| blob | 591b451dfebb4a9db3325f75de463284c9ea9fe1 |
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 Free Software Foundation, Inc.
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License as published by
14 # the Free Software Foundation; either version 3, or (at your option)
15 # any later version.
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program. If not, see <http://www.gnu.org/licenses/>.
25 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
26 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
27 # Alexandre Duret-Lutz <adl@gnu.org>.
29 package Language;
31 BEGIN
32 {
33 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
34 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
36 # Override SHELL. This is required on DJGPP so that system() uses
37 # bash, not COMMAND.COM which doesn't quote arguments properly.
38 # Other systems aren't expected to use $SHELL when Automake
39 # runs, but it should be safe to drop the `if DJGPP' guard if
40 # it turns up other systems need the same thing. After all,
41 # if SHELL is used, ./configure's SHELL is always better than
42 # the user's SHELL (which may be something like tcsh).
43 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJGPP'};
44 }
46 use Automake::Struct;
47 struct (# Short name of the language (c, f77...).
48 'name' => "\$",
49 # Nice name of the language (C, Fortran 77...).
50 'Name' => "\$",
52 # List of configure variables which must be defined.
53 'config_vars' => '@',
55 'ansi' => "\$",
56 # `pure' is `1' or `'. A `pure' language is one where, if
57 # all the files in a directory are of that language, then we
58 # do not require the C compiler or any code to call it.
59 'pure' => "\$",
61 'autodep' => "\$",
63 # Name of the compiling variable (COMPILE).
64 'compiler' => "\$",
65 # Content of the compiling variable.
66 'compile' => "\$",
67 # Flag to require compilation without linking (-c).
68 'compile_flag' => "\$",
69 'extensions' => '@',
70 # A subroutine to compute a list of possible extensions of
71 # the product given the input extensions.
72 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
73 'output_extensions' => "\$",
74 # A list of flag variables used in 'compile'.
75 # (defaults to [])
76 'flags' => "@",
78 # Any tag to pass to libtool while compiling.
79 'libtool_tag' => "\$",
81 # The file to use when generating rules for this language.
82 # The default is 'depend2'.
83 'rule_file' => "\$",
85 # Name of the linking variable (LINK).
86 'linker' => "\$",
87 # Content of the linking variable.
88 'link' => "\$",
90 # Name of the linker variable (LD).
91 'lder' => "\$",
92 # Content of the linker variable ($(CC)).
93 'ld' => "\$",
95 # Flag to specify the output file (-o).
96 'output_flag' => "\$",
97 '_finish' => "\$",
99 # This is a subroutine which is called whenever we finally
100 # determine the context in which a source file will be
101 # compiled.
102 '_target_hook' => "\$",
104 # If TRUE, nodist_ sources will be compiled using specific rules
105 # (i.e. not inference rules). The default is FALSE.
106 'nodist_specific' => "\$");
109 sub finish ($)
110 {
111 my ($self) = @_;
112 if (defined $self->_finish)
113 {
114 &{$self->_finish} ();
115 }
116 }
118 sub target_hook ($$$$%)
119 {
120 my ($self) = @_;
121 if (defined $self->_target_hook)
122 {
123 &{$self->_target_hook} (@_);
124 }
125 }
127 package Automake;
129 use strict;
130 use Automake::Config;
131 use Automake::General;
132 use Automake::XFile;
133 use Automake::Channels;
134 use Automake::ChannelDefs;
135 use Automake::Configure_ac;
136 use Automake::FileUtils;
137 use Automake::Location;
138 use Automake::Condition qw/TRUE FALSE/;
139 use Automake::DisjConditions;
140 use Automake::Options;
141 use Automake::Version;
142 use Automake::Variable;
143 use Automake::VarDef;
144 use Automake::Rule;
145 use Automake::RuleDef;
146 use Automake::Wrap 'makefile_wrap';
147 use File::Basename;
148 use File::Spec;
149 use Carp;
151 ## ----------- ##
152 ## Constants. ##
153 ## ----------- ##
155 # Some regular expressions. One reason to put them here is that it
156 # makes indentation work better in Emacs.
158 # Writing singled-quoted-$-terminated regexes is a pain because
159 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
160 # by a closing quote. Letting perl-mode think the quote is not closed
161 # leads to all sort of misindentations. On the other hand, defining
162 # regexes as double-quoted strings is far less readable. So usually
163 # we will write:
164 #
165 # $REGEX = '^regex_value' . "\$";
167 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
168 my $WHITE_PATTERN = '^\s*' . "\$";
169 my $COMMENT_PATTERN = '^#';
170 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
171 # A rule has three parts: a list of targets, a list of dependencies,
172 # and optionally actions.
173 my $RULE_PATTERN =
174 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
176 # Only recognize leading spaces, not leading tabs. If we recognize
177 # leading tabs here then we need to make the reader smarter, because
178 # otherwise it will think rules like `foo=bar; \' are errors.
179 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
180 # This pattern recognizes a Gnits version id and sets $1 if the
181 # release is an alpha release. We also allow a suffix which can be
182 # used to extend the version number with a "fork" identifier.
183 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
185 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
186 my $ELSE_PATTERN =
187 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
188 my $ENDIF_PATTERN =
189 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
190 my $PATH_PATTERN = '(\w|[+/.-])+';
191 # This will pass through anything not of the prescribed form.
192 my $INCLUDE_PATTERN = ('^include\s+'
193 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
194 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
195 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
197 # Match `-d' as a command-line argument in a string.
198 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
199 # Directories installed during 'install-exec' phase.
200 my $EXEC_DIR_PATTERN =
201 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
203 # Values for AC_CANONICAL_*
204 use constant AC_CANONICAL_BUILD => 1;
205 use constant AC_CANONICAL_HOST => 2;
206 use constant AC_CANONICAL_TARGET => 3;
208 # Values indicating when something should be cleaned.
209 use constant MOSTLY_CLEAN => 0;
210 use constant CLEAN => 1;
211 use constant DIST_CLEAN => 2;
212 use constant MAINTAINER_CLEAN => 3;
214 # Libtool files.
215 my @libtool_files = qw(ltmain.sh config.guess config.sub);
216 # ltconfig appears here for compatibility with old versions of libtool.
217 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
219 # Commonly found files we look for and automatically include in
220 # DISTFILES.
221 my @common_files =
222 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
223 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
224 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
225 depcomp elisp-comp install-sh libversion.in mdate-sh missing
226 mkinstalldirs py-compile texinfo.tex ylwrap),
227 @libtool_files, @libtool_sometimes);
229 # Commonly used files we auto-include, but only sometimes. This list
230 # is used for the --help output only.
231 my @common_sometimes =
232 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
233 configure.ac configure.in stamp-vti);
235 # Standard directories from the GNU Coding Standards, and additional
236 # pkg* directories from Automake. Stored in a hash for fast member check.
237 my %standard_prefix =
238 map { $_ => 1 } (qw(bin data dataroot dvi exec html include info
239 lib libexec lisp localstate man man1 man2 man3
240 man4 man5 man6 man7 man8 man9 oldinclude pdf
241 pkgdatadir pkgincludedir pkglibdir pkglibexecdir
242 ps sbin sharedstate sysconf));
244 # Copyright on generated Makefile.ins.
245 my $gen_copyright = "\
246 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
247 # 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
248 # This Makefile.in is free software; the Free Software Foundation
249 # gives unlimited permission to copy and/or distribute it,
250 # with or without modifications, as long as this notice is preserved.
252 # This program is distributed in the hope that it will be useful,
253 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
254 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
255 # PARTICULAR PURPOSE.
256 ";
258 # These constants are returned by the lang_*_rewrite functions.
259 # LANG_SUBDIR means that the resulting object file should be in a
260 # subdir if the source file is. In this case the file name cannot
261 # have `..' components.
262 use constant LANG_IGNORE => 0;
263 use constant LANG_PROCESS => 1;
264 use constant LANG_SUBDIR => 2;
266 # These are used when keeping track of whether an object can be built
267 # by two different paths.
268 use constant COMPILE_LIBTOOL => 1;
269 use constant COMPILE_ORDINARY => 2;
271 # We can't always associate a location to a variable or a rule,
272 # when it's defined by Automake. We use INTERNAL in this case.
273 use constant INTERNAL => new Automake::Location;
274 \f
276 ## ---------------------------------- ##
277 ## Variables related to the options. ##
278 ## ---------------------------------- ##
280 # TRUE if we should always generate Makefile.in.
281 my $force_generation = 1;
283 # From the Perl manual.
284 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
286 # TRUE if missing standard files should be installed.
287 my $add_missing = 0;
289 # TRUE if we should copy missing files; otherwise symlink if possible.
290 my $copy_missing = 0;
292 # TRUE if we should always update files that we know about.
293 my $force_missing = 0;
296 ## ---------------------------------------- ##
297 ## Variables filled during files scanning. ##
298 ## ---------------------------------------- ##
300 # Name of the configure.ac file.
301 my $configure_ac;
303 # Files found by scanning configure.ac for LIBOBJS.
304 my %libsources = ();
306 # Names used in AC_CONFIG_HEADER call.
307 my @config_headers = ();
309 # Names used in AC_CONFIG_LINKS call.
310 my @config_links = ();
312 # Directory where output files go. Actually, output files are
313 # relative to this directory.
314 my $output_directory;
316 # List of Makefile.am's to process, and their corresponding outputs.
317 my @input_files = ();
318 my %output_files = ();
320 # Complete list of Makefile.am's that exist.
321 my @configure_input_files = ();
323 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
324 # and their outputs.
325 my @other_input_files = ();
326 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
327 # The keys are the files created by these macros.
328 my %ac_config_files_location = ();
329 # The condition under which AC_CONFIG_FOOS appears.
330 my %ac_config_files_condition = ();
332 # Directory to search for configure-required files. This
333 # will be computed by &locate_aux_dir and can be set using
334 # AC_CONFIG_AUX_DIR in configure.ac.
335 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
336 my $config_aux_dir = '';
337 my $config_aux_dir_set_in_configure_ac = 0;
338 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
339 # in Makefiles.
340 my $am_config_aux_dir = '';
342 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
343 # in configure.ac.
344 my $config_libobj_dir = '';
346 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
347 my $seen_gettext = 0;
348 # Whether AM_GNU_GETTEXT([external]) is used.
349 my $seen_gettext_external = 0;
350 # Where AM_GNU_GETTEXT appears.
351 my $ac_gettext_location;
352 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
353 my $seen_gettext_intl = 0;
355 # Lists of tags supported by Libtool.
356 my %libtool_tags = ();
357 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
358 # uses AC_REQUIRE_AUX_FILE.
359 my $libtool_new_api = 0;
361 # Most important AC_CANONICAL_* macro seen so far.
362 my $seen_canonical = 0;
363 # Location of that macro.
364 my $canonical_location;
366 # Where AM_MAINTAINER_MODE appears.
367 my $seen_maint_mode;
369 # Actual version we've seen.
370 my $package_version = '';
372 # Where version is defined.
373 my $package_version_location;
375 # TRUE if we've seen AM_ENABLE_MULTILIB.
376 my $seen_multilib = 0;
378 # TRUE if we've seen AM_PROG_CC_C_O
379 my $seen_cc_c_o = 0;
381 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
382 my %required_aux_file = ();
384 # Where AM_INIT_AUTOMAKE is called;
385 my $seen_init_automake = 0;
387 # TRUE if we've seen AM_AUTOMAKE_VERSION.
388 my $seen_automake_version = 0;
390 # Hash table of discovered configure substitutions. Keys are names,
391 # values are `FILE:LINE' strings which are used by error message
392 # generation.
393 my %configure_vars = ();
395 # Ignored configure substitutions (i.e., variables not to be output in
396 # Makefile.in)
397 my %ignored_configure_vars = ();
399 # Files included by $configure_ac.
400 my @configure_deps = ();
402 # Greatest timestamp of configure's dependencies.
403 my $configure_deps_greatest_timestamp = 0;
405 # Hash table of AM_CONDITIONAL variables seen in configure.
406 my %configure_cond = ();
408 # This maps extensions onto language names.
409 my %extension_map = ();
411 # List of the DIST_COMMON files we discovered while reading
412 # configure.in
413 my $configure_dist_common = '';
415 # This maps languages names onto objects.
416 my %languages = ();
417 # Maps each linker variable onto a language object.
418 my %link_languages = ();
420 # maps extensions to needed source flags.
421 my %sourceflags = ();
423 # List of targets we must always output.
424 # FIXME: Complete, and remove falsely required targets.
425 my %required_targets =
426 (
427 'all' => 1,
428 'dvi' => 1,
429 'pdf' => 1,
430 'ps' => 1,
431 'info' => 1,
432 'install-info' => 1,
433 'install' => 1,
434 'install-data' => 1,
435 'install-exec' => 1,
436 'uninstall' => 1,
438 # FIXME: Not required, temporary hacks.
439 # Well, actually they are sort of required: the -recursive
440 # targets will run them anyway...
441 'dvi-am' => 1,
442 'pdf-am' => 1,
443 'ps-am' => 1,
444 'info-am' => 1,
445 'install-data-am' => 1,
446 'install-exec-am' => 1,
447 'installcheck-am' => 1,
448 'uninstall-am' => 1,
450 'install-man' => 1,
451 );
453 # Set to 1 if this run will create the Makefile.in that distribute
454 # the files in config_aux_dir.
455 my $automake_will_process_aux_dir = 0;
457 # The name of the Makefile currently being processed.
458 my $am_file = 'BUG';
459 \f
461 ################################################################
463 ## ------------------------------------------ ##
464 ## Variables reset by &initialize_per_input. ##
465 ## ------------------------------------------ ##
467 # Basename and relative dir of the input file.
468 my $am_file_name;
469 my $am_relative_dir;
471 # Same but wrt Makefile.in.
472 my $in_file_name;
473 my $relative_dir;
475 # Relative path to the top directory.
476 my $topsrcdir;
478 # Greatest timestamp of the output's dependencies (excluding
479 # configure's dependencies).
480 my $output_deps_greatest_timestamp;
482 # These two variables are used when generating each Makefile.in.
483 # They hold the Makefile.in until it is ready to be printed.
484 my $output_rules;
485 my $output_vars;
486 my $output_trailer;
487 my $output_all;
488 my $output_header;
490 # This is the conditional stack, updated on if/else/endif, and
491 # used to build Condition objects.
492 my @cond_stack;
494 # This holds the set of included files.
495 my @include_stack;
497 # List of dependencies for the obvious targets.
498 my @all;
499 my @check;
500 my @check_tests;
502 # Keys in this hash table are files to delete. The associated
503 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
504 my %clean_files;
506 # Keys in this hash table are object files or other files in
507 # subdirectories which need to be removed. This only holds files
508 # which are created by compilations. The value in the hash indicates
509 # when the file should be removed.
510 my %compile_clean_files;
512 # Keys in this hash table are directories where we expect to build a
513 # libtool object. We use this information to decide what directories
514 # to delete.
515 my %libtool_clean_directories;
517 # Value of `$(SOURCES)', used by tags.am.
518 my @sources;
519 # Sources which go in the distribution.
520 my @dist_sources;
522 # This hash maps object file names onto their corresponding source
523 # file names. This is used to ensure that each object is created
524 # by a single source file.
525 my %object_map;
527 # This hash maps object file names onto an integer value representing
528 # whether this object has been built via ordinary compilation or
529 # libtool compilation (the COMPILE_* constants).
530 my %object_compilation_map;
533 # This keeps track of the directories for which we've already
534 # created dirstamp code. Keys are directories, values are stamp files.
535 # Several keys can share the same stamp files if they are equivalent
536 # (as are `.//foo' and `foo').
537 my %directory_map;
539 # All .P files.
540 my %dep_files;
542 # This is a list of all targets to run during "make dist".
543 my @dist_targets;
545 # Keep track of all programs declared in this Makefile, without
546 # $(EXEEXT). @substitution@ are not listed.
547 my %known_programs;
549 # Keys in this hash are the basenames of files which must depend on
550 # ansi2knr. Values are either the empty string, or the directory in
551 # which the ANSI source file appears; the directory must have a
552 # trailing `/'.
553 my %de_ansi_files;
555 # This is the name of the redirect `all' target to use.
556 my $all_target;
558 # This keeps track of which extensions we've seen (that we care
559 # about).
560 my %extension_seen;
562 # This is random scratch space for the language finish functions.
563 # Don't randomly overwrite it; examine other uses of keys first.
564 my %language_scratch;
566 # We keep track of which objects need special (per-executable)
567 # handling on a per-language basis.
568 my %lang_specific_files;
570 # This is set when `handle_dist' has finished. Once this happens,
571 # we should no longer push on dist_common.
572 my $handle_dist_run;
574 # Used to store a set of linkers needed to generate the sources currently
575 # under consideration.
576 my %linkers_used;
578 # True if we need `LINK' defined. This is a hack.
579 my $need_link;
581 # Was get_object_extension run?
582 # FIXME: This is a hack. a better switch should be found.
583 my $get_object_extension_was_run;
585 # Record each file processed by make_paragraphs.
586 my %transformed_files;
588 # Cache each file processed by make_paragraphs.
589 # (This is different from %transformed_files because
590 # %transformed_files is reset for each file while %am_file_cache
591 # it global to the run.)
592 my %am_file_cache;
594 ################################################################
596 # var_SUFFIXES_trigger ($TYPE, $VALUE)
597 # ------------------------------------
598 # This is called by Automake::Variable::define() when SUFFIXES
599 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
600 # The work here needs to be performed as a side-effect of the
601 # macro_define() call because SUFFIXES definitions impact
602 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
603 # the input am file.
604 sub var_SUFFIXES_trigger ($$)
605 {
606 my ($type, $value) = @_;
607 accept_extensions (split (' ', $value));
608 }
609 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
611 ################################################################
613 ## --------------------------------- ##
614 ## Forward subroutine declarations. ##
615 ## --------------------------------- ##
616 sub register_language (%);
617 sub file_contents_internal ($$$%);
618 sub define_files_variable ($\@$$);
621 # &initialize_per_input ()
622 # ------------------------
623 # (Re)-Initialize per-Makefile.am variables.
624 sub initialize_per_input ()
625 {
626 reset_local_duplicates ();
628 $am_file_name = '';
629 $am_relative_dir = '';
631 $in_file_name = '';
632 $relative_dir = '';
634 $output_deps_greatest_timestamp = 0;
636 $output_rules = '';
637 $output_vars = '';
638 $output_trailer = '';
639 $output_all = '';
640 $output_header = '';
642 Automake::Options::reset;
643 Automake::Variable::reset;
644 Automake::Rule::reset;
646 @cond_stack = ();
648 @include_stack = ();
650 @all = ();
651 @check = ();
652 @check_tests = ();
654 %clean_files = ();
656 @sources = ();
657 @dist_sources = ();
659 %object_map = ();
660 %object_compilation_map = ();
662 %directory_map = ();
664 %dep_files = ();
666 @dist_targets = ();
668 %known_programs = ();
670 %de_ansi_files = ();
672 $all_target = '';
674 %extension_seen = ();
676 %language_scratch = ();
678 %lang_specific_files = ();
680 $handle_dist_run = 0;
682 $need_link = 0;
684 $get_object_extension_was_run = 0;
686 %compile_clean_files = ();
688 # We always include `.'. This isn't strictly correct.
689 %libtool_clean_directories = ('.' => 1);
691 %transformed_files = ();
692 }
695 ################################################################
697 # Initialize our list of languages that are internally supported.
699 # C.
700 register_language ('name' => 'c',
701 'Name' => 'C',
702 'config_vars' => ['CC'],
703 'ansi' => 1,
704 'autodep' => '',
705 'flags' => ['CFLAGS', 'CPPFLAGS'],
706 'compiler' => 'COMPILE',
707 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
708 'lder' => 'CCLD',
709 'ld' => '$(CC)',
710 'linker' => 'LINK',
711 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
712 'compile_flag' => '-c',
713 'libtool_tag' => 'CC',
714 'extensions' => ['.c'],
715 '_finish' => \&lang_c_finish);
717 # C++.
718 register_language ('name' => 'cxx',
719 'Name' => 'C++',
720 'config_vars' => ['CXX'],
721 'linker' => 'CXXLINK',
722 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
723 'autodep' => 'CXX',
724 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
725 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
726 'compiler' => 'CXXCOMPILE',
727 'compile_flag' => '-c',
728 'output_flag' => '-o',
729 'libtool_tag' => 'CXX',
730 'lder' => 'CXXLD',
731 'ld' => '$(CXX)',
732 'pure' => 1,
733 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
735 # Objective C.
736 register_language ('name' => 'objc',
737 'Name' => 'Objective C',
738 'config_vars' => ['OBJC'],
739 'linker' => 'OBJCLINK',
740 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
741 'autodep' => 'OBJC',
742 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
743 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
744 'compiler' => 'OBJCCOMPILE',
745 'compile_flag' => '-c',
746 'output_flag' => '-o',
747 'lder' => 'OBJCLD',
748 'ld' => '$(OBJC)',
749 'pure' => 1,
750 'extensions' => ['.m']);
752 # Unified Parallel C.
753 register_language ('name' => 'upc',
754 'Name' => 'Unified Parallel C',
755 'config_vars' => ['UPC'],
756 'linker' => 'UPCLINK',
757 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
758 'autodep' => 'UPC',
759 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
760 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
761 'compiler' => 'UPCCOMPILE',
762 'compile_flag' => '-c',
763 'output_flag' => '-o',
764 'lder' => 'UPCLD',
765 'ld' => '$(UPC)',
766 'pure' => 1,
767 'extensions' => ['.upc']);
769 # Headers.
770 register_language ('name' => 'header',
771 'Name' => 'Header',
772 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
773 '.hpp', '.inc'],
774 # No output.
775 'output_extensions' => sub { return () },
776 # Nothing to do.
777 '_finish' => sub { });
779 # Yacc (C & C++).
780 register_language ('name' => 'yacc',
781 'Name' => 'Yacc',
782 'config_vars' => ['YACC'],
783 'flags' => ['YFLAGS'],
784 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
785 'compiler' => 'YACCCOMPILE',
786 'extensions' => ['.y'],
787 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
788 return ($ext,) },
789 'rule_file' => 'yacc',
790 '_finish' => \&lang_yacc_finish,
791 '_target_hook' => \&lang_yacc_target_hook,
792 'nodist_specific' => 1);
793 register_language ('name' => 'yaccxx',
794 'Name' => 'Yacc (C++)',
795 'config_vars' => ['YACC'],
796 'rule_file' => 'yacc',
797 'flags' => ['YFLAGS'],
798 'compiler' => 'YACCCOMPILE',
799 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
800 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
801 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
802 return ($ext,) },
803 '_finish' => \&lang_yacc_finish,
804 '_target_hook' => \&lang_yacc_target_hook,
805 'nodist_specific' => 1);
807 # Lex (C & C++).
808 register_language ('name' => 'lex',
809 'Name' => 'Lex',
810 'config_vars' => ['LEX'],
811 'rule_file' => 'lex',
812 'flags' => ['LFLAGS'],
813 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
814 'compiler' => 'LEXCOMPILE',
815 'extensions' => ['.l'],
816 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
817 return ($ext,) },
818 '_finish' => \&lang_lex_finish,
819 '_target_hook' => \&lang_lex_target_hook,
820 'nodist_specific' => 1);
821 register_language ('name' => 'lexxx',
822 'Name' => 'Lex (C++)',
823 'config_vars' => ['LEX'],
824 'rule_file' => 'lex',
825 'flags' => ['LFLAGS'],
826 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
827 'compiler' => 'LEXCOMPILE',
828 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
829 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
830 return ($ext,) },
831 '_finish' => \&lang_lex_finish,
832 '_target_hook' => \&lang_lex_target_hook,
833 'nodist_specific' => 1);
835 # Assembler.
836 register_language ('name' => 'asm',
837 'Name' => 'Assembler',
838 'config_vars' => ['CCAS', 'CCASFLAGS'],
840 'flags' => ['CCASFLAGS'],
841 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
842 # or anything else required. They can also set CCAS.
843 # Or simply use Preprocessed Assembler.
844 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
845 'compiler' => 'CCASCOMPILE',
846 'compile_flag' => '-c',
847 'output_flag' => '-o',
848 'extensions' => ['.s'],
850 # With assembly we still use the C linker.
851 '_finish' => \&lang_c_finish);
853 # Preprocessed Assembler.
854 register_language ('name' => 'cppasm',
855 'Name' => 'Preprocessed Assembler',
856 'config_vars' => ['CCAS', 'CCASFLAGS'],
858 'autodep' => 'CCAS',
859 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
860 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
861 'compiler' => 'CPPASCOMPILE',
862 'compile_flag' => '-c',
863 'output_flag' => '-o',
864 'extensions' => ['.S', '.sx'],
866 # With assembly we still use the C linker.
867 '_finish' => \&lang_c_finish);
869 # Fortran 77
870 register_language ('name' => 'f77',
871 'Name' => 'Fortran 77',
872 'config_vars' => ['F77'],
873 'linker' => 'F77LINK',
874 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
875 'flags' => ['FFLAGS'],
876 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
877 'compiler' => 'F77COMPILE',
878 'compile_flag' => '-c',
879 'output_flag' => '-o',
880 'libtool_tag' => 'F77',
881 'lder' => 'F77LD',
882 'ld' => '$(F77)',
883 'pure' => 1,
884 'extensions' => ['.f', '.for']);
886 # Fortran
887 register_language ('name' => 'fc',
888 'Name' => 'Fortran',
889 'config_vars' => ['FC'],
890 'linker' => 'FCLINK',
891 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
892 'flags' => ['FCFLAGS'],
893 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
894 'compiler' => 'FCCOMPILE',
895 'compile_flag' => '-c',
896 'output_flag' => '-o',
897 'lder' => 'FCLD',
898 'ld' => '$(FC)',
899 'pure' => 1,
900 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
902 # Preprocessed Fortran
903 register_language ('name' => 'ppfc',
904 'Name' => 'Preprocessed Fortran',
905 'config_vars' => ['FC'],
906 'linker' => 'FCLINK',
907 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
908 'lder' => 'FCLD',
909 'ld' => '$(FC)',
910 'flags' => ['FCFLAGS', 'CPPFLAGS'],
911 'compiler' => 'PPFCCOMPILE',
912 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
913 'compile_flag' => '-c',
914 'output_flag' => '-o',
915 'libtool_tag' => 'FC',
916 'pure' => 1,
917 'extensions' => ['.F90','.F95', '.F03', '.F08']);
919 # Preprocessed Fortran 77
920 #
921 # The current support for preprocessing Fortran 77 just involves
922 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
923 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
924 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
925 # for `make' Version 3.76 Beta' (specifically, from info file
926 # `(make)Catalogue of Rules').
927 #
928 # A better approach would be to write an Autoconf test
929 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
930 # Fortran 77 compilers know how to do preprocessing. The Autoconf
931 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
932 # preprocessing capabilities, and then fall back on cpp (if cpp were
933 # available).
934 register_language ('name' => 'ppf77',
935 'Name' => 'Preprocessed Fortran 77',
936 'config_vars' => ['F77'],
937 'linker' => 'F77LINK',
938 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
939 'lder' => 'F77LD',
940 'ld' => '$(F77)',
941 'flags' => ['FFLAGS', 'CPPFLAGS'],
942 'compiler' => 'PPF77COMPILE',
943 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
944 'compile_flag' => '-c',
945 'output_flag' => '-o',
946 'libtool_tag' => 'F77',
947 'pure' => 1,
948 'extensions' => ['.F']);
950 # Ratfor.
951 register_language ('name' => 'ratfor',
952 'Name' => 'Ratfor',
953 'config_vars' => ['F77'],
954 'linker' => 'F77LINK',
955 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
956 'lder' => 'F77LD',
957 'ld' => '$(F77)',
958 'flags' => ['RFLAGS', 'FFLAGS'],
959 # FIXME also FFLAGS.
960 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
961 'compiler' => 'RCOMPILE',
962 'compile_flag' => '-c',
963 'output_flag' => '-o',
964 'libtool_tag' => 'F77',
965 'pure' => 1,
966 'extensions' => ['.r']);
968 # Java via gcj.
969 register_language ('name' => 'java',
970 'Name' => 'Java',
971 'config_vars' => ['GCJ'],
972 'linker' => 'GCJLINK',
973 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
974 'autodep' => 'GCJ',
975 'flags' => ['GCJFLAGS'],
976 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
977 'compiler' => 'GCJCOMPILE',
978 'compile_flag' => '-c',
979 'output_flag' => '-o',
980 'libtool_tag' => 'GCJ',
981 'lder' => 'GCJLD',
982 'ld' => '$(GCJ)',
983 'pure' => 1,
984 'extensions' => ['.java', '.class', '.zip', '.jar']);
986 ################################################################
988 # Error reporting functions.
990 # err_am ($MESSAGE, [%OPTIONS])
991 # -----------------------------
992 # Uncategorized errors about the current Makefile.am.
993 sub err_am ($;%)
994 {
995 msg_am ('error', @_);
996 }
998 # err_ac ($MESSAGE, [%OPTIONS])
999 # -----------------------------
1000 # Uncategorized errors about configure.ac.
1001 sub err_ac ($;%)
1002 {
1003 msg_ac ('error', @_);
1004 }
1006 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1007 # ---------------------------------------
1008 # Messages about about the current Makefile.am.
1009 sub msg_am ($$;%)
1010 {
1011 my ($channel, $msg, %opts) = @_;
1012 msg $channel, "${am_file}.am", $msg, %opts;
1013 }
1015 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1016 # ---------------------------------------
1017 # Messages about about configure.ac.
1018 sub msg_ac ($$;%)
1019 {
1020 my ($channel, $msg, %opts) = @_;
1021 msg $channel, $configure_ac, $msg, %opts;
1022 }
1024 ################################################################
1026 # subst ($TEXT)
1027 # -------------
1028 # Return a configure-style substitution using the indicated text.
1029 # We do this to avoid having the substitutions directly in automake.in;
1030 # when we do that they are sometimes removed and this causes confusion
1031 # and bugs.
1032 sub subst ($)
1033 {
1034 my ($text) = @_;
1035 return '@' . $text . '@';
1036 }
1038 ################################################################
1041 # $BACKPATH
1042 # &backname ($REL-DIR)
1043 # --------------------
1044 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1045 # For instance `src/foo' => `../..'.
1046 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1047 sub backname ($)
1048 {
1049 my ($file) = @_;
1050 my @res;
1051 foreach (split (/\//, $file))
1052 {
1053 next if $_ eq '.' || $_ eq '';
1054 if ($_ eq '..')
1055 {
1056 pop @res
1057 or prog_error ("trying to reverse path `$file' pointing outside tree");
1058 }
1059 else
1060 {
1061 push (@res, '..');
1062 }
1063 }
1064 return join ('/', @res) || '.';
1065 }
1067 ################################################################
1070 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1071 sub handle_options
1072 {
1073 my $var = var ('AUTOMAKE_OPTIONS');
1074 if ($var)
1075 {
1076 if ($var->has_conditional_contents)
1077 {
1078 msg_var ('unsupported', $var,
1079 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1080 }
1081 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1082 location => 1))
1083 {
1084 my ($loc, $value) = @$locvals;
1085 return 1 if (process_option_list ($loc, $value))
1086 }
1087 }
1089 if ($strictness == GNITS)
1090 {
1091 set_option ('readme-alpha', INTERNAL);
1092 set_option ('std-options', INTERNAL);
1093 set_option ('check-news', INTERNAL);
1094 }
1096 return 0;
1097 }
1099 # shadow_unconditionally ($varname, $where)
1100 # -----------------------------------------
1101 # Return a $(variable) that contains all possible values
1102 # $varname can take.
1103 # If the VAR wasn't defined conditionally, return $(VAR).
1104 # Otherwise we create a am__VAR_DIST variable which contains
1105 # all possible values, and return $(am__VAR_DIST).
1106 sub shadow_unconditionally ($$)
1107 {
1108 my ($varname, $where) = @_;
1109 my $var = var $varname;
1110 if ($var->has_conditional_contents)
1111 {
1112 $varname = "am__${varname}_DIST";
1113 my @files = uniq ($var->value_as_list_recursive);
1114 define_pretty_variable ($varname, TRUE, $where, @files);
1115 }
1116 return "\$($varname)"
1117 }
1119 # get_object_extension ($EXTENSION)
1120 # ---------------------------------
1121 # Prefix $EXTENSION with $U if ansi2knr is in use.
1122 sub get_object_extension ($)
1123 {
1124 my ($extension) = @_;
1126 # Check for automatic de-ANSI-fication.
1127 $extension = '$U' . $extension
1128 if option 'ansi2knr';
1130 $get_object_extension_was_run = 1;
1132 return $extension;
1133 }
1135 # check_user_variables (@LIST)
1136 # ----------------------------
1137 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1138 # otherwise.
1139 sub check_user_variables (@)
1140 {
1141 my @dont_override = @_;
1142 foreach my $flag (@dont_override)
1143 {
1144 my $var = var $flag;
1145 if ($var)
1146 {
1147 for my $cond ($var->conditions->conds)
1148 {
1149 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1150 {
1151 msg_cond_var ('gnu', $cond, $flag,
1152 "`$flag' is a user variable, "
1153 . "you should not override it;\n"
1154 . "use `AM_$flag' instead.");
1155 }
1156 }
1157 }
1158 }
1159 }
1161 # Call finish function for each language that was used.
1162 sub handle_languages
1163 {
1164 if (! option 'no-dependencies')
1165 {
1166 # Include auto-dep code. Don't include it if DEP_FILES would
1167 # be empty.
1168 if (&saw_sources_p (0) && keys %dep_files)
1169 {
1170 # Set location of depcomp.
1171 &define_variable ('depcomp',
1172 "\$(SHELL) $am_config_aux_dir/depcomp",
1173 INTERNAL);
1174 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1176 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1178 my @deplist = sort keys %dep_files;
1179 # Generate each `include' individually. Irix 6 make will
1180 # not properly include several files resulting from a
1181 # variable expansion; generating many separate includes
1182 # seems safest.
1183 $output_rules .= "\n";
1184 foreach my $iter (@deplist)
1185 {
1186 $output_rules .= (subst ('AMDEP_TRUE')
1187 . subst ('am__include')
1188 . ' '
1189 . subst ('am__quote')
1190 . $iter
1191 . subst ('am__quote')
1192 . "\n");
1193 }
1195 # Compute the set of directories to remove in distclean-depend.
1196 my @depdirs = uniq (map { dirname ($_) } @deplist);
1197 $output_rules .= &file_contents ('depend',
1198 new Automake::Location,
1199 DEPDIRS => "@depdirs");
1200 }
1201 }
1202 else
1203 {
1204 &define_variable ('depcomp', '', INTERNAL);
1205 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1206 }
1208 my %done;
1210 # Is the c linker needed?
1211 my $needs_c = 0;
1212 foreach my $ext (sort keys %extension_seen)
1213 {
1214 next unless $extension_map{$ext};
1216 my $lang = $languages{$extension_map{$ext}};
1218 my $rule_file = $lang->rule_file || 'depend2';
1220 # Get information on $LANG.
1221 my $pfx = $lang->autodep;
1222 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1224 my ($AMDEP, $FASTDEP) =
1225 (option 'no-dependencies' || $lang->autodep eq 'no')
1226 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1228 my %transform = ('EXT' => $ext,
1229 'PFX' => $pfx,
1230 'FPFX' => $fpfx,
1231 'AMDEP' => $AMDEP,
1232 'FASTDEP' => $FASTDEP,
1233 '-c' => $lang->compile_flag || '',
1234 # These are not used, but they need to be defined
1235 # so &transform do not complain.
1236 SUBDIROBJ => 0,
1237 'DERIVED-EXT' => 'BUG',
1238 DIST_SOURCE => 1,
1239 );
1241 # Generate the appropriate rules for this extension.
1242 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1243 || defined $lang->compile)
1244 {
1245 # Some C compilers don't support -c -o. Use it only if really
1246 # needed.
1247 my $output_flag = $lang->output_flag || '';
1248 $output_flag = '-o'
1249 if (! $output_flag
1250 && $lang->name eq 'c'
1251 && option 'subdir-objects');
1253 # Compute a possible derived extension.
1254 # This is not used by depend2.am.
1255 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1257 # When we output an inference rule like `.c.o:' we
1258 # have two cases to consider: either subdir-objects
1259 # is used, or it is not.
1260 #
1261 # In the latter case the rule is used to build objects
1262 # in the current directory, and dependencies always
1263 # go into `./$(DEPDIR)/'. We can hard-code this value.
1264 #
1265 # In the former case the rule can be used to build
1266 # objects in sub-directories too. Dependencies should
1267 # go into the appropriate sub-directories, e.g.,
1268 # `sub/$(DEPDIR)/'. The value of this directory
1269 # needs to be computed on-the-fly.
1270 #
1271 # DEPBASE holds the name of this directory, plus the
1272 # basename part of the object file (extensions Po, TPo,
1273 # Plo, TPlo will be added later as appropriate). It is
1274 # either hardcoded, or a shell variable (`$depbase') that
1275 # will be computed by the rule.
1276 my $depbase =
1277 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1278 $output_rules .=
1279 file_contents ($rule_file,
1280 new Automake::Location,
1281 %transform,
1282 GENERIC => 1,
1284 'DERIVED-EXT' => $der_ext,
1286 DEPBASE => $depbase,
1287 BASE => '$*',
1288 SOURCE => '$<',
1289 SOURCEFLAG => $sourceflags{$ext} || '',
1290 OBJ => '$@',
1291 OBJOBJ => '$@',
1292 LTOBJ => '$@',
1294 COMPILE => '$(' . $lang->compiler . ')',
1295 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1296 -o => $output_flag,
1297 SUBDIROBJ => !! option 'subdir-objects');
1298 }
1300 # Now include code for each specially handled object with this
1301 # language.
1302 my %seen_files = ();
1303 foreach my $file (@{$lang_specific_files{$lang->name}})
1304 {
1305 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1307 # We might see a given object twice, for instance if it is
1308 # used under different conditions.
1309 next if defined $seen_files{$obj};
1310 $seen_files{$obj} = 1;
1312 prog_error ("found " . $lang->name .
1313 " in handle_languages, but compiler not defined")
1314 unless defined $lang->compile;
1316 my $obj_compile = $lang->compile;
1318 # Rewrite each occurrence of `AM_$flag' in the compile
1319 # rule into `${derived}_$flag' if it exists.
1320 for my $flag (@{$lang->flags})
1321 {
1322 my $val = "${derived}_$flag";
1323 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1324 if set_seen ($val);
1325 }
1327 my $libtool_tag = '';
1328 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1329 {
1330 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1331 }
1333 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1334 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1336 my $obj_ltcompile =
1337 "\$(LIBTOOL) $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1338 . "--mode=compile $obj_compile";
1340 # We _need_ `-o' for per object rules.
1341 my $output_flag = $lang->output_flag || '-o';
1343 my $depbase = dirname ($obj);
1344 $depbase = ''
1345 if $depbase eq '.';
1346 $depbase .= '/'
1347 unless $depbase eq '';
1348 $depbase .= '$(DEPDIR)/' . basename ($obj);
1350 # Support for deansified files in subdirectories is ugly
1351 # enough to deserve an explanation.
1352 #
1353 # A Note about normal ansi2knr processing first. On
1354 #
1355 # AUTOMAKE_OPTIONS = ansi2knr
1356 # bin_PROGRAMS = foo
1357 # foo_SOURCES = foo.c
1358 #
1359 # we generate rules similar to:
1360 #
1361 # foo: foo$U.o; link ...
1362 # foo$U.o: foo$U.c; compile ...
1363 # foo_.c: foo.c; ansi2knr ...
1364 #
1365 # this is fairly compact, and will call ansi2knr depending
1366 # on the value of $U (`' or `_').
1367 #
1368 # It's harder with subdir sources. On
1369 #
1370 # AUTOMAKE_OPTIONS = ansi2knr
1371 # bin_PROGRAMS = foo
1372 # foo_SOURCES = sub/foo.c
1373 #
1374 # we have to create foo_.c in the current directory.
1375 # (Unless the user asks 'subdir-objects'.) This is important
1376 # in case the same file (`foo.c') is compiled from other
1377 # directories with different cpp options: foo_.c would
1378 # be preprocessed for only one set of options if it were
1379 # put in the subdirectory.
1380 #
1381 # Because foo$U.o must be built from either foo_.c or
1382 # sub/foo.c we can't be as concise as in the first example.
1383 # Instead we output
1384 #
1385 # foo: foo$U.o; link ...
1386 # foo_.o: foo_.c; compile ...
1387 # foo.o: sub/foo.c; compile ...
1388 # foo_.c: foo.c; ansi2knr ...
1389 #
1390 # This is why we'll now transform $rule_file twice
1391 # if we detect this case.
1392 # A first time we output the compile rule with `$U'
1393 # replaced by `_' and the source directory removed,
1394 # and another time we simply remove `$U'.
1395 #
1396 # Note that at this point $source (as computed by
1397 # &handle_single_transform) is `sub/foo$U.c'.
1398 # This can be confusing: it can be used as-is when
1399 # subdir-objects is set, otherwise you have to know
1400 # it really means `foo_.c' or `sub/foo.c'.
1401 my $objdir = dirname ($obj);
1402 my $srcdir = dirname ($source);
1403 if ($lang->ansi && $obj =~ /\$U/)
1404 {
1405 prog_error "`$obj' contains \$U, but `$source' doesn't."
1406 if $source !~ /\$U/;
1408 (my $source_ = $source) =~ s/\$U/_/g;
1409 # Output an additional rule if _.c and .c are not in
1410 # the same directory. (_.c is always in $objdir.)
1411 if ($objdir ne $srcdir)
1412 {
1413 (my $obj_ = $obj) =~ s/\$U/_/g;
1414 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1415 $source_ = basename ($source_);
1417 $output_rules .=
1418 file_contents ($rule_file,
1419 new Automake::Location,
1420 %transform,
1421 GENERIC => 0,
1423 DEPBASE => $depbase_,
1424 BASE => $obj_,
1425 SOURCE => $source_,
1426 SOURCEFLAG => $sourceflags{$srcext} || '',
1427 OBJ => "$obj_$myext",
1428 OBJOBJ => "$obj_.obj",
1429 LTOBJ => "$obj_.lo",
1431 COMPILE => $obj_compile,
1432 LTCOMPILE => $obj_ltcompile,
1433 -o => $output_flag,
1434 %file_transform);
1435 $obj =~ s/\$U//g;
1436 $depbase =~ s/\$U//g;
1437 $source =~ s/\$U//g;
1438 }
1439 }
1441 $output_rules .=
1442 file_contents ($rule_file,
1443 new Automake::Location,
1444 %transform,
1445 GENERIC => 0,
1447 DEPBASE => $depbase,
1448 BASE => $obj,
1449 SOURCE => $source,
1450 SOURCEFLAG => $sourceflags{$srcext} || '',
1451 # Use $myext and not `.o' here, in case
1452 # we are actually building a new source
1453 # file -- e.g. via yacc.
1454 OBJ => "$obj$myext",
1455 OBJOBJ => "$obj.obj",
1456 LTOBJ => "$obj.lo",
1458 COMPILE => $obj_compile,
1459 LTCOMPILE => $obj_ltcompile,
1460 -o => $output_flag,
1461 %file_transform);
1462 }
1464 # The rest of the loop is done once per language.
1465 next if defined $done{$lang};
1466 $done{$lang} = 1;
1468 # Load the language dependent Makefile chunks.
1469 my %lang = map { uc ($_) => 0 } keys %languages;
1470 $lang{uc ($lang->name)} = 1;
1471 $output_rules .= file_contents ('lang-compile',
1472 new Automake::Location,
1473 %transform, %lang);
1475 # If the source to a program consists entirely of code from a
1476 # `pure' language, for instance C++ or Fortran 77, then we
1477 # don't need the C compiler code. However if we run into
1478 # something unusual then we do generate the C code. There are
1479 # probably corner cases here that do not work properly.
1480 # People linking Java code to Fortran code deserve pain.
1481 $needs_c ||= ! $lang->pure;
1483 define_compiler_variable ($lang)
1484 if ($lang->compile);
1486 define_linker_variable ($lang)
1487 if ($lang->link);
1489 require_variables ("$am_file.am", $lang->Name . " source seen",
1490 TRUE, @{$lang->config_vars});
1492 # Call the finisher.
1493 $lang->finish;
1495 # Flags listed in `->flags' are user variables (per GNU Standards),
1496 # they should not be overridden in the Makefile...
1497 my @dont_override = @{$lang->flags};
1498 # ... and so is LDFLAGS.
1499 push @dont_override, 'LDFLAGS' if $lang->link;
1501 check_user_variables @dont_override;
1502 }
1504 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1505 # suffix rule was learned), don't bother with the C stuff. But if
1506 # anything else creeps in, then use it.
1507 $needs_c = 1
1508 if $need_link || suffix_rules_count > 1;
1510 if ($needs_c)
1511 {
1512 &define_compiler_variable ($languages{'c'})
1513 unless defined $done{$languages{'c'}};
1514 define_linker_variable ($languages{'c'});
1515 }
1516 }
1519 # append_exeext { PREDICATE } $MACRO
1520 # ----------------------------------
1521 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1522 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1523 # ignored.
1524 #
1525 # This is typically used on all filenames of *_PROGRAMS, and filenames
1526 # of TESTS that are programs.
1527 sub append_exeext (&$)
1528 {
1529 my ($pred, $macro) = @_;
1531 transform_variable_recursively
1532 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1533 sub {
1534 my ($subvar, $val, $cond, $full_cond) = @_;
1535 # Append $(EXEEXT) unless the user did it already, or it's a
1536 # @substitution@.
1537 $val .= '$(EXEEXT)'
1538 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1539 return $val;
1540 });
1541 }
1544 # Check to make sure a source defined in LIBOBJS is not explicitly
1545 # mentioned. This is a separate function (as opposed to being inlined
1546 # in handle_source_transform) because it isn't always appropriate to
1547 # do this check.
1548 sub check_libobjs_sources
1549 {
1550 my ($one_file, $unxformed) = @_;
1552 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1553 'dist_EXTRA_', 'nodist_EXTRA_')
1554 {
1555 my @files;
1556 my $varname = $prefix . $one_file . '_SOURCES';
1557 my $var = var ($varname);
1558 if ($var)
1559 {
1560 @files = $var->value_as_list_recursive;
1561 }
1562 elsif ($prefix eq '')
1563 {
1564 @files = ($unxformed . '.c');
1565 }
1566 else
1567 {
1568 next;
1569 }
1571 foreach my $file (@files)
1572 {
1573 err_var ($prefix . $one_file . '_SOURCES',
1574 "automatically discovered file `$file' should not" .
1575 " be explicitly mentioned")
1576 if defined $libsources{$file};
1577 }
1578 }
1579 }
1582 # @OBJECTS
1583 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1584 # -----------------------------------------------------------------------------
1585 # Does much of the actual work for handle_source_transform.
1586 # Arguments are:
1587 # $VAR is the name of the variable that the source filenames come from
1588 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1589 # $DERIVED is the name of resulting executable or library
1590 # $OBJ is the object extension (e.g., `$U.lo')
1591 # $FILE the source file to transform
1592 # %TRANSFORM contains extras arguments to pass to file_contents
1593 # when producing explicit rules
1594 # Result is a list of the names of objects
1595 # %linkers_used will be updated with any linkers needed
1596 sub handle_single_transform ($$$$$%)
1597 {
1598 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1599 my @files = ($_file);
1600 my @result = ();
1601 my $nonansi_obj = $obj;
1602 $nonansi_obj =~ s/\$U//g;
1604 # Turn sources into objects. We use a while loop like this
1605 # because we might add to @files in the loop.
1606 while (scalar @files > 0)
1607 {
1608 $_ = shift @files;
1610 # Configure substitutions in _SOURCES variables are errors.
1611 if (/^\@.*\@$/)
1612 {
1613 my $parent_msg = '';
1614 $parent_msg = "\nand is referred to from `$topparent'"
1615 if $topparent ne $var->name;
1616 err_var ($var,
1617 "`" . $var->name . "' includes configure substitution `$_'"
1618 . $parent_msg . ";\nconfigure " .
1619 "substitutions are not allowed in _SOURCES variables");
1620 next;
1621 }
1623 # If the source file is in a subdirectory then the `.o' is put
1624 # into the current directory, unless the subdir-objects option
1625 # is in effect.
1627 # Split file name into base and extension.
1628 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1629 my $full = $_;
1630 my $directory = $1 || '';
1631 my $base = $2;
1632 my $extension = $3;
1634 # We must generate a rule for the object if it requires its own flags.
1635 my $renamed = 0;
1636 my ($linker, $object);
1638 # This records whether we've seen a derived source file (e.g.
1639 # yacc output).
1640 my $derived_source = 0;
1642 # This holds the `aggregate context' of the file we are
1643 # currently examining. If the file is compiled with
1644 # per-object flags, then it will be the name of the object.
1645 # Otherwise it will be `AM'. This is used by the target hook
1646 # language function.
1647 my $aggregate = 'AM';
1649 $extension = &derive_suffix ($extension, $nonansi_obj);
1650 my $lang;
1651 if ($extension_map{$extension} &&
1652 ($lang = $languages{$extension_map{$extension}}))
1653 {
1654 # Found the language, so see what it says.
1655 &saw_extension ($extension);
1657 # Do we have per-executable flags for this executable?
1658 my $have_per_exec_flags = 0;
1659 my @peflags = @{$lang->flags};
1660 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1661 foreach my $flag (@peflags)
1662 {
1663 if (set_seen ("${derived}_$flag"))
1664 {
1665 $have_per_exec_flags = 1;
1666 last;
1667 }
1668 }
1670 # Note: computed subr call. The language rewrite function
1671 # should return one of the LANG_* constants. It could
1672 # also return a list whose first value is such a constant
1673 # and whose second value is a new source extension which
1674 # should be applied. This means this particular language
1675 # generates another source file which we must then process
1676 # further.
1677 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1678 my ($r, $source_extension)
1679 = &$subr ($directory, $base, $extension,
1680 $nonansi_obj, $have_per_exec_flags, $var);
1681 # Skip this entry if we were asked not to process it.
1682 next if $r == LANG_IGNORE;
1684 # Now extract linker and other info.
1685 $linker = $lang->linker;
1687 my $this_obj_ext;
1688 if (defined $source_extension)
1689 {
1690 $this_obj_ext = $source_extension;
1691 $derived_source = 1;
1692 }
1693 elsif ($lang->ansi)
1694 {
1695 $this_obj_ext = $obj;
1696 }
1697 else
1698 {
1699 $this_obj_ext = $nonansi_obj;
1700 }
1701 $object = $base . $this_obj_ext;
1703 if ($have_per_exec_flags)
1704 {
1705 # We have a per-executable flag in effect for this
1706 # object. In this case we rewrite the object's
1707 # name to ensure it is unique.
1709 # We choose the name `DERIVED_OBJECT' to ensure
1710 # (1) uniqueness, and (2) continuity between
1711 # invocations. However, this will result in a
1712 # name that is too long for losing systems, in
1713 # some situations. So we provide _SHORTNAME to
1714 # override.
1716 my $dname = $derived;
1717 my $var = var ($derived . '_SHORTNAME');
1718 if ($var)
1719 {
1720 # FIXME: should use the same Condition as
1721 # the _SOURCES variable. But this is really
1722 # silly overkill -- nobody should have
1723 # conditional shortnames.
1724 $dname = $var->variable_value;
1725 }
1726 $object = $dname . '-' . $object;
1728 prog_error ($lang->name . " flags defined without compiler")
1729 if ! defined $lang->compile;
1731 $renamed = 1;
1732 }
1734 # If rewrite said it was ok, put the object into a
1735 # subdir.
1736 if ($r == LANG_SUBDIR && $directory ne '')
1737 {
1738 $object = $directory . '/' . $object;
1739 }
1741 # If the object file has been renamed (because per-target
1742 # flags are used) we cannot compile the file with an
1743 # inference rule: we need an explicit rule.
1744 #
1745 # If the source is in a subdirectory and the object is in
1746 # the current directory, we also need an explicit rule.
1747 #
1748 # If both source and object files are in a subdirectory
1749 # (this happens when the subdir-objects option is used),
1750 # then the inference will work.
1751 #
1752 # The latter case deserves a historical note. When the
1753 # subdir-objects option was added on 1999-04-11 it was
1754 # thought that inferences rules would work for
1755 # subdirectory objects too. Later, on 1999-11-22,
1756 # automake was changed to output explicit rules even for
1757 # subdir-objects. Nobody remembers why, but this occurred
1758 # soon after the merge of the user-dep-gen-branch so it
1759 # might be related. In late 2003 people complained about
1760 # the size of the generated Makefile.ins (libgcj, with
1761 # 2200+ subdir objects was reported to have a 9MB
1762 # Makefile), so we now rely on inference rules again.
1763 # Maybe we'll run across the same issue as in the past,
1764 # but at least this time we can document it. However since
1765 # dependency tracking has evolved it is possible that
1766 # our old problem no longer exists.
1767 # Using inference rules for subdir-objects has been tested
1768 # with GNU make, Solaris make, Ultrix make, BSD make,
1769 # HP-UX make, and OSF1 make successfully.
1770 if ($renamed
1771 || ($directory ne '' && ! option 'subdir-objects')
1772 # We must also use specific rules for a nodist_ source
1773 # if its language requests it.
1774 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1775 {
1776 my $obj_sans_ext = substr ($object, 0,
1777 - length ($this_obj_ext));
1778 my $full_ansi = $full;
1779 if ($lang->ansi && option 'ansi2knr')
1780 {
1781 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1782 $obj_sans_ext .= '$U';
1783 }
1785 my @specifics = ($full_ansi, $obj_sans_ext,
1786 # Only use $this_obj_ext in the derived
1787 # source case because in the other case we
1788 # *don't* want $(OBJEXT) to appear here.
1789 ($derived_source ? $this_obj_ext : '.o'),
1790 $extension);
1792 # If we renamed the object then we want to use the
1793 # per-executable flag name. But if this is simply a
1794 # subdir build then we still want to use the AM_ flag
1795 # name.
1796 if ($renamed)
1797 {
1798 unshift @specifics, $derived;
1799 $aggregate = $derived;
1800 }
1801 else
1802 {
1803 unshift @specifics, 'AM';
1804 }
1806 # Each item on this list is a reference to a list consisting
1807 # of four values followed by additional transform flags for
1808 # file_contents. The four values are the derived flag prefix
1809 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1810 # source file, the base name of the output file, and
1811 # the extension for the object file.
1812 push (@{$lang_specific_files{$lang->name}},
1813 [@specifics, %transform]);
1814 }
1815 }
1816 elsif ($extension eq $nonansi_obj)
1817 {
1818 # This is probably the result of a direct suffix rule.
1819 # In this case we just accept the rewrite.
1820 $object = "$base$extension";
1821 $object = "$directory/$object" if $directory ne '';
1822 $linker = '';
1823 }
1824 else
1825 {
1826 # No error message here. Used to have one, but it was
1827 # very unpopular.
1828 # FIXME: we could potentially do more processing here,
1829 # perhaps treating the new extension as though it were a
1830 # new source extension (as above). This would require
1831 # more restructuring than is appropriate right now.
1832 next;
1833 }
1835 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1836 if (defined $object_map{$object}
1837 && $object_map{$object} ne $full);
1839 my $comp_val = (($object =~ /\.lo$/)
1840 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1841 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1842 if (defined $object_compilation_map{$comp_obj}
1843 && $object_compilation_map{$comp_obj} != 0
1844 # Only see the error once.
1845 && ($object_compilation_map{$comp_obj}
1846 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1847 && $object_compilation_map{$comp_obj} != $comp_val)
1848 {
1849 err_am "object `$comp_obj' created both with libtool and without";
1850 }
1851 $object_compilation_map{$comp_obj} |= $comp_val;
1853 if (defined $lang)
1854 {
1855 # Let the language do some special magic if required.
1856 $lang->target_hook ($aggregate, $object, $full, %transform);
1857 }
1859 if ($derived_source)
1860 {
1861 prog_error ($lang->name . " has automatic dependency tracking")
1862 if $lang->autodep ne 'no';
1863 # Make sure this new source file is handled next. That will
1864 # make it appear to be at the right place in the list.
1865 unshift (@files, $object);
1866 # Distribute derived sources unless the source they are
1867 # derived from is not.
1868 &push_dist_common ($object)
1869 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1870 next;
1871 }
1873 $linkers_used{$linker} = 1;
1875 push (@result, $object);
1877 if (! defined $object_map{$object})
1878 {
1879 my @dep_list = ();
1880 $object_map{$object} = $full;
1882 # If resulting object is in subdir, we need to make
1883 # sure the subdir exists at build time.
1884 if ($object =~ /\//)
1885 {
1886 # FIXME: check that $DIRECTORY is somewhere in the
1887 # project
1889 # For Java, the way we're handling it right now, a
1890 # `..' component doesn't make sense.
1891 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1892 {
1893 err_am "`$full' should not contain a `..' component";
1894 }
1896 # Make sure object is removed by `make mostlyclean'.
1897 $compile_clean_files{$object} = MOSTLY_CLEAN;
1898 # If we have a libtool object then we also must remove
1899 # the ordinary .o.
1900 if ($object =~ /\.lo$/)
1901 {
1902 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1903 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1905 # Remove any libtool object in this directory.
1906 $libtool_clean_directories{$directory} = 1;
1907 }
1909 push (@dep_list, require_build_directory ($directory));
1911 # If we're generating dependencies, we also want
1912 # to make sure that the appropriate subdir of the
1913 # .deps directory is created.
1914 push (@dep_list,
1915 require_build_directory ($directory . '/$(DEPDIR)'))
1916 unless option 'no-dependencies';
1917 }
1919 &pretty_print_rule ($object . ':', "\t", @dep_list)
1920 if scalar @dep_list > 0;
1921 }
1923 # Transform .o or $o file into .P file (for automatic
1924 # dependency code).
1925 if ($lang && $lang->autodep ne 'no')
1926 {
1927 my $depfile = $object;
1928 $depfile =~ s/\.([^.]*)$/.P$1/;
1929 $depfile =~ s/\$\(OBJEXT\)$/o/;
1930 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1931 . basename ($depfile)} = 1;
1932 }
1933 }
1935 return @result;
1936 }
1939 # $LINKER
1940 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1941 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1942 # ---------------------------------------------------------------------------
1943 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1944 #
1945 # Arguments are:
1946 # $VAR is the name of the _SOURCES variable
1947 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1948 # it will be generated and returned).
1949 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1950 # work done to determine the linker will be).
1951 # $ONE_FILE is the canonical (transformed) name of object to build
1952 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1953 # $TOPPARENT is the _SOURCES variable being processed.
1954 # $WHERE context into which this definition is done
1955 # %TRANSFORM extra arguments to pass to file_contents when producing
1956 # rules
1957 #
1958 # Result is a pair ($LINKER, $OBJVAR):
1959 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1960 sub define_objects_from_sources ($$$$$$$%)
1961 {
1962 my ($var, $objvar, $nodefine, $one_file,
1963 $obj, $topparent, $where, %transform) = @_;
1965 my $needlinker = "";
1967 transform_variable_recursively
1968 ($var, $objvar, 'am__objects', $nodefine, $where,
1969 # The transform code to run on each filename.
1970 sub {
1971 my ($subvar, $val, $cond, $full_cond) = @_;
1972 my @trans = handle_single_transform ($subvar, $topparent,
1973 $one_file, $obj, $val,
1974 %transform);
1975 $needlinker = "true" if @trans;
1976 return @trans;
1977 });
1979 return $needlinker;
1980 }
1983 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1984 # -----------------------------------------------------------------------------
1985 # Handle SOURCE->OBJECT transform for one program or library.
1986 # Arguments are:
1987 # canonical (transformed) name of target to build
1988 # actual target of object to build
1989 # object extension (i.e., either `.o' or `$o')
1990 # location of the source variable
1991 # extra arguments to pass to file_contents when producing rules
1992 # Return the name of the linker variable that must be used.
1993 # Empty return means just use `LINK'.
1994 sub handle_source_transform ($$$$%)
1995 {
1996 # one_file is canonical name. unxformed is given name. obj is
1997 # object extension.
1998 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2000 my $linker = '';
2002 # No point in continuing if _OBJECTS is defined.
2003 return if reject_var ($one_file . '_OBJECTS',
2004 $one_file . '_OBJECTS should not be defined');
2006 my %used_pfx = ();
2007 my $needlinker;
2008 %linkers_used = ();
2009 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2010 'dist_EXTRA_', 'nodist_EXTRA_')
2011 {
2012 my $varname = $prefix . $one_file . "_SOURCES";
2013 my $var = var $varname;
2014 next unless $var;
2016 # We are going to define _OBJECTS variables using the prefix.
2017 # Then we glom them all together. So we can't use the null
2018 # prefix here as we need it later.
2019 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2021 # Keep track of which prefixes we saw.
2022 $used_pfx{$xpfx} = 1
2023 unless $prefix =~ /EXTRA_/;
2025 push @sources, "\$($varname)";
2026 push @dist_sources, shadow_unconditionally ($varname, $where)
2027 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2029 $needlinker |=
2030 define_objects_from_sources ($varname,
2031 $xpfx . $one_file . '_OBJECTS',
2032 $prefix =~ /EXTRA_/,
2033 $one_file, $obj, $varname, $where,
2034 DIST_SOURCE => ($prefix !~ /^nodist_/),
2035 %transform);
2036 }
2037 if ($needlinker)
2038 {
2039 $linker ||= &resolve_linker (%linkers_used);
2040 }
2042 my @keys = sort keys %used_pfx;
2043 if (scalar @keys == 0)
2044 {
2045 # The default source for libfoo.la is libfoo.c, but for
2046 # backward compatibility we first look at libfoo_la.c
2047 my $old_default_source = "$one_file.c";
2048 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
2049 if ($old_default_source ne $default_source
2050 && (rule $old_default_source
2051 || rule '$(srcdir)/' . $old_default_source
2052 || rule '${srcdir}/' . $old_default_source
2053 || -f $old_default_source))
2054 {
2055 my $loc = $where->clone;
2056 $loc->pop_context;
2057 msg ('obsolete', $loc,
2058 "the default source for `$unxformed' has been changed "
2059 . "to `$default_source'.\n(Using `$old_default_source' for "
2060 . "backward compatibility.)");
2061 $default_source = $old_default_source;
2062 }
2063 # If a rule exists to build this source with a $(srcdir)
2064 # prefix, use that prefix in our variables too. This is for
2065 # the sake of BSD Make.
2066 if (rule '$(srcdir)/' . $default_source
2067 || rule '${srcdir}/' . $default_source)
2068 {
2069 $default_source = '$(srcdir)/' . $default_source;
2070 }
2072 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2073 push (@sources, $default_source);
2074 push (@dist_sources, $default_source);
2076 %linkers_used = ();
2077 my (@result) =
2078 handle_single_transform ($one_file . '_SOURCES',
2079 $one_file . '_SOURCES',
2080 $one_file, $obj,
2081 $default_source, %transform);
2082 $linker ||= &resolve_linker (%linkers_used);
2083 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2084 }
2085 else
2086 {
2087 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2088 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2089 }
2091 # If we want to use `LINK' we must make sure it is defined.
2092 if ($linker eq '')
2093 {
2094 $need_link = 1;
2095 }
2097 return $linker;
2098 }
2101 # handle_lib_objects ($XNAME, $VAR)
2102 # ---------------------------------
2103 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2104 # Also, generate _DEPENDENCIES variable if appropriate.
2105 # Arguments are:
2106 # transformed name of object being built, or empty string if no object
2107 # name of _LDADD/_LIBADD-type variable to examine
2108 # Returns 1 if LIBOBJS seen, 0 otherwise.
2109 sub handle_lib_objects
2110 {
2111 my ($xname, $varname) = @_;
2113 my $var = var ($varname);
2114 prog_error "handle_lib_objects: `$varname' undefined"
2115 unless $var;
2116 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2117 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2118 my $prefix = $1 || 'AM_';
2120 my $seen_libobjs = 0;
2121 my $flagvar = 0;
2123 transform_variable_recursively
2124 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2125 ! $xname, INTERNAL,
2126 # Transformation function, run on each filename.
2127 sub {
2128 my ($subvar, $val, $cond, $full_cond) = @_;
2130 if ($val =~ /^-/)
2131 {
2132 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2133 if ($val !~ /^-[lL]/ &&
2134 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2135 # for Libtool libraries or programs. (Actually we are a bit
2136 # laxe here since this code also applies to non-libtool
2137 # libraries or programs, for which -dlopen and -dlopreopen
2138 # are pure nonsense. Diagnosing this doesn't seem very
2139 # important: the developer will quickly get complaints from
2140 # the linker.)
2141 $val !~ /^-dl(?:pre)?open$/ &&
2142 # Only get this error once.
2143 ! $flagvar)
2144 {
2145 $flagvar = 1;
2146 # FIXME: should display a stack of nested variables
2147 # as context when $var != $subvar.
2148 err_var ($var, "linker flags such as `$val' belong in "
2149 . "`${prefix}LDFLAGS");
2150 }
2151 return ();
2152 }
2153 elsif ($val !~ /^\@.*\@$/)
2154 {
2155 # Assume we have a file of some sort, and output it into the
2156 # dependency variable. Autoconf substitutions are not output;
2157 # rarely is a new dependency substituted into e.g. foo_LDADD
2158 # -- but bad things (e.g. -lX11) are routinely substituted.
2159 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2160 # and handled specially below.
2161 return $val;
2162 }
2163 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2164 {
2165 handle_LIBOBJS ($subvar, $cond, $1);
2166 $seen_libobjs = 1;
2167 return $val;
2168 }
2169 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2170 {
2171 handle_ALLOCA ($subvar, $cond, $1);
2172 return $val;
2173 }
2174 else
2175 {
2176 return ();
2177 }
2178 });
2180 return $seen_libobjs;
2181 }
2183 # handle_LIBOBJS_or_ALLOCA ($VAR)
2184 # -------------------------------
2185 # Definitions common to LIBOBJS and ALLOCA.
2186 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2187 sub handle_LIBOBJS_or_ALLOCA ($)
2188 {
2189 my ($var) = @_;
2191 my $dir = '';
2193 # If LIBOBJS files must be built in another directory we have
2194 # to define LIBOBJDIR and ensure the files get cleaned.
2195 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2196 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2197 if ($config_libobj_dir
2198 && $relative_dir ne $config_libobj_dir)
2199 {
2200 if (option 'subdir-objects')
2201 {
2202 # In the top-level Makefile we do not use $(top_builddir), because
2203 # we are already there, and since the targets are built without
2204 # a $(top_builddir), it helps BSD Make to match them with
2205 # dependencies.
2206 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2207 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2208 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2209 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2210 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2211 # be created by libtool as a side-effect of creating LTLIBOBJS).
2212 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2213 }
2214 else
2215 {
2216 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2217 . " `subdir-objects' is not set");
2218 }
2219 }
2221 return $dir;
2222 }
2224 sub handle_LIBOBJS ($$$)
2225 {
2226 my ($var, $cond, $lt) = @_;
2227 my $myobjext = $lt ? 'lo' : 'o';
2228 $lt ||= '';
2230 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2231 if ! keys %libsources;
2233 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2235 foreach my $iter (keys %libsources)
2236 {
2237 if ($iter =~ /\.[cly]$/)
2238 {
2239 &saw_extension ($&);
2240 &saw_extension ('.c');
2241 }
2243 if ($iter =~ /\.h$/)
2244 {
2245 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2246 }
2247 elsif ($iter ne 'alloca.c')
2248 {
2249 my $rewrite = $iter;
2250 $rewrite =~ s/\.c$/.P$myobjext/;
2251 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2252 $rewrite = "^" . quotemeta ($iter) . "\$";
2253 # Only require the file if it is not a built source.
2254 my $bs = var ('BUILT_SOURCES');
2255 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2256 {
2257 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2258 }
2259 }
2260 }
2261 }
2263 sub handle_ALLOCA ($$$)
2264 {
2265 my ($var, $cond, $lt) = @_;
2266 my $myobjext = $lt ? 'lo' : 'o';
2267 $lt ||= '';
2268 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2270 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2271 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2272 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2273 &saw_extension ('.c');
2274 }
2276 # Canonicalize the input parameter
2277 sub canonicalize
2278 {
2279 my ($string) = @_;
2280 $string =~ tr/A-Za-z0-9_\@/_/c;
2281 return $string;
2282 }
2284 # Canonicalize a name, and check to make sure the non-canonical name
2285 # is never used. Returns canonical name. Arguments are name and a
2286 # list of suffixes to check for.
2287 sub check_canonical_spelling
2288 {
2289 my ($name, @suffixes) = @_;
2291 my $xname = &canonicalize ($name);
2292 if ($xname ne $name)
2293 {
2294 foreach my $xt (@suffixes)
2295 {
2296 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2297 }
2298 }
2300 return $xname;
2301 }
2304 # handle_compile ()
2305 # -----------------
2306 # Set up the compile suite.
2307 sub handle_compile ()
2308 {
2309 return
2310 unless $get_object_extension_was_run;
2312 # Boilerplate.
2313 my $default_includes = '';
2314 if (! option 'nostdinc')
2315 {
2316 my @incs = ('-I.', subst ('am__isrc'));
2318 my $var = var 'CONFIG_HEADER';
2319 if ($var)
2320 {
2321 foreach my $hdr (split (' ', $var->variable_value))
2322 {
2323 push @incs, '-I' . dirname ($hdr);
2324 }
2325 }
2326 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2327 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2328 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2329 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2330 # to just put @am__isrc@ right after `-I.', without a space.
2331 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2332 }
2334 my (@mostly_rms, @dist_rms);
2335 foreach my $item (sort keys %compile_clean_files)
2336 {
2337 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2338 {
2339 push (@mostly_rms, "\t-rm -f $item");
2340 }
2341 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2342 {
2343 push (@dist_rms, "\t-rm -f $item");
2344 }
2345 else
2346 {
2347 prog_error 'invalid entry in %compile_clean_files';
2348 }
2349 }
2351 my ($coms, $vars, $rules) =
2352 &file_contents_internal (1, "$libdir/am/compile.am",
2353 new Automake::Location,
2354 ('DEFAULT_INCLUDES' => $default_includes,
2355 'MOSTLYRMS' => join ("\n", @mostly_rms),
2356 'DISTRMS' => join ("\n", @dist_rms)));
2357 $output_vars .= $vars;
2358 $output_rules .= "$coms$rules";
2360 # Check for automatic de-ANSI-fication.
2361 if (option 'ansi2knr')
2362 {
2363 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2364 my $ansi2knr_dir = '';
2366 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2367 TRUE, "ANSI2KNR", "U");
2369 # topdir is where ansi2knr should be.
2370 if ($ansi2knr_filename eq 'ansi2knr')
2371 {
2372 # Only require ansi2knr files if they should appear in
2373 # this directory.
2374 require_file ($ansi2knr_where, FOREIGN,
2375 'ansi2knr.c', 'ansi2knr.1');
2377 # ansi2knr needs to be built before subdirs, so unshift it.
2378 unshift (@all, '$(ANSI2KNR)');
2379 }
2380 else
2381 {
2382 $ansi2knr_dir = dirname ($ansi2knr_filename);
2383 }
2385 $output_rules .= &file_contents ('ansi2knr',
2386 new Automake::Location,
2387 'ANSI2KNR-DIR' => $ansi2knr_dir);
2389 }
2390 }
2392 # handle_libtool ()
2393 # -----------------
2394 # Handle libtool rules.
2395 sub handle_libtool
2396 {
2397 return unless var ('LIBTOOL');
2399 # Libtool requires some files, but only at top level.
2400 # (Starting with Libtool 2.0 we do not have to bother. These
2401 # requirements are done with AC_REQUIRE_AUX_FILE.)
2402 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2403 if $relative_dir eq '.' && ! $libtool_new_api;
2405 my @libtool_rms;
2406 foreach my $item (sort keys %libtool_clean_directories)
2407 {
2408 my $dir = ($item eq '.') ? '' : "$item/";
2409 # .libs is for Unix, _libs for DOS.
2410 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2411 }
2413 check_user_variables 'LIBTOOLFLAGS';
2415 # Output the libtool compilation rules.
2416 $output_rules .= &file_contents ('libtool',
2417 new Automake::Location,
2418 LTRMS => join ("\n", @libtool_rms));
2419 }
2421 # handle_programs ()
2422 # ------------------
2423 # Handle C programs.
2424 sub handle_programs
2425 {
2426 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2427 'bin', 'sbin', 'libexec', 'pkglib',
2428 'noinst', 'check');
2429 return if ! @proglist;
2431 my $seen_global_libobjs =
2432 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2434 foreach my $pair (@proglist)
2435 {
2436 my ($where, $one_file) = @$pair;
2438 my $seen_libobjs = 0;
2439 my $obj = get_object_extension '.$(OBJEXT)';
2441 # Strip any $(EXEEXT) suffix the user might have added, or this
2442 # will confuse &handle_source_transform and &check_canonical_spelling.
2443 # We'll add $(EXEEXT) back later anyway.
2444 $one_file =~ s/\$\(EXEEXT\)$//;
2446 $known_programs{$one_file} = $where;
2448 # Canonicalize names and check for misspellings.
2449 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2450 '_SOURCES', '_OBJECTS',
2451 '_DEPENDENCIES');
2453 $where->push_context ("while processing program `$one_file'");
2454 $where->set (INTERNAL->get);
2456 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2457 NONLIBTOOL => 1, LIBTOOL => 0);
2459 if (var ($xname . "_LDADD"))
2460 {
2461 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2462 }
2463 else
2464 {
2465 # User didn't define prog_LDADD override. So do it.
2466 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2468 # This does a bit too much work. But we need it to
2469 # generate _DEPENDENCIES when appropriate.
2470 if (var ('LDADD'))
2471 {
2472 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2473 }
2474 }
2476 reject_var ($xname . '_LIBADD',
2477 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2479 set_seen ($xname . '_DEPENDENCIES');
2480 set_seen ($xname . '_LDFLAGS');
2482 # Determine program to use for link.
2483 my $xlink = &define_per_target_linker_variable ($linker, $xname);
2485 # If the resulting program lies into a subdirectory,
2486 # make sure this directory will exist.
2487 my $dirstamp = require_build_directory_maybe ($one_file);
2489 $libtool_clean_directories{dirname ($one_file)} = 1;
2491 $output_rules .= &file_contents ('program',
2492 $where,
2493 PROGRAM => $one_file,
2494 XPROGRAM => $xname,
2495 XLINK => $xlink,
2496 DIRSTAMP => $dirstamp,
2497 EXEEXT => '$(EXEEXT)');
2499 if ($seen_libobjs || $seen_global_libobjs)
2500 {
2501 if (var ($xname . '_LDADD'))
2502 {
2503 &check_libobjs_sources ($xname, $xname . '_LDADD');
2504 }
2505 elsif (var ('LDADD'))
2506 {
2507 &check_libobjs_sources ($xname, 'LDADD');
2508 }
2509 }
2510 }
2511 }
2514 # handle_libraries ()
2515 # -------------------
2516 # Handle libraries.
2517 sub handle_libraries
2518 {
2519 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2520 'lib', 'pkglib', 'noinst', 'check');
2521 return if ! @liblist;
2523 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2524 'noinst', 'check');
2526 if (@prefix)
2527 {
2528 my $var = rvar ($prefix[0] . '_LIBRARIES');
2529 $var->requires_variables ('library used', 'RANLIB');
2530 }
2532 &define_variable ('AR', 'ar', INTERNAL);
2533 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2535 foreach my $pair (@liblist)
2536 {
2537 my ($where, $onelib) = @$pair;
2539 my $seen_libobjs = 0;
2540 # Check that the library fits the standard naming convention.
2541 my $bn = basename ($onelib);
2542 if ($bn !~ /^lib.*\.a$/)
2543 {
2544 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2545 my $suggestion = dirname ($onelib) . "/$bn";
2546 $suggestion =~ s|^\./||g;
2547 msg ('error-gnu/warn', $where,
2548 "`$onelib' is not a standard library name\n"
2549 . "did you mean `$suggestion'?")
2550 }
2552 $where->push_context ("while processing library `$onelib'");
2553 $where->set (INTERNAL->get);
2555 my $obj = get_object_extension '.$(OBJEXT)';
2557 # Canonicalize names and check for misspellings.
2558 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2559 '_OBJECTS', '_DEPENDENCIES',
2560 '_AR');
2562 if (! var ($xlib . '_AR'))
2563 {
2564 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2565 }
2567 # Generate support for conditional object inclusion in
2568 # libraries.
2569 if (var ($xlib . '_LIBADD'))
2570 {
2571 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2572 {
2573 $seen_libobjs = 1;
2574 }
2575 }
2576 else
2577 {
2578 &define_variable ($xlib . "_LIBADD", '', $where);
2579 }
2581 reject_var ($xlib . '_LDADD',
2582 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2584 # Make sure we at look at this.
2585 set_seen ($xlib . '_DEPENDENCIES');
2587 &handle_source_transform ($xlib, $onelib, $obj, $where,
2588 NONLIBTOOL => 1, LIBTOOL => 0);
2590 # If the resulting library lies into a subdirectory,
2591 # make sure this directory will exist.
2592 my $dirstamp = require_build_directory_maybe ($onelib);
2594 $output_rules .= &file_contents ('library',
2595 $where,
2596 LIBRARY => $onelib,
2597 XLIBRARY => $xlib,
2598 DIRSTAMP => $dirstamp);
2600 if ($seen_libobjs)
2601 {
2602 if (var ($xlib . '_LIBADD'))
2603 {
2604 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2605 }
2606 }
2607 }
2608 }
2611 # handle_ltlibraries ()
2612 # ---------------------
2613 # Handle shared libraries.
2614 sub handle_ltlibraries
2615 {
2616 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2617 'noinst', 'lib', 'pkglib', 'check');
2618 return if ! @liblist;
2620 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2621 'noinst', 'check');
2623 if (@prefix)
2624 {
2625 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2626 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2627 }
2629 my %instdirs = ();
2630 my %instsubdirs = ();
2631 my %instconds = ();
2632 my %liblocations = (); # Location (in Makefile.am) of each library.
2634 foreach my $key (@prefix)
2635 {
2636 # Get the installation directory of each library.
2637 my $dir = $key;
2638 my $strip_subdir = 1;
2639 if ($dir =~ /^nobase_/)
2640 {
2641 $dir =~ s/^nobase_//;
2642 $strip_subdir = 0;
2643 }
2644 my $var = rvar ($key . '_LTLIBRARIES');
2646 # We reject libraries which are installed in several places
2647 # in the same condition, because we can only specify one
2648 # `-rpath' option.
2649 $var->traverse_recursively
2650 (sub
2651 {
2652 my ($var, $val, $cond, $full_cond) = @_;
2653 my $hcond = $full_cond->human;
2654 my $where = $var->rdef ($cond)->location;
2655 my $ldir = '';
2656 $ldir = '/' . dirname ($val)
2657 if (!$strip_subdir);
2658 # A library cannot be installed in different directory
2659 # in overlapping conditions.
2660 if (exists $instconds{$val})
2661 {
2662 my ($msg, $acond) =
2663 $instconds{$val}->ambiguous_p ($val, $full_cond);
2665 if ($msg)
2666 {
2667 error ($where, $msg, partial => 1);
2668 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2669 $dirtxt = "built for `$dir'"
2670 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2671 my $dircond =
2672 $full_cond->true ? "" : " in condition $hcond";
2674 error ($where, "`$val' should be $dirtxt$dircond ...",
2675 partial => 1);
2677 my $hacond = $acond->human;
2678 my $adir = $instdirs{$val}{$acond};
2679 my $adirtxt = "installed in `$adir'";
2680 $adirtxt = "built for `$adir'"
2681 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2682 || $adir eq 'check');
2683 my $adircond = $acond->true ? "" : " in condition $hacond";
2685 my $onlyone = ($dir ne $adir) ?
2686 ("\nLibtool libraries can be built for only one "
2687 . "destination.") : "";
2689 error ($liblocations{$val}{$acond},
2690 "... and should also be $adirtxt$adircond.$onlyone");
2691 return;
2692 }
2693 }
2694 else
2695 {
2696 $instconds{$val} = new Automake::DisjConditions;
2697 }
2698 $instdirs{$val}{$full_cond} = $dir;
2699 $instsubdirs{$val}{$full_cond} = $ldir;
2700 $liblocations{$val}{$full_cond} = $where;
2701 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2702 },
2703 sub
2704 {
2705 return ();
2706 },
2707 skip_ac_subst => 1);
2708 }
2710 foreach my $pair (@liblist)
2711 {
2712 my ($where, $onelib) = @$pair;
2714 my $seen_libobjs = 0;
2715 my $obj = get_object_extension '.lo';
2717 # Canonicalize names and check for misspellings.
2718 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2719 '_SOURCES', '_OBJECTS',
2720 '_DEPENDENCIES');
2722 # Check that the library fits the standard naming convention.
2723 my $libname_rx = '^lib.*\.la';
2724 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2725 my $ldvar2 = var ('LDFLAGS');
2726 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2727 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2728 {
2729 # Relax name checking for libtool modules.
2730 $libname_rx = '\.la';
2731 }
2733 my $bn = basename ($onelib);
2734 if ($bn !~ /$libname_rx$/)
2735 {
2736 my $type = 'library';
2737 if ($libname_rx eq '\.la')
2738 {
2739 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2740 $type = 'module';
2741 }
2742 else
2743 {
2744 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2745 }
2746 my $suggestion = dirname ($onelib) . "/$bn";
2747 $suggestion =~ s|^\./||g;
2748 msg ('error-gnu/warn', $where,
2749 "`$onelib' is not a standard libtool $type name\n"
2750 . "did you mean `$suggestion'?")
2751 }
2753 $where->push_context ("while processing Libtool library `$onelib'");
2754 $where->set (INTERNAL->get);
2756 # Make sure we look at these.
2757 set_seen ($xlib . '_LDFLAGS');
2758 set_seen ($xlib . '_DEPENDENCIES');
2760 # Generate support for conditional object inclusion in
2761 # libraries.
2762 if (var ($xlib . '_LIBADD'))
2763 {
2764 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2765 {
2766 $seen_libobjs = 1;
2767 }
2768 }
2769 else
2770 {
2771 &define_variable ($xlib . "_LIBADD", '', $where);
2772 }
2774 reject_var ("${xlib}_LDADD",
2775 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2778 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2779 NONLIBTOOL => 0, LIBTOOL => 1);
2781 # Determine program to use for link.
2782 my $xlink = &define_per_target_linker_variable ($linker, $xlib);
2784 my $rpathvar = "am_${xlib}_rpath";
2785 my $rpath = "\$($rpathvar)";
2786 foreach my $rcond ($instconds{$onelib}->conds)
2787 {
2788 my $val;
2789 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2790 || $instdirs{$onelib}{$rcond} eq 'noinst'
2791 || $instdirs{$onelib}{$rcond} eq 'check')
2792 {
2793 # It's an EXTRA_ library, so we can't specify -rpath,
2794 # because we don't know where the library will end up.
2795 # The user probably knows, but generally speaking automake
2796 # doesn't -- and in fact configure could decide
2797 # dynamically between two different locations.
2798 $val = '';
2799 }
2800 else
2801 {
2802 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2803 $val .= $instsubdirs{$onelib}{$rcond}
2804 if defined $instsubdirs{$onelib}{$rcond};
2805 }
2806 if ($rcond->true)
2807 {
2808 # If $rcond is true there is only one condition and
2809 # there is no point defining an helper variable.
2810 $rpath = $val;
2811 }
2812 else
2813 {
2814 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2815 }
2816 }
2818 # If the resulting library lies into a subdirectory,
2819 # make sure this directory will exist.
2820 my $dirstamp = require_build_directory_maybe ($onelib);
2822 # Remember to cleanup .libs/ in this directory.
2823 my $dirname = dirname $onelib;
2824 $libtool_clean_directories{$dirname} = 1;
2826 $output_rules .= &file_contents ('ltlibrary',
2827 $where,
2828 LTLIBRARY => $onelib,
2829 XLTLIBRARY => $xlib,
2830 RPATH => $rpath,
2831 XLINK => $xlink,
2832 DIRSTAMP => $dirstamp);
2833 if ($seen_libobjs)
2834 {
2835 if (var ($xlib . '_LIBADD'))
2836 {
2837 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2838 }
2839 }
2840 }
2841 }
2843 # See if any _SOURCES variable were misspelled.
2844 sub check_typos ()
2845 {
2846 # It is ok if the user sets this particular variable.
2847 set_seen 'AM_LDFLAGS';
2849 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2850 {
2851 foreach my $var (variables $primary)
2852 {
2853 my $varname = $var->name;
2854 # A configure variable is always legitimate.
2855 next if exists $configure_vars{$varname};
2857 for my $cond ($var->conditions->conds)
2858 {
2859 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2860 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2861 . " program or\nlibrary has `$1' as canonic name"
2862 . " (possible typo)")
2863 unless $var->rdef ($cond)->seen;
2864 }
2865 }
2866 }
2867 }
2870 # Handle scripts.
2871 sub handle_scripts
2872 {
2873 # NOTE we no longer automatically clean SCRIPTS, because it is
2874 # useful to sometimes distribute scripts verbatim. This happens
2875 # e.g. in Automake itself.
2876 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2877 'bin', 'sbin', 'libexec', 'pkgdata',
2878 'noinst', 'check');
2879 }
2884 ## ------------------------ ##
2885 ## Handling Texinfo files. ##
2886 ## ------------------------ ##
2888 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2889 # &scan_texinfo_file ($FILENAME)
2890 # ------------------------------
2891 # $OUTFILE - name of the info file produced by $FILENAME.
2892 # $VFILE - name of the version.texi file used (undef if none).
2893 # @CLEAN_FILES - list of byproducts (indexes etc.)
2894 sub scan_texinfo_file ($)
2895 {
2896 my ($filename) = @_;
2898 # Some of the following extensions are always created, no matter
2899 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2900 # are only created when they are used. We used to scan $FILENAME
2901 # for their use, but that is not enough: they could be used in
2902 # included files. We can't scan included files because we don't
2903 # know the include path. Therefore we always erase these files, no
2904 # matter whether they are used or not.
2905 #
2906 # (tmp is only created if an @macro is used and a certain e-TeX
2907 # feature is not available.)
2908 my %clean_suffixes =
2909 map { $_ => 1 } (qw(aux log toc tmp
2910 cp cps
2911 fn fns
2912 ky kys
2913 vr vrs
2914 tp tps
2915 pg pgs)); # grep 'new.*index' texinfo.tex
2917 my $texi = new Automake::XFile "< $filename";
2918 verb "reading $filename";
2920 my ($outfile, $vfile);
2921 while ($_ = $texi->getline)
2922 {
2923 if (/^\@setfilename +(\S+)/)
2924 {
2925 # Honor only the first @setfilename. (It's possible to have
2926 # more occurrences later if the manual shows examples of how
2927 # to use @setfilename...)
2928 next if $outfile;
2930 $outfile = $1;
2931 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2932 {
2933 error ("$filename:$.",
2934 "output `$outfile' has unrecognized extension");
2935 return;
2936 }
2937 }
2938 # A "version.texi" file is actually any file whose name matches
2939 # "vers*.texi".
2940 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2941 {
2942 $vfile = $1;
2943 }
2945 # Try to find new or unused indexes.
2947 # Creating a new category of index.
2948 elsif (/^\@def(code)?index (\w+)/)
2949 {
2950 $clean_suffixes{$2} = 1;
2951 $clean_suffixes{"$2s"} = 1;
2952 }
2954 # Merging an index into an another.
2955 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2956 {
2957 delete $clean_suffixes{"$2s"};
2958 $clean_suffixes{"$3s"} = 1;
2959 }
2961 }
2963 if (! $outfile)
2964 {
2965 err_am "`$filename' missing \@setfilename";
2966 return;
2967 }
2969 my $infobase = basename ($filename);
2970 $infobase =~ s/\.te?xi(nfo)?$//;
2971 return ($outfile, $vfile,
2972 map { "$infobase.$_" } (sort keys %clean_suffixes));
2973 }
2976 # ($DIRSTAMP, @CLEAN_FILES)
2977 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2978 # ------------------------------------------------------------------
2979 # SOURCE - the source Texinfo file
2980 # DEST - the destination Info file
2981 # INSRC - wether DEST should be built in the source tree
2982 # DEPENDENCIES - known dependencies
2983 sub output_texinfo_build_rules ($$$@)
2984 {
2985 my ($source, $dest, $insrc, @deps) = @_;
2987 # Split `a.texi' into `a' and `.texi'.
2988 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2989 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2991 $ssfx ||= "";
2992 $dsfx ||= "";
2994 # We can output two kinds of rules: the "generic" rules use Make
2995 # suffix rules and are appropriate when $source and $dest do not lie
2996 # in a sub-directory; the "specific" rules are needed in the other
2997 # case.
2998 #
2999 # The former are output only once (this is not really apparent here,
3000 # but just remember that some logic deeper in Automake will not
3001 # output the same rule twice); while the later need to be output for
3002 # each Texinfo source.
3003 my $generic;
3004 my $makeinfoflags;
3005 my $sdir = dirname $source;
3006 if ($sdir eq '.' && dirname ($dest) eq '.')
3007 {
3008 $generic = 1;
3009 $makeinfoflags = '-I $(srcdir)';
3010 }
3011 else
3012 {
3013 $generic = 0;
3014 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3015 }
3017 # A directory can contain two kinds of info files: some built in the
3018 # source tree, and some built in the build tree. The rules are
3019 # different in each case. However we cannot output two different
3020 # set of generic rules. Because in-source builds are more usual, we
3021 # use generic rules in this case and fall back to "specific" rules
3022 # for build-dir builds. (It should not be a problem to invert this
3023 # if needed.)
3024 $generic = 0 unless $insrc;
3026 # We cannot use a suffix rule to build info files with an empty
3027 # extension. Otherwise we would output a single suffix inference
3028 # rule, with separate dependencies, as in
3029 #
3030 # .texi:
3031 # $(MAKEINFO) ...
3032 # foo.info: foo.texi
3033 #
3034 # which confuse Solaris make. (See the Autoconf manual for
3035 # details.) Therefore we use a specific rule in this case. This
3036 # applies to info files only (dvi and pdf files always have an
3037 # extension).
3038 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3040 # If the resulting file lie into a subdirectory,
3041 # make sure this directory will exist.
3042 my $dirstamp = require_build_directory_maybe ($dest);
3044 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3046 $output_rules .= file_contents ('texibuild',
3047 new Automake::Location,
3048 DEPS => "@deps",
3049 DEST_PREFIX => $dpfx,
3050 DEST_INFO_PREFIX => $dipfx,
3051 DEST_SUFFIX => $dsfx,
3052 DIRSTAMP => $dirstamp,
3053 GENERIC => $generic,
3054 GENERIC_INFO => $generic_info,
3055 INSRC => $insrc,
3056 MAKEINFOFLAGS => $makeinfoflags,
3057 SOURCE => ($generic
3058 ? '$<' : $source),
3059 SOURCE_INFO => ($generic_info
3060 ? '$<' : $source),
3061 SOURCE_REAL => $source,
3062 SOURCE_SUFFIX => $ssfx,
3063 );
3064 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3065 }
3068 # $TEXICLEANS
3069 # handle_texinfo_helper ($info_texinfos)
3070 # --------------------------------------
3071 # Handle all Texinfo source; helper for handle_texinfo.
3072 sub handle_texinfo_helper ($)
3073 {
3074 my ($info_texinfos) = @_;
3075 my (@infobase, @info_deps_list, @texi_deps);
3076 my %versions;
3077 my $done = 0;
3078 my @texi_cleans;
3080 # Build a regex matching user-cleaned files.
3081 my $d = var 'DISTCLEANFILES';
3082 my $c = var 'CLEANFILES';
3083 my @f = ();
3084 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3085 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3086 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3087 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3089 foreach my $texi
3090 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3091 {
3092 my $infobase = $texi;
3093 $infobase =~ s/\.(txi|texinfo|texi)$//;
3095 if ($infobase eq $texi)
3096 {
3097 # FIXME: report line number.
3098 err_am "texinfo file `$texi' has unrecognized extension";
3099 next;
3100 }
3102 push @infobase, $infobase;
3104 # If 'version.texi' is referenced by input file, then include
3105 # automatic versioning capability.
3106 my ($out_file, $vtexi, @clean_files) =
3107 scan_texinfo_file ("$relative_dir/$texi")
3108 or next;
3109 push (@texi_cleans, @clean_files);
3111 # If the Texinfo source is in a subdirectory, create the
3112 # resulting info in this subdirectory. If it is in the current
3113 # directory, try hard to not prefix "./" because it breaks the
3114 # generic rules.
3115 my $outdir = dirname ($texi) . '/';
3116 $outdir = "" if $outdir eq './';
3117 $out_file = $outdir . $out_file;
3119 # Until Automake 1.6.3, .info files were built in the
3120 # source tree. This was an obstacle to the support of
3121 # non-distributed .info files, and non-distributed .texi
3122 # files.
3123 #
3124 # * Non-distributed .texi files is important in some packages
3125 # where .texi files are built at make time, probably using
3126 # other binaries built in the package itself, maybe using
3127 # tools or information found on the build host. Because
3128 # these files are not distributed they are always rebuilt
3129 # at make time; they should therefore not lie in the source
3130 # directory. One plan was to support this using
3131 # nodist_info_TEXINFOS or something similar. (Doing this
3132 # requires some sanity checks. For instance Automake should
3133 # not allow:
3134 # dist_info_TEXINFOS = foo.texi
3135 # nodist_foo_TEXINFOS = included.texi
3136 # because a distributed file should never depend on a
3137 # non-distributed file.)
3138 #
3139 # * If .texi files are not distributed, then .info files should
3140 # not be distributed either. There are also cases where one
3141 # wants to distribute .texi files, but does not want to
3142 # distribute the .info files. For instance the Texinfo package
3143 # distributes the tool used to build these files; it would
3144 # be a waste of space to distribute them. It's not clear
3145 # which syntax we should use to indicate that .info files should
3146 # not be distributed. Akim Demaille suggested that eventually
3147 # we switch to a new syntax:
3148 # | Maybe we should take some inspiration from what's already
3149 # | done in the rest of Automake. Maybe there is too much
3150 # | syntactic sugar here, and you want
3151 # | nodist_INFO = bar.info
3152 # | dist_bar_info_SOURCES = bar.texi
3153 # | bar_texi_DEPENDENCIES = foo.texi
3154 # | with a bit of magic to have bar.info represent the whole
3155 # | bar*info set. That's a lot more verbose that the current
3156 # | situation, but it is # not new, hence the user has less
3157 # | to learn.
3158 # |
3159 # | But there is still too much room for meaningless specs:
3160 # | nodist_INFO = bar.info
3161 # | dist_bar_info_SOURCES = bar.texi
3162 # | dist_PS = bar.ps something-written-by-hand.ps
3163 # | nodist_bar_ps_SOURCES = bar.texi
3164 # | bar_texi_DEPENDENCIES = foo.texi
3165 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3166 #
3167 # Back to the point, it should be clear that in order to support
3168 # non-distributed .info files, we need to build them in the
3169 # build tree, not in the source tree (non-distributed .texi
3170 # files are less of a problem, because we do not output build
3171 # rules for them). In Automake 1.7 .info build rules have been
3172 # largely cleaned up so that .info files get always build in the
3173 # build tree, even when distributed. The idea was that
3174 # (1) if during a VPATH build the .info file was found to be
3175 # absent or out-of-date (in the source tree or in the
3176 # build tree), Make would rebuild it in the build tree.
3177 # If an up-to-date source-tree of the .info file existed,
3178 # make would not rebuild it in the build tree.
3179 # (2) having two copies of .info files, one in the source tree
3180 # and one (newer) in the build tree is not a problem
3181 # because `make dist' always pick files in the build tree
3182 # first.
3183 # However it turned out the be a bad idea for several reasons:
3184 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3185 # like GNU Make on point (1) above. These implementations
3186 # of Make would always rebuild .info files in the build
3187 # tree, even if such files were up to date in the source
3188 # tree. Consequently, it was impossible to perform a VPATH
3189 # build of a package containing Texinfo files using these
3190 # Make implementations.
3191 # (Refer to the Autoconf Manual, section "Limitation of
3192 # Make", paragraph "VPATH", item "target lookup", for
3193 # an account of the differences between these
3194 # implementations.)
3195 # * The GNU Coding Standards require these files to be built
3196 # in the source-tree (when they are distributed, that is).
3197 # * Keeping a fresher copy of distributed files in the
3198 # build tree can be annoying during development because
3199 # - if the files is kept under CVS, you really want it
3200 # to be updated in the source tree
3201 # - it is confusing that `make distclean' does not erase
3202 # all files in the build tree.
3203 #
3204 # Consequently, starting with Automake 1.8, .info files are
3205 # built in the source tree again. Because we still plan to
3206 # support non-distributed .info files at some point, we
3207 # have a single variable ($INSRC) that controls whether
3208 # the current .info file must be built in the source tree
3209 # or in the build tree. Actually this variable is switched
3210 # off for .info files that appear to be cleaned; this is
3211 # for backward compatibility with package such as Texinfo,
3212 # which do things like
3213 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3214 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3215 # # Do not create info files for distribution.
3216 # dist-info:
3217 # in order not to distribute .info files.
3218 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3220 my $soutdir = '$(srcdir)/' . $outdir;
3221 $outdir = $soutdir if $insrc;
3223 # If user specified file_TEXINFOS, then use that as explicit
3224 # dependency list.
3225 @texi_deps = ();
3226 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3228 my $canonical = canonicalize ($infobase);
3229 if (var ($canonical . "_TEXINFOS"))
3230 {
3231 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3232 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3233 }
3235 my ($dirstamp, @cfiles) =
3236 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3237 push (@texi_cleans, @cfiles);
3239 push (@info_deps_list, $out_file);
3241 # If a vers*.texi file is needed, emit the rule.
3242 if ($vtexi)
3243 {
3244 err_am ("`$vtexi', included in `$texi', "
3245 . "also included in `$versions{$vtexi}'")
3246 if defined $versions{$vtexi};
3247 $versions{$vtexi} = $texi;
3249 # We number the stamp-vti files. This is doable since the
3250 # actual names don't matter much. We only number starting
3251 # with the second one, so that the common case looks nice.
3252 my $vti = ($done ? $done : 'vti');
3253 ++$done;
3255 # This is ugly, but it is our historical practice.
3256 if ($config_aux_dir_set_in_configure_ac)
3257 {
3258 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3259 'mdate-sh');
3260 }
3261 else
3262 {
3263 require_file_with_macro (TRUE, 'info_TEXINFOS',
3264 FOREIGN, 'mdate-sh');
3265 }
3267 my $conf_dir;
3268 if ($config_aux_dir_set_in_configure_ac)
3269 {
3270 $conf_dir = "$am_config_aux_dir/";
3271 }
3272 else
3273 {
3274 $conf_dir = '$(srcdir)/';
3275 }
3276 $output_rules .= file_contents ('texi-vers',
3277 new Automake::Location,
3278 TEXI => $texi,
3279 VTI => $vti,
3280 STAMPVTI => "${soutdir}stamp-$vti",
3281 VTEXI => "$soutdir$vtexi",
3282 MDDIR => $conf_dir,
3283 DIRSTAMP => $dirstamp);
3284 }
3285 }
3287 # Handle location of texinfo.tex.
3288 my $need_texi_file = 0;
3289 my $texinfodir;
3290 if (var ('TEXINFO_TEX'))
3291 {
3292 # The user defined TEXINFO_TEX so assume he knows what he is
3293 # doing.
3294 $texinfodir = ('$(srcdir)/'
3295 . dirname (variable_value ('TEXINFO_TEX')));
3296 }
3297 elsif (option 'cygnus')
3298 {
3299 $texinfodir = '$(top_srcdir)/../texinfo';
3300 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3301 }
3302 elsif ($config_aux_dir_set_in_configure_ac)
3303 {
3304 $texinfodir = $am_config_aux_dir;
3305 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3306 $need_texi_file = 2; # so that we require_conf_file later
3307 }
3308 else
3309 {
3310 $texinfodir = '$(srcdir)';
3311 $need_texi_file = 1;
3312 }
3313 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3315 push (@dist_targets, 'dist-info');
3317 if (! option 'no-installinfo')
3318 {
3319 # Make sure documentation is made and installed first. Use
3320 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3321 # get run twice during "make all".
3322 unshift (@all, '$(INFO_DEPS)');
3323 }
3325 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3326 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3327 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3328 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3330 # This next isn't strictly needed now -- the places that look here
3331 # could easily be changed to look in info_TEXINFOS. But this is
3332 # probably better, in case noinst_TEXINFOS is ever supported.
3333 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3335 # Do some error checking. Note that this file is not required
3336 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3337 # up above.
3338 if ($need_texi_file && ! option 'no-texinfo.tex')
3339 {
3340 if ($need_texi_file > 1)
3341 {
3342 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3343 'texinfo.tex');
3344 }
3345 else
3346 {
3347 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3348 'texinfo.tex');
3349 }
3350 }
3352 return makefile_wrap ("", "\t ", @texi_cleans);
3353 }
3356 # handle_texinfo ()
3357 # -----------------
3358 # Handle all Texinfo source.
3359 sub handle_texinfo ()
3360 {
3361 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3362 # FIXME: I think this is an obsolete future feature name.
3363 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3365 my $info_texinfos = var ('info_TEXINFOS');
3366 my $texiclean = "";
3367 if ($info_texinfos)
3368 {
3369 $texiclean = handle_texinfo_helper ($info_texinfos);
3370 }
3371 $output_rules .= file_contents ('texinfos',
3372 new Automake::Location,
3373 TEXICLEAN => $texiclean,
3374 'LOCAL-TEXIS' => !!$info_texinfos);
3375 }
3378 # Handle any man pages.
3379 sub handle_man_pages
3380 {
3381 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3383 # Find all the sections in use. We do this by first looking for
3384 # "standard" sections, and then looking for any additional
3385 # sections used in man_MANS.
3386 my (%sections, %notrans_sections, %trans_sections,
3387 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3388 # We handle nodist_ for uniformity. man pages aren't distributed
3389 # by default so it isn't actually very important.
3390 foreach my $npfx ('', 'notrans_')
3391 {
3392 foreach my $pfx ('', 'dist_', 'nodist_')
3393 {
3394 # Add more sections as needed.
3395 foreach my $section ('0'..'9', 'n', 'l')
3396 {
3397 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3398 if (var ($varname))
3399 {
3400 $sections{$section} = 1;
3401 $varname = '$(' . $varname . ')';
3402 if ($npfx eq 'notrans_')
3403 {
3404 $notrans_sections{$section} = 1;
3405 $notrans_sect_vars{$varname} = 1;
3406 }
3407 else
3408 {
3409 $trans_sections{$section} = 1;
3410 $trans_sect_vars{$varname} = 1;
3411 }
3413 &push_dist_common ($varname)
3414 if $pfx eq 'dist_';
3415 }
3416 }
3418 my $varname = $npfx . $pfx . 'man_MANS';
3419 my $var = var ($varname);
3420 if ($var)
3421 {
3422 foreach ($var->value_as_list_recursive)
3423 {
3424 # A page like `foo.1c' goes into man1dir.
3425 if (/\.([0-9a-z])([a-z]*)$/)
3426 {
3427 $sections{$1} = 1;
3428 if ($npfx eq 'notrans_')
3429 {
3430 $notrans_sections{$1} = 1;
3431 }
3432 else
3433 {
3434 $trans_sections{$1} = 1;
3435 }
3436 }
3437 }
3439 $varname = '$(' . $varname . ')';
3440 if ($npfx eq 'notrans_')
3441 {
3442 $notrans_vars{$varname} = 1;
3443 }
3444 else
3445 {
3446 $trans_vars{$varname} = 1;
3447 }
3448 &push_dist_common ($varname)
3449 if $pfx eq 'dist_';
3450 }
3451 }
3452 }
3454 return unless %sections;
3456 my @unsorted_deps;
3458 # Build section independent variables.
3459 my $have_notrans = %notrans_vars;
3460 my @notrans_list = sort keys %notrans_vars;
3461 my $have_trans = %trans_vars;
3462 my @trans_list = sort keys %trans_vars;
3464 # Now for each section, generate an install and uninstall rule.
3465 # Sort sections so output is deterministic.
3466 foreach my $section (sort keys %sections)
3467 {
3468 # Build section dependent variables.
3469 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3470 my $trans_mans = $have_trans || exists $trans_sections{$section};
3471 my (%notrans_this_sect, %trans_this_sect);
3472 my $expr = 'man' . $section . '_MANS';
3473 foreach my $varname (keys %notrans_sect_vars)
3474 {
3475 if ($varname =~ /$expr/)
3476 {
3477 $notrans_this_sect{$varname} = 1;
3478 }
3479 }
3480 foreach my $varname (keys %trans_sect_vars)
3481 {
3482 if ($varname =~ /$expr/)
3483 {
3484 $trans_this_sect{$varname} = 1;
3485 }
3486 }
3487 my @notrans_sect_list = sort keys %notrans_this_sect;
3488 my @trans_sect_list = sort keys %trans_this_sect;
3489 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3490 keys %notrans_this_sect, keys %trans_this_sect);
3491 my @deps = sort @unsorted_deps;
3492 $output_rules .= &file_contents ('mans',
3493 new Automake::Location,
3494 SECTION => $section,
3495 DEPS => "@deps",
3496 NOTRANS_MANS => $notrans_mans,
3497 NOTRANS_SECT_LIST => "@notrans_sect_list",
3498 HAVE_NOTRANS => $have_notrans,
3499 NOTRANS_LIST => "@notrans_list",
3500 TRANS_MANS => $trans_mans,
3501 TRANS_SECT_LIST => "@trans_sect_list",
3502 HAVE_TRANS => $have_trans,
3503 TRANS_LIST => "@trans_list");
3504 }
3506 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3507 keys %notrans_sect_vars, keys %trans_sect_vars);
3508 my @mans = sort @unsorted_deps;
3509 $output_vars .= file_contents ('mans-vars',
3510 new Automake::Location,
3511 MANS => "@mans");
3513 push (@all, '$(MANS)')
3514 unless option 'no-installman';
3515 }
3517 # Handle DATA variables.
3518 sub handle_data
3519 {
3520 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3521 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3522 'sysconf', 'sharedstate', 'localstate',
3523 'pkgdata', 'lisp', 'noinst', 'check');
3524 }
3526 # Handle TAGS.
3527 sub handle_tags
3528 {
3529 my @tag_deps = ();
3530 my @ctag_deps = ();
3531 if (var ('SUBDIRS'))
3532 {
3533 $output_rules .= ("tags-recursive:\n"
3534 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3535 # Never fail here if a subdir fails; it
3536 # isn't important.
3537 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3538 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3539 . "\tdone\n");
3540 push (@tag_deps, 'tags-recursive');
3541 &depend ('.PHONY', 'tags-recursive');
3543 $output_rules .= ("ctags-recursive:\n"
3544 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3545 # Never fail here if a subdir fails; it
3546 # isn't important.
3547 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3548 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3549 . "\tdone\n");
3550 push (@ctag_deps, 'ctags-recursive');
3551 &depend ('.PHONY', 'ctags-recursive');
3552 }
3554 if (&saw_sources_p (1)
3555 || var ('ETAGS_ARGS')
3556 || @tag_deps)
3557 {
3558 my @config;
3559 foreach my $spec (@config_headers)
3560 {
3561 my ($out, @ins) = split_config_file_spec ($spec);
3562 foreach my $in (@ins)
3563 {
3564 # If the config header source is in this directory,
3565 # require it.
3566 push @config, basename ($in)
3567 if $relative_dir eq dirname ($in);
3568 }
3569 }
3570 $output_rules .= &file_contents ('tags',
3571 new Automake::Location,
3572 CONFIG => "@config",
3573 TAGSDIRS => "@tag_deps",
3574 CTAGSDIRS => "@ctag_deps");
3576 set_seen 'TAGS_DEPENDENCIES';
3577 }
3578 elsif (reject_var ('TAGS_DEPENDENCIES',
3579 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3580 . "without\nsources or `ETAGS_ARGS'"))
3581 {
3582 }
3583 else
3584 {
3585 # Every Makefile must define some sort of TAGS rule.
3586 # Otherwise, it would be possible for a top-level "make TAGS"
3587 # to fail because some subdirectory failed.
3588 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3589 # Ditto ctags.
3590 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3591 }
3592 }
3594 # Handle multilib support.
3595 sub handle_multilib
3596 {
3597 if ($seen_multilib && $relative_dir eq '.')
3598 {
3599 $output_rules .= &file_contents ('multilib', new Automake::Location);
3600 push (@all, 'all-multi');
3601 }
3602 }
3605 # user_phony_rule ($NAME)
3606 # -----------------------
3607 # Return false if rule $NAME does not exist. Otherwise,
3608 # declare it as phony, complete its definition (in case it is
3609 # conditional), and return its Automake::Rule instance.
3610 sub user_phony_rule ($)
3611 {
3612 my ($name) = @_;
3613 my $rule = rule $name;
3614 if ($rule)
3615 {
3616 depend ('.PHONY', $name);
3617 # Define $NAME in all condition where it is not already defined,
3618 # so that it is always OK to depend on $NAME.
3619 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3620 {
3621 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3622 $c, INTERNAL);
3623 $output_rules .= $c->subst_string . "$name:\n";
3624 }
3625 }
3626 return $rule;
3627 }
3630 # $BOOLEAN
3631 # &for_dist_common ($A, $B)
3632 # -------------------------
3633 # Subroutine for &handle_dist: sort files to dist.
3634 #
3635 # We put README first because it then becomes easier to make a
3636 # Usenet-compliant shar file (in these, README must be first).
3637 #
3638 # FIXME: do more ordering of files here.
3639 sub for_dist_common
3640 {
3641 return 0
3642 if $a eq $b;
3643 return -1
3644 if $a eq 'README';
3645 return 1
3646 if $b eq 'README';
3647 return $a cmp $b;
3648 }
3650 # handle_dist
3651 # -----------
3652 # Handle 'dist' target.
3653 sub handle_dist ()
3654 {
3655 # Substitutions for distdir.am
3656 my %transform;
3658 # Define DIST_SUBDIRS. This must always be done, regardless of the
3659 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3660 my $subdirs = var ('SUBDIRS');
3661 if ($subdirs)
3662 {
3663 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3664 # to all possible directories, and use it. If DIST_SUBDIRS is
3665 # defined, just use it.
3667 # Note that we check DIST_SUBDIRS first on purpose, so that
3668 # we don't call has_conditional_contents for now reason.
3669 # (In the past one project used so many conditional subdirectories
3670 # that calling has_conditional_contents on SUBDIRS caused
3671 # automake to grow to 150Mb -- this should not happen with
3672 # the current implementation of has_conditional_contents,
3673 # but it's more efficient to avoid the call anyway.)
3674 if (var ('DIST_SUBDIRS'))
3675 {
3676 }
3677 elsif ($subdirs->has_conditional_contents)
3678 {
3679 define_pretty_variable
3680 ('DIST_SUBDIRS', TRUE, INTERNAL,
3681 uniq ($subdirs->value_as_list_recursive));
3682 }
3683 else
3684 {
3685 # We always define this because that is what `distclean'
3686 # wants.
3687 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3688 '$(SUBDIRS)');
3689 }
3690 }
3692 # The remaining definitions are only required when a dist target is used.
3693 return if option 'no-dist';
3695 # At least one of the archive formats must be enabled.
3696 if ($relative_dir eq '.')
3697 {
3698 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3699 $archive_defined ||=
3700 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma);
3701 error (option 'no-dist-gzip',
3702 "no-dist-gzip specified but no dist-* specified, "
3703 . "at least one archive format must be enabled")
3704 unless $archive_defined;
3705 }
3707 # Look for common files that should be included in distribution.
3708 # If the aux dir is set, and it does not have a Makefile.am, then
3709 # we check for these files there as well.
3710 my $check_aux = 0;
3711 if ($relative_dir eq '.'
3712 && $config_aux_dir_set_in_configure_ac)
3713 {
3714 if (! &is_make_dir ($config_aux_dir))
3715 {
3716 $check_aux = 1;
3717 }
3718 }
3719 foreach my $cfile (@common_files)
3720 {
3721 if (dir_has_case_matching_file ($relative_dir, $cfile)
3722 # The file might be absent, but if it can be built it's ok.
3723 || rule $cfile)
3724 {
3725 &push_dist_common ($cfile);
3726 }
3728 # Don't use `elsif' here because a file might meaningfully
3729 # appear in both directories.
3730 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3731 {
3732 &push_dist_common ("$config_aux_dir/$cfile")
3733 }
3734 }
3736 # We might copy elements from $configure_dist_common to
3737 # %dist_common if we think we need to. If the file appears in our
3738 # directory, we would have discovered it already, so we don't
3739 # check that. But if the file is in a subdir without a Makefile,
3740 # we want to distribute it here if we are doing `.'. Ugly!
3741 if ($relative_dir eq '.')
3742 {
3743 foreach my $file (split (' ' , $configure_dist_common))
3744 {
3745 push_dist_common ($file)
3746 unless is_make_dir (dirname ($file));
3747 }
3748 }
3750 # Files to distributed. Don't use ->value_as_list_recursive
3751 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3752 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3753 @dist_common = uniq (sort for_dist_common (@dist_common));
3754 variable_delete 'DIST_COMMON';
3755 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3757 # Now that we've processed DIST_COMMON, disallow further attempts
3758 # to set it.
3759 $handle_dist_run = 1;
3761 # Scan EXTRA_DIST to see if we need to distribute anything from a
3762 # subdir. If so, add it to the list. I didn't want to do this
3763 # originally, but there were so many requests that I finally
3764 # relented.
3765 my $extra_dist = var ('EXTRA_DIST');
3767 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3768 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3770 # If the target `dist-hook' exists, make sure it is run. This
3771 # allows users to do random weird things to the distribution
3772 # before it is packaged up.
3773 push (@dist_targets, 'dist-hook')
3774 if user_phony_rule 'dist-hook';
3775 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3777 my $flm = option ('filename-length-max');
3778 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3780 $output_rules .= &file_contents ('distdir',
3781 new Automake::Location,
3782 %transform,
3783 FILENAME_FILTER => $filename_filter);
3784 }
3787 # check_directory ($NAME, $WHERE)
3788 # -------------------------------
3789 # Ensure $NAME is a directory, and that it uses a sane name.
3790 # Use $WHERE as a location in the diagnostic, if any.
3791 sub check_directory ($$)
3792 {
3793 my ($dir, $where) = @_;
3795 error $where, "required directory $relative_dir/$dir does not exist"
3796 unless -d "$relative_dir/$dir";
3798 # If an `obj/' directory exists, BSD make will enter it before
3799 # reading `Makefile'. Hence the `Makefile' in the current directory
3800 # will not be read.
3801 #
3802 # % cat Makefile
3803 # all:
3804 # echo Hello
3805 # % cat obj/Makefile
3806 # all:
3807 # echo World
3808 # % make # GNU make
3809 # echo Hello
3810 # Hello
3811 # % pmake # BSD make
3812 # echo World
3813 # World
3814 msg ('portability', $where,
3815 "naming a subdirectory `obj' causes troubles with BSD make")
3816 if $dir eq 'obj';
3818 # `aux' is probably the most important of the following forbidden name,
3819 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3820 msg ('portability', $where,
3821 "name `$dir' is reserved on W32 and DOS platforms")
3822 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3823 }
3825 # check_directories_in_var ($VARIABLE)
3826 # ------------------------------------
3827 # Recursively check all items in variables $VARIABLE as directories
3828 sub check_directories_in_var ($)
3829 {
3830 my ($var) = @_;
3831 $var->traverse_recursively
3832 (sub
3833 {
3834 my ($var, $val, $cond, $full_cond) = @_;
3835 check_directory ($val, $var->rdef ($cond)->location);
3836 return ();
3837 },
3838 undef,
3839 skip_ac_subst => 1);
3840 }
3842 # &handle_subdirs ()
3843 # ------------------
3844 # Handle subdirectories.
3845 sub handle_subdirs ()
3846 {
3847 my $subdirs = var ('SUBDIRS');
3848 return
3849 unless $subdirs;
3851 check_directories_in_var $subdirs;
3853 my $dsubdirs = var ('DIST_SUBDIRS');
3854 check_directories_in_var $dsubdirs
3855 if $dsubdirs;
3857 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3858 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3859 }
3862 # ($REGEN, @DEPENDENCIES)
3863 # &scan_aclocal_m4
3864 # ----------------
3865 # If aclocal.m4 creation is automated, return the list of its dependencies.
3866 sub scan_aclocal_m4 ()
3867 {
3868 my $regen_aclocal = 0;
3870 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3871 set_seen 'CONFIGURE_DEPENDENCIES';
3873 if (-f 'aclocal.m4')
3874 {
3875 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3877 my $aclocal = new Automake::XFile "< aclocal.m4";
3878 my $line = $aclocal->getline;
3879 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3880 }
3882 my @ac_deps = ();
3884 if (set_seen ('ACLOCAL_M4_SOURCES'))
3885 {
3886 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3887 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3888 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3889 . "It should be safe to simply remove it.");
3890 }
3892 # Note that it might be possible that aclocal.m4 doesn't exist but
3893 # should be auto-generated. This case probably isn't very
3894 # important.
3896 return ($regen_aclocal, @ac_deps);
3897 }
3900 # Helper function for substitute_ac_subst_variables.
3901 sub substitute_ac_subst_variables_worker($)
3902 {
3903 my ($token) = @_;
3904 return "\@$token\@" if var $token;
3905 return "\${$token\}";
3906 }
3908 # substitute_ac_subst_variables ($TEXT)
3909 # -------------------------------------
3910 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3911 # variable.
3912 sub substitute_ac_subst_variables ($)
3913 {
3914 my ($text) = @_;
3915 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3916 return $text;
3917 }
3919 # @DEPENDENCIES
3920 # &prepend_srcdir (@INPUTS)
3921 # -------------------------
3922 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3923 # if an input file has a directory part the same as the current
3924 # directory, then the directory part is simply replaced by $(srcdir).
3925 # But if the directory part is different, then $(top_srcdir) is
3926 # prepended.
3927 sub prepend_srcdir (@)
3928 {
3929 my (@inputs) = @_;
3930 my @newinputs;
3932 foreach my $single (@inputs)
3933 {
3934 if (dirname ($single) eq $relative_dir)
3935 {
3936 push (@newinputs, '$(srcdir)/' . basename ($single));
3937 }
3938 else
3939 {
3940 push (@newinputs, '$(top_srcdir)/' . $single);
3941 }
3942 }
3943 return @newinputs;
3944 }
3946 # @DEPENDENCIES
3947 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3948 # ---------------------------------------------------
3949 # Compute a list of dependencies appropriate for the rebuild
3950 # rule of
3951 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3952 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOS.
3953 sub rewrite_inputs_into_dependencies ($@)
3954 {
3955 my ($file, @inputs) = @_;
3956 my @res = ();
3958 for my $i (@inputs)
3959 {
3960 # We cannot create dependencies on shell variables.
3961 next if (substitute_ac_subst_variables $i) =~ /\$/;
3963 if (exists $ac_config_files_location{$i} && $i ne $file)
3964 {
3965 my $di = dirname $i;
3966 if ($di eq $relative_dir)
3967 {
3968 $i = basename $i;
3969 }
3970 # In the top-level Makefile we do not use $(top_builddir), because
3971 # we are already there, and since the targets are built without
3972 # a $(top_builddir), it helps BSD Make to match them with
3973 # dependencies.
3974 elsif ($relative_dir ne '.')
3975 {
3976 $i = '$(top_builddir)/' . $i;
3977 }
3978 }
3979 else
3980 {
3981 msg ('error', $ac_config_files_location{$file},
3982 "required file `$i' not found")
3983 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3984 ($i) = prepend_srcdir ($i);
3985 push_dist_common ($i);
3986 }
3987 push @res, $i;
3988 }
3989 return @res;
3990 }
3994 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3995 # ------------------------------------------------------------------
3996 # Handle remaking and configure stuff.
3997 # We need the name of the input file, to do proper remaking rules.
3998 sub handle_configure ($$$@)
3999 {
4000 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4002 prog_error 'empty @inputs'
4003 unless @inputs;
4005 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4006 $makefile_in);
4007 my $rel_makefile = basename $makefile;
4009 my $colon_infile = ':' . join (':', @inputs);
4010 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4011 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4012 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4013 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4014 @configure_deps, @aclocal_m4_deps,
4015 '$(top_srcdir)/' . $configure_ac);
4016 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4017 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4018 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4019 @configuredeps);
4021 $output_rules .= file_contents
4022 ('configure',
4023 new Automake::Location,
4024 MAKEFILE => $rel_makefile,
4025 'MAKEFILE-DEPS' => "@rewritten",
4026 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4027 'MAKEFILE-IN' => $rel_makefile_in,
4028 'MAKEFILE-IN-DEPS' => "@include_stack",
4029 'MAKEFILE-AM' => $rel_makefile_am,
4030 STRICTNESS => global_option 'cygnus'
4031 ? 'cygnus' : $strictness_name,
4032 'USE-DEPS' => global_option 'no-dependencies'
4033 ? ' --ignore-deps' : '',
4034 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4035 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
4037 if ($relative_dir eq '.')
4038 {
4039 &push_dist_common ('acconfig.h')
4040 if -f 'acconfig.h';
4041 }
4043 # If we have a configure header, require it.
4044 my $hdr_index = 0;
4045 my @distclean_config;
4046 foreach my $spec (@config_headers)
4047 {
4048 $hdr_index += 1;
4049 # $CONFIG_H_PATH: config.h from top level.
4050 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4051 my $config_h_dir = dirname ($config_h_path);
4053 # If the header is in the current directory we want to build
4054 # the header here. Otherwise, if we're at the topmost
4055 # directory and the header's directory doesn't have a
4056 # Makefile, then we also want to build the header.
4057 if ($relative_dir eq $config_h_dir
4058 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4059 {
4060 my ($cn_sans_dir, $stamp_dir);
4061 if ($relative_dir eq $config_h_dir)
4062 {
4063 $cn_sans_dir = basename ($config_h_path);
4064 $stamp_dir = '';
4065 }
4066 else
4067 {
4068 $cn_sans_dir = $config_h_path;
4069 if ($config_h_dir eq '.')
4070 {
4071 $stamp_dir = '';
4072 }
4073 else
4074 {
4075 $stamp_dir = $config_h_dir . '/';
4076 }
4077 }
4079 # This will also distribute all inputs.
4080 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4082 # Cannot define rebuild rules for filenames with shell variables.
4083 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4085 # Header defined in this directory.
4086 my @files;
4087 if (-f $config_h_path . '.top')
4088 {
4089 push (@files, "$cn_sans_dir.top");
4090 }
4091 if (-f $config_h_path . '.bot')
4092 {
4093 push (@files, "$cn_sans_dir.bot");
4094 }
4096 push_dist_common (@files);
4098 # For now, acconfig.h can only appear in the top srcdir.
4099 if (-f 'acconfig.h')
4100 {
4101 push (@files, '$(top_srcdir)/acconfig.h');
4102 }
4104 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4105 $output_rules .=
4106 file_contents ('remake-hdr',
4107 new Automake::Location,
4108 FILES => "@files",
4109 CONFIG_H => $cn_sans_dir,
4110 CONFIG_HIN => $ins[0],
4111 CONFIG_H_DEPS => "@ins",
4112 CONFIG_H_PATH => $config_h_path,
4113 STAMP => "$stamp");
4115 push @distclean_config, $cn_sans_dir, $stamp;
4116 }
4117 }
4119 $output_rules .= file_contents ('clean-hdr',
4120 new Automake::Location,
4121 FILES => "@distclean_config")
4122 if @distclean_config;
4124 # Distribute and define mkinstalldirs only if it is already present
4125 # in the package, for backward compatibility (some people may still
4126 # use $(mkinstalldirs)).
4127 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4128 if (-f $mkidpath)
4129 {
4130 # Use require_file so that any existing script gets updated
4131 # by --force-missing.
4132 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4133 define_variable ('mkinstalldirs',
4134 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4135 }
4136 else
4137 {
4138 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4139 # at least one argument, and $(mkinstalldirs) used to work
4140 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4141 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4142 }
4144 reject_var ('CONFIG_HEADER',
4145 "`CONFIG_HEADER' is an anachronism; now determined "
4146 . "automatically\nfrom `$configure_ac'");
4148 my @config_h;
4149 foreach my $spec (@config_headers)
4150 {
4151 my ($out, @ins) = split_config_file_spec ($spec);
4152 # Generate CONFIG_HEADER define.
4153 if ($relative_dir eq dirname ($out))
4154 {
4155 push @config_h, basename ($out);
4156 }
4157 else
4158 {
4159 push @config_h, "\$(top_builddir)/$out";
4160 }
4161 }
4162 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4163 if @config_h;
4165 # Now look for other files in this directory which must be remade
4166 # by config.status, and generate rules for them.
4167 my @actual_other_files = ();
4168 # These get cleaned only in a VPATH build.
4169 my @actual_other_vpath_files = ();
4170 foreach my $lfile (@other_input_files)
4171 {
4172 my $file;
4173 my @inputs;
4174 if ($lfile =~ /^([^:]*):(.*)$/)
4175 {
4176 # This is the ":" syntax of AC_OUTPUT.
4177 $file = $1;
4178 @inputs = split (':', $2);
4179 }
4180 else
4181 {
4182 # Normal usage.
4183 $file = $lfile;
4184 @inputs = $file . '.in';
4185 }
4187 # Automake files should not be stored in here, but in %MAKE_LIST.
4188 prog_error ("$lfile in \@other_input_files\n"
4189 . "\@other_input_files = (@other_input_files)")
4190 if -f $file . '.am';
4192 my $local = basename ($file);
4194 # We skip files that aren't in this directory. However, if
4195 # the file's directory does not have a Makefile, and we are
4196 # currently doing `.', then we create a rule to rebuild the
4197 # file in the subdir.
4198 my $fd = dirname ($file);
4199 if ($fd ne $relative_dir)
4200 {
4201 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4202 {
4203 $local = $file;
4204 }
4205 else
4206 {
4207 next;
4208 }
4209 }
4211 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4213 # Cannot output rules for shell variables.
4214 next if (substitute_ac_subst_variables $local) =~ /\$/;
4216 my $condstr = '';
4217 my $cond = $ac_config_files_condition{$lfile};
4218 if (defined $cond)
4219 {
4220 $condstr = $cond->subst_string;
4221 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4222 $ac_config_files_location{$file});
4223 }
4224 $output_rules .= ($condstr . $local . ': '
4225 . '$(top_builddir)/config.status '
4226 . "@rewritten_inputs\n"
4227 . $condstr . "\t"
4228 . 'cd $(top_builddir) && '
4229 . '$(SHELL) ./config.status '
4230 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4231 . '$@'
4232 . "\n");
4233 push (@actual_other_files, $local);
4234 }
4236 # For links we should clean destinations and distribute sources.
4237 foreach my $spec (@config_links)
4238 {
4239 my ($link, $file) = split /:/, $spec;
4240 # Some people do AC_CONFIG_LINKS($computed). We only handle
4241 # the DEST:SRC form.
4242 next unless $file;
4243 my $where = $ac_config_files_location{$link};
4245 # Skip destinations that contain shell variables.
4246 if ((substitute_ac_subst_variables $link) !~ /\$/)
4247 {
4248 # We skip links that aren't in this directory. However, if
4249 # the link's directory does not have a Makefile, and we are
4250 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4251 # in `.'s Makefile.in.
4252 my $local = basename ($link);
4253 my $fd = dirname ($link);
4254 if ($fd ne $relative_dir)
4255 {
4256 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4257 {
4258 $local = $link;
4259 }
4260 else
4261 {
4262 $local = undef;
4263 }
4264 }
4265 if ($file ne $link)
4266 {
4267 push @actual_other_files, $local if $local;
4268 }
4269 else
4270 {
4271 push @actual_other_vpath_files, $local if $local;
4272 }
4273 }
4275 # Do not process sources that contain shell variables.
4276 if ((substitute_ac_subst_variables $file) !~ /\$/)
4277 {
4278 my $fd = dirname ($file);
4280 # We distribute files that are in this directory.
4281 # At the top-level (`.') we also distribute files whose
4282 # directory does not have a Makefile.
4283 if (($fd eq $relative_dir)
4284 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4285 {
4286 # The following will distribute $file as a side-effect when
4287 # it is appropriate (i.e., when $file is not already an output).
4288 # We do not need the result, just the side-effect.
4289 rewrite_inputs_into_dependencies ($link, $file);
4290 }
4291 }
4292 }
4294 # These files get removed by "make distclean".
4295 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4296 @actual_other_files);
4297 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4298 @actual_other_vpath_files);
4299 }
4301 # Handle C headers.
4302 sub handle_headers
4303 {
4304 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4305 'oldinclude', 'pkginclude',
4306 'noinst', 'check');
4307 foreach (@r)
4308 {
4309 next unless $_->[1] =~ /\..*$/;
4310 &saw_extension ($&);
4311 }
4312 }
4314 sub handle_gettext
4315 {
4316 return if ! $seen_gettext || $relative_dir ne '.';
4318 my $subdirs = var 'SUBDIRS';
4320 if (! $subdirs)
4321 {
4322 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4323 return;
4324 }
4326 # Perform some sanity checks to help users get the right setup.
4327 # We disable these tests when po/ doesn't exist in order not to disallow
4328 # unusual gettext setups.
4329 #
4330 # Bruno Haible:
4331 # | The idea is:
4332 # |
4333 # | 1) If a package doesn't have a directory po/ at top level, it
4334 # | will likely have multiple po/ directories in subpackages.
4335 # |
4336 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4337 # | is used without 'external'. It is also useful to warn for the
4338 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4339 # | warnings apply only to the usual layout of packages, therefore
4340 # | they should both be disabled if no po/ directory is found at
4341 # | top level.
4343 if (-d 'po')
4344 {
4345 my @subdirs = $subdirs->value_as_list_recursive;
4347 msg_var ('syntax', $subdirs,
4348 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4349 if ! grep ($_ eq 'po', @subdirs);
4351 # intl/ is not required when AM_GNU_GETTEXT is called with the
4352 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4353 msg_var ('syntax', $subdirs,
4354 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4355 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4356 && ! grep ($_ eq 'intl', @subdirs));
4358 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4359 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4360 msg_var ('syntax', $subdirs,
4361 "`intl' should not be in SUBDIRS when "
4362 . "AM_GNU_GETTEXT([external]) is used")
4363 if ($seen_gettext_external && ! $seen_gettext_intl
4364 && grep ($_ eq 'intl', @subdirs));
4365 }
4367 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4368 }
4370 # Handle footer elements.
4371 sub handle_footer
4372 {
4373 reject_rule ('.SUFFIXES',
4374 "use variable `SUFFIXES', not target `.SUFFIXES'");
4376 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4377 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4378 # anything else, by sticking it right after the default: target.
4379 $output_header .= ".SUFFIXES:\n";
4380 my $suffixes = var 'SUFFIXES';
4381 my @suffixes = Automake::Rule::suffixes;
4382 if (@suffixes || $suffixes)
4383 {
4384 # Make sure SUFFIXES has unique elements. Sort them to ensure
4385 # the output remains consistent. However, $(SUFFIXES) is
4386 # always at the start of the list, unsorted. This is done
4387 # because make will choose rules depending on the ordering of
4388 # suffixes, and this lets the user have some control. Push
4389 # actual suffixes, and not $(SUFFIXES). Some versions of make
4390 # do not like variable substitutions on the .SUFFIXES line.
4391 my @user_suffixes = ($suffixes
4392 ? $suffixes->value_as_list_recursive : ());
4394 my %suffixes = map { $_ => 1 } @suffixes;
4395 delete @suffixes{@user_suffixes};
4397 $output_header .= (".SUFFIXES: "
4398 . join (' ', @user_suffixes, sort keys %suffixes)
4399 . "\n");
4400 }
4402 $output_trailer .= file_contents ('footer', new Automake::Location);
4403 }
4406 # Generate `make install' rules.
4407 sub handle_install ()
4408 {
4409 $output_rules .= &file_contents
4410 ('install',
4411 new Automake::Location,
4412 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4413 ? (" \$(BUILT_SOURCES)\n"
4414 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4415 : ''),
4416 'installdirs-local' => (user_phony_rule 'installdirs-local'
4417 ? ' installdirs-local' : ''),
4418 am__installdirs => variable_value ('am__installdirs') || '');
4419 }
4422 # Deal with all and all-am.
4423 sub handle_all ($)
4424 {
4425 my ($makefile) = @_;
4427 # Output `all-am'.
4429 # Put this at the beginning for the sake of non-GNU makes. This
4430 # is still wrong if these makes can run parallel jobs. But it is
4431 # right enough.
4432 unshift (@all, basename ($makefile));
4434 foreach my $spec (@config_headers)
4435 {
4436 my ($out, @ins) = split_config_file_spec ($spec);
4437 push (@all, basename ($out))
4438 if dirname ($out) eq $relative_dir;
4439 }
4441 # Install `all' hooks.
4442 push (@all, "all-local")
4443 if user_phony_rule "all-local";
4445 &pretty_print_rule ("all-am:", "\t\t", @all);
4446 &depend ('.PHONY', 'all-am', 'all');
4449 # Output `all'.
4451 my @local_headers = ();
4452 push @local_headers, '$(BUILT_SOURCES)'
4453 if var ('BUILT_SOURCES');
4454 foreach my $spec (@config_headers)
4455 {
4456 my ($out, @ins) = split_config_file_spec ($spec);
4457 push @local_headers, basename ($out)
4458 if dirname ($out) eq $relative_dir;
4459 }
4461 if (@local_headers)
4462 {
4463 # We need to make sure config.h is built before we recurse.
4464 # We also want to make sure that built sources are built
4465 # before any ordinary `all' targets are run. We can't do this
4466 # by changing the order of dependencies to the "all" because
4467 # that breaks when using parallel makes. Instead we handle
4468 # things explicitly.
4469 $output_all .= ("all: @local_headers"
4470 . "\n\t"
4471 . '$(MAKE) $(AM_MAKEFLAGS) '
4472 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4473 . "\n\n");
4474 }
4475 else
4476 {
4477 $output_all .= "all: " . (var ('SUBDIRS')
4478 ? 'all-recursive' : 'all-am') . "\n\n";
4479 }
4480 }
4483 # &do_check_merge_target ()
4484 # -------------------------
4485 # Handle check merge target specially.
4486 sub do_check_merge_target ()
4487 {
4488 # Include user-defined local form of target.
4489 push @check_tests, 'check-local'
4490 if user_phony_rule 'check-local';
4492 # In --cygnus mode, check doesn't depend on all.
4493 if (option 'cygnus')
4494 {
4495 # Just run the local check rules.
4496 pretty_print_rule ('check-am:', "\t\t", @check);
4497 }
4498 else
4499 {
4500 # The check target must depend on the local equivalent of
4501 # `all', to ensure all the primary targets are built. Then it
4502 # must build the local check rules.
4503 $output_rules .= "check-am: all-am\n";
4504 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4505 @check)
4506 if @check;
4507 }
4508 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4509 @check_tests)
4510 if @check_tests;
4512 depend '.PHONY', 'check', 'check-am';
4513 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4514 $output_rules .= ("check: "
4515 . (var ('BUILT_SOURCES')
4516 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4517 : '')
4518 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4519 . "\n");
4520 }
4522 # handle_clean ($MAKEFILE)
4523 # ------------------------
4524 # Handle all 'clean' targets.
4525 sub handle_clean ($)
4526 {
4527 my ($makefile) = @_;
4529 # Clean the files listed in user variables if they exist.
4530 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4531 if var ('MOSTLYCLEANFILES');
4532 $clean_files{'$(CLEANFILES)'} = CLEAN
4533 if var ('CLEANFILES');
4534 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4535 if var ('DISTCLEANFILES');
4536 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4537 if var ('MAINTAINERCLEANFILES');
4539 # Built sources are automatically removed by maintainer-clean.
4540 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4541 if var ('BUILT_SOURCES');
4543 # Compute a list of "rm"s to run for each target.
4544 my %rms = (MOSTLY_CLEAN, [],
4545 CLEAN, [],
4546 DIST_CLEAN, [],
4547 MAINTAINER_CLEAN, []);
4549 foreach my $file (keys %clean_files)
4550 {
4551 my $when = $clean_files{$file};
4552 prog_error 'invalid entry in %clean_files'
4553 unless exists $rms{$when};
4555 my $rm = "rm -f $file";
4556 # If file is a variable, make sure when don't call `rm -f' without args.
4557 $rm ="test -z \"$file\" || $rm"
4558 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4560 push @{$rms{$when}}, "\t-$rm\n";
4561 }
4563 $output_rules .= &file_contents
4564 ('clean',
4565 new Automake::Location,
4566 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4567 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4568 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4569 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4570 MAKEFILE => basename $makefile,
4571 );
4572 }
4575 # &target_cmp ($A, $B)
4576 # --------------------
4577 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4578 # other `.TARGETS' be last.
4579 sub target_cmp
4580 {
4581 return 0 if $a eq $b;
4583 my $a1 = substr ($a, 0, 1);
4584 my $b1 = substr ($b, 0, 1);
4585 if ($a1 ne $b1)
4586 {
4587 return -1 if $b1 eq '.';
4588 return 1 if $a1 eq '.';
4589 }
4590 return $a cmp $b;
4591 }
4594 # &handle_factored_dependencies ()
4595 # --------------------------------
4596 # Handle everything related to gathered targets.
4597 sub handle_factored_dependencies
4598 {
4599 # Reject bad hooks.
4600 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4601 'uninstall-exec-local', 'uninstall-exec-hook',
4602 'uninstall-dvi-local',
4603 'uninstall-html-local',
4604 'uninstall-info-local',
4605 'uninstall-pdf-local',
4606 'uninstall-ps-local')
4607 {
4608 my $x = $utarg;
4609 $x =~ s/-.*-/-/;
4610 reject_rule ($utarg, "use `$x', not `$utarg'");
4611 }
4613 reject_rule ('install-local',
4614 "use `install-data-local' or `install-exec-local', "
4615 . "not `install-local'");
4617 reject_rule ('install-hook',
4618 "use `install-data-hook' or `install-exec-hook', "
4619 . "not `install-hook'");
4621 # Install the -local hooks.
4622 foreach (keys %dependencies)
4623 {
4624 # Hooks are installed on the -am targets.
4625 s/-am$// or next;
4626 depend ("$_-am", "$_-local")
4627 if user_phony_rule "$_-local";
4628 }
4630 # Install the -hook hooks.
4631 # FIXME: Why not be as liberal as we are with -local hooks?
4632 foreach ('install-exec', 'install-data', 'uninstall')
4633 {
4634 if (user_phony_rule "$_-hook")
4635 {
4636 depend ('.MAKE', "$_-am");
4637 register_action("$_-am",
4638 ("\t\@\$(NORMAL_INSTALL)\n"
4639 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4640 }
4641 }
4643 # All the required targets are phony.
4644 depend ('.PHONY', keys %required_targets);
4646 # Actually output gathered targets.
4647 foreach (sort target_cmp keys %dependencies)
4648 {
4649 # If there is nothing about this guy, skip it.
4650 next
4651 unless (@{$dependencies{$_}}
4652 || $actions{$_}
4653 || $required_targets{$_});
4655 # Define gathered targets in undefined conditions.
4656 # FIXME: Right now we must handle .PHONY as an exception,
4657 # because people write things like
4658 # .PHONY: myphonytarget
4659 # to append dependencies. This would not work if Automake
4660 # refrained from defining its own .PHONY target as it does
4661 # with other overridden targets.
4662 # Likewise for `.MAKE'.
4663 my @undefined_conds = (TRUE,);
4664 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4665 {
4666 @undefined_conds =
4667 Automake::Rule::define ($_, 'internal',
4668 RULE_AUTOMAKE, TRUE, INTERNAL);
4669 }
4670 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4671 foreach my $cond (@undefined_conds)
4672 {
4673 my $condstr = $cond->subst_string;
4674 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4675 $output_rules .= $actions{$_} if defined $actions{$_};
4676 $output_rules .= "\n";
4677 }
4678 }
4679 }
4682 # &handle_tests_dejagnu ()
4683 # ------------------------
4684 sub handle_tests_dejagnu
4685 {
4686 push (@check_tests, 'check-DEJAGNU');
4687 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4688 }
4691 # Handle TESTS variable and other checks.
4692 sub handle_tests
4693 {
4694 if (option 'dejagnu')
4695 {
4696 &handle_tests_dejagnu;
4697 }
4698 else
4699 {
4700 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4701 {
4702 reject_var ($c, "`$c' defined but `dejagnu' not in "
4703 . "`AUTOMAKE_OPTIONS'");
4704 }
4705 }
4707 if (var ('TESTS'))
4708 {
4709 push (@check_tests, 'check-TESTS');
4710 $output_rules .= &file_contents ('check', new Automake::Location,
4711 COLOR => !! option 'color-tests');
4713 # Tests that are known programs should have $(EXEEXT) appended.
4714 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4715 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4716 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4717 if (var ('XFAIL_TESTS'));
4718 }
4719 }
4721 # Handle Emacs Lisp.
4722 sub handle_emacs_lisp
4723 {
4724 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4725 'lisp', 'noinst');
4727 return if ! @elfiles;
4729 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4730 map { $_->[1] } @elfiles);
4731 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4732 '$(am__ELFILES:.el=.elc)');
4733 # This one can be overridden by users.
4734 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4736 push @all, '$(ELCFILES)';
4738 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4739 'EMACS', 'lispdir');
4740 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4741 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4742 }
4744 # Handle Python
4745 sub handle_python
4746 {
4747 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4748 'noinst');
4749 return if ! @pyfiles;
4751 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4752 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4753 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4754 }
4756 # Handle Java.
4757 sub handle_java
4758 {
4759 my @sourcelist = &am_install_var ('-candist',
4760 'java', 'JAVA',
4761 'java', 'noinst', 'check');
4762 return if ! @sourcelist;
4764 my @prefix = am_primary_prefixes ('JAVA', 1,
4765 'java', 'noinst', 'check');
4767 my $dir;
4768 foreach my $curs (@prefix)
4769 {
4770 next
4771 if $curs eq 'EXTRA';
4773 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4774 if defined $dir;
4775 $dir = $curs;
4776 }
4779 push (@all, 'class' . $dir . '.stamp');
4780 }
4783 # Handle some of the minor options.
4784 sub handle_minor_options
4785 {
4786 if (option 'readme-alpha')
4787 {
4788 if ($relative_dir eq '.')
4789 {
4790 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4791 {
4792 msg ('error-gnits', $package_version_location,
4793 "version `$package_version' doesn't follow " .
4794 "Gnits standards");
4795 }
4796 if (defined $1 && -f 'README-alpha')
4797 {
4798 # This means we have an alpha release. See
4799 # GNITS_VERSION_PATTERN for details.
4800 push_dist_common ('README-alpha');
4801 }
4802 }
4803 }
4804 }
4806 ################################################################
4808 # ($OUTPUT, @INPUTS)
4809 # &split_config_file_spec ($SPEC)
4810 # -------------------------------
4811 # Decode the Autoconf syntax for config files (files, headers, links
4812 # etc.).
4813 sub split_config_file_spec ($)
4814 {
4815 my ($spec) = @_;
4816 my ($output, @inputs) = split (/:/, $spec);
4818 push @inputs, "$output.in"
4819 unless @inputs;
4821 return ($output, @inputs);
4822 }
4824 # $input
4825 # locate_am (@POSSIBLE_SOURCES)
4826 # -----------------------------
4827 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4828 # This functions returns the first *.in file for which a *.am exists.
4829 # It returns undef otherwise.
4830 sub locate_am (@)
4831 {
4832 my (@rest) = @_;
4833 my $input;
4834 foreach my $file (@rest)
4835 {
4836 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4837 {
4838 $input = $file;
4839 last;
4840 }
4841 }
4842 return $input;
4843 }
4845 my %make_list;
4847 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4848 # ---------------------------------------------------
4849 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4850 # (or AC_OUTPUT).
4851 sub scan_autoconf_config_files ($$)
4852 {
4853 my ($where, $config_files) = @_;
4855 # Look at potential Makefile.am's.
4856 foreach (split ' ', $config_files)
4857 {
4858 # Must skip empty string for Perl 4.
4859 next if $_ eq "\\" || $_ eq '';
4861 # Handle $local:$input syntax.
4862 my ($local, @rest) = split (/:/);
4863 @rest = ("$local.in",) unless @rest;
4864 msg ('portability', $where,
4865 "Omit leading `./' from config file names such as `$local',"
4866 . "\nas not all make implementations treat `file' and `./file' equally.")
4867 if ($local =~ /^\.\//);
4868 my $input = locate_am @rest;
4869 if ($input)
4870 {
4871 # We have a file that automake should generate.
4872 $make_list{$input} = join (':', ($local, @rest));
4873 }
4874 else
4875 {
4876 # We have a file that automake should cause to be
4877 # rebuilt, but shouldn't generate itself.
4878 push (@other_input_files, $_);
4879 }
4880 $ac_config_files_location{$local} = $where;
4881 $ac_config_files_condition{$local} =
4882 new Automake::Condition (@cond_stack)
4883 if (@cond_stack);
4884 }
4885 }
4888 # &scan_autoconf_traces ($FILENAME)
4889 # ---------------------------------
4890 sub scan_autoconf_traces ($)
4891 {
4892 my ($filename) = @_;
4894 # Macros to trace, with their minimal number of arguments.
4895 #
4896 # IMPORTANT: If you add a macro here, you should also add this macro
4897 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4898 my %traced = (
4899 AC_CANONICAL_BUILD => 0,
4900 AC_CANONICAL_HOST => 0,
4901 AC_CANONICAL_TARGET => 0,
4902 AC_CONFIG_AUX_DIR => 1,
4903 AC_CONFIG_FILES => 1,
4904 AC_CONFIG_HEADERS => 1,
4905 AC_CONFIG_LIBOBJ_DIR => 1,
4906 AC_CONFIG_LINKS => 1,
4907 AC_FC_SRCEXT => 1,
4908 AC_INIT => 0,
4909 AC_LIBSOURCE => 1,
4910 AC_REQUIRE_AUX_FILE => 1,
4911 AC_SUBST_TRACE => 1,
4912 AM_AUTOMAKE_VERSION => 1,
4913 AM_CONDITIONAL => 2,
4914 AM_ENABLE_MULTILIB => 0,
4915 AM_GNU_GETTEXT => 0,
4916 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
4917 AM_INIT_AUTOMAKE => 0,
4918 AM_MAINTAINER_MODE => 0,
4919 AM_PROG_CC_C_O => 0,
4920 _AM_SUBST_NOTMAKE => 1,
4921 _AM_COND_IF => 1,
4922 _AM_COND_ELSE => 1,
4923 _AM_COND_ENDIF => 1,
4924 LT_SUPPORTED_TAG => 1,
4925 _LT_AC_TAGCONFIG => 0,
4926 m4_include => 1,
4927 m4_sinclude => 1,
4928 sinclude => 1,
4929 );
4931 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4933 # Use a separator unlikely to be used, not `:', the default, which
4934 # has a precise meaning for AC_CONFIG_FILES and so on.
4935 $traces .= join (' ',
4936 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
4937 (keys %traced));
4939 my $tracefh = new Automake::XFile ("$traces $filename |");
4940 verb "reading $traces";
4942 @cond_stack = ();
4943 my $where;
4945 while ($_ = $tracefh->getline)
4946 {
4947 chomp;
4948 my ($here, $depth, @args) = split (/::/);
4949 $where = new Automake::Location $here;
4950 my $macro = $args[0];
4952 prog_error ("unrequested trace `$macro'")
4953 unless exists $traced{$macro};
4955 # Skip and diagnose malformed calls.
4956 if ($#args < $traced{$macro})
4957 {
4958 msg ('syntax', $where, "not enough arguments for $macro");
4959 next;
4960 }
4962 # Alphabetical ordering please.
4963 if ($macro eq 'AC_CANONICAL_BUILD')
4964 {
4965 if ($seen_canonical <= AC_CANONICAL_BUILD)
4966 {
4967 $seen_canonical = AC_CANONICAL_BUILD;
4968 $canonical_location = $where;
4969 }
4970 }
4971 elsif ($macro eq 'AC_CANONICAL_HOST')
4972 {
4973 if ($seen_canonical <= AC_CANONICAL_HOST)
4974 {
4975 $seen_canonical = AC_CANONICAL_HOST;
4976 $canonical_location = $where;
4977 }
4978 }
4979 elsif ($macro eq 'AC_CANONICAL_TARGET')
4980 {
4981 $seen_canonical = AC_CANONICAL_TARGET;
4982 $canonical_location = $where;
4983 }
4984 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4985 {
4986 if ($seen_init_automake)
4987 {
4988 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4989 . "AM_INIT_AUTOMAKE...", partial => 1);
4990 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4991 }
4992 $config_aux_dir = $args[1];
4993 $config_aux_dir_set_in_configure_ac = 1;
4994 $relative_dir = '.';
4995 check_directory ($config_aux_dir, $where);
4996 }
4997 elsif ($macro eq 'AC_CONFIG_FILES')
4998 {
4999 # Look at potential Makefile.am's.
5000 scan_autoconf_config_files ($where, $args[1]);
5001 }
5002 elsif ($macro eq 'AC_CONFIG_HEADERS')
5003 {
5004 foreach my $spec (split (' ', $args[1]))
5005 {
5006 my ($dest, @src) = split (':', $spec);
5007 $ac_config_files_location{$dest} = $where;
5008 push @config_headers, $spec;
5009 }
5010 }
5011 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5012 {
5013 $config_libobj_dir = $args[1];
5014 $relative_dir = '.';
5015 check_directory ($config_libobj_dir, $where);
5016 }
5017 elsif ($macro eq 'AC_CONFIG_LINKS')
5018 {
5019 foreach my $spec (split (' ', $args[1]))
5020 {
5021 my ($dest, $src) = split (':', $spec);
5022 $ac_config_files_location{$dest} = $where;
5023 push @config_links, $spec;
5024 }
5025 }
5026 elsif ($macro eq 'AC_FC_SRCEXT')
5027 {
5028 my $suffix = $args[1];
5029 # These flags are used as %SOURCEFLAG% in depend2.am,
5030 # where the trailing space is important.
5031 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5032 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5033 }
5034 elsif ($macro eq 'AC_INIT')
5035 {
5036 if (defined $args[2])
5037 {
5038 $package_version = $args[2];
5039 $package_version_location = $where;
5040 }
5041 }
5042 elsif ($macro eq 'AC_LIBSOURCE')
5043 {
5044 $libsources{$args[1]} = $here;
5045 }
5046 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5047 {
5048 # Only remember the first time a file is required.
5049 $required_aux_file{$args[1]} = $where
5050 unless exists $required_aux_file{$args[1]};
5051 }
5052 elsif ($macro eq 'AC_SUBST_TRACE')
5053 {
5054 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5055 # AC_SUBST(5), then too bad.
5056 $configure_vars{$args[1]} = $where
5057 if $args[1] =~ /^\w+$/;
5058 }
5059 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5060 {
5061 error ($where,
5062 "version mismatch. This is Automake $VERSION,\n" .
5063 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5064 "comes from Automake $args[1]. You should recreate\n" .
5065 "aclocal.m4 with aclocal and run automake again.\n",
5066 # $? = 63 is used to indicate version mismatch to missing.
5067 exit_code => 63)
5068 if $VERSION ne $args[1];
5070 $seen_automake_version = 1;
5071 }
5072 elsif ($macro eq 'AM_CONDITIONAL')
5073 {
5074 $configure_cond{$args[1]} = $where;
5075 }
5076 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5077 {
5078 $seen_multilib = $where;
5079 }
5080 elsif ($macro eq 'AM_GNU_GETTEXT')
5081 {
5082 $seen_gettext = $where;
5083 $ac_gettext_location = $where;
5084 $seen_gettext_external = grep ($_ eq 'external', @args);
5085 }
5086 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5087 {
5088 $seen_gettext_intl = $where;
5089 }
5090 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5091 {
5092 $seen_init_automake = $where;
5093 if (defined $args[2])
5094 {
5095 $package_version = $args[2];
5096 $package_version_location = $where;
5097 }
5098 elsif (defined $args[1])
5099 {
5100 exit $exit_code
5101 if (process_global_option_list ($where,
5102 split (' ', $args[1])));
5103 }
5104 }
5105 elsif ($macro eq 'AM_MAINTAINER_MODE')
5106 {
5107 $seen_maint_mode = $where;
5108 }
5109 elsif ($macro eq 'AM_PROG_CC_C_O')
5110 {
5111 $seen_cc_c_o = $where;
5112 }
5113 elsif ($macro eq '_AM_COND_IF')
5114 {
5115 cond_stack_if ('', $args[1], $where);
5116 error ($where, "missing m4 quoting, macro depth $depth")
5117 if ($depth != 1);
5118 }
5119 elsif ($macro eq '_AM_COND_ELSE')
5120 {
5121 cond_stack_else ('!', $args[1], $where);
5122 error ($where, "missing m4 quoting, macro depth $depth")
5123 if ($depth != 1);
5124 }
5125 elsif ($macro eq '_AM_COND_ENDIF')
5126 {
5127 cond_stack_endif (undef, undef, $where);
5128 error ($where, "missing m4 quoting, macro depth $depth")
5129 if ($depth != 1);
5130 }
5131 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5132 {
5133 $ignored_configure_vars{$args[1]} = $where;
5134 }
5135 elsif ($macro eq 'm4_include'
5136 || $macro eq 'm4_sinclude'
5137 || $macro eq 'sinclude')
5138 {
5139 # Skip missing `sinclude'd files.
5140 next if $macro ne 'm4_include' && ! -f $args[1];
5142 # Some modified versions of Autoconf don't use
5143 # frozen files. Consequently it's possible that we see all
5144 # m4_include's performed during Autoconf's startup.
5145 # Obviously we don't want to distribute Autoconf's files
5146 # so we skip absolute filenames here.
5147 push @configure_deps, '$(top_srcdir)/' . $args[1]
5148 unless $here =~ m,^(?:\w:)?[\\/],;
5149 # Keep track of the greatest timestamp.
5150 if (-e $args[1])
5151 {
5152 my $mtime = mtime $args[1];
5153 $configure_deps_greatest_timestamp = $mtime
5154 if $mtime > $configure_deps_greatest_timestamp;
5155 }
5156 }
5157 elsif ($macro eq 'LT_SUPPORTED_TAG')
5158 {
5159 $libtool_tags{$args[1]} = 1;
5160 $libtool_new_api = 1;
5161 }
5162 elsif ($macro eq '_LT_AC_TAGCONFIG')
5163 {
5164 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5165 # We use it to detect whether tags are supported. Our
5166 # preferred interface is LT_SUPPORTED_TAG, but it was
5167 # introduced in Libtool 1.6.
5168 if (0 == keys %libtool_tags)
5169 {
5170 # Hardcode the tags supported by Libtool 1.5.
5171 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5172 }
5173 }
5174 }
5176 error ($where, "condition stack not properly closed")
5177 if (@cond_stack);
5179 $tracefh->close;
5180 }
5183 # &scan_autoconf_files ()
5184 # -----------------------
5185 # Check whether we use `configure.ac' or `configure.in'.
5186 # Scan it (and possibly `aclocal.m4') for interesting things.
5187 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5188 sub scan_autoconf_files ()
5189 {
5190 # Reinitialize libsources here. This isn't really necessary,
5191 # since we currently assume there is only one configure.ac. But
5192 # that won't always be the case.
5193 %libsources = ();
5195 # Keep track of the youngest configure dependency.
5196 $configure_deps_greatest_timestamp = mtime $configure_ac;
5197 if (-e 'aclocal.m4')
5198 {
5199 my $mtime = mtime 'aclocal.m4';
5200 $configure_deps_greatest_timestamp = $mtime
5201 if $mtime > $configure_deps_greatest_timestamp;
5202 }
5204 scan_autoconf_traces ($configure_ac);
5206 @configure_input_files = sort keys %make_list;
5207 # Set input and output files if not specified by user.
5208 if (! @input_files)
5209 {
5210 @input_files = @configure_input_files;
5211 %output_files = %make_list;
5212 }
5215 if (! $seen_init_automake)
5216 {
5217 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5218 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5219 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5220 . "and that aclocal.m4 was recently regenerated "
5221 . "(using aclocal).");
5222 }
5223 else
5224 {
5225 if (! $seen_automake_version)
5226 {
5227 if (-f 'aclocal.m4')
5228 {
5229 error ($seen_init_automake,
5230 "your implementation of AM_INIT_AUTOMAKE comes from " .
5231 "an\nold Automake version. You should recreate " .
5232 "aclocal.m4\nwith aclocal and run automake again.\n",
5233 # $? = 63 is used to indicate version mismatch to missing.
5234 exit_code => 63);
5235 }
5236 else
5237 {
5238 error ($seen_init_automake,
5239 "no proper implementation of AM_INIT_AUTOMAKE was " .
5240 "found,\nprobably because aclocal.m4 is missing...\n" .
5241 "You should run aclocal to create this file, then\n" .
5242 "run automake again.\n");
5243 }
5244 }
5245 }
5247 locate_aux_dir ();
5249 # Reorder @input_files so that the Makefile that distributes aux
5250 # files is processed last. This is important because each directory
5251 # can require auxiliary scripts and we should wait until they have
5252 # been installed before distributing them.
5254 # The Makefile.in that distribute the aux files is the one in
5255 # $config_aux_dir or the top-level Makefile.
5256 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5257 my @new_input_files = ();
5258 while (@input_files)
5259 {
5260 my $in = pop @input_files;
5261 my @ins = split (/:/, $output_files{$in});
5262 if (dirname ($ins[0]) eq $auxdirdist)
5263 {
5264 push @new_input_files, $in;
5265 $automake_will_process_aux_dir = 1;
5266 }
5267 else
5268 {
5269 unshift @new_input_files, $in;
5270 }
5271 }
5272 @input_files = @new_input_files;
5274 # If neither the auxdir/Makefile nor the ./Makefile are generated
5275 # by Automake, we won't distribute the aux files anyway. Assume
5276 # the user know what (s)he does, and pretend we will distribute
5277 # them to disable the error in require_file_internal.
5278 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5280 # Look for some files we need. Always check for these. This
5281 # check must be done for every run, even those where we are only
5282 # looking at a subdir Makefile. We must set relative_dir for
5283 # maybe_push_required_file to work.
5284 # Sort the files for stable verbose output.
5285 $relative_dir = '.';
5286 foreach my $file (sort keys %required_aux_file)
5287 {
5288 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5289 }
5290 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5291 if -f $config_aux_dir . '/install.sh';
5293 # Preserve dist_common for later.
5294 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5296 }
5298 ################################################################
5300 # Set up for Cygnus mode.
5301 sub check_cygnus
5302 {
5303 my $cygnus = option 'cygnus';
5304 return unless $cygnus;
5306 set_strictness ('foreign');
5307 set_option ('no-installinfo', $cygnus);
5308 set_option ('no-dependencies', $cygnus);
5309 set_option ('no-dist', $cygnus);
5311 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5312 if !$seen_maint_mode;
5313 }
5315 # Do any extra checking for GNU standards.
5316 sub check_gnu_standards
5317 {
5318 if ($relative_dir eq '.')
5319 {
5320 # In top level (or only) directory.
5321 require_file ("$am_file.am", GNU,
5322 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5324 # Accept one of these three licenses; default to COPYING.
5325 # Make sure we do not overwrite an existing license.
5326 my $license;
5327 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5328 {
5329 if (-f $_)
5330 {
5331 $license = $_;
5332 last;
5333 }
5334 }
5335 require_file ("$am_file.am", GNU, 'COPYING')
5336 unless $license;
5337 }
5339 for my $opt ('no-installman', 'no-installinfo')
5340 {
5341 msg ('error-gnu', option $opt,
5342 "option `$opt' disallowed by GNU standards")
5343 if option $opt;
5344 }
5345 }
5347 # Do any extra checking for GNITS standards.
5348 sub check_gnits_standards
5349 {
5350 if ($relative_dir eq '.')
5351 {
5352 # In top level (or only) directory.
5353 require_file ("$am_file.am", GNITS, 'THANKS');
5354 }
5355 }
5357 ################################################################
5358 #
5359 # Functions to handle files of each language.
5361 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5362 # simple formula: Return value is LANG_SUBDIR if the resulting object
5363 # file should be in a subdir if the source file is, LANG_PROCESS if
5364 # file is to be dealt with, LANG_IGNORE otherwise.
5366 # Much of the actual processing is handled in
5367 # handle_single_transform. These functions exist so that
5368 # auxiliary information can be recorded for a later cleanup pass.
5369 # Note that the calls to these functions are computed, so don't bother
5370 # searching for their precise names in the source.
5372 # This is just a convenience function that can be used to determine
5373 # when a subdir object should be used.
5374 sub lang_sub_obj
5375 {
5376 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5377 }
5379 # Rewrite a single C source file.
5380 sub lang_c_rewrite
5381 {
5382 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5384 if (option 'ansi2knr' && $base =~ /_$/)
5385 {
5386 # FIXME: include line number in error.
5387 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5388 }
5390 my $r = LANG_PROCESS;
5391 if (option 'subdir-objects')
5392 {
5393 $r = LANG_SUBDIR;
5394 if ($directory && $directory ne '.')
5395 {
5396 $base = $directory . '/' . $base;
5398 # libtool is always able to put the object at the proper place,
5399 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5400 msg_var ('portability', $var,
5401 "compiling `$base.c' in subdir requires "
5402 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5403 uniq_scope => US_GLOBAL,
5404 uniq_part => 'AM_PROG_CC_C_O subdir')
5405 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5406 }
5408 # In this case we already have the directory information, so
5409 # don't add it again.
5410 $de_ansi_files{$base} = '';
5411 }
5412 else
5413 {
5414 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5415 ? ''
5416 : "$directory/");
5417 }
5419 if (! $seen_cc_c_o
5420 && $have_per_exec_flags
5421 && ! option 'subdir-objects'
5422 && $nonansi_obj ne '.lo')
5423 {
5424 msg_var ('portability',
5425 $var, "compiling `$base.c' with per-target flags requires "
5426 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5427 uniq_scope => US_GLOBAL,
5428 uniq_part => 'AM_PROG_CC_C_O per-target')
5429 }
5431 return $r;
5432 }
5434 # Rewrite a single C++ source file.
5435 sub lang_cxx_rewrite
5436 {
5437 return &lang_sub_obj;
5438 }
5440 # Rewrite a single header file.
5441 sub lang_header_rewrite
5442 {
5443 # Header files are simply ignored.
5444 return LANG_IGNORE;
5445 }
5447 # Rewrite a single yacc file.
5448 sub lang_yacc_rewrite
5449 {
5450 my ($directory, $base, $ext) = @_;
5452 my $r = &lang_sub_obj;
5453 (my $newext = $ext) =~ tr/y/c/;
5454 return ($r, $newext);
5455 }
5457 # Rewrite a single yacc++ file.
5458 sub lang_yaccxx_rewrite
5459 {
5460 my ($directory, $base, $ext) = @_;
5462 my $r = &lang_sub_obj;
5463 (my $newext = $ext) =~ tr/y/c/;
5464 return ($r, $newext);
5465 }
5467 # Rewrite a single lex file.
5468 sub lang_lex_rewrite
5469 {
5470 my ($directory, $base, $ext) = @_;
5472 my $r = &lang_sub_obj;
5473 (my $newext = $ext) =~ tr/l/c/;
5474 return ($r, $newext);
5475 }
5477 # Rewrite a single lex++ file.
5478 sub lang_lexxx_rewrite
5479 {
5480 my ($directory, $base, $ext) = @_;
5482 my $r = &lang_sub_obj;
5483 (my $newext = $ext) =~ tr/l/c/;
5484 return ($r, $newext);
5485 }
5487 # Rewrite a single assembly file.
5488 sub lang_asm_rewrite
5489 {
5490 return &lang_sub_obj;
5491 }
5493 # Rewrite a single preprocessed assembly file.
5494 sub lang_cppasm_rewrite
5495 {
5496 return &lang_sub_obj;
5497 }
5499 # Rewrite a single Fortran 77 file.
5500 sub lang_f77_rewrite
5501 {
5502 return &lang_sub_obj;
5503 }
5505 # Rewrite a single Fortran file.
5506 sub lang_fc_rewrite
5507 {
5508 return &lang_sub_obj;
5509 }
5511 # Rewrite a single preprocessed Fortran file.
5512 sub lang_ppfc_rewrite
5513 {
5514 return &lang_sub_obj;
5515 }
5517 # Rewrite a single preprocessed Fortran 77 file.
5518 sub lang_ppf77_rewrite
5519 {
5520 return &lang_sub_obj;
5521 }
5523 # Rewrite a single ratfor file.
5524 sub lang_ratfor_rewrite
5525 {
5526 return &lang_sub_obj;
5527 }
5529 # Rewrite a single Objective C file.
5530 sub lang_objc_rewrite
5531 {
5532 return &lang_sub_obj;
5533 }
5535 # Rewrite a single Unified Parallel C file.
5536 sub lang_upc_rewrite
5537 {
5538 return &lang_sub_obj;
5539 }
5541 # Rewrite a single Java file.
5542 sub lang_java_rewrite
5543 {
5544 return LANG_SUBDIR;
5545 }
5547 # The lang_X_finish functions are called after all source file
5548 # processing is done. Each should handle defining rules for the
5549 # language, etc. A finish function is only called if a source file of
5550 # the appropriate type has been seen.
5552 sub lang_c_finish
5553 {
5554 # Push all libobjs files onto de_ansi_files. We actually only
5555 # push files which exist in the current directory, and which are
5556 # genuine source files.
5557 foreach my $file (keys %libsources)
5558 {
5559 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5560 {
5561 $de_ansi_files{$1} = ''
5562 }
5563 }
5565 if (option 'ansi2knr' && keys %de_ansi_files)
5566 {
5567 # Make all _.c files depend on their corresponding .c files.
5568 my @objects;
5569 foreach my $base (sort keys %de_ansi_files)
5570 {
5571 # Each _.c file must depend on ansi2knr; otherwise it
5572 # might be used in a parallel build before it is built.
5573 # We need to support files in the srcdir and in the build
5574 # dir (because these files might be auto-generated. But
5575 # we can't use $< -- some makes only define $< during a
5576 # suffix rule.
5577 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5578 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5579 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5580 . '`if test -f $(srcdir)/' . $ansfile
5581 . '; then echo $(srcdir)/' . $ansfile
5582 . '; else echo ' . $ansfile . '; fi` '
5583 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5584 . '| $(ANSI2KNR) > $@'
5585 # If ansi2knr fails then we shouldn't
5586 # create the _.c file
5587 . " || rm -f \$\@\n");
5588 push (@objects, $base . '_.$(OBJEXT)');
5589 push (@objects, $base . '_.lo')
5590 if var ('LIBTOOL');
5592 # Explicitly clean the _.c files if they are in a
5593 # subdirectory. (In the current directory they get erased
5594 # by a `rm -f *_.c' rule.)
5595 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5596 if dirname ($base) ne '.';
5597 }
5599 # Make all _.o (and _.lo) files depend on ansi2knr.
5600 # Use a sneaky little hack to make it print nicely.
5601 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5602 }
5603 }
5605 # This is a yacc helper which is called whenever we have decided to
5606 # compile a yacc file.
5607 sub lang_yacc_target_hook
5608 {
5609 my ($self, $aggregate, $output, $input, %transform) = @_;
5611 my $flag = $aggregate . "_YFLAGS";
5612 my $flagvar = var $flag;
5613 my $YFLAGSvar = var 'YFLAGS';
5614 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5615 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5616 {
5617 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5618 my $header = $output_base . '.h';
5620 # Found a `-d' that applies to the compilation of this file.
5621 # Add a dependency for the generated header file, and arrange
5622 # for that file to be included in the distribution.
5623 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5624 RULE_AUTOMAKE, TRUE,
5625 INTERNAL))
5626 {
5627 my $condstr = $cond->subst_string;
5628 $output_rules .=
5629 "$condstr${header}: $output\n"
5630 # Recover from removal of $header
5631 . "$condstr\t\@if test ! -f \$@; then \\\n"
5632 . "$condstr\t rm -f $output; \\\n"
5633 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
5634 . "$condstr\telse :; fi\n";
5635 }
5636 # Distribute the generated file, unless its .y source was
5637 # listed in a nodist_ variable. (&handle_source_transform
5638 # will set DIST_SOURCE.)
5639 &push_dist_common ($header)
5640 if $transform{'DIST_SOURCE'};
5642 # If the files are built in the build directory, then we want
5643 # to remove them with `make clean'. If they are in srcdir
5644 # they shouldn't be touched. However, we can't determine this
5645 # statically, and the GNU rules say that yacc/lex output files
5646 # should be removed by maintainer-clean. So that's what we
5647 # do.
5648 $clean_files{$header} = MAINTAINER_CLEAN;
5649 }
5650 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5651 # See the comment above for $HEADER.
5652 $clean_files{$output} = MAINTAINER_CLEAN;
5653 }
5655 # This is a lex helper which is called whenever we have decided to
5656 # compile a lex file.
5657 sub lang_lex_target_hook
5658 {
5659 my ($self, $aggregate, $output, $input) = @_;
5660 # If the files are built in the build directory, then we want to
5661 # remove them with `make clean'. If they are in srcdir they
5662 # shouldn't be touched. However, we can't determine this
5663 # statically, and the GNU rules say that yacc/lex output files
5664 # should be removed by maintainer-clean. So that's what we do.
5665 $clean_files{$output} = MAINTAINER_CLEAN;
5666 }
5668 # This is a helper for both lex and yacc.
5669 sub yacc_lex_finish_helper
5670 {
5671 return if defined $language_scratch{'lex-yacc-done'};
5672 $language_scratch{'lex-yacc-done'} = 1;
5674 # FIXME: for now, no line number.
5675 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5676 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5677 }
5679 sub lang_yacc_finish
5680 {
5681 return if defined $language_scratch{'yacc-done'};
5682 $language_scratch{'yacc-done'} = 1;
5684 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5686 yacc_lex_finish_helper;
5687 }
5690 sub lang_lex_finish
5691 {
5692 return if defined $language_scratch{'lex-done'};
5693 $language_scratch{'lex-done'} = 1;
5695 yacc_lex_finish_helper;
5696 }
5699 # Given a hash table of linker names, pick the name that has the most
5700 # precedence. This is lame, but something has to have global
5701 # knowledge in order to eliminate the conflict. Add more linkers as
5702 # required.
5703 sub resolve_linker
5704 {
5705 my (%linkers) = @_;
5707 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5708 {
5709 return $l if defined $linkers{$l};
5710 }
5711 return 'LINK';
5712 }
5714 # Called to indicate that an extension was used.
5715 sub saw_extension
5716 {
5717 my ($ext) = @_;
5718 if (! defined $extension_seen{$ext})
5719 {
5720 $extension_seen{$ext} = 1;
5721 }
5722 else
5723 {
5724 ++$extension_seen{$ext};
5725 }
5726 }
5728 # Return the number of files seen for a given language. Knows about
5729 # special cases we care about. FIXME: this is hideous. We need
5730 # something that involves real language objects. For instance yacc
5731 # and yaccxx could both derive from a common yacc class which would
5732 # know about the strange ylwrap requirement. (Or better yet we could
5733 # just not support legacy yacc!)
5734 sub count_files_for_language
5735 {
5736 my ($name) = @_;
5738 my @names;
5739 if ($name eq 'yacc' || $name eq 'yaccxx')
5740 {
5741 @names = ('yacc', 'yaccxx');
5742 }
5743 elsif ($name eq 'lex' || $name eq 'lexxx')
5744 {
5745 @names = ('lex', 'lexxx');
5746 }
5747 else
5748 {
5749 @names = ($name);
5750 }
5752 my $r = 0;
5753 foreach $name (@names)
5754 {
5755 my $lang = $languages{$name};
5756 foreach my $ext (@{$lang->extensions})
5757 {
5758 $r += $extension_seen{$ext}
5759 if defined $extension_seen{$ext};
5760 }
5761 }
5763 return $r
5764 }
5766 # Called to ask whether source files have been seen . If HEADERS is 1,
5767 # headers can be included.
5768 sub saw_sources_p
5769 {
5770 my ($headers) = @_;
5772 # count all the sources
5773 my $count = 0;
5774 foreach my $val (values %extension_seen)
5775 {
5776 $count += $val;
5777 }
5779 if (!$headers)
5780 {
5781 $count -= count_files_for_language ('header');
5782 }
5784 return $count > 0;
5785 }
5788 # register_language (%ATTRIBUTE)
5789 # ------------------------------
5790 # Register a single language.
5791 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5792 sub register_language (%)
5793 {
5794 my (%option) = @_;
5796 # Set the defaults.
5797 $option{'ansi'} = 0
5798 unless defined $option{'ansi'};
5799 $option{'autodep'} = 'no'
5800 unless defined $option{'autodep'};
5801 $option{'linker'} = ''
5802 unless defined $option{'linker'};
5803 $option{'flags'} = []
5804 unless defined $option{'flags'};
5805 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5806 unless defined $option{'output_extensions'};
5807 $option{'nodist_specific'} = 0
5808 unless defined $option{'nodist_specific'};
5810 my $lang = new Language (%option);
5812 # Fill indexes.
5813 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5814 $languages{$lang->name} = $lang;
5815 my $link = $lang->linker;
5816 if ($link)
5817 {
5818 if (exists $link_languages{$link})
5819 {
5820 prog_error ("`$link' has different definitions in "
5821 . $lang->name . " and " . $link_languages{$link}->name)
5822 if $lang->link ne $link_languages{$link}->link;
5823 }
5824 else
5825 {
5826 $link_languages{$link} = $lang;
5827 }
5828 }
5830 # Update the pattern of known extensions.
5831 accept_extensions (@{$lang->extensions});
5833 # Upate the $suffix_rule map.
5834 foreach my $suffix (@{$lang->extensions})
5835 {
5836 foreach my $dest (&{$lang->output_extensions} ($suffix))
5837 {
5838 register_suffix_rule (INTERNAL, $suffix, $dest);
5839 }
5840 }
5841 }
5843 # derive_suffix ($EXT, $OBJ)
5844 # --------------------------
5845 # This function is used to find a path from a user-specified suffix $EXT
5846 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5847 sub derive_suffix ($$)
5848 {
5849 my ($source_ext, $obj) = @_;
5851 while (! $extension_map{$source_ext}
5852 && $source_ext ne $obj
5853 && exists $suffix_rules->{$source_ext}
5854 && exists $suffix_rules->{$source_ext}{$obj})
5855 {
5856 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5857 }
5859 return $source_ext;
5860 }
5863 ################################################################
5865 # Pretty-print something and append to output_rules.
5866 sub pretty_print_rule
5867 {
5868 $output_rules .= &makefile_wrap (@_);
5869 }
5872 ################################################################
5875 ## -------------------------------- ##
5876 ## Handling the conditional stack. ##
5877 ## -------------------------------- ##
5880 # $STRING
5881 # make_conditional_string ($NEGATE, $COND)
5882 # ----------------------------------------
5883 sub make_conditional_string ($$)
5884 {
5885 my ($negate, $cond) = @_;
5886 $cond = "${cond}_TRUE"
5887 unless $cond =~ /^TRUE|FALSE$/;
5888 $cond = Automake::Condition::conditional_negate ($cond)
5889 if $negate;
5890 return $cond;
5891 }
5894 my %_am_macro_for_cond =
5895 (
5896 AMDEP => "one of the compiler tests\n"
5897 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
5898 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
5899 am__fastdepCC => 'AC_PROG_CC',
5900 am__fastdepCCAS => 'AM_PROG_AS',
5901 am__fastdepCXX => 'AC_PROG_CXX',
5902 am__fastdepGCJ => 'AM_PROG_GCJ',
5903 am__fastdepOBJC => 'AC_PROG_OBJC',
5904 am__fastdepUPC => 'AM_PROG_UPC'
5905 );
5907 # $COND
5908 # cond_stack_if ($NEGATE, $COND, $WHERE)
5909 # --------------------------------------
5910 sub cond_stack_if ($$$)
5911 {
5912 my ($negate, $cond, $where) = @_;
5914 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
5915 {
5916 my $text = "$cond does not appear in AM_CONDITIONAL";
5917 my $scope = US_LOCAL;
5918 if (exists $_am_macro_for_cond{$cond})
5919 {
5920 my $mac = $_am_macro_for_cond{$cond};
5921 $text .= "\n The usual way to define `$cond' is to add ";
5922 $text .= ($mac =~ / /) ? $mac : "`$mac'";
5923 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
5924 # These warnings appear in Automake files (depend2.am),
5925 # so there is no need to display them more than once:
5926 $scope = US_GLOBAL;
5927 }
5928 error $where, $text, uniq_scope => $scope;
5929 }
5931 push (@cond_stack, make_conditional_string ($negate, $cond));
5933 return new Automake::Condition (@cond_stack);
5934 }
5937 # $COND
5938 # cond_stack_else ($NEGATE, $COND, $WHERE)
5939 # ----------------------------------------
5940 sub cond_stack_else ($$$)
5941 {
5942 my ($negate, $cond, $where) = @_;
5944 if (! @cond_stack)
5945 {
5946 error $where, "else without if";
5947 return FALSE;
5948 }
5950 $cond_stack[$#cond_stack] =
5951 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5953 # If $COND is given, check against it.
5954 if (defined $cond)
5955 {
5956 $cond = make_conditional_string ($negate, $cond);
5958 error ($where, "else reminder ($negate$cond) incompatible with "
5959 . "current conditional: $cond_stack[$#cond_stack]")
5960 if $cond_stack[$#cond_stack] ne $cond;
5961 }
5963 return new Automake::Condition (@cond_stack);
5964 }
5967 # $COND
5968 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5969 # -----------------------------------------
5970 sub cond_stack_endif ($$$)
5971 {
5972 my ($negate, $cond, $where) = @_;
5973 my $old_cond;
5975 if (! @cond_stack)
5976 {
5977 error $where, "endif without if";
5978 return TRUE;
5979 }
5981 # If $COND is given, check against it.
5982 if (defined $cond)
5983 {
5984 $cond = make_conditional_string ($negate, $cond);
5986 error ($where, "endif reminder ($negate$cond) incompatible with "
5987 . "current conditional: $cond_stack[$#cond_stack]")
5988 if $cond_stack[$#cond_stack] ne $cond;
5989 }
5991 pop @cond_stack;
5993 return new Automake::Condition (@cond_stack);
5994 }
6000 ## ------------------------ ##
6001 ## Handling the variables. ##
6002 ## ------------------------ ##
6005 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6006 # -----------------------------------------------------
6007 # Like define_variable, but the value is a list, and the variable may
6008 # be defined conditionally. The second argument is the condition
6009 # under which the value should be defined; this should be the empty
6010 # string to define the variable unconditionally. The third argument
6011 # is a list holding the values to use for the variable. The value is
6012 # pretty printed in the output file.
6013 sub define_pretty_variable ($$$@)
6014 {
6015 my ($var, $cond, $where, @value) = @_;
6017 if (! vardef ($var, $cond))
6018 {
6019 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6020 '', $where, VAR_PRETTY);
6021 rvar ($var)->rdef ($cond)->set_seen;
6022 }
6023 }
6026 # define_variable ($VAR, $VALUE, $WHERE)
6027 # --------------------------------------
6028 # Define a new Automake Makefile variable VAR to VALUE, but only if
6029 # not already defined.
6030 sub define_variable ($$$)
6031 {
6032 my ($var, $value, $where) = @_;
6033 define_pretty_variable ($var, TRUE, $where, $value);
6034 }
6037 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6038 # -----------------------------------------------------------
6039 # Define the $VAR which content is the list of file names composed of
6040 # a @BASENAME and the $EXTENSION.
6041 sub define_files_variable ($\@$$)
6042 {
6043 my ($var, $basename, $extension, $where) = @_;
6044 define_variable ($var,
6045 join (' ', map { "$_.$extension" } @$basename),
6046 $where);
6047 }
6050 # Like define_variable, but define a variable to be the configure
6051 # substitution by the same name.
6052 sub define_configure_variable ($)
6053 {
6054 my ($var) = @_;
6056 my $pretty = VAR_ASIS;
6057 my $owner = VAR_CONFIGURE;
6059 # Some variables we do not want to output. For instance it
6060 # would be a bad idea to output `U = @U@` when `@U@` can be
6061 # substituted as `\`.
6062 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6064 # ANSI2KNR is a variable that Automake wants to redefine, so
6065 # it must be owned by Automake. (It is also used as a proof
6066 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6067 # omit the AC_SUBST.)
6068 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6070 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6071 '', $configure_vars{$var}, $pretty);
6072 }
6075 # define_compiler_variable ($LANG)
6076 # --------------------------------
6077 # Define a compiler variable. We also handle defining the `LT'
6078 # version of the command when using libtool.
6079 sub define_compiler_variable ($)
6080 {
6081 my ($lang) = @_;
6083 my ($var, $value) = ($lang->compiler, $lang->compile);
6084 my $libtool_tag = '';
6085 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6086 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6087 &define_variable ($var, $value, INTERNAL);
6088 &define_variable ("LT$var",
6089 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
6090 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6091 INTERNAL)
6092 if var ('LIBTOOL');
6093 }
6096 # define_linker_variable ($LANG)
6097 # ------------------------------
6098 # Define linker variables.
6099 sub define_linker_variable ($)
6100 {
6101 my ($lang) = @_;
6103 my $libtool_tag = '';
6104 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6105 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6106 # CCLD = $(CC).
6107 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6108 # CCLINK = $(CCLD) blah blah...
6109 &define_variable ($lang->linker,
6110 ((var ('LIBTOOL') ?
6111 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
6112 . "\$(LIBTOOLFLAGS) --mode=link " : '')
6113 . $lang->link),
6114 INTERNAL);
6115 }
6117 sub define_per_target_linker_variable ($$)
6118 {
6119 my ($linker, $target) = @_;
6121 # If the user wrote a custom link command, we don't define ours.
6122 return "${target}_LINK"
6123 if set_seen "${target}_LINK";
6125 my $xlink = $linker ? $linker : 'LINK';
6127 my $lang = $link_languages{$xlink};
6128 prog_error "Unknown language for linker variable `$xlink'"
6129 unless $lang;
6131 my $link_command = $lang->link;
6132 if (var 'LIBTOOL')
6133 {
6134 my $libtool_tag = '';
6135 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6136 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6138 $link_command =
6139 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6140 . "--mode=link " . $link_command;
6141 }
6143 # Rewrite each occurrence of `AM_$flag' in the link
6144 # command into `${derived}_$flag' if it exists.
6145 my $orig_command = $link_command;
6146 my @flags = (@{$lang->flags}, 'LDFLAGS');
6147 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6148 for my $flag (@flags)
6149 {
6150 my $val = "${target}_$flag";
6151 $link_command =~ s/\(AM_$flag\)/\($val\)/
6152 if set_seen ($val);
6153 }
6155 # If the computed command is the same as the generic command, use
6156 # the command linker variable.
6157 return $lang->linker
6158 if $link_command eq $orig_command;
6160 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6161 return "${target}_LINK";
6162 }
6164 ################################################################
6166 # &check_trailing_slash ($WHERE, $LINE)
6167 # --------------------------------------
6168 # Return 1 iff $LINE ends with a slash.
6169 # Might modify $LINE.
6170 sub check_trailing_slash ($\$)
6171 {
6172 my ($where, $line) = @_;
6174 # Ignore `##' lines.
6175 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6177 # Catch and fix a common error.
6178 msg "syntax", $where, "whitespace following trailing backslash"
6179 if $$line =~ s/\\\s+\n$/\\\n/;
6181 return $$line =~ /\\$/;
6182 }
6185 # &read_am_file ($AMFILE, $WHERE)
6186 # -------------------------------
6187 # Read Makefile.am and set up %contents. Simultaneously copy lines
6188 # from Makefile.am into $output_trailer, or define variables as
6189 # appropriate. NOTE we put rules in the trailer section. We want
6190 # user rules to come after our generated stuff.
6191 sub read_am_file ($$)
6192 {
6193 my ($amfile, $where) = @_;
6195 my $am_file = new Automake::XFile ("< $amfile");
6196 verb "reading $amfile";
6198 # Keep track of the youngest output dependency.
6199 my $mtime = mtime $amfile;
6200 $output_deps_greatest_timestamp = $mtime
6201 if $mtime > $output_deps_greatest_timestamp;
6203 my $spacing = '';
6204 my $comment = '';
6205 my $blank = 0;
6206 my $saw_bk = 0;
6207 my $var_look = VAR_ASIS;
6209 use constant IN_VAR_DEF => 0;
6210 use constant IN_RULE_DEF => 1;
6211 use constant IN_COMMENT => 2;
6212 my $prev_state = IN_RULE_DEF;
6214 while ($_ = $am_file->getline)
6215 {
6216 $where->set ("$amfile:$.");
6217 if (/$IGNORE_PATTERN/o)
6218 {
6219 # Merely delete comments beginning with two hashes.
6220 }
6221 elsif (/$WHITE_PATTERN/o)
6222 {
6223 error $where, "blank line following trailing backslash"
6224 if $saw_bk;
6225 # Stick a single white line before the incoming macro or rule.
6226 $spacing = "\n";
6227 $blank = 1;
6228 # Flush all comments seen so far.
6229 if ($comment ne '')
6230 {
6231 $output_vars .= $comment;
6232 $comment = '';
6233 }
6234 }
6235 elsif (/$COMMENT_PATTERN/o)
6236 {
6237 # Stick comments before the incoming macro or rule. Make
6238 # sure a blank line precedes the first block of comments.
6239 $spacing = "\n" unless $blank;
6240 $blank = 1;
6241 $comment .= $spacing . $_;
6242 $spacing = '';
6243 $prev_state = IN_COMMENT;
6244 }
6245 else
6246 {
6247 last;
6248 }
6249 $saw_bk = check_trailing_slash ($where, $_);
6250 }
6252 # We save the conditional stack on entry, and then check to make
6253 # sure it is the same on exit. This lets us conditionally include
6254 # other files.
6255 my @saved_cond_stack = @cond_stack;
6256 my $cond = new Automake::Condition (@cond_stack);
6258 my $last_var_name = '';
6259 my $last_var_type = '';
6260 my $last_var_value = '';
6261 my $last_where;
6262 # FIXME: shouldn't use $_ in this loop; it is too big.
6263 while ($_)
6264 {
6265 $where->set ("$amfile:$.");
6267 # Make sure the line is \n-terminated.
6268 chomp;
6269 $_ .= "\n";
6271 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6272 # used by users. @MAINT@ is an anachronism now.
6273 $_ =~ s/\@MAINT\@//g
6274 unless $seen_maint_mode;
6276 my $new_saw_bk = check_trailing_slash ($where, $_);
6278 if (/$IGNORE_PATTERN/o)
6279 {
6280 # Merely delete comments beginning with two hashes.
6282 # Keep any backslash from the previous line.
6283 $new_saw_bk = $saw_bk;
6284 }
6285 elsif (/$WHITE_PATTERN/o)
6286 {
6287 # Stick a single white line before the incoming macro or rule.
6288 $spacing = "\n";
6289 error $where, "blank line following trailing backslash"
6290 if $saw_bk;
6291 }
6292 elsif (/$COMMENT_PATTERN/o)
6293 {
6294 error $where, "comment following trailing backslash"
6295 if $saw_bk && $comment eq '';
6297 # Stick comments before the incoming macro or rule.
6298 $comment .= $spacing . $_;
6299 $spacing = '';
6300 $prev_state = IN_COMMENT;
6301 }
6302 elsif ($saw_bk)
6303 {
6304 if ($prev_state == IN_RULE_DEF)
6305 {
6306 my $cond = new Automake::Condition @cond_stack;
6307 $output_trailer .= $cond->subst_string;
6308 $output_trailer .= $_;
6309 }
6310 elsif ($prev_state == IN_COMMENT)
6311 {
6312 # If the line doesn't start with a `#', add it.
6313 # We do this because a continued comment like
6314 # # A = foo \
6315 # bar \
6316 # baz
6317 # is not portable. BSD make doesn't honor
6318 # escaped newlines in comments.
6319 s/^#?/#/;
6320 $comment .= $spacing . $_;
6321 }
6322 else # $prev_state == IN_VAR_DEF
6323 {
6324 $last_var_value .= ' '
6325 unless $last_var_value =~ /\s$/;
6326 $last_var_value .= $_;
6328 if (!/\\$/)
6329 {
6330 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6331 $last_var_type, $cond,
6332 $last_var_value, $comment,
6333 $last_where, VAR_ASIS)
6334 if $cond != FALSE;
6335 $comment = $spacing = '';
6336 }
6337 }
6338 }
6340 elsif (/$IF_PATTERN/o)
6341 {
6342 $cond = cond_stack_if ($1, $2, $where);
6343 }
6344 elsif (/$ELSE_PATTERN/o)
6345 {
6346 $cond = cond_stack_else ($1, $2, $where);
6347 }
6348 elsif (/$ENDIF_PATTERN/o)
6349 {
6350 $cond = cond_stack_endif ($1, $2, $where);
6351 }
6353 elsif (/$RULE_PATTERN/o)
6354 {
6355 # Found a rule.
6356 $prev_state = IN_RULE_DEF;
6358 # For now we have to output all definitions of user rules
6359 # and can't diagnose duplicates (see the comment in
6360 # Automake::Rule::define). So we go on and ignore the return value.
6361 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6363 check_variable_expansions ($_, $where);
6365 $output_trailer .= $comment . $spacing;
6366 my $cond = new Automake::Condition @cond_stack;
6367 $output_trailer .= $cond->subst_string;
6368 $output_trailer .= $_;
6369 $comment = $spacing = '';
6370 }
6371 elsif (/$ASSIGNMENT_PATTERN/o)
6372 {
6373 # Found a macro definition.
6374 $prev_state = IN_VAR_DEF;
6375 $last_var_name = $1;
6376 $last_var_type = $2;
6377 $last_var_value = $3;
6378 $last_where = $where->clone;
6379 if ($3 ne '' && substr ($3, -1) eq "\\")
6380 {
6381 # We preserve the `\' because otherwise the long lines
6382 # that are generated will be truncated by broken
6383 # `sed's.
6384 $last_var_value = $3 . "\n";
6385 }
6386 # Normally we try to output variable definitions in the
6387 # same format they were input. However, POSIX compliant
6388 # systems are not required to support lines longer than
6389 # 2048 bytes (most notably, some sed implementation are
6390 # limited to 4000 bytes, and sed is used by config.status
6391 # to rewrite Makefile.in into Makefile). Moreover nobody
6392 # would really write such long lines by hand since it is
6393 # hardly maintainable. So if a line is longer that 1000
6394 # bytes (an arbitrary limit), assume it has been
6395 # automatically generated by some tools, and flatten the
6396 # variable definition. Otherwise, keep the variable as it
6397 # as been input.
6398 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6400 if (!/\\$/)
6401 {
6402 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6403 $last_var_type, $cond,
6404 $last_var_value, $comment,
6405 $last_where, $var_look)
6406 if $cond != FALSE;
6407 $comment = $spacing = '';
6408 $var_look = VAR_ASIS;
6409 }
6410 }
6411 elsif (/$INCLUDE_PATTERN/o)
6412 {
6413 my $path = $1;
6415 if ($path =~ s/^\$\(top_srcdir\)\///)
6416 {
6417 push (@include_stack, "\$\(top_srcdir\)/$path");
6418 # Distribute any included file.
6420 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6421 # otherwise OSF make will implicitly copy the included
6422 # file in the build tree during `make distdir' to satisfy
6423 # the dependency.
6424 # (subdircond2.test and subdircond3.test will fail.)
6425 push_dist_common ("\$\(top_srcdir\)/$path");
6426 }
6427 else
6428 {
6429 $path =~ s/\$\(srcdir\)\///;
6430 push (@include_stack, "\$\(srcdir\)/$path");
6431 # Always use the $(srcdir) prefix in DIST_COMMON,
6432 # otherwise OSF make will implicitly copy the included
6433 # file in the build tree during `make distdir' to satisfy
6434 # the dependency.
6435 # (subdircond2.test and subdircond3.test will fail.)
6436 push_dist_common ("\$\(srcdir\)/$path");
6437 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6438 }
6439 $where->push_context ("`$path' included from here");
6440 &read_am_file ($path, $where);
6441 $where->pop_context;
6442 }
6443 else
6444 {
6445 # This isn't an error; it is probably a continued rule.
6446 # In fact, this is what we assume.
6447 $prev_state = IN_RULE_DEF;
6448 check_variable_expansions ($_, $where);
6449 $output_trailer .= $comment . $spacing;
6450 my $cond = new Automake::Condition @cond_stack;
6451 $output_trailer .= $cond->subst_string;
6452 $output_trailer .= $_;
6453 $comment = $spacing = '';
6454 error $where, "`#' comment at start of rule is unportable"
6455 if $_ =~ /^\t\s*\#/;
6456 }
6458 $saw_bk = $new_saw_bk;
6459 $_ = $am_file->getline;
6460 }
6462 $output_trailer .= $comment;
6464 error ($where, "trailing backslash on last line")
6465 if $saw_bk;
6467 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6468 : "too many conditionals closed in include file"))
6469 if "@saved_cond_stack" ne "@cond_stack";
6470 }
6473 # define_standard_variables ()
6474 # ----------------------------
6475 # A helper for read_main_am_file which initializes configure variables
6476 # and variables from header-vars.am.
6477 sub define_standard_variables
6478 {
6479 my $saved_output_vars = $output_vars;
6480 my ($comments, undef, $rules) =
6481 file_contents_internal (1, "$libdir/am/header-vars.am",
6482 new Automake::Location);
6484 foreach my $var (sort keys %configure_vars)
6485 {
6486 &define_configure_variable ($var);
6487 }
6489 $output_vars .= $comments . $rules;
6490 }
6492 # Read main am file.
6493 sub read_main_am_file
6494 {
6495 my ($amfile) = @_;
6497 # This supports the strange variable tricks we are about to play.
6498 prog_error (macros_dump () . "variable defined before read_main_am_file")
6499 if (scalar (variables) > 0);
6501 # Generate copyright header for generated Makefile.in.
6502 # We do discard the output of predefined variables, handled below.
6503 $output_vars = ("# $in_file_name generated by automake "
6504 . $VERSION . " from $am_file_name.\n");
6505 $output_vars .= '# ' . subst ('configure_input') . "\n";
6506 $output_vars .= $gen_copyright;
6508 # We want to predefine as many variables as possible. This lets
6509 # the user set them with `+=' in Makefile.am.
6510 &define_standard_variables;
6512 # Read user file, which might override some of our values.
6513 &read_am_file ($amfile, new Automake::Location);
6514 }
6518 ################################################################
6520 # $FLATTENED
6521 # &flatten ($STRING)
6522 # ------------------
6523 # Flatten the $STRING and return the result.
6524 sub flatten
6525 {
6526 $_ = shift;
6528 s/\\\n//somg;
6529 s/\s+/ /g;
6530 s/^ //;
6531 s/ $//;
6533 return $_;
6534 }
6537 # transform_token ($TOKEN, \%PAIRS, $KEY)
6538 # =======================================
6539 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
6540 # (which should be ?KEY? or any of the special %% requests)..
6541 sub transform_token ($$$)
6542 {
6543 my ($token, $transform, $key) = @_;
6544 my $res = $transform->{$key};
6545 prog_error "Unknown key `$key' in `$token'" unless defined $res;
6546 return $res;
6547 }
6550 # transform ($TOKEN, \%PAIRS)
6551 # ===========================
6552 # If ($TOKEN, $VAL) is in %PAIRS:
6553 # - replaces %KEY% with $VAL,
6554 # - enables/disables ?KEY? and ?!KEY?,
6555 # - replaces %?KEY% with TRUE or FALSE.
6556 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
6557 # IFTRUE / IFFALSE, as appropriate.
6558 sub transform ($$)
6559 {
6560 my ($token, $transform) = @_;
6562 # %KEY%.
6563 # Must be before the following pattern to exclude the case
6564 # when there is neither IFTRUE nor IFFALSE.
6565 if ($token =~ /^%([\w\-]+)%$/)
6566 {
6567 return transform_token ($token, $transform, $1);
6568 }
6569 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
6570 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
6571 {
6572 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
6573 }
6574 # %?KEY%.
6575 elsif ($token =~ /^%\?([\w\-]+)%$/)
6576 {
6577 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
6578 }
6579 # ?KEY? and ?!KEY?.
6580 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
6581 {
6582 my $neg = ($1 eq '!') ? 1 : 0;
6583 my $val = transform_token ($token, $transform, $2);
6584 return (!!$val == $neg) ? '##%' : '';
6585 }
6586 else
6587 {
6588 prog_error "Unknown request format: $token";
6589 }
6590 }
6593 # @PARAGRAPHS
6594 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6595 # ------------------------------------------
6596 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6597 # paragraphs.
6598 sub make_paragraphs ($%)
6599 {
6600 my ($file, %transform) = @_;
6602 # Complete %transform with global options.
6603 # Note that %transform goes last, so it overrides global options.
6604 %transform = ('CYGNUS' => !! option 'cygnus',
6605 'MAINTAINER-MODE'
6606 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6608 'LZMA' => !! option 'dist-lzma',
6609 'BZIP2' => !! option 'dist-bzip2',
6610 'COMPRESS' => !! option 'dist-tarZ',
6611 'GZIP' => ! option 'no-dist-gzip',
6612 'SHAR' => !! option 'dist-shar',
6613 'ZIP' => !! option 'dist-zip',
6615 'INSTALL-INFO' => ! option 'no-installinfo',
6616 'INSTALL-MAN' => ! option 'no-installman',
6617 'CK-NEWS' => !! option 'check-news',
6619 'SUBDIRS' => !! var ('SUBDIRS'),
6620 'TOPDIR_P' => $relative_dir eq '.',
6622 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6623 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6624 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6626 'LIBTOOL' => !! var ('LIBTOOL'),
6627 'NONLIBTOOL' => 1,
6628 'FIRST' => ! $transformed_files{$file},
6629 %transform);
6631 $transformed_files{$file} = 1;
6632 $_ = $am_file_cache{$file};
6634 if (! defined $_)
6635 {
6636 verb "reading $file";
6637 # Swallow the whole file.
6638 my $fc_file = new Automake::XFile "< $file";
6639 my $saved_dollar_slash = $/;
6640 undef $/;
6641 $_ = $fc_file->getline;
6642 $/ = $saved_dollar_slash;
6643 $fc_file->close;
6645 # Remove ##-comments.
6646 # Besides we don't need more than two consecutive new-lines.
6647 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6649 $am_file_cache{$file} = $_;
6650 }
6652 # Substitute Automake template tokens.
6653 s/(?: % \?? [\w\-]+ %
6654 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
6655 | \? !? [\w\-]+ \?
6656 )/transform($&, \%transform)/gex;
6657 # transform() may have added some ##%-comments to strip.
6658 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6659 # ####### and do not remove the latter.)
6660 s/^[ \t]*(?:##%)+.*\n//gm;
6662 # Split at unescaped new lines.
6663 my @lines = split (/(?<!\\)\n/, $_);
6664 my @res;
6666 while (defined ($_ = shift @lines))
6667 {
6668 my $paragraph = $_;
6669 # If we are a rule, eat as long as we start with a tab.
6670 if (/$RULE_PATTERN/smo)
6671 {
6672 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6673 {
6674 $paragraph .= "\n$_";
6675 }
6676 unshift (@lines, $_);
6677 }
6679 # If we are a comments, eat as much comments as you can.
6680 elsif (/$COMMENT_PATTERN/smo)
6681 {
6682 while (defined ($_ = shift @lines)
6683 && $_ =~ /$COMMENT_PATTERN/smo)
6684 {
6685 $paragraph .= "\n$_";
6686 }
6687 unshift (@lines, $_);
6688 }
6690 push @res, $paragraph;
6691 }
6693 return @res;
6694 }
6698 # ($COMMENT, $VARIABLES, $RULES)
6699 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6700 # -------------------------------------------------------------
6701 # Return contents of a file from $libdir/am, automatically skipping
6702 # macros or rules which are already known. $IS_AM iff the caller is
6703 # reading an Automake file (as opposed to the user's Makefile.am).
6704 sub file_contents_internal ($$$%)
6705 {
6706 my ($is_am, $file, $where, %transform) = @_;
6708 $where->set ($file);
6710 my $result_vars = '';
6711 my $result_rules = '';
6712 my $comment = '';
6713 my $spacing = '';
6715 # The following flags are used to track rules spanning across
6716 # multiple paragraphs.
6717 my $is_rule = 0; # 1 if we are processing a rule.
6718 my $discard_rule = 0; # 1 if the current rule should not be output.
6720 # We save the conditional stack on entry, and then check to make
6721 # sure it is the same on exit. This lets us conditionally include
6722 # other files.
6723 my @saved_cond_stack = @cond_stack;
6724 my $cond = new Automake::Condition (@cond_stack);
6726 foreach (make_paragraphs ($file, %transform))
6727 {
6728 # FIXME: no line number available.
6729 $where->set ($file);
6731 # Sanity checks.
6732 error $where, "blank line following trailing backslash:\n$_"
6733 if /\\$/;
6734 error $where, "comment following trailing backslash:\n$_"
6735 if /\\#/;
6737 if (/^$/)
6738 {
6739 $is_rule = 0;
6740 # Stick empty line before the incoming macro or rule.
6741 $spacing = "\n";
6742 }
6743 elsif (/$COMMENT_PATTERN/mso)
6744 {
6745 $is_rule = 0;
6746 # Stick comments before the incoming macro or rule.
6747 $comment = "$_\n";
6748 }
6750 # Handle inclusion of other files.
6751 elsif (/$INCLUDE_PATTERN/o)
6752 {
6753 if ($cond != FALSE)
6754 {
6755 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6756 $where->push_context ("`$file' included from here");
6757 # N-ary `.=' fails.
6758 my ($com, $vars, $rules)
6759 = file_contents_internal ($is_am, $file, $where, %transform);
6760 $where->pop_context;
6761 $comment .= $com;
6762 $result_vars .= $vars;
6763 $result_rules .= $rules;
6764 }
6765 }
6767 # Handling the conditionals.
6768 elsif (/$IF_PATTERN/o)
6769 {
6770 $cond = cond_stack_if ($1, $2, $file);
6771 }
6772 elsif (/$ELSE_PATTERN/o)
6773 {
6774 $cond = cond_stack_else ($1, $2, $file);
6775 }
6776 elsif (/$ENDIF_PATTERN/o)
6777 {
6778 $cond = cond_stack_endif ($1, $2, $file);
6779 }
6781 # Handling rules.
6782 elsif (/$RULE_PATTERN/mso)
6783 {
6784 $is_rule = 1;
6785 $discard_rule = 0;
6786 # Separate relationship from optional actions: the first
6787 # `new-line tab" not preceded by backslash (continuation
6788 # line).
6789 my $paragraph = $_;
6790 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6791 my ($relationship, $actions) = ($1, $2 || '');
6793 # Separate targets from dependencies: the first colon.
6794 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6795 my ($targets, $dependencies) = ($1, $2);
6796 # Remove the escaped new lines.
6797 # I don't know why, but I have to use a tmp $flat_deps.
6798 my $flat_deps = &flatten ($dependencies);
6799 my @deps = split (' ', $flat_deps);
6801 foreach (split (' ' , $targets))
6802 {
6803 # FIXME: 1. We are not robust to people defining several targets
6804 # at once, only some of them being in %dependencies. The
6805 # actions from the targets in %dependencies are usually generated
6806 # from the content of %actions, but if some targets in $targets
6807 # are not in %dependencies the ELSE branch will output
6808 # a rule for all $targets (i.e. the targets which are both
6809 # in %dependencies and $targets will have two rules).
6811 # FIXME: 2. The logic here is not able to output a
6812 # multi-paragraph rule several time (e.g. for each condition
6813 # it is defined for) because it only knows the first paragraph.
6815 # FIXME: 3. We are not robust to people defining a subset
6816 # of a previously defined "multiple-target" rule. E.g.
6817 # `foo:' after `foo bar:'.
6819 # Output only if not in FALSE.
6820 if (defined $dependencies{$_} && $cond != FALSE)
6821 {
6822 &depend ($_, @deps);
6823 register_action ($_, $actions);
6824 }
6825 else
6826 {
6827 # Free-lance dependency. Output the rule for all the
6828 # targets instead of one by one.
6829 my @undefined_conds =
6830 Automake::Rule::define ($targets, $file,
6831 $is_am ? RULE_AUTOMAKE : RULE_USER,
6832 $cond, $where);
6833 for my $undefined_cond (@undefined_conds)
6834 {
6835 my $condparagraph = $paragraph;
6836 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6837 $result_rules .= "$spacing$comment$condparagraph\n";
6838 }
6839 if (scalar @undefined_conds == 0)
6840 {
6841 # Remember to discard next paragraphs
6842 # if they belong to this rule.
6843 # (but see also FIXME: #2 above.)
6844 $discard_rule = 1;
6845 }
6846 $comment = $spacing = '';
6847 last;
6848 }
6849 }
6850 }
6852 elsif (/$ASSIGNMENT_PATTERN/mso)
6853 {
6854 my ($var, $type, $val) = ($1, $2, $3);
6855 error $where, "variable `$var' with trailing backslash"
6856 if /\\$/;
6858 $is_rule = 0;
6860 Automake::Variable::define ($var,
6861 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6862 $type, $cond, $val, $comment, $where,
6863 VAR_ASIS)
6864 if $cond != FALSE;
6866 $comment = $spacing = '';
6867 }
6868 else
6869 {
6870 # This isn't an error; it is probably some tokens which
6871 # configure is supposed to replace, such as `@SET-MAKE@',
6872 # or some part of a rule cut by an if/endif.
6873 if (! $cond->false && ! ($is_rule && $discard_rule))
6874 {
6875 s/^/$cond->subst_string/gme;
6876 $result_rules .= "$spacing$comment$_\n";
6877 }
6878 $comment = $spacing = '';
6879 }
6880 }
6882 error ($where, @cond_stack ?
6883 "unterminated conditionals: @cond_stack" :
6884 "too many conditionals closed in include file")
6885 if "@saved_cond_stack" ne "@cond_stack";
6887 return ($comment, $result_vars, $result_rules);
6888 }
6891 # $CONTENTS
6892 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6893 # ------------------------------------------------
6894 # Return contents of a file from $libdir/am, automatically skipping
6895 # macros or rules which are already known.
6896 sub file_contents ($$%)
6897 {
6898 my ($basename, $where, %transform) = @_;
6899 my ($comments, $variables, $rules) =
6900 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6901 %transform);
6902 return "$comments$variables$rules";
6903 }
6906 # @PREFIX
6907 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6908 # -----------------------------------------------------
6909 # Find all variable prefixes that are used for install directories. A
6910 # prefix `zar' qualifies iff:
6911 #
6912 # * `zardir' is a variable.
6913 # * `zar_PRIMARY' is a variable.
6914 #
6915 # As a side effect, it looks for misspellings. It is an error to have
6916 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6917 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
6918 # of the same name (with "dir" appended) exists. For instance, if the
6919 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6920 # This is to provide a little extra flexibility in those cases which
6921 # need it.
6922 sub am_primary_prefixes ($$@)
6923 {
6924 my ($primary, $can_dist, @prefixes) = @_;
6926 local $_;
6927 my %valid = map { $_ => 0 } @prefixes;
6928 $valid{'EXTRA'} = 0;
6929 foreach my $var (variables $primary)
6930 {
6931 # Automake is allowed to define variables that look like primaries
6932 # but which aren't. E.g. INSTALL_sh_DATA.
6933 # Autoconf can also define variables like INSTALL_DATA, so
6934 # ignore all configure variables (at least those which are not
6935 # redefined in Makefile.am).
6936 # FIXME: We should make sure that these variables are not
6937 # conditionally defined (or else adjust the condition below).
6938 my $def = $var->def (TRUE);
6939 next if $def && $def->owner != VAR_MAKEFILE;
6941 my $varname = $var->name;
6943 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
6944 {
6945 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6946 if ($dist ne '' && ! $can_dist)
6947 {
6948 err_var ($var,
6949 "invalid variable `$varname': `dist' is forbidden");
6950 }
6951 # Standard directories must be explicitly allowed.
6952 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6953 {
6954 err_var ($var,
6955 "`${X}dir' is not a legitimate directory " .
6956 "for `$primary'");
6957 }
6958 # A not explicitly valid directory is allowed if Xdir is defined.
6959 elsif (! defined $valid{$X} &&
6960 $var->requires_variables ("`$varname' is used", "${X}dir"))
6961 {
6962 # Nothing to do. Any error message has been output
6963 # by $var->requires_variables.
6964 }
6965 else
6966 {
6967 # Ensure all extended prefixes are actually used.
6968 $valid{"$base$dist$X"} = 1;
6969 }
6970 }
6971 else
6972 {
6973 prog_error "unexpected variable name: $varname";
6974 }
6975 }
6977 # Return only those which are actually defined.
6978 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6979 }
6982 # Handle `where_HOW' variable magic. Does all lookups, generates
6983 # install code, and possibly generates code to define the primary
6984 # variable. The first argument is the name of the .am file to munge,
6985 # the second argument is the primary variable (e.g. HEADERS), and all
6986 # subsequent arguments are possible installation locations.
6987 #
6988 # Returns list of [$location, $value] pairs, where
6989 # $value's are the values in all where_HOW variable, and $location
6990 # there associated location (the place here their parent variables were
6991 # defined).
6992 #
6993 # FIXME: this should be rewritten to be cleaner. It should be broken
6994 # up into multiple functions.
6995 #
6996 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6997 sub am_install_var
6998 {
6999 my (@args) = @_;
7001 my $do_require = 1;
7002 my $can_dist = 0;
7003 my $default_dist = 0;
7004 while (@args)
7005 {
7006 if ($args[0] eq '-noextra')
7007 {
7008 $do_require = 0;
7009 }
7010 elsif ($args[0] eq '-candist')
7011 {
7012 $can_dist = 1;
7013 }
7014 elsif ($args[0] eq '-defaultdist')
7015 {
7016 $default_dist = 1;
7017 $can_dist = 1;
7018 }
7019 elsif ($args[0] !~ /^-/)
7020 {
7021 last;
7022 }
7023 shift (@args);
7024 }
7026 my ($file, $primary, @prefix) = @args;
7028 # Now that configure substitutions are allowed in where_HOW
7029 # variables, it is an error to actually define the primary. We
7030 # allow `JAVA', as it is customarily used to mean the Java
7031 # interpreter. This is but one of several Java hacks. Similarly,
7032 # `PYTHON' is customarily used to mean the Python interpreter.
7033 reject_var $primary, "`$primary' is an anachronism"
7034 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7036 # Get the prefixes which are valid and actually used.
7037 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7039 # If a primary includes a configure substitution, then the EXTRA_
7040 # form is required. Otherwise we can't properly do our job.
7041 my $require_extra;
7043 my @used = ();
7044 my @result = ();
7046 foreach my $X (@prefix)
7047 {
7048 my $nodir_name = $X;
7049 my $one_name = $X . '_' . $primary;
7050 my $one_var = var $one_name;
7052 my $strip_subdir = 1;
7053 # If subdir prefix should be preserved, do so.
7054 if ($nodir_name =~ /^nobase_/)
7055 {
7056 $strip_subdir = 0;
7057 $nodir_name =~ s/^nobase_//;
7058 }
7060 # If files should be distributed, do so.
7061 my $dist_p = 0;
7062 if ($can_dist)
7063 {
7064 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7065 || (! $default_dist && $nodir_name =~ /^dist_/));
7066 $nodir_name =~ s/^(dist|nodist)_//;
7067 }
7070 # Use the location of the currently processed variable.
7071 # We are not processing a particular condition, so pick the first
7072 # available.
7073 my $tmpcond = $one_var->conditions->one_cond;
7074 my $where = $one_var->rdef ($tmpcond)->location->clone;
7076 # Append actual contents of where_PRIMARY variable to
7077 # @result, skipping @substitutions@.
7078 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7079 {
7080 my ($loc, $value) = @$locvals;
7081 # Skip configure substitutions.
7082 if ($value =~ /^\@.*\@$/)
7083 {
7084 if ($nodir_name eq 'EXTRA')
7085 {
7086 error ($where,
7087 "`$one_name' contains configure substitution, "
7088 . "but shouldn't");
7089 }
7090 # Check here to make sure variables defined in
7091 # configure.ac do not imply that EXTRA_PRIMARY
7092 # must be defined.
7093 elsif (! defined $configure_vars{$one_name})
7094 {
7095 $require_extra = $one_name
7096 if $do_require;
7097 }
7098 }
7099 else
7100 {
7101 push (@result, $locvals);
7102 }
7103 }
7104 # A blatant hack: we rewrite each _PROGRAMS primary to include
7105 # EXEEXT.
7106 append_exeext { 1 } $one_name
7107 if $primary eq 'PROGRAMS';
7108 # "EXTRA" shouldn't be used when generating clean targets,
7109 # all, or install targets. We used to warn if EXTRA_FOO was
7110 # defined uselessly, but this was annoying.
7111 next
7112 if $nodir_name eq 'EXTRA';
7114 if ($nodir_name eq 'check')
7115 {
7116 push (@check, '$(' . $one_name . ')');
7117 }
7118 else
7119 {
7120 push (@used, '$(' . $one_name . ')');
7121 }
7123 # Is this to be installed?
7124 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7126 # If so, with install-exec? (or install-data?).
7127 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7129 my $check_options_p = $install_p && !! option 'std-options';
7131 # Use the location of the currently processed variable as context.
7132 $where->push_context ("while processing `$one_name'");
7134 # The variable containing all files to distribute.
7135 my $distvar = "\$($one_name)";
7136 $distvar = shadow_unconditionally ($one_name, $where)
7137 if ($dist_p && $one_var->has_conditional_contents);
7139 # Singular form of $PRIMARY.
7140 (my $one_primary = $primary) =~ s/S$//;
7141 $output_rules .= &file_contents ($file, $where,
7142 PRIMARY => $primary,
7143 ONE_PRIMARY => $one_primary,
7144 DIR => $X,
7145 NDIR => $nodir_name,
7146 BASE => $strip_subdir,
7148 EXEC => $exec_p,
7149 INSTALL => $install_p,
7150 DIST => $dist_p,
7151 DISTVAR => $distvar,
7152 'CK-OPTS' => $check_options_p);
7153 }
7155 # The JAVA variable is used as the name of the Java interpreter.
7156 # The PYTHON variable is used as the name of the Python interpreter.
7157 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7158 {
7159 # Define it.
7160 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7161 $output_vars .= "\n";
7162 }
7164 err_var ($require_extra,
7165 "`$require_extra' contains configure substitution,\n"
7166 . "but `EXTRA_$primary' not defined")
7167 if ($require_extra && ! var ('EXTRA_' . $primary));
7169 # Push here because PRIMARY might be configure time determined.
7170 push (@all, '$(' . $primary . ')')
7171 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7173 # Make the result unique. This lets the user use conditionals in
7174 # a natural way, but still lets us program lazily -- we don't have
7175 # to worry about handling a particular object more than once.
7176 # We will keep only one location per object.
7177 my %result = ();
7178 for my $pair (@result)
7179 {
7180 my ($loc, $val) = @$pair;
7181 $result{$val} = $loc;
7182 }
7183 my @l = sort keys %result;
7184 return map { [$result{$_}->clone, $_] } @l;
7185 }
7188 ################################################################
7190 # Each key in this hash is the name of a directory holding a
7191 # Makefile.in. These variables are local to `is_make_dir'.
7192 my %make_dirs = ();
7193 my $make_dirs_set = 0;
7195 sub is_make_dir
7196 {
7197 my ($dir) = @_;
7198 if (! $make_dirs_set)
7199 {
7200 foreach my $iter (@configure_input_files)
7201 {
7202 $make_dirs{dirname ($iter)} = 1;
7203 }
7204 # We also want to notice Makefile.in's.
7205 foreach my $iter (@other_input_files)
7206 {
7207 if ($iter =~ /Makefile\.in$/)
7208 {
7209 $make_dirs{dirname ($iter)} = 1;
7210 }
7211 }
7212 $make_dirs_set = 1;
7213 }
7214 return defined $make_dirs{$dir};
7215 }
7217 ################################################################
7219 # Find the aux dir. This should match the algorithm used by
7220 # ./configure. (See the Autoconf documentation for for
7221 # AC_CONFIG_AUX_DIR.)
7222 sub locate_aux_dir ()
7223 {
7224 if (! $config_aux_dir_set_in_configure_ac)
7225 {
7226 # The default auxiliary directory is the first
7227 # of ., .., or ../.. that contains install-sh.
7228 # Assume . if install-sh doesn't exist yet.
7229 for my $dir (qw (. .. ../..))
7230 {
7231 if (-f "$dir/install-sh")
7232 {
7233 $config_aux_dir = $dir;
7234 last;
7235 }
7236 }
7237 $config_aux_dir = '.' unless $config_aux_dir;
7238 }
7239 # Avoid unsightly '/.'s.
7240 $am_config_aux_dir =
7241 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7242 $am_config_aux_dir =~ s,/*$,,;
7243 }
7246 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7247 # --------------------------------------------------
7248 # See if we want to push this file onto dist_common. This function
7249 # encodes the rules for deciding when to do so.
7250 sub maybe_push_required_file
7251 {
7252 my ($dir, $file, $fullfile) = @_;
7254 if ($dir eq $relative_dir)
7255 {
7256 push_dist_common ($file);
7257 return 1;
7258 }
7259 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7260 {
7261 # If we are doing the topmost directory, and the file is in a
7262 # subdir which does not have a Makefile, then we distribute it
7263 # here.
7265 # If a required file is above the source tree, it is important
7266 # to prefix it with `$(srcdir)' so that no VPATH search is
7267 # performed. Otherwise problems occur with Make implementations
7268 # that rewrite and simplify rules whose dependencies are found in a
7269 # VPATH location. Here is an example with OSF1/Tru64 Make.
7270 #
7271 # % cat Makefile
7272 # VPATH = sub
7273 # distdir: ../a
7274 # echo ../a
7275 # % ls
7276 # Makefile a
7277 # % make
7278 # echo a
7279 # a
7280 #
7281 # Dependency `../a' was found in `sub/../a', but this make
7282 # implementation simplified it as `a'. (Note that the sub/
7283 # directory does not even exist.)
7284 #
7285 # This kind of VPATH rewriting seems hard to cancel. The
7286 # distdir.am hack against VPATH rewriting works only when no
7287 # simplification is done, i.e., for dependencies which are in
7288 # subdirectories, not in enclosing directories. Hence, in
7289 # the latter case we use a full path to make sure no VPATH
7290 # search occurs.
7291 $fullfile = '$(srcdir)/' . $fullfile
7292 if $dir =~ m,^\.\.(?:$|/),;
7294 push_dist_common ($fullfile);
7295 return 1;
7296 }
7297 return 0;
7298 }
7301 # If a file name appears as a key in this hash, then it has already
7302 # been checked for. This allows us not to report the same error more
7303 # than once.
7304 my %required_file_not_found = ();
7306 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7307 # --------------------------------------------------------------
7308 # Verify that the file must exist in $DIRECTORY, or install it.
7309 # $MYSTRICT is the strictness level at which this file becomes required.
7310 sub require_file_internal ($$$@)
7311 {
7312 my ($where, $mystrict, $dir, @files) = @_;
7314 foreach my $file (@files)
7315 {
7316 my $fullfile = "$dir/$file";
7317 my $found_it = 0;
7318 my $dangling_sym = 0;
7320 if (-l $fullfile && ! -f $fullfile)
7321 {
7322 $dangling_sym = 1;
7323 }
7324 elsif (dir_has_case_matching_file ($dir, $file))
7325 {
7326 $found_it = 1;
7327 maybe_push_required_file ($dir, $file, $fullfile);
7328 }
7330 # `--force-missing' only has an effect if `--add-missing' is
7331 # specified.
7332 if ($found_it && (! $add_missing || ! $force_missing))
7333 {
7334 next;
7335 }
7336 else
7337 {
7338 # If we've already looked for it, we're done. You might
7339 # wonder why we don't do this before searching for the
7340 # file. If we do that, then something like
7341 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7342 # DIST_COMMON.
7343 if (! $found_it)
7344 {
7345 next if defined $required_file_not_found{$fullfile};
7346 $required_file_not_found{$fullfile} = 1;
7347 }
7349 if ($strictness >= $mystrict)
7350 {
7351 if ($dangling_sym && $add_missing)
7352 {
7353 unlink ($fullfile);
7354 }
7356 my $trailer = '';
7357 my $suppress = 0;
7359 # Only install missing files according to our desired
7360 # strictness level.
7361 my $message = "required file `$fullfile' not found";
7362 if ($add_missing)
7363 {
7364 if (-f "$libdir/$file")
7365 {
7366 $suppress = 1;
7368 # Install the missing file. Symlink if we
7369 # can, copy if we must. Note: delete the file
7370 # first, in case it is a dangling symlink.
7371 $message = "installing `$fullfile'";
7372 # Windows Perl will hang if we try to delete a
7373 # file that doesn't exist.
7374 unlink ($fullfile) if -f $fullfile;
7375 if ($symlink_exists && ! $copy_missing)
7376 {
7377 if (! symlink ("$libdir/$file", $fullfile))
7378 {
7379 $suppress = 0;
7380 $trailer = "; error while making link: $!";
7381 }
7382 }
7383 elsif (system ('cp', "$libdir/$file", $fullfile))
7384 {
7385 $suppress = 0;
7386 $trailer = "\n error while copying";
7387 }
7388 reset_dir_cache ($dir);
7389 }
7391 if (! maybe_push_required_file (dirname ($fullfile),
7392 $file, $fullfile))
7393 {
7394 if (! $found_it && ! $automake_will_process_aux_dir)
7395 {
7396 # We have added the file but could not push it
7397 # into DIST_COMMON, probably because this is
7398 # an auxiliary file and we are not processing
7399 # the top level Makefile. Furthermore Automake
7400 # hasn't been asked to create the Makefile.in
7401 # that distributes the aux dir files.
7402 error ($where, 'Please make a full run of automake'
7403 . " so $fullfile gets distributed.");
7404 }
7405 }
7406 }
7407 else
7408 {
7409 $trailer = "\n `automake --add-missing' can install `$file'"
7410 if -f "$libdir/$file";
7411 }
7413 # If --force-missing was specified, and we have
7414 # actually found the file, then do nothing.
7415 next
7416 if $found_it && $force_missing;
7418 # If we couldn't install the file, but it is a target in
7419 # the Makefile, don't print anything. This allows files
7420 # like README, AUTHORS, or THANKS to be generated.
7421 next
7422 if !$suppress && rule $file;
7424 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
7425 }
7426 }
7427 }
7428 }
7430 # &require_file ($WHERE, $MYSTRICT, @FILES)
7431 # -----------------------------------------
7432 sub require_file ($$@)
7433 {
7434 my ($where, $mystrict, @files) = @_;
7435 require_file_internal ($where, $mystrict, $relative_dir, @files);
7436 }
7438 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7439 # -----------------------------------------------------------
7440 sub require_file_with_macro ($$$@)
7441 {
7442 my ($cond, $macro, $mystrict, @files) = @_;
7443 $macro = rvar ($macro) unless ref $macro;
7444 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7445 }
7447 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7448 # ----------------------------------------------------------------
7449 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7450 # must be in that directory. Otherwise expect it in the current directory.
7451 sub require_libsource_with_macro ($$$@)
7452 {
7453 my ($cond, $macro, $mystrict, @files) = @_;
7454 $macro = rvar ($macro) unless ref $macro;
7455 if ($config_libobj_dir)
7456 {
7457 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7458 $config_libobj_dir, @files);
7459 }
7460 else
7461 {
7462 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7463 }
7464 }
7466 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7467 # ----------------------------------------------
7468 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7469 sub require_conf_file ($$@)
7470 {
7471 my ($where, $mystrict, @files) = @_;
7472 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7473 }
7476 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7477 # ----------------------------------------------------------------
7478 sub require_conf_file_with_macro ($$$@)
7479 {
7480 my ($cond, $macro, $mystrict, @files) = @_;
7481 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7482 $mystrict, @files);
7483 }
7485 ################################################################
7487 # &require_build_directory ($DIRECTORY)
7488 # ------------------------------------
7489 # Emit rules to create $DIRECTORY if needed, and return
7490 # the file that any target requiring this directory should be made
7491 # dependent upon.
7492 # We don't want to emit the rule twice, and want to reuse it
7493 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7494 sub require_build_directory ($)
7495 {
7496 my $directory = shift;
7498 return $directory_map{$directory} if exists $directory_map{$directory};
7500 my $cdir = File::Spec->canonpath ($directory);
7502 if (exists $directory_map{$cdir})
7503 {
7504 my $stamp = $directory_map{$cdir};
7505 $directory_map{$directory} = $stamp;
7506 return $stamp;
7507 }
7509 my $dirstamp = "$cdir/\$(am__dirstamp)";
7511 $directory_map{$directory} = $dirstamp;
7512 $directory_map{$cdir} = $dirstamp;
7514 # Set a variable for the dirstamp basename.
7515 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7516 '$(am__leading_dot)dirstamp');
7518 # Directory must be removed by `make distclean'.
7519 $clean_files{$dirstamp} = DIST_CLEAN;
7521 $output_rules .= ("$dirstamp:\n"
7522 . "\t\@\$(MKDIR_P) $directory\n"
7523 . "\t\@: > $dirstamp\n");
7525 return $dirstamp;
7526 }
7528 # &require_build_directory_maybe ($FILE)
7529 # --------------------------------------
7530 # If $FILE lies in a subdirectory, emit a rule to create this
7531 # directory and return the file that $FILE should be made
7532 # dependent upon. Otherwise, just return the empty string.
7533 sub require_build_directory_maybe ($)
7534 {
7535 my $file = shift;
7536 my $directory = dirname ($file);
7538 if ($directory ne '.')
7539 {
7540 return require_build_directory ($directory);
7541 }
7542 else
7543 {
7544 return '';
7545 }
7546 }
7548 ################################################################
7550 # Push a list of files onto dist_common.
7551 sub push_dist_common
7552 {
7553 prog_error "push_dist_common run after handle_dist"
7554 if $handle_dist_run;
7555 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7556 '', INTERNAL, VAR_PRETTY);
7557 }
7560 ################################################################
7562 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7563 # ----------------------------------------------
7564 # Generate a Makefile.in given the name of the corresponding Makefile and
7565 # the name of the file output by config.status.
7566 sub generate_makefile ($$)
7567 {
7568 my ($makefile_am, $makefile_in) = @_;
7570 # Reset all the Makefile.am related variables.
7571 initialize_per_input;
7573 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7574 # warnings for this file. So hold any warning issued before
7575 # we have processed AUTOMAKE_OPTIONS.
7576 buffer_messages ('warning');
7578 # Name of input file ("Makefile.am") and output file
7579 # ("Makefile.in"). These have no directory components.
7580 $am_file_name = basename ($makefile_am);
7581 $in_file_name = basename ($makefile_in);
7583 # $OUTPUT is encoded. If it contains a ":" then the first element
7584 # is the real output file, and all remaining elements are input
7585 # files. We don't scan or otherwise deal with these input files,
7586 # other than to mark them as dependencies. See
7587 # &scan_autoconf_files for details.
7588 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7590 $relative_dir = dirname ($makefile);
7591 $am_relative_dir = dirname ($makefile_am);
7592 $topsrcdir = backname ($relative_dir);
7594 read_main_am_file ($makefile_am);
7595 if (handle_options)
7596 {
7597 # Process buffered warnings.
7598 flush_messages;
7599 # Fatal error. Just return, so we can continue with next file.
7600 return;
7601 }
7602 # Process buffered warnings.
7603 flush_messages;
7605 # There are a few install-related variables that you should not define.
7606 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7607 {
7608 my $v = var $var;
7609 if ($v)
7610 {
7611 my $def = $v->def (TRUE);
7612 prog_error "$var not defined in condition TRUE"
7613 unless $def;
7614 reject_var $var, "`$var' should not be defined"
7615 if $def->owner != VAR_AUTOMAKE;
7616 }
7617 }
7619 # Catch some obsolete variables.
7620 msg_var ('obsolete', 'INCLUDES',
7621 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
7622 if var ('INCLUDES');
7624 # Must do this after reading .am file.
7625 define_variable ('subdir', $relative_dir, INTERNAL);
7627 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7628 # recursive rules are enabled.
7629 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7630 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7632 # Check first, because we might modify some state.
7633 check_cygnus;
7634 check_gnu_standards;
7635 check_gnits_standards;
7637 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7638 handle_gettext;
7639 handle_libraries;
7640 handle_ltlibraries;
7641 handle_programs;
7642 handle_scripts;
7644 # These must be run after all the sources are scanned. They
7645 # use variables defined by &handle_libraries, &handle_ltlibraries,
7646 # or &handle_programs.
7647 handle_compile;
7648 handle_languages;
7649 handle_libtool;
7651 # Variables used by distdir.am and tags.am.
7652 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7653 if (! option 'no-dist')
7654 {
7655 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7656 }
7658 handle_multilib;
7659 handle_texinfo;
7660 handle_emacs_lisp;
7661 handle_python;
7662 handle_java;
7663 handle_man_pages;
7664 handle_data;
7665 handle_headers;
7666 handle_subdirs;
7667 handle_tags;
7668 handle_minor_options;
7669 # Must come after handle_programs so that %known_programs is up-to-date.
7670 handle_tests;
7672 # This must come after most other rules.
7673 handle_dist;
7675 handle_footer;
7676 do_check_merge_target;
7677 handle_all ($makefile);
7679 # FIXME: Gross!
7680 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7681 {
7682 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7683 }
7684 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7685 {
7686 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
7687 }
7689 handle_install;
7690 handle_clean ($makefile);
7691 handle_factored_dependencies;
7693 # Comes last, because all the above procedures may have
7694 # defined or overridden variables.
7695 $output_vars .= output_variables;
7697 check_typos;
7699 my ($out_file) = $output_directory . '/' . $makefile_in;
7701 if ($exit_code != 0)
7702 {
7703 verb "not writing $out_file because of earlier errors";
7704 return;
7705 }
7707 if (! -d ($output_directory . '/' . $am_relative_dir))
7708 {
7709 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
7710 }
7712 # We make sure that `all:' is the first target.
7713 my $output =
7714 "$output_vars$output_all$output_header$output_rules$output_trailer";
7716 # Decide whether we must update the output file or not.
7717 # We have to update in the following situations.
7718 # * $force_generation is set.
7719 # * any of the output dependencies is younger than the output
7720 # * the contents of the output is different (this can happen
7721 # if the project has been populated with a file listed in
7722 # @common_files since the last run).
7723 # Output's dependencies are split in two sets:
7724 # * dependencies which are also configure dependencies
7725 # These do not change between each Makefile.am
7726 # * other dependencies, specific to the Makefile.am being processed
7727 # (such as the Makefile.am itself, or any Makefile fragment
7728 # it includes).
7729 my $timestamp = mtime $out_file;
7730 if (! $force_generation
7731 && $configure_deps_greatest_timestamp < $timestamp
7732 && $output_deps_greatest_timestamp < $timestamp
7733 && $output eq contents ($out_file))
7734 {
7735 verb "$out_file unchanged";
7736 # No need to update.
7737 return;
7738 }
7740 if (-e $out_file)
7741 {
7742 unlink ($out_file)
7743 or fatal "cannot remove $out_file: $!\n";
7744 }
7746 my $gm_file = new Automake::XFile "> $out_file";
7747 verb "creating $out_file";
7748 print $gm_file $output;
7749 }
7751 ################################################################
7756 ################################################################
7758 # Print usage information.
7759 sub usage ()
7760 {
7761 print "Usage: $0 [OPTION] ... [Makefile]...
7763 Generate Makefile.in for configure from Makefile.am.
7765 Operation modes:
7766 --help print this help, then exit
7767 --version print version number, then exit
7768 -v, --verbose verbosely list files processed
7769 --no-force only update Makefile.in's that are out of date
7770 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
7772 Dependency tracking:
7773 -i, --ignore-deps disable dependency tracking code
7774 --include-deps enable dependency tracking code
7776 Flavors:
7777 --cygnus assume program is part of Cygnus-style tree
7778 --foreign set strictness to foreign
7779 --gnits set strictness to gnits
7780 --gnu set strictness to gnu
7782 Library files:
7783 -a, --add-missing add missing standard files to package
7784 --libdir=DIR directory storing library files
7785 -c, --copy with -a, copy missing files (default is symlink)
7786 -f, --force-missing force update of standard files
7788 ";
7789 Automake::ChannelDefs::usage;
7791 my ($last, @lcomm);
7792 $last = '';
7793 foreach my $iter (sort ((@common_files, @common_sometimes)))
7794 {
7795 push (@lcomm, $iter) unless $iter eq $last;
7796 $last = $iter;
7797 }
7799 my @four;
7800 print "\nFiles which are automatically distributed, if found:\n";
7801 format USAGE_FORMAT =
7802 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7803 $four[0], $four[1], $four[2], $four[3]
7804 .
7805 $~ = "USAGE_FORMAT";
7807 my $cols = 4;
7808 my $rows = int(@lcomm / $cols);
7809 my $rest = @lcomm % $cols;
7811 if ($rest)
7812 {
7813 $rows++;
7814 }
7815 else
7816 {
7817 $rest = $cols;
7818 }
7820 for (my $y = 0; $y < $rows; $y++)
7821 {
7822 @four = ("", "", "", "");
7823 for (my $x = 0; $x < $cols; $x++)
7824 {
7825 last if $y + 1 == $rows && $x == $rest;
7827 my $idx = (($x > $rest)
7828 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7829 : ($rows * $x));
7831 $idx += $y;
7832 $four[$x] = $lcomm[$idx];
7833 }
7834 write;
7835 }
7837 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7839 # --help always returns 0 per GNU standards.
7840 exit 0;
7841 }
7844 # &version ()
7845 # -----------
7846 # Print version information
7847 sub version ()
7848 {
7849 print <<EOF;
7850 automake (GNU $PACKAGE) $VERSION
7851 Copyright (C) 2008 Free Software Foundation, Inc.
7852 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
7853 This is free software: you are free to change and redistribute it.
7854 There is NO WARRANTY, to the extent permitted by law.
7856 Written by Tom Tromey <tromey\@redhat.com>
7857 and Alexandre Duret-Lutz <adl\@gnu.org>.
7858 EOF
7859 # --version always returns 0 per GNU standards.
7860 exit 0;
7861 }
7863 ################################################################
7865 # Parse command line.
7866 sub parse_arguments ()
7867 {
7868 # Start off as gnu.
7869 set_strictness ('gnu');
7871 my $cli_where = new Automake::Location;
7872 my %cli_options =
7873 (
7874 'libdir=s' => \$libdir,
7875 'gnu' => sub { set_strictness ('gnu'); },
7876 'gnits' => sub { set_strictness ('gnits'); },
7877 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7878 'foreign' => sub { set_strictness ('foreign'); },
7879 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7880 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7881 $cli_where); },
7882 'no-force' => sub { $force_generation = 0; },
7883 'f|force-missing' => \$force_missing,
7884 'o|output-dir=s' => \$output_directory,
7885 'a|add-missing' => \$add_missing,
7886 'c|copy' => \$copy_missing,
7887 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7888 'W|warnings=s' => \&parse_warnings,
7889 # These long options (--Werror and --Wno-error) for backward
7890 # compatibility. Use -Werror and -Wno-error today.
7891 'Werror' => sub { parse_warnings 'W', 'error'; },
7892 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7893 );
7894 use Getopt::Long;
7895 Getopt::Long::config ("bundling", "pass_through");
7897 # See if --version or --help is used. We want to process these before
7898 # anything else because the GNU Coding Standards require us to
7899 # `exit 0' after processing these options, and we can't guarantee this
7900 # if we treat other options first. (Handling other options first
7901 # could produce error diagnostics, and in this condition it is
7902 # confusing if Automake does `exit 0'.)
7903 my %cli_options_1st_pass =
7904 (
7905 'version' => \&version,
7906 'help' => \&usage,
7907 # Recognize all other options (and their arguments) but do nothing.
7908 map { $_ => sub {} } (keys %cli_options)
7909 );
7910 my @ARGV_backup = @ARGV;
7911 Getopt::Long::GetOptions %cli_options_1st_pass
7912 or exit 1;
7913 @ARGV = @ARGV_backup;
7915 # Now *really* process the options. This time we know that --help
7916 # and --version are not present, but we specify them nonetheless so
7917 # that ambiguous abbreviation are diagnosed.
7918 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
7919 or exit 1;
7921 if (defined $output_directory)
7922 {
7923 msg 'obsolete', "`--output-dir' is deprecated\n";
7924 }
7925 else
7926 {
7927 # In the next release we'll remove this entirely.
7928 $output_directory = '.';
7929 }
7931 return unless @ARGV;
7933 if ($ARGV[0] =~ /^-./)
7934 {
7935 my %argopts;
7936 for my $k (keys %cli_options)
7937 {
7938 if ($k =~ /(.*)=s$/)
7939 {
7940 map { $argopts{(length ($_) == 1)
7941 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
7942 }
7943 }
7944 if ($ARGV[0] eq '--')
7945 {
7946 shift @ARGV;
7947 }
7948 elsif (exists $argopts{$ARGV[0]})
7949 {
7950 fatal ("option `$ARGV[0]' requires an argument\n"
7951 . "Try `$0 --help' for more information.");
7952 }
7953 else
7954 {
7955 fatal ("unrecognized option `$ARGV[0]'.\n"
7956 . "Try `$0 --help' for more information.");
7957 }
7958 }
7960 my $errspec = 0;
7961 foreach my $arg (@ARGV)
7962 {
7963 fatal ("empty argument\nTry `$0 --help' for more information.")
7964 if ($arg eq '');
7966 # Handle $local:$input syntax.
7967 my ($local, @rest) = split (/:/, $arg);
7968 @rest = ("$local.in",) unless @rest;
7969 my $input = locate_am @rest;
7970 if ($input)
7971 {
7972 push @input_files, $input;
7973 $output_files{$input} = join (':', ($local, @rest));
7974 }
7975 else
7976 {
7977 error "no Automake input file found for `$arg'";
7978 $errspec = 1;
7979 }
7980 }
7981 fatal "no input file found among supplied arguments"
7982 if $errspec && ! @input_files;
7983 }
7985 ################################################################
7987 # Parse the WARNINGS environment variable.
7988 parse_WARNINGS;
7990 # Parse command line.
7991 parse_arguments;
7993 $configure_ac = require_configure_ac;
7995 # Do configure.ac scan only once.
7996 scan_autoconf_files;
7998 if (! @input_files)
7999 {
8000 my $msg = '';
8001 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8002 if -f 'Makefile.am';
8003 fatal ("no `Makefile.am' found for any configure output$msg");
8004 }
8006 # Now do all the work on each file.
8007 foreach my $file (@input_files)
8008 {
8009 ($am_file = $file) =~ s/\.in$//;
8010 if (! -f ($am_file . '.am'))
8011 {
8012 error "`$am_file.am' does not exist";
8013 }
8014 else
8015 {
8016 # Any warning setting now local to this Makefile.am.
8017 dup_channel_setup;
8019 generate_makefile ($am_file . '.am', $file);
8021 # Back out any warning setting.
8022 drop_channel_setup;
8023 }
8024 }
8026 exit $exit_code;
8029 ### Setup "GNU" style for perl-mode and cperl-mode.
8030 ## Local Variables:
8031 ## perl-indent-level: 2
8032 ## perl-continued-statement-offset: 2
8033 ## perl-continued-brace-offset: 0
8034 ## perl-brace-offset: 0
8035 ## perl-brace-imaginary-offset: 0
8036 ## perl-label-offset: -2
8037 ## cperl-indent-level: 2
8038 ## cperl-brace-offset: 0
8039 ## cperl-continued-brace-offset: 0
8040 ## cperl-label-offset: -2
8041 ## cperl-extra-newline-before-brace: t
8042 ## cperl-merge-trailing-else: nil
8043 ## cperl-continued-statement-offset: 2
8044 ## End: