($canonical . "_TEXINFOS"))
3285 {
3286 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3287 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3288 }
3290 my ($dirstamp, @cfiles) =
3291 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3292 push (@texi_cleans, @cfiles);
3294 push (@info_deps_list, $out_file);
3296 # If a vers*.texi file is needed, emit the rule.
3297 if ($vtexi)
3298 {
3299 err_am ("'$vtexi', included in '$texi', "
3300 . "also included in '$versions{$vtexi}'")
3301 if defined $versions{$vtexi};
3302 $versions{$vtexi} = $texi;
3304 # We number the stamp-vti files. This is doable since the
3305 # actual names don't matter much. We only number starting
3306 # with the second one, so that the common case looks nice.
3307 my $vti = ($done ? $done : 'vti');
3308 ++$done;
3310 # This is ugly, but it is our historical practice.
3311 if ($config_aux_dir_set_in_configure_ac)
3312 {
3313 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3314 'mdate-sh');
3315 }
3316 else
3317 {
3318 require_file_with_macro (TRUE, 'info_TEXINFOS',
3319 FOREIGN, 'mdate-sh');
3320 }
3322 my $conf_dir;
3323 if ($config_aux_dir_set_in_configure_ac)
3324 {
3325 $conf_dir = "$am_config_aux_dir/";
3326 }
3327 else
3328 {
3329 $conf_dir = '$(srcdir)/';
3330 }
3331 $output_rules .= file_contents ('texi-vers',
3332 new Automake::Location,
3333 TEXI => $texi,
3334 VTI => $vti,
3335 STAMPVTI => "${soutdir}stamp-$vti",
3336 VTEXI => "$soutdir$vtexi",
3337 MDDIR => $conf_dir,
3338 DIRSTAMP => $dirstamp);
3339 }
3340 }
3342 # Handle location of texinfo.tex.
3343 my $need_texi_file = 0;
3344 my $texinfodir;
3345 if (var ('TEXINFO_TEX'))
3346 {
3347 # The user defined TEXINFO_TEX so assume he knows what he is
3348 # doing.
3349 $texinfodir = ('$(srcdir)/'
3350 . dirname (variable_value ('TEXINFO_TEX')));
3351 }
3352 elsif ($config_aux_dir_set_in_configure_ac)
3353 {
3354 $texinfodir = $am_config_aux_dir;
3355 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3356 $need_texi_file = 2; # so that we require_conf_file later
3357 }
3358 else
3359 {
3360 $texinfodir = '$(srcdir)';
3361 $need_texi_file = 1;
3362 }
3363 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3365 push (@dist_targets, 'dist-info');
3367 if (! option 'no-installinfo')
3368 {
3369 # Make sure documentation is made and installed first. Use
3370 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3371 # get run twice during "make all".
3372 unshift (@all, '$(INFO_DEPS)');
3373 }
3375 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3376 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3377 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3378 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3380 # This next isn't strictly needed now -- the places that look here
3381 # could easily be changed to look in info_TEXINFOS. But this is
3382 # probably better, in case noinst_TEXINFOS is ever supported.
3383 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3385 # Do some error checking. Note that this file is not required
3386 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3387 # up above.
3388 if ($need_texi_file && ! option 'no-texinfo.tex')
3389 {
3390 if ($need_texi_file > 1)
3391 {
3392 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3393 'texinfo.tex');
3394 }
3395 else
3396 {
3397 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3398 'texinfo.tex');
3399 }
3400 }
3402 return (makefile_wrap ("", "\t ", @mostly_cleans),
3403 makefile_wrap ("", "\t ", @texi_cleans),
3404 makefile_wrap ("", "\t ", @maint_cleans));
3405 }
3408 # handle_texinfo ()
3409 # -----------------
3410 # Handle all Texinfo source.
3411 sub handle_texinfo ()
3412 {
3413 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3414 # FIXME: I think this is an obsolete future feature name.
3415 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3417 my $info_texinfos = var ('info_TEXINFOS');
3418 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3419 if ($info_texinfos)
3420 {
3421 define_verbose_texinfo;
3422 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3423 chomp $mostlyclean;
3424 chomp $clean;
3425 chomp $maintclean;
3426 }
3428 $output_rules .= file_contents ('texinfos',
3429 new Automake::Location,
3430 AM_V_DVIPS => verbose_flag('DVIPS'),
3431 MOSTLYCLEAN => $mostlyclean,
3432 TEXICLEAN => $clean,
3433 MAINTCLEAN => $maintclean,
3434 'LOCAL-TEXIS' => !!$info_texinfos,
3435 TEXIQUIET => verbose_flag('texinfo'));
3436 }
3439 # Handle any man pages.
3440 sub handle_man_pages
3441 {
3442 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3444 # Find all the sections in use. We do this by first looking for
3445 # "standard" sections, and then looking for any additional
3446 # sections used in man_MANS.
3447 my (%sections, %notrans_sections, %trans_sections,
3448 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3449 # We handle nodist_ for uniformity. man pages aren't distributed
3450 # by default so it isn't actually very important.
3451 foreach my $npfx ('', 'notrans_')
3452 {
3453 foreach my $pfx ('', 'dist_', 'nodist_')
3454 {
3455 # Add more sections as needed.
3456 foreach my $section ('0'..'9', 'n', 'l')
3457 {
3458 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3459 if (var ($varname))
3460 {
3461 $sections{$section} = 1;
3462 $varname = '$(' . $varname . ')';
3463 if ($npfx eq 'notrans_')
3464 {
3465 $notrans_sections{$section} = 1;
3466 $notrans_sect_vars{$varname} = 1;
3467 }
3468 else
3469 {
3470 $trans_sections{$section} = 1;
3471 $trans_sect_vars{$varname} = 1;
3472 }
3474 &push_dist_common ($varname)
3475 if $pfx eq 'dist_';
3476 }
3477 }
3479 my $varname = $npfx . $pfx . 'man_MANS';
3480 my $var = var ($varname);
3481 if ($var)
3482 {
3483 foreach ($var->value_as_list_recursive)
3484 {
3485 # A page like 'foo.1c' goes into man1dir.
3486 if (/\.([0-9a-z])([a-z]*)$/)
3487 {
3488 $sections{$1} = 1;
3489 if ($npfx eq 'notrans_')
3490 {
3491 $notrans_sections{$1} = 1;
3492 }
3493 else
3494 {
3495 $trans_sections{$1} = 1;
3496 }
3497 }
3498 }
3500 $varname = '$(' . $varname . ')';
3501 if ($npfx eq 'notrans_')
3502 {
3503 $notrans_vars{$varname} = 1;
3504 }
3505 else
3506 {
3507 $trans_vars{$varname} = 1;
3508 }
3509 &push_dist_common ($varname)
3510 if $pfx eq 'dist_';
3511 }
3512 }
3513 }
3515 return unless %sections;
3517 my @unsorted_deps;
3519 # Build section independent variables.
3520 my $have_notrans = %notrans_vars;
3521 my @notrans_list = sort keys %notrans_vars;
3522 my $have_trans = %trans_vars;
3523 my @trans_list = sort keys %trans_vars;
3525 # Now for each section, generate an install and uninstall rule.
3526 # Sort sections so output is deterministic.
3527 foreach my $section (sort keys %sections)
3528 {
3529 # Build section dependent variables.
3530 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3531 my $trans_mans = $have_trans || exists $trans_sections{$section};
3532 my (%notrans_this_sect, %trans_this_sect);
3533 my $expr = 'man' . $section . '_MANS';
3534 foreach my $varname (keys %notrans_sect_vars)
3535 {
3536 if ($varname =~ /$expr/)
3537 {
3538 $notrans_this_sect{$varname} = 1;
3539 }
3540 }
3541 foreach my $varname (keys %trans_sect_vars)
3542 {
3543 if ($varname =~ /$expr/)
3544 {
3545 $trans_this_sect{$varname} = 1;
3546 }
3547 }
3548 my @notrans_sect_list = sort keys %notrans_this_sect;
3549 my @trans_sect_list = sort keys %trans_this_sect;
3550 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3551 keys %notrans_this_sect, keys %trans_this_sect);
3552 my @deps = sort @unsorted_deps;
3553 $output_rules .= &file_contents ('mans',
3554 new Automake::Location,
3555 SECTION => $section,
3556 DEPS => "@deps",
3557 NOTRANS_MANS => $notrans_mans,
3558 NOTRANS_SECT_LIST => "@notrans_sect_list",
3559 HAVE_NOTRANS => $have_notrans,
3560 NOTRANS_LIST => "@notrans_list",
3561 TRANS_MANS => $trans_mans,
3562 TRANS_SECT_LIST => "@trans_sect_list",
3563 HAVE_TRANS => $have_trans,
3564 TRANS_LIST => "@trans_list");
3565 }
3567 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3568 keys %notrans_sect_vars, keys %trans_sect_vars);
3569 my @mans = sort @unsorted_deps;
3570 $output_vars .= file_contents ('mans-vars',
3571 new Automake::Location,
3572 MANS => "@mans");
3574 push (@all, '$(MANS)')
3575 unless option 'no-installman';
3576 }
3578 # Handle DATA variables.
3579 sub handle_data
3580 {
3581 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3582 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3583 'ps', 'sysconf', 'sharedstate', 'localstate',
3584 'pkgdata', 'lisp', 'noinst', 'check');
3585 }
3587 # Handle TAGS.
3588 sub handle_tags
3589 {
3590 my @config;
3591 foreach my $spec (@config_headers)
3592 {
3593 my ($out, @ins) = split_config_file_spec ($spec);
3594 foreach my $in (@ins)
3595 {
3596 # If the config header source is in this directory,
3597 # require it.
3598 push @config, basename ($in)
3599 if $relative_dir eq dirname ($in);
3600 }
3601 }
3603 define_variable ('am__tagged_files',
3604 '$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
3605 . "@config", INTERNAL);
3607 if (rvar('am__tagged_files')->value_as_list_recursive
3608 || var ('ETAGS_ARGS') || var ('SUBDIRS'))
3609 {
3610 $output_rules .= &file_contents ('tags', new Automake::Location);
3611 set_seen 'TAGS_DEPENDENCIES';
3612 }
3613 else
3614 {
3615 reject_var ('TAGS_DEPENDENCIES',
3616 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3617 . " without\nsources or 'ETAGS_ARGS'");
3618 # Every Makefile must define some sort of TAGS rule.
3619 # Otherwise, it would be possible for a top-level "make TAGS"
3620 # to fail because some subdirectory failed. Ditto ctags and
3621 # cscope.
3622 $output_rules .=
3623 "tags TAGS:\n\n" .
3624 "ctags CTAGS:\n\n" .
3625 "cscope cscopelist:\n\n";
3626 }
3627 }
3630 # user_phony_rule ($NAME)
3631 # -----------------------
3632 # Return false if rule $NAME does not exist. Otherwise,
3633 # declare it as phony, complete its definition (in case it is
3634 # conditional), and return its Automake::Rule instance.
3635 sub user_phony_rule ($)
3636 {
3637 my ($name) = @_;
3638 my $rule = rule $name;
3639 if ($rule)
3640 {
3641 depend ('.PHONY', $name);
3642 # Define $NAME in all condition where it is not already defined,
3643 # so that it is always OK to depend on $NAME.
3644 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3645 {
3646 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3647 $c, INTERNAL);
3648 $output_rules .= $c->subst_string . "$name:\n";
3649 }
3650 }
3651 return $rule;
3652 }
3655 # handle_dist
3656 # -----------
3657 # Handle 'dist' target.
3658 sub handle_dist ()
3659 {
3660 # Substitutions for distdir.am
3661 my %transform;
3663 # Define DIST_SUBDIRS. This must always be done, regardless of the
3664 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3665 my $subdirs = var ('SUBDIRS');
3666 if ($subdirs)
3667 {
3668 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3669 # to all possible directories, and use it. If DIST_SUBDIRS is
3670 # defined, just use it.
3672 # Note that we check DIST_SUBDIRS first on purpose, so that
3673 # we don't call has_conditional_contents for now reason.
3674 # (In the past one project used so many conditional subdirectories
3675 # that calling has_conditional_contents on SUBDIRS caused
3676 # automake to grow to 150Mb -- this should not happen with
3677 # the current implementation of has_conditional_contents,
3678 # but it's more efficient to avoid the call anyway.)
3679 if (var ('DIST_SUBDIRS'))
3680 {
3681 }
3682 elsif ($subdirs->has_conditional_contents)
3683 {
3684 define_pretty_variable
3685 ('DIST_SUBDIRS', TRUE, INTERNAL,
3686 uniq ($subdirs->value_as_list_recursive));
3687 }
3688 else
3689 {
3690 # We always define this because that is what 'distclean'
3691 # wants.
3692 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3693 '$(SUBDIRS)');
3694 }
3695 }
3697 # The remaining definitions are only required when a dist target is used.
3698 return if option 'no-dist';
3700 # At least one of the archive formats must be enabled.
3701 if ($relative_dir eq '.')
3702 {
3703 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3704 $archive_defined ||=
3705 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
3706 error (option 'no-dist-gzip',
3707 "no-dist-gzip specified but no dist-* specified,\n"
3708 . "at least one archive format must be enabled")
3709 unless $archive_defined;
3710 }
3712 # Look for common files that should be included in distribution.
3713 # If the aux dir is set, and it does not have a Makefile.am, then
3714 # we check for these files there as well.
3715 my $check_aux = 0;
3716 if ($relative_dir eq '.'
3717 && $config_aux_dir_set_in_configure_ac)
3718 {
3719 if (! &is_make_dir ($config_aux_dir))
3720 {
3721 $check_aux = 1;
3722 }
3723 }
3724 foreach my $cfile (@common_files)
3725 {
3726 if (dir_has_case_matching_file ($relative_dir, $cfile)
3727 # The file might be absent, but if it can be built it's ok.
3728 || rule $cfile)
3729 {
3730 &push_dist_common ($cfile);
3731 }
3733 # Don't use 'elsif' here because a file might meaningfully
3734 # appear in both directories.
3735 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3736 {
3737 &push_dist_common ("$config_aux_dir/$cfile")
3738 }
3739 }
3741 # We might copy elements from $configure_dist_common to
3742 # %dist_common if we think we need to. If the file appears in our
3743 # directory, we would have discovered it already, so we don't
3744 # check that. But if the file is in a subdir without a Makefile,
3745 # we want to distribute it here if we are doing '.'. Ugly!
3746 # Also, in some corner cases, it's possible that the following code
3747 # will cause the same file to appear in the $(DIST_COMMON) variables
3748 # of two distinct Makefiles; but this is not a problem, since the
3749 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3750 # file being distributed multiple times.
3751 # See also automake bug#9651.
3752 if ($relative_dir eq '.')
3753 {
3754 foreach my $file (split (' ' , $configure_dist_common))
3755 {
3756 my $dir = dirname ($file);
3757 push_dist_common ($file)
3758 if ($dir eq '.' || ! is_make_dir ($dir));
3759 }
3760 }
3762 # Files to distributed. Don't use ->value_as_list_recursive
3763 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3764 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3765 @dist_common = uniq @dist_common;
3766 variable_delete 'DIST_COMMON';
3767 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3769 # Now that we've processed DIST_COMMON, disallow further attempts
3770 # to set it.
3771 $handle_dist_run = 1;
3773 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3774 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3776 # If the target 'dist-hook' exists, make sure it is run. This
3777 # allows users to do random weird things to the distribution
3778 # before it is packaged up.
3779 push (@dist_targets, 'dist-hook')
3780 if user_phony_rule 'dist-hook';
3781 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3783 my $flm = option ('filename-length-max');
3784 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3786 $output_rules .= &file_contents ('distdir',
3787 new Automake::Location,
3788 %transform,
3789 FILENAME_FILTER => $filename_filter);
3790 }
3793 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3794 # -------------------------------------------------------
3795 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3796 # name. Use $WHERE as a location in the diagnostic, if any.
3797 sub check_directory ($$;$)
3798 {
3799 my ($dir, $where, $reldir) = @_;
3800 $reldir = '.' unless defined $reldir;
3802 error $where, "required directory $reldir/$dir does not exist"
3803 unless -d "$reldir/$dir";
3805 # If an 'obj/' directory exists, BSD make will enter it before
3806 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3807 # will not be read.
3808 #
3809 # % cat Makefile
3810 # all:
3811 # echo Hello
3812 # % cat obj/Makefile
3813 # all:
3814 # echo World
3815 # % make # GNU make
3816 # echo Hello
3817 # Hello
3818 # % pmake # BSD make
3819 # echo World
3820 # World
3821 msg ('portability', $where,
3822 "naming a subdirectory 'obj' causes troubles with BSD make")
3823 if $dir eq 'obj';
3825 # 'aux' is probably the most important of the following forbidden name,
3826 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3827 msg ('portability', $where,
3828 "name '$dir' is reserved on W32 and DOS platforms")
3829 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3830 }
3832 # check_directories_in_var ($VARIABLE)
3833 # ------------------------------------
3834 # Recursively check all items in variables $VARIABLE as directories
3835 sub check_directories_in_var ($)
3836 {
3837 my ($var) = @_;
3838 $var->traverse_recursively
3839 (sub
3840 {
3841 my ($var, $val, $cond, $full_cond) = @_;
3842 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3843 return ();
3844 },
3845 undef,
3846 skip_ac_subst => 1);
3847 }
3849 # &handle_subdirs ()
3850 # ------------------
3851 # Handle subdirectories.
3852 sub handle_subdirs ()
3853 {
3854 my $subdirs = var ('SUBDIRS');
3855 return
3856 unless $subdirs;
3858 check_directories_in_var $subdirs;
3860 my $dsubdirs = var ('DIST_SUBDIRS');
3861 check_directories_in_var $dsubdirs
3862 if $dsubdirs;
3864 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3865 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3866 }
3869 # ($REGEN, @DEPENDENCIES)
3870 # &scan_aclocal_m4
3871 # ----------------
3872 # If aclocal.m4 creation is automated, return the list of its dependencies.
3873 sub scan_aclocal_m4 ()
3874 {
3875 my $regen_aclocal = 0;
3877 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3878 set_seen 'CONFIGURE_DEPENDENCIES';
3880 if (-f 'aclocal.m4')
3881 {
3882 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3884 my $aclocal = new Automake::XFile "< aclocal.m4";
3885 my $line = $aclocal->getline;
3886 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3887 }
3889 my @ac_deps = ();
3891 if (set_seen ('ACLOCAL_M4_SOURCES'))
3892 {
3893 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3894 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3895 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
3896 . "It should be safe to simply remove it");
3897 }
3899 # Note that it might be possible that aclocal.m4 doesn't exist but
3900 # should be auto-generated. This case probably isn't very
3901 # important.
3903 return ($regen_aclocal, @ac_deps);
3904 }
3907 # Helper function for substitute_ac_subst_variables.
3908 sub substitute_ac_subst_variables_worker($)
3909 {
3910 my ($token) = @_;
3911 return "\@$token\@" if var $token;
3912 return "\${$token\}";
3913 }
3915 # substitute_ac_subst_variables ($TEXT)
3916 # -------------------------------------
3917 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3918 # variable.
3919 sub substitute_ac_subst_variables ($)
3920 {
3921 my ($text) = @_;
3922 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3923 return $text;
3924 }
3926 # @DEPENDENCIES
3927 # &prepend_srcdir (@INPUTS)
3928 # -------------------------
3929 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3930 # if an input file has a directory part the same as the current
3931 # directory, then the directory part is simply replaced by $(srcdir).
3932 # But if the directory part is different, then $(top_srcdir) is
3933 # prepended.
3934 sub prepend_srcdir (@)
3935 {
3936 my (@inputs) = @_;
3937 my @newinputs;
3939 foreach my $single (@inputs)
3940 {
3941 if (dirname ($single) eq $relative_dir)
3942 {
3943 push (@newinputs, '$(srcdir)/' . basename ($single));
3944 }
3945 else
3946 {
3947 push (@newinputs, '$(top_srcdir)/' . $single);
3948 }
3949 }
3950 return @newinputs;
3951 }
3953 # @DEPENDENCIES
3954 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3955 # ---------------------------------------------------
3956 # Compute a list of dependencies appropriate for the rebuild
3957 # rule of
3958 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3959 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
3960 sub rewrite_inputs_into_dependencies ($@)
3961 {
3962 my ($file, @inputs) = @_;
3963 my @res = ();
3965 for my $i (@inputs)
3966 {
3967 # We cannot create dependencies on shell variables.
3968 next if (substitute_ac_subst_variables $i) =~ /\$/;
3970 if (exists $ac_config_files_location{$i} && $i ne $file)
3971 {
3972 my $di = dirname $i;
3973 if ($di eq $relative_dir)
3974 {
3975 $i = basename $i;
3976 }
3977 # In the top-level Makefile we do not use $(top_builddir), because
3978 # we are already there, and since the targets are built without
3979 # a $(top_builddir), it helps BSD Make to match them with
3980 # dependencies.
3981 elsif ($relative_dir ne '.')
3982 {
3983 $i = '$(top_builddir)/' . $i;
3984 }
3985 }
3986 else
3987 {
3988 msg ('error', $ac_config_files_location{$file},
3989 "required file '$i' not found")
3990 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3991 ($i) = prepend_srcdir ($i);
3992 push_dist_common ($i);
3993 }
3994 push @res, $i;
3995 }
3996 return @res;
3997 }
4001 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4002 # ------------------------------------------------------------------
4003 # Handle remaking and configure stuff.
4004 # We need the name of the input file, to do proper remaking rules.
4005 sub handle_configure ($$$@)
4006 {
4007 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4009 prog_error 'empty @inputs'
4010 unless @inputs;
4012 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4013 $makefile_in);
4014 my $rel_makefile = basename $makefile;
4016 my $colon_infile = ':' . join (':', @inputs);
4017 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4018 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4019 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4020 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4021 @configure_deps, @aclocal_m4_deps,
4022 '$(top_srcdir)/' . $configure_ac);
4023 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4024 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4025 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4026 @configuredeps);
4028 my $automake_options = '--' . $strictness_name .
4029 (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4031 $output_rules .= file_contents
4032 ('configure',
4033 new Automake::Location,
4034 MAKEFILE => $rel_makefile,
4035 'MAKEFILE-DEPS' => "@rewritten",
4036 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4037 'MAKEFILE-IN' => $rel_makefile_in,
4038 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4039 'MAKEFILE-IN-DEPS' => "@include_stack",
4040 'MAKEFILE-AM' => $rel_makefile_am,
4041 'AUTOMAKE-OPTIONS' => $automake_options,
4042 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4043 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4044 VERBOSE => verbose_flag ('GEN'));
4046 if ($relative_dir eq '.')
4047 {
4048 &push_dist_common ('acconfig.h')
4049 if -f 'acconfig.h';
4050 }
4052 # If we have a configure header, require it.
4053 my $hdr_index = 0;
4054 my @distclean_config;
4055 foreach my $spec (@config_headers)
4056 {
4057 $hdr_index += 1;
4058 # $CONFIG_H_PATH: config.h from top level.
4059 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4060 my $config_h_dir = dirname ($config_h_path);
4062 # If the header is in the current directory we want to build
4063 # the header here. Otherwise, if we're at the topmost
4064 # directory and the header's directory doesn't have a
4065 # Makefile, then we also want to build the header.
4066 if ($relative_dir eq $config_h_dir
4067 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4068 {
4069 my ($cn_sans_dir, $stamp_dir);
4070 if ($relative_dir eq $config_h_dir)
4071 {
4072 $cn_sans_dir = basename ($config_h_path);
4073 $stamp_dir = '';
4074 }
4075 else
4076 {
4077 $cn_sans_dir = $config_h_path;
4078 if ($config_h_dir eq '.')
4079 {
4080 $stamp_dir = '';
4081 }
4082 else
4083 {
4084 $stamp_dir = $config_h_dir . '/';
4085 }
4086 }
4088 # This will also distribute all inputs.
4089 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4091 # Cannot define rebuild rules for filenames with shell variables.
4092 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4094 # Header defined in this directory.
4095 my @files;
4096 if (-f $config_h_path . '.top')
4097 {
4098 push (@files, "$cn_sans_dir.top");
4099 }
4100 if (-f $config_h_path . '.bot')
4101 {
4102 push (@files, "$cn_sans_dir.bot");
4103 }
4105 push_dist_common (@files);
4107 # For now, acconfig.h can only appear in the top srcdir.
4108 if (-f 'acconfig.h')
4109 {
4110 push (@files, '$(top_srcdir)/acconfig.h');
4111 }
4113 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4114 $output_rules .=
4115 file_contents ('remake-hdr',
4116 new Automake::Location,
4117 FILES => "@files",
4118 'FIRST-HDR' => ($hdr_index == 1),
4119 CONFIG_H => $cn_sans_dir,
4120 CONFIG_HIN => $ins[0],
4121 CONFIG_H_DEPS => "@ins",
4122 CONFIG_H_PATH => $config_h_path,
4123 STAMP => "$stamp");
4125 push @distclean_config, $cn_sans_dir, $stamp;
4126 }
4127 }
4129 $output_rules .= file_contents ('clean-hdr',
4130 new Automake::Location,
4131 FILES => "@distclean_config")
4132 if @distclean_config;
4134 # Distribute and define mkinstalldirs only if it is already present
4135 # in the package, for backward compatibility (some people may still
4136 # use $(mkinstalldirs)).
4137 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4138 if (-f $mkidpath)
4139 {
4140 # Use require_file so that any existing script gets updated
4141 # by --force-missing.
4142 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4143 define_variable ('mkinstalldirs',
4144 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4145 }
4146 else
4147 {
4148 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4149 # at least one argument, and $(mkinstalldirs) used to work
4150 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4151 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4152 }
4154 reject_var ('CONFIG_HEADER',
4155 "'CONFIG_HEADER' is an anachronism; now determined "
4156 . "automatically\nfrom '$configure_ac'");
4158 my @config_h;
4159 foreach my $spec (@config_headers)
4160 {
4161 my ($out, @ins) = split_config_file_spec ($spec);
4162 # Generate CONFIG_HEADER define.
4163 if ($relative_dir eq dirname ($out))
4164 {
4165 push @config_h, basename ($out);
4166 }
4167 else
4168 {
4169 push @config_h, "\$(top_builddir)/$out";
4170 }
4171 }
4172 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4173 if @config_h;
4175 # Now look for other files in this directory which must be remade
4176 # by config.status, and generate rules for them.
4177 my @actual_other_files = ();
4178 # These get cleaned only in a VPATH build.
4179 my @actual_other_vpath_files = ();
4180 foreach my $lfile (@other_input_files)
4181 {
4182 my $file;
4183 my @inputs;
4184 if ($lfile =~ /^([^:]*):(.*)$/)
4185 {
4186 # This is the ":" syntax of AC_OUTPUT.
4187 $file = $1;
4188 @inputs = split (':', $2);
4189 }
4190 else
4191 {
4192 # Normal usage.
4193 $file = $lfile;
4194 @inputs = $file . '.in';
4195 }
4197 # Automake files should not be stored in here, but in %MAKE_LIST.
4198 prog_error ("$lfile in \@other_input_files\n"
4199 . "\@other_input_files = (@other_input_files)")
4200 if -f $file . '.am';
4202 my $local = basename ($file);
4204 # We skip files that aren't in this directory. However, if
4205 # the file's directory does not have a Makefile, and we are
4206 # currently doing '.', then we create a rule to rebuild the
4207 # file in the subdir.
4208 my $fd = dirname ($file);
4209 if ($fd ne $relative_dir)
4210 {
4211 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4212 {
4213 $local = $file;
4214 }
4215 else
4216 {
4217 next;
4218 }
4219 }
4221 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4223 # Cannot output rules for shell variables.
4224 next if (substitute_ac_subst_variables $local) =~ /\$/;
4226 my $condstr = '';
4227 my $cond = $ac_config_files_condition{$lfile};
4228 if (defined $cond)
4229 {
4230 $condstr = $cond->subst_string;
4231 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4232 $ac_config_files_location{$file});
4233 }
4234 $output_rules .= ($condstr . $local . ': '
4235 . '$(top_builddir)/config.status '
4236 . "@rewritten_inputs\n"
4237 . $condstr . "\t"
4238 . 'cd $(top_builddir) && '
4239 . '$(SHELL) ./config.status '
4240 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4241 . '$@'
4242 . "\n");
4243 push (@actual_other_files, $local);
4244 }
4246 # For links we should clean destinations and distribute sources.
4247 foreach my $spec (@config_links)
4248 {
4249 my ($link, $file) = split /:/, $spec;
4250 # Some people do AC_CONFIG_LINKS($computed). We only handle
4251 # the DEST:SRC form.
4252 next unless $file;
4253 my $where = $ac_config_files_location{$link};
4255 # Skip destinations that contain shell variables.
4256 if ((substitute_ac_subst_variables $link) !~ /\$/)
4257 {
4258 # We skip links that aren't in this directory. However, if
4259 # the link's directory does not have a Makefile, and we are
4260 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4261 # in '.'s Makefile.in.
4262 my $local = basename ($link);
4263 my $fd = dirname ($link);
4264 if ($fd ne $relative_dir)
4265 {
4266 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4267 {
4268 $local = $link;
4269 }
4270 else
4271 {
4272 $local = undef;
4273 }
4274 }
4275 if ($file ne $link)
4276 {
4277 push @actual_other_files, $local if $local;
4278 }
4279 else
4280 {
4281 push @actual_other_vpath_files, $local if $local;
4282 }
4283 }
4285 # Do not process sources that contain shell variables.
4286 if ((substitute_ac_subst_variables $file) !~ /\$/)
4287 {
4288 my $fd = dirname ($file);
4290 # We distribute files that are in this directory.
4291 # At the top-level ('.') we also distribute files whose
4292 # directory does not have a Makefile.
4293 if (($fd eq $relative_dir)
4294 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4295 {
4296 # The following will distribute $file as a side-effect when
4297 # it is appropriate (i.e., when $file is not already an output).
4298 # We do not need the result, just the side-effect.
4299 rewrite_inputs_into_dependencies ($link, $file);
4300 }
4301 }
4302 }
4304 # These files get removed by "make distclean".
4305 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4306 @actual_other_files);
4307 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4308 @actual_other_vpath_files);
4309 }
4311 # Handle C headers.
4312 sub handle_headers
4313 {
4314 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4315 'oldinclude', 'pkginclude',
4316 'noinst', 'check');
4317 foreach (@r)
4318 {
4319 next unless $_->[1] =~ /\..*$/;
4320 &saw_extension ($&);
4321 }
4322 }
4324 sub handle_gettext
4325 {
4326 return if ! $seen_gettext || $relative_dir ne '.';
4328 my $subdirs = var 'SUBDIRS';
4330 if (! $subdirs)
4331 {
4332 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4333 return;
4334 }
4336 # Perform some sanity checks to help users get the right setup.
4337 # We disable these tests when po/ doesn't exist in order not to disallow
4338 # unusual gettext setups.
4339 #
4340 # Bruno Haible:
4341 # | The idea is:
4342 # |
4343 # | 1) If a package doesn't have a directory po/ at top level, it
4344 # | will likely have multiple po/ directories in subpackages.
4345 # |
4346 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4347 # | is used without 'external'. It is also useful to warn for the
4348 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4349 # | warnings apply only to the usual layout of packages, therefore
4350 # | they should both be disabled if no po/ directory is found at
4351 # | top level.
4353 if (-d 'po')
4354 {
4355 my @subdirs = $subdirs->value_as_list_recursive;
4357 msg_var ('syntax', $subdirs,
4358 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4359 if ! grep ($_ eq 'po', @subdirs);
4361 # intl/ is not required when AM_GNU_GETTEXT is called with the
4362 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4363 msg_var ('syntax', $subdirs,
4364 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4365 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4366 && ! grep ($_ eq 'intl', @subdirs));
4368 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4369 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4370 msg_var ('syntax', $subdirs,
4371 "'intl' should not be in SUBDIRS when "
4372 . "AM_GNU_GETTEXT([external]) is used")
4373 if ($seen_gettext_external && ! $seen_gettext_intl
4374 && grep ($_ eq 'intl', @subdirs));
4375 }
4377 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4378 }
4380 # Handle footer elements.
4381 sub handle_footer
4382 {
4383 reject_rule ('.SUFFIXES',
4384 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4386 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4387 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4388 # anything else, by sticking it right after the default: target.
4389 $output_header .= ".SUFFIXES:\n";
4390 my $suffixes = var 'SUFFIXES';
4391 my @suffixes = Automake::Rule::suffixes;
4392 if (@suffixes || $suffixes)
4393 {
4394 # Make sure SUFFIXES has unique elements. Sort them to ensure
4395 # the output remains consistent. However, $(SUFFIXES) is
4396 # always at the start of the list, unsorted. This is done
4397 # because make will choose rules depending on the ordering of
4398 # suffixes, and this lets the user have some control. Push
4399 # actual suffixes, and not $(SUFFIXES). Some versions of make
4400 # do not like variable substitutions on the .SUFFIXES line.
4401 my @user_suffixes = ($suffixes
4402 ? $suffixes->value_as_list_recursive : ());
4404 my %suffixes = map { $_ => 1 } @suffixes;
4405 delete @suffixes{@user_suffixes};
4407 $output_header .= (".SUFFIXES: "
4408 . join (' ', @user_suffixes, sort keys %suffixes)
4409 . "\n");
4410 }
4412 $output_trailer .= file_contents ('footer', new Automake::Location);
4413 }
4416 # Generate 'make install' rules.
4417 sub handle_install ()
4418 {
4419 $output_rules .= &file_contents
4420 ('install',
4421 new Automake::Location,
4422 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4423 ? (" \$(BUILT_SOURCES)\n"
4424 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4425 : ''),
4426 'installdirs-local' => (user_phony_rule 'installdirs-local'
4427 ? ' installdirs-local' : ''),
4428 am__installdirs => variable_value ('am__installdirs') || '');
4429 }
4432 # Deal with all and all-am.
4433 sub handle_all ($)
4434 {
4435 my ($makefile) = @_;
4437 # Output 'all-am'.
4439 # Put this at the beginning for the sake of non-GNU makes. This
4440 # is still wrong if these makes can run parallel jobs. But it is
4441 # right enough.
4442 unshift (@all, basename ($makefile));
4444 foreach my $spec (@config_headers)
4445 {
4446 my ($out, @ins) = split_config_file_spec ($spec);
4447 push (@all, basename ($out))
4448 if dirname ($out) eq $relative_dir;
4449 }
4451 # Install 'all' hooks.
4452 push (@all, "all-local")
4453 if user_phony_rule "all-local";
4455 &pretty_print_rule ("all-am:", "\t\t", @all);
4456 &depend ('.PHONY', 'all-am', 'all');
4459 # Output 'all'.
4461 my @local_headers = ();
4462 push @local_headers, '$(BUILT_SOURCES)'
4463 if var ('BUILT_SOURCES');
4464 foreach my $spec (@config_headers)
4465 {
4466 my ($out, @ins) = split_config_file_spec ($spec);
4467 push @local_headers, basename ($out)
4468 if dirname ($out) eq $relative_dir;
4469 }
4471 if (@local_headers)
4472 {
4473 # We need to make sure config.h is built before we recurse.
4474 # We also want to make sure that built sources are built
4475 # before any ordinary 'all' targets are run. We can't do this
4476 # by changing the order of dependencies to the "all" because
4477 # that breaks when using parallel makes. Instead we handle
4478 # things explicitly.
4479 $output_all .= ("all: @local_headers"
4480 . "\n\t"
4481 . '$(MAKE) $(AM_MAKEFLAGS) '
4482 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4483 . "\n\n");
4484 depend ('.MAKE', 'all');
4485 }
4486 else
4487 {
4488 $output_all .= "all: " . (var ('SUBDIRS')
4489 ? 'all-recursive' : 'all-am') . "\n\n";
4490 }
4491 }
4493 # Generate helper targets for user recursion, where needed.
4494 sub handle_user_recursion ()
4495 {
4496 return unless @extra_recursive_targets;
4498 define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
4499 map { "$_-recursive" } @extra_recursive_targets);
4500 my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
4501 foreach my $target (@extra_recursive_targets)
4502 {
4503 # This allows the default target's rules to be overridden in
4504 # Makefile.am.
4505 user_phony_rule ($target);
4506 depend ("$target", "$target-$aux");
4507 depend ("$target-am", "$target-local");
4508 # Every user-defined recursive target 'foo' *must* have a valid
4509 # associated 'foo-local' rule; we define it as an empty rule by
4510 # default, so that the user can transparently extend it in his
4511 # own Makefile.am.
4512 pretty_print_rule ("$target-local:");
4513 # $target-recursive might as well be undefined, so do not add
4514 # it here; it's taken care of in subdirs.am anyway.
4515 depend (".PHONY", "$target-am", "$target-local");
4516 }
4517 }
4520 # &do_check_merge_target ()
4521 # -------------------------
4522 # Handle check merge target specially.
4523 sub do_check_merge_target ()
4524 {
4525 # Include user-defined local form of target.
4526 push @check_tests, 'check-local'
4527 if user_phony_rule 'check-local';
4529 # The check target must depend on the local equivalent of
4530 # 'all', to ensure all the primary targets are built. Then it
4531 # must build the local check rules.
4532 $output_rules .= "check-am: all-am\n";
4533 if (@check)
4534 {
4535 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
4536 depend ('.MAKE', 'check-am');
4537 }
4539 if (@check_tests)
4540 {
4541 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4542 @check_tests);
4543 depend ('.MAKE', 'check-am');
4544 }
4546 depend '.PHONY', 'check', 'check-am';
4547 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4548 $output_rules .= ("check: "
4549 . (var ('BUILT_SOURCES')
4550 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4551 : '')
4552 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4553 . "\n");
4554 depend ('.MAKE', 'check')
4555 if var ('BUILT_SOURCES');
4556 }
4558 # handle_clean ($MAKEFILE)
4559 # ------------------------
4560 # Handle all 'clean' targets.
4561 sub handle_clean ($)
4562 {
4563 my ($makefile) = @_;
4565 # Clean the files listed in user variables if they exist.
4566 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4567 if var ('MOSTLYCLEANFILES');
4568 $clean_files{'$(CLEANFILES)'} = CLEAN
4569 if var ('CLEANFILES');
4570 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4571 if var ('DISTCLEANFILES');
4572 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4573 if var ('MAINTAINERCLEANFILES');
4575 # Built sources are automatically removed by maintainer-clean.
4576 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4577 if var ('BUILT_SOURCES');
4579 # Compute a list of "rm"s to run for each target.
4580 my %rms = (MOSTLY_CLEAN, [],
4581 CLEAN, [],
4582 DIST_CLEAN, [],
4583 MAINTAINER_CLEAN, []);
4585 foreach my $file (keys %clean_files)
4586 {
4587 my $when = $clean_files{$file};
4588 prog_error 'invalid entry in %clean_files'
4589 unless exists $rms{$when};
4591 my $rm = "rm -f $file";
4592 # If file is a variable, make sure when don't call 'rm -f' without args.
4593 $rm ="test -z \"$file\" || $rm"
4594 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4596 push @{$rms{$when}}, "\t-$rm\n";
4597 }
4599 $output_rules .= &file_contents
4600 ('clean',
4601 new Automake::Location,
4602 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4603 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4604 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4605 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4606 MAKEFILE => basename $makefile,
4607 );
4608 }
4611 # &target_cmp ($A, $B)
4612 # --------------------
4613 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4614 # other '.TARGETS' be last.
4615 sub target_cmp
4616 {
4617 return 0 if $a eq $b;
4619 my $a1 = substr ($a, 0, 1);
4620 my $b1 = substr ($b, 0, 1);
4621 if ($a1 ne $b1)
4622 {
4623 return -1 if $b1 eq '.';
4624 return 1 if $a1 eq '.';
4625 }
4626 return $a cmp $b;
4627 }
4630 # &handle_factored_dependencies ()
4631 # --------------------------------
4632 # Handle everything related to gathered targets.
4633 sub handle_factored_dependencies
4634 {
4635 # Reject bad hooks.
4636 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4637 'uninstall-exec-local', 'uninstall-exec-hook',
4638 'uninstall-dvi-local',
4639 'uninstall-html-local',
4640 'uninstall-info-local',
4641 'uninstall-pdf-local',
4642 'uninstall-ps-local')
4643 {
4644 my $x = $utarg;
4645 $x =~ s/-.*-/-/;
4646 reject_rule ($utarg, "use '$x', not '$utarg'");
4647 }
4649 reject_rule ('install-local',
4650 "use 'install-data-local' or 'install-exec-local', "
4651 . "not 'install-local'");
4653 reject_rule ('install-hook',
4654 "use 'install-data-hook' or 'install-exec-hook', "
4655 . "not 'install-hook'");
4657 # Install the -local hooks.
4658 foreach (keys %dependencies)
4659 {
4660 # Hooks are installed on the -am targets.
4661 s/-am$// or next;
4662 depend ("$_-am", "$_-local")
4663 if user_phony_rule "$_-local";
4664 }
4666 # Install the -hook hooks.
4667 # FIXME: Why not be as liberal as we are with -local hooks?
4668 foreach ('install-exec', 'install-data', 'uninstall')
4669 {
4670 if (user_phony_rule "$_-hook")
4671 {
4672 depend ('.MAKE', "$_-am");
4673 register_action("$_-am",
4674 ("\t\@\$(NORMAL_INSTALL)\n"
4675 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4676 }
4677 }
4679 # All the required targets are phony.
4680 depend ('.PHONY', keys %required_targets);
4682 # Actually output gathered targets.
4683 foreach (sort target_cmp keys %dependencies)
4684 {
4685 # If there is nothing about this guy, skip it.
4686 next
4687 unless (@{$dependencies{$_}}
4688 || $actions{$_}
4689 || $required_targets{$_});
4691 # Define gathered targets in undefined conditions.
4692 # FIXME: Right now we must handle .PHONY as an exception,
4693 # because people write things like
4694 # .PHONY: myphonytarget
4695 # to append dependencies. This would not work if Automake
4696 # refrained from defining its own .PHONY target as it does
4697 # with other overridden targets.
4698 # Likewise for '.MAKE'.
4699 my @undefined_conds = (TRUE,);
4700 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4701 {
4702 @undefined_conds =
4703 Automake::Rule::define ($_, 'internal',
4704 RULE_AUTOMAKE, TRUE, INTERNAL);
4705 }
4706 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4707 foreach my $cond (@undefined_conds)
4708 {
4709 my $condstr = $cond->subst_string;
4710 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4711 $output_rules .= $actions{$_} if defined $actions{$_};
4712 $output_rules .= "\n";
4713 }
4714 }
4715 }
4718 # &handle_tests_dejagnu ()
4719 # ------------------------
4720 sub handle_tests_dejagnu
4721 {
4722 push (@check_tests, 'check-DEJAGNU');
4723 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4724 }
4726 sub handle_per_suffix_test
4727 {
4728 my ($test_suffix, %transform) = @_;
4729 my ($pfx, $generic, $am_exeext);
4730 if ($test_suffix eq '')
4731 {
4732 $pfx = '';
4733 $generic = 0;
4734 $am_exeext = 'FALSE';
4735 }
4736 else
4737 {
4738 prog_error ("test suffix '$test_suffix' lacks leading dot")
4739 unless $test_suffix =~ m/^\.(.*)/;
4740 $pfx = uc ($1) . '_';
4741 $generic = 1;
4742 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4743 : 'FALSE';
4744 }
4745 # The "test driver" program, deputed to handle tests protocol used by
4746 # test scripts. By default, it's assumed that no protocol is used, so
4747 # we fall back to the old behaviour, implemented by the 'test-driver'
4748 # auxiliary script.
4749 if (! var "${pfx}LOG_DRIVER")
4750 {
4751 require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
4752 define_variable ("${pfx}LOG_DRIVER",
4753 "\$(SHELL) $am_config_aux_dir/test-driver",
4754 INTERNAL);
4755 }
4756 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4757 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4758 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4759 my $compile = "${pfx}LOG_COMPILE";
4760 define_variable ($compile,
4761 '$(' . $pfx . 'LOG_COMPILER)'
4762 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4763 . ' $(' . $pfx . 'LOG_FLAGS)',
4764 INTERNAL);
4765 $output_rules .= file_contents ('check2', new Automake::Location,
4766 GENERIC => $generic,
4767 DRIVER => $driver,
4768 DRIVER_FLAGS => $driver_flags,
4769 COMPILE => '$(' . $compile . ')',
4770 EXT => $test_suffix,
4771 am__EXEEXT => $am_exeext,
4772 %transform);
4773 }
4775 # is_valid_test_extension ($EXT)
4776 # ------------------------------
4777 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4778 # otherwise.
4779 sub is_valid_test_extension ($)
4780 {
4781 my $ext = shift;
4782 return 1
4783 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4784 return 1
4785 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4786 return 0;
4787 }
4789 # Handle TESTS variable and other checks.
4790 sub handle_tests
4791 {
4792 if (option 'dejagnu')
4793 {
4794 &handle_tests_dejagnu;
4795 }
4796 else
4797 {
4798 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4799 {
4800 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4801 . "'AUTOMAKE_OPTIONS'");
4802 }
4803 }
4805 if (var ('TESTS'))
4806 {
4807 push (@check_tests, 'check-TESTS');
4808 my $check_deps = "@check";
4809 $output_rules .= &file_contents ('check', new Automake::Location,
4810 SERIAL_TESTS => !! option 'serial-tests',
4811 CHECK_DEPS => $check_deps);
4813 # Tests that are known programs should have $(EXEEXT) appended.
4814 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4815 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4816 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4817 if (var ('XFAIL_TESTS'));
4819 if (! option 'serial-tests')
4820 {
4821 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4822 my $suff = '.test';
4823 my $at_exeext = '';
4824 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4825 if ($handle_exeext)
4826 {
4827 $at_exeext = subst ('EXEEXT');
4828 $suff = $at_exeext . ' ' . $suff;
4829 }
4830 if (! var 'TEST_EXTENSIONS')
4831 {
4832 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4833 }
4834 my $var = var 'TEST_EXTENSIONS';
4835 # Currently, we are not able to deal with conditional contents
4836 # in TEST_EXTENSIONS.
4837 if ($var->has_conditional_contents)
4838 {
4839 msg_var 'unsupported', $var,
4840 "'TEST_EXTENSIONS' cannot have conditional contents";
4841 }
4842 my @test_suffixes = $var->value_as_list_recursive;
4843 if ((my @invalid_test_suffixes =
4844 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4845 {
4846 error $var->rdef (TRUE)->location,
4847 "invalid test extensions: @invalid_test_suffixes";
4848 }
4849 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4850 if ($handle_exeext)
4851 {
4852 unshift (@test_suffixes, $at_exeext)
4853 unless $test_suffixes[0] eq $at_exeext;
4854 }
4855 unshift (@test_suffixes, '');
4857 transform_variable_recursively
4858 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4859 sub {
4860 my ($subvar, $val, $cond, $full_cond) = @_;
4861 my $obj = $val;
4862 return $obj
4863 if $val =~ /^\@.*\@$/;
4864 $obj =~ s/\$\(EXEEXT\)$//o;
4866 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4867 {
4868 msg ('error', $subvar->rdef ($cond)->location,
4869 "using '$1' in TESTS is currently broken: '$val'");
4870 }
4872 foreach my $test_suffix (@test_suffixes)
4873 {
4874 next
4875 if $test_suffix eq $at_exeext || $test_suffix eq '';
4876 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4877 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4878 }
4879 my $base = $obj;
4880 $obj .= '.log';
4881 handle_per_suffix_test ('',
4882 OBJ => $obj,
4883 BASE => $base,
4884 SOURCE => $val);
4885 return $obj;
4886 });
4888 my $nhelper=1;
4889 my $prev = 'TESTS';
4890 my $post = '';
4891 my $last_suffix = $test_suffixes[$#test_suffixes];
4892 my $cur = '';
4893 foreach my $test_suffix (@test_suffixes)
4894 {
4895 if ($test_suffix eq $last_suffix)
4896 {
4897 $cur = 'TEST_LOGS';
4898 }
4899 else
4900 {
4901 $cur = 'am__test_logs' . $nhelper;
4902 }
4903 define_variable ($cur,
4904 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
4905 $post = '.log';
4906 $prev = $cur;
4907 $nhelper++;
4908 if ($test_suffix ne $at_exeext && $test_suffix ne '')
4909 {
4910 handle_per_suffix_test ($test_suffix,
4911 OBJ => '',
4912 BASE => '$*',
4913 SOURCE => '$<');
4914 }
4915 }
4916 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
4917 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
4918 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
4919 }
4920 }
4921 }
4923 # Handle Emacs Lisp.
4924 sub handle_emacs_lisp
4925 {
4926 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4927 'lisp', 'noinst');
4929 return if ! @elfiles;
4931 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4932 map { $_->[1] } @elfiles);
4933 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4934 '$(am__ELFILES:.el=.elc)');
4935 # This one can be overridden by users.
4936 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4938 push @all, '$(ELCFILES)';
4940 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4941 'EMACS', 'lispdir');
4942 }
4944 # Handle Python
4945 sub handle_python
4946 {
4947 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4948 'noinst');
4949 return if ! @pyfiles;
4951 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4952 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4953 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4954 }
4956 # Handle Java.
4957 sub handle_java
4958 {
4959 my @sourcelist = &am_install_var ('-candist',
4960 'java', 'JAVA',
4961 'noinst', 'check');
4962 return if ! @sourcelist;
4964 my @prefixes = am_primary_prefixes ('JAVA', 1,
4965 'noinst', 'check');
4967 my $dir;
4968 my @java_sources = ();
4969 foreach my $prefix (@prefixes)
4970 {
4971 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
4973 next
4974 if $curs eq 'EXTRA';
4976 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
4978 if (defined $dir)
4979 {
4980 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4981 unless $curs eq $dir;
4982 }
4984 $dir = $curs;
4985 }
4987 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
4988 "@java_sources");
4990 if ($dir eq 'check')
4991 {
4992 push (@check, "class$dir.stamp");
4993 }
4994 else
4995 {
4996 push (@all, "class$dir.stamp");
4997 }
4998 }
5001 # Handle some of the minor options.
5002 sub handle_minor_options
5003 {
5004 if (option 'readme-alpha')
5005 {
5006 if ($relative_dir eq '.')
5007 {
5008 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5009 {
5010 msg ('error-gnits', $package_version_location,
5011 "version '$package_version' doesn't follow " .
5012 "Gnits standards");
5013 }
5014 if (defined $1 && -f 'README-alpha')
5015 {
5016 # This means we have an alpha release. See
5017 # GNITS_VERSION_PATTERN for details.
5018 push_dist_common ('README-alpha');
5019 }
5020 }
5021 }
5022 }
5024 ################################################################
5026 # ($OUTPUT, @INPUTS)
5027 # &split_config_file_spec ($SPEC)
5028 # -------------------------------
5029 # Decode the Autoconf syntax for config files (files, headers, links
5030 # etc.).
5031 sub split_config_file_spec ($)
5032 {
5033 my ($spec) = @_;
5034 my ($output, @inputs) = split (/:/, $spec);
5036 push @inputs, "$output.in"
5037 unless @inputs;
5039 return ($output, @inputs);
5040 }
5042 # $input
5043 # locate_am (@POSSIBLE_SOURCES)
5044 # -----------------------------
5045 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5046 # This functions returns the first *.in file for which a *.am exists.
5047 # It returns undef otherwise.
5048 sub locate_am (@)
5049 {
5050 my (@rest) = @_;
5051 my $input;
5052 foreach my $file (@rest)
5053 {
5054 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5055 {
5056 $input = $file;
5057 last;
5058 }
5059 }
5060 return $input;
5061 }
5063 my %make_list;
5065 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5066 # ---------------------------------------------------
5067 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5068 # (or AC_OUTPUT).
5069 sub scan_autoconf_config_files ($$)
5070 {
5071 my ($where, $config_files) = @_;
5073 # Look at potential Makefile.am's.
5074 foreach (split ' ', $config_files)
5075 {
5076 # Must skip empty string for Perl 4.
5077 next if $_ eq "\\" || $_ eq '';
5079 # Handle $local:$input syntax.
5080 my ($local, @rest) = split (/:/);
5081 @rest = ("$local.in",) unless @rest;
5082 # Keep in sync with 'conffile-leading-dot.test'.
5083 msg ('unsupported', $where,
5084 "omit leading './' from config file names such as '$local';"
5085 . "\nremake rules might be subtly broken otherwise")
5086 if ($local =~ /^\.\//);
5087 my $input = locate_am @rest;
5088 if ($input)
5089 {
5090 # We have a file that automake should generate.
5091 $make_list{$input} = join (':', ($local, @rest));
5092 }
5093 else
5094 {
5095 # We have a file that automake should cause to be
5096 # rebuilt, but shouldn't generate itself.
5097 push (@other_input_files, $_);
5098 }
5099 $ac_config_files_location{$local} = $where;
5100 $ac_config_files_condition{$local} =
5101 new Automake::Condition (@cond_stack)
5102 if (@cond_stack);
5103 }
5104 }
5107 # &scan_autoconf_traces ($FILENAME)
5108 # ---------------------------------
5109 sub scan_autoconf_traces ($)
5110 {
5111 my ($filename) = @_;
5113 # Macros to trace, with their minimal number of arguments.
5114 #
5115 # IMPORTANT: If you add a macro here, you should also add this macro
5116 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5117 my %traced = (
5118 AC_CANONICAL_BUILD => 0,
5119 AC_CANONICAL_HOST => 0,
5120 AC_CANONICAL_TARGET => 0,
5121 AC_CONFIG_AUX_DIR => 1,
5122 AC_CONFIG_FILES => 1,
5123 AC_CONFIG_HEADERS => 1,
5124 AC_CONFIG_LIBOBJ_DIR => 1,
5125 AC_CONFIG_LINKS => 1,
5126 AC_FC_SRCEXT => 1,
5127 AC_INIT => 0,
5128 AC_LIBSOURCE => 1,
5129 AC_REQUIRE_AUX_FILE => 1,
5130 AC_SUBST_TRACE => 1,
5131 AM_AUTOMAKE_VERSION => 1,
5132 AM_PROG_MKDIR_P => 0, # FIXME: to be removed in 1.14
5133 AM_CONDITIONAL => 2,
5134 AM_EXTRA_RECURSIVE_TARGETS => 1,
5135 AM_GNU_GETTEXT => 0,
5136 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5137 AM_INIT_AUTOMAKE => 0,
5138 AM_MAINTAINER_MODE => 0,
5139 AM_PROG_AR => 0,
5140 AM_PROG_CC_C_O => 0,
5141 _AM_SUBST_NOTMAKE => 1,
5142 _AM_COND_IF => 1,
5143 _AM_COND_ELSE => 1,
5144 _AM_COND_ENDIF => 1,
5145 LT_SUPPORTED_TAG => 1,
5146 _LT_AC_TAGCONFIG => 0,
5147 m4_include => 1,
5148 m4_sinclude => 1,
5149 sinclude => 1,
5150 );
5152 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5154 # Use a separator unlikely to be used, not ':', the default, which
5155 # has a precise meaning for AC_CONFIG_FILES and so on.
5156 $traces .= join (' ',
5157 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5158 (keys %traced));
5160 my $tracefh = new Automake::XFile ("$traces $filename |");
5161 verb "reading $traces";
5163 @cond_stack = ();
5164 my $where;
5166 while ($_ = $tracefh->getline)
5167 {
5168 chomp;
5169 my ($here, $depth, @args) = split (/::/);
5170 $where = new Automake::Location $here;
5171 my $macro = $args[0];
5173 prog_error ("unrequested trace '$macro'")
5174 unless exists $traced{$macro};
5176 # Skip and diagnose malformed calls.
5177 if ($#args < $traced{$macro})
5178 {
5179 msg ('syntax', $where, "not enough arguments for $macro");
5180 next;
5181 }
5183 # Alphabetical ordering please.
5184 if ($macro eq 'AC_CANONICAL_BUILD')
5185 {
5186 if ($seen_canonical <= AC_CANONICAL_BUILD)
5187 {
5188 $seen_canonical = AC_CANONICAL_BUILD;
5189 }
5190 }
5191 elsif ($macro eq 'AC_CANONICAL_HOST')
5192 {
5193 if ($seen_canonical <= AC_CANONICAL_HOST)
5194 {
5195 $seen_canonical = AC_CANONICAL_HOST;
5196 }
5197 }
5198 elsif ($macro eq 'AC_CANONICAL_TARGET')
5199 {
5200 $seen_canonical = AC_CANONICAL_TARGET;
5201 }
5202 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5203 {
5204 if ($seen_init_automake)
5205 {
5206 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5207 . "AM_INIT_AUTOMAKE ...", partial => 1);
5208 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5209 }
5210 $config_aux_dir = $args[1];
5211 $config_aux_dir_set_in_configure_ac = 1;
5212 check_directory ($config_aux_dir, $where);
5213 }
5214 elsif ($macro eq 'AC_CONFIG_FILES')
5215 {
5216 # Look at potential Makefile.am's.
5217 scan_autoconf_config_files ($where, $args[1]);
5218 }
5219 elsif ($macro eq 'AC_CONFIG_HEADERS')
5220 {
5221 foreach my $spec (split (' ', $args[1]))
5222 {
5223 my ($dest, @src) = split (':', $spec);
5224 $ac_config_files_location{$dest} = $where;
5225 push @config_headers, $spec;
5226 }
5227 }
5228 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5229 {
5230 $config_libobj_dir = $args[1];
5231 check_directory ($config_libobj_dir, $where);
5232 }
5233 elsif ($macro eq 'AC_CONFIG_LINKS')
5234 {
5235 foreach my $spec (split (' ', $args[1]))
5236 {
5237 my ($dest, $src) = split (':', $spec);
5238 $ac_config_files_location{$dest} = $where;
5239 push @config_links, $spec;
5240 }
5241 }
5242 elsif ($macro eq 'AC_FC_SRCEXT')
5243 {
5244 my $suffix = $args[1];
5245 # These flags are used as %SOURCEFLAG% in depend2.am,
5246 # where the trailing space is important.
5247 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5248 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5249 }
5250 elsif ($macro eq 'AC_INIT')
5251 {
5252 if (defined $args[2])
5253 {
5254 $package_version = $args[2];
5255 $package_version_location = $where;
5256 }
5257 }
5258 elsif ($macro eq 'AC_LIBSOURCE')
5259 {
5260 $libsources{$args[1]} = $here;
5261 }
5262 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5263 {
5264 # Only remember the first time a file is required.
5265 $required_aux_file{$args[1]} = $where
5266 unless exists $required_aux_file{$args[1]};
5267 }
5268 elsif ($macro eq 'AC_SUBST_TRACE')
5269 {
5270 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5271 # AC_SUBST(5), then too bad.
5272 $configure_vars{$args[1]} = $where
5273 if $args[1] =~ /^\w+$/;
5274 }
5275 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5276 {
5277 error ($where,
5278 "version mismatch. This is Automake $VERSION,\n" .
5279 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5280 "comes from Automake $args[1]. You should recreate\n" .
5281 "aclocal.m4 with aclocal and run automake again.\n",
5282 # $? = 63 is used to indicate version mismatch to missing.
5283 exit_code => 63)
5284 if $VERSION ne $args[1];
5286 $seen_automake_version = 1;
5287 }
5288 elsif ($macro eq 'AM_PROG_MKDIR_P') # FIXME: to be removed in 1.14
5289 {
5290 msg 'obsolete', $where, <<'EOF';
5291 The 'AM_PROG_MKDIR_P' macro is deprecated, and will soon be removed.
5292 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5293 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5294 EOF
5295 }
5296 elsif ($macro eq 'AM_CONDITIONAL')
5297 {
5298 $configure_cond{$args[1]} = $where;
5299 }
5300 elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
5301 {
5302 # Empty leading/trailing fields might be produced by split,
5303 # hence the grep is really needed.
5304 push @extra_recursive_targets,
5305 grep (/./, (split /\s+/, $args[1]));
5306 }
5307 elsif ($macro eq 'AM_GNU_GETTEXT')
5308 {
5309 $seen_gettext = $where;
5310 $ac_gettext_location = $where;
5311 $seen_gettext_external = grep ($_ eq 'external', @args);
5312 }
5313 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5314 {
5315 $seen_gettext_intl = $where;
5316 }
5317 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5318 {
5319 $seen_init_automake = $where;
5320 if (defined $args[2])
5321 {
5322 msg 'obsolete', $where, <<'EOF';
5323 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5324 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation
5325 EOF
5326 $package_version = $args[2];
5327 $package_version_location = $where;
5328 }
5329 elsif (defined $args[1])
5330 {
5331 my @opts = split (' ', $args[1]);
5332 @opts = map { { option => $_, where => $where } } @opts;
5333 exit $exit_code if process_global_option_list (@opts);
5334 }
5335 }
5336 elsif ($macro eq 'AM_MAINTAINER_MODE')
5337 {
5338 $seen_maint_mode = $where;
5339 }
5340 elsif ($macro eq 'AM_PROG_AR')
5341 {
5342 $seen_ar = $where;
5343 }
5344 elsif ($macro eq 'AM_PROG_CC_C_O')
5345 {
5346 $seen_cc_c_o = $where;
5347 }
5348 elsif ($macro eq '_AM_COND_IF')
5349 {
5350 cond_stack_if ('', $args[1], $where);
5351 error ($where, "missing m4 quoting, macro depth $depth")
5352 if ($depth != 1);
5353 }
5354 elsif ($macro eq '_AM_COND_ELSE')
5355 {
5356 cond_stack_else ('!', $args[1], $where);
5357 error ($where, "missing m4 quoting, macro depth $depth")
5358 if ($depth != 1);
5359 }
5360 elsif ($macro eq '_AM_COND_ENDIF')
5361 {
5362 cond_stack_endif (undef, undef, $where);
5363 error ($where, "missing m4 quoting, macro depth $depth")
5364 if ($depth != 1);
5365 }
5366 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5367 {
5368 $ignored_configure_vars{$args[1]} = $where;
5369 }
5370 elsif ($macro eq 'm4_include'
5371 || $macro eq 'm4_sinclude'
5372 || $macro eq 'sinclude')
5373 {
5374 # Skip missing 'sinclude'd files.
5375 next if $macro ne 'm4_include' && ! -f $args[1];
5377 # Some modified versions of Autoconf don't use
5378 # frozen files. Consequently it's possible that we see all
5379 # m4_include's performed during Autoconf's startup.
5380 # Obviously we don't want to distribute Autoconf's files
5381 # so we skip absolute filenames here.
5382 push @configure_deps, '$(top_srcdir)/' . $args[1]
5383 unless $here =~ m,^(?:\w:)?[\\/],;
5384 # Keep track of the greatest timestamp.
5385 if (-e $args[1])
5386 {
5387 my $mtime = mtime $args[1];
5388 $configure_deps_greatest_timestamp = $mtime
5389 if $mtime > $configure_deps_greatest_timestamp;
5390 }
5391 }
5392 elsif ($macro eq 'LT_SUPPORTED_TAG')
5393 {
5394 $libtool_tags{$args[1]} = 1;
5395 $libtool_new_api = 1;
5396 }
5397 elsif ($macro eq '_LT_AC_TAGCONFIG')
5398 {
5399 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5400 # We use it to detect whether tags are supported. Our
5401 # preferred interface is LT_SUPPORTED_TAG, but it was
5402 # introduced in Libtool 1.6.
5403 if (0 == keys %libtool_tags)
5404 {
5405 # Hardcode the tags supported by Libtool 1.5.
5406 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5407 }
5408 }
5409 }
5411 error ($where, "condition stack not properly closed")
5412 if (@cond_stack);
5414 $tracefh->close;
5415 }
5418 # &scan_autoconf_files ()
5419 # -----------------------
5420 # Check whether we use 'configure.ac' or 'configure.in'.
5421 # Scan it (and possibly 'aclocal.m4') for interesting things.
5422 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5423 sub scan_autoconf_files ()
5424 {
5425 # Reinitialize libsources here. This isn't really necessary,
5426 # since we currently assume there is only one configure.ac. But
5427 # that won't always be the case.
5428 %libsources = ();
5430 # Keep track of the youngest configure dependency.
5431 $configure_deps_greatest_timestamp = mtime $configure_ac;
5432 if (-e 'aclocal.m4')
5433 {
5434 my $mtime = mtime 'aclocal.m4';
5435 $configure_deps_greatest_timestamp = $mtime
5436 if $mtime > $configure_deps_greatest_timestamp;
5437 }
5439 scan_autoconf_traces ($configure_ac);
5441 @configure_input_files = sort keys %make_list;
5442 # Set input and output files if not specified by user.
5443 if (! @input_files)
5444 {
5445 @input_files = @configure_input_files;
5446 %output_files = %make_list;
5447 }
5450 if (! $seen_init_automake)
5451 {
5452 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5453 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5454 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5455 . "and that aclocal.m4 was recently regenerated "
5456 . "(using aclocal)");
5457 }
5458 else
5459 {
5460 if (! $seen_automake_version)
5461 {
5462 if (-f 'aclocal.m4')
5463 {
5464 error ($seen_init_automake,
5465 "your implementation of AM_INIT_AUTOMAKE comes from " .
5466 "an\nold Automake version. You should recreate " .
5467 "aclocal.m4\nwith aclocal and run automake again",
5468 # $? = 63 is used to indicate version mismatch to missing.
5469 exit_code => 63);
5470 }
5471 else
5472 {
5473 error ($seen_init_automake,
5474 "no proper implementation of AM_INIT_AUTOMAKE was " .
5475 "found,\nprobably because aclocal.m4 is missing.\n" .
5476 "You should run aclocal to create this file, then\n" .
5477 "run automake again");
5478 }
5479 }
5480 }
5482 locate_aux_dir ();
5484 # Look for some files we need. Always check for these. This
5485 # check must be done for every run, even those where we are only
5486 # looking at a subdir Makefile. We must set relative_dir for
5487 # push_required_file to work.
5488 # Sort the files for stable verbose output.
5489 $relative_dir = '.';
5490 foreach my $file (sort keys %required_aux_file)
5491 {
5492 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5493 }
5494 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5495 if -f $config_aux_dir . '/install.sh';
5497 # Preserve dist_common for later.
5498 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5500 }
5502 ################################################################
5504 # Do any extra checking for GNU standards.
5505 sub check_gnu_standards
5506 {
5507 if ($relative_dir eq '.')
5508 {
5509 # In top level (or only) directory.
5510 require_file ("$am_file.am", GNU,
5511 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5513 # Accept one of these three licenses; default to COPYING.
5514 # Make sure we do not overwrite an existing license.
5515 my $license;
5516 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5517 {
5518 if (-f $_)
5519 {
5520 $license = $_;
5521 last;
5522 }
5523 }
5524 require_file ("$am_file.am", GNU, 'COPYING')
5525 unless $license;
5526 }
5528 for my $opt ('no-installman', 'no-installinfo')
5529 {
5530 msg ('error-gnu', option $opt,
5531 "option '$opt' disallowed by GNU standards")
5532 if option $opt;
5533 }
5534 }
5536 # Do any extra checking for GNITS standards.
5537 sub check_gnits_standards
5538 {
5539 if ($relative_dir eq '.')
5540 {
5541 # In top level (or only) directory.
5542 require_file ("$am_file.am", GNITS, 'THANKS');
5543 }
5544 }
5546 ################################################################
5547 #
5548 # Functions to handle files of each language.
5550 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5551 # simple formula: Return value is LANG_SUBDIR if the resulting object
5552 # file should be in a subdir if the source file is, LANG_PROCESS if
5553 # file is to be dealt with, LANG_IGNORE otherwise.
5555 # Much of the actual processing is handled in
5556 # handle_single_transform. These functions exist so that
5557 # auxiliary information can be recorded for a later cleanup pass.
5558 # Note that the calls to these functions are computed, so don't bother
5559 # searching for their precise names in the source.
5561 # This is just a convenience function that can be used to determine
5562 # when a subdir object should be used.
5563 sub lang_sub_obj
5564 {
5565 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5566 }
5568 # Rewrite a single C source file.
5569 sub lang_c_rewrite
5570 {
5571 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5573 my $r = LANG_PROCESS;
5574 if (option 'subdir-objects')
5575 {
5576 $r = LANG_SUBDIR;
5577 if ($directory && $directory ne '.')
5578 {
5579 $base = $directory . '/' . $base;
5581 # libtool is always able to put the object at the proper place,
5582 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5583 msg_var ('portability', $var,
5584 "compiling '$base.c' in subdir requires "
5585 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5586 uniq_scope => US_GLOBAL,
5587 uniq_part => 'AM_PROG_CC_C_O subdir')
5588 unless $seen_cc_c_o || $obj eq '.lo';
5589 }
5590 }
5592 if (! $seen_cc_c_o
5593 && $have_per_exec_flags
5594 && ! option 'subdir-objects'
5595 && $obj ne '.lo')
5596 {
5597 msg_var ('portability',
5598 $var, "compiling '$base.c' with per-target flags requires "
5599 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5600 uniq_scope => US_GLOBAL,
5601 uniq_part => 'AM_PROG_CC_C_O per-target')
5602 }
5604 return $r;
5605 }
5607 # Rewrite a single header file.
5608 sub lang_header_rewrite
5609 {
5610 # Header files are simply ignored.
5611 return LANG_IGNORE;
5612 }
5614 # Rewrite a single Vala source file.
5615 sub lang_vala_rewrite
5616 {
5617 my ($directory, $base, $ext) = @_;
5619 (my $newext = $ext) =~ s/vala$/c/;
5620 return (LANG_SUBDIR, $newext);
5621 }
5623 # Rewrite a single yacc/yacc++ file.
5624 sub lang_yacc_rewrite
5625 {
5626 my ($directory, $base, $ext) = @_;
5628 my $r = &lang_sub_obj;
5629 (my $newext = $ext) =~ tr/y/c/;
5630 return ($r, $newext);
5631 }
5632 sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
5634 # Rewrite a single lex/lex++ file.
5635 sub lang_lex_rewrite
5636 {
5637 my ($directory, $base, $ext) = @_;
5639 my $r = &lang_sub_obj;
5640 (my $newext = $ext) =~ tr/l/c/;
5641 return ($r, $newext);
5642 }
5643 sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
5645 # Rewrite a single Java file.
5646 sub lang_java_rewrite
5647 {
5648 return LANG_SUBDIR;
5649 }
5651 # The lang_X_finish functions are called after all source file
5652 # processing is done. Each should handle defining rules for the
5653 # language, etc. A finish function is only called if a source file of
5654 # the appropriate type has been seen.
5656 sub lang_vala_finish_target ($$)
5657 {
5658 my ($self, $name) = @_;
5660 my $derived = canonicalize ($name);
5661 my $var = var "${derived}_SOURCES";
5662 return unless $var;
5664 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5666 # For automake bug#11229.
5667 return unless @vala_sources;
5669 foreach my $vala_file (@vala_sources)
5670 {
5671 my $c_file = $vala_file;
5672 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5673 {
5674 $c_file = "\$(srcdir)/$c_file";
5675 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5676 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5677 . "\t\@if test -f \$@; then :; else \\\n"
5678 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5679 . "\tfi\n";
5680 $clean_files{$c_file} = MAINTAINER_CLEAN;
5681 }
5682 }
5684 # Add rebuild rules for generated header and vapi files
5685 my $flags = var ($derived . '_VALAFLAGS');
5686 if ($flags)
5687 {
5688 my $lastflag = '';
5689 foreach my $flag ($flags->value_as_list_recursive)
5690 {
5691 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5692 '--vapi', '--internal-vapi', '--gir')))
5693 {
5694 my $headerfile = "\$(srcdir)/$flag";
5695 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5696 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5697 . "\t\@if test -f \$@; then :; else \\\n"
5698 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5699 . "\tfi\n";
5701 # valac is not used when building from dist tarballs
5702 # distribute the generated files
5703 push_dist_common ($headerfile);
5704 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5705 }
5706 $lastflag = $flag;
5707 }
5708 }
5710 my $compile = $self->compile;
5712 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5713 # rule into '${derived}_VALAFLAGS' if it exists.
5714 my $val = "${derived}_VALAFLAGS";
5715 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5716 if set_seen ($val);
5718 # VALAFLAGS is a user variable (per GNU Standards),
5719 # it should not be overridden in the Makefile...
5720 check_user_variables 'VALAFLAGS';
5722 my $dirname = dirname ($name);
5724 # Only generate C code, do not run C compiler
5725 $compile .= " -C";
5727 my $verbose = verbose_flag ('VALAC');
5728 my $silent = silent_flag ();
5729 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5731 $output_rules .=
5732 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5733 # Since the C files generated from the vala sources depend on the
5734 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5735 # those of the C files generated by the valac invocation below (this is
5736 # especially important on systems with sub-second timestamp resolution).
5737 # Thus we need to create the stamp file *before* invoking valac, and to
5738 # move it to its final location only after valac has been invoked.
5739 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5740 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5741 "\t${silent}mv -f \$\@-t \$\@\n";
5743 push_dist_common ($stampfile);
5745 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5746 }
5748 # Add output rules to invoke valac and create stamp file as a witness
5749 # to handle multiple outputs. This function is called after all source
5750 # file processing is done.
5751 sub lang_vala_finish
5752 {
5753 my ($self) = @_;
5755 foreach my $prog (keys %known_programs)
5756 {
5757 lang_vala_finish_target ($self, $prog);
5758 }
5760 while (my ($name) = each %known_libraries)
5761 {
5762 lang_vala_finish_target ($self, $name);
5763 }
5764 }
5766 # The built .c files should be cleaned only on maintainer-clean
5767 # as the .c files are distributed. This function is called for each
5768 # .vala source file.
5769 sub lang_vala_target_hook
5770 {
5771 my ($self, $aggregate, $output, $input, %transform) = @_;
5773 $clean_files{$output} = MAINTAINER_CLEAN;
5774 }
5776 # This is a yacc helper which is called whenever we have decided to
5777 # compile a yacc file.
5778 sub lang_yacc_target_hook
5779 {
5780 my ($self, $aggregate, $output, $input, %transform) = @_;
5782 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5783 # have to to generate special code.
5784 my $yflags_contains_minus_d = 0;
5786 foreach my $pfx ("", "${aggregate}_")
5787 {
5788 my $yflagsvar = var ("${pfx}YFLAGS");
5789 next unless $yflagsvar;
5790 # We cannot work reliably with conditionally-defined YFLAGS.
5791 if ($yflagsvar->has_conditional_contents)
5792 {
5793 msg_var ('unsupported', $yflagsvar,
5794 "'${pfx}YFLAGS' cannot have conditional contents");
5795 }
5796 else
5797 {
5798 $yflags_contains_minus_d = 1
5799 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5800 }
5801 }
5803 if ($yflags_contains_minus_d)
5804 {
5805 # Found a '-d' that applies to the compilation of this file.
5806 # Add a dependency for the generated header file, and arrange
5807 # for that file to be included in the distribution.
5809 # The extension of the output file (e.g., '.c' or '.cxx').
5810 # We'll need it to compute the name of the generated header file.
5811 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5813 # We know that a yacc input should be turned into either a C or
5814 # C++ output file. We depend on this fact (here and in yacc.am),
5815 # so check that it really holds.
5816 my $lang = $languages{$extension_map{$output_ext}};
5817 prog_error "invalid output name '$output' for yacc file '$input'"
5818 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5820 (my $header_ext = $output_ext) =~ s/c/h/g;
5821 # Quote $output_ext in the regexp, so that dots in it are taken
5822 # as literal dots, not as metacharacters.
5823 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5825 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5826 RULE_AUTOMAKE, TRUE,
5827 INTERNAL))
5828 {
5829 my $condstr = $cond->subst_string;
5830 $output_rules .=
5831 "$condstr${header}: $output\n"
5832 # Recover from removal of $header
5833 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5834 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5835 }
5836 # Distribute the generated file, unless its .y source was
5837 # listed in a nodist_ variable. (&handle_source_transform
5838 # will set DIST_SOURCE.)
5839 &push_dist_common ($header)
5840 if $transform{'DIST_SOURCE'};
5842 # The GNU rules say that yacc/lex output files should be removed
5843 # by maintainer-clean. However, if the files are not distributed,
5844 # then we want to remove them with "make clean"; otherwise,
5845 # "make distcheck" will fail.
5846 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5847 }
5848 # See the comment above for $HEADER.
5849 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5850 }
5852 # This is a lex helper which is called whenever we have decided to
5853 # compile a lex file.
5854 sub lang_lex_target_hook
5855 {
5856 my ($self, $aggregate, $output, $input, %transform) = @_;
5857 # The GNU rules say that yacc/lex output files should be removed
5858 # by maintainer-clean. However, if the files are not distributed,
5859 # then we want to remove them with "make clean"; otherwise,
5860 # "make distcheck" will fail.
5861 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5862 }
5864 # This is a helper for both lex and yacc.
5865 sub yacc_lex_finish_helper
5866 {
5867 return if defined $language_scratch{'lex-yacc-done'};
5868 $language_scratch{'lex-yacc-done'} = 1;
5870 # FIXME: for now, no line number.
5871 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5872 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5873 }
5875 sub lang_yacc_finish
5876 {
5877 return if defined $language_scratch{'yacc-done'};
5878 $language_scratch{'yacc-done'} = 1;
5880 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5882 yacc_lex_finish_helper;
5883 }
5886 sub lang_lex_finish
5887 {
5888 return if defined $language_scratch{'lex-done'};
5889 $language_scratch{'lex-done'} = 1;
5891 yacc_lex_finish_helper;
5892 }
5895 # Given a hash table of linker names, pick the name that has the most
5896 # precedence. This is lame, but something has to have global
5897 # knowledge in order to eliminate the conflict. Add more linkers as
5898 # required.
5899 sub resolve_linker
5900 {
5901 my (%linkers) = @_;
5903 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5904 {
5905 return $l if defined $linkers{$l};
5906 }
5907 return 'LINK';
5908 }
5910 # Called to indicate that an extension was used.
5911 sub saw_extension
5912 {
5913 my ($ext) = @_;
5914 $extension_seen{$ext} = 1;
5915 }
5917 # register_language (%ATTRIBUTE)
5918 # ------------------------------
5919 # Register a single language.
5920 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5921 sub register_language (%)
5922 {
5923 my (%option) = @_;
5925 # Set the defaults.
5926 $option{'autodep'} = 'no'
5927 unless defined $option{'autodep'};
5928 $option{'linker'} = ''
5929 unless defined $option{'linker'};
5930 $option{'flags'} = []
5931 unless defined $option{'flags'};
5932 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5933 unless defined $option{'output_extensions'};
5934 $option{'nodist_specific'} = 0
5935 unless defined $option{'nodist_specific'};
5937 my $lang = new Language (%option);
5939 # Fill indexes.
5940 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5941 $languages{$lang->name} = $lang;
5942 my $link = $lang->linker;
5943 if ($link)
5944 {
5945 if (exists $link_languages{$link})
5946 {
5947 prog_error ("'$link' has different definitions in "
5948 . $lang->name . " and " . $link_languages{$link}->name)
5949 if $lang->link ne $link_languages{$link}->link;
5950 }
5951 else
5952 {
5953 $link_languages{$link} = $lang;
5954 }
5955 }
5957 # Update the pattern of known extensions.
5958 accept_extensions (@{$lang->extensions});
5960 # Upate the $suffix_rule map.
5961 foreach my $suffix (@{$lang->extensions})
5962 {
5963 foreach my $dest (&{$lang->output_extensions} ($suffix))
5964 {
5965 register_suffix_rule (INTERNAL, $suffix, $dest);
5966 }
5967 }
5968 }
5970 # derive_suffix ($EXT, $OBJ)
5971 # --------------------------
5972 # This function is used to find a path from a user-specified suffix $EXT
5973 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
5974 sub derive_suffix ($$)
5975 {
5976 my ($source_ext, $obj) = @_;
5978 while (! $extension_map{$source_ext}
5979 && $source_ext ne $obj
5980 && exists $suffix_rules->{$source_ext}
5981 && exists $suffix_rules->{$source_ext}{$obj})
5982 {
5983 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5984 }
5986 return $source_ext;
5987 }
5990 ################################################################
5992 # Pretty-print something and append to output_rules.
5993 sub pretty_print_rule
5994 {
5995 $output_rules .= &makefile_wrap (@_);
5996 }
5999 ################################################################
6002 ## -------------------------------- ##
6003 ## Handling the conditional stack. ##
6004 ## -------------------------------- ##
6007 # $STRING
6008 # make_conditional_string ($NEGATE, $COND)
6009 # ----------------------------------------
6010 sub make_conditional_string ($$)
6011 {
6012 my ($negate, $cond) = @_;
6013 $cond = "${cond}_TRUE"
6014 unless $cond =~ /^TRUE|FALSE$/;
6015 $cond = Automake::Condition::conditional_negate ($cond)
6016 if $negate;
6017 return $cond;
6018 }
6021 my %_am_macro_for_cond =
6022 (
6023 AMDEP => "one of the compiler tests\n"
6024 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6025 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6026 am__fastdepCC => 'AC_PROG_CC',
6027 am__fastdepCCAS => 'AM_PROG_AS',
6028 am__fastdepCXX => 'AC_PROG_CXX',
6029 am__fastdepGCJ => 'AM_PROG_GCJ',
6030 am__fastdepOBJC => 'AC_PROG_OBJC',
6031 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6032 am__fastdepUPC => 'AM_PROG_UPC'
6033 );
6035 # $COND
6036 # cond_stack_if ($NEGATE, $COND, $WHERE)
6037 # --------------------------------------
6038 sub cond_stack_if ($$$)
6039 {
6040 my ($negate, $cond, $where) = @_;
6042 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6043 {
6044 my $text = "$cond does not appear in AM_CONDITIONAL";
6045 my $scope = US_LOCAL;
6046 if (exists $_am_macro_for_cond{$cond})
6047 {
6048 my $mac = $_am_macro_for_cond{$cond};
6049 $text .= "\n The usual way to define '$cond' is to add ";
6050 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6051 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6052 # These warnings appear in Automake files (depend2.am),
6053 # so there is no need to display them more than once:
6054 $scope = US_GLOBAL;
6055 }
6056 error $where, $text, uniq_scope => $scope;
6057 }
6059 push (@cond_stack, make_conditional_string ($negate, $cond));
6061 return new Automake::Condition (@cond_stack);
6062 }
6065 # $COND
6066 # cond_stack_else ($NEGATE, $COND, $WHERE)
6067 # ----------------------------------------
6068 sub cond_stack_else ($$$)
6069 {
6070 my ($negate, $cond, $where) = @_;
6072 if (! @cond_stack)
6073 {
6074 error $where, "else without if";
6075 return FALSE;
6076 }
6078 $cond_stack[$#cond_stack] =
6079 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6081 # If $COND is given, check against it.
6082 if (defined $cond)
6083 {
6084 $cond = make_conditional_string ($negate, $cond);
6086 error ($where, "else reminder ($negate$cond) incompatible with "
6087 . "current conditional: $cond_stack[$#cond_stack]")
6088 if $cond_stack[$#cond_stack] ne $cond;
6089 }
6091 return new Automake::Condition (@cond_stack);
6092 }
6095 # $COND
6096 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6097 # -----------------------------------------
6098 sub cond_stack_endif ($$$)
6099 {
6100 my ($negate, $cond, $where) = @_;
6101 my $old_cond;
6103 if (! @cond_stack)
6104 {
6105 error $where, "endif without if";
6106 return TRUE;
6107 }
6109 # If $COND is given, check against it.
6110 if (defined $cond)
6111 {
6112 $cond = make_conditional_string ($negate, $cond);
6114 error ($where, "endif reminder ($negate$cond) incompatible with "
6115 . "current conditional: $cond_stack[$#cond_stack]")
6116 if $cond_stack[$#cond_stack] ne $cond;
6117 }
6119 pop @cond_stack;
6121 return new Automake::Condition (@cond_stack);
6122 }
6128 ## ------------------------ ##
6129 ## Handling the variables. ##
6130 ## ------------------------ ##
6133 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6134 # -----------------------------------------------------
6135 # Like define_variable, but the value is a list, and the variable may
6136 # be defined conditionally. The second argument is the condition
6137 # under which the value should be defined; this should be the empty
6138 # string to define the variable unconditionally. The third argument
6139 # is a list holding the values to use for the variable. The value is
6140 # pretty printed in the output file.
6141 sub define_pretty_variable ($$$@)
6142 {
6143 my ($var, $cond, $where, @value) = @_;
6145 if (! vardef ($var, $cond))
6146 {
6147 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6148 '', $where, VAR_PRETTY);
6149 rvar ($var)->rdef ($cond)->set_seen;
6150 }
6151 }
6154 # define_variable ($VAR, $VALUE, $WHERE)
6155 # --------------------------------------
6156 # Define a new Automake Makefile variable VAR to VALUE, but only if
6157 # not already defined.
6158 sub define_variable ($$$)
6159 {
6160 my ($var, $value, $where) = @_;
6161 define_pretty_variable ($var, TRUE, $where, $value);
6162 }
6165 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6166 # ------------------------------------------------------------
6167 # Define the $VAR which content is the list of file names composed of
6168 # a @BASENAME and the $EXTENSION.
6169 sub define_files_variable ($\@$$)
6170 {
6171 my ($var, $basename, $extension, $where) = @_;
6172 define_variable ($var,
6173 join (' ', map { "$_.$extension" } @$basename),
6174 $where);
6175 }
6178 # Like define_variable, but define a variable to be the configure
6179 # substitution by the same name.
6180 sub define_configure_variable ($)
6181 {
6182 my ($var) = @_;
6183 # Some variables we do not want to output. For instance it
6184 # would be a bad idea to output `U = @U@` when `@U@` can be
6185 # substituted as `\`.
6186 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6187 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6188 '', $configure_vars{$var}, $pretty);
6189 }
6192 # define_compiler_variable ($LANG)
6193 # --------------------------------
6194 # Define a compiler variable. We also handle defining the 'LT'
6195 # version of the command when using libtool.
6196 sub define_compiler_variable ($)
6197 {
6198 my ($lang) = @_;
6200 my ($var, $value) = ($lang->compiler, $lang->compile);
6201 my $libtool_tag = '';
6202 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6203 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6204 &define_variable ($var, $value, INTERNAL);
6205 if (var ('LIBTOOL'))
6206 {
6207 my $verbose = define_verbose_libtool ();
6208 &define_variable ("LT$var",
6209 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6210 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6211 INTERNAL);
6212 }
6213 define_verbose_tagvar ($lang->ccer || 'GEN');
6214 }
6217 # define_linker_variable ($LANG)
6218 # ------------------------------
6219 # Define linker variables.
6220 sub define_linker_variable ($)
6221 {
6222 my ($lang) = @_;
6224 my $libtool_tag = '';
6225 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6226 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6227 # CCLD = $(CC).
6228 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6229 # CCLINK = $(CCLD) blah blah...
6230 my $link = '';
6231 if (var ('LIBTOOL'))
6232 {
6233 my $verbose = define_verbose_libtool ();
6234 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6235 . "\$(LIBTOOLFLAGS) --mode=link ";
6236 }
6237 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6238 &define_variable ($lang->compiler, $lang);
6239 &define_verbose_tagvar ($lang->lder || 'GEN');
6240 }
6242 sub define_per_target_linker_variable ($$)
6243 {
6244 my ($linker, $target) = @_;
6246 # If the user wrote a custom link command, we don't define ours.
6247 return "${target}_LINK"
6248 if set_seen "${target}_LINK";
6250 my $xlink = $linker ? $linker : 'LINK';
6252 my $lang = $link_languages{$xlink};
6253 prog_error "Unknown language for linker variable '$xlink'"
6254 unless $lang;
6256 my $link_command = $lang->link;
6257 if (var 'LIBTOOL')
6258 {
6259 my $libtool_tag = '';
6260 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6261 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6263 my $verbose = define_verbose_libtool ();
6264 $link_command =
6265 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6266 . "--mode=link " . $link_command;
6267 }
6269 # Rewrite each occurrence of 'AM_$flag' in the link
6270 # command into '${derived}_$flag' if it exists.
6271 my $orig_command = $link_command;
6272 my @flags = (@{$lang->flags}, 'LDFLAGS');
6273 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6274 for my $flag (@flags)
6275 {
6276 my $val = "${target}_$flag";
6277 $link_command =~ s/\(AM_$flag\)/\($val\)/
6278 if set_seen ($val);
6279 }
6281 # If the computed command is the same as the generic command, use
6282 # the command linker variable.
6283 return ($lang->linker, $lang->lder)
6284 if $link_command eq $orig_command;
6286 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6287 return ("${target}_LINK", $lang->lder);
6288 }
6290 ################################################################
6292 # &check_trailing_slash ($WHERE, $LINE)
6293 # -------------------------------------
6294 # Return 1 iff $LINE ends with a slash.
6295 # Might modify $LINE.
6296 sub check_trailing_slash ($\$)
6297 {
6298 my ($where, $line) = @_;
6300 # Ignore '##' lines.
6301 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6303 # Catch and fix a common error.
6304 msg "syntax", $where, "whitespace following trailing backslash"
6305 if $$line =~ s/\\\s+\n$/\\\n/;
6307 return $$line =~ /\\$/;
6308 }
6311 # &read_am_file ($AMFILE, $WHERE)
6312 # -------------------------------
6313 # Read Makefile.am and set up %contents. Simultaneously copy lines
6314 # from Makefile.am into $output_trailer, or define variables as
6315 # appropriate. NOTE we put rules in the trailer section. We want
6316 # user rules to come after our generated stuff.
6317 sub read_am_file ($$)
6318 {
6319 my ($amfile, $where) = @_;
6321 my $am_file = new Automake::XFile ("< $amfile");
6322 verb "reading $amfile";
6324 # Keep track of the youngest output dependency.
6325 my $mtime = mtime $amfile;
6326 $output_deps_greatest_timestamp = $mtime
6327 if $mtime > $output_deps_greatest_timestamp;
6329 my $spacing = '';
6330 my $comment = '';
6331 my $blank = 0;
6332 my $saw_bk = 0;
6333 my $var_look = VAR_ASIS;
6335 use constant IN_VAR_DEF => 0;
6336 use constant IN_RULE_DEF => 1;
6337 use constant IN_COMMENT => 2;
6338 my $prev_state = IN_RULE_DEF;
6340 while ($_ = $am_file->getline)
6341 {
6342 $where->set ("$amfile:$.");
6343 if (/$IGNORE_PATTERN/o)
6344 {
6345 # Merely delete comments beginning with two hashes.
6346 }
6347 elsif (/$WHITE_PATTERN/o)
6348 {
6349 error $where, "blank line following trailing backslash"
6350 if $saw_bk;
6351 # Stick a single white line before the incoming macro or rule.
6352 $spacing = "\n";
6353 $blank = 1;
6354 # Flush all comments seen so far.
6355 if ($comment ne '')
6356 {
6357 $output_vars .= $comment;
6358 $comment = '';
6359 }
6360 }
6361 elsif (/$COMMENT_PATTERN/o)
6362 {
6363 # Stick comments before the incoming macro or rule. Make
6364 # sure a blank line precedes the first block of comments.
6365 $spacing = "\n" unless $blank;
6366 $blank = 1;
6367 $comment .= $spacing . $_;
6368 $spacing = '';
6369 $prev_state = IN_COMMENT;
6370 }
6371 else
6372 {
6373 last;
6374 }
6375 $saw_bk = check_trailing_slash ($where, $_);
6376 }
6378 # We save the conditional stack on entry, and then check to make
6379 # sure it is the same on exit. This lets us conditionally include
6380 # other files.
6381 my @saved_cond_stack = @cond_stack;
6382 my $cond = new Automake::Condition (@cond_stack);
6384 my $last_var_name = '';
6385 my $last_var_type = '';
6386 my $last_var_value = '';
6387 my $last_where;
6388 # FIXME: shouldn't use $_ in this loop; it is too big.
6389 while ($_)
6390 {
6391 $where->set ("$amfile:$.");
6393 # Make sure the line is \n-terminated.
6394 chomp;
6395 $_ .= "\n";
6397 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6398 # used by users. @MAINT@ is an anachronism now.
6399 $_ =~ s/\@MAINT\@//g
6400 unless $seen_maint_mode;
6402 my $new_saw_bk = check_trailing_slash ($where, $_);
6404 if (/$IGNORE_PATTERN/o)
6405 {
6406 # Merely delete comments beginning with two hashes.
6408 # Keep any backslash from the previous line.
6409 $new_saw_bk = $saw_bk;
6410 }
6411 elsif (/$WHITE_PATTERN/o)
6412 {
6413 # Stick a single white line before the incoming macro or rule.
6414 $spacing = "\n";
6415 error $where, "blank line following trailing backslash"
6416 if $saw_bk;
6417 }
6418 elsif (/$COMMENT_PATTERN/o)
6419 {
6420 error $where, "comment following trailing backslash"
6421 if $saw_bk && $prev_state != IN_COMMENT;
6423 # Stick comments before the incoming macro or rule.
6424 $comment .= $spacing . $_;
6425 $spacing = '';
6426 $prev_state = IN_COMMENT;
6427 }
6428 elsif ($saw_bk)
6429 {
6430 if ($prev_state == IN_RULE_DEF)
6431 {
6432 my $cond = new Automake::Condition @cond_stack;
6433 $output_trailer .= $cond->subst_string;
6434 $output_trailer .= $_;
6435 }
6436 elsif ($prev_state == IN_COMMENT)
6437 {
6438 # If the line doesn't start with a '#', add it.
6439 # We do this because a continued comment like
6440 # # A = foo \
6441 # bar \
6442 # baz
6443 # is not portable. BSD make doesn't honor
6444 # escaped newlines in comments.
6445 s/^#?/#/;
6446 $comment .= $spacing . $_;
6447 }
6448 else # $prev_state == IN_VAR_DEF
6449 {
6450 $last_var_value .= ' '
6451 unless $last_var_value =~ /\s$/;
6452 $last_var_value .= $_;
6454 if (!/\\$/)
6455 {
6456 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6457 $last_var_type, $cond,
6458 $last_var_value, $comment,
6459 $last_where, VAR_ASIS)
6460 if $cond != FALSE;
6461 $comment = $spacing = '';
6462 }
6463 }
6464 }
6466 elsif (/$IF_PATTERN/o)
6467 {
6468 $cond = cond_stack_if ($1, $2, $where);
6469 }
6470 elsif (/$ELSE_PATTERN/o)
6471 {
6472 $cond = cond_stack_else ($1, $2, $where);
6473 }
6474 elsif (/$ENDIF_PATTERN/o)
6475 {
6476 $cond = cond_stack_endif ($1, $2, $where);
6477 }
6479 elsif (/$RULE_PATTERN/o)
6480 {
6481 # Found a rule.
6482 $prev_state = IN_RULE_DEF;
6484 # For now we have to output all definitions of user rules
6485 # and can't diagnose duplicates (see the comment in
6486 # Automake::Rule::define). So we go on and ignore the return value.
6487 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6489 check_variable_expansions ($_, $where);
6491 $output_trailer .= $comment . $spacing;
6492 my $cond = new Automake::Condition @cond_stack;
6493 $output_trailer .= $cond->subst_string;
6494 $output_trailer .= $_;
6495 $comment = $spacing = '';
6496 }
6497 elsif (/$ASSIGNMENT_PATTERN/o)
6498 {
6499 # Found a macro definition.
6500 $prev_state = IN_VAR_DEF;
6501 $last_var_name = $1;
6502 $last_var_type = $2;
6503 $last_var_value = $3;
6504 $last_where = $where->clone;
6505 if ($3 ne '' && substr ($3, -1) eq "\\")
6506 {
6507 # We preserve the '\' because otherwise the long lines
6508 # that are generated will be truncated by broken
6509 # 'sed's.
6510 $last_var_value = $3 . "\n";
6511 }
6512 # Normally we try to output variable definitions in the
6513 # same format they were input. However, POSIX compliant
6514 # systems are not required to support lines longer than
6515 # 2048 bytes (most notably, some sed implementation are
6516 # limited to 4000 bytes, and sed is used by config.status
6517 # to rewrite Makefile.in into Makefile). Moreover nobody
6518 # would really write such long lines by hand since it is
6519 # hardly maintainable. So if a line is longer that 1000
6520 # bytes (an arbitrary limit), assume it has been
6521 # automatically generated by some tools, and flatten the
6522 # variable definition. Otherwise, keep the variable as it
6523 # as been input.
6524 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6526 if (!/\\$/)
6527 {
6528 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6529 $last_var_type, $cond,
6530 $last_var_value, $comment,
6531 $last_where, $var_look)
6532 if $cond != FALSE;
6533 $comment = $spacing = '';
6534 $var_look = VAR_ASIS;
6535 }
6536 }
6537 elsif (/$INCLUDE_PATTERN/o)
6538 {
6539 my $path = $1;
6541 if ($path =~ s/^\$\(top_srcdir\)\///)
6542 {
6543 push (@include_stack, "\$\(top_srcdir\)/$path");
6544 # Distribute any included file.
6546 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6547 # otherwise OSF make will implicitly copy the included
6548 # file in the build tree during "make distdir" to satisfy
6549 # the dependency.
6550 # (subdircond2.test and subdircond3.test will fail.)
6551 push_dist_common ("\$\(top_srcdir\)/$path");
6552 }
6553 else
6554 {
6555 $path =~ s/\$\(srcdir\)\///;
6556 push (@include_stack, "\$\(srcdir\)/$path");
6557 # Always use the $(srcdir) prefix in DIST_COMMON,
6558 # otherwise OSF make will implicitly copy the included
6559 # file in the build tree during "make distdir" to satisfy
6560 # the dependency.
6561 # (subdircond2.test and subdircond3.test will fail.)
6562 push_dist_common ("\$\(srcdir\)/$path");
6563 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6564 }
6565 $where->push_context ("'$path' included from here");
6566 &read_am_file ($path, $where);
6567 $where->pop_context;
6568 }
6569 else
6570 {
6571 # This isn't an error; it is probably a continued rule.
6572 # In fact, this is what we assume.
6573 $prev_state = IN_RULE_DEF;
6574 check_variable_expansions ($_, $where);
6575 $output_trailer .= $comment . $spacing;
6576 my $cond = new Automake::Condition @cond_stack;
6577 $output_trailer .= $cond->subst_string;
6578 $output_trailer .= $_;
6579 $comment = $spacing = '';
6580 error $where, "'#' comment at start of rule is unportable"
6581 if $_ =~ /^\t\s*\#/;
6582 }
6584 $saw_bk = $new_saw_bk;
6585 $_ = $am_file->getline;
6586 }
6588 $output_trailer .= $comment;
6590 error ($where, "trailing backslash on last line")
6591 if $saw_bk;
6593 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6594 : "too many conditionals closed in include file"))
6595 if "@saved_cond_stack" ne "@cond_stack";
6596 }
6599 # define_standard_variables ()
6600 # ----------------------------
6601 # A helper for read_main_am_file which initializes configure variables
6602 # and variables from header-vars.am.
6603 sub define_standard_variables
6604 {
6605 my $saved_output_vars = $output_vars;
6606 my ($comments, undef, $rules) =
6607 file_contents_internal (1, "$libdir/am/header-vars.am",
6608 new Automake::Location);
6610 foreach my $var (sort keys %configure_vars)
6611 {
6612 &define_configure_variable ($var);
6613 }
6615 $output_vars .= $comments . $rules;
6616 }
6618 # Read main am file.
6619 sub read_main_am_file ($$)
6620 {
6621 my ($amfile, $infile) = @_;
6623 # This supports the strange variable tricks we are about to play.
6624 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6625 if (scalar (variables) > 0);
6627 # Generate copyright header for generated Makefile.in.
6628 # We do discard the output of predefined variables, handled below.
6629 $output_vars = ("# " . basename ($infile) . " generated by automake "
6630 . $VERSION . " from " . basename ($amfile) . ".\n");
6631 $output_vars .= '# ' . subst ('configure_input') . "\n";
6632 $output_vars .= $gen_copyright;
6634 # We want to predefine as many variables as possible. This lets
6635 # the user set them with '+=' in Makefile.am.
6636 &define_standard_variables;
6638 # Read user file, which might override some of our values.
6639 &read_am_file ($amfile, new Automake::Location);
6640 }
6644 ################################################################
6646 # $FLATTENED
6647 # &flatten ($STRING)
6648 # ------------------
6649 # Flatten the $STRING and return the result.
6650 sub flatten
6651 {
6652 $_ = shift;
6654 s/\\\n//somg;
6655 s/\s+/ /g;
6656 s/^ //;
6657 s/ $//;
6659 return $_;
6660 }
6663 # transform_token ($TOKEN, \%PAIRS, $KEY)
6664 # =======================================
6665 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6666 # (which should be ?KEY? or any of the special %% requests)..
6667 sub transform_token ($$$)
6668 {
6669 my ($token, $transform, $key) = @_;
6670 my $res = $transform->{$key};
6671 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6672 return $res;
6673 }
6676 # transform ($TOKEN, \%PAIRS)
6677 # ===========================
6678 # If ($TOKEN, $VAL) is in %PAIRS:
6679 # - replaces %KEY% with $VAL,
6680 # - enables/disables ?KEY? and ?!KEY?,
6681 # - replaces %?KEY% with TRUE or FALSE.
6682 sub transform ($$)
6683 {
6684 my ($token, $transform) = @_;
6686 # %KEY%.
6687 # Must be before the following pattern to exclude the case
6688 # when there is neither IFTRUE nor IFFALSE.
6689 if ($token =~ /^%([\w\-]+)%$/)
6690 {
6691 return transform_token ($token, $transform, $1);
6692 }
6693 # %?KEY%.
6694 elsif ($token =~ /^%\?([\w\-]+)%$/)
6695 {
6696 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6697 }
6698 # ?KEY? and ?!KEY?.
6699 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6700 {
6701 my $neg = ($1 eq '!') ? 1 : 0;
6702 my $val = transform_token ($token, $transform, $2);
6703 return (!!$val == $neg) ? '##%' : '';
6704 }
6705 else
6706 {
6707 prog_error "Unknown request format: $token";
6708 }
6709 }
6711 # $TEXT
6712 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6713 # -----------------------------------------
6714 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6715 # No extra parsing or post-processing is done (i.e., recognition of
6716 # rules declaration or of make variables definitions).
6717 sub preprocess_file ($%)
6718 {
6719 my ($file, %transform) = @_;
6721 # Complete %transform with global options.
6722 # Note that %transform goes last, so it overrides global options.
6723 %transform = ( 'MAINTAINER-MODE'
6724 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6726 'XZ' => !! option 'dist-xz',
6727 'LZIP' => !! option 'dist-lzip',
6728 'BZIP2' => !! option 'dist-bzip2',
6729 'COMPRESS' => !! option 'dist-tarZ',
6730 'GZIP' => ! option 'no-dist-gzip',
6731 'SHAR' => !! option 'dist-shar',
6732 'ZIP' => !! option 'dist-zip',
6734 'INSTALL-INFO' => ! option 'no-installinfo',
6735 'INSTALL-MAN' => ! option 'no-installman',
6736 'CK-NEWS' => !! option 'check-news',
6738 'SUBDIRS' => !! var ('SUBDIRS'),
6739 'TOPDIR_P' => $relative_dir eq '.',
6741 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6742 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6743 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6745 'LIBTOOL' => !! var ('LIBTOOL'),
6746 'NONLIBTOOL' => 1,
6747 %transform);
6749 if (! defined ($_ = $am_file_cache{$file}))
6750 {
6751 verb "reading $file";
6752 # Swallow the whole file.
6753 my $fc_file = new Automake::XFile "< $file";
6754 my $saved_dollar_slash = $/;
6755 undef $/;
6756 $_ = $fc_file->getline;
6757 $/ = $saved_dollar_slash;
6758 $fc_file->close;
6759 # Remove ##-comments.
6760 # Besides we don't need more than two consecutive new-lines.
6761 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6762 # Remember the contents of the just-read file.
6763 $am_file_cache{$file} = $_;
6764 }
6766 # Substitute Automake template tokens.
6767 s/(?: % \?? [\w\-]+ %
6768 | \? !? [\w\-]+ \?
6769 )/transform($&, \%transform)/gex;
6770 # transform() may have added some ##%-comments to strip.
6771 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6772 # ####### and do not remove the latter.)
6773 s/^[ \t]*(?:##%)+.*\n//gm;
6775 return $_;
6776 }
6779 # @PARAGRAPHS
6780 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6781 # ------------------------------------------
6782 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6783 # paragraphs.
6784 sub make_paragraphs ($%)
6785 {
6786 my ($file, %transform) = @_;
6787 $transform{FIRST} = !$transformed_files{$file};
6788 $transformed_files{$file} = 1;
6790 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6791 my @res;
6793 while (defined ($_ = shift @lines))
6794 {
6795 my $paragraph = $_;
6796 # If we are a rule, eat as long as we start with a tab.
6797 if (/$RULE_PATTERN/smo)
6798 {
6799 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6800 {
6801 $paragraph .= "\n$_";
6802 }
6803 unshift (@lines, $_);
6804 }
6806 # If we are a comments, eat as much comments as you can.
6807 elsif (/$COMMENT_PATTERN/smo)
6808 {
6809 while (defined ($_ = shift @lines)
6810 && $_ =~ /$COMMENT_PATTERN/smo)
6811 {
6812 $paragraph .= "\n$_";
6813 }
6814 unshift (@lines, $_);
6815 }
6817 push @res, $paragraph;
6818 }
6820 return @res;
6821 }
6825 # ($COMMENT, $VARIABLES, $RULES)
6826 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6827 # -------------------------------------------------------------
6828 # Return contents of a file from $libdir/am, automatically skipping
6829 # macros or rules which are already known. $IS_AM iff the caller is
6830 # reading an Automake file (as opposed to the user's Makefile.am).
6831 sub file_contents_internal ($$$%)
6832 {
6833 my ($is_am, $file, $where, %transform) = @_;
6835 $where->set ($file);
6837 my $result_vars = '';
6838 my $result_rules = '';
6839 my $comment = '';
6840 my $spacing = '';
6842 # The following flags are used to track rules spanning across
6843 # multiple paragraphs.
6844 my $is_rule = 0; # 1 if we are processing a rule.
6845 my $discard_rule = 0; # 1 if the current rule should not be output.
6847 # We save the conditional stack on entry, and then check to make
6848 # sure it is the same on exit. This lets us conditionally include
6849 # other files.
6850 my @saved_cond_stack = @cond_stack;
6851 my $cond = new Automake::Condition (@cond_stack);
6853 foreach (make_paragraphs ($file, %transform))
6854 {
6855 # FIXME: no line number available.
6856 $where->set ($file);
6858 # Sanity checks.
6859 error $where, "blank line following trailing backslash:\n$_"
6860 if /\\$/;
6861 error $where, "comment following trailing backslash:\n$_"
6862 if /\\#/;
6864 if (/^$/)
6865 {
6866 $is_rule = 0;
6867 # Stick empty line before the incoming macro or rule.
6868 $spacing = "\n";
6869 }
6870 elsif (/$COMMENT_PATTERN/mso)
6871 {
6872 $is_rule = 0;
6873 # Stick comments before the incoming macro or rule.
6874 $comment = "$_\n";
6875 }
6877 # Handle inclusion of other files.
6878 elsif (/$INCLUDE_PATTERN/o)
6879 {
6880 if ($cond != FALSE)
6881 {
6882 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6883 $where->push_context ("'$file' included from here");
6884 # N-ary '.=' fails.
6885 my ($com, $vars, $rules)
6886 = file_contents_internal ($is_am, $file, $where, %transform);
6887 $where->pop_context;
6888 $comment .= $com;
6889 $result_vars .= $vars;
6890 $result_rules .= $rules;
6891 }
6892 }
6894 # Handling the conditionals.
6895 elsif (/$IF_PATTERN/o)
6896 {
6897 $cond = cond_stack_if ($1, $2, $file);
6898 }
6899 elsif (/$ELSE_PATTERN/o)
6900 {
6901 $cond = cond_stack_else ($1, $2, $file);
6902 }
6903 elsif (/$ENDIF_PATTERN/o)
6904 {
6905 $cond = cond_stack_endif ($1, $2, $file);
6906 }
6908 # Handling rules.
6909 elsif (/$RULE_PATTERN/mso)
6910 {
6911 $is_rule = 1;
6912 $discard_rule = 0;
6913 # Separate relationship from optional actions: the first
6914 # `new-line tab" not preceded by backslash (continuation
6915 # line).
6916 my $paragraph = $_;
6917 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6918 my ($relationship, $actions) = ($1, $2 || '');
6920 # Separate targets from dependencies: the first colon.
6921 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6922 my ($targets, $dependencies) = ($1, $2);
6923 # Remove the escaped new lines.
6924 # I don't know why, but I have to use a tmp $flat_deps.
6925 my $flat_deps = &flatten ($dependencies);
6926 my @deps = split (' ', $flat_deps);
6928 foreach (split (' ', $targets))
6929 {
6930 # FIXME: 1. We are not robust to people defining several targets
6931 # at once, only some of them being in %dependencies. The
6932 # actions from the targets in %dependencies are usually generated
6933 # from the content of %actions, but if some targets in $targets
6934 # are not in %dependencies the ELSE branch will output
6935 # a rule for all $targets (i.e. the targets which are both
6936 # in %dependencies and $targets will have two rules).
6938 # FIXME: 2. The logic here is not able to output a
6939 # multi-paragraph rule several time (e.g. for each condition
6940 # it is defined for) because it only knows the first paragraph.
6942 # FIXME: 3. We are not robust to people defining a subset
6943 # of a previously defined "multiple-target" rule. E.g.
6944 # 'foo:' after 'foo bar:'.
6946 # Output only if not in FALSE.
6947 if (defined $dependencies{$_} && $cond != FALSE)
6948 {
6949 &depend ($_, @deps);
6950 register_action ($_, $actions);
6951 }
6952 else
6953 {
6954 # Free-lance dependency. Output the rule for all the
6955 # targets instead of one by one.
6956 my @undefined_conds =
6957 Automake::Rule::define ($targets, $file,
6958 $is_am ? RULE_AUTOMAKE : RULE_USER,
6959 $cond, $where);
6960 for my $undefined_cond (@undefined_conds)
6961 {
6962 my $condparagraph = $paragraph;
6963 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6964 $result_rules .= "$spacing$comment$condparagraph\n";
6965 }
6966 if (scalar @undefined_conds == 0)
6967 {
6968 # Remember to discard next paragraphs
6969 # if they belong to this rule.
6970 # (but see also FIXME: #2 above.)
6971 $discard_rule = 1;
6972 }
6973 $comment = $spacing = '';
6974 last;
6975 }
6976 }
6977 }
6979 elsif (/$ASSIGNMENT_PATTERN/mso)
6980 {
6981 my ($var, $type, $val) = ($1, $2, $3);
6982 error $where, "variable '$var' with trailing backslash"
6983 if /\\$/;
6985 $is_rule = 0;
6987 Automake::Variable::define ($var,
6988 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6989 $type, $cond, $val, $comment, $where,
6990 VAR_ASIS)
6991 if $cond != FALSE;
6993 $comment = $spacing = '';
6994 }
6995 else
6996 {
6997 # This isn't an error; it is probably some tokens which
6998 # configure is supposed to replace, such as '@SET-MAKE@',
6999 # or some part of a rule cut by an if/endif.
7000 if (! $cond->false && ! ($is_rule && $discard_rule))
7001 {
7002 s/^/$cond->subst_string/gme;
7003 $result_rules .= "$spacing$comment$_\n";
7004 }
7005 $comment = $spacing = '';
7006 }
7007 }
7009 error ($where, @cond_stack ?
7010 "unterminated conditionals: @cond_stack" :
7011 "too many conditionals closed in include file")
7012 if "@saved_cond_stack" ne "@cond_stack";
7014 return ($comment, $result_vars, $result_rules);
7015 }
7018 # $CONTENTS
7019 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7020 # ------------------------------------------------
7021 # Return contents of a file from $libdir/am, automatically skipping
7022 # macros or rules which are already known.
7023 sub file_contents ($$%)
7024 {
7025 my ($basename, $where, %transform) = @_;
7026 my ($comments, $variables, $rules) =
7027 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7028 %transform);
7029 return "$comments$variables$rules";
7030 }
7033 # @PREFIX
7034 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7035 # -----------------------------------------------------
7036 # Find all variable prefixes that are used for install directories. A
7037 # prefix 'zar' qualifies iff:
7038 #
7039 # * 'zardir' is a variable.
7040 # * 'zar_PRIMARY' is a variable.
7041 #
7042 # As a side effect, it looks for misspellings. It is an error to have
7043 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7044 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7045 # of the same name (with "dir" appended) exists. For instance, if the
7046 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7047 # This is to provide a little extra flexibility in those cases which
7048 # need it.
7049 sub am_primary_prefixes ($$@)
7050 {
7051 my ($primary, $can_dist, @prefixes) = @_;
7053 local $_;
7054 my %valid = map { $_ => 0 } @prefixes;
7055 $valid{'EXTRA'} = 0;
7056 foreach my $var (variables $primary)
7057 {
7058 # Automake is allowed to define variables that look like primaries
7059 # but which aren't. E.g. INSTALL_sh_DATA.
7060 # Autoconf can also define variables like INSTALL_DATA, so
7061 # ignore all configure variables (at least those which are not
7062 # redefined in Makefile.am).
7063 # FIXME: We should make sure that these variables are not
7064 # conditionally defined (or else adjust the condition below).
7065 my $def = $var->def (TRUE);
7066 next if $def && $def->owner != VAR_MAKEFILE;
7068 my $varname = $var->name;
7070 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7071 {
7072 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7073 if ($dist ne '' && ! $can_dist)
7074 {
7075 err_var ($var,
7076 "invalid variable '$varname': 'dist' is forbidden");
7077 }
7078 # Standard directories must be explicitly allowed.
7079 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7080 {
7081 err_var ($var,
7082 "'${X}dir' is not a legitimate directory " .
7083 "for '$primary'");
7084 }
7085 # A not explicitly valid directory is allowed if Xdir is defined.
7086 elsif (! defined $valid{$X} &&
7087 $var->requires_variables ("'$varname' is used", "${X}dir"))
7088 {
7089 # Nothing to do. Any error message has been output
7090 # by $var->requires_variables.
7091 }
7092 else
7093 {
7094 # Ensure all extended prefixes are actually used.
7095 $valid{"$base$dist$X"} = 1;
7096 }
7097 }
7098 else
7099 {
7100 prog_error "unexpected variable name: $varname";
7101 }
7102 }
7104 # Return only those which are actually defined.
7105 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7106 }
7109 # Handle 'where_HOW' variable magic. Does all lookups, generates
7110 # install code, and possibly generates code to define the primary
7111 # variable. The first argument is the name of the .am file to munge,
7112 # the second argument is the primary variable (e.g. HEADERS), and all
7113 # subsequent arguments are possible installation locations.
7114 #
7115 # Returns list of [$location, $value] pairs, where
7116 # $value's are the values in all where_HOW variable, and $location
7117 # there associated location (the place here their parent variables were
7118 # defined).
7119 #
7120 # FIXME: this should be rewritten to be cleaner. It should be broken
7121 # up into multiple functions.
7122 #
7123 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7124 sub am_install_var
7125 {
7126 my (@args) = @_;
7128 my $do_require = 1;
7129 my $can_dist = 0;
7130 my $default_dist = 0;
7131 while (@args)
7132 {
7133 if ($args[0] eq '-noextra')
7134 {
7135 $do_require = 0;
7136 }
7137 elsif ($args[0] eq '-candist')
7138 {
7139 $can_dist = 1;
7140 }
7141 elsif ($args[0] eq '-defaultdist')
7142 {
7143 $default_dist = 1;
7144 $can_dist = 1;
7145 }
7146 elsif ($args[0] !~ /^-/)
7147 {
7148 last;
7149 }
7150 shift (@args);
7151 }
7153 my ($file, $primary, @prefix) = @args;
7155 # Now that configure substitutions are allowed in where_HOW
7156 # variables, it is an error to actually define the primary. We
7157 # allow 'JAVA', as it is customarily used to mean the Java
7158 # interpreter. This is but one of several Java hacks. Similarly,
7159 # 'PYTHON' is customarily used to mean the Python interpreter.
7160 reject_var $primary, "'$primary' is an anachronism"
7161 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7163 # Get the prefixes which are valid and actually used.
7164 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7166 # If a primary includes a configure substitution, then the EXTRA_
7167 # form is required. Otherwise we can't properly do our job.
7168 my $require_extra;
7170 my @used = ();
7171 my @result = ();
7173 foreach my $X (@prefix)
7174 {
7175 my $nodir_name = $X;
7176 my $one_name = $X . '_' . $primary;
7177 my $one_var = var $one_name;
7179 my $strip_subdir = 1;
7180 # If subdir prefix should be preserved, do so.
7181 if ($nodir_name =~ /^nobase_/)
7182 {
7183 $strip_subdir = 0;
7184 $nodir_name =~ s/^nobase_//;
7185 }
7187 # If files should be distributed, do so.
7188 my $dist_p = 0;
7189 if ($can_dist)
7190 {
7191 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7192 || (! $default_dist && $nodir_name =~ /^dist_/));
7193 $nodir_name =~ s/^(dist|nodist)_//;
7194 }
7197 # Use the location of the currently processed variable.
7198 # We are not processing a particular condition, so pick the first
7199 # available.
7200 my $tmpcond = $one_var->conditions->one_cond;
7201 my $where = $one_var->rdef ($tmpcond)->location->clone;
7203 # Append actual contents of where_PRIMARY variable to
7204 # @result, skipping @substitutions@.
7205 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7206 {
7207 my ($loc, $value) = @$locvals;
7208 # Skip configure substitutions.
7209 if ($value =~ /^\@.*\@$/)
7210 {
7211 if ($nodir_name eq 'EXTRA')
7212 {
7213 error ($where,
7214 "'$one_name' contains configure substitution, "
7215 . "but shouldn't");
7216 }
7217 # Check here to make sure variables defined in
7218 # configure.ac do not imply that EXTRA_PRIMARY
7219 # must be defined.
7220 elsif (! defined $configure_vars{$one_name})
7221 {
7222 $require_extra = $one_name
7223 if $do_require;
7224 }
7225 }
7226 else
7227 {
7228 # Strip any $(EXEEXT) suffix the user might have added, or this
7229 # will confuse &handle_source_transform and &check_canonical_spelling.
7230 # We'll add $(EXEEXT) back later anyway.
7231 # Do it here rather than in handle_programs so the uniquifying at the
7232 # end of this function works.
7233 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7234 if $primary eq 'PROGRAMS';
7236 push (@result, $locvals);
7237 }
7238 }
7239 # A blatant hack: we rewrite each _PROGRAMS primary to include
7240 # EXEEXT.
7241 append_exeext { 1 } $one_name
7242 if $primary eq 'PROGRAMS';
7243 # "EXTRA" shouldn't be used when generating clean targets,
7244 # all, or install targets. We used to warn if EXTRA_FOO was
7245 # defined uselessly, but this was annoying.
7246 next
7247 if $nodir_name eq 'EXTRA';
7249 if ($nodir_name eq 'check')
7250 {
7251 push (@check, '$(' . $one_name . ')');
7252 }
7253 else
7254 {
7255 push (@used, '$(' . $one_name . ')');
7256 }
7258 # Is this to be installed?
7259 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7261 # If so, with install-exec? (or install-data?).
7262 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7264 my $check_options_p = $install_p && !! option 'std-options';
7266 # Use the location of the currently processed variable as context.
7267 $where->push_context ("while processing '$one_name'");
7269 # The variable containing all files to distribute.
7270 my $distvar = "\$($one_name)";
7271 $distvar = shadow_unconditionally ($one_name, $where)
7272 if ($dist_p && $one_var->has_conditional_contents);
7274 # Singular form of $PRIMARY.
7275 (my $one_primary = $primary) =~ s/S$//;
7276 $output_rules .= &file_contents ($file, $where,
7277 PRIMARY => $primary,
7278 ONE_PRIMARY => $one_primary,
7279 DIR => $X,
7280 NDIR => $nodir_name,
7281 BASE => $strip_subdir,
7283 EXEC => $exec_p,
7284 INSTALL => $install_p,
7285 DIST => $dist_p,
7286 DISTVAR => $distvar,
7287 'CK-OPTS' => $check_options_p);
7288 }
7290 # The JAVA variable is used as the name of the Java interpreter.
7291 # The PYTHON variable is used as the name of the Python interpreter.
7292 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7293 {
7294 # Define it.
7295 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7296 $output_vars .= "\n";
7297 }
7299 err_var ($require_extra,
7300 "'$require_extra' contains configure substitution,\n"
7301 . "but 'EXTRA_$primary' not defined")
7302 if ($require_extra && ! var ('EXTRA_' . $primary));
7304 # Push here because PRIMARY might be configure time determined.
7305 push (@all, '$(' . $primary . ')')
7306 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7308 # Make the result unique. This lets the user use conditionals in
7309 # a natural way, but still lets us program lazily -- we don't have
7310 # to worry about handling a particular object more than once.
7311 # We will keep only one location per object.
7312 my %result = ();
7313 for my $pair (@result)
7314 {
7315 my ($loc, $val) = @$pair;
7316 $result{$val} = $loc;
7317 }
7318 my @l = sort keys %result;
7319 return map { [$result{$_}->clone, $_] } @l;
7320 }
7323 ################################################################
7325 # Each key in this hash is the name of a directory holding a
7326 # Makefile.in. These variables are local to 'is_make_dir'.
7327 my %make_dirs = ();
7328 my $make_dirs_set = 0;
7330 sub is_make_dir
7331 {
7332 my ($dir) = @_;
7333 if (! $make_dirs_set)
7334 {
7335 foreach my $iter (@configure_input_files)
7336 {
7337 $make_dirs{dirname ($iter)} = 1;
7338 }
7339 # We also want to notice Makefile.in's.
7340 foreach my $iter (@other_input_files)
7341 {
7342 if ($iter =~ /Makefile\.in$/)
7343 {
7344 $make_dirs{dirname ($iter)} = 1;
7345 }
7346 }
7347 $make_dirs_set = 1;
7348 }
7349 return defined $make_dirs{$dir};
7350 }
7352 ################################################################
7354 # Find the aux dir. This should match the algorithm used by
7355 # ./configure. (See the Autoconf documentation for for
7356 # AC_CONFIG_AUX_DIR.)
7357 sub locate_aux_dir ()
7358 {
7359 if (! $config_aux_dir_set_in_configure_ac)
7360 {
7361 # The default auxiliary directory is the first
7362 # of ., .., or ../.. that contains install-sh.
7363 # Assume . if install-sh doesn't exist yet.
7364 for my $dir (qw (. .. ../..))
7365 {
7366 if (-f "$dir/install-sh")
7367 {
7368 $config_aux_dir = $dir;
7369 last;
7370 }
7371 }
7372 $config_aux_dir = '.' unless $config_aux_dir;
7373 }
7374 # Avoid unsightly '/.'s.
7375 $am_config_aux_dir =
7376 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7377 $am_config_aux_dir =~ s,/*$,,;
7378 }
7381 # &push_required_file ($DIR, $FILE, $FULLFILE)
7382 # --------------------------------------------------
7383 # Push the given file onto DIST_COMMON.
7384 sub push_required_file
7385 {
7386 my ($dir, $file, $fullfile) = @_;
7388 # If the file to be distributed is in the same directory of the
7389 # currently processed Makefile.am, then we want to distribute it
7390 # from this same Makefile.am.
7391 if ($dir eq $relative_dir)
7392 {
7393 push_dist_common ($file);
7394 }
7395 # This is needed to allow a construct in a non-top-level Makefile.am
7396 # to require a file in the build-aux directory (see at least the test
7397 # script 'test-driver-is-distributed.test'). This is related to the
7398 # automake bug#9546. Note that the use of $config_aux_dir instead
7399 # of $am_config_aux_dir here is deliberate and necessary.
7400 elsif ($dir eq $config_aux_dir)
7401 {
7402 push_dist_common ("$am_config_aux_dir/$file");
7403 }
7404 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7405 # We probably need some refactoring of this function and its callers,
7406 # to have a more explicit and systematic handling of all the special
7407 # cases; but, since there are only two of them, this is low-priority
7408 # ATM.
7409 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7410 {
7411 # Avoid unsightly '/.'s.
7412 my $am_config_libobj_dir =
7413 '$(top_srcdir)' .
7414 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7415 $am_config_libobj_dir =~ s|/*$||;
7416 push_dist_common ("$am_config_libobj_dir/$file");
7417 }
7418 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7419 {
7420 # If we are doing the topmost directory, and the file is in a
7421 # subdir which does not have a Makefile, then we distribute it
7422 # here.
7424 # If a required file is above the source tree, it is important
7425 # to prefix it with '$(srcdir)' so that no VPATH search is
7426 # performed. Otherwise problems occur with Make implementations
7427 # that rewrite and simplify rules whose dependencies are found in a
7428 # VPATH location. Here is an example with OSF1/Tru64 Make.
7429 #
7430 # % cat Makefile
7431 # VPATH = sub
7432 # distdir: ../a
7433 # echo ../a
7434 # % ls
7435 # Makefile a
7436 # % make
7437 # echo a
7438 # a
7439 #
7440 # Dependency '../a' was found in 'sub/../a', but this make
7441 # implementation simplified it as 'a'. (Note that the sub/
7442 # directory does not even exist.)
7443 #
7444 # This kind of VPATH rewriting seems hard to cancel. The
7445 # distdir.am hack against VPATH rewriting works only when no
7446 # simplification is done, i.e., for dependencies which are in
7447 # subdirectories, not in enclosing directories. Hence, in
7448 # the latter case we use a full path to make sure no VPATH
7449 # search occurs.
7450 $fullfile = '$(srcdir)/' . $fullfile
7451 if $dir =~ m,^\.\.(?:$|/),;
7453 push_dist_common ($fullfile);
7454 }
7455 else
7456 {
7457 prog_error "a Makefile in relative directory $relative_dir " .
7458 "can't add files in directory $dir to DIST_COMMON";
7459 }
7460 }
7463 # If a file name appears as a key in this hash, then it has already
7464 # been checked for. This allows us not to report the same error more
7465 # than once.
7466 my %required_file_not_found = ();
7468 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7469 # --------------------------------------------------------
7470 # Verify that the file must exist in $DIRECTORY, or install it.
7471 sub required_file_check_or_copy ($$$)
7472 {
7473 my ($where, $dir, $file) = @_;
7475 my $fullfile = "$dir/$file";
7476 my $found_it = 0;
7477 my $dangling_sym = 0;
7479 if (-l $fullfile && ! -f $fullfile)
7480 {
7481 $dangling_sym = 1;
7482 }
7483 elsif (dir_has_case_matching_file ($dir, $file))
7484 {
7485 $found_it = 1;
7486 }
7488 # '--force-missing' only has an effect if '--add-missing' is
7489 # specified.
7490 return
7491 if $found_it && (! $add_missing || ! $force_missing);
7493 # If we've already looked for it, we're done. You might
7494 # wonder why we don't do this before searching for the
7495 # file. If we do that, then something like
7496 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7497 # DIST_COMMON.
7498 if (! $found_it)
7499 {
7500 return if defined $required_file_not_found{$fullfile};
7501 $required_file_not_found{$fullfile} = 1;
7502 }
7503 if ($dangling_sym && $add_missing)
7504 {
7505 unlink ($fullfile);
7506 }
7508 my $trailer = '';
7509 my $trailer2 = '';
7510 my $suppress = 0;
7512 # Only install missing files according to our desired
7513 # strictness level.
7514 my $message = "required file '$fullfile' not found";
7515 if ($add_missing)
7516 {
7517 if (-f "$libdir/$file")
7518 {
7519 $suppress = 1;
7521 # Install the missing file. Symlink if we
7522 # can, copy if we must. Note: delete the file
7523 # first, in case it is a dangling symlink.
7524 $message = "installing '$fullfile'";
7526 # The license file should not be volatile.
7527 if ($file eq "COPYING")
7528 {
7529 $message .= " using GNU General Public License v3 file";
7530 $trailer2 = "\n Consider adding the COPYING file"
7531 . " to the version control system"
7532 . "\n for your code, to avoid questions"
7533 . " about which license your project uses";
7534 }
7536 # Windows Perl will hang if we try to delete a
7537 # file that doesn't exist.
7538 unlink ($fullfile) if -f $fullfile;
7539 if ($symlink_exists && ! $copy_missing)
7540 {
7541 if (! symlink ("$libdir/$file", $fullfile)
7542 || ! -e $fullfile)
7543 {
7544 $suppress = 0;
7545 $trailer = "; error while making link: $!";
7546 }
7547 }
7548 elsif (system ('cp', "$libdir/$file", $fullfile))
7549 {
7550 $suppress = 0;
7551 $trailer = "\n error while copying";
7552 }
7553 set_dir_cache_file ($dir, $file);
7554 }
7555 }
7556 else
7557 {
7558 $trailer = "\n 'automake --add-missing' can install '$file'"
7559 if -f "$libdir/$file";
7560 }
7562 # If --force-missing was specified, and we have
7563 # actually found the file, then do nothing.
7564 return
7565 if $found_it && $force_missing;
7567 # If we couldn't install the file, but it is a target in
7568 # the Makefile, don't print anything. This allows files
7569 # like README, AUTHORS, or THANKS to be generated.
7570 return
7571 if !$suppress && rule $file;
7573 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7574 }
7577 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7578 # ----------------------------------------------------------------------
7579 # Verify that the file must exist in $DIRECTORY, or install it.
7580 # $MYSTRICT is the strictness level at which this file becomes required.
7581 # Worker threads may queue up the action to be serialized by the master,
7582 # if $QUEUE is true
7583 sub require_file_internal ($$$@)
7584 {
7585 my ($where, $mystrict, $dir, $queue, @files) = @_;
7587 return
7588 unless $strictness >= $mystrict;
7590 foreach my $file (@files)
7591 {
7592 push_required_file ($dir, $file, "$dir/$file");
7593 if ($queue)
7594 {
7595 queue_required_file_check_or_copy ($required_conf_file_queue,
7596 QUEUE_CONF_FILE, $relative_dir,
7597 $where, $mystrict, @files);
7598 }
7599 else
7600 {
7601 required_file_check_or_copy ($where, $dir, $file);
7602 }
7603 }
7604 }
7606 # &require_file ($WHERE, $MYSTRICT, @FILES)
7607 # -----------------------------------------
7608 sub require_file ($$@)
7609 {
7610 my ($where, $mystrict, @files) = @_;
7611 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7612 }
7614 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7615 # -----------------------------------------------------------
7616 sub require_file_with_macro ($$$@)
7617 {
7618 my ($cond, $macro, $mystrict, @files) = @_;
7619 $macro = rvar ($macro) unless ref $macro;
7620 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7621 }
7623 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7624 # ----------------------------------------------------------------
7625 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7626 # must be in that directory. Otherwise expect it in the current directory.
7627 sub require_libsource_with_macro ($$$@)
7628 {
7629 my ($cond, $macro, $mystrict, @files) = @_;
7630 $macro = rvar ($macro) unless ref $macro;
7631 if ($config_libobj_dir)
7632 {
7633 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7634 $config_libobj_dir, 0, @files);
7635 }
7636 else
7637 {
7638 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7639 }
7640 }
7642 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7643 # $MYSTRICT, @FILES)
7644 # ---------------------------------------------------------------
7645 sub queue_required_file_check_or_copy ($$$$@)
7646 {
7647 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7648 my @serial_loc;
7649 if (ref $where)
7650 {
7651 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7652 }
7653 else
7654 {
7655 @serial_loc = (QUEUE_STRING, $where);
7656 }
7657 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7658 }
7660 # &require_queued_file_check_or_copy ($QUEUE)
7661 # -------------------------------------------
7662 sub require_queued_file_check_or_copy ($)
7663 {
7664 my ($queue) = @_;
7665 my $where;
7666 my $dir = $queue->dequeue ();
7667 my $loc_key = $queue->dequeue ();
7668 if ($loc_key eq QUEUE_LOCATION)
7669 {
7670 $where = Automake::Location::deserialize ($queue);
7671 }
7672 elsif ($loc_key eq QUEUE_STRING)
7673 {
7674 $where = $queue->dequeue ();
7675 }
7676 else
7677 {
7678 prog_error "unexpected key $loc_key";
7679 }
7680 my $mystrict = $queue->dequeue ();
7681 my $nfiles = $queue->dequeue ();
7682 my @files;
7683 push @files, $queue->dequeue ()
7684 foreach (1 .. $nfiles);
7685 return
7686 unless $strictness >= $mystrict;
7687 foreach my $file (@files)
7688 {
7689 required_file_check_or_copy ($where, $config_aux_dir, $file);
7690 }
7691 }
7693 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7694 # ----------------------------------------------
7695 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7696 sub require_conf_file ($$@)
7697 {
7698 my ($where, $mystrict, @files) = @_;
7699 my $queue = defined $required_conf_file_queue ? 1 : 0;
7700 require_file_internal ($where, $mystrict, $config_aux_dir,
7701 $queue, @files);
7702 }
7705 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7706 # ----------------------------------------------------------------
7707 sub require_conf_file_with_macro ($$$@)
7708 {
7709 my ($cond, $macro, $mystrict, @files) = @_;
7710 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7711 $mystrict, @files);
7712 }
7714 ################################################################
7716 # &require_build_directory ($DIRECTORY)
7717 # -------------------------------------
7718 # Emit rules to create $DIRECTORY if needed, and return
7719 # the file that any target requiring this directory should be made
7720 # dependent upon.
7721 # We don't want to emit the rule twice, and want to reuse it
7722 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7723 sub require_build_directory ($)
7724 {
7725 my $directory = shift;
7727 return $directory_map{$directory} if exists $directory_map{$directory};
7729 my $cdir = File::Spec->canonpath ($directory);
7731 if (exists $directory_map{$cdir})
7732 {
7733 my $stamp = $directory_map{$cdir};
7734 $directory_map{$directory} = $stamp;
7735 return $stamp;
7736 }
7738 my $dirstamp = "$cdir/\$(am__dirstamp)";
7740 $directory_map{$directory} = $dirstamp;
7741 $directory_map{$cdir} = $dirstamp;
7743 # Set a variable for the dirstamp basename.
7744 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7745 '$(am__leading_dot)dirstamp');
7747 # Directory must be removed by 'make distclean'.
7748 $clean_files{$dirstamp} = DIST_CLEAN;
7750 $output_rules .= ("$dirstamp:\n"
7751 . "\t\@\$(MKDIR_P) $directory\n"
7752 . "\t\@: > $dirstamp\n");
7754 return $dirstamp;
7755 }
7757 # &require_build_directory_maybe ($FILE)
7758 # --------------------------------------
7759 # If $FILE lies in a subdirectory, emit a rule to create this
7760 # directory and return the file that $FILE should be made
7761 # dependent upon. Otherwise, just return the empty string.
7762 sub require_build_directory_maybe ($)
7763 {
7764 my $file = shift;
7765 my $directory = dirname ($file);
7767 if ($directory ne '.')
7768 {
7769 return require_build_directory ($directory);
7770 }
7771 else
7772 {
7773 return '';
7774 }
7775 }
7777 ################################################################
7779 # Push a list of files onto dist_common.
7780 sub push_dist_common
7781 {
7782 prog_error "push_dist_common run after handle_dist"
7783 if $handle_dist_run;
7784 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7785 '', INTERNAL, VAR_PRETTY);
7786 }
7789 ################################################################
7791 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7792 # ----------------------------------------------
7793 # Generate a Makefile.in given the name of the corresponding Makefile and
7794 # the name of the file output by config.status.
7795 sub generate_makefile ($$)
7796 {
7797 my ($makefile_am, $makefile_in) = @_;
7799 # Reset all the Makefile.am related variables.
7800 initialize_per_input;
7802 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7803 # warnings for this file. So hold any warning issued before
7804 # we have processed AUTOMAKE_OPTIONS.
7805 buffer_messages ('warning');
7807 # $OUTPUT is encoded. If it contains a ":" then the first element
7808 # is the real output file, and all remaining elements are input
7809 # files. We don't scan or otherwise deal with these input files,
7810 # other than to mark them as dependencies. See
7811 # &scan_autoconf_files for details.
7812 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7814 $relative_dir = dirname ($makefile);
7816 read_main_am_file ($makefile_am, $makefile_in);
7817 if (handle_options)
7818 {
7819 # Process buffered warnings.
7820 flush_messages;
7821 # Fatal error. Just return, so we can continue with next file.
7822 return;
7823 }
7824 # Process buffered warnings.
7825 flush_messages;
7827 # There are a few install-related variables that you should not define.
7828 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7829 {
7830 my $v = var $var;
7831 if ($v)
7832 {
7833 my $def = $v->def (TRUE);
7834 prog_error "$var not defined in condition TRUE"
7835 unless $def;
7836 reject_var $var, "'$var' should not be defined"
7837 if $def->owner != VAR_AUTOMAKE;
7838 }
7839 }
7841 # Catch some obsolete variables.
7842 msg_var ('obsolete', 'INCLUDES',
7843 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
7844 if var ('INCLUDES');
7846 # Must do this after reading .am file.
7847 define_variable ('subdir', $relative_dir, INTERNAL);
7849 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7850 # recursive rules are enabled.
7851 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7852 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7854 # Check first, because we might modify some state.
7855 check_gnu_standards;
7856 check_gnits_standards;
7858 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7859 handle_gettext;
7860 handle_libraries;
7861 handle_ltlibraries;
7862 handle_programs;
7863 handle_scripts;
7865 handle_silent;
7867 # These must be run after all the sources are scanned. They
7868 # use variables defined by &handle_libraries, &handle_ltlibraries,
7869 # or &handle_programs.
7870 handle_compile;
7871 handle_languages;
7872 handle_libtool;
7874 # Variables used by distdir.am and tags.am.
7875 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7876 if (! option 'no-dist')
7877 {
7878 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7879 }
7881 handle_texinfo;
7882 handle_emacs_lisp;
7883 handle_python;
7884 handle_java;
7885 handle_man_pages;
7886 handle_data;
7887 handle_headers;
7888 handle_subdirs;
7889 handle_user_recursion;
7890 handle_tags;
7891 handle_minor_options;
7892 # Must come after handle_programs so that %known_programs is up-to-date.
7893 handle_tests;
7895 # This must come after most other rules.
7896 handle_dist;
7898 handle_footer;
7899 do_check_merge_target;
7900 handle_all ($makefile);
7902 # FIXME: Gross!
7903 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7904 {
7905 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7906 }
7907 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7908 {
7909 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7910 }
7912 handle_install;
7913 handle_clean ($makefile);
7914 handle_factored_dependencies;
7916 # Comes last, because all the above procedures may have
7917 # defined or overridden variables.
7918 $output_vars .= output_variables;
7920 check_typos;
7922 if ($exit_code != 0)
7923 {
7924 verb "not writing $makefile_in because of earlier errors";
7925 return;
7926 }
7928 my $am_relative_dir = dirname ($makefile_am);
7929 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
7931 # We make sure that 'all:' is the first target.
7932 my $output =
7933 "$output_vars$output_all$output_header$output_rules$output_trailer";
7935 # Decide whether we must update the output file or not.
7936 # We have to update in the following situations.
7937 # * $force_generation is set.
7938 # * any of the output dependencies is younger than the output
7939 # * the contents of the output is different (this can happen
7940 # if the project has been populated with a file listed in
7941 # @common_files since the last run).
7942 # Output's dependencies are split in two sets:
7943 # * dependencies which are also configure dependencies
7944 # These do not change between each Makefile.am
7945 # * other dependencies, specific to the Makefile.am being processed
7946 # (such as the Makefile.am itself, or any Makefile fragment
7947 # it includes).
7948 my $timestamp = mtime $makefile_in;
7949 if (! $force_generation
7950 && $configure_deps_greatest_timestamp < $timestamp
7951 && $output_deps_greatest_timestamp < $timestamp
7952 && $output eq contents ($makefile_in))
7953 {
7954 verb "$makefile_in unchanged";
7955 # No need to update.
7956 return;
7957 }
7959 if (-e $makefile_in)
7960 {
7961 unlink ($makefile_in)
7962 or fatal "cannot remove $makefile_in: $!";
7963 }
7965 my $gm_file = new Automake::XFile "> $makefile_in";
7966 verb "creating $makefile_in";
7967 print $gm_file $output;
7968 }
7970 ################################################################
7975 ################################################################
7977 # Helper function for usage().
7978 sub print_autodist_files (@)
7979 {
7980 my @lcomm = sort (&uniq (@_));
7982 my @four;
7983 format USAGE_FORMAT =
7984 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7985 $four[0], $four[1], $four[2], $four[3]
7986 .
7987 local $~ = "USAGE_FORMAT";
7989 my $cols = 4;
7990 my $rows = int(@lcomm / $cols);
7991 my $rest = @lcomm % $cols;
7993 if ($rest)
7994 {
7995 $rows++;
7996 }
7997 else
7998 {
7999 $rest = $cols;
8000 }
8002 for (my $y = 0; $y < $rows; $y++)
8003 {
8004 @four = ("", "", "", "");
8005 for (my $x = 0; $x < $cols; $x++)
8006 {
8007 last if $y + 1 == $rows && $x == $rest;
8009 my $idx = (($x > $rest)
8010 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8011 : ($rows * $x));
8013 $idx += $y;
8014 $four[$x] = $lcomm[$idx];
8015 }
8016 write;
8017 }
8018 }
8021 # Print usage information.
8022 sub usage ()
8023 {
8024 print "Usage: $0 [OPTION]... [Makefile]...
8026 Generate Makefile.in for configure from Makefile.am.
8028 Operation modes:
8029 --help print this help, then exit
8030 --version print version number, then exit
8031 -v, --verbose verbosely list files processed
8032 --no-force only update Makefile.in's that are out of date
8033 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8035 Dependency tracking:
8036 -i, --ignore-deps disable dependency tracking code
8037 --include-deps enable dependency tracking code
8039 Flavors:
8040 --foreign set strictness to foreign
8041 --gnits set strictness to gnits
8042 --gnu set strictness to gnu
8044 Library files:
8045 -a, --add-missing add missing standard files to package
8046 --libdir=DIR set directory storing library files
8047 --print-libdir print directory storing library files
8048 -c, --copy with -a, copy missing files (default is symlink)
8049 -f, --force-missing force update of standard files
8051 ";
8052 Automake::ChannelDefs::usage;
8054 print "\nFiles automatically distributed if found " .
8055 "(always):\n";
8056 print_autodist_files @common_files;
8057 print "\nFiles automatically distributed if found " .
8058 "(under certain conditions):\n";
8059 print_autodist_files @common_sometimes;
8061 print '
8062 Report bugs to <@PACKAGE_BUGREPORT@>.
8063 GNU Automake home page: <@PACKAGE_URL@>.
8064 General help using GNU software: <http://www.gnu.org/gethelp/>.
8065 ';
8067 # --help always returns 0 per GNU standards.
8068 exit 0;
8069 }
8072 # &version ()
8073 # -----------
8074 # Print version information
8075 sub version ()
8076 {
8077 print <<EOF;
8078 automake (GNU $PACKAGE) $VERSION
8079 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8080 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8081 This is free software: you are free to change and redistribute it.
8082 There is NO WARRANTY, to the extent permitted by law.
8084 Written by Tom Tromey <tromey\@redhat.com>
8085 and Alexandre Duret-Lutz <adl\@gnu.org>.
8086 EOF
8087 # --version always returns 0 per GNU standards.
8088 exit 0;
8089 }
8091 ################################################################
8093 # Parse command line.
8094 sub parse_arguments ()
8095 {
8096 my $strict = 'gnu';
8097 my $ignore_deps = 0;
8098 my @warnings = ();
8100 my %cli_options =
8101 (
8102 'version' => \&version,
8103 'help' => \&usage,
8104 'libdir=s' => \$libdir,
8105 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8106 'gnu' => sub { $strict = 'gnu'; },
8107 'gnits' => sub { $strict = 'gnits'; },
8108 'foreign' => sub { $strict = 'foreign'; },
8109 'include-deps' => sub { $ignore_deps = 0; },
8110 'i|ignore-deps' => sub { $ignore_deps = 1; },
8111 'no-force' => sub { $force_generation = 0; },
8112 'f|force-missing' => \$force_missing,
8113 'a|add-missing' => \$add_missing,
8114 'c|copy' => \$copy_missing,
8115 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8116 'W|warnings=s' => \@warnings,
8117 );
8119 use Automake::Getopt ();
8120 Automake::Getopt::parse_options %cli_options;
8122 set_strictness ($strict);
8123 my $cli_where = new Automake::Location;
8124 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8125 for my $warning (@warnings)
8126 {
8127 &parse_warnings ('-W', $warning);
8128 }
8130 return unless @ARGV;
8132 my $errspec = 0;
8133 foreach my $arg (@ARGV)
8134 {
8135 fatal ("empty argument\nTry '$0 --help' for more information")
8136 if ($arg eq '');
8138 # Handle $local:$input syntax.
8139 my ($local, @rest) = split (/:/, $arg);
8140 @rest = ("$local.in",) unless @rest;
8141 my $input = locate_am @rest;
8142 if ($input)
8143 {
8144 push @input_files, $input;
8145 $output_files{$input} = join (':', ($local, @rest));
8146 }
8147 else
8148 {
8149 error "no Automake input file found for '$arg'";
8150 $errspec = 1;
8151 }
8152 }
8153 fatal "no input file found among supplied arguments"
8154 if $errspec && ! @input_files;
8155 }
8158 # handle_makefile ($MAKEFILE_IN)
8159 # ------------------------------
8160 # Deal with $MAKEFILE_IN.
8161 sub handle_makefile ($)
8162 {
8163 my ($file) = @_;
8164 ($am_file = $file) =~ s/\.in$//;
8165 if (! -f ($am_file . '.am'))
8166 {
8167 error "'$am_file.am' does not exist";
8168 }
8169 else
8170 {
8171 # Any warning setting now local to this Makefile.am.
8172 dup_channel_setup;
8174 generate_makefile ($am_file . '.am', $file);
8176 # Back out any warning setting.
8177 drop_channel_setup;
8178 }
8179 }
8181 # handle_makefiles_serial ()
8182 # --------------------------
8183 # Deal with all makefiles, without threads.
8184 sub handle_makefiles_serial ()
8185 {
8186 foreach my $file (@input_files)
8187 {
8188 handle_makefile ($file);
8189 }
8190 }
8192 # get_number_of_threads ()
8193 # ------------------------
8194 # Logic for deciding how many worker threads to use.
8195 sub get_number_of_threads
8196 {
8197 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8199 $nthreads = 0
8200 unless $nthreads =~ /^[0-9]+$/;
8202 # It doesn't make sense to use more threads than makefiles,
8203 my $max_threads = @input_files;
8205 if ($nthreads > $max_threads)
8206 {
8207 $nthreads = $max_threads;
8208 }
8209 return $nthreads;
8210 }
8212 # handle_makefiles_threaded ($NTHREADS)
8213 # -------------------------------------
8214 # Deal with all makefiles, using threads. The general strategy is to
8215 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8216 # worker threads push back everything that needs serialization:
8217 # * warning and (normal) error messages, for stable stderr output
8218 # order and content (avoiding duplicates, for example),
8219 # * races when installing aux files (and respective messages),
8220 # * races when collecting aux files for distribution.
8221 #
8222 # The latter requires that the makefile that deals with the aux dir
8223 # files be handled last, done by the master thread.
8224 sub handle_makefiles_threaded ($)
8225 {
8226 my ($nthreads) = @_;
8228 # The file queue distributes all makefiles, the message queues
8229 # collect all serializations needed for respective files.
8230 my $file_queue = Thread::Queue->new;
8231 my %msg_queues;
8232 foreach my $file (@input_files)
8233 {
8234 $msg_queues{$file} = Thread::Queue->new;
8235 }
8237 verb "spawning $nthreads worker threads";
8238 my @threads = (1 .. $nthreads);
8239 foreach my $t (@threads)
8240 {
8241 $t = threads->new (sub
8242 {
8243 while (my $file = $file_queue->dequeue)
8244 {
8245 verb "handling $file";
8246 my $queue = $msg_queues{$file};
8247 setup_channel_queue ($queue, QUEUE_MESSAGE);
8248 $required_conf_file_queue = $queue;
8249 handle_makefile ($file);
8250 $queue->enqueue (undef);
8251 setup_channel_queue (undef, undef);
8252 $required_conf_file_queue = undef;
8253 }
8254 return $exit_code;
8255 });
8256 }
8258 # Queue all makefiles.
8259 verb "queuing " . @input_files . " input files";
8260 $file_queue->enqueue (@input_files, (undef) x @threads);
8262 # Collect and process serializations.
8263 foreach my $file (@input_files)
8264 {
8265 verb "dequeuing messages for " . $file;
8266 reset_local_duplicates ();
8267 my $queue = $msg_queues{$file};
8268 while (my $key = $queue->dequeue)
8269 {
8270 if ($key eq QUEUE_MESSAGE)
8271 {
8272 pop_channel_queue ($queue);
8273 }
8274 elsif ($key eq QUEUE_CONF_FILE)
8275 {
8276 require_queued_file_check_or_copy ($queue);
8277 }
8278 else
8279 {
8280 prog_error "unexpected key $key";
8281 }
8282 }
8283 }
8285 foreach my $t (@threads)
8286 {
8287 my @exit_thread = $t->join;
8288 $exit_code = $exit_thread[0]
8289 if ($exit_thread[0] > $exit_code);
8290 }
8291 }
8293 ################################################################
8295 # Parse the WARNINGS environment variable.
8296 parse_WARNINGS;
8298 # Parse command line.
8299 parse_arguments;
8301 $configure_ac = require_configure_ac;
8303 # Do configure.ac scan only once.
8304 scan_autoconf_files;
8306 if (! @input_files)
8307 {
8308 my $msg = '';
8309 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8310 if -f 'Makefile.am';
8311 fatal ("no 'Makefile.am' found for any configure output$msg");
8312 }
8314 my $nthreads = get_number_of_threads ();
8316 if ($perl_threads && $nthreads >= 1)
8317 {
8318 handle_makefiles_threaded ($nthreads);
8319 }
8320 else
8321 {
8322 handle_makefiles_serial ();
8323 }
8325 exit $exit_code;
8328 ### Setup "GNU" style for perl-mode and cperl-mode.
8329 ## Local Variables:
8330 ## perl-indent-level: 2
8331 ## perl-continued-statement-offset: 2
8332 ## perl-continued-brace-offset: 0
8333 ## perl-brace-offset: 0
8334 ## perl-brace-imaginary-offset: 0
8335 ## perl-label-offset: -2
8336 ## cperl-indent-level: 2
8337 ## cperl-brace-offset: 0
8338 ## cperl-continued-brace-offset: 0
8339 ## cperl-label-offset: -2
8340 ## cperl-extra-newline-before-brace: t
8341 ## cperl-merge-trailing-else: nil
8342 ## cperl-continued-statement-offset: 2
8343 ## End: