| blob | 8c8b12731c79a0f78170cdceef8e584b631dea65 |
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 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
33 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
35 # Override SHELL. This is required on DJGPP so that system() uses
36 # bash, not COMMAND.COM which doesn't quote arguments properly.
37 # Other systems aren't expected to use $SHELL when Automake
38 # runs, but it should be safe to drop the "if DJGPP" guard if
39 # it turns up other systems need the same thing. After all,
40 # if SHELL is used, ./configure's SHELL is always better than
41 # the user's SHELL (which may be something like tcsh).
42 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
43 }
45 use Class::Struct ();
46 Class::Struct::struct (
47 # Short name of the language (c, f77...).
48 'name' => "\$",
49 # Nice name of the language (C, Fortran 77...).
50 'Name' => "\$",
52 # List of configure variables which must be defined.
53 'config_vars' => '@',
55 # 'pure' is '1' or ''. A 'pure' language is one where, if
56 # all the files in a directory are of that language, then we
57 # do not require the C compiler or any code to call it.
58 'pure' => "\$",
60 'autodep' => "\$",
62 # Name of the compiling variable (COMPILE).
63 'compiler' => "\$",
64 # Content of the compiling variable.
65 'compile' => "\$",
66 # Flag to require compilation without linking (-c).
67 'compile_flag' => "\$",
68 'extensions' => '@',
69 # A subroutine to compute a list of possible extensions of
70 # the product given the input extensions.
71 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
72 'output_extensions' => "\$",
73 # A list of flag variables used in 'compile'.
74 # (defaults to [])
75 'flags' => "@",
77 # Any tag to pass to libtool while compiling.
78 'libtool_tag' => "\$",
80 # The file to use when generating rules for this language.
81 # The default is 'depend2'.
82 'rule_file' => "\$",
84 # Name of the linking variable (LINK).
85 'linker' => "\$",
86 # Content of the linking variable.
87 'link' => "\$",
89 # Name of the compiler variable (CC).
90 'ccer' => "\$",
92 # Name of the linker variable (LD).
93 'lder' => "\$",
94 # Content of the linker variable ($(CC)).
95 'ld' => "\$",
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
99 '_finish' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
103 # compiled.
104 '_target_hook' => "\$",
106 # If TRUE, nodist_ sources will be compiled using specific rules
107 # (i.e. not inference rules). The default is FALSE.
108 'nodist_specific' => "\$");
111 sub finish ($)
112 {
113 my ($self) = @_;
114 if (defined $self->_finish)
115 {
116 &{$self->_finish} (@_);
117 }
118 }
120 sub target_hook ($$$$%)
121 {
122 my ($self) = @_;
123 if (defined $self->_target_hook)
124 {
125 &{$self->_target_hook} (@_);
126 }
127 }
129 package Automake;
131 use strict;
132 use Automake::Config;
133 BEGIN
134 {
135 if ($perl_threads)
136 {
137 require threads;
138 import threads;
139 require Thread::Queue;
140 import Thread::Queue;
141 }
142 }
143 use Automake::General;
144 use Automake::XFile;
145 use Automake::Channels;
146 use Automake::ChannelDefs;
147 use Automake::Configure_ac;
148 use Automake::FileUtils;
149 use Automake::Location;
150 use Automake::Condition qw/TRUE FALSE/;
151 use Automake::DisjConditions;
152 use Automake::Options;
153 use Automake::Variable;
154 use Automake::VarDef;
155 use Automake::Rule;
156 use Automake::RuleDef;
157 use Automake::Wrap 'makefile_wrap';
158 use File::Basename;
159 use File::Spec;
160 use Carp;
162 ## ----------- ##
163 ## Constants. ##
164 ## ----------- ##
166 # Some regular expressions. One reason to put them here is that it
167 # makes indentation work better in Emacs.
169 # Writing singled-quoted-$-terminated regexes is a pain because
170 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
171 # by a closing quote. Letting perl-mode think the quote is not closed
172 # leads to all sort of misindentations. On the other hand, defining
173 # regexes as double-quoted strings is far less readable. So usually
174 # we will write:
175 #
176 # $REGEX = '^regex_value' . "\$";
178 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
179 my $WHITE_PATTERN = '^\s*' . "\$";
180 my $COMMENT_PATTERN = '^#';
181 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
182 # A rule has three parts: a list of targets, a list of dependencies,
183 # and optionally actions.
184 my $RULE_PATTERN =
185 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
187 # Only recognize leading spaces, not leading tabs. If we recognize
188 # leading tabs here then we need to make the reader smarter, because
189 # otherwise it will think rules like 'foo=bar; \' are errors.
190 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
191 # This pattern recognizes a Gnits version id and sets $1 if the
192 # release is an alpha release. We also allow a suffix which can be
193 # used to extend the version number with a "fork" identifier.
194 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
196 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
197 my $ELSE_PATTERN =
198 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
199 my $ENDIF_PATTERN =
200 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
201 my $PATH_PATTERN = '(\w|[+/.-])+';
202 # This will pass through anything not of the prescribed form.
203 my $INCLUDE_PATTERN = ('^include\s+'
204 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
205 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
206 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
208 # Directories installed during 'install-exec' phase.
209 my $EXEC_DIR_PATTERN =
210 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
212 # Values for AC_CANONICAL_*
213 use constant AC_CANONICAL_BUILD => 1;
214 use constant AC_CANONICAL_HOST => 2;
215 use constant AC_CANONICAL_TARGET => 3;
217 # Values indicating when something should be cleaned.
218 use constant MOSTLY_CLEAN => 0;
219 use constant CLEAN => 1;
220 use constant DIST_CLEAN => 2;
221 use constant MAINTAINER_CLEAN => 3;
223 # Libtool files.
224 my @libtool_files = qw(ltmain.sh config.guess config.sub);
225 # ltconfig appears here for compatibility with old versions of libtool.
226 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
228 # Commonly found files we look for and automatically include in
229 # DISTFILES.
230 my @common_files =
231 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
232 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
233 ar-lib compile config.guess config.rpath
234 config.sub depcomp elisp-comp install-sh libversion.in mdate-sh
235 missing mkinstalldirs py-compile texinfo.tex ylwrap),
236 @libtool_files, @libtool_sometimes);
238 # Commonly used files we auto-include, but only sometimes. This list
239 # is used for the --help output only.
240 my @common_sometimes =
241 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
242 configure.ac configure.in stamp-vti);
244 # Standard directories from the GNU Coding Standards, and additional
245 # pkg* directories from Automake. Stored in a hash for fast member check.
246 my %standard_prefix =
247 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
248 lib libexec lisp locale localstate man man1 man2
249 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
250 pkgdata pkginclude pkglib pkglibexec ps sbin
251 sharedstate sysconf));
253 # Copyright on generated Makefile.ins.
254 my $gen_copyright = "\
255 # Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
257 # This Makefile.in is free software; the Free Software Foundation
258 # gives unlimited permission to copy and/or distribute it,
259 # with or without modifications, as long as this notice is preserved.
261 # This program is distributed in the hope that it will be useful,
262 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
263 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
264 # PARTICULAR PURPOSE.
265 ";
267 # These constants are returned by the lang_*_rewrite functions.
268 # LANG_SUBDIR means that the resulting object file should be in a
269 # subdir if the source file is. In this case the file name cannot
270 # have '..' components.
271 use constant LANG_IGNORE => 0;
272 use constant LANG_PROCESS => 1;
273 use constant LANG_SUBDIR => 2;
275 # These are used when keeping track of whether an object can be built
276 # by two different paths.
277 use constant COMPILE_LIBTOOL => 1;
278 use constant COMPILE_ORDINARY => 2;
280 # We can't always associate a location to a variable or a rule,
281 # when it's defined by Automake. We use INTERNAL in this case.
282 use constant INTERNAL => new Automake::Location;
284 # Serialization keys for message queues.
285 use constant QUEUE_MESSAGE => "msg";
286 use constant QUEUE_CONF_FILE => "conf file";
287 use constant QUEUE_LOCATION => "location";
288 use constant QUEUE_STRING => "string";
290 ## ---------------------------------- ##
291 ## Variables related to the options. ##
292 ## ---------------------------------- ##
294 # TRUE if we should always generate Makefile.in.
295 my $force_generation = 1;
297 # From the Perl manual.
298 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
300 # TRUE if missing standard files should be installed.
301 my $add_missing = 0;
303 # TRUE if we should copy missing files; otherwise symlink if possible.
304 my $copy_missing = 0;
306 # TRUE if we should always update files that we know about.
307 my $force_missing = 0;
310 ## ---------------------------------------- ##
311 ## Variables filled during files scanning. ##
312 ## ---------------------------------------- ##
314 # Name of the configure.ac file.
315 my $configure_ac;
317 # Files found by scanning configure.ac for LIBOBJS.
318 my %libsources = ();
320 # Names used in AC_CONFIG_HEADER call.
321 my @config_headers = ();
323 # Names used in AC_CONFIG_LINKS call.
324 my @config_links = ();
326 # List of Makefile.am's to process, and their corresponding outputs.
327 my @input_files = ();
328 my %output_files = ();
330 # Complete list of Makefile.am's that exist.
331 my @configure_input_files = ();
333 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
334 # and their outputs.
335 my @other_input_files = ();
336 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
337 # The keys are the files created by these macros.
338 my %ac_config_files_location = ();
339 # The condition under which AC_CONFIG_FOOS appears.
340 my %ac_config_files_condition = ();
342 # Directory to search for configure-required files. This
343 # will be computed by &locate_aux_dir and can be set using
344 # AC_CONFIG_AUX_DIR in configure.ac.
345 # $CONFIG_AUX_DIR is the 'raw' directory, valid only in the source-tree.
346 my $config_aux_dir = '';
347 my $config_aux_dir_set_in_configure_ac = 0;
348 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
349 # in Makefiles.
350 my $am_config_aux_dir = '';
352 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
353 # in configure.ac.
354 my $config_libobj_dir = '';
356 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
357 my $seen_gettext = 0;
358 # Whether AM_GNU_GETTEXT([external]) is used.
359 my $seen_gettext_external = 0;
360 # Where AM_GNU_GETTEXT appears.
361 my $ac_gettext_location;
362 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
363 my $seen_gettext_intl = 0;
365 # Lists of tags supported by Libtool.
366 my %libtool_tags = ();
367 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
368 # uses AC_REQUIRE_AUX_FILE.
369 my $libtool_new_api = 0;
371 # Most important AC_CANONICAL_* macro seen so far.
372 my $seen_canonical = 0;
374 # Where AM_MAINTAINER_MODE appears.
375 my $seen_maint_mode;
377 # Actual version we've seen.
378 my $package_version = '';
380 # Where version is defined.
381 my $package_version_location;
383 # TRUE if we've seen AM_PROG_AR
384 my $seen_ar = 0;
386 # TRUE if we've seen AM_PROG_CC_C_O
387 my $seen_cc_c_o = 0;
389 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
390 my %required_aux_file = ();
392 # Where AM_INIT_AUTOMAKE is called;
393 my $seen_init_automake = 0;
395 # TRUE if we've seen AM_AUTOMAKE_VERSION.
396 my $seen_automake_version = 0;
398 # Hash table of discovered configure substitutions. Keys are names,
399 # values are 'FILE:LINE' strings which are used by error message
400 # generation.
401 my %configure_vars = ();
403 # Ignored configure substitutions (i.e., variables not to be output in
404 # Makefile.in)
405 my %ignored_configure_vars = ();
407 # Files included by $configure_ac.
408 my @configure_deps = ();
410 # Greatest timestamp of configure's dependencies.
411 my $configure_deps_greatest_timestamp = 0;
413 # Hash table of AM_CONDITIONAL variables seen in configure.
414 my %configure_cond = ();
416 # This maps extensions onto language names.
417 my %extension_map = ();
419 # List of the DIST_COMMON files we discovered while reading
420 # configure.ac.
421 my $configure_dist_common = '';
423 # This maps languages names onto objects.
424 my %languages = ();
425 # Maps each linker variable onto a language object.
426 my %link_languages = ();
428 # maps extensions to needed source flags.
429 my %sourceflags = ();
431 # List of targets we must always output.
432 # FIXME: Complete, and remove falsely required targets.
433 my %required_targets =
434 (
435 'all' => 1,
436 'dvi' => 1,
437 'pdf' => 1,
438 'ps' => 1,
439 'info' => 1,
440 'install-info' => 1,
441 'install' => 1,
442 'install-data' => 1,
443 'install-exec' => 1,
444 'uninstall' => 1,
446 # FIXME: Not required, temporary hacks.
447 # Well, actually they are sort of required: the -recursive
448 # targets will run them anyway...
449 'html-am' => 1,
450 'dvi-am' => 1,
451 'pdf-am' => 1,
452 'ps-am' => 1,
453 'info-am' => 1,
454 'install-data-am' => 1,
455 'install-exec-am' => 1,
456 'install-html-am' => 1,
457 'install-dvi-am' => 1,
458 'install-pdf-am' => 1,
459 'install-ps-am' => 1,
460 'install-info-am' => 1,
461 'installcheck-am' => 1,
462 'uninstall-am' => 1,
464 'install-man' => 1,
465 );
467 # Queue to push require_conf_file requirements to.
468 my $required_conf_file_queue;
470 # The name of the Makefile currently being processed.
471 my $am_file = 'BUG';
473 ################################################################
475 ## ------------------------------------------ ##
476 ## Variables reset by &initialize_per_input. ##
477 ## ------------------------------------------ ##
479 # Relative dir of the output makefile.
480 my $relative_dir;
482 # Greatest timestamp of the output's dependencies (excluding
483 # configure's dependencies).
484 my $output_deps_greatest_timestamp;
486 # These variables are used when generating each Makefile.in.
487 # They hold the Makefile.in until it is ready to be printed.
488 my $output_vars;
489 my $output_all;
490 my $output_header;
491 my $output_rules;
492 my $output_trailer;
494 # This is the conditional stack, updated on if/else/endif, and
495 # used to build Condition objects.
496 my @cond_stack;
498 # This holds the set of included files.
499 my @include_stack;
501 # List of dependencies for the obvious targets.
502 my @all;
503 my @check;
504 my @check_tests;
506 # Keys in this hash table are files to delete. The associated
507 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
508 my %clean_files;
510 # Keys in this hash table are object files or other files in
511 # subdirectories which need to be removed. This only holds files
512 # which are created by compilations. The value in the hash indicates
513 # when the file should be removed.
514 my %compile_clean_files;
516 # Keys in this hash table are directories where we expect to build a
517 # libtool object. We use this information to decide what directories
518 # to delete.
519 my %libtool_clean_directories;
521 # Value of $(SOURCES), used by tags.am.
522 my @sources;
523 # Sources which go in the distribution.
524 my @dist_sources;
526 # This hash maps object file names onto their corresponding source
527 # file names. This is used to ensure that each object is created
528 # by a single source file.
529 my %object_map;
531 # This hash maps object file names onto an integer value representing
532 # whether this object has been built via ordinary compilation or
533 # libtool compilation (the COMPILE_* constants).
534 my %object_compilation_map;
537 # This keeps track of the directories for which we've already
538 # created dirstamp code. Keys are directories, values are stamp files.
539 # Several keys can share the same stamp files if they are equivalent
540 # (as are './/foo' and 'foo').
541 my %directory_map;
543 # All .P files.
544 my %dep_files;
546 # This is a list of all targets to run during "make dist".
547 my @dist_targets;
549 # Keep track of all programs declared in this Makefile, without
550 # $(EXEEXT). @substitutions@ are not listed.
551 my %known_programs;
552 my %known_libraries;
554 # This keeps track of which extensions we've seen (that we care
555 # about).
556 my %extension_seen;
558 # This is random scratch space for the language finish functions.
559 # Don't randomly overwrite it; examine other uses of keys first.
560 my %language_scratch;
562 # We keep track of which objects need special (per-executable)
563 # handling on a per-language basis.
564 my %lang_specific_files;
566 # This is set when 'handle_dist' has finished. Once this happens,
567 # we should no longer push on dist_common.
568 my $handle_dist_run;
570 # Used to store a set of linkers needed to generate the sources currently
571 # under consideration.
572 my %linkers_used;
574 # True if we need 'LINK' defined. This is a hack.
575 my $need_link;
577 # Does the generated Makefile have to build some compiled object
578 # (for binary programs, or plain or libtool libraries)?
579 my $must_handle_compiled_objects;
581 # Record each file processed by make_paragraphs.
582 my %transformed_files;
584 ################################################################
586 ## ---------------------------------------------- ##
587 ## Variables not reset by &initialize_per_input. ##
588 ## ---------------------------------------------- ##
590 # Cache each file processed by make_paragraphs.
591 # (This is different from %transformed_files because
592 # %transformed_files is reset for each file while %am_file_cache
593 # it global to the run.)
594 my %am_file_cache;
596 ################################################################
598 # var_SUFFIXES_trigger ($TYPE, $VALUE)
599 # ------------------------------------
600 # This is called by Automake::Variable::define() when SUFFIXES
601 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
602 # The work here needs to be performed as a side-effect of the
603 # macro_define() call because SUFFIXES definitions impact
604 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
605 # the input am file.
606 sub var_SUFFIXES_trigger ($$)
607 {
608 my ($type, $value) = @_;
609 accept_extensions (split (' ', $value));
610 }
611 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
613 ################################################################
615 ## --------------------------------- ##
616 ## Forward subroutine declarations. ##
617 ## --------------------------------- ##
618 sub register_language (%);
619 sub file_contents_internal ($$$%);
620 sub define_files_variable ($\@$$);
623 # &initialize_per_input ()
624 # ------------------------
625 # (Re)-Initialize per-Makefile.am variables.
626 sub initialize_per_input ()
627 {
628 reset_local_duplicates ();
630 $relative_dir = undef;
632 $output_deps_greatest_timestamp = 0;
634 $output_vars = '';
635 $output_all = '';
636 $output_header = '';
637 $output_rules = '';
638 $output_trailer = '';
640 Automake::Options::reset;
641 Automake::Variable::reset;
642 Automake::Rule::reset;
644 @cond_stack = ();
646 @include_stack = ();
648 @all = ();
649 @check = ();
650 @check_tests = ();
652 %clean_files = ();
653 %compile_clean_files = ();
655 # We always include '.'. This isn't strictly correct.
656 %libtool_clean_directories = ('.' => 1);
658 @sources = ();
659 @dist_sources = ();
661 %object_map = ();
662 %object_compilation_map = ();
664 %directory_map = ();
666 %dep_files = ();
668 @dist_targets = ();
670 %known_programs = ();
671 %known_libraries= ();
673 %extension_seen = ();
675 %language_scratch = ();
677 %lang_specific_files = ();
679 $handle_dist_run = 0;
681 $need_link = 0;
683 $must_handle_compiled_objects = 0;
685 %transformed_files = ();
686 }
689 ################################################################
691 # Initialize our list of languages that are internally supported.
693 # C.
694 register_language ('name' => 'c',
695 'Name' => 'C',
696 'config_vars' => ['CC'],
697 'autodep' => '',
698 'flags' => ['CFLAGS', 'CPPFLAGS'],
699 'ccer' => 'CC',
700 'compiler' => 'COMPILE',
701 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
702 'lder' => 'CCLD',
703 'ld' => '$(CC)',
704 'linker' => 'LINK',
705 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
706 'compile_flag' => '-c',
707 'libtool_tag' => 'CC',
708 'extensions' => ['.c']);
710 # C++.
711 register_language ('name' => 'cxx',
712 'Name' => 'C++',
713 'config_vars' => ['CXX'],
714 'linker' => 'CXXLINK',
715 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
716 'autodep' => 'CXX',
717 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
718 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
719 'ccer' => 'CXX',
720 'compiler' => 'CXXCOMPILE',
721 'compile_flag' => '-c',
722 'output_flag' => '-o',
723 'libtool_tag' => 'CXX',
724 'lder' => 'CXXLD',
725 'ld' => '$(CXX)',
726 'pure' => 1,
727 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
729 # Objective C.
730 register_language ('name' => 'objc',
731 'Name' => 'Objective C',
732 'config_vars' => ['OBJC'],
733 'linker' => 'OBJCLINK',
734 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
735 'autodep' => 'OBJC',
736 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
737 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
738 'ccer' => 'OBJC',
739 'compiler' => 'OBJCCOMPILE',
740 'compile_flag' => '-c',
741 'output_flag' => '-o',
742 'lder' => 'OBJCLD',
743 'ld' => '$(OBJC)',
744 'pure' => 1,
745 'extensions' => ['.m']);
747 # Objective C++.
748 register_language ('name' => 'objcxx',
749 'Name' => 'Objective C++',
750 'config_vars' => ['OBJCXX'],
751 'linker' => 'OBJCXXLINK',
752 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
753 'autodep' => 'OBJCXX',
754 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
755 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
756 'ccer' => 'OBJCXX',
757 'compiler' => 'OBJCXXCOMPILE',
758 'compile_flag' => '-c',
759 'output_flag' => '-o',
760 'lder' => 'OBJCXXLD',
761 'ld' => '$(OBJCXX)',
762 'pure' => 1,
763 'extensions' => ['.mm']);
765 # Unified Parallel C.
766 register_language ('name' => 'upc',
767 'Name' => 'Unified Parallel C',
768 'config_vars' => ['UPC'],
769 'linker' => 'UPCLINK',
770 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
771 'autodep' => 'UPC',
772 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
773 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
774 'ccer' => 'UPC',
775 'compiler' => 'UPCCOMPILE',
776 'compile_flag' => '-c',
777 'output_flag' => '-o',
778 'lder' => 'UPCLD',
779 'ld' => '$(UPC)',
780 'pure' => 1,
781 'extensions' => ['.upc']);
783 # Headers.
784 register_language ('name' => 'header',
785 'Name' => 'Header',
786 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
787 '.hpp', '.inc'],
788 # No output.
789 'output_extensions' => sub { return () },
790 # Nothing to do.
791 '_finish' => sub { });
793 # Vala
794 register_language ('name' => 'vala',
795 'Name' => 'Vala',
796 'config_vars' => ['VALAC'],
797 'flags' => [],
798 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
799 'ccer' => 'VALAC',
800 'compiler' => 'VALACOMPILE',
801 'extensions' => ['.vala'],
802 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
803 return ($ext,) },
804 'rule_file' => 'vala',
805 '_finish' => \&lang_vala_finish,
806 '_target_hook' => \&lang_vala_target_hook,
807 'nodist_specific' => 1);
809 # Yacc (C & C++).
810 register_language ('name' => 'yacc',
811 'Name' => 'Yacc',
812 'config_vars' => ['YACC'],
813 'flags' => ['YFLAGS'],
814 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
815 'ccer' => 'YACC',
816 'compiler' => 'YACCCOMPILE',
817 'extensions' => ['.y'],
818 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
819 return ($ext,) },
820 'rule_file' => 'yacc',
821 '_finish' => \&lang_yacc_finish,
822 '_target_hook' => \&lang_yacc_target_hook,
823 'nodist_specific' => 1);
824 register_language ('name' => 'yaccxx',
825 'Name' => 'Yacc (C++)',
826 'config_vars' => ['YACC'],
827 'rule_file' => 'yacc',
828 'flags' => ['YFLAGS'],
829 'ccer' => 'YACC',
830 'compiler' => 'YACCCOMPILE',
831 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
832 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
833 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
834 return ($ext,) },
835 '_finish' => \&lang_yacc_finish,
836 '_target_hook' => \&lang_yacc_target_hook,
837 'nodist_specific' => 1);
839 # Lex (C & C++).
840 register_language ('name' => 'lex',
841 'Name' => 'Lex',
842 'config_vars' => ['LEX'],
843 'rule_file' => 'lex',
844 'flags' => ['LFLAGS'],
845 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
846 'ccer' => 'LEX',
847 'compiler' => 'LEXCOMPILE',
848 'extensions' => ['.l'],
849 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
850 return ($ext,) },
851 '_finish' => \&lang_lex_finish,
852 '_target_hook' => \&lang_lex_target_hook,
853 'nodist_specific' => 1);
854 register_language ('name' => 'lexxx',
855 'Name' => 'Lex (C++)',
856 'config_vars' => ['LEX'],
857 'rule_file' => 'lex',
858 'flags' => ['LFLAGS'],
859 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
860 'ccer' => 'LEX',
861 'compiler' => 'LEXCOMPILE',
862 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
863 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
864 return ($ext,) },
865 '_finish' => \&lang_lex_finish,
866 '_target_hook' => \&lang_lex_target_hook,
867 'nodist_specific' => 1);
869 # Assembler.
870 register_language ('name' => 'asm',
871 'Name' => 'Assembler',
872 'config_vars' => ['CCAS', 'CCASFLAGS'],
874 'flags' => ['CCASFLAGS'],
875 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
876 # or anything else required. They can also set CCAS.
877 # Or simply use Preprocessed Assembler.
878 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
879 'ccer' => 'CCAS',
880 'compiler' => 'CCASCOMPILE',
881 'compile_flag' => '-c',
882 'output_flag' => '-o',
883 'extensions' => ['.s']);
885 # Preprocessed Assembler.
886 register_language ('name' => 'cppasm',
887 'Name' => 'Preprocessed Assembler',
888 'config_vars' => ['CCAS', 'CCASFLAGS'],
890 'autodep' => 'CCAS',
891 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
892 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
893 'ccer' => 'CPPAS',
894 'compiler' => 'CPPASCOMPILE',
895 'compile_flag' => '-c',
896 'output_flag' => '-o',
897 'extensions' => ['.S', '.sx']);
899 # Fortran 77
900 register_language ('name' => 'f77',
901 'Name' => 'Fortran 77',
902 'config_vars' => ['F77'],
903 'linker' => 'F77LINK',
904 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
905 'flags' => ['FFLAGS'],
906 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
907 'ccer' => 'F77',
908 'compiler' => 'F77COMPILE',
909 'compile_flag' => '-c',
910 'output_flag' => '-o',
911 'libtool_tag' => 'F77',
912 'lder' => 'F77LD',
913 'ld' => '$(F77)',
914 'pure' => 1,
915 'extensions' => ['.f', '.for']);
917 # Fortran
918 register_language ('name' => 'fc',
919 'Name' => 'Fortran',
920 'config_vars' => ['FC'],
921 'linker' => 'FCLINK',
922 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
923 'flags' => ['FCFLAGS'],
924 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
925 'ccer' => 'FC',
926 'compiler' => 'FCCOMPILE',
927 'compile_flag' => '-c',
928 'output_flag' => '-o',
929 'libtool_tag' => 'FC',
930 'lder' => 'FCLD',
931 'ld' => '$(FC)',
932 'pure' => 1,
933 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
935 # Preprocessed Fortran
936 register_language ('name' => 'ppfc',
937 'Name' => 'Preprocessed Fortran',
938 'config_vars' => ['FC'],
939 'linker' => 'FCLINK',
940 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
941 'lder' => 'FCLD',
942 'ld' => '$(FC)',
943 'flags' => ['FCFLAGS', 'CPPFLAGS'],
944 'ccer' => 'PPFC',
945 'compiler' => 'PPFCCOMPILE',
946 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
947 'compile_flag' => '-c',
948 'output_flag' => '-o',
949 'libtool_tag' => 'FC',
950 'pure' => 1,
951 'extensions' => ['.F90','.F95', '.F03', '.F08']);
953 # Preprocessed Fortran 77
954 #
955 # The current support for preprocessing Fortran 77 just involves
956 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
957 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
958 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
959 # for 'make' Version 3.76 Beta" (specifically, from info file
960 # '(make)Catalogue of Rules').
961 #
962 # A better approach would be to write an Autoconf test
963 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
964 # Fortran 77 compilers know how to do preprocessing. The Autoconf
965 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
966 # preprocessing capabilities, and then fall back on cpp (if cpp were
967 # available).
968 register_language ('name' => 'ppf77',
969 'Name' => 'Preprocessed Fortran 77',
970 'config_vars' => ['F77'],
971 'linker' => 'F77LINK',
972 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
973 'lder' => 'F77LD',
974 'ld' => '$(F77)',
975 'flags' => ['FFLAGS', 'CPPFLAGS'],
976 'ccer' => 'PPF77',
977 'compiler' => 'PPF77COMPILE',
978 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
979 'compile_flag' => '-c',
980 'output_flag' => '-o',
981 'libtool_tag' => 'F77',
982 'pure' => 1,
983 'extensions' => ['.F']);
985 # Ratfor.
986 register_language ('name' => 'ratfor',
987 'Name' => 'Ratfor',
988 'config_vars' => ['F77'],
989 'linker' => 'F77LINK',
990 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
991 'lder' => 'F77LD',
992 'ld' => '$(F77)',
993 'flags' => ['RFLAGS', 'FFLAGS'],
994 # FIXME also FFLAGS.
995 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
996 'ccer' => 'F77',
997 'compiler' => 'RCOMPILE',
998 'compile_flag' => '-c',
999 'output_flag' => '-o',
1000 'libtool_tag' => 'F77',
1001 'pure' => 1,
1002 'extensions' => ['.r']);
1004 # Java via gcj.
1005 register_language ('name' => 'java',
1006 'Name' => 'Java',
1007 'config_vars' => ['GCJ'],
1008 'linker' => 'GCJLINK',
1009 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1010 'autodep' => 'GCJ',
1011 'flags' => ['GCJFLAGS'],
1012 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1013 'ccer' => 'GCJ',
1014 'compiler' => 'GCJCOMPILE',
1015 'compile_flag' => '-c',
1016 'output_flag' => '-o',
1017 'libtool_tag' => 'GCJ',
1018 'lder' => 'GCJLD',
1019 'ld' => '$(GCJ)',
1020 'pure' => 1,
1021 'extensions' => ['.java', '.class', '.zip', '.jar']);
1023 ################################################################
1025 # Error reporting functions.
1027 # err_am ($MESSAGE, [%OPTIONS])
1028 # -----------------------------
1029 # Uncategorized errors about the current Makefile.am.
1030 sub err_am ($;%)
1031 {
1032 msg_am ('error', @_);
1033 }
1035 # err_ac ($MESSAGE, [%OPTIONS])
1036 # -----------------------------
1037 # Uncategorized errors about configure.ac.
1038 sub err_ac ($;%)
1039 {
1040 msg_ac ('error', @_);
1041 }
1043 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1044 # ---------------------------------------
1045 # Messages about about the current Makefile.am.
1046 sub msg_am ($$;%)
1047 {
1048 my ($channel, $msg, %opts) = @_;
1049 msg $channel, "${am_file}.am", $msg, %opts;
1050 }
1052 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1053 # ---------------------------------------
1054 # Messages about about configure.ac.
1055 sub msg_ac ($$;%)
1056 {
1057 my ($channel, $msg, %opts) = @_;
1058 msg $channel, $configure_ac, $msg, %opts;
1059 }
1061 ################################################################
1063 # subst ($TEXT)
1064 # -------------
1065 # Return a configure-style substitution using the indicated text.
1066 # We do this to avoid having the substitutions directly in automake.in;
1067 # when we do that they are sometimes removed and this causes confusion
1068 # and bugs.
1069 sub subst ($)
1070 {
1071 my ($text) = @_;
1072 return '@' . $text . '@';
1073 }
1075 ################################################################
1078 # $BACKPATH
1079 # &backname ($RELDIR)
1080 # --------------------
1081 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1082 # For instance 'src/foo' => '../..'.
1083 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1084 sub backname ($)
1085 {
1086 my ($file) = @_;
1087 my @res;
1088 foreach (split (/\//, $file))
1089 {
1090 next if $_ eq '.' || $_ eq '';
1091 if ($_ eq '..')
1092 {
1093 pop @res
1094 or prog_error ("trying to reverse path '$file' pointing outside tree");
1095 }
1096 else
1097 {
1098 push (@res, '..');
1099 }
1100 }
1101 return join ('/', @res) || '.';
1102 }
1104 ################################################################
1106 # 'silent-rules' mode handling functions.
1108 # verbose_var (NAME)
1109 # ------------------
1110 # The public variable stem used to implement 'silent-rules'.
1111 sub verbose_var ($)
1112 {
1113 my ($name) = @_;
1114 return 'AM_V_' . $name;
1115 }
1117 # verbose_private_var (NAME)
1118 # --------------------------
1119 # The naming policy for the private variables for 'silent-rules'.
1120 sub verbose_private_var ($)
1121 {
1122 my ($name) = @_;
1123 return 'am__v_' . $name;
1124 }
1126 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1127 # ----------------------------------------------------------
1128 # For 'silent-rules' mode, setup VAR and dispatcher, to expand to
1129 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to empty)
1130 # if not.
1131 sub define_verbose_var ($$;$)
1132 {
1133 my ($name, $silent_val, $verbose_val) = @_;
1134 $verbose_val = '' unless defined $verbose_val;
1135 my $var = verbose_var ($name);
1136 my $pvar = verbose_private_var ($name);
1137 my $silent_var = $pvar . '_0';
1138 my $verbose_var = $pvar . '_1';
1139 if (option 'silent-rules')
1140 {
1141 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1142 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1143 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1144 # See AM_SILENT_RULES in m4/silent.m4.
1145 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1146 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1147 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1148 $silent_val, '', INTERNAL, VAR_ASIS)
1149 if (! vardef ($silent_var, TRUE));
1150 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1151 $verbose_val, '', INTERNAL, VAR_ASIS)
1152 if (! vardef ($verbose_var, TRUE));
1153 }
1154 }
1156 # Above should not be needed in the general automake code.
1158 # verbose_flag (NAME)
1159 # -------------------
1160 # Contents of %VERBOSE%: variable to expand before rule command.
1161 sub verbose_flag ($)
1162 {
1163 my ($name) = @_;
1164 return '$(' . verbose_var ($name) . ')'
1165 if (option 'silent-rules');
1166 return '';
1167 }
1169 sub verbose_nodep_flag ($)
1170 {
1171 my ($name) = @_;
1172 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1173 if (option 'silent-rules');
1174 return '';
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 if (option 'silent-rules')
1192 {
1193 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1194 }
1195 }
1197 # define_verbose_texinfo
1198 # ----------------------
1199 # Engage the needed 'silent-rules' machinery for assorted texinfo commands.
1200 sub define_verbose_texinfo ()
1201 {
1202 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1203 foreach my $tag (@tagvars)
1204 {
1205 define_verbose_tagvar($tag);
1206 }
1207 define_verbose_var('texinfo', '-q');
1208 define_verbose_var('texidevnull', '> /dev/null');
1209 }
1211 # define_verbose_libtool
1212 # ----------------------
1213 # Engage the needed 'silent-rules' machinery for 'libtool --silent'.
1214 sub define_verbose_libtool ()
1215 {
1216 define_verbose_var ('lt', '--silent');
1217 return verbose_flag ('lt');
1218 }
1220 sub handle_silent ()
1221 {
1222 return unless option 'silent-rules';
1223 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1224 # used in make recipes to determine whether we are being run in
1225 # silent mode or not. The choice of the name derives from the LISP
1226 # convention of appending the letter 'P' to denote a predicate (see
1227 # also "the '-P' convention" in the Jargon File); we do so for lack
1228 # of a better convention.
1229 define_verbose_var ('P', 'false', ':');
1230 # *Always* provide the user with 'AM_V_GEN' for 'silent-rules' mode.
1231 define_verbose_tagvar ('GEN');
1232 define_verbose_var ('at', '@');
1233 }
1236 ################################################################
1239 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1240 sub handle_options
1241 {
1242 my $var = var ('AUTOMAKE_OPTIONS');
1243 if ($var)
1244 {
1245 if ($var->has_conditional_contents)
1246 {
1247 msg_var ('unsupported', $var,
1248 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1249 }
1250 my @options = map { { option => $_->[1], where => $_->[0] } }
1251 $var->value_as_list_recursive (cond_filter => TRUE,
1252 location => 1);
1253 return 1 if process_option_list (@options);
1254 }
1256 # Override portability-recursive warning.
1257 switch_warning ('no-portability-recursive')
1258 if option 'silent-rules';
1260 if ($strictness == GNITS)
1261 {
1262 set_option ('readme-alpha', INTERNAL);
1263 set_option ('std-options', INTERNAL);
1264 set_option ('check-news', INTERNAL);
1265 }
1267 return 0;
1268 }
1270 # shadow_unconditionally ($varname, $where)
1271 # -----------------------------------------
1272 # Return a $(variable) that contains all possible values
1273 # $varname can take.
1274 # If the VAR wasn't defined conditionally, return $(VAR).
1275 # Otherwise we create an am__VAR_DIST variable which contains
1276 # all possible values, and return $(am__VAR_DIST).
1277 sub shadow_unconditionally ($$)
1278 {
1279 my ($varname, $where) = @_;
1280 my $var = var $varname;
1281 if ($var->has_conditional_contents)
1282 {
1283 $varname = "am__${varname}_DIST";
1284 my @files = uniq ($var->value_as_list_recursive);
1285 define_pretty_variable ($varname, TRUE, $where, @files);
1286 }
1287 return "\$($varname)"
1288 }
1290 # check_user_variables (@LIST)
1291 # ----------------------------
1292 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1293 # otherwise.
1294 sub check_user_variables (@)
1295 {
1296 my @dont_override = @_;
1297 foreach my $flag (@dont_override)
1298 {
1299 my $var = var $flag;
1300 if ($var)
1301 {
1302 for my $cond ($var->conditions->conds)
1303 {
1304 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1305 {
1306 msg_cond_var ('gnu', $cond, $flag,
1307 "'$flag' is a user variable, "
1308 . "you should not override it;\n"
1309 . "use 'AM_$flag' instead");
1310 }
1311 }
1312 }
1313 }
1314 }
1316 # Call finish function for each language that was used.
1317 sub handle_languages
1318 {
1319 if (! option 'no-dependencies')
1320 {
1321 # Include auto-dep code. Don't include it if DEP_FILES would
1322 # be empty.
1323 if (&saw_sources_p (0) && keys %dep_files)
1324 {
1325 # Set location of depcomp.
1326 &define_variable ('depcomp',
1327 "\$(SHELL) $am_config_aux_dir/depcomp",
1328 INTERNAL);
1329 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1331 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1333 my @deplist = sort keys %dep_files;
1334 # Generate each 'include' individually. Irix 6 make will
1335 # not properly include several files resulting from a
1336 # variable expansion; generating many separate includes
1337 # seems safest.
1338 $output_rules .= "\n";
1339 foreach my $iter (@deplist)
1340 {
1341 $output_rules .= (subst ('AMDEP_TRUE')
1342 . subst ('am__include')
1343 . ' '
1344 . subst ('am__quote')
1345 . $iter
1346 . subst ('am__quote')
1347 . "\n");
1348 }
1350 # Compute the set of directories to remove in distclean-depend.
1351 my @depdirs = uniq (map { dirname ($_) } @deplist);
1352 $output_rules .= &file_contents ('depend',
1353 new Automake::Location,
1354 DEPDIRS => "@depdirs");
1355 }
1356 }
1357 else
1358 {
1359 &define_variable ('depcomp', '', INTERNAL);
1360 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1361 }
1363 my %done;
1365 # Is the C linker needed?
1366 my $needs_c = 0;
1367 foreach my $ext (sort keys %extension_seen)
1368 {
1369 next unless $extension_map{$ext};
1371 my $lang = $languages{$extension_map{$ext}};
1373 my $rule_file = $lang->rule_file || 'depend2';
1375 # Get information on $LANG.
1376 my $pfx = $lang->autodep;
1377 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1379 my ($AMDEP, $FASTDEP) =
1380 (option 'no-dependencies' || $lang->autodep eq 'no')
1381 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1383 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1384 my $verbose_nodep = ($AMDEP eq 'FALSE')
1385 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1386 my $silent = silent_flag ();
1388 my %transform = ('EXT' => $ext,
1389 'PFX' => $pfx,
1390 'FPFX' => $fpfx,
1391 'AMDEP' => $AMDEP,
1392 'FASTDEP' => $FASTDEP,
1393 '-c' => $lang->compile_flag || '',
1394 # These are not used, but they need to be defined
1395 # so &transform do not complain.
1396 SUBDIROBJ => 0,
1397 'DERIVED-EXT' => 'BUG',
1398 DIST_SOURCE => 1,
1399 VERBOSE => $verbose,
1400 'VERBOSE-NODEP' => $verbose_nodep,
1401 SILENT => $silent,
1402 );
1404 # Generate the appropriate rules for this extension.
1405 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1406 || defined $lang->compile)
1407 {
1408 # Some C compilers don't support -c -o. Use it only if really
1409 # needed.
1410 my $output_flag = $lang->output_flag || '';
1411 $output_flag = '-o'
1412 if (! $output_flag
1413 && $lang->name eq 'c'
1414 && option 'subdir-objects');
1416 # Compute a possible derived extension.
1417 # This is not used by depend2.am.
1418 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1420 # When we output an inference rule like '.c.o:' we
1421 # have two cases to consider: either subdir-objects
1422 # is used, or it is not.
1423 #
1424 # In the latter case the rule is used to build objects
1425 # in the current directory, and dependencies always
1426 # go into './$(DEPDIR)/'. We can hard-code this value.
1427 #
1428 # In the former case the rule can be used to build
1429 # objects in sub-directories too. Dependencies should
1430 # go into the appropriate sub-directories, e.g.,
1431 # 'sub/$(DEPDIR)/'. The value of this directory
1432 # needs to be computed on-the-fly.
1433 #
1434 # DEPBASE holds the name of this directory, plus the
1435 # basename part of the object file (extensions Po, TPo,
1436 # Plo, TPlo will be added later as appropriate). It is
1437 # either hardcoded, or a shell variable ('$depbase') that
1438 # will be computed by the rule.
1439 my $depbase =
1440 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1441 $output_rules .=
1442 file_contents ($rule_file,
1443 new Automake::Location,
1444 %transform,
1445 GENERIC => 1,
1447 'DERIVED-EXT' => $der_ext,
1449 DEPBASE => $depbase,
1450 BASE => '$*',
1451 SOURCE => '$<',
1452 SOURCEFLAG => $sourceflags{$ext} || '',
1453 OBJ => '$@',
1454 OBJOBJ => '$@',
1455 LTOBJ => '$@',
1457 COMPILE => '$(' . $lang->compiler . ')',
1458 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1459 -o => $output_flag,
1460 SUBDIROBJ => !! option 'subdir-objects');
1461 }
1463 # Now include code for each specially handled object with this
1464 # language.
1465 my %seen_files = ();
1466 foreach my $file (@{$lang_specific_files{$lang->name}})
1467 {
1468 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1470 # We might see a given object twice, for instance if it is
1471 # used under different conditions.
1472 next if defined $seen_files{$obj};
1473 $seen_files{$obj} = 1;
1475 prog_error ("found " . $lang->name .
1476 " in handle_languages, but compiler not defined")
1477 unless defined $lang->compile;
1479 my $obj_compile = $lang->compile;
1481 # Rewrite each occurrence of 'AM_$flag' in the compile
1482 # rule into '${derived}_$flag' if it exists.
1483 for my $flag (@{$lang->flags})
1484 {
1485 my $val = "${derived}_$flag";
1486 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1487 if set_seen ($val);
1488 }
1490 my $libtool_tag = '';
1491 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1492 {
1493 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1494 }
1496 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1497 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1499 my $ltverbose = define_verbose_libtool ();
1500 my $obj_ltcompile =
1501 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1502 . "--mode=compile $obj_compile";
1504 # We _need_ '-o' for per object rules.
1505 my $output_flag = $lang->output_flag || '-o';
1507 my $depbase = dirname ($obj);
1508 $depbase = ''
1509 if $depbase eq '.';
1510 $depbase .= '/'
1511 unless $depbase eq '';
1512 $depbase .= '$(DEPDIR)/' . basename ($obj);
1514 $output_rules .=
1515 file_contents ($rule_file,
1516 new Automake::Location,
1517 %transform,
1518 GENERIC => 0,
1520 DEPBASE => $depbase,
1521 BASE => $obj,
1522 SOURCE => $source,
1523 SOURCEFLAG => $sourceflags{$srcext} || '',
1524 # Use $myext and not '.o' here, in case
1525 # we are actually building a new source
1526 # file -- e.g. via yacc.
1527 OBJ => "$obj$myext",
1528 OBJOBJ => "$obj.obj",
1529 LTOBJ => "$obj.lo",
1531 VERBOSE => $verbose,
1532 'VERBOSE-NODEP' => $verbose_nodep,
1533 SILENT => $silent,
1534 COMPILE => $obj_compile,
1535 LTCOMPILE => $obj_ltcompile,
1536 -o => $output_flag,
1537 %file_transform);
1538 }
1540 # The rest of the loop is done once per language.
1541 next if defined $done{$lang};
1542 $done{$lang} = 1;
1544 # Load the language dependent Makefile chunks.
1545 my %lang = map { uc ($_) => 0 } keys %languages;
1546 $lang{uc ($lang->name)} = 1;
1547 $output_rules .= file_contents ('lang-compile',
1548 new Automake::Location,
1549 %transform, %lang);
1551 # If the source to a program consists entirely of code from a
1552 # 'pure' language, for instance C++ or Fortran 77, then we
1553 # don't need the C compiler code. However if we run into
1554 # something unusual then we do generate the C code. There are
1555 # probably corner cases here that do not work properly.
1556 # People linking Java code to Fortran code deserve pain.
1557 $needs_c ||= ! $lang->pure;
1559 define_compiler_variable ($lang)
1560 if ($lang->compile);
1562 define_linker_variable ($lang)
1563 if ($lang->link);
1565 require_variables ("$am_file.am", $lang->Name . " source seen",
1566 TRUE, @{$lang->config_vars});
1568 # Call the finisher.
1569 $lang->finish;
1571 # Flags listed in '->flags' are user variables (per GNU Standards),
1572 # they should not be overridden in the Makefile...
1573 my @dont_override = @{$lang->flags};
1574 # ... and so is LDFLAGS.
1575 push @dont_override, 'LDFLAGS' if $lang->link;
1577 check_user_variables @dont_override;
1578 }
1580 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1581 # suffix rule was learned), don't bother with the C stuff. But if
1582 # anything else creeps in, then use it.
1583 $needs_c = 1
1584 if $need_link || suffix_rules_count > 1;
1586 if ($needs_c)
1587 {
1588 &define_compiler_variable ($languages{'c'})
1589 unless defined $done{$languages{'c'}};
1590 define_linker_variable ($languages{'c'});
1591 }
1592 }
1595 # append_exeext { PREDICATE } $MACRO
1596 # ----------------------------------
1597 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1598 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1599 # ignored.
1600 #
1601 # This is typically used on all filenames of *_PROGRAMS, and filenames
1602 # of TESTS that are programs.
1603 sub append_exeext (&$)
1604 {
1605 my ($pred, $macro) = @_;
1607 transform_variable_recursively
1608 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1609 sub {
1610 my ($subvar, $val, $cond, $full_cond) = @_;
1611 # Append $(EXEEXT) unless the user did it already, or it's a
1612 # @substitution@.
1613 $val .= '$(EXEEXT)'
1614 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1615 return $val;
1616 });
1617 }
1620 # Check to make sure a source defined in LIBOBJS is not explicitly
1621 # mentioned. This is a separate function (as opposed to being inlined
1622 # in handle_source_transform) because it isn't always appropriate to
1623 # do this check.
1624 sub check_libobjs_sources
1625 {
1626 my ($one_file, $unxformed) = @_;
1628 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1629 'dist_EXTRA_', 'nodist_EXTRA_')
1630 {
1631 my @files;
1632 my $varname = $prefix . $one_file . '_SOURCES';
1633 my $var = var ($varname);
1634 if ($var)
1635 {
1636 @files = $var->value_as_list_recursive;
1637 }
1638 elsif ($prefix eq '')
1639 {
1640 @files = ($unxformed . '.c');
1641 }
1642 else
1643 {
1644 next;
1645 }
1647 foreach my $file (@files)
1648 {
1649 err_var ($prefix . $one_file . '_SOURCES',
1650 "automatically discovered file '$file' should not" .
1651 " be explicitly mentioned")
1652 if defined $libsources{$file};
1653 }
1654 }
1655 }
1658 # @OBJECTS
1659 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1660 # -----------------------------------------------------------------------------
1661 # Does much of the actual work for handle_source_transform.
1662 # Arguments are:
1663 # $VAR is the name of the variable that the source filenames come from
1664 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1665 # $DERIVED is the name of resulting executable or library
1666 # $OBJ is the object extension (e.g., '.lo')
1667 # $FILE the source file to transform
1668 # %TRANSFORM contains extras arguments to pass to file_contents
1669 # when producing explicit rules
1670 # Result is a list of the names of objects
1671 # %linkers_used will be updated with any linkers needed
1672 sub handle_single_transform ($$$$$%)
1673 {
1674 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1675 my @files = ($_file);
1676 my @result = ();
1678 # Turn sources into objects. We use a while loop like this
1679 # because we might add to @files in the loop.
1680 while (scalar @files > 0)
1681 {
1682 $_ = shift @files;
1684 # Configure substitutions in _SOURCES variables are errors.
1685 if (/^\@.*\@$/)
1686 {
1687 my $parent_msg = '';
1688 $parent_msg = "\nand is referred to from '$topparent'"
1689 if $topparent ne $var->name;
1690 err_var ($var,
1691 "'" . $var->name . "' includes configure substitution '$_'"
1692 . $parent_msg . ";\nconfigure " .
1693 "substitutions are not allowed in _SOURCES variables");
1694 next;
1695 }
1697 # If the source file is in a subdirectory then the '.o' is put
1698 # into the current directory, unless the subdir-objects option
1699 # is in effect.
1701 # Split file name into base and extension.
1702 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1703 my $full = $_;
1704 my $directory = $1 || '';
1705 my $base = $2;
1706 my $extension = $3;
1708 # We must generate a rule for the object if it requires its own flags.
1709 my $renamed = 0;
1710 my ($linker, $object);
1712 # This records whether we've seen a derived source file (e.g.
1713 # yacc output).
1714 my $derived_source = 0;
1716 # This holds the 'aggregate context' of the file we are
1717 # currently examining. If the file is compiled with
1718 # per-object flags, then it will be the name of the object.
1719 # Otherwise it will be 'AM'. This is used by the target hook
1720 # language function.
1721 my $aggregate = 'AM';
1723 $extension = &derive_suffix ($extension, $obj);
1724 my $lang;
1725 if ($extension_map{$extension} &&
1726 ($lang = $languages{$extension_map{$extension}}))
1727 {
1728 # Found the language, so see what it says.
1729 &saw_extension ($extension);
1731 # Do we have per-executable flags for this executable?
1732 my $have_per_exec_flags = 0;
1733 my @peflags = @{$lang->flags};
1734 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1735 foreach my $flag (@peflags)
1736 {
1737 if (set_seen ("${derived}_$flag"))
1738 {
1739 $have_per_exec_flags = 1;
1740 last;
1741 }
1742 }
1744 # Note: computed subr call. The language rewrite function
1745 # should return one of the LANG_* constants. It could
1746 # also return a list whose first value is such a constant
1747 # and whose second value is a new source extension which
1748 # should be applied. This means this particular language
1749 # generates another source file which we must then process
1750 # further.
1751 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1752 defined &$subr or $subr = \&lang_sub_obj;
1753 my ($r, $source_extension)
1754 = &$subr ($directory, $base, $extension,
1755 $obj, $have_per_exec_flags, $var);
1756 # Skip this entry if we were asked not to process it.
1757 next if $r == LANG_IGNORE;
1759 # Now extract linker and other info.
1760 $linker = $lang->linker;
1762 my $this_obj_ext;
1763 if (defined $source_extension)
1764 {
1765 $this_obj_ext = $source_extension;
1766 $derived_source = 1;
1767 }
1768 else
1769 {
1770 $this_obj_ext = $obj;
1771 }
1772 $object = $base . $this_obj_ext;
1774 if ($have_per_exec_flags)
1775 {
1776 # We have a per-executable flag in effect for this
1777 # object. In this case we rewrite the object's
1778 # name to ensure it is unique.
1780 # We choose the name 'DERIVED_OBJECT' to ensure
1781 # (1) uniqueness, and (2) continuity between
1782 # invocations. However, this will result in a
1783 # name that is too long for losing systems, in
1784 # some situations. So we provide _SHORTNAME to
1785 # override.
1787 my $dname = $derived;
1788 my $var = var ($derived . '_SHORTNAME');
1789 if ($var)
1790 {
1791 # FIXME: should use the same Condition as
1792 # the _SOURCES variable. But this is really
1793 # silly overkill -- nobody should have
1794 # conditional shortnames.
1795 $dname = $var->variable_value;
1796 }
1797 $object = $dname . '-' . $object;
1799 prog_error ($lang->name . " flags defined without compiler")
1800 if ! defined $lang->compile;
1802 $renamed = 1;
1803 }
1805 # If rewrite said it was ok, put the object into a
1806 # subdir.
1807 if ($r == LANG_SUBDIR && $directory ne '')
1808 {
1809 $object = $directory . '/' . $object;
1810 }
1812 # If the object file has been renamed (because per-target
1813 # flags are used) we cannot compile the file with an
1814 # inference rule: we need an explicit rule.
1815 #
1816 # If the source is in a subdirectory and the object is in
1817 # the current directory, we also need an explicit rule.
1818 #
1819 # If both source and object files are in a subdirectory
1820 # (this happens when the subdir-objects option is used),
1821 # then the inference will work.
1822 #
1823 # The latter case deserves a historical note. When the
1824 # subdir-objects option was added on 1999-04-11 it was
1825 # thought that inferences rules would work for
1826 # subdirectory objects too. Later, on 1999-11-22,
1827 # automake was changed to output explicit rules even for
1828 # subdir-objects. Nobody remembers why, but this occurred
1829 # soon after the merge of the user-dep-gen-branch so it
1830 # might be related. In late 2003 people complained about
1831 # the size of the generated Makefile.ins (libgcj, with
1832 # 2200+ subdir objects was reported to have a 9MB
1833 # Makefile), so we now rely on inference rules again.
1834 # Maybe we'll run across the same issue as in the past,
1835 # but at least this time we can document it. However since
1836 # dependency tracking has evolved it is possible that
1837 # our old problem no longer exists.
1838 # Using inference rules for subdir-objects has been tested
1839 # with GNU make, Solaris make, Ultrix make, BSD make,
1840 # HP-UX make, and OSF1 make successfully.
1841 if ($renamed
1842 || ($directory ne '' && ! option 'subdir-objects')
1843 # We must also use specific rules for a nodist_ source
1844 # if its language requests it.
1845 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1846 {
1847 my $obj_sans_ext = substr ($object, 0,
1848 - length ($this_obj_ext));
1849 my $full_ansi;
1850 if ($directory ne '')
1851 {
1852 $full_ansi = $directory . '/' . $base . $extension;
1853 }
1854 else
1855 {
1856 $full_ansi = $base . $extension;
1857 }
1859 my @specifics = ($full_ansi, $obj_sans_ext,
1860 # Only use $this_obj_ext in the derived
1861 # source case because in the other case we
1862 # *don't* want $(OBJEXT) to appear here.
1863 ($derived_source ? $this_obj_ext : '.o'),
1864 $extension);
1866 # If we renamed the object then we want to use the
1867 # per-executable flag name. But if this is simply a
1868 # subdir build then we still want to use the AM_ flag
1869 # name.
1870 if ($renamed)
1871 {
1872 unshift @specifics, $derived;
1873 $aggregate = $derived;
1874 }
1875 else
1876 {
1877 unshift @specifics, 'AM';
1878 }
1880 # Each item on this list is a reference to a list consisting
1881 # of four values followed by additional transform flags for
1882 # file_contents. The four values are the derived flag prefix
1883 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1884 # source file, the base name of the output file, and
1885 # the extension for the object file.
1886 push (@{$lang_specific_files{$lang->name}},
1887 [@specifics, %transform]);
1888 }
1889 }
1890 elsif ($extension eq $obj)
1891 {
1892 # This is probably the result of a direct suffix rule.
1893 # In this case we just accept the rewrite.
1894 $object = "$base$extension";
1895 $object = "$directory/$object" if $directory ne '';
1896 $linker = '';
1897 }
1898 else
1899 {
1900 # No error message here. Used to have one, but it was
1901 # very unpopular.
1902 # FIXME: we could potentially do more processing here,
1903 # perhaps treating the new extension as though it were a
1904 # new source extension (as above). This would require
1905 # more restructuring than is appropriate right now.
1906 next;
1907 }
1909 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1910 if (defined $object_map{$object}
1911 && $object_map{$object} ne $full);
1913 my $comp_val = (($object =~ /\.lo$/)
1914 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1915 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1916 if (defined $object_compilation_map{$comp_obj}
1917 && $object_compilation_map{$comp_obj} != 0
1918 # Only see the error once.
1919 && ($object_compilation_map{$comp_obj}
1920 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1921 && $object_compilation_map{$comp_obj} != $comp_val)
1922 {
1923 err_am "object '$comp_obj' created both with libtool and without";
1924 }
1925 $object_compilation_map{$comp_obj} |= $comp_val;
1927 if (defined $lang)
1928 {
1929 # Let the language do some special magic if required.
1930 $lang->target_hook ($aggregate, $object, $full, %transform);
1931 }
1933 if ($derived_source)
1934 {
1935 prog_error ($lang->name . " has automatic dependency tracking")
1936 if $lang->autodep ne 'no';
1937 # Make sure this new source file is handled next. That will
1938 # make it appear to be at the right place in the list.
1939 unshift (@files, $object);
1940 # Distribute derived sources unless the source they are
1941 # derived from is not.
1942 &push_dist_common ($object)
1943 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1944 next;
1945 }
1947 $linkers_used{$linker} = 1;
1949 push (@result, $object);
1951 if (! defined $object_map{$object})
1952 {
1953 my @dep_list = ();
1954 $object_map{$object} = $full;
1956 # If resulting object is in subdir, we need to make
1957 # sure the subdir exists at build time.
1958 if ($object =~ /\//)
1959 {
1960 # FIXME: check that $DIRECTORY is somewhere in the
1961 # project
1963 # For Java, the way we're handling it right now, a
1964 # '..' component doesn't make sense.
1965 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1966 {
1967 err_am "'$full' should not contain a '..' component";
1968 }
1970 # Make sure *all* objects files in the subdirectory are
1971 # removed by "make mostlyclean". Not only this is more
1972 # efficient than listing the object files to be removed
1973 # individually (which would cause an 'rm' invocation for
1974 # each of them -- very inefficient, see bug#10697), it
1975 # would also leave stale object files in the subdirectory
1976 # whenever a source file there is removed or renamed.
1977 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1978 if ($object =~ /\.lo$/)
1979 {
1980 # If we have a libtool object, then we also must remove
1981 # any '.lo' objects in its same subdirectory.
1982 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1983 # Remember to cleanup .libs/ in this directory.
1984 $libtool_clean_directories{$directory} = 1;
1985 }
1987 push (@dep_list, require_build_directory ($directory));
1989 # If we're generating dependencies, we also want
1990 # to make sure that the appropriate subdir of the
1991 # .deps directory is created.
1992 push (@dep_list,
1993 require_build_directory ($directory . '/$(DEPDIR)'))
1994 unless option 'no-dependencies';
1995 }
1997 &pretty_print_rule ($object . ':', "\t", @dep_list)
1998 if scalar @dep_list > 0;
1999 }
2001 # Transform .o or $o file into .P file (for automatic
2002 # dependency code).
2003 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2004 # might fail over them in an include statement.
2005 # Leading double slashes may be special, as per Posix, so deal
2006 # with them carefully.
2007 if ($lang && $lang->autodep ne 'no')
2008 {
2009 my $depfile = $object;
2010 $depfile =~ s/\.([^.]*)$/.P$1/;
2011 $depfile =~ s/\$\(OBJEXT\)$/o/;
2012 my $maybe_extra_leading_slash = '';
2013 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2014 $depfile =~ s,/+,/,g;
2015 my $basename = basename ($depfile);
2016 # This might make $dirname empty, but we account for that below.
2017 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2018 $dirname = $maybe_extra_leading_slash . $dirname;
2019 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2020 }
2021 }
2023 return @result;
2024 }
2027 # $LINKER
2028 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2029 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2030 # ---------------------------------------------------------------------------
2031 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2032 #
2033 # Arguments are:
2034 # $VAR is the name of the _SOURCES variable
2035 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2036 # it will be generated and returned).
2037 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2038 # work done to determine the linker will be).
2039 # $ONE_FILE is the canonical (transformed) name of object to build
2040 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2041 # $TOPPARENT is the _SOURCES variable being processed.
2042 # $WHERE context into which this definition is done
2043 # %TRANSFORM extra arguments to pass to file_contents when producing
2044 # rules
2045 #
2046 # Result is a pair ($LINKER, $OBJVAR):
2047 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2048 sub define_objects_from_sources ($$$$$$$%)
2049 {
2050 my ($var, $objvar, $nodefine, $one_file,
2051 $obj, $topparent, $where, %transform) = @_;
2053 my $needlinker = "";
2055 transform_variable_recursively
2056 ($var, $objvar, 'am__objects', $nodefine, $where,
2057 # The transform code to run on each filename.
2058 sub {
2059 my ($subvar, $val, $cond, $full_cond) = @_;
2060 my @trans = handle_single_transform ($subvar, $topparent,
2061 $one_file, $obj, $val,
2062 %transform);
2063 $needlinker = "true" if @trans;
2064 return @trans;
2065 });
2067 return $needlinker;
2068 }
2071 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2072 # -----------------------------------------------------------------------------
2073 # Handle SOURCE->OBJECT transform for one program or library.
2074 # Arguments are:
2075 # canonical (transformed) name of target to build
2076 # actual target of object to build
2077 # object extension (i.e., either '.o' or '$o')
2078 # location of the source variable
2079 # extra arguments to pass to file_contents when producing rules
2080 # Return the name of the linker variable that must be used.
2081 # Empty return means just use 'LINK'.
2082 sub handle_source_transform ($$$$%)
2083 {
2084 # one_file is canonical name. unxformed is given name. obj is
2085 # object extension.
2086 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2088 my $linker = '';
2090 # No point in continuing if _OBJECTS is defined.
2091 return if reject_var ($one_file . '_OBJECTS',
2092 $one_file . '_OBJECTS should not be defined');
2094 my %used_pfx = ();
2095 my $needlinker;
2096 %linkers_used = ();
2097 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2098 'dist_EXTRA_', 'nodist_EXTRA_')
2099 {
2100 my $varname = $prefix . $one_file . "_SOURCES";
2101 my $var = var $varname;
2102 next unless $var;
2104 # We are going to define _OBJECTS variables using the prefix.
2105 # Then we glom them all together. So we can't use the null
2106 # prefix here as we need it later.
2107 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2109 # Keep track of which prefixes we saw.
2110 $used_pfx{$xpfx} = 1
2111 unless $prefix =~ /EXTRA_/;
2113 push @sources, "\$($varname)";
2114 push @dist_sources, shadow_unconditionally ($varname, $where)
2115 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2117 $needlinker |=
2118 define_objects_from_sources ($varname,
2119 $xpfx . $one_file . '_OBJECTS',
2120 $prefix =~ /EXTRA_/,
2121 $one_file, $obj, $varname, $where,
2122 DIST_SOURCE => ($prefix !~ /^nodist_/),
2123 %transform);
2124 }
2125 if ($needlinker)
2126 {
2127 $linker ||= &resolve_linker (%linkers_used);
2128 }
2130 my @keys = sort keys %used_pfx;
2131 if (scalar @keys == 0)
2132 {
2133 # The default source for libfoo.la is libfoo.c, but for
2134 # backward compatibility we first look at libfoo_la.c,
2135 # if no default source suffix is given.
2136 my $old_default_source = "$one_file.c";
2137 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2138 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2139 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2140 if $default_source_ext =~ /[\t ]/;
2141 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2142 if ($old_default_source ne $default_source
2143 && !$ext_var
2144 && (rule $old_default_source
2145 || rule '$(srcdir)/' . $old_default_source
2146 || rule '${srcdir}/' . $old_default_source
2147 || -f $old_default_source))
2148 {
2149 my $loc = $where->clone;
2150 $loc->pop_context;
2151 msg ('obsolete', $loc,
2152 "the default source for '$unxformed' has been changed "
2153 . "to '$default_source'.\n(Using '$old_default_source' for "
2154 . "backward compatibility.)");
2155 $default_source = $old_default_source;
2156 }
2157 # If a rule exists to build this source with a $(srcdir)
2158 # prefix, use that prefix in our variables too. This is for
2159 # the sake of BSD Make.
2160 if (rule '$(srcdir)/' . $default_source
2161 || rule '${srcdir}/' . $default_source)
2162 {
2163 $default_source = '$(srcdir)/' . $default_source;
2164 }
2166 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2167 push (@sources, $default_source);
2168 push (@dist_sources, $default_source);
2170 %linkers_used = ();
2171 my (@result) =
2172 handle_single_transform ($one_file . '_SOURCES',
2173 $one_file . '_SOURCES',
2174 $one_file, $obj,
2175 $default_source, %transform);
2176 $linker ||= &resolve_linker (%linkers_used);
2177 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2178 }
2179 else
2180 {
2181 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2182 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2183 }
2185 # If we want to use 'LINK' we must make sure it is defined.
2186 if ($linker eq '')
2187 {
2188 $need_link = 1;
2189 }
2191 return $linker;
2192 }
2195 # handle_lib_objects ($XNAME, $VAR)
2196 # ---------------------------------
2197 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2198 # Also, generate _DEPENDENCIES variable if appropriate.
2199 # Arguments are:
2200 # transformed name of object being built, or empty string if no object
2201 # name of _LDADD/_LIBADD-type variable to examine
2202 # Returns 1 if LIBOBJS seen, 0 otherwise.
2203 sub handle_lib_objects
2204 {
2205 my ($xname, $varname) = @_;
2207 my $var = var ($varname);
2208 prog_error "'$varname' undefined"
2209 unless $var;
2210 prog_error "unexpected variable name '$varname'"
2211 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2212 my $prefix = $1 || 'AM_';
2214 my $seen_libobjs = 0;
2215 my $flagvar = 0;
2217 transform_variable_recursively
2218 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2219 ! $xname, INTERNAL,
2220 # Transformation function, run on each filename.
2221 sub {
2222 my ($subvar, $val, $cond, $full_cond) = @_;
2224 if ($val =~ /^-/)
2225 {
2226 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2227 if ($val !~ /^-[lL]/ &&
2228 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2229 # for Libtool libraries or programs. (Actually we are a bit
2230 # lax here since this code also applies to non-libtool
2231 # libraries or programs, for which -dlopen and -dlopreopen
2232 # are pure nonsense. Diagnosing this doesn't seem very
2233 # important: the developer will quickly get complaints from
2234 # the linker.)
2235 $val !~ /^-dl(?:pre)?open$/ &&
2236 # Only get this error once.
2237 ! $flagvar)
2238 {
2239 $flagvar = 1;
2240 # FIXME: should display a stack of nested variables
2241 # as context when $var != $subvar.
2242 err_var ($var, "linker flags such as '$val' belong in "
2243 . "'${prefix}LDFLAGS'");
2244 }
2245 return ();
2246 }
2247 elsif ($val !~ /^\@.*\@$/)
2248 {
2249 # Assume we have a file of some sort, and output it into the
2250 # dependency variable. Autoconf substitutions are not output;
2251 # rarely is a new dependency substituted into e.g. foo_LDADD
2252 # -- but bad things (e.g. -lX11) are routinely substituted.
2253 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2254 # and handled specially below.
2255 return $val;
2256 }
2257 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2258 {
2259 handle_LIBOBJS ($subvar, $cond, $1);
2260 $seen_libobjs = 1;
2261 return $val;
2262 }
2263 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2264 {
2265 handle_ALLOCA ($subvar, $cond, $1);
2266 return $val;
2267 }
2268 else
2269 {
2270 return ();
2271 }
2272 });
2274 return $seen_libobjs;
2275 }
2277 # handle_LIBOBJS_or_ALLOCA ($VAR)
2278 # -------------------------------
2279 # Definitions common to LIBOBJS and ALLOCA.
2280 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2281 sub handle_LIBOBJS_or_ALLOCA ($)
2282 {
2283 my ($var) = @_;
2285 my $dir = '';
2287 # If LIBOBJS files must be built in another directory we have
2288 # to define LIBOBJDIR and ensure the files get cleaned.
2289 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2290 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2291 if ($config_libobj_dir
2292 && $relative_dir ne $config_libobj_dir)
2293 {
2294 if (option 'subdir-objects')
2295 {
2296 # In the top-level Makefile we do not use $(top_builddir), because
2297 # we are already there, and since the targets are built without
2298 # a $(top_builddir), it helps BSD Make to match them with
2299 # dependencies.
2300 $dir = "$config_libobj_dir/"
2301 if $config_libobj_dir ne '.';
2302 $dir = backname ($relative_dir) . "/$dir"
2303 if $relative_dir ne '.';
2304 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2305 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2306 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2307 # be created by libtool as a side-effect of creating LTLIBOBJS).
2308 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2309 }
2310 else
2311 {
2312 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2313 . " 'subdir-objects' is not set");
2314 }
2315 }
2317 return $dir;
2318 }
2320 sub handle_LIBOBJS ($$$)
2321 {
2322 my ($var, $cond, $lt) = @_;
2323 my $myobjext = $lt ? 'lo' : 'o';
2324 $lt ||= '';
2326 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2327 if ! keys %libsources;
2329 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2331 foreach my $iter (keys %libsources)
2332 {
2333 if ($iter =~ /\.[cly]$/)
2334 {
2335 &saw_extension ($&);
2336 &saw_extension ('.c');
2337 }
2339 if ($iter =~ /\.h$/)
2340 {
2341 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2342 }
2343 elsif ($iter ne 'alloca.c')
2344 {
2345 my $rewrite = $iter;
2346 $rewrite =~ s/\.c$/.P$myobjext/;
2347 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2348 $rewrite = "^" . quotemeta ($iter) . "\$";
2349 # Only require the file if it is not a built source.
2350 my $bs = var ('BUILT_SOURCES');
2351 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2352 {
2353 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2354 }
2355 }
2356 }
2357 }
2359 sub handle_ALLOCA ($$$)
2360 {
2361 my ($var, $cond, $lt) = @_;
2362 my $myobjext = $lt ? 'lo' : 'o';
2363 $lt ||= '';
2364 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2366 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2367 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2368 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2369 &saw_extension ('.c');
2370 }
2372 # Canonicalize the input parameter
2373 sub canonicalize
2374 {
2375 my ($string) = @_;
2376 $string =~ tr/A-Za-z0-9_\@/_/c;
2377 return $string;
2378 }
2380 # Canonicalize a name, and check to make sure the non-canonical name
2381 # is never used. Returns canonical name. Arguments are name and a
2382 # list of suffixes to check for.
2383 sub check_canonical_spelling
2384 {
2385 my ($name, @suffixes) = @_;
2387 my $xname = &canonicalize ($name);
2388 if ($xname ne $name)
2389 {
2390 foreach my $xt (@suffixes)
2391 {
2392 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2393 }
2394 }
2396 return $xname;
2397 }
2400 # handle_compile ()
2401 # -----------------
2402 # Set up the compile suite.
2403 sub handle_compile ()
2404 {
2405 return if ! $must_handle_compiled_objects;
2407 # Boilerplate.
2408 my $default_includes = '';
2409 if (! option 'nostdinc')
2410 {
2411 my @incs = ('-I.', subst ('am__isrc'));
2413 my $var = var 'CONFIG_HEADER';
2414 if ($var)
2415 {
2416 foreach my $hdr (split (' ', $var->variable_value))
2417 {
2418 push @incs, '-I' . dirname ($hdr);
2419 }
2420 }
2421 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2422 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2423 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2424 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2425 # to just put @am__isrc@ right after '-I.', without a space.
2426 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2427 }
2429 my (@mostly_rms, @dist_rms);
2430 foreach my $item (sort keys %compile_clean_files)
2431 {
2432 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2433 {
2434 push (@mostly_rms, "\t-rm -f $item");
2435 }
2436 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2437 {
2438 push (@dist_rms, "\t-rm -f $item");
2439 }
2440 else
2441 {
2442 prog_error 'invalid entry in %compile_clean_files';
2443 }
2444 }
2446 my ($coms, $vars, $rules) =
2447 &file_contents_internal (1, "$libdir/am/compile.am",
2448 new Automake::Location,
2449 ('DEFAULT_INCLUDES' => $default_includes,
2450 'MOSTLYRMS' => join ("\n", @mostly_rms),
2451 'DISTRMS' => join ("\n", @dist_rms)));
2452 $output_vars .= $vars;
2453 $output_rules .= "$coms$rules";
2454 }
2456 # handle_libtool ()
2457 # -----------------
2458 # Handle libtool rules.
2459 sub handle_libtool
2460 {
2461 return unless var ('LIBTOOL');
2463 # Libtool requires some files, but only at top level.
2464 # (Starting with Libtool 2.0 we do not have to bother. These
2465 # requirements are done with AC_REQUIRE_AUX_FILE.)
2466 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2467 if $relative_dir eq '.' && ! $libtool_new_api;
2469 my @libtool_rms;
2470 foreach my $item (sort keys %libtool_clean_directories)
2471 {
2472 my $dir = ($item eq '.') ? '' : "$item/";
2473 # .libs is for Unix, _libs for DOS.
2474 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2475 }
2477 check_user_variables 'LIBTOOLFLAGS';
2479 # Output the libtool compilation rules.
2480 $output_rules .= &file_contents ('libtool',
2481 new Automake::Location,
2482 LTRMS => join ("\n", @libtool_rms));
2483 }
2485 # handle_programs ()
2486 # ------------------
2487 # Handle C programs.
2488 sub handle_programs
2489 {
2490 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2491 'bin', 'sbin', 'libexec', 'pkglibexec',
2492 'noinst', 'check');
2493 return if ! @proglist;
2494 $must_handle_compiled_objects = 1;
2496 my $seen_global_libobjs =
2497 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2499 foreach my $pair (@proglist)
2500 {
2501 my ($where, $one_file) = @$pair;
2503 my $seen_libobjs = 0;
2504 my $obj = '.$(OBJEXT)';
2506 $known_programs{$one_file} = $where;
2508 # Canonicalize names and check for misspellings.
2509 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2510 '_SOURCES', '_OBJECTS',
2511 '_DEPENDENCIES');
2513 $where->push_context ("while processing program '$one_file'");
2514 $where->set (INTERNAL->get);
2516 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2517 NONLIBTOOL => 1, LIBTOOL => 0);
2519 if (var ($xname . "_LDADD"))
2520 {
2521 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2522 }
2523 else
2524 {
2525 # User didn't define prog_LDADD override. So do it.
2526 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2528 # This does a bit too much work. But we need it to
2529 # generate _DEPENDENCIES when appropriate.
2530 if (var ('LDADD'))
2531 {
2532 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2533 }
2534 }
2536 reject_var ($xname . '_LIBADD',
2537 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2539 set_seen ($xname . '_DEPENDENCIES');
2540 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2541 set_seen ($xname . '_LDFLAGS');
2543 # Determine program to use for link.
2544 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2545 $vlink = verbose_flag ($vlink || 'GEN');
2547 # If the resulting program lies into a subdirectory,
2548 # make sure this directory will exist.
2549 my $dirstamp = require_build_directory_maybe ($one_file);
2551 $libtool_clean_directories{dirname ($one_file)} = 1;
2553 $output_rules .= &file_contents ('program',
2554 $where,
2555 PROGRAM => $one_file,
2556 XPROGRAM => $xname,
2557 XLINK => $xlink,
2558 VERBOSE => $vlink,
2559 DIRSTAMP => $dirstamp,
2560 EXEEXT => '$(EXEEXT)');
2562 if ($seen_libobjs || $seen_global_libobjs)
2563 {
2564 if (var ($xname . '_LDADD'))
2565 {
2566 &check_libobjs_sources ($xname, $xname . '_LDADD');
2567 }
2568 elsif (var ('LDADD'))
2569 {
2570 &check_libobjs_sources ($xname, 'LDADD');
2571 }
2572 }
2573 }
2574 }
2577 # handle_libraries ()
2578 # -------------------
2579 # Handle libraries.
2580 sub handle_libraries
2581 {
2582 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2583 'lib', 'pkglib', 'noinst', 'check');
2584 return if ! @liblist;
2585 $must_handle_compiled_objects = 1;
2587 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2588 'noinst', 'check');
2590 if (@prefix)
2591 {
2592 my $var = rvar ($prefix[0] . '_LIBRARIES');
2593 $var->requires_variables ('library used', 'RANLIB');
2594 }
2596 &define_variable ('AR', 'ar', INTERNAL);
2597 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2598 &define_verbose_tagvar ('AR');
2600 foreach my $pair (@liblist)
2601 {
2602 my ($where, $onelib) = @$pair;
2604 my $seen_libobjs = 0;
2605 # Check that the library fits the standard naming convention.
2606 my $bn = basename ($onelib);
2607 if ($bn !~ /^lib.*\.a$/)
2608 {
2609 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2610 my $suggestion = dirname ($onelib) . "/$bn";
2611 $suggestion =~ s|^\./||g;
2612 msg ('error-gnu/warn', $where,
2613 "'$onelib' is not a standard library name\n"
2614 . "did you mean '$suggestion'?")
2615 }
2617 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2619 $where->push_context ("while processing library '$onelib'");
2620 $where->set (INTERNAL->get);
2622 my $obj = '.$(OBJEXT)';
2624 # Canonicalize names and check for misspellings.
2625 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2626 '_OBJECTS', '_DEPENDENCIES',
2627 '_AR');
2629 if (! var ($xlib . '_AR'))
2630 {
2631 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2632 }
2634 # Generate support for conditional object inclusion in
2635 # libraries.
2636 if (var ($xlib . '_LIBADD'))
2637 {
2638 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2639 {
2640 $seen_libobjs = 1;
2641 }
2642 }
2643 else
2644 {
2645 &define_variable ($xlib . "_LIBADD", '', $where);
2646 }
2648 reject_var ($xlib . '_LDADD',
2649 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2651 # Make sure we at look at this.
2652 set_seen ($xlib . '_DEPENDENCIES');
2653 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2655 &handle_source_transform ($xlib, $onelib, $obj, $where,
2656 NONLIBTOOL => 1, LIBTOOL => 0);
2658 # If the resulting library lies into a subdirectory,
2659 # make sure this directory will exist.
2660 my $dirstamp = require_build_directory_maybe ($onelib);
2661 my $verbose = verbose_flag ('AR');
2662 my $silent = silent_flag ();
2664 $output_rules .= &file_contents ('library',
2665 $where,
2666 VERBOSE => $verbose,
2667 SILENT => $silent,
2668 LIBRARY => $onelib,
2669 XLIBRARY => $xlib,
2670 DIRSTAMP => $dirstamp);
2672 if ($seen_libobjs)
2673 {
2674 if (var ($xlib . '_LIBADD'))
2675 {
2676 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2677 }
2678 }
2680 if (! $seen_ar)
2681 {
2682 msg ('extra-portability', $where,
2683 "'$onelib': linking libraries using a non-POSIX\n"
2684 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2685 }
2686 }
2687 }
2690 # handle_ltlibraries ()
2691 # ---------------------
2692 # Handle shared libraries.
2693 sub handle_ltlibraries
2694 {
2695 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2696 'noinst', 'lib', 'pkglib', 'check');
2697 return if ! @liblist;
2698 $must_handle_compiled_objects = 1;
2700 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2701 'noinst', 'check');
2703 if (@prefix)
2704 {
2705 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2706 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2707 }
2709 my %instdirs = ();
2710 my %instsubdirs = ();
2711 my %instconds = ();
2712 my %liblocations = (); # Location (in Makefile.am) of each library.
2714 foreach my $key (@prefix)
2715 {
2716 # Get the installation directory of each library.
2717 my $dir = $key;
2718 my $strip_subdir = 1;
2719 if ($dir =~ /^nobase_/)
2720 {
2721 $dir =~ s/^nobase_//;
2722 $strip_subdir = 0;
2723 }
2724 my $var = rvar ($key . '_LTLIBRARIES');
2726 # We reject libraries which are installed in several places
2727 # in the same condition, because we can only specify one
2728 # '-rpath' option.
2729 $var->traverse_recursively
2730 (sub
2731 {
2732 my ($var, $val, $cond, $full_cond) = @_;
2733 my $hcond = $full_cond->human;
2734 my $where = $var->rdef ($cond)->location;
2735 my $ldir = '';
2736 $ldir = '/' . dirname ($val)
2737 if (!$strip_subdir);
2738 # A library cannot be installed in different directories
2739 # in overlapping conditions.
2740 if (exists $instconds{$val})
2741 {
2742 my ($msg, $acond) =
2743 $instconds{$val}->ambiguous_p ($val, $full_cond);
2745 if ($msg)
2746 {
2747 error ($where, $msg, partial => 1);
2748 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2749 $dirtxt = "built for '$dir'"
2750 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2751 my $dircond =
2752 $full_cond->true ? "" : " in condition $hcond";
2754 error ($where, "'$val' should be $dirtxt$dircond ...",
2755 partial => 1);
2757 my $hacond = $acond->human;
2758 my $adir = $instdirs{$val}{$acond};
2759 my $adirtxt = "installed in '$adir'";
2760 $adirtxt = "built for '$adir'"
2761 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2762 || $adir eq 'check');
2763 my $adircond = $acond->true ? "" : " in condition $hacond";
2765 my $onlyone = ($dir ne $adir) ?
2766 ("\nLibtool libraries can be built for only one "
2767 . "destination") : "";
2769 error ($liblocations{$val}{$acond},
2770 "... and should also be $adirtxt$adircond.$onlyone");
2771 return;
2772 }
2773 }
2774 else
2775 {
2776 $instconds{$val} = new Automake::DisjConditions;
2777 }
2778 $instdirs{$val}{$full_cond} = $dir;
2779 $instsubdirs{$val}{$full_cond} = $ldir;
2780 $liblocations{$val}{$full_cond} = $where;
2781 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2782 },
2783 sub
2784 {
2785 return ();
2786 },
2787 skip_ac_subst => 1);
2788 }
2790 foreach my $pair (@liblist)
2791 {
2792 my ($where, $onelib) = @$pair;
2794 my $seen_libobjs = 0;
2795 my $obj = '.lo';
2797 # Canonicalize names and check for misspellings.
2798 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2799 '_SOURCES', '_OBJECTS',
2800 '_DEPENDENCIES');
2802 # Check that the library fits the standard naming convention.
2803 my $libname_rx = '^lib.*\.la';
2804 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2805 my $ldvar2 = var ('LDFLAGS');
2806 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2807 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2808 {
2809 # Relax name checking for libtool modules.
2810 $libname_rx = '\.la';
2811 }
2813 my $bn = basename ($onelib);
2814 if ($bn !~ /$libname_rx$/)
2815 {
2816 my $type = 'library';
2817 if ($libname_rx eq '\.la')
2818 {
2819 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2820 $type = 'module';
2821 }
2822 else
2823 {
2824 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2825 }
2826 my $suggestion = dirname ($onelib) . "/$bn";
2827 $suggestion =~ s|^\./||g;
2828 msg ('error-gnu/warn', $where,
2829 "'$onelib' is not a standard libtool $type name\n"
2830 . "did you mean '$suggestion'?")
2831 }
2833 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2835 $where->push_context ("while processing Libtool library '$onelib'");
2836 $where->set (INTERNAL->get);
2838 # Make sure we look at these.
2839 set_seen ($xlib . '_LDFLAGS');
2840 set_seen ($xlib . '_DEPENDENCIES');
2841 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2843 # Generate support for conditional object inclusion in
2844 # libraries.
2845 if (var ($xlib . '_LIBADD'))
2846 {
2847 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2848 {
2849 $seen_libobjs = 1;
2850 }
2851 }
2852 else
2853 {
2854 &define_variable ($xlib . "_LIBADD", '', $where);
2855 }
2857 reject_var ("${xlib}_LDADD",
2858 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2861 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2862 NONLIBTOOL => 0, LIBTOOL => 1);
2864 # Determine program to use for link.
2865 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2866 $vlink = verbose_flag ($vlink || 'GEN');
2868 my $rpathvar = "am_${xlib}_rpath";
2869 my $rpath = "\$($rpathvar)";
2870 foreach my $rcond ($instconds{$onelib}->conds)
2871 {
2872 my $val;
2873 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2874 || $instdirs{$onelib}{$rcond} eq 'noinst'
2875 || $instdirs{$onelib}{$rcond} eq 'check')
2876 {
2877 # It's an EXTRA_ library, so we can't specify -rpath,
2878 # because we don't know where the library will end up.
2879 # The user probably knows, but generally speaking automake
2880 # doesn't -- and in fact configure could decide
2881 # dynamically between two different locations.
2882 $val = '';
2883 }
2884 else
2885 {
2886 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2887 $val .= $instsubdirs{$onelib}{$rcond}
2888 if defined $instsubdirs{$onelib}{$rcond};
2889 }
2890 if ($rcond->true)
2891 {
2892 # If $rcond is true there is only one condition and
2893 # there is no point defining an helper variable.
2894 $rpath = $val;
2895 }
2896 else
2897 {
2898 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2899 }
2900 }
2902 # If the resulting library lies into a subdirectory,
2903 # make sure this directory will exist.
2904 my $dirstamp = require_build_directory_maybe ($onelib);
2906 # Remember to cleanup .libs/ in this directory.
2907 my $dirname = dirname $onelib;
2908 $libtool_clean_directories{$dirname} = 1;
2910 $output_rules .= &file_contents ('ltlibrary',
2911 $where,
2912 LTLIBRARY => $onelib,
2913 XLTLIBRARY => $xlib,
2914 RPATH => $rpath,
2915 XLINK => $xlink,
2916 VERBOSE => $vlink,
2917 DIRSTAMP => $dirstamp);
2918 if ($seen_libobjs)
2919 {
2920 if (var ($xlib . '_LIBADD'))
2921 {
2922 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2923 }
2924 }
2926 if (! $seen_ar)
2927 {
2928 msg ('extra-portability', $where,
2929 "'$onelib': linking libtool libraries using a non-POSIX\n"
2930 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2931 }
2932 }
2933 }
2935 # See if any _SOURCES variable were misspelled.
2936 sub check_typos ()
2937 {
2938 # It is ok if the user sets this particular variable.
2939 set_seen 'AM_LDFLAGS';
2941 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2942 {
2943 foreach my $var (variables $primary)
2944 {
2945 my $varname = $var->name;
2946 # A configure variable is always legitimate.
2947 next if exists $configure_vars{$varname};
2949 for my $cond ($var->conditions->conds)
2950 {
2951 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2952 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2953 . " program or\nlibrary has '$1' as canonical name"
2954 . " (possible typo)")
2955 unless $var->rdef ($cond)->seen;
2956 }
2957 }
2958 }
2959 }
2962 # Handle scripts.
2963 sub handle_scripts
2964 {
2965 # NOTE we no longer automatically clean SCRIPTS, because it is
2966 # useful to sometimes distribute scripts verbatim. This happens
2967 # e.g. in Automake itself.
2968 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2969 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2970 'noinst', 'check');
2971 }
2976 ## ------------------------ ##
2977 ## Handling Texinfo files. ##
2978 ## ------------------------ ##
2980 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2981 # &scan_texinfo_file ($FILENAME)
2982 # ------------------------------
2983 # $OUTFILE - name of the info file produced by $FILENAME.
2984 # $VFILE - name of the version.texi file used (undef if none).
2985 # @CLEAN_FILES - list of byproducts (indexes etc.)
2986 sub scan_texinfo_file ($)
2987 {
2988 my ($filename) = @_;
2990 # Some of the following extensions are always created, no matter
2991 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2992 # are only created when they are used. We used to scan $FILENAME
2993 # for their use, but that is not enough: they could be used in
2994 # included files. We can't scan included files because we don't
2995 # know the include path. Therefore we always erase these files, no
2996 # matter whether they are used or not.
2997 #
2998 # (tmp is only created if an @macro is used and a certain e-TeX
2999 # feature is not available.)
3000 my %clean_suffixes =
3001 map { $_ => 1 } (qw(aux log toc tmp
3002 cp cps
3003 fn fns
3004 ky kys
3005 vr vrs
3006 tp tps
3007 pg pgs)); # grep 'new.*index' texinfo.tex
3009 my $texi = new Automake::XFile "< $filename";
3010 verb "reading $filename";
3012 my ($outfile, $vfile);
3013 while ($_ = $texi->getline)
3014 {
3015 if (/^\@setfilename +(\S+)/)
3016 {
3017 # Honor only the first @setfilename. (It's possible to have
3018 # more occurrences later if the manual shows examples of how
3019 # to use @setfilename...)
3020 next if $outfile;
3022 $outfile = $1;
3023 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3024 {
3025 error ("$filename:$.",
3026 "output '$outfile' has unrecognized extension");
3027 return;
3028 }
3029 }
3030 # A "version.texi" file is actually any file whose name matches
3031 # "vers*.texi".
3032 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3033 {
3034 $vfile = $1;
3035 }
3037 # Try to find new or unused indexes.
3039 # Creating a new category of index.
3040 elsif (/^\@def(code)?index (\w+)/)
3041 {
3042 $clean_suffixes{$2} = 1;
3043 $clean_suffixes{"$2s"} = 1;
3044 }
3046 # Merging an index into an another.
3047 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3048 {
3049 delete $clean_suffixes{"$2s"};
3050 $clean_suffixes{"$3s"} = 1;
3051 }
3053 }
3055 if (! $outfile)
3056 {
3057 err_am "'$filename' missing \@setfilename";
3058 return;
3059 }
3061 my $infobase = basename ($filename);
3062 $infobase =~ s/\.te?xi(nfo)?$//;
3063 return ($outfile, $vfile,
3064 map { "$infobase.$_" } (sort keys %clean_suffixes));
3065 }
3068 # ($DIRSTAMP, @CLEAN_FILES)
3069 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3070 # ------------------------------------------------------------------
3071 # SOURCE - the source Texinfo file
3072 # DEST - the destination Info file
3073 # INSRC - whether DEST should be built in the source tree
3074 # DEPENDENCIES - known dependencies
3075 sub output_texinfo_build_rules ($$$@)
3076 {
3077 my ($source, $dest, $insrc, @deps) = @_;
3079 # Split 'a.texi' into 'a' and '.texi'.
3080 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3081 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3083 $ssfx ||= "";
3084 $dsfx ||= "";
3086 # We can output two kinds of rules: the "generic" rules use Make
3087 # suffix rules and are appropriate when $source and $dest do not lie
3088 # in a sub-directory; the "specific" rules are needed in the other
3089 # case.
3090 #
3091 # The former are output only once (this is not really apparent here,
3092 # but just remember that some logic deeper in Automake will not
3093 # output the same rule twice); while the later need to be output for
3094 # each Texinfo source.
3095 my $generic;
3096 my $makeinfoflags;
3097 my $sdir = dirname $source;
3098 if ($sdir eq '.' && dirname ($dest) eq '.')
3099 {
3100 $generic = 1;
3101 $makeinfoflags = '-I $(srcdir)';
3102 }
3103 else
3104 {
3105 $generic = 0;
3106 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3107 }
3109 # A directory can contain two kinds of info files: some built in the
3110 # source tree, and some built in the build tree. The rules are
3111 # different in each case. However we cannot output two different
3112 # set of generic rules. Because in-source builds are more usual, we
3113 # use generic rules in this case and fall back to "specific" rules
3114 # for build-dir builds. (It should not be a problem to invert this
3115 # if needed.)
3116 $generic = 0 unless $insrc;
3118 # We cannot use a suffix rule to build info files with an empty
3119 # extension. Otherwise we would output a single suffix inference
3120 # rule, with separate dependencies, as in
3121 #
3122 # .texi:
3123 # $(MAKEINFO) ...
3124 # foo.info: foo.texi
3125 #
3126 # which confuse Solaris make. (See the Autoconf manual for
3127 # details.) Therefore we use a specific rule in this case. This
3128 # applies to info files only (dvi and pdf files always have an
3129 # extension).
3130 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3132 # If the resulting file lie into a subdirectory,
3133 # make sure this directory will exist.
3134 my $dirstamp = require_build_directory_maybe ($dest);
3136 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3138 $output_rules .= file_contents ('texibuild',
3139 new Automake::Location,
3140 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3141 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3142 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3143 DEPS => "@deps",
3144 DEST_PREFIX => $dpfx,
3145 DEST_INFO_PREFIX => $dipfx,
3146 DEST_SUFFIX => $dsfx,
3147 DIRSTAMP => $dirstamp,
3148 GENERIC => $generic,
3149 GENERIC_INFO => $generic_info,
3150 INSRC => $insrc,
3151 MAKEINFOFLAGS => $makeinfoflags,
3152 SILENT => silent_flag(),
3153 SOURCE => ($generic
3154 ? '$<' : $source),
3155 SOURCE_INFO => ($generic_info
3156 ? '$<' : $source),
3157 SOURCE_REAL => $source,
3158 SOURCE_SUFFIX => $ssfx,
3159 TEXIQUIET => verbose_flag('texinfo'),
3160 TEXIDEVNULL => verbose_flag('texidevnull'),
3161 );
3162 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3163 }
3166 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3167 # handle_texinfo_helper ($info_texinfos)
3168 # --------------------------------------
3169 # Handle all Texinfo source; helper for handle_texinfo.
3170 sub handle_texinfo_helper ($)
3171 {
3172 my ($info_texinfos) = @_;
3173 my (@infobase, @info_deps_list, @texi_deps);
3174 my %versions;
3175 my $done = 0;
3176 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3178 # Build a regex matching user-cleaned files.
3179 my $d = var 'DISTCLEANFILES';
3180 my $c = var 'CLEANFILES';
3181 my @f = ();
3182 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3183 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3184 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3185 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3187 foreach my $texi
3188 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3189 {
3190 my $infobase = $texi;
3191 $infobase =~ s/\.(txi|texinfo|texi)$//;
3193 if ($infobase eq $texi)
3194 {
3195 # FIXME: report line number.
3196 err_am "texinfo file '$texi' has unrecognized extension";
3197 next;
3198 }
3200 push @infobase, $infobase;
3202 # If 'version.texi' is referenced by input file, then include
3203 # automatic versioning capability.
3204 my ($out_file, $vtexi, @clean_files) =
3205 scan_texinfo_file ("$relative_dir/$texi")
3206 or next;
3207 push (@mostly_cleans, @clean_files);
3209 # If the Texinfo source is in a subdirectory, create the
3210 # resulting info in this subdirectory. If it is in the current
3211 # directory, try hard to not prefix "./" because it breaks the
3212 # generic rules.
3213 my $outdir = dirname ($texi) . '/';
3214 $outdir = "" if $outdir eq './';
3215 $out_file = $outdir . $out_file;
3217 # Until Automake 1.6.3, .info files were built in the
3218 # source tree. This was an obstacle to the support of
3219 # non-distributed .info files, and non-distributed .texi
3220 # files.
3221 #
3222 # * Non-distributed .texi files is important in some packages
3223 # where .texi files are built at make time, probably using
3224 # other binaries built in the package itself, maybe using
3225 # tools or information found on the build host. Because
3226 # these files are not distributed they are always rebuilt
3227 # at make time; they should therefore not lie in the source
3228 # directory. One plan was to support this using
3229 # nodist_info_TEXINFOS or something similar. (Doing this
3230 # requires some sanity checks. For instance Automake should
3231 # not allow:
3232 # dist_info_TEXINFOS = foo.texi
3233 # nodist_foo_TEXINFOS = included.texi
3234 # because a distributed file should never depend on a
3235 # non-distributed file.)
3236 #
3237 # * If .texi files are not distributed, then .info files should
3238 # not be distributed either. There are also cases where one
3239 # wants to distribute .texi files, but does not want to
3240 # distribute the .info files. For instance the Texinfo package
3241 # distributes the tool used to build these files; it would
3242 # be a waste of space to distribute them. It's not clear
3243 # which syntax we should use to indicate that .info files should
3244 # not be distributed. Akim Demaille suggested that eventually
3245 # we switch to a new syntax:
3246 # | Maybe we should take some inspiration from what's already
3247 # | done in the rest of Automake. Maybe there is too much
3248 # | syntactic sugar here, and you want
3249 # | nodist_INFO = bar.info
3250 # | dist_bar_info_SOURCES = bar.texi
3251 # | bar_texi_DEPENDENCIES = foo.texi
3252 # | with a bit of magic to have bar.info represent the whole
3253 # | bar*info set. That's a lot more verbose that the current
3254 # | situation, but it is # not new, hence the user has less
3255 # | to learn.
3256 # |
3257 # | But there is still too much room for meaningless specs:
3258 # | nodist_INFO = bar.info
3259 # | dist_bar_info_SOURCES = bar.texi
3260 # | dist_PS = bar.ps something-written-by-hand.ps
3261 # | nodist_bar_ps_SOURCES = bar.texi
3262 # | bar_texi_DEPENDENCIES = foo.texi
3263 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3264 #
3265 # Back to the point, it should be clear that in order to support
3266 # non-distributed .info files, we need to build them in the
3267 # build tree, not in the source tree (non-distributed .texi
3268 # files are less of a problem, because we do not output build
3269 # rules for them). In Automake 1.7 .info build rules have been
3270 # largely cleaned up so that .info files get always build in the
3271 # build tree, even when distributed. The idea was that
3272 # (1) if during a VPATH build the .info file was found to be
3273 # absent or out-of-date (in the source tree or in the
3274 # build tree), Make would rebuild it in the build tree.
3275 # If an up-to-date source-tree of the .info file existed,
3276 # make would not rebuild it in the build tree.
3277 # (2) having two copies of .info files, one in the source tree
3278 # and one (newer) in the build tree is not a problem
3279 # because 'make dist' always pick files in the build tree
3280 # first.
3281 # However it turned out the be a bad idea for several reasons:
3282 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3283 # like GNU Make on point (1) above. These implementations
3284 # of Make would always rebuild .info files in the build
3285 # tree, even if such files were up to date in the source
3286 # tree. Consequently, it was impossible to perform a VPATH
3287 # build of a package containing Texinfo files using these
3288 # Make implementations.
3289 # (Refer to the Autoconf Manual, section "Limitation of
3290 # Make", paragraph "VPATH", item "target lookup", for
3291 # an account of the differences between these
3292 # implementations.)
3293 # * The GNU Coding Standards require these files to be built
3294 # in the source-tree (when they are distributed, that is).
3295 # * Keeping a fresher copy of distributed files in the
3296 # build tree can be annoying during development because
3297 # - if the files is kept under CVS, you really want it
3298 # to be updated in the source tree
3299 # - it is confusing that 'make distclean' does not erase
3300 # all files in the build tree.
3301 #
3302 # Consequently, starting with Automake 1.8, .info files are
3303 # built in the source tree again. Because we still plan to
3304 # support non-distributed .info files at some point, we
3305 # have a single variable ($INSRC) that controls whether
3306 # the current .info file must be built in the source tree
3307 # or in the build tree. Actually this variable is switched
3308 # off for .info files that appear to be cleaned; this is
3309 # for backward compatibility with package such as Texinfo,
3310 # which do things like
3311 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3312 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3313 # # Do not create info files for distribution.
3314 # dist-info:
3315 # in order not to distribute .info files.
3316 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3318 my $soutdir = '$(srcdir)/' . $outdir;
3319 $outdir = $soutdir if $insrc;
3321 # If user specified file_TEXINFOS, then use that as explicit
3322 # dependency list.
3323 @texi_deps = ();
3324 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3326 my $canonical = canonicalize ($infobase);
3327 if (var ($canonical . "_TEXINFOS"))
3328 {
3329 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3330 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3331 }
3333 my ($dirstamp, @cfiles) =
3334 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3335 push (@texi_cleans, @cfiles);
3337 push (@info_deps_list, $out_file);
3339 # If a vers*.texi file is needed, emit the rule.
3340 if ($vtexi)
3341 {
3342 err_am ("'$vtexi', included in '$texi', "
3343 . "also included in '$versions{$vtexi}'")
3344 if defined $versions{$vtexi};
3345 $versions{$vtexi} = $texi;
3347 # We number the stamp-vti files. This is doable since the
3348 # actual names don't matter much. We only number starting
3349 # with the second one, so that the common case looks nice.
3350 my $vti = ($done ? $done : 'vti');
3351 ++$done;
3353 # This is ugly, but it is our historical practice.
3354 if ($config_aux_dir_set_in_configure_ac)
3355 {
3356 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3357 'mdate-sh');
3358 }
3359 else
3360 {
3361 require_file_with_macro (TRUE, 'info_TEXINFOS',
3362 FOREIGN, 'mdate-sh');
3363 }
3365 my $conf_dir;
3366 if ($config_aux_dir_set_in_configure_ac)
3367 {
3368 $conf_dir = "$am_config_aux_dir/";
3369 }
3370 else
3371 {
3372 $conf_dir = '$(srcdir)/';
3373 }
3374 $output_rules .= file_contents ('texi-vers',
3375 new Automake::Location,
3376 TEXI => $texi,
3377 VTI => $vti,
3378 STAMPVTI => "${soutdir}stamp-$vti",
3379 VTEXI => "$soutdir$vtexi",
3380 MDDIR => $conf_dir,
3381 DIRSTAMP => $dirstamp);
3382 }
3383 }
3385 # Handle location of texinfo.tex.
3386 my $need_texi_file = 0;
3387 my $texinfodir;
3388 if (var ('TEXINFO_TEX'))
3389 {
3390 # The user defined TEXINFO_TEX so assume he knows what he is
3391 # doing.
3392 $texinfodir = ('$(srcdir)/'
3393 . dirname (variable_value ('TEXINFO_TEX')));
3394 }
3395 elsif (option 'cygnus')
3396 {
3397 $texinfodir = '$(top_srcdir)/../texinfo';
3398 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3399 }
3400 elsif ($config_aux_dir_set_in_configure_ac)
3401 {
3402 $texinfodir = $am_config_aux_dir;
3403 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3404 $need_texi_file = 2; # so that we require_conf_file later
3405 }
3406 else
3407 {
3408 $texinfodir = '$(srcdir)';
3409 $need_texi_file = 1;
3410 }
3411 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3413 push (@dist_targets, 'dist-info');
3415 if (! option 'no-installinfo')
3416 {
3417 # Make sure documentation is made and installed first. Use
3418 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3419 # get run twice during "make all".
3420 unshift (@all, '$(INFO_DEPS)');
3421 }
3423 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3424 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3425 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3426 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3428 # This next isn't strictly needed now -- the places that look here
3429 # could easily be changed to look in info_TEXINFOS. But this is
3430 # probably better, in case noinst_TEXINFOS is ever supported.
3431 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3433 # Do some error checking. Note that this file is not required
3434 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3435 # up above.
3436 if ($need_texi_file && ! option 'no-texinfo.tex')
3437 {
3438 if ($need_texi_file > 1)
3439 {
3440 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3441 'texinfo.tex');
3442 }
3443 else
3444 {
3445 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3446 'texinfo.tex');
3447 }
3448 }
3450 return (makefile_wrap ("", "\t ", @mostly_cleans),
3451 makefile_wrap ("", "\t ", @texi_cleans),
3452 makefile_wrap ("", "\t ", @maint_cleans));
3453 }
3456 # handle_texinfo ()
3457 # -----------------
3458 # Handle all Texinfo source.
3459 sub handle_texinfo ()
3460 {
3461 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3462 # FIXME: I think this is an obsolete future feature name.
3463 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3465 my $info_texinfos = var ('info_TEXINFOS');
3466 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3467 if ($info_texinfos)
3468 {
3469 define_verbose_texinfo;
3470 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3471 chomp $mostlyclean;
3472 chomp $clean;
3473 chomp $maintclean;
3474 }
3476 $output_rules .= file_contents ('texinfos',
3477 new Automake::Location,
3478 AM_V_DVIPS => verbose_flag('DVIPS'),
3479 MOSTLYCLEAN => $mostlyclean,
3480 TEXICLEAN => $clean,
3481 MAINTCLEAN => $maintclean,
3482 'LOCAL-TEXIS' => !!$info_texinfos,
3483 TEXIQUIET => verbose_flag('texinfo'));
3484 }
3487 # Handle any man pages.
3488 sub handle_man_pages
3489 {
3490 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3492 # Find all the sections in use. We do this by first looking for
3493 # "standard" sections, and then looking for any additional
3494 # sections used in man_MANS.
3495 my (%sections, %notrans_sections, %trans_sections,
3496 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3497 # We handle nodist_ for uniformity. man pages aren't distributed
3498 # by default so it isn't actually very important.
3499 foreach my $npfx ('', 'notrans_')
3500 {
3501 foreach my $pfx ('', 'dist_', 'nodist_')
3502 {
3503 # Add more sections as needed.
3504 foreach my $section ('0'..'9', 'n', 'l')
3505 {
3506 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3507 if (var ($varname))
3508 {
3509 $sections{$section} = 1;
3510 $varname = '$(' . $varname . ')';
3511 if ($npfx eq 'notrans_')
3512 {
3513 $notrans_sections{$section} = 1;
3514 $notrans_sect_vars{$varname} = 1;
3515 }
3516 else
3517 {
3518 $trans_sections{$section} = 1;
3519 $trans_sect_vars{$varname} = 1;
3520 }
3522 &push_dist_common ($varname)
3523 if $pfx eq 'dist_';
3524 }
3525 }
3527 my $varname = $npfx . $pfx . 'man_MANS';
3528 my $var = var ($varname);
3529 if ($var)
3530 {
3531 foreach ($var->value_as_list_recursive)
3532 {
3533 # A page like 'foo.1c' goes into man1dir.
3534 if (/\.([0-9a-z])([a-z]*)$/)
3535 {
3536 $sections{$1} = 1;
3537 if ($npfx eq 'notrans_')
3538 {
3539 $notrans_sections{$1} = 1;
3540 }
3541 else
3542 {
3543 $trans_sections{$1} = 1;
3544 }
3545 }
3546 }
3548 $varname = '$(' . $varname . ')';
3549 if ($npfx eq 'notrans_')
3550 {
3551 $notrans_vars{$varname} = 1;
3552 }
3553 else
3554 {
3555 $trans_vars{$varname} = 1;
3556 }
3557 &push_dist_common ($varname)
3558 if $pfx eq 'dist_';
3559 }
3560 }
3561 }
3563 return unless %sections;
3565 my @unsorted_deps;
3567 # Build section independent variables.
3568 my $have_notrans = %notrans_vars;
3569 my @notrans_list = sort keys %notrans_vars;
3570 my $have_trans = %trans_vars;
3571 my @trans_list = sort keys %trans_vars;
3573 # Now for each section, generate an install and uninstall rule.
3574 # Sort sections so output is deterministic.
3575 foreach my $section (sort keys %sections)
3576 {
3577 # Build section dependent variables.
3578 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3579 my $trans_mans = $have_trans || exists $trans_sections{$section};
3580 my (%notrans_this_sect, %trans_this_sect);
3581 my $expr = 'man' . $section . '_MANS';
3582 foreach my $varname (keys %notrans_sect_vars)
3583 {
3584 if ($varname =~ /$expr/)
3585 {
3586 $notrans_this_sect{$varname} = 1;
3587 }
3588 }
3589 foreach my $varname (keys %trans_sect_vars)
3590 {
3591 if ($varname =~ /$expr/)
3592 {
3593 $trans_this_sect{$varname} = 1;
3594 }
3595 }
3596 my @notrans_sect_list = sort keys %notrans_this_sect;
3597 my @trans_sect_list = sort keys %trans_this_sect;
3598 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3599 keys %notrans_this_sect, keys %trans_this_sect);
3600 my @deps = sort @unsorted_deps;
3601 $output_rules .= &file_contents ('mans',
3602 new Automake::Location,
3603 SECTION => $section,
3604 DEPS => "@deps",
3605 NOTRANS_MANS => $notrans_mans,
3606 NOTRANS_SECT_LIST => "@notrans_sect_list",
3607 HAVE_NOTRANS => $have_notrans,
3608 NOTRANS_LIST => "@notrans_list",
3609 TRANS_MANS => $trans_mans,
3610 TRANS_SECT_LIST => "@trans_sect_list",
3611 HAVE_TRANS => $have_trans,
3612 TRANS_LIST => "@trans_list");
3613 }
3615 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3616 keys %notrans_sect_vars, keys %trans_sect_vars);
3617 my @mans = sort @unsorted_deps;
3618 $output_vars .= file_contents ('mans-vars',
3619 new Automake::Location,
3620 MANS => "@mans");
3622 push (@all, '$(MANS)')
3623 unless option 'no-installman';
3624 }
3626 # Handle DATA variables.
3627 sub handle_data
3628 {
3629 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3630 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3631 'ps', 'sysconf', 'sharedstate', 'localstate',
3632 'pkgdata', 'lisp', 'noinst', 'check');
3633 }
3635 # Handle TAGS.
3636 sub handle_tags
3637 {
3638 my @tag_deps = ();
3639 my @ctag_deps = ();
3640 my @cscope_deps = ();
3641 if (var ('SUBDIRS'))
3642 {
3643 $output_rules .= ("tags-recursive:\n"
3644 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3645 # Never fail here if a subdir fails; it
3646 # isn't important.
3647 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3648 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3649 . "\tdone\n");
3650 push (@tag_deps, 'tags-recursive');
3651 &depend ('.PHONY', 'tags-recursive');
3652 &depend ('.MAKE', 'tags-recursive');
3654 $output_rules .= ("ctags-recursive:\n"
3655 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3656 # Never fail here if a subdir fails; it
3657 # isn't important.
3658 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3659 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3660 . "\tdone\n");
3661 push (@ctag_deps, 'ctags-recursive');
3662 &depend ('.PHONY', 'ctags-recursive');
3663 &depend ('.MAKE', 'ctags-recursive');
3665 $output_rules .= ("cscopelist-recursive:\n"
3666 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3667 # Never fail here if a subdir fails; it
3668 # isn't important.
3669 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3670 . " && \$(MAKE) \$(AM_MAKEFLAGS) cscopelist); \\\n"
3671 . "\tdone\n");
3672 push (@cscope_deps, 'cscopelist-recursive');
3673 &depend ('.PHONY', 'cscopelist-recursive');
3674 &depend ('.MAKE', 'cscopelist-recursive');
3675 }
3677 if (&saw_sources_p (1)
3678 || var ('ETAGS_ARGS')
3679 || @tag_deps)
3680 {
3681 my @config;
3682 foreach my $spec (@config_headers)
3683 {
3684 my ($out, @ins) = split_config_file_spec ($spec);
3685 foreach my $in (@ins)
3686 {
3687 # If the config header source is in this directory,
3688 # require it.
3689 push @config, basename ($in)
3690 if $relative_dir eq dirname ($in);
3691 }
3692 }
3693 $output_rules .= &file_contents ('tags',
3694 new Automake::Location,
3695 CONFIG => "@config",
3696 TAGSDIRS => "@tag_deps",
3697 CTAGSDIRS => "@ctag_deps",
3698 CSCOPEDIRS => "@cscope_deps");
3700 set_seen 'TAGS_DEPENDENCIES';
3701 }
3702 elsif (reject_var ('TAGS_DEPENDENCIES',
3703 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3704 . " without\nsources or 'ETAGS_ARGS'"))
3705 {
3706 }
3707 else
3708 {
3709 # Every Makefile must define some sort of TAGS rule.
3710 # Otherwise, it would be possible for a top-level "make TAGS"
3711 # to fail because some subdirectory failed.
3712 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3713 # Ditto ctags and cscope.
3714 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3715 $output_rules .= "cscope cscopelist:\n\n";
3716 }
3717 }
3720 # user_phony_rule ($NAME)
3721 # -----------------------
3722 # Return false if rule $NAME does not exist. Otherwise,
3723 # declare it as phony, complete its definition (in case it is
3724 # conditional), and return its Automake::Rule instance.
3725 sub user_phony_rule ($)
3726 {
3727 my ($name) = @_;
3728 my $rule = rule $name;
3729 if ($rule)
3730 {
3731 depend ('.PHONY', $name);
3732 # Define $NAME in all condition where it is not already defined,
3733 # so that it is always OK to depend on $NAME.
3734 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3735 {
3736 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3737 $c, INTERNAL);
3738 $output_rules .= $c->subst_string . "$name:\n";
3739 }
3740 }
3741 return $rule;
3742 }
3745 # $BOOLEAN
3746 # &for_dist_common ($A, $B)
3747 # -------------------------
3748 # Subroutine for &handle_dist: sort files to dist.
3749 #
3750 # We put README first because it then becomes easier to make a
3751 # Usenet-compliant shar file (in these, README must be first).
3752 #
3753 # FIXME: do more ordering of files here.
3754 sub for_dist_common
3755 {
3756 return 0
3757 if $a eq $b;
3758 return -1
3759 if $a eq 'README';
3760 return 1
3761 if $b eq 'README';
3762 return $a cmp $b;
3763 }
3765 # handle_dist
3766 # -----------
3767 # Handle 'dist' target.
3768 sub handle_dist ()
3769 {
3770 # Substitutions for distdir.am
3771 my %transform;
3773 # Define DIST_SUBDIRS. This must always be done, regardless of the
3774 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3775 my $subdirs = var ('SUBDIRS');
3776 if ($subdirs)
3777 {
3778 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3779 # to all possible directories, and use it. If DIST_SUBDIRS is
3780 # defined, just use it.
3782 # Note that we check DIST_SUBDIRS first on purpose, so that
3783 # we don't call has_conditional_contents for now reason.
3784 # (In the past one project used so many conditional subdirectories
3785 # that calling has_conditional_contents on SUBDIRS caused
3786 # automake to grow to 150Mb -- this should not happen with
3787 # the current implementation of has_conditional_contents,
3788 # but it's more efficient to avoid the call anyway.)
3789 if (var ('DIST_SUBDIRS'))
3790 {
3791 }
3792 elsif ($subdirs->has_conditional_contents)
3793 {
3794 define_pretty_variable
3795 ('DIST_SUBDIRS', TRUE, INTERNAL,
3796 uniq ($subdirs->value_as_list_recursive));
3797 }
3798 else
3799 {
3800 # We always define this because that is what 'distclean'
3801 # wants.
3802 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3803 '$(SUBDIRS)');
3804 }
3805 }
3807 # The remaining definitions are only required when a dist target is used.
3808 return if option 'no-dist';
3810 # At least one of the archive formats must be enabled.
3811 if ($relative_dir eq '.')
3812 {
3813 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3814 $archive_defined ||=
3815 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
3816 error (option 'no-dist-gzip',
3817 "no-dist-gzip specified but no dist-* specified,\n"
3818 . "at least one archive format must be enabled")
3819 unless $archive_defined;
3820 }
3822 # Look for common files that should be included in distribution.
3823 # If the aux dir is set, and it does not have a Makefile.am, then
3824 # we check for these files there as well.
3825 my $check_aux = 0;
3826 if ($relative_dir eq '.'
3827 && $config_aux_dir_set_in_configure_ac)
3828 {
3829 if (! &is_make_dir ($config_aux_dir))
3830 {
3831 $check_aux = 1;
3832 }
3833 }
3834 foreach my $cfile (@common_files)
3835 {
3836 if (dir_has_case_matching_file ($relative_dir, $cfile)
3837 # The file might be absent, but if it can be built it's ok.
3838 || rule $cfile)
3839 {
3840 &push_dist_common ($cfile);
3841 }
3843 # Don't use 'elsif' here because a file might meaningfully
3844 # appear in both directories.
3845 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3846 {
3847 &push_dist_common ("$config_aux_dir/$cfile")
3848 }
3849 }
3851 # We might copy elements from $configure_dist_common to
3852 # %dist_common if we think we need to. If the file appears in our
3853 # directory, we would have discovered it already, so we don't
3854 # check that. But if the file is in a subdir without a Makefile,
3855 # we want to distribute it here if we are doing '.'. Ugly!
3856 # Also, in some corner cases, it's possible that the following code
3857 # will cause the same file to appear in the $(DIST_COMMON) variables
3858 # of two distinct Makefiles; but this is not a problem, since the
3859 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3860 # file being distributed multiple times.
3861 # See also automake bug#9651.
3862 if ($relative_dir eq '.')
3863 {
3864 foreach my $file (split (' ' , $configure_dist_common))
3865 {
3866 my $dir = dirname ($file);
3867 push_dist_common ($file)
3868 if ($dir eq '.' || ! is_make_dir ($dir));
3869 }
3870 }
3872 # Files to distributed. Don't use ->value_as_list_recursive
3873 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3874 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3875 @dist_common = uniq (sort for_dist_common (@dist_common));
3876 variable_delete 'DIST_COMMON';
3877 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3879 # Now that we've processed DIST_COMMON, disallow further attempts
3880 # to set it.
3881 $handle_dist_run = 1;
3883 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3884 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3886 # If the target 'dist-hook' exists, make sure it is run. This
3887 # allows users to do random weird things to the distribution
3888 # before it is packaged up.
3889 push (@dist_targets, 'dist-hook')
3890 if user_phony_rule 'dist-hook';
3891 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3893 my $flm = option ('filename-length-max');
3894 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3896 $output_rules .= &file_contents ('distdir',
3897 new Automake::Location,
3898 %transform,
3899 FILENAME_FILTER => $filename_filter);
3900 }
3903 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3904 # -------------------------------------------------------
3905 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3906 # name. Use $WHERE as a location in the diagnostic, if any.
3907 sub check_directory ($$;$)
3908 {
3909 my ($dir, $where, $reldir) = @_;
3910 $reldir = '.' unless defined $reldir;
3912 error $where, "required directory $reldir/$dir does not exist"
3913 unless -d "$reldir/$dir";
3915 # If an 'obj/' directory exists, BSD make will enter it before
3916 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3917 # will not be read.
3918 #
3919 # % cat Makefile
3920 # all:
3921 # echo Hello
3922 # % cat obj/Makefile
3923 # all:
3924 # echo World
3925 # % make # GNU make
3926 # echo Hello
3927 # Hello
3928 # % pmake # BSD make
3929 # echo World
3930 # World
3931 msg ('portability', $where,
3932 "naming a subdirectory 'obj' causes troubles with BSD make")
3933 if $dir eq 'obj';
3935 # 'aux' is probably the most important of the following forbidden name,
3936 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3937 msg ('portability', $where,
3938 "name '$dir' is reserved on W32 and DOS platforms")
3939 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3940 }
3942 # check_directories_in_var ($VARIABLE)
3943 # ------------------------------------
3944 # Recursively check all items in variables $VARIABLE as directories
3945 sub check_directories_in_var ($)
3946 {
3947 my ($var) = @_;
3948 $var->traverse_recursively
3949 (sub
3950 {
3951 my ($var, $val, $cond, $full_cond) = @_;
3952 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3953 return ();
3954 },
3955 undef,
3956 skip_ac_subst => 1);
3957 }
3959 # &handle_subdirs ()
3960 # ------------------
3961 # Handle subdirectories.
3962 sub handle_subdirs ()
3963 {
3964 my $subdirs = var ('SUBDIRS');
3965 return
3966 unless $subdirs;
3968 check_directories_in_var $subdirs;
3970 my $dsubdirs = var ('DIST_SUBDIRS');
3971 check_directories_in_var $dsubdirs
3972 if $dsubdirs;
3974 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3975 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3976 }
3979 # ($REGEN, @DEPENDENCIES)
3980 # &scan_aclocal_m4
3981 # ----------------
3982 # If aclocal.m4 creation is automated, return the list of its dependencies.
3983 sub scan_aclocal_m4 ()
3984 {
3985 my $regen_aclocal = 0;
3987 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3988 set_seen 'CONFIGURE_DEPENDENCIES';
3990 if (-f 'aclocal.m4')
3991 {
3992 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3994 my $aclocal = new Automake::XFile "< aclocal.m4";
3995 my $line = $aclocal->getline;
3996 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3997 }
3999 my @ac_deps = ();
4001 if (set_seen ('ACLOCAL_M4_SOURCES'))
4002 {
4003 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4004 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4005 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
4006 . "It should be safe to simply remove it");
4007 }
4009 # Note that it might be possible that aclocal.m4 doesn't exist but
4010 # should be auto-generated. This case probably isn't very
4011 # important.
4013 return ($regen_aclocal, @ac_deps);
4014 }
4017 # Helper function for substitute_ac_subst_variables.
4018 sub substitute_ac_subst_variables_worker($)
4019 {
4020 my ($token) = @_;
4021 return "\@$token\@" if var $token;
4022 return "\${$token\}";
4023 }
4025 # substitute_ac_subst_variables ($TEXT)
4026 # -------------------------------------
4027 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4028 # variable.
4029 sub substitute_ac_subst_variables ($)
4030 {
4031 my ($text) = @_;
4032 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4033 return $text;
4034 }
4036 # @DEPENDENCIES
4037 # &prepend_srcdir (@INPUTS)
4038 # -------------------------
4039 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4040 # if an input file has a directory part the same as the current
4041 # directory, then the directory part is simply replaced by $(srcdir).
4042 # But if the directory part is different, then $(top_srcdir) is
4043 # prepended.
4044 sub prepend_srcdir (@)
4045 {
4046 my (@inputs) = @_;
4047 my @newinputs;
4049 foreach my $single (@inputs)
4050 {
4051 if (dirname ($single) eq $relative_dir)
4052 {
4053 push (@newinputs, '$(srcdir)/' . basename ($single));
4054 }
4055 else
4056 {
4057 push (@newinputs, '$(top_srcdir)/' . $single);
4058 }
4059 }
4060 return @newinputs;
4061 }
4063 # @DEPENDENCIES
4064 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4065 # ---------------------------------------------------
4066 # Compute a list of dependencies appropriate for the rebuild
4067 # rule of
4068 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4069 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4070 sub rewrite_inputs_into_dependencies ($@)
4071 {
4072 my ($file, @inputs) = @_;
4073 my @res = ();
4075 for my $i (@inputs)
4076 {
4077 # We cannot create dependencies on shell variables.
4078 next if (substitute_ac_subst_variables $i) =~ /\$/;
4080 if (exists $ac_config_files_location{$i} && $i ne $file)
4081 {
4082 my $di = dirname $i;
4083 if ($di eq $relative_dir)
4084 {
4085 $i = basename $i;
4086 }
4087 # In the top-level Makefile we do not use $(top_builddir), because
4088 # we are already there, and since the targets are built without
4089 # a $(top_builddir), it helps BSD Make to match them with
4090 # dependencies.
4091 elsif ($relative_dir ne '.')
4092 {
4093 $i = '$(top_builddir)/' . $i;
4094 }
4095 }
4096 else
4097 {
4098 msg ('error', $ac_config_files_location{$file},
4099 "required file '$i' not found")
4100 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4101 ($i) = prepend_srcdir ($i);
4102 push_dist_common ($i);
4103 }
4104 push @res, $i;
4105 }
4106 return @res;
4107 }
4111 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4112 # ------------------------------------------------------------------
4113 # Handle remaking and configure stuff.
4114 # We need the name of the input file, to do proper remaking rules.
4115 sub handle_configure ($$$@)
4116 {
4117 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4119 prog_error 'empty @inputs'
4120 unless @inputs;
4122 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4123 $makefile_in);
4124 my $rel_makefile = basename $makefile;
4126 my $colon_infile = ':' . join (':', @inputs);
4127 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4128 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4129 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4130 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4131 @configure_deps, @aclocal_m4_deps,
4132 '$(top_srcdir)/' . $configure_ac);
4133 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4134 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4135 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4136 @configuredeps);
4138 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4139 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4141 $output_rules .= file_contents
4142 ('configure',
4143 new Automake::Location,
4144 MAKEFILE => $rel_makefile,
4145 'MAKEFILE-DEPS' => "@rewritten",
4146 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4147 'MAKEFILE-IN' => $rel_makefile_in,
4148 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4149 'MAKEFILE-IN-DEPS' => "@include_stack",
4150 'MAKEFILE-AM' => $rel_makefile_am,
4151 'AUTOMAKE-OPTIONS' => $automake_options,
4152 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4153 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4154 VERBOSE => verbose_flag ('GEN'));
4156 if ($relative_dir eq '.')
4157 {
4158 &push_dist_common ('acconfig.h')
4159 if -f 'acconfig.h';
4160 }
4162 # If we have a configure header, require it.
4163 my $hdr_index = 0;
4164 my @distclean_config;
4165 foreach my $spec (@config_headers)
4166 {
4167 $hdr_index += 1;
4168 # $CONFIG_H_PATH: config.h from top level.
4169 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4170 my $config_h_dir = dirname ($config_h_path);
4172 # If the header is in the current directory we want to build
4173 # the header here. Otherwise, if we're at the topmost
4174 # directory and the header's directory doesn't have a
4175 # Makefile, then we also want to build the header.
4176 if ($relative_dir eq $config_h_dir
4177 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4178 {
4179 my ($cn_sans_dir, $stamp_dir);
4180 if ($relative_dir eq $config_h_dir)
4181 {
4182 $cn_sans_dir = basename ($config_h_path);
4183 $stamp_dir = '';
4184 }
4185 else
4186 {
4187 $cn_sans_dir = $config_h_path;
4188 if ($config_h_dir eq '.')
4189 {
4190 $stamp_dir = '';
4191 }
4192 else
4193 {
4194 $stamp_dir = $config_h_dir . '/';
4195 }
4196 }
4198 # This will also distribute all inputs.
4199 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4201 # Cannot define rebuild rules for filenames with shell variables.
4202 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4204 # Header defined in this directory.
4205 my @files;
4206 if (-f $config_h_path . '.top')
4207 {
4208 push (@files, "$cn_sans_dir.top");
4209 }
4210 if (-f $config_h_path . '.bot')
4211 {
4212 push (@files, "$cn_sans_dir.bot");
4213 }
4215 push_dist_common (@files);
4217 # For now, acconfig.h can only appear in the top srcdir.
4218 if (-f 'acconfig.h')
4219 {
4220 push (@files, '$(top_srcdir)/acconfig.h');
4221 }
4223 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4224 $output_rules .=
4225 file_contents ('remake-hdr',
4226 new Automake::Location,
4227 FILES => "@files",
4228 CONFIG_H => $cn_sans_dir,
4229 CONFIG_HIN => $ins[0],
4230 CONFIG_H_DEPS => "@ins",
4231 CONFIG_H_PATH => $config_h_path,
4232 STAMP => "$stamp");
4234 push @distclean_config, $cn_sans_dir, $stamp;
4235 }
4236 }
4238 $output_rules .= file_contents ('clean-hdr',
4239 new Automake::Location,
4240 FILES => "@distclean_config")
4241 if @distclean_config;
4243 # Distribute and define mkinstalldirs only if it is already present
4244 # in the package, for backward compatibility (some people may still
4245 # use $(mkinstalldirs)).
4246 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4247 if (-f $mkidpath)
4248 {
4249 # Use require_file so that any existing script gets updated
4250 # by --force-missing.
4251 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4252 define_variable ('mkinstalldirs',
4253 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4254 }
4255 else
4256 {
4257 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4258 # at least one argument, and $(mkinstalldirs) used to work
4259 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4260 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4261 }
4263 reject_var ('CONFIG_HEADER',
4264 "'CONFIG_HEADER' is an anachronism; now determined "
4265 . "automatically\nfrom '$configure_ac'");
4267 my @config_h;
4268 foreach my $spec (@config_headers)
4269 {
4270 my ($out, @ins) = split_config_file_spec ($spec);
4271 # Generate CONFIG_HEADER define.
4272 if ($relative_dir eq dirname ($out))
4273 {
4274 push @config_h, basename ($out);
4275 }
4276 else
4277 {
4278 push @config_h, "\$(top_builddir)/$out";
4279 }
4280 }
4281 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4282 if @config_h;
4284 # Now look for other files in this directory which must be remade
4285 # by config.status, and generate rules for them.
4286 my @actual_other_files = ();
4287 # These get cleaned only in a VPATH build.
4288 my @actual_other_vpath_files = ();
4289 foreach my $lfile (@other_input_files)
4290 {
4291 my $file;
4292 my @inputs;
4293 if ($lfile =~ /^([^:]*):(.*)$/)
4294 {
4295 # This is the ":" syntax of AC_OUTPUT.
4296 $file = $1;
4297 @inputs = split (':', $2);
4298 }
4299 else
4300 {
4301 # Normal usage.
4302 $file = $lfile;
4303 @inputs = $file . '.in';
4304 }
4306 # Automake files should not be stored in here, but in %MAKE_LIST.
4307 prog_error ("$lfile in \@other_input_files\n"
4308 . "\@other_input_files = (@other_input_files)")
4309 if -f $file . '.am';
4311 my $local = basename ($file);
4313 # We skip files that aren't in this directory. However, if
4314 # the file's directory does not have a Makefile, and we are
4315 # currently doing '.', then we create a rule to rebuild the
4316 # file in the subdir.
4317 my $fd = dirname ($file);
4318 if ($fd ne $relative_dir)
4319 {
4320 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4321 {
4322 $local = $file;
4323 }
4324 else
4325 {
4326 next;
4327 }
4328 }
4330 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4332 # Cannot output rules for shell variables.
4333 next if (substitute_ac_subst_variables $local) =~ /\$/;
4335 my $condstr = '';
4336 my $cond = $ac_config_files_condition{$lfile};
4337 if (defined $cond)
4338 {
4339 $condstr = $cond->subst_string;
4340 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4341 $ac_config_files_location{$file});
4342 }
4343 $output_rules .= ($condstr . $local . ': '
4344 . '$(top_builddir)/config.status '
4345 . "@rewritten_inputs\n"
4346 . $condstr . "\t"
4347 . 'cd $(top_builddir) && '
4348 . '$(SHELL) ./config.status '
4349 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4350 . '$@'
4351 . "\n");
4352 push (@actual_other_files, $local);
4353 }
4355 # For links we should clean destinations and distribute sources.
4356 foreach my $spec (@config_links)
4357 {
4358 my ($link, $file) = split /:/, $spec;
4359 # Some people do AC_CONFIG_LINKS($computed). We only handle
4360 # the DEST:SRC form.
4361 next unless $file;
4362 my $where = $ac_config_files_location{$link};
4364 # Skip destinations that contain shell variables.
4365 if ((substitute_ac_subst_variables $link) !~ /\$/)
4366 {
4367 # We skip links that aren't in this directory. However, if
4368 # the link's directory does not have a Makefile, and we are
4369 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4370 # in '.'s Makefile.in.
4371 my $local = basename ($link);
4372 my $fd = dirname ($link);
4373 if ($fd ne $relative_dir)
4374 {
4375 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4376 {
4377 $local = $link;
4378 }
4379 else
4380 {
4381 $local = undef;
4382 }
4383 }
4384 if ($file ne $link)
4385 {
4386 push @actual_other_files, $local if $local;
4387 }
4388 else
4389 {
4390 push @actual_other_vpath_files, $local if $local;
4391 }
4392 }
4394 # Do not process sources that contain shell variables.
4395 if ((substitute_ac_subst_variables $file) !~ /\$/)
4396 {
4397 my $fd = dirname ($file);
4399 # We distribute files that are in this directory.
4400 # At the top-level ('.') we also distribute files whose
4401 # directory does not have a Makefile.
4402 if (($fd eq $relative_dir)
4403 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4404 {
4405 # The following will distribute $file as a side-effect when
4406 # it is appropriate (i.e., when $file is not already an output).
4407 # We do not need the result, just the side-effect.
4408 rewrite_inputs_into_dependencies ($link, $file);
4409 }
4410 }
4411 }
4413 # These files get removed by "make distclean".
4414 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4415 @actual_other_files);
4416 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4417 @actual_other_vpath_files);
4418 }
4420 # Handle C headers.
4421 sub handle_headers
4422 {
4423 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4424 'oldinclude', 'pkginclude',
4425 'noinst', 'check');
4426 foreach (@r)
4427 {
4428 next unless $_->[1] =~ /\..*$/;
4429 &saw_extension ($&);
4430 }
4431 }
4433 sub handle_gettext
4434 {
4435 return if ! $seen_gettext || $relative_dir ne '.';
4437 my $subdirs = var 'SUBDIRS';
4439 if (! $subdirs)
4440 {
4441 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4442 return;
4443 }
4445 # Perform some sanity checks to help users get the right setup.
4446 # We disable these tests when po/ doesn't exist in order not to disallow
4447 # unusual gettext setups.
4448 #
4449 # Bruno Haible:
4450 # | The idea is:
4451 # |
4452 # | 1) If a package doesn't have a directory po/ at top level, it
4453 # | will likely have multiple po/ directories in subpackages.
4454 # |
4455 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4456 # | is used without 'external'. It is also useful to warn for the
4457 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4458 # | warnings apply only to the usual layout of packages, therefore
4459 # | they should both be disabled if no po/ directory is found at
4460 # | top level.
4462 if (-d 'po')
4463 {
4464 my @subdirs = $subdirs->value_as_list_recursive;
4466 msg_var ('syntax', $subdirs,
4467 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4468 if ! grep ($_ eq 'po', @subdirs);
4470 # intl/ is not required when AM_GNU_GETTEXT is called with the
4471 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4472 msg_var ('syntax', $subdirs,
4473 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4474 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4475 && ! grep ($_ eq 'intl', @subdirs));
4477 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4478 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4479 msg_var ('syntax', $subdirs,
4480 "'intl' should not be in SUBDIRS when "
4481 . "AM_GNU_GETTEXT([external]) is used")
4482 if ($seen_gettext_external && ! $seen_gettext_intl
4483 && grep ($_ eq 'intl', @subdirs));
4484 }
4486 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4487 }
4489 # Handle footer elements.
4490 sub handle_footer
4491 {
4492 reject_rule ('.SUFFIXES',
4493 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4495 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4496 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4497 # anything else, by sticking it right after the default: target.
4498 $output_header .= ".SUFFIXES:\n";
4499 my $suffixes = var 'SUFFIXES';
4500 my @suffixes = Automake::Rule::suffixes;
4501 if (@suffixes || $suffixes)
4502 {
4503 # Make sure SUFFIXES has unique elements. Sort them to ensure
4504 # the output remains consistent. However, $(SUFFIXES) is
4505 # always at the start of the list, unsorted. This is done
4506 # because make will choose rules depending on the ordering of
4507 # suffixes, and this lets the user have some control. Push
4508 # actual suffixes, and not $(SUFFIXES). Some versions of make
4509 # do not like variable substitutions on the .SUFFIXES line.
4510 my @user_suffixes = ($suffixes
4511 ? $suffixes->value_as_list_recursive : ());
4513 my %suffixes = map { $_ => 1 } @suffixes;
4514 delete @suffixes{@user_suffixes};
4516 $output_header .= (".SUFFIXES: "
4517 . join (' ', @user_suffixes, sort keys %suffixes)
4518 . "\n");
4519 }
4521 $output_trailer .= file_contents ('footer', new Automake::Location);
4522 }
4525 # Generate 'make install' rules.
4526 sub handle_install ()
4527 {
4528 $output_rules .= &file_contents
4529 ('install',
4530 new Automake::Location,
4531 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4532 ? (" \$(BUILT_SOURCES)\n"
4533 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4534 : ''),
4535 'installdirs-local' => (user_phony_rule 'installdirs-local'
4536 ? ' installdirs-local' : ''),
4537 am__installdirs => variable_value ('am__installdirs') || '');
4538 }
4541 # Deal with all and all-am.
4542 sub handle_all ($)
4543 {
4544 my ($makefile) = @_;
4546 # Output 'all-am'.
4548 # Put this at the beginning for the sake of non-GNU makes. This
4549 # is still wrong if these makes can run parallel jobs. But it is
4550 # right enough.
4551 unshift (@all, basename ($makefile));
4553 foreach my $spec (@config_headers)
4554 {
4555 my ($out, @ins) = split_config_file_spec ($spec);
4556 push (@all, basename ($out))
4557 if dirname ($out) eq $relative_dir;
4558 }
4560 # Install 'all' hooks.
4561 push (@all, "all-local")
4562 if user_phony_rule "all-local";
4564 &pretty_print_rule ("all-am:", "\t\t", @all);
4565 &depend ('.PHONY', 'all-am', 'all');
4568 # Output 'all'.
4570 my @local_headers = ();
4571 push @local_headers, '$(BUILT_SOURCES)'
4572 if var ('BUILT_SOURCES');
4573 foreach my $spec (@config_headers)
4574 {
4575 my ($out, @ins) = split_config_file_spec ($spec);
4576 push @local_headers, basename ($out)
4577 if dirname ($out) eq $relative_dir;
4578 }
4580 if (@local_headers)
4581 {
4582 # We need to make sure config.h is built before we recurse.
4583 # We also want to make sure that built sources are built
4584 # before any ordinary 'all' targets are run. We can't do this
4585 # by changing the order of dependencies to the "all" because
4586 # that breaks when using parallel makes. Instead we handle
4587 # things explicitly.
4588 $output_all .= ("all: @local_headers"
4589 . "\n\t"
4590 . '$(MAKE) $(AM_MAKEFLAGS) '
4591 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4592 . "\n\n");
4593 depend ('.MAKE', 'all');
4594 }
4595 else
4596 {
4597 $output_all .= "all: " . (var ('SUBDIRS')
4598 ? 'all-recursive' : 'all-am') . "\n\n";
4599 }
4600 }
4603 # &do_check_merge_target ()
4604 # -------------------------
4605 # Handle check merge target specially.
4606 sub do_check_merge_target ()
4607 {
4608 # Include user-defined local form of target.
4609 push @check_tests, 'check-local'
4610 if user_phony_rule 'check-local';
4612 # In --cygnus mode, check doesn't depend on all.
4613 if (option 'cygnus')
4614 {
4615 # Just run the local check rules.
4616 pretty_print_rule ('check-am:', "\t\t", @check);
4617 }
4618 else
4619 {
4620 # The check target must depend on the local equivalent of
4621 # 'all', to ensure all the primary targets are built. Then it
4622 # must build the local check rules.
4623 $output_rules .= "check-am: all-am\n";
4624 if (@check)
4625 {
4626 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4627 @check);
4628 depend ('.MAKE', 'check-am');
4629 }
4630 }
4631 if (@check_tests)
4632 {
4633 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4634 @check_tests);
4635 depend ('.MAKE', 'check-am');
4636 }
4638 depend '.PHONY', 'check', 'check-am';
4639 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4640 $output_rules .= ("check: "
4641 . (var ('BUILT_SOURCES')
4642 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4643 : '')
4644 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4645 . "\n");
4646 depend ('.MAKE', 'check')
4647 if var ('BUILT_SOURCES');
4648 }
4650 # handle_clean ($MAKEFILE)
4651 # ------------------------
4652 # Handle all 'clean' targets.
4653 sub handle_clean ($)
4654 {
4655 my ($makefile) = @_;
4657 # Clean the files listed in user variables if they exist.
4658 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4659 if var ('MOSTLYCLEANFILES');
4660 $clean_files{'$(CLEANFILES)'} = CLEAN
4661 if var ('CLEANFILES');
4662 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4663 if var ('DISTCLEANFILES');
4664 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4665 if var ('MAINTAINERCLEANFILES');
4667 # Built sources are automatically removed by maintainer-clean.
4668 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4669 if var ('BUILT_SOURCES');
4671 # Compute a list of "rm"s to run for each target.
4672 my %rms = (MOSTLY_CLEAN, [],
4673 CLEAN, [],
4674 DIST_CLEAN, [],
4675 MAINTAINER_CLEAN, []);
4677 foreach my $file (keys %clean_files)
4678 {
4679 my $when = $clean_files{$file};
4680 prog_error 'invalid entry in %clean_files'
4681 unless exists $rms{$when};
4683 my $rm = "rm -f $file";
4684 # If file is a variable, make sure when don't call 'rm -f' without args.
4685 $rm ="test -z \"$file\" || $rm"
4686 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4688 push @{$rms{$when}}, "\t-$rm\n";
4689 }
4691 $output_rules .= &file_contents
4692 ('clean',
4693 new Automake::Location,
4694 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4695 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4696 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4697 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4698 MAKEFILE => basename $makefile,
4699 );
4700 }
4703 # &target_cmp ($A, $B)
4704 # --------------------
4705 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4706 # other '.TARGETS' be last.
4707 sub target_cmp
4708 {
4709 return 0 if $a eq $b;
4711 my $a1 = substr ($a, 0, 1);
4712 my $b1 = substr ($b, 0, 1);
4713 if ($a1 ne $b1)
4714 {
4715 return -1 if $b1 eq '.';
4716 return 1 if $a1 eq '.';
4717 }
4718 return $a cmp $b;
4719 }
4722 # &handle_factored_dependencies ()
4723 # --------------------------------
4724 # Handle everything related to gathered targets.
4725 sub handle_factored_dependencies
4726 {
4727 # Reject bad hooks.
4728 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4729 'uninstall-exec-local', 'uninstall-exec-hook',
4730 'uninstall-dvi-local',
4731 'uninstall-html-local',
4732 'uninstall-info-local',
4733 'uninstall-pdf-local',
4734 'uninstall-ps-local')
4735 {
4736 my $x = $utarg;
4737 $x =~ s/-.*-/-/;
4738 reject_rule ($utarg, "use '$x', not '$utarg'");
4739 }
4741 reject_rule ('install-local',
4742 "use 'install-data-local' or 'install-exec-local', "
4743 . "not 'install-local'");
4745 reject_rule ('install-hook',
4746 "use 'install-data-hook' or 'install-exec-hook', "
4747 . "not 'install-hook'");
4749 # Install the -local hooks.
4750 foreach (keys %dependencies)
4751 {
4752 # Hooks are installed on the -am targets.
4753 s/-am$// or next;
4754 depend ("$_-am", "$_-local")
4755 if user_phony_rule "$_-local";
4756 }
4758 # Install the -hook hooks.
4759 # FIXME: Why not be as liberal as we are with -local hooks?
4760 foreach ('install-exec', 'install-data', 'uninstall')
4761 {
4762 if (user_phony_rule "$_-hook")
4763 {
4764 depend ('.MAKE', "$_-am");
4765 register_action("$_-am",
4766 ("\t\@\$(NORMAL_INSTALL)\n"
4767 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4768 }
4769 }
4771 # All the required targets are phony.
4772 depend ('.PHONY', keys %required_targets);
4774 # Actually output gathered targets.
4775 foreach (sort target_cmp keys %dependencies)
4776 {
4777 # If there is nothing about this guy, skip it.
4778 next
4779 unless (@{$dependencies{$_}}
4780 || $actions{$_}
4781 || $required_targets{$_});
4783 # Define gathered targets in undefined conditions.
4784 # FIXME: Right now we must handle .PHONY as an exception,
4785 # because people write things like
4786 # .PHONY: myphonytarget
4787 # to append dependencies. This would not work if Automake
4788 # refrained from defining its own .PHONY target as it does
4789 # with other overridden targets.
4790 # Likewise for '.MAKE'.
4791 my @undefined_conds = (TRUE,);
4792 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4793 {
4794 @undefined_conds =
4795 Automake::Rule::define ($_, 'internal',
4796 RULE_AUTOMAKE, TRUE, INTERNAL);
4797 }
4798 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4799 foreach my $cond (@undefined_conds)
4800 {
4801 my $condstr = $cond->subst_string;
4802 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4803 $output_rules .= $actions{$_} if defined $actions{$_};
4804 $output_rules .= "\n";
4805 }
4806 }
4807 }
4810 # &handle_tests_dejagnu ()
4811 # ------------------------
4812 sub handle_tests_dejagnu
4813 {
4814 push (@check_tests, 'check-DEJAGNU');
4815 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4816 }
4818 sub handle_per_suffix_test
4819 {
4820 my ($test_suffix, %transform) = @_;
4821 my ($pfx, $generic, $parallel_tests_option, $am_exeext);
4822 prog_error ("called with 'parallel-tests' option not set")
4823 unless $parallel_tests_option = option 'parallel-tests';
4824 if ($test_suffix eq '')
4825 {
4826 $pfx = '';
4827 $generic = 0;
4828 $am_exeext = 'FALSE';
4829 }
4830 else
4831 {
4832 prog_error ("test suffix '$test_suffix' lacks leading dot")
4833 unless $test_suffix =~ m/^\.(.*)/;
4834 $pfx = uc ($1) . '_';
4835 $generic = 1;
4836 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4837 : 'FALSE';
4838 }
4839 # The "test driver" program, deputed to handle tests protocol used by
4840 # test scripts. By default, it's assumed that no protocol is used,
4841 # so we fall back to the old "parallel-tests" behaviour, implemented
4842 # by the 'test-driver' auxiliary script.
4843 if (! var "${pfx}LOG_DRIVER")
4844 {
4845 require_conf_file ($parallel_tests_option->{position}, FOREIGN,
4846 'test-driver');
4847 define_variable ("${pfx}LOG_DRIVER",
4848 "\$(SHELL) $am_config_aux_dir/test-driver",
4849 INTERNAL);
4850 }
4851 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4852 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4853 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4854 my $compile = "${pfx}LOG_COMPILE";
4855 define_variable ($compile,
4856 '$(' . $pfx . 'LOG_COMPILER)'
4857 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4858 . ' $(' . $pfx . 'LOG_FLAGS)',
4859 INTERNAL);
4860 $output_rules .= file_contents ('check2', new Automake::Location,
4861 GENERIC => $generic,
4862 DRIVER => $driver,
4863 DRIVER_FLAGS => $driver_flags,
4864 COMPILE => '$(' . $compile . ')',
4865 EXT => $test_suffix,
4866 am__EXEEXT => $am_exeext,
4867 %transform);
4868 }
4870 # is_valid_test_extension ($EXT)
4871 # ------------------------------
4872 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4873 # otherwise.
4874 sub is_valid_test_extension ($)
4875 {
4876 my $ext = shift;
4877 return 1
4878 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4879 return 1
4880 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4881 return 0;
4882 }
4884 # Handle TESTS variable and other checks.
4885 sub handle_tests
4886 {
4887 if (option 'dejagnu')
4888 {
4889 &handle_tests_dejagnu;
4890 }
4891 else
4892 {
4893 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4894 {
4895 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4896 . "'AUTOMAKE_OPTIONS'");
4897 }
4898 }
4900 if (var ('TESTS'))
4901 {
4902 push (@check_tests, 'check-TESTS');
4903 my $check_deps = "@check";
4904 $output_rules .= &file_contents ('check', new Automake::Location,
4905 COLOR => !! option 'color-tests',
4906 PARALLEL_TESTS => !! option 'parallel-tests',
4907 CHECK_DEPS => $check_deps);
4909 # Tests that are known programs should have $(EXEEXT) appended.
4910 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4911 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4912 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4913 if (var ('XFAIL_TESTS'));
4915 if (my $parallel_tests = option 'parallel-tests')
4916 {
4917 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4918 my $suff = '.test';
4919 my $at_exeext = '';
4920 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4921 if ($handle_exeext)
4922 {
4923 $at_exeext = subst ('EXEEXT');
4924 $suff = $at_exeext . ' ' . $suff;
4925 }
4926 if (! var 'TEST_EXTENSIONS')
4927 {
4928 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4929 }
4930 my $var = var 'TEST_EXTENSIONS';
4931 # Currently, we are not able to deal with conditional contents
4932 # in TEST_EXTENSIONS.
4933 if ($var->has_conditional_contents)
4934 {
4935 msg_var 'unsupported', $var,
4936 "'TEST_EXTENSIONS' cannot have conditional contents";
4937 }
4938 my @test_suffixes = $var->value_as_list_recursive;
4939 if ((my @invalid_test_suffixes =
4940 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4941 {
4942 error $var->rdef (TRUE)->location,
4943 "invalid test extensions: @invalid_test_suffixes";
4944 }
4945 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4946 if ($handle_exeext)
4947 {
4948 unshift (@test_suffixes, $at_exeext)
4949 unless $test_suffixes[0] eq $at_exeext;
4950 }
4951 unshift (@test_suffixes, '');
4953 transform_variable_recursively
4954 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4955 sub {
4956 my ($subvar, $val, $cond, $full_cond) = @_;
4957 my $obj = $val;
4958 return $obj
4959 if $val =~ /^\@.*\@$/;
4960 $obj =~ s/\$\(EXEEXT\)$//o;
4962 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4963 {
4964 msg ('error', $subvar->rdef ($cond)->location,
4965 "parallel-tests: using '$1' in TESTS is currently broken: '$val'");
4966 }
4968 foreach my $test_suffix (@test_suffixes)
4969 {
4970 next
4971 if $test_suffix eq $at_exeext || $test_suffix eq '';
4972 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4973 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4974 }
4975 my $base = $obj;
4976 $obj .= '.log';
4977 handle_per_suffix_test ('',
4978 OBJ => $obj,
4979 BASE => $base,
4980 SOURCE => $val);
4981 return $obj;
4982 });
4984 my $nhelper=1;
4985 my $prev = 'TESTS';
4986 my $post = '';
4987 my $last_suffix = $test_suffixes[$#test_suffixes];
4988 my $cur = '';
4989 foreach my $test_suffix (@test_suffixes)
4990 {
4991 if ($test_suffix eq $last_suffix)
4992 {
4993 $cur = 'TEST_LOGS';
4994 }
4995 else
4996 {
4997 $cur = 'am__test_logs' . $nhelper;
4998 }
4999 define_variable ($cur,
5000 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5001 $post = '.log';
5002 $prev = $cur;
5003 $nhelper++;
5004 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5005 {
5006 handle_per_suffix_test ($test_suffix,
5007 OBJ => '',
5008 BASE => '$*',
5009 SOURCE => '$<');
5010 }
5011 }
5012 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5013 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
5014 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5015 }
5016 }
5017 }
5019 # Handle Emacs Lisp.
5020 sub handle_emacs_lisp
5021 {
5022 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5023 'lisp', 'noinst');
5025 return if ! @elfiles;
5027 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5028 map { $_->[1] } @elfiles);
5029 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5030 '$(am__ELFILES:.el=.elc)');
5031 # This one can be overridden by users.
5032 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5034 push @all, '$(ELCFILES)';
5036 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5037 'EMACS', 'lispdir');
5038 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5039 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5040 }
5042 # Handle Python
5043 sub handle_python
5044 {
5045 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5046 'noinst');
5047 return if ! @pyfiles;
5049 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5050 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5051 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5052 }
5054 # Handle Java.
5055 sub handle_java
5056 {
5057 my @sourcelist = &am_install_var ('-candist',
5058 'java', 'JAVA',
5059 'noinst', 'check');
5060 return if ! @sourcelist;
5062 my @prefixes = am_primary_prefixes ('JAVA', 1,
5063 'noinst', 'check');
5065 my $dir;
5066 my @java_sources = ();
5067 foreach my $prefix (@prefixes)
5068 {
5069 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5071 next
5072 if $curs eq 'EXTRA';
5074 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5076 if (defined $dir)
5077 {
5078 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5079 unless $curs eq $dir;
5080 }
5082 $dir = $curs;
5083 }
5085 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5086 "@java_sources");
5088 if ($dir eq 'check')
5089 {
5090 push (@check, "class$dir.stamp");
5091 }
5092 else
5093 {
5094 push (@all, "class$dir.stamp");
5095 }
5096 }
5099 # Handle some of the minor options.
5100 sub handle_minor_options
5101 {
5102 if (option 'readme-alpha')
5103 {
5104 if ($relative_dir eq '.')
5105 {
5106 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5107 {
5108 msg ('error-gnits', $package_version_location,
5109 "version '$package_version' doesn't follow " .
5110 "Gnits standards");
5111 }
5112 if (defined $1 && -f 'README-alpha')
5113 {
5114 # This means we have an alpha release. See
5115 # GNITS_VERSION_PATTERN for details.
5116 push_dist_common ('README-alpha');
5117 }
5118 }
5119 }
5120 }
5122 ################################################################
5124 # ($OUTPUT, @INPUTS)
5125 # &split_config_file_spec ($SPEC)
5126 # -------------------------------
5127 # Decode the Autoconf syntax for config files (files, headers, links
5128 # etc.).
5129 sub split_config_file_spec ($)
5130 {
5131 my ($spec) = @_;
5132 my ($output, @inputs) = split (/:/, $spec);
5134 push @inputs, "$output.in"
5135 unless @inputs;
5137 return ($output, @inputs);
5138 }
5140 # $input
5141 # locate_am (@POSSIBLE_SOURCES)
5142 # -----------------------------
5143 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5144 # This functions returns the first *.in file for which a *.am exists.
5145 # It returns undef otherwise.
5146 sub locate_am (@)
5147 {
5148 my (@rest) = @_;
5149 my $input;
5150 foreach my $file (@rest)
5151 {
5152 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5153 {
5154 $input = $file;
5155 last;
5156 }
5157 }
5158 return $input;
5159 }
5161 my %make_list;
5163 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5164 # ---------------------------------------------------
5165 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5166 # (or AC_OUTPUT).
5167 sub scan_autoconf_config_files ($$)
5168 {
5169 my ($where, $config_files) = @_;
5171 # Look at potential Makefile.am's.
5172 foreach (split ' ', $config_files)
5173 {
5174 # Must skip empty string for Perl 4.
5175 next if $_ eq "\\" || $_ eq '';
5177 # Handle $local:$input syntax.
5178 my ($local, @rest) = split (/:/);
5179 @rest = ("$local.in",) unless @rest;
5180 # Keep in sync with 'conffile-leading-dot.test'.
5181 msg ('unsupported', $where,
5182 "omit leading './' from config file names such as '$local';"
5183 . "\nremake rules might be subtly broken otherwise")
5184 if ($local =~ /^\.\//);
5185 my $input = locate_am @rest;
5186 if ($input)
5187 {
5188 # We have a file that automake should generate.
5189 $make_list{$input} = join (':', ($local, @rest));
5190 }
5191 else
5192 {
5193 # We have a file that automake should cause to be
5194 # rebuilt, but shouldn't generate itself.
5195 push (@other_input_files, $_);
5196 }
5197 $ac_config_files_location{$local} = $where;
5198 $ac_config_files_condition{$local} =
5199 new Automake::Condition (@cond_stack)
5200 if (@cond_stack);
5201 }
5202 }
5205 # &scan_autoconf_traces ($FILENAME)
5206 # ---------------------------------
5207 sub scan_autoconf_traces ($)
5208 {
5209 my ($filename) = @_;
5211 # Macros to trace, with their minimal number of arguments.
5212 #
5213 # IMPORTANT: If you add a macro here, you should also add this macro
5214 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5215 my %traced = (
5216 AC_CANONICAL_BUILD => 0,
5217 AC_CANONICAL_HOST => 0,
5218 AC_CANONICAL_TARGET => 0,
5219 AC_CONFIG_AUX_DIR => 1,
5220 AC_CONFIG_FILES => 1,
5221 AC_CONFIG_HEADERS => 1,
5222 AC_CONFIG_LIBOBJ_DIR => 1,
5223 AC_CONFIG_LINKS => 1,
5224 AC_FC_SRCEXT => 1,
5225 AC_INIT => 0,
5226 AC_LIBSOURCE => 1,
5227 AC_REQUIRE_AUX_FILE => 1,
5228 AC_SUBST_TRACE => 1,
5229 AM_AUTOMAKE_VERSION => 1,
5230 AM_PROG_MKDIR_P => 0, # FIXME: to be removed in 1.13
5231 AM_CONDITIONAL => 2,
5232 AM_GNU_GETTEXT => 0,
5233 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5234 AM_INIT_AUTOMAKE => 0,
5235 AM_MAINTAINER_MODE => 0,
5236 AM_PROG_AR => 0,
5237 AM_PROG_CC_C_O => 0,
5238 AM_SILENT_RULES => 0,
5239 _AM_SUBST_NOTMAKE => 1,
5240 _AM_COND_IF => 1,
5241 _AM_COND_ELSE => 1,
5242 _AM_COND_ENDIF => 1,
5243 LT_SUPPORTED_TAG => 1,
5244 _LT_AC_TAGCONFIG => 0,
5245 m4_include => 1,
5246 m4_sinclude => 1,
5247 sinclude => 1,
5248 );
5250 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5252 # Use a separator unlikely to be used, not ':', the default, which
5253 # has a precise meaning for AC_CONFIG_FILES and so on.
5254 $traces .= join (' ',
5255 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5256 (keys %traced));
5258 my $tracefh = new Automake::XFile ("$traces $filename |");
5259 verb "reading $traces";
5261 @cond_stack = ();
5262 my $where;
5264 while ($_ = $tracefh->getline)
5265 {
5266 chomp;
5267 my ($here, $depth, @args) = split (/::/);
5268 $where = new Automake::Location $here;
5269 my $macro = $args[0];
5271 prog_error ("unrequested trace '$macro'")
5272 unless exists $traced{$macro};
5274 # Skip and diagnose malformed calls.
5275 if ($#args < $traced{$macro})
5276 {
5277 msg ('syntax', $where, "not enough arguments for $macro");
5278 next;
5279 }
5281 # Alphabetical ordering please.
5282 if ($macro eq 'AC_CANONICAL_BUILD')
5283 {
5284 if ($seen_canonical <= AC_CANONICAL_BUILD)
5285 {
5286 $seen_canonical = AC_CANONICAL_BUILD;
5287 }
5288 }
5289 elsif ($macro eq 'AC_CANONICAL_HOST')
5290 {
5291 if ($seen_canonical <= AC_CANONICAL_HOST)
5292 {
5293 $seen_canonical = AC_CANONICAL_HOST;
5294 }
5295 }
5296 elsif ($macro eq 'AC_CANONICAL_TARGET')
5297 {
5298 $seen_canonical = AC_CANONICAL_TARGET;
5299 }
5300 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5301 {
5302 if ($seen_init_automake)
5303 {
5304 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5305 . "AM_INIT_AUTOMAKE ...", partial => 1);
5306 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5307 }
5308 $config_aux_dir = $args[1];
5309 $config_aux_dir_set_in_configure_ac = 1;
5310 check_directory ($config_aux_dir, $where);
5311 }
5312 elsif ($macro eq 'AC_CONFIG_FILES')
5313 {
5314 # Look at potential Makefile.am's.
5315 scan_autoconf_config_files ($where, $args[1]);
5316 }
5317 elsif ($macro eq 'AC_CONFIG_HEADERS')
5318 {
5319 foreach my $spec (split (' ', $args[1]))
5320 {
5321 my ($dest, @src) = split (':', $spec);
5322 $ac_config_files_location{$dest} = $where;
5323 push @config_headers, $spec;
5324 }
5325 }
5326 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5327 {
5328 $config_libobj_dir = $args[1];
5329 check_directory ($config_libobj_dir, $where);
5330 }
5331 elsif ($macro eq 'AC_CONFIG_LINKS')
5332 {
5333 foreach my $spec (split (' ', $args[1]))
5334 {
5335 my ($dest, $src) = split (':', $spec);
5336 $ac_config_files_location{$dest} = $where;
5337 push @config_links, $spec;
5338 }
5339 }
5340 elsif ($macro eq 'AC_FC_SRCEXT')
5341 {
5342 my $suffix = $args[1];
5343 # These flags are used as %SOURCEFLAG% in depend2.am,
5344 # where the trailing space is important.
5345 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5346 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5347 }
5348 elsif ($macro eq 'AC_INIT')
5349 {
5350 if (defined $args[2])
5351 {
5352 $package_version = $args[2];
5353 $package_version_location = $where;
5354 }
5355 }
5356 elsif ($macro eq 'AC_LIBSOURCE')
5357 {
5358 $libsources{$args[1]} = $here;
5359 }
5360 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5361 {
5362 # Only remember the first time a file is required.
5363 $required_aux_file{$args[1]} = $where
5364 unless exists $required_aux_file{$args[1]};
5365 }
5366 elsif ($macro eq 'AC_SUBST_TRACE')
5367 {
5368 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5369 # AC_SUBST(5), then too bad.
5370 $configure_vars{$args[1]} = $where
5371 if $args[1] =~ /^\w+$/;
5372 }
5373 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5374 {
5375 error ($where,
5376 "version mismatch. This is Automake $VERSION,\n" .
5377 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5378 "comes from Automake $args[1]. You should recreate\n" .
5379 "aclocal.m4 with aclocal and run automake again.\n",
5380 # $? = 63 is used to indicate version mismatch to missing.
5381 exit_code => 63)
5382 if $VERSION ne $args[1];
5384 $seen_automake_version = 1;
5385 }
5386 elsif ($macro eq 'AM_PROG_MKDIR_P') # FIXME: to be removed in 1.13
5387 {
5388 msg 'obsolete', $where, <<'EOF';
5389 The 'AM_PROG_MKDIR_P' macro is deprecated, and will soon be removed.
5390 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5391 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5392 EOF
5393 }
5394 elsif ($macro eq 'AM_CONDITIONAL')
5395 {
5396 $configure_cond{$args[1]} = $where;
5397 }
5398 elsif ($macro eq 'AM_GNU_GETTEXT')
5399 {
5400 $seen_gettext = $where;
5401 $ac_gettext_location = $where;
5402 $seen_gettext_external = grep ($_ eq 'external', @args);
5403 }
5404 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5405 {
5406 $seen_gettext_intl = $where;
5407 }
5408 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5409 {
5410 $seen_init_automake = $where;
5411 if (defined $args[2])
5412 {
5413 msg 'obsolete', $where, <<'EOF';
5414 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5415 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation
5416 EOF
5417 $package_version = $args[2];
5418 $package_version_location = $where;
5419 }
5420 elsif (defined $args[1])
5421 {
5422 my @opts = split (' ', $args[1]);
5423 @opts = map { { option => $_, where => $where } } @opts;
5424 exit $exit_code if process_global_option_list (@opts);
5425 }
5426 }
5427 elsif ($macro eq 'AM_MAINTAINER_MODE')
5428 {
5429 $seen_maint_mode = $where;
5430 }
5431 elsif ($macro eq 'AM_PROG_AR')
5432 {
5433 $seen_ar = $where;
5434 }
5435 elsif ($macro eq 'AM_PROG_CC_C_O')
5436 {
5437 $seen_cc_c_o = $where;
5438 }
5439 elsif ($macro eq 'AM_SILENT_RULES')
5440 {
5441 set_global_option ('silent-rules', $where);
5442 }
5443 elsif ($macro eq '_AM_COND_IF')
5444 {
5445 cond_stack_if ('', $args[1], $where);
5446 error ($where, "missing m4 quoting, macro depth $depth")
5447 if ($depth != 1);
5448 }
5449 elsif ($macro eq '_AM_COND_ELSE')
5450 {
5451 cond_stack_else ('!', $args[1], $where);
5452 error ($where, "missing m4 quoting, macro depth $depth")
5453 if ($depth != 1);
5454 }
5455 elsif ($macro eq '_AM_COND_ENDIF')
5456 {
5457 cond_stack_endif (undef, undef, $where);
5458 error ($where, "missing m4 quoting, macro depth $depth")
5459 if ($depth != 1);
5460 }
5461 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5462 {
5463 $ignored_configure_vars{$args[1]} = $where;
5464 }
5465 elsif ($macro eq 'm4_include'
5466 || $macro eq 'm4_sinclude'
5467 || $macro eq 'sinclude')
5468 {
5469 # Skip missing 'sinclude'd files.
5470 next if $macro ne 'm4_include' && ! -f $args[1];
5472 # Some modified versions of Autoconf don't use
5473 # frozen files. Consequently it's possible that we see all
5474 # m4_include's performed during Autoconf's startup.
5475 # Obviously we don't want to distribute Autoconf's files
5476 # so we skip absolute filenames here.
5477 push @configure_deps, '$(top_srcdir)/' . $args[1]
5478 unless $here =~ m,^(?:\w:)?[\\/],;
5479 # Keep track of the greatest timestamp.
5480 if (-e $args[1])
5481 {
5482 my $mtime = mtime $args[1];
5483 $configure_deps_greatest_timestamp = $mtime
5484 if $mtime > $configure_deps_greatest_timestamp;
5485 }
5486 }
5487 elsif ($macro eq 'LT_SUPPORTED_TAG')
5488 {
5489 $libtool_tags{$args[1]} = 1;
5490 $libtool_new_api = 1;
5491 }
5492 elsif ($macro eq '_LT_AC_TAGCONFIG')
5493 {
5494 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5495 # We use it to detect whether tags are supported. Our
5496 # preferred interface is LT_SUPPORTED_TAG, but it was
5497 # introduced in Libtool 1.6.
5498 if (0 == keys %libtool_tags)
5499 {
5500 # Hardcode the tags supported by Libtool 1.5.
5501 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5502 }
5503 }
5504 }
5506 error ($where, "condition stack not properly closed")
5507 if (@cond_stack);
5509 $tracefh->close;
5510 }
5513 # &scan_autoconf_files ()
5514 # -----------------------
5515 # Check whether we use 'configure.ac' or 'configure.in'.
5516 # Scan it (and possibly 'aclocal.m4') for interesting things.
5517 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5518 sub scan_autoconf_files ()
5519 {
5520 # Reinitialize libsources here. This isn't really necessary,
5521 # since we currently assume there is only one configure.ac. But
5522 # that won't always be the case.
5523 %libsources = ();
5525 # Keep track of the youngest configure dependency.
5526 $configure_deps_greatest_timestamp = mtime $configure_ac;
5527 if (-e 'aclocal.m4')
5528 {
5529 my $mtime = mtime 'aclocal.m4';
5530 $configure_deps_greatest_timestamp = $mtime
5531 if $mtime > $configure_deps_greatest_timestamp;
5532 }
5534 scan_autoconf_traces ($configure_ac);
5536 @configure_input_files = sort keys %make_list;
5537 # Set input and output files if not specified by user.
5538 if (! @input_files)
5539 {
5540 @input_files = @configure_input_files;
5541 %output_files = %make_list;
5542 }
5545 if (! $seen_init_automake)
5546 {
5547 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5548 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5549 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5550 . "and that aclocal.m4 was recently regenerated "
5551 . "(using aclocal)");
5552 }
5553 else
5554 {
5555 if (! $seen_automake_version)
5556 {
5557 if (-f 'aclocal.m4')
5558 {
5559 error ($seen_init_automake,
5560 "your implementation of AM_INIT_AUTOMAKE comes from " .
5561 "an\nold Automake version. You should recreate " .
5562 "aclocal.m4\nwith aclocal and run automake again",
5563 # $? = 63 is used to indicate version mismatch to missing.
5564 exit_code => 63);
5565 }
5566 else
5567 {
5568 error ($seen_init_automake,
5569 "no proper implementation of AM_INIT_AUTOMAKE was " .
5570 "found,\nprobably because aclocal.m4 is missing.\n" .
5571 "You should run aclocal to create this file, then\n" .
5572 "run automake again");
5573 }
5574 }
5575 }
5577 locate_aux_dir ();
5579 # Look for some files we need. Always check for these. This
5580 # check must be done for every run, even those where we are only
5581 # looking at a subdir Makefile. We must set relative_dir for
5582 # push_required_file to work.
5583 # Sort the files for stable verbose output.
5584 $relative_dir = '.';
5585 foreach my $file (sort keys %required_aux_file)
5586 {
5587 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5588 }
5589 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5590 if -f $config_aux_dir . '/install.sh';
5592 # Preserve dist_common for later.
5593 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5595 }
5597 ################################################################
5599 # Set up for Cygnus mode.
5600 sub check_cygnus
5601 {
5602 my $cygnus = option 'cygnus';
5603 return unless $cygnus;
5605 # This feature is deprecated, will be removed in the next
5606 # Automake major release.
5607 msg 'obsolete', $cygnus->get,
5608 "support for Cygnus-style trees is deprecated";
5610 set_strictness ('foreign');
5611 set_option ('no-installinfo', $cygnus);
5612 set_option ('no-dependencies', $cygnus);
5613 set_option ('no-dist', $cygnus);
5615 err_ac "'AM_MAINTAINER_MODE' required when --cygnus specified"
5616 if !$seen_maint_mode;
5617 }
5619 # Do any extra checking for GNU standards.
5620 sub check_gnu_standards
5621 {
5622 if ($relative_dir eq '.')
5623 {
5624 # In top level (or only) directory.
5625 require_file ("$am_file.am", GNU,
5626 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5628 # Accept one of these three licenses; default to COPYING.
5629 # Make sure we do not overwrite an existing license.
5630 my $license;
5631 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5632 {
5633 if (-f $_)
5634 {
5635 $license = $_;
5636 last;
5637 }
5638 }
5639 require_file ("$am_file.am", GNU, 'COPYING')
5640 unless $license;
5641 }
5643 for my $opt ('no-installman', 'no-installinfo')
5644 {
5645 msg ('error-gnu', option $opt,
5646 "option '$opt' disallowed by GNU standards")
5647 if option $opt;
5648 }
5649 }
5651 # Do any extra checking for GNITS standards.
5652 sub check_gnits_standards
5653 {
5654 if ($relative_dir eq '.')
5655 {
5656 # In top level (or only) directory.
5657 require_file ("$am_file.am", GNITS, 'THANKS');
5658 }
5659 }
5661 ################################################################
5662 #
5663 # Functions to handle files of each language.
5665 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5666 # simple formula: Return value is LANG_SUBDIR if the resulting object
5667 # file should be in a subdir if the source file is, LANG_PROCESS if
5668 # file is to be dealt with, LANG_IGNORE otherwise.
5670 # Much of the actual processing is handled in
5671 # handle_single_transform. These functions exist so that
5672 # auxiliary information can be recorded for a later cleanup pass.
5673 # Note that the calls to these functions are computed, so don't bother
5674 # searching for their precise names in the source.
5676 # This is just a convenience function that can be used to determine
5677 # when a subdir object should be used.
5678 sub lang_sub_obj
5679 {
5680 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5681 }
5683 # Rewrite a single C source file.
5684 sub lang_c_rewrite
5685 {
5686 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5688 my $r = LANG_PROCESS;
5689 if (option 'subdir-objects')
5690 {
5691 $r = LANG_SUBDIR;
5692 if ($directory && $directory ne '.')
5693 {
5694 $base = $directory . '/' . $base;
5696 # libtool is always able to put the object at the proper place,
5697 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5698 msg_var ('portability', $var,
5699 "compiling '$base.c' in subdir requires "
5700 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5701 uniq_scope => US_GLOBAL,
5702 uniq_part => 'AM_PROG_CC_C_O subdir')
5703 unless $seen_cc_c_o || $obj eq '.lo';
5704 }
5705 }
5707 if (! $seen_cc_c_o
5708 && $have_per_exec_flags
5709 && ! option 'subdir-objects'
5710 && $obj ne '.lo')
5711 {
5712 msg_var ('portability',
5713 $var, "compiling '$base.c' with per-target flags requires "
5714 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5715 uniq_scope => US_GLOBAL,
5716 uniq_part => 'AM_PROG_CC_C_O per-target')
5717 }
5719 return $r;
5720 }
5722 # Rewrite a single header file.
5723 sub lang_header_rewrite
5724 {
5725 # Header files are simply ignored.
5726 return LANG_IGNORE;
5727 }
5729 # Rewrite a single Vala source file.
5730 sub lang_vala_rewrite
5731 {
5732 my ($directory, $base, $ext) = @_;
5734 (my $newext = $ext) =~ s/vala$/c/;
5735 return (LANG_SUBDIR, $newext);
5736 }
5738 # Rewrite a single yacc/yacc++ file.
5739 sub lang_yacc_rewrite
5740 {
5741 my ($directory, $base, $ext) = @_;
5743 my $r = &lang_sub_obj;
5744 (my $newext = $ext) =~ tr/y/c/;
5745 return ($r, $newext);
5746 }
5747 sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
5749 # Rewrite a single lex/lex++ file.
5750 sub lang_lex_rewrite
5751 {
5752 my ($directory, $base, $ext) = @_;
5754 my $r = &lang_sub_obj;
5755 (my $newext = $ext) =~ tr/l/c/;
5756 return ($r, $newext);
5757 }
5758 sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
5760 # Rewrite a single Java file.
5761 sub lang_java_rewrite
5762 {
5763 return LANG_SUBDIR;
5764 }
5766 # The lang_X_finish functions are called after all source file
5767 # processing is done. Each should handle defining rules for the
5768 # language, etc. A finish function is only called if a source file of
5769 # the appropriate type has been seen.
5771 sub lang_vala_finish_target ($$)
5772 {
5773 my ($self, $name) = @_;
5775 my $derived = canonicalize ($name);
5776 my $var = var "${derived}_SOURCES";
5777 return unless $var;
5779 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5781 # For automake bug#11229.
5782 return unless @vala_sources;
5784 foreach my $vala_file (@vala_sources)
5785 {
5786 my $c_file = $vala_file;
5787 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5788 {
5789 $c_file = "\$(srcdir)/$c_file";
5790 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5791 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5792 . "\t\@if test -f \$@; then :; else \\\n"
5793 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5794 . "\tfi\n";
5795 $clean_files{$c_file} = MAINTAINER_CLEAN;
5796 }
5797 }
5799 # Add rebuild rules for generated header and vapi files
5800 my $flags = var ($derived . '_VALAFLAGS');
5801 if ($flags)
5802 {
5803 my $lastflag = '';
5804 foreach my $flag ($flags->value_as_list_recursive)
5805 {
5806 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5807 '--vapi', '--internal-vapi', '--gir')))
5808 {
5809 my $headerfile = "\$(srcdir)/$flag";
5810 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5811 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5812 . "\t\@if test -f \$@; then :; else \\\n"
5813 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5814 . "\tfi\n";
5816 # valac is not used when building from dist tarballs
5817 # distribute the generated files
5818 push_dist_common ($headerfile);
5819 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5820 }
5821 $lastflag = $flag;
5822 }
5823 }
5825 my $compile = $self->compile;
5827 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5828 # rule into '${derived}_VALAFLAGS' if it exists.
5829 my $val = "${derived}_VALAFLAGS";
5830 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5831 if set_seen ($val);
5833 # VALAFLAGS is a user variable (per GNU Standards),
5834 # it should not be overridden in the Makefile...
5835 check_user_variables 'VALAFLAGS';
5837 my $dirname = dirname ($name);
5839 # Only generate C code, do not run C compiler
5840 $compile .= " -C";
5842 my $verbose = verbose_flag ('VALAC');
5843 my $silent = silent_flag ();
5844 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5846 $output_rules .=
5847 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5848 # Since the C files generated from the vala sources depend on the
5849 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5850 # those of the C files generated by the valac invocation below (this is
5851 # especially important on systems with sub-second timestamp resolution).
5852 # Thus we need to create the stamp file *before* invoking valac, and to
5853 # move it to its final location only after valac has been invoked.
5854 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5855 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5856 "\t${silent}mv -f \$\@-t \$\@\n";
5858 push_dist_common ($stampfile);
5860 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5861 }
5863 # Add output rules to invoke valac and create stamp file as a witness
5864 # to handle multiple outputs. This function is called after all source
5865 # file processing is done.
5866 sub lang_vala_finish
5867 {
5868 my ($self) = @_;
5870 foreach my $prog (keys %known_programs)
5871 {
5872 lang_vala_finish_target ($self, $prog);
5873 }
5875 while (my ($name) = each %known_libraries)
5876 {
5877 lang_vala_finish_target ($self, $name);
5878 }
5879 }
5881 # The built .c files should be cleaned only on maintainer-clean
5882 # as the .c files are distributed. This function is called for each
5883 # .vala source file.
5884 sub lang_vala_target_hook
5885 {
5886 my ($self, $aggregate, $output, $input, %transform) = @_;
5888 $clean_files{$output} = MAINTAINER_CLEAN;
5889 }
5891 # This is a yacc helper which is called whenever we have decided to
5892 # compile a yacc file.
5893 sub lang_yacc_target_hook
5894 {
5895 my ($self, $aggregate, $output, $input, %transform) = @_;
5897 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
5898 # have to to generate special code.
5899 my $yflags_contains_minus_d = 0;
5901 foreach my $pfx ("", "${aggregate}_")
5902 {
5903 my $yflagsvar = var ("${pfx}YFLAGS");
5904 next unless $yflagsvar;
5905 # We cannot work reliably with conditionally-defined YFLAGS.
5906 if ($yflagsvar->has_conditional_contents)
5907 {
5908 msg_var ('unsupported', $yflagsvar,
5909 "'${pfx}YFLAGS' cannot have conditional contents");
5910 }
5911 else
5912 {
5913 $yflags_contains_minus_d = 1
5914 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
5915 }
5916 }
5918 if ($yflags_contains_minus_d)
5919 {
5920 # Found a '-d' that applies to the compilation of this file.
5921 # Add a dependency for the generated header file, and arrange
5922 # for that file to be included in the distribution.
5924 # The extension of the output file (e.g., '.c' or '.cxx').
5925 # We'll need it to compute the name of the generated header file.
5926 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
5928 # We know that a yacc input should be turned into either a C or
5929 # C++ output file. We depend on this fact (here and in yacc.am),
5930 # so check that it really holds.
5931 my $lang = $languages{$extension_map{$output_ext}};
5932 prog_error "invalid output name '$output' for yacc file '$input'"
5933 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
5935 (my $header_ext = $output_ext) =~ s/c/h/g;
5936 # Quote $output_ext in the regexp, so that dots in it are taken
5937 # as literal dots, not as metacharacters.
5938 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
5940 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5941 RULE_AUTOMAKE, TRUE,
5942 INTERNAL))
5943 {
5944 my $condstr = $cond->subst_string;
5945 $output_rules .=
5946 "$condstr${header}: $output\n"
5947 # Recover from removal of $header
5948 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
5949 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
5950 }
5951 # Distribute the generated file, unless its .y source was
5952 # listed in a nodist_ variable. (&handle_source_transform
5953 # will set DIST_SOURCE.)
5954 &push_dist_common ($header)
5955 if $transform{'DIST_SOURCE'};
5957 # The GNU rules say that yacc/lex output files should be removed
5958 # by maintainer-clean. However, if the files are not distributed,
5959 # then we want to remove them with "make clean"; otherwise,
5960 # "make distcheck" will fail.
5961 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5962 }
5963 # See the comment above for $HEADER.
5964 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5965 }
5967 # This is a lex helper which is called whenever we have decided to
5968 # compile a lex file.
5969 sub lang_lex_target_hook
5970 {
5971 my ($self, $aggregate, $output, $input, %transform) = @_;
5972 # The GNU rules say that yacc/lex output files should be removed
5973 # by maintainer-clean. However, if the files are not distributed,
5974 # then we want to remove them with "make clean"; otherwise,
5975 # "make distcheck" will fail.
5976 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
5977 }
5979 # This is a helper for both lex and yacc.
5980 sub yacc_lex_finish_helper
5981 {
5982 return if defined $language_scratch{'lex-yacc-done'};
5983 $language_scratch{'lex-yacc-done'} = 1;
5985 # FIXME: for now, no line number.
5986 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5987 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5988 }
5990 sub lang_yacc_finish
5991 {
5992 return if defined $language_scratch{'yacc-done'};
5993 $language_scratch{'yacc-done'} = 1;
5995 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
5997 yacc_lex_finish_helper;
5998 }
6001 sub lang_lex_finish
6002 {
6003 return if defined $language_scratch{'lex-done'};
6004 $language_scratch{'lex-done'} = 1;
6006 yacc_lex_finish_helper;
6007 }
6010 # Given a hash table of linker names, pick the name that has the most
6011 # precedence. This is lame, but something has to have global
6012 # knowledge in order to eliminate the conflict. Add more linkers as
6013 # required.
6014 sub resolve_linker
6015 {
6016 my (%linkers) = @_;
6018 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6019 {
6020 return $l if defined $linkers{$l};
6021 }
6022 return 'LINK';
6023 }
6025 # Called to indicate that an extension was used.
6026 sub saw_extension
6027 {
6028 my ($ext) = @_;
6029 if (! defined $extension_seen{$ext})
6030 {
6031 $extension_seen{$ext} = 1;
6032 }
6033 else
6034 {
6035 ++$extension_seen{$ext};
6036 }
6037 }
6039 # Return the number of files seen for a given language. Knows about
6040 # special cases we care about. FIXME: this is hideous. We need
6041 # something that involves real language objects. For instance yacc
6042 # and yaccxx could both derive from a common yacc class which would
6043 # know about the strange ylwrap requirement. (Or better yet we could
6044 # just not support legacy yacc!)
6045 sub count_files_for_language
6046 {
6047 my ($name) = @_;
6049 my @names;
6050 if ($name eq 'yacc' || $name eq 'yaccxx')
6051 {
6052 @names = ('yacc', 'yaccxx');
6053 }
6054 elsif ($name eq 'lex' || $name eq 'lexxx')
6055 {
6056 @names = ('lex', 'lexxx');
6057 }
6058 else
6059 {
6060 @names = ($name);
6061 }
6063 my $r = 0;
6064 foreach $name (@names)
6065 {
6066 my $lang = $languages{$name};
6067 foreach my $ext (@{$lang->extensions})
6068 {
6069 $r += $extension_seen{$ext}
6070 if defined $extension_seen{$ext};
6071 }
6072 }
6074 return $r
6075 }
6077 # Called to ask whether source files have been seen . If HEADERS is 1,
6078 # headers can be included.
6079 sub saw_sources_p
6080 {
6081 my ($headers) = @_;
6083 # count all the sources
6084 my $count = 0;
6085 foreach my $val (values %extension_seen)
6086 {
6087 $count += $val;
6088 }
6090 if (!$headers)
6091 {
6092 $count -= count_files_for_language ('header');
6093 }
6095 return $count > 0;
6096 }
6099 # register_language (%ATTRIBUTE)
6100 # ------------------------------
6101 # Register a single language.
6102 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6103 sub register_language (%)
6104 {
6105 my (%option) = @_;
6107 # Set the defaults.
6108 $option{'autodep'} = 'no'
6109 unless defined $option{'autodep'};
6110 $option{'linker'} = ''
6111 unless defined $option{'linker'};
6112 $option{'flags'} = []
6113 unless defined $option{'flags'};
6114 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6115 unless defined $option{'output_extensions'};
6116 $option{'nodist_specific'} = 0
6117 unless defined $option{'nodist_specific'};
6119 my $lang = new Language (%option);
6121 # Fill indexes.
6122 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6123 $languages{$lang->name} = $lang;
6124 my $link = $lang->linker;
6125 if ($link)
6126 {
6127 if (exists $link_languages{$link})
6128 {
6129 prog_error ("'$link' has different definitions in "
6130 . $lang->name . " and " . $link_languages{$link}->name)
6131 if $lang->link ne $link_languages{$link}->link;
6132 }
6133 else
6134 {
6135 $link_languages{$link} = $lang;
6136 }
6137 }
6139 # Update the pattern of known extensions.
6140 accept_extensions (@{$lang->extensions});
6142 # Upate the $suffix_rule map.
6143 foreach my $suffix (@{$lang->extensions})
6144 {
6145 foreach my $dest (&{$lang->output_extensions} ($suffix))
6146 {
6147 register_suffix_rule (INTERNAL, $suffix, $dest);
6148 }
6149 }
6150 }
6152 # derive_suffix ($EXT, $OBJ)
6153 # --------------------------
6154 # This function is used to find a path from a user-specified suffix $EXT
6155 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6156 sub derive_suffix ($$)
6157 {
6158 my ($source_ext, $obj) = @_;
6160 while (! $extension_map{$source_ext}
6161 && $source_ext ne $obj
6162 && exists $suffix_rules->{$source_ext}
6163 && exists $suffix_rules->{$source_ext}{$obj})
6164 {
6165 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6166 }
6168 return $source_ext;
6169 }
6172 ################################################################
6174 # Pretty-print something and append to output_rules.
6175 sub pretty_print_rule
6176 {
6177 $output_rules .= &makefile_wrap (@_);
6178 }
6181 ################################################################
6184 ## -------------------------------- ##
6185 ## Handling the conditional stack. ##
6186 ## -------------------------------- ##
6189 # $STRING
6190 # make_conditional_string ($NEGATE, $COND)
6191 # ----------------------------------------
6192 sub make_conditional_string ($$)
6193 {
6194 my ($negate, $cond) = @_;
6195 $cond = "${cond}_TRUE"
6196 unless $cond =~ /^TRUE|FALSE$/;
6197 $cond = Automake::Condition::conditional_negate ($cond)
6198 if $negate;
6199 return $cond;
6200 }
6203 my %_am_macro_for_cond =
6204 (
6205 AMDEP => "one of the compiler tests\n"
6206 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6207 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6208 am__fastdepCC => 'AC_PROG_CC',
6209 am__fastdepCCAS => 'AM_PROG_AS',
6210 am__fastdepCXX => 'AC_PROG_CXX',
6211 am__fastdepGCJ => 'AM_PROG_GCJ',
6212 am__fastdepOBJC => 'AC_PROG_OBJC',
6213 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6214 am__fastdepUPC => 'AM_PROG_UPC'
6215 );
6217 # $COND
6218 # cond_stack_if ($NEGATE, $COND, $WHERE)
6219 # --------------------------------------
6220 sub cond_stack_if ($$$)
6221 {
6222 my ($negate, $cond, $where) = @_;
6224 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6225 {
6226 my $text = "$cond does not appear in AM_CONDITIONAL";
6227 my $scope = US_LOCAL;
6228 if (exists $_am_macro_for_cond{$cond})
6229 {
6230 my $mac = $_am_macro_for_cond{$cond};
6231 $text .= "\n The usual way to define '$cond' is to add ";
6232 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6233 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6234 # These warnings appear in Automake files (depend2.am),
6235 # so there is no need to display them more than once:
6236 $scope = US_GLOBAL;
6237 }
6238 error $where, $text, uniq_scope => $scope;
6239 }
6241 push (@cond_stack, make_conditional_string ($negate, $cond));
6243 return new Automake::Condition (@cond_stack);
6244 }
6247 # $COND
6248 # cond_stack_else ($NEGATE, $COND, $WHERE)
6249 # ----------------------------------------
6250 sub cond_stack_else ($$$)
6251 {
6252 my ($negate, $cond, $where) = @_;
6254 if (! @cond_stack)
6255 {
6256 error $where, "else without if";
6257 return FALSE;
6258 }
6260 $cond_stack[$#cond_stack] =
6261 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6263 # If $COND is given, check against it.
6264 if (defined $cond)
6265 {
6266 $cond = make_conditional_string ($negate, $cond);
6268 error ($where, "else reminder ($negate$cond) incompatible with "
6269 . "current conditional: $cond_stack[$#cond_stack]")
6270 if $cond_stack[$#cond_stack] ne $cond;
6271 }
6273 return new Automake::Condition (@cond_stack);
6274 }
6277 # $COND
6278 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6279 # -----------------------------------------
6280 sub cond_stack_endif ($$$)
6281 {
6282 my ($negate, $cond, $where) = @_;
6283 my $old_cond;
6285 if (! @cond_stack)
6286 {
6287 error $where, "endif without if";
6288 return TRUE;
6289 }
6291 # If $COND is given, check against it.
6292 if (defined $cond)
6293 {
6294 $cond = make_conditional_string ($negate, $cond);
6296 error ($where, "endif reminder ($negate$cond) incompatible with "
6297 . "current conditional: $cond_stack[$#cond_stack]")
6298 if $cond_stack[$#cond_stack] ne $cond;
6299 }
6301 pop @cond_stack;
6303 return new Automake::Condition (@cond_stack);
6304 }
6310 ## ------------------------ ##
6311 ## Handling the variables. ##
6312 ## ------------------------ ##
6315 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6316 # -----------------------------------------------------
6317 # Like define_variable, but the value is a list, and the variable may
6318 # be defined conditionally. The second argument is the condition
6319 # under which the value should be defined; this should be the empty
6320 # string to define the variable unconditionally. The third argument
6321 # is a list holding the values to use for the variable. The value is
6322 # pretty printed in the output file.
6323 sub define_pretty_variable ($$$@)
6324 {
6325 my ($var, $cond, $where, @value) = @_;
6327 if (! vardef ($var, $cond))
6328 {
6329 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6330 '', $where, VAR_PRETTY);
6331 rvar ($var)->rdef ($cond)->set_seen;
6332 }
6333 }
6336 # define_variable ($VAR, $VALUE, $WHERE)
6337 # --------------------------------------
6338 # Define a new Automake Makefile variable VAR to VALUE, but only if
6339 # not already defined.
6340 sub define_variable ($$$)
6341 {
6342 my ($var, $value, $where) = @_;
6343 define_pretty_variable ($var, TRUE, $where, $value);
6344 }
6347 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6348 # ------------------------------------------------------------
6349 # Define the $VAR which content is the list of file names composed of
6350 # a @BASENAME and the $EXTENSION.
6351 sub define_files_variable ($\@$$)
6352 {
6353 my ($var, $basename, $extension, $where) = @_;
6354 define_variable ($var,
6355 join (' ', map { "$_.$extension" } @$basename),
6356 $where);
6357 }
6360 # Like define_variable, but define a variable to be the configure
6361 # substitution by the same name.
6362 sub define_configure_variable ($)
6363 {
6364 my ($var) = @_;
6365 # Some variables we do not want to output. For instance it
6366 # would be a bad idea to output `U = @U@` when `@U@` can be
6367 # substituted as `\`.
6368 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6369 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6370 '', $configure_vars{$var}, $pretty);
6371 }
6374 # define_compiler_variable ($LANG)
6375 # --------------------------------
6376 # Define a compiler variable. We also handle defining the 'LT'
6377 # version of the command when using libtool.
6378 sub define_compiler_variable ($)
6379 {
6380 my ($lang) = @_;
6382 my ($var, $value) = ($lang->compiler, $lang->compile);
6383 my $libtool_tag = '';
6384 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6385 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6386 &define_variable ($var, $value, INTERNAL);
6387 if (var ('LIBTOOL'))
6388 {
6389 my $verbose = define_verbose_libtool ();
6390 &define_variable ("LT$var",
6391 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6392 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6393 INTERNAL);
6394 }
6395 define_verbose_tagvar ($lang->ccer || 'GEN');
6396 }
6399 # define_linker_variable ($LANG)
6400 # ------------------------------
6401 # Define linker variables.
6402 sub define_linker_variable ($)
6403 {
6404 my ($lang) = @_;
6406 my $libtool_tag = '';
6407 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6408 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6409 # CCLD = $(CC).
6410 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6411 # CCLINK = $(CCLD) blah blah...
6412 my $link = '';
6413 if (var ('LIBTOOL'))
6414 {
6415 my $verbose = define_verbose_libtool ();
6416 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6417 . "\$(LIBTOOLFLAGS) --mode=link ";
6418 }
6419 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6420 &define_variable ($lang->compiler, $lang);
6421 &define_verbose_tagvar ($lang->lder || 'GEN');
6422 }
6424 sub define_per_target_linker_variable ($$)
6425 {
6426 my ($linker, $target) = @_;
6428 # If the user wrote a custom link command, we don't define ours.
6429 return "${target}_LINK"
6430 if set_seen "${target}_LINK";
6432 my $xlink = $linker ? $linker : 'LINK';
6434 my $lang = $link_languages{$xlink};
6435 prog_error "Unknown language for linker variable '$xlink'"
6436 unless $lang;
6438 my $link_command = $lang->link;
6439 if (var 'LIBTOOL')
6440 {
6441 my $libtool_tag = '';
6442 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6443 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6445 my $verbose = define_verbose_libtool ();
6446 $link_command =
6447 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6448 . "--mode=link " . $link_command;
6449 }
6451 # Rewrite each occurrence of 'AM_$flag' in the link
6452 # command into '${derived}_$flag' if it exists.
6453 my $orig_command = $link_command;
6454 my @flags = (@{$lang->flags}, 'LDFLAGS');
6455 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6456 for my $flag (@flags)
6457 {
6458 my $val = "${target}_$flag";
6459 $link_command =~ s/\(AM_$flag\)/\($val\)/
6460 if set_seen ($val);
6461 }
6463 # If the computed command is the same as the generic command, use
6464 # the command linker variable.
6465 return ($lang->linker, $lang->lder)
6466 if $link_command eq $orig_command;
6468 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6469 return ("${target}_LINK", $lang->lder);
6470 }
6472 ################################################################
6474 # &check_trailing_slash ($WHERE, $LINE)
6475 # -------------------------------------
6476 # Return 1 iff $LINE ends with a slash.
6477 # Might modify $LINE.
6478 sub check_trailing_slash ($\$)
6479 {
6480 my ($where, $line) = @_;
6482 # Ignore '##' lines.
6483 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6485 # Catch and fix a common error.
6486 msg "syntax", $where, "whitespace following trailing backslash"
6487 if $$line =~ s/\\\s+\n$/\\\n/;
6489 return $$line =~ /\\$/;
6490 }
6493 # &read_am_file ($AMFILE, $WHERE)
6494 # -------------------------------
6495 # Read Makefile.am and set up %contents. Simultaneously copy lines
6496 # from Makefile.am into $output_trailer, or define variables as
6497 # appropriate. NOTE we put rules in the trailer section. We want
6498 # user rules to come after our generated stuff.
6499 sub read_am_file ($$)
6500 {
6501 my ($amfile, $where) = @_;
6503 my $am_file = new Automake::XFile ("< $amfile");
6504 verb "reading $amfile";
6506 # Keep track of the youngest output dependency.
6507 my $mtime = mtime $amfile;
6508 $output_deps_greatest_timestamp = $mtime
6509 if $mtime > $output_deps_greatest_timestamp;
6511 my $spacing = '';
6512 my $comment = '';
6513 my $blank = 0;
6514 my $saw_bk = 0;
6515 my $var_look = VAR_ASIS;
6517 use constant IN_VAR_DEF => 0;
6518 use constant IN_RULE_DEF => 1;
6519 use constant IN_COMMENT => 2;
6520 my $prev_state = IN_RULE_DEF;
6522 while ($_ = $am_file->getline)
6523 {
6524 $where->set ("$amfile:$.");
6525 if (/$IGNORE_PATTERN/o)
6526 {
6527 # Merely delete comments beginning with two hashes.
6528 }
6529 elsif (/$WHITE_PATTERN/o)
6530 {
6531 error $where, "blank line following trailing backslash"
6532 if $saw_bk;
6533 # Stick a single white line before the incoming macro or rule.
6534 $spacing = "\n";
6535 $blank = 1;
6536 # Flush all comments seen so far.
6537 if ($comment ne '')
6538 {
6539 $output_vars .= $comment;
6540 $comment = '';
6541 }
6542 }
6543 elsif (/$COMMENT_PATTERN/o)
6544 {
6545 # Stick comments before the incoming macro or rule. Make
6546 # sure a blank line precedes the first block of comments.
6547 $spacing = "\n" unless $blank;
6548 $blank = 1;
6549 $comment .= $spacing . $_;
6550 $spacing = '';
6551 $prev_state = IN_COMMENT;
6552 }
6553 else
6554 {
6555 last;
6556 }
6557 $saw_bk = check_trailing_slash ($where, $_);
6558 }
6560 # We save the conditional stack on entry, and then check to make
6561 # sure it is the same on exit. This lets us conditionally include
6562 # other files.
6563 my @saved_cond_stack = @cond_stack;
6564 my $cond = new Automake::Condition (@cond_stack);
6566 my $last_var_name = '';
6567 my $last_var_type = '';
6568 my $last_var_value = '';
6569 my $last_where;
6570 # FIXME: shouldn't use $_ in this loop; it is too big.
6571 while ($_)
6572 {
6573 $where->set ("$amfile:$.");
6575 # Make sure the line is \n-terminated.
6576 chomp;
6577 $_ .= "\n";
6579 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6580 # used by users. @MAINT@ is an anachronism now.
6581 $_ =~ s/\@MAINT\@//g
6582 unless $seen_maint_mode;
6584 my $new_saw_bk = check_trailing_slash ($where, $_);
6586 if (/$IGNORE_PATTERN/o)
6587 {
6588 # Merely delete comments beginning with two hashes.
6590 # Keep any backslash from the previous line.
6591 $new_saw_bk = $saw_bk;
6592 }
6593 elsif (/$WHITE_PATTERN/o)
6594 {
6595 # Stick a single white line before the incoming macro or rule.
6596 $spacing = "\n";
6597 error $where, "blank line following trailing backslash"
6598 if $saw_bk;
6599 }
6600 elsif (/$COMMENT_PATTERN/o)
6601 {
6602 error $where, "comment following trailing backslash"
6603 if $saw_bk && $prev_state != IN_COMMENT;
6605 # Stick comments before the incoming macro or rule.
6606 $comment .= $spacing . $_;
6607 $spacing = '';
6608 $prev_state = IN_COMMENT;
6609 }
6610 elsif ($saw_bk)
6611 {
6612 if ($prev_state == IN_RULE_DEF)
6613 {
6614 my $cond = new Automake::Condition @cond_stack;
6615 $output_trailer .= $cond->subst_string;
6616 $output_trailer .= $_;
6617 }
6618 elsif ($prev_state == IN_COMMENT)
6619 {
6620 # If the line doesn't start with a '#', add it.
6621 # We do this because a continued comment like
6622 # # A = foo \
6623 # bar \
6624 # baz
6625 # is not portable. BSD make doesn't honor
6626 # escaped newlines in comments.
6627 s/^#?/#/;
6628 $comment .= $spacing . $_;
6629 }
6630 else # $prev_state == IN_VAR_DEF
6631 {
6632 $last_var_value .= ' '
6633 unless $last_var_value =~ /\s$/;
6634 $last_var_value .= $_;
6636 if (!/\\$/)
6637 {
6638 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6639 $last_var_type, $cond,
6640 $last_var_value, $comment,
6641 $last_where, VAR_ASIS)
6642 if $cond != FALSE;
6643 $comment = $spacing = '';
6644 }
6645 }
6646 }
6648 elsif (/$IF_PATTERN/o)
6649 {
6650 $cond = cond_stack_if ($1, $2, $where);
6651 }
6652 elsif (/$ELSE_PATTERN/o)
6653 {
6654 $cond = cond_stack_else ($1, $2, $where);
6655 }
6656 elsif (/$ENDIF_PATTERN/o)
6657 {
6658 $cond = cond_stack_endif ($1, $2, $where);
6659 }
6661 elsif (/$RULE_PATTERN/o)
6662 {
6663 # Found a rule.
6664 $prev_state = IN_RULE_DEF;
6666 # For now we have to output all definitions of user rules
6667 # and can't diagnose duplicates (see the comment in
6668 # Automake::Rule::define). So we go on and ignore the return value.
6669 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6671 check_variable_expansions ($_, $where);
6673 $output_trailer .= $comment . $spacing;
6674 my $cond = new Automake::Condition @cond_stack;
6675 $output_trailer .= $cond->subst_string;
6676 $output_trailer .= $_;
6677 $comment = $spacing = '';
6678 }
6679 elsif (/$ASSIGNMENT_PATTERN/o)
6680 {
6681 # Found a macro definition.
6682 $prev_state = IN_VAR_DEF;
6683 $last_var_name = $1;
6684 $last_var_type = $2;
6685 $last_var_value = $3;
6686 $last_where = $where->clone;
6687 if ($3 ne '' && substr ($3, -1) eq "\\")
6688 {
6689 # We preserve the '\' because otherwise the long lines
6690 # that are generated will be truncated by broken
6691 # 'sed's.
6692 $last_var_value = $3 . "\n";
6693 }
6694 # Normally we try to output variable definitions in the
6695 # same format they were input. However, POSIX compliant
6696 # systems are not required to support lines longer than
6697 # 2048 bytes (most notably, some sed implementation are
6698 # limited to 4000 bytes, and sed is used by config.status
6699 # to rewrite Makefile.in into Makefile). Moreover nobody
6700 # would really write such long lines by hand since it is
6701 # hardly maintainable. So if a line is longer that 1000
6702 # bytes (an arbitrary limit), assume it has been
6703 # automatically generated by some tools, and flatten the
6704 # variable definition. Otherwise, keep the variable as it
6705 # as been input.
6706 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6708 if (!/\\$/)
6709 {
6710 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6711 $last_var_type, $cond,
6712 $last_var_value, $comment,
6713 $last_where, $var_look)
6714 if $cond != FALSE;
6715 $comment = $spacing = '';
6716 $var_look = VAR_ASIS;
6717 }
6718 }
6719 elsif (/$INCLUDE_PATTERN/o)
6720 {
6721 my $path = $1;
6723 if ($path =~ s/^\$\(top_srcdir\)\///)
6724 {
6725 push (@include_stack, "\$\(top_srcdir\)/$path");
6726 # Distribute any included file.
6728 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6729 # otherwise OSF make will implicitly copy the included
6730 # file in the build tree during "make distdir" to satisfy
6731 # the dependency.
6732 # (subdircond2.test and subdircond3.test will fail.)
6733 push_dist_common ("\$\(top_srcdir\)/$path");
6734 }
6735 else
6736 {
6737 $path =~ s/\$\(srcdir\)\///;
6738 push (@include_stack, "\$\(srcdir\)/$path");
6739 # Always use the $(srcdir) prefix in DIST_COMMON,
6740 # otherwise OSF make will implicitly copy the included
6741 # file in the build tree during "make distdir" to satisfy
6742 # the dependency.
6743 # (subdircond2.test and subdircond3.test will fail.)
6744 push_dist_common ("\$\(srcdir\)/$path");
6745 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6746 }
6747 $where->push_context ("'$path' included from here");
6748 &read_am_file ($path, $where);
6749 $where->pop_context;
6750 }
6751 else
6752 {
6753 # This isn't an error; it is probably a continued rule.
6754 # In fact, this is what we assume.
6755 $prev_state = IN_RULE_DEF;
6756 check_variable_expansions ($_, $where);
6757 $output_trailer .= $comment . $spacing;
6758 my $cond = new Automake::Condition @cond_stack;
6759 $output_trailer .= $cond->subst_string;
6760 $output_trailer .= $_;
6761 $comment = $spacing = '';
6762 error $where, "'#' comment at start of rule is unportable"
6763 if $_ =~ /^\t\s*\#/;
6764 }
6766 $saw_bk = $new_saw_bk;
6767 $_ = $am_file->getline;
6768 }
6770 $output_trailer .= $comment;
6772 error ($where, "trailing backslash on last line")
6773 if $saw_bk;
6775 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6776 : "too many conditionals closed in include file"))
6777 if "@saved_cond_stack" ne "@cond_stack";
6778 }
6781 # define_standard_variables ()
6782 # ----------------------------
6783 # A helper for read_main_am_file which initializes configure variables
6784 # and variables from header-vars.am.
6785 sub define_standard_variables
6786 {
6787 my $saved_output_vars = $output_vars;
6788 my ($comments, undef, $rules) =
6789 file_contents_internal (1, "$libdir/am/header-vars.am",
6790 new Automake::Location);
6792 foreach my $var (sort keys %configure_vars)
6793 {
6794 &define_configure_variable ($var);
6795 }
6797 $output_vars .= $comments . $rules;
6798 }
6800 # Read main am file.
6801 sub read_main_am_file ($$)
6802 {
6803 my ($amfile, $infile) = @_;
6805 # This supports the strange variable tricks we are about to play.
6806 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6807 if (scalar (variables) > 0);
6809 # Generate copyright header for generated Makefile.in.
6810 # We do discard the output of predefined variables, handled below.
6811 $output_vars = ("# " . basename ($infile) . " generated by automake "
6812 . $VERSION . " from " . basename ($amfile) . ".\n");
6813 $output_vars .= '# ' . subst ('configure_input') . "\n";
6814 $output_vars .= $gen_copyright;
6816 # We want to predefine as many variables as possible. This lets
6817 # the user set them with '+=' in Makefile.am.
6818 &define_standard_variables;
6820 # Read user file, which might override some of our values.
6821 &read_am_file ($amfile, new Automake::Location);
6822 }
6826 ################################################################
6828 # $FLATTENED
6829 # &flatten ($STRING)
6830 # ------------------
6831 # Flatten the $STRING and return the result.
6832 sub flatten
6833 {
6834 $_ = shift;
6836 s/\\\n//somg;
6837 s/\s+/ /g;
6838 s/^ //;
6839 s/ $//;
6841 return $_;
6842 }
6845 # transform_token ($TOKEN, \%PAIRS, $KEY)
6846 # =======================================
6847 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6848 # (which should be ?KEY? or any of the special %% requests)..
6849 sub transform_token ($$$)
6850 {
6851 my ($token, $transform, $key) = @_;
6852 my $res = $transform->{$key};
6853 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6854 return $res;
6855 }
6858 # transform ($TOKEN, \%PAIRS)
6859 # ===========================
6860 # If ($TOKEN, $VAL) is in %PAIRS:
6861 # - replaces %KEY% with $VAL,
6862 # - enables/disables ?KEY? and ?!KEY?,
6863 # - replaces %?KEY% with TRUE or FALSE.
6864 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6865 # IFTRUE / IFFALSE, as appropriate.
6866 sub transform ($$)
6867 {
6868 my ($token, $transform) = @_;
6870 # %KEY%.
6871 # Must be before the following pattern to exclude the case
6872 # when there is neither IFTRUE nor IFFALSE.
6873 if ($token =~ /^%([\w\-]+)%$/)
6874 {
6875 return transform_token ($token, $transform, $1);
6876 }
6877 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6878 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6879 {
6880 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6881 }
6882 # %?KEY%.
6883 elsif ($token =~ /^%\?([\w\-]+)%$/)
6884 {
6885 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6886 }
6887 # ?KEY? and ?!KEY?.
6888 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6889 {
6890 my $neg = ($1 eq '!') ? 1 : 0;
6891 my $val = transform_token ($token, $transform, $2);
6892 return (!!$val == $neg) ? '##%' : '';
6893 }
6894 else
6895 {
6896 prog_error "Unknown request format: $token";
6897 }
6898 }
6900 # $TEXT
6901 # preprocess_file ($MAKEFILE, [%TRANSFORM])
6902 # -----------------------------------------
6903 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
6904 # No extra parsing or post-processing is done (i.e., recognition of
6905 # rules declaration or of make variables definitions).
6906 sub preprocess_file ($%)
6907 {
6908 my ($file, %transform) = @_;
6910 # Complete %transform with global options.
6911 # Note that %transform goes last, so it overrides global options.
6912 %transform = ('CYGNUS' => !! option 'cygnus',
6913 'MAINTAINER-MODE'
6914 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6916 'XZ' => !! option 'dist-xz',
6917 'LZIP' => !! option 'dist-lzip',
6918 'BZIP2' => !! option 'dist-bzip2',
6919 'COMPRESS' => !! option 'dist-tarZ',
6920 'GZIP' => ! option 'no-dist-gzip',
6921 'SHAR' => !! option 'dist-shar',
6922 'ZIP' => !! option 'dist-zip',
6924 'INSTALL-INFO' => ! option 'no-installinfo',
6925 'INSTALL-MAN' => ! option 'no-installman',
6926 'HAVE-MANS' => !! var ('MANS'),
6927 'CK-NEWS' => !! option 'check-news',
6929 'SUBDIRS' => !! var ('SUBDIRS'),
6930 'TOPDIR_P' => $relative_dir eq '.',
6932 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6933 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6934 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6936 'LIBTOOL' => !! var ('LIBTOOL'),
6937 'NONLIBTOOL' => 1,
6938 %transform);
6940 if (! defined ($_ = $am_file_cache{$file}))
6941 {
6942 verb "reading $file";
6943 # Swallow the whole file.
6944 my $fc_file = new Automake::XFile "< $file";
6945 my $saved_dollar_slash = $/;
6946 undef $/;
6947 $_ = $fc_file->getline;
6948 $/ = $saved_dollar_slash;
6949 $fc_file->close;
6950 # Remove ##-comments.
6951 # Besides we don't need more than two consecutive new-lines.
6952 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6953 # Remember the contents of the just-read file.
6954 $am_file_cache{$file} = $_;
6955 }
6957 # Substitute Automake template tokens.
6958 s/(?: % \?? [\w\-]+ %
6959 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
6960 | \? !? [\w\-]+ \?
6961 )/transform($&, \%transform)/gex;
6962 # transform() may have added some ##%-comments to strip.
6963 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
6964 # ####### and do not remove the latter.)
6965 s/^[ \t]*(?:##%)+.*\n//gm;
6967 return $_;
6968 }
6971 # @PARAGRAPHS
6972 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6973 # ------------------------------------------
6974 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6975 # paragraphs.
6976 sub make_paragraphs ($%)
6977 {
6978 my ($file, %transform) = @_;
6979 $transform{FIRST} = !$transformed_files{$file};
6980 $transformed_files{$file} = 1;
6982 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
6983 my @res;
6985 while (defined ($_ = shift @lines))
6986 {
6987 my $paragraph = $_;
6988 # If we are a rule, eat as long as we start with a tab.
6989 if (/$RULE_PATTERN/smo)
6990 {
6991 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6992 {
6993 $paragraph .= "\n$_";
6994 }
6995 unshift (@lines, $_);
6996 }
6998 # If we are a comments, eat as much comments as you can.
6999 elsif (/$COMMENT_PATTERN/smo)
7000 {
7001 while (defined ($_ = shift @lines)
7002 && $_ =~ /$COMMENT_PATTERN/smo)
7003 {
7004 $paragraph .= "\n$_";
7005 }
7006 unshift (@lines, $_);
7007 }
7009 push @res, $paragraph;
7010 }
7012 return @res;
7013 }
7017 # ($COMMENT, $VARIABLES, $RULES)
7018 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7019 # -------------------------------------------------------------
7020 # Return contents of a file from $libdir/am, automatically skipping
7021 # macros or rules which are already known. $IS_AM iff the caller is
7022 # reading an Automake file (as opposed to the user's Makefile.am).
7023 sub file_contents_internal ($$$%)
7024 {
7025 my ($is_am, $file, $where, %transform) = @_;
7027 $where->set ($file);
7029 my $result_vars = '';
7030 my $result_rules = '';
7031 my $comment = '';
7032 my $spacing = '';
7034 # The following flags are used to track rules spanning across
7035 # multiple paragraphs.
7036 my $is_rule = 0; # 1 if we are processing a rule.
7037 my $discard_rule = 0; # 1 if the current rule should not be output.
7039 # We save the conditional stack on entry, and then check to make
7040 # sure it is the same on exit. This lets us conditionally include
7041 # other files.
7042 my @saved_cond_stack = @cond_stack;
7043 my $cond = new Automake::Condition (@cond_stack);
7045 foreach (make_paragraphs ($file, %transform))
7046 {
7047 # FIXME: no line number available.
7048 $where->set ($file);
7050 # Sanity checks.
7051 error $where, "blank line following trailing backslash:\n$_"
7052 if /\\$/;
7053 error $where, "comment following trailing backslash:\n$_"
7054 if /\\#/;
7056 if (/^$/)
7057 {
7058 $is_rule = 0;
7059 # Stick empty line before the incoming macro or rule.
7060 $spacing = "\n";
7061 }
7062 elsif (/$COMMENT_PATTERN/mso)
7063 {
7064 $is_rule = 0;
7065 # Stick comments before the incoming macro or rule.
7066 $comment = "$_\n";
7067 }
7069 # Handle inclusion of other files.
7070 elsif (/$INCLUDE_PATTERN/o)
7071 {
7072 if ($cond != FALSE)
7073 {
7074 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7075 $where->push_context ("'$file' included from here");
7076 # N-ary '.=' fails.
7077 my ($com, $vars, $rules)
7078 = file_contents_internal ($is_am, $file, $where, %transform);
7079 $where->pop_context;
7080 $comment .= $com;
7081 $result_vars .= $vars;
7082 $result_rules .= $rules;
7083 }
7084 }
7086 # Handling the conditionals.
7087 elsif (/$IF_PATTERN/o)
7088 {
7089 $cond = cond_stack_if ($1, $2, $file);
7090 }
7091 elsif (/$ELSE_PATTERN/o)
7092 {
7093 $cond = cond_stack_else ($1, $2, $file);
7094 }
7095 elsif (/$ENDIF_PATTERN/o)
7096 {
7097 $cond = cond_stack_endif ($1, $2, $file);
7098 }
7100 # Handling rules.
7101 elsif (/$RULE_PATTERN/mso)
7102 {
7103 $is_rule = 1;
7104 $discard_rule = 0;
7105 # Separate relationship from optional actions: the first
7106 # `new-line tab" not preceded by backslash (continuation
7107 # line).
7108 my $paragraph = $_;
7109 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7110 my ($relationship, $actions) = ($1, $2 || '');
7112 # Separate targets from dependencies: the first colon.
7113 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7114 my ($targets, $dependencies) = ($1, $2);
7115 # Remove the escaped new lines.
7116 # I don't know why, but I have to use a tmp $flat_deps.
7117 my $flat_deps = &flatten ($dependencies);
7118 my @deps = split (' ', $flat_deps);
7120 foreach (split (' ', $targets))
7121 {
7122 # FIXME: 1. We are not robust to people defining several targets
7123 # at once, only some of them being in %dependencies. The
7124 # actions from the targets in %dependencies are usually generated
7125 # from the content of %actions, but if some targets in $targets
7126 # are not in %dependencies the ELSE branch will output
7127 # a rule for all $targets (i.e. the targets which are both
7128 # in %dependencies and $targets will have two rules).
7130 # FIXME: 2. The logic here is not able to output a
7131 # multi-paragraph rule several time (e.g. for each condition
7132 # it is defined for) because it only knows the first paragraph.
7134 # FIXME: 3. We are not robust to people defining a subset
7135 # of a previously defined "multiple-target" rule. E.g.
7136 # 'foo:' after 'foo bar:'.
7138 # Output only if not in FALSE.
7139 if (defined $dependencies{$_} && $cond != FALSE)
7140 {
7141 &depend ($_, @deps);
7142 register_action ($_, $actions);
7143 }
7144 else
7145 {
7146 # Free-lance dependency. Output the rule for all the
7147 # targets instead of one by one.
7148 my @undefined_conds =
7149 Automake::Rule::define ($targets, $file,
7150 $is_am ? RULE_AUTOMAKE : RULE_USER,
7151 $cond, $where);
7152 for my $undefined_cond (@undefined_conds)
7153 {
7154 my $condparagraph = $paragraph;
7155 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7156 $result_rules .= "$spacing$comment$condparagraph\n";
7157 }
7158 if (scalar @undefined_conds == 0)
7159 {
7160 # Remember to discard next paragraphs
7161 # if they belong to this rule.
7162 # (but see also FIXME: #2 above.)
7163 $discard_rule = 1;
7164 }
7165 $comment = $spacing = '';
7166 last;
7167 }
7168 }
7169 }
7171 elsif (/$ASSIGNMENT_PATTERN/mso)
7172 {
7173 my ($var, $type, $val) = ($1, $2, $3);
7174 error $where, "variable '$var' with trailing backslash"
7175 if /\\$/;
7177 $is_rule = 0;
7179 Automake::Variable::define ($var,
7180 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7181 $type, $cond, $val, $comment, $where,
7182 VAR_ASIS)
7183 if $cond != FALSE;
7185 $comment = $spacing = '';
7186 }
7187 else
7188 {
7189 # This isn't an error; it is probably some tokens which
7190 # configure is supposed to replace, such as '@SET-MAKE@',
7191 # or some part of a rule cut by an if/endif.
7192 if (! $cond->false && ! ($is_rule && $discard_rule))
7193 {
7194 s/^/$cond->subst_string/gme;
7195 $result_rules .= "$spacing$comment$_\n";
7196 }
7197 $comment = $spacing = '';
7198 }
7199 }
7201 error ($where, @cond_stack ?
7202 "unterminated conditionals: @cond_stack" :
7203 "too many conditionals closed in include file")
7204 if "@saved_cond_stack" ne "@cond_stack";
7206 return ($comment, $result_vars, $result_rules);
7207 }
7210 # $CONTENTS
7211 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7212 # ------------------------------------------------
7213 # Return contents of a file from $libdir/am, automatically skipping
7214 # macros or rules which are already known.
7215 sub file_contents ($$%)
7216 {
7217 my ($basename, $where, %transform) = @_;
7218 my ($comments, $variables, $rules) =
7219 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7220 %transform);
7221 return "$comments$variables$rules";
7222 }
7225 # @PREFIX
7226 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7227 # -----------------------------------------------------
7228 # Find all variable prefixes that are used for install directories. A
7229 # prefix 'zar' qualifies iff:
7230 #
7231 # * 'zardir' is a variable.
7232 # * 'zar_PRIMARY' is a variable.
7233 #
7234 # As a side effect, it looks for misspellings. It is an error to have
7235 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7236 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7237 # of the same name (with "dir" appended) exists. For instance, if the
7238 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7239 # This is to provide a little extra flexibility in those cases which
7240 # need it.
7241 sub am_primary_prefixes ($$@)
7242 {
7243 my ($primary, $can_dist, @prefixes) = @_;
7245 local $_;
7246 my %valid = map { $_ => 0 } @prefixes;
7247 $valid{'EXTRA'} = 0;
7248 foreach my $var (variables $primary)
7249 {
7250 # Automake is allowed to define variables that look like primaries
7251 # but which aren't. E.g. INSTALL_sh_DATA.
7252 # Autoconf can also define variables like INSTALL_DATA, so
7253 # ignore all configure variables (at least those which are not
7254 # redefined in Makefile.am).
7255 # FIXME: We should make sure that these variables are not
7256 # conditionally defined (or else adjust the condition below).
7257 my $def = $var->def (TRUE);
7258 next if $def && $def->owner != VAR_MAKEFILE;
7260 my $varname = $var->name;
7262 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7263 {
7264 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7265 if ($dist ne '' && ! $can_dist)
7266 {
7267 err_var ($var,
7268 "invalid variable '$varname': 'dist' is forbidden");
7269 }
7270 # Standard directories must be explicitly allowed.
7271 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7272 {
7273 err_var ($var,
7274 "'${X}dir' is not a legitimate directory " .
7275 "for '$primary'");
7276 }
7277 # A not explicitly valid directory is allowed if Xdir is defined.
7278 elsif (! defined $valid{$X} &&
7279 $var->requires_variables ("'$varname' is used", "${X}dir"))
7280 {
7281 # Nothing to do. Any error message has been output
7282 # by $var->requires_variables.
7283 }
7284 else
7285 {
7286 # Ensure all extended prefixes are actually used.
7287 $valid{"$base$dist$X"} = 1;
7288 }
7289 }
7290 else
7291 {
7292 prog_error "unexpected variable name: $varname";
7293 }
7294 }
7296 # Return only those which are actually defined.
7297 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7298 }
7301 # Handle 'where_HOW' variable magic. Does all lookups, generates
7302 # install code, and possibly generates code to define the primary
7303 # variable. The first argument is the name of the .am file to munge,
7304 # the second argument is the primary variable (e.g. HEADERS), and all
7305 # subsequent arguments are possible installation locations.
7306 #
7307 # Returns list of [$location, $value] pairs, where
7308 # $value's are the values in all where_HOW variable, and $location
7309 # there associated location (the place here their parent variables were
7310 # defined).
7311 #
7312 # FIXME: this should be rewritten to be cleaner. It should be broken
7313 # up into multiple functions.
7314 #
7315 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7316 sub am_install_var
7317 {
7318 my (@args) = @_;
7320 my $do_require = 1;
7321 my $can_dist = 0;
7322 my $default_dist = 0;
7323 while (@args)
7324 {
7325 if ($args[0] eq '-noextra')
7326 {
7327 $do_require = 0;
7328 }
7329 elsif ($args[0] eq '-candist')
7330 {
7331 $can_dist = 1;
7332 }
7333 elsif ($args[0] eq '-defaultdist')
7334 {
7335 $default_dist = 1;
7336 $can_dist = 1;
7337 }
7338 elsif ($args[0] !~ /^-/)
7339 {
7340 last;
7341 }
7342 shift (@args);
7343 }
7345 my ($file, $primary, @prefix) = @args;
7347 # Now that configure substitutions are allowed in where_HOW
7348 # variables, it is an error to actually define the primary. We
7349 # allow 'JAVA', as it is customarily used to mean the Java
7350 # interpreter. This is but one of several Java hacks. Similarly,
7351 # 'PYTHON' is customarily used to mean the Python interpreter.
7352 reject_var $primary, "'$primary' is an anachronism"
7353 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7355 # Get the prefixes which are valid and actually used.
7356 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7358 # If a primary includes a configure substitution, then the EXTRA_
7359 # form is required. Otherwise we can't properly do our job.
7360 my $require_extra;
7362 my @used = ();
7363 my @result = ();
7365 foreach my $X (@prefix)
7366 {
7367 my $nodir_name = $X;
7368 my $one_name = $X . '_' . $primary;
7369 my $one_var = var $one_name;
7371 my $strip_subdir = 1;
7372 # If subdir prefix should be preserved, do so.
7373 if ($nodir_name =~ /^nobase_/)
7374 {
7375 $strip_subdir = 0;
7376 $nodir_name =~ s/^nobase_//;
7377 }
7379 # If files should be distributed, do so.
7380 my $dist_p = 0;
7381 if ($can_dist)
7382 {
7383 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7384 || (! $default_dist && $nodir_name =~ /^dist_/));
7385 $nodir_name =~ s/^(dist|nodist)_//;
7386 }
7389 # Use the location of the currently processed variable.
7390 # We are not processing a particular condition, so pick the first
7391 # available.
7392 my $tmpcond = $one_var->conditions->one_cond;
7393 my $where = $one_var->rdef ($tmpcond)->location->clone;
7395 # Append actual contents of where_PRIMARY variable to
7396 # @result, skipping @substitutions@.
7397 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7398 {
7399 my ($loc, $value) = @$locvals;
7400 # Skip configure substitutions.
7401 if ($value =~ /^\@.*\@$/)
7402 {
7403 if ($nodir_name eq 'EXTRA')
7404 {
7405 error ($where,
7406 "'$one_name' contains configure substitution, "
7407 . "but shouldn't");
7408 }
7409 # Check here to make sure variables defined in
7410 # configure.ac do not imply that EXTRA_PRIMARY
7411 # must be defined.
7412 elsif (! defined $configure_vars{$one_name})
7413 {
7414 $require_extra = $one_name
7415 if $do_require;
7416 }
7417 }
7418 else
7419 {
7420 # Strip any $(EXEEXT) suffix the user might have added, or this
7421 # will confuse &handle_source_transform and &check_canonical_spelling.
7422 # We'll add $(EXEEXT) back later anyway.
7423 # Do it here rather than in handle_programs so the uniquifying at the
7424 # end of this function works.
7425 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7426 if $primary eq 'PROGRAMS';
7428 push (@result, $locvals);
7429 }
7430 }
7431 # A blatant hack: we rewrite each _PROGRAMS primary to include
7432 # EXEEXT.
7433 append_exeext { 1 } $one_name
7434 if $primary eq 'PROGRAMS';
7435 # "EXTRA" shouldn't be used when generating clean targets,
7436 # all, or install targets. We used to warn if EXTRA_FOO was
7437 # defined uselessly, but this was annoying.
7438 next
7439 if $nodir_name eq 'EXTRA';
7441 if ($nodir_name eq 'check')
7442 {
7443 push (@check, '$(' . $one_name . ')');
7444 }
7445 else
7446 {
7447 push (@used, '$(' . $one_name . ')');
7448 }
7450 # Is this to be installed?
7451 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7453 # If so, with install-exec? (or install-data?).
7454 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7456 my $check_options_p = $install_p && !! option 'std-options';
7458 # Use the location of the currently processed variable as context.
7459 $where->push_context ("while processing '$one_name'");
7461 # The variable containing all files to distribute.
7462 my $distvar = "\$($one_name)";
7463 $distvar = shadow_unconditionally ($one_name, $where)
7464 if ($dist_p && $one_var->has_conditional_contents);
7466 # Singular form of $PRIMARY.
7467 (my $one_primary = $primary) =~ s/S$//;
7468 $output_rules .= &file_contents ($file, $where,
7469 PRIMARY => $primary,
7470 ONE_PRIMARY => $one_primary,
7471 DIR => $X,
7472 NDIR => $nodir_name,
7473 BASE => $strip_subdir,
7475 EXEC => $exec_p,
7476 INSTALL => $install_p,
7477 DIST => $dist_p,
7478 DISTVAR => $distvar,
7479 'CK-OPTS' => $check_options_p);
7480 }
7482 # The JAVA variable is used as the name of the Java interpreter.
7483 # The PYTHON variable is used as the name of the Python interpreter.
7484 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7485 {
7486 # Define it.
7487 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7488 $output_vars .= "\n";
7489 }
7491 err_var ($require_extra,
7492 "'$require_extra' contains configure substitution,\n"
7493 . "but 'EXTRA_$primary' not defined")
7494 if ($require_extra && ! var ('EXTRA_' . $primary));
7496 # Push here because PRIMARY might be configure time determined.
7497 push (@all, '$(' . $primary . ')')
7498 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7500 # Make the result unique. This lets the user use conditionals in
7501 # a natural way, but still lets us program lazily -- we don't have
7502 # to worry about handling a particular object more than once.
7503 # We will keep only one location per object.
7504 my %result = ();
7505 for my $pair (@result)
7506 {
7507 my ($loc, $val) = @$pair;
7508 $result{$val} = $loc;
7509 }
7510 my @l = sort keys %result;
7511 return map { [$result{$_}->clone, $_] } @l;
7512 }
7515 ################################################################
7517 # Each key in this hash is the name of a directory holding a
7518 # Makefile.in. These variables are local to 'is_make_dir'.
7519 my %make_dirs = ();
7520 my $make_dirs_set = 0;
7522 sub is_make_dir
7523 {
7524 my ($dir) = @_;
7525 if (! $make_dirs_set)
7526 {
7527 foreach my $iter (@configure_input_files)
7528 {
7529 $make_dirs{dirname ($iter)} = 1;
7530 }
7531 # We also want to notice Makefile.in's.
7532 foreach my $iter (@other_input_files)
7533 {
7534 if ($iter =~ /Makefile\.in$/)
7535 {
7536 $make_dirs{dirname ($iter)} = 1;
7537 }
7538 }
7539 $make_dirs_set = 1;
7540 }
7541 return defined $make_dirs{$dir};
7542 }
7544 ################################################################
7546 # Find the aux dir. This should match the algorithm used by
7547 # ./configure. (See the Autoconf documentation for for
7548 # AC_CONFIG_AUX_DIR.)
7549 sub locate_aux_dir ()
7550 {
7551 if (! $config_aux_dir_set_in_configure_ac)
7552 {
7553 # The default auxiliary directory is the first
7554 # of ., .., or ../.. that contains install-sh.
7555 # Assume . if install-sh doesn't exist yet.
7556 for my $dir (qw (. .. ../..))
7557 {
7558 if (-f "$dir/install-sh")
7559 {
7560 $config_aux_dir = $dir;
7561 last;
7562 }
7563 }
7564 $config_aux_dir = '.' unless $config_aux_dir;
7565 }
7566 # Avoid unsightly '/.'s.
7567 $am_config_aux_dir =
7568 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7569 $am_config_aux_dir =~ s,/*$,,;
7570 }
7573 # &push_required_file ($DIR, $FILE, $FULLFILE)
7574 # --------------------------------------------------
7575 # Push the given file onto DIST_COMMON.
7576 sub push_required_file
7577 {
7578 my ($dir, $file, $fullfile) = @_;
7580 # If the file to be distributed is in the same directory of the
7581 # currently processed Makefile.am, then we want to distribute it
7582 # from this same Makefile.am.
7583 if ($dir eq $relative_dir)
7584 {
7585 push_dist_common ($file);
7586 }
7587 # This is needed to allow a construct in a non-top-level Makefile.am
7588 # to require a file in the build-aux directory (see at least the test
7589 # script 'test-driver-is-distributed.test'). This is related to the
7590 # automake bug#9546. Note that the use of $config_aux_dir instead
7591 # of $am_config_aux_dir here is deliberate and necessary.
7592 elsif ($dir eq $config_aux_dir)
7593 {
7594 push_dist_common ("$am_config_aux_dir/$file");
7595 }
7596 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7597 # We probably need some refactoring of this function and its callers,
7598 # to have a more explicit and systematic handling of all the special
7599 # cases; but, since there are only two of them, this is low-priority
7600 # ATM.
7601 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7602 {
7603 # Avoid unsightly '/.'s.
7604 my $am_config_libobj_dir =
7605 '$(top_srcdir)' .
7606 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7607 $am_config_libobj_dir =~ s|/*$||;
7608 push_dist_common ("$am_config_libobj_dir/$file");
7609 }
7610 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7611 {
7612 # If we are doing the topmost directory, and the file is in a
7613 # subdir which does not have a Makefile, then we distribute it
7614 # here.
7616 # If a required file is above the source tree, it is important
7617 # to prefix it with '$(srcdir)' so that no VPATH search is
7618 # performed. Otherwise problems occur with Make implementations
7619 # that rewrite and simplify rules whose dependencies are found in a
7620 # VPATH location. Here is an example with OSF1/Tru64 Make.
7621 #
7622 # % cat Makefile
7623 # VPATH = sub
7624 # distdir: ../a
7625 # echo ../a
7626 # % ls
7627 # Makefile a
7628 # % make
7629 # echo a
7630 # a
7631 #
7632 # Dependency '../a' was found in 'sub/../a', but this make
7633 # implementation simplified it as 'a'. (Note that the sub/
7634 # directory does not even exist.)
7635 #
7636 # This kind of VPATH rewriting seems hard to cancel. The
7637 # distdir.am hack against VPATH rewriting works only when no
7638 # simplification is done, i.e., for dependencies which are in
7639 # subdirectories, not in enclosing directories. Hence, in
7640 # the latter case we use a full path to make sure no VPATH
7641 # search occurs.
7642 $fullfile = '$(srcdir)/' . $fullfile
7643 if $dir =~ m,^\.\.(?:$|/),;
7645 push_dist_common ($fullfile);
7646 }
7647 else
7648 {
7649 prog_error "a Makefile in relative directory $relative_dir " .
7650 "can't add files in directory $dir to DIST_COMMON";
7651 }
7652 }
7655 # If a file name appears as a key in this hash, then it has already
7656 # been checked for. This allows us not to report the same error more
7657 # than once.
7658 my %required_file_not_found = ();
7660 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7661 # --------------------------------------------------------
7662 # Verify that the file must exist in $DIRECTORY, or install it.
7663 sub required_file_check_or_copy ($$$)
7664 {
7665 my ($where, $dir, $file) = @_;
7667 my $fullfile = "$dir/$file";
7668 my $found_it = 0;
7669 my $dangling_sym = 0;
7671 if (-l $fullfile && ! -f $fullfile)
7672 {
7673 $dangling_sym = 1;
7674 }
7675 elsif (dir_has_case_matching_file ($dir, $file))
7676 {
7677 $found_it = 1;
7678 }
7680 # '--force-missing' only has an effect if '--add-missing' is
7681 # specified.
7682 return
7683 if $found_it && (! $add_missing || ! $force_missing);
7685 # If we've already looked for it, we're done. You might
7686 # wonder why we don't do this before searching for the
7687 # file. If we do that, then something like
7688 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7689 # DIST_COMMON.
7690 if (! $found_it)
7691 {
7692 return if defined $required_file_not_found{$fullfile};
7693 $required_file_not_found{$fullfile} = 1;
7694 }
7695 if ($dangling_sym && $add_missing)
7696 {
7697 unlink ($fullfile);
7698 }
7700 my $trailer = '';
7701 my $trailer2 = '';
7702 my $suppress = 0;
7704 # Only install missing files according to our desired
7705 # strictness level.
7706 my $message = "required file '$fullfile' not found";
7707 if ($add_missing)
7708 {
7709 if (-f "$libdir/$file")
7710 {
7711 $suppress = 1;
7713 # Install the missing file. Symlink if we
7714 # can, copy if we must. Note: delete the file
7715 # first, in case it is a dangling symlink.
7716 $message = "installing '$fullfile'";
7718 # The license file should not be volatile.
7719 if ($file eq "COPYING")
7720 {
7721 $message .= " using GNU General Public License v3 file";
7722 $trailer2 = "\n Consider adding the COPYING file"
7723 . " to the version control system"
7724 . "\n for your code, to avoid questions"
7725 . " about which license your project uses";
7726 }
7728 # Windows Perl will hang if we try to delete a
7729 # file that doesn't exist.
7730 unlink ($fullfile) if -f $fullfile;
7731 if ($symlink_exists && ! $copy_missing)
7732 {
7733 if (! symlink ("$libdir/$file", $fullfile)
7734 || ! -e $fullfile)
7735 {
7736 $suppress = 0;
7737 $trailer = "; error while making link: $!";
7738 }
7739 }
7740 elsif (system ('cp', "$libdir/$file", $fullfile))
7741 {
7742 $suppress = 0;
7743 $trailer = "\n error while copying";
7744 }
7745 set_dir_cache_file ($dir, $file);
7746 }
7747 }
7748 else
7749 {
7750 $trailer = "\n 'automake --add-missing' can install '$file'"
7751 if -f "$libdir/$file";
7752 }
7754 # If --force-missing was specified, and we have
7755 # actually found the file, then do nothing.
7756 return
7757 if $found_it && $force_missing;
7759 # If we couldn't install the file, but it is a target in
7760 # the Makefile, don't print anything. This allows files
7761 # like README, AUTHORS, or THANKS to be generated.
7762 return
7763 if !$suppress && rule $file;
7765 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7766 }
7769 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7770 # ----------------------------------------------------------------------
7771 # Verify that the file must exist in $DIRECTORY, or install it.
7772 # $MYSTRICT is the strictness level at which this file becomes required.
7773 # Worker threads may queue up the action to be serialized by the master,
7774 # if $QUEUE is true
7775 sub require_file_internal ($$$@)
7776 {
7777 my ($where, $mystrict, $dir, $queue, @files) = @_;
7779 return
7780 unless $strictness >= $mystrict;
7782 foreach my $file (@files)
7783 {
7784 push_required_file ($dir, $file, "$dir/$file");
7785 if ($queue)
7786 {
7787 queue_required_file_check_or_copy ($required_conf_file_queue,
7788 QUEUE_CONF_FILE, $relative_dir,
7789 $where, $mystrict, @files);
7790 }
7791 else
7792 {
7793 required_file_check_or_copy ($where, $dir, $file);
7794 }
7795 }
7796 }
7798 # &require_file ($WHERE, $MYSTRICT, @FILES)
7799 # -----------------------------------------
7800 sub require_file ($$@)
7801 {
7802 my ($where, $mystrict, @files) = @_;
7803 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7804 }
7806 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7807 # -----------------------------------------------------------
7808 sub require_file_with_macro ($$$@)
7809 {
7810 my ($cond, $macro, $mystrict, @files) = @_;
7811 $macro = rvar ($macro) unless ref $macro;
7812 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7813 }
7815 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7816 # ----------------------------------------------------------------
7817 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7818 # must be in that directory. Otherwise expect it in the current directory.
7819 sub require_libsource_with_macro ($$$@)
7820 {
7821 my ($cond, $macro, $mystrict, @files) = @_;
7822 $macro = rvar ($macro) unless ref $macro;
7823 if ($config_libobj_dir)
7824 {
7825 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7826 $config_libobj_dir, 0, @files);
7827 }
7828 else
7829 {
7830 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7831 }
7832 }
7834 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7835 # $MYSTRICT, @FILES)
7836 # ---------------------------------------------------------------
7837 sub queue_required_file_check_or_copy ($$$$@)
7838 {
7839 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7840 my @serial_loc;
7841 if (ref $where)
7842 {
7843 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7844 }
7845 else
7846 {
7847 @serial_loc = (QUEUE_STRING, $where);
7848 }
7849 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7850 }
7852 # &require_queued_file_check_or_copy ($QUEUE)
7853 # -------------------------------------------
7854 sub require_queued_file_check_or_copy ($)
7855 {
7856 my ($queue) = @_;
7857 my $where;
7858 my $dir = $queue->dequeue ();
7859 my $loc_key = $queue->dequeue ();
7860 if ($loc_key eq QUEUE_LOCATION)
7861 {
7862 $where = Automake::Location::deserialize ($queue);
7863 }
7864 elsif ($loc_key eq QUEUE_STRING)
7865 {
7866 $where = $queue->dequeue ();
7867 }
7868 else
7869 {
7870 prog_error "unexpected key $loc_key";
7871 }
7872 my $mystrict = $queue->dequeue ();
7873 my $nfiles = $queue->dequeue ();
7874 my @files;
7875 push @files, $queue->dequeue ()
7876 foreach (1 .. $nfiles);
7877 return
7878 unless $strictness >= $mystrict;
7879 foreach my $file (@files)
7880 {
7881 required_file_check_or_copy ($where, $config_aux_dir, $file);
7882 }
7883 }
7885 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7886 # ----------------------------------------------
7887 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7888 sub require_conf_file ($$@)
7889 {
7890 my ($where, $mystrict, @files) = @_;
7891 my $queue = defined $required_conf_file_queue ? 1 : 0;
7892 require_file_internal ($where, $mystrict, $config_aux_dir,
7893 $queue, @files);
7894 }
7897 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7898 # ----------------------------------------------------------------
7899 sub require_conf_file_with_macro ($$$@)
7900 {
7901 my ($cond, $macro, $mystrict, @files) = @_;
7902 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7903 $mystrict, @files);
7904 }
7906 ################################################################
7908 # &require_build_directory ($DIRECTORY)
7909 # -------------------------------------
7910 # Emit rules to create $DIRECTORY if needed, and return
7911 # the file that any target requiring this directory should be made
7912 # dependent upon.
7913 # We don't want to emit the rule twice, and want to reuse it
7914 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
7915 sub require_build_directory ($)
7916 {
7917 my $directory = shift;
7919 return $directory_map{$directory} if exists $directory_map{$directory};
7921 my $cdir = File::Spec->canonpath ($directory);
7923 if (exists $directory_map{$cdir})
7924 {
7925 my $stamp = $directory_map{$cdir};
7926 $directory_map{$directory} = $stamp;
7927 return $stamp;
7928 }
7930 my $dirstamp = "$cdir/\$(am__dirstamp)";
7932 $directory_map{$directory} = $dirstamp;
7933 $directory_map{$cdir} = $dirstamp;
7935 # Set a variable for the dirstamp basename.
7936 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7937 '$(am__leading_dot)dirstamp');
7939 # Directory must be removed by 'make distclean'.
7940 $clean_files{$dirstamp} = DIST_CLEAN;
7942 $output_rules .= ("$dirstamp:\n"
7943 . "\t\@\$(MKDIR_P) $directory\n"
7944 . "\t\@: > $dirstamp\n");
7946 return $dirstamp;
7947 }
7949 # &require_build_directory_maybe ($FILE)
7950 # --------------------------------------
7951 # If $FILE lies in a subdirectory, emit a rule to create this
7952 # directory and return the file that $FILE should be made
7953 # dependent upon. Otherwise, just return the empty string.
7954 sub require_build_directory_maybe ($)
7955 {
7956 my $file = shift;
7957 my $directory = dirname ($file);
7959 if ($directory ne '.')
7960 {
7961 return require_build_directory ($directory);
7962 }
7963 else
7964 {
7965 return '';
7966 }
7967 }
7969 ################################################################
7971 # Push a list of files onto dist_common.
7972 sub push_dist_common
7973 {
7974 prog_error "push_dist_common run after handle_dist"
7975 if $handle_dist_run;
7976 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7977 '', INTERNAL, VAR_PRETTY);
7978 }
7981 ################################################################
7983 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7984 # ----------------------------------------------
7985 # Generate a Makefile.in given the name of the corresponding Makefile and
7986 # the name of the file output by config.status.
7987 sub generate_makefile ($$)
7988 {
7989 my ($makefile_am, $makefile_in) = @_;
7991 # Reset all the Makefile.am related variables.
7992 initialize_per_input;
7994 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7995 # warnings for this file. So hold any warning issued before
7996 # we have processed AUTOMAKE_OPTIONS.
7997 buffer_messages ('warning');
7999 # $OUTPUT is encoded. If it contains a ":" then the first element
8000 # is the real output file, and all remaining elements are input
8001 # files. We don't scan or otherwise deal with these input files,
8002 # other than to mark them as dependencies. See
8003 # &scan_autoconf_files for details.
8004 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8006 $relative_dir = dirname ($makefile);
8008 read_main_am_file ($makefile_am, $makefile_in);
8009 if (handle_options)
8010 {
8011 # Process buffered warnings.
8012 flush_messages;
8013 # Fatal error. Just return, so we can continue with next file.
8014 return;
8015 }
8016 # Process buffered warnings.
8017 flush_messages;
8019 # There are a few install-related variables that you should not define.
8020 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8021 {
8022 my $v = var $var;
8023 if ($v)
8024 {
8025 my $def = $v->def (TRUE);
8026 prog_error "$var not defined in condition TRUE"
8027 unless $def;
8028 reject_var $var, "'$var' should not be defined"
8029 if $def->owner != VAR_AUTOMAKE;
8030 }
8031 }
8033 # Catch some obsolete variables.
8034 msg_var ('obsolete', 'INCLUDES',
8035 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
8036 if var ('INCLUDES');
8038 # Must do this after reading .am file.
8039 define_variable ('subdir', $relative_dir, INTERNAL);
8041 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8042 # recursive rules are enabled.
8043 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8044 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8046 # Check first, because we might modify some state.
8047 check_cygnus;
8048 check_gnu_standards;
8049 check_gnits_standards;
8051 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8052 handle_gettext;
8053 handle_libraries;
8054 handle_ltlibraries;
8055 handle_programs;
8056 handle_scripts;
8058 handle_silent;
8060 # These must be run after all the sources are scanned. They
8061 # use variables defined by &handle_libraries, &handle_ltlibraries,
8062 # or &handle_programs.
8063 handle_compile;
8064 handle_languages;
8065 handle_libtool;
8067 # Variables used by distdir.am and tags.am.
8068 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8069 if (! option 'no-dist')
8070 {
8071 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8072 }
8074 handle_texinfo;
8075 handle_emacs_lisp;
8076 handle_python;
8077 handle_java;
8078 handle_man_pages;
8079 handle_data;
8080 handle_headers;
8081 handle_subdirs;
8082 handle_tags;
8083 handle_minor_options;
8084 # Must come after handle_programs so that %known_programs is up-to-date.
8085 handle_tests;
8087 # This must come after most other rules.
8088 handle_dist;
8090 handle_footer;
8091 do_check_merge_target;
8092 handle_all ($makefile);
8094 # FIXME: Gross!
8095 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8096 {
8097 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8098 }
8099 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8100 {
8101 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8102 }
8104 handle_install;
8105 handle_clean ($makefile);
8106 handle_factored_dependencies;
8108 # Comes last, because all the above procedures may have
8109 # defined or overridden variables.
8110 $output_vars .= output_variables;
8112 check_typos;
8114 if ($exit_code != 0)
8115 {
8116 verb "not writing $makefile_in because of earlier errors";
8117 return;
8118 }
8120 my $am_relative_dir = dirname ($makefile_am);
8121 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8123 # We make sure that 'all:' is the first target.
8124 my $output =
8125 "$output_vars$output_all$output_header$output_rules$output_trailer";
8127 # Decide whether we must update the output file or not.
8128 # We have to update in the following situations.
8129 # * $force_generation is set.
8130 # * any of the output dependencies is younger than the output
8131 # * the contents of the output is different (this can happen
8132 # if the project has been populated with a file listed in
8133 # @common_files since the last run).
8134 # Output's dependencies are split in two sets:
8135 # * dependencies which are also configure dependencies
8136 # These do not change between each Makefile.am
8137 # * other dependencies, specific to the Makefile.am being processed
8138 # (such as the Makefile.am itself, or any Makefile fragment
8139 # it includes).
8140 my $timestamp = mtime $makefile_in;
8141 if (! $force_generation
8142 && $configure_deps_greatest_timestamp < $timestamp
8143 && $output_deps_greatest_timestamp < $timestamp
8144 && $output eq contents ($makefile_in))
8145 {
8146 verb "$makefile_in unchanged";
8147 # No need to update.
8148 return;
8149 }
8151 if (-e $makefile_in)
8152 {
8153 unlink ($makefile_in)
8154 or fatal "cannot remove $makefile_in: $!";
8155 }
8157 my $gm_file = new Automake::XFile "> $makefile_in";
8158 verb "creating $makefile_in";
8159 print $gm_file $output;
8160 }
8162 ################################################################
8167 ################################################################
8169 # Helper function for usage().
8170 sub print_autodist_files (@)
8171 {
8172 my @lcomm = sort (&uniq (@_));
8174 my @four;
8175 format USAGE_FORMAT =
8176 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8177 $four[0], $four[1], $four[2], $four[3]
8178 .
8179 local $~ = "USAGE_FORMAT";
8181 my $cols = 4;
8182 my $rows = int(@lcomm / $cols);
8183 my $rest = @lcomm % $cols;
8185 if ($rest)
8186 {
8187 $rows++;
8188 }
8189 else
8190 {
8191 $rest = $cols;
8192 }
8194 for (my $y = 0; $y < $rows; $y++)
8195 {
8196 @four = ("", "", "", "");
8197 for (my $x = 0; $x < $cols; $x++)
8198 {
8199 last if $y + 1 == $rows && $x == $rest;
8201 my $idx = (($x > $rest)
8202 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8203 : ($rows * $x));
8205 $idx += $y;
8206 $four[$x] = $lcomm[$idx];
8207 }
8208 write;
8209 }
8210 }
8213 # Print usage information.
8214 sub usage ()
8215 {
8216 print "Usage: $0 [OPTION]... [Makefile]...
8218 Generate Makefile.in for configure from Makefile.am.
8220 Operation modes:
8221 --help print this help, then exit
8222 --version print version number, then exit
8223 -v, --verbose verbosely list files processed
8224 --no-force only update Makefile.in's that are out of date
8225 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8227 Dependency tracking:
8228 -i, --ignore-deps disable dependency tracking code
8229 --include-deps enable dependency tracking code
8231 Flavors:
8232 --cygnus assume program is part of Cygnus-style tree
8233 --foreign set strictness to foreign
8234 --gnits set strictness to gnits
8235 --gnu set strictness to gnu
8237 Library files:
8238 -a, --add-missing add missing standard files to package
8239 --libdir=DIR set directory storing library files
8240 --print-libdir print directory storing library files
8241 -c, --copy with -a, copy missing files (default is symlink)
8242 -f, --force-missing force update of standard files
8244 ";
8245 Automake::ChannelDefs::usage;
8247 print "\nFiles automatically distributed if found " .
8248 "(always):\n";
8249 print_autodist_files @common_files;
8250 print "\nFiles automatically distributed if found " .
8251 "(under certain conditions):\n";
8252 print_autodist_files @common_sometimes;
8254 print '
8255 Report bugs to <@PACKAGE_BUGREPORT@>.
8256 GNU Automake home page: <@PACKAGE_URL@>.
8257 General help using GNU software: <http://www.gnu.org/gethelp/>.
8258 ';
8260 # --help always returns 0 per GNU standards.
8261 exit 0;
8262 }
8265 # &version ()
8266 # -----------
8267 # Print version information
8268 sub version ()
8269 {
8270 print <<EOF;
8271 automake (GNU $PACKAGE) $VERSION
8272 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8273 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8274 This is free software: you are free to change and redistribute it.
8275 There is NO WARRANTY, to the extent permitted by law.
8277 Written by Tom Tromey <tromey\@redhat.com>
8278 and Alexandre Duret-Lutz <adl\@gnu.org>.
8279 EOF
8280 # --version always returns 0 per GNU standards.
8281 exit 0;
8282 }
8284 ################################################################
8286 # Parse command line.
8287 sub parse_arguments ()
8288 {
8289 my $strict = 'gnu';
8290 my $cygnus = 0;
8291 my $ignore_deps = 0;
8292 my @warnings = ();
8294 my %cli_options =
8295 (
8296 'version' => \&version,
8297 'help' => \&usage,
8298 'libdir=s' => \$libdir,
8299 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8300 'gnu' => sub { $strict = 'gnu'; },
8301 'gnits' => sub { $strict = 'gnits'; },
8302 'foreign' => sub { $strict = 'foreign'; },
8303 'cygnus' => \$cygnus,
8304 'include-deps' => sub { $ignore_deps = 0; },
8305 'i|ignore-deps' => sub { $ignore_deps = 1; },
8306 'no-force' => sub { $force_generation = 0; },
8307 'f|force-missing' => \$force_missing,
8308 'a|add-missing' => \$add_missing,
8309 'c|copy' => \$copy_missing,
8310 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8311 'W|warnings=s' => \@warnings,
8312 );
8314 use Automake::Getopt ();
8315 Automake::Getopt::parse_options %cli_options;
8317 set_strictness ($strict);
8318 my $cli_where = new Automake::Location;
8319 set_global_option ('cygnus', $cli_where) if $cygnus;
8320 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8321 for my $warning (@warnings)
8322 {
8323 &parse_warnings ('-W', $warning);
8324 }
8326 return unless @ARGV;
8328 my $errspec = 0;
8329 foreach my $arg (@ARGV)
8330 {
8331 fatal ("empty argument\nTry '$0 --help' for more information")
8332 if ($arg eq '');
8334 # Handle $local:$input syntax.
8335 my ($local, @rest) = split (/:/, $arg);
8336 @rest = ("$local.in",) unless @rest;
8337 my $input = locate_am @rest;
8338 if ($input)
8339 {
8340 push @input_files, $input;
8341 $output_files{$input} = join (':', ($local, @rest));
8342 }
8343 else
8344 {
8345 error "no Automake input file found for '$arg'";
8346 $errspec = 1;
8347 }
8348 }
8349 fatal "no input file found among supplied arguments"
8350 if $errspec && ! @input_files;
8351 }
8354 # handle_makefile ($MAKEFILE_IN)
8355 # ------------------------------
8356 # Deal with $MAKEFILE_IN.
8357 sub handle_makefile ($)
8358 {
8359 my ($file) = @_;
8360 ($am_file = $file) =~ s/\.in$//;
8361 if (! -f ($am_file . '.am'))
8362 {
8363 error "'$am_file.am' does not exist";
8364 }
8365 else
8366 {
8367 # Any warning setting now local to this Makefile.am.
8368 dup_channel_setup;
8370 generate_makefile ($am_file . '.am', $file);
8372 # Back out any warning setting.
8373 drop_channel_setup;
8374 }
8375 }
8377 # handle_makefiles_serial ()
8378 # --------------------------
8379 # Deal with all makefiles, without threads.
8380 sub handle_makefiles_serial ()
8381 {
8382 foreach my $file (@input_files)
8383 {
8384 handle_makefile ($file);
8385 }
8386 }
8388 # get_number_of_threads ()
8389 # ------------------------
8390 # Logic for deciding how many worker threads to use.
8391 sub get_number_of_threads
8392 {
8393 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8395 $nthreads = 0
8396 unless $nthreads =~ /^[0-9]+$/;
8398 # It doesn't make sense to use more threads than makefiles,
8399 my $max_threads = @input_files;
8401 if ($nthreads > $max_threads)
8402 {
8403 $nthreads = $max_threads;
8404 }
8405 return $nthreads;
8406 }
8408 # handle_makefiles_threaded ($NTHREADS)
8409 # -------------------------------------
8410 # Deal with all makefiles, using threads. The general strategy is to
8411 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8412 # worker threads push back everything that needs serialization:
8413 # * warning and (normal) error messages, for stable stderr output
8414 # order and content (avoiding duplicates, for example),
8415 # * races when installing aux files (and respective messages),
8416 # * races when collecting aux files for distribution.
8417 #
8418 # The latter requires that the makefile that deals with the aux dir
8419 # files be handled last, done by the master thread.
8420 sub handle_makefiles_threaded ($)
8421 {
8422 my ($nthreads) = @_;
8424 # The file queue distributes all makefiles, the message queues
8425 # collect all serializations needed for respective files.
8426 my $file_queue = Thread::Queue->new;
8427 my %msg_queues;
8428 foreach my $file (@input_files)
8429 {
8430 $msg_queues{$file} = Thread::Queue->new;
8431 }
8433 verb "spawning $nthreads worker threads";
8434 my @threads = (1 .. $nthreads);
8435 foreach my $t (@threads)
8436 {
8437 $t = threads->new (sub
8438 {
8439 while (my $file = $file_queue->dequeue)
8440 {
8441 verb "handling $file";
8442 my $queue = $msg_queues{$file};
8443 setup_channel_queue ($queue, QUEUE_MESSAGE);
8444 $required_conf_file_queue = $queue;
8445 handle_makefile ($file);
8446 $queue->enqueue (undef);
8447 setup_channel_queue (undef, undef);
8448 $required_conf_file_queue = undef;
8449 }
8450 return $exit_code;
8451 });
8452 }
8454 # Queue all makefiles.
8455 verb "queuing " . @input_files . " input files";
8456 $file_queue->enqueue (@input_files, (undef) x @threads);
8458 # Collect and process serializations.
8459 foreach my $file (@input_files)
8460 {
8461 verb "dequeuing messages for " . $file;
8462 reset_local_duplicates ();
8463 my $queue = $msg_queues{$file};
8464 while (my $key = $queue->dequeue)
8465 {
8466 if ($key eq QUEUE_MESSAGE)
8467 {
8468 pop_channel_queue ($queue);
8469 }
8470 elsif ($key eq QUEUE_CONF_FILE)
8471 {
8472 require_queued_file_check_or_copy ($queue);
8473 }
8474 else
8475 {
8476 prog_error "unexpected key $key";
8477 }
8478 }
8479 }
8481 foreach my $t (@threads)
8482 {
8483 my @exit_thread = $t->join;
8484 $exit_code = $exit_thread[0]
8485 if ($exit_thread[0] > $exit_code);
8486 }
8487 }
8489 ################################################################
8491 # Parse the WARNINGS environment variable.
8492 parse_WARNINGS;
8494 # Parse command line.
8495 parse_arguments;
8497 $configure_ac = require_configure_ac;
8499 # Do configure.ac scan only once.
8500 scan_autoconf_files;
8502 if (! @input_files)
8503 {
8504 my $msg = '';
8505 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8506 if -f 'Makefile.am';
8507 fatal ("no 'Makefile.am' found for any configure output$msg");
8508 }
8510 my $nthreads = get_number_of_threads ();
8512 if ($perl_threads && $nthreads >= 1)
8513 {
8514 handle_makefiles_threaded ($nthreads);
8515 }
8516 else
8517 {
8518 handle_makefiles_serial ();
8519 }
8521 exit $exit_code;
8524 ### Setup "GNU" style for perl-mode and cperl-mode.
8525 ## Local Variables:
8526 ## perl-indent-level: 2
8527 ## perl-continued-statement-offset: 2
8528 ## perl-continued-brace-offset: 0
8529 ## perl-brace-offset: 0
8530 ## perl-brace-imaginary-offset: 0
8531 ## perl-label-offset: -2
8532 ## cperl-indent-level: 2
8533 ## cperl-brace-offset: 0
8534 ## cperl-continued-brace-offset: 0
8535 ## cperl-label-offset: -2
8536 ## cperl-extra-newline-before-brace: t
8537 ## cperl-merge-trailing-else: nil
8538 ## cperl-continued-statement-offset: 2
8539 ## End: