| blob | 4656032b58f7862d1a1cdb4bce1e52fac77a3e57 |
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 Free Software Foundation,
11 # 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 3, 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 $ENV{'DJGPP'};
45 }
47 use Automake::Struct;
48 struct (# Short name of the language (c, f77...).
49 'name' => "\$",
50 # Nice name of the language (C, Fortran 77...).
51 'Name' => "\$",
53 # List of configure variables which must be defined.
54 'config_vars' => '@',
56 'ansi' => "\$",
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
60 'pure' => "\$",
62 'autodep' => "\$",
64 # Name of the compiling variable (COMPILE).
65 'compiler' => "\$",
66 # Content of the compiling variable.
67 'compile' => "\$",
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
70 'extensions' => '@',
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(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 dvi exec html include info
253 lib libexec lisp localstate man man1 man2 man3
254 man4 man5 man6 man7 man8 man9 oldinclude pdf
255 pkgdatadir pkgincludedir pkglibdir pkglibexecdir
256 ps sbin 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 Free Software Foundation,
262 # 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' => ['VALAFLAGS'],
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) $(YFLAGS) $(AM_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) $(YFLAGS) $(AM_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) $(LFLAGS) $(AM_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) $(LFLAGS) $(AM_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 if (option 'silent-rules')
1162 {
1163 # Using `$V' instead of `$(V)' breaks IRIX make.
1164 define_variable ($var, '$(' . $pvar . '_$(V))', INTERNAL);
1165 define_variable ($pvar . '_', '$(' . $pvar . '_$(AM_DEFAULT_VERBOSITY))', INTERNAL);
1166 define_variable ($pvar . '_0', $val, INTERNAL);
1167 }
1168 }
1170 # Above should not be needed in the general automake code.
1172 # verbose_flag (NAME)
1173 # -------------------
1174 # Contents of %VERBOSE%: variable to expand before rule command.
1175 sub verbose_flag ($)
1176 {
1177 my ($name) = @_;
1178 return '$(' . verbose_var ($name) . ')'
1179 if (option 'silent-rules');
1180 return '';
1181 }
1183 # silent_flag
1184 # -----------
1185 # Contents of %SILENT%: variable to expand to `@' when silent.
1186 sub silent_flag ()
1187 {
1188 return verbose_flag ('at');
1189 }
1191 # define_verbose_tagvar (NAME)
1192 # ----------------------------
1193 # Engage the needed `silent-rules' machinery for tag NAME.
1194 sub define_verbose_tagvar ($)
1195 {
1196 my ($name) = @_;
1197 if (option 'silent-rules')
1198 {
1199 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1200 define_verbose_var ('at', '@');
1201 }
1202 }
1204 # define_verbose_libtool
1205 # ----------------------
1206 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1207 sub define_verbose_libtool ()
1208 {
1209 define_verbose_var ('lt', '--silent');
1210 return verbose_flag ('lt');
1211 }
1214 ################################################################
1217 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1218 sub handle_options
1219 {
1220 my $var = var ('AUTOMAKE_OPTIONS');
1221 if ($var)
1222 {
1223 if ($var->has_conditional_contents)
1224 {
1225 msg_var ('unsupported', $var,
1226 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1227 }
1228 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1229 location => 1))
1230 {
1231 my ($loc, $value) = @$locvals;
1232 return 1 if (process_option_list ($loc, $value))
1233 }
1234 }
1236 # Override portability-recursive warning.
1237 switch_warning ('no-portability-recursive')
1238 if option 'silent-rules';
1240 if ($strictness == GNITS)
1241 {
1242 set_option ('readme-alpha', INTERNAL);
1243 set_option ('std-options', INTERNAL);
1244 set_option ('check-news', INTERNAL);
1245 }
1247 return 0;
1248 }
1250 # shadow_unconditionally ($varname, $where)
1251 # -----------------------------------------
1252 # Return a $(variable) that contains all possible values
1253 # $varname can take.
1254 # If the VAR wasn't defined conditionally, return $(VAR).
1255 # Otherwise we create a am__VAR_DIST variable which contains
1256 # all possible values, and return $(am__VAR_DIST).
1257 sub shadow_unconditionally ($$)
1258 {
1259 my ($varname, $where) = @_;
1260 my $var = var $varname;
1261 if ($var->has_conditional_contents)
1262 {
1263 $varname = "am__${varname}_DIST";
1264 my @files = uniq ($var->value_as_list_recursive);
1265 define_pretty_variable ($varname, TRUE, $where, @files);
1266 }
1267 return "\$($varname)"
1268 }
1270 # get_object_extension ($EXTENSION)
1271 # ---------------------------------
1272 # Prefix $EXTENSION with $U if ansi2knr is in use.
1273 sub get_object_extension ($)
1274 {
1275 my ($extension) = @_;
1277 # Check for automatic de-ANSI-fication.
1278 $extension = '$U' . $extension
1279 if option 'ansi2knr';
1281 $get_object_extension_was_run = 1;
1283 return $extension;
1284 }
1286 # check_user_variables (@LIST)
1287 # ----------------------------
1288 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1289 # otherwise.
1290 sub check_user_variables (@)
1291 {
1292 my @dont_override = @_;
1293 foreach my $flag (@dont_override)
1294 {
1295 my $var = var $flag;
1296 if ($var)
1297 {
1298 for my $cond ($var->conditions->conds)
1299 {
1300 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1301 {
1302 msg_cond_var ('gnu', $cond, $flag,
1303 "`$flag' is a user variable, "
1304 . "you should not override it;\n"
1305 . "use `AM_$flag' instead.");
1306 }
1307 }
1308 }
1309 }
1310 }
1312 # Call finish function for each language that was used.
1313 sub handle_languages
1314 {
1315 if (! option 'no-dependencies')
1316 {
1317 # Include auto-dep code. Don't include it if DEP_FILES would
1318 # be empty.
1319 if (&saw_sources_p (0) && keys %dep_files)
1320 {
1321 # Set location of depcomp.
1322 &define_variable ('depcomp',
1323 "\$(SHELL) $am_config_aux_dir/depcomp",
1324 INTERNAL);
1325 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1327 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1329 my @deplist = sort keys %dep_files;
1330 # Generate each `include' individually. Irix 6 make will
1331 # not properly include several files resulting from a
1332 # variable expansion; generating many separate includes
1333 # seems safest.
1334 $output_rules .= "\n";
1335 foreach my $iter (@deplist)
1336 {
1337 $output_rules .= (subst ('AMDEP_TRUE')
1338 . subst ('am__include')
1339 . ' '
1340 . subst ('am__quote')
1341 . $iter
1342 . subst ('am__quote')
1343 . "\n");
1344 }
1346 # Compute the set of directories to remove in distclean-depend.
1347 my @depdirs = uniq (map { dirname ($_) } @deplist);
1348 $output_rules .= &file_contents ('depend',
1349 new Automake::Location,
1350 DEPDIRS => "@depdirs");
1351 }
1352 }
1353 else
1354 {
1355 &define_variable ('depcomp', '', INTERNAL);
1356 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1357 }
1359 my %done;
1361 # Is the c linker needed?
1362 my $needs_c = 0;
1363 foreach my $ext (sort keys %extension_seen)
1364 {
1365 next unless $extension_map{$ext};
1367 my $lang = $languages{$extension_map{$ext}};
1369 my $rule_file = $lang->rule_file || 'depend2';
1371 # Get information on $LANG.
1372 my $pfx = $lang->autodep;
1373 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1375 my ($AMDEP, $FASTDEP) =
1376 (option 'no-dependencies' || $lang->autodep eq 'no')
1377 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1379 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1380 my $silent = silent_flag ();
1382 my %transform = ('EXT' => $ext,
1383 'PFX' => $pfx,
1384 'FPFX' => $fpfx,
1385 'AMDEP' => $AMDEP,
1386 'FASTDEP' => $FASTDEP,
1387 '-c' => $lang->compile_flag || '',
1388 # These are not used, but they need to be defined
1389 # so &transform do not complain.
1390 SUBDIROBJ => 0,
1391 'DERIVED-EXT' => 'BUG',
1392 DIST_SOURCE => 1,
1393 VERBOSE => $verbose,
1394 SILENT => $silent,
1395 );
1397 # Generate the appropriate rules for this extension.
1398 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1399 || defined $lang->compile)
1400 {
1401 # Some C compilers don't support -c -o. Use it only if really
1402 # needed.
1403 my $output_flag = $lang->output_flag || '';
1404 $output_flag = '-o'
1405 if (! $output_flag
1406 && $lang->name eq 'c'
1407 && option 'subdir-objects');
1409 # Compute a possible derived extension.
1410 # This is not used by depend2.am.
1411 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1413 # When we output an inference rule like `.c.o:' we
1414 # have two cases to consider: either subdir-objects
1415 # is used, or it is not.
1416 #
1417 # In the latter case the rule is used to build objects
1418 # in the current directory, and dependencies always
1419 # go into `./$(DEPDIR)/'. We can hard-code this value.
1420 #
1421 # In the former case the rule can be used to build
1422 # objects in sub-directories too. Dependencies should
1423 # go into the appropriate sub-directories, e.g.,
1424 # `sub/$(DEPDIR)/'. The value of this directory
1425 # needs to be computed on-the-fly.
1426 #
1427 # DEPBASE holds the name of this directory, plus the
1428 # basename part of the object file (extensions Po, TPo,
1429 # Plo, TPlo will be added later as appropriate). It is
1430 # either hardcoded, or a shell variable (`$depbase') that
1431 # will be computed by the rule.
1432 my $depbase =
1433 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1434 $output_rules .=
1435 file_contents ($rule_file,
1436 new Automake::Location,
1437 %transform,
1438 GENERIC => 1,
1440 'DERIVED-EXT' => $der_ext,
1442 DEPBASE => $depbase,
1443 BASE => '$*',
1444 SOURCE => '$<',
1445 SOURCEFLAG => $sourceflags{$ext} || '',
1446 OBJ => '$@',
1447 OBJOBJ => '$@',
1448 LTOBJ => '$@',
1450 COMPILE => '$(' . $lang->compiler . ')',
1451 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1452 -o => $output_flag,
1453 SUBDIROBJ => !! option 'subdir-objects');
1454 }
1456 # Now include code for each specially handled object with this
1457 # language.
1458 my %seen_files = ();
1459 foreach my $file (@{$lang_specific_files{$lang->name}})
1460 {
1461 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1463 # We might see a given object twice, for instance if it is
1464 # used under different conditions.
1465 next if defined $seen_files{$obj};
1466 $seen_files{$obj} = 1;
1468 prog_error ("found " . $lang->name .
1469 " in handle_languages, but compiler not defined")
1470 unless defined $lang->compile;
1472 my $obj_compile = $lang->compile;
1474 # Rewrite each occurrence of `AM_$flag' in the compile
1475 # rule into `${derived}_$flag' if it exists.
1476 for my $flag (@{$lang->flags})
1477 {
1478 my $val = "${derived}_$flag";
1479 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1480 if set_seen ($val);
1481 }
1483 my $libtool_tag = '';
1484 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1485 {
1486 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1487 }
1489 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1490 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1492 my $ltverbose = define_verbose_libtool ();
1493 my $obj_ltcompile =
1494 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1495 . "--mode=compile $obj_compile";
1497 # We _need_ `-o' for per object rules.
1498 my $output_flag = $lang->output_flag || '-o';
1500 my $depbase = dirname ($obj);
1501 $depbase = ''
1502 if $depbase eq '.';
1503 $depbase .= '/'
1504 unless $depbase eq '';
1505 $depbase .= '$(DEPDIR)/' . basename ($obj);
1507 # Support for deansified files in subdirectories is ugly
1508 # enough to deserve an explanation.
1509 #
1510 # A Note about normal ansi2knr processing first. On
1511 #
1512 # AUTOMAKE_OPTIONS = ansi2knr
1513 # bin_PROGRAMS = foo
1514 # foo_SOURCES = foo.c
1515 #
1516 # we generate rules similar to:
1517 #
1518 # foo: foo$U.o; link ...
1519 # foo$U.o: foo$U.c; compile ...
1520 # foo_.c: foo.c; ansi2knr ...
1521 #
1522 # this is fairly compact, and will call ansi2knr depending
1523 # on the value of $U (`' or `_').
1524 #
1525 # It's harder with subdir sources. On
1526 #
1527 # AUTOMAKE_OPTIONS = ansi2knr
1528 # bin_PROGRAMS = foo
1529 # foo_SOURCES = sub/foo.c
1530 #
1531 # we have to create foo_.c in the current directory.
1532 # (Unless the user asks 'subdir-objects'.) This is important
1533 # in case the same file (`foo.c') is compiled from other
1534 # directories with different cpp options: foo_.c would
1535 # be preprocessed for only one set of options if it were
1536 # put in the subdirectory.
1537 #
1538 # Because foo$U.o must be built from either foo_.c or
1539 # sub/foo.c we can't be as concise as in the first example.
1540 # Instead we output
1541 #
1542 # foo: foo$U.o; link ...
1543 # foo_.o: foo_.c; compile ...
1544 # foo.o: sub/foo.c; compile ...
1545 # foo_.c: foo.c; ansi2knr ...
1546 #
1547 # This is why we'll now transform $rule_file twice
1548 # if we detect this case.
1549 # A first time we output the compile rule with `$U'
1550 # replaced by `_' and the source directory removed,
1551 # and another time we simply remove `$U'.
1552 #
1553 # Note that at this point $source (as computed by
1554 # &handle_single_transform) is `sub/foo$U.c'.
1555 # This can be confusing: it can be used as-is when
1556 # subdir-objects is set, otherwise you have to know
1557 # it really means `foo_.c' or `sub/foo.c'.
1558 my $objdir = dirname ($obj);
1559 my $srcdir = dirname ($source);
1560 if ($lang->ansi && $obj =~ /\$U/)
1561 {
1562 prog_error "`$obj' contains \$U, but `$source' doesn't."
1563 if $source !~ /\$U/;
1565 (my $source_ = $source) =~ s/\$U/_/g;
1566 # Output an additional rule if _.c and .c are not in
1567 # the same directory. (_.c is always in $objdir.)
1568 if ($objdir ne $srcdir)
1569 {
1570 (my $obj_ = $obj) =~ s/\$U/_/g;
1571 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1572 $source_ = basename ($source_);
1574 $output_rules .=
1575 file_contents ($rule_file,
1576 new Automake::Location,
1577 %transform,
1578 GENERIC => 0,
1580 DEPBASE => $depbase_,
1581 BASE => $obj_,
1582 SOURCE => $source_,
1583 SOURCEFLAG => $sourceflags{$srcext} || '',
1584 OBJ => "$obj_$myext",
1585 OBJOBJ => "$obj_.obj",
1586 LTOBJ => "$obj_.lo",
1588 COMPILE => $obj_compile,
1589 LTCOMPILE => $obj_ltcompile,
1590 -o => $output_flag,
1591 %file_transform);
1592 $obj =~ s/\$U//g;
1593 $depbase =~ s/\$U//g;
1594 $source =~ s/\$U//g;
1595 }
1596 }
1598 $output_rules .=
1599 file_contents ($rule_file,
1600 new Automake::Location,
1601 %transform,
1602 GENERIC => 0,
1604 DEPBASE => $depbase,
1605 BASE => $obj,
1606 SOURCE => $source,
1607 SOURCEFLAG => $sourceflags{$srcext} || '',
1608 # Use $myext and not `.o' here, in case
1609 # we are actually building a new source
1610 # file -- e.g. via yacc.
1611 OBJ => "$obj$myext",
1612 OBJOBJ => "$obj.obj",
1613 LTOBJ => "$obj.lo",
1615 VERBOSE => $verbose,
1616 SILENT => $silent,
1617 COMPILE => $obj_compile,
1618 LTCOMPILE => $obj_ltcompile,
1619 -o => $output_flag,
1620 %file_transform);
1621 }
1623 # The rest of the loop is done once per language.
1624 next if defined $done{$lang};
1625 $done{$lang} = 1;
1627 # Load the language dependent Makefile chunks.
1628 my %lang = map { uc ($_) => 0 } keys %languages;
1629 $lang{uc ($lang->name)} = 1;
1630 $output_rules .= file_contents ('lang-compile',
1631 new Automake::Location,
1632 %transform, %lang);
1634 # If the source to a program consists entirely of code from a
1635 # `pure' language, for instance C++ or Fortran 77, then we
1636 # don't need the C compiler code. However if we run into
1637 # something unusual then we do generate the C code. There are
1638 # probably corner cases here that do not work properly.
1639 # People linking Java code to Fortran code deserve pain.
1640 $needs_c ||= ! $lang->pure;
1642 define_compiler_variable ($lang)
1643 if ($lang->compile);
1645 define_linker_variable ($lang)
1646 if ($lang->link);
1648 require_variables ("$am_file.am", $lang->Name . " source seen",
1649 TRUE, @{$lang->config_vars});
1651 # Call the finisher.
1652 $lang->finish;
1654 # Flags listed in `->flags' are user variables (per GNU Standards),
1655 # they should not be overridden in the Makefile...
1656 my @dont_override = @{$lang->flags};
1657 # ... and so is LDFLAGS.
1658 push @dont_override, 'LDFLAGS' if $lang->link;
1660 check_user_variables @dont_override;
1661 }
1663 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1664 # suffix rule was learned), don't bother with the C stuff. But if
1665 # anything else creeps in, then use it.
1666 $needs_c = 1
1667 if $need_link || suffix_rules_count > 1;
1669 if ($needs_c)
1670 {
1671 &define_compiler_variable ($languages{'c'})
1672 unless defined $done{$languages{'c'}};
1673 define_linker_variable ($languages{'c'});
1674 }
1676 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1677 define_verbose_tagvar ('GEN');
1678 }
1681 # append_exeext { PREDICATE } $MACRO
1682 # ----------------------------------
1683 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1684 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1685 # ignored.
1686 #
1687 # This is typically used on all filenames of *_PROGRAMS, and filenames
1688 # of TESTS that are programs.
1689 sub append_exeext (&$)
1690 {
1691 my ($pred, $macro) = @_;
1693 transform_variable_recursively
1694 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1695 sub {
1696 my ($subvar, $val, $cond, $full_cond) = @_;
1697 # Append $(EXEEXT) unless the user did it already, or it's a
1698 # @substitution@.
1699 $val .= '$(EXEEXT)'
1700 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1701 return $val;
1702 });
1703 }
1706 # Check to make sure a source defined in LIBOBJS is not explicitly
1707 # mentioned. This is a separate function (as opposed to being inlined
1708 # in handle_source_transform) because it isn't always appropriate to
1709 # do this check.
1710 sub check_libobjs_sources
1711 {
1712 my ($one_file, $unxformed) = @_;
1714 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1715 'dist_EXTRA_', 'nodist_EXTRA_')
1716 {
1717 my @files;
1718 my $varname = $prefix . $one_file . '_SOURCES';
1719 my $var = var ($varname);
1720 if ($var)
1721 {
1722 @files = $var->value_as_list_recursive;
1723 }
1724 elsif ($prefix eq '')
1725 {
1726 @files = ($unxformed . '.c');
1727 }
1728 else
1729 {
1730 next;
1731 }
1733 foreach my $file (@files)
1734 {
1735 err_var ($prefix . $one_file . '_SOURCES',
1736 "automatically discovered file `$file' should not" .
1737 " be explicitly mentioned")
1738 if defined $libsources{$file};
1739 }
1740 }
1741 }
1744 # @OBJECTS
1745 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1746 # -----------------------------------------------------------------------------
1747 # Does much of the actual work for handle_source_transform.
1748 # Arguments are:
1749 # $VAR is the name of the variable that the source filenames come from
1750 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1751 # $DERIVED is the name of resulting executable or library
1752 # $OBJ is the object extension (e.g., `$U.lo')
1753 # $FILE the source file to transform
1754 # %TRANSFORM contains extras arguments to pass to file_contents
1755 # when producing explicit rules
1756 # Result is a list of the names of objects
1757 # %linkers_used will be updated with any linkers needed
1758 sub handle_single_transform ($$$$$%)
1759 {
1760 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1761 my @files = ($_file);
1762 my @result = ();
1763 my $nonansi_obj = $obj;
1764 $nonansi_obj =~ s/\$U//g;
1766 # Turn sources into objects. We use a while loop like this
1767 # because we might add to @files in the loop.
1768 while (scalar @files > 0)
1769 {
1770 $_ = shift @files;
1772 # Configure substitutions in _SOURCES variables are errors.
1773 if (/^\@.*\@$/)
1774 {
1775 my $parent_msg = '';
1776 $parent_msg = "\nand is referred to from `$topparent'"
1777 if $topparent ne $var->name;
1778 err_var ($var,
1779 "`" . $var->name . "' includes configure substitution `$_'"
1780 . $parent_msg . ";\nconfigure " .
1781 "substitutions are not allowed in _SOURCES variables");
1782 next;
1783 }
1785 # If the source file is in a subdirectory then the `.o' is put
1786 # into the current directory, unless the subdir-objects option
1787 # is in effect.
1789 # Split file name into base and extension.
1790 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1791 my $full = $_;
1792 my $directory = $1 || '';
1793 my $base = $2;
1794 my $extension = $3;
1796 # We must generate a rule for the object if it requires its own flags.
1797 my $renamed = 0;
1798 my ($linker, $object);
1800 # This records whether we've seen a derived source file (e.g.
1801 # yacc output).
1802 my $derived_source = 0;
1804 # This holds the `aggregate context' of the file we are
1805 # currently examining. If the file is compiled with
1806 # per-object flags, then it will be the name of the object.
1807 # Otherwise it will be `AM'. This is used by the target hook
1808 # language function.
1809 my $aggregate = 'AM';
1811 $extension = &derive_suffix ($extension, $nonansi_obj);
1812 my $lang;
1813 if ($extension_map{$extension} &&
1814 ($lang = $languages{$extension_map{$extension}}))
1815 {
1816 # Found the language, so see what it says.
1817 &saw_extension ($extension);
1819 # Do we have per-executable flags for this executable?
1820 my $have_per_exec_flags = 0;
1821 my @peflags = @{$lang->flags};
1822 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1823 foreach my $flag (@peflags)
1824 {
1825 if (set_seen ("${derived}_$flag"))
1826 {
1827 $have_per_exec_flags = 1;
1828 last;
1829 }
1830 }
1832 # Note: computed subr call. The language rewrite function
1833 # should return one of the LANG_* constants. It could
1834 # also return a list whose first value is such a constant
1835 # and whose second value is a new source extension which
1836 # should be applied. This means this particular language
1837 # generates another source file which we must then process
1838 # further.
1839 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1840 my ($r, $source_extension)
1841 = &$subr ($directory, $base, $extension,
1842 $nonansi_obj, $have_per_exec_flags, $var);
1843 # Skip this entry if we were asked not to process it.
1844 next if $r == LANG_IGNORE;
1846 # Now extract linker and other info.
1847 $linker = $lang->linker;
1849 my $this_obj_ext;
1850 if (defined $source_extension)
1851 {
1852 $this_obj_ext = $source_extension;
1853 $derived_source = 1;
1854 }
1855 elsif ($lang->ansi)
1856 {
1857 $this_obj_ext = $obj;
1858 }
1859 else
1860 {
1861 $this_obj_ext = $nonansi_obj;
1862 }
1863 $object = $base . $this_obj_ext;
1865 if ($have_per_exec_flags)
1866 {
1867 # We have a per-executable flag in effect for this
1868 # object. In this case we rewrite the object's
1869 # name to ensure it is unique.
1871 # We choose the name `DERIVED_OBJECT' to ensure
1872 # (1) uniqueness, and (2) continuity between
1873 # invocations. However, this will result in a
1874 # name that is too long for losing systems, in
1875 # some situations. So we provide _SHORTNAME to
1876 # override.
1878 my $dname = $derived;
1879 my $var = var ($derived . '_SHORTNAME');
1880 if ($var)
1881 {
1882 # FIXME: should use the same Condition as
1883 # the _SOURCES variable. But this is really
1884 # silly overkill -- nobody should have
1885 # conditional shortnames.
1886 $dname = $var->variable_value;
1887 }
1888 $object = $dname . '-' . $object;
1890 prog_error ($lang->name . " flags defined without compiler")
1891 if ! defined $lang->compile;
1893 $renamed = 1;
1894 }
1896 # If rewrite said it was ok, put the object into a
1897 # subdir.
1898 if ($r == LANG_SUBDIR && $directory ne '')
1899 {
1900 $object = $directory . '/' . $object;
1901 }
1903 # If the object file has been renamed (because per-target
1904 # flags are used) we cannot compile the file with an
1905 # inference rule: we need an explicit rule.
1906 #
1907 # If the source is in a subdirectory and the object is in
1908 # the current directory, we also need an explicit rule.
1909 #
1910 # If both source and object files are in a subdirectory
1911 # (this happens when the subdir-objects option is used),
1912 # then the inference will work.
1913 #
1914 # The latter case deserves a historical note. When the
1915 # subdir-objects option was added on 1999-04-11 it was
1916 # thought that inferences rules would work for
1917 # subdirectory objects too. Later, on 1999-11-22,
1918 # automake was changed to output explicit rules even for
1919 # subdir-objects. Nobody remembers why, but this occurred
1920 # soon after the merge of the user-dep-gen-branch so it
1921 # might be related. In late 2003 people complained about
1922 # the size of the generated Makefile.ins (libgcj, with
1923 # 2200+ subdir objects was reported to have a 9MB
1924 # Makefile), so we now rely on inference rules again.
1925 # Maybe we'll run across the same issue as in the past,
1926 # but at least this time we can document it. However since
1927 # dependency tracking has evolved it is possible that
1928 # our old problem no longer exists.
1929 # Using inference rules for subdir-objects has been tested
1930 # with GNU make, Solaris make, Ultrix make, BSD make,
1931 # HP-UX make, and OSF1 make successfully.
1932 if ($renamed
1933 || ($directory ne '' && ! option 'subdir-objects')
1934 # We must also use specific rules for a nodist_ source
1935 # if its language requests it.
1936 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1937 {
1938 my $obj_sans_ext = substr ($object, 0,
1939 - length ($this_obj_ext));
1940 my $full_ansi;
1941 if ($directory ne '')
1942 {
1943 $full_ansi = $directory . '/' . $base . $extension;
1944 }
1945 else
1946 {
1947 $full_ansi = $base . $extension;
1948 }
1950 if ($lang->ansi && option 'ansi2knr')
1951 {
1952 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1953 $obj_sans_ext .= '$U';
1954 }
1956 my @specifics = ($full_ansi, $obj_sans_ext,
1957 # Only use $this_obj_ext in the derived
1958 # source case because in the other case we
1959 # *don't* want $(OBJEXT) to appear here.
1960 ($derived_source ? $this_obj_ext : '.o'),
1961 $extension);
1963 # If we renamed the object then we want to use the
1964 # per-executable flag name. But if this is simply a
1965 # subdir build then we still want to use the AM_ flag
1966 # name.
1967 if ($renamed)
1968 {
1969 unshift @specifics, $derived;
1970 $aggregate = $derived;
1971 }
1972 else
1973 {
1974 unshift @specifics, 'AM';
1975 }
1977 # Each item on this list is a reference to a list consisting
1978 # of four values followed by additional transform flags for
1979 # file_contents. The four values are the derived flag prefix
1980 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1981 # source file, the base name of the output file, and
1982 # the extension for the object file.
1983 push (@{$lang_specific_files{$lang->name}},
1984 [@specifics, %transform]);
1985 }
1986 }
1987 elsif ($extension eq $nonansi_obj)
1988 {
1989 # This is probably the result of a direct suffix rule.
1990 # In this case we just accept the rewrite.
1991 $object = "$base$extension";
1992 $object = "$directory/$object" if $directory ne '';
1993 $linker = '';
1994 }
1995 else
1996 {
1997 # No error message here. Used to have one, but it was
1998 # very unpopular.
1999 # FIXME: we could potentially do more processing here,
2000 # perhaps treating the new extension as though it were a
2001 # new source extension (as above). This would require
2002 # more restructuring than is appropriate right now.
2003 next;
2004 }
2006 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2007 if (defined $object_map{$object}
2008 && $object_map{$object} ne $full);
2010 my $comp_val = (($object =~ /\.lo$/)
2011 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2012 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2013 if (defined $object_compilation_map{$comp_obj}
2014 && $object_compilation_map{$comp_obj} != 0
2015 # Only see the error once.
2016 && ($object_compilation_map{$comp_obj}
2017 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2018 && $object_compilation_map{$comp_obj} != $comp_val)
2019 {
2020 err_am "object `$comp_obj' created both with libtool and without";
2021 }
2022 $object_compilation_map{$comp_obj} |= $comp_val;
2024 if (defined $lang)
2025 {
2026 # Let the language do some special magic if required.
2027 $lang->target_hook ($aggregate, $object, $full, %transform);
2028 }
2030 if ($derived_source)
2031 {
2032 prog_error ($lang->name . " has automatic dependency tracking")
2033 if $lang->autodep ne 'no';
2034 # Make sure this new source file is handled next. That will
2035 # make it appear to be at the right place in the list.
2036 unshift (@files, $object);
2037 # Distribute derived sources unless the source they are
2038 # derived from is not.
2039 &push_dist_common ($object)
2040 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2041 next;
2042 }
2044 $linkers_used{$linker} = 1;
2046 push (@result, $object);
2048 if (! defined $object_map{$object})
2049 {
2050 my @dep_list = ();
2051 $object_map{$object} = $full;
2053 # If resulting object is in subdir, we need to make
2054 # sure the subdir exists at build time.
2055 if ($object =~ /\//)
2056 {
2057 # FIXME: check that $DIRECTORY is somewhere in the
2058 # project
2060 # For Java, the way we're handling it right now, a
2061 # `..' component doesn't make sense.
2062 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2063 {
2064 err_am "`$full' should not contain a `..' component";
2065 }
2067 # Make sure object is removed by `make mostlyclean'.
2068 $compile_clean_files{$object} = MOSTLY_CLEAN;
2069 # If we have a libtool object then we also must remove
2070 # the ordinary .o.
2071 if ($object =~ /\.lo$/)
2072 {
2073 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2074 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2076 # Remove any libtool object in this directory.
2077 $libtool_clean_directories{$directory} = 1;
2078 }
2080 push (@dep_list, require_build_directory ($directory));
2082 # If we're generating dependencies, we also want
2083 # to make sure that the appropriate subdir of the
2084 # .deps directory is created.
2085 push (@dep_list,
2086 require_build_directory ($directory . '/$(DEPDIR)'))
2087 unless option 'no-dependencies';
2088 }
2090 &pretty_print_rule ($object . ':', "\t", @dep_list)
2091 if scalar @dep_list > 0;
2092 }
2094 # Transform .o or $o file into .P file (for automatic
2095 # dependency code).
2096 if ($lang && $lang->autodep ne 'no')
2097 {
2098 my $depfile = $object;
2099 $depfile =~ s/\.([^.]*)$/.P$1/;
2100 $depfile =~ s/\$\(OBJEXT\)$/o/;
2101 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
2102 . basename ($depfile)} = 1;
2103 }
2104 }
2106 return @result;
2107 }
2110 # $LINKER
2111 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2112 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2113 # ---------------------------------------------------------------------------
2114 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2115 #
2116 # Arguments are:
2117 # $VAR is the name of the _SOURCES variable
2118 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2119 # it will be generated and returned).
2120 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2121 # work done to determine the linker will be).
2122 # $ONE_FILE is the canonical (transformed) name of object to build
2123 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2124 # $TOPPARENT is the _SOURCES variable being processed.
2125 # $WHERE context into which this definition is done
2126 # %TRANSFORM extra arguments to pass to file_contents when producing
2127 # rules
2128 #
2129 # Result is a pair ($LINKER, $OBJVAR):
2130 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2131 sub define_objects_from_sources ($$$$$$$%)
2132 {
2133 my ($var, $objvar, $nodefine, $one_file,
2134 $obj, $topparent, $where, %transform) = @_;
2136 my $needlinker = "";
2138 transform_variable_recursively
2139 ($var, $objvar, 'am__objects', $nodefine, $where,
2140 # The transform code to run on each filename.
2141 sub {
2142 my ($subvar, $val, $cond, $full_cond) = @_;
2143 my @trans = handle_single_transform ($subvar, $topparent,
2144 $one_file, $obj, $val,
2145 %transform);
2146 $needlinker = "true" if @trans;
2147 return @trans;
2148 });
2150 return $needlinker;
2151 }
2154 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2155 # -----------------------------------------------------------------------------
2156 # Handle SOURCE->OBJECT transform for one program or library.
2157 # Arguments are:
2158 # canonical (transformed) name of target to build
2159 # actual target of object to build
2160 # object extension (i.e., either `.o' or `$o')
2161 # location of the source variable
2162 # extra arguments to pass to file_contents when producing rules
2163 # Return the name of the linker variable that must be used.
2164 # Empty return means just use `LINK'.
2165 sub handle_source_transform ($$$$%)
2166 {
2167 # one_file is canonical name. unxformed is given name. obj is
2168 # object extension.
2169 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2171 my $linker = '';
2173 # No point in continuing if _OBJECTS is defined.
2174 return if reject_var ($one_file . '_OBJECTS',
2175 $one_file . '_OBJECTS should not be defined');
2177 my %used_pfx = ();
2178 my $needlinker;
2179 %linkers_used = ();
2180 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2181 'dist_EXTRA_', 'nodist_EXTRA_')
2182 {
2183 my $varname = $prefix . $one_file . "_SOURCES";
2184 my $var = var $varname;
2185 next unless $var;
2187 # We are going to define _OBJECTS variables using the prefix.
2188 # Then we glom them all together. So we can't use the null
2189 # prefix here as we need it later.
2190 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2192 # Keep track of which prefixes we saw.
2193 $used_pfx{$xpfx} = 1
2194 unless $prefix =~ /EXTRA_/;
2196 push @sources, "\$($varname)";
2197 push @dist_sources, shadow_unconditionally ($varname, $where)
2198 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2200 $needlinker |=
2201 define_objects_from_sources ($varname,
2202 $xpfx . $one_file . '_OBJECTS',
2203 $prefix =~ /EXTRA_/,
2204 $one_file, $obj, $varname, $where,
2205 DIST_SOURCE => ($prefix !~ /^nodist_/),
2206 %transform);
2207 }
2208 if ($needlinker)
2209 {
2210 $linker ||= &resolve_linker (%linkers_used);
2211 }
2213 my @keys = sort keys %used_pfx;
2214 if (scalar @keys == 0)
2215 {
2216 # The default source for libfoo.la is libfoo.c, but for
2217 # backward compatibility we first look at libfoo_la.c,
2218 # if no default source suffix is given.
2219 my $old_default_source = "$one_file.c";
2220 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2221 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2222 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2223 if $default_source_ext =~ /[\t ]/;
2224 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2225 if ($old_default_source ne $default_source
2226 && !$ext_var
2227 && (rule $old_default_source
2228 || rule '$(srcdir)/' . $old_default_source
2229 || rule '${srcdir}/' . $old_default_source
2230 || -f $old_default_source))
2231 {
2232 my $loc = $where->clone;
2233 $loc->pop_context;
2234 msg ('obsolete', $loc,
2235 "the default source for `$unxformed' has been changed "
2236 . "to `$default_source'.\n(Using `$old_default_source' for "
2237 . "backward compatibility.)");
2238 $default_source = $old_default_source;
2239 }
2240 # If a rule exists to build this source with a $(srcdir)
2241 # prefix, use that prefix in our variables too. This is for
2242 # the sake of BSD Make.
2243 if (rule '$(srcdir)/' . $default_source
2244 || rule '${srcdir}/' . $default_source)
2245 {
2246 $default_source = '$(srcdir)/' . $default_source;
2247 }
2249 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2250 push (@sources, $default_source);
2251 push (@dist_sources, $default_source);
2253 %linkers_used = ();
2254 my (@result) =
2255 handle_single_transform ($one_file . '_SOURCES',
2256 $one_file . '_SOURCES',
2257 $one_file, $obj,
2258 $default_source, %transform);
2259 $linker ||= &resolve_linker (%linkers_used);
2260 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2261 }
2262 else
2263 {
2264 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2265 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2266 }
2268 # If we want to use `LINK' we must make sure it is defined.
2269 if ($linker eq '')
2270 {
2271 $need_link = 1;
2272 }
2274 return $linker;
2275 }
2278 # handle_lib_objects ($XNAME, $VAR)
2279 # ---------------------------------
2280 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2281 # Also, generate _DEPENDENCIES variable if appropriate.
2282 # Arguments are:
2283 # transformed name of object being built, or empty string if no object
2284 # name of _LDADD/_LIBADD-type variable to examine
2285 # Returns 1 if LIBOBJS seen, 0 otherwise.
2286 sub handle_lib_objects
2287 {
2288 my ($xname, $varname) = @_;
2290 my $var = var ($varname);
2291 prog_error "handle_lib_objects: `$varname' undefined"
2292 unless $var;
2293 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2294 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2295 my $prefix = $1 || 'AM_';
2297 my $seen_libobjs = 0;
2298 my $flagvar = 0;
2300 transform_variable_recursively
2301 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2302 ! $xname, INTERNAL,
2303 # Transformation function, run on each filename.
2304 sub {
2305 my ($subvar, $val, $cond, $full_cond) = @_;
2307 if ($val =~ /^-/)
2308 {
2309 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2310 if ($val !~ /^-[lL]/ &&
2311 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2312 # for Libtool libraries or programs. (Actually we are a bit
2313 # laxe here since this code also applies to non-libtool
2314 # libraries or programs, for which -dlopen and -dlopreopen
2315 # are pure nonsense. Diagnosing this doesn't seem very
2316 # important: the developer will quickly get complaints from
2317 # the linker.)
2318 $val !~ /^-dl(?:pre)?open$/ &&
2319 # Only get this error once.
2320 ! $flagvar)
2321 {
2322 $flagvar = 1;
2323 # FIXME: should display a stack of nested variables
2324 # as context when $var != $subvar.
2325 err_var ($var, "linker flags such as `$val' belong in "
2326 . "`${prefix}LDFLAGS");
2327 }
2328 return ();
2329 }
2330 elsif ($val !~ /^\@.*\@$/)
2331 {
2332 # Assume we have a file of some sort, and output it into the
2333 # dependency variable. Autoconf substitutions are not output;
2334 # rarely is a new dependency substituted into e.g. foo_LDADD
2335 # -- but bad things (e.g. -lX11) are routinely substituted.
2336 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2337 # and handled specially below.
2338 return $val;
2339 }
2340 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2341 {
2342 handle_LIBOBJS ($subvar, $cond, $1);
2343 $seen_libobjs = 1;
2344 return $val;
2345 }
2346 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2347 {
2348 handle_ALLOCA ($subvar, $cond, $1);
2349 return $val;
2350 }
2351 else
2352 {
2353 return ();
2354 }
2355 });
2357 return $seen_libobjs;
2358 }
2360 # handle_LIBOBJS_or_ALLOCA ($VAR)
2361 # -------------------------------
2362 # Definitions common to LIBOBJS and ALLOCA.
2363 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2364 sub handle_LIBOBJS_or_ALLOCA ($)
2365 {
2366 my ($var) = @_;
2368 my $dir = '';
2370 # If LIBOBJS files must be built in another directory we have
2371 # to define LIBOBJDIR and ensure the files get cleaned.
2372 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2373 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2374 if ($config_libobj_dir
2375 && $relative_dir ne $config_libobj_dir)
2376 {
2377 if (option 'subdir-objects')
2378 {
2379 # In the top-level Makefile we do not use $(top_builddir), because
2380 # we are already there, and since the targets are built without
2381 # a $(top_builddir), it helps BSD Make to match them with
2382 # dependencies.
2383 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2384 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2385 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2386 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2387 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2388 # be created by libtool as a side-effect of creating LTLIBOBJS).
2389 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2390 }
2391 else
2392 {
2393 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2394 . " `subdir-objects' is not set");
2395 }
2396 }
2398 return $dir;
2399 }
2401 sub handle_LIBOBJS ($$$)
2402 {
2403 my ($var, $cond, $lt) = @_;
2404 my $myobjext = $lt ? 'lo' : 'o';
2405 $lt ||= '';
2407 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2408 if ! keys %libsources;
2410 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2412 foreach my $iter (keys %libsources)
2413 {
2414 if ($iter =~ /\.[cly]$/)
2415 {
2416 &saw_extension ($&);
2417 &saw_extension ('.c');
2418 }
2420 if ($iter =~ /\.h$/)
2421 {
2422 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2423 }
2424 elsif ($iter ne 'alloca.c')
2425 {
2426 my $rewrite = $iter;
2427 $rewrite =~ s/\.c$/.P$myobjext/;
2428 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2429 $rewrite = "^" . quotemeta ($iter) . "\$";
2430 # Only require the file if it is not a built source.
2431 my $bs = var ('BUILT_SOURCES');
2432 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2433 {
2434 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2435 }
2436 }
2437 }
2438 }
2440 sub handle_ALLOCA ($$$)
2441 {
2442 my ($var, $cond, $lt) = @_;
2443 my $myobjext = $lt ? 'lo' : 'o';
2444 $lt ||= '';
2445 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2447 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2448 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2449 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2450 &saw_extension ('.c');
2451 }
2453 # Canonicalize the input parameter
2454 sub canonicalize
2455 {
2456 my ($string) = @_;
2457 $string =~ tr/A-Za-z0-9_\@/_/c;
2458 return $string;
2459 }
2461 # Canonicalize a name, and check to make sure the non-canonical name
2462 # is never used. Returns canonical name. Arguments are name and a
2463 # list of suffixes to check for.
2464 sub check_canonical_spelling
2465 {
2466 my ($name, @suffixes) = @_;
2468 my $xname = &canonicalize ($name);
2469 if ($xname ne $name)
2470 {
2471 foreach my $xt (@suffixes)
2472 {
2473 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2474 }
2475 }
2477 return $xname;
2478 }
2481 # handle_compile ()
2482 # -----------------
2483 # Set up the compile suite.
2484 sub handle_compile ()
2485 {
2486 return
2487 unless $get_object_extension_was_run;
2489 # Boilerplate.
2490 my $default_includes = '';
2491 if (! option 'nostdinc')
2492 {
2493 my @incs = ('-I.', subst ('am__isrc'));
2495 my $var = var 'CONFIG_HEADER';
2496 if ($var)
2497 {
2498 foreach my $hdr (split (' ', $var->variable_value))
2499 {
2500 push @incs, '-I' . dirname ($hdr);
2501 }
2502 }
2503 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2504 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2505 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2506 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2507 # to just put @am__isrc@ right after `-I.', without a space.
2508 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2509 }
2511 my (@mostly_rms, @dist_rms);
2512 foreach my $item (sort keys %compile_clean_files)
2513 {
2514 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2515 {
2516 push (@mostly_rms, "\t-rm -f $item");
2517 }
2518 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2519 {
2520 push (@dist_rms, "\t-rm -f $item");
2521 }
2522 else
2523 {
2524 prog_error 'invalid entry in %compile_clean_files';
2525 }
2526 }
2528 my ($coms, $vars, $rules) =
2529 &file_contents_internal (1, "$libdir/am/compile.am",
2530 new Automake::Location,
2531 ('DEFAULT_INCLUDES' => $default_includes,
2532 'MOSTLYRMS' => join ("\n", @mostly_rms),
2533 'DISTRMS' => join ("\n", @dist_rms)));
2534 $output_vars .= $vars;
2535 $output_rules .= "$coms$rules";
2537 # Check for automatic de-ANSI-fication.
2538 if (option 'ansi2knr')
2539 {
2540 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2541 my $ansi2knr_dir = '';
2543 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2544 TRUE, "ANSI2KNR", "U");
2546 # topdir is where ansi2knr should be.
2547 if ($ansi2knr_filename eq 'ansi2knr')
2548 {
2549 # Only require ansi2knr files if they should appear in
2550 # this directory.
2551 require_file ($ansi2knr_where, FOREIGN,
2552 'ansi2knr.c', 'ansi2knr.1');
2554 # ansi2knr needs to be built before subdirs, so unshift it.
2555 unshift (@all, '$(ANSI2KNR)');
2556 }
2557 else
2558 {
2559 $ansi2knr_dir = dirname ($ansi2knr_filename);
2560 }
2562 $output_rules .= &file_contents ('ansi2knr',
2563 new Automake::Location,
2564 'ANSI2KNR-DIR' => $ansi2knr_dir);
2566 }
2567 }
2569 # handle_libtool ()
2570 # -----------------
2571 # Handle libtool rules.
2572 sub handle_libtool
2573 {
2574 return unless var ('LIBTOOL');
2576 # Libtool requires some files, but only at top level.
2577 # (Starting with Libtool 2.0 we do not have to bother. These
2578 # requirements are done with AC_REQUIRE_AUX_FILE.)
2579 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2580 if $relative_dir eq '.' && ! $libtool_new_api;
2582 my @libtool_rms;
2583 foreach my $item (sort keys %libtool_clean_directories)
2584 {
2585 my $dir = ($item eq '.') ? '' : "$item/";
2586 # .libs is for Unix, _libs for DOS.
2587 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2588 }
2590 check_user_variables 'LIBTOOLFLAGS';
2592 # Output the libtool compilation rules.
2593 $output_rules .= &file_contents ('libtool',
2594 new Automake::Location,
2595 LTRMS => join ("\n", @libtool_rms));
2596 }
2598 # handle_programs ()
2599 # ------------------
2600 # Handle C programs.
2601 sub handle_programs
2602 {
2603 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2604 'bin', 'sbin', 'libexec', 'pkglib',
2605 'noinst', 'check');
2606 return if ! @proglist;
2608 my $seen_global_libobjs =
2609 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2611 foreach my $pair (@proglist)
2612 {
2613 my ($where, $one_file) = @$pair;
2615 my $seen_libobjs = 0;
2616 my $obj = get_object_extension '.$(OBJEXT)';
2618 # Strip any $(EXEEXT) suffix the user might have added, or this
2619 # will confuse &handle_source_transform and &check_canonical_spelling.
2620 # We'll add $(EXEEXT) back later anyway.
2621 $one_file =~ s/\$\(EXEEXT\)$//;
2623 $known_programs{$one_file} = $where;
2625 # Canonicalize names and check for misspellings.
2626 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2627 '_SOURCES', '_OBJECTS',
2628 '_DEPENDENCIES');
2630 $where->push_context ("while processing program `$one_file'");
2631 $where->set (INTERNAL->get);
2633 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2634 NONLIBTOOL => 1, LIBTOOL => 0);
2636 if (var ($xname . "_LDADD"))
2637 {
2638 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2639 }
2640 else
2641 {
2642 # User didn't define prog_LDADD override. So do it.
2643 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2645 # This does a bit too much work. But we need it to
2646 # generate _DEPENDENCIES when appropriate.
2647 if (var ('LDADD'))
2648 {
2649 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2650 }
2651 }
2653 reject_var ($xname . '_LIBADD',
2654 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2656 set_seen ($xname . '_DEPENDENCIES');
2657 set_seen ($xname . '_LDFLAGS');
2659 # Determine program to use for link.
2660 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2661 $vlink = verbose_flag ($vlink || 'GEN');
2663 # If the resulting program lies into a subdirectory,
2664 # make sure this directory will exist.
2665 my $dirstamp = require_build_directory_maybe ($one_file);
2667 $libtool_clean_directories{dirname ($one_file)} = 1;
2669 $output_rules .= &file_contents ('program',
2670 $where,
2671 PROGRAM => $one_file,
2672 XPROGRAM => $xname,
2673 XLINK => $xlink,
2674 VERBOSE => $vlink,
2675 DIRSTAMP => $dirstamp,
2676 EXEEXT => '$(EXEEXT)');
2678 if ($seen_libobjs || $seen_global_libobjs)
2679 {
2680 if (var ($xname . '_LDADD'))
2681 {
2682 &check_libobjs_sources ($xname, $xname . '_LDADD');
2683 }
2684 elsif (var ('LDADD'))
2685 {
2686 &check_libobjs_sources ($xname, 'LDADD');
2687 }
2688 }
2689 }
2690 }
2693 # handle_libraries ()
2694 # -------------------
2695 # Handle libraries.
2696 sub handle_libraries
2697 {
2698 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2699 'lib', 'pkglib', 'noinst', 'check');
2700 return if ! @liblist;
2702 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2703 'noinst', 'check');
2705 if (@prefix)
2706 {
2707 my $var = rvar ($prefix[0] . '_LIBRARIES');
2708 $var->requires_variables ('library used', 'RANLIB');
2709 }
2711 &define_variable ('AR', 'ar', INTERNAL);
2712 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2713 &define_verbose_tagvar ('AR');
2715 foreach my $pair (@liblist)
2716 {
2717 my ($where, $onelib) = @$pair;
2719 my $seen_libobjs = 0;
2720 # Check that the library fits the standard naming convention.
2721 my $bn = basename ($onelib);
2722 if ($bn !~ /^lib.*\.a$/)
2723 {
2724 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2725 my $suggestion = dirname ($onelib) . "/$bn";
2726 $suggestion =~ s|^\./||g;
2727 msg ('error-gnu/warn', $where,
2728 "`$onelib' is not a standard library name\n"
2729 . "did you mean `$suggestion'?")
2730 }
2732 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2734 $where->push_context ("while processing library `$onelib'");
2735 $where->set (INTERNAL->get);
2737 my $obj = get_object_extension '.$(OBJEXT)';
2739 # Canonicalize names and check for misspellings.
2740 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2741 '_OBJECTS', '_DEPENDENCIES',
2742 '_AR');
2744 if (! var ($xlib . '_AR'))
2745 {
2746 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2747 }
2749 # Generate support for conditional object inclusion in
2750 # libraries.
2751 if (var ($xlib . '_LIBADD'))
2752 {
2753 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2754 {
2755 $seen_libobjs = 1;
2756 }
2757 }
2758 else
2759 {
2760 &define_variable ($xlib . "_LIBADD", '', $where);
2761 }
2763 reject_var ($xlib . '_LDADD',
2764 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2766 # Make sure we at look at this.
2767 set_seen ($xlib . '_DEPENDENCIES');
2769 &handle_source_transform ($xlib, $onelib, $obj, $where,
2770 NONLIBTOOL => 1, LIBTOOL => 0);
2772 # If the resulting library lies into a subdirectory,
2773 # make sure this directory will exist.
2774 my $dirstamp = require_build_directory_maybe ($onelib);
2775 my $verbose = verbose_flag ('AR');
2776 my $silent = silent_flag ();
2778 $output_rules .= &file_contents ('library',
2779 $where,
2780 VERBOSE => $verbose,
2781 SILENT => $silent,
2782 LIBRARY => $onelib,
2783 XLIBRARY => $xlib,
2784 DIRSTAMP => $dirstamp);
2786 if ($seen_libobjs)
2787 {
2788 if (var ($xlib . '_LIBADD'))
2789 {
2790 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2791 }
2792 }
2793 }
2794 }
2797 # handle_ltlibraries ()
2798 # ---------------------
2799 # Handle shared libraries.
2800 sub handle_ltlibraries
2801 {
2802 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2803 'noinst', 'lib', 'pkglib', 'check');
2804 return if ! @liblist;
2806 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2807 'noinst', 'check');
2809 if (@prefix)
2810 {
2811 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2812 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2813 }
2815 my %instdirs = ();
2816 my %instsubdirs = ();
2817 my %instconds = ();
2818 my %liblocations = (); # Location (in Makefile.am) of each library.
2820 foreach my $key (@prefix)
2821 {
2822 # Get the installation directory of each library.
2823 my $dir = $key;
2824 my $strip_subdir = 1;
2825 if ($dir =~ /^nobase_/)
2826 {
2827 $dir =~ s/^nobase_//;
2828 $strip_subdir = 0;
2829 }
2830 my $var = rvar ($key . '_LTLIBRARIES');
2832 # We reject libraries which are installed in several places
2833 # in the same condition, because we can only specify one
2834 # `-rpath' option.
2835 $var->traverse_recursively
2836 (sub
2837 {
2838 my ($var, $val, $cond, $full_cond) = @_;
2839 my $hcond = $full_cond->human;
2840 my $where = $var->rdef ($cond)->location;
2841 my $ldir = '';
2842 $ldir = '/' . dirname ($val)
2843 if (!$strip_subdir);
2844 # A library cannot be installed in different directory
2845 # in overlapping conditions.
2846 if (exists $instconds{$val})
2847 {
2848 my ($msg, $acond) =
2849 $instconds{$val}->ambiguous_p ($val, $full_cond);
2851 if ($msg)
2852 {
2853 error ($where, $msg, partial => 1);
2854 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2855 $dirtxt = "built for `$dir'"
2856 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2857 my $dircond =
2858 $full_cond->true ? "" : " in condition $hcond";
2860 error ($where, "`$val' should be $dirtxt$dircond ...",
2861 partial => 1);
2863 my $hacond = $acond->human;
2864 my $adir = $instdirs{$val}{$acond};
2865 my $adirtxt = "installed in `$adir'";
2866 $adirtxt = "built for `$adir'"
2867 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2868 || $adir eq 'check');
2869 my $adircond = $acond->true ? "" : " in condition $hacond";
2871 my $onlyone = ($dir ne $adir) ?
2872 ("\nLibtool libraries can be built for only one "
2873 . "destination.") : "";
2875 error ($liblocations{$val}{$acond},
2876 "... and should also be $adirtxt$adircond.$onlyone");
2877 return;
2878 }
2879 }
2880 else
2881 {
2882 $instconds{$val} = new Automake::DisjConditions;
2883 }
2884 $instdirs{$val}{$full_cond} = $dir;
2885 $instsubdirs{$val}{$full_cond} = $ldir;
2886 $liblocations{$val}{$full_cond} = $where;
2887 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2888 },
2889 sub
2890 {
2891 return ();
2892 },
2893 skip_ac_subst => 1);
2894 }
2896 foreach my $pair (@liblist)
2897 {
2898 my ($where, $onelib) = @$pair;
2900 my $seen_libobjs = 0;
2901 my $obj = get_object_extension '.lo';
2903 # Canonicalize names and check for misspellings.
2904 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2905 '_SOURCES', '_OBJECTS',
2906 '_DEPENDENCIES');
2908 # Check that the library fits the standard naming convention.
2909 my $libname_rx = '^lib.*\.la';
2910 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2911 my $ldvar2 = var ('LDFLAGS');
2912 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2913 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2914 {
2915 # Relax name checking for libtool modules.
2916 $libname_rx = '\.la';
2917 }
2919 my $bn = basename ($onelib);
2920 if ($bn !~ /$libname_rx$/)
2921 {
2922 my $type = 'library';
2923 if ($libname_rx eq '\.la')
2924 {
2925 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2926 $type = 'module';
2927 }
2928 else
2929 {
2930 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2931 }
2932 my $suggestion = dirname ($onelib) . "/$bn";
2933 $suggestion =~ s|^\./||g;
2934 msg ('error-gnu/warn', $where,
2935 "`$onelib' is not a standard libtool $type name\n"
2936 . "did you mean `$suggestion'?")
2937 }
2939 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2941 $where->push_context ("while processing Libtool library `$onelib'");
2942 $where->set (INTERNAL->get);
2944 # Make sure we look at these.
2945 set_seen ($xlib . '_LDFLAGS');
2946 set_seen ($xlib . '_DEPENDENCIES');
2948 # Generate support for conditional object inclusion in
2949 # libraries.
2950 if (var ($xlib . '_LIBADD'))
2951 {
2952 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2953 {
2954 $seen_libobjs = 1;
2955 }
2956 }
2957 else
2958 {
2959 &define_variable ($xlib . "_LIBADD", '', $where);
2960 }
2962 reject_var ("${xlib}_LDADD",
2963 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2966 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2967 NONLIBTOOL => 0, LIBTOOL => 1);
2969 # Determine program to use for link.
2970 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2971 $vlink = verbose_flag ($vlink || 'GEN');
2973 my $rpathvar = "am_${xlib}_rpath";
2974 my $rpath = "\$($rpathvar)";
2975 foreach my $rcond ($instconds{$onelib}->conds)
2976 {
2977 my $val;
2978 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2979 || $instdirs{$onelib}{$rcond} eq 'noinst'
2980 || $instdirs{$onelib}{$rcond} eq 'check')
2981 {
2982 # It's an EXTRA_ library, so we can't specify -rpath,
2983 # because we don't know where the library will end up.
2984 # The user probably knows, but generally speaking automake
2985 # doesn't -- and in fact configure could decide
2986 # dynamically between two different locations.
2987 $val = '';
2988 }
2989 else
2990 {
2991 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2992 $val .= $instsubdirs{$onelib}{$rcond}
2993 if defined $instsubdirs{$onelib}{$rcond};
2994 }
2995 if ($rcond->true)
2996 {
2997 # If $rcond is true there is only one condition and
2998 # there is no point defining an helper variable.
2999 $rpath = $val;
3000 }
3001 else
3002 {
3003 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3004 }
3005 }
3007 # If the resulting library lies into a subdirectory,
3008 # make sure this directory will exist.
3009 my $dirstamp = require_build_directory_maybe ($onelib);
3011 # Remember to cleanup .libs/ in this directory.
3012 my $dirname = dirname $onelib;
3013 $libtool_clean_directories{$dirname} = 1;
3015 $output_rules .= &file_contents ('ltlibrary',
3016 $where,
3017 LTLIBRARY => $onelib,
3018 XLTLIBRARY => $xlib,
3019 RPATH => $rpath,
3020 XLINK => $xlink,
3021 VERBOSE => $vlink,
3022 DIRSTAMP => $dirstamp);
3023 if ($seen_libobjs)
3024 {
3025 if (var ($xlib . '_LIBADD'))
3026 {
3027 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3028 }
3029 }
3030 }
3031 }
3033 # See if any _SOURCES variable were misspelled.
3034 sub check_typos ()
3035 {
3036 # It is ok if the user sets this particular variable.
3037 set_seen 'AM_LDFLAGS';
3039 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3040 {
3041 foreach my $var (variables $primary)
3042 {
3043 my $varname = $var->name;
3044 # A configure variable is always legitimate.
3045 next if exists $configure_vars{$varname};
3047 for my $cond ($var->conditions->conds)
3048 {
3049 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3050 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3051 . " program or\nlibrary has `$1' as canonical name"
3052 . " (possible typo)")
3053 unless $var->rdef ($cond)->seen;
3054 }
3055 }
3056 }
3057 }
3060 # Handle scripts.
3061 sub handle_scripts
3062 {
3063 # NOTE we no longer automatically clean SCRIPTS, because it is
3064 # useful to sometimes distribute scripts verbatim. This happens
3065 # e.g. in Automake itself.
3066 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3067 'bin', 'sbin', 'libexec', 'pkgdata',
3068 'noinst', 'check');
3069 }
3074 ## ------------------------ ##
3075 ## Handling Texinfo files. ##
3076 ## ------------------------ ##
3078 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3079 # &scan_texinfo_file ($FILENAME)
3080 # ------------------------------
3081 # $OUTFILE - name of the info file produced by $FILENAME.
3082 # $VFILE - name of the version.texi file used (undef if none).
3083 # @CLEAN_FILES - list of byproducts (indexes etc.)
3084 sub scan_texinfo_file ($)
3085 {
3086 my ($filename) = @_;
3088 # Some of the following extensions are always created, no matter
3089 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3090 # are only created when they are used. We used to scan $FILENAME
3091 # for their use, but that is not enough: they could be used in
3092 # included files. We can't scan included files because we don't
3093 # know the include path. Therefore we always erase these files, no
3094 # matter whether they are used or not.
3095 #
3096 # (tmp is only created if an @macro is used and a certain e-TeX
3097 # feature is not available.)
3098 my %clean_suffixes =
3099 map { $_ => 1 } (qw(aux log toc tmp
3100 cp cps
3101 fn fns
3102 ky kys
3103 vr vrs
3104 tp tps
3105 pg pgs)); # grep 'new.*index' texinfo.tex
3107 my $texi = new Automake::XFile "< $filename";
3108 verb "reading $filename";
3110 my ($outfile, $vfile);
3111 while ($_ = $texi->getline)
3112 {
3113 if (/^\@setfilename +(\S+)/)
3114 {
3115 # Honor only the first @setfilename. (It's possible to have
3116 # more occurrences later if the manual shows examples of how
3117 # to use @setfilename...)
3118 next if $outfile;
3120 $outfile = $1;
3121 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3122 {
3123 error ("$filename:$.",
3124 "output `$outfile' has unrecognized extension");
3125 return;
3126 }
3127 }
3128 # A "version.texi" file is actually any file whose name matches
3129 # "vers*.texi".
3130 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3131 {
3132 $vfile = $1;
3133 }
3135 # Try to find new or unused indexes.
3137 # Creating a new category of index.
3138 elsif (/^\@def(code)?index (\w+)/)
3139 {
3140 $clean_suffixes{$2} = 1;
3141 $clean_suffixes{"$2s"} = 1;
3142 }
3144 # Merging an index into an another.
3145 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3146 {
3147 delete $clean_suffixes{"$2s"};
3148 $clean_suffixes{"$3s"} = 1;
3149 }
3151 }
3153 if (! $outfile)
3154 {
3155 err_am "`$filename' missing \@setfilename";
3156 return;
3157 }
3159 my $infobase = basename ($filename);
3160 $infobase =~ s/\.te?xi(nfo)?$//;
3161 return ($outfile, $vfile,
3162 map { "$infobase.$_" } (sort keys %clean_suffixes));
3163 }
3166 # ($DIRSTAMP, @CLEAN_FILES)
3167 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3168 # ------------------------------------------------------------------
3169 # SOURCE - the source Texinfo file
3170 # DEST - the destination Info file
3171 # INSRC - wether DEST should be built in the source tree
3172 # DEPENDENCIES - known dependencies
3173 sub output_texinfo_build_rules ($$$@)
3174 {
3175 my ($source, $dest, $insrc, @deps) = @_;
3177 # Split `a.texi' into `a' and `.texi'.
3178 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3179 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3181 $ssfx ||= "";
3182 $dsfx ||= "";
3184 # We can output two kinds of rules: the "generic" rules use Make
3185 # suffix rules and are appropriate when $source and $dest do not lie
3186 # in a sub-directory; the "specific" rules are needed in the other
3187 # case.
3188 #
3189 # The former are output only once (this is not really apparent here,
3190 # but just remember that some logic deeper in Automake will not
3191 # output the same rule twice); while the later need to be output for
3192 # each Texinfo source.
3193 my $generic;
3194 my $makeinfoflags;
3195 my $sdir = dirname $source;
3196 if ($sdir eq '.' && dirname ($dest) eq '.')
3197 {
3198 $generic = 1;
3199 $makeinfoflags = '-I $(srcdir)';
3200 }
3201 else
3202 {
3203 $generic = 0;
3204 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3205 }
3207 # A directory can contain two kinds of info files: some built in the
3208 # source tree, and some built in the build tree. The rules are
3209 # different in each case. However we cannot output two different
3210 # set of generic rules. Because in-source builds are more usual, we
3211 # use generic rules in this case and fall back to "specific" rules
3212 # for build-dir builds. (It should not be a problem to invert this
3213 # if needed.)
3214 $generic = 0 unless $insrc;
3216 # We cannot use a suffix rule to build info files with an empty
3217 # extension. Otherwise we would output a single suffix inference
3218 # rule, with separate dependencies, as in
3219 #
3220 # .texi:
3221 # $(MAKEINFO) ...
3222 # foo.info: foo.texi
3223 #
3224 # which confuse Solaris make. (See the Autoconf manual for
3225 # details.) Therefore we use a specific rule in this case. This
3226 # applies to info files only (dvi and pdf files always have an
3227 # extension).
3228 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3230 # If the resulting file lie into a subdirectory,
3231 # make sure this directory will exist.
3232 my $dirstamp = require_build_directory_maybe ($dest);
3234 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3236 $output_rules .= file_contents ('texibuild',
3237 new Automake::Location,
3238 DEPS => "@deps",
3239 DEST_PREFIX => $dpfx,
3240 DEST_INFO_PREFIX => $dipfx,
3241 DEST_SUFFIX => $dsfx,
3242 DIRSTAMP => $dirstamp,
3243 GENERIC => $generic,
3244 GENERIC_INFO => $generic_info,
3245 INSRC => $insrc,
3246 MAKEINFOFLAGS => $makeinfoflags,
3247 SOURCE => ($generic
3248 ? '$<' : $source),
3249 SOURCE_INFO => ($generic_info
3250 ? '$<' : $source),
3251 SOURCE_REAL => $source,
3252 SOURCE_SUFFIX => $ssfx,
3253 );
3254 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3255 }
3258 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3259 # handle_texinfo_helper ($info_texinfos)
3260 # --------------------------------------
3261 # Handle all Texinfo source; helper for handle_texinfo.
3262 sub handle_texinfo_helper ($)
3263 {
3264 my ($info_texinfos) = @_;
3265 my (@infobase, @info_deps_list, @texi_deps);
3266 my %versions;
3267 my $done = 0;
3268 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3270 # Build a regex matching user-cleaned files.
3271 my $d = var 'DISTCLEANFILES';
3272 my $c = var 'CLEANFILES';
3273 my @f = ();
3274 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3275 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3276 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3277 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3279 foreach my $texi
3280 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3281 {
3282 my $infobase = $texi;
3283 $infobase =~ s/\.(txi|texinfo|texi)$//;
3285 if ($infobase eq $texi)
3286 {
3287 # FIXME: report line number.
3288 err_am "texinfo file `$texi' has unrecognized extension";
3289 next;
3290 }
3292 push @infobase, $infobase;
3294 # If 'version.texi' is referenced by input file, then include
3295 # automatic versioning capability.
3296 my ($out_file, $vtexi, @clean_files) =
3297 scan_texinfo_file ("$relative_dir/$texi")
3298 or next;
3299 push (@mostly_cleans, @clean_files);
3301 # If the Texinfo source is in a subdirectory, create the
3302 # resulting info in this subdirectory. If it is in the current
3303 # directory, try hard to not prefix "./" because it breaks the
3304 # generic rules.
3305 my $outdir = dirname ($texi) . '/';
3306 $outdir = "" if $outdir eq './';
3307 $out_file = $outdir . $out_file;
3309 # Until Automake 1.6.3, .info files were built in the
3310 # source tree. This was an obstacle to the support of
3311 # non-distributed .info files, and non-distributed .texi
3312 # files.
3313 #
3314 # * Non-distributed .texi files is important in some packages
3315 # where .texi files are built at make time, probably using
3316 # other binaries built in the package itself, maybe using
3317 # tools or information found on the build host. Because
3318 # these files are not distributed they are always rebuilt
3319 # at make time; they should therefore not lie in the source
3320 # directory. One plan was to support this using
3321 # nodist_info_TEXINFOS or something similar. (Doing this
3322 # requires some sanity checks. For instance Automake should
3323 # not allow:
3324 # dist_info_TEXINFOS = foo.texi
3325 # nodist_foo_TEXINFOS = included.texi
3326 # because a distributed file should never depend on a
3327 # non-distributed file.)
3328 #
3329 # * If .texi files are not distributed, then .info files should
3330 # not be distributed either. There are also cases where one
3331 # wants to distribute .texi files, but does not want to
3332 # distribute the .info files. For instance the Texinfo package
3333 # distributes the tool used to build these files; it would
3334 # be a waste of space to distribute them. It's not clear
3335 # which syntax we should use to indicate that .info files should
3336 # not be distributed. Akim Demaille suggested that eventually
3337 # we switch to a new syntax:
3338 # | Maybe we should take some inspiration from what's already
3339 # | done in the rest of Automake. Maybe there is too much
3340 # | syntactic sugar here, and you want
3341 # | nodist_INFO = bar.info
3342 # | dist_bar_info_SOURCES = bar.texi
3343 # | bar_texi_DEPENDENCIES = foo.texi
3344 # | with a bit of magic to have bar.info represent the whole
3345 # | bar*info set. That's a lot more verbose that the current
3346 # | situation, but it is # not new, hence the user has less
3347 # | to learn.
3348 # |
3349 # | But there is still too much room for meaningless specs:
3350 # | nodist_INFO = bar.info
3351 # | dist_bar_info_SOURCES = bar.texi
3352 # | dist_PS = bar.ps something-written-by-hand.ps
3353 # | nodist_bar_ps_SOURCES = bar.texi
3354 # | bar_texi_DEPENDENCIES = foo.texi
3355 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3356 #
3357 # Back to the point, it should be clear that in order to support
3358 # non-distributed .info files, we need to build them in the
3359 # build tree, not in the source tree (non-distributed .texi
3360 # files are less of a problem, because we do not output build
3361 # rules for them). In Automake 1.7 .info build rules have been
3362 # largely cleaned up so that .info files get always build in the
3363 # build tree, even when distributed. The idea was that
3364 # (1) if during a VPATH build the .info file was found to be
3365 # absent or out-of-date (in the source tree or in the
3366 # build tree), Make would rebuild it in the build tree.
3367 # If an up-to-date source-tree of the .info file existed,
3368 # make would not rebuild it in the build tree.
3369 # (2) having two copies of .info files, one in the source tree
3370 # and one (newer) in the build tree is not a problem
3371 # because `make dist' always pick files in the build tree
3372 # first.
3373 # However it turned out the be a bad idea for several reasons:
3374 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3375 # like GNU Make on point (1) above. These implementations
3376 # of Make would always rebuild .info files in the build
3377 # tree, even if such files were up to date in the source
3378 # tree. Consequently, it was impossible to perform a VPATH
3379 # build of a package containing Texinfo files using these
3380 # Make implementations.
3381 # (Refer to the Autoconf Manual, section "Limitation of
3382 # Make", paragraph "VPATH", item "target lookup", for
3383 # an account of the differences between these
3384 # implementations.)
3385 # * The GNU Coding Standards require these files to be built
3386 # in the source-tree (when they are distributed, that is).
3387 # * Keeping a fresher copy of distributed files in the
3388 # build tree can be annoying during development because
3389 # - if the files is kept under CVS, you really want it
3390 # to be updated in the source tree
3391 # - it is confusing that `make distclean' does not erase
3392 # all files in the build tree.
3393 #
3394 # Consequently, starting with Automake 1.8, .info files are
3395 # built in the source tree again. Because we still plan to
3396 # support non-distributed .info files at some point, we
3397 # have a single variable ($INSRC) that controls whether
3398 # the current .info file must be built in the source tree
3399 # or in the build tree. Actually this variable is switched
3400 # off for .info files that appear to be cleaned; this is
3401 # for backward compatibility with package such as Texinfo,
3402 # which do things like
3403 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3404 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3405 # # Do not create info files for distribution.
3406 # dist-info:
3407 # in order not to distribute .info files.
3408 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3410 my $soutdir = '$(srcdir)/' . $outdir;
3411 $outdir = $soutdir if $insrc;
3413 # If user specified file_TEXINFOS, then use that as explicit
3414 # dependency list.
3415 @texi_deps = ();
3416 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3418 my $canonical = canonicalize ($infobase);
3419 if (var ($canonical . "_TEXINFOS"))
3420 {
3421 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3422 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3423 }
3425 my ($dirstamp, @cfiles) =
3426 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3427 push (@texi_cleans, @cfiles);
3429 push (@info_deps_list, $out_file);
3431 # If a vers*.texi file is needed, emit the rule.
3432 if ($vtexi)
3433 {
3434 err_am ("`$vtexi', included in `$texi', "
3435 . "also included in `$versions{$vtexi}'")
3436 if defined $versions{$vtexi};
3437 $versions{$vtexi} = $texi;
3439 # We number the stamp-vti files. This is doable since the
3440 # actual names don't matter much. We only number starting
3441 # with the second one, so that the common case looks nice.
3442 my $vti = ($done ? $done : 'vti');
3443 ++$done;
3445 # This is ugly, but it is our historical practice.
3446 if ($config_aux_dir_set_in_configure_ac)
3447 {
3448 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3449 'mdate-sh');
3450 }
3451 else
3452 {
3453 require_file_with_macro (TRUE, 'info_TEXINFOS',
3454 FOREIGN, 'mdate-sh');
3455 }
3457 my $conf_dir;
3458 if ($config_aux_dir_set_in_configure_ac)
3459 {
3460 $conf_dir = "$am_config_aux_dir/";
3461 }
3462 else
3463 {
3464 $conf_dir = '$(srcdir)/';
3465 }
3466 $output_rules .= file_contents ('texi-vers',
3467 new Automake::Location,
3468 TEXI => $texi,
3469 VTI => $vti,
3470 STAMPVTI => "${soutdir}stamp-$vti",
3471 VTEXI => "$soutdir$vtexi",
3472 MDDIR => $conf_dir,
3473 DIRSTAMP => $dirstamp);
3474 }
3475 }
3477 # Handle location of texinfo.tex.
3478 my $need_texi_file = 0;
3479 my $texinfodir;
3480 if (var ('TEXINFO_TEX'))
3481 {
3482 # The user defined TEXINFO_TEX so assume he knows what he is
3483 # doing.
3484 $texinfodir = ('$(srcdir)/'
3485 . dirname (variable_value ('TEXINFO_TEX')));
3486 }
3487 elsif (option 'cygnus')
3488 {
3489 $texinfodir = '$(top_srcdir)/../texinfo';
3490 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3491 }
3492 elsif ($config_aux_dir_set_in_configure_ac)
3493 {
3494 $texinfodir = $am_config_aux_dir;
3495 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3496 $need_texi_file = 2; # so that we require_conf_file later
3497 }
3498 else
3499 {
3500 $texinfodir = '$(srcdir)';
3501 $need_texi_file = 1;
3502 }
3503 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3505 push (@dist_targets, 'dist-info');
3507 if (! option 'no-installinfo')
3508 {
3509 # Make sure documentation is made and installed first. Use
3510 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3511 # get run twice during "make all".
3512 unshift (@all, '$(INFO_DEPS)');
3513 }
3515 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3516 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3517 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3518 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3520 # This next isn't strictly needed now -- the places that look here
3521 # could easily be changed to look in info_TEXINFOS. But this is
3522 # probably better, in case noinst_TEXINFOS is ever supported.
3523 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3525 # Do some error checking. Note that this file is not required
3526 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3527 # up above.
3528 if ($need_texi_file && ! option 'no-texinfo.tex')
3529 {
3530 if ($need_texi_file > 1)
3531 {
3532 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3533 'texinfo.tex');
3534 }
3535 else
3536 {
3537 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3538 'texinfo.tex');
3539 }
3540 }
3542 return (makefile_wrap ("", "\t ", @mostly_cleans),
3543 makefile_wrap ("", "\t ", @texi_cleans),
3544 makefile_wrap ("", "\t ", @maint_cleans));
3545 }
3548 # handle_texinfo ()
3549 # -----------------
3550 # Handle all Texinfo source.
3551 sub handle_texinfo ()
3552 {
3553 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3554 # FIXME: I think this is an obsolete future feature name.
3555 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3557 my $info_texinfos = var ('info_TEXINFOS');
3558 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3559 if ($info_texinfos)
3560 {
3561 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3562 chomp $mostlyclean;
3563 chomp $clean;
3564 chomp $maintclean;
3565 }
3567 $output_rules .= file_contents ('texinfos',
3568 new Automake::Location,
3569 MOSTLYCLEAN => $mostlyclean,
3570 TEXICLEAN => $clean,
3571 MAINTCLEAN => $maintclean,
3572 'LOCAL-TEXIS' => !!$info_texinfos);
3573 }
3576 # Handle any man pages.
3577 sub handle_man_pages
3578 {
3579 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3581 # Find all the sections in use. We do this by first looking for
3582 # "standard" sections, and then looking for any additional
3583 # sections used in man_MANS.
3584 my (%sections, %notrans_sections, %trans_sections,
3585 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3586 # We handle nodist_ for uniformity. man pages aren't distributed
3587 # by default so it isn't actually very important.
3588 foreach my $npfx ('', 'notrans_')
3589 {
3590 foreach my $pfx ('', 'dist_', 'nodist_')
3591 {
3592 # Add more sections as needed.
3593 foreach my $section ('0'..'9', 'n', 'l')
3594 {
3595 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3596 if (var ($varname))
3597 {
3598 $sections{$section} = 1;
3599 $varname = '$(' . $varname . ')';
3600 if ($npfx eq 'notrans_')
3601 {
3602 $notrans_sections{$section} = 1;
3603 $notrans_sect_vars{$varname} = 1;
3604 }
3605 else
3606 {
3607 $trans_sections{$section} = 1;
3608 $trans_sect_vars{$varname} = 1;
3609 }
3611 &push_dist_common ($varname)
3612 if $pfx eq 'dist_';
3613 }
3614 }
3616 my $varname = $npfx . $pfx . 'man_MANS';
3617 my $var = var ($varname);
3618 if ($var)
3619 {
3620 foreach ($var->value_as_list_recursive)
3621 {
3622 # A page like `foo.1c' goes into man1dir.
3623 if (/\.([0-9a-z])([a-z]*)$/)
3624 {
3625 $sections{$1} = 1;
3626 if ($npfx eq 'notrans_')
3627 {
3628 $notrans_sections{$1} = 1;
3629 }
3630 else
3631 {
3632 $trans_sections{$1} = 1;
3633 }
3634 }
3635 }
3637 $varname = '$(' . $varname . ')';
3638 if ($npfx eq 'notrans_')
3639 {
3640 $notrans_vars{$varname} = 1;
3641 }
3642 else
3643 {
3644 $trans_vars{$varname} = 1;
3645 }
3646 &push_dist_common ($varname)
3647 if $pfx eq 'dist_';
3648 }
3649 }
3650 }
3652 return unless %sections;
3654 my @unsorted_deps;
3656 # Build section independent variables.
3657 my $have_notrans = %notrans_vars;
3658 my @notrans_list = sort keys %notrans_vars;
3659 my $have_trans = %trans_vars;
3660 my @trans_list = sort keys %trans_vars;
3662 # Now for each section, generate an install and uninstall rule.
3663 # Sort sections so output is deterministic.
3664 foreach my $section (sort keys %sections)
3665 {
3666 # Build section dependent variables.
3667 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3668 my $trans_mans = $have_trans || exists $trans_sections{$section};
3669 my (%notrans_this_sect, %trans_this_sect);
3670 my $expr = 'man' . $section . '_MANS';
3671 foreach my $varname (keys %notrans_sect_vars)
3672 {
3673 if ($varname =~ /$expr/)
3674 {
3675 $notrans_this_sect{$varname} = 1;
3676 }
3677 }
3678 foreach my $varname (keys %trans_sect_vars)
3679 {
3680 if ($varname =~ /$expr/)
3681 {
3682 $trans_this_sect{$varname} = 1;
3683 }
3684 }
3685 my @notrans_sect_list = sort keys %notrans_this_sect;
3686 my @trans_sect_list = sort keys %trans_this_sect;
3687 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3688 keys %notrans_this_sect, keys %trans_this_sect);
3689 my @deps = sort @unsorted_deps;
3690 $output_rules .= &file_contents ('mans',
3691 new Automake::Location,
3692 SECTION => $section,
3693 DEPS => "@deps",
3694 NOTRANS_MANS => $notrans_mans,
3695 NOTRANS_SECT_LIST => "@notrans_sect_list",
3696 HAVE_NOTRANS => $have_notrans,
3697 NOTRANS_LIST => "@notrans_list",
3698 TRANS_MANS => $trans_mans,
3699 TRANS_SECT_LIST => "@trans_sect_list",
3700 HAVE_TRANS => $have_trans,
3701 TRANS_LIST => "@trans_list");
3702 }
3704 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3705 keys %notrans_sect_vars, keys %trans_sect_vars);
3706 my @mans = sort @unsorted_deps;
3707 $output_vars .= file_contents ('mans-vars',
3708 new Automake::Location,
3709 MANS => "@mans");
3711 push (@all, '$(MANS)')
3712 unless option 'no-installman';
3713 }
3715 # Handle DATA variables.
3716 sub handle_data
3717 {
3718 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3719 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3720 'sysconf', 'sharedstate', 'localstate',
3721 'pkgdata', 'lisp', 'noinst', 'check');
3722 }
3724 # Handle TAGS.
3725 sub handle_tags
3726 {
3727 my @tag_deps = ();
3728 my @ctag_deps = ();
3729 if (var ('SUBDIRS'))
3730 {
3731 $output_rules .= ("tags-recursive:\n"
3732 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3733 # Never fail here if a subdir fails; it
3734 # isn't important.
3735 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3736 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3737 . "\tdone\n");
3738 push (@tag_deps, 'tags-recursive');
3739 &depend ('.PHONY', 'tags-recursive');
3740 &depend ('.MAKE', 'tags-recursive');
3742 $output_rules .= ("ctags-recursive:\n"
3743 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3744 # Never fail here if a subdir fails; it
3745 # isn't important.
3746 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3747 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3748 . "\tdone\n");
3749 push (@ctag_deps, 'ctags-recursive');
3750 &depend ('.PHONY', 'ctags-recursive');
3751 &depend ('.MAKE', 'ctags-recursive');
3752 }
3754 if (&saw_sources_p (1)
3755 || var ('ETAGS_ARGS')
3756 || @tag_deps)
3757 {
3758 my @config;
3759 foreach my $spec (@config_headers)
3760 {
3761 my ($out, @ins) = split_config_file_spec ($spec);
3762 foreach my $in (@ins)
3763 {
3764 # If the config header source is in this directory,
3765 # require it.
3766 push @config, basename ($in)
3767 if $relative_dir eq dirname ($in);
3768 }
3769 }
3770 $output_rules .= &file_contents ('tags',
3771 new Automake::Location,
3772 CONFIG => "@config",
3773 TAGSDIRS => "@tag_deps",
3774 CTAGSDIRS => "@ctag_deps");
3776 set_seen 'TAGS_DEPENDENCIES';
3777 }
3778 elsif (reject_var ('TAGS_DEPENDENCIES',
3779 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3780 . "without\nsources or `ETAGS_ARGS'"))
3781 {
3782 }
3783 else
3784 {
3785 # Every Makefile must define some sort of TAGS rule.
3786 # Otherwise, it would be possible for a top-level "make TAGS"
3787 # to fail because some subdirectory failed.
3788 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3789 # Ditto ctags.
3790 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3791 }
3792 }
3794 # Handle multilib support.
3795 sub handle_multilib
3796 {
3797 if ($seen_multilib && $relative_dir eq '.')
3798 {
3799 $output_rules .= &file_contents ('multilib', new Automake::Location);
3800 push (@all, 'all-multi');
3801 }
3802 }
3805 # user_phony_rule ($NAME)
3806 # -----------------------
3807 # Return false if rule $NAME does not exist. Otherwise,
3808 # declare it as phony, complete its definition (in case it is
3809 # conditional), and return its Automake::Rule instance.
3810 sub user_phony_rule ($)
3811 {
3812 my ($name) = @_;
3813 my $rule = rule $name;
3814 if ($rule)
3815 {
3816 depend ('.PHONY', $name);
3817 # Define $NAME in all condition where it is not already defined,
3818 # so that it is always OK to depend on $NAME.
3819 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3820 {
3821 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3822 $c, INTERNAL);
3823 $output_rules .= $c->subst_string . "$name:\n";
3824 }
3825 }
3826 return $rule;
3827 }
3830 # $BOOLEAN
3831 # &for_dist_common ($A, $B)
3832 # -------------------------
3833 # Subroutine for &handle_dist: sort files to dist.
3834 #
3835 # We put README first because it then becomes easier to make a
3836 # Usenet-compliant shar file (in these, README must be first).
3837 #
3838 # FIXME: do more ordering of files here.
3839 sub for_dist_common
3840 {
3841 return 0
3842 if $a eq $b;
3843 return -1
3844 if $a eq 'README';
3845 return 1
3846 if $b eq 'README';
3847 return $a cmp $b;
3848 }
3850 # handle_dist
3851 # -----------
3852 # Handle 'dist' target.
3853 sub handle_dist ()
3854 {
3855 # Substitutions for distdir.am
3856 my %transform;
3858 # Define DIST_SUBDIRS. This must always be done, regardless of the
3859 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3860 my $subdirs = var ('SUBDIRS');
3861 if ($subdirs)
3862 {
3863 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3864 # to all possible directories, and use it. If DIST_SUBDIRS is
3865 # defined, just use it.
3867 # Note that we check DIST_SUBDIRS first on purpose, so that
3868 # we don't call has_conditional_contents for now reason.
3869 # (In the past one project used so many conditional subdirectories
3870 # that calling has_conditional_contents on SUBDIRS caused
3871 # automake to grow to 150Mb -- this should not happen with
3872 # the current implementation of has_conditional_contents,
3873 # but it's more efficient to avoid the call anyway.)
3874 if (var ('DIST_SUBDIRS'))
3875 {
3876 }
3877 elsif ($subdirs->has_conditional_contents)
3878 {
3879 define_pretty_variable
3880 ('DIST_SUBDIRS', TRUE, INTERNAL,
3881 uniq ($subdirs->value_as_list_recursive));
3882 }
3883 else
3884 {
3885 # We always define this because that is what `distclean'
3886 # wants.
3887 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3888 '$(SUBDIRS)');
3889 }
3890 }
3892 # The remaining definitions are only required when a dist target is used.
3893 return if option 'no-dist';
3895 # At least one of the archive formats must be enabled.
3896 if ($relative_dir eq '.')
3897 {
3898 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3899 $archive_defined ||=
3900 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma xz);
3901 error (option 'no-dist-gzip',
3902 "no-dist-gzip specified but no dist-* specified, "
3903 . "at least one archive format must be enabled")
3904 unless $archive_defined;
3905 }
3907 # Look for common files that should be included in distribution.
3908 # If the aux dir is set, and it does not have a Makefile.am, then
3909 # we check for these files there as well.
3910 my $check_aux = 0;
3911 if ($relative_dir eq '.'
3912 && $config_aux_dir_set_in_configure_ac)
3913 {
3914 if (! &is_make_dir ($config_aux_dir))
3915 {
3916 $check_aux = 1;
3917 }
3918 }
3919 foreach my $cfile (@common_files)
3920 {
3921 if (dir_has_case_matching_file ($relative_dir, $cfile)
3922 # The file might be absent, but if it can be built it's ok.
3923 || rule $cfile)
3924 {
3925 &push_dist_common ($cfile);
3926 }
3928 # Don't use `elsif' here because a file might meaningfully
3929 # appear in both directories.
3930 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3931 {
3932 &push_dist_common ("$config_aux_dir/$cfile")
3933 }
3934 }
3936 # We might copy elements from $configure_dist_common to
3937 # %dist_common if we think we need to. If the file appears in our
3938 # directory, we would have discovered it already, so we don't
3939 # check that. But if the file is in a subdir without a Makefile,
3940 # we want to distribute it here if we are doing `.'. Ugly!
3941 if ($relative_dir eq '.')
3942 {
3943 foreach my $file (split (' ' , $configure_dist_common))
3944 {
3945 push_dist_common ($file)
3946 unless is_make_dir (dirname ($file));
3947 }
3948 }
3950 # Files to distributed. Don't use ->value_as_list_recursive
3951 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3952 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3953 @dist_common = uniq (sort for_dist_common (@dist_common));
3954 variable_delete 'DIST_COMMON';
3955 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3957 # Now that we've processed DIST_COMMON, disallow further attempts
3958 # to set it.
3959 $handle_dist_run = 1;
3961 # Scan EXTRA_DIST to see if we need to distribute anything from a
3962 # subdir. If so, add it to the list. I didn't want to do this
3963 # originally, but there were so many requests that I finally
3964 # relented.
3965 my $extra_dist = var ('EXTRA_DIST');
3967 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3968 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3970 # If the target `dist-hook' exists, make sure it is run. This
3971 # allows users to do random weird things to the distribution
3972 # before it is packaged up.
3973 push (@dist_targets, 'dist-hook')
3974 if user_phony_rule 'dist-hook';
3975 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3977 my $flm = option ('filename-length-max');
3978 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3980 $output_rules .= &file_contents ('distdir',
3981 new Automake::Location,
3982 %transform,
3983 FILENAME_FILTER => $filename_filter);
3984 }
3987 # check_directory ($NAME, $WHERE)
3988 # -------------------------------
3989 # Ensure $NAME is a directory, and that it uses a sane name.
3990 # Use $WHERE as a location in the diagnostic, if any.
3991 sub check_directory ($$)
3992 {
3993 my ($dir, $where) = @_;
3995 error $where, "required directory $relative_dir/$dir does not exist"
3996 unless -d "$relative_dir/$dir";
3998 # If an `obj/' directory exists, BSD make will enter it before
3999 # reading `Makefile'. Hence the `Makefile' in the current directory
4000 # will not be read.
4001 #
4002 # % cat Makefile
4003 # all:
4004 # echo Hello
4005 # % cat obj/Makefile
4006 # all:
4007 # echo World
4008 # % make # GNU make
4009 # echo Hello
4010 # Hello
4011 # % pmake # BSD make
4012 # echo World
4013 # World
4014 msg ('portability', $where,
4015 "naming a subdirectory `obj' causes troubles with BSD make")
4016 if $dir eq 'obj';
4018 # `aux' is probably the most important of the following forbidden name,
4019 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4020 msg ('portability', $where,
4021 "name `$dir' is reserved on W32 and DOS platforms")
4022 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4023 }
4025 # check_directories_in_var ($VARIABLE)
4026 # ------------------------------------
4027 # Recursively check all items in variables $VARIABLE as directories
4028 sub check_directories_in_var ($)
4029 {
4030 my ($var) = @_;
4031 $var->traverse_recursively
4032 (sub
4033 {
4034 my ($var, $val, $cond, $full_cond) = @_;
4035 check_directory ($val, $var->rdef ($cond)->location);
4036 return ();
4037 },
4038 undef,
4039 skip_ac_subst => 1);
4040 }
4042 # &handle_subdirs ()
4043 # ------------------
4044 # Handle subdirectories.
4045 sub handle_subdirs ()
4046 {
4047 my $subdirs = var ('SUBDIRS');
4048 return
4049 unless $subdirs;
4051 check_directories_in_var $subdirs;
4053 my $dsubdirs = var ('DIST_SUBDIRS');
4054 check_directories_in_var $dsubdirs
4055 if $dsubdirs;
4057 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4058 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4059 }
4062 # ($REGEN, @DEPENDENCIES)
4063 # &scan_aclocal_m4
4064 # ----------------
4065 # If aclocal.m4 creation is automated, return the list of its dependencies.
4066 sub scan_aclocal_m4 ()
4067 {
4068 my $regen_aclocal = 0;
4070 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4071 set_seen 'CONFIGURE_DEPENDENCIES';
4073 if (-f 'aclocal.m4')
4074 {
4075 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4077 my $aclocal = new Automake::XFile "< aclocal.m4";
4078 my $line = $aclocal->getline;
4079 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4080 }
4082 my @ac_deps = ();
4084 if (set_seen ('ACLOCAL_M4_SOURCES'))
4085 {
4086 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4087 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4088 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4089 . "It should be safe to simply remove it.");
4090 }
4092 # Note that it might be possible that aclocal.m4 doesn't exist but
4093 # should be auto-generated. This case probably isn't very
4094 # important.
4096 return ($regen_aclocal, @ac_deps);
4097 }
4100 # Helper function for substitute_ac_subst_variables.
4101 sub substitute_ac_subst_variables_worker($)
4102 {
4103 my ($token) = @_;
4104 return "\@$token\@" if var $token;
4105 return "\${$token\}";
4106 }
4108 # substitute_ac_subst_variables ($TEXT)
4109 # -------------------------------------
4110 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4111 # variable.
4112 sub substitute_ac_subst_variables ($)
4113 {
4114 my ($text) = @_;
4115 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4116 return $text;
4117 }
4119 # @DEPENDENCIES
4120 # &prepend_srcdir (@INPUTS)
4121 # -------------------------
4122 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4123 # if an input file has a directory part the same as the current
4124 # directory, then the directory part is simply replaced by $(srcdir).
4125 # But if the directory part is different, then $(top_srcdir) is
4126 # prepended.
4127 sub prepend_srcdir (@)
4128 {
4129 my (@inputs) = @_;
4130 my @newinputs;
4132 foreach my $single (@inputs)
4133 {
4134 if (dirname ($single) eq $relative_dir)
4135 {
4136 push (@newinputs, '$(srcdir)/' . basename ($single));
4137 }
4138 else
4139 {
4140 push (@newinputs, '$(top_srcdir)/' . $single);
4141 }
4142 }
4143 return @newinputs;
4144 }
4146 # @DEPENDENCIES
4147 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4148 # ---------------------------------------------------
4149 # Compute a list of dependencies appropriate for the rebuild
4150 # rule of
4151 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4152 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOS.
4153 sub rewrite_inputs_into_dependencies ($@)
4154 {
4155 my ($file, @inputs) = @_;
4156 my @res = ();
4158 for my $i (@inputs)
4159 {
4160 # We cannot create dependencies on shell variables.
4161 next if (substitute_ac_subst_variables $i) =~ /\$/;
4163 if (exists $ac_config_files_location{$i} && $i ne $file)
4164 {
4165 my $di = dirname $i;
4166 if ($di eq $relative_dir)
4167 {
4168 $i = basename $i;
4169 }
4170 # In the top-level Makefile we do not use $(top_builddir), because
4171 # we are already there, and since the targets are built without
4172 # a $(top_builddir), it helps BSD Make to match them with
4173 # dependencies.
4174 elsif ($relative_dir ne '.')
4175 {
4176 $i = '$(top_builddir)/' . $i;
4177 }
4178 }
4179 else
4180 {
4181 msg ('error', $ac_config_files_location{$file},
4182 "required file `$i' not found")
4183 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4184 ($i) = prepend_srcdir ($i);
4185 push_dist_common ($i);
4186 }
4187 push @res, $i;
4188 }
4189 return @res;
4190 }
4194 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4195 # ------------------------------------------------------------------
4196 # Handle remaking and configure stuff.
4197 # We need the name of the input file, to do proper remaking rules.
4198 sub handle_configure ($$$@)
4199 {
4200 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4202 prog_error 'empty @inputs'
4203 unless @inputs;
4205 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4206 $makefile_in);
4207 my $rel_makefile = basename $makefile;
4209 my $colon_infile = ':' . join (':', @inputs);
4210 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4211 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4212 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4213 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4214 @configure_deps, @aclocal_m4_deps,
4215 '$(top_srcdir)/' . $configure_ac);
4216 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4217 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4218 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4219 @configuredeps);
4221 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4222 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4224 $output_rules .= file_contents
4225 ('configure',
4226 new Automake::Location,
4227 MAKEFILE => $rel_makefile,
4228 'MAKEFILE-DEPS' => "@rewritten",
4229 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4230 'MAKEFILE-IN' => $rel_makefile_in,
4231 'MAKEFILE-IN-DEPS' => "@include_stack",
4232 'MAKEFILE-AM' => $rel_makefile_am,
4233 'AUTOMAKE-OPTIONS' => $automake_options,
4234 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4235 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4236 VERBOSE => verbose_flag ('GEN'));
4238 if ($relative_dir eq '.')
4239 {
4240 &push_dist_common ('acconfig.h')
4241 if -f 'acconfig.h';
4242 }
4244 # If we have a configure header, require it.
4245 my $hdr_index = 0;
4246 my @distclean_config;
4247 foreach my $spec (@config_headers)
4248 {
4249 $hdr_index += 1;
4250 # $CONFIG_H_PATH: config.h from top level.
4251 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4252 my $config_h_dir = dirname ($config_h_path);
4254 # If the header is in the current directory we want to build
4255 # the header here. Otherwise, if we're at the topmost
4256 # directory and the header's directory doesn't have a
4257 # Makefile, then we also want to build the header.
4258 if ($relative_dir eq $config_h_dir
4259 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4260 {
4261 my ($cn_sans_dir, $stamp_dir);
4262 if ($relative_dir eq $config_h_dir)
4263 {
4264 $cn_sans_dir = basename ($config_h_path);
4265 $stamp_dir = '';
4266 }
4267 else
4268 {
4269 $cn_sans_dir = $config_h_path;
4270 if ($config_h_dir eq '.')
4271 {
4272 $stamp_dir = '';
4273 }
4274 else
4275 {
4276 $stamp_dir = $config_h_dir . '/';
4277 }
4278 }
4280 # This will also distribute all inputs.
4281 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4283 # Cannot define rebuild rules for filenames with shell variables.
4284 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4286 # Header defined in this directory.
4287 my @files;
4288 if (-f $config_h_path . '.top')
4289 {
4290 push (@files, "$cn_sans_dir.top");
4291 }
4292 if (-f $config_h_path . '.bot')
4293 {
4294 push (@files, "$cn_sans_dir.bot");
4295 }
4297 push_dist_common (@files);
4299 # For now, acconfig.h can only appear in the top srcdir.
4300 if (-f 'acconfig.h')
4301 {
4302 push (@files, '$(top_srcdir)/acconfig.h');
4303 }
4305 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4306 $output_rules .=
4307 file_contents ('remake-hdr',
4308 new Automake::Location,
4309 FILES => "@files",
4310 CONFIG_H => $cn_sans_dir,
4311 CONFIG_HIN => $ins[0],
4312 CONFIG_H_DEPS => "@ins",
4313 CONFIG_H_PATH => $config_h_path,
4314 STAMP => "$stamp");
4316 push @distclean_config, $cn_sans_dir, $stamp;
4317 }
4318 }
4320 $output_rules .= file_contents ('clean-hdr',
4321 new Automake::Location,
4322 FILES => "@distclean_config")
4323 if @distclean_config;
4325 # Distribute and define mkinstalldirs only if it is already present
4326 # in the package, for backward compatibility (some people may still
4327 # use $(mkinstalldirs)).
4328 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4329 if (-f $mkidpath)
4330 {
4331 # Use require_file so that any existing script gets updated
4332 # by --force-missing.
4333 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4334 define_variable ('mkinstalldirs',
4335 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4336 }
4337 else
4338 {
4339 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4340 # at least one argument, and $(mkinstalldirs) used to work
4341 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4342 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4343 }
4345 reject_var ('CONFIG_HEADER',
4346 "`CONFIG_HEADER' is an anachronism; now determined "
4347 . "automatically\nfrom `$configure_ac'");
4349 my @config_h;
4350 foreach my $spec (@config_headers)
4351 {
4352 my ($out, @ins) = split_config_file_spec ($spec);
4353 # Generate CONFIG_HEADER define.
4354 if ($relative_dir eq dirname ($out))
4355 {
4356 push @config_h, basename ($out);
4357 }
4358 else
4359 {
4360 push @config_h, "\$(top_builddir)/$out";
4361 }
4362 }
4363 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4364 if @config_h;
4366 # Now look for other files in this directory which must be remade
4367 # by config.status, and generate rules for them.
4368 my @actual_other_files = ();
4369 # These get cleaned only in a VPATH build.
4370 my @actual_other_vpath_files = ();
4371 foreach my $lfile (@other_input_files)
4372 {
4373 my $file;
4374 my @inputs;
4375 if ($lfile =~ /^([^:]*):(.*)$/)
4376 {
4377 # This is the ":" syntax of AC_OUTPUT.
4378 $file = $1;
4379 @inputs = split (':', $2);
4380 }
4381 else
4382 {
4383 # Normal usage.
4384 $file = $lfile;
4385 @inputs = $file . '.in';
4386 }
4388 # Automake files should not be stored in here, but in %MAKE_LIST.
4389 prog_error ("$lfile in \@other_input_files\n"
4390 . "\@other_input_files = (@other_input_files)")
4391 if -f $file . '.am';
4393 my $local = basename ($file);
4395 # We skip files that aren't in this directory. However, if
4396 # the file's directory does not have a Makefile, and we are
4397 # currently doing `.', then we create a rule to rebuild the
4398 # file in the subdir.
4399 my $fd = dirname ($file);
4400 if ($fd ne $relative_dir)
4401 {
4402 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4403 {
4404 $local = $file;
4405 }
4406 else
4407 {
4408 next;
4409 }
4410 }
4412 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4414 # Cannot output rules for shell variables.
4415 next if (substitute_ac_subst_variables $local) =~ /\$/;
4417 my $condstr = '';
4418 my $cond = $ac_config_files_condition{$lfile};
4419 if (defined $cond)
4420 {
4421 $condstr = $cond->subst_string;
4422 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4423 $ac_config_files_location{$file});
4424 }
4425 $output_rules .= ($condstr . $local . ': '
4426 . '$(top_builddir)/config.status '
4427 . "@rewritten_inputs\n"
4428 . $condstr . "\t"
4429 . 'cd $(top_builddir) && '
4430 . '$(SHELL) ./config.status '
4431 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4432 . '$@'
4433 . "\n");
4434 push (@actual_other_files, $local);
4435 }
4437 # For links we should clean destinations and distribute sources.
4438 foreach my $spec (@config_links)
4439 {
4440 my ($link, $file) = split /:/, $spec;
4441 # Some people do AC_CONFIG_LINKS($computed). We only handle
4442 # the DEST:SRC form.
4443 next unless $file;
4444 my $where = $ac_config_files_location{$link};
4446 # Skip destinations that contain shell variables.
4447 if ((substitute_ac_subst_variables $link) !~ /\$/)
4448 {
4449 # We skip links that aren't in this directory. However, if
4450 # the link's directory does not have a Makefile, and we are
4451 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4452 # in `.'s Makefile.in.
4453 my $local = basename ($link);
4454 my $fd = dirname ($link);
4455 if ($fd ne $relative_dir)
4456 {
4457 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4458 {
4459 $local = $link;
4460 }
4461 else
4462 {
4463 $local = undef;
4464 }
4465 }
4466 if ($file ne $link)
4467 {
4468 push @actual_other_files, $local if $local;
4469 }
4470 else
4471 {
4472 push @actual_other_vpath_files, $local if $local;
4473 }
4474 }
4476 # Do not process sources that contain shell variables.
4477 if ((substitute_ac_subst_variables $file) !~ /\$/)
4478 {
4479 my $fd = dirname ($file);
4481 # We distribute files that are in this directory.
4482 # At the top-level (`.') we also distribute files whose
4483 # directory does not have a Makefile.
4484 if (($fd eq $relative_dir)
4485 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4486 {
4487 # The following will distribute $file as a side-effect when
4488 # it is appropriate (i.e., when $file is not already an output).
4489 # We do not need the result, just the side-effect.
4490 rewrite_inputs_into_dependencies ($link, $file);
4491 }
4492 }
4493 }
4495 # These files get removed by "make distclean".
4496 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4497 @actual_other_files);
4498 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4499 @actual_other_vpath_files);
4500 }
4502 # Handle C headers.
4503 sub handle_headers
4504 {
4505 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4506 'oldinclude', 'pkginclude',
4507 'noinst', 'check');
4508 foreach (@r)
4509 {
4510 next unless $_->[1] =~ /\..*$/;
4511 &saw_extension ($&);
4512 }
4513 }
4515 sub handle_gettext
4516 {
4517 return if ! $seen_gettext || $relative_dir ne '.';
4519 my $subdirs = var 'SUBDIRS';
4521 if (! $subdirs)
4522 {
4523 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4524 return;
4525 }
4527 # Perform some sanity checks to help users get the right setup.
4528 # We disable these tests when po/ doesn't exist in order not to disallow
4529 # unusual gettext setups.
4530 #
4531 # Bruno Haible:
4532 # | The idea is:
4533 # |
4534 # | 1) If a package doesn't have a directory po/ at top level, it
4535 # | will likely have multiple po/ directories in subpackages.
4536 # |
4537 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4538 # | is used without 'external'. It is also useful to warn for the
4539 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4540 # | warnings apply only to the usual layout of packages, therefore
4541 # | they should both be disabled if no po/ directory is found at
4542 # | top level.
4544 if (-d 'po')
4545 {
4546 my @subdirs = $subdirs->value_as_list_recursive;
4548 msg_var ('syntax', $subdirs,
4549 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4550 if ! grep ($_ eq 'po', @subdirs);
4552 # intl/ is not required when AM_GNU_GETTEXT is called with the
4553 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4554 msg_var ('syntax', $subdirs,
4555 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4556 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4557 && ! grep ($_ eq 'intl', @subdirs));
4559 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4560 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4561 msg_var ('syntax', $subdirs,
4562 "`intl' should not be in SUBDIRS when "
4563 . "AM_GNU_GETTEXT([external]) is used")
4564 if ($seen_gettext_external && ! $seen_gettext_intl
4565 && grep ($_ eq 'intl', @subdirs));
4566 }
4568 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4569 }
4571 # Handle footer elements.
4572 sub handle_footer
4573 {
4574 reject_rule ('.SUFFIXES',
4575 "use variable `SUFFIXES', not target `.SUFFIXES'");
4577 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4578 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4579 # anything else, by sticking it right after the default: target.
4580 $output_header .= ".SUFFIXES:\n";
4581 my $suffixes = var 'SUFFIXES';
4582 my @suffixes = Automake::Rule::suffixes;
4583 if (@suffixes || $suffixes)
4584 {
4585 # Make sure SUFFIXES has unique elements. Sort them to ensure
4586 # the output remains consistent. However, $(SUFFIXES) is
4587 # always at the start of the list, unsorted. This is done
4588 # because make will choose rules depending on the ordering of
4589 # suffixes, and this lets the user have some control. Push
4590 # actual suffixes, and not $(SUFFIXES). Some versions of make
4591 # do not like variable substitutions on the .SUFFIXES line.
4592 my @user_suffixes = ($suffixes
4593 ? $suffixes->value_as_list_recursive : ());
4595 my %suffixes = map { $_ => 1 } @suffixes;
4596 delete @suffixes{@user_suffixes};
4598 $output_header .= (".SUFFIXES: "
4599 . join (' ', @user_suffixes, sort keys %suffixes)
4600 . "\n");
4601 }
4603 $output_trailer .= file_contents ('footer', new Automake::Location);
4604 }
4607 # Generate `make install' rules.
4608 sub handle_install ()
4609 {
4610 $output_rules .= &file_contents
4611 ('install',
4612 new Automake::Location,
4613 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4614 ? (" \$(BUILT_SOURCES)\n"
4615 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4616 : ''),
4617 'installdirs-local' => (user_phony_rule 'installdirs-local'
4618 ? ' installdirs-local' : ''),
4619 am__installdirs => variable_value ('am__installdirs') || '');
4620 }
4623 # Deal with all and all-am.
4624 sub handle_all ($)
4625 {
4626 my ($makefile) = @_;
4628 # Output `all-am'.
4630 # Put this at the beginning for the sake of non-GNU makes. This
4631 # is still wrong if these makes can run parallel jobs. But it is
4632 # right enough.
4633 unshift (@all, basename ($makefile));
4635 foreach my $spec (@config_headers)
4636 {
4637 my ($out, @ins) = split_config_file_spec ($spec);
4638 push (@all, basename ($out))
4639 if dirname ($out) eq $relative_dir;
4640 }
4642 # Install `all' hooks.
4643 push (@all, "all-local")
4644 if user_phony_rule "all-local";
4646 &pretty_print_rule ("all-am:", "\t\t", @all);
4647 &depend ('.PHONY', 'all-am', 'all');
4650 # Output `all'.
4652 my @local_headers = ();
4653 push @local_headers, '$(BUILT_SOURCES)'
4654 if var ('BUILT_SOURCES');
4655 foreach my $spec (@config_headers)
4656 {
4657 my ($out, @ins) = split_config_file_spec ($spec);
4658 push @local_headers, basename ($out)
4659 if dirname ($out) eq $relative_dir;
4660 }
4662 if (@local_headers)
4663 {
4664 # We need to make sure config.h is built before we recurse.
4665 # We also want to make sure that built sources are built
4666 # before any ordinary `all' targets are run. We can't do this
4667 # by changing the order of dependencies to the "all" because
4668 # that breaks when using parallel makes. Instead we handle
4669 # things explicitly.
4670 $output_all .= ("all: @local_headers"
4671 . "\n\t"
4672 . '$(MAKE) $(AM_MAKEFLAGS) '
4673 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4674 . "\n\n");
4675 depend ('.MAKE', 'all');
4676 }
4677 else
4678 {
4679 $output_all .= "all: " . (var ('SUBDIRS')
4680 ? 'all-recursive' : 'all-am') . "\n\n";
4681 }
4682 }
4685 # &do_check_merge_target ()
4686 # -------------------------
4687 # Handle check merge target specially.
4688 sub do_check_merge_target ()
4689 {
4690 # Include user-defined local form of target.
4691 push @check_tests, 'check-local'
4692 if user_phony_rule 'check-local';
4694 # In --cygnus mode, check doesn't depend on all.
4695 if (option 'cygnus')
4696 {
4697 # Just run the local check rules.
4698 pretty_print_rule ('check-am:', "\t\t", @check);
4699 }
4700 else
4701 {
4702 # The check target must depend on the local equivalent of
4703 # `all', to ensure all the primary targets are built. Then it
4704 # must build the local check rules.
4705 $output_rules .= "check-am: all-am\n";
4706 if (@check)
4707 {
4708 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4709 @check);
4710 depend ('.MAKE', 'check-am');
4711 }
4712 }
4713 if (@check_tests)
4714 {
4715 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4716 @check_tests);
4717 depend ('.MAKE', 'check-am');
4718 }
4720 depend '.PHONY', 'check', 'check-am';
4721 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4722 $output_rules .= ("check: "
4723 . (var ('BUILT_SOURCES')
4724 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4725 : '')
4726 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4727 . "\n");
4728 depend ('.MAKE', 'check')
4729 if var ('BUILT_SOURCES');
4730 }
4732 # handle_clean ($MAKEFILE)
4733 # ------------------------
4734 # Handle all 'clean' targets.
4735 sub handle_clean ($)
4736 {
4737 my ($makefile) = @_;
4739 # Clean the files listed in user variables if they exist.
4740 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4741 if var ('MOSTLYCLEANFILES');
4742 $clean_files{'$(CLEANFILES)'} = CLEAN
4743 if var ('CLEANFILES');
4744 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4745 if var ('DISTCLEANFILES');
4746 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4747 if var ('MAINTAINERCLEANFILES');
4749 # Built sources are automatically removed by maintainer-clean.
4750 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4751 if var ('BUILT_SOURCES');
4753 # Compute a list of "rm"s to run for each target.
4754 my %rms = (MOSTLY_CLEAN, [],
4755 CLEAN, [],
4756 DIST_CLEAN, [],
4757 MAINTAINER_CLEAN, []);
4759 foreach my $file (keys %clean_files)
4760 {
4761 my $when = $clean_files{$file};
4762 prog_error 'invalid entry in %clean_files'
4763 unless exists $rms{$when};
4765 my $rm = "rm -f $file";
4766 # If file is a variable, make sure when don't call `rm -f' without args.
4767 $rm ="test -z \"$file\" || $rm"
4768 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4770 push @{$rms{$when}}, "\t-$rm\n";
4771 }
4773 $output_rules .= &file_contents
4774 ('clean',
4775 new Automake::Location,
4776 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4777 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4778 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4779 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4780 MAKEFILE => basename $makefile,
4781 );
4782 }
4785 # &target_cmp ($A, $B)
4786 # --------------------
4787 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4788 # other `.TARGETS' be last.
4789 sub target_cmp
4790 {
4791 return 0 if $a eq $b;
4793 my $a1 = substr ($a, 0, 1);
4794 my $b1 = substr ($b, 0, 1);
4795 if ($a1 ne $b1)
4796 {
4797 return -1 if $b1 eq '.';
4798 return 1 if $a1 eq '.';
4799 }
4800 return $a cmp $b;
4801 }
4804 # &handle_factored_dependencies ()
4805 # --------------------------------
4806 # Handle everything related to gathered targets.
4807 sub handle_factored_dependencies
4808 {
4809 # Reject bad hooks.
4810 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4811 'uninstall-exec-local', 'uninstall-exec-hook',
4812 'uninstall-dvi-local',
4813 'uninstall-html-local',
4814 'uninstall-info-local',
4815 'uninstall-pdf-local',
4816 'uninstall-ps-local')
4817 {
4818 my $x = $utarg;
4819 $x =~ s/-.*-/-/;
4820 reject_rule ($utarg, "use `$x', not `$utarg'");
4821 }
4823 reject_rule ('install-local',
4824 "use `install-data-local' or `install-exec-local', "
4825 . "not `install-local'");
4827 reject_rule ('install-hook',
4828 "use `install-data-hook' or `install-exec-hook', "
4829 . "not `install-hook'");
4831 # Install the -local hooks.
4832 foreach (keys %dependencies)
4833 {
4834 # Hooks are installed on the -am targets.
4835 s/-am$// or next;
4836 depend ("$_-am", "$_-local")
4837 if user_phony_rule "$_-local";
4838 }
4840 # Install the -hook hooks.
4841 # FIXME: Why not be as liberal as we are with -local hooks?
4842 foreach ('install-exec', 'install-data', 'uninstall')
4843 {
4844 if (user_phony_rule "$_-hook")
4845 {
4846 depend ('.MAKE', "$_-am");
4847 register_action("$_-am",
4848 ("\t\@\$(NORMAL_INSTALL)\n"
4849 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4850 }
4851 }
4853 # All the required targets are phony.
4854 depend ('.PHONY', keys %required_targets);
4856 # Actually output gathered targets.
4857 foreach (sort target_cmp keys %dependencies)
4858 {
4859 # If there is nothing about this guy, skip it.
4860 next
4861 unless (@{$dependencies{$_}}
4862 || $actions{$_}
4863 || $required_targets{$_});
4865 # Define gathered targets in undefined conditions.
4866 # FIXME: Right now we must handle .PHONY as an exception,
4867 # because people write things like
4868 # .PHONY: myphonytarget
4869 # to append dependencies. This would not work if Automake
4870 # refrained from defining its own .PHONY target as it does
4871 # with other overridden targets.
4872 # Likewise for `.MAKE'.
4873 my @undefined_conds = (TRUE,);
4874 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4875 {
4876 @undefined_conds =
4877 Automake::Rule::define ($_, 'internal',
4878 RULE_AUTOMAKE, TRUE, INTERNAL);
4879 }
4880 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4881 foreach my $cond (@undefined_conds)
4882 {
4883 my $condstr = $cond->subst_string;
4884 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4885 $output_rules .= $actions{$_} if defined $actions{$_};
4886 $output_rules .= "\n";
4887 }
4888 }
4889 }
4892 # &handle_tests_dejagnu ()
4893 # ------------------------
4894 sub handle_tests_dejagnu
4895 {
4896 push (@check_tests, 'check-DEJAGNU');
4897 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4898 }
4901 # Handle TESTS variable and other checks.
4902 sub handle_tests
4903 {
4904 if (option 'dejagnu')
4905 {
4906 &handle_tests_dejagnu;
4907 }
4908 else
4909 {
4910 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4911 {
4912 reject_var ($c, "`$c' defined but `dejagnu' not in "
4913 . "`AUTOMAKE_OPTIONS'");
4914 }
4915 }
4917 if (var ('TESTS'))
4918 {
4919 push (@check_tests, 'check-TESTS');
4920 $output_rules .= &file_contents ('check', new Automake::Location,
4921 COLOR => !! option 'color-tests',
4922 PARALLEL_TESTS => !! option 'parallel-tests');
4924 # Tests that are known programs should have $(EXEEXT) appended.
4925 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4926 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4927 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4928 if (var ('XFAIL_TESTS'));
4930 if (option 'parallel-tests')
4931 {
4932 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4933 define_variable ('TEST_SUITE_HTML', '$(TEST_SUITE_LOG:.log=.html)', INTERNAL);
4934 my $suff = '.test';
4935 my $at_exeext = '';
4936 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4937 if ($handle_exeext)
4938 {
4939 $at_exeext = subst ('EXEEXT');
4940 $suff = $at_exeext . ' ' . $suff;
4941 }
4942 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4943 # FIXME: this mishandles conditions.
4944 my @test_suffixes = (var 'TEST_EXTENSIONS')->value_as_list_recursive;
4945 if ($handle_exeext)
4946 {
4947 unshift (@test_suffixes, $at_exeext)
4948 unless $test_suffixes[0] eq $at_exeext;
4949 }
4950 unshift (@test_suffixes, '');
4952 transform_variable_recursively
4953 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4954 sub {
4955 my ($subvar, $val, $cond, $full_cond) = @_;
4956 my $obj = $val;
4957 return $obj
4958 if $val =~ /^\@.*\@$/;
4959 $obj =~ s/\$\(EXEEXT\)$//o;
4961 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4962 {
4963 msg ('error', $subvar->rdef ($cond)->location,
4964 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
4965 }
4967 foreach my $test_suffix (@test_suffixes)
4968 {
4969 next
4970 if $test_suffix eq $at_exeext || $test_suffix eq '';
4971 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4972 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4973 }
4974 $obj .= '.log';
4975 my $compile = 'LOG_COMPILE';
4976 define_variable ($compile,
4977 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
4978 $output_rules .= file_contents ('check2', new Automake::Location,
4979 GENERIC => 0,
4980 OBJ => $obj,
4981 SOURCE => $val,
4982 COMPILE =>'$(' . $compile . ')',
4983 EXT => '',
4984 am__EXEEXT => 'FALSE');
4985 return $obj;
4986 });
4988 my $nhelper=1;
4989 my $prev = 'TESTS';
4990 my $post = '';
4991 my $last_suffix = $test_suffixes[$#test_suffixes];
4992 my $cur = '';
4993 foreach my $test_suffix (@test_suffixes)
4994 {
4995 if ($test_suffix eq $last_suffix)
4996 {
4997 $cur = 'TEST_LOGS';
4998 }
4999 else
5000 {
5001 $cur = 'am__test_logs' . $nhelper;
5002 }
5003 define_variable ($cur,
5004 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5005 $post = '.log';
5006 $prev = $cur;
5007 $nhelper++;
5008 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5009 {
5010 (my $ext = $test_suffix) =~ s/^\.//;
5011 $ext = uc $ext;
5012 my $compile = $ext . '_LOG_COMPILE';
5013 define_variable ($compile,
5014 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5015 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5016 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5017 $output_rules .= file_contents ('check2', new Automake::Location,
5018 GENERIC => 1,
5019 OBJ => '',
5020 SOURCE => '$<',
5021 COMPILE => '$(' . $compile . ')',
5022 EXT => $test_suffix,
5023 am__EXEEXT => $am_exeext);
5024 }
5025 }
5027 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5029 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5030 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5031 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5032 $clean_files{'$(TEST_SUITE_HTML)'} = MOSTLY_CLEAN;
5033 }
5034 }
5035 }
5037 # Handle Emacs Lisp.
5038 sub handle_emacs_lisp
5039 {
5040 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5041 'lisp', 'noinst');
5043 return if ! @elfiles;
5045 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5046 map { $_->[1] } @elfiles);
5047 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5048 '$(am__ELFILES:.el=.elc)');
5049 # This one can be overridden by users.
5050 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5052 push @all, '$(ELCFILES)';
5054 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5055 'EMACS', 'lispdir');
5056 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5057 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5058 }
5060 # Handle Python
5061 sub handle_python
5062 {
5063 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5064 'noinst');
5065 return if ! @pyfiles;
5067 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5068 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5069 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5070 }
5072 # Handle Java.
5073 sub handle_java
5074 {
5075 my @sourcelist = &am_install_var ('-candist',
5076 'java', 'JAVA',
5077 'java', 'noinst', 'check');
5078 return if ! @sourcelist;
5080 my @prefix = am_primary_prefixes ('JAVA', 1,
5081 'java', 'noinst', 'check');
5083 my $dir;
5084 foreach my $curs (@prefix)
5085 {
5086 next
5087 if $curs eq 'EXTRA';
5089 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5090 if defined $dir;
5091 $dir = $curs;
5092 }
5095 push (@all, 'class' . $dir . '.stamp');
5096 }
5099 # Handle some of the minor options.
5100 sub handle_minor_options
5101 {
5102 if (option 'readme-alpha')
5103 {
5104 if ($relative_dir eq '.')
5105 {
5106 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5107 {
5108 msg ('error-gnits', $package_version_location,
5109 "version `$package_version' doesn't follow " .
5110 "Gnits standards");
5111 }
5112 if (defined $1 && -f 'README-alpha')
5113 {
5114 # This means we have an alpha release. See
5115 # GNITS_VERSION_PATTERN for details.
5116 push_dist_common ('README-alpha');
5117 }
5118 }
5119 }
5120 }
5122 ################################################################
5124 # ($OUTPUT, @INPUTS)
5125 # &split_config_file_spec ($SPEC)
5126 # -------------------------------
5127 # Decode the Autoconf syntax for config files (files, headers, links
5128 # etc.).
5129 sub split_config_file_spec ($)
5130 {
5131 my ($spec) = @_;
5132 my ($output, @inputs) = split (/:/, $spec);
5134 push @inputs, "$output.in"
5135 unless @inputs;
5137 return ($output, @inputs);
5138 }
5140 # $input
5141 # locate_am (@POSSIBLE_SOURCES)
5142 # -----------------------------
5143 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5144 # This functions returns the first *.in file for which a *.am exists.
5145 # It returns undef otherwise.
5146 sub locate_am (@)
5147 {
5148 my (@rest) = @_;
5149 my $input;
5150 foreach my $file (@rest)
5151 {
5152 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5153 {
5154 $input = $file;
5155 last;
5156 }
5157 }
5158 return $input;
5159 }
5161 my %make_list;
5163 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5164 # ---------------------------------------------------
5165 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5166 # (or AC_OUTPUT).
5167 sub scan_autoconf_config_files ($$)
5168 {
5169 my ($where, $config_files) = @_;
5171 # Look at potential Makefile.am's.
5172 foreach (split ' ', $config_files)
5173 {
5174 # Must skip empty string for Perl 4.
5175 next if $_ eq "\\" || $_ eq '';
5177 # Handle $local:$input syntax.
5178 my ($local, @rest) = split (/:/);
5179 @rest = ("$local.in",) unless @rest;
5180 msg ('portability', $where,
5181 "Omit leading `./' from config file names such as `$local',"
5182 . "\nas not all make implementations treat `file' and `./file' equally.")
5183 if ($local =~ /^\.\//);
5184 my $input = locate_am @rest;
5185 if ($input)
5186 {
5187 # We have a file that automake should generate.
5188 $make_list{$input} = join (':', ($local, @rest));
5189 }
5190 else
5191 {
5192 # We have a file that automake should cause to be
5193 # rebuilt, but shouldn't generate itself.
5194 push (@other_input_files, $_);
5195 }
5196 $ac_config_files_location{$local} = $where;
5197 $ac_config_files_condition{$local} =
5198 new Automake::Condition (@cond_stack)
5199 if (@cond_stack);
5200 }
5201 }
5204 # &scan_autoconf_traces ($FILENAME)
5205 # ---------------------------------
5206 sub scan_autoconf_traces ($)
5207 {
5208 my ($filename) = @_;
5210 # Macros to trace, with their minimal number of arguments.
5211 #
5212 # IMPORTANT: If you add a macro here, you should also add this macro
5213 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5214 my %traced = (
5215 AC_CANONICAL_BUILD => 0,
5216 AC_CANONICAL_HOST => 0,
5217 AC_CANONICAL_TARGET => 0,
5218 AC_CONFIG_AUX_DIR => 1,
5219 AC_CONFIG_FILES => 1,
5220 AC_CONFIG_HEADERS => 1,
5221 AC_CONFIG_LIBOBJ_DIR => 1,
5222 AC_CONFIG_LINKS => 1,
5223 AC_FC_SRCEXT => 1,
5224 AC_INIT => 0,
5225 AC_LIBSOURCE => 1,
5226 AC_REQUIRE_AUX_FILE => 1,
5227 AC_SUBST_TRACE => 1,
5228 AM_AUTOMAKE_VERSION => 1,
5229 AM_CONDITIONAL => 2,
5230 AM_ENABLE_MULTILIB => 0,
5231 AM_GNU_GETTEXT => 0,
5232 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5233 AM_INIT_AUTOMAKE => 0,
5234 AM_MAINTAINER_MODE => 0,
5235 AM_PROG_CC_C_O => 0,
5236 AM_SILENT_RULES => 0,
5237 _AM_SUBST_NOTMAKE => 1,
5238 _AM_COND_IF => 1,
5239 _AM_COND_ELSE => 1,
5240 _AM_COND_ENDIF => 1,
5241 LT_SUPPORTED_TAG => 1,
5242 _LT_AC_TAGCONFIG => 0,
5243 m4_include => 1,
5244 m4_sinclude => 1,
5245 sinclude => 1,
5246 );
5248 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
5250 # Use a separator unlikely to be used, not `:', the default, which
5251 # has a precise meaning for AC_CONFIG_FILES and so on.
5252 $traces .= join (' ',
5253 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5254 (keys %traced));
5256 my $tracefh = new Automake::XFile ("$traces $filename |");
5257 verb "reading $traces";
5259 @cond_stack = ();
5260 my $where;
5262 while ($_ = $tracefh->getline)
5263 {
5264 chomp;
5265 my ($here, $depth, @args) = split (/::/);
5266 $where = new Automake::Location $here;
5267 my $macro = $args[0];
5269 prog_error ("unrequested trace `$macro'")
5270 unless exists $traced{$macro};
5272 # Skip and diagnose malformed calls.
5273 if ($#args < $traced{$macro})
5274 {
5275 msg ('syntax', $where, "not enough arguments for $macro");
5276 next;
5277 }
5279 # Alphabetical ordering please.
5280 if ($macro eq 'AC_CANONICAL_BUILD')
5281 {
5282 if ($seen_canonical <= AC_CANONICAL_BUILD)
5283 {
5284 $seen_canonical = AC_CANONICAL_BUILD;
5285 $canonical_location = $where;
5286 }
5287 }
5288 elsif ($macro eq 'AC_CANONICAL_HOST')
5289 {
5290 if ($seen_canonical <= AC_CANONICAL_HOST)
5291 {
5292 $seen_canonical = AC_CANONICAL_HOST;
5293 $canonical_location = $where;
5294 }
5295 }
5296 elsif ($macro eq 'AC_CANONICAL_TARGET')
5297 {
5298 $seen_canonical = AC_CANONICAL_TARGET;
5299 $canonical_location = $where;
5300 }
5301 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5302 {
5303 if ($seen_init_automake)
5304 {
5305 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5306 . "AM_INIT_AUTOMAKE...", partial => 1);
5307 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5308 }
5309 $config_aux_dir = $args[1];
5310 $config_aux_dir_set_in_configure_ac = 1;
5311 $relative_dir = '.';
5312 check_directory ($config_aux_dir, $where);
5313 }
5314 elsif ($macro eq 'AC_CONFIG_FILES')
5315 {
5316 # Look at potential Makefile.am's.
5317 scan_autoconf_config_files ($where, $args[1]);
5318 }
5319 elsif ($macro eq 'AC_CONFIG_HEADERS')
5320 {
5321 foreach my $spec (split (' ', $args[1]))
5322 {
5323 my ($dest, @src) = split (':', $spec);
5324 $ac_config_files_location{$dest} = $where;
5325 push @config_headers, $spec;
5326 }
5327 }
5328 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5329 {
5330 $config_libobj_dir = $args[1];
5331 $relative_dir = '.';
5332 check_directory ($config_libobj_dir, $where);
5333 }
5334 elsif ($macro eq 'AC_CONFIG_LINKS')
5335 {
5336 foreach my $spec (split (' ', $args[1]))
5337 {
5338 my ($dest, $src) = split (':', $spec);
5339 $ac_config_files_location{$dest} = $where;
5340 push @config_links, $spec;
5341 }
5342 }
5343 elsif ($macro eq 'AC_FC_SRCEXT')
5344 {
5345 my $suffix = $args[1];
5346 # These flags are used as %SOURCEFLAG% in depend2.am,
5347 # where the trailing space is important.
5348 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5349 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5350 }
5351 elsif ($macro eq 'AC_INIT')
5352 {
5353 if (defined $args[2])
5354 {
5355 $package_version = $args[2];
5356 $package_version_location = $where;
5357 }
5358 }
5359 elsif ($macro eq 'AC_LIBSOURCE')
5360 {
5361 $libsources{$args[1]} = $here;
5362 }
5363 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5364 {
5365 # Only remember the first time a file is required.
5366 $required_aux_file{$args[1]} = $where
5367 unless exists $required_aux_file{$args[1]};
5368 }
5369 elsif ($macro eq 'AC_SUBST_TRACE')
5370 {
5371 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5372 # AC_SUBST(5), then too bad.
5373 $configure_vars{$args[1]} = $where
5374 if $args[1] =~ /^\w+$/;
5375 }
5376 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5377 {
5378 error ($where,
5379 "version mismatch. This is Automake $VERSION,\n" .
5380 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5381 "comes from Automake $args[1]. You should recreate\n" .
5382 "aclocal.m4 with aclocal and run automake again.\n",
5383 # $? = 63 is used to indicate version mismatch to missing.
5384 exit_code => 63)
5385 if $VERSION ne $args[1];
5387 $seen_automake_version = 1;
5388 }
5389 elsif ($macro eq 'AM_CONDITIONAL')
5390 {
5391 $configure_cond{$args[1]} = $where;
5392 }
5393 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5394 {
5395 $seen_multilib = $where;
5396 }
5397 elsif ($macro eq 'AM_GNU_GETTEXT')
5398 {
5399 $seen_gettext = $where;
5400 $ac_gettext_location = $where;
5401 $seen_gettext_external = grep ($_ eq 'external', @args);
5402 }
5403 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5404 {
5405 $seen_gettext_intl = $where;
5406 }
5407 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5408 {
5409 $seen_init_automake = $where;
5410 if (defined $args[2])
5411 {
5412 $package_version = $args[2];
5413 $package_version_location = $where;
5414 }
5415 elsif (defined $args[1])
5416 {
5417 exit $exit_code
5418 if (process_global_option_list ($where,
5419 split (' ', $args[1])));
5420 }
5421 }
5422 elsif ($macro eq 'AM_MAINTAINER_MODE')
5423 {
5424 $seen_maint_mode = $where;
5425 }
5426 elsif ($macro eq 'AM_PROG_CC_C_O')
5427 {
5428 $seen_cc_c_o = $where;
5429 }
5430 elsif ($macro eq 'AM_SILENT_RULES')
5431 {
5432 set_global_option ('silent-rules', $where);
5433 }
5434 elsif ($macro eq '_AM_COND_IF')
5435 {
5436 cond_stack_if ('', $args[1], $where);
5437 error ($where, "missing m4 quoting, macro depth $depth")
5438 if ($depth != 1);
5439 }
5440 elsif ($macro eq '_AM_COND_ELSE')
5441 {
5442 cond_stack_else ('!', $args[1], $where);
5443 error ($where, "missing m4 quoting, macro depth $depth")
5444 if ($depth != 1);
5445 }
5446 elsif ($macro eq '_AM_COND_ENDIF')
5447 {
5448 cond_stack_endif (undef, undef, $where);
5449 error ($where, "missing m4 quoting, macro depth $depth")
5450 if ($depth != 1);
5451 }
5452 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5453 {
5454 $ignored_configure_vars{$args[1]} = $where;
5455 }
5456 elsif ($macro eq 'm4_include'
5457 || $macro eq 'm4_sinclude'
5458 || $macro eq 'sinclude')
5459 {
5460 # Skip missing `sinclude'd files.
5461 next if $macro ne 'm4_include' && ! -f $args[1];
5463 # Some modified versions of Autoconf don't use
5464 # frozen files. Consequently it's possible that we see all
5465 # m4_include's performed during Autoconf's startup.
5466 # Obviously we don't want to distribute Autoconf's files
5467 # so we skip absolute filenames here.
5468 push @configure_deps, '$(top_srcdir)/' . $args[1]
5469 unless $here =~ m,^(?:\w:)?[\\/],;
5470 # Keep track of the greatest timestamp.
5471 if (-e $args[1])
5472 {
5473 my $mtime = mtime $args[1];
5474 $configure_deps_greatest_timestamp = $mtime
5475 if $mtime > $configure_deps_greatest_timestamp;
5476 }
5477 }
5478 elsif ($macro eq 'LT_SUPPORTED_TAG')
5479 {
5480 $libtool_tags{$args[1]} = 1;
5481 $libtool_new_api = 1;
5482 }
5483 elsif ($macro eq '_LT_AC_TAGCONFIG')
5484 {
5485 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5486 # We use it to detect whether tags are supported. Our
5487 # preferred interface is LT_SUPPORTED_TAG, but it was
5488 # introduced in Libtool 1.6.
5489 if (0 == keys %libtool_tags)
5490 {
5491 # Hardcode the tags supported by Libtool 1.5.
5492 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5493 }
5494 }
5495 }
5497 error ($where, "condition stack not properly closed")
5498 if (@cond_stack);
5500 $tracefh->close;
5501 }
5504 # &scan_autoconf_files ()
5505 # -----------------------
5506 # Check whether we use `configure.ac' or `configure.in'.
5507 # Scan it (and possibly `aclocal.m4') for interesting things.
5508 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5509 sub scan_autoconf_files ()
5510 {
5511 # Reinitialize libsources here. This isn't really necessary,
5512 # since we currently assume there is only one configure.ac. But
5513 # that won't always be the case.
5514 %libsources = ();
5516 # Keep track of the youngest configure dependency.
5517 $configure_deps_greatest_timestamp = mtime $configure_ac;
5518 if (-e 'aclocal.m4')
5519 {
5520 my $mtime = mtime 'aclocal.m4';
5521 $configure_deps_greatest_timestamp = $mtime
5522 if $mtime > $configure_deps_greatest_timestamp;
5523 }
5525 scan_autoconf_traces ($configure_ac);
5527 @configure_input_files = sort keys %make_list;
5528 # Set input and output files if not specified by user.
5529 if (! @input_files)
5530 {
5531 @input_files = @configure_input_files;
5532 %output_files = %make_list;
5533 }
5536 if (! $seen_init_automake)
5537 {
5538 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5539 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5540 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5541 . "and that aclocal.m4 was recently regenerated "
5542 . "(using aclocal).");
5543 }
5544 else
5545 {
5546 if (! $seen_automake_version)
5547 {
5548 if (-f 'aclocal.m4')
5549 {
5550 error ($seen_init_automake,
5551 "your implementation of AM_INIT_AUTOMAKE comes from " .
5552 "an\nold Automake version. You should recreate " .
5553 "aclocal.m4\nwith aclocal and run automake again.\n",
5554 # $? = 63 is used to indicate version mismatch to missing.
5555 exit_code => 63);
5556 }
5557 else
5558 {
5559 error ($seen_init_automake,
5560 "no proper implementation of AM_INIT_AUTOMAKE was " .
5561 "found,\nprobably because aclocal.m4 is missing...\n" .
5562 "You should run aclocal to create this file, then\n" .
5563 "run automake again.\n");
5564 }
5565 }
5566 }
5568 locate_aux_dir ();
5570 # Reorder @input_files so that the Makefile that distributes aux
5571 # files is processed last. This is important because each directory
5572 # can require auxiliary scripts and we should wait until they have
5573 # been installed before distributing them.
5575 # The Makefile.in that distribute the aux files is the one in
5576 # $config_aux_dir or the top-level Makefile.
5577 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5578 my @new_input_files = ();
5579 while (@input_files)
5580 {
5581 my $in = pop @input_files;
5582 my @ins = split (/:/, $output_files{$in});
5583 if (dirname ($ins[0]) eq $auxdirdist)
5584 {
5585 push @new_input_files, $in;
5586 $automake_will_process_aux_dir = 1;
5587 }
5588 else
5589 {
5590 unshift @new_input_files, $in;
5591 }
5592 }
5593 @input_files = @new_input_files;
5595 # If neither the auxdir/Makefile nor the ./Makefile are generated
5596 # by Automake, we won't distribute the aux files anyway. Assume
5597 # the user know what (s)he does, and pretend we will distribute
5598 # them to disable the error in require_file_internal.
5599 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5601 # Look for some files we need. Always check for these. This
5602 # check must be done for every run, even those where we are only
5603 # looking at a subdir Makefile. We must set relative_dir for
5604 # maybe_push_required_file to work.
5605 # Sort the files for stable verbose output.
5606 $relative_dir = '.';
5607 foreach my $file (sort keys %required_aux_file)
5608 {
5609 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5610 }
5611 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5612 if -f $config_aux_dir . '/install.sh';
5614 # Preserve dist_common for later.
5615 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5617 }
5619 ################################################################
5621 # Set up for Cygnus mode.
5622 sub check_cygnus
5623 {
5624 my $cygnus = option 'cygnus';
5625 return unless $cygnus;
5627 set_strictness ('foreign');
5628 set_option ('no-installinfo', $cygnus);
5629 set_option ('no-dependencies', $cygnus);
5630 set_option ('no-dist', $cygnus);
5632 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5633 if !$seen_maint_mode;
5634 }
5636 # Do any extra checking for GNU standards.
5637 sub check_gnu_standards
5638 {
5639 if ($relative_dir eq '.')
5640 {
5641 # In top level (or only) directory.
5642 require_file ("$am_file.am", GNU,
5643 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5645 # Accept one of these three licenses; default to COPYING.
5646 # Make sure we do not overwrite an existing license.
5647 my $license;
5648 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5649 {
5650 if (-f $_)
5651 {
5652 $license = $_;
5653 last;
5654 }
5655 }
5656 require_file ("$am_file.am", GNU, 'COPYING')
5657 unless $license;
5658 }
5660 for my $opt ('no-installman', 'no-installinfo')
5661 {
5662 msg ('error-gnu', option $opt,
5663 "option `$opt' disallowed by GNU standards")
5664 if option $opt;
5665 }
5666 }
5668 # Do any extra checking for GNITS standards.
5669 sub check_gnits_standards
5670 {
5671 if ($relative_dir eq '.')
5672 {
5673 # In top level (or only) directory.
5674 require_file ("$am_file.am", GNITS, 'THANKS');
5675 }
5676 }
5678 ################################################################
5679 #
5680 # Functions to handle files of each language.
5682 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5683 # simple formula: Return value is LANG_SUBDIR if the resulting object
5684 # file should be in a subdir if the source file is, LANG_PROCESS if
5685 # file is to be dealt with, LANG_IGNORE otherwise.
5687 # Much of the actual processing is handled in
5688 # handle_single_transform. These functions exist so that
5689 # auxiliary information can be recorded for a later cleanup pass.
5690 # Note that the calls to these functions are computed, so don't bother
5691 # searching for their precise names in the source.
5693 # This is just a convenience function that can be used to determine
5694 # when a subdir object should be used.
5695 sub lang_sub_obj
5696 {
5697 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5698 }
5700 # Rewrite a single C source file.
5701 sub lang_c_rewrite
5702 {
5703 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5705 if (option 'ansi2knr' && $base =~ /_$/)
5706 {
5707 # FIXME: include line number in error.
5708 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5709 }
5711 my $r = LANG_PROCESS;
5712 if (option 'subdir-objects')
5713 {
5714 $r = LANG_SUBDIR;
5715 if ($directory && $directory ne '.')
5716 {
5717 $base = $directory . '/' . $base;
5719 # libtool is always able to put the object at the proper place,
5720 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5721 msg_var ('portability', $var,
5722 "compiling `$base.c' in subdir requires "
5723 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5724 uniq_scope => US_GLOBAL,
5725 uniq_part => 'AM_PROG_CC_C_O subdir')
5726 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5727 }
5729 # In this case we already have the directory information, so
5730 # don't add it again.
5731 $de_ansi_files{$base} = '';
5732 }
5733 else
5734 {
5735 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5736 ? ''
5737 : "$directory/");
5738 }
5740 if (! $seen_cc_c_o
5741 && $have_per_exec_flags
5742 && ! option 'subdir-objects'
5743 && $nonansi_obj ne '.lo')
5744 {
5745 msg_var ('portability',
5746 $var, "compiling `$base.c' with per-target flags requires "
5747 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5748 uniq_scope => US_GLOBAL,
5749 uniq_part => 'AM_PROG_CC_C_O per-target')
5750 }
5752 return $r;
5753 }
5755 # Rewrite a single C++ source file.
5756 sub lang_cxx_rewrite
5757 {
5758 return &lang_sub_obj;
5759 }
5761 # Rewrite a single header file.
5762 sub lang_header_rewrite
5763 {
5764 # Header files are simply ignored.
5765 return LANG_IGNORE;
5766 }
5768 # Rewrite a single Vala source file.
5769 sub lang_vala_rewrite
5770 {
5771 my ($directory, $base, $ext) = @_;
5773 (my $newext = $ext) =~ s/vala$/c/;
5774 return (LANG_SUBDIR, $newext);
5775 }
5777 # Rewrite a single yacc file.
5778 sub lang_yacc_rewrite
5779 {
5780 my ($directory, $base, $ext) = @_;
5782 my $r = &lang_sub_obj;
5783 (my $newext = $ext) =~ tr/y/c/;
5784 return ($r, $newext);
5785 }
5787 # Rewrite a single yacc++ file.
5788 sub lang_yaccxx_rewrite
5789 {
5790 my ($directory, $base, $ext) = @_;
5792 my $r = &lang_sub_obj;
5793 (my $newext = $ext) =~ tr/y/c/;
5794 return ($r, $newext);
5795 }
5797 # Rewrite a single lex file.
5798 sub lang_lex_rewrite
5799 {
5800 my ($directory, $base, $ext) = @_;
5802 my $r = &lang_sub_obj;
5803 (my $newext = $ext) =~ tr/l/c/;
5804 return ($r, $newext);
5805 }
5807 # Rewrite a single lex++ file.
5808 sub lang_lexxx_rewrite
5809 {
5810 my ($directory, $base, $ext) = @_;
5812 my $r = &lang_sub_obj;
5813 (my $newext = $ext) =~ tr/l/c/;
5814 return ($r, $newext);
5815 }
5817 # Rewrite a single assembly file.
5818 sub lang_asm_rewrite
5819 {
5820 return &lang_sub_obj;
5821 }
5823 # Rewrite a single preprocessed assembly file.
5824 sub lang_cppasm_rewrite
5825 {
5826 return &lang_sub_obj;
5827 }
5829 # Rewrite a single Fortran 77 file.
5830 sub lang_f77_rewrite
5831 {
5832 return &lang_sub_obj;
5833 }
5835 # Rewrite a single Fortran file.
5836 sub lang_fc_rewrite
5837 {
5838 return &lang_sub_obj;
5839 }
5841 # Rewrite a single preprocessed Fortran file.
5842 sub lang_ppfc_rewrite
5843 {
5844 return &lang_sub_obj;
5845 }
5847 # Rewrite a single preprocessed Fortran 77 file.
5848 sub lang_ppf77_rewrite
5849 {
5850 return &lang_sub_obj;
5851 }
5853 # Rewrite a single ratfor file.
5854 sub lang_ratfor_rewrite
5855 {
5856 return &lang_sub_obj;
5857 }
5859 # Rewrite a single Objective C file.
5860 sub lang_objc_rewrite
5861 {
5862 return &lang_sub_obj;
5863 }
5865 # Rewrite a single Unified Parallel C file.
5866 sub lang_upc_rewrite
5867 {
5868 return &lang_sub_obj;
5869 }
5871 # Rewrite a single Java file.
5872 sub lang_java_rewrite
5873 {
5874 return LANG_SUBDIR;
5875 }
5877 # The lang_X_finish functions are called after all source file
5878 # processing is done. Each should handle defining rules for the
5879 # language, etc. A finish function is only called if a source file of
5880 # the appropriate type has been seen.
5882 sub lang_c_finish
5883 {
5884 # Push all libobjs files onto de_ansi_files. We actually only
5885 # push files which exist in the current directory, and which are
5886 # genuine source files.
5887 foreach my $file (keys %libsources)
5888 {
5889 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5890 {
5891 $de_ansi_files{$1} = ''
5892 }
5893 }
5895 if (option 'ansi2knr' && keys %de_ansi_files)
5896 {
5897 # Make all _.c files depend on their corresponding .c files.
5898 my @objects;
5899 foreach my $base (sort keys %de_ansi_files)
5900 {
5901 # Each _.c file must depend on ansi2knr; otherwise it
5902 # might be used in a parallel build before it is built.
5903 # We need to support files in the srcdir and in the build
5904 # dir (because these files might be auto-generated. But
5905 # we can't use $< -- some makes only define $< during a
5906 # suffix rule.
5907 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5908 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5909 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5910 . '`if test -f $(srcdir)/' . $ansfile
5911 . '; then echo $(srcdir)/' . $ansfile
5912 . '; else echo ' . $ansfile . '; fi` '
5913 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5914 . '| $(ANSI2KNR) > $@'
5915 # If ansi2knr fails then we shouldn't
5916 # create the _.c file
5917 . " || rm -f \$\@\n");
5918 push (@objects, $base . '_.$(OBJEXT)');
5919 push (@objects, $base . '_.lo')
5920 if var ('LIBTOOL');
5922 # Explicitly clean the _.c files if they are in a
5923 # subdirectory. (In the current directory they get erased
5924 # by a `rm -f *_.c' rule.)
5925 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5926 if dirname ($base) ne '.';
5927 }
5929 # Make all _.o (and _.lo) files depend on ansi2knr.
5930 # Use a sneaky little hack to make it print nicely.
5931 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5932 }
5933 }
5935 sub lang_vala_finish_target ($$)
5936 {
5937 my ($self, $name) = @_;
5939 my $derived = canonicalize ($name);
5940 my $varname = $derived . '_SOURCES';
5941 my $var = var ($varname);
5943 if ($var)
5944 {
5945 foreach my $file ($var->value_as_list_recursive)
5946 {
5947 $output_rules .= "$file: ${derived}_vala.stamp\n".
5948 "\t\@if test -f \$@; then :; else \\\n".
5949 "\t rm -f ${derived}_vala.stamp; \\\n".
5950 "\t \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n".
5951 "\tfi\n"
5952 if $file =~ s/(.*)\.vala$/$1.c/;
5953 }
5954 }
5956 my $compile = $self->compile;
5958 # Rewrite each occurrence of `AM_$flag' in the compile
5959 # rule into `${derived}_$flag' if it exists.
5960 for my $flag (@{$self->flags})
5961 {
5962 my $val = "${derived}_$flag";
5963 $compile =~ s/\(AM_$flag\)/\($val\)/
5964 if set_seen ($val);
5965 }
5967 my $dirname = dirname ($name);
5969 # Only generate C code, do not run C compiler
5970 $compile .= " -C";
5972 my $verbose = verbose_flag ('VALAC');
5973 my $silent = silent_flag ();
5975 $output_rules .=
5976 "${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
5977 "\t${verbose}${compile} \$(${derived}_SOURCES)\n".
5978 "\t${silent}touch \$@\n";
5980 push_dist_common ("${derived}_vala.stamp");
5982 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
5983 }
5985 # Add output rules to invoke valac and create stamp file as a witness
5986 # to handle multiple outputs. This function is called after all source
5987 # file processing is done.
5988 sub lang_vala_finish
5989 {
5990 my ($self) = @_;
5992 foreach my $prog (keys %known_programs)
5993 {
5994 lang_vala_finish_target ($self, $prog);
5995 }
5997 while (my ($name) = each %known_libraries)
5998 {
5999 lang_vala_finish_target ($self, $name);
6000 }
6001 }
6003 # The built .c files should be cleaned only on maintainer-clean
6004 # as the .c files are distributed. This function is called for each
6005 # .vala source file.
6006 sub lang_vala_target_hook
6007 {
6008 my ($self, $aggregate, $output, $input, %transform) = @_;
6010 $clean_files{$output} = MAINTAINER_CLEAN;
6011 }
6013 # This is a yacc helper which is called whenever we have decided to
6014 # compile a yacc file.
6015 sub lang_yacc_target_hook
6016 {
6017 my ($self, $aggregate, $output, $input, %transform) = @_;
6019 my $flag = $aggregate . "_YFLAGS";
6020 my $flagvar = var $flag;
6021 my $YFLAGSvar = var 'YFLAGS';
6022 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6023 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6024 {
6025 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6026 my $header = $output_base . '.h';
6028 # Found a `-d' that applies to the compilation of this file.
6029 # Add a dependency for the generated header file, and arrange
6030 # for that file to be included in the distribution.
6031 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6032 RULE_AUTOMAKE, TRUE,
6033 INTERNAL))
6034 {
6035 my $condstr = $cond->subst_string;
6036 $output_rules .=
6037 "$condstr${header}: $output\n"
6038 # Recover from removal of $header
6039 . "$condstr\t\@if test ! -f \$@; then \\\n"
6040 . "$condstr\t rm -f $output; \\\n"
6041 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
6042 . "$condstr\telse :; fi\n";
6043 }
6044 # Distribute the generated file, unless its .y source was
6045 # listed in a nodist_ variable. (&handle_source_transform
6046 # will set DIST_SOURCE.)
6047 &push_dist_common ($header)
6048 if $transform{'DIST_SOURCE'};
6050 # If the files are built in the build directory, then we want
6051 # to remove them with `make clean'. If they are in srcdir
6052 # they shouldn't be touched. However, we can't determine this
6053 # statically, and the GNU rules say that yacc/lex output files
6054 # should be removed by maintainer-clean. So that's what we
6055 # do.
6056 $clean_files{$header} = MAINTAINER_CLEAN;
6057 }
6058 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6059 # See the comment above for $HEADER.
6060 $clean_files{$output} = MAINTAINER_CLEAN;
6061 }
6063 # This is a lex helper which is called whenever we have decided to
6064 # compile a lex file.
6065 sub lang_lex_target_hook
6066 {
6067 my ($self, $aggregate, $output, $input) = @_;
6068 # If the files are built in the build directory, then we want to
6069 # remove them with `make clean'. If they are in srcdir they
6070 # shouldn't be touched. However, we can't determine this
6071 # statically, and the GNU rules say that yacc/lex output files
6072 # should be removed by maintainer-clean. So that's what we do.
6073 $clean_files{$output} = MAINTAINER_CLEAN;
6074 }
6076 # This is a helper for both lex and yacc.
6077 sub yacc_lex_finish_helper
6078 {
6079 return if defined $language_scratch{'lex-yacc-done'};
6080 $language_scratch{'lex-yacc-done'} = 1;
6082 # FIXME: for now, no line number.
6083 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6084 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6085 }
6087 sub lang_yacc_finish
6088 {
6089 return if defined $language_scratch{'yacc-done'};
6090 $language_scratch{'yacc-done'} = 1;
6092 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6094 yacc_lex_finish_helper;
6095 }
6098 sub lang_lex_finish
6099 {
6100 return if defined $language_scratch{'lex-done'};
6101 $language_scratch{'lex-done'} = 1;
6103 yacc_lex_finish_helper;
6104 }
6107 # Given a hash table of linker names, pick the name that has the most
6108 # precedence. This is lame, but something has to have global
6109 # knowledge in order to eliminate the conflict. Add more linkers as
6110 # required.
6111 sub resolve_linker
6112 {
6113 my (%linkers) = @_;
6115 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6116 {
6117 return $l if defined $linkers{$l};
6118 }
6119 return 'LINK';
6120 }
6122 # Called to indicate that an extension was used.
6123 sub saw_extension
6124 {
6125 my ($ext) = @_;
6126 if (! defined $extension_seen{$ext})
6127 {
6128 $extension_seen{$ext} = 1;
6129 }
6130 else
6131 {
6132 ++$extension_seen{$ext};
6133 }
6134 }
6136 # Return the number of files seen for a given language. Knows about
6137 # special cases we care about. FIXME: this is hideous. We need
6138 # something that involves real language objects. For instance yacc
6139 # and yaccxx could both derive from a common yacc class which would
6140 # know about the strange ylwrap requirement. (Or better yet we could
6141 # just not support legacy yacc!)
6142 sub count_files_for_language
6143 {
6144 my ($name) = @_;
6146 my @names;
6147 if ($name eq 'yacc' || $name eq 'yaccxx')
6148 {
6149 @names = ('yacc', 'yaccxx');
6150 }
6151 elsif ($name eq 'lex' || $name eq 'lexxx')
6152 {
6153 @names = ('lex', 'lexxx');
6154 }
6155 else
6156 {
6157 @names = ($name);
6158 }
6160 my $r = 0;
6161 foreach $name (@names)
6162 {
6163 my $lang = $languages{$name};
6164 foreach my $ext (@{$lang->extensions})
6165 {
6166 $r += $extension_seen{$ext}
6167 if defined $extension_seen{$ext};
6168 }
6169 }
6171 return $r
6172 }
6174 # Called to ask whether source files have been seen . If HEADERS is 1,
6175 # headers can be included.
6176 sub saw_sources_p
6177 {
6178 my ($headers) = @_;
6180 # count all the sources
6181 my $count = 0;
6182 foreach my $val (values %extension_seen)
6183 {
6184 $count += $val;
6185 }
6187 if (!$headers)
6188 {
6189 $count -= count_files_for_language ('header');
6190 }
6192 return $count > 0;
6193 }
6196 # register_language (%ATTRIBUTE)
6197 # ------------------------------
6198 # Register a single language.
6199 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6200 sub register_language (%)
6201 {
6202 my (%option) = @_;
6204 # Set the defaults.
6205 $option{'ansi'} = 0
6206 unless defined $option{'ansi'};
6207 $option{'autodep'} = 'no'
6208 unless defined $option{'autodep'};
6209 $option{'linker'} = ''
6210 unless defined $option{'linker'};
6211 $option{'flags'} = []
6212 unless defined $option{'flags'};
6213 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6214 unless defined $option{'output_extensions'};
6215 $option{'nodist_specific'} = 0
6216 unless defined $option{'nodist_specific'};
6218 my $lang = new Language (%option);
6220 # Fill indexes.
6221 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6222 $languages{$lang->name} = $lang;
6223 my $link = $lang->linker;
6224 if ($link)
6225 {
6226 if (exists $link_languages{$link})
6227 {
6228 prog_error ("`$link' has different definitions in "
6229 . $lang->name . " and " . $link_languages{$link}->name)
6230 if $lang->link ne $link_languages{$link}->link;
6231 }
6232 else
6233 {
6234 $link_languages{$link} = $lang;
6235 }
6236 }
6238 # Update the pattern of known extensions.
6239 accept_extensions (@{$lang->extensions});
6241 # Upate the $suffix_rule map.
6242 foreach my $suffix (@{$lang->extensions})
6243 {
6244 foreach my $dest (&{$lang->output_extensions} ($suffix))
6245 {
6246 register_suffix_rule (INTERNAL, $suffix, $dest);
6247 }
6248 }
6249 }
6251 # derive_suffix ($EXT, $OBJ)
6252 # --------------------------
6253 # This function is used to find a path from a user-specified suffix $EXT
6254 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6255 sub derive_suffix ($$)
6256 {
6257 my ($source_ext, $obj) = @_;
6259 while (! $extension_map{$source_ext}
6260 && $source_ext ne $obj
6261 && exists $suffix_rules->{$source_ext}
6262 && exists $suffix_rules->{$source_ext}{$obj})
6263 {
6264 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6265 }
6267 return $source_ext;
6268 }
6271 ################################################################
6273 # Pretty-print something and append to output_rules.
6274 sub pretty_print_rule
6275 {
6276 $output_rules .= &makefile_wrap (@_);
6277 }
6280 ################################################################
6283 ## -------------------------------- ##
6284 ## Handling the conditional stack. ##
6285 ## -------------------------------- ##
6288 # $STRING
6289 # make_conditional_string ($NEGATE, $COND)
6290 # ----------------------------------------
6291 sub make_conditional_string ($$)
6292 {
6293 my ($negate, $cond) = @_;
6294 $cond = "${cond}_TRUE"
6295 unless $cond =~ /^TRUE|FALSE$/;
6296 $cond = Automake::Condition::conditional_negate ($cond)
6297 if $negate;
6298 return $cond;
6299 }
6302 my %_am_macro_for_cond =
6303 (
6304 AMDEP => "one of the compiler tests\n"
6305 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6306 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6307 am__fastdepCC => 'AC_PROG_CC',
6308 am__fastdepCCAS => 'AM_PROG_AS',
6309 am__fastdepCXX => 'AC_PROG_CXX',
6310 am__fastdepGCJ => 'AM_PROG_GCJ',
6311 am__fastdepOBJC => 'AC_PROG_OBJC',
6312 am__fastdepUPC => 'AM_PROG_UPC'
6313 );
6315 # $COND
6316 # cond_stack_if ($NEGATE, $COND, $WHERE)
6317 # --------------------------------------
6318 sub cond_stack_if ($$$)
6319 {
6320 my ($negate, $cond, $where) = @_;
6322 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6323 {
6324 my $text = "$cond does not appear in AM_CONDITIONAL";
6325 my $scope = US_LOCAL;
6326 if (exists $_am_macro_for_cond{$cond})
6327 {
6328 my $mac = $_am_macro_for_cond{$cond};
6329 $text .= "\n The usual way to define `$cond' is to add ";
6330 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6331 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6332 # These warnings appear in Automake files (depend2.am),
6333 # so there is no need to display them more than once:
6334 $scope = US_GLOBAL;
6335 }
6336 error $where, $text, uniq_scope => $scope;
6337 }
6339 push (@cond_stack, make_conditional_string ($negate, $cond));
6341 return new Automake::Condition (@cond_stack);
6342 }
6345 # $COND
6346 # cond_stack_else ($NEGATE, $COND, $WHERE)
6347 # ----------------------------------------
6348 sub cond_stack_else ($$$)
6349 {
6350 my ($negate, $cond, $where) = @_;
6352 if (! @cond_stack)
6353 {
6354 error $where, "else without if";
6355 return FALSE;
6356 }
6358 $cond_stack[$#cond_stack] =
6359 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6361 # If $COND is given, check against it.
6362 if (defined $cond)
6363 {
6364 $cond = make_conditional_string ($negate, $cond);
6366 error ($where, "else reminder ($negate$cond) incompatible with "
6367 . "current conditional: $cond_stack[$#cond_stack]")
6368 if $cond_stack[$#cond_stack] ne $cond;
6369 }
6371 return new Automake::Condition (@cond_stack);
6372 }
6375 # $COND
6376 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6377 # -----------------------------------------
6378 sub cond_stack_endif ($$$)
6379 {
6380 my ($negate, $cond, $where) = @_;
6381 my $old_cond;
6383 if (! @cond_stack)
6384 {
6385 error $where, "endif without if";
6386 return TRUE;
6387 }
6389 # If $COND is given, check against it.
6390 if (defined $cond)
6391 {
6392 $cond = make_conditional_string ($negate, $cond);
6394 error ($where, "endif reminder ($negate$cond) incompatible with "
6395 . "current conditional: $cond_stack[$#cond_stack]")
6396 if $cond_stack[$#cond_stack] ne $cond;
6397 }
6399 pop @cond_stack;
6401 return new Automake::Condition (@cond_stack);
6402 }
6408 ## ------------------------ ##
6409 ## Handling the variables. ##
6410 ## ------------------------ ##
6413 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6414 # -----------------------------------------------------
6415 # Like define_variable, but the value is a list, and the variable may
6416 # be defined conditionally. The second argument is the condition
6417 # under which the value should be defined; this should be the empty
6418 # string to define the variable unconditionally. The third argument
6419 # is a list holding the values to use for the variable. The value is
6420 # pretty printed in the output file.
6421 sub define_pretty_variable ($$$@)
6422 {
6423 my ($var, $cond, $where, @value) = @_;
6425 if (! vardef ($var, $cond))
6426 {
6427 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6428 '', $where, VAR_PRETTY);
6429 rvar ($var)->rdef ($cond)->set_seen;
6430 }
6431 }
6434 # define_variable ($VAR, $VALUE, $WHERE)
6435 # --------------------------------------
6436 # Define a new Automake Makefile variable VAR to VALUE, but only if
6437 # not already defined.
6438 sub define_variable ($$$)
6439 {
6440 my ($var, $value, $where) = @_;
6441 define_pretty_variable ($var, TRUE, $where, $value);
6442 }
6445 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6446 # -----------------------------------------------------------
6447 # Define the $VAR which content is the list of file names composed of
6448 # a @BASENAME and the $EXTENSION.
6449 sub define_files_variable ($\@$$)
6450 {
6451 my ($var, $basename, $extension, $where) = @_;
6452 define_variable ($var,
6453 join (' ', map { "$_.$extension" } @$basename),
6454 $where);
6455 }
6458 # Like define_variable, but define a variable to be the configure
6459 # substitution by the same name.
6460 sub define_configure_variable ($)
6461 {
6462 my ($var) = @_;
6464 my $pretty = VAR_ASIS;
6465 my $owner = VAR_CONFIGURE;
6467 # Some variables we do not want to output. For instance it
6468 # would be a bad idea to output `U = @U@` when `@U@` can be
6469 # substituted as `\`.
6470 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6472 # ANSI2KNR is a variable that Automake wants to redefine, so
6473 # it must be owned by Automake. (It is also used as a proof
6474 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6475 # omit the AC_SUBST.)
6476 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6478 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6479 '', $configure_vars{$var}, $pretty);
6480 }
6483 # define_compiler_variable ($LANG)
6484 # --------------------------------
6485 # Define a compiler variable. We also handle defining the `LT'
6486 # version of the command when using libtool.
6487 sub define_compiler_variable ($)
6488 {
6489 my ($lang) = @_;
6491 my ($var, $value) = ($lang->compiler, $lang->compile);
6492 my $libtool_tag = '';
6493 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6494 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6495 &define_variable ($var, $value, INTERNAL);
6496 if (var ('LIBTOOL'))
6497 {
6498 my $verbose = define_verbose_libtool ();
6499 &define_variable ("LT$var",
6500 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6501 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6502 INTERNAL);
6503 }
6504 define_verbose_tagvar ($lang->ccer || 'GEN');
6505 }
6508 # define_linker_variable ($LANG)
6509 # ------------------------------
6510 # Define linker variables.
6511 sub define_linker_variable ($)
6512 {
6513 my ($lang) = @_;
6515 my $libtool_tag = '';
6516 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6517 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6518 # CCLD = $(CC).
6519 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6520 # CCLINK = $(CCLD) blah blah...
6521 my $link = '';
6522 if (var ('LIBTOOL'))
6523 {
6524 my $verbose = define_verbose_libtool ();
6525 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6526 . "\$(LIBTOOLFLAGS) --mode=link ";
6527 }
6528 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6529 &define_variable ($lang->compiler, $lang);
6530 &define_verbose_tagvar ($lang->lder || 'GEN');
6531 }
6533 sub define_per_target_linker_variable ($$)
6534 {
6535 my ($linker, $target) = @_;
6537 # If the user wrote a custom link command, we don't define ours.
6538 return "${target}_LINK"
6539 if set_seen "${target}_LINK";
6541 my $xlink = $linker ? $linker : 'LINK';
6543 my $lang = $link_languages{$xlink};
6544 prog_error "Unknown language for linker variable `$xlink'"
6545 unless $lang;
6547 my $link_command = $lang->link;
6548 if (var 'LIBTOOL')
6549 {
6550 my $libtool_tag = '';
6551 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6552 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6554 my $verbose = define_verbose_libtool ();
6555 $link_command =
6556 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6557 . "--mode=link " . $link_command;
6558 }
6560 # Rewrite each occurrence of `AM_$flag' in the link
6561 # command into `${derived}_$flag' if it exists.
6562 my $orig_command = $link_command;
6563 my @flags = (@{$lang->flags}, 'LDFLAGS');
6564 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6565 for my $flag (@flags)
6566 {
6567 my $val = "${target}_$flag";
6568 $link_command =~ s/\(AM_$flag\)/\($val\)/
6569 if set_seen ($val);
6570 }
6572 # If the computed command is the same as the generic command, use
6573 # the command linker variable.
6574 return ($lang->linker, $lang->lder)
6575 if $link_command eq $orig_command;
6577 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6578 return ("${target}_LINK", $lang->lder);
6579 }
6581 ################################################################
6583 # &check_trailing_slash ($WHERE, $LINE)
6584 # --------------------------------------
6585 # Return 1 iff $LINE ends with a slash.
6586 # Might modify $LINE.
6587 sub check_trailing_slash ($\$)
6588 {
6589 my ($where, $line) = @_;
6591 # Ignore `##' lines.
6592 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6594 # Catch and fix a common error.
6595 msg "syntax", $where, "whitespace following trailing backslash"
6596 if $$line =~ s/\\\s+\n$/\\\n/;
6598 return $$line =~ /\\$/;
6599 }
6602 # &read_am_file ($AMFILE, $WHERE)
6603 # -------------------------------
6604 # Read Makefile.am and set up %contents. Simultaneously copy lines
6605 # from Makefile.am into $output_trailer, or define variables as
6606 # appropriate. NOTE we put rules in the trailer section. We want
6607 # user rules to come after our generated stuff.
6608 sub read_am_file ($$)
6609 {
6610 my ($amfile, $where) = @_;
6612 my $am_file = new Automake::XFile ("< $amfile");
6613 verb "reading $amfile";
6615 # Keep track of the youngest output dependency.
6616 my $mtime = mtime $amfile;
6617 $output_deps_greatest_timestamp = $mtime
6618 if $mtime > $output_deps_greatest_timestamp;
6620 my $spacing = '';
6621 my $comment = '';
6622 my $blank = 0;
6623 my $saw_bk = 0;
6624 my $var_look = VAR_ASIS;
6626 use constant IN_VAR_DEF => 0;
6627 use constant IN_RULE_DEF => 1;
6628 use constant IN_COMMENT => 2;
6629 my $prev_state = IN_RULE_DEF;
6631 while ($_ = $am_file->getline)
6632 {
6633 $where->set ("$amfile:$.");
6634 if (/$IGNORE_PATTERN/o)
6635 {
6636 # Merely delete comments beginning with two hashes.
6637 }
6638 elsif (/$WHITE_PATTERN/o)
6639 {
6640 error $where, "blank line following trailing backslash"
6641 if $saw_bk;
6642 # Stick a single white line before the incoming macro or rule.
6643 $spacing = "\n";
6644 $blank = 1;
6645 # Flush all comments seen so far.
6646 if ($comment ne '')
6647 {
6648 $output_vars .= $comment;
6649 $comment = '';
6650 }
6651 }
6652 elsif (/$COMMENT_PATTERN/o)
6653 {
6654 # Stick comments before the incoming macro or rule. Make
6655 # sure a blank line precedes the first block of comments.
6656 $spacing = "\n" unless $blank;
6657 $blank = 1;
6658 $comment .= $spacing . $_;
6659 $spacing = '';
6660 $prev_state = IN_COMMENT;
6661 }
6662 else
6663 {
6664 last;
6665 }
6666 $saw_bk = check_trailing_slash ($where, $_);
6667 }
6669 # We save the conditional stack on entry, and then check to make
6670 # sure it is the same on exit. This lets us conditionally include
6671 # other files.
6672 my @saved_cond_stack = @cond_stack;
6673 my $cond = new Automake::Condition (@cond_stack);
6675 my $last_var_name = '';
6676 my $last_var_type = '';
6677 my $last_var_value = '';
6678 my $last_where;
6679 # FIXME: shouldn't use $_ in this loop; it is too big.
6680 while ($_)
6681 {
6682 $where->set ("$amfile:$.");
6684 # Make sure the line is \n-terminated.
6685 chomp;
6686 $_ .= "\n";
6688 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6689 # used by users. @MAINT@ is an anachronism now.
6690 $_ =~ s/\@MAINT\@//g
6691 unless $seen_maint_mode;
6693 my $new_saw_bk = check_trailing_slash ($where, $_);
6695 if (/$IGNORE_PATTERN/o)
6696 {
6697 # Merely delete comments beginning with two hashes.
6699 # Keep any backslash from the previous line.
6700 $new_saw_bk = $saw_bk;
6701 }
6702 elsif (/$WHITE_PATTERN/o)
6703 {
6704 # Stick a single white line before the incoming macro or rule.
6705 $spacing = "\n";
6706 error $where, "blank line following trailing backslash"
6707 if $saw_bk;
6708 }
6709 elsif (/$COMMENT_PATTERN/o)
6710 {
6711 error $where, "comment following trailing backslash"
6712 if $saw_bk && $comment eq '';
6714 # Stick comments before the incoming macro or rule.
6715 $comment .= $spacing . $_;
6716 $spacing = '';
6717 $prev_state = IN_COMMENT;
6718 }
6719 elsif ($saw_bk)
6720 {
6721 if ($prev_state == IN_RULE_DEF)
6722 {
6723 my $cond = new Automake::Condition @cond_stack;
6724 $output_trailer .= $cond->subst_string;
6725 $output_trailer .= $_;
6726 }
6727 elsif ($prev_state == IN_COMMENT)
6728 {
6729 # If the line doesn't start with a `#', add it.
6730 # We do this because a continued comment like
6731 # # A = foo \
6732 # bar \
6733 # baz
6734 # is not portable. BSD make doesn't honor
6735 # escaped newlines in comments.
6736 s/^#?/#/;
6737 $comment .= $spacing . $_;
6738 }
6739 else # $prev_state == IN_VAR_DEF
6740 {
6741 $last_var_value .= ' '
6742 unless $last_var_value =~ /\s$/;
6743 $last_var_value .= $_;
6745 if (!/\\$/)
6746 {
6747 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6748 $last_var_type, $cond,
6749 $last_var_value, $comment,
6750 $last_where, VAR_ASIS)
6751 if $cond != FALSE;
6752 $comment = $spacing = '';
6753 }
6754 }
6755 }
6757 elsif (/$IF_PATTERN/o)
6758 {
6759 $cond = cond_stack_if ($1, $2, $where);
6760 }
6761 elsif (/$ELSE_PATTERN/o)
6762 {
6763 $cond = cond_stack_else ($1, $2, $where);
6764 }
6765 elsif (/$ENDIF_PATTERN/o)
6766 {
6767 $cond = cond_stack_endif ($1, $2, $where);
6768 }
6770 elsif (/$RULE_PATTERN/o)
6771 {
6772 # Found a rule.
6773 $prev_state = IN_RULE_DEF;
6775 # For now we have to output all definitions of user rules
6776 # and can't diagnose duplicates (see the comment in
6777 # Automake::Rule::define). So we go on and ignore the return value.
6778 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6780 check_variable_expansions ($_, $where);
6782 $output_trailer .= $comment . $spacing;
6783 my $cond = new Automake::Condition @cond_stack;
6784 $output_trailer .= $cond->subst_string;
6785 $output_trailer .= $_;
6786 $comment = $spacing = '';
6787 }
6788 elsif (/$ASSIGNMENT_PATTERN/o)
6789 {
6790 # Found a macro definition.
6791 $prev_state = IN_VAR_DEF;
6792 $last_var_name = $1;
6793 $last_var_type = $2;
6794 $last_var_value = $3;
6795 $last_where = $where->clone;
6796 if ($3 ne '' && substr ($3, -1) eq "\\")
6797 {
6798 # We preserve the `\' because otherwise the long lines
6799 # that are generated will be truncated by broken
6800 # `sed's.
6801 $last_var_value = $3 . "\n";
6802 }
6803 # Normally we try to output variable definitions in the
6804 # same format they were input. However, POSIX compliant
6805 # systems are not required to support lines longer than
6806 # 2048 bytes (most notably, some sed implementation are
6807 # limited to 4000 bytes, and sed is used by config.status
6808 # to rewrite Makefile.in into Makefile). Moreover nobody
6809 # would really write such long lines by hand since it is
6810 # hardly maintainable. So if a line is longer that 1000
6811 # bytes (an arbitrary limit), assume it has been
6812 # automatically generated by some tools, and flatten the
6813 # variable definition. Otherwise, keep the variable as it
6814 # as been input.
6815 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6817 if (!/\\$/)
6818 {
6819 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6820 $last_var_type, $cond,
6821 $last_var_value, $comment,
6822 $last_where, $var_look)
6823 if $cond != FALSE;
6824 $comment = $spacing = '';
6825 $var_look = VAR_ASIS;
6826 }
6827 }
6828 elsif (/$INCLUDE_PATTERN/o)
6829 {
6830 my $path = $1;
6832 if ($path =~ s/^\$\(top_srcdir\)\///)
6833 {
6834 push (@include_stack, "\$\(top_srcdir\)/$path");
6835 # Distribute any included file.
6837 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6838 # otherwise OSF make will implicitly copy the included
6839 # file in the build tree during `make distdir' to satisfy
6840 # the dependency.
6841 # (subdircond2.test and subdircond3.test will fail.)
6842 push_dist_common ("\$\(top_srcdir\)/$path");
6843 }
6844 else
6845 {
6846 $path =~ s/\$\(srcdir\)\///;
6847 push (@include_stack, "\$\(srcdir\)/$path");
6848 # Always use the $(srcdir) prefix in DIST_COMMON,
6849 # otherwise OSF make will implicitly copy the included
6850 # file in the build tree during `make distdir' to satisfy
6851 # the dependency.
6852 # (subdircond2.test and subdircond3.test will fail.)
6853 push_dist_common ("\$\(srcdir\)/$path");
6854 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6855 }
6856 $where->push_context ("`$path' included from here");
6857 &read_am_file ($path, $where);
6858 $where->pop_context;
6859 }
6860 else
6861 {
6862 # This isn't an error; it is probably a continued rule.
6863 # In fact, this is what we assume.
6864 $prev_state = IN_RULE_DEF;
6865 check_variable_expansions ($_, $where);
6866 $output_trailer .= $comment . $spacing;
6867 my $cond = new Automake::Condition @cond_stack;
6868 $output_trailer .= $cond->subst_string;
6869 $output_trailer .= $_;
6870 $comment = $spacing = '';
6871 error $where, "`#' comment at start of rule is unportable"
6872 if $_ =~ /^\t\s*\#/;
6873 }
6875 $saw_bk = $new_saw_bk;
6876 $_ = $am_file->getline;
6877 }
6879 $output_trailer .= $comment;
6881 error ($where, "trailing backslash on last line")
6882 if $saw_bk;
6884 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6885 : "too many conditionals closed in include file"))
6886 if "@saved_cond_stack" ne "@cond_stack";
6887 }
6890 # define_standard_variables ()
6891 # ----------------------------
6892 # A helper for read_main_am_file which initializes configure variables
6893 # and variables from header-vars.am.
6894 sub define_standard_variables
6895 {
6896 my $saved_output_vars = $output_vars;
6897 my ($comments, undef, $rules) =
6898 file_contents_internal (1, "$libdir/am/header-vars.am",
6899 new Automake::Location);
6901 foreach my $var (sort keys %configure_vars)
6902 {
6903 &define_configure_variable ($var);
6904 }
6906 $output_vars .= $comments . $rules;
6907 }
6909 # Read main am file.
6910 sub read_main_am_file
6911 {
6912 my ($amfile) = @_;
6914 # This supports the strange variable tricks we are about to play.
6915 prog_error (macros_dump () . "variable defined before read_main_am_file")
6916 if (scalar (variables) > 0);
6918 # Generate copyright header for generated Makefile.in.
6919 # We do discard the output of predefined variables, handled below.
6920 $output_vars = ("# $in_file_name generated by automake "
6921 . $VERSION . " from $am_file_name.\n");
6922 $output_vars .= '# ' . subst ('configure_input') . "\n";
6923 $output_vars .= $gen_copyright;
6925 # We want to predefine as many variables as possible. This lets
6926 # the user set them with `+=' in Makefile.am.
6927 &define_standard_variables;
6929 # Read user file, which might override some of our values.
6930 &read_am_file ($amfile, new Automake::Location);
6931 }
6935 ################################################################
6937 # $FLATTENED
6938 # &flatten ($STRING)
6939 # ------------------
6940 # Flatten the $STRING and return the result.
6941 sub flatten
6942 {
6943 $_ = shift;
6945 s/\\\n//somg;
6946 s/\s+/ /g;
6947 s/^ //;
6948 s/ $//;
6950 return $_;
6951 }
6954 # transform_token ($TOKEN, \%PAIRS, $KEY)
6955 # =======================================
6956 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6957 # (which should be ?KEY? or any of the special %% requests)..
6958 sub transform_token ($$$)
6959 {
6960 my ($token, $transform, $key) = @_;
6961 my $res = $transform->{$key};
6962 prog_error "Unknown key `$key' in `$token'" unless defined $res;
6963 return $res;
6964 }
6967 # transform ($TOKEN, \%PAIRS)
6968 # ===========================
6969 # If ($TOKEN, $VAL) is in %PAIRS:
6970 # - replaces %KEY% with $VAL,
6971 # - enables/disables ?KEY? and ?!KEY?,
6972 # - replaces %?KEY% with TRUE or FALSE.
6973 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6974 # IFTRUE / IFFALSE, as appropriate.
6975 sub transform ($$)
6976 {
6977 my ($token, $transform) = @_;
6979 # %KEY%.
6980 # Must be before the following pattern to exclude the case
6981 # when there is neither IFTRUE nor IFFALSE.
6982 if ($token =~ /^%([\w\-]+)%$/)
6983 {
6984 return transform_token ($token, $transform, $1);
6985 }
6986 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6987 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6988 {
6989 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6990 }
6991 # %?KEY%.
6992 elsif ($token =~ /^%\?([\w\-]+)%$/)
6993 {
6994 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6995 }
6996 # ?KEY? and ?!KEY?.
6997 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6998 {
6999 my $neg = ($1 eq '!') ? 1 : 0;
7000 my $val = transform_token ($token, $transform, $2);
7001 return (!!$val == $neg) ? '##%' : '';
7002 }
7003 else
7004 {
7005 prog_error "Unknown request format: $token";
7006 }
7007 }
7010 # @PARAGRAPHS
7011 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7012 # ------------------------------------------
7013 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7014 # paragraphs.
7015 sub make_paragraphs ($%)
7016 {
7017 my ($file, %transform) = @_;
7019 # Complete %transform with global options.
7020 # Note that %transform goes last, so it overrides global options.
7021 %transform = ('CYGNUS' => !! option 'cygnus',
7022 'MAINTAINER-MODE'
7023 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7025 'XZ' => !! option 'dist-xz',
7026 'LZMA' => !! option 'dist-lzma',
7027 'BZIP2' => !! option 'dist-bzip2',
7028 'COMPRESS' => !! option 'dist-tarZ',
7029 'GZIP' => ! option 'no-dist-gzip',
7030 'SHAR' => !! option 'dist-shar',
7031 'ZIP' => !! option 'dist-zip',
7033 'INSTALL-INFO' => ! option 'no-installinfo',
7034 'INSTALL-MAN' => ! option 'no-installman',
7035 'HAVE-MANS' => !! var ('MANS'),
7036 'CK-NEWS' => !! option 'check-news',
7038 'SUBDIRS' => !! var ('SUBDIRS'),
7039 'TOPDIR_P' => $relative_dir eq '.',
7041 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7042 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7043 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7045 'LIBTOOL' => !! var ('LIBTOOL'),
7046 'NONLIBTOOL' => 1,
7047 'FIRST' => ! $transformed_files{$file},
7048 %transform);
7050 $transformed_files{$file} = 1;
7051 $_ = $am_file_cache{$file};
7053 if (! defined $_)
7054 {
7055 verb "reading $file";
7056 # Swallow the whole file.
7057 my $fc_file = new Automake::XFile "< $file";
7058 my $saved_dollar_slash = $/;
7059 undef $/;
7060 $_ = $fc_file->getline;
7061 $/ = $saved_dollar_slash;
7062 $fc_file->close;
7064 # Remove ##-comments.
7065 # Besides we don't need more than two consecutive new-lines.
7066 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7068 $am_file_cache{$file} = $_;
7069 }
7071 # Substitute Automake template tokens.
7072 s/(?: % \?? [\w\-]+ %
7073 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7074 | \? !? [\w\-]+ \?
7075 )/transform($&, \%transform)/gex;
7076 # transform() may have added some ##%-comments to strip.
7077 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7078 # ####### and do not remove the latter.)
7079 s/^[ \t]*(?:##%)+.*\n//gm;
7081 # Split at unescaped new lines.
7082 my @lines = split (/(?<!\\)\n/, $_);
7083 my @res;
7085 while (defined ($_ = shift @lines))
7086 {
7087 my $paragraph = $_;
7088 # If we are a rule, eat as long as we start with a tab.
7089 if (/$RULE_PATTERN/smo)
7090 {
7091 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7092 {
7093 $paragraph .= "\n$_";
7094 }
7095 unshift (@lines, $_);
7096 }
7098 # If we are a comments, eat as much comments as you can.
7099 elsif (/$COMMENT_PATTERN/smo)
7100 {
7101 while (defined ($_ = shift @lines)
7102 && $_ =~ /$COMMENT_PATTERN/smo)
7103 {
7104 $paragraph .= "\n$_";
7105 }
7106 unshift (@lines, $_);
7107 }
7109 push @res, $paragraph;
7110 }
7112 return @res;
7113 }
7117 # ($COMMENT, $VARIABLES, $RULES)
7118 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7119 # -------------------------------------------------------------
7120 # Return contents of a file from $libdir/am, automatically skipping
7121 # macros or rules which are already known. $IS_AM iff the caller is
7122 # reading an Automake file (as opposed to the user's Makefile.am).
7123 sub file_contents_internal ($$$%)
7124 {
7125 my ($is_am, $file, $where, %transform) = @_;
7127 $where->set ($file);
7129 my $result_vars = '';
7130 my $result_rules = '';
7131 my $comment = '';
7132 my $spacing = '';
7134 # The following flags are used to track rules spanning across
7135 # multiple paragraphs.
7136 my $is_rule = 0; # 1 if we are processing a rule.
7137 my $discard_rule = 0; # 1 if the current rule should not be output.
7139 # We save the conditional stack on entry, and then check to make
7140 # sure it is the same on exit. This lets us conditionally include
7141 # other files.
7142 my @saved_cond_stack = @cond_stack;
7143 my $cond = new Automake::Condition (@cond_stack);
7145 foreach (make_paragraphs ($file, %transform))
7146 {
7147 # FIXME: no line number available.
7148 $where->set ($file);
7150 # Sanity checks.
7151 error $where, "blank line following trailing backslash:\n$_"
7152 if /\\$/;
7153 error $where, "comment following trailing backslash:\n$_"
7154 if /\\#/;
7156 if (/^$/)
7157 {
7158 $is_rule = 0;
7159 # Stick empty line before the incoming macro or rule.
7160 $spacing = "\n";
7161 }
7162 elsif (/$COMMENT_PATTERN/mso)
7163 {
7164 $is_rule = 0;
7165 # Stick comments before the incoming macro or rule.
7166 $comment = "$_\n";
7167 }
7169 # Handle inclusion of other files.
7170 elsif (/$INCLUDE_PATTERN/o)
7171 {
7172 if ($cond != FALSE)
7173 {
7174 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7175 $where->push_context ("`$file' included from here");
7176 # N-ary `.=' fails.
7177 my ($com, $vars, $rules)
7178 = file_contents_internal ($is_am, $file, $where, %transform);
7179 $where->pop_context;
7180 $comment .= $com;
7181 $result_vars .= $vars;
7182 $result_rules .= $rules;
7183 }
7184 }
7186 # Handling the conditionals.
7187 elsif (/$IF_PATTERN/o)
7188 {
7189 $cond = cond_stack_if ($1, $2, $file);
7190 }
7191 elsif (/$ELSE_PATTERN/o)
7192 {
7193 $cond = cond_stack_else ($1, $2, $file);
7194 }
7195 elsif (/$ENDIF_PATTERN/o)
7196 {
7197 $cond = cond_stack_endif ($1, $2, $file);
7198 }
7200 # Handling rules.
7201 elsif (/$RULE_PATTERN/mso)
7202 {
7203 $is_rule = 1;
7204 $discard_rule = 0;
7205 # Separate relationship from optional actions: the first
7206 # `new-line tab" not preceded by backslash (continuation
7207 # line).
7208 my $paragraph = $_;
7209 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7210 my ($relationship, $actions) = ($1, $2 || '');
7212 # Separate targets from dependencies: the first colon.
7213 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7214 my ($targets, $dependencies) = ($1, $2);
7215 # Remove the escaped new lines.
7216 # I don't know why, but I have to use a tmp $flat_deps.
7217 my $flat_deps = &flatten ($dependencies);
7218 my @deps = split (' ', $flat_deps);
7220 foreach (split (' ', $targets))
7221 {
7222 # FIXME: 1. We are not robust to people defining several targets
7223 # at once, only some of them being in %dependencies. The
7224 # actions from the targets in %dependencies are usually generated
7225 # from the content of %actions, but if some targets in $targets
7226 # are not in %dependencies the ELSE branch will output
7227 # a rule for all $targets (i.e. the targets which are both
7228 # in %dependencies and $targets will have two rules).
7230 # FIXME: 2. The logic here is not able to output a
7231 # multi-paragraph rule several time (e.g. for each condition
7232 # it is defined for) because it only knows the first paragraph.
7234 # FIXME: 3. We are not robust to people defining a subset
7235 # of a previously defined "multiple-target" rule. E.g.
7236 # `foo:' after `foo bar:'.
7238 # Output only if not in FALSE.
7239 if (defined $dependencies{$_} && $cond != FALSE)
7240 {
7241 &depend ($_, @deps);
7242 register_action ($_, $actions);
7243 }
7244 else
7245 {
7246 # Free-lance dependency. Output the rule for all the
7247 # targets instead of one by one.
7248 my @undefined_conds =
7249 Automake::Rule::define ($targets, $file,
7250 $is_am ? RULE_AUTOMAKE : RULE_USER,
7251 $cond, $where);
7252 for my $undefined_cond (@undefined_conds)
7253 {
7254 my $condparagraph = $paragraph;
7255 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7256 $result_rules .= "$spacing$comment$condparagraph\n";
7257 }
7258 if (scalar @undefined_conds == 0)
7259 {
7260 # Remember to discard next paragraphs
7261 # if they belong to this rule.
7262 # (but see also FIXME: #2 above.)
7263 $discard_rule = 1;
7264 }
7265 $comment = $spacing = '';
7266 last;
7267 }
7268 }
7269 }
7271 elsif (/$ASSIGNMENT_PATTERN/mso)
7272 {
7273 my ($var, $type, $val) = ($1, $2, $3);
7274 error $where, "variable `$var' with trailing backslash"
7275 if /\\$/;
7277 $is_rule = 0;
7279 Automake::Variable::define ($var,
7280 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7281 $type, $cond, $val, $comment, $where,
7282 VAR_ASIS)
7283 if $cond != FALSE;
7285 $comment = $spacing = '';
7286 }
7287 else
7288 {
7289 # This isn't an error; it is probably some tokens which
7290 # configure is supposed to replace, such as `@SET-MAKE@',
7291 # or some part of a rule cut by an if/endif.
7292 if (! $cond->false && ! ($is_rule && $discard_rule))
7293 {
7294 s/^/$cond->subst_string/gme;
7295 $result_rules .= "$spacing$comment$_\n";
7296 }
7297 $comment = $spacing = '';
7298 }
7299 }
7301 error ($where, @cond_stack ?
7302 "unterminated conditionals: @cond_stack" :
7303 "too many conditionals closed in include file")
7304 if "@saved_cond_stack" ne "@cond_stack";
7306 return ($comment, $result_vars, $result_rules);
7307 }
7310 # $CONTENTS
7311 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7312 # ------------------------------------------------
7313 # Return contents of a file from $libdir/am, automatically skipping
7314 # macros or rules which are already known.
7315 sub file_contents ($$%)
7316 {
7317 my ($basename, $where, %transform) = @_;
7318 my ($comments, $variables, $rules) =
7319 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7320 %transform);
7321 return "$comments$variables$rules";
7322 }
7325 # @PREFIX
7326 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7327 # -----------------------------------------------------
7328 # Find all variable prefixes that are used for install directories. A
7329 # prefix `zar' qualifies iff:
7330 #
7331 # * `zardir' is a variable.
7332 # * `zar_PRIMARY' is a variable.
7333 #
7334 # As a side effect, it looks for misspellings. It is an error to have
7335 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7336 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7337 # of the same name (with "dir" appended) exists. For instance, if the
7338 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7339 # This is to provide a little extra flexibility in those cases which
7340 # need it.
7341 sub am_primary_prefixes ($$@)
7342 {
7343 my ($primary, $can_dist, @prefixes) = @_;
7345 local $_;
7346 my %valid = map { $_ => 0 } @prefixes;
7347 $valid{'EXTRA'} = 0;
7348 foreach my $var (variables $primary)
7349 {
7350 # Automake is allowed to define variables that look like primaries
7351 # but which aren't. E.g. INSTALL_sh_DATA.
7352 # Autoconf can also define variables like INSTALL_DATA, so
7353 # ignore all configure variables (at least those which are not
7354 # redefined in Makefile.am).
7355 # FIXME: We should make sure that these variables are not
7356 # conditionally defined (or else adjust the condition below).
7357 my $def = $var->def (TRUE);
7358 next if $def && $def->owner != VAR_MAKEFILE;
7360 my $varname = $var->name;
7362 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7363 {
7364 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7365 if ($dist ne '' && ! $can_dist)
7366 {
7367 err_var ($var,
7368 "invalid variable `$varname': `dist' is forbidden");
7369 }
7370 # Standard directories must be explicitly allowed.
7371 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7372 {
7373 err_var ($var,
7374 "`${X}dir' is not a legitimate directory " .
7375 "for `$primary'");
7376 }
7377 # A not explicitly valid directory is allowed if Xdir is defined.
7378 elsif (! defined $valid{$X} &&
7379 $var->requires_variables ("`$varname' is used", "${X}dir"))
7380 {
7381 # Nothing to do. Any error message has been output
7382 # by $var->requires_variables.
7383 }
7384 else
7385 {
7386 # Ensure all extended prefixes are actually used.
7387 $valid{"$base$dist$X"} = 1;
7388 }
7389 }
7390 else
7391 {
7392 prog_error "unexpected variable name: $varname";
7393 }
7394 }
7396 # Return only those which are actually defined.
7397 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7398 }
7401 # Handle `where_HOW' variable magic. Does all lookups, generates
7402 # install code, and possibly generates code to define the primary
7403 # variable. The first argument is the name of the .am file to munge,
7404 # the second argument is the primary variable (e.g. HEADERS), and all
7405 # subsequent arguments are possible installation locations.
7406 #
7407 # Returns list of [$location, $value] pairs, where
7408 # $value's are the values in all where_HOW variable, and $location
7409 # there associated location (the place here their parent variables were
7410 # defined).
7411 #
7412 # FIXME: this should be rewritten to be cleaner. It should be broken
7413 # up into multiple functions.
7414 #
7415 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7416 sub am_install_var
7417 {
7418 my (@args) = @_;
7420 my $do_require = 1;
7421 my $can_dist = 0;
7422 my $default_dist = 0;
7423 while (@args)
7424 {
7425 if ($args[0] eq '-noextra')
7426 {
7427 $do_require = 0;
7428 }
7429 elsif ($args[0] eq '-candist')
7430 {
7431 $can_dist = 1;
7432 }
7433 elsif ($args[0] eq '-defaultdist')
7434 {
7435 $default_dist = 1;
7436 $can_dist = 1;
7437 }
7438 elsif ($args[0] !~ /^-/)
7439 {
7440 last;
7441 }
7442 shift (@args);
7443 }
7445 my ($file, $primary, @prefix) = @args;
7447 # Now that configure substitutions are allowed in where_HOW
7448 # variables, it is an error to actually define the primary. We
7449 # allow `JAVA', as it is customarily used to mean the Java
7450 # interpreter. This is but one of several Java hacks. Similarly,
7451 # `PYTHON' is customarily used to mean the Python interpreter.
7452 reject_var $primary, "`$primary' is an anachronism"
7453 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7455 # Get the prefixes which are valid and actually used.
7456 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7458 # If a primary includes a configure substitution, then the EXTRA_
7459 # form is required. Otherwise we can't properly do our job.
7460 my $require_extra;
7462 my @used = ();
7463 my @result = ();
7465 foreach my $X (@prefix)
7466 {
7467 my $nodir_name = $X;
7468 my $one_name = $X . '_' . $primary;
7469 my $one_var = var $one_name;
7471 my $strip_subdir = 1;
7472 # If subdir prefix should be preserved, do so.
7473 if ($nodir_name =~ /^nobase_/)
7474 {
7475 $strip_subdir = 0;
7476 $nodir_name =~ s/^nobase_//;
7477 }
7479 # If files should be distributed, do so.
7480 my $dist_p = 0;
7481 if ($can_dist)
7482 {
7483 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7484 || (! $default_dist && $nodir_name =~ /^dist_/));
7485 $nodir_name =~ s/^(dist|nodist)_//;
7486 }
7489 # Use the location of the currently processed variable.
7490 # We are not processing a particular condition, so pick the first
7491 # available.
7492 my $tmpcond = $one_var->conditions->one_cond;
7493 my $where = $one_var->rdef ($tmpcond)->location->clone;
7495 # Append actual contents of where_PRIMARY variable to
7496 # @result, skipping @substitutions@.
7497 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7498 {
7499 my ($loc, $value) = @$locvals;
7500 # Skip configure substitutions.
7501 if ($value =~ /^\@.*\@$/)
7502 {
7503 if ($nodir_name eq 'EXTRA')
7504 {
7505 error ($where,
7506 "`$one_name' contains configure substitution, "
7507 . "but shouldn't");
7508 }
7509 # Check here to make sure variables defined in
7510 # configure.ac do not imply that EXTRA_PRIMARY
7511 # must be defined.
7512 elsif (! defined $configure_vars{$one_name})
7513 {
7514 $require_extra = $one_name
7515 if $do_require;
7516 }
7517 }
7518 else
7519 {
7520 push (@result, $locvals);
7521 }
7522 }
7523 # A blatant hack: we rewrite each _PROGRAMS primary to include
7524 # EXEEXT.
7525 append_exeext { 1 } $one_name
7526 if $primary eq 'PROGRAMS';
7527 # "EXTRA" shouldn't be used when generating clean targets,
7528 # all, or install targets. We used to warn if EXTRA_FOO was
7529 # defined uselessly, but this was annoying.
7530 next
7531 if $nodir_name eq 'EXTRA';
7533 if ($nodir_name eq 'check')
7534 {
7535 push (@check, '$(' . $one_name . ')');
7536 }
7537 else
7538 {
7539 push (@used, '$(' . $one_name . ')');
7540 }
7542 # Is this to be installed?
7543 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7545 # If so, with install-exec? (or install-data?).
7546 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7548 my $check_options_p = $install_p && !! option 'std-options';
7550 # Use the location of the currently processed variable as context.
7551 $where->push_context ("while processing `$one_name'");
7553 # The variable containing all files to distribute.
7554 my $distvar = "\$($one_name)";
7555 $distvar = shadow_unconditionally ($one_name, $where)
7556 if ($dist_p && $one_var->has_conditional_contents);
7558 # Singular form of $PRIMARY.
7559 (my $one_primary = $primary) =~ s/S$//;
7560 $output_rules .= &file_contents ($file, $where,
7561 PRIMARY => $primary,
7562 ONE_PRIMARY => $one_primary,
7563 DIR => $X,
7564 NDIR => $nodir_name,
7565 BASE => $strip_subdir,
7567 EXEC => $exec_p,
7568 INSTALL => $install_p,
7569 DIST => $dist_p,
7570 DISTVAR => $distvar,
7571 'CK-OPTS' => $check_options_p);
7572 }
7574 # The JAVA variable is used as the name of the Java interpreter.
7575 # The PYTHON variable is used as the name of the Python interpreter.
7576 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7577 {
7578 # Define it.
7579 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7580 $output_vars .= "\n";
7581 }
7583 err_var ($require_extra,
7584 "`$require_extra' contains configure substitution,\n"
7585 . "but `EXTRA_$primary' not defined")
7586 if ($require_extra && ! var ('EXTRA_' . $primary));
7588 # Push here because PRIMARY might be configure time determined.
7589 push (@all, '$(' . $primary . ')')
7590 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7592 # Make the result unique. This lets the user use conditionals in
7593 # a natural way, but still lets us program lazily -- we don't have
7594 # to worry about handling a particular object more than once.
7595 # We will keep only one location per object.
7596 my %result = ();
7597 for my $pair (@result)
7598 {
7599 my ($loc, $val) = @$pair;
7600 $result{$val} = $loc;
7601 }
7602 my @l = sort keys %result;
7603 return map { [$result{$_}->clone, $_] } @l;
7604 }
7607 ################################################################
7609 # Each key in this hash is the name of a directory holding a
7610 # Makefile.in. These variables are local to `is_make_dir'.
7611 my %make_dirs = ();
7612 my $make_dirs_set = 0;
7614 sub is_make_dir
7615 {
7616 my ($dir) = @_;
7617 if (! $make_dirs_set)
7618 {
7619 foreach my $iter (@configure_input_files)
7620 {
7621 $make_dirs{dirname ($iter)} = 1;
7622 }
7623 # We also want to notice Makefile.in's.
7624 foreach my $iter (@other_input_files)
7625 {
7626 if ($iter =~ /Makefile\.in$/)
7627 {
7628 $make_dirs{dirname ($iter)} = 1;
7629 }
7630 }
7631 $make_dirs_set = 1;
7632 }
7633 return defined $make_dirs{$dir};
7634 }
7636 ################################################################
7638 # Find the aux dir. This should match the algorithm used by
7639 # ./configure. (See the Autoconf documentation for for
7640 # AC_CONFIG_AUX_DIR.)
7641 sub locate_aux_dir ()
7642 {
7643 if (! $config_aux_dir_set_in_configure_ac)
7644 {
7645 # The default auxiliary directory is the first
7646 # of ., .., or ../.. that contains install-sh.
7647 # Assume . if install-sh doesn't exist yet.
7648 for my $dir (qw (. .. ../..))
7649 {
7650 if (-f "$dir/install-sh")
7651 {
7652 $config_aux_dir = $dir;
7653 last;
7654 }
7655 }
7656 $config_aux_dir = '.' unless $config_aux_dir;
7657 }
7658 # Avoid unsightly '/.'s.
7659 $am_config_aux_dir =
7660 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7661 $am_config_aux_dir =~ s,/*$,,;
7662 }
7665 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7666 # --------------------------------------------------
7667 # See if we want to push this file onto dist_common. This function
7668 # encodes the rules for deciding when to do so.
7669 sub maybe_push_required_file
7670 {
7671 my ($dir, $file, $fullfile) = @_;
7673 if ($dir eq $relative_dir)
7674 {
7675 push_dist_common ($file);
7676 return 1;
7677 }
7678 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7679 {
7680 # If we are doing the topmost directory, and the file is in a
7681 # subdir which does not have a Makefile, then we distribute it
7682 # here.
7684 # If a required file is above the source tree, it is important
7685 # to prefix it with `$(srcdir)' so that no VPATH search is
7686 # performed. Otherwise problems occur with Make implementations
7687 # that rewrite and simplify rules whose dependencies are found in a
7688 # VPATH location. Here is an example with OSF1/Tru64 Make.
7689 #
7690 # % cat Makefile
7691 # VPATH = sub
7692 # distdir: ../a
7693 # echo ../a
7694 # % ls
7695 # Makefile a
7696 # % make
7697 # echo a
7698 # a
7699 #
7700 # Dependency `../a' was found in `sub/../a', but this make
7701 # implementation simplified it as `a'. (Note that the sub/
7702 # directory does not even exist.)
7703 #
7704 # This kind of VPATH rewriting seems hard to cancel. The
7705 # distdir.am hack against VPATH rewriting works only when no
7706 # simplification is done, i.e., for dependencies which are in
7707 # subdirectories, not in enclosing directories. Hence, in
7708 # the latter case we use a full path to make sure no VPATH
7709 # search occurs.
7710 $fullfile = '$(srcdir)/' . $fullfile
7711 if $dir =~ m,^\.\.(?:$|/),;
7713 push_dist_common ($fullfile);
7714 return 1;
7715 }
7716 return 0;
7717 }
7720 # If a file name appears as a key in this hash, then it has already
7721 # been checked for. This allows us not to report the same error more
7722 # than once.
7723 my %required_file_not_found = ();
7725 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7726 # --------------------------------------------------------------
7727 # Verify that the file must exist in $DIRECTORY, or install it.
7728 # $MYSTRICT is the strictness level at which this file becomes required.
7729 sub require_file_internal ($$$@)
7730 {
7731 my ($where, $mystrict, $dir, @files) = @_;
7733 foreach my $file (@files)
7734 {
7735 my $fullfile = "$dir/$file";
7736 my $found_it = 0;
7737 my $dangling_sym = 0;
7739 if (-l $fullfile && ! -f $fullfile)
7740 {
7741 $dangling_sym = 1;
7742 }
7743 elsif (dir_has_case_matching_file ($dir, $file))
7744 {
7745 $found_it = 1;
7746 maybe_push_required_file ($dir, $file, $fullfile);
7747 }
7749 # `--force-missing' only has an effect if `--add-missing' is
7750 # specified.
7751 if ($found_it && (! $add_missing || ! $force_missing))
7752 {
7753 next;
7754 }
7755 else
7756 {
7757 # If we've already looked for it, we're done. You might
7758 # wonder why we don't do this before searching for the
7759 # file. If we do that, then something like
7760 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7761 # DIST_COMMON.
7762 if (! $found_it)
7763 {
7764 next if defined $required_file_not_found{$fullfile};
7765 $required_file_not_found{$fullfile} = 1;
7766 }
7768 if ($strictness >= $mystrict)
7769 {
7770 if ($dangling_sym && $add_missing)
7771 {
7772 unlink ($fullfile);
7773 }
7775 my $trailer = '';
7776 my $trailer2 = '';
7777 my $suppress = 0;
7779 # Only install missing files according to our desired
7780 # strictness level.
7781 my $message = "required file `$fullfile' not found";
7782 if ($add_missing)
7783 {
7784 if (-f "$libdir/$file")
7785 {
7786 $suppress = 1;
7788 # Install the missing file. Symlink if we
7789 # can, copy if we must. Note: delete the file
7790 # first, in case it is a dangling symlink.
7791 $message = "installing `$fullfile'";
7793 # The license file should not be volatile.
7794 if ($file eq "COPYING")
7795 {
7796 $message .= " using GNU General Public License v3 file";
7797 $trailer2 = "\n Consider adding the COPYING file"
7798 . " to the version control system"
7799 . "\n for your code, to avoid questions"
7800 . " about which license your project uses.";
7801 }
7803 # Windows Perl will hang if we try to delete a
7804 # file that doesn't exist.
7805 unlink ($fullfile) if -f $fullfile;
7806 if ($symlink_exists && ! $copy_missing)
7807 {
7808 if (! symlink ("$libdir/$file", $fullfile))
7809 {
7810 $suppress = 0;
7811 $trailer = "; error while making link: $!";
7812 }
7813 }
7814 elsif (system ('cp', "$libdir/$file", $fullfile))
7815 {
7816 $suppress = 0;
7817 $trailer = "\n error while copying";
7818 }
7819 set_dir_cache_file ($dir, $file);
7820 }
7822 if (! maybe_push_required_file (dirname ($fullfile),
7823 $file, $fullfile))
7824 {
7825 if (! $found_it && ! $automake_will_process_aux_dir)
7826 {
7827 # We have added the file but could not push it
7828 # into DIST_COMMON, probably because this is
7829 # an auxiliary file and we are not processing
7830 # the top level Makefile. Furthermore Automake
7831 # hasn't been asked to create the Makefile.in
7832 # that distributes the aux dir files.
7833 error ($where, 'Please make a full run of automake'
7834 . " so $fullfile gets distributed.");
7835 }
7836 }
7837 }
7838 else
7839 {
7840 $trailer = "\n `automake --add-missing' can install `$file'"
7841 if -f "$libdir/$file";
7842 }
7844 # If --force-missing was specified, and we have
7845 # actually found the file, then do nothing.
7846 next
7847 if $found_it && $force_missing;
7849 # If we couldn't install the file, but it is a target in
7850 # the Makefile, don't print anything. This allows files
7851 # like README, AUTHORS, or THANKS to be generated.
7852 next
7853 if !$suppress && rule $file;
7855 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7856 }
7857 }
7858 }
7859 }
7861 # &require_file ($WHERE, $MYSTRICT, @FILES)
7862 # -----------------------------------------
7863 sub require_file ($$@)
7864 {
7865 my ($where, $mystrict, @files) = @_;
7866 require_file_internal ($where, $mystrict, $relative_dir, @files);
7867 }
7869 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7870 # -----------------------------------------------------------
7871 sub require_file_with_macro ($$$@)
7872 {
7873 my ($cond, $macro, $mystrict, @files) = @_;
7874 $macro = rvar ($macro) unless ref $macro;
7875 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7876 }
7878 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7879 # ----------------------------------------------------------------
7880 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7881 # must be in that directory. Otherwise expect it in the current directory.
7882 sub require_libsource_with_macro ($$$@)
7883 {
7884 my ($cond, $macro, $mystrict, @files) = @_;
7885 $macro = rvar ($macro) unless ref $macro;
7886 if ($config_libobj_dir)
7887 {
7888 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7889 $config_libobj_dir, @files);
7890 }
7891 else
7892 {
7893 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7894 }
7895 }
7897 # Queue to push require_conf_file requirements to.
7898 my $required_conf_file_queue;
7900 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
7901 # -------------------------------------------------------------------------
7902 sub queue_required_conf_file ($$$$@)
7903 {
7904 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7905 my @serial_loc;
7906 if (ref $where)
7907 {
7908 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7909 }
7910 else
7911 {
7912 @serial_loc = (QUEUE_STRING, $where);
7913 }
7914 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7915 }
7917 # &require_queued_conf_file ($QUEUE)
7918 # ----------------------------------
7919 sub require_queued_conf_file ($)
7920 {
7921 my ($queue) = @_;
7922 my $where;
7923 my $dir = $queue->dequeue ();
7924 my $loc_key = $queue->dequeue ();
7925 if ($loc_key eq QUEUE_LOCATION)
7926 {
7927 $where = Automake::Location::deserialize ($queue);
7928 }
7929 elsif ($loc_key eq QUEUE_STRING)
7930 {
7931 $where = $queue->dequeue ();
7932 }
7933 else
7934 {
7935 prog_error "unexpected key $loc_key";
7936 }
7937 my $mystrict = $queue->dequeue ();
7938 my $nfiles = $queue->dequeue ();
7939 my @files;
7940 push @files, $queue->dequeue ()
7941 foreach (1 .. $nfiles);
7943 # Dequeuing happens outside of per-makefile context, so we have to
7944 # set the variables used by require_file_internal and the functions
7945 # it calls. Gross!
7946 $relative_dir = $dir;
7947 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7948 }
7950 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7951 # ----------------------------------------------
7952 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
7953 # worker threads may queue up the action to be serialized by the master.
7954 #
7955 # FIXME: this seriously relies on the semantics of require_file_internal
7956 # and maybe_push_required_file, in that we exploit the fact that only the
7957 # contents of the last handled output file may be impacted (which in turn
7958 # is dealt with by the master thread).
7959 sub require_conf_file ($$@)
7960 {
7961 my ($where, $mystrict, @files) = @_;
7962 if (defined $required_conf_file_queue)
7963 {
7964 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
7965 $relative_dir, $where, $mystrict, @files);
7966 }
7967 else
7968 {
7969 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7970 }
7971 }
7974 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7975 # ----------------------------------------------------------------
7976 sub require_conf_file_with_macro ($$$@)
7977 {
7978 my ($cond, $macro, $mystrict, @files) = @_;
7979 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7980 $mystrict, @files);
7981 }
7983 ################################################################
7985 # &require_build_directory ($DIRECTORY)
7986 # ------------------------------------
7987 # Emit rules to create $DIRECTORY if needed, and return
7988 # the file that any target requiring this directory should be made
7989 # dependent upon.
7990 # We don't want to emit the rule twice, and want to reuse it
7991 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7992 sub require_build_directory ($)
7993 {
7994 my $directory = shift;
7996 return $directory_map{$directory} if exists $directory_map{$directory};
7998 my $cdir = File::Spec->canonpath ($directory);
8000 if (exists $directory_map{$cdir})
8001 {
8002 my $stamp = $directory_map{$cdir};
8003 $directory_map{$directory} = $stamp;
8004 return $stamp;
8005 }
8007 my $dirstamp = "$cdir/\$(am__dirstamp)";
8009 $directory_map{$directory} = $dirstamp;
8010 $directory_map{$cdir} = $dirstamp;
8012 # Set a variable for the dirstamp basename.
8013 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8014 '$(am__leading_dot)dirstamp');
8016 # Directory must be removed by `make distclean'.
8017 $clean_files{$dirstamp} = DIST_CLEAN;
8019 $output_rules .= ("$dirstamp:\n"
8020 . "\t\@\$(MKDIR_P) $directory\n"
8021 . "\t\@: > $dirstamp\n");
8023 return $dirstamp;
8024 }
8026 # &require_build_directory_maybe ($FILE)
8027 # --------------------------------------
8028 # If $FILE lies in a subdirectory, emit a rule to create this
8029 # directory and return the file that $FILE should be made
8030 # dependent upon. Otherwise, just return the empty string.
8031 sub require_build_directory_maybe ($)
8032 {
8033 my $file = shift;
8034 my $directory = dirname ($file);
8036 if ($directory ne '.')
8037 {
8038 return require_build_directory ($directory);
8039 }
8040 else
8041 {
8042 return '';
8043 }
8044 }
8046 ################################################################
8048 # Push a list of files onto dist_common.
8049 sub push_dist_common
8050 {
8051 prog_error "push_dist_common run after handle_dist"
8052 if $handle_dist_run;
8053 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8054 '', INTERNAL, VAR_PRETTY);
8055 }
8058 ################################################################
8060 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8061 # ----------------------------------------------
8062 # Generate a Makefile.in given the name of the corresponding Makefile and
8063 # the name of the file output by config.status.
8064 sub generate_makefile ($$)
8065 {
8066 my ($makefile_am, $makefile_in) = @_;
8068 # Reset all the Makefile.am related variables.
8069 initialize_per_input;
8071 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8072 # warnings for this file. So hold any warning issued before
8073 # we have processed AUTOMAKE_OPTIONS.
8074 buffer_messages ('warning');
8076 # Name of input file ("Makefile.am") and output file
8077 # ("Makefile.in"). These have no directory components.
8078 $am_file_name = basename ($makefile_am);
8079 $in_file_name = basename ($makefile_in);
8081 # $OUTPUT is encoded. If it contains a ":" then the first element
8082 # is the real output file, and all remaining elements are input
8083 # files. We don't scan or otherwise deal with these input files,
8084 # other than to mark them as dependencies. See
8085 # &scan_autoconf_files for details.
8086 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8088 $relative_dir = dirname ($makefile);
8089 $am_relative_dir = dirname ($makefile_am);
8090 $topsrcdir = backname ($relative_dir);
8092 read_main_am_file ($makefile_am);
8093 if (handle_options)
8094 {
8095 # Process buffered warnings.
8096 flush_messages;
8097 # Fatal error. Just return, so we can continue with next file.
8098 return;
8099 }
8100 # Process buffered warnings.
8101 flush_messages;
8103 # There are a few install-related variables that you should not define.
8104 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8105 {
8106 my $v = var $var;
8107 if ($v)
8108 {
8109 my $def = $v->def (TRUE);
8110 prog_error "$var not defined in condition TRUE"
8111 unless $def;
8112 reject_var $var, "`$var' should not be defined"
8113 if $def->owner != VAR_AUTOMAKE;
8114 }
8115 }
8117 # Catch some obsolete variables.
8118 msg_var ('obsolete', 'INCLUDES',
8119 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8120 if var ('INCLUDES');
8122 # Must do this after reading .am file.
8123 define_variable ('subdir', $relative_dir, INTERNAL);
8125 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8126 # recursive rules are enabled.
8127 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8128 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8130 # Check first, because we might modify some state.
8131 check_cygnus;
8132 check_gnu_standards;
8133 check_gnits_standards;
8135 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8136 handle_gettext;
8137 handle_libraries;
8138 handle_ltlibraries;
8139 handle_programs;
8140 handle_scripts;
8142 # These must be run after all the sources are scanned. They
8143 # use variables defined by &handle_libraries, &handle_ltlibraries,
8144 # or &handle_programs.
8145 handle_compile;
8146 handle_languages;
8147 handle_libtool;
8149 # Variables used by distdir.am and tags.am.
8150 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8151 if (! option 'no-dist')
8152 {
8153 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8154 }
8156 handle_multilib;
8157 handle_texinfo;
8158 handle_emacs_lisp;
8159 handle_python;
8160 handle_java;
8161 handle_man_pages;
8162 handle_data;
8163 handle_headers;
8164 handle_subdirs;
8165 handle_tags;
8166 handle_minor_options;
8167 # Must come after handle_programs so that %known_programs is up-to-date.
8168 handle_tests;
8170 # This must come after most other rules.
8171 handle_dist;
8173 handle_footer;
8174 do_check_merge_target;
8175 handle_all ($makefile);
8177 # FIXME: Gross!
8178 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8179 {
8180 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8181 }
8182 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8183 {
8184 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8185 }
8187 handle_install;
8188 handle_clean ($makefile);
8189 handle_factored_dependencies;
8191 # Comes last, because all the above procedures may have
8192 # defined or overridden variables.
8193 $output_vars .= output_variables;
8195 check_typos;
8197 my ($out_file) = $output_directory . '/' . $makefile_in;
8199 if ($exit_code != 0)
8200 {
8201 verb "not writing $out_file because of earlier errors";
8202 return;
8203 }
8205 if (! -d ($output_directory . '/' . $am_relative_dir))
8206 {
8207 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8208 }
8210 # We make sure that `all:' is the first target.
8211 my $output =
8212 "$output_vars$output_all$output_header$output_rules$output_trailer";
8214 # Decide whether we must update the output file or not.
8215 # We have to update in the following situations.
8216 # * $force_generation is set.
8217 # * any of the output dependencies is younger than the output
8218 # * the contents of the output is different (this can happen
8219 # if the project has been populated with a file listed in
8220 # @common_files since the last run).
8221 # Output's dependencies are split in two sets:
8222 # * dependencies which are also configure dependencies
8223 # These do not change between each Makefile.am
8224 # * other dependencies, specific to the Makefile.am being processed
8225 # (such as the Makefile.am itself, or any Makefile fragment
8226 # it includes).
8227 my $timestamp = mtime $out_file;
8228 if (! $force_generation
8229 && $configure_deps_greatest_timestamp < $timestamp
8230 && $output_deps_greatest_timestamp < $timestamp
8231 && $output eq contents ($out_file))
8232 {
8233 verb "$out_file unchanged";
8234 # No need to update.
8235 return;
8236 }
8238 if (-e $out_file)
8239 {
8240 unlink ($out_file)
8241 or fatal "cannot remove $out_file: $!\n";
8242 }
8244 my $gm_file = new Automake::XFile "> $out_file";
8245 verb "creating $out_file";
8246 print $gm_file $output;
8247 }
8249 ################################################################
8254 ################################################################
8256 # Print usage information.
8257 sub usage ()
8258 {
8259 print "Usage: $0 [OPTION] ... [Makefile]...
8261 Generate Makefile.in for configure from Makefile.am.
8263 Operation modes:
8264 --help print this help, then exit
8265 --version print version number, then exit
8266 -v, --verbose verbosely list files processed
8267 --no-force only update Makefile.in's that are out of date
8268 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8270 Dependency tracking:
8271 -i, --ignore-deps disable dependency tracking code
8272 --include-deps enable dependency tracking code
8274 Flavors:
8275 --cygnus assume program is part of Cygnus-style tree
8276 --foreign set strictness to foreign
8277 --gnits set strictness to gnits
8278 --gnu set strictness to gnu
8280 Library files:
8281 -a, --add-missing add missing standard files to package
8282 --libdir=DIR directory storing library files
8283 -c, --copy with -a, copy missing files (default is symlink)
8284 -f, --force-missing force update of standard files
8286 ";
8287 Automake::ChannelDefs::usage;
8289 my ($last, @lcomm);
8290 $last = '';
8291 foreach my $iter (sort ((@common_files, @common_sometimes)))
8292 {
8293 push (@lcomm, $iter) unless $iter eq $last;
8294 $last = $iter;
8295 }
8297 my @four;
8298 print "\nFiles which are automatically distributed, if found:\n";
8299 format USAGE_FORMAT =
8300 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8301 $four[0], $four[1], $four[2], $four[3]
8302 .
8303 $~ = "USAGE_FORMAT";
8305 my $cols = 4;
8306 my $rows = int(@lcomm / $cols);
8307 my $rest = @lcomm % $cols;
8309 if ($rest)
8310 {
8311 $rows++;
8312 }
8313 else
8314 {
8315 $rest = $cols;
8316 }
8318 for (my $y = 0; $y < $rows; $y++)
8319 {
8320 @four = ("", "", "", "");
8321 for (my $x = 0; $x < $cols; $x++)
8322 {
8323 last if $y + 1 == $rows && $x == $rest;
8325 my $idx = (($x > $rest)
8326 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8327 : ($rows * $x));
8329 $idx += $y;
8330 $four[$x] = $lcomm[$idx];
8331 }
8332 write;
8333 }
8335 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
8337 # --help always returns 0 per GNU standards.
8338 exit 0;
8339 }
8342 # &version ()
8343 # -----------
8344 # Print version information
8345 sub version ()
8346 {
8347 print <<EOF;
8348 automake (GNU $PACKAGE) $VERSION
8349 Copyright (C) 2009 Free Software Foundation, Inc.
8350 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
8351 This is free software: you are free to change and redistribute it.
8352 There is NO WARRANTY, to the extent permitted by law.
8354 Written by Tom Tromey <tromey\@redhat.com>
8355 and Alexandre Duret-Lutz <adl\@gnu.org>.
8356 EOF
8357 # --version always returns 0 per GNU standards.
8358 exit 0;
8359 }
8361 ################################################################
8363 # Parse command line.
8364 sub parse_arguments ()
8365 {
8366 # Start off as gnu.
8367 set_strictness ('gnu');
8369 my $cli_where = new Automake::Location;
8370 my %cli_options =
8371 (
8372 'libdir=s' => \$libdir,
8373 'gnu' => sub { set_strictness ('gnu'); },
8374 'gnits' => sub { set_strictness ('gnits'); },
8375 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8376 'foreign' => sub { set_strictness ('foreign'); },
8377 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8378 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8379 $cli_where); },
8380 'no-force' => sub { $force_generation = 0; },
8381 'f|force-missing' => \$force_missing,
8382 'o|output-dir=s' => \$output_directory,
8383 'a|add-missing' => \$add_missing,
8384 'c|copy' => \$copy_missing,
8385 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8386 'W|warnings=s' => \&parse_warnings,
8387 # These long options (--Werror and --Wno-error) for backward
8388 # compatibility. Use -Werror and -Wno-error today.
8389 'Werror' => sub { parse_warnings 'W', 'error'; },
8390 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8391 );
8392 use Getopt::Long;
8393 Getopt::Long::config ("bundling", "pass_through");
8395 # See if --version or --help is used. We want to process these before
8396 # anything else because the GNU Coding Standards require us to
8397 # `exit 0' after processing these options, and we can't guarantee this
8398 # if we treat other options first. (Handling other options first
8399 # could produce error diagnostics, and in this condition it is
8400 # confusing if Automake does `exit 0'.)
8401 my %cli_options_1st_pass =
8402 (
8403 'version' => \&version,
8404 'help' => \&usage,
8405 # Recognize all other options (and their arguments) but do nothing.
8406 map { $_ => sub {} } (keys %cli_options)
8407 );
8408 my @ARGV_backup = @ARGV;
8409 Getopt::Long::GetOptions %cli_options_1st_pass
8410 or exit 1;
8411 @ARGV = @ARGV_backup;
8413 # Now *really* process the options. This time we know that --help
8414 # and --version are not present, but we specify them nonetheless so
8415 # that ambiguous abbreviation are diagnosed.
8416 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8417 or exit 1;
8419 if (defined $output_directory)
8420 {
8421 msg 'obsolete', "`--output-dir' is deprecated\n";
8422 }
8423 else
8424 {
8425 # In the next release we'll remove this entirely.
8426 $output_directory = '.';
8427 }
8429 return unless @ARGV;
8431 if ($ARGV[0] =~ /^-./)
8432 {
8433 my %argopts;
8434 for my $k (keys %cli_options)
8435 {
8436 if ($k =~ /(.*)=s$/)
8437 {
8438 map { $argopts{(length ($_) == 1)
8439 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
8440 }
8441 }
8442 if ($ARGV[0] eq '--')
8443 {
8444 shift @ARGV;
8445 }
8446 elsif (exists $argopts{$ARGV[0]})
8447 {
8448 fatal ("option `$ARGV[0]' requires an argument\n"
8449 . "Try `$0 --help' for more information.");
8450 }
8451 else
8452 {
8453 fatal ("unrecognized option `$ARGV[0]'.\n"
8454 . "Try `$0 --help' for more information.");
8455 }
8456 }
8458 my $errspec = 0;
8459 foreach my $arg (@ARGV)
8460 {
8461 fatal ("empty argument\nTry `$0 --help' for more information.")
8462 if ($arg eq '');
8464 # Handle $local:$input syntax.
8465 my ($local, @rest) = split (/:/, $arg);
8466 @rest = ("$local.in",) unless @rest;
8467 my $input = locate_am @rest;
8468 if ($input)
8469 {
8470 push @input_files, $input;
8471 $output_files{$input} = join (':', ($local, @rest));
8472 }
8473 else
8474 {
8475 error "no Automake input file found for `$arg'";
8476 $errspec = 1;
8477 }
8478 }
8479 fatal "no input file found among supplied arguments"
8480 if $errspec && ! @input_files;
8481 }
8484 # handle_makefile ($MAKEFILE_IN)
8485 # ------------------------------
8486 # Deal with $MAKEFILE_IN.
8487 sub handle_makefile ($)
8488 {
8489 my ($file) = @_;
8490 ($am_file = $file) =~ s/\.in$//;
8491 if (! -f ($am_file . '.am'))
8492 {
8493 error "`$am_file.am' does not exist";
8494 }
8495 else
8496 {
8497 # Any warning setting now local to this Makefile.am.
8498 dup_channel_setup;
8500 generate_makefile ($am_file . '.am', $file);
8502 # Back out any warning setting.
8503 drop_channel_setup;
8504 }
8505 }
8507 # handle_makefiles_serial ()
8508 # --------------------------
8509 # Deal with all makefiles, without threads.
8510 sub handle_makefiles_serial ()
8511 {
8512 foreach my $file (@input_files)
8513 {
8514 handle_makefile ($file);
8515 }
8516 }
8518 # get_number_of_threads ()
8519 # ------------------------
8520 # Logic for deciding how many worker threads to use.
8521 sub get_number_of_threads
8522 {
8523 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8525 $nthreads = 0
8526 unless $nthreads =~ /^[0-9]+$/;
8528 # It doesn't make sense to use more threads than makefiles,
8529 my $max_threads = @input_files;
8531 # but a single worker thread is helpful for exposing bugs.
8532 if ($automake_will_process_aux_dir && $max_threads > 1)
8533 {
8534 $max_threads--;
8535 }
8536 if ($nthreads > $max_threads)
8537 {
8538 $nthreads = $max_threads;
8539 }
8540 return $nthreads;
8541 }
8543 # handle_makefiles_threaded ($NTHREADS)
8544 # -------------------------------------
8545 # Deal with all makefiles, using threads. The general strategy is to
8546 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8547 # worker threads push back everything that needs serialization:
8548 # * warning and (normal) error messages, for stable stderr output
8549 # order and content (avoiding duplicates, for example),
8550 # * races when installing aux files (and respective messages),
8551 # * races when collecting aux files for distribution.
8552 #
8553 # The latter requires that the makefile that deals with the aux dir
8554 # files be handled last, done by the master thread.
8555 sub handle_makefiles_threaded ($)
8556 {
8557 my ($nthreads) = @_;
8559 my @queued_input_files = @input_files;
8560 my $last_input_file = undef;
8561 if ($automake_will_process_aux_dir)
8562 {
8563 $last_input_file = pop @queued_input_files;
8564 }
8566 # The file queue distributes all makefiles, the message queues
8567 # collect all serializations needed for respective files.
8568 my $file_queue = Thread::Queue->new;
8569 my %msg_queues;
8570 foreach my $file (@queued_input_files)
8571 {
8572 $msg_queues{$file} = Thread::Queue->new;
8573 }
8575 verb "spawning $nthreads worker threads";
8576 my @threads = (1 .. $nthreads);
8577 foreach my $t (@threads)
8578 {
8579 $t = threads->new (sub
8580 {
8581 while (my $file = $file_queue->dequeue)
8582 {
8583 verb "handling $file";
8584 my $queue = $msg_queues{$file};
8585 setup_channel_queue ($queue, QUEUE_MESSAGE);
8586 $required_conf_file_queue = $queue;
8587 handle_makefile ($file);
8588 $queue->enqueue (undef);
8589 setup_channel_queue (undef, undef);
8590 $required_conf_file_queue = undef;
8591 }
8592 return $exit_code;
8593 });
8594 }
8596 # Queue all normal makefiles.
8597 verb "queuing " . @queued_input_files . " input files";
8598 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8600 # Collect and process serializations.
8601 foreach my $file (@queued_input_files)
8602 {
8603 verb "dequeuing messages for " . $file;
8604 reset_local_duplicates ();
8605 my $queue = $msg_queues{$file};
8606 while (my $key = $queue->dequeue)
8607 {
8608 if ($key eq QUEUE_MESSAGE)
8609 {
8610 pop_channel_queue ($queue);
8611 }
8612 elsif ($key eq QUEUE_CONF_FILE)
8613 {
8614 require_queued_conf_file ($queue);
8615 }
8616 else
8617 {
8618 prog_error "unexpected key $key";
8619 }
8620 }
8621 }
8623 foreach my $t (@threads)
8624 {
8625 my @exit_thread = $t->join;
8626 $exit_code = $exit_thread[0]
8627 if ($exit_thread[0] > $exit_code);
8628 }
8630 # The master processes the last file.
8631 if ($automake_will_process_aux_dir)
8632 {
8633 verb "processing last input file";
8634 handle_makefile ($last_input_file);
8635 }
8636 }
8638 ################################################################
8640 # Parse the WARNINGS environment variable.
8641 parse_WARNINGS;
8643 # Parse command line.
8644 parse_arguments;
8646 $configure_ac = require_configure_ac;
8648 # Do configure.ac scan only once.
8649 scan_autoconf_files;
8651 if (! @input_files)
8652 {
8653 my $msg = '';
8654 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8655 if -f 'Makefile.am';
8656 fatal ("no `Makefile.am' found for any configure output$msg");
8657 }
8659 my $nthreads = get_number_of_threads ();
8661 if ($perl_threads && $nthreads >= 1)
8662 {
8663 handle_makefiles_threaded ($nthreads);
8664 }
8665 else
8666 {
8667 handle_makefiles_serial ();
8668 }
8670 exit $exit_code;
8673 ### Setup "GNU" style for perl-mode and cperl-mode.
8674 ## Local Variables:
8675 ## perl-indent-level: 2
8676 ## perl-continued-statement-offset: 2
8677 ## perl-continued-brace-offset: 0
8678 ## perl-brace-offset: 0
8679 ## perl-brace-imaginary-offset: 0
8680 ## perl-label-offset: -2
8681 ## cperl-indent-level: 2
8682 ## cperl-brace-offset: 0
8683 ## cperl-continued-brace-offset: 0
8684 ## cperl-label-offset: -2
8685 ## cperl-extra-newline-before-brace: t
8686 ## cperl-merge-trailing-else: nil
8687 ## cperl-continued-statement-offset: 2
8688 ## End: