| blob | cdbb820b28df858df4ffa2301508f5951e3bd663 |
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, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free
11 # Software Foundation, Inc.
13 # This program is free software; you can redistribute it and/or modify
14 # it under the terms of the GNU General Public License as published by
15 # the Free Software Foundation; either version 2, or (at your option)
16 # any later version.
18 # This program is distributed in the hope that it will be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 # GNU General Public License for more details.
23 # You should have received a copy of the GNU General Public License
24 # along with this program. If not, see <http://www.gnu.org/licenses/>.
26 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
27 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
28 # Alexandre Duret-Lutz <adl@gnu.org>.
30 package Language;
32 BEGIN
33 {
34 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
35 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the `if DJGPP' guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
45 }
47 use Automake::Struct;
48 struct (# Short name of the language (c, f77...).
49 'name' => "\$",
50 # Nice name of the language (C, Fortran 77...).
51 'Name' => "\$",
53 # List of configure variables which must be defined.
54 'config_vars' => '@',
56 'ansi' => "\$",
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
60 'pure' => "\$",
62 'autodep' => "\$",
64 # Name of the compiling variable (COMPILE).
65 'compiler' => "\$",
66 # Content of the compiling variable.
67 'compile' => "\$",
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
70 'extensions' => '@',
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
74 'output_extensions' => "\$",
75 # A list of flag variables used in 'compile'.
76 # (defaults to [])
77 'flags' => "@",
79 # Any tag to pass to libtool while compiling.
80 'libtool_tag' => "\$",
82 # The file to use when generating rules for this language.
83 # The default is 'depend2'.
84 'rule_file' => "\$",
86 # Name of the linking variable (LINK).
87 'linker' => "\$",
88 # Content of the linking variable.
89 'link' => "\$",
91 # Name of the compiler variable (CC).
92 'ccer' => "\$",
94 # Name of the linker variable (LD).
95 'lder' => "\$",
96 # Content of the linker variable ($(CC)).
97 'ld' => "\$",
99 # Flag to specify the output file (-o).
100 'output_flag' => "\$",
101 '_finish' => "\$",
103 # This is a subroutine which is called whenever we finally
104 # determine the context in which a source file will be
105 # compiled.
106 '_target_hook' => "\$",
108 # If TRUE, nodist_ sources will be compiled using specific rules
109 # (i.e. not inference rules). The default is FALSE.
110 'nodist_specific' => "\$");
113 sub finish ($)
114 {
115 my ($self) = @_;
116 if (defined $self->_finish)
117 {
118 &{$self->_finish} (@_);
119 }
120 }
122 sub target_hook ($$$$%)
123 {
124 my ($self) = @_;
125 if (defined $self->_target_hook)
126 {
127 &{$self->_target_hook} (@_);
128 }
129 }
131 package Automake;
133 use strict;
134 use Automake::Config;
135 BEGIN
136 {
137 if ($perl_threads)
138 {
139 require threads;
140 import threads;
141 require Thread::Queue;
142 import Thread::Queue;
143 }
144 }
145 use Automake::General;
146 use Automake::XFile;
147 use Automake::Channels;
148 use Automake::ChannelDefs;
149 use Automake::Configure_ac;
150 use Automake::FileUtils;
151 use Automake::Location;
152 use Automake::Condition qw/TRUE FALSE/;
153 use Automake::DisjConditions;
154 use Automake::Options;
155 use Automake::Version;
156 use Automake::Variable;
157 use Automake::VarDef;
158 use Automake::Rule;
159 use Automake::RuleDef;
160 use Automake::Wrap 'makefile_wrap';
161 use File::Basename;
162 use File::Spec;
163 use Carp;
165 ## ----------- ##
166 ## Constants. ##
167 ## ----------- ##
169 # Some regular expressions. One reason to put them here is that it
170 # makes indentation work better in Emacs.
172 # Writing singled-quoted-$-terminated regexes is a pain because
173 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
174 # by a closing quote. Letting perl-mode think the quote is not closed
175 # leads to all sort of misindentations. On the other hand, defining
176 # regexes as double-quoted strings is far less readable. So usually
177 # we will write:
178 #
179 # $REGEX = '^regex_value' . "\$";
181 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
182 my $WHITE_PATTERN = '^\s*' . "\$";
183 my $COMMENT_PATTERN = '^#';
184 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
185 # A rule has three parts: a list of targets, a list of dependencies,
186 # and optionally actions.
187 my $RULE_PATTERN =
188 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
190 # Only recognize leading spaces, not leading tabs. If we recognize
191 # leading tabs here then we need to make the reader smarter, because
192 # otherwise it will think rules like `foo=bar; \' are errors.
193 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
194 # This pattern recognizes a Gnits version id and sets $1 if the
195 # release is an alpha release. We also allow a suffix which can be
196 # used to extend the version number with a "fork" identifier.
197 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
199 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
200 my $ELSE_PATTERN =
201 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
202 my $ENDIF_PATTERN =
203 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
204 my $PATH_PATTERN = '(\w|[+/.-])+';
205 # This will pass through anything not of the prescribed form.
206 my $INCLUDE_PATTERN = ('^include\s+'
207 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
208 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
209 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
211 # Match `-d' as a command-line argument in a string.
212 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
213 # Directories installed during 'install-exec' phase.
214 my $EXEC_DIR_PATTERN =
215 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
217 # Values for AC_CANONICAL_*
218 use constant AC_CANONICAL_BUILD => 1;
219 use constant AC_CANONICAL_HOST => 2;
220 use constant AC_CANONICAL_TARGET => 3;
222 # Values indicating when something should be cleaned.
223 use constant MOSTLY_CLEAN => 0;
224 use constant CLEAN => 1;
225 use constant DIST_CLEAN => 2;
226 use constant MAINTAINER_CLEAN => 3;
228 # Libtool files.
229 my @libtool_files = qw(ltmain.sh config.guess config.sub);
230 # ltconfig appears here for compatibility with old versions of libtool.
231 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
233 # Commonly found files we look for and automatically include in
234 # DISTFILES.
235 my @common_files =
236 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
237 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
238 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
239 depcomp elisp-comp install-sh libversion.in mdate-sh missing
240 mkinstalldirs py-compile texinfo.tex ylwrap),
241 @libtool_files, @libtool_sometimes);
243 # Commonly used files we auto-include, but only sometimes. This list
244 # is used for the --help output only.
245 my @common_sometimes =
246 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
247 configure.ac configure.in stamp-vti);
249 # Standard directories from the GNU Coding Standards, and additional
250 # pkg* directories from Automake. Stored in a hash for fast member check.
251 my %standard_prefix =
252 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
253 lib libexec lisp locale localstate man man1 man2
254 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
255 pkgdata pkginclude pkglib pkglibexec ps sbin
256 sharedstate sysconf));
258 # Copyright on generated Makefile.ins.
259 my $gen_copyright = "\
260 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
261 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
262 # Foundation, Inc.
263 # This Makefile.in is free software; the Free Software Foundation
264 # gives unlimited permission to copy and/or distribute it,
265 # with or without modifications, as long as this notice is preserved.
267 # This program is distributed in the hope that it will be useful,
268 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
269 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
270 # PARTICULAR PURPOSE.
271 ";
273 # These constants are returned by the lang_*_rewrite functions.
274 # LANG_SUBDIR means that the resulting object file should be in a
275 # subdir if the source file is. In this case the file name cannot
276 # have `..' components.
277 use constant LANG_IGNORE => 0;
278 use constant LANG_PROCESS => 1;
279 use constant LANG_SUBDIR => 2;
281 # These are used when keeping track of whether an object can be built
282 # by two different paths.
283 use constant COMPILE_LIBTOOL => 1;
284 use constant COMPILE_ORDINARY => 2;
286 # We can't always associate a location to a variable or a rule,
287 # when it's defined by Automake. We use INTERNAL in this case.
288 use constant INTERNAL => new Automake::Location;
290 # Serialization keys for message queues.
291 use constant QUEUE_MESSAGE => "msg";
292 use constant QUEUE_CONF_FILE => "conf file";
293 use constant QUEUE_LOCATION => "location";
294 use constant QUEUE_STRING => "string";
295 \f
297 ## ---------------------------------- ##
298 ## Variables related to the options. ##
299 ## ---------------------------------- ##
301 # TRUE if we should always generate Makefile.in.
302 my $force_generation = 1;
304 # From the Perl manual.
305 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
307 # TRUE if missing standard files should be installed.
308 my $add_missing = 0;
310 # TRUE if we should copy missing files; otherwise symlink if possible.
311 my $copy_missing = 0;
313 # TRUE if we should always update files that we know about.
314 my $force_missing = 0;
317 ## ---------------------------------------- ##
318 ## Variables filled during files scanning. ##
319 ## ---------------------------------------- ##
321 # Name of the configure.ac file.
322 my $configure_ac;
324 # Files found by scanning configure.ac for LIBOBJS.
325 my %libsources = ();
327 # Names used in AC_CONFIG_HEADER call.
328 my @config_headers = ();
330 # Names used in AC_CONFIG_LINKS call.
331 my @config_links = ();
333 # Directory where output files go. Actually, output files are
334 # relative to this directory.
335 my $output_directory;
337 # List of Makefile.am's to process, and their corresponding outputs.
338 my @input_files = ();
339 my %output_files = ();
341 # Complete list of Makefile.am's that exist.
342 my @configure_input_files = ();
344 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
345 # and their outputs.
346 my @other_input_files = ();
347 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
348 # The keys are the files created by these macros.
349 my %ac_config_files_location = ();
350 # The condition under which AC_CONFIG_FOOS appears.
351 my %ac_config_files_condition = ();
353 # Directory to search for configure-required files. This
354 # will be computed by &locate_aux_dir and can be set using
355 # AC_CONFIG_AUX_DIR in configure.ac.
356 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
357 my $config_aux_dir = '';
358 my $config_aux_dir_set_in_configure_ac = 0;
359 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
360 # in Makefiles.
361 my $am_config_aux_dir = '';
363 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
364 # in configure.ac.
365 my $config_libobj_dir = '';
367 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
368 my $seen_gettext = 0;
369 # Whether AM_GNU_GETTEXT([external]) is used.
370 my $seen_gettext_external = 0;
371 # Where AM_GNU_GETTEXT appears.
372 my $ac_gettext_location;
373 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
374 my $seen_gettext_intl = 0;
376 # Lists of tags supported by Libtool.
377 my %libtool_tags = ();
378 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
379 # uses AC_REQUIRE_AUX_FILE.
380 my $libtool_new_api = 0;
382 # Most important AC_CANONICAL_* macro seen so far.
383 my $seen_canonical = 0;
384 # Location of that macro.
385 my $canonical_location;
387 # Where AM_MAINTAINER_MODE appears.
388 my $seen_maint_mode;
390 # Actual version we've seen.
391 my $package_version = '';
393 # Where version is defined.
394 my $package_version_location;
396 # TRUE if we've seen AM_ENABLE_MULTILIB.
397 my $seen_multilib = 0;
399 # TRUE if we've seen AM_PROG_CC_C_O
400 my $seen_cc_c_o = 0;
402 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
403 my %required_aux_file = ();
405 # Where AM_INIT_AUTOMAKE is called;
406 my $seen_init_automake = 0;
408 # TRUE if we've seen AM_AUTOMAKE_VERSION.
409 my $seen_automake_version = 0;
411 # Hash table of discovered configure substitutions. Keys are names,
412 # values are `FILE:LINE' strings which are used by error message
413 # generation.
414 my %configure_vars = ();
416 # Ignored configure substitutions (i.e., variables not to be output in
417 # Makefile.in)
418 my %ignored_configure_vars = ();
420 # Files included by $configure_ac.
421 my @configure_deps = ();
423 # Greatest timestamp of configure's dependencies.
424 my $configure_deps_greatest_timestamp = 0;
426 # Hash table of AM_CONDITIONAL variables seen in configure.
427 my %configure_cond = ();
429 # This maps extensions onto language names.
430 my %extension_map = ();
432 # List of the DIST_COMMON files we discovered while reading
433 # configure.in
434 my $configure_dist_common = '';
436 # This maps languages names onto objects.
437 my %languages = ();
438 # Maps each linker variable onto a language object.
439 my %link_languages = ();
441 # maps extensions to needed source flags.
442 my %sourceflags = ();
444 # List of targets we must always output.
445 # FIXME: Complete, and remove falsely required targets.
446 my %required_targets =
447 (
448 'all' => 1,
449 'dvi' => 1,
450 'pdf' => 1,
451 'ps' => 1,
452 'info' => 1,
453 'install-info' => 1,
454 'install' => 1,
455 'install-data' => 1,
456 'install-exec' => 1,
457 'uninstall' => 1,
459 # FIXME: Not required, temporary hacks.
460 # Well, actually they are sort of required: the -recursive
461 # targets will run them anyway...
462 'html-am' => 1,
463 'dvi-am' => 1,
464 'pdf-am' => 1,
465 'ps-am' => 1,
466 'info-am' => 1,
467 'install-data-am' => 1,
468 'install-exec-am' => 1,
469 'install-html-am' => 1,
470 'install-dvi-am' => 1,
471 'install-pdf-am' => 1,
472 'install-ps-am' => 1,
473 'install-info-am' => 1,
474 'installcheck-am' => 1,
475 'uninstall-am' => 1,
477 'install-man' => 1,
478 );
480 # Set to 1 if this run will create the Makefile.in that distributes
481 # the files in config_aux_dir.
482 my $automake_will_process_aux_dir = 0;
484 # The name of the Makefile currently being processed.
485 my $am_file = 'BUG';
486 \f
488 ################################################################
490 ## ------------------------------------------ ##
491 ## Variables reset by &initialize_per_input. ##
492 ## ------------------------------------------ ##
494 # Basename and relative dir of the input file.
495 my $am_file_name;
496 my $am_relative_dir;
498 # Same but wrt Makefile.in.
499 my $in_file_name;
500 my $relative_dir;
502 # Relative path to the top directory.
503 my $topsrcdir;
505 # Greatest timestamp of the output's dependencies (excluding
506 # configure's dependencies).
507 my $output_deps_greatest_timestamp;
509 # These variables are used when generating each Makefile.in.
510 # They hold the Makefile.in until it is ready to be printed.
511 my $output_vars;
512 my $output_all;
513 my $output_header;
514 my $output_rules;
515 my $output_trailer;
517 # This is the conditional stack, updated on if/else/endif, and
518 # used to build Condition objects.
519 my @cond_stack;
521 # This holds the set of included files.
522 my @include_stack;
524 # List of dependencies for the obvious targets.
525 my @all;
526 my @check;
527 my @check_tests;
529 # Keys in this hash table are files to delete. The associated
530 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
531 my %clean_files;
533 # Keys in this hash table are object files or other files in
534 # subdirectories which need to be removed. This only holds files
535 # which are created by compilations. The value in the hash indicates
536 # when the file should be removed.
537 my %compile_clean_files;
539 # Keys in this hash table are directories where we expect to build a
540 # libtool object. We use this information to decide what directories
541 # to delete.
542 my %libtool_clean_directories;
544 # Value of `$(SOURCES)', used by tags.am.
545 my @sources;
546 # Sources which go in the distribution.
547 my @dist_sources;
549 # This hash maps object file names onto their corresponding source
550 # file names. This is used to ensure that each object is created
551 # by a single source file.
552 my %object_map;
554 # This hash maps object file names onto an integer value representing
555 # whether this object has been built via ordinary compilation or
556 # libtool compilation (the COMPILE_* constants).
557 my %object_compilation_map;
560 # This keeps track of the directories for which we've already
561 # created dirstamp code. Keys are directories, values are stamp files.
562 # Several keys can share the same stamp files if they are equivalent
563 # (as are `.//foo' and `foo').
564 my %directory_map;
566 # All .P files.
567 my %dep_files;
569 # This is a list of all targets to run during "make dist".
570 my @dist_targets;
572 # Keep track of all programs declared in this Makefile, without
573 # $(EXEEXT). @substitutions@ are not listed.
574 my %known_programs;
575 my %known_libraries;
577 # Keys in this hash are the basenames of files which must depend on
578 # ansi2knr. Values are either the empty string, or the directory in
579 # which the ANSI source file appears; the directory must have a
580 # trailing `/'.
581 my %de_ansi_files;
583 # This keeps track of which extensions we've seen (that we care
584 # about).
585 my %extension_seen;
587 # This is random scratch space for the language finish functions.
588 # Don't randomly overwrite it; examine other uses of keys first.
589 my %language_scratch;
591 # We keep track of which objects need special (per-executable)
592 # handling on a per-language basis.
593 my %lang_specific_files;
595 # This is set when `handle_dist' has finished. Once this happens,
596 # we should no longer push on dist_common.
597 my $handle_dist_run;
599 # Used to store a set of linkers needed to generate the sources currently
600 # under consideration.
601 my %linkers_used;
603 # True if we need `LINK' defined. This is a hack.
604 my $need_link;
606 # Was get_object_extension run?
607 # FIXME: This is a hack. a better switch should be found.
608 my $get_object_extension_was_run;
610 # Record each file processed by make_paragraphs.
611 my %transformed_files;
612 \f
614 ################################################################
616 ## ---------------------------------------------- ##
617 ## Variables not reset by &initialize_per_input. ##
618 ## ---------------------------------------------- ##
620 # Cache each file processed by make_paragraphs.
621 # (This is different from %transformed_files because
622 # %transformed_files is reset for each file while %am_file_cache
623 # it global to the run.)
624 my %am_file_cache;
626 ################################################################
628 # var_SUFFIXES_trigger ($TYPE, $VALUE)
629 # ------------------------------------
630 # This is called by Automake::Variable::define() when SUFFIXES
631 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
632 # The work here needs to be performed as a side-effect of the
633 # macro_define() call because SUFFIXES definitions impact
634 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
635 # the input am file.
636 sub var_SUFFIXES_trigger ($$)
637 {
638 my ($type, $value) = @_;
639 accept_extensions (split (' ', $value));
640 }
641 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
643 ################################################################
645 ## --------------------------------- ##
646 ## Forward subroutine declarations. ##
647 ## --------------------------------- ##
648 sub register_language (%);
649 sub file_contents_internal ($$$%);
650 sub define_files_variable ($\@$$);
653 # &initialize_per_input ()
654 # ------------------------
655 # (Re)-Initialize per-Makefile.am variables.
656 sub initialize_per_input ()
657 {
658 reset_local_duplicates ();
660 $am_file_name = undef;
661 $am_relative_dir = undef;
663 $in_file_name = undef;
664 $relative_dir = undef;
665 $topsrcdir = undef;
667 $output_deps_greatest_timestamp = 0;
669 $output_vars = '';
670 $output_all = '';
671 $output_header = '';
672 $output_rules = '';
673 $output_trailer = '';
675 Automake::Options::reset;
676 Automake::Variable::reset;
677 Automake::Rule::reset;
679 @cond_stack = ();
681 @include_stack = ();
683 @all = ();
684 @check = ();
685 @check_tests = ();
687 %clean_files = ();
688 %compile_clean_files = ();
690 # We always include `.'. This isn't strictly correct.
691 %libtool_clean_directories = ('.' => 1);
693 @sources = ();
694 @dist_sources = ();
696 %object_map = ();
697 %object_compilation_map = ();
699 %directory_map = ();
701 %dep_files = ();
703 @dist_targets = ();
705 %known_programs = ();
706 %known_libraries= ();
708 %de_ansi_files = ();
710 %extension_seen = ();
712 %language_scratch = ();
714 %lang_specific_files = ();
716 $handle_dist_run = 0;
718 $need_link = 0;
720 $get_object_extension_was_run = 0;
722 %transformed_files = ();
723 }
726 ################################################################
728 # Initialize our list of languages that are internally supported.
730 # C.
731 register_language ('name' => 'c',
732 'Name' => 'C',
733 'config_vars' => ['CC'],
734 'ansi' => 1,
735 'autodep' => '',
736 'flags' => ['CFLAGS', 'CPPFLAGS'],
737 'ccer' => 'CC',
738 'compiler' => 'COMPILE',
739 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
740 'lder' => 'CCLD',
741 'ld' => '$(CC)',
742 'linker' => 'LINK',
743 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
744 'compile_flag' => '-c',
745 'libtool_tag' => 'CC',
746 'extensions' => ['.c'],
747 '_finish' => \&lang_c_finish);
749 # C++.
750 register_language ('name' => 'cxx',
751 'Name' => 'C++',
752 'config_vars' => ['CXX'],
753 'linker' => 'CXXLINK',
754 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
755 'autodep' => 'CXX',
756 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
757 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
758 'ccer' => 'CXX',
759 'compiler' => 'CXXCOMPILE',
760 'compile_flag' => '-c',
761 'output_flag' => '-o',
762 'libtool_tag' => 'CXX',
763 'lder' => 'CXXLD',
764 'ld' => '$(CXX)',
765 'pure' => 1,
766 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
768 # Objective C.
769 register_language ('name' => 'objc',
770 'Name' => 'Objective C',
771 'config_vars' => ['OBJC'],
772 'linker' => 'OBJCLINK',
773 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
774 'autodep' => 'OBJC',
775 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
776 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
777 'ccer' => 'OBJC',
778 'compiler' => 'OBJCCOMPILE',
779 'compile_flag' => '-c',
780 'output_flag' => '-o',
781 'lder' => 'OBJCLD',
782 'ld' => '$(OBJC)',
783 'pure' => 1,
784 'extensions' => ['.m']);
786 # Unified Parallel C.
787 register_language ('name' => 'upc',
788 'Name' => 'Unified Parallel C',
789 'config_vars' => ['UPC'],
790 'linker' => 'UPCLINK',
791 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
792 'autodep' => 'UPC',
793 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
794 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
795 'ccer' => 'UPC',
796 'compiler' => 'UPCCOMPILE',
797 'compile_flag' => '-c',
798 'output_flag' => '-o',
799 'lder' => 'UPCLD',
800 'ld' => '$(UPC)',
801 'pure' => 1,
802 'extensions' => ['.upc']);
804 # Headers.
805 register_language ('name' => 'header',
806 'Name' => 'Header',
807 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
808 '.hpp', '.inc'],
809 # No output.
810 'output_extensions' => sub { return () },
811 # Nothing to do.
812 '_finish' => sub { });
814 # Vala
815 register_language ('name' => 'vala',
816 'Name' => 'Vala',
817 'config_vars' => ['VALAC'],
818 'flags' => [],
819 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
820 'ccer' => 'VALAC',
821 'compiler' => 'VALACOMPILE',
822 'extensions' => ['.vala'],
823 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
824 return ($ext,) },
825 'rule_file' => 'vala',
826 '_finish' => \&lang_vala_finish,
827 '_target_hook' => \&lang_vala_target_hook,
828 'nodist_specific' => 1);
830 # Yacc (C & C++).
831 register_language ('name' => 'yacc',
832 'Name' => 'Yacc',
833 'config_vars' => ['YACC'],
834 'flags' => ['YFLAGS'],
835 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
836 'ccer' => 'YACC',
837 'compiler' => 'YACCCOMPILE',
838 'extensions' => ['.y'],
839 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
840 return ($ext,) },
841 'rule_file' => 'yacc',
842 '_finish' => \&lang_yacc_finish,
843 '_target_hook' => \&lang_yacc_target_hook,
844 'nodist_specific' => 1);
845 register_language ('name' => 'yaccxx',
846 'Name' => 'Yacc (C++)',
847 'config_vars' => ['YACC'],
848 'rule_file' => 'yacc',
849 'flags' => ['YFLAGS'],
850 'ccer' => 'YACC',
851 'compiler' => 'YACCCOMPILE',
852 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
853 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
854 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
855 return ($ext,) },
856 '_finish' => \&lang_yacc_finish,
857 '_target_hook' => \&lang_yacc_target_hook,
858 'nodist_specific' => 1);
860 # Lex (C & C++).
861 register_language ('name' => 'lex',
862 'Name' => 'Lex',
863 'config_vars' => ['LEX'],
864 'rule_file' => 'lex',
865 'flags' => ['LFLAGS'],
866 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
867 'ccer' => 'LEX',
868 'compiler' => 'LEXCOMPILE',
869 'extensions' => ['.l'],
870 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
871 return ($ext,) },
872 '_finish' => \&lang_lex_finish,
873 '_target_hook' => \&lang_lex_target_hook,
874 'nodist_specific' => 1);
875 register_language ('name' => 'lexxx',
876 'Name' => 'Lex (C++)',
877 'config_vars' => ['LEX'],
878 'rule_file' => 'lex',
879 'flags' => ['LFLAGS'],
880 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
881 'ccer' => 'LEX',
882 'compiler' => 'LEXCOMPILE',
883 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
884 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
885 return ($ext,) },
886 '_finish' => \&lang_lex_finish,
887 '_target_hook' => \&lang_lex_target_hook,
888 'nodist_specific' => 1);
890 # Assembler.
891 register_language ('name' => 'asm',
892 'Name' => 'Assembler',
893 'config_vars' => ['CCAS', 'CCASFLAGS'],
895 'flags' => ['CCASFLAGS'],
896 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
897 # or anything else required. They can also set CCAS.
898 # Or simply use Preprocessed Assembler.
899 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
900 'ccer' => 'CCAS',
901 'compiler' => 'CCASCOMPILE',
902 'compile_flag' => '-c',
903 'output_flag' => '-o',
904 'extensions' => ['.s'],
906 # With assembly we still use the C linker.
907 '_finish' => \&lang_c_finish);
909 # Preprocessed Assembler.
910 register_language ('name' => 'cppasm',
911 'Name' => 'Preprocessed Assembler',
912 'config_vars' => ['CCAS', 'CCASFLAGS'],
914 'autodep' => 'CCAS',
915 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
916 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
917 'ccer' => 'CPPAS',
918 'compiler' => 'CPPASCOMPILE',
919 'compile_flag' => '-c',
920 'output_flag' => '-o',
921 'extensions' => ['.S', '.sx'],
923 # With assembly we still use the C linker.
924 '_finish' => \&lang_c_finish);
926 # Fortran 77
927 register_language ('name' => 'f77',
928 'Name' => 'Fortran 77',
929 'config_vars' => ['F77'],
930 'linker' => 'F77LINK',
931 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
932 'flags' => ['FFLAGS'],
933 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
934 'ccer' => 'F77',
935 'compiler' => 'F77COMPILE',
936 'compile_flag' => '-c',
937 'output_flag' => '-o',
938 'libtool_tag' => 'F77',
939 'lder' => 'F77LD',
940 'ld' => '$(F77)',
941 'pure' => 1,
942 'extensions' => ['.f', '.for']);
944 # Fortran
945 register_language ('name' => 'fc',
946 'Name' => 'Fortran',
947 'config_vars' => ['FC'],
948 'linker' => 'FCLINK',
949 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
950 'flags' => ['FCFLAGS'],
951 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
952 'ccer' => 'FC',
953 'compiler' => 'FCCOMPILE',
954 'compile_flag' => '-c',
955 'output_flag' => '-o',
956 'libtool_tag' => 'FC',
957 'lder' => 'FCLD',
958 'ld' => '$(FC)',
959 'pure' => 1,
960 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
962 # Preprocessed Fortran
963 register_language ('name' => 'ppfc',
964 'Name' => 'Preprocessed Fortran',
965 'config_vars' => ['FC'],
966 'linker' => 'FCLINK',
967 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
968 'lder' => 'FCLD',
969 'ld' => '$(FC)',
970 'flags' => ['FCFLAGS', 'CPPFLAGS'],
971 'ccer' => 'PPFC',
972 'compiler' => 'PPFCCOMPILE',
973 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
974 'compile_flag' => '-c',
975 'output_flag' => '-o',
976 'libtool_tag' => 'FC',
977 'pure' => 1,
978 'extensions' => ['.F90','.F95', '.F03', '.F08']);
980 # Preprocessed Fortran 77
981 #
982 # The current support for preprocessing Fortran 77 just involves
983 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
984 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
985 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
986 # for `make' Version 3.76 Beta' (specifically, from info file
987 # `(make)Catalogue of Rules').
988 #
989 # A better approach would be to write an Autoconf test
990 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
991 # Fortran 77 compilers know how to do preprocessing. The Autoconf
992 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
993 # preprocessing capabilities, and then fall back on cpp (if cpp were
994 # available).
995 register_language ('name' => 'ppf77',
996 'Name' => 'Preprocessed Fortran 77',
997 'config_vars' => ['F77'],
998 'linker' => 'F77LINK',
999 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1000 'lder' => 'F77LD',
1001 'ld' => '$(F77)',
1002 'flags' => ['FFLAGS', 'CPPFLAGS'],
1003 'ccer' => 'PPF77',
1004 'compiler' => 'PPF77COMPILE',
1005 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
1006 'compile_flag' => '-c',
1007 'output_flag' => '-o',
1008 'libtool_tag' => 'F77',
1009 'pure' => 1,
1010 'extensions' => ['.F']);
1012 # Ratfor.
1013 register_language ('name' => 'ratfor',
1014 'Name' => 'Ratfor',
1015 'config_vars' => ['F77'],
1016 'linker' => 'F77LINK',
1017 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1018 'lder' => 'F77LD',
1019 'ld' => '$(F77)',
1020 'flags' => ['RFLAGS', 'FFLAGS'],
1021 # FIXME also FFLAGS.
1022 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1023 'ccer' => 'F77',
1024 'compiler' => 'RCOMPILE',
1025 'compile_flag' => '-c',
1026 'output_flag' => '-o',
1027 'libtool_tag' => 'F77',
1028 'pure' => 1,
1029 'extensions' => ['.r']);
1031 # Java via gcj.
1032 register_language ('name' => 'java',
1033 'Name' => 'Java',
1034 'config_vars' => ['GCJ'],
1035 'linker' => 'GCJLINK',
1036 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1037 'autodep' => 'GCJ',
1038 'flags' => ['GCJFLAGS'],
1039 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1040 'ccer' => 'GCJ',
1041 'compiler' => 'GCJCOMPILE',
1042 'compile_flag' => '-c',
1043 'output_flag' => '-o',
1044 'libtool_tag' => 'GCJ',
1045 'lder' => 'GCJLD',
1046 'ld' => '$(GCJ)',
1047 'pure' => 1,
1048 'extensions' => ['.java', '.class', '.zip', '.jar']);
1050 ################################################################
1052 # Error reporting functions.
1054 # err_am ($MESSAGE, [%OPTIONS])
1055 # -----------------------------
1056 # Uncategorized errors about the current Makefile.am.
1057 sub err_am ($;%)
1058 {
1059 msg_am ('error', @_);
1060 }
1062 # err_ac ($MESSAGE, [%OPTIONS])
1063 # -----------------------------
1064 # Uncategorized errors about configure.ac.
1065 sub err_ac ($;%)
1066 {
1067 msg_ac ('error', @_);
1068 }
1070 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1071 # ---------------------------------------
1072 # Messages about about the current Makefile.am.
1073 sub msg_am ($$;%)
1074 {
1075 my ($channel, $msg, %opts) = @_;
1076 msg $channel, "${am_file}.am", $msg, %opts;
1077 }
1079 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1080 # ---------------------------------------
1081 # Messages about about configure.ac.
1082 sub msg_ac ($$;%)
1083 {
1084 my ($channel, $msg, %opts) = @_;
1085 msg $channel, $configure_ac, $msg, %opts;
1086 }
1088 ################################################################
1090 # subst ($TEXT)
1091 # -------------
1092 # Return a configure-style substitution using the indicated text.
1093 # We do this to avoid having the substitutions directly in automake.in;
1094 # when we do that they are sometimes removed and this causes confusion
1095 # and bugs.
1096 sub subst ($)
1097 {
1098 my ($text) = @_;
1099 return '@' . $text . '@';
1100 }
1102 ################################################################
1105 # $BACKPATH
1106 # &backname ($REL-DIR)
1107 # --------------------
1108 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1109 # For instance `src/foo' => `../..'.
1110 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1111 sub backname ($)
1112 {
1113 my ($file) = @_;
1114 my @res;
1115 foreach (split (/\//, $file))
1116 {
1117 next if $_ eq '.' || $_ eq '';
1118 if ($_ eq '..')
1119 {
1120 pop @res
1121 or prog_error ("trying to reverse path `$file' pointing outside tree");
1122 }
1123 else
1124 {
1125 push (@res, '..');
1126 }
1127 }
1128 return join ('/', @res) || '.';
1129 }
1131 ################################################################
1133 # `silent-rules' mode handling functions.
1135 # verbose_var (NAME)
1136 # ------------------
1137 # The public variable stem used to implement `silent-rules'.
1138 sub verbose_var ($)
1139 {
1140 my ($name) = @_;
1141 return 'AM_V_' . $name;
1142 }
1144 # verbose_private_var (NAME)
1145 # --------------------------
1146 # The naming policy for the private variables for `silent-rules'.
1147 sub verbose_private_var ($)
1148 {
1149 my ($name) = @_;
1150 return 'am__v_' . $name;
1151 }
1153 # define_verbose_var (NAME, VAL)
1154 # ------------------------------
1155 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1156 sub define_verbose_var ($$)
1157 {
1158 my ($name, $val) = @_;
1159 my $var = verbose_var ($name);
1160 my $pvar = verbose_private_var ($name);
1161 my $silent_var = $pvar . '_0';
1162 if (option 'silent-rules')
1163 {
1164 # For typical `make's, `configure' replaces AM_V (inside @@) with $(V)
1165 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1166 # For strict POSIX 2008 `make's, it replaces them with 0 or 1 instead.
1167 # See AM_SILENT_RULES in m4/silent.m4.
1168 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1169 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1170 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1171 '', INTERNAL, VAR_ASIS)
1172 if (! vardef ($silent_var, TRUE));
1173 }
1174 }
1176 # Above should not be needed in the general automake code.
1178 # verbose_flag (NAME)
1179 # -------------------
1180 # Contents of %VERBOSE%: variable to expand before rule command.
1181 sub verbose_flag ($)
1182 {
1183 my ($name) = @_;
1184 return '$(' . verbose_var ($name) . ')'
1185 if (option 'silent-rules');
1186 return '';
1187 }
1189 sub verbose_nodep_flag ($)
1190 {
1191 my ($name) = @_;
1192 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1193 if (option 'silent-rules');
1194 return '';
1195 }
1197 # silent_flag
1198 # -----------
1199 # Contents of %SILENT%: variable to expand to `@' when silent.
1200 sub silent_flag ()
1201 {
1202 return verbose_flag ('at');
1203 }
1205 # define_verbose_tagvar (NAME)
1206 # ----------------------------
1207 # Engage the needed `silent-rules' machinery for tag NAME.
1208 sub define_verbose_tagvar ($)
1209 {
1210 my ($name) = @_;
1211 if (option 'silent-rules')
1212 {
1213 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1214 define_verbose_var ('at', '@');
1215 }
1216 }
1218 # define_verbose_libtool
1219 # ----------------------
1220 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1221 sub define_verbose_libtool ()
1222 {
1223 define_verbose_var ('lt', '--silent');
1224 return verbose_flag ('lt');
1225 }
1228 ################################################################
1231 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1232 sub handle_options
1233 {
1234 my $var = var ('AUTOMAKE_OPTIONS');
1235 if ($var)
1236 {
1237 if ($var->has_conditional_contents)
1238 {
1239 msg_var ('unsupported', $var,
1240 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1241 }
1242 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1243 location => 1))
1244 {
1245 my ($loc, $value) = @$locvals;
1246 return 1 if (process_option_list ($loc, $value))
1247 }
1248 }
1250 # Override portability-recursive warning.
1251 switch_warning ('no-portability-recursive')
1252 if option 'silent-rules';
1254 if ($strictness == GNITS)
1255 {
1256 set_option ('readme-alpha', INTERNAL);
1257 set_option ('std-options', INTERNAL);
1258 set_option ('check-news', INTERNAL);
1259 }
1261 return 0;
1262 }
1264 # shadow_unconditionally ($varname, $where)
1265 # -----------------------------------------
1266 # Return a $(variable) that contains all possible values
1267 # $varname can take.
1268 # If the VAR wasn't defined conditionally, return $(VAR).
1269 # Otherwise we create an am__VAR_DIST variable which contains
1270 # all possible values, and return $(am__VAR_DIST).
1271 sub shadow_unconditionally ($$)
1272 {
1273 my ($varname, $where) = @_;
1274 my $var = var $varname;
1275 if ($var->has_conditional_contents)
1276 {
1277 $varname = "am__${varname}_DIST";
1278 my @files = uniq ($var->value_as_list_recursive);
1279 define_pretty_variable ($varname, TRUE, $where, @files);
1280 }
1281 return "\$($varname)"
1282 }
1284 # get_object_extension ($EXTENSION)
1285 # ---------------------------------
1286 # Prefix $EXTENSION with $U if ansi2knr is in use.
1287 sub get_object_extension ($)
1288 {
1289 my ($extension) = @_;
1291 # Check for automatic de-ANSI-fication.
1292 $extension = '$U' . $extension
1293 if option 'ansi2knr';
1295 $get_object_extension_was_run = 1;
1297 return $extension;
1298 }
1300 # check_user_variables (@LIST)
1301 # ----------------------------
1302 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1303 # otherwise.
1304 sub check_user_variables (@)
1305 {
1306 my @dont_override = @_;
1307 foreach my $flag (@dont_override)
1308 {
1309 my $var = var $flag;
1310 if ($var)
1311 {
1312 for my $cond ($var->conditions->conds)
1313 {
1314 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1315 {
1316 msg_cond_var ('gnu', $cond, $flag,
1317 "`$flag' is a user variable, "
1318 . "you should not override it;\n"
1319 . "use `AM_$flag' instead.");
1320 }
1321 }
1322 }
1323 }
1324 }
1326 # Call finish function for each language that was used.
1327 sub handle_languages
1328 {
1329 if (! option 'no-dependencies')
1330 {
1331 # Include auto-dep code. Don't include it if DEP_FILES would
1332 # be empty.
1333 if (&saw_sources_p (0) && keys %dep_files)
1334 {
1335 # Set location of depcomp.
1336 &define_variable ('depcomp',
1337 "\$(SHELL) $am_config_aux_dir/depcomp",
1338 INTERNAL);
1339 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1341 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1343 my @deplist = sort keys %dep_files;
1344 # Generate each `include' individually. Irix 6 make will
1345 # not properly include several files resulting from a
1346 # variable expansion; generating many separate includes
1347 # seems safest.
1348 $output_rules .= "\n";
1349 foreach my $iter (@deplist)
1350 {
1351 $output_rules .= (subst ('AMDEP_TRUE')
1352 . subst ('am__include')
1353 . ' '
1354 . subst ('am__quote')
1355 . $iter
1356 . subst ('am__quote')
1357 . "\n");
1358 }
1360 # Compute the set of directories to remove in distclean-depend.
1361 my @depdirs = uniq (map { dirname ($_) } @deplist);
1362 $output_rules .= &file_contents ('depend',
1363 new Automake::Location,
1364 DEPDIRS => "@depdirs");
1365 }
1366 }
1367 else
1368 {
1369 &define_variable ('depcomp', '', INTERNAL);
1370 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1371 }
1373 my %done;
1375 # Is the C linker needed?
1376 my $needs_c = 0;
1377 foreach my $ext (sort keys %extension_seen)
1378 {
1379 next unless $extension_map{$ext};
1381 my $lang = $languages{$extension_map{$ext}};
1383 my $rule_file = $lang->rule_file || 'depend2';
1385 # Get information on $LANG.
1386 my $pfx = $lang->autodep;
1387 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1389 my ($AMDEP, $FASTDEP) =
1390 (option 'no-dependencies' || $lang->autodep eq 'no')
1391 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1393 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1394 my $verbose_nodep = ($AMDEP eq 'FALSE')
1395 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1396 my $silent = silent_flag ();
1398 my %transform = ('EXT' => $ext,
1399 'PFX' => $pfx,
1400 'FPFX' => $fpfx,
1401 'AMDEP' => $AMDEP,
1402 'FASTDEP' => $FASTDEP,
1403 '-c' => $lang->compile_flag || '',
1404 # These are not used, but they need to be defined
1405 # so &transform do not complain.
1406 SUBDIROBJ => 0,
1407 'DERIVED-EXT' => 'BUG',
1408 DIST_SOURCE => 1,
1409 VERBOSE => $verbose,
1410 'VERBOSE-NODEP' => $verbose_nodep,
1411 SILENT => $silent,
1412 );
1414 # Generate the appropriate rules for this extension.
1415 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1416 || defined $lang->compile)
1417 {
1418 # Some C compilers don't support -c -o. Use it only if really
1419 # needed.
1420 my $output_flag = $lang->output_flag || '';
1421 $output_flag = '-o'
1422 if (! $output_flag
1423 && $lang->name eq 'c'
1424 && option 'subdir-objects');
1426 # Compute a possible derived extension.
1427 # This is not used by depend2.am.
1428 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1430 # When we output an inference rule like `.c.o:' we
1431 # have two cases to consider: either subdir-objects
1432 # is used, or it is not.
1433 #
1434 # In the latter case the rule is used to build objects
1435 # in the current directory, and dependencies always
1436 # go into `./$(DEPDIR)/'. We can hard-code this value.
1437 #
1438 # In the former case the rule can be used to build
1439 # objects in sub-directories too. Dependencies should
1440 # go into the appropriate sub-directories, e.g.,
1441 # `sub/$(DEPDIR)/'. The value of this directory
1442 # needs to be computed on-the-fly.
1443 #
1444 # DEPBASE holds the name of this directory, plus the
1445 # basename part of the object file (extensions Po, TPo,
1446 # Plo, TPlo will be added later as appropriate). It is
1447 # either hardcoded, or a shell variable (`$depbase') that
1448 # will be computed by the rule.
1449 my $depbase =
1450 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1451 $output_rules .=
1452 file_contents ($rule_file,
1453 new Automake::Location,
1454 %transform,
1455 GENERIC => 1,
1457 'DERIVED-EXT' => $der_ext,
1459 DEPBASE => $depbase,
1460 BASE => '$*',
1461 SOURCE => '$<',
1462 SOURCEFLAG => $sourceflags{$ext} || '',
1463 OBJ => '$@',
1464 OBJOBJ => '$@',
1465 LTOBJ => '$@',
1467 COMPILE => '$(' . $lang->compiler . ')',
1468 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1469 -o => $output_flag,
1470 SUBDIROBJ => !! option 'subdir-objects');
1471 }
1473 # Now include code for each specially handled object with this
1474 # language.
1475 my %seen_files = ();
1476 foreach my $file (@{$lang_specific_files{$lang->name}})
1477 {
1478 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1480 # We might see a given object twice, for instance if it is
1481 # used under different conditions.
1482 next if defined $seen_files{$obj};
1483 $seen_files{$obj} = 1;
1485 prog_error ("found " . $lang->name .
1486 " in handle_languages, but compiler not defined")
1487 unless defined $lang->compile;
1489 my $obj_compile = $lang->compile;
1491 # Rewrite each occurrence of `AM_$flag' in the compile
1492 # rule into `${derived}_$flag' if it exists.
1493 for my $flag (@{$lang->flags})
1494 {
1495 my $val = "${derived}_$flag";
1496 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1497 if set_seen ($val);
1498 }
1500 my $libtool_tag = '';
1501 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1502 {
1503 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1504 }
1506 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1507 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1509 my $ltverbose = define_verbose_libtool ();
1510 my $obj_ltcompile =
1511 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1512 . "--mode=compile $obj_compile";
1514 # We _need_ `-o' for per object rules.
1515 my $output_flag = $lang->output_flag || '-o';
1517 my $depbase = dirname ($obj);
1518 $depbase = ''
1519 if $depbase eq '.';
1520 $depbase .= '/'
1521 unless $depbase eq '';
1522 $depbase .= '$(DEPDIR)/' . basename ($obj);
1524 # Support for deansified files in subdirectories is ugly
1525 # enough to deserve an explanation.
1526 #
1527 # A Note about normal ansi2knr processing first. On
1528 #
1529 # AUTOMAKE_OPTIONS = ansi2knr
1530 # bin_PROGRAMS = foo
1531 # foo_SOURCES = foo.c
1532 #
1533 # we generate rules similar to:
1534 #
1535 # foo: foo$U.o; link ...
1536 # foo$U.o: foo$U.c; compile ...
1537 # foo_.c: foo.c; ansi2knr ...
1538 #
1539 # this is fairly compact, and will call ansi2knr depending
1540 # on the value of $U (`' or `_').
1541 #
1542 # It's harder with subdir sources. On
1543 #
1544 # AUTOMAKE_OPTIONS = ansi2knr
1545 # bin_PROGRAMS = foo
1546 # foo_SOURCES = sub/foo.c
1547 #
1548 # we have to create foo_.c in the current directory.
1549 # (Unless the user asks 'subdir-objects'.) This is important
1550 # in case the same file (`foo.c') is compiled from other
1551 # directories with different cpp options: foo_.c would
1552 # be preprocessed for only one set of options if it were
1553 # put in the subdirectory.
1554 #
1555 # Because foo$U.o must be built from either foo_.c or
1556 # sub/foo.c we can't be as concise as in the first example.
1557 # Instead we output
1558 #
1559 # foo: foo$U.o; link ...
1560 # foo_.o: foo_.c; compile ...
1561 # foo.o: sub/foo.c; compile ...
1562 # foo_.c: foo.c; ansi2knr ...
1563 #
1564 # This is why we'll now transform $rule_file twice
1565 # if we detect this case.
1566 # A first time we output the compile rule with `$U'
1567 # replaced by `_' and the source directory removed,
1568 # and another time we simply remove `$U'.
1569 #
1570 # Note that at this point $source (as computed by
1571 # &handle_single_transform) is `sub/foo$U.c'.
1572 # This can be confusing: it can be used as-is when
1573 # subdir-objects is set, otherwise you have to know
1574 # it really means `foo_.c' or `sub/foo.c'.
1575 my $objdir = dirname ($obj);
1576 my $srcdir = dirname ($source);
1577 if ($lang->ansi && $obj =~ /\$U/)
1578 {
1579 prog_error "`$obj' contains \$U, but `$source' doesn't."
1580 if $source !~ /\$U/;
1582 (my $source_ = $source) =~ s/\$U/_/g;
1583 # Output an additional rule if _.c and .c are not in
1584 # the same directory. (_.c is always in $objdir.)
1585 if ($objdir ne $srcdir)
1586 {
1587 (my $obj_ = $obj) =~ s/\$U/_/g;
1588 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1589 $source_ = basename ($source_);
1591 $output_rules .=
1592 file_contents ($rule_file,
1593 new Automake::Location,
1594 %transform,
1595 GENERIC => 0,
1597 DEPBASE => $depbase_,
1598 BASE => $obj_,
1599 SOURCE => $source_,
1600 SOURCEFLAG => $sourceflags{$srcext} || '',
1601 OBJ => "$obj_$myext",
1602 OBJOBJ => "$obj_.obj",
1603 LTOBJ => "$obj_.lo",
1605 COMPILE => $obj_compile,
1606 LTCOMPILE => $obj_ltcompile,
1607 -o => $output_flag,
1608 %file_transform);
1609 $obj =~ s/\$U//g;
1610 $depbase =~ s/\$U//g;
1611 $source =~ s/\$U//g;
1612 }
1613 }
1615 $output_rules .=
1616 file_contents ($rule_file,
1617 new Automake::Location,
1618 %transform,
1619 GENERIC => 0,
1621 DEPBASE => $depbase,
1622 BASE => $obj,
1623 SOURCE => $source,
1624 SOURCEFLAG => $sourceflags{$srcext} || '',
1625 # Use $myext and not `.o' here, in case
1626 # we are actually building a new source
1627 # file -- e.g. via yacc.
1628 OBJ => "$obj$myext",
1629 OBJOBJ => "$obj.obj",
1630 LTOBJ => "$obj.lo",
1632 VERBOSE => $verbose,
1633 'VERBOSE-NODEP' => $verbose_nodep,
1634 SILENT => $silent,
1635 COMPILE => $obj_compile,
1636 LTCOMPILE => $obj_ltcompile,
1637 -o => $output_flag,
1638 %file_transform);
1639 }
1641 # The rest of the loop is done once per language.
1642 next if defined $done{$lang};
1643 $done{$lang} = 1;
1645 # Load the language dependent Makefile chunks.
1646 my %lang = map { uc ($_) => 0 } keys %languages;
1647 $lang{uc ($lang->name)} = 1;
1648 $output_rules .= file_contents ('lang-compile',
1649 new Automake::Location,
1650 %transform, %lang);
1652 # If the source to a program consists entirely of code from a
1653 # `pure' language, for instance C++ or Fortran 77, then we
1654 # don't need the C compiler code. However if we run into
1655 # something unusual then we do generate the C code. There are
1656 # probably corner cases here that do not work properly.
1657 # People linking Java code to Fortran code deserve pain.
1658 $needs_c ||= ! $lang->pure;
1660 define_compiler_variable ($lang)
1661 if ($lang->compile);
1663 define_linker_variable ($lang)
1664 if ($lang->link);
1666 require_variables ("$am_file.am", $lang->Name . " source seen",
1667 TRUE, @{$lang->config_vars});
1669 # Call the finisher.
1670 $lang->finish;
1672 # Flags listed in `->flags' are user variables (per GNU Standards),
1673 # they should not be overridden in the Makefile...
1674 my @dont_override = @{$lang->flags};
1675 # ... and so is LDFLAGS.
1676 push @dont_override, 'LDFLAGS' if $lang->link;
1678 check_user_variables @dont_override;
1679 }
1681 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1682 # suffix rule was learned), don't bother with the C stuff. But if
1683 # anything else creeps in, then use it.
1684 $needs_c = 1
1685 if $need_link || suffix_rules_count > 1;
1687 if ($needs_c)
1688 {
1689 &define_compiler_variable ($languages{'c'})
1690 unless defined $done{$languages{'c'}};
1691 define_linker_variable ($languages{'c'});
1692 }
1694 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1695 define_verbose_tagvar ('GEN');
1696 }
1699 # append_exeext { PREDICATE } $MACRO
1700 # ----------------------------------
1701 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1702 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1703 # ignored.
1704 #
1705 # This is typically used on all filenames of *_PROGRAMS, and filenames
1706 # of TESTS that are programs.
1707 sub append_exeext (&$)
1708 {
1709 my ($pred, $macro) = @_;
1711 transform_variable_recursively
1712 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1713 sub {
1714 my ($subvar, $val, $cond, $full_cond) = @_;
1715 # Append $(EXEEXT) unless the user did it already, or it's a
1716 # @substitution@.
1717 $val .= '$(EXEEXT)'
1718 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1719 return $val;
1720 });
1721 }
1724 # Check to make sure a source defined in LIBOBJS is not explicitly
1725 # mentioned. This is a separate function (as opposed to being inlined
1726 # in handle_source_transform) because it isn't always appropriate to
1727 # do this check.
1728 sub check_libobjs_sources
1729 {
1730 my ($one_file, $unxformed) = @_;
1732 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1733 'dist_EXTRA_', 'nodist_EXTRA_')
1734 {
1735 my @files;
1736 my $varname = $prefix . $one_file . '_SOURCES';
1737 my $var = var ($varname);
1738 if ($var)
1739 {
1740 @files = $var->value_as_list_recursive;
1741 }
1742 elsif ($prefix eq '')
1743 {
1744 @files = ($unxformed . '.c');
1745 }
1746 else
1747 {
1748 next;
1749 }
1751 foreach my $file (@files)
1752 {
1753 err_var ($prefix . $one_file . '_SOURCES',
1754 "automatically discovered file `$file' should not" .
1755 " be explicitly mentioned")
1756 if defined $libsources{$file};
1757 }
1758 }
1759 }
1762 # @OBJECTS
1763 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1764 # -----------------------------------------------------------------------------
1765 # Does much of the actual work for handle_source_transform.
1766 # Arguments are:
1767 # $VAR is the name of the variable that the source filenames come from
1768 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1769 # $DERIVED is the name of resulting executable or library
1770 # $OBJ is the object extension (e.g., `$U.lo')
1771 # $FILE the source file to transform
1772 # %TRANSFORM contains extras arguments to pass to file_contents
1773 # when producing explicit rules
1774 # Result is a list of the names of objects
1775 # %linkers_used will be updated with any linkers needed
1776 sub handle_single_transform ($$$$$%)
1777 {
1778 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1779 my @files = ($_file);
1780 my @result = ();
1781 my $nonansi_obj = $obj;
1782 $nonansi_obj =~ s/\$U//g;
1784 # Turn sources into objects. We use a while loop like this
1785 # because we might add to @files in the loop.
1786 while (scalar @files > 0)
1787 {
1788 $_ = shift @files;
1790 # Configure substitutions in _SOURCES variables are errors.
1791 if (/^\@.*\@$/)
1792 {
1793 my $parent_msg = '';
1794 $parent_msg = "\nand is referred to from `$topparent'"
1795 if $topparent ne $var->name;
1796 err_var ($var,
1797 "`" . $var->name . "' includes configure substitution `$_'"
1798 . $parent_msg . ";\nconfigure " .
1799 "substitutions are not allowed in _SOURCES variables");
1800 next;
1801 }
1803 # If the source file is in a subdirectory then the `.o' is put
1804 # into the current directory, unless the subdir-objects option
1805 # is in effect.
1807 # Split file name into base and extension.
1808 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1809 my $full = $_;
1810 my $directory = $1 || '';
1811 my $base = $2;
1812 my $extension = $3;
1814 # We must generate a rule for the object if it requires its own flags.
1815 my $renamed = 0;
1816 my ($linker, $object);
1818 # This records whether we've seen a derived source file (e.g.
1819 # yacc output).
1820 my $derived_source = 0;
1822 # This holds the `aggregate context' of the file we are
1823 # currently examining. If the file is compiled with
1824 # per-object flags, then it will be the name of the object.
1825 # Otherwise it will be `AM'. This is used by the target hook
1826 # language function.
1827 my $aggregate = 'AM';
1829 $extension = &derive_suffix ($extension, $nonansi_obj);
1830 my $lang;
1831 if ($extension_map{$extension} &&
1832 ($lang = $languages{$extension_map{$extension}}))
1833 {
1834 # Found the language, so see what it says.
1835 &saw_extension ($extension);
1837 # Do we have per-executable flags for this executable?
1838 my $have_per_exec_flags = 0;
1839 my @peflags = @{$lang->flags};
1840 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1841 foreach my $flag (@peflags)
1842 {
1843 if (set_seen ("${derived}_$flag"))
1844 {
1845 $have_per_exec_flags = 1;
1846 last;
1847 }
1848 }
1850 # Note: computed subr call. The language rewrite function
1851 # should return one of the LANG_* constants. It could
1852 # also return a list whose first value is such a constant
1853 # and whose second value is a new source extension which
1854 # should be applied. This means this particular language
1855 # generates another source file which we must then process
1856 # further.
1857 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1858 my ($r, $source_extension)
1859 = &$subr ($directory, $base, $extension,
1860 $nonansi_obj, $have_per_exec_flags, $var);
1861 # Skip this entry if we were asked not to process it.
1862 next if $r == LANG_IGNORE;
1864 # Now extract linker and other info.
1865 $linker = $lang->linker;
1867 my $this_obj_ext;
1868 if (defined $source_extension)
1869 {
1870 $this_obj_ext = $source_extension;
1871 $derived_source = 1;
1872 }
1873 elsif ($lang->ansi)
1874 {
1875 $this_obj_ext = $obj;
1876 }
1877 else
1878 {
1879 $this_obj_ext = $nonansi_obj;
1880 }
1881 $object = $base . $this_obj_ext;
1883 if ($have_per_exec_flags)
1884 {
1885 # We have a per-executable flag in effect for this
1886 # object. In this case we rewrite the object's
1887 # name to ensure it is unique.
1889 # We choose the name `DERIVED_OBJECT' to ensure
1890 # (1) uniqueness, and (2) continuity between
1891 # invocations. However, this will result in a
1892 # name that is too long for losing systems, in
1893 # some situations. So we provide _SHORTNAME to
1894 # override.
1896 my $dname = $derived;
1897 my $var = var ($derived . '_SHORTNAME');
1898 if ($var)
1899 {
1900 # FIXME: should use the same Condition as
1901 # the _SOURCES variable. But this is really
1902 # silly overkill -- nobody should have
1903 # conditional shortnames.
1904 $dname = $var->variable_value;
1905 }
1906 $object = $dname . '-' . $object;
1908 prog_error ($lang->name . " flags defined without compiler")
1909 if ! defined $lang->compile;
1911 $renamed = 1;
1912 }
1914 # If rewrite said it was ok, put the object into a
1915 # subdir.
1916 if ($r == LANG_SUBDIR && $directory ne '')
1917 {
1918 $object = $directory . '/' . $object;
1919 }
1921 # If the object file has been renamed (because per-target
1922 # flags are used) we cannot compile the file with an
1923 # inference rule: we need an explicit rule.
1924 #
1925 # If the source is in a subdirectory and the object is in
1926 # the current directory, we also need an explicit rule.
1927 #
1928 # If both source and object files are in a subdirectory
1929 # (this happens when the subdir-objects option is used),
1930 # then the inference will work.
1931 #
1932 # The latter case deserves a historical note. When the
1933 # subdir-objects option was added on 1999-04-11 it was
1934 # thought that inferences rules would work for
1935 # subdirectory objects too. Later, on 1999-11-22,
1936 # automake was changed to output explicit rules even for
1937 # subdir-objects. Nobody remembers why, but this occurred
1938 # soon after the merge of the user-dep-gen-branch so it
1939 # might be related. In late 2003 people complained about
1940 # the size of the generated Makefile.ins (libgcj, with
1941 # 2200+ subdir objects was reported to have a 9MB
1942 # Makefile), so we now rely on inference rules again.
1943 # Maybe we'll run across the same issue as in the past,
1944 # but at least this time we can document it. However since
1945 # dependency tracking has evolved it is possible that
1946 # our old problem no longer exists.
1947 # Using inference rules for subdir-objects has been tested
1948 # with GNU make, Solaris make, Ultrix make, BSD make,
1949 # HP-UX make, and OSF1 make successfully.
1950 if ($renamed
1951 || ($directory ne '' && ! option 'subdir-objects')
1952 # We must also use specific rules for a nodist_ source
1953 # if its language requests it.
1954 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1955 {
1956 my $obj_sans_ext = substr ($object, 0,
1957 - length ($this_obj_ext));
1958 my $full_ansi;
1959 if ($directory ne '')
1960 {
1961 $full_ansi = $directory . '/' . $base . $extension;
1962 }
1963 else
1964 {
1965 $full_ansi = $base . $extension;
1966 }
1968 if ($lang->ansi && option 'ansi2knr')
1969 {
1970 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1971 $obj_sans_ext .= '$U';
1972 }
1974 my @specifics = ($full_ansi, $obj_sans_ext,
1975 # Only use $this_obj_ext in the derived
1976 # source case because in the other case we
1977 # *don't* want $(OBJEXT) to appear here.
1978 ($derived_source ? $this_obj_ext : '.o'),
1979 $extension);
1981 # If we renamed the object then we want to use the
1982 # per-executable flag name. But if this is simply a
1983 # subdir build then we still want to use the AM_ flag
1984 # name.
1985 if ($renamed)
1986 {
1987 unshift @specifics, $derived;
1988 $aggregate = $derived;
1989 }
1990 else
1991 {
1992 unshift @specifics, 'AM';
1993 }
1995 # Each item on this list is a reference to a list consisting
1996 # of four values followed by additional transform flags for
1997 # file_contents. The four values are the derived flag prefix
1998 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1999 # source file, the base name of the output file, and
2000 # the extension for the object file.
2001 push (@{$lang_specific_files{$lang->name}},
2002 [@specifics, %transform]);
2003 }
2004 }
2005 elsif ($extension eq $nonansi_obj)
2006 {
2007 # This is probably the result of a direct suffix rule.
2008 # In this case we just accept the rewrite.
2009 $object = "$base$extension";
2010 $object = "$directory/$object" if $directory ne '';
2011 $linker = '';
2012 }
2013 else
2014 {
2015 # No error message here. Used to have one, but it was
2016 # very unpopular.
2017 # FIXME: we could potentially do more processing here,
2018 # perhaps treating the new extension as though it were a
2019 # new source extension (as above). This would require
2020 # more restructuring than is appropriate right now.
2021 next;
2022 }
2024 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2025 if (defined $object_map{$object}
2026 && $object_map{$object} ne $full);
2028 my $comp_val = (($object =~ /\.lo$/)
2029 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2030 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2031 if (defined $object_compilation_map{$comp_obj}
2032 && $object_compilation_map{$comp_obj} != 0
2033 # Only see the error once.
2034 && ($object_compilation_map{$comp_obj}
2035 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2036 && $object_compilation_map{$comp_obj} != $comp_val)
2037 {
2038 err_am "object `$comp_obj' created both with libtool and without";
2039 }
2040 $object_compilation_map{$comp_obj} |= $comp_val;
2042 if (defined $lang)
2043 {
2044 # Let the language do some special magic if required.
2045 $lang->target_hook ($aggregate, $object, $full, %transform);
2046 }
2048 if ($derived_source)
2049 {
2050 prog_error ($lang->name . " has automatic dependency tracking")
2051 if $lang->autodep ne 'no';
2052 # Make sure this new source file is handled next. That will
2053 # make it appear to be at the right place in the list.
2054 unshift (@files, $object);
2055 # Distribute derived sources unless the source they are
2056 # derived from is not.
2057 &push_dist_common ($object)
2058 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2059 next;
2060 }
2062 $linkers_used{$linker} = 1;
2064 push (@result, $object);
2066 if (! defined $object_map{$object})
2067 {
2068 my @dep_list = ();
2069 $object_map{$object} = $full;
2071 # If resulting object is in subdir, we need to make
2072 # sure the subdir exists at build time.
2073 if ($object =~ /\//)
2074 {
2075 # FIXME: check that $DIRECTORY is somewhere in the
2076 # project
2078 # For Java, the way we're handling it right now, a
2079 # `..' component doesn't make sense.
2080 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2081 {
2082 err_am "`$full' should not contain a `..' component";
2083 }
2085 # Make sure object is removed by `make mostlyclean'.
2086 $compile_clean_files{$object} = MOSTLY_CLEAN;
2087 # If we have a libtool object then we also must remove
2088 # the ordinary .o.
2089 if ($object =~ /\.lo$/)
2090 {
2091 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2092 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2094 # Remove any libtool object in this directory.
2095 $libtool_clean_directories{$directory} = 1;
2096 }
2098 push (@dep_list, require_build_directory ($directory));
2100 # If we're generating dependencies, we also want
2101 # to make sure that the appropriate subdir of the
2102 # .deps directory is created.
2103 push (@dep_list,
2104 require_build_directory ($directory . '/$(DEPDIR)'))
2105 unless option 'no-dependencies';
2106 }
2108 &pretty_print_rule ($object . ':', "\t", @dep_list)
2109 if scalar @dep_list > 0;
2110 }
2112 # Transform .o or $o file into .P file (for automatic
2113 # dependency code).
2114 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2115 # might fail over them in an include statement.
2116 # Leading double slashes may be special, as per Posix, so deal
2117 # with them carefully.
2118 if ($lang && $lang->autodep ne 'no')
2119 {
2120 my $depfile = $object;
2121 $depfile =~ s/\.([^.]*)$/.P$1/;
2122 $depfile =~ s/\$\(OBJEXT\)$/o/;
2123 my $maybe_extra_leading_slash = '';
2124 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2125 $depfile =~ s,/+,/,g;
2126 my $basename = basename ($depfile);
2127 # This might make $dirname empty, but we account for that below.
2128 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2129 $dirname = $maybe_extra_leading_slash . $dirname;
2130 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2131 }
2132 }
2134 return @result;
2135 }
2138 # $LINKER
2139 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2140 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2141 # ---------------------------------------------------------------------------
2142 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2143 #
2144 # Arguments are:
2145 # $VAR is the name of the _SOURCES variable
2146 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2147 # it will be generated and returned).
2148 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2149 # work done to determine the linker will be).
2150 # $ONE_FILE is the canonical (transformed) name of object to build
2151 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2152 # $TOPPARENT is the _SOURCES variable being processed.
2153 # $WHERE context into which this definition is done
2154 # %TRANSFORM extra arguments to pass to file_contents when producing
2155 # rules
2156 #
2157 # Result is a pair ($LINKER, $OBJVAR):
2158 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2159 sub define_objects_from_sources ($$$$$$$%)
2160 {
2161 my ($var, $objvar, $nodefine, $one_file,
2162 $obj, $topparent, $where, %transform) = @_;
2164 my $needlinker = "";
2166 transform_variable_recursively
2167 ($var, $objvar, 'am__objects', $nodefine, $where,
2168 # The transform code to run on each filename.
2169 sub {
2170 my ($subvar, $val, $cond, $full_cond) = @_;
2171 my @trans = handle_single_transform ($subvar, $topparent,
2172 $one_file, $obj, $val,
2173 %transform);
2174 $needlinker = "true" if @trans;
2175 return @trans;
2176 });
2178 return $needlinker;
2179 }
2182 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2183 # -----------------------------------------------------------------------------
2184 # Handle SOURCE->OBJECT transform for one program or library.
2185 # Arguments are:
2186 # canonical (transformed) name of target to build
2187 # actual target of object to build
2188 # object extension (i.e., either `.o' or `$o')
2189 # location of the source variable
2190 # extra arguments to pass to file_contents when producing rules
2191 # Return the name of the linker variable that must be used.
2192 # Empty return means just use `LINK'.
2193 sub handle_source_transform ($$$$%)
2194 {
2195 # one_file is canonical name. unxformed is given name. obj is
2196 # object extension.
2197 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2199 my $linker = '';
2201 # No point in continuing if _OBJECTS is defined.
2202 return if reject_var ($one_file . '_OBJECTS',
2203 $one_file . '_OBJECTS should not be defined');
2205 my %used_pfx = ();
2206 my $needlinker;
2207 %linkers_used = ();
2208 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2209 'dist_EXTRA_', 'nodist_EXTRA_')
2210 {
2211 my $varname = $prefix . $one_file . "_SOURCES";
2212 my $var = var $varname;
2213 next unless $var;
2215 # We are going to define _OBJECTS variables using the prefix.
2216 # Then we glom them all together. So we can't use the null
2217 # prefix here as we need it later.
2218 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2220 # Keep track of which prefixes we saw.
2221 $used_pfx{$xpfx} = 1
2222 unless $prefix =~ /EXTRA_/;
2224 push @sources, "\$($varname)";
2225 push @dist_sources, shadow_unconditionally ($varname, $where)
2226 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2228 $needlinker |=
2229 define_objects_from_sources ($varname,
2230 $xpfx . $one_file . '_OBJECTS',
2231 $prefix =~ /EXTRA_/,
2232 $one_file, $obj, $varname, $where,
2233 DIST_SOURCE => ($prefix !~ /^nodist_/),
2234 %transform);
2235 }
2236 if ($needlinker)
2237 {
2238 $linker ||= &resolve_linker (%linkers_used);
2239 }
2241 my @keys = sort keys %used_pfx;
2242 if (scalar @keys == 0)
2243 {
2244 # The default source for libfoo.la is libfoo.c, but for
2245 # backward compatibility we first look at libfoo_la.c,
2246 # if no default source suffix is given.
2247 my $old_default_source = "$one_file.c";
2248 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2249 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2250 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2251 if $default_source_ext =~ /[\t ]/;
2252 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2253 if ($old_default_source ne $default_source
2254 && !$ext_var
2255 && (rule $old_default_source
2256 || rule '$(srcdir)/' . $old_default_source
2257 || rule '${srcdir}/' . $old_default_source
2258 || -f $old_default_source))
2259 {
2260 my $loc = $where->clone;
2261 $loc->pop_context;
2262 msg ('obsolete', $loc,
2263 "the default source for `$unxformed' has been changed "
2264 . "to `$default_source'.\n(Using `$old_default_source' for "
2265 . "backward compatibility.)");
2266 $default_source = $old_default_source;
2267 }
2268 # If a rule exists to build this source with a $(srcdir)
2269 # prefix, use that prefix in our variables too. This is for
2270 # the sake of BSD Make.
2271 if (rule '$(srcdir)/' . $default_source
2272 || rule '${srcdir}/' . $default_source)
2273 {
2274 $default_source = '$(srcdir)/' . $default_source;
2275 }
2277 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2278 push (@sources, $default_source);
2279 push (@dist_sources, $default_source);
2281 %linkers_used = ();
2282 my (@result) =
2283 handle_single_transform ($one_file . '_SOURCES',
2284 $one_file . '_SOURCES',
2285 $one_file, $obj,
2286 $default_source, %transform);
2287 $linker ||= &resolve_linker (%linkers_used);
2288 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2289 }
2290 else
2291 {
2292 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2293 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2294 }
2296 # If we want to use `LINK' we must make sure it is defined.
2297 if ($linker eq '')
2298 {
2299 $need_link = 1;
2300 }
2302 return $linker;
2303 }
2306 # handle_lib_objects ($XNAME, $VAR)
2307 # ---------------------------------
2308 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2309 # Also, generate _DEPENDENCIES variable if appropriate.
2310 # Arguments are:
2311 # transformed name of object being built, or empty string if no object
2312 # name of _LDADD/_LIBADD-type variable to examine
2313 # Returns 1 if LIBOBJS seen, 0 otherwise.
2314 sub handle_lib_objects
2315 {
2316 my ($xname, $varname) = @_;
2318 my $var = var ($varname);
2319 prog_error "handle_lib_objects: `$varname' undefined"
2320 unless $var;
2321 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2322 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2323 my $prefix = $1 || 'AM_';
2325 my $seen_libobjs = 0;
2326 my $flagvar = 0;
2328 transform_variable_recursively
2329 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2330 ! $xname, INTERNAL,
2331 # Transformation function, run on each filename.
2332 sub {
2333 my ($subvar, $val, $cond, $full_cond) = @_;
2335 if ($val =~ /^-/)
2336 {
2337 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2338 if ($val !~ /^-[lL]/ &&
2339 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2340 # for Libtool libraries or programs. (Actually we are a bit
2341 # lax here since this code also applies to non-libtool
2342 # libraries or programs, for which -dlopen and -dlopreopen
2343 # are pure nonsense. Diagnosing this doesn't seem very
2344 # important: the developer will quickly get complaints from
2345 # the linker.)
2346 $val !~ /^-dl(?:pre)?open$/ &&
2347 # Only get this error once.
2348 ! $flagvar)
2349 {
2350 $flagvar = 1;
2351 # FIXME: should display a stack of nested variables
2352 # as context when $var != $subvar.
2353 err_var ($var, "linker flags such as `$val' belong in "
2354 . "`${prefix}LDFLAGS");
2355 }
2356 return ();
2357 }
2358 elsif ($val !~ /^\@.*\@$/)
2359 {
2360 # Assume we have a file of some sort, and output it into the
2361 # dependency variable. Autoconf substitutions are not output;
2362 # rarely is a new dependency substituted into e.g. foo_LDADD
2363 # -- but bad things (e.g. -lX11) are routinely substituted.
2364 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2365 # and handled specially below.
2366 return $val;
2367 }
2368 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2369 {
2370 handle_LIBOBJS ($subvar, $cond, $1);
2371 $seen_libobjs = 1;
2372 return $val;
2373 }
2374 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2375 {
2376 handle_ALLOCA ($subvar, $cond, $1);
2377 return $val;
2378 }
2379 else
2380 {
2381 return ();
2382 }
2383 });
2385 return $seen_libobjs;
2386 }
2388 # handle_LIBOBJS_or_ALLOCA ($VAR)
2389 # -------------------------------
2390 # Definitions common to LIBOBJS and ALLOCA.
2391 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2392 sub handle_LIBOBJS_or_ALLOCA ($)
2393 {
2394 my ($var) = @_;
2396 my $dir = '';
2398 # If LIBOBJS files must be built in another directory we have
2399 # to define LIBOBJDIR and ensure the files get cleaned.
2400 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2401 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2402 if ($config_libobj_dir
2403 && $relative_dir ne $config_libobj_dir)
2404 {
2405 if (option 'subdir-objects')
2406 {
2407 # In the top-level Makefile we do not use $(top_builddir), because
2408 # we are already there, and since the targets are built without
2409 # a $(top_builddir), it helps BSD Make to match them with
2410 # dependencies.
2411 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2412 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2413 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2414 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2415 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2416 # be created by libtool as a side-effect of creating LTLIBOBJS).
2417 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2418 }
2419 else
2420 {
2421 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2422 . " `subdir-objects' is not set");
2423 }
2424 }
2426 return $dir;
2427 }
2429 sub handle_LIBOBJS ($$$)
2430 {
2431 my ($var, $cond, $lt) = @_;
2432 my $myobjext = $lt ? 'lo' : 'o';
2433 $lt ||= '';
2435 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2436 if ! keys %libsources;
2438 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2440 foreach my $iter (keys %libsources)
2441 {
2442 if ($iter =~ /\.[cly]$/)
2443 {
2444 &saw_extension ($&);
2445 &saw_extension ('.c');
2446 }
2448 if ($iter =~ /\.h$/)
2449 {
2450 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2451 }
2452 elsif ($iter ne 'alloca.c')
2453 {
2454 my $rewrite = $iter;
2455 $rewrite =~ s/\.c$/.P$myobjext/;
2456 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2457 $rewrite = "^" . quotemeta ($iter) . "\$";
2458 # Only require the file if it is not a built source.
2459 my $bs = var ('BUILT_SOURCES');
2460 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2461 {
2462 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2463 }
2464 }
2465 }
2466 }
2468 sub handle_ALLOCA ($$$)
2469 {
2470 my ($var, $cond, $lt) = @_;
2471 my $myobjext = $lt ? 'lo' : 'o';
2472 $lt ||= '';
2473 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2475 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2476 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2477 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2478 &saw_extension ('.c');
2479 }
2481 # Canonicalize the input parameter
2482 sub canonicalize
2483 {
2484 my ($string) = @_;
2485 $string =~ tr/A-Za-z0-9_\@/_/c;
2486 return $string;
2487 }
2489 # Canonicalize a name, and check to make sure the non-canonical name
2490 # is never used. Returns canonical name. Arguments are name and a
2491 # list of suffixes to check for.
2492 sub check_canonical_spelling
2493 {
2494 my ($name, @suffixes) = @_;
2496 my $xname = &canonicalize ($name);
2497 if ($xname ne $name)
2498 {
2499 foreach my $xt (@suffixes)
2500 {
2501 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2502 }
2503 }
2505 return $xname;
2506 }
2509 # handle_compile ()
2510 # -----------------
2511 # Set up the compile suite.
2512 sub handle_compile ()
2513 {
2514 return
2515 unless $get_object_extension_was_run;
2517 # Boilerplate.
2518 my $default_includes = '';
2519 if (! option 'nostdinc')
2520 {
2521 my @incs = ('-I.', subst ('am__isrc'));
2523 my $var = var 'CONFIG_HEADER';
2524 if ($var)
2525 {
2526 foreach my $hdr (split (' ', $var->variable_value))
2527 {
2528 push @incs, '-I' . dirname ($hdr);
2529 }
2530 }
2531 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2532 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2533 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2534 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2535 # to just put @am__isrc@ right after `-I.', without a space.
2536 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2537 }
2539 my (@mostly_rms, @dist_rms);
2540 foreach my $item (sort keys %compile_clean_files)
2541 {
2542 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2543 {
2544 push (@mostly_rms, "\t-rm -f $item");
2545 }
2546 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2547 {
2548 push (@dist_rms, "\t-rm -f $item");
2549 }
2550 else
2551 {
2552 prog_error 'invalid entry in %compile_clean_files';
2553 }
2554 }
2556 my ($coms, $vars, $rules) =
2557 &file_contents_internal (1, "$libdir/am/compile.am",
2558 new Automake::Location,
2559 ('DEFAULT_INCLUDES' => $default_includes,
2560 'MOSTLYRMS' => join ("\n", @mostly_rms),
2561 'DISTRMS' => join ("\n", @dist_rms)));
2562 $output_vars .= $vars;
2563 $output_rules .= "$coms$rules";
2565 # Check for automatic de-ANSI-fication.
2566 if (option 'ansi2knr')
2567 {
2568 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2569 my $ansi2knr_dir = '';
2571 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2572 TRUE, "ANSI2KNR", "U");
2574 # topdir is where ansi2knr should be.
2575 if ($ansi2knr_filename eq 'ansi2knr')
2576 {
2577 # Only require ansi2knr files if they should appear in
2578 # this directory.
2579 require_file ($ansi2knr_where, FOREIGN,
2580 'ansi2knr.c', 'ansi2knr.1');
2582 # ansi2knr needs to be built before subdirs, so unshift it
2583 # rather then pushing it.
2584 unshift (@all, '$(ANSI2KNR)');
2585 }
2586 else
2587 {
2588 $ansi2knr_dir = dirname ($ansi2knr_filename);
2589 }
2591 $output_rules .= &file_contents ('ansi2knr',
2592 new Automake::Location,
2593 'ANSI2KNR-DIR' => $ansi2knr_dir);
2595 }
2596 }
2598 # handle_libtool ()
2599 # -----------------
2600 # Handle libtool rules.
2601 sub handle_libtool
2602 {
2603 return unless var ('LIBTOOL');
2605 # Libtool requires some files, but only at top level.
2606 # (Starting with Libtool 2.0 we do not have to bother. These
2607 # requirements are done with AC_REQUIRE_AUX_FILE.)
2608 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2609 if $relative_dir eq '.' && ! $libtool_new_api;
2611 my @libtool_rms;
2612 foreach my $item (sort keys %libtool_clean_directories)
2613 {
2614 my $dir = ($item eq '.') ? '' : "$item/";
2615 # .libs is for Unix, _libs for DOS.
2616 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2617 }
2619 check_user_variables 'LIBTOOLFLAGS';
2621 # Output the libtool compilation rules.
2622 $output_rules .= &file_contents ('libtool',
2623 new Automake::Location,
2624 LTRMS => join ("\n", @libtool_rms));
2625 }
2627 # handle_programs ()
2628 # ------------------
2629 # Handle C programs.
2630 sub handle_programs
2631 {
2632 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2633 'bin', 'sbin', 'libexec', 'pkglibexec',
2634 'noinst', 'check');
2635 return if ! @proglist;
2637 my $seen_global_libobjs =
2638 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2640 foreach my $pair (@proglist)
2641 {
2642 my ($where, $one_file) = @$pair;
2644 my $seen_libobjs = 0;
2645 my $obj = get_object_extension '.$(OBJEXT)';
2647 $known_programs{$one_file} = $where;
2649 # Canonicalize names and check for misspellings.
2650 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2651 '_SOURCES', '_OBJECTS',
2652 '_DEPENDENCIES');
2654 $where->push_context ("while processing program `$one_file'");
2655 $where->set (INTERNAL->get);
2657 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2658 NONLIBTOOL => 1, LIBTOOL => 0);
2660 if (var ($xname . "_LDADD"))
2661 {
2662 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2663 }
2664 else
2665 {
2666 # User didn't define prog_LDADD override. So do it.
2667 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2669 # This does a bit too much work. But we need it to
2670 # generate _DEPENDENCIES when appropriate.
2671 if (var ('LDADD'))
2672 {
2673 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2674 }
2675 }
2677 reject_var ($xname . '_LIBADD',
2678 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2680 set_seen ($xname . '_DEPENDENCIES');
2681 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2682 set_seen ($xname . '_LDFLAGS');
2684 # Determine program to use for link.
2685 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2686 $vlink = verbose_flag ($vlink || 'GEN');
2688 # If the resulting program lies into a subdirectory,
2689 # make sure this directory will exist.
2690 my $dirstamp = require_build_directory_maybe ($one_file);
2692 $libtool_clean_directories{dirname ($one_file)} = 1;
2694 $output_rules .= &file_contents ('program',
2695 $where,
2696 PROGRAM => $one_file,
2697 XPROGRAM => $xname,
2698 XLINK => $xlink,
2699 VERBOSE => $vlink,
2700 DIRSTAMP => $dirstamp,
2701 EXEEXT => '$(EXEEXT)');
2703 if ($seen_libobjs || $seen_global_libobjs)
2704 {
2705 if (var ($xname . '_LDADD'))
2706 {
2707 &check_libobjs_sources ($xname, $xname . '_LDADD');
2708 }
2709 elsif (var ('LDADD'))
2710 {
2711 &check_libobjs_sources ($xname, 'LDADD');
2712 }
2713 }
2714 }
2715 }
2718 # handle_libraries ()
2719 # -------------------
2720 # Handle libraries.
2721 sub handle_libraries
2722 {
2723 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2724 'lib', 'pkglib', 'noinst', 'check');
2725 return if ! @liblist;
2727 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2728 'noinst', 'check');
2730 if (@prefix)
2731 {
2732 my $var = rvar ($prefix[0] . '_LIBRARIES');
2733 $var->requires_variables ('library used', 'RANLIB');
2734 }
2736 &define_variable ('AR', 'ar', INTERNAL);
2737 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2738 &define_verbose_tagvar ('AR');
2740 foreach my $pair (@liblist)
2741 {
2742 my ($where, $onelib) = @$pair;
2744 my $seen_libobjs = 0;
2745 # Check that the library fits the standard naming convention.
2746 my $bn = basename ($onelib);
2747 if ($bn !~ /^lib.*\.a$/)
2748 {
2749 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2750 my $suggestion = dirname ($onelib) . "/$bn";
2751 $suggestion =~ s|^\./||g;
2752 msg ('error-gnu/warn', $where,
2753 "`$onelib' is not a standard library name\n"
2754 . "did you mean `$suggestion'?")
2755 }
2757 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2759 $where->push_context ("while processing library `$onelib'");
2760 $where->set (INTERNAL->get);
2762 my $obj = get_object_extension '.$(OBJEXT)';
2764 # Canonicalize names and check for misspellings.
2765 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2766 '_OBJECTS', '_DEPENDENCIES',
2767 '_AR');
2769 if (! var ($xlib . '_AR'))
2770 {
2771 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2772 }
2774 # Generate support for conditional object inclusion in
2775 # libraries.
2776 if (var ($xlib . '_LIBADD'))
2777 {
2778 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2779 {
2780 $seen_libobjs = 1;
2781 }
2782 }
2783 else
2784 {
2785 &define_variable ($xlib . "_LIBADD", '', $where);
2786 }
2788 reject_var ($xlib . '_LDADD',
2789 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2791 # Make sure we at look at this.
2792 set_seen ($xlib . '_DEPENDENCIES');
2793 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2795 &handle_source_transform ($xlib, $onelib, $obj, $where,
2796 NONLIBTOOL => 1, LIBTOOL => 0);
2798 # If the resulting library lies into a subdirectory,
2799 # make sure this directory will exist.
2800 my $dirstamp = require_build_directory_maybe ($onelib);
2801 my $verbose = verbose_flag ('AR');
2802 my $silent = silent_flag ();
2804 $output_rules .= &file_contents ('library',
2805 $where,
2806 VERBOSE => $verbose,
2807 SILENT => $silent,
2808 LIBRARY => $onelib,
2809 XLIBRARY => $xlib,
2810 DIRSTAMP => $dirstamp);
2812 if ($seen_libobjs)
2813 {
2814 if (var ($xlib . '_LIBADD'))
2815 {
2816 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2817 }
2818 }
2819 }
2820 }
2823 # handle_ltlibraries ()
2824 # ---------------------
2825 # Handle shared libraries.
2826 sub handle_ltlibraries
2827 {
2828 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2829 'noinst', 'lib', 'pkglib', 'check');
2830 return if ! @liblist;
2832 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2833 'noinst', 'check');
2835 if (@prefix)
2836 {
2837 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2838 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2839 }
2841 my %instdirs = ();
2842 my %instsubdirs = ();
2843 my %instconds = ();
2844 my %liblocations = (); # Location (in Makefile.am) of each library.
2846 foreach my $key (@prefix)
2847 {
2848 # Get the installation directory of each library.
2849 my $dir = $key;
2850 my $strip_subdir = 1;
2851 if ($dir =~ /^nobase_/)
2852 {
2853 $dir =~ s/^nobase_//;
2854 $strip_subdir = 0;
2855 }
2856 my $var = rvar ($key . '_LTLIBRARIES');
2858 # We reject libraries which are installed in several places
2859 # in the same condition, because we can only specify one
2860 # `-rpath' option.
2861 $var->traverse_recursively
2862 (sub
2863 {
2864 my ($var, $val, $cond, $full_cond) = @_;
2865 my $hcond = $full_cond->human;
2866 my $where = $var->rdef ($cond)->location;
2867 my $ldir = '';
2868 $ldir = '/' . dirname ($val)
2869 if (!$strip_subdir);
2870 # A library cannot be installed in different directories
2871 # in overlapping conditions.
2872 if (exists $instconds{$val})
2873 {
2874 my ($msg, $acond) =
2875 $instconds{$val}->ambiguous_p ($val, $full_cond);
2877 if ($msg)
2878 {
2879 error ($where, $msg, partial => 1);
2880 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2881 $dirtxt = "built for `$dir'"
2882 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2883 my $dircond =
2884 $full_cond->true ? "" : " in condition $hcond";
2886 error ($where, "`$val' should be $dirtxt$dircond ...",
2887 partial => 1);
2889 my $hacond = $acond->human;
2890 my $adir = $instdirs{$val}{$acond};
2891 my $adirtxt = "installed in `$adir'";
2892 $adirtxt = "built for `$adir'"
2893 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2894 || $adir eq 'check');
2895 my $adircond = $acond->true ? "" : " in condition $hacond";
2897 my $onlyone = ($dir ne $adir) ?
2898 ("\nLibtool libraries can be built for only one "
2899 . "destination.") : "";
2901 error ($liblocations{$val}{$acond},
2902 "... and should also be $adirtxt$adircond.$onlyone");
2903 return;
2904 }
2905 }
2906 else
2907 {
2908 $instconds{$val} = new Automake::DisjConditions;
2909 }
2910 $instdirs{$val}{$full_cond} = $dir;
2911 $instsubdirs{$val}{$full_cond} = $ldir;
2912 $liblocations{$val}{$full_cond} = $where;
2913 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2914 },
2915 sub
2916 {
2917 return ();
2918 },
2919 skip_ac_subst => 1);
2920 }
2922 foreach my $pair (@liblist)
2923 {
2924 my ($where, $onelib) = @$pair;
2926 my $seen_libobjs = 0;
2927 my $obj = get_object_extension '.lo';
2929 # Canonicalize names and check for misspellings.
2930 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2931 '_SOURCES', '_OBJECTS',
2932 '_DEPENDENCIES');
2934 # Check that the library fits the standard naming convention.
2935 my $libname_rx = '^lib.*\.la';
2936 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2937 my $ldvar2 = var ('LDFLAGS');
2938 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2939 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2940 {
2941 # Relax name checking for libtool modules.
2942 $libname_rx = '\.la';
2943 }
2945 my $bn = basename ($onelib);
2946 if ($bn !~ /$libname_rx$/)
2947 {
2948 my $type = 'library';
2949 if ($libname_rx eq '\.la')
2950 {
2951 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2952 $type = 'module';
2953 }
2954 else
2955 {
2956 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2957 }
2958 my $suggestion = dirname ($onelib) . "/$bn";
2959 $suggestion =~ s|^\./||g;
2960 msg ('error-gnu/warn', $where,
2961 "`$onelib' is not a standard libtool $type name\n"
2962 . "did you mean `$suggestion'?")
2963 }
2965 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2967 $where->push_context ("while processing Libtool library `$onelib'");
2968 $where->set (INTERNAL->get);
2970 # Make sure we look at these.
2971 set_seen ($xlib . '_LDFLAGS');
2972 set_seen ($xlib . '_DEPENDENCIES');
2973 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2975 # Generate support for conditional object inclusion in
2976 # libraries.
2977 if (var ($xlib . '_LIBADD'))
2978 {
2979 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2980 {
2981 $seen_libobjs = 1;
2982 }
2983 }
2984 else
2985 {
2986 &define_variable ($xlib . "_LIBADD", '', $where);
2987 }
2989 reject_var ("${xlib}_LDADD",
2990 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2993 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2994 NONLIBTOOL => 0, LIBTOOL => 1);
2996 # Determine program to use for link.
2997 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2998 $vlink = verbose_flag ($vlink || 'GEN');
3000 my $rpathvar = "am_${xlib}_rpath";
3001 my $rpath = "\$($rpathvar)";
3002 foreach my $rcond ($instconds{$onelib}->conds)
3003 {
3004 my $val;
3005 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
3006 || $instdirs{$onelib}{$rcond} eq 'noinst'
3007 || $instdirs{$onelib}{$rcond} eq 'check')
3008 {
3009 # It's an EXTRA_ library, so we can't specify -rpath,
3010 # because we don't know where the library will end up.
3011 # The user probably knows, but generally speaking automake
3012 # doesn't -- and in fact configure could decide
3013 # dynamically between two different locations.
3014 $val = '';
3015 }
3016 else
3017 {
3018 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
3019 $val .= $instsubdirs{$onelib}{$rcond}
3020 if defined $instsubdirs{$onelib}{$rcond};
3021 }
3022 if ($rcond->true)
3023 {
3024 # If $rcond is true there is only one condition and
3025 # there is no point defining an helper variable.
3026 $rpath = $val;
3027 }
3028 else
3029 {
3030 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3031 }
3032 }
3034 # If the resulting library lies into a subdirectory,
3035 # make sure this directory will exist.
3036 my $dirstamp = require_build_directory_maybe ($onelib);
3038 # Remember to cleanup .libs/ in this directory.
3039 my $dirname = dirname $onelib;
3040 $libtool_clean_directories{$dirname} = 1;
3042 $output_rules .= &file_contents ('ltlibrary',
3043 $where,
3044 LTLIBRARY => $onelib,
3045 XLTLIBRARY => $xlib,
3046 RPATH => $rpath,
3047 XLINK => $xlink,
3048 VERBOSE => $vlink,
3049 DIRSTAMP => $dirstamp);
3050 if ($seen_libobjs)
3051 {
3052 if (var ($xlib . '_LIBADD'))
3053 {
3054 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3055 }
3056 }
3057 }
3058 }
3060 # See if any _SOURCES variable were misspelled.
3061 sub check_typos ()
3062 {
3063 # It is ok if the user sets this particular variable.
3064 set_seen 'AM_LDFLAGS';
3066 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3067 {
3068 foreach my $var (variables $primary)
3069 {
3070 my $varname = $var->name;
3071 # A configure variable is always legitimate.
3072 next if exists $configure_vars{$varname};
3074 for my $cond ($var->conditions->conds)
3075 {
3076 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3077 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3078 . " program or\nlibrary has `$1' as canonical name"
3079 . " (possible typo)")
3080 unless $var->rdef ($cond)->seen;
3081 }
3082 }
3083 }
3084 }
3087 # Handle scripts.
3088 sub handle_scripts
3089 {
3090 # NOTE we no longer automatically clean SCRIPTS, because it is
3091 # useful to sometimes distribute scripts verbatim. This happens
3092 # e.g. in Automake itself.
3093 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3094 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
3095 'noinst', 'check');
3096 }
3101 ## ------------------------ ##
3102 ## Handling Texinfo files. ##
3103 ## ------------------------ ##
3105 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3106 # &scan_texinfo_file ($FILENAME)
3107 # ------------------------------
3108 # $OUTFILE - name of the info file produced by $FILENAME.
3109 # $VFILE - name of the version.texi file used (undef if none).
3110 # @CLEAN_FILES - list of byproducts (indexes etc.)
3111 sub scan_texinfo_file ($)
3112 {
3113 my ($filename) = @_;
3115 # Some of the following extensions are always created, no matter
3116 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3117 # are only created when they are used. We used to scan $FILENAME
3118 # for their use, but that is not enough: they could be used in
3119 # included files. We can't scan included files because we don't
3120 # know the include path. Therefore we always erase these files, no
3121 # matter whether they are used or not.
3122 #
3123 # (tmp is only created if an @macro is used and a certain e-TeX
3124 # feature is not available.)
3125 my %clean_suffixes =
3126 map { $_ => 1 } (qw(aux log toc tmp
3127 cp cps
3128 fn fns
3129 ky kys
3130 vr vrs
3131 tp tps
3132 pg pgs)); # grep 'new.*index' texinfo.tex
3134 my $texi = new Automake::XFile "< $filename";
3135 verb "reading $filename";
3137 my ($outfile, $vfile);
3138 while ($_ = $texi->getline)
3139 {
3140 if (/^\@setfilename +(\S+)/)
3141 {
3142 # Honor only the first @setfilename. (It's possible to have
3143 # more occurrences later if the manual shows examples of how
3144 # to use @setfilename...)
3145 next if $outfile;
3147 $outfile = $1;
3148 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3149 {
3150 error ("$filename:$.",
3151 "output `$outfile' has unrecognized extension");
3152 return;
3153 }
3154 }
3155 # A "version.texi" file is actually any file whose name matches
3156 # "vers*.texi".
3157 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3158 {
3159 $vfile = $1;
3160 }
3162 # Try to find new or unused indexes.
3164 # Creating a new category of index.
3165 elsif (/^\@def(code)?index (\w+)/)
3166 {
3167 $clean_suffixes{$2} = 1;
3168 $clean_suffixes{"$2s"} = 1;
3169 }
3171 # Merging an index into an another.
3172 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3173 {
3174 delete $clean_suffixes{"$2s"};
3175 $clean_suffixes{"$3s"} = 1;
3176 }
3178 }
3180 if (! $outfile)
3181 {
3182 err_am "`$filename' missing \@setfilename";
3183 return;
3184 }
3186 my $infobase = basename ($filename);
3187 $infobase =~ s/\.te?xi(nfo)?$//;
3188 return ($outfile, $vfile,
3189 map { "$infobase.$_" } (sort keys %clean_suffixes));
3190 }
3193 # ($DIRSTAMP, @CLEAN_FILES)
3194 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3195 # ------------------------------------------------------------------
3196 # SOURCE - the source Texinfo file
3197 # DEST - the destination Info file
3198 # INSRC - whether DEST should be built in the source tree
3199 # DEPENDENCIES - known dependencies
3200 sub output_texinfo_build_rules ($$$@)
3201 {
3202 my ($source, $dest, $insrc, @deps) = @_;
3204 # Split `a.texi' into `a' and `.texi'.
3205 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3206 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3208 $ssfx ||= "";
3209 $dsfx ||= "";
3211 # We can output two kinds of rules: the "generic" rules use Make
3212 # suffix rules and are appropriate when $source and $dest do not lie
3213 # in a sub-directory; the "specific" rules are needed in the other
3214 # case.
3215 #
3216 # The former are output only once (this is not really apparent here,
3217 # but just remember that some logic deeper in Automake will not
3218 # output the same rule twice); while the later need to be output for
3219 # each Texinfo source.
3220 my $generic;
3221 my $makeinfoflags;
3222 my $sdir = dirname $source;
3223 if ($sdir eq '.' && dirname ($dest) eq '.')
3224 {
3225 $generic = 1;
3226 $makeinfoflags = '-I $(srcdir)';
3227 }
3228 else
3229 {
3230 $generic = 0;
3231 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3232 }
3234 # A directory can contain two kinds of info files: some built in the
3235 # source tree, and some built in the build tree. The rules are
3236 # different in each case. However we cannot output two different
3237 # set of generic rules. Because in-source builds are more usual, we
3238 # use generic rules in this case and fall back to "specific" rules
3239 # for build-dir builds. (It should not be a problem to invert this
3240 # if needed.)
3241 $generic = 0 unless $insrc;
3243 # We cannot use a suffix rule to build info files with an empty
3244 # extension. Otherwise we would output a single suffix inference
3245 # rule, with separate dependencies, as in
3246 #
3247 # .texi:
3248 # $(MAKEINFO) ...
3249 # foo.info: foo.texi
3250 #
3251 # which confuse Solaris make. (See the Autoconf manual for
3252 # details.) Therefore we use a specific rule in this case. This
3253 # applies to info files only (dvi and pdf files always have an
3254 # extension).
3255 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3257 # If the resulting file lie into a subdirectory,
3258 # make sure this directory will exist.
3259 my $dirstamp = require_build_directory_maybe ($dest);
3261 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3263 $output_rules .= file_contents ('texibuild',
3264 new Automake::Location,
3265 DEPS => "@deps",
3266 DEST_PREFIX => $dpfx,
3267 DEST_INFO_PREFIX => $dipfx,
3268 DEST_SUFFIX => $dsfx,
3269 DIRSTAMP => $dirstamp,
3270 GENERIC => $generic,
3271 GENERIC_INFO => $generic_info,
3272 INSRC => $insrc,
3273 MAKEINFOFLAGS => $makeinfoflags,
3274 SOURCE => ($generic
3275 ? '$<' : $source),
3276 SOURCE_INFO => ($generic_info
3277 ? '$<' : $source),
3278 SOURCE_REAL => $source,
3279 SOURCE_SUFFIX => $ssfx,
3280 );
3281 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3282 }
3285 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3286 # handle_texinfo_helper ($info_texinfos)
3287 # --------------------------------------
3288 # Handle all Texinfo source; helper for handle_texinfo.
3289 sub handle_texinfo_helper ($)
3290 {
3291 my ($info_texinfos) = @_;
3292 my (@infobase, @info_deps_list, @texi_deps);
3293 my %versions;
3294 my $done = 0;
3295 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3297 # Build a regex matching user-cleaned files.
3298 my $d = var 'DISTCLEANFILES';
3299 my $c = var 'CLEANFILES';
3300 my @f = ();
3301 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3302 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3303 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3304 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3306 foreach my $texi
3307 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3308 {
3309 my $infobase = $texi;
3310 $infobase =~ s/\.(txi|texinfo|texi)$//;
3312 if ($infobase eq $texi)
3313 {
3314 # FIXME: report line number.
3315 err_am "texinfo file `$texi' has unrecognized extension";
3316 next;
3317 }
3319 push @infobase, $infobase;
3321 # If 'version.texi' is referenced by input file, then include
3322 # automatic versioning capability.
3323 my ($out_file, $vtexi, @clean_files) =
3324 scan_texinfo_file ("$relative_dir/$texi")
3325 or next;
3326 push (@mostly_cleans, @clean_files);
3328 # If the Texinfo source is in a subdirectory, create the
3329 # resulting info in this subdirectory. If it is in the current
3330 # directory, try hard to not prefix "./" because it breaks the
3331 # generic rules.
3332 my $outdir = dirname ($texi) . '/';
3333 $outdir = "" if $outdir eq './';
3334 $out_file = $outdir . $out_file;
3336 # Until Automake 1.6.3, .info files were built in the
3337 # source tree. This was an obstacle to the support of
3338 # non-distributed .info files, and non-distributed .texi
3339 # files.
3340 #
3341 # * Non-distributed .texi files is important in some packages
3342 # where .texi files are built at make time, probably using
3343 # other binaries built in the package itself, maybe using
3344 # tools or information found on the build host. Because
3345 # these files are not distributed they are always rebuilt
3346 # at make time; they should therefore not lie in the source
3347 # directory. One plan was to support this using
3348 # nodist_info_TEXINFOS or something similar. (Doing this
3349 # requires some sanity checks. For instance Automake should
3350 # not allow:
3351 # dist_info_TEXINFOS = foo.texi
3352 # nodist_foo_TEXINFOS = included.texi
3353 # because a distributed file should never depend on a
3354 # non-distributed file.)
3355 #
3356 # * If .texi files are not distributed, then .info files should
3357 # not be distributed either. There are also cases where one
3358 # wants to distribute .texi files, but does not want to
3359 # distribute the .info files. For instance the Texinfo package
3360 # distributes the tool used to build these files; it would
3361 # be a waste of space to distribute them. It's not clear
3362 # which syntax we should use to indicate that .info files should
3363 # not be distributed. Akim Demaille suggested that eventually
3364 # we switch to a new syntax:
3365 # | Maybe we should take some inspiration from what's already
3366 # | done in the rest of Automake. Maybe there is too much
3367 # | syntactic sugar here, and you want
3368 # | nodist_INFO = bar.info
3369 # | dist_bar_info_SOURCES = bar.texi
3370 # | bar_texi_DEPENDENCIES = foo.texi
3371 # | with a bit of magic to have bar.info represent the whole
3372 # | bar*info set. That's a lot more verbose that the current
3373 # | situation, but it is # not new, hence the user has less
3374 # | to learn.
3375 # |
3376 # | But there is still too much room for meaningless specs:
3377 # | nodist_INFO = bar.info
3378 # | dist_bar_info_SOURCES = bar.texi
3379 # | dist_PS = bar.ps something-written-by-hand.ps
3380 # | nodist_bar_ps_SOURCES = bar.texi
3381 # | bar_texi_DEPENDENCIES = foo.texi
3382 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3383 #
3384 # Back to the point, it should be clear that in order to support
3385 # non-distributed .info files, we need to build them in the
3386 # build tree, not in the source tree (non-distributed .texi
3387 # files are less of a problem, because we do not output build
3388 # rules for them). In Automake 1.7 .info build rules have been
3389 # largely cleaned up so that .info files get always build in the
3390 # build tree, even when distributed. The idea was that
3391 # (1) if during a VPATH build the .info file was found to be
3392 # absent or out-of-date (in the source tree or in the
3393 # build tree), Make would rebuild it in the build tree.
3394 # If an up-to-date source-tree of the .info file existed,
3395 # make would not rebuild it in the build tree.
3396 # (2) having two copies of .info files, one in the source tree
3397 # and one (newer) in the build tree is not a problem
3398 # because `make dist' always pick files in the build tree
3399 # first.
3400 # However it turned out the be a bad idea for several reasons:
3401 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3402 # like GNU Make on point (1) above. These implementations
3403 # of Make would always rebuild .info files in the build
3404 # tree, even if such files were up to date in the source
3405 # tree. Consequently, it was impossible to perform a VPATH
3406 # build of a package containing Texinfo files using these
3407 # Make implementations.
3408 # (Refer to the Autoconf Manual, section "Limitation of
3409 # Make", paragraph "VPATH", item "target lookup", for
3410 # an account of the differences between these
3411 # implementations.)
3412 # * The GNU Coding Standards require these files to be built
3413 # in the source-tree (when they are distributed, that is).
3414 # * Keeping a fresher copy of distributed files in the
3415 # build tree can be annoying during development because
3416 # - if the files is kept under CVS, you really want it
3417 # to be updated in the source tree
3418 # - it is confusing that `make distclean' does not erase
3419 # all files in the build tree.
3420 #
3421 # Consequently, starting with Automake 1.8, .info files are
3422 # built in the source tree again. Because we still plan to
3423 # support non-distributed .info files at some point, we
3424 # have a single variable ($INSRC) that controls whether
3425 # the current .info file must be built in the source tree
3426 # or in the build tree. Actually this variable is switched
3427 # off for .info files that appear to be cleaned; this is
3428 # for backward compatibility with package such as Texinfo,
3429 # which do things like
3430 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3431 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3432 # # Do not create info files for distribution.
3433 # dist-info:
3434 # in order not to distribute .info files.
3435 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3437 my $soutdir = '$(srcdir)/' . $outdir;
3438 $outdir = $soutdir if $insrc;
3440 # If user specified file_TEXINFOS, then use that as explicit
3441 # dependency list.
3442 @texi_deps = ();
3443 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3445 my $canonical = canonicalize ($infobase);
3446 if (var ($canonical . "_TEXINFOS"))
3447 {
3448 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3449 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3450 }
3452 my ($dirstamp, @cfiles) =
3453 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3454 push (@texi_cleans, @cfiles);
3456 push (@info_deps_list, $out_file);
3458 # If a vers*.texi file is needed, emit the rule.
3459 if ($vtexi)
3460 {
3461 err_am ("`$vtexi', included in `$texi', "
3462 . "also included in `$versions{$vtexi}'")
3463 if defined $versions{$vtexi};
3464 $versions{$vtexi} = $texi;
3466 # We number the stamp-vti files. This is doable since the
3467 # actual names don't matter much. We only number starting
3468 # with the second one, so that the common case looks nice.
3469 my $vti = ($done ? $done : 'vti');
3470 ++$done;
3472 # This is ugly, but it is our historical practice.
3473 if ($config_aux_dir_set_in_configure_ac)
3474 {
3475 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3476 'mdate-sh');
3477 }
3478 else
3479 {
3480 require_file_with_macro (TRUE, 'info_TEXINFOS',
3481 FOREIGN, 'mdate-sh');
3482 }
3484 my $conf_dir;
3485 if ($config_aux_dir_set_in_configure_ac)
3486 {
3487 $conf_dir = "$am_config_aux_dir/";
3488 }
3489 else
3490 {
3491 $conf_dir = '$(srcdir)/';
3492 }
3493 $output_rules .= file_contents ('texi-vers',
3494 new Automake::Location,
3495 TEXI => $texi,
3496 VTI => $vti,
3497 STAMPVTI => "${soutdir}stamp-$vti",
3498 VTEXI => "$soutdir$vtexi",
3499 MDDIR => $conf_dir,
3500 DIRSTAMP => $dirstamp);
3501 }
3502 }
3504 # Handle location of texinfo.tex.
3505 my $need_texi_file = 0;
3506 my $texinfodir;
3507 if (var ('TEXINFO_TEX'))
3508 {
3509 # The user defined TEXINFO_TEX so assume he knows what he is
3510 # doing.
3511 $texinfodir = ('$(srcdir)/'
3512 . dirname (variable_value ('TEXINFO_TEX')));
3513 }
3514 elsif (option 'cygnus')
3515 {
3516 $texinfodir = '$(top_srcdir)/../texinfo';
3517 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3518 }
3519 elsif ($config_aux_dir_set_in_configure_ac)
3520 {
3521 $texinfodir = $am_config_aux_dir;
3522 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3523 $need_texi_file = 2; # so that we require_conf_file later
3524 }
3525 else
3526 {
3527 $texinfodir = '$(srcdir)';
3528 $need_texi_file = 1;
3529 }
3530 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3532 push (@dist_targets, 'dist-info');
3534 if (! option 'no-installinfo')
3535 {
3536 # Make sure documentation is made and installed first. Use
3537 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3538 # get run twice during "make all".
3539 unshift (@all, '$(INFO_DEPS)');
3540 }
3542 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3543 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3544 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3545 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3547 # This next isn't strictly needed now -- the places that look here
3548 # could easily be changed to look in info_TEXINFOS. But this is
3549 # probably better, in case noinst_TEXINFOS is ever supported.
3550 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3552 # Do some error checking. Note that this file is not required
3553 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3554 # up above.
3555 if ($need_texi_file && ! option 'no-texinfo.tex')
3556 {
3557 if ($need_texi_file > 1)
3558 {
3559 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3560 'texinfo.tex');
3561 }
3562 else
3563 {
3564 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3565 'texinfo.tex');
3566 }
3567 }
3569 return (makefile_wrap ("", "\t ", @mostly_cleans),
3570 makefile_wrap ("", "\t ", @texi_cleans),
3571 makefile_wrap ("", "\t ", @maint_cleans));
3572 }
3575 # handle_texinfo ()
3576 # -----------------
3577 # Handle all Texinfo source.
3578 sub handle_texinfo ()
3579 {
3580 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3581 # FIXME: I think this is an obsolete future feature name.
3582 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3584 my $info_texinfos = var ('info_TEXINFOS');
3585 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3586 if ($info_texinfos)
3587 {
3588 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3589 chomp $mostlyclean;
3590 chomp $clean;
3591 chomp $maintclean;
3592 }
3594 $output_rules .= file_contents ('texinfos',
3595 new Automake::Location,
3596 MOSTLYCLEAN => $mostlyclean,
3597 TEXICLEAN => $clean,
3598 MAINTCLEAN => $maintclean,
3599 'LOCAL-TEXIS' => !!$info_texinfos);
3600 }
3603 # Handle any man pages.
3604 sub handle_man_pages
3605 {
3606 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3608 # Find all the sections in use. We do this by first looking for
3609 # "standard" sections, and then looking for any additional
3610 # sections used in man_MANS.
3611 my (%sections, %notrans_sections, %trans_sections,
3612 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3613 # We handle nodist_ for uniformity. man pages aren't distributed
3614 # by default so it isn't actually very important.
3615 foreach my $npfx ('', 'notrans_')
3616 {
3617 foreach my $pfx ('', 'dist_', 'nodist_')
3618 {
3619 # Add more sections as needed.
3620 foreach my $section ('0'..'9', 'n', 'l')
3621 {
3622 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3623 if (var ($varname))
3624 {
3625 $sections{$section} = 1;
3626 $varname = '$(' . $varname . ')';
3627 if ($npfx eq 'notrans_')
3628 {
3629 $notrans_sections{$section} = 1;
3630 $notrans_sect_vars{$varname} = 1;
3631 }
3632 else
3633 {
3634 $trans_sections{$section} = 1;
3635 $trans_sect_vars{$varname} = 1;
3636 }
3638 &push_dist_common ($varname)
3639 if $pfx eq 'dist_';
3640 }
3641 }
3643 my $varname = $npfx . $pfx . 'man_MANS';
3644 my $var = var ($varname);
3645 if ($var)
3646 {
3647 foreach ($var->value_as_list_recursive)
3648 {
3649 # A page like `foo.1c' goes into man1dir.
3650 if (/\.([0-9a-z])([a-z]*)$/)
3651 {
3652 $sections{$1} = 1;
3653 if ($npfx eq 'notrans_')
3654 {
3655 $notrans_sections{$1} = 1;
3656 }
3657 else
3658 {
3659 $trans_sections{$1} = 1;
3660 }
3661 }
3662 }
3664 $varname = '$(' . $varname . ')';
3665 if ($npfx eq 'notrans_')
3666 {
3667 $notrans_vars{$varname} = 1;
3668 }
3669 else
3670 {
3671 $trans_vars{$varname} = 1;
3672 }
3673 &push_dist_common ($varname)
3674 if $pfx eq 'dist_';
3675 }
3676 }
3677 }
3679 return unless %sections;
3681 my @unsorted_deps;
3683 # Build section independent variables.
3684 my $have_notrans = %notrans_vars;
3685 my @notrans_list = sort keys %notrans_vars;
3686 my $have_trans = %trans_vars;
3687 my @trans_list = sort keys %trans_vars;
3689 # Now for each section, generate an install and uninstall rule.
3690 # Sort sections so output is deterministic.
3691 foreach my $section (sort keys %sections)
3692 {
3693 # Build section dependent variables.
3694 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3695 my $trans_mans = $have_trans || exists $trans_sections{$section};
3696 my (%notrans_this_sect, %trans_this_sect);
3697 my $expr = 'man' . $section . '_MANS';
3698 foreach my $varname (keys %notrans_sect_vars)
3699 {
3700 if ($varname =~ /$expr/)
3701 {
3702 $notrans_this_sect{$varname} = 1;
3703 }
3704 }
3705 foreach my $varname (keys %trans_sect_vars)
3706 {
3707 if ($varname =~ /$expr/)
3708 {
3709 $trans_this_sect{$varname} = 1;
3710 }
3711 }
3712 my @notrans_sect_list = sort keys %notrans_this_sect;
3713 my @trans_sect_list = sort keys %trans_this_sect;
3714 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3715 keys %notrans_this_sect, keys %trans_this_sect);
3716 my @deps = sort @unsorted_deps;
3717 $output_rules .= &file_contents ('mans',
3718 new Automake::Location,
3719 SECTION => $section,
3720 DEPS => "@deps",
3721 NOTRANS_MANS => $notrans_mans,
3722 NOTRANS_SECT_LIST => "@notrans_sect_list",
3723 HAVE_NOTRANS => $have_notrans,
3724 NOTRANS_LIST => "@notrans_list",
3725 TRANS_MANS => $trans_mans,
3726 TRANS_SECT_LIST => "@trans_sect_list",
3727 HAVE_TRANS => $have_trans,
3728 TRANS_LIST => "@trans_list");
3729 }
3731 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3732 keys %notrans_sect_vars, keys %trans_sect_vars);
3733 my @mans = sort @unsorted_deps;
3734 $output_vars .= file_contents ('mans-vars',
3735 new Automake::Location,
3736 MANS => "@mans");
3738 push (@all, '$(MANS)')
3739 unless option 'no-installman';
3740 }
3742 # Handle DATA variables.
3743 sub handle_data
3744 {
3745 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3746 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3747 'ps', 'sysconf', 'sharedstate', 'localstate',
3748 'pkgdata', 'lisp', 'noinst', 'check');
3749 }
3751 # Handle TAGS.
3752 sub handle_tags
3753 {
3754 my @tag_deps = ();
3755 my @ctag_deps = ();
3756 if (var ('SUBDIRS'))
3757 {
3758 $output_rules .= ("tags-recursive:\n"
3759 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3760 # Never fail here if a subdir fails; it
3761 # isn't important.
3762 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3763 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3764 . "\tdone\n");
3765 push (@tag_deps, 'tags-recursive');
3766 &depend ('.PHONY', 'tags-recursive');
3767 &depend ('.MAKE', 'tags-recursive');
3769 $output_rules .= ("ctags-recursive:\n"
3770 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3771 # Never fail here if a subdir fails; it
3772 # isn't important.
3773 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3774 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3775 . "\tdone\n");
3776 push (@ctag_deps, 'ctags-recursive');
3777 &depend ('.PHONY', 'ctags-recursive');
3778 &depend ('.MAKE', 'ctags-recursive');
3779 }
3781 if (&saw_sources_p (1)
3782 || var ('ETAGS_ARGS')
3783 || @tag_deps)
3784 {
3785 my @config;
3786 foreach my $spec (@config_headers)
3787 {
3788 my ($out, @ins) = split_config_file_spec ($spec);
3789 foreach my $in (@ins)
3790 {
3791 # If the config header source is in this directory,
3792 # require it.
3793 push @config, basename ($in)
3794 if $relative_dir eq dirname ($in);
3795 }
3796 }
3797 $output_rules .= &file_contents ('tags',
3798 new Automake::Location,
3799 CONFIG => "@config",
3800 TAGSDIRS => "@tag_deps",
3801 CTAGSDIRS => "@ctag_deps");
3803 set_seen 'TAGS_DEPENDENCIES';
3804 }
3805 elsif (reject_var ('TAGS_DEPENDENCIES',
3806 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3807 . "without\nsources or `ETAGS_ARGS'"))
3808 {
3809 }
3810 else
3811 {
3812 # Every Makefile must define some sort of TAGS rule.
3813 # Otherwise, it would be possible for a top-level "make TAGS"
3814 # to fail because some subdirectory failed.
3815 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3816 # Ditto ctags.
3817 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3818 }
3819 }
3821 # Handle multilib support.
3822 sub handle_multilib
3823 {
3824 if ($seen_multilib && $relative_dir eq '.')
3825 {
3826 $output_rules .= &file_contents ('multilib', new Automake::Location);
3827 push (@all, 'all-multi');
3828 }
3829 }
3832 # user_phony_rule ($NAME)
3833 # -----------------------
3834 # Return false if rule $NAME does not exist. Otherwise,
3835 # declare it as phony, complete its definition (in case it is
3836 # conditional), and return its Automake::Rule instance.
3837 sub user_phony_rule ($)
3838 {
3839 my ($name) = @_;
3840 my $rule = rule $name;
3841 if ($rule)
3842 {
3843 depend ('.PHONY', $name);
3844 # Define $NAME in all condition where it is not already defined,
3845 # so that it is always OK to depend on $NAME.
3846 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3847 {
3848 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3849 $c, INTERNAL);
3850 $output_rules .= $c->subst_string . "$name:\n";
3851 }
3852 }
3853 return $rule;
3854 }
3857 # $BOOLEAN
3858 # &for_dist_common ($A, $B)
3859 # -------------------------
3860 # Subroutine for &handle_dist: sort files to dist.
3861 #
3862 # We put README first because it then becomes easier to make a
3863 # Usenet-compliant shar file (in these, README must be first).
3864 #
3865 # FIXME: do more ordering of files here.
3866 sub for_dist_common
3867 {
3868 return 0
3869 if $a eq $b;
3870 return -1
3871 if $a eq 'README';
3872 return 1
3873 if $b eq 'README';
3874 return $a cmp $b;
3875 }
3877 # handle_dist
3878 # -----------
3879 # Handle 'dist' target.
3880 sub handle_dist ()
3881 {
3882 # Substitutions for distdir.am
3883 my %transform;
3885 # Define DIST_SUBDIRS. This must always be done, regardless of the
3886 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3887 my $subdirs = var ('SUBDIRS');
3888 if ($subdirs)
3889 {
3890 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3891 # to all possible directories, and use it. If DIST_SUBDIRS is
3892 # defined, just use it.
3894 # Note that we check DIST_SUBDIRS first on purpose, so that
3895 # we don't call has_conditional_contents for now reason.
3896 # (In the past one project used so many conditional subdirectories
3897 # that calling has_conditional_contents on SUBDIRS caused
3898 # automake to grow to 150Mb -- this should not happen with
3899 # the current implementation of has_conditional_contents,
3900 # but it's more efficient to avoid the call anyway.)
3901 if (var ('DIST_SUBDIRS'))
3902 {
3903 }
3904 elsif ($subdirs->has_conditional_contents)
3905 {
3906 define_pretty_variable
3907 ('DIST_SUBDIRS', TRUE, INTERNAL,
3908 uniq ($subdirs->value_as_list_recursive));
3909 }
3910 else
3911 {
3912 # We always define this because that is what `distclean'
3913 # wants.
3914 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3915 '$(SUBDIRS)');
3916 }
3917 }
3919 # The remaining definitions are only required when a dist target is used.
3920 return if option 'no-dist';
3922 # At least one of the archive formats must be enabled.
3923 if ($relative_dir eq '.')
3924 {
3925 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3926 $archive_defined ||=
3927 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3928 error (option 'no-dist-gzip',
3929 "no-dist-gzip specified but no dist-* specified, "
3930 . "at least one archive format must be enabled")
3931 unless $archive_defined;
3932 }
3934 # Look for common files that should be included in distribution.
3935 # If the aux dir is set, and it does not have a Makefile.am, then
3936 # we check for these files there as well.
3937 my $check_aux = 0;
3938 if ($relative_dir eq '.'
3939 && $config_aux_dir_set_in_configure_ac)
3940 {
3941 if (! &is_make_dir ($config_aux_dir))
3942 {
3943 $check_aux = 1;
3944 }
3945 }
3946 foreach my $cfile (@common_files)
3947 {
3948 if (dir_has_case_matching_file ($relative_dir, $cfile)
3949 # The file might be absent, but if it can be built it's ok.
3950 || rule $cfile)
3951 {
3952 &push_dist_common ($cfile);
3953 }
3955 # Don't use `elsif' here because a file might meaningfully
3956 # appear in both directories.
3957 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3958 {
3959 &push_dist_common ("$config_aux_dir/$cfile")
3960 }
3961 }
3963 # We might copy elements from $configure_dist_common to
3964 # %dist_common if we think we need to. If the file appears in our
3965 # directory, we would have discovered it already, so we don't
3966 # check that. But if the file is in a subdir without a Makefile,
3967 # we want to distribute it here if we are doing `.'. Ugly!
3968 if ($relative_dir eq '.')
3969 {
3970 foreach my $file (split (' ' , $configure_dist_common))
3971 {
3972 push_dist_common ($file)
3973 unless is_make_dir (dirname ($file));
3974 }
3975 }
3977 # Files to distributed. Don't use ->value_as_list_recursive
3978 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3979 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3980 @dist_common = uniq (sort for_dist_common (@dist_common));
3981 variable_delete 'DIST_COMMON';
3982 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3984 # Now that we've processed DIST_COMMON, disallow further attempts
3985 # to set it.
3986 $handle_dist_run = 1;
3988 # Scan EXTRA_DIST to see if we need to distribute anything from a
3989 # subdir. If so, add it to the list. I didn't want to do this
3990 # originally, but there were so many requests that I finally
3991 # relented.
3992 my $extra_dist = var ('EXTRA_DIST');
3994 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3995 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3997 # If the target `dist-hook' exists, make sure it is run. This
3998 # allows users to do random weird things to the distribution
3999 # before it is packaged up.
4000 push (@dist_targets, 'dist-hook')
4001 if user_phony_rule 'dist-hook';
4002 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
4004 my $flm = option ('filename-length-max');
4005 my $filename_filter = $flm ? '.' x $flm->[1] : '';
4007 $output_rules .= &file_contents ('distdir',
4008 new Automake::Location,
4009 %transform,
4010 FILENAME_FILTER => $filename_filter);
4011 }
4014 # check_directory ($NAME, $WHERE)
4015 # -------------------------------
4016 # Ensure $NAME is a directory, and that it uses a sane name.
4017 # Use $WHERE as a location in the diagnostic, if any.
4018 sub check_directory ($$)
4019 {
4020 my ($dir, $where) = @_;
4022 error $where, "required directory $relative_dir/$dir does not exist"
4023 unless -d "$relative_dir/$dir";
4025 # If an `obj/' directory exists, BSD make will enter it before
4026 # reading `Makefile'. Hence the `Makefile' in the current directory
4027 # will not be read.
4028 #
4029 # % cat Makefile
4030 # all:
4031 # echo Hello
4032 # % cat obj/Makefile
4033 # all:
4034 # echo World
4035 # % make # GNU make
4036 # echo Hello
4037 # Hello
4038 # % pmake # BSD make
4039 # echo World
4040 # World
4041 msg ('portability', $where,
4042 "naming a subdirectory `obj' causes troubles with BSD make")
4043 if $dir eq 'obj';
4045 # `aux' is probably the most important of the following forbidden name,
4046 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4047 msg ('portability', $where,
4048 "name `$dir' is reserved on W32 and DOS platforms")
4049 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4050 }
4052 # check_directories_in_var ($VARIABLE)
4053 # ------------------------------------
4054 # Recursively check all items in variables $VARIABLE as directories
4055 sub check_directories_in_var ($)
4056 {
4057 my ($var) = @_;
4058 $var->traverse_recursively
4059 (sub
4060 {
4061 my ($var, $val, $cond, $full_cond) = @_;
4062 check_directory ($val, $var->rdef ($cond)->location);
4063 return ();
4064 },
4065 undef,
4066 skip_ac_subst => 1);
4067 }
4069 # &handle_subdirs ()
4070 # ------------------
4071 # Handle subdirectories.
4072 sub handle_subdirs ()
4073 {
4074 my $subdirs = var ('SUBDIRS');
4075 return
4076 unless $subdirs;
4078 check_directories_in_var $subdirs;
4080 my $dsubdirs = var ('DIST_SUBDIRS');
4081 check_directories_in_var $dsubdirs
4082 if $dsubdirs;
4084 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4085 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4086 }
4089 # ($REGEN, @DEPENDENCIES)
4090 # &scan_aclocal_m4
4091 # ----------------
4092 # If aclocal.m4 creation is automated, return the list of its dependencies.
4093 sub scan_aclocal_m4 ()
4094 {
4095 my $regen_aclocal = 0;
4097 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4098 set_seen 'CONFIGURE_DEPENDENCIES';
4100 if (-f 'aclocal.m4')
4101 {
4102 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4104 my $aclocal = new Automake::XFile "< aclocal.m4";
4105 my $line = $aclocal->getline;
4106 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4107 }
4109 my @ac_deps = ();
4111 if (set_seen ('ACLOCAL_M4_SOURCES'))
4112 {
4113 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4114 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4115 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4116 . "It should be safe to simply remove it.");
4117 }
4119 # Note that it might be possible that aclocal.m4 doesn't exist but
4120 # should be auto-generated. This case probably isn't very
4121 # important.
4123 return ($regen_aclocal, @ac_deps);
4124 }
4127 # Helper function for substitute_ac_subst_variables.
4128 sub substitute_ac_subst_variables_worker($)
4129 {
4130 my ($token) = @_;
4131 return "\@$token\@" if var $token;
4132 return "\${$token\}";
4133 }
4135 # substitute_ac_subst_variables ($TEXT)
4136 # -------------------------------------
4137 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4138 # variable.
4139 sub substitute_ac_subst_variables ($)
4140 {
4141 my ($text) = @_;
4142 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4143 return $text;
4144 }
4146 # @DEPENDENCIES
4147 # &prepend_srcdir (@INPUTS)
4148 # -------------------------
4149 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4150 # if an input file has a directory part the same as the current
4151 # directory, then the directory part is simply replaced by $(srcdir).
4152 # But if the directory part is different, then $(top_srcdir) is
4153 # prepended.
4154 sub prepend_srcdir (@)
4155 {
4156 my (@inputs) = @_;
4157 my @newinputs;
4159 foreach my $single (@inputs)
4160 {
4161 if (dirname ($single) eq $relative_dir)
4162 {
4163 push (@newinputs, '$(srcdir)/' . basename ($single));
4164 }
4165 else
4166 {
4167 push (@newinputs, '$(top_srcdir)/' . $single);
4168 }
4169 }
4170 return @newinputs;
4171 }
4173 # @DEPENDENCIES
4174 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4175 # ---------------------------------------------------
4176 # Compute a list of dependencies appropriate for the rebuild
4177 # rule of
4178 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4179 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4180 sub rewrite_inputs_into_dependencies ($@)
4181 {
4182 my ($file, @inputs) = @_;
4183 my @res = ();
4185 for my $i (@inputs)
4186 {
4187 # We cannot create dependencies on shell variables.
4188 next if (substitute_ac_subst_variables $i) =~ /\$/;
4190 if (exists $ac_config_files_location{$i} && $i ne $file)
4191 {
4192 my $di = dirname $i;
4193 if ($di eq $relative_dir)
4194 {
4195 $i = basename $i;
4196 }
4197 # In the top-level Makefile we do not use $(top_builddir), because
4198 # we are already there, and since the targets are built without
4199 # a $(top_builddir), it helps BSD Make to match them with
4200 # dependencies.
4201 elsif ($relative_dir ne '.')
4202 {
4203 $i = '$(top_builddir)/' . $i;
4204 }
4205 }
4206 else
4207 {
4208 msg ('error', $ac_config_files_location{$file},
4209 "required file `$i' not found")
4210 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4211 ($i) = prepend_srcdir ($i);
4212 push_dist_common ($i);
4213 }
4214 push @res, $i;
4215 }
4216 return @res;
4217 }
4221 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4222 # ------------------------------------------------------------------
4223 # Handle remaking and configure stuff.
4224 # We need the name of the input file, to do proper remaking rules.
4225 sub handle_configure ($$$@)
4226 {
4227 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4229 prog_error 'empty @inputs'
4230 unless @inputs;
4232 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4233 $makefile_in);
4234 my $rel_makefile = basename $makefile;
4236 my $colon_infile = ':' . join (':', @inputs);
4237 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4238 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4239 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4240 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4241 @configure_deps, @aclocal_m4_deps,
4242 '$(top_srcdir)/' . $configure_ac);
4243 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4244 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4245 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4246 @configuredeps);
4248 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4249 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4251 $output_rules .= file_contents
4252 ('configure',
4253 new Automake::Location,
4254 MAKEFILE => $rel_makefile,
4255 'MAKEFILE-DEPS' => "@rewritten",
4256 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4257 'MAKEFILE-IN' => $rel_makefile_in,
4258 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4259 'MAKEFILE-IN-DEPS' => "@include_stack",
4260 'MAKEFILE-AM' => $rel_makefile_am,
4261 'AUTOMAKE-OPTIONS' => $automake_options,
4262 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4263 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4264 VERBOSE => verbose_flag ('GEN'));
4266 if ($relative_dir eq '.')
4267 {
4268 &push_dist_common ('acconfig.h')
4269 if -f 'acconfig.h';
4270 }
4272 # If we have a configure header, require it.
4273 my $hdr_index = 0;
4274 my @distclean_config;
4275 foreach my $spec (@config_headers)
4276 {
4277 $hdr_index += 1;
4278 # $CONFIG_H_PATH: config.h from top level.
4279 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4280 my $config_h_dir = dirname ($config_h_path);
4282 # If the header is in the current directory we want to build
4283 # the header here. Otherwise, if we're at the topmost
4284 # directory and the header's directory doesn't have a
4285 # Makefile, then we also want to build the header.
4286 if ($relative_dir eq $config_h_dir
4287 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4288 {
4289 my ($cn_sans_dir, $stamp_dir);
4290 if ($relative_dir eq $config_h_dir)
4291 {
4292 $cn_sans_dir = basename ($config_h_path);
4293 $stamp_dir = '';
4294 }
4295 else
4296 {
4297 $cn_sans_dir = $config_h_path;
4298 if ($config_h_dir eq '.')
4299 {
4300 $stamp_dir = '';
4301 }
4302 else
4303 {
4304 $stamp_dir = $config_h_dir . '/';
4305 }
4306 }
4308 # This will also distribute all inputs.
4309 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4311 # Cannot define rebuild rules for filenames with shell variables.
4312 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4314 # Header defined in this directory.
4315 my @files;
4316 if (-f $config_h_path . '.top')
4317 {
4318 push (@files, "$cn_sans_dir.top");
4319 }
4320 if (-f $config_h_path . '.bot')
4321 {
4322 push (@files, "$cn_sans_dir.bot");
4323 }
4325 push_dist_common (@files);
4327 # For now, acconfig.h can only appear in the top srcdir.
4328 if (-f 'acconfig.h')
4329 {
4330 push (@files, '$(top_srcdir)/acconfig.h');
4331 }
4333 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4334 $output_rules .=
4335 file_contents ('remake-hdr',
4336 new Automake::Location,
4337 FILES => "@files",
4338 CONFIG_H => $cn_sans_dir,
4339 CONFIG_HIN => $ins[0],
4340 CONFIG_H_DEPS => "@ins",
4341 CONFIG_H_PATH => $config_h_path,
4342 STAMP => "$stamp");
4344 push @distclean_config, $cn_sans_dir, $stamp;
4345 }
4346 }
4348 $output_rules .= file_contents ('clean-hdr',
4349 new Automake::Location,
4350 FILES => "@distclean_config")
4351 if @distclean_config;
4353 # Distribute and define mkinstalldirs only if it is already present
4354 # in the package, for backward compatibility (some people may still
4355 # use $(mkinstalldirs)).
4356 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4357 if (-f $mkidpath)
4358 {
4359 # Use require_file so that any existing script gets updated
4360 # by --force-missing.
4361 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4362 define_variable ('mkinstalldirs',
4363 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4364 }
4365 else
4366 {
4367 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4368 # at least one argument, and $(mkinstalldirs) used to work
4369 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4370 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4371 }
4373 reject_var ('CONFIG_HEADER',
4374 "`CONFIG_HEADER' is an anachronism; now determined "
4375 . "automatically\nfrom `$configure_ac'");
4377 my @config_h;
4378 foreach my $spec (@config_headers)
4379 {
4380 my ($out, @ins) = split_config_file_spec ($spec);
4381 # Generate CONFIG_HEADER define.
4382 if ($relative_dir eq dirname ($out))
4383 {
4384 push @config_h, basename ($out);
4385 }
4386 else
4387 {
4388 push @config_h, "\$(top_builddir)/$out";
4389 }
4390 }
4391 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4392 if @config_h;
4394 # Now look for other files in this directory which must be remade
4395 # by config.status, and generate rules for them.
4396 my @actual_other_files = ();
4397 # These get cleaned only in a VPATH build.
4398 my @actual_other_vpath_files = ();
4399 foreach my $lfile (@other_input_files)
4400 {
4401 my $file;
4402 my @inputs;
4403 if ($lfile =~ /^([^:]*):(.*)$/)
4404 {
4405 # This is the ":" syntax of AC_OUTPUT.
4406 $file = $1;
4407 @inputs = split (':', $2);
4408 }
4409 else
4410 {
4411 # Normal usage.
4412 $file = $lfile;
4413 @inputs = $file . '.in';
4414 }
4416 # Automake files should not be stored in here, but in %MAKE_LIST.
4417 prog_error ("$lfile in \@other_input_files\n"
4418 . "\@other_input_files = (@other_input_files)")
4419 if -f $file . '.am';
4421 my $local = basename ($file);
4423 # We skip files that aren't in this directory. However, if
4424 # the file's directory does not have a Makefile, and we are
4425 # currently doing `.', then we create a rule to rebuild the
4426 # file in the subdir.
4427 my $fd = dirname ($file);
4428 if ($fd ne $relative_dir)
4429 {
4430 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4431 {
4432 $local = $file;
4433 }
4434 else
4435 {
4436 next;
4437 }
4438 }
4440 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4442 # Cannot output rules for shell variables.
4443 next if (substitute_ac_subst_variables $local) =~ /\$/;
4445 my $condstr = '';
4446 my $cond = $ac_config_files_condition{$lfile};
4447 if (defined $cond)
4448 {
4449 $condstr = $cond->subst_string;
4450 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4451 $ac_config_files_location{$file});
4452 }
4453 $output_rules .= ($condstr . $local . ': '
4454 . '$(top_builddir)/config.status '
4455 . "@rewritten_inputs\n"
4456 . $condstr . "\t"
4457 . 'cd $(top_builddir) && '
4458 . '$(SHELL) ./config.status '
4459 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4460 . '$@'
4461 . "\n");
4462 push (@actual_other_files, $local);
4463 }
4465 # For links we should clean destinations and distribute sources.
4466 foreach my $spec (@config_links)
4467 {
4468 my ($link, $file) = split /:/, $spec;
4469 # Some people do AC_CONFIG_LINKS($computed). We only handle
4470 # the DEST:SRC form.
4471 next unless $file;
4472 my $where = $ac_config_files_location{$link};
4474 # Skip destinations that contain shell variables.
4475 if ((substitute_ac_subst_variables $link) !~ /\$/)
4476 {
4477 # We skip links that aren't in this directory. However, if
4478 # the link's directory does not have a Makefile, and we are
4479 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4480 # in `.'s Makefile.in.
4481 my $local = basename ($link);
4482 my $fd = dirname ($link);
4483 if ($fd ne $relative_dir)
4484 {
4485 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4486 {
4487 $local = $link;
4488 }
4489 else
4490 {
4491 $local = undef;
4492 }
4493 }
4494 if ($file ne $link)
4495 {
4496 push @actual_other_files, $local if $local;
4497 }
4498 else
4499 {
4500 push @actual_other_vpath_files, $local if $local;
4501 }
4502 }
4504 # Do not process sources that contain shell variables.
4505 if ((substitute_ac_subst_variables $file) !~ /\$/)
4506 {
4507 my $fd = dirname ($file);
4509 # We distribute files that are in this directory.
4510 # At the top-level (`.') we also distribute files whose
4511 # directory does not have a Makefile.
4512 if (($fd eq $relative_dir)
4513 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4514 {
4515 # The following will distribute $file as a side-effect when
4516 # it is appropriate (i.e., when $file is not already an output).
4517 # We do not need the result, just the side-effect.
4518 rewrite_inputs_into_dependencies ($link, $file);
4519 }
4520 }
4521 }
4523 # These files get removed by "make distclean".
4524 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4525 @actual_other_files);
4526 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4527 @actual_other_vpath_files);
4528 }
4530 # Handle C headers.
4531 sub handle_headers
4532 {
4533 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4534 'oldinclude', 'pkginclude',
4535 'noinst', 'check');
4536 foreach (@r)
4537 {
4538 next unless $_->[1] =~ /\..*$/;
4539 &saw_extension ($&);
4540 }
4541 }
4543 sub handle_gettext
4544 {
4545 return if ! $seen_gettext || $relative_dir ne '.';
4547 my $subdirs = var 'SUBDIRS';
4549 if (! $subdirs)
4550 {
4551 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4552 return;
4553 }
4555 # Perform some sanity checks to help users get the right setup.
4556 # We disable these tests when po/ doesn't exist in order not to disallow
4557 # unusual gettext setups.
4558 #
4559 # Bruno Haible:
4560 # | The idea is:
4561 # |
4562 # | 1) If a package doesn't have a directory po/ at top level, it
4563 # | will likely have multiple po/ directories in subpackages.
4564 # |
4565 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4566 # | is used without 'external'. It is also useful to warn for the
4567 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4568 # | warnings apply only to the usual layout of packages, therefore
4569 # | they should both be disabled if no po/ directory is found at
4570 # | top level.
4572 if (-d 'po')
4573 {
4574 my @subdirs = $subdirs->value_as_list_recursive;
4576 msg_var ('syntax', $subdirs,
4577 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4578 if ! grep ($_ eq 'po', @subdirs);
4580 # intl/ is not required when AM_GNU_GETTEXT is called with the
4581 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4582 msg_var ('syntax', $subdirs,
4583 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4584 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4585 && ! grep ($_ eq 'intl', @subdirs));
4587 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4588 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4589 msg_var ('syntax', $subdirs,
4590 "`intl' should not be in SUBDIRS when "
4591 . "AM_GNU_GETTEXT([external]) is used")
4592 if ($seen_gettext_external && ! $seen_gettext_intl
4593 && grep ($_ eq 'intl', @subdirs));
4594 }
4596 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4597 }
4599 # Handle footer elements.
4600 sub handle_footer
4601 {
4602 reject_rule ('.SUFFIXES',
4603 "use variable `SUFFIXES', not target `.SUFFIXES'");
4605 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4606 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4607 # anything else, by sticking it right after the default: target.
4608 $output_header .= ".SUFFIXES:\n";
4609 my $suffixes = var 'SUFFIXES';
4610 my @suffixes = Automake::Rule::suffixes;
4611 if (@suffixes || $suffixes)
4612 {
4613 # Make sure SUFFIXES has unique elements. Sort them to ensure
4614 # the output remains consistent. However, $(SUFFIXES) is
4615 # always at the start of the list, unsorted. This is done
4616 # because make will choose rules depending on the ordering of
4617 # suffixes, and this lets the user have some control. Push
4618 # actual suffixes, and not $(SUFFIXES). Some versions of make
4619 # do not like variable substitutions on the .SUFFIXES line.
4620 my @user_suffixes = ($suffixes
4621 ? $suffixes->value_as_list_recursive : ());
4623 my %suffixes = map { $_ => 1 } @suffixes;
4624 delete @suffixes{@user_suffixes};
4626 $output_header .= (".SUFFIXES: "
4627 . join (' ', @user_suffixes, sort keys %suffixes)
4628 . "\n");
4629 }
4631 $output_trailer .= file_contents ('footer', new Automake::Location);
4632 }
4635 # Generate `make install' rules.
4636 sub handle_install ()
4637 {
4638 $output_rules .= &file_contents
4639 ('install',
4640 new Automake::Location,
4641 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4642 ? (" \$(BUILT_SOURCES)\n"
4643 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4644 : ''),
4645 'installdirs-local' => (user_phony_rule 'installdirs-local'
4646 ? ' installdirs-local' : ''),
4647 am__installdirs => variable_value ('am__installdirs') || '');
4648 }
4651 # Deal with all and all-am.
4652 sub handle_all ($)
4653 {
4654 my ($makefile) = @_;
4656 # Output `all-am'.
4658 # Put this at the beginning for the sake of non-GNU makes. This
4659 # is still wrong if these makes can run parallel jobs. But it is
4660 # right enough.
4661 unshift (@all, basename ($makefile));
4663 foreach my $spec (@config_headers)
4664 {
4665 my ($out, @ins) = split_config_file_spec ($spec);
4666 push (@all, basename ($out))
4667 if dirname ($out) eq $relative_dir;
4668 }
4670 # Install `all' hooks.
4671 push (@all, "all-local")
4672 if user_phony_rule "all-local";
4674 &pretty_print_rule ("all-am:", "\t\t", @all);
4675 &depend ('.PHONY', 'all-am', 'all');
4678 # Output `all'.
4680 my @local_headers = ();
4681 push @local_headers, '$(BUILT_SOURCES)'
4682 if var ('BUILT_SOURCES');
4683 foreach my $spec (@config_headers)
4684 {
4685 my ($out, @ins) = split_config_file_spec ($spec);
4686 push @local_headers, basename ($out)
4687 if dirname ($out) eq $relative_dir;
4688 }
4690 if (@local_headers)
4691 {
4692 # We need to make sure config.h is built before we recurse.
4693 # We also want to make sure that built sources are built
4694 # before any ordinary `all' targets are run. We can't do this
4695 # by changing the order of dependencies to the "all" because
4696 # that breaks when using parallel makes. Instead we handle
4697 # things explicitly.
4698 $output_all .= ("all: @local_headers"
4699 . "\n\t"
4700 . '$(MAKE) $(AM_MAKEFLAGS) '
4701 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4702 . "\n\n");
4703 depend ('.MAKE', 'all');
4704 }
4705 else
4706 {
4707 $output_all .= "all: " . (var ('SUBDIRS')
4708 ? 'all-recursive' : 'all-am') . "\n\n";
4709 }
4710 }
4713 # &do_check_merge_target ()
4714 # -------------------------
4715 # Handle check merge target specially.
4716 sub do_check_merge_target ()
4717 {
4718 # Include user-defined local form of target.
4719 push @check_tests, 'check-local'
4720 if user_phony_rule 'check-local';
4722 # In --cygnus mode, check doesn't depend on all.
4723 if (option 'cygnus')
4724 {
4725 # Just run the local check rules.
4726 pretty_print_rule ('check-am:', "\t\t", @check);
4727 }
4728 else
4729 {
4730 # The check target must depend on the local equivalent of
4731 # `all', to ensure all the primary targets are built. Then it
4732 # must build the local check rules.
4733 $output_rules .= "check-am: all-am\n";
4734 if (@check)
4735 {
4736 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4737 @check);
4738 depend ('.MAKE', 'check-am');
4739 }
4740 }
4741 if (@check_tests)
4742 {
4743 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4744 @check_tests);
4745 depend ('.MAKE', 'check-am');
4746 }
4748 depend '.PHONY', 'check', 'check-am';
4749 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4750 $output_rules .= ("check: "
4751 . (var ('BUILT_SOURCES')
4752 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4753 : '')
4754 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4755 . "\n");
4756 depend ('.MAKE', 'check')
4757 if var ('BUILT_SOURCES');
4758 }
4760 # handle_clean ($MAKEFILE)
4761 # ------------------------
4762 # Handle all 'clean' targets.
4763 sub handle_clean ($)
4764 {
4765 my ($makefile) = @_;
4767 # Clean the files listed in user variables if they exist.
4768 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4769 if var ('MOSTLYCLEANFILES');
4770 $clean_files{'$(CLEANFILES)'} = CLEAN
4771 if var ('CLEANFILES');
4772 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4773 if var ('DISTCLEANFILES');
4774 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4775 if var ('MAINTAINERCLEANFILES');
4777 # Built sources are automatically removed by maintainer-clean.
4778 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4779 if var ('BUILT_SOURCES');
4781 # Compute a list of "rm"s to run for each target.
4782 my %rms = (MOSTLY_CLEAN, [],
4783 CLEAN, [],
4784 DIST_CLEAN, [],
4785 MAINTAINER_CLEAN, []);
4787 foreach my $file (keys %clean_files)
4788 {
4789 my $when = $clean_files{$file};
4790 prog_error 'invalid entry in %clean_files'
4791 unless exists $rms{$when};
4793 my $rm = "rm -f $file";
4794 # If file is a variable, make sure when don't call `rm -f' without args.
4795 $rm ="test -z \"$file\" || $rm"
4796 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4798 push @{$rms{$when}}, "\t-$rm\n";
4799 }
4801 $output_rules .= &file_contents
4802 ('clean',
4803 new Automake::Location,
4804 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4805 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4806 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4807 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4808 MAKEFILE => basename $makefile,
4809 );
4810 }
4813 # &target_cmp ($A, $B)
4814 # --------------------
4815 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4816 # other `.TARGETS' be last.
4817 sub target_cmp
4818 {
4819 return 0 if $a eq $b;
4821 my $a1 = substr ($a, 0, 1);
4822 my $b1 = substr ($b, 0, 1);
4823 if ($a1 ne $b1)
4824 {
4825 return -1 if $b1 eq '.';
4826 return 1 if $a1 eq '.';
4827 }
4828 return $a cmp $b;
4829 }
4832 # &handle_factored_dependencies ()
4833 # --------------------------------
4834 # Handle everything related to gathered targets.
4835 sub handle_factored_dependencies
4836 {
4837 # Reject bad hooks.
4838 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4839 'uninstall-exec-local', 'uninstall-exec-hook',
4840 'uninstall-dvi-local',
4841 'uninstall-html-local',
4842 'uninstall-info-local',
4843 'uninstall-pdf-local',
4844 'uninstall-ps-local')
4845 {
4846 my $x = $utarg;
4847 $x =~ s/-.*-/-/;
4848 reject_rule ($utarg, "use `$x', not `$utarg'");
4849 }
4851 reject_rule ('install-local',
4852 "use `install-data-local' or `install-exec-local', "
4853 . "not `install-local'");
4855 reject_rule ('install-hook',
4856 "use `install-data-hook' or `install-exec-hook', "
4857 . "not `install-hook'");
4859 # Install the -local hooks.
4860 foreach (keys %dependencies)
4861 {
4862 # Hooks are installed on the -am targets.
4863 s/-am$// or next;
4864 depend ("$_-am", "$_-local")
4865 if user_phony_rule "$_-local";
4866 }
4868 # Install the -hook hooks.
4869 # FIXME: Why not be as liberal as we are with -local hooks?
4870 foreach ('install-exec', 'install-data', 'uninstall')
4871 {
4872 if (user_phony_rule "$_-hook")
4873 {
4874 depend ('.MAKE', "$_-am");
4875 register_action("$_-am",
4876 ("\t\@\$(NORMAL_INSTALL)\n"
4877 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4878 }
4879 }
4881 # All the required targets are phony.
4882 depend ('.PHONY', keys %required_targets);
4884 # Actually output gathered targets.
4885 foreach (sort target_cmp keys %dependencies)
4886 {
4887 # If there is nothing about this guy, skip it.
4888 next
4889 unless (@{$dependencies{$_}}
4890 || $actions{$_}
4891 || $required_targets{$_});
4893 # Define gathered targets in undefined conditions.
4894 # FIXME: Right now we must handle .PHONY as an exception,
4895 # because people write things like
4896 # .PHONY: myphonytarget
4897 # to append dependencies. This would not work if Automake
4898 # refrained from defining its own .PHONY target as it does
4899 # with other overridden targets.
4900 # Likewise for `.MAKE'.
4901 my @undefined_conds = (TRUE,);
4902 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4903 {
4904 @undefined_conds =
4905 Automake::Rule::define ($_, 'internal',
4906 RULE_AUTOMAKE, TRUE, INTERNAL);
4907 }
4908 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4909 foreach my $cond (@undefined_conds)
4910 {
4911 my $condstr = $cond->subst_string;
4912 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4913 $output_rules .= $actions{$_} if defined $actions{$_};
4914 $output_rules .= "\n";
4915 }
4916 }
4917 }
4920 # &handle_tests_dejagnu ()
4921 # ------------------------
4922 sub handle_tests_dejagnu
4923 {
4924 push (@check_tests, 'check-DEJAGNU');
4925 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4926 }
4928 # is_valid_test_extension ($EXT)
4929 # ------------------------------
4930 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4931 # otherwise.
4932 sub is_valid_test_extension ($)
4933 {
4934 my $ext = shift;
4935 return 1
4936 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4937 return 1
4938 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4939 return 0;
4940 }
4942 # Handle TESTS variable and other checks.
4943 sub handle_tests
4944 {
4945 if (option 'dejagnu')
4946 {
4947 &handle_tests_dejagnu;
4948 }
4949 else
4950 {
4951 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4952 {
4953 reject_var ($c, "`$c' defined but `dejagnu' not in "
4954 . "`AUTOMAKE_OPTIONS'");
4955 }
4956 }
4958 if (var ('TESTS'))
4959 {
4960 push (@check_tests, 'check-TESTS');
4961 my $check_deps = "@check";
4962 $output_rules .= &file_contents ('check', new Automake::Location,
4963 COLOR => !! option 'color-tests',
4964 PARALLEL_TESTS => !! option 'parallel-tests',
4965 CHECK_DEPS => $check_deps);
4967 # Tests that are known programs should have $(EXEEXT) appended.
4968 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4969 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4970 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4971 if (var ('XFAIL_TESTS'));
4973 if (option 'parallel-tests')
4974 {
4975 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4976 my $suff = '.test';
4977 my $at_exeext = '';
4978 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4979 if ($handle_exeext)
4980 {
4981 $at_exeext = subst ('EXEEXT');
4982 $suff = $at_exeext . ' ' . $suff;
4983 }
4984 if (! var 'TEST_EXTENSIONS')
4985 {
4986 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4987 }
4988 my $var = var 'TEST_EXTENSIONS';
4989 # Currently, we are not able to deal with conditional contents
4990 # in TEST_EXTENSIONS.
4991 if ($var->has_conditional_contents)
4992 {
4993 msg_var 'unsupported', $var,
4994 "`TEST_EXTENSIONS' cannot have conditional contents";
4995 }
4996 my @test_suffixes = $var->value_as_list_recursive;
4997 if ((my @invalid_test_suffixes =
4998 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4999 {
5000 error $var->rdef (TRUE)->location,
5001 "invalid test extensions: @invalid_test_suffixes";
5002 }
5003 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
5004 if ($handle_exeext)
5005 {
5006 unshift (@test_suffixes, $at_exeext)
5007 unless $test_suffixes[0] eq $at_exeext;
5008 }
5009 unshift (@test_suffixes, '');
5011 transform_variable_recursively
5012 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
5013 sub {
5014 my ($subvar, $val, $cond, $full_cond) = @_;
5015 my $obj = $val;
5016 return $obj
5017 if $val =~ /^\@.*\@$/;
5018 $obj =~ s/\$\(EXEEXT\)$//o;
5020 if ($val =~ /(\$\((top_)?srcdir\))\//o)
5021 {
5022 msg ('error', $subvar->rdef ($cond)->location,
5023 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
5024 }
5026 foreach my $test_suffix (@test_suffixes)
5027 {
5028 next
5029 if $test_suffix eq $at_exeext || $test_suffix eq '';
5030 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
5031 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
5032 }
5033 $obj .= '.log';
5034 my $compile = 'LOG_COMPILE';
5035 define_variable ($compile,
5036 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
5037 $output_rules .= file_contents ('check2', new Automake::Location,
5038 GENERIC => 0,
5039 OBJ => $obj,
5040 SOURCE => $val,
5041 COMPILE =>'$(' . $compile . ')',
5042 EXT => '',
5043 am__EXEEXT => 'FALSE');
5044 return $obj;
5045 });
5047 my $nhelper=1;
5048 my $prev = 'TESTS';
5049 my $post = '';
5050 my $last_suffix = $test_suffixes[$#test_suffixes];
5051 my $cur = '';
5052 foreach my $test_suffix (@test_suffixes)
5053 {
5054 if ($test_suffix eq $last_suffix)
5055 {
5056 $cur = 'TEST_LOGS';
5057 }
5058 else
5059 {
5060 $cur = 'am__test_logs' . $nhelper;
5061 }
5062 define_variable ($cur,
5063 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5064 $post = '.log';
5065 $prev = $cur;
5066 $nhelper++;
5067 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5068 {
5069 (my $ext = $test_suffix) =~ s/^\.//;
5070 $ext = uc $ext;
5071 my $compile = $ext . '_LOG_COMPILE';
5072 define_variable ($compile,
5073 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5074 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5075 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5076 $output_rules .= file_contents ('check2', new Automake::Location,
5077 GENERIC => 1,
5078 OBJ => '',
5079 SOURCE => '$<',
5080 COMPILE => '$(' . $compile . ')',
5081 EXT => $test_suffix,
5082 am__EXEEXT => $am_exeext);
5083 }
5084 }
5086 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5088 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5089 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5090 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5091 }
5092 }
5093 }
5095 # Handle Emacs Lisp.
5096 sub handle_emacs_lisp
5097 {
5098 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5099 'lisp', 'noinst');
5101 return if ! @elfiles;
5103 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5104 map { $_->[1] } @elfiles);
5105 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5106 '$(am__ELFILES:.el=.elc)');
5107 # This one can be overridden by users.
5108 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5110 push @all, '$(ELCFILES)';
5112 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5113 'EMACS', 'lispdir');
5114 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5115 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5116 }
5118 # Handle Python
5119 sub handle_python
5120 {
5121 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5122 'noinst');
5123 return if ! @pyfiles;
5125 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5126 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5127 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5128 }
5130 # Handle Java.
5131 sub handle_java
5132 {
5133 my @sourcelist = &am_install_var ('-candist',
5134 'java', 'JAVA',
5135 'noinst', 'check');
5136 return if ! @sourcelist;
5138 my @prefixes = am_primary_prefixes ('JAVA', 1,
5139 'noinst', 'check');
5141 my $dir;
5142 my @java_sources = ();
5143 foreach my $prefix (@prefixes)
5144 {
5145 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5147 next
5148 if $curs eq 'EXTRA';
5150 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5152 if (defined $dir)
5153 {
5154 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5155 unless $curs eq $dir;
5156 }
5158 $dir = $curs;
5159 }
5161 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5162 "@java_sources");
5164 if ($dir eq 'check')
5165 {
5166 push (@check, "class$dir.stamp");
5167 }
5168 else
5169 {
5170 push (@all, "class$dir.stamp");
5171 }
5172 }
5175 # Handle some of the minor options.
5176 sub handle_minor_options
5177 {
5178 if (option 'readme-alpha')
5179 {
5180 if ($relative_dir eq '.')
5181 {
5182 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5183 {
5184 msg ('error-gnits', $package_version_location,
5185 "version `$package_version' doesn't follow " .
5186 "Gnits standards");
5187 }
5188 if (defined $1 && -f 'README-alpha')
5189 {
5190 # This means we have an alpha release. See
5191 # GNITS_VERSION_PATTERN for details.
5192 push_dist_common ('README-alpha');
5193 }
5194 }
5195 }
5196 }
5198 ################################################################
5200 # ($OUTPUT, @INPUTS)
5201 # &split_config_file_spec ($SPEC)
5202 # -------------------------------
5203 # Decode the Autoconf syntax for config files (files, headers, links
5204 # etc.).
5205 sub split_config_file_spec ($)
5206 {
5207 my ($spec) = @_;
5208 my ($output, @inputs) = split (/:/, $spec);
5210 push @inputs, "$output.in"
5211 unless @inputs;
5213 return ($output, @inputs);
5214 }
5216 # $input
5217 # locate_am (@POSSIBLE_SOURCES)
5218 # -----------------------------
5219 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5220 # This functions returns the first *.in file for which a *.am exists.
5221 # It returns undef otherwise.
5222 sub locate_am (@)
5223 {
5224 my (@rest) = @_;
5225 my $input;
5226 foreach my $file (@rest)
5227 {
5228 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5229 {
5230 $input = $file;
5231 last;
5232 }
5233 }
5234 return $input;
5235 }
5237 my %make_list;
5239 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5240 # ---------------------------------------------------
5241 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5242 # (or AC_OUTPUT).
5243 sub scan_autoconf_config_files ($$)
5244 {
5245 my ($where, $config_files) = @_;
5247 # Look at potential Makefile.am's.
5248 foreach (split ' ', $config_files)
5249 {
5250 # Must skip empty string for Perl 4.
5251 next if $_ eq "\\" || $_ eq '';
5253 # Handle $local:$input syntax.
5254 my ($local, @rest) = split (/:/);
5255 @rest = ("$local.in",) unless @rest;
5256 # Keep in sync with 'conffile-leading-dot.test'.
5257 msg ('unsupported', $where,
5258 "omit leading './' from config file names such as '$local';"
5259 . "\nremake rules might be subtly broken otherwise")
5260 if ($local =~ /^\.\//);
5261 my $input = locate_am @rest;
5262 if ($input)
5263 {
5264 # We have a file that automake should generate.
5265 $make_list{$input} = join (':', ($local, @rest));
5266 }
5267 else
5268 {
5269 # We have a file that automake should cause to be
5270 # rebuilt, but shouldn't generate itself.
5271 push (@other_input_files, $_);
5272 }
5273 $ac_config_files_location{$local} = $where;
5274 $ac_config_files_condition{$local} =
5275 new Automake::Condition (@cond_stack)
5276 if (@cond_stack);
5277 }
5278 }
5281 # &scan_autoconf_traces ($FILENAME)
5282 # ---------------------------------
5283 sub scan_autoconf_traces ($)
5284 {
5285 my ($filename) = @_;
5287 # Macros to trace, with their minimal number of arguments.
5288 #
5289 # IMPORTANT: If you add a macro here, you should also add this macro
5290 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5291 my %traced = (
5292 AC_CANONICAL_BUILD => 0,
5293 AC_CANONICAL_HOST => 0,
5294 AC_CANONICAL_TARGET => 0,
5295 AC_CONFIG_AUX_DIR => 1,
5296 AC_CONFIG_FILES => 1,
5297 AC_CONFIG_HEADERS => 1,
5298 AC_CONFIG_LIBOBJ_DIR => 1,
5299 AC_CONFIG_LINKS => 1,
5300 AC_FC_SRCEXT => 1,
5301 AC_INIT => 0,
5302 AC_LIBSOURCE => 1,
5303 AC_REQUIRE_AUX_FILE => 1,
5304 AC_SUBST_TRACE => 1,
5305 AM_AUTOMAKE_VERSION => 1,
5306 AM_CONDITIONAL => 2,
5307 AM_ENABLE_MULTILIB => 0,
5308 AM_GNU_GETTEXT => 0,
5309 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5310 AM_INIT_AUTOMAKE => 0,
5311 AM_MAINTAINER_MODE => 0,
5312 AM_PROG_CC_C_O => 0,
5313 AM_SILENT_RULES => 0,
5314 _AM_SUBST_NOTMAKE => 1,
5315 _AM_COND_IF => 1,
5316 _AM_COND_ELSE => 1,
5317 _AM_COND_ENDIF => 1,
5318 LT_SUPPORTED_TAG => 1,
5319 _LT_AC_TAGCONFIG => 0,
5320 m4_include => 1,
5321 m4_sinclude => 1,
5322 sinclude => 1,
5323 );
5325 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5327 # Use a separator unlikely to be used, not `:', the default, which
5328 # has a precise meaning for AC_CONFIG_FILES and so on.
5329 $traces .= join (' ',
5330 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5331 (keys %traced));
5333 my $tracefh = new Automake::XFile ("$traces $filename |");
5334 verb "reading $traces";
5336 @cond_stack = ();
5337 my $where;
5339 while ($_ = $tracefh->getline)
5340 {
5341 chomp;
5342 my ($here, $depth, @args) = split (/::/);
5343 $where = new Automake::Location $here;
5344 my $macro = $args[0];
5346 prog_error ("unrequested trace `$macro'")
5347 unless exists $traced{$macro};
5349 # Skip and diagnose malformed calls.
5350 if ($#args < $traced{$macro})
5351 {
5352 msg ('syntax', $where, "not enough arguments for $macro");
5353 next;
5354 }
5356 # Alphabetical ordering please.
5357 if ($macro eq 'AC_CANONICAL_BUILD')
5358 {
5359 if ($seen_canonical <= AC_CANONICAL_BUILD)
5360 {
5361 $seen_canonical = AC_CANONICAL_BUILD;
5362 $canonical_location = $where;
5363 }
5364 }
5365 elsif ($macro eq 'AC_CANONICAL_HOST')
5366 {
5367 if ($seen_canonical <= AC_CANONICAL_HOST)
5368 {
5369 $seen_canonical = AC_CANONICAL_HOST;
5370 $canonical_location = $where;
5371 }
5372 }
5373 elsif ($macro eq 'AC_CANONICAL_TARGET')
5374 {
5375 $seen_canonical = AC_CANONICAL_TARGET;
5376 $canonical_location = $where;
5377 }
5378 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5379 {
5380 if ($seen_init_automake)
5381 {
5382 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5383 . "AM_INIT_AUTOMAKE...", partial => 1);
5384 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5385 }
5386 $config_aux_dir = $args[1];
5387 $config_aux_dir_set_in_configure_ac = 1;
5388 $relative_dir = '.';
5389 check_directory ($config_aux_dir, $where);
5390 }
5391 elsif ($macro eq 'AC_CONFIG_FILES')
5392 {
5393 # Look at potential Makefile.am's.
5394 scan_autoconf_config_files ($where, $args[1]);
5395 }
5396 elsif ($macro eq 'AC_CONFIG_HEADERS')
5397 {
5398 foreach my $spec (split (' ', $args[1]))
5399 {
5400 my ($dest, @src) = split (':', $spec);
5401 $ac_config_files_location{$dest} = $where;
5402 push @config_headers, $spec;
5403 }
5404 }
5405 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5406 {
5407 $config_libobj_dir = $args[1];
5408 $relative_dir = '.';
5409 check_directory ($config_libobj_dir, $where);
5410 }
5411 elsif ($macro eq 'AC_CONFIG_LINKS')
5412 {
5413 foreach my $spec (split (' ', $args[1]))
5414 {
5415 my ($dest, $src) = split (':', $spec);
5416 $ac_config_files_location{$dest} = $where;
5417 push @config_links, $spec;
5418 }
5419 }
5420 elsif ($macro eq 'AC_FC_SRCEXT')
5421 {
5422 my $suffix = $args[1];
5423 # These flags are used as %SOURCEFLAG% in depend2.am,
5424 # where the trailing space is important.
5425 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5426 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5427 }
5428 elsif ($macro eq 'AC_INIT')
5429 {
5430 if (defined $args[2])
5431 {
5432 $package_version = $args[2];
5433 $package_version_location = $where;
5434 }
5435 }
5436 elsif ($macro eq 'AC_LIBSOURCE')
5437 {
5438 $libsources{$args[1]} = $here;
5439 }
5440 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5441 {
5442 # Only remember the first time a file is required.
5443 $required_aux_file{$args[1]} = $where
5444 unless exists $required_aux_file{$args[1]};
5445 }
5446 elsif ($macro eq 'AC_SUBST_TRACE')
5447 {
5448 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5449 # AC_SUBST(5), then too bad.
5450 $configure_vars{$args[1]} = $where
5451 if $args[1] =~ /^\w+$/;
5452 }
5453 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5454 {
5455 error ($where,
5456 "version mismatch. This is Automake $VERSION,\n" .
5457 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5458 "comes from Automake $args[1]. You should recreate\n" .
5459 "aclocal.m4 with aclocal and run automake again.\n",
5460 # $? = 63 is used to indicate version mismatch to missing.
5461 exit_code => 63)
5462 if $VERSION ne $args[1];
5464 $seen_automake_version = 1;
5465 }
5466 elsif ($macro eq 'AM_CONDITIONAL')
5467 {
5468 $configure_cond{$args[1]} = $where;
5469 }
5470 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5471 {
5472 $seen_multilib = $where;
5473 }
5474 elsif ($macro eq 'AM_GNU_GETTEXT')
5475 {
5476 $seen_gettext = $where;
5477 $ac_gettext_location = $where;
5478 $seen_gettext_external = grep ($_ eq 'external', @args);
5479 }
5480 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5481 {
5482 $seen_gettext_intl = $where;
5483 }
5484 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5485 {
5486 $seen_init_automake = $where;
5487 if (defined $args[2])
5488 {
5489 $package_version = $args[2];
5490 $package_version_location = $where;
5491 }
5492 elsif (defined $args[1])
5493 {
5494 exit $exit_code
5495 if (process_global_option_list ($where,
5496 split (' ', $args[1])));
5497 }
5498 }
5499 elsif ($macro eq 'AM_MAINTAINER_MODE')
5500 {
5501 $seen_maint_mode = $where;
5502 }
5503 elsif ($macro eq 'AM_PROG_CC_C_O')
5504 {
5505 $seen_cc_c_o = $where;
5506 }
5507 elsif ($macro eq 'AM_SILENT_RULES')
5508 {
5509 set_global_option ('silent-rules', $where);
5510 }
5511 elsif ($macro eq '_AM_COND_IF')
5512 {
5513 cond_stack_if ('', $args[1], $where);
5514 error ($where, "missing m4 quoting, macro depth $depth")
5515 if ($depth != 1);
5516 }
5517 elsif ($macro eq '_AM_COND_ELSE')
5518 {
5519 cond_stack_else ('!', $args[1], $where);
5520 error ($where, "missing m4 quoting, macro depth $depth")
5521 if ($depth != 1);
5522 }
5523 elsif ($macro eq '_AM_COND_ENDIF')
5524 {
5525 cond_stack_endif (undef, undef, $where);
5526 error ($where, "missing m4 quoting, macro depth $depth")
5527 if ($depth != 1);
5528 }
5529 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5530 {
5531 $ignored_configure_vars{$args[1]} = $where;
5532 }
5533 elsif ($macro eq 'm4_include'
5534 || $macro eq 'm4_sinclude'
5535 || $macro eq 'sinclude')
5536 {
5537 # Skip missing `sinclude'd files.
5538 next if $macro ne 'm4_include' && ! -f $args[1];
5540 # Some modified versions of Autoconf don't use
5541 # frozen files. Consequently it's possible that we see all
5542 # m4_include's performed during Autoconf's startup.
5543 # Obviously we don't want to distribute Autoconf's files
5544 # so we skip absolute filenames here.
5545 push @configure_deps, '$(top_srcdir)/' . $args[1]
5546 unless $here =~ m,^(?:\w:)?[\\/],;
5547 # Keep track of the greatest timestamp.
5548 if (-e $args[1])
5549 {
5550 my $mtime = mtime $args[1];
5551 $configure_deps_greatest_timestamp = $mtime
5552 if $mtime > $configure_deps_greatest_timestamp;
5553 }
5554 }
5555 elsif ($macro eq 'LT_SUPPORTED_TAG')
5556 {
5557 $libtool_tags{$args[1]} = 1;
5558 $libtool_new_api = 1;
5559 }
5560 elsif ($macro eq '_LT_AC_TAGCONFIG')
5561 {
5562 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5563 # We use it to detect whether tags are supported. Our
5564 # preferred interface is LT_SUPPORTED_TAG, but it was
5565 # introduced in Libtool 1.6.
5566 if (0 == keys %libtool_tags)
5567 {
5568 # Hardcode the tags supported by Libtool 1.5.
5569 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5570 }
5571 }
5572 }
5574 error ($where, "condition stack not properly closed")
5575 if (@cond_stack);
5577 $tracefh->close;
5578 }
5581 # &scan_autoconf_files ()
5582 # -----------------------
5583 # Check whether we use `configure.ac' or `configure.in'.
5584 # Scan it (and possibly `aclocal.m4') for interesting things.
5585 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5586 sub scan_autoconf_files ()
5587 {
5588 # Reinitialize libsources here. This isn't really necessary,
5589 # since we currently assume there is only one configure.ac. But
5590 # that won't always be the case.
5591 %libsources = ();
5593 # Keep track of the youngest configure dependency.
5594 $configure_deps_greatest_timestamp = mtime $configure_ac;
5595 if (-e 'aclocal.m4')
5596 {
5597 my $mtime = mtime 'aclocal.m4';
5598 $configure_deps_greatest_timestamp = $mtime
5599 if $mtime > $configure_deps_greatest_timestamp;
5600 }
5602 scan_autoconf_traces ($configure_ac);
5604 @configure_input_files = sort keys %make_list;
5605 # Set input and output files if not specified by user.
5606 if (! @input_files)
5607 {
5608 @input_files = @configure_input_files;
5609 %output_files = %make_list;
5610 }
5613 if (! $seen_init_automake)
5614 {
5615 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5616 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5617 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5618 . "and that aclocal.m4 was recently regenerated "
5619 . "(using aclocal).");
5620 }
5621 else
5622 {
5623 if (! $seen_automake_version)
5624 {
5625 if (-f 'aclocal.m4')
5626 {
5627 error ($seen_init_automake,
5628 "your implementation of AM_INIT_AUTOMAKE comes from " .
5629 "an\nold Automake version. You should recreate " .
5630 "aclocal.m4\nwith aclocal and run automake again.\n",
5631 # $? = 63 is used to indicate version mismatch to missing.
5632 exit_code => 63);
5633 }
5634 else
5635 {
5636 error ($seen_init_automake,
5637 "no proper implementation of AM_INIT_AUTOMAKE was " .
5638 "found,\nprobably because aclocal.m4 is missing...\n" .
5639 "You should run aclocal to create this file, then\n" .
5640 "run automake again.\n");
5641 }
5642 }
5643 }
5645 locate_aux_dir ();
5647 # Reorder @input_files so that the Makefile that distributes aux
5648 # files is processed last. This is important because each directory
5649 # can require auxiliary scripts and we should wait until they have
5650 # been installed before distributing them.
5652 # The Makefile.in that distribute the aux files is the one in
5653 # $config_aux_dir or the top-level Makefile.
5654 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5655 my @new_input_files = ();
5656 while (@input_files)
5657 {
5658 my $in = pop @input_files;
5659 my @ins = split (/:/, $output_files{$in});
5660 if (dirname ($ins[0]) eq $auxdirdist)
5661 {
5662 push @new_input_files, $in;
5663 $automake_will_process_aux_dir = 1;
5664 }
5665 else
5666 {
5667 unshift @new_input_files, $in;
5668 }
5669 }
5670 @input_files = @new_input_files;
5672 # If neither the auxdir/Makefile nor the ./Makefile are generated
5673 # by Automake, we won't distribute the aux files anyway. Assume
5674 # the user know what (s)he does, and pretend we will distribute
5675 # them to disable the error in require_file_internal.
5676 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5678 # Look for some files we need. Always check for these. This
5679 # check must be done for every run, even those where we are only
5680 # looking at a subdir Makefile. We must set relative_dir for
5681 # maybe_push_required_file to work.
5682 # Sort the files for stable verbose output.
5683 $relative_dir = '.';
5684 foreach my $file (sort keys %required_aux_file)
5685 {
5686 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5687 }
5688 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5689 if -f $config_aux_dir . '/install.sh';
5691 # Preserve dist_common for later.
5692 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5694 }
5696 ################################################################
5698 # Set up for Cygnus mode.
5699 sub check_cygnus
5700 {
5701 my $cygnus = option 'cygnus';
5702 return unless $cygnus;
5704 set_strictness ('foreign');
5705 set_option ('no-installinfo', $cygnus);
5706 set_option ('no-dependencies', $cygnus);
5707 set_option ('no-dist', $cygnus);
5709 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5710 if !$seen_maint_mode;
5711 }
5713 # Do any extra checking for GNU standards.
5714 sub check_gnu_standards
5715 {
5716 if ($relative_dir eq '.')
5717 {
5718 # In top level (or only) directory.
5719 require_file ("$am_file.am", GNU,
5720 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5722 # Accept one of these three licenses; default to COPYING.
5723 # Make sure we do not overwrite an existing license.
5724 my $license;
5725 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5726 {
5727 if (-f $_)
5728 {
5729 $license = $_;
5730 last;
5731 }
5732 }
5733 require_file ("$am_file.am", GNU, 'COPYING')
5734 unless $license;
5735 }
5737 for my $opt ('no-installman', 'no-installinfo')
5738 {
5739 msg ('error-gnu', option $opt,
5740 "option `$opt' disallowed by GNU standards")
5741 if option $opt;
5742 }
5743 }
5745 # Do any extra checking for GNITS standards.
5746 sub check_gnits_standards
5747 {
5748 if ($relative_dir eq '.')
5749 {
5750 # In top level (or only) directory.
5751 require_file ("$am_file.am", GNITS, 'THANKS');
5752 }
5753 }
5755 ################################################################
5756 #
5757 # Functions to handle files of each language.
5759 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5760 # simple formula: Return value is LANG_SUBDIR if the resulting object
5761 # file should be in a subdir if the source file is, LANG_PROCESS if
5762 # file is to be dealt with, LANG_IGNORE otherwise.
5764 # Much of the actual processing is handled in
5765 # handle_single_transform. These functions exist so that
5766 # auxiliary information can be recorded for a later cleanup pass.
5767 # Note that the calls to these functions are computed, so don't bother
5768 # searching for their precise names in the source.
5770 # This is just a convenience function that can be used to determine
5771 # when a subdir object should be used.
5772 sub lang_sub_obj
5773 {
5774 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5775 }
5777 # Rewrite a single C source file.
5778 sub lang_c_rewrite
5779 {
5780 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5782 if (option 'ansi2knr' && $base =~ /_$/)
5783 {
5784 # FIXME: include line number in error.
5785 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5786 }
5788 my $r = LANG_PROCESS;
5789 if (option 'subdir-objects')
5790 {
5791 $r = LANG_SUBDIR;
5792 if ($directory && $directory ne '.')
5793 {
5794 $base = $directory . '/' . $base;
5796 # libtool is always able to put the object at the proper place,
5797 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5798 msg_var ('portability', $var,
5799 "compiling `$base.c' in subdir requires "
5800 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5801 uniq_scope => US_GLOBAL,
5802 uniq_part => 'AM_PROG_CC_C_O subdir')
5803 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5804 }
5806 # In this case we already have the directory information, so
5807 # don't add it again.
5808 $de_ansi_files{$base} = '';
5809 }
5810 else
5811 {
5812 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5813 ? ''
5814 : "$directory/");
5815 }
5817 if (! $seen_cc_c_o
5818 && $have_per_exec_flags
5819 && ! option 'subdir-objects'
5820 && $nonansi_obj ne '.lo')
5821 {
5822 msg_var ('portability',
5823 $var, "compiling `$base.c' with per-target flags requires "
5824 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5825 uniq_scope => US_GLOBAL,
5826 uniq_part => 'AM_PROG_CC_C_O per-target')
5827 }
5829 return $r;
5830 }
5832 # Rewrite a single C++ source file.
5833 sub lang_cxx_rewrite
5834 {
5835 return &lang_sub_obj;
5836 }
5838 # Rewrite a single header file.
5839 sub lang_header_rewrite
5840 {
5841 # Header files are simply ignored.
5842 return LANG_IGNORE;
5843 }
5845 # Rewrite a single Vala source file.
5846 sub lang_vala_rewrite
5847 {
5848 my ($directory, $base, $ext) = @_;
5850 (my $newext = $ext) =~ s/vala$/c/;
5851 return (LANG_SUBDIR, $newext);
5852 }
5854 # Rewrite a single yacc file.
5855 sub lang_yacc_rewrite
5856 {
5857 my ($directory, $base, $ext) = @_;
5859 my $r = &lang_sub_obj;
5860 (my $newext = $ext) =~ tr/y/c/;
5861 return ($r, $newext);
5862 }
5864 # Rewrite a single yacc++ file.
5865 sub lang_yaccxx_rewrite
5866 {
5867 my ($directory, $base, $ext) = @_;
5869 my $r = &lang_sub_obj;
5870 (my $newext = $ext) =~ tr/y/c/;
5871 return ($r, $newext);
5872 }
5874 # Rewrite a single lex file.
5875 sub lang_lex_rewrite
5876 {
5877 my ($directory, $base, $ext) = @_;
5879 my $r = &lang_sub_obj;
5880 (my $newext = $ext) =~ tr/l/c/;
5881 return ($r, $newext);
5882 }
5884 # Rewrite a single lex++ file.
5885 sub lang_lexxx_rewrite
5886 {
5887 my ($directory, $base, $ext) = @_;
5889 my $r = &lang_sub_obj;
5890 (my $newext = $ext) =~ tr/l/c/;
5891 return ($r, $newext);
5892 }
5894 # Rewrite a single assembly file.
5895 sub lang_asm_rewrite
5896 {
5897 return &lang_sub_obj;
5898 }
5900 # Rewrite a single preprocessed assembly file.
5901 sub lang_cppasm_rewrite
5902 {
5903 return &lang_sub_obj;
5904 }
5906 # Rewrite a single Fortran 77 file.
5907 sub lang_f77_rewrite
5908 {
5909 return &lang_sub_obj;
5910 }
5912 # Rewrite a single Fortran file.
5913 sub lang_fc_rewrite
5914 {
5915 return &lang_sub_obj;
5916 }
5918 # Rewrite a single preprocessed Fortran file.
5919 sub lang_ppfc_rewrite
5920 {
5921 return &lang_sub_obj;
5922 }
5924 # Rewrite a single preprocessed Fortran 77 file.
5925 sub lang_ppf77_rewrite
5926 {
5927 return &lang_sub_obj;
5928 }
5930 # Rewrite a single ratfor file.
5931 sub lang_ratfor_rewrite
5932 {
5933 return &lang_sub_obj;
5934 }
5936 # Rewrite a single Objective C file.
5937 sub lang_objc_rewrite
5938 {
5939 return &lang_sub_obj;
5940 }
5942 # Rewrite a single Unified Parallel C file.
5943 sub lang_upc_rewrite
5944 {
5945 return &lang_sub_obj;
5946 }
5948 # Rewrite a single Java file.
5949 sub lang_java_rewrite
5950 {
5951 return LANG_SUBDIR;
5952 }
5954 # The lang_X_finish functions are called after all source file
5955 # processing is done. Each should handle defining rules for the
5956 # language, etc. A finish function is only called if a source file of
5957 # the appropriate type has been seen.
5959 sub lang_c_finish
5960 {
5961 # Push all libobjs files onto de_ansi_files. We actually only
5962 # push files which exist in the current directory, and which are
5963 # genuine source files.
5964 foreach my $file (keys %libsources)
5965 {
5966 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5967 {
5968 $de_ansi_files{$1} = ''
5969 }
5970 }
5972 if (option 'ansi2knr' && keys %de_ansi_files)
5973 {
5974 # Make all _.c files depend on their corresponding .c files.
5975 my @objects;
5976 foreach my $base (sort keys %de_ansi_files)
5977 {
5978 # Each _.c file must depend on ansi2knr; otherwise it
5979 # might be used in a parallel build before it is built.
5980 # We need to support files in the srcdir and in the build
5981 # dir (because these files might be auto-generated. But
5982 # we can't use $< -- some makes only define $< during a
5983 # suffix rule.
5984 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5985 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5986 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5987 . '`if test -f $(srcdir)/' . $ansfile
5988 . '; then echo $(srcdir)/' . $ansfile
5989 . '; else echo ' . $ansfile . '; fi` '
5990 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5991 . '| $(ANSI2KNR) > $@'
5992 # If ansi2knr fails then we shouldn't
5993 # create the _.c file
5994 . " || rm -f \$\@\n");
5995 push (@objects, $base . '_.$(OBJEXT)');
5996 push (@objects, $base . '_.lo')
5997 if var ('LIBTOOL');
5999 # Explicitly clean the _.c files if they are in a
6000 # subdirectory. (In the current directory they get erased
6001 # by a `rm -f *_.c' rule.)
6002 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
6003 if dirname ($base) ne '.';
6004 }
6006 # Make all _.o (and _.lo) files depend on ansi2knr.
6007 # Use a sneaky little hack to make it print nicely.
6008 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
6009 }
6010 }
6012 sub lang_vala_finish_target ($$)
6013 {
6014 my ($self, $name) = @_;
6016 my $derived = canonicalize ($name);
6017 my $varname = $derived . '_SOURCES';
6018 my $var = var ($varname);
6020 if ($var)
6021 {
6022 foreach my $file ($var->value_as_list_recursive)
6023 {
6024 $output_rules .= "\$(srcdir)/$file: \$(srcdir)/${derived}_vala.stamp\n"
6025 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6026 . "\t\@if test -f \$@; then :; else \\\n"
6027 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6028 . "\tfi\n"
6029 if $file =~ s/(.*)\.vala$/$1.c/;
6030 }
6031 }
6033 # Add rebuild rules for generated header and vapi files
6034 my $flags = var ($derived . '_VALAFLAGS');
6035 if ($flags)
6036 {
6037 my $lastflag = '';
6038 foreach my $flag ($flags->value_as_list_recursive)
6039 {
6040 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
6041 '--vapi', '--internal-vapi', '--gir')))
6042 {
6043 my $headerfile = $flag;
6044 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
6045 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6046 . "\t\@if test -f \$@; then :; else \\\n"
6047 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6048 . "\tfi\n";
6050 # valac is not used when building from dist tarballs
6051 # distribute the generated files
6052 push_dist_common ($headerfile);
6053 $clean_files{$headerfile} = MAINTAINER_CLEAN;
6054 }
6055 $lastflag = $flag;
6056 }
6057 }
6059 my $compile = $self->compile;
6061 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
6062 # rule into `${derived}_VALAFLAGS' if it exists.
6063 my $val = "${derived}_VALAFLAGS";
6064 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
6065 if set_seen ($val);
6067 # VALAFLAGS is a user variable (per GNU Standards),
6068 # it should not be overridden in the Makefile...
6069 check_user_variables ['VALAFLAGS'];
6071 my $dirname = dirname ($name);
6073 # Only generate C code, do not run C compiler
6074 $compile .= " -C";
6076 my $verbose = verbose_flag ('VALAC');
6077 my $silent = silent_flag ();
6079 $output_rules .=
6080 "\$(srcdir)/${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
6081 # Since the C files generated from the vala sources depend on the
6082 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
6083 # those of the C files generated by the valac invocation below (this is
6084 # especially important on systems with sub-second timestamp resolution).
6085 # Thus we need to create the stamp file *before* invoking valac, and to
6086 # move it to its final location only after valac has been invoked.
6087 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
6088 "\t${verbose}\$(am__cd) \$(srcdir) && ${compile} \$(${derived}_SOURCES)\n".
6089 "\t${silent}mv -f \$\@-t \$\@\n";
6091 push_dist_common ("${derived}_vala.stamp");
6093 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6094 }
6096 # Add output rules to invoke valac and create stamp file as a witness
6097 # to handle multiple outputs. This function is called after all source
6098 # file processing is done.
6099 sub lang_vala_finish
6100 {
6101 my ($self) = @_;
6103 foreach my $prog (keys %known_programs)
6104 {
6105 lang_vala_finish_target ($self, $prog);
6106 }
6108 while (my ($name) = each %known_libraries)
6109 {
6110 lang_vala_finish_target ($self, $name);
6111 }
6112 }
6114 # The built .c files should be cleaned only on maintainer-clean
6115 # as the .c files are distributed. This function is called for each
6116 # .vala source file.
6117 sub lang_vala_target_hook
6118 {
6119 my ($self, $aggregate, $output, $input, %transform) = @_;
6121 $clean_files{$output} = MAINTAINER_CLEAN;
6122 }
6124 # This is a yacc helper which is called whenever we have decided to
6125 # compile a yacc file.
6126 sub lang_yacc_target_hook
6127 {
6128 my ($self, $aggregate, $output, $input, %transform) = @_;
6130 my $flag = $aggregate . "_YFLAGS";
6131 my $flagvar = var $flag;
6132 my $YFLAGSvar = var 'YFLAGS';
6133 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6134 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6135 {
6136 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6137 my $header = $output_base . '.h';
6139 # Found a `-d' that applies to the compilation of this file.
6140 # Add a dependency for the generated header file, and arrange
6141 # for that file to be included in the distribution.
6142 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6143 RULE_AUTOMAKE, TRUE,
6144 INTERNAL))
6145 {
6146 my $condstr = $cond->subst_string;
6147 $output_rules .=
6148 "$condstr${header}: $output\n"
6149 # Recover from removal of $header
6150 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
6151 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
6152 }
6153 # Distribute the generated file, unless its .y source was
6154 # listed in a nodist_ variable. (&handle_source_transform
6155 # will set DIST_SOURCE.)
6156 &push_dist_common ($header)
6157 if $transform{'DIST_SOURCE'};
6159 # If the files are built in the build directory, then we want
6160 # to remove them with `make clean'. If they are in srcdir
6161 # they shouldn't be touched. However, we can't determine this
6162 # statically, and the GNU rules say that yacc/lex output files
6163 # should be removed by maintainer-clean. So that's what we
6164 # do.
6165 $clean_files{$header} = MAINTAINER_CLEAN;
6166 }
6167 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6168 # See the comment above for $HEADER.
6169 $clean_files{$output} = MAINTAINER_CLEAN;
6170 }
6172 # This is a lex helper which is called whenever we have decided to
6173 # compile a lex file.
6174 sub lang_lex_target_hook
6175 {
6176 my ($self, $aggregate, $output, $input) = @_;
6177 # If the files are built in the build directory, then we want to
6178 # remove them with `make clean'. If they are in srcdir they
6179 # shouldn't be touched. However, we can't determine this
6180 # statically, and the GNU rules say that yacc/lex output files
6181 # should be removed by maintainer-clean. So that's what we do.
6182 $clean_files{$output} = MAINTAINER_CLEAN;
6183 }
6185 # This is a helper for both lex and yacc.
6186 sub yacc_lex_finish_helper
6187 {
6188 return if defined $language_scratch{'lex-yacc-done'};
6189 $language_scratch{'lex-yacc-done'} = 1;
6191 # FIXME: for now, no line number.
6192 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6193 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6194 }
6196 sub lang_yacc_finish
6197 {
6198 return if defined $language_scratch{'yacc-done'};
6199 $language_scratch{'yacc-done'} = 1;
6201 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6203 yacc_lex_finish_helper;
6204 }
6207 sub lang_lex_finish
6208 {
6209 return if defined $language_scratch{'lex-done'};
6210 $language_scratch{'lex-done'} = 1;
6212 yacc_lex_finish_helper;
6213 }
6216 # Given a hash table of linker names, pick the name that has the most
6217 # precedence. This is lame, but something has to have global
6218 # knowledge in order to eliminate the conflict. Add more linkers as
6219 # required.
6220 sub resolve_linker
6221 {
6222 my (%linkers) = @_;
6224 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6225 {
6226 return $l if defined $linkers{$l};
6227 }
6228 return 'LINK';
6229 }
6231 # Called to indicate that an extension was used.
6232 sub saw_extension
6233 {
6234 my ($ext) = @_;
6235 if (! defined $extension_seen{$ext})
6236 {
6237 $extension_seen{$ext} = 1;
6238 }
6239 else
6240 {
6241 ++$extension_seen{$ext};
6242 }
6243 }
6245 # Return the number of files seen for a given language. Knows about
6246 # special cases we care about. FIXME: this is hideous. We need
6247 # something that involves real language objects. For instance yacc
6248 # and yaccxx could both derive from a common yacc class which would
6249 # know about the strange ylwrap requirement. (Or better yet we could
6250 # just not support legacy yacc!)
6251 sub count_files_for_language
6252 {
6253 my ($name) = @_;
6255 my @names;
6256 if ($name eq 'yacc' || $name eq 'yaccxx')
6257 {
6258 @names = ('yacc', 'yaccxx');
6259 }
6260 elsif ($name eq 'lex' || $name eq 'lexxx')
6261 {
6262 @names = ('lex', 'lexxx');
6263 }
6264 else
6265 {
6266 @names = ($name);
6267 }
6269 my $r = 0;
6270 foreach $name (@names)
6271 {
6272 my $lang = $languages{$name};
6273 foreach my $ext (@{$lang->extensions})
6274 {
6275 $r += $extension_seen{$ext}
6276 if defined $extension_seen{$ext};
6277 }
6278 }
6280 return $r
6281 }
6283 # Called to ask whether source files have been seen . If HEADERS is 1,
6284 # headers can be included.
6285 sub saw_sources_p
6286 {
6287 my ($headers) = @_;
6289 # count all the sources
6290 my $count = 0;
6291 foreach my $val (values %extension_seen)
6292 {
6293 $count += $val;
6294 }
6296 if (!$headers)
6297 {
6298 $count -= count_files_for_language ('header');
6299 }
6301 return $count > 0;
6302 }
6305 # register_language (%ATTRIBUTE)
6306 # ------------------------------
6307 # Register a single language.
6308 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6309 sub register_language (%)
6310 {
6311 my (%option) = @_;
6313 # Set the defaults.
6314 $option{'ansi'} = 0
6315 unless defined $option{'ansi'};
6316 $option{'autodep'} = 'no'
6317 unless defined $option{'autodep'};
6318 $option{'linker'} = ''
6319 unless defined $option{'linker'};
6320 $option{'flags'} = []
6321 unless defined $option{'flags'};
6322 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6323 unless defined $option{'output_extensions'};
6324 $option{'nodist_specific'} = 0
6325 unless defined $option{'nodist_specific'};
6327 my $lang = new Language (%option);
6329 # Fill indexes.
6330 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6331 $languages{$lang->name} = $lang;
6332 my $link = $lang->linker;
6333 if ($link)
6334 {
6335 if (exists $link_languages{$link})
6336 {
6337 prog_error ("`$link' has different definitions in "
6338 . $lang->name . " and " . $link_languages{$link}->name)
6339 if $lang->link ne $link_languages{$link}->link;
6340 }
6341 else
6342 {
6343 $link_languages{$link} = $lang;
6344 }
6345 }
6347 # Update the pattern of known extensions.
6348 accept_extensions (@{$lang->extensions});
6350 # Upate the $suffix_rule map.
6351 foreach my $suffix (@{$lang->extensions})
6352 {
6353 foreach my $dest (&{$lang->output_extensions} ($suffix))
6354 {
6355 register_suffix_rule (INTERNAL, $suffix, $dest);
6356 }
6357 }
6358 }
6360 # derive_suffix ($EXT, $OBJ)
6361 # --------------------------
6362 # This function is used to find a path from a user-specified suffix $EXT
6363 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6364 sub derive_suffix ($$)
6365 {
6366 my ($source_ext, $obj) = @_;
6368 while (! $extension_map{$source_ext}
6369 && $source_ext ne $obj
6370 && exists $suffix_rules->{$source_ext}
6371 && exists $suffix_rules->{$source_ext}{$obj})
6372 {
6373 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6374 }
6376 return $source_ext;
6377 }
6380 ################################################################
6382 # Pretty-print something and append to output_rules.
6383 sub pretty_print_rule
6384 {
6385 $output_rules .= &makefile_wrap (@_);
6386 }
6389 ################################################################
6392 ## -------------------------------- ##
6393 ## Handling the conditional stack. ##
6394 ## -------------------------------- ##
6397 # $STRING
6398 # make_conditional_string ($NEGATE, $COND)
6399 # ----------------------------------------
6400 sub make_conditional_string ($$)
6401 {
6402 my ($negate, $cond) = @_;
6403 $cond = "${cond}_TRUE"
6404 unless $cond =~ /^TRUE|FALSE$/;
6405 $cond = Automake::Condition::conditional_negate ($cond)
6406 if $negate;
6407 return $cond;
6408 }
6411 my %_am_macro_for_cond =
6412 (
6413 AMDEP => "one of the compiler tests\n"
6414 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6415 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6416 am__fastdepCC => 'AC_PROG_CC',
6417 am__fastdepCCAS => 'AM_PROG_AS',
6418 am__fastdepCXX => 'AC_PROG_CXX',
6419 am__fastdepGCJ => 'AM_PROG_GCJ',
6420 am__fastdepOBJC => 'AC_PROG_OBJC',
6421 am__fastdepUPC => 'AM_PROG_UPC'
6422 );
6424 # $COND
6425 # cond_stack_if ($NEGATE, $COND, $WHERE)
6426 # --------------------------------------
6427 sub cond_stack_if ($$$)
6428 {
6429 my ($negate, $cond, $where) = @_;
6431 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6432 {
6433 my $text = "$cond does not appear in AM_CONDITIONAL";
6434 my $scope = US_LOCAL;
6435 if (exists $_am_macro_for_cond{$cond})
6436 {
6437 my $mac = $_am_macro_for_cond{$cond};
6438 $text .= "\n The usual way to define `$cond' is to add ";
6439 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6440 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6441 # These warnings appear in Automake files (depend2.am),
6442 # so there is no need to display them more than once:
6443 $scope = US_GLOBAL;
6444 }
6445 error $where, $text, uniq_scope => $scope;
6446 }
6448 push (@cond_stack, make_conditional_string ($negate, $cond));
6450 return new Automake::Condition (@cond_stack);
6451 }
6454 # $COND
6455 # cond_stack_else ($NEGATE, $COND, $WHERE)
6456 # ----------------------------------------
6457 sub cond_stack_else ($$$)
6458 {
6459 my ($negate, $cond, $where) = @_;
6461 if (! @cond_stack)
6462 {
6463 error $where, "else without if";
6464 return FALSE;
6465 }
6467 $cond_stack[$#cond_stack] =
6468 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6470 # If $COND is given, check against it.
6471 if (defined $cond)
6472 {
6473 $cond = make_conditional_string ($negate, $cond);
6475 error ($where, "else reminder ($negate$cond) incompatible with "
6476 . "current conditional: $cond_stack[$#cond_stack]")
6477 if $cond_stack[$#cond_stack] ne $cond;
6478 }
6480 return new Automake::Condition (@cond_stack);
6481 }
6484 # $COND
6485 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6486 # -----------------------------------------
6487 sub cond_stack_endif ($$$)
6488 {
6489 my ($negate, $cond, $where) = @_;
6490 my $old_cond;
6492 if (! @cond_stack)
6493 {
6494 error $where, "endif without if";
6495 return TRUE;
6496 }
6498 # If $COND is given, check against it.
6499 if (defined $cond)
6500 {
6501 $cond = make_conditional_string ($negate, $cond);
6503 error ($where, "endif reminder ($negate$cond) incompatible with "
6504 . "current conditional: $cond_stack[$#cond_stack]")
6505 if $cond_stack[$#cond_stack] ne $cond;
6506 }
6508 pop @cond_stack;
6510 return new Automake::Condition (@cond_stack);
6511 }
6517 ## ------------------------ ##
6518 ## Handling the variables. ##
6519 ## ------------------------ ##
6522 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6523 # -----------------------------------------------------
6524 # Like define_variable, but the value is a list, and the variable may
6525 # be defined conditionally. The second argument is the condition
6526 # under which the value should be defined; this should be the empty
6527 # string to define the variable unconditionally. The third argument
6528 # is a list holding the values to use for the variable. The value is
6529 # pretty printed in the output file.
6530 sub define_pretty_variable ($$$@)
6531 {
6532 my ($var, $cond, $where, @value) = @_;
6534 if (! vardef ($var, $cond))
6535 {
6536 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6537 '', $where, VAR_PRETTY);
6538 rvar ($var)->rdef ($cond)->set_seen;
6539 }
6540 }
6543 # define_variable ($VAR, $VALUE, $WHERE)
6544 # --------------------------------------
6545 # Define a new Automake Makefile variable VAR to VALUE, but only if
6546 # not already defined.
6547 sub define_variable ($$$)
6548 {
6549 my ($var, $value, $where) = @_;
6550 define_pretty_variable ($var, TRUE, $where, $value);
6551 }
6554 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6555 # ------------------------------------------------------------
6556 # Define the $VAR which content is the list of file names composed of
6557 # a @BASENAME and the $EXTENSION.
6558 sub define_files_variable ($\@$$)
6559 {
6560 my ($var, $basename, $extension, $where) = @_;
6561 define_variable ($var,
6562 join (' ', map { "$_.$extension" } @$basename),
6563 $where);
6564 }
6567 # Like define_variable, but define a variable to be the configure
6568 # substitution by the same name.
6569 sub define_configure_variable ($)
6570 {
6571 my ($var) = @_;
6573 my $pretty = VAR_ASIS;
6574 my $owner = VAR_CONFIGURE;
6576 # Some variables we do not want to output. For instance it
6577 # would be a bad idea to output `U = @U@` when `@U@` can be
6578 # substituted as `\`.
6579 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6581 # ANSI2KNR is a variable that Automake wants to redefine, so
6582 # it must be owned by Automake. (It is also used as a proof
6583 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6584 # omit the AC_SUBST.)
6585 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6587 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6588 '', $configure_vars{$var}, $pretty);
6589 }
6592 # define_compiler_variable ($LANG)
6593 # --------------------------------
6594 # Define a compiler variable. We also handle defining the `LT'
6595 # version of the command when using libtool.
6596 sub define_compiler_variable ($)
6597 {
6598 my ($lang) = @_;
6600 my ($var, $value) = ($lang->compiler, $lang->compile);
6601 my $libtool_tag = '';
6602 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6603 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6604 &define_variable ($var, $value, INTERNAL);
6605 if (var ('LIBTOOL'))
6606 {
6607 my $verbose = define_verbose_libtool ();
6608 &define_variable ("LT$var",
6609 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6610 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6611 INTERNAL);
6612 }
6613 define_verbose_tagvar ($lang->ccer || 'GEN');
6614 }
6617 # define_linker_variable ($LANG)
6618 # ------------------------------
6619 # Define linker variables.
6620 sub define_linker_variable ($)
6621 {
6622 my ($lang) = @_;
6624 my $libtool_tag = '';
6625 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6626 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6627 # CCLD = $(CC).
6628 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6629 # CCLINK = $(CCLD) blah blah...
6630 my $link = '';
6631 if (var ('LIBTOOL'))
6632 {
6633 my $verbose = define_verbose_libtool ();
6634 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6635 . "\$(LIBTOOLFLAGS) --mode=link ";
6636 }
6637 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6638 &define_variable ($lang->compiler, $lang);
6639 &define_verbose_tagvar ($lang->lder || 'GEN');
6640 }
6642 sub define_per_target_linker_variable ($$)
6643 {
6644 my ($linker, $target) = @_;
6646 # If the user wrote a custom link command, we don't define ours.
6647 return "${target}_LINK"
6648 if set_seen "${target}_LINK";
6650 my $xlink = $linker ? $linker : 'LINK';
6652 my $lang = $link_languages{$xlink};
6653 prog_error "Unknown language for linker variable `$xlink'"
6654 unless $lang;
6656 my $link_command = $lang->link;
6657 if (var 'LIBTOOL')
6658 {
6659 my $libtool_tag = '';
6660 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6661 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6663 my $verbose = define_verbose_libtool ();
6664 $link_command =
6665 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6666 . "--mode=link " . $link_command;
6667 }
6669 # Rewrite each occurrence of `AM_$flag' in the link
6670 # command into `${derived}_$flag' if it exists.
6671 my $orig_command = $link_command;
6672 my @flags = (@{$lang->flags}, 'LDFLAGS');
6673 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6674 for my $flag (@flags)
6675 {
6676 my $val = "${target}_$flag";
6677 $link_command =~ s/\(AM_$flag\)/\($val\)/
6678 if set_seen ($val);
6679 }
6681 # If the computed command is the same as the generic command, use
6682 # the command linker variable.
6683 return ($lang->linker, $lang->lder)
6684 if $link_command eq $orig_command;
6686 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6687 return ("${target}_LINK", $lang->lder);
6688 }
6690 ################################################################
6692 # &check_trailing_slash ($WHERE, $LINE)
6693 # -------------------------------------
6694 # Return 1 iff $LINE ends with a slash.
6695 # Might modify $LINE.
6696 sub check_trailing_slash ($\$)
6697 {
6698 my ($where, $line) = @_;
6700 # Ignore `##' lines.
6701 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6703 # Catch and fix a common error.
6704 msg "syntax", $where, "whitespace following trailing backslash"
6705 if $$line =~ s/\\\s+\n$/\\\n/;
6707 return $$line =~ /\\$/;
6708 }
6711 # &read_am_file ($AMFILE, $WHERE)
6712 # -------------------------------
6713 # Read Makefile.am and set up %contents. Simultaneously copy lines
6714 # from Makefile.am into $output_trailer, or define variables as
6715 # appropriate. NOTE we put rules in the trailer section. We want
6716 # user rules to come after our generated stuff.
6717 sub read_am_file ($$)
6718 {
6719 my ($amfile, $where) = @_;
6721 my $am_file = new Automake::XFile ("< $amfile");
6722 verb "reading $amfile";
6724 # Keep track of the youngest output dependency.
6725 my $mtime = mtime $amfile;
6726 $output_deps_greatest_timestamp = $mtime
6727 if $mtime > $output_deps_greatest_timestamp;
6729 my $spacing = '';
6730 my $comment = '';
6731 my $blank = 0;
6732 my $saw_bk = 0;
6733 my $var_look = VAR_ASIS;
6735 use constant IN_VAR_DEF => 0;
6736 use constant IN_RULE_DEF => 1;
6737 use constant IN_COMMENT => 2;
6738 my $prev_state = IN_RULE_DEF;
6740 while ($_ = $am_file->getline)
6741 {
6742 $where->set ("$amfile:$.");
6743 if (/$IGNORE_PATTERN/o)
6744 {
6745 # Merely delete comments beginning with two hashes.
6746 }
6747 elsif (/$WHITE_PATTERN/o)
6748 {
6749 error $where, "blank line following trailing backslash"
6750 if $saw_bk;
6751 # Stick a single white line before the incoming macro or rule.
6752 $spacing = "\n";
6753 $blank = 1;
6754 # Flush all comments seen so far.
6755 if ($comment ne '')
6756 {
6757 $output_vars .= $comment;
6758 $comment = '';
6759 }
6760 }
6761 elsif (/$COMMENT_PATTERN/o)
6762 {
6763 # Stick comments before the incoming macro or rule. Make
6764 # sure a blank line precedes the first block of comments.
6765 $spacing = "\n" unless $blank;
6766 $blank = 1;
6767 $comment .= $spacing . $_;
6768 $spacing = '';
6769 $prev_state = IN_COMMENT;
6770 }
6771 else
6772 {
6773 last;
6774 }
6775 $saw_bk = check_trailing_slash ($where, $_);
6776 }
6778 # We save the conditional stack on entry, and then check to make
6779 # sure it is the same on exit. This lets us conditionally include
6780 # other files.
6781 my @saved_cond_stack = @cond_stack;
6782 my $cond = new Automake::Condition (@cond_stack);
6784 my $last_var_name = '';
6785 my $last_var_type = '';
6786 my $last_var_value = '';
6787 my $last_where;
6788 # FIXME: shouldn't use $_ in this loop; it is too big.
6789 while ($_)
6790 {
6791 $where->set ("$amfile:$.");
6793 # Make sure the line is \n-terminated.
6794 chomp;
6795 $_ .= "\n";
6797 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6798 # used by users. @MAINT@ is an anachronism now.
6799 $_ =~ s/\@MAINT\@//g
6800 unless $seen_maint_mode;
6802 my $new_saw_bk = check_trailing_slash ($where, $_);
6804 if (/$IGNORE_PATTERN/o)
6805 {
6806 # Merely delete comments beginning with two hashes.
6808 # Keep any backslash from the previous line.
6809 $new_saw_bk = $saw_bk;
6810 }
6811 elsif (/$WHITE_PATTERN/o)
6812 {
6813 # Stick a single white line before the incoming macro or rule.
6814 $spacing = "\n";
6815 error $where, "blank line following trailing backslash"
6816 if $saw_bk;
6817 }
6818 elsif (/$COMMENT_PATTERN/o)
6819 {
6820 error $where, "comment following trailing backslash"
6821 if $saw_bk && $prev_state != IN_COMMENT;
6823 # Stick comments before the incoming macro or rule.
6824 $comment .= $spacing . $_;
6825 $spacing = '';
6826 $prev_state = IN_COMMENT;
6827 }
6828 elsif ($saw_bk)
6829 {
6830 if ($prev_state == IN_RULE_DEF)
6831 {
6832 my $cond = new Automake::Condition @cond_stack;
6833 $output_trailer .= $cond->subst_string;
6834 $output_trailer .= $_;
6835 }
6836 elsif ($prev_state == IN_COMMENT)
6837 {
6838 # If the line doesn't start with a `#', add it.
6839 # We do this because a continued comment like
6840 # # A = foo \
6841 # bar \
6842 # baz
6843 # is not portable. BSD make doesn't honor
6844 # escaped newlines in comments.
6845 s/^#?/#/;
6846 $comment .= $spacing . $_;
6847 }
6848 else # $prev_state == IN_VAR_DEF
6849 {
6850 $last_var_value .= ' '
6851 unless $last_var_value =~ /\s$/;
6852 $last_var_value .= $_;
6854 if (!/\\$/)
6855 {
6856 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6857 $last_var_type, $cond,
6858 $last_var_value, $comment,
6859 $last_where, VAR_ASIS)
6860 if $cond != FALSE;
6861 $comment = $spacing = '';
6862 }
6863 }
6864 }
6866 elsif (/$IF_PATTERN/o)
6867 {
6868 $cond = cond_stack_if ($1, $2, $where);
6869 }
6870 elsif (/$ELSE_PATTERN/o)
6871 {
6872 $cond = cond_stack_else ($1, $2, $where);
6873 }
6874 elsif (/$ENDIF_PATTERN/o)
6875 {
6876 $cond = cond_stack_endif ($1, $2, $where);
6877 }
6879 elsif (/$RULE_PATTERN/o)
6880 {
6881 # Found a rule.
6882 $prev_state = IN_RULE_DEF;
6884 # For now we have to output all definitions of user rules
6885 # and can't diagnose duplicates (see the comment in
6886 # Automake::Rule::define). So we go on and ignore the return value.
6887 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6889 check_variable_expansions ($_, $where);
6891 $output_trailer .= $comment . $spacing;
6892 my $cond = new Automake::Condition @cond_stack;
6893 $output_trailer .= $cond->subst_string;
6894 $output_trailer .= $_;
6895 $comment = $spacing = '';
6896 }
6897 elsif (/$ASSIGNMENT_PATTERN/o)
6898 {
6899 # Found a macro definition.
6900 $prev_state = IN_VAR_DEF;
6901 $last_var_name = $1;
6902 $last_var_type = $2;
6903 $last_var_value = $3;
6904 $last_where = $where->clone;
6905 if ($3 ne '' && substr ($3, -1) eq "\\")
6906 {
6907 # We preserve the `\' because otherwise the long lines
6908 # that are generated will be truncated by broken
6909 # `sed's.
6910 $last_var_value = $3 . "\n";
6911 }
6912 # Normally we try to output variable definitions in the
6913 # same format they were input. However, POSIX compliant
6914 # systems are not required to support lines longer than
6915 # 2048 bytes (most notably, some sed implementation are
6916 # limited to 4000 bytes, and sed is used by config.status
6917 # to rewrite Makefile.in into Makefile). Moreover nobody
6918 # would really write such long lines by hand since it is
6919 # hardly maintainable. So if a line is longer that 1000
6920 # bytes (an arbitrary limit), assume it has been
6921 # automatically generated by some tools, and flatten the
6922 # variable definition. Otherwise, keep the variable as it
6923 # as been input.
6924 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6926 if (!/\\$/)
6927 {
6928 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6929 $last_var_type, $cond,
6930 $last_var_value, $comment,
6931 $last_where, $var_look)
6932 if $cond != FALSE;
6933 $comment = $spacing = '';
6934 $var_look = VAR_ASIS;
6935 }
6936 }
6937 elsif (/$INCLUDE_PATTERN/o)
6938 {
6939 my $path = $1;
6941 if ($path =~ s/^\$\(top_srcdir\)\///)
6942 {
6943 push (@include_stack, "\$\(top_srcdir\)/$path");
6944 # Distribute any included file.
6946 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6947 # otherwise OSF make will implicitly copy the included
6948 # file in the build tree during `make distdir' to satisfy
6949 # the dependency.
6950 # (subdircond2.test and subdircond3.test will fail.)
6951 push_dist_common ("\$\(top_srcdir\)/$path");
6952 }
6953 else
6954 {
6955 $path =~ s/\$\(srcdir\)\///;
6956 push (@include_stack, "\$\(srcdir\)/$path");
6957 # Always use the $(srcdir) prefix in DIST_COMMON,
6958 # otherwise OSF make will implicitly copy the included
6959 # file in the build tree during `make distdir' to satisfy
6960 # the dependency.
6961 # (subdircond2.test and subdircond3.test will fail.)
6962 push_dist_common ("\$\(srcdir\)/$path");
6963 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6964 }
6965 $where->push_context ("`$path' included from here");
6966 &read_am_file ($path, $where);
6967 $where->pop_context;
6968 }
6969 else
6970 {
6971 # This isn't an error; it is probably a continued rule.
6972 # In fact, this is what we assume.
6973 $prev_state = IN_RULE_DEF;
6974 check_variable_expansions ($_, $where);
6975 $output_trailer .= $comment . $spacing;
6976 my $cond = new Automake::Condition @cond_stack;
6977 $output_trailer .= $cond->subst_string;
6978 $output_trailer .= $_;
6979 $comment = $spacing = '';
6980 error $where, "`#' comment at start of rule is unportable"
6981 if $_ =~ /^\t\s*\#/;
6982 }
6984 $saw_bk = $new_saw_bk;
6985 $_ = $am_file->getline;
6986 }
6988 $output_trailer .= $comment;
6990 error ($where, "trailing backslash on last line")
6991 if $saw_bk;
6993 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6994 : "too many conditionals closed in include file"))
6995 if "@saved_cond_stack" ne "@cond_stack";
6996 }
6999 # define_standard_variables ()
7000 # ----------------------------
7001 # A helper for read_main_am_file which initializes configure variables
7002 # and variables from header-vars.am.
7003 sub define_standard_variables
7004 {
7005 my $saved_output_vars = $output_vars;
7006 my ($comments, undef, $rules) =
7007 file_contents_internal (1, "$libdir/am/header-vars.am",
7008 new Automake::Location);
7010 foreach my $var (sort keys %configure_vars)
7011 {
7012 &define_configure_variable ($var);
7013 }
7015 $output_vars .= $comments . $rules;
7016 }
7018 # Read main am file.
7019 sub read_main_am_file
7020 {
7021 my ($amfile) = @_;
7023 # This supports the strange variable tricks we are about to play.
7024 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
7025 if (scalar (variables) > 0);
7027 # Generate copyright header for generated Makefile.in.
7028 # We do discard the output of predefined variables, handled below.
7029 $output_vars = ("# $in_file_name generated by automake "
7030 . $VERSION . " from $am_file_name.\n");
7031 $output_vars .= '# ' . subst ('configure_input') . "\n";
7032 $output_vars .= $gen_copyright;
7034 # We want to predefine as many variables as possible. This lets
7035 # the user set them with `+=' in Makefile.am.
7036 &define_standard_variables;
7038 # Read user file, which might override some of our values.
7039 &read_am_file ($amfile, new Automake::Location);
7040 }
7044 ################################################################
7046 # $FLATTENED
7047 # &flatten ($STRING)
7048 # ------------------
7049 # Flatten the $STRING and return the result.
7050 sub flatten
7051 {
7052 $_ = shift;
7054 s/\\\n//somg;
7055 s/\s+/ /g;
7056 s/^ //;
7057 s/ $//;
7059 return $_;
7060 }
7063 # transform_token ($TOKEN, \%PAIRS, $KEY)
7064 # =======================================
7065 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
7066 # (which should be ?KEY? or any of the special %% requests)..
7067 sub transform_token ($$$)
7068 {
7069 my ($token, $transform, $key) = @_;
7070 my $res = $transform->{$key};
7071 prog_error "Unknown key `$key' in `$token'" unless defined $res;
7072 return $res;
7073 }
7076 # transform ($TOKEN, \%PAIRS)
7077 # ===========================
7078 # If ($TOKEN, $VAL) is in %PAIRS:
7079 # - replaces %KEY% with $VAL,
7080 # - enables/disables ?KEY? and ?!KEY?,
7081 # - replaces %?KEY% with TRUE or FALSE.
7082 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
7083 # IFTRUE / IFFALSE, as appropriate.
7084 sub transform ($$)
7085 {
7086 my ($token, $transform) = @_;
7088 # %KEY%.
7089 # Must be before the following pattern to exclude the case
7090 # when there is neither IFTRUE nor IFFALSE.
7091 if ($token =~ /^%([\w\-]+)%$/)
7092 {
7093 return transform_token ($token, $transform, $1);
7094 }
7095 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7096 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7097 {
7098 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
7099 }
7100 # %?KEY%.
7101 elsif ($token =~ /^%\?([\w\-]+)%$/)
7102 {
7103 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7104 }
7105 # ?KEY? and ?!KEY?.
7106 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7107 {
7108 my $neg = ($1 eq '!') ? 1 : 0;
7109 my $val = transform_token ($token, $transform, $2);
7110 return (!!$val == $neg) ? '##%' : '';
7111 }
7112 else
7113 {
7114 prog_error "Unknown request format: $token";
7115 }
7116 }
7119 # @PARAGRAPHS
7120 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7121 # ------------------------------------------
7122 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7123 # paragraphs.
7124 sub make_paragraphs ($%)
7125 {
7126 my ($file, %transform) = @_;
7128 # Complete %transform with global options.
7129 # Note that %transform goes last, so it overrides global options.
7130 %transform = ('CYGNUS' => !! option 'cygnus',
7131 'MAINTAINER-MODE'
7132 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7134 'XZ' => !! option 'dist-xz',
7135 'LZMA' => !! option 'dist-lzma',
7136 'LZIP' => !! option 'dist-lzip',
7137 'BZIP2' => !! option 'dist-bzip2',
7138 'COMPRESS' => !! option 'dist-tarZ',
7139 'GZIP' => ! option 'no-dist-gzip',
7140 'SHAR' => !! option 'dist-shar',
7141 'ZIP' => !! option 'dist-zip',
7143 'INSTALL-INFO' => ! option 'no-installinfo',
7144 'INSTALL-MAN' => ! option 'no-installman',
7145 'HAVE-MANS' => !! var ('MANS'),
7146 'CK-NEWS' => !! option 'check-news',
7148 'SUBDIRS' => !! var ('SUBDIRS'),
7149 'TOPDIR_P' => $relative_dir eq '.',
7151 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7152 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7153 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7155 'LIBTOOL' => !! var ('LIBTOOL'),
7156 'NONLIBTOOL' => 1,
7157 'FIRST' => ! $transformed_files{$file},
7158 %transform);
7160 $transformed_files{$file} = 1;
7161 $_ = $am_file_cache{$file};
7163 if (! defined $_)
7164 {
7165 verb "reading $file";
7166 # Swallow the whole file.
7167 my $fc_file = new Automake::XFile "< $file";
7168 my $saved_dollar_slash = $/;
7169 undef $/;
7170 $_ = $fc_file->getline;
7171 $/ = $saved_dollar_slash;
7172 $fc_file->close;
7174 # Remove ##-comments.
7175 # Besides we don't need more than two consecutive new-lines.
7176 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7178 $am_file_cache{$file} = $_;
7179 }
7181 # Substitute Automake template tokens.
7182 s/(?: % \?? [\w\-]+ %
7183 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7184 | \? !? [\w\-]+ \?
7185 )/transform($&, \%transform)/gex;
7186 # transform() may have added some ##%-comments to strip.
7187 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7188 # ####### and do not remove the latter.)
7189 s/^[ \t]*(?:##%)+.*\n//gm;
7191 # Split at unescaped new lines.
7192 my @lines = split (/(?<!\\)\n/, $_);
7193 my @res;
7195 while (defined ($_ = shift @lines))
7196 {
7197 my $paragraph = $_;
7198 # If we are a rule, eat as long as we start with a tab.
7199 if (/$RULE_PATTERN/smo)
7200 {
7201 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7202 {
7203 $paragraph .= "\n$_";
7204 }
7205 unshift (@lines, $_);
7206 }
7208 # If we are a comments, eat as much comments as you can.
7209 elsif (/$COMMENT_PATTERN/smo)
7210 {
7211 while (defined ($_ = shift @lines)
7212 && $_ =~ /$COMMENT_PATTERN/smo)
7213 {
7214 $paragraph .= "\n$_";
7215 }
7216 unshift (@lines, $_);
7217 }
7219 push @res, $paragraph;
7220 }
7222 return @res;
7223 }
7227 # ($COMMENT, $VARIABLES, $RULES)
7228 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7229 # -------------------------------------------------------------
7230 # Return contents of a file from $libdir/am, automatically skipping
7231 # macros or rules which are already known. $IS_AM iff the caller is
7232 # reading an Automake file (as opposed to the user's Makefile.am).
7233 sub file_contents_internal ($$$%)
7234 {
7235 my ($is_am, $file, $where, %transform) = @_;
7237 $where->set ($file);
7239 my $result_vars = '';
7240 my $result_rules = '';
7241 my $comment = '';
7242 my $spacing = '';
7244 # The following flags are used to track rules spanning across
7245 # multiple paragraphs.
7246 my $is_rule = 0; # 1 if we are processing a rule.
7247 my $discard_rule = 0; # 1 if the current rule should not be output.
7249 # We save the conditional stack on entry, and then check to make
7250 # sure it is the same on exit. This lets us conditionally include
7251 # other files.
7252 my @saved_cond_stack = @cond_stack;
7253 my $cond = new Automake::Condition (@cond_stack);
7255 foreach (make_paragraphs ($file, %transform))
7256 {
7257 # FIXME: no line number available.
7258 $where->set ($file);
7260 # Sanity checks.
7261 error $where, "blank line following trailing backslash:\n$_"
7262 if /\\$/;
7263 error $where, "comment following trailing backslash:\n$_"
7264 if /\\#/;
7266 if (/^$/)
7267 {
7268 $is_rule = 0;
7269 # Stick empty line before the incoming macro or rule.
7270 $spacing = "\n";
7271 }
7272 elsif (/$COMMENT_PATTERN/mso)
7273 {
7274 $is_rule = 0;
7275 # Stick comments before the incoming macro or rule.
7276 $comment = "$_\n";
7277 }
7279 # Handle inclusion of other files.
7280 elsif (/$INCLUDE_PATTERN/o)
7281 {
7282 if ($cond != FALSE)
7283 {
7284 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7285 $where->push_context ("`$file' included from here");
7286 # N-ary `.=' fails.
7287 my ($com, $vars, $rules)
7288 = file_contents_internal ($is_am, $file, $where, %transform);
7289 $where->pop_context;
7290 $comment .= $com;
7291 $result_vars .= $vars;
7292 $result_rules .= $rules;
7293 }
7294 }
7296 # Handling the conditionals.
7297 elsif (/$IF_PATTERN/o)
7298 {
7299 $cond = cond_stack_if ($1, $2, $file);
7300 }
7301 elsif (/$ELSE_PATTERN/o)
7302 {
7303 $cond = cond_stack_else ($1, $2, $file);
7304 }
7305 elsif (/$ENDIF_PATTERN/o)
7306 {
7307 $cond = cond_stack_endif ($1, $2, $file);
7308 }
7310 # Handling rules.
7311 elsif (/$RULE_PATTERN/mso)
7312 {
7313 $is_rule = 1;
7314 $discard_rule = 0;
7315 # Separate relationship from optional actions: the first
7316 # `new-line tab" not preceded by backslash (continuation
7317 # line).
7318 my $paragraph = $_;
7319 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7320 my ($relationship, $actions) = ($1, $2 || '');
7322 # Separate targets from dependencies: the first colon.
7323 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7324 my ($targets, $dependencies) = ($1, $2);
7325 # Remove the escaped new lines.
7326 # I don't know why, but I have to use a tmp $flat_deps.
7327 my $flat_deps = &flatten ($dependencies);
7328 my @deps = split (' ', $flat_deps);
7330 foreach (split (' ', $targets))
7331 {
7332 # FIXME: 1. We are not robust to people defining several targets
7333 # at once, only some of them being in %dependencies. The
7334 # actions from the targets in %dependencies are usually generated
7335 # from the content of %actions, but if some targets in $targets
7336 # are not in %dependencies the ELSE branch will output
7337 # a rule for all $targets (i.e. the targets which are both
7338 # in %dependencies and $targets will have two rules).
7340 # FIXME: 2. The logic here is not able to output a
7341 # multi-paragraph rule several time (e.g. for each condition
7342 # it is defined for) because it only knows the first paragraph.
7344 # FIXME: 3. We are not robust to people defining a subset
7345 # of a previously defined "multiple-target" rule. E.g.
7346 # `foo:' after `foo bar:'.
7348 # Output only if not in FALSE.
7349 if (defined $dependencies{$_} && $cond != FALSE)
7350 {
7351 &depend ($_, @deps);
7352 register_action ($_, $actions);
7353 }
7354 else
7355 {
7356 # Free-lance dependency. Output the rule for all the
7357 # targets instead of one by one.
7358 my @undefined_conds =
7359 Automake::Rule::define ($targets, $file,
7360 $is_am ? RULE_AUTOMAKE : RULE_USER,
7361 $cond, $where);
7362 for my $undefined_cond (@undefined_conds)
7363 {
7364 my $condparagraph = $paragraph;
7365 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7366 $result_rules .= "$spacing$comment$condparagraph\n";
7367 }
7368 if (scalar @undefined_conds == 0)
7369 {
7370 # Remember to discard next paragraphs
7371 # if they belong to this rule.
7372 # (but see also FIXME: #2 above.)
7373 $discard_rule = 1;
7374 }
7375 $comment = $spacing = '';
7376 last;
7377 }
7378 }
7379 }
7381 elsif (/$ASSIGNMENT_PATTERN/mso)
7382 {
7383 my ($var, $type, $val) = ($1, $2, $3);
7384 error $where, "variable `$var' with trailing backslash"
7385 if /\\$/;
7387 $is_rule = 0;
7389 Automake::Variable::define ($var,
7390 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7391 $type, $cond, $val, $comment, $where,
7392 VAR_ASIS)
7393 if $cond != FALSE;
7395 $comment = $spacing = '';
7396 }
7397 else
7398 {
7399 # This isn't an error; it is probably some tokens which
7400 # configure is supposed to replace, such as `@SET-MAKE@',
7401 # or some part of a rule cut by an if/endif.
7402 if (! $cond->false && ! ($is_rule && $discard_rule))
7403 {
7404 s/^/$cond->subst_string/gme;
7405 $result_rules .= "$spacing$comment$_\n";
7406 }
7407 $comment = $spacing = '';
7408 }
7409 }
7411 error ($where, @cond_stack ?
7412 "unterminated conditionals: @cond_stack" :
7413 "too many conditionals closed in include file")
7414 if "@saved_cond_stack" ne "@cond_stack";
7416 return ($comment, $result_vars, $result_rules);
7417 }
7420 # $CONTENTS
7421 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7422 # ------------------------------------------------
7423 # Return contents of a file from $libdir/am, automatically skipping
7424 # macros or rules which are already known.
7425 sub file_contents ($$%)
7426 {
7427 my ($basename, $where, %transform) = @_;
7428 my ($comments, $variables, $rules) =
7429 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7430 %transform);
7431 return "$comments$variables$rules";
7432 }
7435 # @PREFIX
7436 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7437 # -----------------------------------------------------
7438 # Find all variable prefixes that are used for install directories. A
7439 # prefix `zar' qualifies iff:
7440 #
7441 # * `zardir' is a variable.
7442 # * `zar_PRIMARY' is a variable.
7443 #
7444 # As a side effect, it looks for misspellings. It is an error to have
7445 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7446 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7447 # of the same name (with "dir" appended) exists. For instance, if the
7448 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7449 # This is to provide a little extra flexibility in those cases which
7450 # need it.
7451 sub am_primary_prefixes ($$@)
7452 {
7453 my ($primary, $can_dist, @prefixes) = @_;
7455 local $_;
7456 my %valid = map { $_ => 0 } @prefixes;
7457 $valid{'EXTRA'} = 0;
7458 foreach my $var (variables $primary)
7459 {
7460 # Automake is allowed to define variables that look like primaries
7461 # but which aren't. E.g. INSTALL_sh_DATA.
7462 # Autoconf can also define variables like INSTALL_DATA, so
7463 # ignore all configure variables (at least those which are not
7464 # redefined in Makefile.am).
7465 # FIXME: We should make sure that these variables are not
7466 # conditionally defined (or else adjust the condition below).
7467 my $def = $var->def (TRUE);
7468 next if $def && $def->owner != VAR_MAKEFILE;
7470 my $varname = $var->name;
7472 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7473 {
7474 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7475 if ($dist ne '' && ! $can_dist)
7476 {
7477 err_var ($var,
7478 "invalid variable `$varname': `dist' is forbidden");
7479 }
7480 # Standard directories must be explicitly allowed.
7481 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7482 {
7483 err_var ($var,
7484 "`${X}dir' is not a legitimate directory " .
7485 "for `$primary'");
7486 }
7487 # A not explicitly valid directory is allowed if Xdir is defined.
7488 elsif (! defined $valid{$X} &&
7489 $var->requires_variables ("`$varname' is used", "${X}dir"))
7490 {
7491 # Nothing to do. Any error message has been output
7492 # by $var->requires_variables.
7493 }
7494 else
7495 {
7496 # Ensure all extended prefixes are actually used.
7497 $valid{"$base$dist$X"} = 1;
7498 }
7499 }
7500 else
7501 {
7502 prog_error "unexpected variable name: $varname";
7503 }
7504 }
7506 # Return only those which are actually defined.
7507 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7508 }
7511 # Handle `where_HOW' variable magic. Does all lookups, generates
7512 # install code, and possibly generates code to define the primary
7513 # variable. The first argument is the name of the .am file to munge,
7514 # the second argument is the primary variable (e.g. HEADERS), and all
7515 # subsequent arguments are possible installation locations.
7516 #
7517 # Returns list of [$location, $value] pairs, where
7518 # $value's are the values in all where_HOW variable, and $location
7519 # there associated location (the place here their parent variables were
7520 # defined).
7521 #
7522 # FIXME: this should be rewritten to be cleaner. It should be broken
7523 # up into multiple functions.
7524 #
7525 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7526 sub am_install_var
7527 {
7528 my (@args) = @_;
7530 my $do_require = 1;
7531 my $can_dist = 0;
7532 my $default_dist = 0;
7533 while (@args)
7534 {
7535 if ($args[0] eq '-noextra')
7536 {
7537 $do_require = 0;
7538 }
7539 elsif ($args[0] eq '-candist')
7540 {
7541 $can_dist = 1;
7542 }
7543 elsif ($args[0] eq '-defaultdist')
7544 {
7545 $default_dist = 1;
7546 $can_dist = 1;
7547 }
7548 elsif ($args[0] !~ /^-/)
7549 {
7550 last;
7551 }
7552 shift (@args);
7553 }
7555 my ($file, $primary, @prefix) = @args;
7557 # Now that configure substitutions are allowed in where_HOW
7558 # variables, it is an error to actually define the primary. We
7559 # allow `JAVA', as it is customarily used to mean the Java
7560 # interpreter. This is but one of several Java hacks. Similarly,
7561 # `PYTHON' is customarily used to mean the Python interpreter.
7562 reject_var $primary, "`$primary' is an anachronism"
7563 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7565 # Get the prefixes which are valid and actually used.
7566 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7568 # If a primary includes a configure substitution, then the EXTRA_
7569 # form is required. Otherwise we can't properly do our job.
7570 my $require_extra;
7572 my @used = ();
7573 my @result = ();
7575 foreach my $X (@prefix)
7576 {
7577 my $nodir_name = $X;
7578 my $one_name = $X . '_' . $primary;
7579 my $one_var = var $one_name;
7581 my $strip_subdir = 1;
7582 # If subdir prefix should be preserved, do so.
7583 if ($nodir_name =~ /^nobase_/)
7584 {
7585 $strip_subdir = 0;
7586 $nodir_name =~ s/^nobase_//;
7587 }
7589 # If files should be distributed, do so.
7590 my $dist_p = 0;
7591 if ($can_dist)
7592 {
7593 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7594 || (! $default_dist && $nodir_name =~ /^dist_/));
7595 $nodir_name =~ s/^(dist|nodist)_//;
7596 }
7599 # Use the location of the currently processed variable.
7600 # We are not processing a particular condition, so pick the first
7601 # available.
7602 my $tmpcond = $one_var->conditions->one_cond;
7603 my $where = $one_var->rdef ($tmpcond)->location->clone;
7605 # Append actual contents of where_PRIMARY variable to
7606 # @result, skipping @substitutions@.
7607 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7608 {
7609 my ($loc, $value) = @$locvals;
7610 # Skip configure substitutions.
7611 if ($value =~ /^\@.*\@$/)
7612 {
7613 if ($nodir_name eq 'EXTRA')
7614 {
7615 error ($where,
7616 "`$one_name' contains configure substitution, "
7617 . "but shouldn't");
7618 }
7619 # Check here to make sure variables defined in
7620 # configure.ac do not imply that EXTRA_PRIMARY
7621 # must be defined.
7622 elsif (! defined $configure_vars{$one_name})
7623 {
7624 $require_extra = $one_name
7625 if $do_require;
7626 }
7627 }
7628 else
7629 {
7630 # Strip any $(EXEEXT) suffix the user might have added, or this
7631 # will confuse &handle_source_transform and &check_canonical_spelling.
7632 # We'll add $(EXEEXT) back later anyway.
7633 # Do it here rather than in handle_programs so the uniquifying at the
7634 # end of this function works.
7635 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7636 if $primary eq 'PROGRAMS';
7638 push (@result, $locvals);
7639 }
7640 }
7641 # A blatant hack: we rewrite each _PROGRAMS primary to include
7642 # EXEEXT.
7643 append_exeext { 1 } $one_name
7644 if $primary eq 'PROGRAMS';
7645 # "EXTRA" shouldn't be used when generating clean targets,
7646 # all, or install targets. We used to warn if EXTRA_FOO was
7647 # defined uselessly, but this was annoying.
7648 next
7649 if $nodir_name eq 'EXTRA';
7651 if ($nodir_name eq 'check')
7652 {
7653 push (@check, '$(' . $one_name . ')');
7654 }
7655 else
7656 {
7657 push (@used, '$(' . $one_name . ')');
7658 }
7660 # Is this to be installed?
7661 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7663 # If so, with install-exec? (or install-data?).
7664 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7666 my $check_options_p = $install_p && !! option 'std-options';
7668 # Use the location of the currently processed variable as context.
7669 $where->push_context ("while processing `$one_name'");
7671 # The variable containing all files to distribute.
7672 my $distvar = "\$($one_name)";
7673 $distvar = shadow_unconditionally ($one_name, $where)
7674 if ($dist_p && $one_var->has_conditional_contents);
7676 # Singular form of $PRIMARY.
7677 (my $one_primary = $primary) =~ s/S$//;
7678 $output_rules .= &file_contents ($file, $where,
7679 PRIMARY => $primary,
7680 ONE_PRIMARY => $one_primary,
7681 DIR => $X,
7682 NDIR => $nodir_name,
7683 BASE => $strip_subdir,
7685 EXEC => $exec_p,
7686 INSTALL => $install_p,
7687 DIST => $dist_p,
7688 DISTVAR => $distvar,
7689 'CK-OPTS' => $check_options_p);
7690 }
7692 # The JAVA variable is used as the name of the Java interpreter.
7693 # The PYTHON variable is used as the name of the Python interpreter.
7694 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7695 {
7696 # Define it.
7697 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7698 $output_vars .= "\n";
7699 }
7701 err_var ($require_extra,
7702 "`$require_extra' contains configure substitution,\n"
7703 . "but `EXTRA_$primary' not defined")
7704 if ($require_extra && ! var ('EXTRA_' . $primary));
7706 # Push here because PRIMARY might be configure time determined.
7707 push (@all, '$(' . $primary . ')')
7708 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7710 # Make the result unique. This lets the user use conditionals in
7711 # a natural way, but still lets us program lazily -- we don't have
7712 # to worry about handling a particular object more than once.
7713 # We will keep only one location per object.
7714 my %result = ();
7715 for my $pair (@result)
7716 {
7717 my ($loc, $val) = @$pair;
7718 $result{$val} = $loc;
7719 }
7720 my @l = sort keys %result;
7721 return map { [$result{$_}->clone, $_] } @l;
7722 }
7725 ################################################################
7727 # Each key in this hash is the name of a directory holding a
7728 # Makefile.in. These variables are local to `is_make_dir'.
7729 my %make_dirs = ();
7730 my $make_dirs_set = 0;
7732 sub is_make_dir
7733 {
7734 my ($dir) = @_;
7735 if (! $make_dirs_set)
7736 {
7737 foreach my $iter (@configure_input_files)
7738 {
7739 $make_dirs{dirname ($iter)} = 1;
7740 }
7741 # We also want to notice Makefile.in's.
7742 foreach my $iter (@other_input_files)
7743 {
7744 if ($iter =~ /Makefile\.in$/)
7745 {
7746 $make_dirs{dirname ($iter)} = 1;
7747 }
7748 }
7749 $make_dirs_set = 1;
7750 }
7751 return defined $make_dirs{$dir};
7752 }
7754 ################################################################
7756 # Find the aux dir. This should match the algorithm used by
7757 # ./configure. (See the Autoconf documentation for for
7758 # AC_CONFIG_AUX_DIR.)
7759 sub locate_aux_dir ()
7760 {
7761 if (! $config_aux_dir_set_in_configure_ac)
7762 {
7763 # The default auxiliary directory is the first
7764 # of ., .., or ../.. that contains install-sh.
7765 # Assume . if install-sh doesn't exist yet.
7766 for my $dir (qw (. .. ../..))
7767 {
7768 if (-f "$dir/install-sh")
7769 {
7770 $config_aux_dir = $dir;
7771 last;
7772 }
7773 }
7774 $config_aux_dir = '.' unless $config_aux_dir;
7775 }
7776 # Avoid unsightly '/.'s.
7777 $am_config_aux_dir =
7778 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7779 $am_config_aux_dir =~ s,/*$,,;
7780 }
7783 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7784 # --------------------------------------------------
7785 # See if we want to push this file onto dist_common. This function
7786 # encodes the rules for deciding when to do so.
7787 sub maybe_push_required_file
7788 {
7789 my ($dir, $file, $fullfile) = @_;
7791 if ($dir eq $relative_dir)
7792 {
7793 push_dist_common ($file);
7794 return 1;
7795 }
7796 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7797 {
7798 # If we are doing the topmost directory, and the file is in a
7799 # subdir which does not have a Makefile, then we distribute it
7800 # here.
7802 # If a required file is above the source tree, it is important
7803 # to prefix it with `$(srcdir)' so that no VPATH search is
7804 # performed. Otherwise problems occur with Make implementations
7805 # that rewrite and simplify rules whose dependencies are found in a
7806 # VPATH location. Here is an example with OSF1/Tru64 Make.
7807 #
7808 # % cat Makefile
7809 # VPATH = sub
7810 # distdir: ../a
7811 # echo ../a
7812 # % ls
7813 # Makefile a
7814 # % make
7815 # echo a
7816 # a
7817 #
7818 # Dependency `../a' was found in `sub/../a', but this make
7819 # implementation simplified it as `a'. (Note that the sub/
7820 # directory does not even exist.)
7821 #
7822 # This kind of VPATH rewriting seems hard to cancel. The
7823 # distdir.am hack against VPATH rewriting works only when no
7824 # simplification is done, i.e., for dependencies which are in
7825 # subdirectories, not in enclosing directories. Hence, in
7826 # the latter case we use a full path to make sure no VPATH
7827 # search occurs.
7828 $fullfile = '$(srcdir)/' . $fullfile
7829 if $dir =~ m,^\.\.(?:$|/),;
7831 push_dist_common ($fullfile);
7832 return 1;
7833 }
7834 return 0;
7835 }
7838 # If a file name appears as a key in this hash, then it has already
7839 # been checked for. This allows us not to report the same error more
7840 # than once.
7841 my %required_file_not_found = ();
7843 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7844 # --------------------------------------------------------------
7845 # Verify that the file must exist in $DIRECTORY, or install it.
7846 # $MYSTRICT is the strictness level at which this file becomes required.
7847 sub require_file_internal ($$$@)
7848 {
7849 my ($where, $mystrict, $dir, @files) = @_;
7851 foreach my $file (@files)
7852 {
7853 my $fullfile = "$dir/$file";
7854 my $found_it = 0;
7855 my $dangling_sym = 0;
7857 if (-l $fullfile && ! -f $fullfile)
7858 {
7859 $dangling_sym = 1;
7860 }
7861 elsif (dir_has_case_matching_file ($dir, $file))
7862 {
7863 $found_it = 1;
7864 maybe_push_required_file ($dir, $file, $fullfile);
7865 }
7867 # `--force-missing' only has an effect if `--add-missing' is
7868 # specified.
7869 if ($found_it && (! $add_missing || ! $force_missing))
7870 {
7871 next;
7872 }
7873 else
7874 {
7875 # If we've already looked for it, we're done. You might
7876 # wonder why we don't do this before searching for the
7877 # file. If we do that, then something like
7878 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7879 # DIST_COMMON.
7880 if (! $found_it)
7881 {
7882 next if defined $required_file_not_found{$fullfile};
7883 $required_file_not_found{$fullfile} = 1;
7884 }
7886 if ($strictness >= $mystrict)
7887 {
7888 if ($dangling_sym && $add_missing)
7889 {
7890 unlink ($fullfile);
7891 }
7893 my $trailer = '';
7894 my $trailer2 = '';
7895 my $suppress = 0;
7897 # Only install missing files according to our desired
7898 # strictness level.
7899 my $message = "required file `$fullfile' not found";
7900 if ($add_missing)
7901 {
7902 if (-f "$libdir/$file")
7903 {
7904 $suppress = 1;
7906 # Install the missing file. Symlink if we
7907 # can, copy if we must. Note: delete the file
7908 # first, in case it is a dangling symlink.
7909 $message = "installing `$fullfile'";
7911 # The license file should not be volatile.
7912 if ($file eq "COPYING")
7913 {
7914 $message .= " using GNU General Public License v3 file";
7915 $trailer2 = "\n Consider adding the COPYING file"
7916 . " to the version control system"
7917 . "\n for your code, to avoid questions"
7918 . " about which license your project uses.";
7919 }
7921 # Windows Perl will hang if we try to delete a
7922 # file that doesn't exist.
7923 unlink ($fullfile) if -f $fullfile;
7924 if ($symlink_exists && ! $copy_missing)
7925 {
7926 if (! symlink ("$libdir/$file", $fullfile)
7927 || ! -e $fullfile)
7928 {
7929 $suppress = 0;
7930 $trailer = "; error while making link: $!";
7931 }
7932 }
7933 elsif (system ('cp', "$libdir/$file", $fullfile))
7934 {
7935 $suppress = 0;
7936 $trailer = "\n error while copying";
7937 }
7938 set_dir_cache_file ($dir, $file);
7939 }
7941 if (! maybe_push_required_file (dirname ($fullfile),
7942 $file, $fullfile))
7943 {
7944 if (! $found_it && ! $automake_will_process_aux_dir)
7945 {
7946 # We have added the file but could not push it
7947 # into DIST_COMMON, probably because this is
7948 # an auxiliary file and we are not processing
7949 # the top level Makefile. Furthermore Automake
7950 # hasn't been asked to create the Makefile.in
7951 # that distributes the aux dir files.
7952 error ($where, 'Please make a full run of automake'
7953 . " so $fullfile gets distributed.");
7954 }
7955 }
7956 }
7957 else
7958 {
7959 $trailer = "\n `automake --add-missing' can install `$file'"
7960 if -f "$libdir/$file";
7961 }
7963 # If --force-missing was specified, and we have
7964 # actually found the file, then do nothing.
7965 next
7966 if $found_it && $force_missing;
7968 # If we couldn't install the file, but it is a target in
7969 # the Makefile, don't print anything. This allows files
7970 # like README, AUTHORS, or THANKS to be generated.
7971 next
7972 if !$suppress && rule $file;
7974 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7975 }
7976 }
7977 }
7978 }
7980 # &require_file ($WHERE, $MYSTRICT, @FILES)
7981 # -----------------------------------------
7982 sub require_file ($$@)
7983 {
7984 my ($where, $mystrict, @files) = @_;
7985 require_file_internal ($where, $mystrict, $relative_dir, @files);
7986 }
7988 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7989 # -----------------------------------------------------------
7990 sub require_file_with_macro ($$$@)
7991 {
7992 my ($cond, $macro, $mystrict, @files) = @_;
7993 $macro = rvar ($macro) unless ref $macro;
7994 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7995 }
7997 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7998 # ----------------------------------------------------------------
7999 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
8000 # must be in that directory. Otherwise expect it in the current directory.
8001 sub require_libsource_with_macro ($$$@)
8002 {
8003 my ($cond, $macro, $mystrict, @files) = @_;
8004 $macro = rvar ($macro) unless ref $macro;
8005 if ($config_libobj_dir)
8006 {
8007 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
8008 $config_libobj_dir, @files);
8009 }
8010 else
8011 {
8012 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8013 }
8014 }
8016 # Queue to push require_conf_file requirements to.
8017 my $required_conf_file_queue;
8019 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
8020 # -------------------------------------------------------------------------
8021 sub queue_required_conf_file ($$$$@)
8022 {
8023 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
8024 my @serial_loc;
8025 if (ref $where)
8026 {
8027 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
8028 }
8029 else
8030 {
8031 @serial_loc = (QUEUE_STRING, $where);
8032 }
8033 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
8034 }
8036 # &require_queued_conf_file ($QUEUE)
8037 # ----------------------------------
8038 sub require_queued_conf_file ($)
8039 {
8040 my ($queue) = @_;
8041 my $where;
8042 my $dir = $queue->dequeue ();
8043 my $loc_key = $queue->dequeue ();
8044 if ($loc_key eq QUEUE_LOCATION)
8045 {
8046 $where = Automake::Location::deserialize ($queue);
8047 }
8048 elsif ($loc_key eq QUEUE_STRING)
8049 {
8050 $where = $queue->dequeue ();
8051 }
8052 else
8053 {
8054 prog_error "unexpected key $loc_key";
8055 }
8056 my $mystrict = $queue->dequeue ();
8057 my $nfiles = $queue->dequeue ();
8058 my @files;
8059 push @files, $queue->dequeue ()
8060 foreach (1 .. $nfiles);
8062 # Dequeuing happens outside of per-makefile context, so we have to
8063 # set the variables used by require_file_internal and the functions
8064 # it calls. Gross!
8065 $relative_dir = $dir;
8066 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8067 }
8069 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
8070 # ----------------------------------------------
8071 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
8072 # worker threads may queue up the action to be serialized by the master.
8073 #
8074 # FIXME: this seriously relies on the semantics of require_file_internal
8075 # and maybe_push_required_file, in that we exploit the fact that only the
8076 # contents of the last handled output file may be impacted (which in turn
8077 # is dealt with by the master thread).
8078 sub require_conf_file ($$@)
8079 {
8080 my ($where, $mystrict, @files) = @_;
8081 if (defined $required_conf_file_queue)
8082 {
8083 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
8084 $relative_dir, $where, $mystrict, @files);
8085 }
8086 else
8087 {
8088 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8089 }
8090 }
8093 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8094 # ----------------------------------------------------------------
8095 sub require_conf_file_with_macro ($$$@)
8096 {
8097 my ($cond, $macro, $mystrict, @files) = @_;
8098 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8099 $mystrict, @files);
8100 }
8102 ################################################################
8104 # &require_build_directory ($DIRECTORY)
8105 # -------------------------------------
8106 # Emit rules to create $DIRECTORY if needed, and return
8107 # the file that any target requiring this directory should be made
8108 # dependent upon.
8109 # We don't want to emit the rule twice, and want to reuse it
8110 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8111 sub require_build_directory ($)
8112 {
8113 my $directory = shift;
8115 return $directory_map{$directory} if exists $directory_map{$directory};
8117 my $cdir = File::Spec->canonpath ($directory);
8119 if (exists $directory_map{$cdir})
8120 {
8121 my $stamp = $directory_map{$cdir};
8122 $directory_map{$directory} = $stamp;
8123 return $stamp;
8124 }
8126 my $dirstamp = "$cdir/\$(am__dirstamp)";
8128 $directory_map{$directory} = $dirstamp;
8129 $directory_map{$cdir} = $dirstamp;
8131 # Set a variable for the dirstamp basename.
8132 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8133 '$(am__leading_dot)dirstamp');
8135 # Directory must be removed by `make distclean'.
8136 $clean_files{$dirstamp} = DIST_CLEAN;
8138 $output_rules .= ("$dirstamp:\n"
8139 . "\t\@\$(MKDIR_P) $directory\n"
8140 . "\t\@: > $dirstamp\n");
8142 return $dirstamp;
8143 }
8145 # &require_build_directory_maybe ($FILE)
8146 # --------------------------------------
8147 # If $FILE lies in a subdirectory, emit a rule to create this
8148 # directory and return the file that $FILE should be made
8149 # dependent upon. Otherwise, just return the empty string.
8150 sub require_build_directory_maybe ($)
8151 {
8152 my $file = shift;
8153 my $directory = dirname ($file);
8155 if ($directory ne '.')
8156 {
8157 return require_build_directory ($directory);
8158 }
8159 else
8160 {
8161 return '';
8162 }
8163 }
8165 ################################################################
8167 # Push a list of files onto dist_common.
8168 sub push_dist_common
8169 {
8170 prog_error "push_dist_common run after handle_dist"
8171 if $handle_dist_run;
8172 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8173 '', INTERNAL, VAR_PRETTY);
8174 }
8177 ################################################################
8179 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8180 # ----------------------------------------------
8181 # Generate a Makefile.in given the name of the corresponding Makefile and
8182 # the name of the file output by config.status.
8183 sub generate_makefile ($$)
8184 {
8185 my ($makefile_am, $makefile_in) = @_;
8187 # Reset all the Makefile.am related variables.
8188 initialize_per_input;
8190 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8191 # warnings for this file. So hold any warning issued before
8192 # we have processed AUTOMAKE_OPTIONS.
8193 buffer_messages ('warning');
8195 # Name of input file ("Makefile.am") and output file
8196 # ("Makefile.in"). These have no directory components.
8197 $am_file_name = basename ($makefile_am);
8198 $in_file_name = basename ($makefile_in);
8200 # $OUTPUT is encoded. If it contains a ":" then the first element
8201 # is the real output file, and all remaining elements are input
8202 # files. We don't scan or otherwise deal with these input files,
8203 # other than to mark them as dependencies. See
8204 # &scan_autoconf_files for details.
8205 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8207 $relative_dir = dirname ($makefile);
8208 $am_relative_dir = dirname ($makefile_am);
8209 $topsrcdir = backname ($relative_dir);
8211 read_main_am_file ($makefile_am);
8212 if (handle_options)
8213 {
8214 # Process buffered warnings.
8215 flush_messages;
8216 # Fatal error. Just return, so we can continue with next file.
8217 return;
8218 }
8219 # Process buffered warnings.
8220 flush_messages;
8222 # There are a few install-related variables that you should not define.
8223 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8224 {
8225 my $v = var $var;
8226 if ($v)
8227 {
8228 my $def = $v->def (TRUE);
8229 prog_error "$var not defined in condition TRUE"
8230 unless $def;
8231 reject_var $var, "`$var' should not be defined"
8232 if $def->owner != VAR_AUTOMAKE;
8233 }
8234 }
8236 # Catch some obsolete variables.
8237 msg_var ('obsolete', 'INCLUDES',
8238 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8239 if var ('INCLUDES');
8241 # Must do this after reading .am file.
8242 define_variable ('subdir', $relative_dir, INTERNAL);
8244 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8245 # recursive rules are enabled.
8246 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8247 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8249 # Check first, because we might modify some state.
8250 check_cygnus;
8251 check_gnu_standards;
8252 check_gnits_standards;
8254 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8255 handle_gettext;
8256 handle_libraries;
8257 handle_ltlibraries;
8258 handle_programs;
8259 handle_scripts;
8261 # These must be run after all the sources are scanned. They
8262 # use variables defined by &handle_libraries, &handle_ltlibraries,
8263 # or &handle_programs.
8264 handle_compile;
8265 handle_languages;
8266 handle_libtool;
8268 # Variables used by distdir.am and tags.am.
8269 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8270 if (! option 'no-dist')
8271 {
8272 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8273 }
8275 handle_multilib;
8276 handle_texinfo;
8277 handle_emacs_lisp;
8278 handle_python;
8279 handle_java;
8280 handle_man_pages;
8281 handle_data;
8282 handle_headers;
8283 handle_subdirs;
8284 handle_tags;
8285 handle_minor_options;
8286 # Must come after handle_programs so that %known_programs is up-to-date.
8287 handle_tests;
8289 # This must come after most other rules.
8290 handle_dist;
8292 handle_footer;
8293 do_check_merge_target;
8294 handle_all ($makefile);
8296 # FIXME: Gross!
8297 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8298 {
8299 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8300 }
8301 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8302 {
8303 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8304 }
8306 handle_install;
8307 handle_clean ($makefile);
8308 handle_factored_dependencies;
8310 # Comes last, because all the above procedures may have
8311 # defined or overridden variables.
8312 $output_vars .= output_variables;
8314 check_typos;
8316 my ($out_file) = $output_directory . '/' . $makefile_in;
8318 if ($exit_code != 0)
8319 {
8320 verb "not writing $out_file because of earlier errors";
8321 return;
8322 }
8324 if (! -d ($output_directory . '/' . $am_relative_dir))
8325 {
8326 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8327 }
8329 # We make sure that `all:' is the first target.
8330 my $output =
8331 "$output_vars$output_all$output_header$output_rules$output_trailer";
8333 # Decide whether we must update the output file or not.
8334 # We have to update in the following situations.
8335 # * $force_generation is set.
8336 # * any of the output dependencies is younger than the output
8337 # * the contents of the output is different (this can happen
8338 # if the project has been populated with a file listed in
8339 # @common_files since the last run).
8340 # Output's dependencies are split in two sets:
8341 # * dependencies which are also configure dependencies
8342 # These do not change between each Makefile.am
8343 # * other dependencies, specific to the Makefile.am being processed
8344 # (such as the Makefile.am itself, or any Makefile fragment
8345 # it includes).
8346 my $timestamp = mtime $out_file;
8347 if (! $force_generation
8348 && $configure_deps_greatest_timestamp < $timestamp
8349 && $output_deps_greatest_timestamp < $timestamp
8350 && $output eq contents ($out_file))
8351 {
8352 verb "$out_file unchanged";
8353 # No need to update.
8354 return;
8355 }
8357 if (-e $out_file)
8358 {
8359 unlink ($out_file)
8360 or fatal "cannot remove $out_file: $!\n";
8361 }
8363 my $gm_file = new Automake::XFile "> $out_file";
8364 verb "creating $out_file";
8365 print $gm_file $output;
8366 }
8368 ################################################################
8373 ################################################################
8375 # Helper function for usage().
8376 sub print_autodist_files (@)
8377 {
8378 my @lcomm = sort (&uniq (@_));
8380 my @four;
8381 format USAGE_FORMAT =
8382 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8383 $four[0], $four[1], $four[2], $four[3]
8384 .
8385 local $~ = "USAGE_FORMAT";
8387 my $cols = 4;
8388 my $rows = int(@lcomm / $cols);
8389 my $rest = @lcomm % $cols;
8391 if ($rest)
8392 {
8393 $rows++;
8394 }
8395 else
8396 {
8397 $rest = $cols;
8398 }
8400 for (my $y = 0; $y < $rows; $y++)
8401 {
8402 @four = ("", "", "", "");
8403 for (my $x = 0; $x < $cols; $x++)
8404 {
8405 last if $y + 1 == $rows && $x == $rest;
8407 my $idx = (($x > $rest)
8408 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8409 : ($rows * $x));
8411 $idx += $y;
8412 $four[$x] = $lcomm[$idx];
8413 }
8414 write;
8415 }
8416 }
8419 # Print usage information.
8420 sub usage ()
8421 {
8422 print "Usage: $0 [OPTION] ... [Makefile]...
8424 Generate Makefile.in for configure from Makefile.am.
8426 Operation modes:
8427 --help print this help, then exit
8428 --version print version number, then exit
8429 -v, --verbose verbosely list files processed
8430 --no-force only update Makefile.in's that are out of date
8431 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8433 Dependency tracking:
8434 -i, --ignore-deps disable dependency tracking code
8435 --include-deps enable dependency tracking code
8437 Flavors:
8438 --cygnus assume program is part of Cygnus-style tree
8439 --foreign set strictness to foreign
8440 --gnits set strictness to gnits
8441 --gnu set strictness to gnu
8443 Library files:
8444 -a, --add-missing add missing standard files to package
8445 --libdir=DIR directory storing library files
8446 -c, --copy with -a, copy missing files (default is symlink)
8447 -f, --force-missing force update of standard files
8449 ";
8450 Automake::ChannelDefs::usage;
8452 print "\nFiles automatically distributed if found " .
8453 "(always):\n";
8454 print_autodist_files @common_files;
8455 print "\nFiles automatically distributed if found " .
8456 "(under certain conditions):\n";
8457 print_autodist_files @common_sometimes;
8459 print '
8460 Report bugs to <@PACKAGE_BUGREPORT@>.
8461 GNU Automake home page: <@PACKAGE_URL@>.
8462 General help using GNU software: <http://www.gnu.org/gethelp/>.
8463 ';
8465 # --help always returns 0 per GNU standards.
8466 exit 0;
8467 }
8470 # &version ()
8471 # -----------
8472 # Print version information
8473 sub version ()
8474 {
8475 print <<EOF;
8476 automake (GNU $PACKAGE) $VERSION
8477 Copyright (C) 2011 Free Software Foundation, Inc.
8478 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8479 This is free software: you are free to change and redistribute it.
8480 There is NO WARRANTY, to the extent permitted by law.
8482 Written by Tom Tromey <tromey\@redhat.com>
8483 and Alexandre Duret-Lutz <adl\@gnu.org>.
8484 EOF
8485 # --version always returns 0 per GNU standards.
8486 exit 0;
8487 }
8489 ################################################################
8491 # Parse command line.
8492 sub parse_arguments ()
8493 {
8494 # Start off as gnu.
8495 set_strictness ('gnu');
8497 my $cli_where = new Automake::Location;
8498 my %cli_options =
8499 (
8500 'version' => \&version,
8501 'help' => \&usage,
8502 'libdir=s' => \$libdir,
8503 'gnu' => sub { set_strictness ('gnu'); },
8504 'gnits' => sub { set_strictness ('gnits'); },
8505 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8506 'foreign' => sub { set_strictness ('foreign'); },
8507 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8508 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8509 $cli_where); },
8510 'no-force' => sub { $force_generation = 0; },
8511 'f|force-missing' => \$force_missing,
8512 'o|output-dir=s' => \$output_directory,
8513 'a|add-missing' => \$add_missing,
8514 'c|copy' => \$copy_missing,
8515 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8516 'W|warnings=s' => \&parse_warnings,
8517 # These long options (--Werror and --Wno-error) for backward
8518 # compatibility. Use -Werror and -Wno-error today.
8519 'Werror' => sub { parse_warnings 'W', 'error'; },
8520 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8521 );
8523 use Automake::Getopt ();
8524 Automake::Getopt::parse_options %cli_options;
8526 if (defined $output_directory)
8527 {
8528 msg 'obsolete', "`--output-dir' is deprecated\n";
8529 }
8530 else
8531 {
8532 # In the next release we'll remove this entirely.
8533 $output_directory = '.';
8534 }
8536 return unless @ARGV;
8538 my $errspec = 0;
8539 foreach my $arg (@ARGV)
8540 {
8541 fatal ("empty argument\nTry `$0 --help' for more information.")
8542 if ($arg eq '');
8544 # Handle $local:$input syntax.
8545 my ($local, @rest) = split (/:/, $arg);
8546 @rest = ("$local.in",) unless @rest;
8547 my $input = locate_am @rest;
8548 if ($input)
8549 {
8550 push @input_files, $input;
8551 $output_files{$input} = join (':', ($local, @rest));
8552 }
8553 else
8554 {
8555 error "no Automake input file found for `$arg'";
8556 $errspec = 1;
8557 }
8558 }
8559 fatal "no input file found among supplied arguments"
8560 if $errspec && ! @input_files;
8561 }
8564 # handle_makefile ($MAKEFILE_IN)
8565 # ------------------------------
8566 # Deal with $MAKEFILE_IN.
8567 sub handle_makefile ($)
8568 {
8569 my ($file) = @_;
8570 ($am_file = $file) =~ s/\.in$//;
8571 if (! -f ($am_file . '.am'))
8572 {
8573 error "`$am_file.am' does not exist";
8574 }
8575 else
8576 {
8577 # Any warning setting now local to this Makefile.am.
8578 dup_channel_setup;
8580 generate_makefile ($am_file . '.am', $file);
8582 # Back out any warning setting.
8583 drop_channel_setup;
8584 }
8585 }
8587 # handle_makefiles_serial ()
8588 # --------------------------
8589 # Deal with all makefiles, without threads.
8590 sub handle_makefiles_serial ()
8591 {
8592 foreach my $file (@input_files)
8593 {
8594 handle_makefile ($file);
8595 }
8596 }
8598 # get_number_of_threads ()
8599 # ------------------------
8600 # Logic for deciding how many worker threads to use.
8601 sub get_number_of_threads
8602 {
8603 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8605 $nthreads = 0
8606 unless $nthreads =~ /^[0-9]+$/;
8608 # It doesn't make sense to use more threads than makefiles,
8609 my $max_threads = @input_files;
8611 # but a single worker thread is helpful for exposing bugs.
8612 if ($automake_will_process_aux_dir && $max_threads > 1)
8613 {
8614 $max_threads--;
8615 }
8616 if ($nthreads > $max_threads)
8617 {
8618 $nthreads = $max_threads;
8619 }
8620 return $nthreads;
8621 }
8623 # handle_makefiles_threaded ($NTHREADS)
8624 # -------------------------------------
8625 # Deal with all makefiles, using threads. The general strategy is to
8626 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8627 # worker threads push back everything that needs serialization:
8628 # * warning and (normal) error messages, for stable stderr output
8629 # order and content (avoiding duplicates, for example),
8630 # * races when installing aux files (and respective messages),
8631 # * races when collecting aux files for distribution.
8632 #
8633 # The latter requires that the makefile that deals with the aux dir
8634 # files be handled last, done by the master thread.
8635 sub handle_makefiles_threaded ($)
8636 {
8637 my ($nthreads) = @_;
8639 my @queued_input_files = @input_files;
8640 my $last_input_file = undef;
8641 if ($automake_will_process_aux_dir)
8642 {
8643 $last_input_file = pop @queued_input_files;
8644 }
8646 # The file queue distributes all makefiles, the message queues
8647 # collect all serializations needed for respective files.
8648 my $file_queue = Thread::Queue->new;
8649 my %msg_queues;
8650 foreach my $file (@queued_input_files)
8651 {
8652 $msg_queues{$file} = Thread::Queue->new;
8653 }
8655 verb "spawning $nthreads worker threads";
8656 my @threads = (1 .. $nthreads);
8657 foreach my $t (@threads)
8658 {
8659 $t = threads->new (sub
8660 {
8661 while (my $file = $file_queue->dequeue)
8662 {
8663 verb "handling $file";
8664 my $queue = $msg_queues{$file};
8665 setup_channel_queue ($queue, QUEUE_MESSAGE);
8666 $required_conf_file_queue = $queue;
8667 handle_makefile ($file);
8668 $queue->enqueue (undef);
8669 setup_channel_queue (undef, undef);
8670 $required_conf_file_queue = undef;
8671 }
8672 return $exit_code;
8673 });
8674 }
8676 # Queue all normal makefiles.
8677 verb "queuing " . @queued_input_files . " input files";
8678 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8680 # Collect and process serializations.
8681 foreach my $file (@queued_input_files)
8682 {
8683 verb "dequeuing messages for " . $file;
8684 reset_local_duplicates ();
8685 my $queue = $msg_queues{$file};
8686 while (my $key = $queue->dequeue)
8687 {
8688 if ($key eq QUEUE_MESSAGE)
8689 {
8690 pop_channel_queue ($queue);
8691 }
8692 elsif ($key eq QUEUE_CONF_FILE)
8693 {
8694 require_queued_conf_file ($queue);
8695 }
8696 else
8697 {
8698 prog_error "unexpected key $key";
8699 }
8700 }
8701 }
8703 foreach my $t (@threads)
8704 {
8705 my @exit_thread = $t->join;
8706 $exit_code = $exit_thread[0]
8707 if ($exit_thread[0] > $exit_code);
8708 }
8710 # The master processes the last file.
8711 if ($automake_will_process_aux_dir)
8712 {
8713 verb "processing last input file";
8714 handle_makefile ($last_input_file);
8715 }
8716 }
8718 ################################################################
8720 # Parse the WARNINGS environment variable.
8721 parse_WARNINGS;
8723 # Parse command line.
8724 parse_arguments;
8726 $configure_ac = require_configure_ac;
8728 # Do configure.ac scan only once.
8729 scan_autoconf_files;
8731 if (! @input_files)
8732 {
8733 my $msg = '';
8734 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8735 if -f 'Makefile.am';
8736 fatal ("no `Makefile.am' found for any configure output$msg");
8737 }
8739 my $nthreads = get_number_of_threads ();
8741 if ($perl_threads && $nthreads >= 1)
8742 {
8743 handle_makefiles_threaded ($nthreads);
8744 }
8745 else
8746 {
8747 handle_makefiles_serial ();
8748 }
8750 exit $exit_code;
8753 ### Setup "GNU" style for perl-mode and cperl-mode.
8754 ## Local Variables:
8755 ## perl-indent-level: 2
8756 ## perl-continued-statement-offset: 2
8757 ## perl-continued-brace-offset: 0
8758 ## perl-brace-offset: 0
8759 ## perl-brace-imaginary-offset: 0
8760 ## perl-label-offset: -2
8761 ## cperl-indent-level: 2
8762 ## cperl-brace-offset: 0
8763 ## cperl-continued-brace-offset: 0
8764 ## cperl-label-offset: -2
8765 ## cperl-extra-newline-before-brace: t
8766 ## cperl-merge-trailing-else: nil
8767 ## cperl-continued-statement-offset: 2
8768 ## End: