| blob | e32b76158dad85c82d9ac85e4be020493f5ba5d4 |
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;
373 # Location of that macro.
374 my $canonical_location;
376 # Where AM_MAINTAINER_MODE appears.
377 my $seen_maint_mode;
379 # Actual version we've seen.
380 my $package_version = '';
382 # Where version is defined.
383 my $package_version_location;
385 # TRUE if we've seen AM_PROG_AR
386 my $seen_ar = 0;
388 # TRUE if we've seen AM_PROG_CC_C_O
389 my $seen_cc_c_o = 0;
391 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
392 my %required_aux_file = ();
394 # Where AM_INIT_AUTOMAKE is called;
395 my $seen_init_automake = 0;
397 # TRUE if we've seen AM_AUTOMAKE_VERSION.
398 my $seen_automake_version = 0;
400 # Hash table of discovered configure substitutions. Keys are names,
401 # values are 'FILE:LINE' strings which are used by error message
402 # generation.
403 my %configure_vars = ();
405 # Ignored configure substitutions (i.e., variables not to be output in
406 # Makefile.in)
407 my %ignored_configure_vars = ();
409 # Files included by $configure_ac.
410 my @configure_deps = ();
412 # Greatest timestamp of configure's dependencies.
413 my $configure_deps_greatest_timestamp = 0;
415 # Hash table of AM_CONDITIONAL variables seen in configure.
416 my %configure_cond = ();
418 # This maps extensions onto language names.
419 my %extension_map = ();
421 # List of the DIST_COMMON files we discovered while reading
422 # configure.ac.
423 my $configure_dist_common = '';
425 # This maps languages names onto objects.
426 my %languages = ();
427 # Maps each linker variable onto a language object.
428 my %link_languages = ();
430 # maps extensions to needed source flags.
431 my %sourceflags = ();
433 # List of targets we must always output.
434 # FIXME: Complete, and remove falsely required targets.
435 my %required_targets =
436 (
437 'all' => 1,
438 'dvi' => 1,
439 'pdf' => 1,
440 'ps' => 1,
441 'info' => 1,
442 'install-info' => 1,
443 'install' => 1,
444 'install-data' => 1,
445 'install-exec' => 1,
446 'uninstall' => 1,
448 # FIXME: Not required, temporary hacks.
449 # Well, actually they are sort of required: the -recursive
450 # targets will run them anyway...
451 'html-am' => 1,
452 'dvi-am' => 1,
453 'pdf-am' => 1,
454 'ps-am' => 1,
455 'info-am' => 1,
456 'install-data-am' => 1,
457 'install-exec-am' => 1,
458 'install-html-am' => 1,
459 'install-dvi-am' => 1,
460 'install-pdf-am' => 1,
461 'install-ps-am' => 1,
462 'install-info-am' => 1,
463 'installcheck-am' => 1,
464 'uninstall-am' => 1,
466 'install-man' => 1,
467 );
469 # Queue to push require_conf_file requirements to.
470 my $required_conf_file_queue;
472 # The name of the Makefile currently being processed.
473 my $am_file = 'BUG';
475 ################################################################
477 ## ------------------------------------------ ##
478 ## Variables reset by &initialize_per_input. ##
479 ## ------------------------------------------ ##
481 # Basename and relative dir of the input file.
482 my $am_file_name;
483 my $am_relative_dir;
485 # Same but wrt Makefile.in.
486 my $in_file_name;
487 my $relative_dir;
489 # Relative path to the top directory.
490 my $topsrcdir;
492 # Greatest timestamp of the output's dependencies (excluding
493 # configure's dependencies).
494 my $output_deps_greatest_timestamp;
496 # These variables are used when generating each Makefile.in.
497 # They hold the Makefile.in until it is ready to be printed.
498 my $output_vars;
499 my $output_all;
500 my $output_header;
501 my $output_rules;
502 my $output_trailer;
504 # This is the conditional stack, updated on if/else/endif, and
505 # used to build Condition objects.
506 my @cond_stack;
508 # This holds the set of included files.
509 my @include_stack;
511 # List of dependencies for the obvious targets.
512 my @all;
513 my @check;
514 my @check_tests;
516 # Keys in this hash table are files to delete. The associated
517 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
518 my %clean_files;
520 # Keys in this hash table are object files or other files in
521 # subdirectories which need to be removed. This only holds files
522 # which are created by compilations. The value in the hash indicates
523 # when the file should be removed.
524 my %compile_clean_files;
526 # Keys in this hash table are directories where we expect to build a
527 # libtool object. We use this information to decide what directories
528 # to delete.
529 my %libtool_clean_directories;
531 # Value of $(SOURCES), used by tags.am.
532 my @sources;
533 # Sources which go in the distribution.
534 my @dist_sources;
536 # This hash maps object file names onto their corresponding source
537 # file names. This is used to ensure that each object is created
538 # by a single source file.
539 my %object_map;
541 # This hash maps object file names onto an integer value representing
542 # whether this object has been built via ordinary compilation or
543 # libtool compilation (the COMPILE_* constants).
544 my %object_compilation_map;
547 # This keeps track of the directories for which we've already
548 # created dirstamp code. Keys are directories, values are stamp files.
549 # Several keys can share the same stamp files if they are equivalent
550 # (as are './/foo' and 'foo').
551 my %directory_map;
553 # All .P files.
554 my %dep_files;
556 # This is a list of all targets to run during "make dist".
557 my @dist_targets;
559 # Keep track of all programs declared in this Makefile, without
560 # $(EXEEXT). @substitutions@ are not listed.
561 my %known_programs;
562 my %known_libraries;
564 # This keeps track of which extensions we've seen (that we care
565 # about).
566 my %extension_seen;
568 # This is random scratch space for the language finish functions.
569 # Don't randomly overwrite it; examine other uses of keys first.
570 my %language_scratch;
572 # We keep track of which objects need special (per-executable)
573 # handling on a per-language basis.
574 my %lang_specific_files;
576 # This is set when 'handle_dist' has finished. Once this happens,
577 # we should no longer push on dist_common.
578 my $handle_dist_run;
580 # Used to store a set of linkers needed to generate the sources currently
581 # under consideration.
582 my %linkers_used;
584 # True if we need 'LINK' defined. This is a hack.
585 my $need_link;
587 # Does the generated Makefile have to build some compiled object
588 # (for binary programs, or plain or libtool libraries)?
589 my $must_handle_compiled_objects;
591 # Record each file processed by make_paragraphs.
592 my %transformed_files;
594 ################################################################
596 ## ---------------------------------------------- ##
597 ## Variables not reset by &initialize_per_input. ##
598 ## ---------------------------------------------- ##
600 # Cache each file processed by make_paragraphs.
601 # (This is different from %transformed_files because
602 # %transformed_files is reset for each file while %am_file_cache
603 # it global to the run.)
604 my %am_file_cache;
606 ################################################################
608 # var_SUFFIXES_trigger ($TYPE, $VALUE)
609 # ------------------------------------
610 # This is called by Automake::Variable::define() when SUFFIXES
611 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
612 # The work here needs to be performed as a side-effect of the
613 # macro_define() call because SUFFIXES definitions impact
614 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
615 # the input am file.
616 sub var_SUFFIXES_trigger ($$)
617 {
618 my ($type, $value) = @_;
619 accept_extensions (split (' ', $value));
620 }
621 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
623 ################################################################
625 ## --------------------------------- ##
626 ## Forward subroutine declarations. ##
627 ## --------------------------------- ##
628 sub register_language (%);
629 sub file_contents_internal ($$$%);
630 sub define_files_variable ($\@$$);
633 # &initialize_per_input ()
634 # ------------------------
635 # (Re)-Initialize per-Makefile.am variables.
636 sub initialize_per_input ()
637 {
638 reset_local_duplicates ();
640 $am_file_name = undef;
641 $am_relative_dir = undef;
643 $in_file_name = undef;
644 $relative_dir = undef;
645 $topsrcdir = undef;
647 $output_deps_greatest_timestamp = 0;
649 $output_vars = '';
650 $output_all = '';
651 $output_header = '';
652 $output_rules = '';
653 $output_trailer = '';
655 Automake::Options::reset;
656 Automake::Variable::reset;
657 Automake::Rule::reset;
659 @cond_stack = ();
661 @include_stack = ();
663 @all = ();
664 @check = ();
665 @check_tests = ();
667 %clean_files = ();
668 %compile_clean_files = ();
670 # We always include '.'. This isn't strictly correct.
671 %libtool_clean_directories = ('.' => 1);
673 @sources = ();
674 @dist_sources = ();
676 %object_map = ();
677 %object_compilation_map = ();
679 %directory_map = ();
681 %dep_files = ();
683 @dist_targets = ();
685 %known_programs = ();
686 %known_libraries= ();
688 %extension_seen = ();
690 %language_scratch = ();
692 %lang_specific_files = ();
694 $handle_dist_run = 0;
696 $need_link = 0;
698 $must_handle_compiled_objects = 0;
700 %transformed_files = ();
701 }
704 ################################################################
706 # Initialize our list of languages that are internally supported.
708 # C.
709 register_language ('name' => 'c',
710 'Name' => 'C',
711 'config_vars' => ['CC'],
712 'autodep' => '',
713 'flags' => ['CFLAGS', 'CPPFLAGS'],
714 'ccer' => 'CC',
715 'compiler' => 'COMPILE',
716 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
717 'lder' => 'CCLD',
718 'ld' => '$(CC)',
719 'linker' => 'LINK',
720 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
721 'compile_flag' => '-c',
722 'libtool_tag' => 'CC',
723 'extensions' => ['.c']);
725 # C++.
726 register_language ('name' => 'cxx',
727 'Name' => 'C++',
728 'config_vars' => ['CXX'],
729 'linker' => 'CXXLINK',
730 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
731 'autodep' => 'CXX',
732 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
733 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
734 'ccer' => 'CXX',
735 'compiler' => 'CXXCOMPILE',
736 'compile_flag' => '-c',
737 'output_flag' => '-o',
738 'libtool_tag' => 'CXX',
739 'lder' => 'CXXLD',
740 'ld' => '$(CXX)',
741 'pure' => 1,
742 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
744 # Objective C.
745 register_language ('name' => 'objc',
746 'Name' => 'Objective C',
747 'config_vars' => ['OBJC'],
748 'linker' => 'OBJCLINK',
749 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
750 'autodep' => 'OBJC',
751 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
752 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
753 'ccer' => 'OBJC',
754 'compiler' => 'OBJCCOMPILE',
755 'compile_flag' => '-c',
756 'output_flag' => '-o',
757 'lder' => 'OBJCLD',
758 'ld' => '$(OBJC)',
759 'pure' => 1,
760 'extensions' => ['.m']);
762 # Objective C++.
763 register_language ('name' => 'objcxx',
764 'Name' => 'Objective C++',
765 'config_vars' => ['OBJCXX'],
766 'linker' => 'OBJCXXLINK',
767 'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
768 'autodep' => 'OBJCXX',
769 'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
770 'compile' => '$(OBJCXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS)',
771 'ccer' => 'OBJCXX',
772 'compiler' => 'OBJCXXCOMPILE',
773 'compile_flag' => '-c',
774 'output_flag' => '-o',
775 'lder' => 'OBJCXXLD',
776 'ld' => '$(OBJCXX)',
777 'pure' => 1,
778 'extensions' => ['.mm']);
780 # Unified Parallel C.
781 register_language ('name' => 'upc',
782 'Name' => 'Unified Parallel C',
783 'config_vars' => ['UPC'],
784 'linker' => 'UPCLINK',
785 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
786 'autodep' => 'UPC',
787 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
788 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
789 'ccer' => 'UPC',
790 'compiler' => 'UPCCOMPILE',
791 'compile_flag' => '-c',
792 'output_flag' => '-o',
793 'lder' => 'UPCLD',
794 'ld' => '$(UPC)',
795 'pure' => 1,
796 'extensions' => ['.upc']);
798 # Headers.
799 register_language ('name' => 'header',
800 'Name' => 'Header',
801 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
802 '.hpp', '.inc'],
803 # No output.
804 'output_extensions' => sub { return () },
805 # Nothing to do.
806 '_finish' => sub { });
808 # Vala
809 register_language ('name' => 'vala',
810 'Name' => 'Vala',
811 'config_vars' => ['VALAC'],
812 'flags' => [],
813 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
814 'ccer' => 'VALAC',
815 'compiler' => 'VALACOMPILE',
816 'extensions' => ['.vala'],
817 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
818 return ($ext,) },
819 'rule_file' => 'vala',
820 '_finish' => \&lang_vala_finish,
821 '_target_hook' => \&lang_vala_target_hook,
822 'nodist_specific' => 1);
824 # Yacc (C & C++).
825 register_language ('name' => 'yacc',
826 'Name' => 'Yacc',
827 'config_vars' => ['YACC'],
828 'flags' => ['YFLAGS'],
829 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
830 'ccer' => 'YACC',
831 'compiler' => 'YACCCOMPILE',
832 'extensions' => ['.y'],
833 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
834 return ($ext,) },
835 'rule_file' => 'yacc',
836 '_finish' => \&lang_yacc_finish,
837 '_target_hook' => \&lang_yacc_target_hook,
838 'nodist_specific' => 1);
839 register_language ('name' => 'yaccxx',
840 'Name' => 'Yacc (C++)',
841 'config_vars' => ['YACC'],
842 'rule_file' => 'yacc',
843 'flags' => ['YFLAGS'],
844 'ccer' => 'YACC',
845 'compiler' => 'YACCCOMPILE',
846 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
847 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
848 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
849 return ($ext,) },
850 '_finish' => \&lang_yacc_finish,
851 '_target_hook' => \&lang_yacc_target_hook,
852 'nodist_specific' => 1);
854 # Lex (C & C++).
855 register_language ('name' => 'lex',
856 'Name' => 'Lex',
857 'config_vars' => ['LEX'],
858 'rule_file' => 'lex',
859 'flags' => ['LFLAGS'],
860 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
861 'ccer' => 'LEX',
862 'compiler' => 'LEXCOMPILE',
863 'extensions' => ['.l'],
864 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
865 return ($ext,) },
866 '_finish' => \&lang_lex_finish,
867 '_target_hook' => \&lang_lex_target_hook,
868 'nodist_specific' => 1);
869 register_language ('name' => 'lexxx',
870 'Name' => 'Lex (C++)',
871 'config_vars' => ['LEX'],
872 'rule_file' => 'lex',
873 'flags' => ['LFLAGS'],
874 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
875 'ccer' => 'LEX',
876 'compiler' => 'LEXCOMPILE',
877 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
878 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
879 return ($ext,) },
880 '_finish' => \&lang_lex_finish,
881 '_target_hook' => \&lang_lex_target_hook,
882 'nodist_specific' => 1);
884 # Assembler.
885 register_language ('name' => 'asm',
886 'Name' => 'Assembler',
887 'config_vars' => ['CCAS', 'CCASFLAGS'],
889 'flags' => ['CCASFLAGS'],
890 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
891 # or anything else required. They can also set CCAS.
892 # Or simply use Preprocessed Assembler.
893 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
894 'ccer' => 'CCAS',
895 'compiler' => 'CCASCOMPILE',
896 'compile_flag' => '-c',
897 'output_flag' => '-o',
898 'extensions' => ['.s']);
900 # Preprocessed Assembler.
901 register_language ('name' => 'cppasm',
902 'Name' => 'Preprocessed Assembler',
903 'config_vars' => ['CCAS', 'CCASFLAGS'],
905 'autodep' => 'CCAS',
906 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
907 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
908 'ccer' => 'CPPAS',
909 'compiler' => 'CPPASCOMPILE',
910 'compile_flag' => '-c',
911 'output_flag' => '-o',
912 'extensions' => ['.S', '.sx']);
914 # Fortran 77
915 register_language ('name' => 'f77',
916 'Name' => 'Fortran 77',
917 'config_vars' => ['F77'],
918 'linker' => 'F77LINK',
919 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
920 'flags' => ['FFLAGS'],
921 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
922 'ccer' => 'F77',
923 'compiler' => 'F77COMPILE',
924 'compile_flag' => '-c',
925 'output_flag' => '-o',
926 'libtool_tag' => 'F77',
927 'lder' => 'F77LD',
928 'ld' => '$(F77)',
929 'pure' => 1,
930 'extensions' => ['.f', '.for']);
932 # Fortran
933 register_language ('name' => 'fc',
934 'Name' => 'Fortran',
935 'config_vars' => ['FC'],
936 'linker' => 'FCLINK',
937 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
938 'flags' => ['FCFLAGS'],
939 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
940 'ccer' => 'FC',
941 'compiler' => 'FCCOMPILE',
942 'compile_flag' => '-c',
943 'output_flag' => '-o',
944 'libtool_tag' => 'FC',
945 'lder' => 'FCLD',
946 'ld' => '$(FC)',
947 'pure' => 1,
948 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
950 # Preprocessed Fortran
951 register_language ('name' => 'ppfc',
952 'Name' => 'Preprocessed Fortran',
953 'config_vars' => ['FC'],
954 'linker' => 'FCLINK',
955 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
956 'lder' => 'FCLD',
957 'ld' => '$(FC)',
958 'flags' => ['FCFLAGS', 'CPPFLAGS'],
959 'ccer' => 'PPFC',
960 'compiler' => 'PPFCCOMPILE',
961 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
962 'compile_flag' => '-c',
963 'output_flag' => '-o',
964 'libtool_tag' => 'FC',
965 'pure' => 1,
966 'extensions' => ['.F90','.F95', '.F03', '.F08']);
968 # Preprocessed Fortran 77
969 #
970 # The current support for preprocessing Fortran 77 just involves
971 # passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
972 # $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
973 # this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
974 # for 'make' Version 3.76 Beta" (specifically, from info file
975 # '(make)Catalogue of Rules').
976 #
977 # A better approach would be to write an Autoconf test
978 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
979 # Fortran 77 compilers know how to do preprocessing. The Autoconf
980 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
981 # preprocessing capabilities, and then fall back on cpp (if cpp were
982 # available).
983 register_language ('name' => 'ppf77',
984 'Name' => 'Preprocessed Fortran 77',
985 'config_vars' => ['F77'],
986 'linker' => 'F77LINK',
987 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
988 'lder' => 'F77LD',
989 'ld' => '$(F77)',
990 'flags' => ['FFLAGS', 'CPPFLAGS'],
991 'ccer' => 'PPF77',
992 'compiler' => 'PPF77COMPILE',
993 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
994 'compile_flag' => '-c',
995 'output_flag' => '-o',
996 'libtool_tag' => 'F77',
997 'pure' => 1,
998 'extensions' => ['.F']);
1000 # Ratfor.
1001 register_language ('name' => 'ratfor',
1002 'Name' => 'Ratfor',
1003 'config_vars' => ['F77'],
1004 'linker' => 'F77LINK',
1005 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1006 'lder' => 'F77LD',
1007 'ld' => '$(F77)',
1008 'flags' => ['RFLAGS', 'FFLAGS'],
1009 # FIXME also FFLAGS.
1010 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1011 'ccer' => 'F77',
1012 'compiler' => 'RCOMPILE',
1013 'compile_flag' => '-c',
1014 'output_flag' => '-o',
1015 'libtool_tag' => 'F77',
1016 'pure' => 1,
1017 'extensions' => ['.r']);
1019 # Java via gcj.
1020 register_language ('name' => 'java',
1021 'Name' => 'Java',
1022 'config_vars' => ['GCJ'],
1023 'linker' => 'GCJLINK',
1024 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1025 'autodep' => 'GCJ',
1026 'flags' => ['GCJFLAGS'],
1027 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1028 'ccer' => 'GCJ',
1029 'compiler' => 'GCJCOMPILE',
1030 'compile_flag' => '-c',
1031 'output_flag' => '-o',
1032 'libtool_tag' => 'GCJ',
1033 'lder' => 'GCJLD',
1034 'ld' => '$(GCJ)',
1035 'pure' => 1,
1036 'extensions' => ['.java', '.class', '.zip', '.jar']);
1038 ################################################################
1040 # Error reporting functions.
1042 # err_am ($MESSAGE, [%OPTIONS])
1043 # -----------------------------
1044 # Uncategorized errors about the current Makefile.am.
1045 sub err_am ($;%)
1046 {
1047 msg_am ('error', @_);
1048 }
1050 # err_ac ($MESSAGE, [%OPTIONS])
1051 # -----------------------------
1052 # Uncategorized errors about configure.ac.
1053 sub err_ac ($;%)
1054 {
1055 msg_ac ('error', @_);
1056 }
1058 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1059 # ---------------------------------------
1060 # Messages about about the current Makefile.am.
1061 sub msg_am ($$;%)
1062 {
1063 my ($channel, $msg, %opts) = @_;
1064 msg $channel, "${am_file}.am", $msg, %opts;
1065 }
1067 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1068 # ---------------------------------------
1069 # Messages about about configure.ac.
1070 sub msg_ac ($$;%)
1071 {
1072 my ($channel, $msg, %opts) = @_;
1073 msg $channel, $configure_ac, $msg, %opts;
1074 }
1076 ################################################################
1078 # subst ($TEXT)
1079 # -------------
1080 # Return a configure-style substitution using the indicated text.
1081 # We do this to avoid having the substitutions directly in automake.in;
1082 # when we do that they are sometimes removed and this causes confusion
1083 # and bugs.
1084 sub subst ($)
1085 {
1086 my ($text) = @_;
1087 return '@' . $text . '@';
1088 }
1090 ################################################################
1093 # $BACKPATH
1094 # &backname ($RELDIR)
1095 # --------------------
1096 # If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
1097 # For instance 'src/foo' => '../..'.
1098 # Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
1099 sub backname ($)
1100 {
1101 my ($file) = @_;
1102 my @res;
1103 foreach (split (/\//, $file))
1104 {
1105 next if $_ eq '.' || $_ eq '';
1106 if ($_ eq '..')
1107 {
1108 pop @res
1109 or prog_error ("trying to reverse path '$file' pointing outside tree");
1110 }
1111 else
1112 {
1113 push (@res, '..');
1114 }
1115 }
1116 return join ('/', @res) || '.';
1117 }
1119 ################################################################
1121 # 'silent-rules' mode handling functions.
1123 # verbose_var (NAME)
1124 # ------------------
1125 # The public variable stem used to implement 'silent-rules'.
1126 sub verbose_var ($)
1127 {
1128 my ($name) = @_;
1129 return 'AM_V_' . $name;
1130 }
1132 # verbose_private_var (NAME)
1133 # --------------------------
1134 # The naming policy for the private variables for 'silent-rules'.
1135 sub verbose_private_var ($)
1136 {
1137 my ($name) = @_;
1138 return 'am__v_' . $name;
1139 }
1141 # define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
1142 # ----------------------------------------------------------
1143 # For 'silent-rules' mode, setup VAR and dispatcher, to expand to
1144 # VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to empty)
1145 # if not.
1146 sub define_verbose_var ($$;$)
1147 {
1148 my ($name, $silent_val, $verbose_val) = @_;
1149 $verbose_val = '' unless defined $verbose_val;
1150 my $var = verbose_var ($name);
1151 my $pvar = verbose_private_var ($name);
1152 my $silent_var = $pvar . '_0';
1153 my $verbose_var = $pvar . '_1';
1154 if (option 'silent-rules')
1155 {
1156 # For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
1157 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1158 # For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
1159 # See AM_SILENT_RULES in m4/silent.m4.
1160 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1161 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1162 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
1163 $silent_val, '', INTERNAL, VAR_ASIS)
1164 if (! vardef ($silent_var, TRUE));
1165 Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
1166 $verbose_val, '', INTERNAL, VAR_ASIS)
1167 if (! vardef ($verbose_var, TRUE));
1168 }
1169 }
1171 # Above should not be needed in the general automake code.
1173 # verbose_flag (NAME)
1174 # -------------------
1175 # Contents of %VERBOSE%: variable to expand before rule command.
1176 sub verbose_flag ($)
1177 {
1178 my ($name) = @_;
1179 return '$(' . verbose_var ($name) . ')'
1180 if (option 'silent-rules');
1181 return '';
1182 }
1184 sub verbose_nodep_flag ($)
1185 {
1186 my ($name) = @_;
1187 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1188 if (option 'silent-rules');
1189 return '';
1190 }
1192 # silent_flag
1193 # -----------
1194 # Contents of %SILENT%: variable to expand to '@' when silent.
1195 sub silent_flag ()
1196 {
1197 return verbose_flag ('at');
1198 }
1200 # define_verbose_tagvar (NAME)
1201 # ----------------------------
1202 # Engage the needed 'silent-rules' machinery for tag NAME.
1203 sub define_verbose_tagvar ($)
1204 {
1205 my ($name) = @_;
1206 if (option 'silent-rules')
1207 {
1208 define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
1209 }
1210 }
1212 # define_verbose_texinfo
1213 # ----------------------
1214 # Engage the needed 'silent-rules' machinery for assorted texinfo commands.
1215 sub define_verbose_texinfo ()
1216 {
1217 my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
1218 foreach my $tag (@tagvars)
1219 {
1220 define_verbose_tagvar($tag);
1221 }
1222 define_verbose_var('texinfo', '-q');
1223 define_verbose_var('texidevnull', '> /dev/null');
1224 }
1226 # define_verbose_libtool
1227 # ----------------------
1228 # Engage the needed 'silent-rules' machinery for 'libtool --silent'.
1229 sub define_verbose_libtool ()
1230 {
1231 define_verbose_var ('lt', '--silent');
1232 return verbose_flag ('lt');
1233 }
1235 sub handle_silent ()
1236 {
1237 return unless option 'silent-rules';
1238 # Define "$(AM_V_P)", expanding to a shell conditional that can be
1239 # used in make recipes to determine whether we are being run in
1240 # silent mode or not. The choice of the name derives from the LISP
1241 # convention of appending the letter 'P' to denote a predicate (see
1242 # also "the '-P' convention" in the Jargon File); we do so for lack
1243 # of a better convention.
1244 define_verbose_var ('P', 'false', ':');
1245 # *Always* provide the user with 'AM_V_GEN' for 'silent-rules' mode.
1246 define_verbose_tagvar ('GEN');
1247 define_verbose_var ('at', '@');
1248 }
1251 ################################################################
1254 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1255 sub handle_options
1256 {
1257 my $var = var ('AUTOMAKE_OPTIONS');
1258 if ($var)
1259 {
1260 if ($var->has_conditional_contents)
1261 {
1262 msg_var ('unsupported', $var,
1263 "'AUTOMAKE_OPTIONS' cannot have conditional contents");
1264 }
1265 my @options = map { { option => $_->[1], where => $_->[0] } }
1266 $var->value_as_list_recursive (cond_filter => TRUE,
1267 location => 1);
1268 return 1 if process_option_list (@options);
1269 }
1271 # Override portability-recursive warning.
1272 switch_warning ('no-portability-recursive')
1273 if option 'silent-rules';
1275 if ($strictness == GNITS)
1276 {
1277 set_option ('readme-alpha', INTERNAL);
1278 set_option ('std-options', INTERNAL);
1279 set_option ('check-news', INTERNAL);
1280 }
1282 return 0;
1283 }
1285 # shadow_unconditionally ($varname, $where)
1286 # -----------------------------------------
1287 # Return a $(variable) that contains all possible values
1288 # $varname can take.
1289 # If the VAR wasn't defined conditionally, return $(VAR).
1290 # Otherwise we create an am__VAR_DIST variable which contains
1291 # all possible values, and return $(am__VAR_DIST).
1292 sub shadow_unconditionally ($$)
1293 {
1294 my ($varname, $where) = @_;
1295 my $var = var $varname;
1296 if ($var->has_conditional_contents)
1297 {
1298 $varname = "am__${varname}_DIST";
1299 my @files = uniq ($var->value_as_list_recursive);
1300 define_pretty_variable ($varname, TRUE, $where, @files);
1301 }
1302 return "\$($varname)"
1303 }
1305 # check_user_variables (@LIST)
1306 # ----------------------------
1307 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1308 # otherwise.
1309 sub check_user_variables (@)
1310 {
1311 my @dont_override = @_;
1312 foreach my $flag (@dont_override)
1313 {
1314 my $var = var $flag;
1315 if ($var)
1316 {
1317 for my $cond ($var->conditions->conds)
1318 {
1319 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1320 {
1321 msg_cond_var ('gnu', $cond, $flag,
1322 "'$flag' is a user variable, "
1323 . "you should not override it;\n"
1324 . "use 'AM_$flag' instead");
1325 }
1326 }
1327 }
1328 }
1329 }
1331 # Call finish function for each language that was used.
1332 sub handle_languages
1333 {
1334 if (! option 'no-dependencies')
1335 {
1336 # Include auto-dep code. Don't include it if DEP_FILES would
1337 # be empty.
1338 if (&saw_sources_p (0) && keys %dep_files)
1339 {
1340 # Set location of depcomp.
1341 &define_variable ('depcomp',
1342 "\$(SHELL) $am_config_aux_dir/depcomp",
1343 INTERNAL);
1344 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1346 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1348 my @deplist = sort keys %dep_files;
1349 # Generate each 'include' individually. Irix 6 make will
1350 # not properly include several files resulting from a
1351 # variable expansion; generating many separate includes
1352 # seems safest.
1353 $output_rules .= "\n";
1354 foreach my $iter (@deplist)
1355 {
1356 $output_rules .= (subst ('AMDEP_TRUE')
1357 . subst ('am__include')
1358 . ' '
1359 . subst ('am__quote')
1360 . $iter
1361 . subst ('am__quote')
1362 . "\n");
1363 }
1365 # Compute the set of directories to remove in distclean-depend.
1366 my @depdirs = uniq (map { dirname ($_) } @deplist);
1367 $output_rules .= &file_contents ('depend',
1368 new Automake::Location,
1369 DEPDIRS => "@depdirs");
1370 }
1371 }
1372 else
1373 {
1374 &define_variable ('depcomp', '', INTERNAL);
1375 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1376 }
1378 my %done;
1380 # Is the C linker needed?
1381 my $needs_c = 0;
1382 foreach my $ext (sort keys %extension_seen)
1383 {
1384 next unless $extension_map{$ext};
1386 my $lang = $languages{$extension_map{$ext}};
1388 my $rule_file = $lang->rule_file || 'depend2';
1390 # Get information on $LANG.
1391 my $pfx = $lang->autodep;
1392 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1394 my ($AMDEP, $FASTDEP) =
1395 (option 'no-dependencies' || $lang->autodep eq 'no')
1396 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1398 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1399 my $verbose_nodep = ($AMDEP eq 'FALSE')
1400 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1401 my $silent = silent_flag ();
1403 my %transform = ('EXT' => $ext,
1404 'PFX' => $pfx,
1405 'FPFX' => $fpfx,
1406 'AMDEP' => $AMDEP,
1407 'FASTDEP' => $FASTDEP,
1408 '-c' => $lang->compile_flag || '',
1409 # These are not used, but they need to be defined
1410 # so &transform do not complain.
1411 SUBDIROBJ => 0,
1412 'DERIVED-EXT' => 'BUG',
1413 DIST_SOURCE => 1,
1414 VERBOSE => $verbose,
1415 'VERBOSE-NODEP' => $verbose_nodep,
1416 SILENT => $silent,
1417 );
1419 # Generate the appropriate rules for this extension.
1420 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1421 || defined $lang->compile)
1422 {
1423 # Some C compilers don't support -c -o. Use it only if really
1424 # needed.
1425 my $output_flag = $lang->output_flag || '';
1426 $output_flag = '-o'
1427 if (! $output_flag
1428 && $lang->name eq 'c'
1429 && option 'subdir-objects');
1431 # Compute a possible derived extension.
1432 # This is not used by depend2.am.
1433 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1435 # When we output an inference rule like '.c.o:' we
1436 # have two cases to consider: either subdir-objects
1437 # is used, or it is not.
1438 #
1439 # In the latter case the rule is used to build objects
1440 # in the current directory, and dependencies always
1441 # go into './$(DEPDIR)/'. We can hard-code this value.
1442 #
1443 # In the former case the rule can be used to build
1444 # objects in sub-directories too. Dependencies should
1445 # go into the appropriate sub-directories, e.g.,
1446 # 'sub/$(DEPDIR)/'. The value of this directory
1447 # needs to be computed on-the-fly.
1448 #
1449 # DEPBASE holds the name of this directory, plus the
1450 # basename part of the object file (extensions Po, TPo,
1451 # Plo, TPlo will be added later as appropriate). It is
1452 # either hardcoded, or a shell variable ('$depbase') that
1453 # will be computed by the rule.
1454 my $depbase =
1455 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1456 $output_rules .=
1457 file_contents ($rule_file,
1458 new Automake::Location,
1459 %transform,
1460 GENERIC => 1,
1462 'DERIVED-EXT' => $der_ext,
1464 DEPBASE => $depbase,
1465 BASE => '$*',
1466 SOURCE => '$<',
1467 SOURCEFLAG => $sourceflags{$ext} || '',
1468 OBJ => '$@',
1469 OBJOBJ => '$@',
1470 LTOBJ => '$@',
1472 COMPILE => '$(' . $lang->compiler . ')',
1473 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1474 -o => $output_flag,
1475 SUBDIROBJ => !! option 'subdir-objects');
1476 }
1478 # Now include code for each specially handled object with this
1479 # language.
1480 my %seen_files = ();
1481 foreach my $file (@{$lang_specific_files{$lang->name}})
1482 {
1483 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1485 # We might see a given object twice, for instance if it is
1486 # used under different conditions.
1487 next if defined $seen_files{$obj};
1488 $seen_files{$obj} = 1;
1490 prog_error ("found " . $lang->name .
1491 " in handle_languages, but compiler not defined")
1492 unless defined $lang->compile;
1494 my $obj_compile = $lang->compile;
1496 # Rewrite each occurrence of 'AM_$flag' in the compile
1497 # rule into '${derived}_$flag' if it exists.
1498 for my $flag (@{$lang->flags})
1499 {
1500 my $val = "${derived}_$flag";
1501 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1502 if set_seen ($val);
1503 }
1505 my $libtool_tag = '';
1506 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1507 {
1508 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1509 }
1511 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1512 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1514 my $ltverbose = define_verbose_libtool ();
1515 my $obj_ltcompile =
1516 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1517 . "--mode=compile $obj_compile";
1519 # We _need_ '-o' for per object rules.
1520 my $output_flag = $lang->output_flag || '-o';
1522 my $depbase = dirname ($obj);
1523 $depbase = ''
1524 if $depbase eq '.';
1525 $depbase .= '/'
1526 unless $depbase eq '';
1527 $depbase .= '$(DEPDIR)/' . basename ($obj);
1529 $output_rules .=
1530 file_contents ($rule_file,
1531 new Automake::Location,
1532 %transform,
1533 GENERIC => 0,
1535 DEPBASE => $depbase,
1536 BASE => $obj,
1537 SOURCE => $source,
1538 SOURCEFLAG => $sourceflags{$srcext} || '',
1539 # Use $myext and not '.o' here, in case
1540 # we are actually building a new source
1541 # file -- e.g. via yacc.
1542 OBJ => "$obj$myext",
1543 OBJOBJ => "$obj.obj",
1544 LTOBJ => "$obj.lo",
1546 VERBOSE => $verbose,
1547 'VERBOSE-NODEP' => $verbose_nodep,
1548 SILENT => $silent,
1549 COMPILE => $obj_compile,
1550 LTCOMPILE => $obj_ltcompile,
1551 -o => $output_flag,
1552 %file_transform);
1553 }
1555 # The rest of the loop is done once per language.
1556 next if defined $done{$lang};
1557 $done{$lang} = 1;
1559 # Load the language dependent Makefile chunks.
1560 my %lang = map { uc ($_) => 0 } keys %languages;
1561 $lang{uc ($lang->name)} = 1;
1562 $output_rules .= file_contents ('lang-compile',
1563 new Automake::Location,
1564 %transform, %lang);
1566 # If the source to a program consists entirely of code from a
1567 # 'pure' language, for instance C++ or Fortran 77, then we
1568 # don't need the C compiler code. However if we run into
1569 # something unusual then we do generate the C code. There are
1570 # probably corner cases here that do not work properly.
1571 # People linking Java code to Fortran code deserve pain.
1572 $needs_c ||= ! $lang->pure;
1574 define_compiler_variable ($lang)
1575 if ($lang->compile);
1577 define_linker_variable ($lang)
1578 if ($lang->link);
1580 require_variables ("$am_file.am", $lang->Name . " source seen",
1581 TRUE, @{$lang->config_vars});
1583 # Call the finisher.
1584 $lang->finish;
1586 # Flags listed in '->flags' are user variables (per GNU Standards),
1587 # they should not be overridden in the Makefile...
1588 my @dont_override = @{$lang->flags};
1589 # ... and so is LDFLAGS.
1590 push @dont_override, 'LDFLAGS' if $lang->link;
1592 check_user_variables @dont_override;
1593 }
1595 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1596 # suffix rule was learned), don't bother with the C stuff. But if
1597 # anything else creeps in, then use it.
1598 $needs_c = 1
1599 if $need_link || suffix_rules_count > 1;
1601 if ($needs_c)
1602 {
1603 &define_compiler_variable ($languages{'c'})
1604 unless defined $done{$languages{'c'}};
1605 define_linker_variable ($languages{'c'});
1606 }
1607 }
1610 # append_exeext { PREDICATE } $MACRO
1611 # ----------------------------------
1612 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1613 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1614 # ignored.
1615 #
1616 # This is typically used on all filenames of *_PROGRAMS, and filenames
1617 # of TESTS that are programs.
1618 sub append_exeext (&$)
1619 {
1620 my ($pred, $macro) = @_;
1622 transform_variable_recursively
1623 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1624 sub {
1625 my ($subvar, $val, $cond, $full_cond) = @_;
1626 # Append $(EXEEXT) unless the user did it already, or it's a
1627 # @substitution@.
1628 $val .= '$(EXEEXT)'
1629 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1630 return $val;
1631 });
1632 }
1635 # Check to make sure a source defined in LIBOBJS is not explicitly
1636 # mentioned. This is a separate function (as opposed to being inlined
1637 # in handle_source_transform) because it isn't always appropriate to
1638 # do this check.
1639 sub check_libobjs_sources
1640 {
1641 my ($one_file, $unxformed) = @_;
1643 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1644 'dist_EXTRA_', 'nodist_EXTRA_')
1645 {
1646 my @files;
1647 my $varname = $prefix . $one_file . '_SOURCES';
1648 my $var = var ($varname);
1649 if ($var)
1650 {
1651 @files = $var->value_as_list_recursive;
1652 }
1653 elsif ($prefix eq '')
1654 {
1655 @files = ($unxformed . '.c');
1656 }
1657 else
1658 {
1659 next;
1660 }
1662 foreach my $file (@files)
1663 {
1664 err_var ($prefix . $one_file . '_SOURCES',
1665 "automatically discovered file '$file' should not" .
1666 " be explicitly mentioned")
1667 if defined $libsources{$file};
1668 }
1669 }
1670 }
1673 # @OBJECTS
1674 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1675 # -----------------------------------------------------------------------------
1676 # Does much of the actual work for handle_source_transform.
1677 # Arguments are:
1678 # $VAR is the name of the variable that the source filenames come from
1679 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1680 # $DERIVED is the name of resulting executable or library
1681 # $OBJ is the object extension (e.g., '.lo')
1682 # $FILE the source file to transform
1683 # %TRANSFORM contains extras arguments to pass to file_contents
1684 # when producing explicit rules
1685 # Result is a list of the names of objects
1686 # %linkers_used will be updated with any linkers needed
1687 sub handle_single_transform ($$$$$%)
1688 {
1689 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1690 my @files = ($_file);
1691 my @result = ();
1693 # Turn sources into objects. We use a while loop like this
1694 # because we might add to @files in the loop.
1695 while (scalar @files > 0)
1696 {
1697 $_ = shift @files;
1699 # Configure substitutions in _SOURCES variables are errors.
1700 if (/^\@.*\@$/)
1701 {
1702 my $parent_msg = '';
1703 $parent_msg = "\nand is referred to from '$topparent'"
1704 if $topparent ne $var->name;
1705 err_var ($var,
1706 "'" . $var->name . "' includes configure substitution '$_'"
1707 . $parent_msg . ";\nconfigure " .
1708 "substitutions are not allowed in _SOURCES variables");
1709 next;
1710 }
1712 # If the source file is in a subdirectory then the '.o' is put
1713 # into the current directory, unless the subdir-objects option
1714 # is in effect.
1716 # Split file name into base and extension.
1717 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1718 my $full = $_;
1719 my $directory = $1 || '';
1720 my $base = $2;
1721 my $extension = $3;
1723 # We must generate a rule for the object if it requires its own flags.
1724 my $renamed = 0;
1725 my ($linker, $object);
1727 # This records whether we've seen a derived source file (e.g.
1728 # yacc output).
1729 my $derived_source = 0;
1731 # This holds the 'aggregate context' of the file we are
1732 # currently examining. If the file is compiled with
1733 # per-object flags, then it will be the name of the object.
1734 # Otherwise it will be 'AM'. This is used by the target hook
1735 # language function.
1736 my $aggregate = 'AM';
1738 $extension = &derive_suffix ($extension, $obj);
1739 my $lang;
1740 if ($extension_map{$extension} &&
1741 ($lang = $languages{$extension_map{$extension}}))
1742 {
1743 # Found the language, so see what it says.
1744 &saw_extension ($extension);
1746 # Do we have per-executable flags for this executable?
1747 my $have_per_exec_flags = 0;
1748 my @peflags = @{$lang->flags};
1749 push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
1750 foreach my $flag (@peflags)
1751 {
1752 if (set_seen ("${derived}_$flag"))
1753 {
1754 $have_per_exec_flags = 1;
1755 last;
1756 }
1757 }
1759 # Note: computed subr call. The language rewrite function
1760 # should return one of the LANG_* constants. It could
1761 # also return a list whose first value is such a constant
1762 # and whose second value is a new source extension which
1763 # should be applied. This means this particular language
1764 # generates another source file which we must then process
1765 # further.
1766 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1767 my ($r, $source_extension)
1768 = &$subr ($directory, $base, $extension,
1769 $obj, $have_per_exec_flags, $var);
1770 # Skip this entry if we were asked not to process it.
1771 next if $r == LANG_IGNORE;
1773 # Now extract linker and other info.
1774 $linker = $lang->linker;
1776 my $this_obj_ext;
1777 if (defined $source_extension)
1778 {
1779 $this_obj_ext = $source_extension;
1780 $derived_source = 1;
1781 }
1782 else
1783 {
1784 $this_obj_ext = $obj;
1785 }
1786 $object = $base . $this_obj_ext;
1788 if ($have_per_exec_flags)
1789 {
1790 # We have a per-executable flag in effect for this
1791 # object. In this case we rewrite the object's
1792 # name to ensure it is unique.
1794 # We choose the name 'DERIVED_OBJECT' to ensure
1795 # (1) uniqueness, and (2) continuity between
1796 # invocations. However, this will result in a
1797 # name that is too long for losing systems, in
1798 # some situations. So we provide _SHORTNAME to
1799 # override.
1801 my $dname = $derived;
1802 my $var = var ($derived . '_SHORTNAME');
1803 if ($var)
1804 {
1805 # FIXME: should use the same Condition as
1806 # the _SOURCES variable. But this is really
1807 # silly overkill -- nobody should have
1808 # conditional shortnames.
1809 $dname = $var->variable_value;
1810 }
1811 $object = $dname . '-' . $object;
1813 prog_error ($lang->name . " flags defined without compiler")
1814 if ! defined $lang->compile;
1816 $renamed = 1;
1817 }
1819 # If rewrite said it was ok, put the object into a
1820 # subdir.
1821 if ($r == LANG_SUBDIR && $directory ne '')
1822 {
1823 $object = $directory . '/' . $object;
1824 }
1826 # If the object file has been renamed (because per-target
1827 # flags are used) we cannot compile the file with an
1828 # inference rule: we need an explicit rule.
1829 #
1830 # If the source is in a subdirectory and the object is in
1831 # the current directory, we also need an explicit rule.
1832 #
1833 # If both source and object files are in a subdirectory
1834 # (this happens when the subdir-objects option is used),
1835 # then the inference will work.
1836 #
1837 # The latter case deserves a historical note. When the
1838 # subdir-objects option was added on 1999-04-11 it was
1839 # thought that inferences rules would work for
1840 # subdirectory objects too. Later, on 1999-11-22,
1841 # automake was changed to output explicit rules even for
1842 # subdir-objects. Nobody remembers why, but this occurred
1843 # soon after the merge of the user-dep-gen-branch so it
1844 # might be related. In late 2003 people complained about
1845 # the size of the generated Makefile.ins (libgcj, with
1846 # 2200+ subdir objects was reported to have a 9MB
1847 # Makefile), so we now rely on inference rules again.
1848 # Maybe we'll run across the same issue as in the past,
1849 # but at least this time we can document it. However since
1850 # dependency tracking has evolved it is possible that
1851 # our old problem no longer exists.
1852 # Using inference rules for subdir-objects has been tested
1853 # with GNU make, Solaris make, Ultrix make, BSD make,
1854 # HP-UX make, and OSF1 make successfully.
1855 if ($renamed
1856 || ($directory ne '' && ! option 'subdir-objects')
1857 # We must also use specific rules for a nodist_ source
1858 # if its language requests it.
1859 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1860 {
1861 my $obj_sans_ext = substr ($object, 0,
1862 - length ($this_obj_ext));
1863 my $full_ansi;
1864 if ($directory ne '')
1865 {
1866 $full_ansi = $directory . '/' . $base . $extension;
1867 }
1868 else
1869 {
1870 $full_ansi = $base . $extension;
1871 }
1873 my @specifics = ($full_ansi, $obj_sans_ext,
1874 # Only use $this_obj_ext in the derived
1875 # source case because in the other case we
1876 # *don't* want $(OBJEXT) to appear here.
1877 ($derived_source ? $this_obj_ext : '.o'),
1878 $extension);
1880 # If we renamed the object then we want to use the
1881 # per-executable flag name. But if this is simply a
1882 # subdir build then we still want to use the AM_ flag
1883 # name.
1884 if ($renamed)
1885 {
1886 unshift @specifics, $derived;
1887 $aggregate = $derived;
1888 }
1889 else
1890 {
1891 unshift @specifics, 'AM';
1892 }
1894 # Each item on this list is a reference to a list consisting
1895 # of four values followed by additional transform flags for
1896 # file_contents. The four values are the derived flag prefix
1897 # (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
1898 # source file, the base name of the output file, and
1899 # the extension for the object file.
1900 push (@{$lang_specific_files{$lang->name}},
1901 [@specifics, %transform]);
1902 }
1903 }
1904 elsif ($extension eq $obj)
1905 {
1906 # This is probably the result of a direct suffix rule.
1907 # In this case we just accept the rewrite.
1908 $object = "$base$extension";
1909 $object = "$directory/$object" if $directory ne '';
1910 $linker = '';
1911 }
1912 else
1913 {
1914 # No error message here. Used to have one, but it was
1915 # very unpopular.
1916 # FIXME: we could potentially do more processing here,
1917 # perhaps treating the new extension as though it were a
1918 # new source extension (as above). This would require
1919 # more restructuring than is appropriate right now.
1920 next;
1921 }
1923 err_am "object '$object' created by '$full' and '$object_map{$object}'"
1924 if (defined $object_map{$object}
1925 && $object_map{$object} ne $full);
1927 my $comp_val = (($object =~ /\.lo$/)
1928 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1929 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1930 if (defined $object_compilation_map{$comp_obj}
1931 && $object_compilation_map{$comp_obj} != 0
1932 # Only see the error once.
1933 && ($object_compilation_map{$comp_obj}
1934 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1935 && $object_compilation_map{$comp_obj} != $comp_val)
1936 {
1937 err_am "object '$comp_obj' created both with libtool and without";
1938 }
1939 $object_compilation_map{$comp_obj} |= $comp_val;
1941 if (defined $lang)
1942 {
1943 # Let the language do some special magic if required.
1944 $lang->target_hook ($aggregate, $object, $full, %transform);
1945 }
1947 if ($derived_source)
1948 {
1949 prog_error ($lang->name . " has automatic dependency tracking")
1950 if $lang->autodep ne 'no';
1951 # Make sure this new source file is handled next. That will
1952 # make it appear to be at the right place in the list.
1953 unshift (@files, $object);
1954 # Distribute derived sources unless the source they are
1955 # derived from is not.
1956 &push_dist_common ($object)
1957 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1958 next;
1959 }
1961 $linkers_used{$linker} = 1;
1963 push (@result, $object);
1965 if (! defined $object_map{$object})
1966 {
1967 my @dep_list = ();
1968 $object_map{$object} = $full;
1970 # If resulting object is in subdir, we need to make
1971 # sure the subdir exists at build time.
1972 if ($object =~ /\//)
1973 {
1974 # FIXME: check that $DIRECTORY is somewhere in the
1975 # project
1977 # For Java, the way we're handling it right now, a
1978 # '..' component doesn't make sense.
1979 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1980 {
1981 err_am "'$full' should not contain a '..' component";
1982 }
1984 # Make sure *all* objects files in the subdirectory are
1985 # removed by "make mostlyclean". Not only this is more
1986 # efficient than listing the object files to be removed
1987 # individually (which would cause an 'rm' invocation for
1988 # each of them -- very inefficient, see bug#10697), it
1989 # would also leave stale object files in the subdirectory
1990 # whenever a source file there is removed or renamed.
1991 $compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
1992 if ($object =~ /\.lo$/)
1993 {
1994 # If we have a libtool object, then we also must remove
1995 # any '.lo' objects in its same subdirectory.
1996 $compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
1997 # Remember to cleanup .libs/ in this directory.
1998 $libtool_clean_directories{$directory} = 1;
1999 }
2001 push (@dep_list, require_build_directory ($directory));
2003 # If we're generating dependencies, we also want
2004 # to make sure that the appropriate subdir of the
2005 # .deps directory is created.
2006 push (@dep_list,
2007 require_build_directory ($directory . '/$(DEPDIR)'))
2008 unless option 'no-dependencies';
2009 }
2011 &pretty_print_rule ($object . ':', "\t", @dep_list)
2012 if scalar @dep_list > 0;
2013 }
2015 # Transform .o or $o file into .P file (for automatic
2016 # dependency code).
2017 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2018 # might fail over them in an include statement.
2019 # Leading double slashes may be special, as per Posix, so deal
2020 # with them carefully.
2021 if ($lang && $lang->autodep ne 'no')
2022 {
2023 my $depfile = $object;
2024 $depfile =~ s/\.([^.]*)$/.P$1/;
2025 $depfile =~ s/\$\(OBJEXT\)$/o/;
2026 my $maybe_extra_leading_slash = '';
2027 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2028 $depfile =~ s,/+,/,g;
2029 my $basename = basename ($depfile);
2030 # This might make $dirname empty, but we account for that below.
2031 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2032 $dirname = $maybe_extra_leading_slash . $dirname;
2033 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2034 }
2035 }
2037 return @result;
2038 }
2041 # $LINKER
2042 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2043 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2044 # ---------------------------------------------------------------------------
2045 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2046 #
2047 # Arguments are:
2048 # $VAR is the name of the _SOURCES variable
2049 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2050 # it will be generated and returned).
2051 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2052 # work done to determine the linker will be).
2053 # $ONE_FILE is the canonical (transformed) name of object to build
2054 # $OBJ is the object extension (i.e. either '.o' or '.lo').
2055 # $TOPPARENT is the _SOURCES variable being processed.
2056 # $WHERE context into which this definition is done
2057 # %TRANSFORM extra arguments to pass to file_contents when producing
2058 # rules
2059 #
2060 # Result is a pair ($LINKER, $OBJVAR):
2061 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2062 sub define_objects_from_sources ($$$$$$$%)
2063 {
2064 my ($var, $objvar, $nodefine, $one_file,
2065 $obj, $topparent, $where, %transform) = @_;
2067 my $needlinker = "";
2069 transform_variable_recursively
2070 ($var, $objvar, 'am__objects', $nodefine, $where,
2071 # The transform code to run on each filename.
2072 sub {
2073 my ($subvar, $val, $cond, $full_cond) = @_;
2074 my @trans = handle_single_transform ($subvar, $topparent,
2075 $one_file, $obj, $val,
2076 %transform);
2077 $needlinker = "true" if @trans;
2078 return @trans;
2079 });
2081 return $needlinker;
2082 }
2085 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2086 # -----------------------------------------------------------------------------
2087 # Handle SOURCE->OBJECT transform for one program or library.
2088 # Arguments are:
2089 # canonical (transformed) name of target to build
2090 # actual target of object to build
2091 # object extension (i.e., either '.o' or '$o')
2092 # location of the source variable
2093 # extra arguments to pass to file_contents when producing rules
2094 # Return the name of the linker variable that must be used.
2095 # Empty return means just use 'LINK'.
2096 sub handle_source_transform ($$$$%)
2097 {
2098 # one_file is canonical name. unxformed is given name. obj is
2099 # object extension.
2100 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2102 my $linker = '';
2104 # No point in continuing if _OBJECTS is defined.
2105 return if reject_var ($one_file . '_OBJECTS',
2106 $one_file . '_OBJECTS should not be defined');
2108 my %used_pfx = ();
2109 my $needlinker;
2110 %linkers_used = ();
2111 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2112 'dist_EXTRA_', 'nodist_EXTRA_')
2113 {
2114 my $varname = $prefix . $one_file . "_SOURCES";
2115 my $var = var $varname;
2116 next unless $var;
2118 # We are going to define _OBJECTS variables using the prefix.
2119 # Then we glom them all together. So we can't use the null
2120 # prefix here as we need it later.
2121 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2123 # Keep track of which prefixes we saw.
2124 $used_pfx{$xpfx} = 1
2125 unless $prefix =~ /EXTRA_/;
2127 push @sources, "\$($varname)";
2128 push @dist_sources, shadow_unconditionally ($varname, $where)
2129 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2131 $needlinker |=
2132 define_objects_from_sources ($varname,
2133 $xpfx . $one_file . '_OBJECTS',
2134 $prefix =~ /EXTRA_/,
2135 $one_file, $obj, $varname, $where,
2136 DIST_SOURCE => ($prefix !~ /^nodist_/),
2137 %transform);
2138 }
2139 if ($needlinker)
2140 {
2141 $linker ||= &resolve_linker (%linkers_used);
2142 }
2144 my @keys = sort keys %used_pfx;
2145 if (scalar @keys == 0)
2146 {
2147 # The default source for libfoo.la is libfoo.c, but for
2148 # backward compatibility we first look at libfoo_la.c,
2149 # if no default source suffix is given.
2150 my $old_default_source = "$one_file.c";
2151 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2152 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2153 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2154 if $default_source_ext =~ /[\t ]/;
2155 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2156 if ($old_default_source ne $default_source
2157 && !$ext_var
2158 && (rule $old_default_source
2159 || rule '$(srcdir)/' . $old_default_source
2160 || rule '${srcdir}/' . $old_default_source
2161 || -f $old_default_source))
2162 {
2163 my $loc = $where->clone;
2164 $loc->pop_context;
2165 msg ('obsolete', $loc,
2166 "the default source for '$unxformed' has been changed "
2167 . "to '$default_source'.\n(Using '$old_default_source' for "
2168 . "backward compatibility.)");
2169 $default_source = $old_default_source;
2170 }
2171 # If a rule exists to build this source with a $(srcdir)
2172 # prefix, use that prefix in our variables too. This is for
2173 # the sake of BSD Make.
2174 if (rule '$(srcdir)/' . $default_source
2175 || rule '${srcdir}/' . $default_source)
2176 {
2177 $default_source = '$(srcdir)/' . $default_source;
2178 }
2180 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2181 push (@sources, $default_source);
2182 push (@dist_sources, $default_source);
2184 %linkers_used = ();
2185 my (@result) =
2186 handle_single_transform ($one_file . '_SOURCES',
2187 $one_file . '_SOURCES',
2188 $one_file, $obj,
2189 $default_source, %transform);
2190 $linker ||= &resolve_linker (%linkers_used);
2191 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2192 }
2193 else
2194 {
2195 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2196 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2197 }
2199 # If we want to use 'LINK' we must make sure it is defined.
2200 if ($linker eq '')
2201 {
2202 $need_link = 1;
2203 }
2205 return $linker;
2206 }
2209 # handle_lib_objects ($XNAME, $VAR)
2210 # ---------------------------------
2211 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2212 # Also, generate _DEPENDENCIES variable if appropriate.
2213 # Arguments are:
2214 # transformed name of object being built, or empty string if no object
2215 # name of _LDADD/_LIBADD-type variable to examine
2216 # Returns 1 if LIBOBJS seen, 0 otherwise.
2217 sub handle_lib_objects
2218 {
2219 my ($xname, $varname) = @_;
2221 my $var = var ($varname);
2222 prog_error "'$varname' undefined"
2223 unless $var;
2224 prog_error "unexpected variable name '$varname'"
2225 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2226 my $prefix = $1 || 'AM_';
2228 my $seen_libobjs = 0;
2229 my $flagvar = 0;
2231 transform_variable_recursively
2232 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2233 ! $xname, INTERNAL,
2234 # Transformation function, run on each filename.
2235 sub {
2236 my ($subvar, $val, $cond, $full_cond) = @_;
2238 if ($val =~ /^-/)
2239 {
2240 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2241 if ($val !~ /^-[lL]/ &&
2242 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2243 # for Libtool libraries or programs. (Actually we are a bit
2244 # lax here since this code also applies to non-libtool
2245 # libraries or programs, for which -dlopen and -dlopreopen
2246 # are pure nonsense. Diagnosing this doesn't seem very
2247 # important: the developer will quickly get complaints from
2248 # the linker.)
2249 $val !~ /^-dl(?:pre)?open$/ &&
2250 # Only get this error once.
2251 ! $flagvar)
2252 {
2253 $flagvar = 1;
2254 # FIXME: should display a stack of nested variables
2255 # as context when $var != $subvar.
2256 err_var ($var, "linker flags such as '$val' belong in "
2257 . "'${prefix}LDFLAGS'");
2258 }
2259 return ();
2260 }
2261 elsif ($val !~ /^\@.*\@$/)
2262 {
2263 # Assume we have a file of some sort, and output it into the
2264 # dependency variable. Autoconf substitutions are not output;
2265 # rarely is a new dependency substituted into e.g. foo_LDADD
2266 # -- but bad things (e.g. -lX11) are routinely substituted.
2267 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2268 # and handled specially below.
2269 return $val;
2270 }
2271 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2272 {
2273 handle_LIBOBJS ($subvar, $cond, $1);
2274 $seen_libobjs = 1;
2275 return $val;
2276 }
2277 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2278 {
2279 handle_ALLOCA ($subvar, $cond, $1);
2280 return $val;
2281 }
2282 else
2283 {
2284 return ();
2285 }
2286 });
2288 return $seen_libobjs;
2289 }
2291 # handle_LIBOBJS_or_ALLOCA ($VAR)
2292 # -------------------------------
2293 # Definitions common to LIBOBJS and ALLOCA.
2294 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2295 sub handle_LIBOBJS_or_ALLOCA ($)
2296 {
2297 my ($var) = @_;
2299 my $dir = '';
2301 # If LIBOBJS files must be built in another directory we have
2302 # to define LIBOBJDIR and ensure the files get cleaned.
2303 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2304 # is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
2305 if ($config_libobj_dir
2306 && $relative_dir ne $config_libobj_dir)
2307 {
2308 if (option 'subdir-objects')
2309 {
2310 # In the top-level Makefile we do not use $(top_builddir), because
2311 # we are already there, and since the targets are built without
2312 # a $(top_builddir), it helps BSD Make to match them with
2313 # dependencies.
2314 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2315 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2316 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2317 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2318 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2319 # be created by libtool as a side-effect of creating LTLIBOBJS).
2320 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2321 }
2322 else
2323 {
2324 error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
2325 . " 'subdir-objects' is not set");
2326 }
2327 }
2329 return $dir;
2330 }
2332 sub handle_LIBOBJS ($$$)
2333 {
2334 my ($var, $cond, $lt) = @_;
2335 my $myobjext = $lt ? 'lo' : 'o';
2336 $lt ||= '';
2338 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2339 if ! keys %libsources;
2341 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2343 foreach my $iter (keys %libsources)
2344 {
2345 if ($iter =~ /\.[cly]$/)
2346 {
2347 &saw_extension ($&);
2348 &saw_extension ('.c');
2349 }
2351 if ($iter =~ /\.h$/)
2352 {
2353 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2354 }
2355 elsif ($iter ne 'alloca.c')
2356 {
2357 my $rewrite = $iter;
2358 $rewrite =~ s/\.c$/.P$myobjext/;
2359 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2360 $rewrite = "^" . quotemeta ($iter) . "\$";
2361 # Only require the file if it is not a built source.
2362 my $bs = var ('BUILT_SOURCES');
2363 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2364 {
2365 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2366 }
2367 }
2368 }
2369 }
2371 sub handle_ALLOCA ($$$)
2372 {
2373 my ($var, $cond, $lt) = @_;
2374 my $myobjext = $lt ? 'lo' : 'o';
2375 $lt ||= '';
2376 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2378 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2379 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2380 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2381 &saw_extension ('.c');
2382 }
2384 # Canonicalize the input parameter
2385 sub canonicalize
2386 {
2387 my ($string) = @_;
2388 $string =~ tr/A-Za-z0-9_\@/_/c;
2389 return $string;
2390 }
2392 # Canonicalize a name, and check to make sure the non-canonical name
2393 # is never used. Returns canonical name. Arguments are name and a
2394 # list of suffixes to check for.
2395 sub check_canonical_spelling
2396 {
2397 my ($name, @suffixes) = @_;
2399 my $xname = &canonicalize ($name);
2400 if ($xname ne $name)
2401 {
2402 foreach my $xt (@suffixes)
2403 {
2404 reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
2405 }
2406 }
2408 return $xname;
2409 }
2412 # handle_compile ()
2413 # -----------------
2414 # Set up the compile suite.
2415 sub handle_compile ()
2416 {
2417 return if ! $must_handle_compiled_objects;
2419 # Boilerplate.
2420 my $default_includes = '';
2421 if (! option 'nostdinc')
2422 {
2423 my @incs = ('-I.', subst ('am__isrc'));
2425 my $var = var 'CONFIG_HEADER';
2426 if ($var)
2427 {
2428 foreach my $hdr (split (' ', $var->variable_value))
2429 {
2430 push @incs, '-I' . dirname ($hdr);
2431 }
2432 }
2433 # We want '-I. -I$(srcdir)', but the latter -I is redundant
2434 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2435 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2436 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2437 # to just put @am__isrc@ right after '-I.', without a space.
2438 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2439 }
2441 my (@mostly_rms, @dist_rms);
2442 foreach my $item (sort keys %compile_clean_files)
2443 {
2444 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2445 {
2446 push (@mostly_rms, "\t-rm -f $item");
2447 }
2448 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2449 {
2450 push (@dist_rms, "\t-rm -f $item");
2451 }
2452 else
2453 {
2454 prog_error 'invalid entry in %compile_clean_files';
2455 }
2456 }
2458 my ($coms, $vars, $rules) =
2459 &file_contents_internal (1, "$libdir/am/compile.am",
2460 new Automake::Location,
2461 ('DEFAULT_INCLUDES' => $default_includes,
2462 'MOSTLYRMS' => join ("\n", @mostly_rms),
2463 'DISTRMS' => join ("\n", @dist_rms)));
2464 $output_vars .= $vars;
2465 $output_rules .= "$coms$rules";
2466 }
2468 # handle_libtool ()
2469 # -----------------
2470 # Handle libtool rules.
2471 sub handle_libtool
2472 {
2473 return unless var ('LIBTOOL');
2475 # Libtool requires some files, but only at top level.
2476 # (Starting with Libtool 2.0 we do not have to bother. These
2477 # requirements are done with AC_REQUIRE_AUX_FILE.)
2478 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2479 if $relative_dir eq '.' && ! $libtool_new_api;
2481 my @libtool_rms;
2482 foreach my $item (sort keys %libtool_clean_directories)
2483 {
2484 my $dir = ($item eq '.') ? '' : "$item/";
2485 # .libs is for Unix, _libs for DOS.
2486 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2487 }
2489 check_user_variables 'LIBTOOLFLAGS';
2491 # Output the libtool compilation rules.
2492 $output_rules .= &file_contents ('libtool',
2493 new Automake::Location,
2494 LTRMS => join ("\n", @libtool_rms));
2495 }
2497 # handle_programs ()
2498 # ------------------
2499 # Handle C programs.
2500 sub handle_programs
2501 {
2502 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2503 'bin', 'sbin', 'libexec', 'pkglibexec',
2504 'noinst', 'check');
2505 return if ! @proglist;
2506 $must_handle_compiled_objects = 1;
2508 my $seen_global_libobjs =
2509 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2511 foreach my $pair (@proglist)
2512 {
2513 my ($where, $one_file) = @$pair;
2515 my $seen_libobjs = 0;
2516 my $obj = '.$(OBJEXT)';
2518 $known_programs{$one_file} = $where;
2520 # Canonicalize names and check for misspellings.
2521 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2522 '_SOURCES', '_OBJECTS',
2523 '_DEPENDENCIES');
2525 $where->push_context ("while processing program '$one_file'");
2526 $where->set (INTERNAL->get);
2528 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2529 NONLIBTOOL => 1, LIBTOOL => 0);
2531 if (var ($xname . "_LDADD"))
2532 {
2533 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2534 }
2535 else
2536 {
2537 # User didn't define prog_LDADD override. So do it.
2538 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2540 # This does a bit too much work. But we need it to
2541 # generate _DEPENDENCIES when appropriate.
2542 if (var ('LDADD'))
2543 {
2544 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2545 }
2546 }
2548 reject_var ($xname . '_LIBADD',
2549 "use '${xname}_LDADD', not '${xname}_LIBADD'");
2551 set_seen ($xname . '_DEPENDENCIES');
2552 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2553 set_seen ($xname . '_LDFLAGS');
2555 # Determine program to use for link.
2556 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2557 $vlink = verbose_flag ($vlink || 'GEN');
2559 # If the resulting program lies into a subdirectory,
2560 # make sure this directory will exist.
2561 my $dirstamp = require_build_directory_maybe ($one_file);
2563 $libtool_clean_directories{dirname ($one_file)} = 1;
2565 $output_rules .= &file_contents ('program',
2566 $where,
2567 PROGRAM => $one_file,
2568 XPROGRAM => $xname,
2569 XLINK => $xlink,
2570 VERBOSE => $vlink,
2571 DIRSTAMP => $dirstamp,
2572 EXEEXT => '$(EXEEXT)');
2574 if ($seen_libobjs || $seen_global_libobjs)
2575 {
2576 if (var ($xname . '_LDADD'))
2577 {
2578 &check_libobjs_sources ($xname, $xname . '_LDADD');
2579 }
2580 elsif (var ('LDADD'))
2581 {
2582 &check_libobjs_sources ($xname, 'LDADD');
2583 }
2584 }
2585 }
2586 }
2589 # handle_libraries ()
2590 # -------------------
2591 # Handle libraries.
2592 sub handle_libraries
2593 {
2594 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2595 'lib', 'pkglib', 'noinst', 'check');
2596 return if ! @liblist;
2597 $must_handle_compiled_objects = 1;
2599 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2600 'noinst', 'check');
2602 if (@prefix)
2603 {
2604 my $var = rvar ($prefix[0] . '_LIBRARIES');
2605 $var->requires_variables ('library used', 'RANLIB');
2606 }
2608 &define_variable ('AR', 'ar', INTERNAL);
2609 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2610 &define_verbose_tagvar ('AR');
2612 foreach my $pair (@liblist)
2613 {
2614 my ($where, $onelib) = @$pair;
2616 my $seen_libobjs = 0;
2617 # Check that the library fits the standard naming convention.
2618 my $bn = basename ($onelib);
2619 if ($bn !~ /^lib.*\.a$/)
2620 {
2621 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2622 my $suggestion = dirname ($onelib) . "/$bn";
2623 $suggestion =~ s|^\./||g;
2624 msg ('error-gnu/warn', $where,
2625 "'$onelib' is not a standard library name\n"
2626 . "did you mean '$suggestion'?")
2627 }
2629 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2631 $where->push_context ("while processing library '$onelib'");
2632 $where->set (INTERNAL->get);
2634 my $obj = '.$(OBJEXT)';
2636 # Canonicalize names and check for misspellings.
2637 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2638 '_OBJECTS', '_DEPENDENCIES',
2639 '_AR');
2641 if (! var ($xlib . '_AR'))
2642 {
2643 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2644 }
2646 # Generate support for conditional object inclusion in
2647 # libraries.
2648 if (var ($xlib . '_LIBADD'))
2649 {
2650 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2651 {
2652 $seen_libobjs = 1;
2653 }
2654 }
2655 else
2656 {
2657 &define_variable ($xlib . "_LIBADD", '', $where);
2658 }
2660 reject_var ($xlib . '_LDADD',
2661 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2663 # Make sure we at look at this.
2664 set_seen ($xlib . '_DEPENDENCIES');
2665 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2667 &handle_source_transform ($xlib, $onelib, $obj, $where,
2668 NONLIBTOOL => 1, LIBTOOL => 0);
2670 # If the resulting library lies into a subdirectory,
2671 # make sure this directory will exist.
2672 my $dirstamp = require_build_directory_maybe ($onelib);
2673 my $verbose = verbose_flag ('AR');
2674 my $silent = silent_flag ();
2676 $output_rules .= &file_contents ('library',
2677 $where,
2678 VERBOSE => $verbose,
2679 SILENT => $silent,
2680 LIBRARY => $onelib,
2681 XLIBRARY => $xlib,
2682 DIRSTAMP => $dirstamp);
2684 if ($seen_libobjs)
2685 {
2686 if (var ($xlib . '_LIBADD'))
2687 {
2688 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2689 }
2690 }
2692 if (! $seen_ar)
2693 {
2694 msg ('extra-portability', $where,
2695 "'$onelib': linking libraries using a non-POSIX\n"
2696 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2697 }
2698 }
2699 }
2702 # handle_ltlibraries ()
2703 # ---------------------
2704 # Handle shared libraries.
2705 sub handle_ltlibraries
2706 {
2707 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2708 'noinst', 'lib', 'pkglib', 'check');
2709 return if ! @liblist;
2710 $must_handle_compiled_objects = 1;
2712 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2713 'noinst', 'check');
2715 if (@prefix)
2716 {
2717 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2718 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2719 }
2721 my %instdirs = ();
2722 my %instsubdirs = ();
2723 my %instconds = ();
2724 my %liblocations = (); # Location (in Makefile.am) of each library.
2726 foreach my $key (@prefix)
2727 {
2728 # Get the installation directory of each library.
2729 my $dir = $key;
2730 my $strip_subdir = 1;
2731 if ($dir =~ /^nobase_/)
2732 {
2733 $dir =~ s/^nobase_//;
2734 $strip_subdir = 0;
2735 }
2736 my $var = rvar ($key . '_LTLIBRARIES');
2738 # We reject libraries which are installed in several places
2739 # in the same condition, because we can only specify one
2740 # '-rpath' option.
2741 $var->traverse_recursively
2742 (sub
2743 {
2744 my ($var, $val, $cond, $full_cond) = @_;
2745 my $hcond = $full_cond->human;
2746 my $where = $var->rdef ($cond)->location;
2747 my $ldir = '';
2748 $ldir = '/' . dirname ($val)
2749 if (!$strip_subdir);
2750 # A library cannot be installed in different directories
2751 # in overlapping conditions.
2752 if (exists $instconds{$val})
2753 {
2754 my ($msg, $acond) =
2755 $instconds{$val}->ambiguous_p ($val, $full_cond);
2757 if ($msg)
2758 {
2759 error ($where, $msg, partial => 1);
2760 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
2761 $dirtxt = "built for '$dir'"
2762 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2763 my $dircond =
2764 $full_cond->true ? "" : " in condition $hcond";
2766 error ($where, "'$val' should be $dirtxt$dircond ...",
2767 partial => 1);
2769 my $hacond = $acond->human;
2770 my $adir = $instdirs{$val}{$acond};
2771 my $adirtxt = "installed in '$adir'";
2772 $adirtxt = "built for '$adir'"
2773 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2774 || $adir eq 'check');
2775 my $adircond = $acond->true ? "" : " in condition $hacond";
2777 my $onlyone = ($dir ne $adir) ?
2778 ("\nLibtool libraries can be built for only one "
2779 . "destination") : "";
2781 error ($liblocations{$val}{$acond},
2782 "... and should also be $adirtxt$adircond.$onlyone");
2783 return;
2784 }
2785 }
2786 else
2787 {
2788 $instconds{$val} = new Automake::DisjConditions;
2789 }
2790 $instdirs{$val}{$full_cond} = $dir;
2791 $instsubdirs{$val}{$full_cond} = $ldir;
2792 $liblocations{$val}{$full_cond} = $where;
2793 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2794 },
2795 sub
2796 {
2797 return ();
2798 },
2799 skip_ac_subst => 1);
2800 }
2802 foreach my $pair (@liblist)
2803 {
2804 my ($where, $onelib) = @$pair;
2806 my $seen_libobjs = 0;
2807 my $obj = '.lo';
2809 # Canonicalize names and check for misspellings.
2810 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2811 '_SOURCES', '_OBJECTS',
2812 '_DEPENDENCIES');
2814 # Check that the library fits the standard naming convention.
2815 my $libname_rx = '^lib.*\.la';
2816 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2817 my $ldvar2 = var ('LDFLAGS');
2818 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2819 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2820 {
2821 # Relax name checking for libtool modules.
2822 $libname_rx = '\.la';
2823 }
2825 my $bn = basename ($onelib);
2826 if ($bn !~ /$libname_rx$/)
2827 {
2828 my $type = 'library';
2829 if ($libname_rx eq '\.la')
2830 {
2831 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2832 $type = 'module';
2833 }
2834 else
2835 {
2836 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2837 }
2838 my $suggestion = dirname ($onelib) . "/$bn";
2839 $suggestion =~ s|^\./||g;
2840 msg ('error-gnu/warn', $where,
2841 "'$onelib' is not a standard libtool $type name\n"
2842 . "did you mean '$suggestion'?")
2843 }
2845 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2847 $where->push_context ("while processing Libtool library '$onelib'");
2848 $where->set (INTERNAL->get);
2850 # Make sure we look at these.
2851 set_seen ($xlib . '_LDFLAGS');
2852 set_seen ($xlib . '_DEPENDENCIES');
2853 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2855 # Generate support for conditional object inclusion in
2856 # libraries.
2857 if (var ($xlib . '_LIBADD'))
2858 {
2859 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2860 {
2861 $seen_libobjs = 1;
2862 }
2863 }
2864 else
2865 {
2866 &define_variable ($xlib . "_LIBADD", '', $where);
2867 }
2869 reject_var ("${xlib}_LDADD",
2870 "use '${xlib}_LIBADD', not '${xlib}_LDADD'");
2873 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2874 NONLIBTOOL => 0, LIBTOOL => 1);
2876 # Determine program to use for link.
2877 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2878 $vlink = verbose_flag ($vlink || 'GEN');
2880 my $rpathvar = "am_${xlib}_rpath";
2881 my $rpath = "\$($rpathvar)";
2882 foreach my $rcond ($instconds{$onelib}->conds)
2883 {
2884 my $val;
2885 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2886 || $instdirs{$onelib}{$rcond} eq 'noinst'
2887 || $instdirs{$onelib}{$rcond} eq 'check')
2888 {
2889 # It's an EXTRA_ library, so we can't specify -rpath,
2890 # because we don't know where the library will end up.
2891 # The user probably knows, but generally speaking automake
2892 # doesn't -- and in fact configure could decide
2893 # dynamically between two different locations.
2894 $val = '';
2895 }
2896 else
2897 {
2898 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2899 $val .= $instsubdirs{$onelib}{$rcond}
2900 if defined $instsubdirs{$onelib}{$rcond};
2901 }
2902 if ($rcond->true)
2903 {
2904 # If $rcond is true there is only one condition and
2905 # there is no point defining an helper variable.
2906 $rpath = $val;
2907 }
2908 else
2909 {
2910 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2911 }
2912 }
2914 # If the resulting library lies into a subdirectory,
2915 # make sure this directory will exist.
2916 my $dirstamp = require_build_directory_maybe ($onelib);
2918 # Remember to cleanup .libs/ in this directory.
2919 my $dirname = dirname $onelib;
2920 $libtool_clean_directories{$dirname} = 1;
2922 $output_rules .= &file_contents ('ltlibrary',
2923 $where,
2924 LTLIBRARY => $onelib,
2925 XLTLIBRARY => $xlib,
2926 RPATH => $rpath,
2927 XLINK => $xlink,
2928 VERBOSE => $vlink,
2929 DIRSTAMP => $dirstamp);
2930 if ($seen_libobjs)
2931 {
2932 if (var ($xlib . '_LIBADD'))
2933 {
2934 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2935 }
2936 }
2938 if (! $seen_ar)
2939 {
2940 msg ('extra-portability', $where,
2941 "'$onelib': linking libtool libraries using a non-POSIX\n"
2942 . "archiver requires 'AM_PROG_AR' in '$configure_ac'")
2943 }
2944 }
2945 }
2947 # See if any _SOURCES variable were misspelled.
2948 sub check_typos ()
2949 {
2950 # It is ok if the user sets this particular variable.
2951 set_seen 'AM_LDFLAGS';
2953 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2954 {
2955 foreach my $var (variables $primary)
2956 {
2957 my $varname = $var->name;
2958 # A configure variable is always legitimate.
2959 next if exists $configure_vars{$varname};
2961 for my $cond ($var->conditions->conds)
2962 {
2963 $varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2964 msg_var ('syntax', $var, "variable '$varname' is defined but no"
2965 . " program or\nlibrary has '$1' as canonical name"
2966 . " (possible typo)")
2967 unless $var->rdef ($cond)->seen;
2968 }
2969 }
2970 }
2971 }
2974 # Handle scripts.
2975 sub handle_scripts
2976 {
2977 # NOTE we no longer automatically clean SCRIPTS, because it is
2978 # useful to sometimes distribute scripts verbatim. This happens
2979 # e.g. in Automake itself.
2980 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2981 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
2982 'noinst', 'check');
2983 }
2988 ## ------------------------ ##
2989 ## Handling Texinfo files. ##
2990 ## ------------------------ ##
2992 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2993 # &scan_texinfo_file ($FILENAME)
2994 # ------------------------------
2995 # $OUTFILE - name of the info file produced by $FILENAME.
2996 # $VFILE - name of the version.texi file used (undef if none).
2997 # @CLEAN_FILES - list of byproducts (indexes etc.)
2998 sub scan_texinfo_file ($)
2999 {
3000 my ($filename) = @_;
3002 # Some of the following extensions are always created, no matter
3003 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3004 # are only created when they are used. We used to scan $FILENAME
3005 # for their use, but that is not enough: they could be used in
3006 # included files. We can't scan included files because we don't
3007 # know the include path. Therefore we always erase these files, no
3008 # matter whether they are used or not.
3009 #
3010 # (tmp is only created if an @macro is used and a certain e-TeX
3011 # feature is not available.)
3012 my %clean_suffixes =
3013 map { $_ => 1 } (qw(aux log toc tmp
3014 cp cps
3015 fn fns
3016 ky kys
3017 vr vrs
3018 tp tps
3019 pg pgs)); # grep 'new.*index' texinfo.tex
3021 my $texi = new Automake::XFile "< $filename";
3022 verb "reading $filename";
3024 my ($outfile, $vfile);
3025 while ($_ = $texi->getline)
3026 {
3027 if (/^\@setfilename +(\S+)/)
3028 {
3029 # Honor only the first @setfilename. (It's possible to have
3030 # more occurrences later if the manual shows examples of how
3031 # to use @setfilename...)
3032 next if $outfile;
3034 $outfile = $1;
3035 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3036 {
3037 error ("$filename:$.",
3038 "output '$outfile' has unrecognized extension");
3039 return;
3040 }
3041 }
3042 # A "version.texi" file is actually any file whose name matches
3043 # "vers*.texi".
3044 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3045 {
3046 $vfile = $1;
3047 }
3049 # Try to find new or unused indexes.
3051 # Creating a new category of index.
3052 elsif (/^\@def(code)?index (\w+)/)
3053 {
3054 $clean_suffixes{$2} = 1;
3055 $clean_suffixes{"$2s"} = 1;
3056 }
3058 # Merging an index into an another.
3059 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3060 {
3061 delete $clean_suffixes{"$2s"};
3062 $clean_suffixes{"$3s"} = 1;
3063 }
3065 }
3067 if (! $outfile)
3068 {
3069 err_am "'$filename' missing \@setfilename";
3070 return;
3071 }
3073 my $infobase = basename ($filename);
3074 $infobase =~ s/\.te?xi(nfo)?$//;
3075 return ($outfile, $vfile,
3076 map { "$infobase.$_" } (sort keys %clean_suffixes));
3077 }
3080 # ($DIRSTAMP, @CLEAN_FILES)
3081 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3082 # ------------------------------------------------------------------
3083 # SOURCE - the source Texinfo file
3084 # DEST - the destination Info file
3085 # INSRC - whether DEST should be built in the source tree
3086 # DEPENDENCIES - known dependencies
3087 sub output_texinfo_build_rules ($$$@)
3088 {
3089 my ($source, $dest, $insrc, @deps) = @_;
3091 # Split 'a.texi' into 'a' and '.texi'.
3092 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3093 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3095 $ssfx ||= "";
3096 $dsfx ||= "";
3098 # We can output two kinds of rules: the "generic" rules use Make
3099 # suffix rules and are appropriate when $source and $dest do not lie
3100 # in a sub-directory; the "specific" rules are needed in the other
3101 # case.
3102 #
3103 # The former are output only once (this is not really apparent here,
3104 # but just remember that some logic deeper in Automake will not
3105 # output the same rule twice); while the later need to be output for
3106 # each Texinfo source.
3107 my $generic;
3108 my $makeinfoflags;
3109 my $sdir = dirname $source;
3110 if ($sdir eq '.' && dirname ($dest) eq '.')
3111 {
3112 $generic = 1;
3113 $makeinfoflags = '-I $(srcdir)';
3114 }
3115 else
3116 {
3117 $generic = 0;
3118 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3119 }
3121 # A directory can contain two kinds of info files: some built in the
3122 # source tree, and some built in the build tree. The rules are
3123 # different in each case. However we cannot output two different
3124 # set of generic rules. Because in-source builds are more usual, we
3125 # use generic rules in this case and fall back to "specific" rules
3126 # for build-dir builds. (It should not be a problem to invert this
3127 # if needed.)
3128 $generic = 0 unless $insrc;
3130 # We cannot use a suffix rule to build info files with an empty
3131 # extension. Otherwise we would output a single suffix inference
3132 # rule, with separate dependencies, as in
3133 #
3134 # .texi:
3135 # $(MAKEINFO) ...
3136 # foo.info: foo.texi
3137 #
3138 # which confuse Solaris make. (See the Autoconf manual for
3139 # details.) Therefore we use a specific rule in this case. This
3140 # applies to info files only (dvi and pdf files always have an
3141 # extension).
3142 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3144 # If the resulting file lie into a subdirectory,
3145 # make sure this directory will exist.
3146 my $dirstamp = require_build_directory_maybe ($dest);
3148 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3150 $output_rules .= file_contents ('texibuild',
3151 new Automake::Location,
3152 AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
3153 AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
3154 AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
3155 DEPS => "@deps",
3156 DEST_PREFIX => $dpfx,
3157 DEST_INFO_PREFIX => $dipfx,
3158 DEST_SUFFIX => $dsfx,
3159 DIRSTAMP => $dirstamp,
3160 GENERIC => $generic,
3161 GENERIC_INFO => $generic_info,
3162 INSRC => $insrc,
3163 MAKEINFOFLAGS => $makeinfoflags,
3164 SILENT => silent_flag(),
3165 SOURCE => ($generic
3166 ? '$<' : $source),
3167 SOURCE_INFO => ($generic_info
3168 ? '$<' : $source),
3169 SOURCE_REAL => $source,
3170 SOURCE_SUFFIX => $ssfx,
3171 TEXIQUIET => verbose_flag('texinfo'),
3172 TEXIDEVNULL => verbose_flag('texidevnull'),
3173 );
3174 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3175 }
3178 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3179 # handle_texinfo_helper ($info_texinfos)
3180 # --------------------------------------
3181 # Handle all Texinfo source; helper for handle_texinfo.
3182 sub handle_texinfo_helper ($)
3183 {
3184 my ($info_texinfos) = @_;
3185 my (@infobase, @info_deps_list, @texi_deps);
3186 my %versions;
3187 my $done = 0;
3188 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3190 # Build a regex matching user-cleaned files.
3191 my $d = var 'DISTCLEANFILES';
3192 my $c = var 'CLEANFILES';
3193 my @f = ();
3194 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3195 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3196 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3197 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3199 foreach my $texi
3200 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3201 {
3202 my $infobase = $texi;
3203 $infobase =~ s/\.(txi|texinfo|texi)$//;
3205 if ($infobase eq $texi)
3206 {
3207 # FIXME: report line number.
3208 err_am "texinfo file '$texi' has unrecognized extension";
3209 next;
3210 }
3212 push @infobase, $infobase;
3214 # If 'version.texi' is referenced by input file, then include
3215 # automatic versioning capability.
3216 my ($out_file, $vtexi, @clean_files) =
3217 scan_texinfo_file ("$relative_dir/$texi")
3218 or next;
3219 push (@mostly_cleans, @clean_files);
3221 # If the Texinfo source is in a subdirectory, create the
3222 # resulting info in this subdirectory. If it is in the current
3223 # directory, try hard to not prefix "./" because it breaks the
3224 # generic rules.
3225 my $outdir = dirname ($texi) . '/';
3226 $outdir = "" if $outdir eq './';
3227 $out_file = $outdir . $out_file;
3229 # Until Automake 1.6.3, .info files were built in the
3230 # source tree. This was an obstacle to the support of
3231 # non-distributed .info files, and non-distributed .texi
3232 # files.
3233 #
3234 # * Non-distributed .texi files is important in some packages
3235 # where .texi files are built at make time, probably using
3236 # other binaries built in the package itself, maybe using
3237 # tools or information found on the build host. Because
3238 # these files are not distributed they are always rebuilt
3239 # at make time; they should therefore not lie in the source
3240 # directory. One plan was to support this using
3241 # nodist_info_TEXINFOS or something similar. (Doing this
3242 # requires some sanity checks. For instance Automake should
3243 # not allow:
3244 # dist_info_TEXINFOS = foo.texi
3245 # nodist_foo_TEXINFOS = included.texi
3246 # because a distributed file should never depend on a
3247 # non-distributed file.)
3248 #
3249 # * If .texi files are not distributed, then .info files should
3250 # not be distributed either. There are also cases where one
3251 # wants to distribute .texi files, but does not want to
3252 # distribute the .info files. For instance the Texinfo package
3253 # distributes the tool used to build these files; it would
3254 # be a waste of space to distribute them. It's not clear
3255 # which syntax we should use to indicate that .info files should
3256 # not be distributed. Akim Demaille suggested that eventually
3257 # we switch to a new syntax:
3258 # | Maybe we should take some inspiration from what's already
3259 # | done in the rest of Automake. Maybe there is too much
3260 # | syntactic sugar here, and you want
3261 # | nodist_INFO = bar.info
3262 # | dist_bar_info_SOURCES = bar.texi
3263 # | bar_texi_DEPENDENCIES = foo.texi
3264 # | with a bit of magic to have bar.info represent the whole
3265 # | bar*info set. That's a lot more verbose that the current
3266 # | situation, but it is # not new, hence the user has less
3267 # | to learn.
3268 # |
3269 # | But there is still too much room for meaningless specs:
3270 # | nodist_INFO = bar.info
3271 # | dist_bar_info_SOURCES = bar.texi
3272 # | dist_PS = bar.ps something-written-by-hand.ps
3273 # | nodist_bar_ps_SOURCES = bar.texi
3274 # | bar_texi_DEPENDENCIES = foo.texi
3275 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3276 #
3277 # Back to the point, it should be clear that in order to support
3278 # non-distributed .info files, we need to build them in the
3279 # build tree, not in the source tree (non-distributed .texi
3280 # files are less of a problem, because we do not output build
3281 # rules for them). In Automake 1.7 .info build rules have been
3282 # largely cleaned up so that .info files get always build in the
3283 # build tree, even when distributed. The idea was that
3284 # (1) if during a VPATH build the .info file was found to be
3285 # absent or out-of-date (in the source tree or in the
3286 # build tree), Make would rebuild it in the build tree.
3287 # If an up-to-date source-tree of the .info file existed,
3288 # make would not rebuild it in the build tree.
3289 # (2) having two copies of .info files, one in the source tree
3290 # and one (newer) in the build tree is not a problem
3291 # because 'make dist' always pick files in the build tree
3292 # first.
3293 # However it turned out the be a bad idea for several reasons:
3294 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3295 # like GNU Make on point (1) above. These implementations
3296 # of Make would always rebuild .info files in the build
3297 # tree, even if such files were up to date in the source
3298 # tree. Consequently, it was impossible to perform a VPATH
3299 # build of a package containing Texinfo files using these
3300 # Make implementations.
3301 # (Refer to the Autoconf Manual, section "Limitation of
3302 # Make", paragraph "VPATH", item "target lookup", for
3303 # an account of the differences between these
3304 # implementations.)
3305 # * The GNU Coding Standards require these files to be built
3306 # in the source-tree (when they are distributed, that is).
3307 # * Keeping a fresher copy of distributed files in the
3308 # build tree can be annoying during development because
3309 # - if the files is kept under CVS, you really want it
3310 # to be updated in the source tree
3311 # - it is confusing that 'make distclean' does not erase
3312 # all files in the build tree.
3313 #
3314 # Consequently, starting with Automake 1.8, .info files are
3315 # built in the source tree again. Because we still plan to
3316 # support non-distributed .info files at some point, we
3317 # have a single variable ($INSRC) that controls whether
3318 # the current .info file must be built in the source tree
3319 # or in the build tree. Actually this variable is switched
3320 # off for .info files that appear to be cleaned; this is
3321 # for backward compatibility with package such as Texinfo,
3322 # which do things like
3323 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3324 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3325 # # Do not create info files for distribution.
3326 # dist-info:
3327 # in order not to distribute .info files.
3328 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3330 my $soutdir = '$(srcdir)/' . $outdir;
3331 $outdir = $soutdir if $insrc;
3333 # If user specified file_TEXINFOS, then use that as explicit
3334 # dependency list.
3335 @texi_deps = ();
3336 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3338 my $canonical = canonicalize ($infobase);
3339 if (var ($canonical . "_TEXINFOS"))
3340 {
3341 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3342 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3343 }
3345 my ($dirstamp, @cfiles) =
3346 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3347 push (@texi_cleans, @cfiles);
3349 push (@info_deps_list, $out_file);
3351 # If a vers*.texi file is needed, emit the rule.
3352 if ($vtexi)
3353 {
3354 err_am ("'$vtexi', included in '$texi', "
3355 . "also included in '$versions{$vtexi}'")
3356 if defined $versions{$vtexi};
3357 $versions{$vtexi} = $texi;
3359 # We number the stamp-vti files. This is doable since the
3360 # actual names don't matter much. We only number starting
3361 # with the second one, so that the common case looks nice.
3362 my $vti = ($done ? $done : 'vti');
3363 ++$done;
3365 # This is ugly, but it is our historical practice.
3366 if ($config_aux_dir_set_in_configure_ac)
3367 {
3368 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3369 'mdate-sh');
3370 }
3371 else
3372 {
3373 require_file_with_macro (TRUE, 'info_TEXINFOS',
3374 FOREIGN, 'mdate-sh');
3375 }
3377 my $conf_dir;
3378 if ($config_aux_dir_set_in_configure_ac)
3379 {
3380 $conf_dir = "$am_config_aux_dir/";
3381 }
3382 else
3383 {
3384 $conf_dir = '$(srcdir)/';
3385 }
3386 $output_rules .= file_contents ('texi-vers',
3387 new Automake::Location,
3388 TEXI => $texi,
3389 VTI => $vti,
3390 STAMPVTI => "${soutdir}stamp-$vti",
3391 VTEXI => "$soutdir$vtexi",
3392 MDDIR => $conf_dir,
3393 DIRSTAMP => $dirstamp);
3394 }
3395 }
3397 # Handle location of texinfo.tex.
3398 my $need_texi_file = 0;
3399 my $texinfodir;
3400 if (var ('TEXINFO_TEX'))
3401 {
3402 # The user defined TEXINFO_TEX so assume he knows what he is
3403 # doing.
3404 $texinfodir = ('$(srcdir)/'
3405 . dirname (variable_value ('TEXINFO_TEX')));
3406 }
3407 elsif (option 'cygnus')
3408 {
3409 $texinfodir = '$(top_srcdir)/../texinfo';
3410 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3411 }
3412 elsif ($config_aux_dir_set_in_configure_ac)
3413 {
3414 $texinfodir = $am_config_aux_dir;
3415 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3416 $need_texi_file = 2; # so that we require_conf_file later
3417 }
3418 else
3419 {
3420 $texinfodir = '$(srcdir)';
3421 $need_texi_file = 1;
3422 }
3423 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3425 push (@dist_targets, 'dist-info');
3427 if (! option 'no-installinfo')
3428 {
3429 # Make sure documentation is made and installed first. Use
3430 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3431 # get run twice during "make all".
3432 unshift (@all, '$(INFO_DEPS)');
3433 }
3435 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3436 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3437 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3438 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3440 # This next isn't strictly needed now -- the places that look here
3441 # could easily be changed to look in info_TEXINFOS. But this is
3442 # probably better, in case noinst_TEXINFOS is ever supported.
3443 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3445 # Do some error checking. Note that this file is not required
3446 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3447 # up above.
3448 if ($need_texi_file && ! option 'no-texinfo.tex')
3449 {
3450 if ($need_texi_file > 1)
3451 {
3452 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3453 'texinfo.tex');
3454 }
3455 else
3456 {
3457 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3458 'texinfo.tex');
3459 }
3460 }
3462 return (makefile_wrap ("", "\t ", @mostly_cleans),
3463 makefile_wrap ("", "\t ", @texi_cleans),
3464 makefile_wrap ("", "\t ", @maint_cleans));
3465 }
3468 # handle_texinfo ()
3469 # -----------------
3470 # Handle all Texinfo source.
3471 sub handle_texinfo ()
3472 {
3473 reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
3474 # FIXME: I think this is an obsolete future feature name.
3475 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3477 my $info_texinfos = var ('info_TEXINFOS');
3478 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3479 if ($info_texinfos)
3480 {
3481 define_verbose_texinfo;
3482 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3483 chomp $mostlyclean;
3484 chomp $clean;
3485 chomp $maintclean;
3486 }
3488 $output_rules .= file_contents ('texinfos',
3489 new Automake::Location,
3490 AM_V_DVIPS => verbose_flag('DVIPS'),
3491 MOSTLYCLEAN => $mostlyclean,
3492 TEXICLEAN => $clean,
3493 MAINTCLEAN => $maintclean,
3494 'LOCAL-TEXIS' => !!$info_texinfos,
3495 TEXIQUIET => verbose_flag('texinfo'));
3496 }
3499 # Handle any man pages.
3500 sub handle_man_pages
3501 {
3502 reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
3504 # Find all the sections in use. We do this by first looking for
3505 # "standard" sections, and then looking for any additional
3506 # sections used in man_MANS.
3507 my (%sections, %notrans_sections, %trans_sections,
3508 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3509 # We handle nodist_ for uniformity. man pages aren't distributed
3510 # by default so it isn't actually very important.
3511 foreach my $npfx ('', 'notrans_')
3512 {
3513 foreach my $pfx ('', 'dist_', 'nodist_')
3514 {
3515 # Add more sections as needed.
3516 foreach my $section ('0'..'9', 'n', 'l')
3517 {
3518 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3519 if (var ($varname))
3520 {
3521 $sections{$section} = 1;
3522 $varname = '$(' . $varname . ')';
3523 if ($npfx eq 'notrans_')
3524 {
3525 $notrans_sections{$section} = 1;
3526 $notrans_sect_vars{$varname} = 1;
3527 }
3528 else
3529 {
3530 $trans_sections{$section} = 1;
3531 $trans_sect_vars{$varname} = 1;
3532 }
3534 &push_dist_common ($varname)
3535 if $pfx eq 'dist_';
3536 }
3537 }
3539 my $varname = $npfx . $pfx . 'man_MANS';
3540 my $var = var ($varname);
3541 if ($var)
3542 {
3543 foreach ($var->value_as_list_recursive)
3544 {
3545 # A page like 'foo.1c' goes into man1dir.
3546 if (/\.([0-9a-z])([a-z]*)$/)
3547 {
3548 $sections{$1} = 1;
3549 if ($npfx eq 'notrans_')
3550 {
3551 $notrans_sections{$1} = 1;
3552 }
3553 else
3554 {
3555 $trans_sections{$1} = 1;
3556 }
3557 }
3558 }
3560 $varname = '$(' . $varname . ')';
3561 if ($npfx eq 'notrans_')
3562 {
3563 $notrans_vars{$varname} = 1;
3564 }
3565 else
3566 {
3567 $trans_vars{$varname} = 1;
3568 }
3569 &push_dist_common ($varname)
3570 if $pfx eq 'dist_';
3571 }
3572 }
3573 }
3575 return unless %sections;
3577 my @unsorted_deps;
3579 # Build section independent variables.
3580 my $have_notrans = %notrans_vars;
3581 my @notrans_list = sort keys %notrans_vars;
3582 my $have_trans = %trans_vars;
3583 my @trans_list = sort keys %trans_vars;
3585 # Now for each section, generate an install and uninstall rule.
3586 # Sort sections so output is deterministic.
3587 foreach my $section (sort keys %sections)
3588 {
3589 # Build section dependent variables.
3590 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3591 my $trans_mans = $have_trans || exists $trans_sections{$section};
3592 my (%notrans_this_sect, %trans_this_sect);
3593 my $expr = 'man' . $section . '_MANS';
3594 foreach my $varname (keys %notrans_sect_vars)
3595 {
3596 if ($varname =~ /$expr/)
3597 {
3598 $notrans_this_sect{$varname} = 1;
3599 }
3600 }
3601 foreach my $varname (keys %trans_sect_vars)
3602 {
3603 if ($varname =~ /$expr/)
3604 {
3605 $trans_this_sect{$varname} = 1;
3606 }
3607 }
3608 my @notrans_sect_list = sort keys %notrans_this_sect;
3609 my @trans_sect_list = sort keys %trans_this_sect;
3610 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3611 keys %notrans_this_sect, keys %trans_this_sect);
3612 my @deps = sort @unsorted_deps;
3613 $output_rules .= &file_contents ('mans',
3614 new Automake::Location,
3615 SECTION => $section,
3616 DEPS => "@deps",
3617 NOTRANS_MANS => $notrans_mans,
3618 NOTRANS_SECT_LIST => "@notrans_sect_list",
3619 HAVE_NOTRANS => $have_notrans,
3620 NOTRANS_LIST => "@notrans_list",
3621 TRANS_MANS => $trans_mans,
3622 TRANS_SECT_LIST => "@trans_sect_list",
3623 HAVE_TRANS => $have_trans,
3624 TRANS_LIST => "@trans_list");
3625 }
3627 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3628 keys %notrans_sect_vars, keys %trans_sect_vars);
3629 my @mans = sort @unsorted_deps;
3630 $output_vars .= file_contents ('mans-vars',
3631 new Automake::Location,
3632 MANS => "@mans");
3634 push (@all, '$(MANS)')
3635 unless option 'no-installman';
3636 }
3638 # Handle DATA variables.
3639 sub handle_data
3640 {
3641 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3642 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3643 'ps', 'sysconf', 'sharedstate', 'localstate',
3644 'pkgdata', 'lisp', 'noinst', 'check');
3645 }
3647 # Handle TAGS.
3648 sub handle_tags
3649 {
3650 my @tag_deps = ();
3651 my @ctag_deps = ();
3652 my @cscope_deps = ();
3653 if (var ('SUBDIRS'))
3654 {
3655 $output_rules .= ("tags-recursive:\n"
3656 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3657 # Never fail here if a subdir fails; it
3658 # isn't important.
3659 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3660 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3661 . "\tdone\n");
3662 push (@tag_deps, 'tags-recursive');
3663 &depend ('.PHONY', 'tags-recursive');
3664 &depend ('.MAKE', 'tags-recursive');
3666 $output_rules .= ("ctags-recursive:\n"
3667 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3668 # Never fail here if a subdir fails; it
3669 # isn't important.
3670 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3671 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3672 . "\tdone\n");
3673 push (@ctag_deps, 'ctags-recursive');
3674 &depend ('.PHONY', 'ctags-recursive');
3675 &depend ('.MAKE', 'ctags-recursive');
3677 $output_rules .= ("cscopelist-recursive:\n"
3678 . "\tlist='\$(SUBDIRS)'; for subdir in \$\$list; do \\\n"
3679 # Never fail here if a subdir fails; it
3680 # isn't important.
3681 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3682 . " && \$(MAKE) \$(AM_MAKEFLAGS) cscopelist); \\\n"
3683 . "\tdone\n");
3684 push (@cscope_deps, 'cscopelist-recursive');
3685 &depend ('.PHONY', 'cscopelist-recursive');
3686 &depend ('.MAKE', 'cscopelist-recursive');
3687 }
3689 if (&saw_sources_p (1)
3690 || var ('ETAGS_ARGS')
3691 || @tag_deps)
3692 {
3693 my @config;
3694 foreach my $spec (@config_headers)
3695 {
3696 my ($out, @ins) = split_config_file_spec ($spec);
3697 foreach my $in (@ins)
3698 {
3699 # If the config header source is in this directory,
3700 # require it.
3701 push @config, basename ($in)
3702 if $relative_dir eq dirname ($in);
3703 }
3704 }
3705 $output_rules .= &file_contents ('tags',
3706 new Automake::Location,
3707 CONFIG => "@config",
3708 TAGSDIRS => "@tag_deps",
3709 CTAGSDIRS => "@ctag_deps",
3710 CSCOPEDIRS => "@cscope_deps");
3712 set_seen 'TAGS_DEPENDENCIES';
3713 }
3714 elsif (reject_var ('TAGS_DEPENDENCIES',
3715 "it doesn't make sense to define 'TAGS_DEPENDENCIES'"
3716 . " without\nsources or 'ETAGS_ARGS'"))
3717 {
3718 }
3719 else
3720 {
3721 # Every Makefile must define some sort of TAGS rule.
3722 # Otherwise, it would be possible for a top-level "make TAGS"
3723 # to fail because some subdirectory failed.
3724 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3725 # Ditto ctags and cscope.
3726 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3727 $output_rules .= "cscope cscopelist:\n\n";
3728 }
3729 }
3732 # user_phony_rule ($NAME)
3733 # -----------------------
3734 # Return false if rule $NAME does not exist. Otherwise,
3735 # declare it as phony, complete its definition (in case it is
3736 # conditional), and return its Automake::Rule instance.
3737 sub user_phony_rule ($)
3738 {
3739 my ($name) = @_;
3740 my $rule = rule $name;
3741 if ($rule)
3742 {
3743 depend ('.PHONY', $name);
3744 # Define $NAME in all condition where it is not already defined,
3745 # so that it is always OK to depend on $NAME.
3746 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3747 {
3748 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3749 $c, INTERNAL);
3750 $output_rules .= $c->subst_string . "$name:\n";
3751 }
3752 }
3753 return $rule;
3754 }
3757 # $BOOLEAN
3758 # &for_dist_common ($A, $B)
3759 # -------------------------
3760 # Subroutine for &handle_dist: sort files to dist.
3761 #
3762 # We put README first because it then becomes easier to make a
3763 # Usenet-compliant shar file (in these, README must be first).
3764 #
3765 # FIXME: do more ordering of files here.
3766 sub for_dist_common
3767 {
3768 return 0
3769 if $a eq $b;
3770 return -1
3771 if $a eq 'README';
3772 return 1
3773 if $b eq 'README';
3774 return $a cmp $b;
3775 }
3777 # handle_dist
3778 # -----------
3779 # Handle 'dist' target.
3780 sub handle_dist ()
3781 {
3782 # Substitutions for distdir.am
3783 my %transform;
3785 # Define DIST_SUBDIRS. This must always be done, regardless of the
3786 # no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
3787 my $subdirs = var ('SUBDIRS');
3788 if ($subdirs)
3789 {
3790 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3791 # to all possible directories, and use it. If DIST_SUBDIRS is
3792 # defined, just use it.
3794 # Note that we check DIST_SUBDIRS first on purpose, so that
3795 # we don't call has_conditional_contents for now reason.
3796 # (In the past one project used so many conditional subdirectories
3797 # that calling has_conditional_contents on SUBDIRS caused
3798 # automake to grow to 150Mb -- this should not happen with
3799 # the current implementation of has_conditional_contents,
3800 # but it's more efficient to avoid the call anyway.)
3801 if (var ('DIST_SUBDIRS'))
3802 {
3803 }
3804 elsif ($subdirs->has_conditional_contents)
3805 {
3806 define_pretty_variable
3807 ('DIST_SUBDIRS', TRUE, INTERNAL,
3808 uniq ($subdirs->value_as_list_recursive));
3809 }
3810 else
3811 {
3812 # We always define this because that is what 'distclean'
3813 # wants.
3814 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3815 '$(SUBDIRS)');
3816 }
3817 }
3819 # The remaining definitions are only required when a dist target is used.
3820 return if option 'no-dist';
3822 # At least one of the archive formats must be enabled.
3823 if ($relative_dir eq '.')
3824 {
3825 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3826 $archive_defined ||=
3827 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3828 error (option 'no-dist-gzip',
3829 "no-dist-gzip specified but no dist-* specified,\n"
3830 . "at least one archive format must be enabled")
3831 unless $archive_defined;
3832 }
3834 # Look for common files that should be included in distribution.
3835 # If the aux dir is set, and it does not have a Makefile.am, then
3836 # we check for these files there as well.
3837 my $check_aux = 0;
3838 if ($relative_dir eq '.'
3839 && $config_aux_dir_set_in_configure_ac)
3840 {
3841 if (! &is_make_dir ($config_aux_dir))
3842 {
3843 $check_aux = 1;
3844 }
3845 }
3846 foreach my $cfile (@common_files)
3847 {
3848 if (dir_has_case_matching_file ($relative_dir, $cfile)
3849 # The file might be absent, but if it can be built it's ok.
3850 || rule $cfile)
3851 {
3852 &push_dist_common ($cfile);
3853 }
3855 # Don't use 'elsif' here because a file might meaningfully
3856 # appear in both directories.
3857 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3858 {
3859 &push_dist_common ("$config_aux_dir/$cfile")
3860 }
3861 }
3863 # We might copy elements from $configure_dist_common to
3864 # %dist_common if we think we need to. If the file appears in our
3865 # directory, we would have discovered it already, so we don't
3866 # check that. But if the file is in a subdir without a Makefile,
3867 # we want to distribute it here if we are doing '.'. Ugly!
3868 # Also, in some corner cases, it's possible that the following code
3869 # will cause the same file to appear in the $(DIST_COMMON) variables
3870 # of two distinct Makefiles; but this is not a problem, since the
3871 # 'distdir' target in 'lib/am/distdir.am' can deal with the same
3872 # file being distributed multiple times.
3873 # See also automake bug#9651.
3874 if ($relative_dir eq '.')
3875 {
3876 foreach my $file (split (' ' , $configure_dist_common))
3877 {
3878 my $dir = dirname ($file);
3879 push_dist_common ($file)
3880 if ($dir eq '.' || ! is_make_dir ($dir));
3881 }
3882 }
3884 # Files to distributed. Don't use ->value_as_list_recursive
3885 # as it recursively expands '$(dist_pkgdata_DATA)' etc.
3886 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3887 @dist_common = uniq (sort for_dist_common (@dist_common));
3888 variable_delete 'DIST_COMMON';
3889 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3891 # Now that we've processed DIST_COMMON, disallow further attempts
3892 # to set it.
3893 $handle_dist_run = 1;
3895 # Scan EXTRA_DIST to see if we need to distribute anything from a
3896 # subdir. If so, add it to the list. I didn't want to do this
3897 # originally, but there were so many requests that I finally
3898 # relented.
3899 my $extra_dist = var ('EXTRA_DIST');
3901 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3902 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3904 # If the target 'dist-hook' exists, make sure it is run. This
3905 # allows users to do random weird things to the distribution
3906 # before it is packaged up.
3907 push (@dist_targets, 'dist-hook')
3908 if user_phony_rule 'dist-hook';
3909 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3911 my $flm = option ('filename-length-max');
3912 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3914 $output_rules .= &file_contents ('distdir',
3915 new Automake::Location,
3916 %transform,
3917 FILENAME_FILTER => $filename_filter);
3918 }
3921 # check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
3922 # -------------------------------------------------------
3923 # Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
3924 # name. Use $WHERE as a location in the diagnostic, if any.
3925 sub check_directory ($$;$)
3926 {
3927 my ($dir, $where, $reldir) = @_;
3928 $reldir = '.' unless defined $reldir;
3930 error $where, "required directory $reldir/$dir does not exist"
3931 unless -d "$reldir/$dir";
3933 # If an 'obj/' directory exists, BSD make will enter it before
3934 # reading 'Makefile'. Hence the 'Makefile' in the current directory
3935 # will not be read.
3936 #
3937 # % cat Makefile
3938 # all:
3939 # echo Hello
3940 # % cat obj/Makefile
3941 # all:
3942 # echo World
3943 # % make # GNU make
3944 # echo Hello
3945 # Hello
3946 # % pmake # BSD make
3947 # echo World
3948 # World
3949 msg ('portability', $where,
3950 "naming a subdirectory 'obj' causes troubles with BSD make")
3951 if $dir eq 'obj';
3953 # 'aux' is probably the most important of the following forbidden name,
3954 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3955 msg ('portability', $where,
3956 "name '$dir' is reserved on W32 and DOS platforms")
3957 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3958 }
3960 # check_directories_in_var ($VARIABLE)
3961 # ------------------------------------
3962 # Recursively check all items in variables $VARIABLE as directories
3963 sub check_directories_in_var ($)
3964 {
3965 my ($var) = @_;
3966 $var->traverse_recursively
3967 (sub
3968 {
3969 my ($var, $val, $cond, $full_cond) = @_;
3970 check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
3971 return ();
3972 },
3973 undef,
3974 skip_ac_subst => 1);
3975 }
3977 # &handle_subdirs ()
3978 # ------------------
3979 # Handle subdirectories.
3980 sub handle_subdirs ()
3981 {
3982 my $subdirs = var ('SUBDIRS');
3983 return
3984 unless $subdirs;
3986 check_directories_in_var $subdirs;
3988 my $dsubdirs = var ('DIST_SUBDIRS');
3989 check_directories_in_var $dsubdirs
3990 if $dsubdirs;
3992 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3993 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3994 }
3997 # ($REGEN, @DEPENDENCIES)
3998 # &scan_aclocal_m4
3999 # ----------------
4000 # If aclocal.m4 creation is automated, return the list of its dependencies.
4001 sub scan_aclocal_m4 ()
4002 {
4003 my $regen_aclocal = 0;
4005 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4006 set_seen 'CONFIGURE_DEPENDENCIES';
4008 if (-f 'aclocal.m4')
4009 {
4010 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4012 my $aclocal = new Automake::XFile "< aclocal.m4";
4013 my $line = $aclocal->getline;
4014 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4015 }
4017 my @ac_deps = ();
4019 if (set_seen ('ACLOCAL_M4_SOURCES'))
4020 {
4021 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4022 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4023 "'ACLOCAL_M4_SOURCES' is obsolete.\n"
4024 . "It should be safe to simply remove it");
4025 }
4027 # Note that it might be possible that aclocal.m4 doesn't exist but
4028 # should be auto-generated. This case probably isn't very
4029 # important.
4031 return ($regen_aclocal, @ac_deps);
4032 }
4035 # Helper function for substitute_ac_subst_variables.
4036 sub substitute_ac_subst_variables_worker($)
4037 {
4038 my ($token) = @_;
4039 return "\@$token\@" if var $token;
4040 return "\${$token\}";
4041 }
4043 # substitute_ac_subst_variables ($TEXT)
4044 # -------------------------------------
4045 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4046 # variable.
4047 sub substitute_ac_subst_variables ($)
4048 {
4049 my ($text) = @_;
4050 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4051 return $text;
4052 }
4054 # @DEPENDENCIES
4055 # &prepend_srcdir (@INPUTS)
4056 # -------------------------
4057 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4058 # if an input file has a directory part the same as the current
4059 # directory, then the directory part is simply replaced by $(srcdir).
4060 # But if the directory part is different, then $(top_srcdir) is
4061 # prepended.
4062 sub prepend_srcdir (@)
4063 {
4064 my (@inputs) = @_;
4065 my @newinputs;
4067 foreach my $single (@inputs)
4068 {
4069 if (dirname ($single) eq $relative_dir)
4070 {
4071 push (@newinputs, '$(srcdir)/' . basename ($single));
4072 }
4073 else
4074 {
4075 push (@newinputs, '$(top_srcdir)/' . $single);
4076 }
4077 }
4078 return @newinputs;
4079 }
4081 # @DEPENDENCIES
4082 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4083 # ---------------------------------------------------
4084 # Compute a list of dependencies appropriate for the rebuild
4085 # rule of
4086 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4087 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4088 sub rewrite_inputs_into_dependencies ($@)
4089 {
4090 my ($file, @inputs) = @_;
4091 my @res = ();
4093 for my $i (@inputs)
4094 {
4095 # We cannot create dependencies on shell variables.
4096 next if (substitute_ac_subst_variables $i) =~ /\$/;
4098 if (exists $ac_config_files_location{$i} && $i ne $file)
4099 {
4100 my $di = dirname $i;
4101 if ($di eq $relative_dir)
4102 {
4103 $i = basename $i;
4104 }
4105 # In the top-level Makefile we do not use $(top_builddir), because
4106 # we are already there, and since the targets are built without
4107 # a $(top_builddir), it helps BSD Make to match them with
4108 # dependencies.
4109 elsif ($relative_dir ne '.')
4110 {
4111 $i = '$(top_builddir)/' . $i;
4112 }
4113 }
4114 else
4115 {
4116 msg ('error', $ac_config_files_location{$file},
4117 "required file '$i' not found")
4118 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4119 ($i) = prepend_srcdir ($i);
4120 push_dist_common ($i);
4121 }
4122 push @res, $i;
4123 }
4124 return @res;
4125 }
4129 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4130 # ------------------------------------------------------------------
4131 # Handle remaking and configure stuff.
4132 # We need the name of the input file, to do proper remaking rules.
4133 sub handle_configure ($$$@)
4134 {
4135 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4137 prog_error 'empty @inputs'
4138 unless @inputs;
4140 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4141 $makefile_in);
4142 my $rel_makefile = basename $makefile;
4144 my $colon_infile = ':' . join (':', @inputs);
4145 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4146 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4147 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4148 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4149 @configure_deps, @aclocal_m4_deps,
4150 '$(top_srcdir)/' . $configure_ac);
4151 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4152 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4153 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4154 @configuredeps);
4156 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4157 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4159 $output_rules .= file_contents
4160 ('configure',
4161 new Automake::Location,
4162 MAKEFILE => $rel_makefile,
4163 'MAKEFILE-DEPS' => "@rewritten",
4164 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4165 'MAKEFILE-IN' => $rel_makefile_in,
4166 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4167 'MAKEFILE-IN-DEPS' => "@include_stack",
4168 'MAKEFILE-AM' => $rel_makefile_am,
4169 'AUTOMAKE-OPTIONS' => $automake_options,
4170 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4171 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4172 VERBOSE => verbose_flag ('GEN'));
4174 if ($relative_dir eq '.')
4175 {
4176 &push_dist_common ('acconfig.h')
4177 if -f 'acconfig.h';
4178 }
4180 # If we have a configure header, require it.
4181 my $hdr_index = 0;
4182 my @distclean_config;
4183 foreach my $spec (@config_headers)
4184 {
4185 $hdr_index += 1;
4186 # $CONFIG_H_PATH: config.h from top level.
4187 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4188 my $config_h_dir = dirname ($config_h_path);
4190 # If the header is in the current directory we want to build
4191 # the header here. Otherwise, if we're at the topmost
4192 # directory and the header's directory doesn't have a
4193 # Makefile, then we also want to build the header.
4194 if ($relative_dir eq $config_h_dir
4195 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4196 {
4197 my ($cn_sans_dir, $stamp_dir);
4198 if ($relative_dir eq $config_h_dir)
4199 {
4200 $cn_sans_dir = basename ($config_h_path);
4201 $stamp_dir = '';
4202 }
4203 else
4204 {
4205 $cn_sans_dir = $config_h_path;
4206 if ($config_h_dir eq '.')
4207 {
4208 $stamp_dir = '';
4209 }
4210 else
4211 {
4212 $stamp_dir = $config_h_dir . '/';
4213 }
4214 }
4216 # This will also distribute all inputs.
4217 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4219 # Cannot define rebuild rules for filenames with shell variables.
4220 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4222 # Header defined in this directory.
4223 my @files;
4224 if (-f $config_h_path . '.top')
4225 {
4226 push (@files, "$cn_sans_dir.top");
4227 }
4228 if (-f $config_h_path . '.bot')
4229 {
4230 push (@files, "$cn_sans_dir.bot");
4231 }
4233 push_dist_common (@files);
4235 # For now, acconfig.h can only appear in the top srcdir.
4236 if (-f 'acconfig.h')
4237 {
4238 push (@files, '$(top_srcdir)/acconfig.h');
4239 }
4241 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4242 $output_rules .=
4243 file_contents ('remake-hdr',
4244 new Automake::Location,
4245 FILES => "@files",
4246 CONFIG_H => $cn_sans_dir,
4247 CONFIG_HIN => $ins[0],
4248 CONFIG_H_DEPS => "@ins",
4249 CONFIG_H_PATH => $config_h_path,
4250 STAMP => "$stamp");
4252 push @distclean_config, $cn_sans_dir, $stamp;
4253 }
4254 }
4256 $output_rules .= file_contents ('clean-hdr',
4257 new Automake::Location,
4258 FILES => "@distclean_config")
4259 if @distclean_config;
4261 # Distribute and define mkinstalldirs only if it is already present
4262 # in the package, for backward compatibility (some people may still
4263 # use $(mkinstalldirs)).
4264 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4265 if (-f $mkidpath)
4266 {
4267 # Use require_file so that any existing script gets updated
4268 # by --force-missing.
4269 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4270 define_variable ('mkinstalldirs',
4271 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4272 }
4273 else
4274 {
4275 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4276 # at least one argument, and $(mkinstalldirs) used to work
4277 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4278 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4279 }
4281 reject_var ('CONFIG_HEADER',
4282 "'CONFIG_HEADER' is an anachronism; now determined "
4283 . "automatically\nfrom '$configure_ac'");
4285 my @config_h;
4286 foreach my $spec (@config_headers)
4287 {
4288 my ($out, @ins) = split_config_file_spec ($spec);
4289 # Generate CONFIG_HEADER define.
4290 if ($relative_dir eq dirname ($out))
4291 {
4292 push @config_h, basename ($out);
4293 }
4294 else
4295 {
4296 push @config_h, "\$(top_builddir)/$out";
4297 }
4298 }
4299 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4300 if @config_h;
4302 # Now look for other files in this directory which must be remade
4303 # by config.status, and generate rules for them.
4304 my @actual_other_files = ();
4305 # These get cleaned only in a VPATH build.
4306 my @actual_other_vpath_files = ();
4307 foreach my $lfile (@other_input_files)
4308 {
4309 my $file;
4310 my @inputs;
4311 if ($lfile =~ /^([^:]*):(.*)$/)
4312 {
4313 # This is the ":" syntax of AC_OUTPUT.
4314 $file = $1;
4315 @inputs = split (':', $2);
4316 }
4317 else
4318 {
4319 # Normal usage.
4320 $file = $lfile;
4321 @inputs = $file . '.in';
4322 }
4324 # Automake files should not be stored in here, but in %MAKE_LIST.
4325 prog_error ("$lfile in \@other_input_files\n"
4326 . "\@other_input_files = (@other_input_files)")
4327 if -f $file . '.am';
4329 my $local = basename ($file);
4331 # We skip files that aren't in this directory. However, if
4332 # the file's directory does not have a Makefile, and we are
4333 # currently doing '.', then we create a rule to rebuild the
4334 # file in the subdir.
4335 my $fd = dirname ($file);
4336 if ($fd ne $relative_dir)
4337 {
4338 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4339 {
4340 $local = $file;
4341 }
4342 else
4343 {
4344 next;
4345 }
4346 }
4348 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4350 # Cannot output rules for shell variables.
4351 next if (substitute_ac_subst_variables $local) =~ /\$/;
4353 my $condstr = '';
4354 my $cond = $ac_config_files_condition{$lfile};
4355 if (defined $cond)
4356 {
4357 $condstr = $cond->subst_string;
4358 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4359 $ac_config_files_location{$file});
4360 }
4361 $output_rules .= ($condstr . $local . ': '
4362 . '$(top_builddir)/config.status '
4363 . "@rewritten_inputs\n"
4364 . $condstr . "\t"
4365 . 'cd $(top_builddir) && '
4366 . '$(SHELL) ./config.status '
4367 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4368 . '$@'
4369 . "\n");
4370 push (@actual_other_files, $local);
4371 }
4373 # For links we should clean destinations and distribute sources.
4374 foreach my $spec (@config_links)
4375 {
4376 my ($link, $file) = split /:/, $spec;
4377 # Some people do AC_CONFIG_LINKS($computed). We only handle
4378 # the DEST:SRC form.
4379 next unless $file;
4380 my $where = $ac_config_files_location{$link};
4382 # Skip destinations that contain shell variables.
4383 if ((substitute_ac_subst_variables $link) !~ /\$/)
4384 {
4385 # We skip links that aren't in this directory. However, if
4386 # the link's directory does not have a Makefile, and we are
4387 # currently doing '.', then we add the link to CONFIG_CLEAN_FILES
4388 # in '.'s Makefile.in.
4389 my $local = basename ($link);
4390 my $fd = dirname ($link);
4391 if ($fd ne $relative_dir)
4392 {
4393 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4394 {
4395 $local = $link;
4396 }
4397 else
4398 {
4399 $local = undef;
4400 }
4401 }
4402 if ($file ne $link)
4403 {
4404 push @actual_other_files, $local if $local;
4405 }
4406 else
4407 {
4408 push @actual_other_vpath_files, $local if $local;
4409 }
4410 }
4412 # Do not process sources that contain shell variables.
4413 if ((substitute_ac_subst_variables $file) !~ /\$/)
4414 {
4415 my $fd = dirname ($file);
4417 # We distribute files that are in this directory.
4418 # At the top-level ('.') we also distribute files whose
4419 # directory does not have a Makefile.
4420 if (($fd eq $relative_dir)
4421 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4422 {
4423 # The following will distribute $file as a side-effect when
4424 # it is appropriate (i.e., when $file is not already an output).
4425 # We do not need the result, just the side-effect.
4426 rewrite_inputs_into_dependencies ($link, $file);
4427 }
4428 }
4429 }
4431 # These files get removed by "make distclean".
4432 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4433 @actual_other_files);
4434 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4435 @actual_other_vpath_files);
4436 }
4438 # Handle C headers.
4439 sub handle_headers
4440 {
4441 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4442 'oldinclude', 'pkginclude',
4443 'noinst', 'check');
4444 foreach (@r)
4445 {
4446 next unless $_->[1] =~ /\..*$/;
4447 &saw_extension ($&);
4448 }
4449 }
4451 sub handle_gettext
4452 {
4453 return if ! $seen_gettext || $relative_dir ne '.';
4455 my $subdirs = var 'SUBDIRS';
4457 if (! $subdirs)
4458 {
4459 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4460 return;
4461 }
4463 # Perform some sanity checks to help users get the right setup.
4464 # We disable these tests when po/ doesn't exist in order not to disallow
4465 # unusual gettext setups.
4466 #
4467 # Bruno Haible:
4468 # | The idea is:
4469 # |
4470 # | 1) If a package doesn't have a directory po/ at top level, it
4471 # | will likely have multiple po/ directories in subpackages.
4472 # |
4473 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4474 # | is used without 'external'. It is also useful to warn for the
4475 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4476 # | warnings apply only to the usual layout of packages, therefore
4477 # | they should both be disabled if no po/ directory is found at
4478 # | top level.
4480 if (-d 'po')
4481 {
4482 my @subdirs = $subdirs->value_as_list_recursive;
4484 msg_var ('syntax', $subdirs,
4485 "AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
4486 if ! grep ($_ eq 'po', @subdirs);
4488 # intl/ is not required when AM_GNU_GETTEXT is called with the
4489 # 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4490 msg_var ('syntax', $subdirs,
4491 "AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
4492 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4493 && ! grep ($_ eq 'intl', @subdirs));
4495 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4496 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4497 msg_var ('syntax', $subdirs,
4498 "'intl' should not be in SUBDIRS when "
4499 . "AM_GNU_GETTEXT([external]) is used")
4500 if ($seen_gettext_external && ! $seen_gettext_intl
4501 && grep ($_ eq 'intl', @subdirs));
4502 }
4504 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4505 }
4507 # Handle footer elements.
4508 sub handle_footer
4509 {
4510 reject_rule ('.SUFFIXES',
4511 "use variable 'SUFFIXES', not target '.SUFFIXES'");
4513 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4514 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4515 # anything else, by sticking it right after the default: target.
4516 $output_header .= ".SUFFIXES:\n";
4517 my $suffixes = var 'SUFFIXES';
4518 my @suffixes = Automake::Rule::suffixes;
4519 if (@suffixes || $suffixes)
4520 {
4521 # Make sure SUFFIXES has unique elements. Sort them to ensure
4522 # the output remains consistent. However, $(SUFFIXES) is
4523 # always at the start of the list, unsorted. This is done
4524 # because make will choose rules depending on the ordering of
4525 # suffixes, and this lets the user have some control. Push
4526 # actual suffixes, and not $(SUFFIXES). Some versions of make
4527 # do not like variable substitutions on the .SUFFIXES line.
4528 my @user_suffixes = ($suffixes
4529 ? $suffixes->value_as_list_recursive : ());
4531 my %suffixes = map { $_ => 1 } @suffixes;
4532 delete @suffixes{@user_suffixes};
4534 $output_header .= (".SUFFIXES: "
4535 . join (' ', @user_suffixes, sort keys %suffixes)
4536 . "\n");
4537 }
4539 $output_trailer .= file_contents ('footer', new Automake::Location);
4540 }
4543 # Generate 'make install' rules.
4544 sub handle_install ()
4545 {
4546 $output_rules .= &file_contents
4547 ('install',
4548 new Automake::Location,
4549 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4550 ? (" \$(BUILT_SOURCES)\n"
4551 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4552 : ''),
4553 'installdirs-local' => (user_phony_rule 'installdirs-local'
4554 ? ' installdirs-local' : ''),
4555 am__installdirs => variable_value ('am__installdirs') || '');
4556 }
4559 # Deal with all and all-am.
4560 sub handle_all ($)
4561 {
4562 my ($makefile) = @_;
4564 # Output 'all-am'.
4566 # Put this at the beginning for the sake of non-GNU makes. This
4567 # is still wrong if these makes can run parallel jobs. But it is
4568 # right enough.
4569 unshift (@all, basename ($makefile));
4571 foreach my $spec (@config_headers)
4572 {
4573 my ($out, @ins) = split_config_file_spec ($spec);
4574 push (@all, basename ($out))
4575 if dirname ($out) eq $relative_dir;
4576 }
4578 # Install 'all' hooks.
4579 push (@all, "all-local")
4580 if user_phony_rule "all-local";
4582 &pretty_print_rule ("all-am:", "\t\t", @all);
4583 &depend ('.PHONY', 'all-am', 'all');
4586 # Output 'all'.
4588 my @local_headers = ();
4589 push @local_headers, '$(BUILT_SOURCES)'
4590 if var ('BUILT_SOURCES');
4591 foreach my $spec (@config_headers)
4592 {
4593 my ($out, @ins) = split_config_file_spec ($spec);
4594 push @local_headers, basename ($out)
4595 if dirname ($out) eq $relative_dir;
4596 }
4598 if (@local_headers)
4599 {
4600 # We need to make sure config.h is built before we recurse.
4601 # We also want to make sure that built sources are built
4602 # before any ordinary 'all' targets are run. We can't do this
4603 # by changing the order of dependencies to the "all" because
4604 # that breaks when using parallel makes. Instead we handle
4605 # things explicitly.
4606 $output_all .= ("all: @local_headers"
4607 . "\n\t"
4608 . '$(MAKE) $(AM_MAKEFLAGS) '
4609 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4610 . "\n\n");
4611 depend ('.MAKE', 'all');
4612 }
4613 else
4614 {
4615 $output_all .= "all: " . (var ('SUBDIRS')
4616 ? 'all-recursive' : 'all-am') . "\n\n";
4617 }
4618 }
4621 # &do_check_merge_target ()
4622 # -------------------------
4623 # Handle check merge target specially.
4624 sub do_check_merge_target ()
4625 {
4626 # Include user-defined local form of target.
4627 push @check_tests, 'check-local'
4628 if user_phony_rule 'check-local';
4630 # In --cygnus mode, check doesn't depend on all.
4631 if (option 'cygnus')
4632 {
4633 # Just run the local check rules.
4634 pretty_print_rule ('check-am:', "\t\t", @check);
4635 }
4636 else
4637 {
4638 # The check target must depend on the local equivalent of
4639 # 'all', to ensure all the primary targets are built. Then it
4640 # must build the local check rules.
4641 $output_rules .= "check-am: all-am\n";
4642 if (@check)
4643 {
4644 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4645 @check);
4646 depend ('.MAKE', 'check-am');
4647 }
4648 }
4649 if (@check_tests)
4650 {
4651 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4652 @check_tests);
4653 depend ('.MAKE', 'check-am');
4654 }
4656 depend '.PHONY', 'check', 'check-am';
4657 # Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
4658 $output_rules .= ("check: "
4659 . (var ('BUILT_SOURCES')
4660 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4661 : '')
4662 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4663 . "\n");
4664 depend ('.MAKE', 'check')
4665 if var ('BUILT_SOURCES');
4666 }
4668 # handle_clean ($MAKEFILE)
4669 # ------------------------
4670 # Handle all 'clean' targets.
4671 sub handle_clean ($)
4672 {
4673 my ($makefile) = @_;
4675 # Clean the files listed in user variables if they exist.
4676 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4677 if var ('MOSTLYCLEANFILES');
4678 $clean_files{'$(CLEANFILES)'} = CLEAN
4679 if var ('CLEANFILES');
4680 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4681 if var ('DISTCLEANFILES');
4682 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4683 if var ('MAINTAINERCLEANFILES');
4685 # Built sources are automatically removed by maintainer-clean.
4686 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4687 if var ('BUILT_SOURCES');
4689 # Compute a list of "rm"s to run for each target.
4690 my %rms = (MOSTLY_CLEAN, [],
4691 CLEAN, [],
4692 DIST_CLEAN, [],
4693 MAINTAINER_CLEAN, []);
4695 foreach my $file (keys %clean_files)
4696 {
4697 my $when = $clean_files{$file};
4698 prog_error 'invalid entry in %clean_files'
4699 unless exists $rms{$when};
4701 my $rm = "rm -f $file";
4702 # If file is a variable, make sure when don't call 'rm -f' without args.
4703 $rm ="test -z \"$file\" || $rm"
4704 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4706 push @{$rms{$when}}, "\t-$rm\n";
4707 }
4709 $output_rules .= &file_contents
4710 ('clean',
4711 new Automake::Location,
4712 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4713 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4714 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4715 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4716 MAKEFILE => basename $makefile,
4717 );
4718 }
4721 # &target_cmp ($A, $B)
4722 # --------------------
4723 # Subroutine for &handle_factored_dependencies to let '.PHONY' and
4724 # other '.TARGETS' be last.
4725 sub target_cmp
4726 {
4727 return 0 if $a eq $b;
4729 my $a1 = substr ($a, 0, 1);
4730 my $b1 = substr ($b, 0, 1);
4731 if ($a1 ne $b1)
4732 {
4733 return -1 if $b1 eq '.';
4734 return 1 if $a1 eq '.';
4735 }
4736 return $a cmp $b;
4737 }
4740 # &handle_factored_dependencies ()
4741 # --------------------------------
4742 # Handle everything related to gathered targets.
4743 sub handle_factored_dependencies
4744 {
4745 # Reject bad hooks.
4746 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4747 'uninstall-exec-local', 'uninstall-exec-hook',
4748 'uninstall-dvi-local',
4749 'uninstall-html-local',
4750 'uninstall-info-local',
4751 'uninstall-pdf-local',
4752 'uninstall-ps-local')
4753 {
4754 my $x = $utarg;
4755 $x =~ s/-.*-/-/;
4756 reject_rule ($utarg, "use '$x', not '$utarg'");
4757 }
4759 reject_rule ('install-local',
4760 "use 'install-data-local' or 'install-exec-local', "
4761 . "not 'install-local'");
4763 reject_rule ('install-hook',
4764 "use 'install-data-hook' or 'install-exec-hook', "
4765 . "not 'install-hook'");
4767 # Install the -local hooks.
4768 foreach (keys %dependencies)
4769 {
4770 # Hooks are installed on the -am targets.
4771 s/-am$// or next;
4772 depend ("$_-am", "$_-local")
4773 if user_phony_rule "$_-local";
4774 }
4776 # Install the -hook hooks.
4777 # FIXME: Why not be as liberal as we are with -local hooks?
4778 foreach ('install-exec', 'install-data', 'uninstall')
4779 {
4780 if (user_phony_rule "$_-hook")
4781 {
4782 depend ('.MAKE', "$_-am");
4783 register_action("$_-am",
4784 ("\t\@\$(NORMAL_INSTALL)\n"
4785 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4786 }
4787 }
4789 # All the required targets are phony.
4790 depend ('.PHONY', keys %required_targets);
4792 # Actually output gathered targets.
4793 foreach (sort target_cmp keys %dependencies)
4794 {
4795 # If there is nothing about this guy, skip it.
4796 next
4797 unless (@{$dependencies{$_}}
4798 || $actions{$_}
4799 || $required_targets{$_});
4801 # Define gathered targets in undefined conditions.
4802 # FIXME: Right now we must handle .PHONY as an exception,
4803 # because people write things like
4804 # .PHONY: myphonytarget
4805 # to append dependencies. This would not work if Automake
4806 # refrained from defining its own .PHONY target as it does
4807 # with other overridden targets.
4808 # Likewise for '.MAKE'.
4809 my @undefined_conds = (TRUE,);
4810 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4811 {
4812 @undefined_conds =
4813 Automake::Rule::define ($_, 'internal',
4814 RULE_AUTOMAKE, TRUE, INTERNAL);
4815 }
4816 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4817 foreach my $cond (@undefined_conds)
4818 {
4819 my $condstr = $cond->subst_string;
4820 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4821 $output_rules .= $actions{$_} if defined $actions{$_};
4822 $output_rules .= "\n";
4823 }
4824 }
4825 }
4828 # &handle_tests_dejagnu ()
4829 # ------------------------
4830 sub handle_tests_dejagnu
4831 {
4832 push (@check_tests, 'check-DEJAGNU');
4833 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4834 }
4836 sub handle_per_suffix_test
4837 {
4838 my ($test_suffix, %transform) = @_;
4839 my ($pfx, $generic, $parallel_tests_option, $am_exeext);
4840 prog_error ("called with 'parallel-tests' option not set")
4841 unless $parallel_tests_option = option 'parallel-tests';
4842 if ($test_suffix eq '')
4843 {
4844 $pfx = '';
4845 $generic = 0;
4846 $am_exeext = 'FALSE';
4847 }
4848 else
4849 {
4850 prog_error ("test suffix '$test_suffix' lacks leading dot")
4851 unless $test_suffix =~ m/^\.(.*)/;
4852 $pfx = uc ($1) . '_';
4853 $generic = 1;
4854 $am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
4855 : 'FALSE';
4856 }
4857 # The "test driver" program, deputed to handle tests protocol used by
4858 # test scripts. By default, it's assumed that no protocol is used,
4859 # so we fall back to the old "parallel-tests" behaviour, implemented
4860 # by the 'test-driver' auxiliary script.
4861 if (! var "${pfx}LOG_DRIVER")
4862 {
4863 require_conf_file ($parallel_tests_option->{position}, FOREIGN,
4864 'test-driver');
4865 define_variable ("${pfx}LOG_DRIVER",
4866 "\$(SHELL) $am_config_aux_dir/test-driver",
4867 INTERNAL);
4868 }
4869 my $driver = '$(' . $pfx . 'LOG_DRIVER)';
4870 my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
4871 . ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
4872 my $compile = "${pfx}LOG_COMPILE";
4873 define_variable ($compile,
4874 '$(' . $pfx . 'LOG_COMPILER)'
4875 . ' $(AM_' . $pfx . 'LOG_FLAGS)'
4876 . ' $(' . $pfx . 'LOG_FLAGS)',
4877 INTERNAL);
4878 $output_rules .= file_contents ('check2', new Automake::Location,
4879 GENERIC => $generic,
4880 DRIVER => $driver,
4881 DRIVER_FLAGS => $driver_flags,
4882 COMPILE => '$(' . $compile . ')',
4883 EXT => $test_suffix,
4884 am__EXEEXT => $am_exeext,
4885 %transform);
4886 }
4888 # is_valid_test_extension ($EXT)
4889 # ------------------------------
4890 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4891 # otherwise.
4892 sub is_valid_test_extension ($)
4893 {
4894 my $ext = shift;
4895 return 1
4896 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4897 return 1
4898 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4899 return 0;
4900 }
4902 # Handle TESTS variable and other checks.
4903 sub handle_tests
4904 {
4905 if (option 'dejagnu')
4906 {
4907 &handle_tests_dejagnu;
4908 }
4909 else
4910 {
4911 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4912 {
4913 reject_var ($c, "'$c' defined but 'dejagnu' not in "
4914 . "'AUTOMAKE_OPTIONS'");
4915 }
4916 }
4918 if (var ('TESTS'))
4919 {
4920 push (@check_tests, 'check-TESTS');
4921 my $check_deps = "@check";
4922 $output_rules .= &file_contents ('check', new Automake::Location,
4923 COLOR => !! option 'color-tests',
4924 PARALLEL_TESTS => !! option 'parallel-tests',
4925 CHECK_DEPS => $check_deps);
4927 # Tests that are known programs should have $(EXEEXT) appended.
4928 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4929 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4930 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4931 if (var ('XFAIL_TESTS'));
4933 if (my $parallel_tests = option 'parallel-tests')
4934 {
4935 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4936 my $suff = '.test';
4937 my $at_exeext = '';
4938 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4939 if ($handle_exeext)
4940 {
4941 $at_exeext = subst ('EXEEXT');
4942 $suff = $at_exeext . ' ' . $suff;
4943 }
4944 if (! var 'TEST_EXTENSIONS')
4945 {
4946 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4947 }
4948 my $var = var 'TEST_EXTENSIONS';
4949 # Currently, we are not able to deal with conditional contents
4950 # in TEST_EXTENSIONS.
4951 if ($var->has_conditional_contents)
4952 {
4953 msg_var 'unsupported', $var,
4954 "'TEST_EXTENSIONS' cannot have conditional contents";
4955 }
4956 my @test_suffixes = $var->value_as_list_recursive;
4957 if ((my @invalid_test_suffixes =
4958 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4959 {
4960 error $var->rdef (TRUE)->location,
4961 "invalid test extensions: @invalid_test_suffixes";
4962 }
4963 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
4964 if ($handle_exeext)
4965 {
4966 unshift (@test_suffixes, $at_exeext)
4967 unless $test_suffixes[0] eq $at_exeext;
4968 }
4969 unshift (@test_suffixes, '');
4971 transform_variable_recursively
4972 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4973 sub {
4974 my ($subvar, $val, $cond, $full_cond) = @_;
4975 my $obj = $val;
4976 return $obj
4977 if $val =~ /^\@.*\@$/;
4978 $obj =~ s/\$\(EXEEXT\)$//o;
4980 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4981 {
4982 msg ('error', $subvar->rdef ($cond)->location,
4983 "parallel-tests: using '$1' in TESTS is currently broken: '$val'");
4984 }
4986 foreach my $test_suffix (@test_suffixes)
4987 {
4988 next
4989 if $test_suffix eq $at_exeext || $test_suffix eq '';
4990 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4991 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4992 }
4993 my $base = $obj;
4994 $obj .= '.log';
4995 handle_per_suffix_test ('',
4996 OBJ => $obj,
4997 BASE => $base,
4998 SOURCE => $val);
4999 return $obj;
5000 });
5002 my $nhelper=1;
5003 my $prev = 'TESTS';
5004 my $post = '';
5005 my $last_suffix = $test_suffixes[$#test_suffixes];
5006 my $cur = '';
5007 foreach my $test_suffix (@test_suffixes)
5008 {
5009 if ($test_suffix eq $last_suffix)
5010 {
5011 $cur = 'TEST_LOGS';
5012 }
5013 else
5014 {
5015 $cur = 'am__test_logs' . $nhelper;
5016 }
5017 define_variable ($cur,
5018 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5019 $post = '.log';
5020 $prev = $cur;
5021 $nhelper++;
5022 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5023 {
5024 handle_per_suffix_test ($test_suffix,
5025 OBJ => '',
5026 BASE => '$*',
5027 SOURCE => '$<');
5028 }
5029 }
5030 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5031 $clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
5032 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5033 }
5034 }
5035 }
5037 # Handle Emacs Lisp.
5038 sub handle_emacs_lisp
5039 {
5040 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5041 'lisp', 'noinst');
5043 return if ! @elfiles;
5045 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5046 map { $_->[1] } @elfiles);
5047 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5048 '$(am__ELFILES:.el=.elc)');
5049 # This one can be overridden by users.
5050 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5052 push @all, '$(ELCFILES)';
5054 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5055 'EMACS', 'lispdir');
5056 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5057 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5058 }
5060 # Handle Python
5061 sub handle_python
5062 {
5063 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5064 'noinst');
5065 return if ! @pyfiles;
5067 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5068 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5069 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5070 }
5072 # Handle Java.
5073 sub handle_java
5074 {
5075 my @sourcelist = &am_install_var ('-candist',
5076 'java', 'JAVA',
5077 'noinst', 'check');
5078 return if ! @sourcelist;
5080 my @prefixes = am_primary_prefixes ('JAVA', 1,
5081 'noinst', 'check');
5083 my $dir;
5084 my @java_sources = ();
5085 foreach my $prefix (@prefixes)
5086 {
5087 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5089 next
5090 if $curs eq 'EXTRA';
5092 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5094 if (defined $dir)
5095 {
5096 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5097 unless $curs eq $dir;
5098 }
5100 $dir = $curs;
5101 }
5103 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5104 "@java_sources");
5106 if ($dir eq 'check')
5107 {
5108 push (@check, "class$dir.stamp");
5109 }
5110 else
5111 {
5112 push (@all, "class$dir.stamp");
5113 }
5114 }
5117 # Handle some of the minor options.
5118 sub handle_minor_options
5119 {
5120 if (option 'readme-alpha')
5121 {
5122 if ($relative_dir eq '.')
5123 {
5124 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5125 {
5126 msg ('error-gnits', $package_version_location,
5127 "version '$package_version' doesn't follow " .
5128 "Gnits standards");
5129 }
5130 if (defined $1 && -f 'README-alpha')
5131 {
5132 # This means we have an alpha release. See
5133 # GNITS_VERSION_PATTERN for details.
5134 push_dist_common ('README-alpha');
5135 }
5136 }
5137 }
5138 }
5140 ################################################################
5142 # ($OUTPUT, @INPUTS)
5143 # &split_config_file_spec ($SPEC)
5144 # -------------------------------
5145 # Decode the Autoconf syntax for config files (files, headers, links
5146 # etc.).
5147 sub split_config_file_spec ($)
5148 {
5149 my ($spec) = @_;
5150 my ($output, @inputs) = split (/:/, $spec);
5152 push @inputs, "$output.in"
5153 unless @inputs;
5155 return ($output, @inputs);
5156 }
5158 # $input
5159 # locate_am (@POSSIBLE_SOURCES)
5160 # -----------------------------
5161 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5162 # This functions returns the first *.in file for which a *.am exists.
5163 # It returns undef otherwise.
5164 sub locate_am (@)
5165 {
5166 my (@rest) = @_;
5167 my $input;
5168 foreach my $file (@rest)
5169 {
5170 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5171 {
5172 $input = $file;
5173 last;
5174 }
5175 }
5176 return $input;
5177 }
5179 my %make_list;
5181 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5182 # ---------------------------------------------------
5183 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5184 # (or AC_OUTPUT).
5185 sub scan_autoconf_config_files ($$)
5186 {
5187 my ($where, $config_files) = @_;
5189 # Look at potential Makefile.am's.
5190 foreach (split ' ', $config_files)
5191 {
5192 # Must skip empty string for Perl 4.
5193 next if $_ eq "\\" || $_ eq '';
5195 # Handle $local:$input syntax.
5196 my ($local, @rest) = split (/:/);
5197 @rest = ("$local.in",) unless @rest;
5198 # Keep in sync with 'conffile-leading-dot.test'.
5199 msg ('unsupported', $where,
5200 "omit leading './' from config file names such as '$local';"
5201 . "\nremake rules might be subtly broken otherwise")
5202 if ($local =~ /^\.\//);
5203 my $input = locate_am @rest;
5204 if ($input)
5205 {
5206 # We have a file that automake should generate.
5207 $make_list{$input} = join (':', ($local, @rest));
5208 }
5209 else
5210 {
5211 # We have a file that automake should cause to be
5212 # rebuilt, but shouldn't generate itself.
5213 push (@other_input_files, $_);
5214 }
5215 $ac_config_files_location{$local} = $where;
5216 $ac_config_files_condition{$local} =
5217 new Automake::Condition (@cond_stack)
5218 if (@cond_stack);
5219 }
5220 }
5223 # &scan_autoconf_traces ($FILENAME)
5224 # ---------------------------------
5225 sub scan_autoconf_traces ($)
5226 {
5227 my ($filename) = @_;
5229 # Macros to trace, with their minimal number of arguments.
5230 #
5231 # IMPORTANT: If you add a macro here, you should also add this macro
5232 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5233 my %traced = (
5234 AC_CANONICAL_BUILD => 0,
5235 AC_CANONICAL_HOST => 0,
5236 AC_CANONICAL_TARGET => 0,
5237 AC_CONFIG_AUX_DIR => 1,
5238 AC_CONFIG_FILES => 1,
5239 AC_CONFIG_HEADERS => 1,
5240 AC_CONFIG_LIBOBJ_DIR => 1,
5241 AC_CONFIG_LINKS => 1,
5242 AC_FC_SRCEXT => 1,
5243 AC_INIT => 0,
5244 AC_LIBSOURCE => 1,
5245 AC_REQUIRE_AUX_FILE => 1,
5246 AC_SUBST_TRACE => 1,
5247 AM_AUTOMAKE_VERSION => 1,
5248 AM_PROG_MKDIR_P => 0, # FIXME: to be removed in 1.13
5249 AM_CONDITIONAL => 2,
5250 AM_GNU_GETTEXT => 0,
5251 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5252 AM_INIT_AUTOMAKE => 0,
5253 AM_MAINTAINER_MODE => 0,
5254 AM_PROG_AR => 0,
5255 AM_PROG_CC_C_O => 0,
5256 AM_SILENT_RULES => 0,
5257 _AM_SUBST_NOTMAKE => 1,
5258 _AM_COND_IF => 1,
5259 _AM_COND_ELSE => 1,
5260 _AM_COND_ENDIF => 1,
5261 LT_SUPPORTED_TAG => 1,
5262 _LT_AC_TAGCONFIG => 0,
5263 m4_include => 1,
5264 m4_sinclude => 1,
5265 sinclude => 1,
5266 );
5268 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5270 # Use a separator unlikely to be used, not ':', the default, which
5271 # has a precise meaning for AC_CONFIG_FILES and so on.
5272 $traces .= join (' ',
5273 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5274 (keys %traced));
5276 my $tracefh = new Automake::XFile ("$traces $filename |");
5277 verb "reading $traces";
5279 @cond_stack = ();
5280 my $where;
5282 while ($_ = $tracefh->getline)
5283 {
5284 chomp;
5285 my ($here, $depth, @args) = split (/::/);
5286 $where = new Automake::Location $here;
5287 my $macro = $args[0];
5289 prog_error ("unrequested trace '$macro'")
5290 unless exists $traced{$macro};
5292 # Skip and diagnose malformed calls.
5293 if ($#args < $traced{$macro})
5294 {
5295 msg ('syntax', $where, "not enough arguments for $macro");
5296 next;
5297 }
5299 # Alphabetical ordering please.
5300 if ($macro eq 'AC_CANONICAL_BUILD')
5301 {
5302 if ($seen_canonical <= AC_CANONICAL_BUILD)
5303 {
5304 $seen_canonical = AC_CANONICAL_BUILD;
5305 $canonical_location = $where;
5306 }
5307 }
5308 elsif ($macro eq 'AC_CANONICAL_HOST')
5309 {
5310 if ($seen_canonical <= AC_CANONICAL_HOST)
5311 {
5312 $seen_canonical = AC_CANONICAL_HOST;
5313 $canonical_location = $where;
5314 }
5315 }
5316 elsif ($macro eq 'AC_CANONICAL_TARGET')
5317 {
5318 $seen_canonical = AC_CANONICAL_TARGET;
5319 $canonical_location = $where;
5320 }
5321 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5322 {
5323 if ($seen_init_automake)
5324 {
5325 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5326 . "AM_INIT_AUTOMAKE ...", partial => 1);
5327 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5328 }
5329 $config_aux_dir = $args[1];
5330 $config_aux_dir_set_in_configure_ac = 1;
5331 check_directory ($config_aux_dir, $where);
5332 }
5333 elsif ($macro eq 'AC_CONFIG_FILES')
5334 {
5335 # Look at potential Makefile.am's.
5336 scan_autoconf_config_files ($where, $args[1]);
5337 }
5338 elsif ($macro eq 'AC_CONFIG_HEADERS')
5339 {
5340 foreach my $spec (split (' ', $args[1]))
5341 {
5342 my ($dest, @src) = split (':', $spec);
5343 $ac_config_files_location{$dest} = $where;
5344 push @config_headers, $spec;
5345 }
5346 }
5347 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5348 {
5349 $config_libobj_dir = $args[1];
5350 check_directory ($config_libobj_dir, $where);
5351 }
5352 elsif ($macro eq 'AC_CONFIG_LINKS')
5353 {
5354 foreach my $spec (split (' ', $args[1]))
5355 {
5356 my ($dest, $src) = split (':', $spec);
5357 $ac_config_files_location{$dest} = $where;
5358 push @config_links, $spec;
5359 }
5360 }
5361 elsif ($macro eq 'AC_FC_SRCEXT')
5362 {
5363 my $suffix = $args[1];
5364 # These flags are used as %SOURCEFLAG% in depend2.am,
5365 # where the trailing space is important.
5366 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5367 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5368 }
5369 elsif ($macro eq 'AC_INIT')
5370 {
5371 if (defined $args[2])
5372 {
5373 $package_version = $args[2];
5374 $package_version_location = $where;
5375 }
5376 }
5377 elsif ($macro eq 'AC_LIBSOURCE')
5378 {
5379 $libsources{$args[1]} = $here;
5380 }
5381 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5382 {
5383 # Only remember the first time a file is required.
5384 $required_aux_file{$args[1]} = $where
5385 unless exists $required_aux_file{$args[1]};
5386 }
5387 elsif ($macro eq 'AC_SUBST_TRACE')
5388 {
5389 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5390 # AC_SUBST(5), then too bad.
5391 $configure_vars{$args[1]} = $where
5392 if $args[1] =~ /^\w+$/;
5393 }
5394 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5395 {
5396 error ($where,
5397 "version mismatch. This is Automake $VERSION,\n" .
5398 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5399 "comes from Automake $args[1]. You should recreate\n" .
5400 "aclocal.m4 with aclocal and run automake again.\n",
5401 # $? = 63 is used to indicate version mismatch to missing.
5402 exit_code => 63)
5403 if $VERSION ne $args[1];
5405 $seen_automake_version = 1;
5406 }
5407 elsif ($macro eq 'AM_PROG_MKDIR_P') # FIXME: to be removed in 1.13
5408 {
5409 msg 'obsolete', $where, <<'EOF';
5410 The 'AM_PROG_MKDIR_P' macro is deprecated, and will soon be removed.
5411 You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
5412 and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
5413 EOF
5414 }
5415 elsif ($macro eq 'AM_CONDITIONAL')
5416 {
5417 $configure_cond{$args[1]} = $where;
5418 }
5419 elsif ($macro eq 'AM_GNU_GETTEXT')
5420 {
5421 $seen_gettext = $where;
5422 $ac_gettext_location = $where;
5423 $seen_gettext_external = grep ($_ eq 'external', @args);
5424 }
5425 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5426 {
5427 $seen_gettext_intl = $where;
5428 }
5429 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5430 {
5431 $seen_init_automake = $where;
5432 if (defined $args[2])
5433 {
5434 msg 'obsolete', $where, <<'EOF';
5435 AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
5436 http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_INIT_AUTOMAKE-invocation
5437 EOF
5438 $package_version = $args[2];
5439 $package_version_location = $where;
5440 }
5441 elsif (defined $args[1])
5442 {
5443 my @opts = split (' ', $args[1]);
5444 @opts = map { { option => $_, where => $where } } @opts;
5445 exit $exit_code if process_global_option_list (@opts);
5446 }
5447 }
5448 elsif ($macro eq 'AM_MAINTAINER_MODE')
5449 {
5450 $seen_maint_mode = $where;
5451 }
5452 elsif ($macro eq 'AM_PROG_AR')
5453 {
5454 $seen_ar = $where;
5455 }
5456 elsif ($macro eq 'AM_PROG_CC_C_O')
5457 {
5458 $seen_cc_c_o = $where;
5459 }
5460 elsif ($macro eq 'AM_SILENT_RULES')
5461 {
5462 set_global_option ('silent-rules', $where);
5463 }
5464 elsif ($macro eq '_AM_COND_IF')
5465 {
5466 cond_stack_if ('', $args[1], $where);
5467 error ($where, "missing m4 quoting, macro depth $depth")
5468 if ($depth != 1);
5469 }
5470 elsif ($macro eq '_AM_COND_ELSE')
5471 {
5472 cond_stack_else ('!', $args[1], $where);
5473 error ($where, "missing m4 quoting, macro depth $depth")
5474 if ($depth != 1);
5475 }
5476 elsif ($macro eq '_AM_COND_ENDIF')
5477 {
5478 cond_stack_endif (undef, undef, $where);
5479 error ($where, "missing m4 quoting, macro depth $depth")
5480 if ($depth != 1);
5481 }
5482 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5483 {
5484 $ignored_configure_vars{$args[1]} = $where;
5485 }
5486 elsif ($macro eq 'm4_include'
5487 || $macro eq 'm4_sinclude'
5488 || $macro eq 'sinclude')
5489 {
5490 # Skip missing 'sinclude'd files.
5491 next if $macro ne 'm4_include' && ! -f $args[1];
5493 # Some modified versions of Autoconf don't use
5494 # frozen files. Consequently it's possible that we see all
5495 # m4_include's performed during Autoconf's startup.
5496 # Obviously we don't want to distribute Autoconf's files
5497 # so we skip absolute filenames here.
5498 push @configure_deps, '$(top_srcdir)/' . $args[1]
5499 unless $here =~ m,^(?:\w:)?[\\/],;
5500 # Keep track of the greatest timestamp.
5501 if (-e $args[1])
5502 {
5503 my $mtime = mtime $args[1];
5504 $configure_deps_greatest_timestamp = $mtime
5505 if $mtime > $configure_deps_greatest_timestamp;
5506 }
5507 }
5508 elsif ($macro eq 'LT_SUPPORTED_TAG')
5509 {
5510 $libtool_tags{$args[1]} = 1;
5511 $libtool_new_api = 1;
5512 }
5513 elsif ($macro eq '_LT_AC_TAGCONFIG')
5514 {
5515 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5516 # We use it to detect whether tags are supported. Our
5517 # preferred interface is LT_SUPPORTED_TAG, but it was
5518 # introduced in Libtool 1.6.
5519 if (0 == keys %libtool_tags)
5520 {
5521 # Hardcode the tags supported by Libtool 1.5.
5522 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5523 }
5524 }
5525 }
5527 error ($where, "condition stack not properly closed")
5528 if (@cond_stack);
5530 $tracefh->close;
5531 }
5534 # &scan_autoconf_files ()
5535 # -----------------------
5536 # Check whether we use 'configure.ac' or 'configure.in'.
5537 # Scan it (and possibly 'aclocal.m4') for interesting things.
5538 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5539 sub scan_autoconf_files ()
5540 {
5541 # Reinitialize libsources here. This isn't really necessary,
5542 # since we currently assume there is only one configure.ac. But
5543 # that won't always be the case.
5544 %libsources = ();
5546 # Keep track of the youngest configure dependency.
5547 $configure_deps_greatest_timestamp = mtime $configure_ac;
5548 if (-e 'aclocal.m4')
5549 {
5550 my $mtime = mtime 'aclocal.m4';
5551 $configure_deps_greatest_timestamp = $mtime
5552 if $mtime > $configure_deps_greatest_timestamp;
5553 }
5555 scan_autoconf_traces ($configure_ac);
5557 @configure_input_files = sort keys %make_list;
5558 # Set input and output files if not specified by user.
5559 if (! @input_files)
5560 {
5561 @input_files = @configure_input_files;
5562 %output_files = %make_list;
5563 }
5566 if (! $seen_init_automake)
5567 {
5568 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5569 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5570 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5571 . "and that aclocal.m4 was recently regenerated "
5572 . "(using aclocal)");
5573 }
5574 else
5575 {
5576 if (! $seen_automake_version)
5577 {
5578 if (-f 'aclocal.m4')
5579 {
5580 error ($seen_init_automake,
5581 "your implementation of AM_INIT_AUTOMAKE comes from " .
5582 "an\nold Automake version. You should recreate " .
5583 "aclocal.m4\nwith aclocal and run automake again",
5584 # $? = 63 is used to indicate version mismatch to missing.
5585 exit_code => 63);
5586 }
5587 else
5588 {
5589 error ($seen_init_automake,
5590 "no proper implementation of AM_INIT_AUTOMAKE was " .
5591 "found,\nprobably because aclocal.m4 is missing.\n" .
5592 "You should run aclocal to create this file, then\n" .
5593 "run automake again");
5594 }
5595 }
5596 }
5598 locate_aux_dir ();
5600 # Look for some files we need. Always check for these. This
5601 # check must be done for every run, even those where we are only
5602 # looking at a subdir Makefile. We must set relative_dir for
5603 # push_required_file to work.
5604 # Sort the files for stable verbose output.
5605 $relative_dir = '.';
5606 foreach my $file (sort keys %required_aux_file)
5607 {
5608 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5609 }
5610 err_am "'install.sh' is an anachronism; use 'install-sh' instead"
5611 if -f $config_aux_dir . '/install.sh';
5613 # Preserve dist_common for later.
5614 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5616 }
5618 ################################################################
5620 # Set up for Cygnus mode.
5621 sub check_cygnus
5622 {
5623 my $cygnus = option 'cygnus';
5624 return unless $cygnus;
5626 # This feature is deprecated, will be removed in the next
5627 # Automake major release.
5628 msg 'obsolete', $cygnus->get,
5629 "support for Cygnus-style trees is deprecated";
5631 set_strictness ('foreign');
5632 set_option ('no-installinfo', $cygnus);
5633 set_option ('no-dependencies', $cygnus);
5634 set_option ('no-dist', $cygnus);
5636 err_ac "'AM_MAINTAINER_MODE' required when --cygnus specified"
5637 if !$seen_maint_mode;
5638 }
5640 # Do any extra checking for GNU standards.
5641 sub check_gnu_standards
5642 {
5643 if ($relative_dir eq '.')
5644 {
5645 # In top level (or only) directory.
5646 require_file ("$am_file.am", GNU,
5647 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5649 # Accept one of these three licenses; default to COPYING.
5650 # Make sure we do not overwrite an existing license.
5651 my $license;
5652 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5653 {
5654 if (-f $_)
5655 {
5656 $license = $_;
5657 last;
5658 }
5659 }
5660 require_file ("$am_file.am", GNU, 'COPYING')
5661 unless $license;
5662 }
5664 for my $opt ('no-installman', 'no-installinfo')
5665 {
5666 msg ('error-gnu', option $opt,
5667 "option '$opt' disallowed by GNU standards")
5668 if option $opt;
5669 }
5670 }
5672 # Do any extra checking for GNITS standards.
5673 sub check_gnits_standards
5674 {
5675 if ($relative_dir eq '.')
5676 {
5677 # In top level (or only) directory.
5678 require_file ("$am_file.am", GNITS, 'THANKS');
5679 }
5680 }
5682 ################################################################
5683 #
5684 # Functions to handle files of each language.
5686 # Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5687 # simple formula: Return value is LANG_SUBDIR if the resulting object
5688 # file should be in a subdir if the source file is, LANG_PROCESS if
5689 # file is to be dealt with, LANG_IGNORE otherwise.
5691 # Much of the actual processing is handled in
5692 # handle_single_transform. These functions exist so that
5693 # auxiliary information can be recorded for a later cleanup pass.
5694 # Note that the calls to these functions are computed, so don't bother
5695 # searching for their precise names in the source.
5697 # This is just a convenience function that can be used to determine
5698 # when a subdir object should be used.
5699 sub lang_sub_obj
5700 {
5701 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5702 }
5704 # Rewrite a single C source file.
5705 sub lang_c_rewrite
5706 {
5707 my ($directory, $base, $ext, $obj, $have_per_exec_flags, $var) = @_;
5709 my $r = LANG_PROCESS;
5710 if (option 'subdir-objects')
5711 {
5712 $r = LANG_SUBDIR;
5713 if ($directory && $directory ne '.')
5714 {
5715 $base = $directory . '/' . $base;
5717 # libtool is always able to put the object at the proper place,
5718 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5719 msg_var ('portability', $var,
5720 "compiling '$base.c' in subdir requires "
5721 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5722 uniq_scope => US_GLOBAL,
5723 uniq_part => 'AM_PROG_CC_C_O subdir')
5724 unless $seen_cc_c_o || $obj eq '.lo';
5725 }
5726 }
5728 if (! $seen_cc_c_o
5729 && $have_per_exec_flags
5730 && ! option 'subdir-objects'
5731 && $obj ne '.lo')
5732 {
5733 msg_var ('portability',
5734 $var, "compiling '$base.c' with per-target flags requires "
5735 . "'AM_PROG_CC_C_O' in '$configure_ac'",
5736 uniq_scope => US_GLOBAL,
5737 uniq_part => 'AM_PROG_CC_C_O per-target')
5738 }
5740 return $r;
5741 }
5743 # Rewrite a single C++ source file.
5744 sub lang_cxx_rewrite
5745 {
5746 return &lang_sub_obj;
5747 }
5749 # Rewrite a single header file.
5750 sub lang_header_rewrite
5751 {
5752 # Header files are simply ignored.
5753 return LANG_IGNORE;
5754 }
5756 # Rewrite a single Vala source file.
5757 sub lang_vala_rewrite
5758 {
5759 my ($directory, $base, $ext) = @_;
5761 (my $newext = $ext) =~ s/vala$/c/;
5762 return (LANG_SUBDIR, $newext);
5763 }
5765 # Rewrite a single yacc file.
5766 sub lang_yacc_rewrite
5767 {
5768 my ($directory, $base, $ext) = @_;
5770 my $r = &lang_sub_obj;
5771 (my $newext = $ext) =~ tr/y/c/;
5772 return ($r, $newext);
5773 }
5775 # Rewrite a single yacc++ file.
5776 sub lang_yaccxx_rewrite
5777 {
5778 my ($directory, $base, $ext) = @_;
5780 my $r = &lang_sub_obj;
5781 (my $newext = $ext) =~ tr/y/c/;
5782 return ($r, $newext);
5783 }
5785 # Rewrite a single lex file.
5786 sub lang_lex_rewrite
5787 {
5788 my ($directory, $base, $ext) = @_;
5790 my $r = &lang_sub_obj;
5791 (my $newext = $ext) =~ tr/l/c/;
5792 return ($r, $newext);
5793 }
5795 # Rewrite a single lex++ file.
5796 sub lang_lexxx_rewrite
5797 {
5798 my ($directory, $base, $ext) = @_;
5800 my $r = &lang_sub_obj;
5801 (my $newext = $ext) =~ tr/l/c/;
5802 return ($r, $newext);
5803 }
5805 # Rewrite a single assembly file.
5806 sub lang_asm_rewrite
5807 {
5808 return &lang_sub_obj;
5809 }
5811 # Rewrite a single preprocessed assembly file.
5812 sub lang_cppasm_rewrite
5813 {
5814 return &lang_sub_obj;
5815 }
5817 # Rewrite a single Fortran 77 file.
5818 sub lang_f77_rewrite
5819 {
5820 return &lang_sub_obj;
5821 }
5823 # Rewrite a single Fortran file.
5824 sub lang_fc_rewrite
5825 {
5826 return &lang_sub_obj;
5827 }
5829 # Rewrite a single preprocessed Fortran file.
5830 sub lang_ppfc_rewrite
5831 {
5832 return &lang_sub_obj;
5833 }
5835 # Rewrite a single preprocessed Fortran 77 file.
5836 sub lang_ppf77_rewrite
5837 {
5838 return &lang_sub_obj;
5839 }
5841 # Rewrite a single ratfor file.
5842 sub lang_ratfor_rewrite
5843 {
5844 return &lang_sub_obj;
5845 }
5847 # Rewrite a single Objective C file.
5848 sub lang_objc_rewrite
5849 {
5850 return &lang_sub_obj;
5851 }
5853 # Rewrite a single Objective C++ file.
5854 sub lang_objcxx_rewrite
5855 {
5856 return &lang_sub_obj;
5857 }
5859 # Rewrite a single Unified Parallel C file.
5860 sub lang_upc_rewrite
5861 {
5862 return &lang_sub_obj;
5863 }
5865 # Rewrite a single Java file.
5866 sub lang_java_rewrite
5867 {
5868 return LANG_SUBDIR;
5869 }
5871 # The lang_X_finish functions are called after all source file
5872 # processing is done. Each should handle defining rules for the
5873 # language, etc. A finish function is only called if a source file of
5874 # the appropriate type has been seen.
5876 sub lang_vala_finish_target ($$)
5877 {
5878 my ($self, $name) = @_;
5880 my $derived = canonicalize ($name);
5881 my $var = var "${derived}_SOURCES";
5882 return unless $var;
5884 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
5886 # For automake bug#11229.
5887 return unless @vala_sources;
5889 foreach my $vala_file (@vala_sources)
5890 {
5891 my $c_file = $vala_file;
5892 if ($c_file =~ s/(.*)\.vala$/$1.c/)
5893 {
5894 $c_file = "\$(srcdir)/$c_file";
5895 $output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
5896 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5897 . "\t\@if test -f \$@; then :; else \\\n"
5898 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5899 . "\tfi\n";
5900 $clean_files{$c_file} = MAINTAINER_CLEAN;
5901 }
5902 }
5904 # Add rebuild rules for generated header and vapi files
5905 my $flags = var ($derived . '_VALAFLAGS');
5906 if ($flags)
5907 {
5908 my $lastflag = '';
5909 foreach my $flag ($flags->value_as_list_recursive)
5910 {
5911 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
5912 '--vapi', '--internal-vapi', '--gir')))
5913 {
5914 my $headerfile = "\$(srcdir)/$flag";
5915 $output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
5916 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
5917 . "\t\@if test -f \$@; then :; else \\\n"
5918 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
5919 . "\tfi\n";
5921 # valac is not used when building from dist tarballs
5922 # distribute the generated files
5923 push_dist_common ($headerfile);
5924 $clean_files{$headerfile} = MAINTAINER_CLEAN;
5925 }
5926 $lastflag = $flag;
5927 }
5928 }
5930 my $compile = $self->compile;
5932 # Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
5933 # rule into '${derived}_VALAFLAGS' if it exists.
5934 my $val = "${derived}_VALAFLAGS";
5935 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
5936 if set_seen ($val);
5938 # VALAFLAGS is a user variable (per GNU Standards),
5939 # it should not be overridden in the Makefile...
5940 check_user_variables 'VALAFLAGS';
5942 my $dirname = dirname ($name);
5944 # Only generate C code, do not run C compiler
5945 $compile .= " -C";
5947 my $verbose = verbose_flag ('VALAC');
5948 my $silent = silent_flag ();
5949 my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
5951 $output_rules .=
5952 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
5953 # Since the C files generated from the vala sources depend on the
5954 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
5955 # those of the C files generated by the valac invocation below (this is
5956 # especially important on systems with sub-second timestamp resolution).
5957 # Thus we need to create the stamp file *before* invoking valac, and to
5958 # move it to its final location only after valac has been invoked.
5959 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
5960 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
5961 "\t${silent}mv -f \$\@-t \$\@\n";
5963 push_dist_common ($stampfile);
5965 $clean_files{$stampfile} = MAINTAINER_CLEAN;
5966 }
5968 # Add output rules to invoke valac and create stamp file as a witness
5969 # to handle multiple outputs. This function is called after all source
5970 # file processing is done.
5971 sub lang_vala_finish
5972 {
5973 my ($self) = @_;
5975 foreach my $prog (keys %known_programs)
5976 {
5977 lang_vala_finish_target ($self, $prog);
5978 }
5980 while (my ($name) = each %known_libraries)
5981 {
5982 lang_vala_finish_target ($self, $name);
5983 }
5984 }
5986 # The built .c files should be cleaned only on maintainer-clean
5987 # as the .c files are distributed. This function is called for each
5988 # .vala source file.
5989 sub lang_vala_target_hook
5990 {
5991 my ($self, $aggregate, $output, $input, %transform) = @_;
5993 $clean_files{$output} = MAINTAINER_CLEAN;
5994 }
5996 # This is a yacc helper which is called whenever we have decided to
5997 # compile a yacc file.
5998 sub lang_yacc_target_hook
5999 {
6000 my ($self, $aggregate, $output, $input, %transform) = @_;
6002 # If some relevant *YFLAGS variable contains the '-d' flag, we'll
6003 # have to to generate special code.
6004 my $yflags_contains_minus_d = 0;
6006 foreach my $pfx ("", "${aggregate}_")
6007 {
6008 my $yflagsvar = var ("${pfx}YFLAGS");
6009 next unless $yflagsvar;
6010 # We cannot work reliably with conditionally-defined YFLAGS.
6011 if ($yflagsvar->has_conditional_contents)
6012 {
6013 msg_var ('unsupported', $yflagsvar,
6014 "'${pfx}YFLAGS' cannot have conditional contents");
6015 }
6016 else
6017 {
6018 $yflags_contains_minus_d = 1
6019 if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
6020 }
6021 }
6023 if ($yflags_contains_minus_d)
6024 {
6025 # Found a '-d' that applies to the compilation of this file.
6026 # Add a dependency for the generated header file, and arrange
6027 # for that file to be included in the distribution.
6029 # The extension of the output file (e.g., '.c' or '.cxx').
6030 # We'll need it to compute the name of the generated header file.
6031 (my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
6033 # We know that a yacc input should be turned into either a C or
6034 # C++ output file. We depend on this fact (here and in yacc.am),
6035 # so check that it really holds.
6036 my $lang = $languages{$extension_map{$output_ext}};
6037 prog_error "invalid output name '$output' for yacc file '$input'"
6038 if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
6040 (my $header_ext = $output_ext) =~ s/c/h/g;
6041 # Quote $output_ext in the regexp, so that dots in it are taken
6042 # as literal dots, not as metacharacters.
6043 (my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
6045 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6046 RULE_AUTOMAKE, TRUE,
6047 INTERNAL))
6048 {
6049 my $condstr = $cond->subst_string;
6050 $output_rules .=
6051 "$condstr${header}: $output\n"
6052 # Recover from removal of $header
6053 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
6054 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
6055 }
6056 # Distribute the generated file, unless its .y source was
6057 # listed in a nodist_ variable. (&handle_source_transform
6058 # will set DIST_SOURCE.)
6059 &push_dist_common ($header)
6060 if $transform{'DIST_SOURCE'};
6062 # The GNU rules say that yacc/lex output files should be removed
6063 # by maintainer-clean. However, if the files are not distributed,
6064 # then we want to remove them with "make clean"; otherwise,
6065 # "make distcheck" will fail.
6066 $clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6067 }
6068 # See the comment above for $HEADER.
6069 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6070 }
6072 # This is a lex helper which is called whenever we have decided to
6073 # compile a lex file.
6074 sub lang_lex_target_hook
6075 {
6076 my ($self, $aggregate, $output, $input, %transform) = @_;
6077 # The GNU rules say that yacc/lex output files should be removed
6078 # by maintainer-clean. However, if the files are not distributed,
6079 # then we want to remove them with "make clean"; otherwise,
6080 # "make distcheck" will fail.
6081 $clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
6082 }
6084 # This is a helper for both lex and yacc.
6085 sub yacc_lex_finish_helper
6086 {
6087 return if defined $language_scratch{'lex-yacc-done'};
6088 $language_scratch{'lex-yacc-done'} = 1;
6090 # FIXME: for now, no line number.
6091 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6092 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6093 }
6095 sub lang_yacc_finish
6096 {
6097 return if defined $language_scratch{'yacc-done'};
6098 $language_scratch{'yacc-done'} = 1;
6100 reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
6102 yacc_lex_finish_helper;
6103 }
6106 sub lang_lex_finish
6107 {
6108 return if defined $language_scratch{'lex-done'};
6109 $language_scratch{'lex-done'} = 1;
6111 yacc_lex_finish_helper;
6112 }
6115 # Given a hash table of linker names, pick the name that has the most
6116 # precedence. This is lame, but something has to have global
6117 # knowledge in order to eliminate the conflict. Add more linkers as
6118 # required.
6119 sub resolve_linker
6120 {
6121 my (%linkers) = @_;
6123 foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6124 {
6125 return $l if defined $linkers{$l};
6126 }
6127 return 'LINK';
6128 }
6130 # Called to indicate that an extension was used.
6131 sub saw_extension
6132 {
6133 my ($ext) = @_;
6134 if (! defined $extension_seen{$ext})
6135 {
6136 $extension_seen{$ext} = 1;
6137 }
6138 else
6139 {
6140 ++$extension_seen{$ext};
6141 }
6142 }
6144 # Return the number of files seen for a given language. Knows about
6145 # special cases we care about. FIXME: this is hideous. We need
6146 # something that involves real language objects. For instance yacc
6147 # and yaccxx could both derive from a common yacc class which would
6148 # know about the strange ylwrap requirement. (Or better yet we could
6149 # just not support legacy yacc!)
6150 sub count_files_for_language
6151 {
6152 my ($name) = @_;
6154 my @names;
6155 if ($name eq 'yacc' || $name eq 'yaccxx')
6156 {
6157 @names = ('yacc', 'yaccxx');
6158 }
6159 elsif ($name eq 'lex' || $name eq 'lexxx')
6160 {
6161 @names = ('lex', 'lexxx');
6162 }
6163 else
6164 {
6165 @names = ($name);
6166 }
6168 my $r = 0;
6169 foreach $name (@names)
6170 {
6171 my $lang = $languages{$name};
6172 foreach my $ext (@{$lang->extensions})
6173 {
6174 $r += $extension_seen{$ext}
6175 if defined $extension_seen{$ext};
6176 }
6177 }
6179 return $r
6180 }
6182 # Called to ask whether source files have been seen . If HEADERS is 1,
6183 # headers can be included.
6184 sub saw_sources_p
6185 {
6186 my ($headers) = @_;
6188 # count all the sources
6189 my $count = 0;
6190 foreach my $val (values %extension_seen)
6191 {
6192 $count += $val;
6193 }
6195 if (!$headers)
6196 {
6197 $count -= count_files_for_language ('header');
6198 }
6200 return $count > 0;
6201 }
6204 # register_language (%ATTRIBUTE)
6205 # ------------------------------
6206 # Register a single language.
6207 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6208 sub register_language (%)
6209 {
6210 my (%option) = @_;
6212 # Set the defaults.
6213 $option{'autodep'} = 'no'
6214 unless defined $option{'autodep'};
6215 $option{'linker'} = ''
6216 unless defined $option{'linker'};
6217 $option{'flags'} = []
6218 unless defined $option{'flags'};
6219 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6220 unless defined $option{'output_extensions'};
6221 $option{'nodist_specific'} = 0
6222 unless defined $option{'nodist_specific'};
6224 my $lang = new Language (%option);
6226 # Fill indexes.
6227 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6228 $languages{$lang->name} = $lang;
6229 my $link = $lang->linker;
6230 if ($link)
6231 {
6232 if (exists $link_languages{$link})
6233 {
6234 prog_error ("'$link' has different definitions in "
6235 . $lang->name . " and " . $link_languages{$link}->name)
6236 if $lang->link ne $link_languages{$link}->link;
6237 }
6238 else
6239 {
6240 $link_languages{$link} = $lang;
6241 }
6242 }
6244 # Update the pattern of known extensions.
6245 accept_extensions (@{$lang->extensions});
6247 # Upate the $suffix_rule map.
6248 foreach my $suffix (@{$lang->extensions})
6249 {
6250 foreach my $dest (&{$lang->output_extensions} ($suffix))
6251 {
6252 register_suffix_rule (INTERNAL, $suffix, $dest);
6253 }
6254 }
6255 }
6257 # derive_suffix ($EXT, $OBJ)
6258 # --------------------------
6259 # This function is used to find a path from a user-specified suffix $EXT
6260 # to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
6261 sub derive_suffix ($$)
6262 {
6263 my ($source_ext, $obj) = @_;
6265 while (! $extension_map{$source_ext}
6266 && $source_ext ne $obj
6267 && exists $suffix_rules->{$source_ext}
6268 && exists $suffix_rules->{$source_ext}{$obj})
6269 {
6270 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6271 }
6273 return $source_ext;
6274 }
6277 ################################################################
6279 # Pretty-print something and append to output_rules.
6280 sub pretty_print_rule
6281 {
6282 $output_rules .= &makefile_wrap (@_);
6283 }
6286 ################################################################
6289 ## -------------------------------- ##
6290 ## Handling the conditional stack. ##
6291 ## -------------------------------- ##
6294 # $STRING
6295 # make_conditional_string ($NEGATE, $COND)
6296 # ----------------------------------------
6297 sub make_conditional_string ($$)
6298 {
6299 my ($negate, $cond) = @_;
6300 $cond = "${cond}_TRUE"
6301 unless $cond =~ /^TRUE|FALSE$/;
6302 $cond = Automake::Condition::conditional_negate ($cond)
6303 if $negate;
6304 return $cond;
6305 }
6308 my %_am_macro_for_cond =
6309 (
6310 AMDEP => "one of the compiler tests\n"
6311 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
6312 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6313 am__fastdepCC => 'AC_PROG_CC',
6314 am__fastdepCCAS => 'AM_PROG_AS',
6315 am__fastdepCXX => 'AC_PROG_CXX',
6316 am__fastdepGCJ => 'AM_PROG_GCJ',
6317 am__fastdepOBJC => 'AC_PROG_OBJC',
6318 am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
6319 am__fastdepUPC => 'AM_PROG_UPC'
6320 );
6322 # $COND
6323 # cond_stack_if ($NEGATE, $COND, $WHERE)
6324 # --------------------------------------
6325 sub cond_stack_if ($$$)
6326 {
6327 my ($negate, $cond, $where) = @_;
6329 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6330 {
6331 my $text = "$cond does not appear in AM_CONDITIONAL";
6332 my $scope = US_LOCAL;
6333 if (exists $_am_macro_for_cond{$cond})
6334 {
6335 my $mac = $_am_macro_for_cond{$cond};
6336 $text .= "\n The usual way to define '$cond' is to add ";
6337 $text .= ($mac =~ / /) ? $mac : "'$mac'";
6338 $text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
6339 # These warnings appear in Automake files (depend2.am),
6340 # so there is no need to display them more than once:
6341 $scope = US_GLOBAL;
6342 }
6343 error $where, $text, uniq_scope => $scope;
6344 }
6346 push (@cond_stack, make_conditional_string ($negate, $cond));
6348 return new Automake::Condition (@cond_stack);
6349 }
6352 # $COND
6353 # cond_stack_else ($NEGATE, $COND, $WHERE)
6354 # ----------------------------------------
6355 sub cond_stack_else ($$$)
6356 {
6357 my ($negate, $cond, $where) = @_;
6359 if (! @cond_stack)
6360 {
6361 error $where, "else without if";
6362 return FALSE;
6363 }
6365 $cond_stack[$#cond_stack] =
6366 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6368 # If $COND is given, check against it.
6369 if (defined $cond)
6370 {
6371 $cond = make_conditional_string ($negate, $cond);
6373 error ($where, "else reminder ($negate$cond) incompatible with "
6374 . "current conditional: $cond_stack[$#cond_stack]")
6375 if $cond_stack[$#cond_stack] ne $cond;
6376 }
6378 return new Automake::Condition (@cond_stack);
6379 }
6382 # $COND
6383 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6384 # -----------------------------------------
6385 sub cond_stack_endif ($$$)
6386 {
6387 my ($negate, $cond, $where) = @_;
6388 my $old_cond;
6390 if (! @cond_stack)
6391 {
6392 error $where, "endif without if";
6393 return TRUE;
6394 }
6396 # If $COND is given, check against it.
6397 if (defined $cond)
6398 {
6399 $cond = make_conditional_string ($negate, $cond);
6401 error ($where, "endif reminder ($negate$cond) incompatible with "
6402 . "current conditional: $cond_stack[$#cond_stack]")
6403 if $cond_stack[$#cond_stack] ne $cond;
6404 }
6406 pop @cond_stack;
6408 return new Automake::Condition (@cond_stack);
6409 }
6415 ## ------------------------ ##
6416 ## Handling the variables. ##
6417 ## ------------------------ ##
6420 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6421 # -----------------------------------------------------
6422 # Like define_variable, but the value is a list, and the variable may
6423 # be defined conditionally. The second argument is the condition
6424 # under which the value should be defined; this should be the empty
6425 # string to define the variable unconditionally. The third argument
6426 # is a list holding the values to use for the variable. The value is
6427 # pretty printed in the output file.
6428 sub define_pretty_variable ($$$@)
6429 {
6430 my ($var, $cond, $where, @value) = @_;
6432 if (! vardef ($var, $cond))
6433 {
6434 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6435 '', $where, VAR_PRETTY);
6436 rvar ($var)->rdef ($cond)->set_seen;
6437 }
6438 }
6441 # define_variable ($VAR, $VALUE, $WHERE)
6442 # --------------------------------------
6443 # Define a new Automake Makefile variable VAR to VALUE, but only if
6444 # not already defined.
6445 sub define_variable ($$$)
6446 {
6447 my ($var, $value, $where) = @_;
6448 define_pretty_variable ($var, TRUE, $where, $value);
6449 }
6452 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6453 # ------------------------------------------------------------
6454 # Define the $VAR which content is the list of file names composed of
6455 # a @BASENAME and the $EXTENSION.
6456 sub define_files_variable ($\@$$)
6457 {
6458 my ($var, $basename, $extension, $where) = @_;
6459 define_variable ($var,
6460 join (' ', map { "$_.$extension" } @$basename),
6461 $where);
6462 }
6465 # Like define_variable, but define a variable to be the configure
6466 # substitution by the same name.
6467 sub define_configure_variable ($)
6468 {
6469 my ($var) = @_;
6470 # Some variables we do not want to output. For instance it
6471 # would be a bad idea to output `U = @U@` when `@U@` can be
6472 # substituted as `\`.
6473 my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
6474 Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst $var,
6475 '', $configure_vars{$var}, $pretty);
6476 }
6479 # define_compiler_variable ($LANG)
6480 # --------------------------------
6481 # Define a compiler variable. We also handle defining the 'LT'
6482 # version of the command when using libtool.
6483 sub define_compiler_variable ($)
6484 {
6485 my ($lang) = @_;
6487 my ($var, $value) = ($lang->compiler, $lang->compile);
6488 my $libtool_tag = '';
6489 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6490 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6491 &define_variable ($var, $value, INTERNAL);
6492 if (var ('LIBTOOL'))
6493 {
6494 my $verbose = define_verbose_libtool ();
6495 &define_variable ("LT$var",
6496 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6497 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6498 INTERNAL);
6499 }
6500 define_verbose_tagvar ($lang->ccer || 'GEN');
6501 }
6504 # define_linker_variable ($LANG)
6505 # ------------------------------
6506 # Define linker variables.
6507 sub define_linker_variable ($)
6508 {
6509 my ($lang) = @_;
6511 my $libtool_tag = '';
6512 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6513 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6514 # CCLD = $(CC).
6515 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6516 # CCLINK = $(CCLD) blah blah...
6517 my $link = '';
6518 if (var ('LIBTOOL'))
6519 {
6520 my $verbose = define_verbose_libtool ();
6521 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6522 . "\$(LIBTOOLFLAGS) --mode=link ";
6523 }
6524 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6525 &define_variable ($lang->compiler, $lang);
6526 &define_verbose_tagvar ($lang->lder || 'GEN');
6527 }
6529 sub define_per_target_linker_variable ($$)
6530 {
6531 my ($linker, $target) = @_;
6533 # If the user wrote a custom link command, we don't define ours.
6534 return "${target}_LINK"
6535 if set_seen "${target}_LINK";
6537 my $xlink = $linker ? $linker : 'LINK';
6539 my $lang = $link_languages{$xlink};
6540 prog_error "Unknown language for linker variable '$xlink'"
6541 unless $lang;
6543 my $link_command = $lang->link;
6544 if (var 'LIBTOOL')
6545 {
6546 my $libtool_tag = '';
6547 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6548 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6550 my $verbose = define_verbose_libtool ();
6551 $link_command =
6552 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6553 . "--mode=link " . $link_command;
6554 }
6556 # Rewrite each occurrence of 'AM_$flag' in the link
6557 # command into '${derived}_$flag' if it exists.
6558 my $orig_command = $link_command;
6559 my @flags = (@{$lang->flags}, 'LDFLAGS');
6560 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6561 for my $flag (@flags)
6562 {
6563 my $val = "${target}_$flag";
6564 $link_command =~ s/\(AM_$flag\)/\($val\)/
6565 if set_seen ($val);
6566 }
6568 # If the computed command is the same as the generic command, use
6569 # the command linker variable.
6570 return ($lang->linker, $lang->lder)
6571 if $link_command eq $orig_command;
6573 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6574 return ("${target}_LINK", $lang->lder);
6575 }
6577 ################################################################
6579 # &check_trailing_slash ($WHERE, $LINE)
6580 # -------------------------------------
6581 # Return 1 iff $LINE ends with a slash.
6582 # Might modify $LINE.
6583 sub check_trailing_slash ($\$)
6584 {
6585 my ($where, $line) = @_;
6587 # Ignore '##' lines.
6588 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6590 # Catch and fix a common error.
6591 msg "syntax", $where, "whitespace following trailing backslash"
6592 if $$line =~ s/\\\s+\n$/\\\n/;
6594 return $$line =~ /\\$/;
6595 }
6598 # &read_am_file ($AMFILE, $WHERE)
6599 # -------------------------------
6600 # Read Makefile.am and set up %contents. Simultaneously copy lines
6601 # from Makefile.am into $output_trailer, or define variables as
6602 # appropriate. NOTE we put rules in the trailer section. We want
6603 # user rules to come after our generated stuff.
6604 sub read_am_file ($$)
6605 {
6606 my ($amfile, $where) = @_;
6608 my $am_file = new Automake::XFile ("< $amfile");
6609 verb "reading $amfile";
6611 # Keep track of the youngest output dependency.
6612 my $mtime = mtime $amfile;
6613 $output_deps_greatest_timestamp = $mtime
6614 if $mtime > $output_deps_greatest_timestamp;
6616 my $spacing = '';
6617 my $comment = '';
6618 my $blank = 0;
6619 my $saw_bk = 0;
6620 my $var_look = VAR_ASIS;
6622 use constant IN_VAR_DEF => 0;
6623 use constant IN_RULE_DEF => 1;
6624 use constant IN_COMMENT => 2;
6625 my $prev_state = IN_RULE_DEF;
6627 while ($_ = $am_file->getline)
6628 {
6629 $where->set ("$amfile:$.");
6630 if (/$IGNORE_PATTERN/o)
6631 {
6632 # Merely delete comments beginning with two hashes.
6633 }
6634 elsif (/$WHITE_PATTERN/o)
6635 {
6636 error $where, "blank line following trailing backslash"
6637 if $saw_bk;
6638 # Stick a single white line before the incoming macro or rule.
6639 $spacing = "\n";
6640 $blank = 1;
6641 # Flush all comments seen so far.
6642 if ($comment ne '')
6643 {
6644 $output_vars .= $comment;
6645 $comment = '';
6646 }
6647 }
6648 elsif (/$COMMENT_PATTERN/o)
6649 {
6650 # Stick comments before the incoming macro or rule. Make
6651 # sure a blank line precedes the first block of comments.
6652 $spacing = "\n" unless $blank;
6653 $blank = 1;
6654 $comment .= $spacing . $_;
6655 $spacing = '';
6656 $prev_state = IN_COMMENT;
6657 }
6658 else
6659 {
6660 last;
6661 }
6662 $saw_bk = check_trailing_slash ($where, $_);
6663 }
6665 # We save the conditional stack on entry, and then check to make
6666 # sure it is the same on exit. This lets us conditionally include
6667 # other files.
6668 my @saved_cond_stack = @cond_stack;
6669 my $cond = new Automake::Condition (@cond_stack);
6671 my $last_var_name = '';
6672 my $last_var_type = '';
6673 my $last_var_value = '';
6674 my $last_where;
6675 # FIXME: shouldn't use $_ in this loop; it is too big.
6676 while ($_)
6677 {
6678 $where->set ("$amfile:$.");
6680 # Make sure the line is \n-terminated.
6681 chomp;
6682 $_ .= "\n";
6684 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6685 # used by users. @MAINT@ is an anachronism now.
6686 $_ =~ s/\@MAINT\@//g
6687 unless $seen_maint_mode;
6689 my $new_saw_bk = check_trailing_slash ($where, $_);
6691 if (/$IGNORE_PATTERN/o)
6692 {
6693 # Merely delete comments beginning with two hashes.
6695 # Keep any backslash from the previous line.
6696 $new_saw_bk = $saw_bk;
6697 }
6698 elsif (/$WHITE_PATTERN/o)
6699 {
6700 # Stick a single white line before the incoming macro or rule.
6701 $spacing = "\n";
6702 error $where, "blank line following trailing backslash"
6703 if $saw_bk;
6704 }
6705 elsif (/$COMMENT_PATTERN/o)
6706 {
6707 error $where, "comment following trailing backslash"
6708 if $saw_bk && $prev_state != IN_COMMENT;
6710 # Stick comments before the incoming macro or rule.
6711 $comment .= $spacing . $_;
6712 $spacing = '';
6713 $prev_state = IN_COMMENT;
6714 }
6715 elsif ($saw_bk)
6716 {
6717 if ($prev_state == IN_RULE_DEF)
6718 {
6719 my $cond = new Automake::Condition @cond_stack;
6720 $output_trailer .= $cond->subst_string;
6721 $output_trailer .= $_;
6722 }
6723 elsif ($prev_state == IN_COMMENT)
6724 {
6725 # If the line doesn't start with a '#', add it.
6726 # We do this because a continued comment like
6727 # # A = foo \
6728 # bar \
6729 # baz
6730 # is not portable. BSD make doesn't honor
6731 # escaped newlines in comments.
6732 s/^#?/#/;
6733 $comment .= $spacing . $_;
6734 }
6735 else # $prev_state == IN_VAR_DEF
6736 {
6737 $last_var_value .= ' '
6738 unless $last_var_value =~ /\s$/;
6739 $last_var_value .= $_;
6741 if (!/\\$/)
6742 {
6743 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6744 $last_var_type, $cond,
6745 $last_var_value, $comment,
6746 $last_where, VAR_ASIS)
6747 if $cond != FALSE;
6748 $comment = $spacing = '';
6749 }
6750 }
6751 }
6753 elsif (/$IF_PATTERN/o)
6754 {
6755 $cond = cond_stack_if ($1, $2, $where);
6756 }
6757 elsif (/$ELSE_PATTERN/o)
6758 {
6759 $cond = cond_stack_else ($1, $2, $where);
6760 }
6761 elsif (/$ENDIF_PATTERN/o)
6762 {
6763 $cond = cond_stack_endif ($1, $2, $where);
6764 }
6766 elsif (/$RULE_PATTERN/o)
6767 {
6768 # Found a rule.
6769 $prev_state = IN_RULE_DEF;
6771 # For now we have to output all definitions of user rules
6772 # and can't diagnose duplicates (see the comment in
6773 # Automake::Rule::define). So we go on and ignore the return value.
6774 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6776 check_variable_expansions ($_, $where);
6778 $output_trailer .= $comment . $spacing;
6779 my $cond = new Automake::Condition @cond_stack;
6780 $output_trailer .= $cond->subst_string;
6781 $output_trailer .= $_;
6782 $comment = $spacing = '';
6783 }
6784 elsif (/$ASSIGNMENT_PATTERN/o)
6785 {
6786 # Found a macro definition.
6787 $prev_state = IN_VAR_DEF;
6788 $last_var_name = $1;
6789 $last_var_type = $2;
6790 $last_var_value = $3;
6791 $last_where = $where->clone;
6792 if ($3 ne '' && substr ($3, -1) eq "\\")
6793 {
6794 # We preserve the '\' because otherwise the long lines
6795 # that are generated will be truncated by broken
6796 # 'sed's.
6797 $last_var_value = $3 . "\n";
6798 }
6799 # Normally we try to output variable definitions in the
6800 # same format they were input. However, POSIX compliant
6801 # systems are not required to support lines longer than
6802 # 2048 bytes (most notably, some sed implementation are
6803 # limited to 4000 bytes, and sed is used by config.status
6804 # to rewrite Makefile.in into Makefile). Moreover nobody
6805 # would really write such long lines by hand since it is
6806 # hardly maintainable. So if a line is longer that 1000
6807 # bytes (an arbitrary limit), assume it has been
6808 # automatically generated by some tools, and flatten the
6809 # variable definition. Otherwise, keep the variable as it
6810 # as been input.
6811 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6813 if (!/\\$/)
6814 {
6815 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6816 $last_var_type, $cond,
6817 $last_var_value, $comment,
6818 $last_where, $var_look)
6819 if $cond != FALSE;
6820 $comment = $spacing = '';
6821 $var_look = VAR_ASIS;
6822 }
6823 }
6824 elsif (/$INCLUDE_PATTERN/o)
6825 {
6826 my $path = $1;
6828 if ($path =~ s/^\$\(top_srcdir\)\///)
6829 {
6830 push (@include_stack, "\$\(top_srcdir\)/$path");
6831 # Distribute any included file.
6833 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6834 # otherwise OSF make will implicitly copy the included
6835 # file in the build tree during "make distdir" to satisfy
6836 # the dependency.
6837 # (subdircond2.test and subdircond3.test will fail.)
6838 push_dist_common ("\$\(top_srcdir\)/$path");
6839 }
6840 else
6841 {
6842 $path =~ s/\$\(srcdir\)\///;
6843 push (@include_stack, "\$\(srcdir\)/$path");
6844 # Always use the $(srcdir) prefix in DIST_COMMON,
6845 # otherwise OSF make will implicitly copy the included
6846 # file in the build tree during "make distdir" to satisfy
6847 # the dependency.
6848 # (subdircond2.test and subdircond3.test will fail.)
6849 push_dist_common ("\$\(srcdir\)/$path");
6850 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6851 }
6852 $where->push_context ("'$path' included from here");
6853 &read_am_file ($path, $where);
6854 $where->pop_context;
6855 }
6856 else
6857 {
6858 # This isn't an error; it is probably a continued rule.
6859 # In fact, this is what we assume.
6860 $prev_state = IN_RULE_DEF;
6861 check_variable_expansions ($_, $where);
6862 $output_trailer .= $comment . $spacing;
6863 my $cond = new Automake::Condition @cond_stack;
6864 $output_trailer .= $cond->subst_string;
6865 $output_trailer .= $_;
6866 $comment = $spacing = '';
6867 error $where, "'#' comment at start of rule is unportable"
6868 if $_ =~ /^\t\s*\#/;
6869 }
6871 $saw_bk = $new_saw_bk;
6872 $_ = $am_file->getline;
6873 }
6875 $output_trailer .= $comment;
6877 error ($where, "trailing backslash on last line")
6878 if $saw_bk;
6880 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6881 : "too many conditionals closed in include file"))
6882 if "@saved_cond_stack" ne "@cond_stack";
6883 }
6886 # define_standard_variables ()
6887 # ----------------------------
6888 # A helper for read_main_am_file which initializes configure variables
6889 # and variables from header-vars.am.
6890 sub define_standard_variables
6891 {
6892 my $saved_output_vars = $output_vars;
6893 my ($comments, undef, $rules) =
6894 file_contents_internal (1, "$libdir/am/header-vars.am",
6895 new Automake::Location);
6897 foreach my $var (sort keys %configure_vars)
6898 {
6899 &define_configure_variable ($var);
6900 }
6902 $output_vars .= $comments . $rules;
6903 }
6905 # Read main am file.
6906 sub read_main_am_file
6907 {
6908 my ($amfile) = @_;
6910 # This supports the strange variable tricks we are about to play.
6911 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
6912 if (scalar (variables) > 0);
6914 # Generate copyright header for generated Makefile.in.
6915 # We do discard the output of predefined variables, handled below.
6916 $output_vars = ("# $in_file_name generated by automake "
6917 . $VERSION . " from $am_file_name.\n");
6918 $output_vars .= '# ' . subst ('configure_input') . "\n";
6919 $output_vars .= $gen_copyright;
6921 # We want to predefine as many variables as possible. This lets
6922 # the user set them with '+=' in Makefile.am.
6923 &define_standard_variables;
6925 # Read user file, which might override some of our values.
6926 &read_am_file ($amfile, new Automake::Location);
6927 }
6931 ################################################################
6933 # $FLATTENED
6934 # &flatten ($STRING)
6935 # ------------------
6936 # Flatten the $STRING and return the result.
6937 sub flatten
6938 {
6939 $_ = shift;
6941 s/\\\n//somg;
6942 s/\s+/ /g;
6943 s/^ //;
6944 s/ $//;
6946 return $_;
6947 }
6950 # transform_token ($TOKEN, \%PAIRS, $KEY)
6951 # =======================================
6952 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6953 # (which should be ?KEY? or any of the special %% requests)..
6954 sub transform_token ($$$)
6955 {
6956 my ($token, $transform, $key) = @_;
6957 my $res = $transform->{$key};
6958 prog_error "Unknown key '$key' in '$token'" unless defined $res;
6959 return $res;
6960 }
6963 # transform ($TOKEN, \%PAIRS)
6964 # ===========================
6965 # If ($TOKEN, $VAL) is in %PAIRS:
6966 # - replaces %KEY% with $VAL,
6967 # - enables/disables ?KEY? and ?!KEY?,
6968 # - replaces %?KEY% with TRUE or FALSE.
6969 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6970 # IFTRUE / IFFALSE, as appropriate.
6971 sub transform ($$)
6972 {
6973 my ($token, $transform) = @_;
6975 # %KEY%.
6976 # Must be before the following pattern to exclude the case
6977 # when there is neither IFTRUE nor IFFALSE.
6978 if ($token =~ /^%([\w\-]+)%$/)
6979 {
6980 return transform_token ($token, $transform, $1);
6981 }
6982 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6983 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6984 {
6985 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6986 }
6987 # %?KEY%.
6988 elsif ($token =~ /^%\?([\w\-]+)%$/)
6989 {
6990 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6991 }
6992 # ?KEY? and ?!KEY?.
6993 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6994 {
6995 my $neg = ($1 eq '!') ? 1 : 0;
6996 my $val = transform_token ($token, $transform, $2);
6997 return (!!$val == $neg) ? '##%' : '';
6998 }
6999 else
7000 {
7001 prog_error "Unknown request format: $token";
7002 }
7003 }
7005 # $TEXT
7006 # preprocess_file ($MAKEFILE, [%TRANSFORM])
7007 # -----------------------------------------
7008 # Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
7009 # No extra parsing or post-processing is done (i.e., recognition of
7010 # rules declaration or of make variables definitions).
7011 sub preprocess_file ($%)
7012 {
7013 my ($file, %transform) = @_;
7015 # Complete %transform with global options.
7016 # Note that %transform goes last, so it overrides global options.
7017 %transform = ('CYGNUS' => !! option 'cygnus',
7018 'MAINTAINER-MODE'
7019 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7021 'XZ' => !! option 'dist-xz',
7022 'LZMA' => !! option 'dist-lzma',
7023 'LZIP' => !! option 'dist-lzip',
7024 'BZIP2' => !! option 'dist-bzip2',
7025 'COMPRESS' => !! option 'dist-tarZ',
7026 'GZIP' => ! option 'no-dist-gzip',
7027 'SHAR' => !! option 'dist-shar',
7028 'ZIP' => !! option 'dist-zip',
7030 'INSTALL-INFO' => ! option 'no-installinfo',
7031 'INSTALL-MAN' => ! option 'no-installman',
7032 'HAVE-MANS' => !! var ('MANS'),
7033 'CK-NEWS' => !! option 'check-news',
7035 'SUBDIRS' => !! var ('SUBDIRS'),
7036 'TOPDIR_P' => $relative_dir eq '.',
7038 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7039 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7040 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7042 'LIBTOOL' => !! var ('LIBTOOL'),
7043 'NONLIBTOOL' => 1,
7044 %transform);
7046 if (! defined ($_ = $am_file_cache{$file}))
7047 {
7048 verb "reading $file";
7049 # Swallow the whole file.
7050 my $fc_file = new Automake::XFile "< $file";
7051 my $saved_dollar_slash = $/;
7052 undef $/;
7053 $_ = $fc_file->getline;
7054 $/ = $saved_dollar_slash;
7055 $fc_file->close;
7056 # Remove ##-comments.
7057 # Besides we don't need more than two consecutive new-lines.
7058 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7059 # Remember the contents of the just-read file.
7060 $am_file_cache{$file} = $_;
7061 }
7063 # Substitute Automake template tokens.
7064 s/(?: % \?? [\w\-]+ %
7065 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7066 | \? !? [\w\-]+ \?
7067 )/transform($&, \%transform)/gex;
7068 # transform() may have added some ##%-comments to strip.
7069 # (we use '##%' instead of '##' so we can distinguish ##%##%##% from
7070 # ####### and do not remove the latter.)
7071 s/^[ \t]*(?:##%)+.*\n//gm;
7073 return $_;
7074 }
7077 # @PARAGRAPHS
7078 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7079 # ------------------------------------------
7080 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7081 # paragraphs.
7082 sub make_paragraphs ($%)
7083 {
7084 my ($file, %transform) = @_;
7085 $transform{FIRST} = !$transformed_files{$file};
7086 $transformed_files{$file} = 1;
7088 my @lines = split /(?<!\\)\n/, preprocess_file ($file, %transform);
7089 my @res;
7091 while (defined ($_ = shift @lines))
7092 {
7093 my $paragraph = $_;
7094 # If we are a rule, eat as long as we start with a tab.
7095 if (/$RULE_PATTERN/smo)
7096 {
7097 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7098 {
7099 $paragraph .= "\n$_";
7100 }
7101 unshift (@lines, $_);
7102 }
7104 # If we are a comments, eat as much comments as you can.
7105 elsif (/$COMMENT_PATTERN/smo)
7106 {
7107 while (defined ($_ = shift @lines)
7108 && $_ =~ /$COMMENT_PATTERN/smo)
7109 {
7110 $paragraph .= "\n$_";
7111 }
7112 unshift (@lines, $_);
7113 }
7115 push @res, $paragraph;
7116 }
7118 return @res;
7119 }
7123 # ($COMMENT, $VARIABLES, $RULES)
7124 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7125 # -------------------------------------------------------------
7126 # Return contents of a file from $libdir/am, automatically skipping
7127 # macros or rules which are already known. $IS_AM iff the caller is
7128 # reading an Automake file (as opposed to the user's Makefile.am).
7129 sub file_contents_internal ($$$%)
7130 {
7131 my ($is_am, $file, $where, %transform) = @_;
7133 $where->set ($file);
7135 my $result_vars = '';
7136 my $result_rules = '';
7137 my $comment = '';
7138 my $spacing = '';
7140 # The following flags are used to track rules spanning across
7141 # multiple paragraphs.
7142 my $is_rule = 0; # 1 if we are processing a rule.
7143 my $discard_rule = 0; # 1 if the current rule should not be output.
7145 # We save the conditional stack on entry, and then check to make
7146 # sure it is the same on exit. This lets us conditionally include
7147 # other files.
7148 my @saved_cond_stack = @cond_stack;
7149 my $cond = new Automake::Condition (@cond_stack);
7151 foreach (make_paragraphs ($file, %transform))
7152 {
7153 # FIXME: no line number available.
7154 $where->set ($file);
7156 # Sanity checks.
7157 error $where, "blank line following trailing backslash:\n$_"
7158 if /\\$/;
7159 error $where, "comment following trailing backslash:\n$_"
7160 if /\\#/;
7162 if (/^$/)
7163 {
7164 $is_rule = 0;
7165 # Stick empty line before the incoming macro or rule.
7166 $spacing = "\n";
7167 }
7168 elsif (/$COMMENT_PATTERN/mso)
7169 {
7170 $is_rule = 0;
7171 # Stick comments before the incoming macro or rule.
7172 $comment = "$_\n";
7173 }
7175 # Handle inclusion of other files.
7176 elsif (/$INCLUDE_PATTERN/o)
7177 {
7178 if ($cond != FALSE)
7179 {
7180 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7181 $where->push_context ("'$file' included from here");
7182 # N-ary '.=' fails.
7183 my ($com, $vars, $rules)
7184 = file_contents_internal ($is_am, $file, $where, %transform);
7185 $where->pop_context;
7186 $comment .= $com;
7187 $result_vars .= $vars;
7188 $result_rules .= $rules;
7189 }
7190 }
7192 # Handling the conditionals.
7193 elsif (/$IF_PATTERN/o)
7194 {
7195 $cond = cond_stack_if ($1, $2, $file);
7196 }
7197 elsif (/$ELSE_PATTERN/o)
7198 {
7199 $cond = cond_stack_else ($1, $2, $file);
7200 }
7201 elsif (/$ENDIF_PATTERN/o)
7202 {
7203 $cond = cond_stack_endif ($1, $2, $file);
7204 }
7206 # Handling rules.
7207 elsif (/$RULE_PATTERN/mso)
7208 {
7209 $is_rule = 1;
7210 $discard_rule = 0;
7211 # Separate relationship from optional actions: the first
7212 # `new-line tab" not preceded by backslash (continuation
7213 # line).
7214 my $paragraph = $_;
7215 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7216 my ($relationship, $actions) = ($1, $2 || '');
7218 # Separate targets from dependencies: the first colon.
7219 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7220 my ($targets, $dependencies) = ($1, $2);
7221 # Remove the escaped new lines.
7222 # I don't know why, but I have to use a tmp $flat_deps.
7223 my $flat_deps = &flatten ($dependencies);
7224 my @deps = split (' ', $flat_deps);
7226 foreach (split (' ', $targets))
7227 {
7228 # FIXME: 1. We are not robust to people defining several targets
7229 # at once, only some of them being in %dependencies. The
7230 # actions from the targets in %dependencies are usually generated
7231 # from the content of %actions, but if some targets in $targets
7232 # are not in %dependencies the ELSE branch will output
7233 # a rule for all $targets (i.e. the targets which are both
7234 # in %dependencies and $targets will have two rules).
7236 # FIXME: 2. The logic here is not able to output a
7237 # multi-paragraph rule several time (e.g. for each condition
7238 # it is defined for) because it only knows the first paragraph.
7240 # FIXME: 3. We are not robust to people defining a subset
7241 # of a previously defined "multiple-target" rule. E.g.
7242 # 'foo:' after 'foo bar:'.
7244 # Output only if not in FALSE.
7245 if (defined $dependencies{$_} && $cond != FALSE)
7246 {
7247 &depend ($_, @deps);
7248 register_action ($_, $actions);
7249 }
7250 else
7251 {
7252 # Free-lance dependency. Output the rule for all the
7253 # targets instead of one by one.
7254 my @undefined_conds =
7255 Automake::Rule::define ($targets, $file,
7256 $is_am ? RULE_AUTOMAKE : RULE_USER,
7257 $cond, $where);
7258 for my $undefined_cond (@undefined_conds)
7259 {
7260 my $condparagraph = $paragraph;
7261 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7262 $result_rules .= "$spacing$comment$condparagraph\n";
7263 }
7264 if (scalar @undefined_conds == 0)
7265 {
7266 # Remember to discard next paragraphs
7267 # if they belong to this rule.
7268 # (but see also FIXME: #2 above.)
7269 $discard_rule = 1;
7270 }
7271 $comment = $spacing = '';
7272 last;
7273 }
7274 }
7275 }
7277 elsif (/$ASSIGNMENT_PATTERN/mso)
7278 {
7279 my ($var, $type, $val) = ($1, $2, $3);
7280 error $where, "variable '$var' with trailing backslash"
7281 if /\\$/;
7283 $is_rule = 0;
7285 Automake::Variable::define ($var,
7286 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7287 $type, $cond, $val, $comment, $where,
7288 VAR_ASIS)
7289 if $cond != FALSE;
7291 $comment = $spacing = '';
7292 }
7293 else
7294 {
7295 # This isn't an error; it is probably some tokens which
7296 # configure is supposed to replace, such as '@SET-MAKE@',
7297 # or some part of a rule cut by an if/endif.
7298 if (! $cond->false && ! ($is_rule && $discard_rule))
7299 {
7300 s/^/$cond->subst_string/gme;
7301 $result_rules .= "$spacing$comment$_\n";
7302 }
7303 $comment = $spacing = '';
7304 }
7305 }
7307 error ($where, @cond_stack ?
7308 "unterminated conditionals: @cond_stack" :
7309 "too many conditionals closed in include file")
7310 if "@saved_cond_stack" ne "@cond_stack";
7312 return ($comment, $result_vars, $result_rules);
7313 }
7316 # $CONTENTS
7317 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7318 # ------------------------------------------------
7319 # Return contents of a file from $libdir/am, automatically skipping
7320 # macros or rules which are already known.
7321 sub file_contents ($$%)
7322 {
7323 my ($basename, $where, %transform) = @_;
7324 my ($comments, $variables, $rules) =
7325 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7326 %transform);
7327 return "$comments$variables$rules";
7328 }
7331 # @PREFIX
7332 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7333 # -----------------------------------------------------
7334 # Find all variable prefixes that are used for install directories. A
7335 # prefix 'zar' qualifies iff:
7336 #
7337 # * 'zardir' is a variable.
7338 # * 'zar_PRIMARY' is a variable.
7339 #
7340 # As a side effect, it looks for misspellings. It is an error to have
7341 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7342 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7343 # of the same name (with "dir" appended) exists. For instance, if the
7344 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7345 # This is to provide a little extra flexibility in those cases which
7346 # need it.
7347 sub am_primary_prefixes ($$@)
7348 {
7349 my ($primary, $can_dist, @prefixes) = @_;
7351 local $_;
7352 my %valid = map { $_ => 0 } @prefixes;
7353 $valid{'EXTRA'} = 0;
7354 foreach my $var (variables $primary)
7355 {
7356 # Automake is allowed to define variables that look like primaries
7357 # but which aren't. E.g. INSTALL_sh_DATA.
7358 # Autoconf can also define variables like INSTALL_DATA, so
7359 # ignore all configure variables (at least those which are not
7360 # redefined in Makefile.am).
7361 # FIXME: We should make sure that these variables are not
7362 # conditionally defined (or else adjust the condition below).
7363 my $def = $var->def (TRUE);
7364 next if $def && $def->owner != VAR_MAKEFILE;
7366 my $varname = $var->name;
7368 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7369 {
7370 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7371 if ($dist ne '' && ! $can_dist)
7372 {
7373 err_var ($var,
7374 "invalid variable '$varname': 'dist' is forbidden");
7375 }
7376 # Standard directories must be explicitly allowed.
7377 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7378 {
7379 err_var ($var,
7380 "'${X}dir' is not a legitimate directory " .
7381 "for '$primary'");
7382 }
7383 # A not explicitly valid directory is allowed if Xdir is defined.
7384 elsif (! defined $valid{$X} &&
7385 $var->requires_variables ("'$varname' is used", "${X}dir"))
7386 {
7387 # Nothing to do. Any error message has been output
7388 # by $var->requires_variables.
7389 }
7390 else
7391 {
7392 # Ensure all extended prefixes are actually used.
7393 $valid{"$base$dist$X"} = 1;
7394 }
7395 }
7396 else
7397 {
7398 prog_error "unexpected variable name: $varname";
7399 }
7400 }
7402 # Return only those which are actually defined.
7403 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7404 }
7407 # Handle 'where_HOW' variable magic. Does all lookups, generates
7408 # install code, and possibly generates code to define the primary
7409 # variable. The first argument is the name of the .am file to munge,
7410 # the second argument is the primary variable (e.g. HEADERS), and all
7411 # subsequent arguments are possible installation locations.
7412 #
7413 # Returns list of [$location, $value] pairs, where
7414 # $value's are the values in all where_HOW variable, and $location
7415 # there associated location (the place here their parent variables were
7416 # defined).
7417 #
7418 # FIXME: this should be rewritten to be cleaner. It should be broken
7419 # up into multiple functions.
7420 #
7421 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7422 sub am_install_var
7423 {
7424 my (@args) = @_;
7426 my $do_require = 1;
7427 my $can_dist = 0;
7428 my $default_dist = 0;
7429 while (@args)
7430 {
7431 if ($args[0] eq '-noextra')
7432 {
7433 $do_require = 0;
7434 }
7435 elsif ($args[0] eq '-candist')
7436 {
7437 $can_dist = 1;
7438 }
7439 elsif ($args[0] eq '-defaultdist')
7440 {
7441 $default_dist = 1;
7442 $can_dist = 1;
7443 }
7444 elsif ($args[0] !~ /^-/)
7445 {
7446 last;
7447 }
7448 shift (@args);
7449 }
7451 my ($file, $primary, @prefix) = @args;
7453 # Now that configure substitutions are allowed in where_HOW
7454 # variables, it is an error to actually define the primary. We
7455 # allow 'JAVA', as it is customarily used to mean the Java
7456 # interpreter. This is but one of several Java hacks. Similarly,
7457 # 'PYTHON' is customarily used to mean the Python interpreter.
7458 reject_var $primary, "'$primary' is an anachronism"
7459 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7461 # Get the prefixes which are valid and actually used.
7462 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7464 # If a primary includes a configure substitution, then the EXTRA_
7465 # form is required. Otherwise we can't properly do our job.
7466 my $require_extra;
7468 my @used = ();
7469 my @result = ();
7471 foreach my $X (@prefix)
7472 {
7473 my $nodir_name = $X;
7474 my $one_name = $X . '_' . $primary;
7475 my $one_var = var $one_name;
7477 my $strip_subdir = 1;
7478 # If subdir prefix should be preserved, do so.
7479 if ($nodir_name =~ /^nobase_/)
7480 {
7481 $strip_subdir = 0;
7482 $nodir_name =~ s/^nobase_//;
7483 }
7485 # If files should be distributed, do so.
7486 my $dist_p = 0;
7487 if ($can_dist)
7488 {
7489 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7490 || (! $default_dist && $nodir_name =~ /^dist_/));
7491 $nodir_name =~ s/^(dist|nodist)_//;
7492 }
7495 # Use the location of the currently processed variable.
7496 # We are not processing a particular condition, so pick the first
7497 # available.
7498 my $tmpcond = $one_var->conditions->one_cond;
7499 my $where = $one_var->rdef ($tmpcond)->location->clone;
7501 # Append actual contents of where_PRIMARY variable to
7502 # @result, skipping @substitutions@.
7503 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7504 {
7505 my ($loc, $value) = @$locvals;
7506 # Skip configure substitutions.
7507 if ($value =~ /^\@.*\@$/)
7508 {
7509 if ($nodir_name eq 'EXTRA')
7510 {
7511 error ($where,
7512 "'$one_name' contains configure substitution, "
7513 . "but shouldn't");
7514 }
7515 # Check here to make sure variables defined in
7516 # configure.ac do not imply that EXTRA_PRIMARY
7517 # must be defined.
7518 elsif (! defined $configure_vars{$one_name})
7519 {
7520 $require_extra = $one_name
7521 if $do_require;
7522 }
7523 }
7524 else
7525 {
7526 # Strip any $(EXEEXT) suffix the user might have added, or this
7527 # will confuse &handle_source_transform and &check_canonical_spelling.
7528 # We'll add $(EXEEXT) back later anyway.
7529 # Do it here rather than in handle_programs so the uniquifying at the
7530 # end of this function works.
7531 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7532 if $primary eq 'PROGRAMS';
7534 push (@result, $locvals);
7535 }
7536 }
7537 # A blatant hack: we rewrite each _PROGRAMS primary to include
7538 # EXEEXT.
7539 append_exeext { 1 } $one_name
7540 if $primary eq 'PROGRAMS';
7541 # "EXTRA" shouldn't be used when generating clean targets,
7542 # all, or install targets. We used to warn if EXTRA_FOO was
7543 # defined uselessly, but this was annoying.
7544 next
7545 if $nodir_name eq 'EXTRA';
7547 if ($nodir_name eq 'check')
7548 {
7549 push (@check, '$(' . $one_name . ')');
7550 }
7551 else
7552 {
7553 push (@used, '$(' . $one_name . ')');
7554 }
7556 # Is this to be installed?
7557 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7559 # If so, with install-exec? (or install-data?).
7560 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7562 my $check_options_p = $install_p && !! option 'std-options';
7564 # Use the location of the currently processed variable as context.
7565 $where->push_context ("while processing '$one_name'");
7567 # The variable containing all files to distribute.
7568 my $distvar = "\$($one_name)";
7569 $distvar = shadow_unconditionally ($one_name, $where)
7570 if ($dist_p && $one_var->has_conditional_contents);
7572 # Singular form of $PRIMARY.
7573 (my $one_primary = $primary) =~ s/S$//;
7574 $output_rules .= &file_contents ($file, $where,
7575 PRIMARY => $primary,
7576 ONE_PRIMARY => $one_primary,
7577 DIR => $X,
7578 NDIR => $nodir_name,
7579 BASE => $strip_subdir,
7581 EXEC => $exec_p,
7582 INSTALL => $install_p,
7583 DIST => $dist_p,
7584 DISTVAR => $distvar,
7585 'CK-OPTS' => $check_options_p);
7586 }
7588 # The JAVA variable is used as the name of the Java interpreter.
7589 # The PYTHON variable is used as the name of the Python interpreter.
7590 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7591 {
7592 # Define it.
7593 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7594 $output_vars .= "\n";
7595 }
7597 err_var ($require_extra,
7598 "'$require_extra' contains configure substitution,\n"
7599 . "but 'EXTRA_$primary' not defined")
7600 if ($require_extra && ! var ('EXTRA_' . $primary));
7602 # Push here because PRIMARY might be configure time determined.
7603 push (@all, '$(' . $primary . ')')
7604 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7606 # Make the result unique. This lets the user use conditionals in
7607 # a natural way, but still lets us program lazily -- we don't have
7608 # to worry about handling a particular object more than once.
7609 # We will keep only one location per object.
7610 my %result = ();
7611 for my $pair (@result)
7612 {
7613 my ($loc, $val) = @$pair;
7614 $result{$val} = $loc;
7615 }
7616 my @l = sort keys %result;
7617 return map { [$result{$_}->clone, $_] } @l;
7618 }
7621 ################################################################
7623 # Each key in this hash is the name of a directory holding a
7624 # Makefile.in. These variables are local to 'is_make_dir'.
7625 my %make_dirs = ();
7626 my $make_dirs_set = 0;
7628 sub is_make_dir
7629 {
7630 my ($dir) = @_;
7631 if (! $make_dirs_set)
7632 {
7633 foreach my $iter (@configure_input_files)
7634 {
7635 $make_dirs{dirname ($iter)} = 1;
7636 }
7637 # We also want to notice Makefile.in's.
7638 foreach my $iter (@other_input_files)
7639 {
7640 if ($iter =~ /Makefile\.in$/)
7641 {
7642 $make_dirs{dirname ($iter)} = 1;
7643 }
7644 }
7645 $make_dirs_set = 1;
7646 }
7647 return defined $make_dirs{$dir};
7648 }
7650 ################################################################
7652 # Find the aux dir. This should match the algorithm used by
7653 # ./configure. (See the Autoconf documentation for for
7654 # AC_CONFIG_AUX_DIR.)
7655 sub locate_aux_dir ()
7656 {
7657 if (! $config_aux_dir_set_in_configure_ac)
7658 {
7659 # The default auxiliary directory is the first
7660 # of ., .., or ../.. that contains install-sh.
7661 # Assume . if install-sh doesn't exist yet.
7662 for my $dir (qw (. .. ../..))
7663 {
7664 if (-f "$dir/install-sh")
7665 {
7666 $config_aux_dir = $dir;
7667 last;
7668 }
7669 }
7670 $config_aux_dir = '.' unless $config_aux_dir;
7671 }
7672 # Avoid unsightly '/.'s.
7673 $am_config_aux_dir =
7674 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7675 $am_config_aux_dir =~ s,/*$,,;
7676 }
7679 # &push_required_file ($DIR, $FILE, $FULLFILE)
7680 # --------------------------------------------------
7681 # Push the given file onto DIST_COMMON.
7682 sub push_required_file
7683 {
7684 my ($dir, $file, $fullfile) = @_;
7686 # If the file to be distributed is in the same directory of the
7687 # currently processed Makefile.am, then we want to distribute it
7688 # from this same Makefile.am.
7689 if ($dir eq $relative_dir)
7690 {
7691 push_dist_common ($file);
7692 }
7693 # This is needed to allow a construct in a non-top-level Makefile.am
7694 # to require a file in the build-aux directory (see at least the test
7695 # script 'test-driver-is-distributed.test'). This is related to the
7696 # automake bug#9546. Note that the use of $config_aux_dir instead
7697 # of $am_config_aux_dir here is deliberate and necessary.
7698 elsif ($dir eq $config_aux_dir)
7699 {
7700 push_dist_common ("$am_config_aux_dir/$file");
7701 }
7702 # FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
7703 # We probably need some refactoring of this function and its callers,
7704 # to have a more explicit and systematic handling of all the special
7705 # cases; but, since there are only two of them, this is low-priority
7706 # ATM.
7707 elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
7708 {
7709 # Avoid unsightly '/.'s.
7710 my $am_config_libobj_dir =
7711 '$(top_srcdir)' .
7712 ($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
7713 $am_config_libobj_dir =~ s|/*$||;
7714 push_dist_common ("$am_config_libobj_dir/$file");
7715 }
7716 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7717 {
7718 # If we are doing the topmost directory, and the file is in a
7719 # subdir which does not have a Makefile, then we distribute it
7720 # here.
7722 # If a required file is above the source tree, it is important
7723 # to prefix it with '$(srcdir)' so that no VPATH search is
7724 # performed. Otherwise problems occur with Make implementations
7725 # that rewrite and simplify rules whose dependencies are found in a
7726 # VPATH location. Here is an example with OSF1/Tru64 Make.
7727 #
7728 # % cat Makefile
7729 # VPATH = sub
7730 # distdir: ../a
7731 # echo ../a
7732 # % ls
7733 # Makefile a
7734 # % make
7735 # echo a
7736 # a
7737 #
7738 # Dependency '../a' was found in 'sub/../a', but this make
7739 # implementation simplified it as 'a'. (Note that the sub/
7740 # directory does not even exist.)
7741 #
7742 # This kind of VPATH rewriting seems hard to cancel. The
7743 # distdir.am hack against VPATH rewriting works only when no
7744 # simplification is done, i.e., for dependencies which are in
7745 # subdirectories, not in enclosing directories. Hence, in
7746 # the latter case we use a full path to make sure no VPATH
7747 # search occurs.
7748 $fullfile = '$(srcdir)/' . $fullfile
7749 if $dir =~ m,^\.\.(?:$|/),;
7751 push_dist_common ($fullfile);
7752 }
7753 else
7754 {
7755 prog_error "a Makefile in relative directory $relative_dir " .
7756 "can't add files in directory $dir to DIST_COMMON";
7757 }
7758 }
7761 # If a file name appears as a key in this hash, then it has already
7762 # been checked for. This allows us not to report the same error more
7763 # than once.
7764 my %required_file_not_found = ();
7766 # &required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
7767 # --------------------------------------------------------
7768 # Verify that the file must exist in $DIRECTORY, or install it.
7769 sub required_file_check_or_copy ($$$)
7770 {
7771 my ($where, $dir, $file) = @_;
7773 my $fullfile = "$dir/$file";
7774 my $found_it = 0;
7775 my $dangling_sym = 0;
7777 if (-l $fullfile && ! -f $fullfile)
7778 {
7779 $dangling_sym = 1;
7780 }
7781 elsif (dir_has_case_matching_file ($dir, $file))
7782 {
7783 $found_it = 1;
7784 }
7786 # '--force-missing' only has an effect if '--add-missing' is
7787 # specified.
7788 return
7789 if $found_it && (! $add_missing || ! $force_missing);
7791 # If we've already looked for it, we're done. You might
7792 # wonder why we don't do this before searching for the
7793 # file. If we do that, then something like
7794 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7795 # DIST_COMMON.
7796 if (! $found_it)
7797 {
7798 return if defined $required_file_not_found{$fullfile};
7799 $required_file_not_found{$fullfile} = 1;
7800 }
7801 if ($dangling_sym && $add_missing)
7802 {
7803 unlink ($fullfile);
7804 }
7806 my $trailer = '';
7807 my $trailer2 = '';
7808 my $suppress = 0;
7810 # Only install missing files according to our desired
7811 # strictness level.
7812 my $message = "required file '$fullfile' not found";
7813 if ($add_missing)
7814 {
7815 if (-f "$libdir/$file")
7816 {
7817 $suppress = 1;
7819 # Install the missing file. Symlink if we
7820 # can, copy if we must. Note: delete the file
7821 # first, in case it is a dangling symlink.
7822 $message = "installing '$fullfile'";
7824 # The license file should not be volatile.
7825 if ($file eq "COPYING")
7826 {
7827 $message .= " using GNU General Public License v3 file";
7828 $trailer2 = "\n Consider adding the COPYING file"
7829 . " to the version control system"
7830 . "\n for your code, to avoid questions"
7831 . " about which license your project uses";
7832 }
7834 # Windows Perl will hang if we try to delete a
7835 # file that doesn't exist.
7836 unlink ($fullfile) if -f $fullfile;
7837 if ($symlink_exists && ! $copy_missing)
7838 {
7839 if (! symlink ("$libdir/$file", $fullfile)
7840 || ! -e $fullfile)
7841 {
7842 $suppress = 0;
7843 $trailer = "; error while making link: $!";
7844 }
7845 }
7846 elsif (system ('cp', "$libdir/$file", $fullfile))
7847 {
7848 $suppress = 0;
7849 $trailer = "\n error while copying";
7850 }
7851 set_dir_cache_file ($dir, $file);
7852 }
7853 }
7854 else
7855 {
7856 $trailer = "\n 'automake --add-missing' can install '$file'"
7857 if -f "$libdir/$file";
7858 }
7860 # If --force-missing was specified, and we have
7861 # actually found the file, then do nothing.
7862 return
7863 if $found_it && $force_missing;
7865 # If we couldn't install the file, but it is a target in
7866 # the Makefile, don't print anything. This allows files
7867 # like README, AUTHORS, or THANKS to be generated.
7868 return
7869 if !$suppress && rule $file;
7871 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7872 }
7875 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
7876 # ----------------------------------------------------------------------
7877 # Verify that the file must exist in $DIRECTORY, or install it.
7878 # $MYSTRICT is the strictness level at which this file becomes required.
7879 # Worker threads may queue up the action to be serialized by the master,
7880 # if $QUEUE is true
7881 sub require_file_internal ($$$@)
7882 {
7883 my ($where, $mystrict, $dir, $queue, @files) = @_;
7885 return
7886 unless $strictness >= $mystrict;
7888 foreach my $file (@files)
7889 {
7890 push_required_file ($dir, $file, "$dir/$file");
7891 if ($queue)
7892 {
7893 queue_required_file_check_or_copy ($required_conf_file_queue,
7894 QUEUE_CONF_FILE, $relative_dir,
7895 $where, $mystrict, @files);
7896 }
7897 else
7898 {
7899 required_file_check_or_copy ($where, $dir, $file);
7900 }
7901 }
7902 }
7904 # &require_file ($WHERE, $MYSTRICT, @FILES)
7905 # -----------------------------------------
7906 sub require_file ($$@)
7907 {
7908 my ($where, $mystrict, @files) = @_;
7909 require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
7910 }
7912 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7913 # -----------------------------------------------------------
7914 sub require_file_with_macro ($$$@)
7915 {
7916 my ($cond, $macro, $mystrict, @files) = @_;
7917 $macro = rvar ($macro) unless ref $macro;
7918 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7919 }
7921 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7922 # ----------------------------------------------------------------
7923 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7924 # must be in that directory. Otherwise expect it in the current directory.
7925 sub require_libsource_with_macro ($$$@)
7926 {
7927 my ($cond, $macro, $mystrict, @files) = @_;
7928 $macro = rvar ($macro) unless ref $macro;
7929 if ($config_libobj_dir)
7930 {
7931 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7932 $config_libobj_dir, 0, @files);
7933 }
7934 else
7935 {
7936 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7937 }
7938 }
7940 # &queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
7941 # $MYSTRICT, @FILES)
7942 # ---------------------------------------------------------------
7943 sub queue_required_file_check_or_copy ($$$$@)
7944 {
7945 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7946 my @serial_loc;
7947 if (ref $where)
7948 {
7949 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7950 }
7951 else
7952 {
7953 @serial_loc = (QUEUE_STRING, $where);
7954 }
7955 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7956 }
7958 # &require_queued_file_check_or_copy ($QUEUE)
7959 # -------------------------------------------
7960 sub require_queued_file_check_or_copy ($)
7961 {
7962 my ($queue) = @_;
7963 my $where;
7964 my $dir = $queue->dequeue ();
7965 my $loc_key = $queue->dequeue ();
7966 if ($loc_key eq QUEUE_LOCATION)
7967 {
7968 $where = Automake::Location::deserialize ($queue);
7969 }
7970 elsif ($loc_key eq QUEUE_STRING)
7971 {
7972 $where = $queue->dequeue ();
7973 }
7974 else
7975 {
7976 prog_error "unexpected key $loc_key";
7977 }
7978 my $mystrict = $queue->dequeue ();
7979 my $nfiles = $queue->dequeue ();
7980 my @files;
7981 push @files, $queue->dequeue ()
7982 foreach (1 .. $nfiles);
7983 return
7984 unless $strictness >= $mystrict;
7985 foreach my $file (@files)
7986 {
7987 required_file_check_or_copy ($where, $config_aux_dir, $file);
7988 }
7989 }
7991 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7992 # ----------------------------------------------
7993 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7994 sub require_conf_file ($$@)
7995 {
7996 my ($where, $mystrict, @files) = @_;
7997 my $queue = defined $required_conf_file_queue ? 1 : 0;
7998 require_file_internal ($where, $mystrict, $config_aux_dir,
7999 $queue, @files);
8000 }
8003 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8004 # ----------------------------------------------------------------
8005 sub require_conf_file_with_macro ($$$@)
8006 {
8007 my ($cond, $macro, $mystrict, @files) = @_;
8008 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8009 $mystrict, @files);
8010 }
8012 ################################################################
8014 # &require_build_directory ($DIRECTORY)
8015 # -------------------------------------
8016 # Emit rules to create $DIRECTORY if needed, and return
8017 # the file that any target requiring this directory should be made
8018 # dependent upon.
8019 # We don't want to emit the rule twice, and want to reuse it
8020 # for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
8021 sub require_build_directory ($)
8022 {
8023 my $directory = shift;
8025 return $directory_map{$directory} if exists $directory_map{$directory};
8027 my $cdir = File::Spec->canonpath ($directory);
8029 if (exists $directory_map{$cdir})
8030 {
8031 my $stamp = $directory_map{$cdir};
8032 $directory_map{$directory} = $stamp;
8033 return $stamp;
8034 }
8036 my $dirstamp = "$cdir/\$(am__dirstamp)";
8038 $directory_map{$directory} = $dirstamp;
8039 $directory_map{$cdir} = $dirstamp;
8041 # Set a variable for the dirstamp basename.
8042 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8043 '$(am__leading_dot)dirstamp');
8045 # Directory must be removed by 'make distclean'.
8046 $clean_files{$dirstamp} = DIST_CLEAN;
8048 $output_rules .= ("$dirstamp:\n"
8049 . "\t\@\$(MKDIR_P) $directory\n"
8050 . "\t\@: > $dirstamp\n");
8052 return $dirstamp;
8053 }
8055 # &require_build_directory_maybe ($FILE)
8056 # --------------------------------------
8057 # If $FILE lies in a subdirectory, emit a rule to create this
8058 # directory and return the file that $FILE should be made
8059 # dependent upon. Otherwise, just return the empty string.
8060 sub require_build_directory_maybe ($)
8061 {
8062 my $file = shift;
8063 my $directory = dirname ($file);
8065 if ($directory ne '.')
8066 {
8067 return require_build_directory ($directory);
8068 }
8069 else
8070 {
8071 return '';
8072 }
8073 }
8075 ################################################################
8077 # Push a list of files onto dist_common.
8078 sub push_dist_common
8079 {
8080 prog_error "push_dist_common run after handle_dist"
8081 if $handle_dist_run;
8082 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8083 '', INTERNAL, VAR_PRETTY);
8084 }
8087 ################################################################
8089 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8090 # ----------------------------------------------
8091 # Generate a Makefile.in given the name of the corresponding Makefile and
8092 # the name of the file output by config.status.
8093 sub generate_makefile ($$)
8094 {
8095 my ($makefile_am, $makefile_in) = @_;
8097 # Reset all the Makefile.am related variables.
8098 initialize_per_input;
8100 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8101 # warnings for this file. So hold any warning issued before
8102 # we have processed AUTOMAKE_OPTIONS.
8103 buffer_messages ('warning');
8105 # Name of input file ("Makefile.am") and output file
8106 # ("Makefile.in"). These have no directory components.
8107 $am_file_name = basename ($makefile_am);
8108 $in_file_name = basename ($makefile_in);
8110 # $OUTPUT is encoded. If it contains a ":" then the first element
8111 # is the real output file, and all remaining elements are input
8112 # files. We don't scan or otherwise deal with these input files,
8113 # other than to mark them as dependencies. See
8114 # &scan_autoconf_files for details.
8115 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8117 $relative_dir = dirname ($makefile);
8118 $am_relative_dir = dirname ($makefile_am);
8119 $topsrcdir = backname ($relative_dir);
8121 read_main_am_file ($makefile_am);
8122 if (handle_options)
8123 {
8124 # Process buffered warnings.
8125 flush_messages;
8126 # Fatal error. Just return, so we can continue with next file.
8127 return;
8128 }
8129 # Process buffered warnings.
8130 flush_messages;
8132 # There are a few install-related variables that you should not define.
8133 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8134 {
8135 my $v = var $var;
8136 if ($v)
8137 {
8138 my $def = $v->def (TRUE);
8139 prog_error "$var not defined in condition TRUE"
8140 unless $def;
8141 reject_var $var, "'$var' should not be defined"
8142 if $def->owner != VAR_AUTOMAKE;
8143 }
8144 }
8146 # Catch some obsolete variables.
8147 msg_var ('obsolete', 'INCLUDES',
8148 "'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
8149 if var ('INCLUDES');
8151 # Must do this after reading .am file.
8152 define_variable ('subdir', $relative_dir, INTERNAL);
8154 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8155 # recursive rules are enabled.
8156 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8157 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8159 # Check first, because we might modify some state.
8160 check_cygnus;
8161 check_gnu_standards;
8162 check_gnits_standards;
8164 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8165 handle_gettext;
8166 handle_libraries;
8167 handle_ltlibraries;
8168 handle_programs;
8169 handle_scripts;
8171 handle_silent;
8173 # These must be run after all the sources are scanned. They
8174 # use variables defined by &handle_libraries, &handle_ltlibraries,
8175 # or &handle_programs.
8176 handle_compile;
8177 handle_languages;
8178 handle_libtool;
8180 # Variables used by distdir.am and tags.am.
8181 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8182 if (! option 'no-dist')
8183 {
8184 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8185 }
8187 handle_texinfo;
8188 handle_emacs_lisp;
8189 handle_python;
8190 handle_java;
8191 handle_man_pages;
8192 handle_data;
8193 handle_headers;
8194 handle_subdirs;
8195 handle_tags;
8196 handle_minor_options;
8197 # Must come after handle_programs so that %known_programs is up-to-date.
8198 handle_tests;
8200 # This must come after most other rules.
8201 handle_dist;
8203 handle_footer;
8204 do_check_merge_target;
8205 handle_all ($makefile);
8207 # FIXME: Gross!
8208 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8209 {
8210 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8211 }
8212 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8213 {
8214 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8215 }
8217 handle_install;
8218 handle_clean ($makefile);
8219 handle_factored_dependencies;
8221 # Comes last, because all the above procedures may have
8222 # defined or overridden variables.
8223 $output_vars .= output_variables;
8225 check_typos;
8227 if ($exit_code != 0)
8228 {
8229 verb "not writing $makefile_in because of earlier errors";
8230 return;
8231 }
8233 mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
8235 # We make sure that 'all:' is the first target.
8236 my $output =
8237 "$output_vars$output_all$output_header$output_rules$output_trailer";
8239 # Decide whether we must update the output file or not.
8240 # We have to update in the following situations.
8241 # * $force_generation is set.
8242 # * any of the output dependencies is younger than the output
8243 # * the contents of the output is different (this can happen
8244 # if the project has been populated with a file listed in
8245 # @common_files since the last run).
8246 # Output's dependencies are split in two sets:
8247 # * dependencies which are also configure dependencies
8248 # These do not change between each Makefile.am
8249 # * other dependencies, specific to the Makefile.am being processed
8250 # (such as the Makefile.am itself, or any Makefile fragment
8251 # it includes).
8252 my $timestamp = mtime $makefile_in;
8253 if (! $force_generation
8254 && $configure_deps_greatest_timestamp < $timestamp
8255 && $output_deps_greatest_timestamp < $timestamp
8256 && $output eq contents ($makefile_in))
8257 {
8258 verb "$makefile_in unchanged";
8259 # No need to update.
8260 return;
8261 }
8263 if (-e $makefile_in)
8264 {
8265 unlink ($makefile_in)
8266 or fatal "cannot remove $makefile_in: $!";
8267 }
8269 my $gm_file = new Automake::XFile "> $makefile_in";
8270 verb "creating $makefile_in";
8271 print $gm_file $output;
8272 }
8274 ################################################################
8279 ################################################################
8281 # Helper function for usage().
8282 sub print_autodist_files (@)
8283 {
8284 my @lcomm = sort (&uniq (@_));
8286 my @four;
8287 format USAGE_FORMAT =
8288 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8289 $four[0], $four[1], $four[2], $four[3]
8290 .
8291 local $~ = "USAGE_FORMAT";
8293 my $cols = 4;
8294 my $rows = int(@lcomm / $cols);
8295 my $rest = @lcomm % $cols;
8297 if ($rest)
8298 {
8299 $rows++;
8300 }
8301 else
8302 {
8303 $rest = $cols;
8304 }
8306 for (my $y = 0; $y < $rows; $y++)
8307 {
8308 @four = ("", "", "", "");
8309 for (my $x = 0; $x < $cols; $x++)
8310 {
8311 last if $y + 1 == $rows && $x == $rest;
8313 my $idx = (($x > $rest)
8314 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8315 : ($rows * $x));
8317 $idx += $y;
8318 $four[$x] = $lcomm[$idx];
8319 }
8320 write;
8321 }
8322 }
8325 # Print usage information.
8326 sub usage ()
8327 {
8328 print "Usage: $0 [OPTION]... [Makefile]...
8330 Generate Makefile.in for configure from Makefile.am.
8332 Operation modes:
8333 --help print this help, then exit
8334 --version print version number, then exit
8335 -v, --verbose verbosely list files processed
8336 --no-force only update Makefile.in's that are out of date
8337 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8339 Dependency tracking:
8340 -i, --ignore-deps disable dependency tracking code
8341 --include-deps enable dependency tracking code
8343 Flavors:
8344 --cygnus assume program is part of Cygnus-style tree
8345 --foreign set strictness to foreign
8346 --gnits set strictness to gnits
8347 --gnu set strictness to gnu
8349 Library files:
8350 -a, --add-missing add missing standard files to package
8351 --libdir=DIR set directory storing library files
8352 --print-libdir print directory storing library files
8353 -c, --copy with -a, copy missing files (default is symlink)
8354 -f, --force-missing force update of standard files
8356 ";
8357 Automake::ChannelDefs::usage;
8359 print "\nFiles automatically distributed if found " .
8360 "(always):\n";
8361 print_autodist_files @common_files;
8362 print "\nFiles automatically distributed if found " .
8363 "(under certain conditions):\n";
8364 print_autodist_files @common_sometimes;
8366 print '
8367 Report bugs to <@PACKAGE_BUGREPORT@>.
8368 GNU Automake home page: <@PACKAGE_URL@>.
8369 General help using GNU software: <http://www.gnu.org/gethelp/>.
8370 ';
8372 # --help always returns 0 per GNU standards.
8373 exit 0;
8374 }
8377 # &version ()
8378 # -----------
8379 # Print version information
8380 sub version ()
8381 {
8382 print <<EOF;
8383 automake (GNU $PACKAGE) $VERSION
8384 Copyright (C) $RELEASE_YEAR Free Software Foundation, Inc.
8385 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8386 This is free software: you are free to change and redistribute it.
8387 There is NO WARRANTY, to the extent permitted by law.
8389 Written by Tom Tromey <tromey\@redhat.com>
8390 and Alexandre Duret-Lutz <adl\@gnu.org>.
8391 EOF
8392 # --version always returns 0 per GNU standards.
8393 exit 0;
8394 }
8396 ################################################################
8398 # Parse command line.
8399 sub parse_arguments ()
8400 {
8401 my $strict = 'gnu';
8402 my $cygnus = 0;
8403 my $ignore_deps = 0;
8404 my @warnings = ();
8406 my %cli_options =
8407 (
8408 'version' => \&version,
8409 'help' => \&usage,
8410 'libdir=s' => \$libdir,
8411 'print-libdir' => sub { print "$libdir\n"; exit 0; },
8412 'gnu' => sub { $strict = 'gnu'; },
8413 'gnits' => sub { $strict = 'gnits'; },
8414 'foreign' => sub { $strict = 'foreign'; },
8415 'cygnus' => \$cygnus,
8416 'include-deps' => sub { $ignore_deps = 0; },
8417 'i|ignore-deps' => sub { $ignore_deps = 1; },
8418 'no-force' => sub { $force_generation = 0; },
8419 'f|force-missing' => \$force_missing,
8420 'a|add-missing' => \$add_missing,
8421 'c|copy' => \$copy_missing,
8422 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8423 'W|warnings=s' => \@warnings,
8424 );
8426 use Automake::Getopt ();
8427 Automake::Getopt::parse_options %cli_options;
8429 set_strictness ($strict);
8430 my $cli_where = new Automake::Location;
8431 set_global_option ('cygnus', $cli_where) if $cygnus;
8432 set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
8433 for my $warning (@warnings)
8434 {
8435 &parse_warnings ('-W', $warning);
8436 }
8438 return unless @ARGV;
8440 my $errspec = 0;
8441 foreach my $arg (@ARGV)
8442 {
8443 fatal ("empty argument\nTry '$0 --help' for more information")
8444 if ($arg eq '');
8446 # Handle $local:$input syntax.
8447 my ($local, @rest) = split (/:/, $arg);
8448 @rest = ("$local.in",) unless @rest;
8449 my $input = locate_am @rest;
8450 if ($input)
8451 {
8452 push @input_files, $input;
8453 $output_files{$input} = join (':', ($local, @rest));
8454 }
8455 else
8456 {
8457 error "no Automake input file found for '$arg'";
8458 $errspec = 1;
8459 }
8460 }
8461 fatal "no input file found among supplied arguments"
8462 if $errspec && ! @input_files;
8463 }
8466 # handle_makefile ($MAKEFILE_IN)
8467 # ------------------------------
8468 # Deal with $MAKEFILE_IN.
8469 sub handle_makefile ($)
8470 {
8471 my ($file) = @_;
8472 ($am_file = $file) =~ s/\.in$//;
8473 if (! -f ($am_file . '.am'))
8474 {
8475 error "'$am_file.am' does not exist";
8476 }
8477 else
8478 {
8479 # Any warning setting now local to this Makefile.am.
8480 dup_channel_setup;
8482 generate_makefile ($am_file . '.am', $file);
8484 # Back out any warning setting.
8485 drop_channel_setup;
8486 }
8487 }
8489 # handle_makefiles_serial ()
8490 # --------------------------
8491 # Deal with all makefiles, without threads.
8492 sub handle_makefiles_serial ()
8493 {
8494 foreach my $file (@input_files)
8495 {
8496 handle_makefile ($file);
8497 }
8498 }
8500 # get_number_of_threads ()
8501 # ------------------------
8502 # Logic for deciding how many worker threads to use.
8503 sub get_number_of_threads
8504 {
8505 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8507 $nthreads = 0
8508 unless $nthreads =~ /^[0-9]+$/;
8510 # It doesn't make sense to use more threads than makefiles,
8511 my $max_threads = @input_files;
8513 if ($nthreads > $max_threads)
8514 {
8515 $nthreads = $max_threads;
8516 }
8517 return $nthreads;
8518 }
8520 # handle_makefiles_threaded ($NTHREADS)
8521 # -------------------------------------
8522 # Deal with all makefiles, using threads. The general strategy is to
8523 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8524 # worker threads push back everything that needs serialization:
8525 # * warning and (normal) error messages, for stable stderr output
8526 # order and content (avoiding duplicates, for example),
8527 # * races when installing aux files (and respective messages),
8528 # * races when collecting aux files for distribution.
8529 #
8530 # The latter requires that the makefile that deals with the aux dir
8531 # files be handled last, done by the master thread.
8532 sub handle_makefiles_threaded ($)
8533 {
8534 my ($nthreads) = @_;
8536 # The file queue distributes all makefiles, the message queues
8537 # collect all serializations needed for respective files.
8538 my $file_queue = Thread::Queue->new;
8539 my %msg_queues;
8540 foreach my $file (@input_files)
8541 {
8542 $msg_queues{$file} = Thread::Queue->new;
8543 }
8545 verb "spawning $nthreads worker threads";
8546 my @threads = (1 .. $nthreads);
8547 foreach my $t (@threads)
8548 {
8549 $t = threads->new (sub
8550 {
8551 while (my $file = $file_queue->dequeue)
8552 {
8553 verb "handling $file";
8554 my $queue = $msg_queues{$file};
8555 setup_channel_queue ($queue, QUEUE_MESSAGE);
8556 $required_conf_file_queue = $queue;
8557 handle_makefile ($file);
8558 $queue->enqueue (undef);
8559 setup_channel_queue (undef, undef);
8560 $required_conf_file_queue = undef;
8561 }
8562 return $exit_code;
8563 });
8564 }
8566 # Queue all makefiles.
8567 verb "queuing " . @input_files . " input files";
8568 $file_queue->enqueue (@input_files, (undef) x @threads);
8570 # Collect and process serializations.
8571 foreach my $file (@input_files)
8572 {
8573 verb "dequeuing messages for " . $file;
8574 reset_local_duplicates ();
8575 my $queue = $msg_queues{$file};
8576 while (my $key = $queue->dequeue)
8577 {
8578 if ($key eq QUEUE_MESSAGE)
8579 {
8580 pop_channel_queue ($queue);
8581 }
8582 elsif ($key eq QUEUE_CONF_FILE)
8583 {
8584 require_queued_file_check_or_copy ($queue);
8585 }
8586 else
8587 {
8588 prog_error "unexpected key $key";
8589 }
8590 }
8591 }
8593 foreach my $t (@threads)
8594 {
8595 my @exit_thread = $t->join;
8596 $exit_code = $exit_thread[0]
8597 if ($exit_thread[0] > $exit_code);
8598 }
8599 }
8601 ################################################################
8603 # Parse the WARNINGS environment variable.
8604 parse_WARNINGS;
8606 # Parse command line.
8607 parse_arguments;
8609 $configure_ac = require_configure_ac;
8611 # Do configure.ac scan only once.
8612 scan_autoconf_files;
8614 if (! @input_files)
8615 {
8616 my $msg = '';
8617 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8618 if -f 'Makefile.am';
8619 fatal ("no 'Makefile.am' found for any configure output$msg");
8620 }
8622 my $nthreads = get_number_of_threads ();
8624 if ($perl_threads && $nthreads >= 1)
8625 {
8626 handle_makefiles_threaded ($nthreads);
8627 }
8628 else
8629 {
8630 handle_makefiles_serial ();
8631 }
8633 exit $exit_code;
8636 ### Setup "GNU" style for perl-mode and cperl-mode.
8637 ## Local Variables:
8638 ## perl-indent-level: 2
8639 ## perl-continued-statement-offset: 2
8640 ## perl-continued-brace-offset: 0
8641 ## perl-brace-offset: 0
8642 ## perl-brace-imaginary-offset: 0
8643 ## perl-label-offset: -2
8644 ## cperl-indent-level: 2
8645 ## cperl-brace-offset: 0
8646 ## cperl-continued-brace-offset: 0
8647 ## cperl-label-offset: -2
8648 ## cperl-extra-newline-before-brace: t
8649 ## cperl-merge-trailing-else: nil
8650 ## cperl-continued-statement-offset: 2
8651 ## End: