| blob | fe2ff3d788d4d2edfc94c05dfb16f4ee69743f08 |
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 an 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 $known_programs{$one_file} = $where;
2620 # Canonicalize names and check for misspellings.
2621 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2622 '_SOURCES', '_OBJECTS',
2623 '_DEPENDENCIES');
2625 $where->push_context ("while processing program `$one_file'");
2626 $where->set (INTERNAL->get);
2628 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2629 NONLIBTOOL => 1, LIBTOOL => 0);
2631 if (var ($xname . "_LDADD"))
2632 {
2633 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2634 }
2635 else
2636 {
2637 # User didn't define prog_LDADD override. So do it.
2638 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2640 # This does a bit too much work. But we need it to
2641 # generate _DEPENDENCIES when appropriate.
2642 if (var ('LDADD'))
2643 {
2644 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2645 }
2646 }
2648 reject_var ($xname . '_LIBADD',
2649 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2651 set_seen ($xname . '_DEPENDENCIES');
2652 set_seen ($xname . '_LDFLAGS');
2654 # Determine program to use for link.
2655 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2656 $vlink = verbose_flag ($vlink || 'GEN');
2658 # If the resulting program lies into a subdirectory,
2659 # make sure this directory will exist.
2660 my $dirstamp = require_build_directory_maybe ($one_file);
2662 $libtool_clean_directories{dirname ($one_file)} = 1;
2664 $output_rules .= &file_contents ('program',
2665 $where,
2666 PROGRAM => $one_file,
2667 XPROGRAM => $xname,
2668 XLINK => $xlink,
2669 VERBOSE => $vlink,
2670 DIRSTAMP => $dirstamp,
2671 EXEEXT => '$(EXEEXT)');
2673 if ($seen_libobjs || $seen_global_libobjs)
2674 {
2675 if (var ($xname . '_LDADD'))
2676 {
2677 &check_libobjs_sources ($xname, $xname . '_LDADD');
2678 }
2679 elsif (var ('LDADD'))
2680 {
2681 &check_libobjs_sources ($xname, 'LDADD');
2682 }
2683 }
2684 }
2685 }
2688 # handle_libraries ()
2689 # -------------------
2690 # Handle libraries.
2691 sub handle_libraries
2692 {
2693 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2694 'lib', 'pkglib', 'noinst', 'check');
2695 return if ! @liblist;
2697 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2698 'noinst', 'check');
2700 if (@prefix)
2701 {
2702 my $var = rvar ($prefix[0] . '_LIBRARIES');
2703 $var->requires_variables ('library used', 'RANLIB');
2704 }
2706 &define_variable ('AR', 'ar', INTERNAL);
2707 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2708 &define_verbose_tagvar ('AR');
2710 foreach my $pair (@liblist)
2711 {
2712 my ($where, $onelib) = @$pair;
2714 my $seen_libobjs = 0;
2715 # Check that the library fits the standard naming convention.
2716 my $bn = basename ($onelib);
2717 if ($bn !~ /^lib.*\.a$/)
2718 {
2719 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2720 my $suggestion = dirname ($onelib) . "/$bn";
2721 $suggestion =~ s|^\./||g;
2722 msg ('error-gnu/warn', $where,
2723 "`$onelib' is not a standard library name\n"
2724 . "did you mean `$suggestion'?")
2725 }
2727 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2729 $where->push_context ("while processing library `$onelib'");
2730 $where->set (INTERNAL->get);
2732 my $obj = get_object_extension '.$(OBJEXT)';
2734 # Canonicalize names and check for misspellings.
2735 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2736 '_OBJECTS', '_DEPENDENCIES',
2737 '_AR');
2739 if (! var ($xlib . '_AR'))
2740 {
2741 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2742 }
2744 # Generate support for conditional object inclusion in
2745 # libraries.
2746 if (var ($xlib . '_LIBADD'))
2747 {
2748 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2749 {
2750 $seen_libobjs = 1;
2751 }
2752 }
2753 else
2754 {
2755 &define_variable ($xlib . "_LIBADD", '', $where);
2756 }
2758 reject_var ($xlib . '_LDADD',
2759 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2761 # Make sure we at look at this.
2762 set_seen ($xlib . '_DEPENDENCIES');
2764 &handle_source_transform ($xlib, $onelib, $obj, $where,
2765 NONLIBTOOL => 1, LIBTOOL => 0);
2767 # If the resulting library lies into a subdirectory,
2768 # make sure this directory will exist.
2769 my $dirstamp = require_build_directory_maybe ($onelib);
2770 my $verbose = verbose_flag ('AR');
2771 my $silent = silent_flag ();
2773 $output_rules .= &file_contents ('library',
2774 $where,
2775 VERBOSE => $verbose,
2776 SILENT => $silent,
2777 LIBRARY => $onelib,
2778 XLIBRARY => $xlib,
2779 DIRSTAMP => $dirstamp);
2781 if ($seen_libobjs)
2782 {
2783 if (var ($xlib . '_LIBADD'))
2784 {
2785 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2786 }
2787 }
2788 }
2789 }
2792 # handle_ltlibraries ()
2793 # ---------------------
2794 # Handle shared libraries.
2795 sub handle_ltlibraries
2796 {
2797 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2798 'noinst', 'lib', 'pkglib', 'check');
2799 return if ! @liblist;
2801 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2802 'noinst', 'check');
2804 if (@prefix)
2805 {
2806 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2807 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2808 }
2810 my %instdirs = ();
2811 my %instsubdirs = ();
2812 my %instconds = ();
2813 my %liblocations = (); # Location (in Makefile.am) of each library.
2815 foreach my $key (@prefix)
2816 {
2817 # Get the installation directory of each library.
2818 my $dir = $key;
2819 my $strip_subdir = 1;
2820 if ($dir =~ /^nobase_/)
2821 {
2822 $dir =~ s/^nobase_//;
2823 $strip_subdir = 0;
2824 }
2825 my $var = rvar ($key . '_LTLIBRARIES');
2827 # We reject libraries which are installed in several places
2828 # in the same condition, because we can only specify one
2829 # `-rpath' option.
2830 $var->traverse_recursively
2831 (sub
2832 {
2833 my ($var, $val, $cond, $full_cond) = @_;
2834 my $hcond = $full_cond->human;
2835 my $where = $var->rdef ($cond)->location;
2836 my $ldir = '';
2837 $ldir = '/' . dirname ($val)
2838 if (!$strip_subdir);
2839 # A library cannot be installed in different directory
2840 # in overlapping conditions.
2841 if (exists $instconds{$val})
2842 {
2843 my ($msg, $acond) =
2844 $instconds{$val}->ambiguous_p ($val, $full_cond);
2846 if ($msg)
2847 {
2848 error ($where, $msg, partial => 1);
2849 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2850 $dirtxt = "built for `$dir'"
2851 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2852 my $dircond =
2853 $full_cond->true ? "" : " in condition $hcond";
2855 error ($where, "`$val' should be $dirtxt$dircond ...",
2856 partial => 1);
2858 my $hacond = $acond->human;
2859 my $adir = $instdirs{$val}{$acond};
2860 my $adirtxt = "installed in `$adir'";
2861 $adirtxt = "built for `$adir'"
2862 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2863 || $adir eq 'check');
2864 my $adircond = $acond->true ? "" : " in condition $hacond";
2866 my $onlyone = ($dir ne $adir) ?
2867 ("\nLibtool libraries can be built for only one "
2868 . "destination.") : "";
2870 error ($liblocations{$val}{$acond},
2871 "... and should also be $adirtxt$adircond.$onlyone");
2872 return;
2873 }
2874 }
2875 else
2876 {
2877 $instconds{$val} = new Automake::DisjConditions;
2878 }
2879 $instdirs{$val}{$full_cond} = $dir;
2880 $instsubdirs{$val}{$full_cond} = $ldir;
2881 $liblocations{$val}{$full_cond} = $where;
2882 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2883 },
2884 sub
2885 {
2886 return ();
2887 },
2888 skip_ac_subst => 1);
2889 }
2891 foreach my $pair (@liblist)
2892 {
2893 my ($where, $onelib) = @$pair;
2895 my $seen_libobjs = 0;
2896 my $obj = get_object_extension '.lo';
2898 # Canonicalize names and check for misspellings.
2899 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2900 '_SOURCES', '_OBJECTS',
2901 '_DEPENDENCIES');
2903 # Check that the library fits the standard naming convention.
2904 my $libname_rx = '^lib.*\.la';
2905 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2906 my $ldvar2 = var ('LDFLAGS');
2907 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2908 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2909 {
2910 # Relax name checking for libtool modules.
2911 $libname_rx = '\.la';
2912 }
2914 my $bn = basename ($onelib);
2915 if ($bn !~ /$libname_rx$/)
2916 {
2917 my $type = 'library';
2918 if ($libname_rx eq '\.la')
2919 {
2920 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2921 $type = 'module';
2922 }
2923 else
2924 {
2925 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2926 }
2927 my $suggestion = dirname ($onelib) . "/$bn";
2928 $suggestion =~ s|^\./||g;
2929 msg ('error-gnu/warn', $where,
2930 "`$onelib' is not a standard libtool $type name\n"
2931 . "did you mean `$suggestion'?")
2932 }
2934 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2936 $where->push_context ("while processing Libtool library `$onelib'");
2937 $where->set (INTERNAL->get);
2939 # Make sure we look at these.
2940 set_seen ($xlib . '_LDFLAGS');
2941 set_seen ($xlib . '_DEPENDENCIES');
2943 # Generate support for conditional object inclusion in
2944 # libraries.
2945 if (var ($xlib . '_LIBADD'))
2946 {
2947 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2948 {
2949 $seen_libobjs = 1;
2950 }
2951 }
2952 else
2953 {
2954 &define_variable ($xlib . "_LIBADD", '', $where);
2955 }
2957 reject_var ("${xlib}_LDADD",
2958 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2961 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2962 NONLIBTOOL => 0, LIBTOOL => 1);
2964 # Determine program to use for link.
2965 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2966 $vlink = verbose_flag ($vlink || 'GEN');
2968 my $rpathvar = "am_${xlib}_rpath";
2969 my $rpath = "\$($rpathvar)";
2970 foreach my $rcond ($instconds{$onelib}->conds)
2971 {
2972 my $val;
2973 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2974 || $instdirs{$onelib}{$rcond} eq 'noinst'
2975 || $instdirs{$onelib}{$rcond} eq 'check')
2976 {
2977 # It's an EXTRA_ library, so we can't specify -rpath,
2978 # because we don't know where the library will end up.
2979 # The user probably knows, but generally speaking automake
2980 # doesn't -- and in fact configure could decide
2981 # dynamically between two different locations.
2982 $val = '';
2983 }
2984 else
2985 {
2986 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2987 $val .= $instsubdirs{$onelib}{$rcond}
2988 if defined $instsubdirs{$onelib}{$rcond};
2989 }
2990 if ($rcond->true)
2991 {
2992 # If $rcond is true there is only one condition and
2993 # there is no point defining an helper variable.
2994 $rpath = $val;
2995 }
2996 else
2997 {
2998 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2999 }
3000 }
3002 # If the resulting library lies into a subdirectory,
3003 # make sure this directory will exist.
3004 my $dirstamp = require_build_directory_maybe ($onelib);
3006 # Remember to cleanup .libs/ in this directory.
3007 my $dirname = dirname $onelib;
3008 $libtool_clean_directories{$dirname} = 1;
3010 $output_rules .= &file_contents ('ltlibrary',
3011 $where,
3012 LTLIBRARY => $onelib,
3013 XLTLIBRARY => $xlib,
3014 RPATH => $rpath,
3015 XLINK => $xlink,
3016 VERBOSE => $vlink,
3017 DIRSTAMP => $dirstamp);
3018 if ($seen_libobjs)
3019 {
3020 if (var ($xlib . '_LIBADD'))
3021 {
3022 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3023 }
3024 }
3025 }
3026 }
3028 # See if any _SOURCES variable were misspelled.
3029 sub check_typos ()
3030 {
3031 # It is ok if the user sets this particular variable.
3032 set_seen 'AM_LDFLAGS';
3034 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3035 {
3036 foreach my $var (variables $primary)
3037 {
3038 my $varname = $var->name;
3039 # A configure variable is always legitimate.
3040 next if exists $configure_vars{$varname};
3042 for my $cond ($var->conditions->conds)
3043 {
3044 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3045 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3046 . " program or\nlibrary has `$1' as canonical name"
3047 . " (possible typo)")
3048 unless $var->rdef ($cond)->seen;
3049 }
3050 }
3051 }
3052 }
3055 # Handle scripts.
3056 sub handle_scripts
3057 {
3058 # NOTE we no longer automatically clean SCRIPTS, because it is
3059 # useful to sometimes distribute scripts verbatim. This happens
3060 # e.g. in Automake itself.
3061 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3062 'bin', 'sbin', 'libexec', 'pkgdata',
3063 'noinst', 'check');
3064 }
3069 ## ------------------------ ##
3070 ## Handling Texinfo files. ##
3071 ## ------------------------ ##
3073 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3074 # &scan_texinfo_file ($FILENAME)
3075 # ------------------------------
3076 # $OUTFILE - name of the info file produced by $FILENAME.
3077 # $VFILE - name of the version.texi file used (undef if none).
3078 # @CLEAN_FILES - list of byproducts (indexes etc.)
3079 sub scan_texinfo_file ($)
3080 {
3081 my ($filename) = @_;
3083 # Some of the following extensions are always created, no matter
3084 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3085 # are only created when they are used. We used to scan $FILENAME
3086 # for their use, but that is not enough: they could be used in
3087 # included files. We can't scan included files because we don't
3088 # know the include path. Therefore we always erase these files, no
3089 # matter whether they are used or not.
3090 #
3091 # (tmp is only created if an @macro is used and a certain e-TeX
3092 # feature is not available.)
3093 my %clean_suffixes =
3094 map { $_ => 1 } (qw(aux log toc tmp
3095 cp cps
3096 fn fns
3097 ky kys
3098 vr vrs
3099 tp tps
3100 pg pgs)); # grep 'new.*index' texinfo.tex
3102 my $texi = new Automake::XFile "< $filename";
3103 verb "reading $filename";
3105 my ($outfile, $vfile);
3106 while ($_ = $texi->getline)
3107 {
3108 if (/^\@setfilename +(\S+)/)
3109 {
3110 # Honor only the first @setfilename. (It's possible to have
3111 # more occurrences later if the manual shows examples of how
3112 # to use @setfilename...)
3113 next if $outfile;
3115 $outfile = $1;
3116 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3117 {
3118 error ("$filename:$.",
3119 "output `$outfile' has unrecognized extension");
3120 return;
3121 }
3122 }
3123 # A "version.texi" file is actually any file whose name matches
3124 # "vers*.texi".
3125 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3126 {
3127 $vfile = $1;
3128 }
3130 # Try to find new or unused indexes.
3132 # Creating a new category of index.
3133 elsif (/^\@def(code)?index (\w+)/)
3134 {
3135 $clean_suffixes{$2} = 1;
3136 $clean_suffixes{"$2s"} = 1;
3137 }
3139 # Merging an index into an another.
3140 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3141 {
3142 delete $clean_suffixes{"$2s"};
3143 $clean_suffixes{"$3s"} = 1;
3144 }
3146 }
3148 if (! $outfile)
3149 {
3150 err_am "`$filename' missing \@setfilename";
3151 return;
3152 }
3154 my $infobase = basename ($filename);
3155 $infobase =~ s/\.te?xi(nfo)?$//;
3156 return ($outfile, $vfile,
3157 map { "$infobase.$_" } (sort keys %clean_suffixes));
3158 }
3161 # ($DIRSTAMP, @CLEAN_FILES)
3162 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3163 # ------------------------------------------------------------------
3164 # SOURCE - the source Texinfo file
3165 # DEST - the destination Info file
3166 # INSRC - wether DEST should be built in the source tree
3167 # DEPENDENCIES - known dependencies
3168 sub output_texinfo_build_rules ($$$@)
3169 {
3170 my ($source, $dest, $insrc, @deps) = @_;
3172 # Split `a.texi' into `a' and `.texi'.
3173 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3174 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3176 $ssfx ||= "";
3177 $dsfx ||= "";
3179 # We can output two kinds of rules: the "generic" rules use Make
3180 # suffix rules and are appropriate when $source and $dest do not lie
3181 # in a sub-directory; the "specific" rules are needed in the other
3182 # case.
3183 #
3184 # The former are output only once (this is not really apparent here,
3185 # but just remember that some logic deeper in Automake will not
3186 # output the same rule twice); while the later need to be output for
3187 # each Texinfo source.
3188 my $generic;
3189 my $makeinfoflags;
3190 my $sdir = dirname $source;
3191 if ($sdir eq '.' && dirname ($dest) eq '.')
3192 {
3193 $generic = 1;
3194 $makeinfoflags = '-I $(srcdir)';
3195 }
3196 else
3197 {
3198 $generic = 0;
3199 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3200 }
3202 # A directory can contain two kinds of info files: some built in the
3203 # source tree, and some built in the build tree. The rules are
3204 # different in each case. However we cannot output two different
3205 # set of generic rules. Because in-source builds are more usual, we
3206 # use generic rules in this case and fall back to "specific" rules
3207 # for build-dir builds. (It should not be a problem to invert this
3208 # if needed.)
3209 $generic = 0 unless $insrc;
3211 # We cannot use a suffix rule to build info files with an empty
3212 # extension. Otherwise we would output a single suffix inference
3213 # rule, with separate dependencies, as in
3214 #
3215 # .texi:
3216 # $(MAKEINFO) ...
3217 # foo.info: foo.texi
3218 #
3219 # which confuse Solaris make. (See the Autoconf manual for
3220 # details.) Therefore we use a specific rule in this case. This
3221 # applies to info files only (dvi and pdf files always have an
3222 # extension).
3223 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3225 # If the resulting file lie into a subdirectory,
3226 # make sure this directory will exist.
3227 my $dirstamp = require_build_directory_maybe ($dest);
3229 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3231 $output_rules .= file_contents ('texibuild',
3232 new Automake::Location,
3233 DEPS => "@deps",
3234 DEST_PREFIX => $dpfx,
3235 DEST_INFO_PREFIX => $dipfx,
3236 DEST_SUFFIX => $dsfx,
3237 DIRSTAMP => $dirstamp,
3238 GENERIC => $generic,
3239 GENERIC_INFO => $generic_info,
3240 INSRC => $insrc,
3241 MAKEINFOFLAGS => $makeinfoflags,
3242 SOURCE => ($generic
3243 ? '$<' : $source),
3244 SOURCE_INFO => ($generic_info
3245 ? '$<' : $source),
3246 SOURCE_REAL => $source,
3247 SOURCE_SUFFIX => $ssfx,
3248 );
3249 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3250 }
3253 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3254 # handle_texinfo_helper ($info_texinfos)
3255 # --------------------------------------
3256 # Handle all Texinfo source; helper for handle_texinfo.
3257 sub handle_texinfo_helper ($)
3258 {
3259 my ($info_texinfos) = @_;
3260 my (@infobase, @info_deps_list, @texi_deps);
3261 my %versions;
3262 my $done = 0;
3263 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3265 # Build a regex matching user-cleaned files.
3266 my $d = var 'DISTCLEANFILES';
3267 my $c = var 'CLEANFILES';
3268 my @f = ();
3269 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3270 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3271 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3272 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3274 foreach my $texi
3275 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3276 {
3277 my $infobase = $texi;
3278 $infobase =~ s/\.(txi|texinfo|texi)$//;
3280 if ($infobase eq $texi)
3281 {
3282 # FIXME: report line number.
3283 err_am "texinfo file `$texi' has unrecognized extension";
3284 next;
3285 }
3287 push @infobase, $infobase;
3289 # If 'version.texi' is referenced by input file, then include
3290 # automatic versioning capability.
3291 my ($out_file, $vtexi, @clean_files) =
3292 scan_texinfo_file ("$relative_dir/$texi")
3293 or next;
3294 push (@mostly_cleans, @clean_files);
3296 # If the Texinfo source is in a subdirectory, create the
3297 # resulting info in this subdirectory. If it is in the current
3298 # directory, try hard to not prefix "./" because it breaks the
3299 # generic rules.
3300 my $outdir = dirname ($texi) . '/';
3301 $outdir = "" if $outdir eq './';
3302 $out_file = $outdir . $out_file;
3304 # Until Automake 1.6.3, .info files were built in the
3305 # source tree. This was an obstacle to the support of
3306 # non-distributed .info files, and non-distributed .texi
3307 # files.
3308 #
3309 # * Non-distributed .texi files is important in some packages
3310 # where .texi files are built at make time, probably using
3311 # other binaries built in the package itself, maybe using
3312 # tools or information found on the build host. Because
3313 # these files are not distributed they are always rebuilt
3314 # at make time; they should therefore not lie in the source
3315 # directory. One plan was to support this using
3316 # nodist_info_TEXINFOS or something similar. (Doing this
3317 # requires some sanity checks. For instance Automake should
3318 # not allow:
3319 # dist_info_TEXINFOS = foo.texi
3320 # nodist_foo_TEXINFOS = included.texi
3321 # because a distributed file should never depend on a
3322 # non-distributed file.)
3323 #
3324 # * If .texi files are not distributed, then .info files should
3325 # not be distributed either. There are also cases where one
3326 # wants to distribute .texi files, but does not want to
3327 # distribute the .info files. For instance the Texinfo package
3328 # distributes the tool used to build these files; it would
3329 # be a waste of space to distribute them. It's not clear
3330 # which syntax we should use to indicate that .info files should
3331 # not be distributed. Akim Demaille suggested that eventually
3332 # we switch to a new syntax:
3333 # | Maybe we should take some inspiration from what's already
3334 # | done in the rest of Automake. Maybe there is too much
3335 # | syntactic sugar here, and you want
3336 # | nodist_INFO = bar.info
3337 # | dist_bar_info_SOURCES = bar.texi
3338 # | bar_texi_DEPENDENCIES = foo.texi
3339 # | with a bit of magic to have bar.info represent the whole
3340 # | bar*info set. That's a lot more verbose that the current
3341 # | situation, but it is # not new, hence the user has less
3342 # | to learn.
3343 # |
3344 # | But there is still too much room for meaningless specs:
3345 # | nodist_INFO = bar.info
3346 # | dist_bar_info_SOURCES = bar.texi
3347 # | dist_PS = bar.ps something-written-by-hand.ps
3348 # | nodist_bar_ps_SOURCES = bar.texi
3349 # | bar_texi_DEPENDENCIES = foo.texi
3350 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3351 #
3352 # Back to the point, it should be clear that in order to support
3353 # non-distributed .info files, we need to build them in the
3354 # build tree, not in the source tree (non-distributed .texi
3355 # files are less of a problem, because we do not output build
3356 # rules for them). In Automake 1.7 .info build rules have been
3357 # largely cleaned up so that .info files get always build in the
3358 # build tree, even when distributed. The idea was that
3359 # (1) if during a VPATH build the .info file was found to be
3360 # absent or out-of-date (in the source tree or in the
3361 # build tree), Make would rebuild it in the build tree.
3362 # If an up-to-date source-tree of the .info file existed,
3363 # make would not rebuild it in the build tree.
3364 # (2) having two copies of .info files, one in the source tree
3365 # and one (newer) in the build tree is not a problem
3366 # because `make dist' always pick files in the build tree
3367 # first.
3368 # However it turned out the be a bad idea for several reasons:
3369 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3370 # like GNU Make on point (1) above. These implementations
3371 # of Make would always rebuild .info files in the build
3372 # tree, even if such files were up to date in the source
3373 # tree. Consequently, it was impossible to perform a VPATH
3374 # build of a package containing Texinfo files using these
3375 # Make implementations.
3376 # (Refer to the Autoconf Manual, section "Limitation of
3377 # Make", paragraph "VPATH", item "target lookup", for
3378 # an account of the differences between these
3379 # implementations.)
3380 # * The GNU Coding Standards require these files to be built
3381 # in the source-tree (when they are distributed, that is).
3382 # * Keeping a fresher copy of distributed files in the
3383 # build tree can be annoying during development because
3384 # - if the files is kept under CVS, you really want it
3385 # to be updated in the source tree
3386 # - it is confusing that `make distclean' does not erase
3387 # all files in the build tree.
3388 #
3389 # Consequently, starting with Automake 1.8, .info files are
3390 # built in the source tree again. Because we still plan to
3391 # support non-distributed .info files at some point, we
3392 # have a single variable ($INSRC) that controls whether
3393 # the current .info file must be built in the source tree
3394 # or in the build tree. Actually this variable is switched
3395 # off for .info files that appear to be cleaned; this is
3396 # for backward compatibility with package such as Texinfo,
3397 # which do things like
3398 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3399 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3400 # # Do not create info files for distribution.
3401 # dist-info:
3402 # in order not to distribute .info files.
3403 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3405 my $soutdir = '$(srcdir)/' . $outdir;
3406 $outdir = $soutdir if $insrc;
3408 # If user specified file_TEXINFOS, then use that as explicit
3409 # dependency list.
3410 @texi_deps = ();
3411 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3413 my $canonical = canonicalize ($infobase);
3414 if (var ($canonical . "_TEXINFOS"))
3415 {
3416 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3417 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3418 }
3420 my ($dirstamp, @cfiles) =
3421 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3422 push (@texi_cleans, @cfiles);
3424 push (@info_deps_list, $out_file);
3426 # If a vers*.texi file is needed, emit the rule.
3427 if ($vtexi)
3428 {
3429 err_am ("`$vtexi', included in `$texi', "
3430 . "also included in `$versions{$vtexi}'")
3431 if defined $versions{$vtexi};
3432 $versions{$vtexi} = $texi;
3434 # We number the stamp-vti files. This is doable since the
3435 # actual names don't matter much. We only number starting
3436 # with the second one, so that the common case looks nice.
3437 my $vti = ($done ? $done : 'vti');
3438 ++$done;
3440 # This is ugly, but it is our historical practice.
3441 if ($config_aux_dir_set_in_configure_ac)
3442 {
3443 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3444 'mdate-sh');
3445 }
3446 else
3447 {
3448 require_file_with_macro (TRUE, 'info_TEXINFOS',
3449 FOREIGN, 'mdate-sh');
3450 }
3452 my $conf_dir;
3453 if ($config_aux_dir_set_in_configure_ac)
3454 {
3455 $conf_dir = "$am_config_aux_dir/";
3456 }
3457 else
3458 {
3459 $conf_dir = '$(srcdir)/';
3460 }
3461 $output_rules .= file_contents ('texi-vers',
3462 new Automake::Location,
3463 TEXI => $texi,
3464 VTI => $vti,
3465 STAMPVTI => "${soutdir}stamp-$vti",
3466 VTEXI => "$soutdir$vtexi",
3467 MDDIR => $conf_dir,
3468 DIRSTAMP => $dirstamp);
3469 }
3470 }
3472 # Handle location of texinfo.tex.
3473 my $need_texi_file = 0;
3474 my $texinfodir;
3475 if (var ('TEXINFO_TEX'))
3476 {
3477 # The user defined TEXINFO_TEX so assume he knows what he is
3478 # doing.
3479 $texinfodir = ('$(srcdir)/'
3480 . dirname (variable_value ('TEXINFO_TEX')));
3481 }
3482 elsif (option 'cygnus')
3483 {
3484 $texinfodir = '$(top_srcdir)/../texinfo';
3485 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3486 }
3487 elsif ($config_aux_dir_set_in_configure_ac)
3488 {
3489 $texinfodir = $am_config_aux_dir;
3490 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3491 $need_texi_file = 2; # so that we require_conf_file later
3492 }
3493 else
3494 {
3495 $texinfodir = '$(srcdir)';
3496 $need_texi_file = 1;
3497 }
3498 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3500 push (@dist_targets, 'dist-info');
3502 if (! option 'no-installinfo')
3503 {
3504 # Make sure documentation is made and installed first. Use
3505 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3506 # get run twice during "make all".
3507 unshift (@all, '$(INFO_DEPS)');
3508 }
3510 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3511 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3512 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3513 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3515 # This next isn't strictly needed now -- the places that look here
3516 # could easily be changed to look in info_TEXINFOS. But this is
3517 # probably better, in case noinst_TEXINFOS is ever supported.
3518 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3520 # Do some error checking. Note that this file is not required
3521 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3522 # up above.
3523 if ($need_texi_file && ! option 'no-texinfo.tex')
3524 {
3525 if ($need_texi_file > 1)
3526 {
3527 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3528 'texinfo.tex');
3529 }
3530 else
3531 {
3532 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3533 'texinfo.tex');
3534 }
3535 }
3537 return (makefile_wrap ("", "\t ", @mostly_cleans),
3538 makefile_wrap ("", "\t ", @texi_cleans),
3539 makefile_wrap ("", "\t ", @maint_cleans));
3540 }
3543 # handle_texinfo ()
3544 # -----------------
3545 # Handle all Texinfo source.
3546 sub handle_texinfo ()
3547 {
3548 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3549 # FIXME: I think this is an obsolete future feature name.
3550 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3552 my $info_texinfos = var ('info_TEXINFOS');
3553 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3554 if ($info_texinfos)
3555 {
3556 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3557 chomp $mostlyclean;
3558 chomp $clean;
3559 chomp $maintclean;
3560 }
3562 $output_rules .= file_contents ('texinfos',
3563 new Automake::Location,
3564 MOSTLYCLEAN => $mostlyclean,
3565 TEXICLEAN => $clean,
3566 MAINTCLEAN => $maintclean,
3567 'LOCAL-TEXIS' => !!$info_texinfos);
3568 }
3571 # Handle any man pages.
3572 sub handle_man_pages
3573 {
3574 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3576 # Find all the sections in use. We do this by first looking for
3577 # "standard" sections, and then looking for any additional
3578 # sections used in man_MANS.
3579 my (%sections, %notrans_sections, %trans_sections,
3580 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3581 # We handle nodist_ for uniformity. man pages aren't distributed
3582 # by default so it isn't actually very important.
3583 foreach my $npfx ('', 'notrans_')
3584 {
3585 foreach my $pfx ('', 'dist_', 'nodist_')
3586 {
3587 # Add more sections as needed.
3588 foreach my $section ('0'..'9', 'n', 'l')
3589 {
3590 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3591 if (var ($varname))
3592 {
3593 $sections{$section} = 1;
3594 $varname = '$(' . $varname . ')';
3595 if ($npfx eq 'notrans_')
3596 {
3597 $notrans_sections{$section} = 1;
3598 $notrans_sect_vars{$varname} = 1;
3599 }
3600 else
3601 {
3602 $trans_sections{$section} = 1;
3603 $trans_sect_vars{$varname} = 1;
3604 }
3606 &push_dist_common ($varname)
3607 if $pfx eq 'dist_';
3608 }
3609 }
3611 my $varname = $npfx . $pfx . 'man_MANS';
3612 my $var = var ($varname);
3613 if ($var)
3614 {
3615 foreach ($var->value_as_list_recursive)
3616 {
3617 # A page like `foo.1c' goes into man1dir.
3618 if (/\.([0-9a-z])([a-z]*)$/)
3619 {
3620 $sections{$1} = 1;
3621 if ($npfx eq 'notrans_')
3622 {
3623 $notrans_sections{$1} = 1;
3624 }
3625 else
3626 {
3627 $trans_sections{$1} = 1;
3628 }
3629 }
3630 }
3632 $varname = '$(' . $varname . ')';
3633 if ($npfx eq 'notrans_')
3634 {
3635 $notrans_vars{$varname} = 1;
3636 }
3637 else
3638 {
3639 $trans_vars{$varname} = 1;
3640 }
3641 &push_dist_common ($varname)
3642 if $pfx eq 'dist_';
3643 }
3644 }
3645 }
3647 return unless %sections;
3649 my @unsorted_deps;
3651 # Build section independent variables.
3652 my $have_notrans = %notrans_vars;
3653 my @notrans_list = sort keys %notrans_vars;
3654 my $have_trans = %trans_vars;
3655 my @trans_list = sort keys %trans_vars;
3657 # Now for each section, generate an install and uninstall rule.
3658 # Sort sections so output is deterministic.
3659 foreach my $section (sort keys %sections)
3660 {
3661 # Build section dependent variables.
3662 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3663 my $trans_mans = $have_trans || exists $trans_sections{$section};
3664 my (%notrans_this_sect, %trans_this_sect);
3665 my $expr = 'man' . $section . '_MANS';
3666 foreach my $varname (keys %notrans_sect_vars)
3667 {
3668 if ($varname =~ /$expr/)
3669 {
3670 $notrans_this_sect{$varname} = 1;
3671 }
3672 }
3673 foreach my $varname (keys %trans_sect_vars)
3674 {
3675 if ($varname =~ /$expr/)
3676 {
3677 $trans_this_sect{$varname} = 1;
3678 }
3679 }
3680 my @notrans_sect_list = sort keys %notrans_this_sect;
3681 my @trans_sect_list = sort keys %trans_this_sect;
3682 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3683 keys %notrans_this_sect, keys %trans_this_sect);
3684 my @deps = sort @unsorted_deps;
3685 $output_rules .= &file_contents ('mans',
3686 new Automake::Location,
3687 SECTION => $section,
3688 DEPS => "@deps",
3689 NOTRANS_MANS => $notrans_mans,
3690 NOTRANS_SECT_LIST => "@notrans_sect_list",
3691 HAVE_NOTRANS => $have_notrans,
3692 NOTRANS_LIST => "@notrans_list",
3693 TRANS_MANS => $trans_mans,
3694 TRANS_SECT_LIST => "@trans_sect_list",
3695 HAVE_TRANS => $have_trans,
3696 TRANS_LIST => "@trans_list");
3697 }
3699 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3700 keys %notrans_sect_vars, keys %trans_sect_vars);
3701 my @mans = sort @unsorted_deps;
3702 $output_vars .= file_contents ('mans-vars',
3703 new Automake::Location,
3704 MANS => "@mans");
3706 push (@all, '$(MANS)')
3707 unless option 'no-installman';
3708 }
3710 # Handle DATA variables.
3711 sub handle_data
3712 {
3713 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3714 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3715 'sysconf', 'sharedstate', 'localstate',
3716 'pkgdata', 'lisp', 'noinst', 'check');
3717 }
3719 # Handle TAGS.
3720 sub handle_tags
3721 {
3722 my @tag_deps = ();
3723 my @ctag_deps = ();
3724 if (var ('SUBDIRS'))
3725 {
3726 $output_rules .= ("tags-recursive:\n"
3727 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3728 # Never fail here if a subdir fails; it
3729 # isn't important.
3730 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3731 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3732 . "\tdone\n");
3733 push (@tag_deps, 'tags-recursive');
3734 &depend ('.PHONY', 'tags-recursive');
3735 &depend ('.MAKE', 'tags-recursive');
3737 $output_rules .= ("ctags-recursive:\n"
3738 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3739 # Never fail here if a subdir fails; it
3740 # isn't important.
3741 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3742 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3743 . "\tdone\n");
3744 push (@ctag_deps, 'ctags-recursive');
3745 &depend ('.PHONY', 'ctags-recursive');
3746 &depend ('.MAKE', 'ctags-recursive');
3747 }
3749 if (&saw_sources_p (1)
3750 || var ('ETAGS_ARGS')
3751 || @tag_deps)
3752 {
3753 my @config;
3754 foreach my $spec (@config_headers)
3755 {
3756 my ($out, @ins) = split_config_file_spec ($spec);
3757 foreach my $in (@ins)
3758 {
3759 # If the config header source is in this directory,
3760 # require it.
3761 push @config, basename ($in)
3762 if $relative_dir eq dirname ($in);
3763 }
3764 }
3765 $output_rules .= &file_contents ('tags',
3766 new Automake::Location,
3767 CONFIG => "@config",
3768 TAGSDIRS => "@tag_deps",
3769 CTAGSDIRS => "@ctag_deps");
3771 set_seen 'TAGS_DEPENDENCIES';
3772 }
3773 elsif (reject_var ('TAGS_DEPENDENCIES',
3774 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3775 . "without\nsources or `ETAGS_ARGS'"))
3776 {
3777 }
3778 else
3779 {
3780 # Every Makefile must define some sort of TAGS rule.
3781 # Otherwise, it would be possible for a top-level "make TAGS"
3782 # to fail because some subdirectory failed.
3783 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3784 # Ditto ctags.
3785 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3786 }
3787 }
3789 # Handle multilib support.
3790 sub handle_multilib
3791 {
3792 if ($seen_multilib && $relative_dir eq '.')
3793 {
3794 $output_rules .= &file_contents ('multilib', new Automake::Location);
3795 push (@all, 'all-multi');
3796 }
3797 }
3800 # user_phony_rule ($NAME)
3801 # -----------------------
3802 # Return false if rule $NAME does not exist. Otherwise,
3803 # declare it as phony, complete its definition (in case it is
3804 # conditional), and return its Automake::Rule instance.
3805 sub user_phony_rule ($)
3806 {
3807 my ($name) = @_;
3808 my $rule = rule $name;
3809 if ($rule)
3810 {
3811 depend ('.PHONY', $name);
3812 # Define $NAME in all condition where it is not already defined,
3813 # so that it is always OK to depend on $NAME.
3814 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3815 {
3816 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3817 $c, INTERNAL);
3818 $output_rules .= $c->subst_string . "$name:\n";
3819 }
3820 }
3821 return $rule;
3822 }
3825 # $BOOLEAN
3826 # &for_dist_common ($A, $B)
3827 # -------------------------
3828 # Subroutine for &handle_dist: sort files to dist.
3829 #
3830 # We put README first because it then becomes easier to make a
3831 # Usenet-compliant shar file (in these, README must be first).
3832 #
3833 # FIXME: do more ordering of files here.
3834 sub for_dist_common
3835 {
3836 return 0
3837 if $a eq $b;
3838 return -1
3839 if $a eq 'README';
3840 return 1
3841 if $b eq 'README';
3842 return $a cmp $b;
3843 }
3845 # handle_dist
3846 # -----------
3847 # Handle 'dist' target.
3848 sub handle_dist ()
3849 {
3850 # Substitutions for distdir.am
3851 my %transform;
3853 # Define DIST_SUBDIRS. This must always be done, regardless of the
3854 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3855 my $subdirs = var ('SUBDIRS');
3856 if ($subdirs)
3857 {
3858 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3859 # to all possible directories, and use it. If DIST_SUBDIRS is
3860 # defined, just use it.
3862 # Note that we check DIST_SUBDIRS first on purpose, so that
3863 # we don't call has_conditional_contents for now reason.
3864 # (In the past one project used so many conditional subdirectories
3865 # that calling has_conditional_contents on SUBDIRS caused
3866 # automake to grow to 150Mb -- this should not happen with
3867 # the current implementation of has_conditional_contents,
3868 # but it's more efficient to avoid the call anyway.)
3869 if (var ('DIST_SUBDIRS'))
3870 {
3871 }
3872 elsif ($subdirs->has_conditional_contents)
3873 {
3874 define_pretty_variable
3875 ('DIST_SUBDIRS', TRUE, INTERNAL,
3876 uniq ($subdirs->value_as_list_recursive));
3877 }
3878 else
3879 {
3880 # We always define this because that is what `distclean'
3881 # wants.
3882 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3883 '$(SUBDIRS)');
3884 }
3885 }
3887 # The remaining definitions are only required when a dist target is used.
3888 return if option 'no-dist';
3890 # At least one of the archive formats must be enabled.
3891 if ($relative_dir eq '.')
3892 {
3893 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3894 $archive_defined ||=
3895 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma xz);
3896 error (option 'no-dist-gzip',
3897 "no-dist-gzip specified but no dist-* specified, "
3898 . "at least one archive format must be enabled")
3899 unless $archive_defined;
3900 }
3902 # Look for common files that should be included in distribution.
3903 # If the aux dir is set, and it does not have a Makefile.am, then
3904 # we check for these files there as well.
3905 my $check_aux = 0;
3906 if ($relative_dir eq '.'
3907 && $config_aux_dir_set_in_configure_ac)
3908 {
3909 if (! &is_make_dir ($config_aux_dir))
3910 {
3911 $check_aux = 1;
3912 }
3913 }
3914 foreach my $cfile (@common_files)
3915 {
3916 if (dir_has_case_matching_file ($relative_dir, $cfile)
3917 # The file might be absent, but if it can be built it's ok.
3918 || rule $cfile)
3919 {
3920 &push_dist_common ($cfile);
3921 }
3923 # Don't use `elsif' here because a file might meaningfully
3924 # appear in both directories.
3925 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3926 {
3927 &push_dist_common ("$config_aux_dir/$cfile")
3928 }
3929 }
3931 # We might copy elements from $configure_dist_common to
3932 # %dist_common if we think we need to. If the file appears in our
3933 # directory, we would have discovered it already, so we don't
3934 # check that. But if the file is in a subdir without a Makefile,
3935 # we want to distribute it here if we are doing `.'. Ugly!
3936 if ($relative_dir eq '.')
3937 {
3938 foreach my $file (split (' ' , $configure_dist_common))
3939 {
3940 push_dist_common ($file)
3941 unless is_make_dir (dirname ($file));
3942 }
3943 }
3945 # Files to distributed. Don't use ->value_as_list_recursive
3946 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3947 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3948 @dist_common = uniq (sort for_dist_common (@dist_common));
3949 variable_delete 'DIST_COMMON';
3950 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3952 # Now that we've processed DIST_COMMON, disallow further attempts
3953 # to set it.
3954 $handle_dist_run = 1;
3956 # Scan EXTRA_DIST to see if we need to distribute anything from a
3957 # subdir. If so, add it to the list. I didn't want to do this
3958 # originally, but there were so many requests that I finally
3959 # relented.
3960 my $extra_dist = var ('EXTRA_DIST');
3962 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3963 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3965 # If the target `dist-hook' exists, make sure it is run. This
3966 # allows users to do random weird things to the distribution
3967 # before it is packaged up.
3968 push (@dist_targets, 'dist-hook')
3969 if user_phony_rule 'dist-hook';
3970 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3972 my $flm = option ('filename-length-max');
3973 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3975 $output_rules .= &file_contents ('distdir',
3976 new Automake::Location,
3977 %transform,
3978 FILENAME_FILTER => $filename_filter);
3979 }
3982 # check_directory ($NAME, $WHERE)
3983 # -------------------------------
3984 # Ensure $NAME is a directory, and that it uses a sane name.
3985 # Use $WHERE as a location in the diagnostic, if any.
3986 sub check_directory ($$)
3987 {
3988 my ($dir, $where) = @_;
3990 error $where, "required directory $relative_dir/$dir does not exist"
3991 unless -d "$relative_dir/$dir";
3993 # If an `obj/' directory exists, BSD make will enter it before
3994 # reading `Makefile'. Hence the `Makefile' in the current directory
3995 # will not be read.
3996 #
3997 # % cat Makefile
3998 # all:
3999 # echo Hello
4000 # % cat obj/Makefile
4001 # all:
4002 # echo World
4003 # % make # GNU make
4004 # echo Hello
4005 # Hello
4006 # % pmake # BSD make
4007 # echo World
4008 # World
4009 msg ('portability', $where,
4010 "naming a subdirectory `obj' causes troubles with BSD make")
4011 if $dir eq 'obj';
4013 # `aux' is probably the most important of the following forbidden name,
4014 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4015 msg ('portability', $where,
4016 "name `$dir' is reserved on W32 and DOS platforms")
4017 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4018 }
4020 # check_directories_in_var ($VARIABLE)
4021 # ------------------------------------
4022 # Recursively check all items in variables $VARIABLE as directories
4023 sub check_directories_in_var ($)
4024 {
4025 my ($var) = @_;
4026 $var->traverse_recursively
4027 (sub
4028 {
4029 my ($var, $val, $cond, $full_cond) = @_;
4030 check_directory ($val, $var->rdef ($cond)->location);
4031 return ();
4032 },
4033 undef,
4034 skip_ac_subst => 1);
4035 }
4037 # &handle_subdirs ()
4038 # ------------------
4039 # Handle subdirectories.
4040 sub handle_subdirs ()
4041 {
4042 my $subdirs = var ('SUBDIRS');
4043 return
4044 unless $subdirs;
4046 check_directories_in_var $subdirs;
4048 my $dsubdirs = var ('DIST_SUBDIRS');
4049 check_directories_in_var $dsubdirs
4050 if $dsubdirs;
4052 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4053 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4054 }
4057 # ($REGEN, @DEPENDENCIES)
4058 # &scan_aclocal_m4
4059 # ----------------
4060 # If aclocal.m4 creation is automated, return the list of its dependencies.
4061 sub scan_aclocal_m4 ()
4062 {
4063 my $regen_aclocal = 0;
4065 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4066 set_seen 'CONFIGURE_DEPENDENCIES';
4068 if (-f 'aclocal.m4')
4069 {
4070 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4072 my $aclocal = new Automake::XFile "< aclocal.m4";
4073 my $line = $aclocal->getline;
4074 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4075 }
4077 my @ac_deps = ();
4079 if (set_seen ('ACLOCAL_M4_SOURCES'))
4080 {
4081 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4082 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4083 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4084 . "It should be safe to simply remove it.");
4085 }
4087 # Note that it might be possible that aclocal.m4 doesn't exist but
4088 # should be auto-generated. This case probably isn't very
4089 # important.
4091 return ($regen_aclocal, @ac_deps);
4092 }
4095 # Helper function for substitute_ac_subst_variables.
4096 sub substitute_ac_subst_variables_worker($)
4097 {
4098 my ($token) = @_;
4099 return "\@$token\@" if var $token;
4100 return "\${$token\}";
4101 }
4103 # substitute_ac_subst_variables ($TEXT)
4104 # -------------------------------------
4105 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4106 # variable.
4107 sub substitute_ac_subst_variables ($)
4108 {
4109 my ($text) = @_;
4110 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4111 return $text;
4112 }
4114 # @DEPENDENCIES
4115 # &prepend_srcdir (@INPUTS)
4116 # -------------------------
4117 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4118 # if an input file has a directory part the same as the current
4119 # directory, then the directory part is simply replaced by $(srcdir).
4120 # But if the directory part is different, then $(top_srcdir) is
4121 # prepended.
4122 sub prepend_srcdir (@)
4123 {
4124 my (@inputs) = @_;
4125 my @newinputs;
4127 foreach my $single (@inputs)
4128 {
4129 if (dirname ($single) eq $relative_dir)
4130 {
4131 push (@newinputs, '$(srcdir)/' . basename ($single));
4132 }
4133 else
4134 {
4135 push (@newinputs, '$(top_srcdir)/' . $single);
4136 }
4137 }
4138 return @newinputs;
4139 }
4141 # @DEPENDENCIES
4142 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4143 # ---------------------------------------------------
4144 # Compute a list of dependencies appropriate for the rebuild
4145 # rule of
4146 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4147 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOS.
4148 sub rewrite_inputs_into_dependencies ($@)
4149 {
4150 my ($file, @inputs) = @_;
4151 my @res = ();
4153 for my $i (@inputs)
4154 {
4155 # We cannot create dependencies on shell variables.
4156 next if (substitute_ac_subst_variables $i) =~ /\$/;
4158 if (exists $ac_config_files_location{$i} && $i ne $file)
4159 {
4160 my $di = dirname $i;
4161 if ($di eq $relative_dir)
4162 {
4163 $i = basename $i;
4164 }
4165 # In the top-level Makefile we do not use $(top_builddir), because
4166 # we are already there, and since the targets are built without
4167 # a $(top_builddir), it helps BSD Make to match them with
4168 # dependencies.
4169 elsif ($relative_dir ne '.')
4170 {
4171 $i = '$(top_builddir)/' . $i;
4172 }
4173 }
4174 else
4175 {
4176 msg ('error', $ac_config_files_location{$file},
4177 "required file `$i' not found")
4178 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4179 ($i) = prepend_srcdir ($i);
4180 push_dist_common ($i);
4181 }
4182 push @res, $i;
4183 }
4184 return @res;
4185 }
4189 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4190 # ------------------------------------------------------------------
4191 # Handle remaking and configure stuff.
4192 # We need the name of the input file, to do proper remaking rules.
4193 sub handle_configure ($$$@)
4194 {
4195 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4197 prog_error 'empty @inputs'
4198 unless @inputs;
4200 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4201 $makefile_in);
4202 my $rel_makefile = basename $makefile;
4204 my $colon_infile = ':' . join (':', @inputs);
4205 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4206 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4207 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4208 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4209 @configure_deps, @aclocal_m4_deps,
4210 '$(top_srcdir)/' . $configure_ac);
4211 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4212 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4213 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4214 @configuredeps);
4216 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4217 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4219 $output_rules .= file_contents
4220 ('configure',
4221 new Automake::Location,
4222 MAKEFILE => $rel_makefile,
4223 'MAKEFILE-DEPS' => "@rewritten",
4224 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4225 'MAKEFILE-IN' => $rel_makefile_in,
4226 'MAKEFILE-IN-DEPS' => "@include_stack",
4227 'MAKEFILE-AM' => $rel_makefile_am,
4228 'AUTOMAKE-OPTIONS' => $automake_options,
4229 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4230 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4231 VERBOSE => verbose_flag ('GEN'));
4233 if ($relative_dir eq '.')
4234 {
4235 &push_dist_common ('acconfig.h')
4236 if -f 'acconfig.h';
4237 }
4239 # If we have a configure header, require it.
4240 my $hdr_index = 0;
4241 my @distclean_config;
4242 foreach my $spec (@config_headers)
4243 {
4244 $hdr_index += 1;
4245 # $CONFIG_H_PATH: config.h from top level.
4246 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4247 my $config_h_dir = dirname ($config_h_path);
4249 # If the header is in the current directory we want to build
4250 # the header here. Otherwise, if we're at the topmost
4251 # directory and the header's directory doesn't have a
4252 # Makefile, then we also want to build the header.
4253 if ($relative_dir eq $config_h_dir
4254 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4255 {
4256 my ($cn_sans_dir, $stamp_dir);
4257 if ($relative_dir eq $config_h_dir)
4258 {
4259 $cn_sans_dir = basename ($config_h_path);
4260 $stamp_dir = '';
4261 }
4262 else
4263 {
4264 $cn_sans_dir = $config_h_path;
4265 if ($config_h_dir eq '.')
4266 {
4267 $stamp_dir = '';
4268 }
4269 else
4270 {
4271 $stamp_dir = $config_h_dir . '/';
4272 }
4273 }
4275 # This will also distribute all inputs.
4276 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4278 # Cannot define rebuild rules for filenames with shell variables.
4279 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4281 # Header defined in this directory.
4282 my @files;
4283 if (-f $config_h_path . '.top')
4284 {
4285 push (@files, "$cn_sans_dir.top");
4286 }
4287 if (-f $config_h_path . '.bot')
4288 {
4289 push (@files, "$cn_sans_dir.bot");
4290 }
4292 push_dist_common (@files);
4294 # For now, acconfig.h can only appear in the top srcdir.
4295 if (-f 'acconfig.h')
4296 {
4297 push (@files, '$(top_srcdir)/acconfig.h');
4298 }
4300 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4301 $output_rules .=
4302 file_contents ('remake-hdr',
4303 new Automake::Location,
4304 FILES => "@files",
4305 CONFIG_H => $cn_sans_dir,
4306 CONFIG_HIN => $ins[0],
4307 CONFIG_H_DEPS => "@ins",
4308 CONFIG_H_PATH => $config_h_path,
4309 STAMP => "$stamp");
4311 push @distclean_config, $cn_sans_dir, $stamp;
4312 }
4313 }
4315 $output_rules .= file_contents ('clean-hdr',
4316 new Automake::Location,
4317 FILES => "@distclean_config")
4318 if @distclean_config;
4320 # Distribute and define mkinstalldirs only if it is already present
4321 # in the package, for backward compatibility (some people may still
4322 # use $(mkinstalldirs)).
4323 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4324 if (-f $mkidpath)
4325 {
4326 # Use require_file so that any existing script gets updated
4327 # by --force-missing.
4328 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4329 define_variable ('mkinstalldirs',
4330 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4331 }
4332 else
4333 {
4334 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4335 # at least one argument, and $(mkinstalldirs) used to work
4336 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4337 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4338 }
4340 reject_var ('CONFIG_HEADER',
4341 "`CONFIG_HEADER' is an anachronism; now determined "
4342 . "automatically\nfrom `$configure_ac'");
4344 my @config_h;
4345 foreach my $spec (@config_headers)
4346 {
4347 my ($out, @ins) = split_config_file_spec ($spec);
4348 # Generate CONFIG_HEADER define.
4349 if ($relative_dir eq dirname ($out))
4350 {
4351 push @config_h, basename ($out);
4352 }
4353 else
4354 {
4355 push @config_h, "\$(top_builddir)/$out";
4356 }
4357 }
4358 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4359 if @config_h;
4361 # Now look for other files in this directory which must be remade
4362 # by config.status, and generate rules for them.
4363 my @actual_other_files = ();
4364 # These get cleaned only in a VPATH build.
4365 my @actual_other_vpath_files = ();
4366 foreach my $lfile (@other_input_files)
4367 {
4368 my $file;
4369 my @inputs;
4370 if ($lfile =~ /^([^:]*):(.*)$/)
4371 {
4372 # This is the ":" syntax of AC_OUTPUT.
4373 $file = $1;
4374 @inputs = split (':', $2);
4375 }
4376 else
4377 {
4378 # Normal usage.
4379 $file = $lfile;
4380 @inputs = $file . '.in';
4381 }
4383 # Automake files should not be stored in here, but in %MAKE_LIST.
4384 prog_error ("$lfile in \@other_input_files\n"
4385 . "\@other_input_files = (@other_input_files)")
4386 if -f $file . '.am';
4388 my $local = basename ($file);
4390 # We skip files that aren't in this directory. However, if
4391 # the file's directory does not have a Makefile, and we are
4392 # currently doing `.', then we create a rule to rebuild the
4393 # file in the subdir.
4394 my $fd = dirname ($file);
4395 if ($fd ne $relative_dir)
4396 {
4397 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4398 {
4399 $local = $file;
4400 }
4401 else
4402 {
4403 next;
4404 }
4405 }
4407 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4409 # Cannot output rules for shell variables.
4410 next if (substitute_ac_subst_variables $local) =~ /\$/;
4412 my $condstr = '';
4413 my $cond = $ac_config_files_condition{$lfile};
4414 if (defined $cond)
4415 {
4416 $condstr = $cond->subst_string;
4417 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4418 $ac_config_files_location{$file});
4419 }
4420 $output_rules .= ($condstr . $local . ': '
4421 . '$(top_builddir)/config.status '
4422 . "@rewritten_inputs\n"
4423 . $condstr . "\t"
4424 . 'cd $(top_builddir) && '
4425 . '$(SHELL) ./config.status '
4426 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4427 . '$@'
4428 . "\n");
4429 push (@actual_other_files, $local);
4430 }
4432 # For links we should clean destinations and distribute sources.
4433 foreach my $spec (@config_links)
4434 {
4435 my ($link, $file) = split /:/, $spec;
4436 # Some people do AC_CONFIG_LINKS($computed). We only handle
4437 # the DEST:SRC form.
4438 next unless $file;
4439 my $where = $ac_config_files_location{$link};
4441 # Skip destinations that contain shell variables.
4442 if ((substitute_ac_subst_variables $link) !~ /\$/)
4443 {
4444 # We skip links that aren't in this directory. However, if
4445 # the link's directory does not have a Makefile, and we are
4446 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4447 # in `.'s Makefile.in.
4448 my $local = basename ($link);
4449 my $fd = dirname ($link);
4450 if ($fd ne $relative_dir)
4451 {
4452 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4453 {
4454 $local = $link;
4455 }
4456 else
4457 {
4458 $local = undef;
4459 }
4460 }
4461 if ($file ne $link)
4462 {
4463 push @actual_other_files, $local if $local;
4464 }
4465 else
4466 {
4467 push @actual_other_vpath_files, $local if $local;
4468 }
4469 }
4471 # Do not process sources that contain shell variables.
4472 if ((substitute_ac_subst_variables $file) !~ /\$/)
4473 {
4474 my $fd = dirname ($file);
4476 # We distribute files that are in this directory.
4477 # At the top-level (`.') we also distribute files whose
4478 # directory does not have a Makefile.
4479 if (($fd eq $relative_dir)
4480 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4481 {
4482 # The following will distribute $file as a side-effect when
4483 # it is appropriate (i.e., when $file is not already an output).
4484 # We do not need the result, just the side-effect.
4485 rewrite_inputs_into_dependencies ($link, $file);
4486 }
4487 }
4488 }
4490 # These files get removed by "make distclean".
4491 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4492 @actual_other_files);
4493 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4494 @actual_other_vpath_files);
4495 }
4497 # Handle C headers.
4498 sub handle_headers
4499 {
4500 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4501 'oldinclude', 'pkginclude',
4502 'noinst', 'check');
4503 foreach (@r)
4504 {
4505 next unless $_->[1] =~ /\..*$/;
4506 &saw_extension ($&);
4507 }
4508 }
4510 sub handle_gettext
4511 {
4512 return if ! $seen_gettext || $relative_dir ne '.';
4514 my $subdirs = var 'SUBDIRS';
4516 if (! $subdirs)
4517 {
4518 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4519 return;
4520 }
4522 # Perform some sanity checks to help users get the right setup.
4523 # We disable these tests when po/ doesn't exist in order not to disallow
4524 # unusual gettext setups.
4525 #
4526 # Bruno Haible:
4527 # | The idea is:
4528 # |
4529 # | 1) If a package doesn't have a directory po/ at top level, it
4530 # | will likely have multiple po/ directories in subpackages.
4531 # |
4532 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4533 # | is used without 'external'. It is also useful to warn for the
4534 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4535 # | warnings apply only to the usual layout of packages, therefore
4536 # | they should both be disabled if no po/ directory is found at
4537 # | top level.
4539 if (-d 'po')
4540 {
4541 my @subdirs = $subdirs->value_as_list_recursive;
4543 msg_var ('syntax', $subdirs,
4544 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4545 if ! grep ($_ eq 'po', @subdirs);
4547 # intl/ is not required when AM_GNU_GETTEXT is called with the
4548 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4549 msg_var ('syntax', $subdirs,
4550 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4551 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4552 && ! grep ($_ eq 'intl', @subdirs));
4554 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4555 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4556 msg_var ('syntax', $subdirs,
4557 "`intl' should not be in SUBDIRS when "
4558 . "AM_GNU_GETTEXT([external]) is used")
4559 if ($seen_gettext_external && ! $seen_gettext_intl
4560 && grep ($_ eq 'intl', @subdirs));
4561 }
4563 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4564 }
4566 # Handle footer elements.
4567 sub handle_footer
4568 {
4569 reject_rule ('.SUFFIXES',
4570 "use variable `SUFFIXES', not target `.SUFFIXES'");
4572 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4573 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4574 # anything else, by sticking it right after the default: target.
4575 $output_header .= ".SUFFIXES:\n";
4576 my $suffixes = var 'SUFFIXES';
4577 my @suffixes = Automake::Rule::suffixes;
4578 if (@suffixes || $suffixes)
4579 {
4580 # Make sure SUFFIXES has unique elements. Sort them to ensure
4581 # the output remains consistent. However, $(SUFFIXES) is
4582 # always at the start of the list, unsorted. This is done
4583 # because make will choose rules depending on the ordering of
4584 # suffixes, and this lets the user have some control. Push
4585 # actual suffixes, and not $(SUFFIXES). Some versions of make
4586 # do not like variable substitutions on the .SUFFIXES line.
4587 my @user_suffixes = ($suffixes
4588 ? $suffixes->value_as_list_recursive : ());
4590 my %suffixes = map { $_ => 1 } @suffixes;
4591 delete @suffixes{@user_suffixes};
4593 $output_header .= (".SUFFIXES: "
4594 . join (' ', @user_suffixes, sort keys %suffixes)
4595 . "\n");
4596 }
4598 $output_trailer .= file_contents ('footer', new Automake::Location);
4599 }
4602 # Generate `make install' rules.
4603 sub handle_install ()
4604 {
4605 $output_rules .= &file_contents
4606 ('install',
4607 new Automake::Location,
4608 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4609 ? (" \$(BUILT_SOURCES)\n"
4610 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4611 : ''),
4612 'installdirs-local' => (user_phony_rule 'installdirs-local'
4613 ? ' installdirs-local' : ''),
4614 am__installdirs => variable_value ('am__installdirs') || '');
4615 }
4618 # Deal with all and all-am.
4619 sub handle_all ($)
4620 {
4621 my ($makefile) = @_;
4623 # Output `all-am'.
4625 # Put this at the beginning for the sake of non-GNU makes. This
4626 # is still wrong if these makes can run parallel jobs. But it is
4627 # right enough.
4628 unshift (@all, basename ($makefile));
4630 foreach my $spec (@config_headers)
4631 {
4632 my ($out, @ins) = split_config_file_spec ($spec);
4633 push (@all, basename ($out))
4634 if dirname ($out) eq $relative_dir;
4635 }
4637 # Install `all' hooks.
4638 push (@all, "all-local")
4639 if user_phony_rule "all-local";
4641 &pretty_print_rule ("all-am:", "\t\t", @all);
4642 &depend ('.PHONY', 'all-am', 'all');
4645 # Output `all'.
4647 my @local_headers = ();
4648 push @local_headers, '$(BUILT_SOURCES)'
4649 if var ('BUILT_SOURCES');
4650 foreach my $spec (@config_headers)
4651 {
4652 my ($out, @ins) = split_config_file_spec ($spec);
4653 push @local_headers, basename ($out)
4654 if dirname ($out) eq $relative_dir;
4655 }
4657 if (@local_headers)
4658 {
4659 # We need to make sure config.h is built before we recurse.
4660 # We also want to make sure that built sources are built
4661 # before any ordinary `all' targets are run. We can't do this
4662 # by changing the order of dependencies to the "all" because
4663 # that breaks when using parallel makes. Instead we handle
4664 # things explicitly.
4665 $output_all .= ("all: @local_headers"
4666 . "\n\t"
4667 . '$(MAKE) $(AM_MAKEFLAGS) '
4668 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4669 . "\n\n");
4670 depend ('.MAKE', 'all');
4671 }
4672 else
4673 {
4674 $output_all .= "all: " . (var ('SUBDIRS')
4675 ? 'all-recursive' : 'all-am') . "\n\n";
4676 }
4677 }
4680 # &do_check_merge_target ()
4681 # -------------------------
4682 # Handle check merge target specially.
4683 sub do_check_merge_target ()
4684 {
4685 # Include user-defined local form of target.
4686 push @check_tests, 'check-local'
4687 if user_phony_rule 'check-local';
4689 # In --cygnus mode, check doesn't depend on all.
4690 if (option 'cygnus')
4691 {
4692 # Just run the local check rules.
4693 pretty_print_rule ('check-am:', "\t\t", @check);
4694 }
4695 else
4696 {
4697 # The check target must depend on the local equivalent of
4698 # `all', to ensure all the primary targets are built. Then it
4699 # must build the local check rules.
4700 $output_rules .= "check-am: all-am\n";
4701 if (@check)
4702 {
4703 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4704 @check);
4705 depend ('.MAKE', 'check-am');
4706 }
4707 }
4708 if (@check_tests)
4709 {
4710 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4711 @check_tests);
4712 depend ('.MAKE', 'check-am');
4713 }
4715 depend '.PHONY', 'check', 'check-am';
4716 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4717 $output_rules .= ("check: "
4718 . (var ('BUILT_SOURCES')
4719 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4720 : '')
4721 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4722 . "\n");
4723 depend ('.MAKE', 'check')
4724 if var ('BUILT_SOURCES');
4725 }
4727 # handle_clean ($MAKEFILE)
4728 # ------------------------
4729 # Handle all 'clean' targets.
4730 sub handle_clean ($)
4731 {
4732 my ($makefile) = @_;
4734 # Clean the files listed in user variables if they exist.
4735 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4736 if var ('MOSTLYCLEANFILES');
4737 $clean_files{'$(CLEANFILES)'} = CLEAN
4738 if var ('CLEANFILES');
4739 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4740 if var ('DISTCLEANFILES');
4741 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4742 if var ('MAINTAINERCLEANFILES');
4744 # Built sources are automatically removed by maintainer-clean.
4745 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4746 if var ('BUILT_SOURCES');
4748 # Compute a list of "rm"s to run for each target.
4749 my %rms = (MOSTLY_CLEAN, [],
4750 CLEAN, [],
4751 DIST_CLEAN, [],
4752 MAINTAINER_CLEAN, []);
4754 foreach my $file (keys %clean_files)
4755 {
4756 my $when = $clean_files{$file};
4757 prog_error 'invalid entry in %clean_files'
4758 unless exists $rms{$when};
4760 my $rm = "rm -f $file";
4761 # If file is a variable, make sure when don't call `rm -f' without args.
4762 $rm ="test -z \"$file\" || $rm"
4763 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4765 push @{$rms{$when}}, "\t-$rm\n";
4766 }
4768 $output_rules .= &file_contents
4769 ('clean',
4770 new Automake::Location,
4771 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4772 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4773 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4774 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4775 MAKEFILE => basename $makefile,
4776 );
4777 }
4780 # &target_cmp ($A, $B)
4781 # --------------------
4782 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4783 # other `.TARGETS' be last.
4784 sub target_cmp
4785 {
4786 return 0 if $a eq $b;
4788 my $a1 = substr ($a, 0, 1);
4789 my $b1 = substr ($b, 0, 1);
4790 if ($a1 ne $b1)
4791 {
4792 return -1 if $b1 eq '.';
4793 return 1 if $a1 eq '.';
4794 }
4795 return $a cmp $b;
4796 }
4799 # &handle_factored_dependencies ()
4800 # --------------------------------
4801 # Handle everything related to gathered targets.
4802 sub handle_factored_dependencies
4803 {
4804 # Reject bad hooks.
4805 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4806 'uninstall-exec-local', 'uninstall-exec-hook',
4807 'uninstall-dvi-local',
4808 'uninstall-html-local',
4809 'uninstall-info-local',
4810 'uninstall-pdf-local',
4811 'uninstall-ps-local')
4812 {
4813 my $x = $utarg;
4814 $x =~ s/-.*-/-/;
4815 reject_rule ($utarg, "use `$x', not `$utarg'");
4816 }
4818 reject_rule ('install-local',
4819 "use `install-data-local' or `install-exec-local', "
4820 . "not `install-local'");
4822 reject_rule ('install-hook',
4823 "use `install-data-hook' or `install-exec-hook', "
4824 . "not `install-hook'");
4826 # Install the -local hooks.
4827 foreach (keys %dependencies)
4828 {
4829 # Hooks are installed on the -am targets.
4830 s/-am$// or next;
4831 depend ("$_-am", "$_-local")
4832 if user_phony_rule "$_-local";
4833 }
4835 # Install the -hook hooks.
4836 # FIXME: Why not be as liberal as we are with -local hooks?
4837 foreach ('install-exec', 'install-data', 'uninstall')
4838 {
4839 if (user_phony_rule "$_-hook")
4840 {
4841 depend ('.MAKE', "$_-am");
4842 register_action("$_-am",
4843 ("\t\@\$(NORMAL_INSTALL)\n"
4844 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4845 }
4846 }
4848 # All the required targets are phony.
4849 depend ('.PHONY', keys %required_targets);
4851 # Actually output gathered targets.
4852 foreach (sort target_cmp keys %dependencies)
4853 {
4854 # If there is nothing about this guy, skip it.
4855 next
4856 unless (@{$dependencies{$_}}
4857 || $actions{$_}
4858 || $required_targets{$_});
4860 # Define gathered targets in undefined conditions.
4861 # FIXME: Right now we must handle .PHONY as an exception,
4862 # because people write things like
4863 # .PHONY: myphonytarget
4864 # to append dependencies. This would not work if Automake
4865 # refrained from defining its own .PHONY target as it does
4866 # with other overridden targets.
4867 # Likewise for `.MAKE'.
4868 my @undefined_conds = (TRUE,);
4869 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4870 {
4871 @undefined_conds =
4872 Automake::Rule::define ($_, 'internal',
4873 RULE_AUTOMAKE, TRUE, INTERNAL);
4874 }
4875 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4876 foreach my $cond (@undefined_conds)
4877 {
4878 my $condstr = $cond->subst_string;
4879 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4880 $output_rules .= $actions{$_} if defined $actions{$_};
4881 $output_rules .= "\n";
4882 }
4883 }
4884 }
4887 # &handle_tests_dejagnu ()
4888 # ------------------------
4889 sub handle_tests_dejagnu
4890 {
4891 push (@check_tests, 'check-DEJAGNU');
4892 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4893 }
4896 # Handle TESTS variable and other checks.
4897 sub handle_tests
4898 {
4899 if (option 'dejagnu')
4900 {
4901 &handle_tests_dejagnu;
4902 }
4903 else
4904 {
4905 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4906 {
4907 reject_var ($c, "`$c' defined but `dejagnu' not in "
4908 . "`AUTOMAKE_OPTIONS'");
4909 }
4910 }
4912 if (var ('TESTS'))
4913 {
4914 push (@check_tests, 'check-TESTS');
4915 $output_rules .= &file_contents ('check', new Automake::Location,
4916 COLOR => !! option 'color-tests',
4917 PARALLEL_TESTS => !! option 'parallel-tests');
4919 # Tests that are known programs should have $(EXEEXT) appended.
4920 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4921 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4922 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4923 if (var ('XFAIL_TESTS'));
4925 if (option 'parallel-tests')
4926 {
4927 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4928 define_variable ('TEST_SUITE_HTML', '$(TEST_SUITE_LOG:.log=.html)', INTERNAL);
4929 my $suff = '.test';
4930 my $at_exeext = '';
4931 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4932 if ($handle_exeext)
4933 {
4934 $at_exeext = subst ('EXEEXT');
4935 $suff = $at_exeext . ' ' . $suff;
4936 }
4937 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4938 # FIXME: this mishandles conditions.
4939 my @test_suffixes = (var 'TEST_EXTENSIONS')->value_as_list_recursive;
4940 if ($handle_exeext)
4941 {
4942 unshift (@test_suffixes, $at_exeext)
4943 unless $test_suffixes[0] eq $at_exeext;
4944 }
4945 unshift (@test_suffixes, '');
4947 transform_variable_recursively
4948 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
4949 sub {
4950 my ($subvar, $val, $cond, $full_cond) = @_;
4951 my $obj = $val;
4952 return $obj
4953 if $val =~ /^\@.*\@$/;
4954 $obj =~ s/\$\(EXEEXT\)$//o;
4956 if ($val =~ /(\$\((top_)?srcdir\))\//o)
4957 {
4958 msg ('error', $subvar->rdef ($cond)->location,
4959 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
4960 }
4962 foreach my $test_suffix (@test_suffixes)
4963 {
4964 next
4965 if $test_suffix eq $at_exeext || $test_suffix eq '';
4966 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
4967 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
4968 }
4969 $obj .= '.log';
4970 my $compile = 'LOG_COMPILE';
4971 define_variable ($compile,
4972 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
4973 $output_rules .= file_contents ('check2', new Automake::Location,
4974 GENERIC => 0,
4975 OBJ => $obj,
4976 SOURCE => $val,
4977 COMPILE =>'$(' . $compile . ')',
4978 EXT => '',
4979 am__EXEEXT => 'FALSE');
4980 return $obj;
4981 });
4983 my $nhelper=1;
4984 my $prev = 'TESTS';
4985 my $post = '';
4986 my $last_suffix = $test_suffixes[$#test_suffixes];
4987 my $cur = '';
4988 foreach my $test_suffix (@test_suffixes)
4989 {
4990 if ($test_suffix eq $last_suffix)
4991 {
4992 $cur = 'TEST_LOGS';
4993 }
4994 else
4995 {
4996 $cur = 'am__test_logs' . $nhelper;
4997 }
4998 define_variable ($cur,
4999 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5000 $post = '.log';
5001 $prev = $cur;
5002 $nhelper++;
5003 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5004 {
5005 (my $ext = $test_suffix) =~ s/^\.//;
5006 $ext = uc $ext;
5007 my $compile = $ext . '_LOG_COMPILE';
5008 define_variable ($compile,
5009 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5010 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5011 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5012 $output_rules .= file_contents ('check2', new Automake::Location,
5013 GENERIC => 1,
5014 OBJ => '',
5015 SOURCE => '$<',
5016 COMPILE => '$(' . $compile . ')',
5017 EXT => $test_suffix,
5018 am__EXEEXT => $am_exeext);
5019 }
5020 }
5022 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5024 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5025 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5026 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5027 $clean_files{'$(TEST_SUITE_HTML)'} = MOSTLY_CLEAN;
5028 }
5029 }
5030 }
5032 # Handle Emacs Lisp.
5033 sub handle_emacs_lisp
5034 {
5035 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5036 'lisp', 'noinst');
5038 return if ! @elfiles;
5040 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5041 map { $_->[1] } @elfiles);
5042 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5043 '$(am__ELFILES:.el=.elc)');
5044 # This one can be overridden by users.
5045 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5047 push @all, '$(ELCFILES)';
5049 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5050 'EMACS', 'lispdir');
5051 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5052 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5053 }
5055 # Handle Python
5056 sub handle_python
5057 {
5058 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5059 'noinst');
5060 return if ! @pyfiles;
5062 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5063 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5064 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5065 }
5067 # Handle Java.
5068 sub handle_java
5069 {
5070 my @sourcelist = &am_install_var ('-candist',
5071 'java', 'JAVA',
5072 'java', 'noinst', 'check');
5073 return if ! @sourcelist;
5075 my @prefix = am_primary_prefixes ('JAVA', 1,
5076 'java', 'noinst', 'check');
5078 my $dir;
5079 foreach my $curs (@prefix)
5080 {
5081 next
5082 if $curs eq 'EXTRA';
5084 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5085 if defined $dir;
5086 $dir = $curs;
5087 }
5090 push (@all, 'class' . $dir . '.stamp');
5091 }
5094 # Handle some of the minor options.
5095 sub handle_minor_options
5096 {
5097 if (option 'readme-alpha')
5098 {
5099 if ($relative_dir eq '.')
5100 {
5101 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5102 {
5103 msg ('error-gnits', $package_version_location,
5104 "version `$package_version' doesn't follow " .
5105 "Gnits standards");
5106 }
5107 if (defined $1 && -f 'README-alpha')
5108 {
5109 # This means we have an alpha release. See
5110 # GNITS_VERSION_PATTERN for details.
5111 push_dist_common ('README-alpha');
5112 }
5113 }
5114 }
5115 }
5117 ################################################################
5119 # ($OUTPUT, @INPUTS)
5120 # &split_config_file_spec ($SPEC)
5121 # -------------------------------
5122 # Decode the Autoconf syntax for config files (files, headers, links
5123 # etc.).
5124 sub split_config_file_spec ($)
5125 {
5126 my ($spec) = @_;
5127 my ($output, @inputs) = split (/:/, $spec);
5129 push @inputs, "$output.in"
5130 unless @inputs;
5132 return ($output, @inputs);
5133 }
5135 # $input
5136 # locate_am (@POSSIBLE_SOURCES)
5137 # -----------------------------
5138 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5139 # This functions returns the first *.in file for which a *.am exists.
5140 # It returns undef otherwise.
5141 sub locate_am (@)
5142 {
5143 my (@rest) = @_;
5144 my $input;
5145 foreach my $file (@rest)
5146 {
5147 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5148 {
5149 $input = $file;
5150 last;
5151 }
5152 }
5153 return $input;
5154 }
5156 my %make_list;
5158 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5159 # ---------------------------------------------------
5160 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5161 # (or AC_OUTPUT).
5162 sub scan_autoconf_config_files ($$)
5163 {
5164 my ($where, $config_files) = @_;
5166 # Look at potential Makefile.am's.
5167 foreach (split ' ', $config_files)
5168 {
5169 # Must skip empty string for Perl 4.
5170 next if $_ eq "\\" || $_ eq '';
5172 # Handle $local:$input syntax.
5173 my ($local, @rest) = split (/:/);
5174 @rest = ("$local.in",) unless @rest;
5175 msg ('portability', $where,
5176 "Omit leading `./' from config file names such as `$local',"
5177 . "\nas not all make implementations treat `file' and `./file' equally.")
5178 if ($local =~ /^\.\//);
5179 my $input = locate_am @rest;
5180 if ($input)
5181 {
5182 # We have a file that automake should generate.
5183 $make_list{$input} = join (':', ($local, @rest));
5184 }
5185 else
5186 {
5187 # We have a file that automake should cause to be
5188 # rebuilt, but shouldn't generate itself.
5189 push (@other_input_files, $_);
5190 }
5191 $ac_config_files_location{$local} = $where;
5192 $ac_config_files_condition{$local} =
5193 new Automake::Condition (@cond_stack)
5194 if (@cond_stack);
5195 }
5196 }
5199 # &scan_autoconf_traces ($FILENAME)
5200 # ---------------------------------
5201 sub scan_autoconf_traces ($)
5202 {
5203 my ($filename) = @_;
5205 # Macros to trace, with their minimal number of arguments.
5206 #
5207 # IMPORTANT: If you add a macro here, you should also add this macro
5208 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5209 my %traced = (
5210 AC_CANONICAL_BUILD => 0,
5211 AC_CANONICAL_HOST => 0,
5212 AC_CANONICAL_TARGET => 0,
5213 AC_CONFIG_AUX_DIR => 1,
5214 AC_CONFIG_FILES => 1,
5215 AC_CONFIG_HEADERS => 1,
5216 AC_CONFIG_LIBOBJ_DIR => 1,
5217 AC_CONFIG_LINKS => 1,
5218 AC_FC_SRCEXT => 1,
5219 AC_INIT => 0,
5220 AC_LIBSOURCE => 1,
5221 AC_REQUIRE_AUX_FILE => 1,
5222 AC_SUBST_TRACE => 1,
5223 AM_AUTOMAKE_VERSION => 1,
5224 AM_CONDITIONAL => 2,
5225 AM_ENABLE_MULTILIB => 0,
5226 AM_GNU_GETTEXT => 0,
5227 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5228 AM_INIT_AUTOMAKE => 0,
5229 AM_MAINTAINER_MODE => 0,
5230 AM_PROG_CC_C_O => 0,
5231 AM_SILENT_RULES => 0,
5232 _AM_SUBST_NOTMAKE => 1,
5233 _AM_COND_IF => 1,
5234 _AM_COND_ELSE => 1,
5235 _AM_COND_ENDIF => 1,
5236 LT_SUPPORTED_TAG => 1,
5237 _LT_AC_TAGCONFIG => 0,
5238 m4_include => 1,
5239 m4_sinclude => 1,
5240 sinclude => 1,
5241 );
5243 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
5245 # Use a separator unlikely to be used, not `:', the default, which
5246 # has a precise meaning for AC_CONFIG_FILES and so on.
5247 $traces .= join (' ',
5248 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5249 (keys %traced));
5251 my $tracefh = new Automake::XFile ("$traces $filename |");
5252 verb "reading $traces";
5254 @cond_stack = ();
5255 my $where;
5257 while ($_ = $tracefh->getline)
5258 {
5259 chomp;
5260 my ($here, $depth, @args) = split (/::/);
5261 $where = new Automake::Location $here;
5262 my $macro = $args[0];
5264 prog_error ("unrequested trace `$macro'")
5265 unless exists $traced{$macro};
5267 # Skip and diagnose malformed calls.
5268 if ($#args < $traced{$macro})
5269 {
5270 msg ('syntax', $where, "not enough arguments for $macro");
5271 next;
5272 }
5274 # Alphabetical ordering please.
5275 if ($macro eq 'AC_CANONICAL_BUILD')
5276 {
5277 if ($seen_canonical <= AC_CANONICAL_BUILD)
5278 {
5279 $seen_canonical = AC_CANONICAL_BUILD;
5280 $canonical_location = $where;
5281 }
5282 }
5283 elsif ($macro eq 'AC_CANONICAL_HOST')
5284 {
5285 if ($seen_canonical <= AC_CANONICAL_HOST)
5286 {
5287 $seen_canonical = AC_CANONICAL_HOST;
5288 $canonical_location = $where;
5289 }
5290 }
5291 elsif ($macro eq 'AC_CANONICAL_TARGET')
5292 {
5293 $seen_canonical = AC_CANONICAL_TARGET;
5294 $canonical_location = $where;
5295 }
5296 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5297 {
5298 if ($seen_init_automake)
5299 {
5300 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5301 . "AM_INIT_AUTOMAKE...", partial => 1);
5302 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5303 }
5304 $config_aux_dir = $args[1];
5305 $config_aux_dir_set_in_configure_ac = 1;
5306 $relative_dir = '.';
5307 check_directory ($config_aux_dir, $where);
5308 }
5309 elsif ($macro eq 'AC_CONFIG_FILES')
5310 {
5311 # Look at potential Makefile.am's.
5312 scan_autoconf_config_files ($where, $args[1]);
5313 }
5314 elsif ($macro eq 'AC_CONFIG_HEADERS')
5315 {
5316 foreach my $spec (split (' ', $args[1]))
5317 {
5318 my ($dest, @src) = split (':', $spec);
5319 $ac_config_files_location{$dest} = $where;
5320 push @config_headers, $spec;
5321 }
5322 }
5323 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5324 {
5325 $config_libobj_dir = $args[1];
5326 $relative_dir = '.';
5327 check_directory ($config_libobj_dir, $where);
5328 }
5329 elsif ($macro eq 'AC_CONFIG_LINKS')
5330 {
5331 foreach my $spec (split (' ', $args[1]))
5332 {
5333 my ($dest, $src) = split (':', $spec);
5334 $ac_config_files_location{$dest} = $where;
5335 push @config_links, $spec;
5336 }
5337 }
5338 elsif ($macro eq 'AC_FC_SRCEXT')
5339 {
5340 my $suffix = $args[1];
5341 # These flags are used as %SOURCEFLAG% in depend2.am,
5342 # where the trailing space is important.
5343 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5344 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5345 }
5346 elsif ($macro eq 'AC_INIT')
5347 {
5348 if (defined $args[2])
5349 {
5350 $package_version = $args[2];
5351 $package_version_location = $where;
5352 }
5353 }
5354 elsif ($macro eq 'AC_LIBSOURCE')
5355 {
5356 $libsources{$args[1]} = $here;
5357 }
5358 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5359 {
5360 # Only remember the first time a file is required.
5361 $required_aux_file{$args[1]} = $where
5362 unless exists $required_aux_file{$args[1]};
5363 }
5364 elsif ($macro eq 'AC_SUBST_TRACE')
5365 {
5366 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5367 # AC_SUBST(5), then too bad.
5368 $configure_vars{$args[1]} = $where
5369 if $args[1] =~ /^\w+$/;
5370 }
5371 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5372 {
5373 error ($where,
5374 "version mismatch. This is Automake $VERSION,\n" .
5375 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5376 "comes from Automake $args[1]. You should recreate\n" .
5377 "aclocal.m4 with aclocal and run automake again.\n",
5378 # $? = 63 is used to indicate version mismatch to missing.
5379 exit_code => 63)
5380 if $VERSION ne $args[1];
5382 $seen_automake_version = 1;
5383 }
5384 elsif ($macro eq 'AM_CONDITIONAL')
5385 {
5386 $configure_cond{$args[1]} = $where;
5387 }
5388 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5389 {
5390 $seen_multilib = $where;
5391 }
5392 elsif ($macro eq 'AM_GNU_GETTEXT')
5393 {
5394 $seen_gettext = $where;
5395 $ac_gettext_location = $where;
5396 $seen_gettext_external = grep ($_ eq 'external', @args);
5397 }
5398 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5399 {
5400 $seen_gettext_intl = $where;
5401 }
5402 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5403 {
5404 $seen_init_automake = $where;
5405 if (defined $args[2])
5406 {
5407 $package_version = $args[2];
5408 $package_version_location = $where;
5409 }
5410 elsif (defined $args[1])
5411 {
5412 exit $exit_code
5413 if (process_global_option_list ($where,
5414 split (' ', $args[1])));
5415 }
5416 }
5417 elsif ($macro eq 'AM_MAINTAINER_MODE')
5418 {
5419 $seen_maint_mode = $where;
5420 }
5421 elsif ($macro eq 'AM_PROG_CC_C_O')
5422 {
5423 $seen_cc_c_o = $where;
5424 }
5425 elsif ($macro eq 'AM_SILENT_RULES')
5426 {
5427 set_global_option ('silent-rules', $where);
5428 }
5429 elsif ($macro eq '_AM_COND_IF')
5430 {
5431 cond_stack_if ('', $args[1], $where);
5432 error ($where, "missing m4 quoting, macro depth $depth")
5433 if ($depth != 1);
5434 }
5435 elsif ($macro eq '_AM_COND_ELSE')
5436 {
5437 cond_stack_else ('!', $args[1], $where);
5438 error ($where, "missing m4 quoting, macro depth $depth")
5439 if ($depth != 1);
5440 }
5441 elsif ($macro eq '_AM_COND_ENDIF')
5442 {
5443 cond_stack_endif (undef, undef, $where);
5444 error ($where, "missing m4 quoting, macro depth $depth")
5445 if ($depth != 1);
5446 }
5447 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5448 {
5449 $ignored_configure_vars{$args[1]} = $where;
5450 }
5451 elsif ($macro eq 'm4_include'
5452 || $macro eq 'm4_sinclude'
5453 || $macro eq 'sinclude')
5454 {
5455 # Skip missing `sinclude'd files.
5456 next if $macro ne 'm4_include' && ! -f $args[1];
5458 # Some modified versions of Autoconf don't use
5459 # frozen files. Consequently it's possible that we see all
5460 # m4_include's performed during Autoconf's startup.
5461 # Obviously we don't want to distribute Autoconf's files
5462 # so we skip absolute filenames here.
5463 push @configure_deps, '$(top_srcdir)/' . $args[1]
5464 unless $here =~ m,^(?:\w:)?[\\/],;
5465 # Keep track of the greatest timestamp.
5466 if (-e $args[1])
5467 {
5468 my $mtime = mtime $args[1];
5469 $configure_deps_greatest_timestamp = $mtime
5470 if $mtime > $configure_deps_greatest_timestamp;
5471 }
5472 }
5473 elsif ($macro eq 'LT_SUPPORTED_TAG')
5474 {
5475 $libtool_tags{$args[1]} = 1;
5476 $libtool_new_api = 1;
5477 }
5478 elsif ($macro eq '_LT_AC_TAGCONFIG')
5479 {
5480 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5481 # We use it to detect whether tags are supported. Our
5482 # preferred interface is LT_SUPPORTED_TAG, but it was
5483 # introduced in Libtool 1.6.
5484 if (0 == keys %libtool_tags)
5485 {
5486 # Hardcode the tags supported by Libtool 1.5.
5487 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5488 }
5489 }
5490 }
5492 error ($where, "condition stack not properly closed")
5493 if (@cond_stack);
5495 $tracefh->close;
5496 }
5499 # &scan_autoconf_files ()
5500 # -----------------------
5501 # Check whether we use `configure.ac' or `configure.in'.
5502 # Scan it (and possibly `aclocal.m4') for interesting things.
5503 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5504 sub scan_autoconf_files ()
5505 {
5506 # Reinitialize libsources here. This isn't really necessary,
5507 # since we currently assume there is only one configure.ac. But
5508 # that won't always be the case.
5509 %libsources = ();
5511 # Keep track of the youngest configure dependency.
5512 $configure_deps_greatest_timestamp = mtime $configure_ac;
5513 if (-e 'aclocal.m4')
5514 {
5515 my $mtime = mtime 'aclocal.m4';
5516 $configure_deps_greatest_timestamp = $mtime
5517 if $mtime > $configure_deps_greatest_timestamp;
5518 }
5520 scan_autoconf_traces ($configure_ac);
5522 @configure_input_files = sort keys %make_list;
5523 # Set input and output files if not specified by user.
5524 if (! @input_files)
5525 {
5526 @input_files = @configure_input_files;
5527 %output_files = %make_list;
5528 }
5531 if (! $seen_init_automake)
5532 {
5533 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5534 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5535 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5536 . "and that aclocal.m4 was recently regenerated "
5537 . "(using aclocal).");
5538 }
5539 else
5540 {
5541 if (! $seen_automake_version)
5542 {
5543 if (-f 'aclocal.m4')
5544 {
5545 error ($seen_init_automake,
5546 "your implementation of AM_INIT_AUTOMAKE comes from " .
5547 "an\nold Automake version. You should recreate " .
5548 "aclocal.m4\nwith aclocal and run automake again.\n",
5549 # $? = 63 is used to indicate version mismatch to missing.
5550 exit_code => 63);
5551 }
5552 else
5553 {
5554 error ($seen_init_automake,
5555 "no proper implementation of AM_INIT_AUTOMAKE was " .
5556 "found,\nprobably because aclocal.m4 is missing...\n" .
5557 "You should run aclocal to create this file, then\n" .
5558 "run automake again.\n");
5559 }
5560 }
5561 }
5563 locate_aux_dir ();
5565 # Reorder @input_files so that the Makefile that distributes aux
5566 # files is processed last. This is important because each directory
5567 # can require auxiliary scripts and we should wait until they have
5568 # been installed before distributing them.
5570 # The Makefile.in that distribute the aux files is the one in
5571 # $config_aux_dir or the top-level Makefile.
5572 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5573 my @new_input_files = ();
5574 while (@input_files)
5575 {
5576 my $in = pop @input_files;
5577 my @ins = split (/:/, $output_files{$in});
5578 if (dirname ($ins[0]) eq $auxdirdist)
5579 {
5580 push @new_input_files, $in;
5581 $automake_will_process_aux_dir = 1;
5582 }
5583 else
5584 {
5585 unshift @new_input_files, $in;
5586 }
5587 }
5588 @input_files = @new_input_files;
5590 # If neither the auxdir/Makefile nor the ./Makefile are generated
5591 # by Automake, we won't distribute the aux files anyway. Assume
5592 # the user know what (s)he does, and pretend we will distribute
5593 # them to disable the error in require_file_internal.
5594 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5596 # Look for some files we need. Always check for these. This
5597 # check must be done for every run, even those where we are only
5598 # looking at a subdir Makefile. We must set relative_dir for
5599 # maybe_push_required_file to work.
5600 # Sort the files for stable verbose output.
5601 $relative_dir = '.';
5602 foreach my $file (sort keys %required_aux_file)
5603 {
5604 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5605 }
5606 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5607 if -f $config_aux_dir . '/install.sh';
5609 # Preserve dist_common for later.
5610 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5612 }
5614 ################################################################
5616 # Set up for Cygnus mode.
5617 sub check_cygnus
5618 {
5619 my $cygnus = option 'cygnus';
5620 return unless $cygnus;
5622 set_strictness ('foreign');
5623 set_option ('no-installinfo', $cygnus);
5624 set_option ('no-dependencies', $cygnus);
5625 set_option ('no-dist', $cygnus);
5627 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5628 if !$seen_maint_mode;
5629 }
5631 # Do any extra checking for GNU standards.
5632 sub check_gnu_standards
5633 {
5634 if ($relative_dir eq '.')
5635 {
5636 # In top level (or only) directory.
5637 require_file ("$am_file.am", GNU,
5638 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5640 # Accept one of these three licenses; default to COPYING.
5641 # Make sure we do not overwrite an existing license.
5642 my $license;
5643 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5644 {
5645 if (-f $_)
5646 {
5647 $license = $_;
5648 last;
5649 }
5650 }
5651 require_file ("$am_file.am", GNU, 'COPYING')
5652 unless $license;
5653 }
5655 for my $opt ('no-installman', 'no-installinfo')
5656 {
5657 msg ('error-gnu', option $opt,
5658 "option `$opt' disallowed by GNU standards")
5659 if option $opt;
5660 }
5661 }
5663 # Do any extra checking for GNITS standards.
5664 sub check_gnits_standards
5665 {
5666 if ($relative_dir eq '.')
5667 {
5668 # In top level (or only) directory.
5669 require_file ("$am_file.am", GNITS, 'THANKS');
5670 }
5671 }
5673 ################################################################
5674 #
5675 # Functions to handle files of each language.
5677 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5678 # simple formula: Return value is LANG_SUBDIR if the resulting object
5679 # file should be in a subdir if the source file is, LANG_PROCESS if
5680 # file is to be dealt with, LANG_IGNORE otherwise.
5682 # Much of the actual processing is handled in
5683 # handle_single_transform. These functions exist so that
5684 # auxiliary information can be recorded for a later cleanup pass.
5685 # Note that the calls to these functions are computed, so don't bother
5686 # searching for their precise names in the source.
5688 # This is just a convenience function that can be used to determine
5689 # when a subdir object should be used.
5690 sub lang_sub_obj
5691 {
5692 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5693 }
5695 # Rewrite a single C source file.
5696 sub lang_c_rewrite
5697 {
5698 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5700 if (option 'ansi2knr' && $base =~ /_$/)
5701 {
5702 # FIXME: include line number in error.
5703 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5704 }
5706 my $r = LANG_PROCESS;
5707 if (option 'subdir-objects')
5708 {
5709 $r = LANG_SUBDIR;
5710 if ($directory && $directory ne '.')
5711 {
5712 $base = $directory . '/' . $base;
5714 # libtool is always able to put the object at the proper place,
5715 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5716 msg_var ('portability', $var,
5717 "compiling `$base.c' in subdir requires "
5718 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5719 uniq_scope => US_GLOBAL,
5720 uniq_part => 'AM_PROG_CC_C_O subdir')
5721 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5722 }
5724 # In this case we already have the directory information, so
5725 # don't add it again.
5726 $de_ansi_files{$base} = '';
5727 }
5728 else
5729 {
5730 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5731 ? ''
5732 : "$directory/");
5733 }
5735 if (! $seen_cc_c_o
5736 && $have_per_exec_flags
5737 && ! option 'subdir-objects'
5738 && $nonansi_obj ne '.lo')
5739 {
5740 msg_var ('portability',
5741 $var, "compiling `$base.c' with per-target flags requires "
5742 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5743 uniq_scope => US_GLOBAL,
5744 uniq_part => 'AM_PROG_CC_C_O per-target')
5745 }
5747 return $r;
5748 }
5750 # Rewrite a single C++ source file.
5751 sub lang_cxx_rewrite
5752 {
5753 return &lang_sub_obj;
5754 }
5756 # Rewrite a single header file.
5757 sub lang_header_rewrite
5758 {
5759 # Header files are simply ignored.
5760 return LANG_IGNORE;
5761 }
5763 # Rewrite a single Vala source file.
5764 sub lang_vala_rewrite
5765 {
5766 my ($directory, $base, $ext) = @_;
5768 (my $newext = $ext) =~ s/vala$/c/;
5769 return (LANG_SUBDIR, $newext);
5770 }
5772 # Rewrite a single yacc file.
5773 sub lang_yacc_rewrite
5774 {
5775 my ($directory, $base, $ext) = @_;
5777 my $r = &lang_sub_obj;
5778 (my $newext = $ext) =~ tr/y/c/;
5779 return ($r, $newext);
5780 }
5782 # Rewrite a single yacc++ file.
5783 sub lang_yaccxx_rewrite
5784 {
5785 my ($directory, $base, $ext) = @_;
5787 my $r = &lang_sub_obj;
5788 (my $newext = $ext) =~ tr/y/c/;
5789 return ($r, $newext);
5790 }
5792 # Rewrite a single lex file.
5793 sub lang_lex_rewrite
5794 {
5795 my ($directory, $base, $ext) = @_;
5797 my $r = &lang_sub_obj;
5798 (my $newext = $ext) =~ tr/l/c/;
5799 return ($r, $newext);
5800 }
5802 # Rewrite a single lex++ file.
5803 sub lang_lexxx_rewrite
5804 {
5805 my ($directory, $base, $ext) = @_;
5807 my $r = &lang_sub_obj;
5808 (my $newext = $ext) =~ tr/l/c/;
5809 return ($r, $newext);
5810 }
5812 # Rewrite a single assembly file.
5813 sub lang_asm_rewrite
5814 {
5815 return &lang_sub_obj;
5816 }
5818 # Rewrite a single preprocessed assembly file.
5819 sub lang_cppasm_rewrite
5820 {
5821 return &lang_sub_obj;
5822 }
5824 # Rewrite a single Fortran 77 file.
5825 sub lang_f77_rewrite
5826 {
5827 return &lang_sub_obj;
5828 }
5830 # Rewrite a single Fortran file.
5831 sub lang_fc_rewrite
5832 {
5833 return &lang_sub_obj;
5834 }
5836 # Rewrite a single preprocessed Fortran file.
5837 sub lang_ppfc_rewrite
5838 {
5839 return &lang_sub_obj;
5840 }
5842 # Rewrite a single preprocessed Fortran 77 file.
5843 sub lang_ppf77_rewrite
5844 {
5845 return &lang_sub_obj;
5846 }
5848 # Rewrite a single ratfor file.
5849 sub lang_ratfor_rewrite
5850 {
5851 return &lang_sub_obj;
5852 }
5854 # Rewrite a single Objective C file.
5855 sub lang_objc_rewrite
5856 {
5857 return &lang_sub_obj;
5858 }
5860 # Rewrite a single Unified Parallel C file.
5861 sub lang_upc_rewrite
5862 {
5863 return &lang_sub_obj;
5864 }
5866 # Rewrite a single Java file.
5867 sub lang_java_rewrite
5868 {
5869 return LANG_SUBDIR;
5870 }
5872 # The lang_X_finish functions are called after all source file
5873 # processing is done. Each should handle defining rules for the
5874 # language, etc. A finish function is only called if a source file of
5875 # the appropriate type has been seen.
5877 sub lang_c_finish
5878 {
5879 # Push all libobjs files onto de_ansi_files. We actually only
5880 # push files which exist in the current directory, and which are
5881 # genuine source files.
5882 foreach my $file (keys %libsources)
5883 {
5884 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5885 {
5886 $de_ansi_files{$1} = ''
5887 }
5888 }
5890 if (option 'ansi2knr' && keys %de_ansi_files)
5891 {
5892 # Make all _.c files depend on their corresponding .c files.
5893 my @objects;
5894 foreach my $base (sort keys %de_ansi_files)
5895 {
5896 # Each _.c file must depend on ansi2knr; otherwise it
5897 # might be used in a parallel build before it is built.
5898 # We need to support files in the srcdir and in the build
5899 # dir (because these files might be auto-generated. But
5900 # we can't use $< -- some makes only define $< during a
5901 # suffix rule.
5902 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5903 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5904 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5905 . '`if test -f $(srcdir)/' . $ansfile
5906 . '; then echo $(srcdir)/' . $ansfile
5907 . '; else echo ' . $ansfile . '; fi` '
5908 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5909 . '| $(ANSI2KNR) > $@'
5910 # If ansi2knr fails then we shouldn't
5911 # create the _.c file
5912 . " || rm -f \$\@\n");
5913 push (@objects, $base . '_.$(OBJEXT)');
5914 push (@objects, $base . '_.lo')
5915 if var ('LIBTOOL');
5917 # Explicitly clean the _.c files if they are in a
5918 # subdirectory. (In the current directory they get erased
5919 # by a `rm -f *_.c' rule.)
5920 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5921 if dirname ($base) ne '.';
5922 }
5924 # Make all _.o (and _.lo) files depend on ansi2knr.
5925 # Use a sneaky little hack to make it print nicely.
5926 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5927 }
5928 }
5930 sub lang_vala_finish_target ($$)
5931 {
5932 my ($self, $name) = @_;
5934 my $derived = canonicalize ($name);
5935 my $varname = $derived . '_SOURCES';
5936 my $var = var ($varname);
5938 if ($var)
5939 {
5940 foreach my $file ($var->value_as_list_recursive)
5941 {
5942 $output_rules .= "$file: ${derived}_vala.stamp\n".
5943 "\t\@if test -f \$@; then :; else \\\n".
5944 "\t rm -f ${derived}_vala.stamp; \\\n".
5945 "\t \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n".
5946 "\tfi\n"
5947 if $file =~ s/(.*)\.vala$/$1.c/;
5948 }
5949 }
5951 my $compile = $self->compile;
5953 # Rewrite each occurrence of `AM_$flag' in the compile
5954 # rule into `${derived}_$flag' if it exists.
5955 for my $flag (@{$self->flags})
5956 {
5957 my $val = "${derived}_$flag";
5958 $compile =~ s/\(AM_$flag\)/\($val\)/
5959 if set_seen ($val);
5960 }
5962 my $dirname = dirname ($name);
5964 # Only generate C code, do not run C compiler
5965 $compile .= " -C";
5967 my $verbose = verbose_flag ('VALAC');
5968 my $silent = silent_flag ();
5970 $output_rules .=
5971 "${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
5972 "\t${verbose}${compile} \$(${derived}_SOURCES)\n".
5973 "\t${silent}touch \$@\n";
5975 push_dist_common ("${derived}_vala.stamp");
5977 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
5978 }
5980 # Add output rules to invoke valac and create stamp file as a witness
5981 # to handle multiple outputs. This function is called after all source
5982 # file processing is done.
5983 sub lang_vala_finish
5984 {
5985 my ($self) = @_;
5987 foreach my $prog (keys %known_programs)
5988 {
5989 lang_vala_finish_target ($self, $prog);
5990 }
5992 while (my ($name) = each %known_libraries)
5993 {
5994 lang_vala_finish_target ($self, $name);
5995 }
5996 }
5998 # The built .c files should be cleaned only on maintainer-clean
5999 # as the .c files are distributed. This function is called for each
6000 # .vala source file.
6001 sub lang_vala_target_hook
6002 {
6003 my ($self, $aggregate, $output, $input, %transform) = @_;
6005 $clean_files{$output} = MAINTAINER_CLEAN;
6006 }
6008 # This is a yacc helper which is called whenever we have decided to
6009 # compile a yacc file.
6010 sub lang_yacc_target_hook
6011 {
6012 my ($self, $aggregate, $output, $input, %transform) = @_;
6014 my $flag = $aggregate . "_YFLAGS";
6015 my $flagvar = var $flag;
6016 my $YFLAGSvar = var 'YFLAGS';
6017 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6018 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6019 {
6020 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6021 my $header = $output_base . '.h';
6023 # Found a `-d' that applies to the compilation of this file.
6024 # Add a dependency for the generated header file, and arrange
6025 # for that file to be included in the distribution.
6026 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6027 RULE_AUTOMAKE, TRUE,
6028 INTERNAL))
6029 {
6030 my $condstr = $cond->subst_string;
6031 $output_rules .=
6032 "$condstr${header}: $output\n"
6033 # Recover from removal of $header
6034 . "$condstr\t\@if test ! -f \$@; then \\\n"
6035 . "$condstr\t rm -f $output; \\\n"
6036 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
6037 . "$condstr\telse :; fi\n";
6038 }
6039 # Distribute the generated file, unless its .y source was
6040 # listed in a nodist_ variable. (&handle_source_transform
6041 # will set DIST_SOURCE.)
6042 &push_dist_common ($header)
6043 if $transform{'DIST_SOURCE'};
6045 # If the files are built in the build directory, then we want
6046 # to remove them with `make clean'. If they are in srcdir
6047 # they shouldn't be touched. However, we can't determine this
6048 # statically, and the GNU rules say that yacc/lex output files
6049 # should be removed by maintainer-clean. So that's what we
6050 # do.
6051 $clean_files{$header} = MAINTAINER_CLEAN;
6052 }
6053 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6054 # See the comment above for $HEADER.
6055 $clean_files{$output} = MAINTAINER_CLEAN;
6056 }
6058 # This is a lex helper which is called whenever we have decided to
6059 # compile a lex file.
6060 sub lang_lex_target_hook
6061 {
6062 my ($self, $aggregate, $output, $input) = @_;
6063 # If the files are built in the build directory, then we want to
6064 # remove them with `make clean'. If they are in srcdir they
6065 # shouldn't be touched. However, we can't determine this
6066 # statically, and the GNU rules say that yacc/lex output files
6067 # should be removed by maintainer-clean. So that's what we do.
6068 $clean_files{$output} = MAINTAINER_CLEAN;
6069 }
6071 # This is a helper for both lex and yacc.
6072 sub yacc_lex_finish_helper
6073 {
6074 return if defined $language_scratch{'lex-yacc-done'};
6075 $language_scratch{'lex-yacc-done'} = 1;
6077 # FIXME: for now, no line number.
6078 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6079 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6080 }
6082 sub lang_yacc_finish
6083 {
6084 return if defined $language_scratch{'yacc-done'};
6085 $language_scratch{'yacc-done'} = 1;
6087 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6089 yacc_lex_finish_helper;
6090 }
6093 sub lang_lex_finish
6094 {
6095 return if defined $language_scratch{'lex-done'};
6096 $language_scratch{'lex-done'} = 1;
6098 yacc_lex_finish_helper;
6099 }
6102 # Given a hash table of linker names, pick the name that has the most
6103 # precedence. This is lame, but something has to have global
6104 # knowledge in order to eliminate the conflict. Add more linkers as
6105 # required.
6106 sub resolve_linker
6107 {
6108 my (%linkers) = @_;
6110 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6111 {
6112 return $l if defined $linkers{$l};
6113 }
6114 return 'LINK';
6115 }
6117 # Called to indicate that an extension was used.
6118 sub saw_extension
6119 {
6120 my ($ext) = @_;
6121 if (! defined $extension_seen{$ext})
6122 {
6123 $extension_seen{$ext} = 1;
6124 }
6125 else
6126 {
6127 ++$extension_seen{$ext};
6128 }
6129 }
6131 # Return the number of files seen for a given language. Knows about
6132 # special cases we care about. FIXME: this is hideous. We need
6133 # something that involves real language objects. For instance yacc
6134 # and yaccxx could both derive from a common yacc class which would
6135 # know about the strange ylwrap requirement. (Or better yet we could
6136 # just not support legacy yacc!)
6137 sub count_files_for_language
6138 {
6139 my ($name) = @_;
6141 my @names;
6142 if ($name eq 'yacc' || $name eq 'yaccxx')
6143 {
6144 @names = ('yacc', 'yaccxx');
6145 }
6146 elsif ($name eq 'lex' || $name eq 'lexxx')
6147 {
6148 @names = ('lex', 'lexxx');
6149 }
6150 else
6151 {
6152 @names = ($name);
6153 }
6155 my $r = 0;
6156 foreach $name (@names)
6157 {
6158 my $lang = $languages{$name};
6159 foreach my $ext (@{$lang->extensions})
6160 {
6161 $r += $extension_seen{$ext}
6162 if defined $extension_seen{$ext};
6163 }
6164 }
6166 return $r
6167 }
6169 # Called to ask whether source files have been seen . If HEADERS is 1,
6170 # headers can be included.
6171 sub saw_sources_p
6172 {
6173 my ($headers) = @_;
6175 # count all the sources
6176 my $count = 0;
6177 foreach my $val (values %extension_seen)
6178 {
6179 $count += $val;
6180 }
6182 if (!$headers)
6183 {
6184 $count -= count_files_for_language ('header');
6185 }
6187 return $count > 0;
6188 }
6191 # register_language (%ATTRIBUTE)
6192 # ------------------------------
6193 # Register a single language.
6194 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6195 sub register_language (%)
6196 {
6197 my (%option) = @_;
6199 # Set the defaults.
6200 $option{'ansi'} = 0
6201 unless defined $option{'ansi'};
6202 $option{'autodep'} = 'no'
6203 unless defined $option{'autodep'};
6204 $option{'linker'} = ''
6205 unless defined $option{'linker'};
6206 $option{'flags'} = []
6207 unless defined $option{'flags'};
6208 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6209 unless defined $option{'output_extensions'};
6210 $option{'nodist_specific'} = 0
6211 unless defined $option{'nodist_specific'};
6213 my $lang = new Language (%option);
6215 # Fill indexes.
6216 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6217 $languages{$lang->name} = $lang;
6218 my $link = $lang->linker;
6219 if ($link)
6220 {
6221 if (exists $link_languages{$link})
6222 {
6223 prog_error ("`$link' has different definitions in "
6224 . $lang->name . " and " . $link_languages{$link}->name)
6225 if $lang->link ne $link_languages{$link}->link;
6226 }
6227 else
6228 {
6229 $link_languages{$link} = $lang;
6230 }
6231 }
6233 # Update the pattern of known extensions.
6234 accept_extensions (@{$lang->extensions});
6236 # Upate the $suffix_rule map.
6237 foreach my $suffix (@{$lang->extensions})
6238 {
6239 foreach my $dest (&{$lang->output_extensions} ($suffix))
6240 {
6241 register_suffix_rule (INTERNAL, $suffix, $dest);
6242 }
6243 }
6244 }
6246 # derive_suffix ($EXT, $OBJ)
6247 # --------------------------
6248 # This function is used to find a path from a user-specified suffix $EXT
6249 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6250 sub derive_suffix ($$)
6251 {
6252 my ($source_ext, $obj) = @_;
6254 while (! $extension_map{$source_ext}
6255 && $source_ext ne $obj
6256 && exists $suffix_rules->{$source_ext}
6257 && exists $suffix_rules->{$source_ext}{$obj})
6258 {
6259 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6260 }
6262 return $source_ext;
6263 }
6266 ################################################################
6268 # Pretty-print something and append to output_rules.
6269 sub pretty_print_rule
6270 {
6271 $output_rules .= &makefile_wrap (@_);
6272 }
6275 ################################################################
6278 ## -------------------------------- ##
6279 ## Handling the conditional stack. ##
6280 ## -------------------------------- ##
6283 # $STRING
6284 # make_conditional_string ($NEGATE, $COND)
6285 # ----------------------------------------
6286 sub make_conditional_string ($$)
6287 {
6288 my ($negate, $cond) = @_;
6289 $cond = "${cond}_TRUE"
6290 unless $cond =~ /^TRUE|FALSE$/;
6291 $cond = Automake::Condition::conditional_negate ($cond)
6292 if $negate;
6293 return $cond;
6294 }
6297 my %_am_macro_for_cond =
6298 (
6299 AMDEP => "one of the compiler tests\n"
6300 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6301 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6302 am__fastdepCC => 'AC_PROG_CC',
6303 am__fastdepCCAS => 'AM_PROG_AS',
6304 am__fastdepCXX => 'AC_PROG_CXX',
6305 am__fastdepGCJ => 'AM_PROG_GCJ',
6306 am__fastdepOBJC => 'AC_PROG_OBJC',
6307 am__fastdepUPC => 'AM_PROG_UPC'
6308 );
6310 # $COND
6311 # cond_stack_if ($NEGATE, $COND, $WHERE)
6312 # --------------------------------------
6313 sub cond_stack_if ($$$)
6314 {
6315 my ($negate, $cond, $where) = @_;
6317 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6318 {
6319 my $text = "$cond does not appear in AM_CONDITIONAL";
6320 my $scope = US_LOCAL;
6321 if (exists $_am_macro_for_cond{$cond})
6322 {
6323 my $mac = $_am_macro_for_cond{$cond};
6324 $text .= "\n The usual way to define `$cond' is to add ";
6325 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6326 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6327 # These warnings appear in Automake files (depend2.am),
6328 # so there is no need to display them more than once:
6329 $scope = US_GLOBAL;
6330 }
6331 error $where, $text, uniq_scope => $scope;
6332 }
6334 push (@cond_stack, make_conditional_string ($negate, $cond));
6336 return new Automake::Condition (@cond_stack);
6337 }
6340 # $COND
6341 # cond_stack_else ($NEGATE, $COND, $WHERE)
6342 # ----------------------------------------
6343 sub cond_stack_else ($$$)
6344 {
6345 my ($negate, $cond, $where) = @_;
6347 if (! @cond_stack)
6348 {
6349 error $where, "else without if";
6350 return FALSE;
6351 }
6353 $cond_stack[$#cond_stack] =
6354 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6356 # If $COND is given, check against it.
6357 if (defined $cond)
6358 {
6359 $cond = make_conditional_string ($negate, $cond);
6361 error ($where, "else reminder ($negate$cond) incompatible with "
6362 . "current conditional: $cond_stack[$#cond_stack]")
6363 if $cond_stack[$#cond_stack] ne $cond;
6364 }
6366 return new Automake::Condition (@cond_stack);
6367 }
6370 # $COND
6371 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6372 # -----------------------------------------
6373 sub cond_stack_endif ($$$)
6374 {
6375 my ($negate, $cond, $where) = @_;
6376 my $old_cond;
6378 if (! @cond_stack)
6379 {
6380 error $where, "endif without if";
6381 return TRUE;
6382 }
6384 # If $COND is given, check against it.
6385 if (defined $cond)
6386 {
6387 $cond = make_conditional_string ($negate, $cond);
6389 error ($where, "endif reminder ($negate$cond) incompatible with "
6390 . "current conditional: $cond_stack[$#cond_stack]")
6391 if $cond_stack[$#cond_stack] ne $cond;
6392 }
6394 pop @cond_stack;
6396 return new Automake::Condition (@cond_stack);
6397 }
6403 ## ------------------------ ##
6404 ## Handling the variables. ##
6405 ## ------------------------ ##
6408 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6409 # -----------------------------------------------------
6410 # Like define_variable, but the value is a list, and the variable may
6411 # be defined conditionally. The second argument is the condition
6412 # under which the value should be defined; this should be the empty
6413 # string to define the variable unconditionally. The third argument
6414 # is a list holding the values to use for the variable. The value is
6415 # pretty printed in the output file.
6416 sub define_pretty_variable ($$$@)
6417 {
6418 my ($var, $cond, $where, @value) = @_;
6420 if (! vardef ($var, $cond))
6421 {
6422 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6423 '', $where, VAR_PRETTY);
6424 rvar ($var)->rdef ($cond)->set_seen;
6425 }
6426 }
6429 # define_variable ($VAR, $VALUE, $WHERE)
6430 # --------------------------------------
6431 # Define a new Automake Makefile variable VAR to VALUE, but only if
6432 # not already defined.
6433 sub define_variable ($$$)
6434 {
6435 my ($var, $value, $where) = @_;
6436 define_pretty_variable ($var, TRUE, $where, $value);
6437 }
6440 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6441 # -----------------------------------------------------------
6442 # Define the $VAR which content is the list of file names composed of
6443 # a @BASENAME and the $EXTENSION.
6444 sub define_files_variable ($\@$$)
6445 {
6446 my ($var, $basename, $extension, $where) = @_;
6447 define_variable ($var,
6448 join (' ', map { "$_.$extension" } @$basename),
6449 $where);
6450 }
6453 # Like define_variable, but define a variable to be the configure
6454 # substitution by the same name.
6455 sub define_configure_variable ($)
6456 {
6457 my ($var) = @_;
6459 my $pretty = VAR_ASIS;
6460 my $owner = VAR_CONFIGURE;
6462 # Some variables we do not want to output. For instance it
6463 # would be a bad idea to output `U = @U@` when `@U@` can be
6464 # substituted as `\`.
6465 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6467 # ANSI2KNR is a variable that Automake wants to redefine, so
6468 # it must be owned by Automake. (It is also used as a proof
6469 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6470 # omit the AC_SUBST.)
6471 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6473 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6474 '', $configure_vars{$var}, $pretty);
6475 }
6478 # define_compiler_variable ($LANG)
6479 # --------------------------------
6480 # Define a compiler variable. We also handle defining the `LT'
6481 # version of the command when using libtool.
6482 sub define_compiler_variable ($)
6483 {
6484 my ($lang) = @_;
6486 my ($var, $value) = ($lang->compiler, $lang->compile);
6487 my $libtool_tag = '';
6488 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6489 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6490 &define_variable ($var, $value, INTERNAL);
6491 if (var ('LIBTOOL'))
6492 {
6493 my $verbose = define_verbose_libtool ();
6494 &define_variable ("LT$var",
6495 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6496 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6497 INTERNAL);
6498 }
6499 define_verbose_tagvar ($lang->ccer || 'GEN');
6500 }
6503 # define_linker_variable ($LANG)
6504 # ------------------------------
6505 # Define linker variables.
6506 sub define_linker_variable ($)
6507 {
6508 my ($lang) = @_;
6510 my $libtool_tag = '';
6511 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6512 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6513 # CCLD = $(CC).
6514 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6515 # CCLINK = $(CCLD) blah blah...
6516 my $link = '';
6517 if (var ('LIBTOOL'))
6518 {
6519 my $verbose = define_verbose_libtool ();
6520 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6521 . "\$(LIBTOOLFLAGS) --mode=link ";
6522 }
6523 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6524 &define_variable ($lang->compiler, $lang);
6525 &define_verbose_tagvar ($lang->lder || 'GEN');
6526 }
6528 sub define_per_target_linker_variable ($$)
6529 {
6530 my ($linker, $target) = @_;
6532 # If the user wrote a custom link command, we don't define ours.
6533 return "${target}_LINK"
6534 if set_seen "${target}_LINK";
6536 my $xlink = $linker ? $linker : 'LINK';
6538 my $lang = $link_languages{$xlink};
6539 prog_error "Unknown language for linker variable `$xlink'"
6540 unless $lang;
6542 my $link_command = $lang->link;
6543 if (var 'LIBTOOL')
6544 {
6545 my $libtool_tag = '';
6546 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6547 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6549 my $verbose = define_verbose_libtool ();
6550 $link_command =
6551 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6552 . "--mode=link " . $link_command;
6553 }
6555 # Rewrite each occurrence of `AM_$flag' in the link
6556 # command into `${derived}_$flag' if it exists.
6557 my $orig_command = $link_command;
6558 my @flags = (@{$lang->flags}, 'LDFLAGS');
6559 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6560 for my $flag (@flags)
6561 {
6562 my $val = "${target}_$flag";
6563 $link_command =~ s/\(AM_$flag\)/\($val\)/
6564 if set_seen ($val);
6565 }
6567 # If the computed command is the same as the generic command, use
6568 # the command linker variable.
6569 return ($lang->linker, $lang->lder)
6570 if $link_command eq $orig_command;
6572 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6573 return ("${target}_LINK", $lang->lder);
6574 }
6576 ################################################################
6578 # &check_trailing_slash ($WHERE, $LINE)
6579 # --------------------------------------
6580 # Return 1 iff $LINE ends with a slash.
6581 # Might modify $LINE.
6582 sub check_trailing_slash ($\$)
6583 {
6584 my ($where, $line) = @_;
6586 # Ignore `##' lines.
6587 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6589 # Catch and fix a common error.
6590 msg "syntax", $where, "whitespace following trailing backslash"
6591 if $$line =~ s/\\\s+\n$/\\\n/;
6593 return $$line =~ /\\$/;
6594 }
6597 # &read_am_file ($AMFILE, $WHERE)
6598 # -------------------------------
6599 # Read Makefile.am and set up %contents. Simultaneously copy lines
6600 # from Makefile.am into $output_trailer, or define variables as
6601 # appropriate. NOTE we put rules in the trailer section. We want
6602 # user rules to come after our generated stuff.
6603 sub read_am_file ($$)
6604 {
6605 my ($amfile, $where) = @_;
6607 my $am_file = new Automake::XFile ("< $amfile");
6608 verb "reading $amfile";
6610 # Keep track of the youngest output dependency.
6611 my $mtime = mtime $amfile;
6612 $output_deps_greatest_timestamp = $mtime
6613 if $mtime > $output_deps_greatest_timestamp;
6615 my $spacing = '';
6616 my $comment = '';
6617 my $blank = 0;
6618 my $saw_bk = 0;
6619 my $var_look = VAR_ASIS;
6621 use constant IN_VAR_DEF => 0;
6622 use constant IN_RULE_DEF => 1;
6623 use constant IN_COMMENT => 2;
6624 my $prev_state = IN_RULE_DEF;
6626 while ($_ = $am_file->getline)
6627 {
6628 $where->set ("$amfile:$.");
6629 if (/$IGNORE_PATTERN/o)
6630 {
6631 # Merely delete comments beginning with two hashes.
6632 }
6633 elsif (/$WHITE_PATTERN/o)
6634 {
6635 error $where, "blank line following trailing backslash"
6636 if $saw_bk;
6637 # Stick a single white line before the incoming macro or rule.
6638 $spacing = "\n";
6639 $blank = 1;
6640 # Flush all comments seen so far.
6641 if ($comment ne '')
6642 {
6643 $output_vars .= $comment;
6644 $comment = '';
6645 }
6646 }
6647 elsif (/$COMMENT_PATTERN/o)
6648 {
6649 # Stick comments before the incoming macro or rule. Make
6650 # sure a blank line precedes the first block of comments.
6651 $spacing = "\n" unless $blank;
6652 $blank = 1;
6653 $comment .= $spacing . $_;
6654 $spacing = '';
6655 $prev_state = IN_COMMENT;
6656 }
6657 else
6658 {
6659 last;
6660 }
6661 $saw_bk = check_trailing_slash ($where, $_);
6662 }
6664 # We save the conditional stack on entry, and then check to make
6665 # sure it is the same on exit. This lets us conditionally include
6666 # other files.
6667 my @saved_cond_stack = @cond_stack;
6668 my $cond = new Automake::Condition (@cond_stack);
6670 my $last_var_name = '';
6671 my $last_var_type = '';
6672 my $last_var_value = '';
6673 my $last_where;
6674 # FIXME: shouldn't use $_ in this loop; it is too big.
6675 while ($_)
6676 {
6677 $where->set ("$amfile:$.");
6679 # Make sure the line is \n-terminated.
6680 chomp;
6681 $_ .= "\n";
6683 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6684 # used by users. @MAINT@ is an anachronism now.
6685 $_ =~ s/\@MAINT\@//g
6686 unless $seen_maint_mode;
6688 my $new_saw_bk = check_trailing_slash ($where, $_);
6690 if (/$IGNORE_PATTERN/o)
6691 {
6692 # Merely delete comments beginning with two hashes.
6694 # Keep any backslash from the previous line.
6695 $new_saw_bk = $saw_bk;
6696 }
6697 elsif (/$WHITE_PATTERN/o)
6698 {
6699 # Stick a single white line before the incoming macro or rule.
6700 $spacing = "\n";
6701 error $where, "blank line following trailing backslash"
6702 if $saw_bk;
6703 }
6704 elsif (/$COMMENT_PATTERN/o)
6705 {
6706 error $where, "comment following trailing backslash"
6707 if $saw_bk && $prev_state != IN_COMMENT;
6709 # Stick comments before the incoming macro or rule.
6710 $comment .= $spacing . $_;
6711 $spacing = '';
6712 $prev_state = IN_COMMENT;
6713 }
6714 elsif ($saw_bk)
6715 {
6716 if ($prev_state == IN_RULE_DEF)
6717 {
6718 my $cond = new Automake::Condition @cond_stack;
6719 $output_trailer .= $cond->subst_string;
6720 $output_trailer .= $_;
6721 }
6722 elsif ($prev_state == IN_COMMENT)
6723 {
6724 # If the line doesn't start with a `#', add it.
6725 # We do this because a continued comment like
6726 # # A = foo \
6727 # bar \
6728 # baz
6729 # is not portable. BSD make doesn't honor
6730 # escaped newlines in comments.
6731 s/^#?/#/;
6732 $comment .= $spacing . $_;
6733 }
6734 else # $prev_state == IN_VAR_DEF
6735 {
6736 $last_var_value .= ' '
6737 unless $last_var_value =~ /\s$/;
6738 $last_var_value .= $_;
6740 if (!/\\$/)
6741 {
6742 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6743 $last_var_type, $cond,
6744 $last_var_value, $comment,
6745 $last_where, VAR_ASIS)
6746 if $cond != FALSE;
6747 $comment = $spacing = '';
6748 }
6749 }
6750 }
6752 elsif (/$IF_PATTERN/o)
6753 {
6754 $cond = cond_stack_if ($1, $2, $where);
6755 }
6756 elsif (/$ELSE_PATTERN/o)
6757 {
6758 $cond = cond_stack_else ($1, $2, $where);
6759 }
6760 elsif (/$ENDIF_PATTERN/o)
6761 {
6762 $cond = cond_stack_endif ($1, $2, $where);
6763 }
6765 elsif (/$RULE_PATTERN/o)
6766 {
6767 # Found a rule.
6768 $prev_state = IN_RULE_DEF;
6770 # For now we have to output all definitions of user rules
6771 # and can't diagnose duplicates (see the comment in
6772 # Automake::Rule::define). So we go on and ignore the return value.
6773 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6775 check_variable_expansions ($_, $where);
6777 $output_trailer .= $comment . $spacing;
6778 my $cond = new Automake::Condition @cond_stack;
6779 $output_trailer .= $cond->subst_string;
6780 $output_trailer .= $_;
6781 $comment = $spacing = '';
6782 }
6783 elsif (/$ASSIGNMENT_PATTERN/o)
6784 {
6785 # Found a macro definition.
6786 $prev_state = IN_VAR_DEF;
6787 $last_var_name = $1;
6788 $last_var_type = $2;
6789 $last_var_value = $3;
6790 $last_where = $where->clone;
6791 if ($3 ne '' && substr ($3, -1) eq "\\")
6792 {
6793 # We preserve the `\' because otherwise the long lines
6794 # that are generated will be truncated by broken
6795 # `sed's.
6796 $last_var_value = $3 . "\n";
6797 }
6798 # Normally we try to output variable definitions in the
6799 # same format they were input. However, POSIX compliant
6800 # systems are not required to support lines longer than
6801 # 2048 bytes (most notably, some sed implementation are
6802 # limited to 4000 bytes, and sed is used by config.status
6803 # to rewrite Makefile.in into Makefile). Moreover nobody
6804 # would really write such long lines by hand since it is
6805 # hardly maintainable. So if a line is longer that 1000
6806 # bytes (an arbitrary limit), assume it has been
6807 # automatically generated by some tools, and flatten the
6808 # variable definition. Otherwise, keep the variable as it
6809 # as been input.
6810 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6812 if (!/\\$/)
6813 {
6814 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6815 $last_var_type, $cond,
6816 $last_var_value, $comment,
6817 $last_where, $var_look)
6818 if $cond != FALSE;
6819 $comment = $spacing = '';
6820 $var_look = VAR_ASIS;
6821 }
6822 }
6823 elsif (/$INCLUDE_PATTERN/o)
6824 {
6825 my $path = $1;
6827 if ($path =~ s/^\$\(top_srcdir\)\///)
6828 {
6829 push (@include_stack, "\$\(top_srcdir\)/$path");
6830 # Distribute any included file.
6832 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6833 # otherwise OSF make will implicitly copy the included
6834 # file in the build tree during `make distdir' to satisfy
6835 # the dependency.
6836 # (subdircond2.test and subdircond3.test will fail.)
6837 push_dist_common ("\$\(top_srcdir\)/$path");
6838 }
6839 else
6840 {
6841 $path =~ s/\$\(srcdir\)\///;
6842 push (@include_stack, "\$\(srcdir\)/$path");
6843 # Always use the $(srcdir) prefix in DIST_COMMON,
6844 # otherwise OSF make will implicitly copy the included
6845 # file in the build tree during `make distdir' to satisfy
6846 # the dependency.
6847 # (subdircond2.test and subdircond3.test will fail.)
6848 push_dist_common ("\$\(srcdir\)/$path");
6849 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6850 }
6851 $where->push_context ("`$path' included from here");
6852 &read_am_file ($path, $where);
6853 $where->pop_context;
6854 }
6855 else
6856 {
6857 # This isn't an error; it is probably a continued rule.
6858 # In fact, this is what we assume.
6859 $prev_state = IN_RULE_DEF;
6860 check_variable_expansions ($_, $where);
6861 $output_trailer .= $comment . $spacing;
6862 my $cond = new Automake::Condition @cond_stack;
6863 $output_trailer .= $cond->subst_string;
6864 $output_trailer .= $_;
6865 $comment = $spacing = '';
6866 error $where, "`#' comment at start of rule is unportable"
6867 if $_ =~ /^\t\s*\#/;
6868 }
6870 $saw_bk = $new_saw_bk;
6871 $_ = $am_file->getline;
6872 }
6874 $output_trailer .= $comment;
6876 error ($where, "trailing backslash on last line")
6877 if $saw_bk;
6879 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6880 : "too many conditionals closed in include file"))
6881 if "@saved_cond_stack" ne "@cond_stack";
6882 }
6885 # define_standard_variables ()
6886 # ----------------------------
6887 # A helper for read_main_am_file which initializes configure variables
6888 # and variables from header-vars.am.
6889 sub define_standard_variables
6890 {
6891 my $saved_output_vars = $output_vars;
6892 my ($comments, undef, $rules) =
6893 file_contents_internal (1, "$libdir/am/header-vars.am",
6894 new Automake::Location);
6896 foreach my $var (sort keys %configure_vars)
6897 {
6898 &define_configure_variable ($var);
6899 }
6901 $output_vars .= $comments . $rules;
6902 }
6904 # Read main am file.
6905 sub read_main_am_file
6906 {
6907 my ($amfile) = @_;
6909 # This supports the strange variable tricks we are about to play.
6910 prog_error (macros_dump () . "variable defined before read_main_am_file")
6911 if (scalar (variables) > 0);
6913 # Generate copyright header for generated Makefile.in.
6914 # We do discard the output of predefined variables, handled below.
6915 $output_vars = ("# $in_file_name generated by automake "
6916 . $VERSION . " from $am_file_name.\n");
6917 $output_vars .= '# ' . subst ('configure_input') . "\n";
6918 $output_vars .= $gen_copyright;
6920 # We want to predefine as many variables as possible. This lets
6921 # the user set them with `+=' in Makefile.am.
6922 &define_standard_variables;
6924 # Read user file, which might override some of our values.
6925 &read_am_file ($amfile, new Automake::Location);
6926 }
6930 ################################################################
6932 # $FLATTENED
6933 # &flatten ($STRING)
6934 # ------------------
6935 # Flatten the $STRING and return the result.
6936 sub flatten
6937 {
6938 $_ = shift;
6940 s/\\\n//somg;
6941 s/\s+/ /g;
6942 s/^ //;
6943 s/ $//;
6945 return $_;
6946 }
6949 # transform_token ($TOKEN, \%PAIRS, $KEY)
6950 # =======================================
6951 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6952 # (which should be ?KEY? or any of the special %% requests)..
6953 sub transform_token ($$$)
6954 {
6955 my ($token, $transform, $key) = @_;
6956 my $res = $transform->{$key};
6957 prog_error "Unknown key `$key' in `$token'" unless defined $res;
6958 return $res;
6959 }
6962 # transform ($TOKEN, \%PAIRS)
6963 # ===========================
6964 # If ($TOKEN, $VAL) is in %PAIRS:
6965 # - replaces %KEY% with $VAL,
6966 # - enables/disables ?KEY? and ?!KEY?,
6967 # - replaces %?KEY% with TRUE or FALSE.
6968 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6969 # IFTRUE / IFFALSE, as appropriate.
6970 sub transform ($$)
6971 {
6972 my ($token, $transform) = @_;
6974 # %KEY%.
6975 # Must be before the following pattern to exclude the case
6976 # when there is neither IFTRUE nor IFFALSE.
6977 if ($token =~ /^%([\w\-]+)%$/)
6978 {
6979 return transform_token ($token, $transform, $1);
6980 }
6981 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6982 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6983 {
6984 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6985 }
6986 # %?KEY%.
6987 elsif ($token =~ /^%\?([\w\-]+)%$/)
6988 {
6989 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6990 }
6991 # ?KEY? and ?!KEY?.
6992 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6993 {
6994 my $neg = ($1 eq '!') ? 1 : 0;
6995 my $val = transform_token ($token, $transform, $2);
6996 return (!!$val == $neg) ? '##%' : '';
6997 }
6998 else
6999 {
7000 prog_error "Unknown request format: $token";
7001 }
7002 }
7005 # @PARAGRAPHS
7006 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7007 # ------------------------------------------
7008 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7009 # paragraphs.
7010 sub make_paragraphs ($%)
7011 {
7012 my ($file, %transform) = @_;
7014 # Complete %transform with global options.
7015 # Note that %transform goes last, so it overrides global options.
7016 %transform = ('CYGNUS' => !! option 'cygnus',
7017 'MAINTAINER-MODE'
7018 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7020 'XZ' => !! option 'dist-xz',
7021 'LZMA' => !! option 'dist-lzma',
7022 'BZIP2' => !! option 'dist-bzip2',
7023 'COMPRESS' => !! option 'dist-tarZ',
7024 'GZIP' => ! option 'no-dist-gzip',
7025 'SHAR' => !! option 'dist-shar',
7026 'ZIP' => !! option 'dist-zip',
7028 'INSTALL-INFO' => ! option 'no-installinfo',
7029 'INSTALL-MAN' => ! option 'no-installman',
7030 'HAVE-MANS' => !! var ('MANS'),
7031 'CK-NEWS' => !! option 'check-news',
7033 'SUBDIRS' => !! var ('SUBDIRS'),
7034 'TOPDIR_P' => $relative_dir eq '.',
7036 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7037 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7038 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7040 'LIBTOOL' => !! var ('LIBTOOL'),
7041 'NONLIBTOOL' => 1,
7042 'FIRST' => ! $transformed_files{$file},
7043 %transform);
7045 $transformed_files{$file} = 1;
7046 $_ = $am_file_cache{$file};
7048 if (! defined $_)
7049 {
7050 verb "reading $file";
7051 # Swallow the whole file.
7052 my $fc_file = new Automake::XFile "< $file";
7053 my $saved_dollar_slash = $/;
7054 undef $/;
7055 $_ = $fc_file->getline;
7056 $/ = $saved_dollar_slash;
7057 $fc_file->close;
7059 # Remove ##-comments.
7060 # Besides we don't need more than two consecutive new-lines.
7061 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7063 $am_file_cache{$file} = $_;
7064 }
7066 # Substitute Automake template tokens.
7067 s/(?: % \?? [\w\-]+ %
7068 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7069 | \? !? [\w\-]+ \?
7070 )/transform($&, \%transform)/gex;
7071 # transform() may have added some ##%-comments to strip.
7072 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7073 # ####### and do not remove the latter.)
7074 s/^[ \t]*(?:##%)+.*\n//gm;
7076 # Split at unescaped new lines.
7077 my @lines = split (/(?<!\\)\n/, $_);
7078 my @res;
7080 while (defined ($_ = shift @lines))
7081 {
7082 my $paragraph = $_;
7083 # If we are a rule, eat as long as we start with a tab.
7084 if (/$RULE_PATTERN/smo)
7085 {
7086 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7087 {
7088 $paragraph .= "\n$_";
7089 }
7090 unshift (@lines, $_);
7091 }
7093 # If we are a comments, eat as much comments as you can.
7094 elsif (/$COMMENT_PATTERN/smo)
7095 {
7096 while (defined ($_ = shift @lines)
7097 && $_ =~ /$COMMENT_PATTERN/smo)
7098 {
7099 $paragraph .= "\n$_";
7100 }
7101 unshift (@lines, $_);
7102 }
7104 push @res, $paragraph;
7105 }
7107 return @res;
7108 }
7112 # ($COMMENT, $VARIABLES, $RULES)
7113 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7114 # -------------------------------------------------------------
7115 # Return contents of a file from $libdir/am, automatically skipping
7116 # macros or rules which are already known. $IS_AM iff the caller is
7117 # reading an Automake file (as opposed to the user's Makefile.am).
7118 sub file_contents_internal ($$$%)
7119 {
7120 my ($is_am, $file, $where, %transform) = @_;
7122 $where->set ($file);
7124 my $result_vars = '';
7125 my $result_rules = '';
7126 my $comment = '';
7127 my $spacing = '';
7129 # The following flags are used to track rules spanning across
7130 # multiple paragraphs.
7131 my $is_rule = 0; # 1 if we are processing a rule.
7132 my $discard_rule = 0; # 1 if the current rule should not be output.
7134 # We save the conditional stack on entry, and then check to make
7135 # sure it is the same on exit. This lets us conditionally include
7136 # other files.
7137 my @saved_cond_stack = @cond_stack;
7138 my $cond = new Automake::Condition (@cond_stack);
7140 foreach (make_paragraphs ($file, %transform))
7141 {
7142 # FIXME: no line number available.
7143 $where->set ($file);
7145 # Sanity checks.
7146 error $where, "blank line following trailing backslash:\n$_"
7147 if /\\$/;
7148 error $where, "comment following trailing backslash:\n$_"
7149 if /\\#/;
7151 if (/^$/)
7152 {
7153 $is_rule = 0;
7154 # Stick empty line before the incoming macro or rule.
7155 $spacing = "\n";
7156 }
7157 elsif (/$COMMENT_PATTERN/mso)
7158 {
7159 $is_rule = 0;
7160 # Stick comments before the incoming macro or rule.
7161 $comment = "$_\n";
7162 }
7164 # Handle inclusion of other files.
7165 elsif (/$INCLUDE_PATTERN/o)
7166 {
7167 if ($cond != FALSE)
7168 {
7169 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7170 $where->push_context ("`$file' included from here");
7171 # N-ary `.=' fails.
7172 my ($com, $vars, $rules)
7173 = file_contents_internal ($is_am, $file, $where, %transform);
7174 $where->pop_context;
7175 $comment .= $com;
7176 $result_vars .= $vars;
7177 $result_rules .= $rules;
7178 }
7179 }
7181 # Handling the conditionals.
7182 elsif (/$IF_PATTERN/o)
7183 {
7184 $cond = cond_stack_if ($1, $2, $file);
7185 }
7186 elsif (/$ELSE_PATTERN/o)
7187 {
7188 $cond = cond_stack_else ($1, $2, $file);
7189 }
7190 elsif (/$ENDIF_PATTERN/o)
7191 {
7192 $cond = cond_stack_endif ($1, $2, $file);
7193 }
7195 # Handling rules.
7196 elsif (/$RULE_PATTERN/mso)
7197 {
7198 $is_rule = 1;
7199 $discard_rule = 0;
7200 # Separate relationship from optional actions: the first
7201 # `new-line tab" not preceded by backslash (continuation
7202 # line).
7203 my $paragraph = $_;
7204 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7205 my ($relationship, $actions) = ($1, $2 || '');
7207 # Separate targets from dependencies: the first colon.
7208 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7209 my ($targets, $dependencies) = ($1, $2);
7210 # Remove the escaped new lines.
7211 # I don't know why, but I have to use a tmp $flat_deps.
7212 my $flat_deps = &flatten ($dependencies);
7213 my @deps = split (' ', $flat_deps);
7215 foreach (split (' ', $targets))
7216 {
7217 # FIXME: 1. We are not robust to people defining several targets
7218 # at once, only some of them being in %dependencies. The
7219 # actions from the targets in %dependencies are usually generated
7220 # from the content of %actions, but if some targets in $targets
7221 # are not in %dependencies the ELSE branch will output
7222 # a rule for all $targets (i.e. the targets which are both
7223 # in %dependencies and $targets will have two rules).
7225 # FIXME: 2. The logic here is not able to output a
7226 # multi-paragraph rule several time (e.g. for each condition
7227 # it is defined for) because it only knows the first paragraph.
7229 # FIXME: 3. We are not robust to people defining a subset
7230 # of a previously defined "multiple-target" rule. E.g.
7231 # `foo:' after `foo bar:'.
7233 # Output only if not in FALSE.
7234 if (defined $dependencies{$_} && $cond != FALSE)
7235 {
7236 &depend ($_, @deps);
7237 register_action ($_, $actions);
7238 }
7239 else
7240 {
7241 # Free-lance dependency. Output the rule for all the
7242 # targets instead of one by one.
7243 my @undefined_conds =
7244 Automake::Rule::define ($targets, $file,
7245 $is_am ? RULE_AUTOMAKE : RULE_USER,
7246 $cond, $where);
7247 for my $undefined_cond (@undefined_conds)
7248 {
7249 my $condparagraph = $paragraph;
7250 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7251 $result_rules .= "$spacing$comment$condparagraph\n";
7252 }
7253 if (scalar @undefined_conds == 0)
7254 {
7255 # Remember to discard next paragraphs
7256 # if they belong to this rule.
7257 # (but see also FIXME: #2 above.)
7258 $discard_rule = 1;
7259 }
7260 $comment = $spacing = '';
7261 last;
7262 }
7263 }
7264 }
7266 elsif (/$ASSIGNMENT_PATTERN/mso)
7267 {
7268 my ($var, $type, $val) = ($1, $2, $3);
7269 error $where, "variable `$var' with trailing backslash"
7270 if /\\$/;
7272 $is_rule = 0;
7274 Automake::Variable::define ($var,
7275 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7276 $type, $cond, $val, $comment, $where,
7277 VAR_ASIS)
7278 if $cond != FALSE;
7280 $comment = $spacing = '';
7281 }
7282 else
7283 {
7284 # This isn't an error; it is probably some tokens which
7285 # configure is supposed to replace, such as `@SET-MAKE@',
7286 # or some part of a rule cut by an if/endif.
7287 if (! $cond->false && ! ($is_rule && $discard_rule))
7288 {
7289 s/^/$cond->subst_string/gme;
7290 $result_rules .= "$spacing$comment$_\n";
7291 }
7292 $comment = $spacing = '';
7293 }
7294 }
7296 error ($where, @cond_stack ?
7297 "unterminated conditionals: @cond_stack" :
7298 "too many conditionals closed in include file")
7299 if "@saved_cond_stack" ne "@cond_stack";
7301 return ($comment, $result_vars, $result_rules);
7302 }
7305 # $CONTENTS
7306 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7307 # ------------------------------------------------
7308 # Return contents of a file from $libdir/am, automatically skipping
7309 # macros or rules which are already known.
7310 sub file_contents ($$%)
7311 {
7312 my ($basename, $where, %transform) = @_;
7313 my ($comments, $variables, $rules) =
7314 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7315 %transform);
7316 return "$comments$variables$rules";
7317 }
7320 # @PREFIX
7321 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7322 # -----------------------------------------------------
7323 # Find all variable prefixes that are used for install directories. A
7324 # prefix `zar' qualifies iff:
7325 #
7326 # * `zardir' is a variable.
7327 # * `zar_PRIMARY' is a variable.
7328 #
7329 # As a side effect, it looks for misspellings. It is an error to have
7330 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7331 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7332 # of the same name (with "dir" appended) exists. For instance, if the
7333 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7334 # This is to provide a little extra flexibility in those cases which
7335 # need it.
7336 sub am_primary_prefixes ($$@)
7337 {
7338 my ($primary, $can_dist, @prefixes) = @_;
7340 local $_;
7341 my %valid = map { $_ => 0 } @prefixes;
7342 $valid{'EXTRA'} = 0;
7343 foreach my $var (variables $primary)
7344 {
7345 # Automake is allowed to define variables that look like primaries
7346 # but which aren't. E.g. INSTALL_sh_DATA.
7347 # Autoconf can also define variables like INSTALL_DATA, so
7348 # ignore all configure variables (at least those which are not
7349 # redefined in Makefile.am).
7350 # FIXME: We should make sure that these variables are not
7351 # conditionally defined (or else adjust the condition below).
7352 my $def = $var->def (TRUE);
7353 next if $def && $def->owner != VAR_MAKEFILE;
7355 my $varname = $var->name;
7357 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7358 {
7359 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7360 if ($dist ne '' && ! $can_dist)
7361 {
7362 err_var ($var,
7363 "invalid variable `$varname': `dist' is forbidden");
7364 }
7365 # Standard directories must be explicitly allowed.
7366 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7367 {
7368 err_var ($var,
7369 "`${X}dir' is not a legitimate directory " .
7370 "for `$primary'");
7371 }
7372 # A not explicitly valid directory is allowed if Xdir is defined.
7373 elsif (! defined $valid{$X} &&
7374 $var->requires_variables ("`$varname' is used", "${X}dir"))
7375 {
7376 # Nothing to do. Any error message has been output
7377 # by $var->requires_variables.
7378 }
7379 else
7380 {
7381 # Ensure all extended prefixes are actually used.
7382 $valid{"$base$dist$X"} = 1;
7383 }
7384 }
7385 else
7386 {
7387 prog_error "unexpected variable name: $varname";
7388 }
7389 }
7391 # Return only those which are actually defined.
7392 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7393 }
7396 # Handle `where_HOW' variable magic. Does all lookups, generates
7397 # install code, and possibly generates code to define the primary
7398 # variable. The first argument is the name of the .am file to munge,
7399 # the second argument is the primary variable (e.g. HEADERS), and all
7400 # subsequent arguments are possible installation locations.
7401 #
7402 # Returns list of [$location, $value] pairs, where
7403 # $value's are the values in all where_HOW variable, and $location
7404 # there associated location (the place here their parent variables were
7405 # defined).
7406 #
7407 # FIXME: this should be rewritten to be cleaner. It should be broken
7408 # up into multiple functions.
7409 #
7410 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7411 sub am_install_var
7412 {
7413 my (@args) = @_;
7415 my $do_require = 1;
7416 my $can_dist = 0;
7417 my $default_dist = 0;
7418 while (@args)
7419 {
7420 if ($args[0] eq '-noextra')
7421 {
7422 $do_require = 0;
7423 }
7424 elsif ($args[0] eq '-candist')
7425 {
7426 $can_dist = 1;
7427 }
7428 elsif ($args[0] eq '-defaultdist')
7429 {
7430 $default_dist = 1;
7431 $can_dist = 1;
7432 }
7433 elsif ($args[0] !~ /^-/)
7434 {
7435 last;
7436 }
7437 shift (@args);
7438 }
7440 my ($file, $primary, @prefix) = @args;
7442 # Now that configure substitutions are allowed in where_HOW
7443 # variables, it is an error to actually define the primary. We
7444 # allow `JAVA', as it is customarily used to mean the Java
7445 # interpreter. This is but one of several Java hacks. Similarly,
7446 # `PYTHON' is customarily used to mean the Python interpreter.
7447 reject_var $primary, "`$primary' is an anachronism"
7448 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7450 # Get the prefixes which are valid and actually used.
7451 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7453 # If a primary includes a configure substitution, then the EXTRA_
7454 # form is required. Otherwise we can't properly do our job.
7455 my $require_extra;
7457 my @used = ();
7458 my @result = ();
7460 foreach my $X (@prefix)
7461 {
7462 my $nodir_name = $X;
7463 my $one_name = $X . '_' . $primary;
7464 my $one_var = var $one_name;
7466 my $strip_subdir = 1;
7467 # If subdir prefix should be preserved, do so.
7468 if ($nodir_name =~ /^nobase_/)
7469 {
7470 $strip_subdir = 0;
7471 $nodir_name =~ s/^nobase_//;
7472 }
7474 # If files should be distributed, do so.
7475 my $dist_p = 0;
7476 if ($can_dist)
7477 {
7478 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7479 || (! $default_dist && $nodir_name =~ /^dist_/));
7480 $nodir_name =~ s/^(dist|nodist)_//;
7481 }
7484 # Use the location of the currently processed variable.
7485 # We are not processing a particular condition, so pick the first
7486 # available.
7487 my $tmpcond = $one_var->conditions->one_cond;
7488 my $where = $one_var->rdef ($tmpcond)->location->clone;
7490 # Append actual contents of where_PRIMARY variable to
7491 # @result, skipping @substitutions@.
7492 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7493 {
7494 my ($loc, $value) = @$locvals;
7495 # Skip configure substitutions.
7496 if ($value =~ /^\@.*\@$/)
7497 {
7498 if ($nodir_name eq 'EXTRA')
7499 {
7500 error ($where,
7501 "`$one_name' contains configure substitution, "
7502 . "but shouldn't");
7503 }
7504 # Check here to make sure variables defined in
7505 # configure.ac do not imply that EXTRA_PRIMARY
7506 # must be defined.
7507 elsif (! defined $configure_vars{$one_name})
7508 {
7509 $require_extra = $one_name
7510 if $do_require;
7511 }
7512 }
7513 else
7514 {
7515 # Strip any $(EXEEXT) suffix the user might have added, or this
7516 # will confuse &handle_source_transform and &check_canonical_spelling.
7517 # We'll add $(EXEEXT) back later anyway.
7518 # Do it here rather than in handle_programs so the uniquifying at the
7519 # end of this function works.
7520 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7521 if $primary eq 'PROGRAMS';
7523 push (@result, $locvals);
7524 }
7525 }
7526 # A blatant hack: we rewrite each _PROGRAMS primary to include
7527 # EXEEXT.
7528 append_exeext { 1 } $one_name
7529 if $primary eq 'PROGRAMS';
7530 # "EXTRA" shouldn't be used when generating clean targets,
7531 # all, or install targets. We used to warn if EXTRA_FOO was
7532 # defined uselessly, but this was annoying.
7533 next
7534 if $nodir_name eq 'EXTRA';
7536 if ($nodir_name eq 'check')
7537 {
7538 push (@check, '$(' . $one_name . ')');
7539 }
7540 else
7541 {
7542 push (@used, '$(' . $one_name . ')');
7543 }
7545 # Is this to be installed?
7546 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7548 # If so, with install-exec? (or install-data?).
7549 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7551 my $check_options_p = $install_p && !! option 'std-options';
7553 # Use the location of the currently processed variable as context.
7554 $where->push_context ("while processing `$one_name'");
7556 # The variable containing all files to distribute.
7557 my $distvar = "\$($one_name)";
7558 $distvar = shadow_unconditionally ($one_name, $where)
7559 if ($dist_p && $one_var->has_conditional_contents);
7561 # Singular form of $PRIMARY.
7562 (my $one_primary = $primary) =~ s/S$//;
7563 $output_rules .= &file_contents ($file, $where,
7564 PRIMARY => $primary,
7565 ONE_PRIMARY => $one_primary,
7566 DIR => $X,
7567 NDIR => $nodir_name,
7568 BASE => $strip_subdir,
7570 EXEC => $exec_p,
7571 INSTALL => $install_p,
7572 DIST => $dist_p,
7573 DISTVAR => $distvar,
7574 'CK-OPTS' => $check_options_p);
7575 }
7577 # The JAVA variable is used as the name of the Java interpreter.
7578 # The PYTHON variable is used as the name of the Python interpreter.
7579 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7580 {
7581 # Define it.
7582 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7583 $output_vars .= "\n";
7584 }
7586 err_var ($require_extra,
7587 "`$require_extra' contains configure substitution,\n"
7588 . "but `EXTRA_$primary' not defined")
7589 if ($require_extra && ! var ('EXTRA_' . $primary));
7591 # Push here because PRIMARY might be configure time determined.
7592 push (@all, '$(' . $primary . ')')
7593 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7595 # Make the result unique. This lets the user use conditionals in
7596 # a natural way, but still lets us program lazily -- we don't have
7597 # to worry about handling a particular object more than once.
7598 # We will keep only one location per object.
7599 my %result = ();
7600 for my $pair (@result)
7601 {
7602 my ($loc, $val) = @$pair;
7603 $result{$val} = $loc;
7604 }
7605 my @l = sort keys %result;
7606 return map { [$result{$_}->clone, $_] } @l;
7607 }
7610 ################################################################
7612 # Each key in this hash is the name of a directory holding a
7613 # Makefile.in. These variables are local to `is_make_dir'.
7614 my %make_dirs = ();
7615 my $make_dirs_set = 0;
7617 sub is_make_dir
7618 {
7619 my ($dir) = @_;
7620 if (! $make_dirs_set)
7621 {
7622 foreach my $iter (@configure_input_files)
7623 {
7624 $make_dirs{dirname ($iter)} = 1;
7625 }
7626 # We also want to notice Makefile.in's.
7627 foreach my $iter (@other_input_files)
7628 {
7629 if ($iter =~ /Makefile\.in$/)
7630 {
7631 $make_dirs{dirname ($iter)} = 1;
7632 }
7633 }
7634 $make_dirs_set = 1;
7635 }
7636 return defined $make_dirs{$dir};
7637 }
7639 ################################################################
7641 # Find the aux dir. This should match the algorithm used by
7642 # ./configure. (See the Autoconf documentation for for
7643 # AC_CONFIG_AUX_DIR.)
7644 sub locate_aux_dir ()
7645 {
7646 if (! $config_aux_dir_set_in_configure_ac)
7647 {
7648 # The default auxiliary directory is the first
7649 # of ., .., or ../.. that contains install-sh.
7650 # Assume . if install-sh doesn't exist yet.
7651 for my $dir (qw (. .. ../..))
7652 {
7653 if (-f "$dir/install-sh")
7654 {
7655 $config_aux_dir = $dir;
7656 last;
7657 }
7658 }
7659 $config_aux_dir = '.' unless $config_aux_dir;
7660 }
7661 # Avoid unsightly '/.'s.
7662 $am_config_aux_dir =
7663 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7664 $am_config_aux_dir =~ s,/*$,,;
7665 }
7668 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7669 # --------------------------------------------------
7670 # See if we want to push this file onto dist_common. This function
7671 # encodes the rules for deciding when to do so.
7672 sub maybe_push_required_file
7673 {
7674 my ($dir, $file, $fullfile) = @_;
7676 if ($dir eq $relative_dir)
7677 {
7678 push_dist_common ($file);
7679 return 1;
7680 }
7681 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7682 {
7683 # If we are doing the topmost directory, and the file is in a
7684 # subdir which does not have a Makefile, then we distribute it
7685 # here.
7687 # If a required file is above the source tree, it is important
7688 # to prefix it with `$(srcdir)' so that no VPATH search is
7689 # performed. Otherwise problems occur with Make implementations
7690 # that rewrite and simplify rules whose dependencies are found in a
7691 # VPATH location. Here is an example with OSF1/Tru64 Make.
7692 #
7693 # % cat Makefile
7694 # VPATH = sub
7695 # distdir: ../a
7696 # echo ../a
7697 # % ls
7698 # Makefile a
7699 # % make
7700 # echo a
7701 # a
7702 #
7703 # Dependency `../a' was found in `sub/../a', but this make
7704 # implementation simplified it as `a'. (Note that the sub/
7705 # directory does not even exist.)
7706 #
7707 # This kind of VPATH rewriting seems hard to cancel. The
7708 # distdir.am hack against VPATH rewriting works only when no
7709 # simplification is done, i.e., for dependencies which are in
7710 # subdirectories, not in enclosing directories. Hence, in
7711 # the latter case we use a full path to make sure no VPATH
7712 # search occurs.
7713 $fullfile = '$(srcdir)/' . $fullfile
7714 if $dir =~ m,^\.\.(?:$|/),;
7716 push_dist_common ($fullfile);
7717 return 1;
7718 }
7719 return 0;
7720 }
7723 # If a file name appears as a key in this hash, then it has already
7724 # been checked for. This allows us not to report the same error more
7725 # than once.
7726 my %required_file_not_found = ();
7728 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7729 # --------------------------------------------------------------
7730 # Verify that the file must exist in $DIRECTORY, or install it.
7731 # $MYSTRICT is the strictness level at which this file becomes required.
7732 sub require_file_internal ($$$@)
7733 {
7734 my ($where, $mystrict, $dir, @files) = @_;
7736 foreach my $file (@files)
7737 {
7738 my $fullfile = "$dir/$file";
7739 my $found_it = 0;
7740 my $dangling_sym = 0;
7742 if (-l $fullfile && ! -f $fullfile)
7743 {
7744 $dangling_sym = 1;
7745 }
7746 elsif (dir_has_case_matching_file ($dir, $file))
7747 {
7748 $found_it = 1;
7749 maybe_push_required_file ($dir, $file, $fullfile);
7750 }
7752 # `--force-missing' only has an effect if `--add-missing' is
7753 # specified.
7754 if ($found_it && (! $add_missing || ! $force_missing))
7755 {
7756 next;
7757 }
7758 else
7759 {
7760 # If we've already looked for it, we're done. You might
7761 # wonder why we don't do this before searching for the
7762 # file. If we do that, then something like
7763 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7764 # DIST_COMMON.
7765 if (! $found_it)
7766 {
7767 next if defined $required_file_not_found{$fullfile};
7768 $required_file_not_found{$fullfile} = 1;
7769 }
7771 if ($strictness >= $mystrict)
7772 {
7773 if ($dangling_sym && $add_missing)
7774 {
7775 unlink ($fullfile);
7776 }
7778 my $trailer = '';
7779 my $trailer2 = '';
7780 my $suppress = 0;
7782 # Only install missing files according to our desired
7783 # strictness level.
7784 my $message = "required file `$fullfile' not found";
7785 if ($add_missing)
7786 {
7787 if (-f "$libdir/$file")
7788 {
7789 $suppress = 1;
7791 # Install the missing file. Symlink if we
7792 # can, copy if we must. Note: delete the file
7793 # first, in case it is a dangling symlink.
7794 $message = "installing `$fullfile'";
7796 # The license file should not be volatile.
7797 if ($file eq "COPYING")
7798 {
7799 $message .= " using GNU General Public License v3 file";
7800 $trailer2 = "\n Consider adding the COPYING file"
7801 . " to the version control system"
7802 . "\n for your code, to avoid questions"
7803 . " about which license your project uses.";
7804 }
7806 # Windows Perl will hang if we try to delete a
7807 # file that doesn't exist.
7808 unlink ($fullfile) if -f $fullfile;
7809 if ($symlink_exists && ! $copy_missing)
7810 {
7811 if (! symlink ("$libdir/$file", $fullfile))
7812 {
7813 $suppress = 0;
7814 $trailer = "; error while making link: $!";
7815 }
7816 }
7817 elsif (system ('cp', "$libdir/$file", $fullfile))
7818 {
7819 $suppress = 0;
7820 $trailer = "\n error while copying";
7821 }
7822 set_dir_cache_file ($dir, $file);
7823 }
7825 if (! maybe_push_required_file (dirname ($fullfile),
7826 $file, $fullfile))
7827 {
7828 if (! $found_it && ! $automake_will_process_aux_dir)
7829 {
7830 # We have added the file but could not push it
7831 # into DIST_COMMON, probably because this is
7832 # an auxiliary file and we are not processing
7833 # the top level Makefile. Furthermore Automake
7834 # hasn't been asked to create the Makefile.in
7835 # that distributes the aux dir files.
7836 error ($where, 'Please make a full run of automake'
7837 . " so $fullfile gets distributed.");
7838 }
7839 }
7840 }
7841 else
7842 {
7843 $trailer = "\n `automake --add-missing' can install `$file'"
7844 if -f "$libdir/$file";
7845 }
7847 # If --force-missing was specified, and we have
7848 # actually found the file, then do nothing.
7849 next
7850 if $found_it && $force_missing;
7852 # If we couldn't install the file, but it is a target in
7853 # the Makefile, don't print anything. This allows files
7854 # like README, AUTHORS, or THANKS to be generated.
7855 next
7856 if !$suppress && rule $file;
7858 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7859 }
7860 }
7861 }
7862 }
7864 # &require_file ($WHERE, $MYSTRICT, @FILES)
7865 # -----------------------------------------
7866 sub require_file ($$@)
7867 {
7868 my ($where, $mystrict, @files) = @_;
7869 require_file_internal ($where, $mystrict, $relative_dir, @files);
7870 }
7872 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7873 # -----------------------------------------------------------
7874 sub require_file_with_macro ($$$@)
7875 {
7876 my ($cond, $macro, $mystrict, @files) = @_;
7877 $macro = rvar ($macro) unless ref $macro;
7878 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7879 }
7881 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7882 # ----------------------------------------------------------------
7883 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7884 # must be in that directory. Otherwise expect it in the current directory.
7885 sub require_libsource_with_macro ($$$@)
7886 {
7887 my ($cond, $macro, $mystrict, @files) = @_;
7888 $macro = rvar ($macro) unless ref $macro;
7889 if ($config_libobj_dir)
7890 {
7891 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7892 $config_libobj_dir, @files);
7893 }
7894 else
7895 {
7896 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7897 }
7898 }
7900 # Queue to push require_conf_file requirements to.
7901 my $required_conf_file_queue;
7903 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
7904 # -------------------------------------------------------------------------
7905 sub queue_required_conf_file ($$$$@)
7906 {
7907 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
7908 my @serial_loc;
7909 if (ref $where)
7910 {
7911 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
7912 }
7913 else
7914 {
7915 @serial_loc = (QUEUE_STRING, $where);
7916 }
7917 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
7918 }
7920 # &require_queued_conf_file ($QUEUE)
7921 # ----------------------------------
7922 sub require_queued_conf_file ($)
7923 {
7924 my ($queue) = @_;
7925 my $where;
7926 my $dir = $queue->dequeue ();
7927 my $loc_key = $queue->dequeue ();
7928 if ($loc_key eq QUEUE_LOCATION)
7929 {
7930 $where = Automake::Location::deserialize ($queue);
7931 }
7932 elsif ($loc_key eq QUEUE_STRING)
7933 {
7934 $where = $queue->dequeue ();
7935 }
7936 else
7937 {
7938 prog_error "unexpected key $loc_key";
7939 }
7940 my $mystrict = $queue->dequeue ();
7941 my $nfiles = $queue->dequeue ();
7942 my @files;
7943 push @files, $queue->dequeue ()
7944 foreach (1 .. $nfiles);
7946 # Dequeuing happens outside of per-makefile context, so we have to
7947 # set the variables used by require_file_internal and the functions
7948 # it calls. Gross!
7949 $relative_dir = $dir;
7950 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7951 }
7953 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7954 # ----------------------------------------------
7955 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
7956 # worker threads may queue up the action to be serialized by the master.
7957 #
7958 # FIXME: this seriously relies on the semantics of require_file_internal
7959 # and maybe_push_required_file, in that we exploit the fact that only the
7960 # contents of the last handled output file may be impacted (which in turn
7961 # is dealt with by the master thread).
7962 sub require_conf_file ($$@)
7963 {
7964 my ($where, $mystrict, @files) = @_;
7965 if (defined $required_conf_file_queue)
7966 {
7967 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
7968 $relative_dir, $where, $mystrict, @files);
7969 }
7970 else
7971 {
7972 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7973 }
7974 }
7977 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7978 # ----------------------------------------------------------------
7979 sub require_conf_file_with_macro ($$$@)
7980 {
7981 my ($cond, $macro, $mystrict, @files) = @_;
7982 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7983 $mystrict, @files);
7984 }
7986 ################################################################
7988 # &require_build_directory ($DIRECTORY)
7989 # ------------------------------------
7990 # Emit rules to create $DIRECTORY if needed, and return
7991 # the file that any target requiring this directory should be made
7992 # dependent upon.
7993 # We don't want to emit the rule twice, and want to reuse it
7994 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7995 sub require_build_directory ($)
7996 {
7997 my $directory = shift;
7999 return $directory_map{$directory} if exists $directory_map{$directory};
8001 my $cdir = File::Spec->canonpath ($directory);
8003 if (exists $directory_map{$cdir})
8004 {
8005 my $stamp = $directory_map{$cdir};
8006 $directory_map{$directory} = $stamp;
8007 return $stamp;
8008 }
8010 my $dirstamp = "$cdir/\$(am__dirstamp)";
8012 $directory_map{$directory} = $dirstamp;
8013 $directory_map{$cdir} = $dirstamp;
8015 # Set a variable for the dirstamp basename.
8016 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8017 '$(am__leading_dot)dirstamp');
8019 # Directory must be removed by `make distclean'.
8020 $clean_files{$dirstamp} = DIST_CLEAN;
8022 $output_rules .= ("$dirstamp:\n"
8023 . "\t\@\$(MKDIR_P) $directory\n"
8024 . "\t\@: > $dirstamp\n");
8026 return $dirstamp;
8027 }
8029 # &require_build_directory_maybe ($FILE)
8030 # --------------------------------------
8031 # If $FILE lies in a subdirectory, emit a rule to create this
8032 # directory and return the file that $FILE should be made
8033 # dependent upon. Otherwise, just return the empty string.
8034 sub require_build_directory_maybe ($)
8035 {
8036 my $file = shift;
8037 my $directory = dirname ($file);
8039 if ($directory ne '.')
8040 {
8041 return require_build_directory ($directory);
8042 }
8043 else
8044 {
8045 return '';
8046 }
8047 }
8049 ################################################################
8051 # Push a list of files onto dist_common.
8052 sub push_dist_common
8053 {
8054 prog_error "push_dist_common run after handle_dist"
8055 if $handle_dist_run;
8056 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8057 '', INTERNAL, VAR_PRETTY);
8058 }
8061 ################################################################
8063 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8064 # ----------------------------------------------
8065 # Generate a Makefile.in given the name of the corresponding Makefile and
8066 # the name of the file output by config.status.
8067 sub generate_makefile ($$)
8068 {
8069 my ($makefile_am, $makefile_in) = @_;
8071 # Reset all the Makefile.am related variables.
8072 initialize_per_input;
8074 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8075 # warnings for this file. So hold any warning issued before
8076 # we have processed AUTOMAKE_OPTIONS.
8077 buffer_messages ('warning');
8079 # Name of input file ("Makefile.am") and output file
8080 # ("Makefile.in"). These have no directory components.
8081 $am_file_name = basename ($makefile_am);
8082 $in_file_name = basename ($makefile_in);
8084 # $OUTPUT is encoded. If it contains a ":" then the first element
8085 # is the real output file, and all remaining elements are input
8086 # files. We don't scan or otherwise deal with these input files,
8087 # other than to mark them as dependencies. See
8088 # &scan_autoconf_files for details.
8089 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8091 $relative_dir = dirname ($makefile);
8092 $am_relative_dir = dirname ($makefile_am);
8093 $topsrcdir = backname ($relative_dir);
8095 read_main_am_file ($makefile_am);
8096 if (handle_options)
8097 {
8098 # Process buffered warnings.
8099 flush_messages;
8100 # Fatal error. Just return, so we can continue with next file.
8101 return;
8102 }
8103 # Process buffered warnings.
8104 flush_messages;
8106 # There are a few install-related variables that you should not define.
8107 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8108 {
8109 my $v = var $var;
8110 if ($v)
8111 {
8112 my $def = $v->def (TRUE);
8113 prog_error "$var not defined in condition TRUE"
8114 unless $def;
8115 reject_var $var, "`$var' should not be defined"
8116 if $def->owner != VAR_AUTOMAKE;
8117 }
8118 }
8120 # Catch some obsolete variables.
8121 msg_var ('obsolete', 'INCLUDES',
8122 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8123 if var ('INCLUDES');
8125 # Must do this after reading .am file.
8126 define_variable ('subdir', $relative_dir, INTERNAL);
8128 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8129 # recursive rules are enabled.
8130 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8131 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8133 # Check first, because we might modify some state.
8134 check_cygnus;
8135 check_gnu_standards;
8136 check_gnits_standards;
8138 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8139 handle_gettext;
8140 handle_libraries;
8141 handle_ltlibraries;
8142 handle_programs;
8143 handle_scripts;
8145 # These must be run after all the sources are scanned. They
8146 # use variables defined by &handle_libraries, &handle_ltlibraries,
8147 # or &handle_programs.
8148 handle_compile;
8149 handle_languages;
8150 handle_libtool;
8152 # Variables used by distdir.am and tags.am.
8153 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8154 if (! option 'no-dist')
8155 {
8156 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8157 }
8159 handle_multilib;
8160 handle_texinfo;
8161 handle_emacs_lisp;
8162 handle_python;
8163 handle_java;
8164 handle_man_pages;
8165 handle_data;
8166 handle_headers;
8167 handle_subdirs;
8168 handle_tags;
8169 handle_minor_options;
8170 # Must come after handle_programs so that %known_programs is up-to-date.
8171 handle_tests;
8173 # This must come after most other rules.
8174 handle_dist;
8176 handle_footer;
8177 do_check_merge_target;
8178 handle_all ($makefile);
8180 # FIXME: Gross!
8181 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8182 {
8183 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8184 }
8185 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8186 {
8187 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8188 }
8190 handle_install;
8191 handle_clean ($makefile);
8192 handle_factored_dependencies;
8194 # Comes last, because all the above procedures may have
8195 # defined or overridden variables.
8196 $output_vars .= output_variables;
8198 check_typos;
8200 my ($out_file) = $output_directory . '/' . $makefile_in;
8202 if ($exit_code != 0)
8203 {
8204 verb "not writing $out_file because of earlier errors";
8205 return;
8206 }
8208 if (! -d ($output_directory . '/' . $am_relative_dir))
8209 {
8210 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8211 }
8213 # We make sure that `all:' is the first target.
8214 my $output =
8215 "$output_vars$output_all$output_header$output_rules$output_trailer";
8217 # Decide whether we must update the output file or not.
8218 # We have to update in the following situations.
8219 # * $force_generation is set.
8220 # * any of the output dependencies is younger than the output
8221 # * the contents of the output is different (this can happen
8222 # if the project has been populated with a file listed in
8223 # @common_files since the last run).
8224 # Output's dependencies are split in two sets:
8225 # * dependencies which are also configure dependencies
8226 # These do not change between each Makefile.am
8227 # * other dependencies, specific to the Makefile.am being processed
8228 # (such as the Makefile.am itself, or any Makefile fragment
8229 # it includes).
8230 my $timestamp = mtime $out_file;
8231 if (! $force_generation
8232 && $configure_deps_greatest_timestamp < $timestamp
8233 && $output_deps_greatest_timestamp < $timestamp
8234 && $output eq contents ($out_file))
8235 {
8236 verb "$out_file unchanged";
8237 # No need to update.
8238 return;
8239 }
8241 if (-e $out_file)
8242 {
8243 unlink ($out_file)
8244 or fatal "cannot remove $out_file: $!\n";
8245 }
8247 my $gm_file = new Automake::XFile "> $out_file";
8248 verb "creating $out_file";
8249 print $gm_file $output;
8250 }
8252 ################################################################
8257 ################################################################
8259 # Print usage information.
8260 sub usage ()
8261 {
8262 print "Usage: $0 [OPTION] ... [Makefile]...
8264 Generate Makefile.in for configure from Makefile.am.
8266 Operation modes:
8267 --help print this help, then exit
8268 --version print version number, then exit
8269 -v, --verbose verbosely list files processed
8270 --no-force only update Makefile.in's that are out of date
8271 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8273 Dependency tracking:
8274 -i, --ignore-deps disable dependency tracking code
8275 --include-deps enable dependency tracking code
8277 Flavors:
8278 --cygnus assume program is part of Cygnus-style tree
8279 --foreign set strictness to foreign
8280 --gnits set strictness to gnits
8281 --gnu set strictness to gnu
8283 Library files:
8284 -a, --add-missing add missing standard files to package
8285 --libdir=DIR directory storing library files
8286 -c, --copy with -a, copy missing files (default is symlink)
8287 -f, --force-missing force update of standard files
8289 ";
8290 Automake::ChannelDefs::usage;
8292 my ($last, @lcomm);
8293 $last = '';
8294 foreach my $iter (sort ((@common_files, @common_sometimes)))
8295 {
8296 push (@lcomm, $iter) unless $iter eq $last;
8297 $last = $iter;
8298 }
8300 my @four;
8301 print "\nFiles which are automatically distributed, if found:\n";
8302 format USAGE_FORMAT =
8303 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8304 $four[0], $four[1], $four[2], $four[3]
8305 .
8306 $~ = "USAGE_FORMAT";
8308 my $cols = 4;
8309 my $rows = int(@lcomm / $cols);
8310 my $rest = @lcomm % $cols;
8312 if ($rest)
8313 {
8314 $rows++;
8315 }
8316 else
8317 {
8318 $rest = $cols;
8319 }
8321 for (my $y = 0; $y < $rows; $y++)
8322 {
8323 @four = ("", "", "", "");
8324 for (my $x = 0; $x < $cols; $x++)
8325 {
8326 last if $y + 1 == $rows && $x == $rest;
8328 my $idx = (($x > $rest)
8329 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8330 : ($rows * $x));
8332 $idx += $y;
8333 $four[$x] = $lcomm[$idx];
8334 }
8335 write;
8336 }
8338 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
8340 # --help always returns 0 per GNU standards.
8341 exit 0;
8342 }
8345 # &version ()
8346 # -----------
8347 # Print version information
8348 sub version ()
8349 {
8350 print <<EOF;
8351 automake (GNU $PACKAGE) $VERSION
8352 Copyright (C) 2009 Free Software Foundation, Inc.
8353 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
8354 This is free software: you are free to change and redistribute it.
8355 There is NO WARRANTY, to the extent permitted by law.
8357 Written by Tom Tromey <tromey\@redhat.com>
8358 and Alexandre Duret-Lutz <adl\@gnu.org>.
8359 EOF
8360 # --version always returns 0 per GNU standards.
8361 exit 0;
8362 }
8364 ################################################################
8366 # Parse command line.
8367 sub parse_arguments ()
8368 {
8369 # Start off as gnu.
8370 set_strictness ('gnu');
8372 my $cli_where = new Automake::Location;
8373 my %cli_options =
8374 (
8375 'libdir=s' => \$libdir,
8376 'gnu' => sub { set_strictness ('gnu'); },
8377 'gnits' => sub { set_strictness ('gnits'); },
8378 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8379 'foreign' => sub { set_strictness ('foreign'); },
8380 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8381 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8382 $cli_where); },
8383 'no-force' => sub { $force_generation = 0; },
8384 'f|force-missing' => \$force_missing,
8385 'o|output-dir=s' => \$output_directory,
8386 'a|add-missing' => \$add_missing,
8387 'c|copy' => \$copy_missing,
8388 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8389 'W|warnings=s' => \&parse_warnings,
8390 # These long options (--Werror and --Wno-error) for backward
8391 # compatibility. Use -Werror and -Wno-error today.
8392 'Werror' => sub { parse_warnings 'W', 'error'; },
8393 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8394 );
8395 use Getopt::Long;
8396 Getopt::Long::config ("bundling", "pass_through");
8398 # See if --version or --help is used. We want to process these before
8399 # anything else because the GNU Coding Standards require us to
8400 # `exit 0' after processing these options, and we can't guarantee this
8401 # if we treat other options first. (Handling other options first
8402 # could produce error diagnostics, and in this condition it is
8403 # confusing if Automake does `exit 0'.)
8404 my %cli_options_1st_pass =
8405 (
8406 'version' => \&version,
8407 'help' => \&usage,
8408 # Recognize all other options (and their arguments) but do nothing.
8409 map { $_ => sub {} } (keys %cli_options)
8410 );
8411 my @ARGV_backup = @ARGV;
8412 Getopt::Long::GetOptions %cli_options_1st_pass
8413 or exit 1;
8414 @ARGV = @ARGV_backup;
8416 # Now *really* process the options. This time we know that --help
8417 # and --version are not present, but we specify them nonetheless so
8418 # that ambiguous abbreviation are diagnosed.
8419 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8420 or exit 1;
8422 if (defined $output_directory)
8423 {
8424 msg 'obsolete', "`--output-dir' is deprecated\n";
8425 }
8426 else
8427 {
8428 # In the next release we'll remove this entirely.
8429 $output_directory = '.';
8430 }
8432 return unless @ARGV;
8434 if ($ARGV[0] =~ /^-./)
8435 {
8436 my %argopts;
8437 for my $k (keys %cli_options)
8438 {
8439 if ($k =~ /(.*)=s$/)
8440 {
8441 map { $argopts{(length ($_) == 1)
8442 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
8443 }
8444 }
8445 if ($ARGV[0] eq '--')
8446 {
8447 shift @ARGV;
8448 }
8449 elsif (exists $argopts{$ARGV[0]})
8450 {
8451 fatal ("option `$ARGV[0]' requires an argument\n"
8452 . "Try `$0 --help' for more information.");
8453 }
8454 else
8455 {
8456 fatal ("unrecognized option `$ARGV[0]'.\n"
8457 . "Try `$0 --help' for more information.");
8458 }
8459 }
8461 my $errspec = 0;
8462 foreach my $arg (@ARGV)
8463 {
8464 fatal ("empty argument\nTry `$0 --help' for more information.")
8465 if ($arg eq '');
8467 # Handle $local:$input syntax.
8468 my ($local, @rest) = split (/:/, $arg);
8469 @rest = ("$local.in",) unless @rest;
8470 my $input = locate_am @rest;
8471 if ($input)
8472 {
8473 push @input_files, $input;
8474 $output_files{$input} = join (':', ($local, @rest));
8475 }
8476 else
8477 {
8478 error "no Automake input file found for `$arg'";
8479 $errspec = 1;
8480 }
8481 }
8482 fatal "no input file found among supplied arguments"
8483 if $errspec && ! @input_files;
8484 }
8487 # handle_makefile ($MAKEFILE_IN)
8488 # ------------------------------
8489 # Deal with $MAKEFILE_IN.
8490 sub handle_makefile ($)
8491 {
8492 my ($file) = @_;
8493 ($am_file = $file) =~ s/\.in$//;
8494 if (! -f ($am_file . '.am'))
8495 {
8496 error "`$am_file.am' does not exist";
8497 }
8498 else
8499 {
8500 # Any warning setting now local to this Makefile.am.
8501 dup_channel_setup;
8503 generate_makefile ($am_file . '.am', $file);
8505 # Back out any warning setting.
8506 drop_channel_setup;
8507 }
8508 }
8510 # handle_makefiles_serial ()
8511 # --------------------------
8512 # Deal with all makefiles, without threads.
8513 sub handle_makefiles_serial ()
8514 {
8515 foreach my $file (@input_files)
8516 {
8517 handle_makefile ($file);
8518 }
8519 }
8521 # get_number_of_threads ()
8522 # ------------------------
8523 # Logic for deciding how many worker threads to use.
8524 sub get_number_of_threads
8525 {
8526 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8528 $nthreads = 0
8529 unless $nthreads =~ /^[0-9]+$/;
8531 # It doesn't make sense to use more threads than makefiles,
8532 my $max_threads = @input_files;
8534 # but a single worker thread is helpful for exposing bugs.
8535 if ($automake_will_process_aux_dir && $max_threads > 1)
8536 {
8537 $max_threads--;
8538 }
8539 if ($nthreads > $max_threads)
8540 {
8541 $nthreads = $max_threads;
8542 }
8543 return $nthreads;
8544 }
8546 # handle_makefiles_threaded ($NTHREADS)
8547 # -------------------------------------
8548 # Deal with all makefiles, using threads. The general strategy is to
8549 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8550 # worker threads push back everything that needs serialization:
8551 # * warning and (normal) error messages, for stable stderr output
8552 # order and content (avoiding duplicates, for example),
8553 # * races when installing aux files (and respective messages),
8554 # * races when collecting aux files for distribution.
8555 #
8556 # The latter requires that the makefile that deals with the aux dir
8557 # files be handled last, done by the master thread.
8558 sub handle_makefiles_threaded ($)
8559 {
8560 my ($nthreads) = @_;
8562 my @queued_input_files = @input_files;
8563 my $last_input_file = undef;
8564 if ($automake_will_process_aux_dir)
8565 {
8566 $last_input_file = pop @queued_input_files;
8567 }
8569 # The file queue distributes all makefiles, the message queues
8570 # collect all serializations needed for respective files.
8571 my $file_queue = Thread::Queue->new;
8572 my %msg_queues;
8573 foreach my $file (@queued_input_files)
8574 {
8575 $msg_queues{$file} = Thread::Queue->new;
8576 }
8578 verb "spawning $nthreads worker threads";
8579 my @threads = (1 .. $nthreads);
8580 foreach my $t (@threads)
8581 {
8582 $t = threads->new (sub
8583 {
8584 while (my $file = $file_queue->dequeue)
8585 {
8586 verb "handling $file";
8587 my $queue = $msg_queues{$file};
8588 setup_channel_queue ($queue, QUEUE_MESSAGE);
8589 $required_conf_file_queue = $queue;
8590 handle_makefile ($file);
8591 $queue->enqueue (undef);
8592 setup_channel_queue (undef, undef);
8593 $required_conf_file_queue = undef;
8594 }
8595 return $exit_code;
8596 });
8597 }
8599 # Queue all normal makefiles.
8600 verb "queuing " . @queued_input_files . " input files";
8601 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8603 # Collect and process serializations.
8604 foreach my $file (@queued_input_files)
8605 {
8606 verb "dequeuing messages for " . $file;
8607 reset_local_duplicates ();
8608 my $queue = $msg_queues{$file};
8609 while (my $key = $queue->dequeue)
8610 {
8611 if ($key eq QUEUE_MESSAGE)
8612 {
8613 pop_channel_queue ($queue);
8614 }
8615 elsif ($key eq QUEUE_CONF_FILE)
8616 {
8617 require_queued_conf_file ($queue);
8618 }
8619 else
8620 {
8621 prog_error "unexpected key $key";
8622 }
8623 }
8624 }
8626 foreach my $t (@threads)
8627 {
8628 my @exit_thread = $t->join;
8629 $exit_code = $exit_thread[0]
8630 if ($exit_thread[0] > $exit_code);
8631 }
8633 # The master processes the last file.
8634 if ($automake_will_process_aux_dir)
8635 {
8636 verb "processing last input file";
8637 handle_makefile ($last_input_file);
8638 }
8639 }
8641 ################################################################
8643 # Parse the WARNINGS environment variable.
8644 parse_WARNINGS;
8646 # Parse command line.
8647 parse_arguments;
8649 $configure_ac = require_configure_ac;
8651 # Do configure.ac scan only once.
8652 scan_autoconf_files;
8654 if (! @input_files)
8655 {
8656 my $msg = '';
8657 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8658 if -f 'Makefile.am';
8659 fatal ("no `Makefile.am' found for any configure output$msg");
8660 }
8662 my $nthreads = get_number_of_threads ();
8664 if ($perl_threads && $nthreads >= 1)
8665 {
8666 handle_makefiles_threaded ($nthreads);
8667 }
8668 else
8669 {
8670 handle_makefiles_serial ();
8671 }
8673 exit $exit_code;
8676 ### Setup "GNU" style for perl-mode and cperl-mode.
8677 ## Local Variables:
8678 ## perl-indent-level: 2
8679 ## perl-continued-statement-offset: 2
8680 ## perl-continued-brace-offset: 0
8681 ## perl-brace-offset: 0
8682 ## perl-brace-imaginary-offset: 0
8683 ## perl-label-offset: -2
8684 ## cperl-indent-level: 2
8685 ## cperl-brace-offset: 0
8686 ## cperl-continued-brace-offset: 0
8687 ## cperl-label-offset: -2
8688 ## cperl-extra-newline-before-brace: t
8689 ## cperl-merge-trailing-else: nil
8690 ## cperl-continued-statement-offset: 2
8691 ## End: