5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
13 # This program is free software; you can redistribute it and/or modify
14 # it under the terms of the GNU General Public License as published by
15 # the Free Software Foundation; either version 2, or (at your option)
18 # This program is distributed in the hope that it will be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 # GNU General Public License for more details.
23 # You should have received a copy of the GNU General Public License
24 # along with this program. If not, see <http://www.gnu.org/licenses/>.
26 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
27 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
28 # Alexandre Duret-Lutz <adl@gnu.org>.
34 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
35 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the `if DJGPP' guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
48 struct (# Short name of the language (c, f77...).
50 # Nice name of the language (C, Fortran 77...).
53 # List of configure variables which must be defined.
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
64 # Name of the compiling variable (COMPILE).
66 # Content of the compiling variable.
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
74 'output_extensions' => "\$",
75 # A list of flag variables used in 'compile'.
79 # Any tag to pass to libtool while compiling.
80 'libtool_tag' => "\$",
82 # The file to use when generating rules for this language.
83 # The default is 'depend2'.
86 # Name of the linking variable (LINK).
88 # Content of the linking variable.
91 # Name of the compiler variable (CC).
94 # Name of the linker variable (LD).
96 # Content of the linker variable ($(CC)).
99 # Flag to specify the output file (-o).
100 'output_flag' => "\$",
103 # This is a subroutine which is called whenever we finally
104 # determine the context in which a source file will be
106 '_target_hook' => "\$",
108 # If TRUE, nodist_ sources will be compiled using specific rules
109 # (i.e. not inference rules). The default is FALSE.
110 'nodist_specific' => "\$");
116 if (defined $self->_finish)
118 &{$self->_finish} (@_);
122 sub target_hook ($$$$%)
125 if (defined $self->_target_hook)
127 &{$self->_target_hook} (@_);
134 use Automake::Config;
141 require Thread::Queue;
142 import Thread::Queue;
145 use Automake::General;
147 use Automake::Channels;
148 use Automake::ChannelDefs;
149 use Automake::Configure_ac;
150 use Automake::FileUtils;
151 use Automake::Location;
152 use Automake::Condition qw/TRUE FALSE/;
153 use Automake::DisjConditions;
154 use Automake::Options;
155 use Automake::Version;
156 use Automake::Variable;
157 use Automake::VarDef;
159 use Automake::RuleDef;
160 use Automake::Wrap 'makefile_wrap';
169 # Some regular expressions. One reason to put them here is that it
170 # makes indentation work better in Emacs.
172 # Writing singled-quoted-$-terminated regexes is a pain because
173 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
174 # by a closing quote. Letting perl-mode think the quote is not closed
175 # leads to all sort of misindentations. On the other hand, defining
176 # regexes as double-quoted strings is far less readable. So usually
179 # $REGEX = '^regex_value' . "\$";
181 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
182 my $WHITE_PATTERN = '^\s*' . "\$";
183 my $COMMENT_PATTERN = '^#';
184 my $TARGET_PATTERN='[$a-zA-Z0-9_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
185 # A rule has three parts: a list of targets, a list of dependencies,
186 # and optionally actions.
188 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
190 # Only recognize leading spaces, not leading tabs. If we recognize
191 # leading tabs here then we need to make the reader smarter, because
192 # otherwise it will think rules like `foo=bar; \' are errors.
193 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
194 # This pattern recognizes a Gnits version id and sets $1 if the
195 # release is an alpha release. We also allow a suffix which can be
196 # used to extend the version number with a "fork" identifier.
197 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
199 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
201 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
203 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
204 my $PATH_PATTERN = '(\w|[+/.-])+';
205 # This will pass through anything not of the prescribed form.
206 my $INCLUDE_PATTERN = ('^include\s+'
207 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
208 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
209 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
211 # Match `-d' as a command-line argument in a string.
212 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
213 # Directories installed during 'install-exec' phase.
214 my $EXEC_DIR_PATTERN =
215 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
217 # Values for AC_CANONICAL_*
218 use constant AC_CANONICAL_BUILD => 1;
219 use constant AC_CANONICAL_HOST => 2;
220 use constant AC_CANONICAL_TARGET => 3;
222 # Values indicating when something should be cleaned.
223 use constant MOSTLY_CLEAN => 0;
224 use constant CLEAN => 1;
225 use constant DIST_CLEAN => 2;
226 use constant MAINTAINER_CLEAN => 3;
229 my @libtool_files = qw(ltmain.sh config.guess config.sub);
230 # ltconfig appears here for compatibility with old versions of libtool.
231 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
233 # Commonly found files we look for and automatically include in
236 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
237 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
238 ansi2knr.1 ansi2knr.c ar-lib compile config.guess config.rpath
239 config.sub depcomp elisp-comp install-sh libversion.in mdate-sh
240 missing mkinstalldirs py-compile texinfo.tex ylwrap),
241 @libtool_files, @libtool_sometimes);
243 # Commonly used files we auto-include, but only sometimes. This list
244 # is used for the --help output only.
245 my @common_sometimes =
246 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
247 configure.ac configure.in stamp-vti);
249 # Standard directories from the GNU Coding Standards, and additional
250 # pkg* directories from Automake. Stored in a hash for fast member check.
251 my %standard_prefix =
252 map { $_ => 1 } (qw(bin data dataroot doc dvi exec html include info
253 lib libexec lisp locale localstate man man1 man2
254 man3 man4 man5 man6 man7 man8 man9 oldinclude pdf
255 pkgdata pkginclude pkglib pkglibexec ps sbin
256 sharedstate sysconf));
258 # Copyright on generated Makefile.ins.
259 my $gen_copyright = "\
260 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
261 # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
263 # This Makefile.in is free software; the Free Software Foundation
264 # gives unlimited permission to copy and/or distribute it,
265 # with or without modifications, as long as this notice is preserved.
267 # This program is distributed in the hope that it will be useful,
268 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
269 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
270 # PARTICULAR PURPOSE.
273 # These constants are returned by the lang_*_rewrite functions.
274 # LANG_SUBDIR means that the resulting object file should be in a
275 # subdir if the source file is. In this case the file name cannot
276 # have `..' components.
277 use constant LANG_IGNORE => 0;
278 use constant LANG_PROCESS => 1;
279 use constant LANG_SUBDIR => 2;
281 # These are used when keeping track of whether an object can be built
282 # by two different paths.
283 use constant COMPILE_LIBTOOL => 1;
284 use constant COMPILE_ORDINARY => 2;
286 # We can't always associate a location to a variable or a rule,
287 # when it's defined by Automake. We use INTERNAL in this case.
288 use constant INTERNAL => new Automake::Location;
290 # Serialization keys for message queues.
291 use constant QUEUE_MESSAGE => "msg";
292 use constant QUEUE_CONF_FILE => "conf file";
293 use constant QUEUE_LOCATION => "location";
294 use constant QUEUE_STRING => "string";
297 ## ---------------------------------- ##
298 ## Variables related to the options. ##
299 ## ---------------------------------- ##
301 # TRUE if we should always generate Makefile.in.
302 my $force_generation = 1;
304 # From the Perl manual.
305 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
307 # TRUE if missing standard files should be installed.
310 # TRUE if we should copy missing files; otherwise symlink if possible.
311 my $copy_missing = 0;
313 # TRUE if we should always update files that we know about.
314 my $force_missing = 0;
317 ## ---------------------------------------- ##
318 ## Variables filled during files scanning. ##
319 ## ---------------------------------------- ##
321 # Name of the configure.ac file.
324 # Files found by scanning configure.ac for LIBOBJS.
327 # Names used in AC_CONFIG_HEADER call.
328 my @config_headers = ();
330 # Names used in AC_CONFIG_LINKS call.
331 my @config_links = ();
333 # Directory where output files go. Actually, output files are
334 # relative to this directory.
335 my $output_directory;
337 # List of Makefile.am's to process, and their corresponding outputs.
338 my @input_files = ();
339 my %output_files = ();
341 # Complete list of Makefile.am's that exist.
342 my @configure_input_files = ();
344 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
346 my @other_input_files = ();
347 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
348 # The keys are the files created by these macros.
349 my %ac_config_files_location = ();
350 # The condition under which AC_CONFIG_FOOS appears.
351 my %ac_config_files_condition = ();
353 # Directory to search for configure-required files. This
354 # will be computed by &locate_aux_dir and can be set using
355 # AC_CONFIG_AUX_DIR in configure.ac.
356 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
357 my $config_aux_dir = '';
358 my $config_aux_dir_set_in_configure_ac = 0;
359 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
361 my $am_config_aux_dir = '';
363 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
365 my $config_libobj_dir = '';
367 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
368 my $seen_gettext = 0;
369 # Whether AM_GNU_GETTEXT([external]) is used.
370 my $seen_gettext_external = 0;
371 # Where AM_GNU_GETTEXT appears.
372 my $ac_gettext_location;
373 # Whether AM_GNU_GETTEXT_INTL_SUBDIR has been seen.
374 my $seen_gettext_intl = 0;
376 # Lists of tags supported by Libtool.
377 my %libtool_tags = ();
378 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
379 # uses AC_REQUIRE_AUX_FILE.
380 my $libtool_new_api = 0;
382 # Most important AC_CANONICAL_* macro seen so far.
383 my $seen_canonical = 0;
384 # Location of that macro.
385 my $canonical_location;
387 # Where AM_MAINTAINER_MODE appears.
390 # Actual version we've seen.
391 my $package_version = '';
393 # Where version is defined.
394 my $package_version_location;
396 # TRUE if we've seen AM_ENABLE_MULTILIB.
397 my $seen_multilib = 0;
399 # TRUE if we've seen AM_PROG_AR
402 # TRUE if we've seen AM_PROG_CC_C_O
405 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
406 my %required_aux_file = ();
408 # Where AM_INIT_AUTOMAKE is called;
409 my $seen_init_automake = 0;
411 # TRUE if we've seen AM_AUTOMAKE_VERSION.
412 my $seen_automake_version = 0;
414 # Hash table of discovered configure substitutions. Keys are names,
415 # values are `FILE:LINE' strings which are used by error message
417 my %configure_vars = ();
419 # Ignored configure substitutions (i.e., variables not to be output in
421 my %ignored_configure_vars = ();
423 # Files included by $configure_ac.
424 my @configure_deps = ();
426 # Greatest timestamp of configure's dependencies.
427 my $configure_deps_greatest_timestamp = 0;
429 # Hash table of AM_CONDITIONAL variables seen in configure.
430 my %configure_cond = ();
432 # This maps extensions onto language names.
433 my %extension_map = ();
435 # List of the DIST_COMMON files we discovered while reading
437 my $configure_dist_common = '';
439 # This maps languages names onto objects.
441 # Maps each linker variable onto a language object.
442 my %link_languages = ();
444 # maps extensions to needed source flags.
445 my %sourceflags = ();
447 # List of targets we must always output.
448 # FIXME: Complete, and remove falsely required targets.
449 my %required_targets =
462 # FIXME: Not required, temporary hacks.
463 # Well, actually they are sort of required: the -recursive
464 # targets will run them anyway...
470 'install-data-am' => 1,
471 'install-exec-am' => 1,
472 'install-html-am' => 1,
473 'install-dvi-am' => 1,
474 'install-pdf-am' => 1,
475 'install-ps-am' => 1,
476 'install-info-am' => 1,
477 'installcheck-am' => 1,
483 # Set to 1 if this run will create the Makefile.in that distributes
484 # the files in config_aux_dir.
485 my $automake_will_process_aux_dir = 0;
487 # The name of the Makefile currently being processed.
491 ################################################################
493 ## ------------------------------------------ ##
494 ## Variables reset by &initialize_per_input. ##
495 ## ------------------------------------------ ##
497 # Basename and relative dir of the input file.
501 # Same but wrt Makefile.in.
505 # Relative path to the top directory.
508 # Greatest timestamp of the output's dependencies (excluding
509 # configure's dependencies).
510 my $output_deps_greatest_timestamp;
512 # These variables are used when generating each Makefile.in.
513 # They hold the Makefile.in until it is ready to be printed.
520 # This is the conditional stack, updated on if/else/endif, and
521 # used to build Condition objects.
524 # This holds the set of included files.
527 # List of dependencies for the obvious targets.
532 # Keys in this hash table are files to delete. The associated
533 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
536 # Keys in this hash table are object files or other files in
537 # subdirectories which need to be removed. This only holds files
538 # which are created by compilations. The value in the hash indicates
539 # when the file should be removed.
540 my %compile_clean_files;
542 # Keys in this hash table are directories where we expect to build a
543 # libtool object. We use this information to decide what directories
545 my %libtool_clean_directories;
547 # Value of `$(SOURCES)', used by tags.am.
549 # Sources which go in the distribution.
552 # This hash maps object file names onto their corresponding source
553 # file names. This is used to ensure that each object is created
554 # by a single source file.
557 # This hash maps object file names onto an integer value representing
558 # whether this object has been built via ordinary compilation or
559 # libtool compilation (the COMPILE_* constants).
560 my %object_compilation_map;
563 # This keeps track of the directories for which we've already
564 # created dirstamp code. Keys are directories, values are stamp files.
565 # Several keys can share the same stamp files if they are equivalent
566 # (as are `.//foo' and `foo').
572 # This is a list of all targets to run during "make dist".
575 # Keep track of all programs declared in this Makefile, without
576 # $(EXEEXT). @substitutions@ are not listed.
580 # Keys in this hash are the basenames of files which must depend on
581 # ansi2knr. Values are either the empty string, or the directory in
582 # which the ANSI source file appears; the directory must have a
586 # This keeps track of which extensions we've seen (that we care
590 # This is random scratch space for the language finish functions.
591 # Don't randomly overwrite it; examine other uses of keys first.
592 my %language_scratch;
594 # We keep track of which objects need special (per-executable)
595 # handling on a per-language basis.
596 my %lang_specific_files;
598 # This is set when `handle_dist' has finished. Once this happens,
599 # we should no longer push on dist_common.
602 # Used to store a set of linkers needed to generate the sources currently
603 # under consideration.
606 # True if we need `LINK' defined. This is a hack.
609 # Was get_object_extension run?
610 # FIXME: This is a hack. a better switch should be found.
611 my $get_object_extension_was_run;
613 # Record each file processed by make_paragraphs.
614 my %transformed_files;
617 ################################################################
619 ## ---------------------------------------------- ##
620 ## Variables not reset by &initialize_per_input. ##
621 ## ---------------------------------------------- ##
623 # Cache each file processed by make_paragraphs.
624 # (This is different from %transformed_files because
625 # %transformed_files is reset for each file while %am_file_cache
626 # it global to the run.)
629 ################################################################
631 # var_SUFFIXES_trigger ($TYPE, $VALUE)
632 # ------------------------------------
633 # This is called by Automake::Variable::define() when SUFFIXES
634 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
635 # The work here needs to be performed as a side-effect of the
636 # macro_define() call because SUFFIXES definitions impact
637 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
639 sub var_SUFFIXES_trigger ($$)
641 my ($type, $value) = @_;
642 accept_extensions (split (' ', $value));
644 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
646 ################################################################
648 ## --------------------------------- ##
649 ## Forward subroutine declarations. ##
650 ## --------------------------------- ##
651 sub register_language (%);
652 sub file_contents_internal ($$$%);
653 sub define_files_variable ($\@$$);
656 # &initialize_per_input ()
657 # ------------------------
658 # (Re)-Initialize per-Makefile.am variables.
659 sub initialize_per_input ()
661 reset_local_duplicates ();
663 $am_file_name = undef;
664 $am_relative_dir = undef;
666 $in_file_name = undef;
667 $relative_dir = undef;
670 $output_deps_greatest_timestamp = 0;
676 $output_trailer = '';
678 Automake::Options::reset;
679 Automake::Variable::reset;
680 Automake::Rule::reset;
691 %compile_clean_files = ();
693 # We always include `.'. This isn't strictly correct.
694 %libtool_clean_directories = ('.' => 1);
700 %object_compilation_map = ();
708 %known_programs = ();
709 %known_libraries= ();
713 %extension_seen = ();
715 %language_scratch = ();
717 %lang_specific_files = ();
719 $handle_dist_run = 0;
723 $get_object_extension_was_run = 0;
725 %transformed_files = ();
729 ################################################################
731 # Initialize our list of languages that are internally supported.
734 register_language ('name' => 'c',
736 'config_vars' => ['CC'],
739 'flags' => ['CFLAGS', 'CPPFLAGS'],
741 'compiler' => 'COMPILE',
742 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
746 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
747 'compile_flag' => '-c',
748 'libtool_tag' => 'CC',
749 'extensions' => ['.c'],
750 '_finish' => \&lang_c_finish);
753 register_language ('name' => 'cxx',
755 'config_vars' => ['CXX'],
756 'linker' => 'CXXLINK',
757 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
759 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
760 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
762 'compiler' => 'CXXCOMPILE',
763 'compile_flag' => '-c',
764 'output_flag' => '-o',
765 'libtool_tag' => 'CXX',
769 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
772 register_language ('name' => 'objc',
773 'Name' => 'Objective C',
774 'config_vars' => ['OBJC'],
775 'linker' => 'OBJCLINK',
776 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
778 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
779 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
781 'compiler' => 'OBJCCOMPILE',
782 'compile_flag' => '-c',
783 'output_flag' => '-o',
787 'extensions' => ['.m']);
789 # Unified Parallel C.
790 register_language ('name' => 'upc',
791 'Name' => 'Unified Parallel C',
792 'config_vars' => ['UPC'],
793 'linker' => 'UPCLINK',
794 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
796 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
797 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
799 'compiler' => 'UPCCOMPILE',
800 'compile_flag' => '-c',
801 'output_flag' => '-o',
805 'extensions' => ['.upc']);
808 register_language ('name' => 'header',
810 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
813 'output_extensions' => sub { return () },
815 '_finish' => sub { });
818 register_language ('name' => 'vala',
820 'config_vars' => ['VALAC'],
822 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
824 'compiler' => 'VALACOMPILE',
825 'extensions' => ['.vala'],
826 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
828 'rule_file' => 'vala',
829 '_finish' => \&lang_vala_finish,
830 '_target_hook' => \&lang_vala_target_hook,
831 'nodist_specific' => 1);
834 register_language ('name' => 'yacc',
836 'config_vars' => ['YACC'],
837 'flags' => ['YFLAGS'],
838 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
840 'compiler' => 'YACCCOMPILE',
841 'extensions' => ['.y'],
842 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
844 'rule_file' => 'yacc',
845 '_finish' => \&lang_yacc_finish,
846 '_target_hook' => \&lang_yacc_target_hook,
847 'nodist_specific' => 1);
848 register_language ('name' => 'yaccxx',
849 'Name' => 'Yacc (C++)',
850 'config_vars' => ['YACC'],
851 'rule_file' => 'yacc',
852 'flags' => ['YFLAGS'],
854 'compiler' => 'YACCCOMPILE',
855 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
856 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
857 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
859 '_finish' => \&lang_yacc_finish,
860 '_target_hook' => \&lang_yacc_target_hook,
861 'nodist_specific' => 1);
864 register_language ('name' => 'lex',
866 'config_vars' => ['LEX'],
867 'rule_file' => 'lex',
868 'flags' => ['LFLAGS'],
869 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
871 'compiler' => 'LEXCOMPILE',
872 'extensions' => ['.l'],
873 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
875 '_finish' => \&lang_lex_finish,
876 '_target_hook' => \&lang_lex_target_hook,
877 'nodist_specific' => 1);
878 register_language ('name' => 'lexxx',
879 'Name' => 'Lex (C++)',
880 'config_vars' => ['LEX'],
881 'rule_file' => 'lex',
882 'flags' => ['LFLAGS'],
883 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
885 'compiler' => 'LEXCOMPILE',
886 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
887 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
889 '_finish' => \&lang_lex_finish,
890 '_target_hook' => \&lang_lex_target_hook,
891 'nodist_specific' => 1);
894 register_language ('name' => 'asm',
895 'Name' => 'Assembler',
896 'config_vars' => ['CCAS', 'CCASFLAGS'],
898 'flags' => ['CCASFLAGS'],
899 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
900 # or anything else required. They can also set CCAS.
901 # Or simply use Preprocessed Assembler.
902 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
904 'compiler' => 'CCASCOMPILE',
905 'compile_flag' => '-c',
906 'output_flag' => '-o',
907 'extensions' => ['.s'],
909 # With assembly we still use the C linker.
910 '_finish' => \&lang_c_finish);
912 # Preprocessed Assembler.
913 register_language ('name' => 'cppasm',
914 'Name' => 'Preprocessed Assembler',
915 'config_vars' => ['CCAS', 'CCASFLAGS'],
918 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
919 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
921 'compiler' => 'CPPASCOMPILE',
922 'compile_flag' => '-c',
923 'output_flag' => '-o',
924 'extensions' => ['.S', '.sx'],
926 # With assembly we still use the C linker.
927 '_finish' => \&lang_c_finish);
930 register_language ('name' => 'f77',
931 'Name' => 'Fortran 77',
932 'config_vars' => ['F77'],
933 'linker' => 'F77LINK',
934 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
935 'flags' => ['FFLAGS'],
936 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
938 'compiler' => 'F77COMPILE',
939 'compile_flag' => '-c',
940 'output_flag' => '-o',
941 'libtool_tag' => 'F77',
945 'extensions' => ['.f', '.for']);
948 register_language ('name' => 'fc',
950 'config_vars' => ['FC'],
951 'linker' => 'FCLINK',
952 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
953 'flags' => ['FCFLAGS'],
954 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
956 'compiler' => 'FCCOMPILE',
957 'compile_flag' => '-c',
958 'output_flag' => '-o',
959 'libtool_tag' => 'FC',
963 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
965 # Preprocessed Fortran
966 register_language ('name' => 'ppfc',
967 'Name' => 'Preprocessed Fortran',
968 'config_vars' => ['FC'],
969 'linker' => 'FCLINK',
970 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
973 'flags' => ['FCFLAGS', 'CPPFLAGS'],
975 'compiler' => 'PPFCCOMPILE',
976 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
977 'compile_flag' => '-c',
978 'output_flag' => '-o',
979 'libtool_tag' => 'FC',
981 'extensions' => ['.F90','.F95', '.F03', '.F08']);
983 # Preprocessed Fortran 77
985 # The current support for preprocessing Fortran 77 just involves
986 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
987 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
988 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
989 # for `make' Version 3.76 Beta' (specifically, from info file
990 # `(make)Catalogue of Rules').
992 # A better approach would be to write an Autoconf test
993 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
994 # Fortran 77 compilers know how to do preprocessing. The Autoconf
995 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
996 # preprocessing capabilities, and then fall back on cpp (if cpp were
998 register_language ('name' => 'ppf77',
999 'Name' => 'Preprocessed Fortran 77',
1000 'config_vars' => ['F77'],
1001 'linker' => 'F77LINK',
1002 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1005 'flags' => ['FFLAGS', 'CPPFLAGS'],
1007 'compiler' => 'PPF77COMPILE',
1008 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
1009 'compile_flag' => '-c',
1010 'output_flag' => '-o',
1011 'libtool_tag' => 'F77',
1013 'extensions' => ['.F']);
1016 register_language ('name' => 'ratfor',
1018 'config_vars' => ['F77'],
1019 'linker' => 'F77LINK',
1020 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1023 'flags' => ['RFLAGS', 'FFLAGS'],
1024 # FIXME also FFLAGS.
1025 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1027 'compiler' => 'RCOMPILE',
1028 'compile_flag' => '-c',
1029 'output_flag' => '-o',
1030 'libtool_tag' => 'F77',
1032 'extensions' => ['.r']);
1035 register_language ('name' => 'java',
1037 'config_vars' => ['GCJ'],
1038 'linker' => 'GCJLINK',
1039 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1041 'flags' => ['GCJFLAGS'],
1042 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1044 'compiler' => 'GCJCOMPILE',
1045 'compile_flag' => '-c',
1046 'output_flag' => '-o',
1047 'libtool_tag' => 'GCJ',
1051 'extensions' => ['.java', '.class', '.zip', '.jar']);
1053 ################################################################
1055 # Error reporting functions.
1057 # err_am ($MESSAGE, [%OPTIONS])
1058 # -----------------------------
1059 # Uncategorized errors about the current Makefile.am.
1062 msg_am ('error', @_);
1065 # err_ac ($MESSAGE, [%OPTIONS])
1066 # -----------------------------
1067 # Uncategorized errors about configure.ac.
1070 msg_ac ('error', @_);
1073 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1074 # ---------------------------------------
1075 # Messages about about the current Makefile.am.
1078 my ($channel, $msg, %opts) = @_;
1079 msg $channel, "${am_file}.am", $msg, %opts;
1082 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1083 # ---------------------------------------
1084 # Messages about about configure.ac.
1087 my ($channel, $msg, %opts) = @_;
1088 msg $channel, $configure_ac, $msg, %opts;
1091 ################################################################
1095 # Return a configure-style substitution using the indicated text.
1096 # We do this to avoid having the substitutions directly in automake.in;
1097 # when we do that they are sometimes removed and this causes confusion
1102 return '@' . $text . '@';
1105 ################################################################
1109 # &backname ($REL-DIR)
1110 # --------------------
1111 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1112 # For instance `src/foo' => `../..'.
1113 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1118 foreach (split (/\//, $file))
1120 next if $_ eq '.' || $_ eq '';
1124 or prog_error ("trying to reverse path `$file' pointing outside tree");
1131 return join ('/', @res) || '.';
1134 ################################################################
1136 # `silent-rules' mode handling functions.
1138 # verbose_var (NAME)
1139 # ------------------
1140 # The public variable stem used to implement `silent-rules'.
1144 return 'AM_V_' . $name;
1147 # verbose_private_var (NAME)
1148 # --------------------------
1149 # The naming policy for the private variables for `silent-rules'.
1150 sub verbose_private_var ($)
1153 return 'am__v_' . $name;
1156 # define_verbose_var (NAME, VAL)
1157 # ------------------------------
1158 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1159 sub define_verbose_var ($$)
1161 my ($name, $val) = @_;
1162 my $var = verbose_var ($name);
1163 my $pvar = verbose_private_var ($name);
1164 my $silent_var = $pvar . '_0';
1165 if (option 'silent-rules')
1167 # Using `$V' instead of `$(V)' breaks IRIX make.
1168 define_variable ($var, '$(' . $pvar . '_$(V))', INTERNAL);
1169 define_variable ($pvar . '_', '$(' . $pvar . '_$(AM_DEFAULT_VERBOSITY))', INTERNAL);
1170 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1171 '', INTERNAL, VAR_ASIS)
1172 if (! vardef ($silent_var, TRUE));
1176 # Above should not be needed in the general automake code.
1178 # verbose_flag (NAME)
1179 # -------------------
1180 # Contents of %VERBOSE%: variable to expand before rule command.
1181 sub verbose_flag ($)
1184 return '$(' . verbose_var ($name) . ')'
1185 if (option 'silent-rules');
1189 sub verbose_nodep_flag ($)
1192 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1193 if (option 'silent-rules');
1199 # Contents of %SILENT%: variable to expand to `@' when silent.
1202 return verbose_flag ('at');
1205 # define_verbose_tagvar (NAME)
1206 # ----------------------------
1207 # Engage the needed `silent-rules' machinery for tag NAME.
1208 sub define_verbose_tagvar ($)
1211 if (option 'silent-rules')
1213 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1214 define_verbose_var ('at', '@');
1218 # define_verbose_libtool
1219 # ----------------------
1220 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1221 sub define_verbose_libtool ()
1223 define_verbose_var ('lt', '--silent');
1224 return verbose_flag ('lt');
1228 ################################################################
1231 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1234 my $var = var ('AUTOMAKE_OPTIONS');
1237 if ($var->has_conditional_contents)
1239 msg_var ('unsupported', $var,
1240 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1242 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1245 my ($loc, $value) = @$locvals;
1246 return 1 if (process_option_list ($loc, $value))
1250 # Override portability-recursive warning.
1251 switch_warning ('no-portability-recursive')
1252 if option 'silent-rules';
1254 if ($strictness == GNITS)
1256 set_option ('readme-alpha', INTERNAL);
1257 set_option ('std-options', INTERNAL);
1258 set_option ('check-news', INTERNAL);
1264 # shadow_unconditionally ($varname, $where)
1265 # -----------------------------------------
1266 # Return a $(variable) that contains all possible values
1267 # $varname can take.
1268 # If the VAR wasn't defined conditionally, return $(VAR).
1269 # Otherwise we create an am__VAR_DIST variable which contains
1270 # all possible values, and return $(am__VAR_DIST).
1271 sub shadow_unconditionally ($$)
1273 my ($varname, $where) = @_;
1274 my $var = var $varname;
1275 if ($var->has_conditional_contents)
1277 $varname = "am__${varname}_DIST";
1278 my @files = uniq ($var->value_as_list_recursive);
1279 define_pretty_variable ($varname, TRUE, $where, @files);
1281 return "\$($varname)"
1284 # get_object_extension ($EXTENSION)
1285 # ---------------------------------
1286 # Prefix $EXTENSION with $U if ansi2knr is in use.
1287 sub get_object_extension ($)
1289 my ($extension) = @_;
1291 # Check for automatic de-ANSI-fication.
1292 $extension = '$U' . $extension
1293 if option 'ansi2knr';
1295 $get_object_extension_was_run = 1;
1300 # check_user_variables (@LIST)
1301 # ----------------------------
1302 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1304 sub check_user_variables (@)
1306 my @dont_override = @_;
1307 foreach my $flag (@dont_override)
1309 my $var = var $flag;
1312 for my $cond ($var->conditions->conds)
1314 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1316 msg_cond_var ('gnu', $cond, $flag,
1317 "`$flag' is a user variable, "
1318 . "you should not override it;\n"
1319 . "use `AM_$flag' instead.");
1326 # Call finish function for each language that was used.
1327 sub handle_languages
1329 if (! option 'no-dependencies')
1331 # Include auto-dep code. Don't include it if DEP_FILES would
1333 if (&saw_sources_p (0) && keys %dep_files)
1335 # Set location of depcomp.
1336 &define_variable ('depcomp',
1337 "\$(SHELL) $am_config_aux_dir/depcomp",
1339 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1341 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1343 my @deplist = sort keys %dep_files;
1344 # Generate each `include' individually. Irix 6 make will
1345 # not properly include several files resulting from a
1346 # variable expansion; generating many separate includes
1348 $output_rules .= "\n";
1349 foreach my $iter (@deplist)
1351 $output_rules .= (subst ('AMDEP_TRUE')
1352 . subst ('am__include')
1354 . subst ('am__quote')
1356 . subst ('am__quote')
1360 # Compute the set of directories to remove in distclean-depend.
1361 my @depdirs = uniq (map { dirname ($_) } @deplist);
1362 $output_rules .= &file_contents ('depend',
1363 new Automake::Location,
1364 DEPDIRS => "@depdirs");
1369 &define_variable ('depcomp', '', INTERNAL);
1370 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1375 # Is the C linker needed?
1377 foreach my $ext (sort keys %extension_seen)
1379 next unless $extension_map{$ext};
1381 my $lang = $languages{$extension_map{$ext}};
1383 my $rule_file = $lang->rule_file || 'depend2';
1385 # Get information on $LANG.
1386 my $pfx = $lang->autodep;
1387 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1389 my ($AMDEP, $FASTDEP) =
1390 (option 'no-dependencies' || $lang->autodep eq 'no')
1391 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1393 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1394 my $verbose_nodep = ($AMDEP eq 'FALSE')
1395 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1396 my $silent = silent_flag ();
1398 my %transform = ('EXT' => $ext,
1402 'FASTDEP' => $FASTDEP,
1403 '-c' => $lang->compile_flag || '',
1404 # These are not used, but they need to be defined
1405 # so &transform do not complain.
1407 'DERIVED-EXT' => 'BUG',
1409 VERBOSE => $verbose,
1410 'VERBOSE-NODEP' => $verbose_nodep,
1414 # Generate the appropriate rules for this extension.
1415 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1416 || defined $lang->compile)
1418 # Some C compilers don't support -c -o. Use it only if really
1420 my $output_flag = $lang->output_flag || '';
1423 && $lang->name eq 'c'
1424 && option 'subdir-objects');
1426 # Compute a possible derived extension.
1427 # This is not used by depend2.am.
1428 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1430 # When we output an inference rule like `.c.o:' we
1431 # have two cases to consider: either subdir-objects
1432 # is used, or it is not.
1434 # In the latter case the rule is used to build objects
1435 # in the current directory, and dependencies always
1436 # go into `./$(DEPDIR)/'. We can hard-code this value.
1438 # In the former case the rule can be used to build
1439 # objects in sub-directories too. Dependencies should
1440 # go into the appropriate sub-directories, e.g.,
1441 # `sub/$(DEPDIR)/'. The value of this directory
1442 # needs to be computed on-the-fly.
1444 # DEPBASE holds the name of this directory, plus the
1445 # basename part of the object file (extensions Po, TPo,
1446 # Plo, TPlo will be added later as appropriate). It is
1447 # either hardcoded, or a shell variable (`$depbase') that
1448 # will be computed by the rule.
1450 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1452 file_contents ($rule_file,
1453 new Automake::Location,
1457 'DERIVED-EXT' => $der_ext,
1459 DEPBASE => $depbase,
1462 SOURCEFLAG => $sourceflags{$ext} || '',
1467 COMPILE => '$(' . $lang->compiler . ')',
1468 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1470 SUBDIROBJ => !! option 'subdir-objects');
1473 # Now include code for each specially handled object with this
1475 my %seen_files = ();
1476 foreach my $file (@{$lang_specific_files{$lang->name}})
1478 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1480 # We might see a given object twice, for instance if it is
1481 # used under different conditions.
1482 next if defined $seen_files{$obj};
1483 $seen_files{$obj} = 1;
1485 prog_error ("found " . $lang->name .
1486 " in handle_languages, but compiler not defined")
1487 unless defined $lang->compile;
1489 my $obj_compile = $lang->compile;
1491 # Rewrite each occurrence of `AM_$flag' in the compile
1492 # rule into `${derived}_$flag' if it exists.
1493 for my $flag (@{$lang->flags})
1495 my $val = "${derived}_$flag";
1496 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1500 my $libtool_tag = '';
1501 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1503 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1506 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1507 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1509 my $ltverbose = define_verbose_libtool ();
1511 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1512 . "--mode=compile $obj_compile";
1514 # We _need_ `-o' for per object rules.
1515 my $output_flag = $lang->output_flag || '-o';
1517 my $depbase = dirname ($obj);
1521 unless $depbase eq '';
1522 $depbase .= '$(DEPDIR)/' . basename ($obj);
1524 # Support for deansified files in subdirectories is ugly
1525 # enough to deserve an explanation.
1527 # A Note about normal ansi2knr processing first. On
1529 # AUTOMAKE_OPTIONS = ansi2knr
1530 # bin_PROGRAMS = foo
1531 # foo_SOURCES = foo.c
1533 # we generate rules similar to:
1535 # foo: foo$U.o; link ...
1536 # foo$U.o: foo$U.c; compile ...
1537 # foo_.c: foo.c; ansi2knr ...
1539 # this is fairly compact, and will call ansi2knr depending
1540 # on the value of $U (`' or `_').
1542 # It's harder with subdir sources. On
1544 # AUTOMAKE_OPTIONS = ansi2knr
1545 # bin_PROGRAMS = foo
1546 # foo_SOURCES = sub/foo.c
1548 # we have to create foo_.c in the current directory.
1549 # (Unless the user asks 'subdir-objects'.) This is important
1550 # in case the same file (`foo.c') is compiled from other
1551 # directories with different cpp options: foo_.c would
1552 # be preprocessed for only one set of options if it were
1553 # put in the subdirectory.
1555 # Because foo$U.o must be built from either foo_.c or
1556 # sub/foo.c we can't be as concise as in the first example.
1559 # foo: foo$U.o; link ...
1560 # foo_.o: foo_.c; compile ...
1561 # foo.o: sub/foo.c; compile ...
1562 # foo_.c: foo.c; ansi2knr ...
1564 # This is why we'll now transform $rule_file twice
1565 # if we detect this case.
1566 # A first time we output the compile rule with `$U'
1567 # replaced by `_' and the source directory removed,
1568 # and another time we simply remove `$U'.
1570 # Note that at this point $source (as computed by
1571 # &handle_single_transform) is `sub/foo$U.c'.
1572 # This can be confusing: it can be used as-is when
1573 # subdir-objects is set, otherwise you have to know
1574 # it really means `foo_.c' or `sub/foo.c'.
1575 my $objdir = dirname ($obj);
1576 my $srcdir = dirname ($source);
1577 if ($lang->ansi && $obj =~ /\$U/)
1579 prog_error "`$obj' contains \$U, but `$source' doesn't."
1580 if $source !~ /\$U/;
1582 (my $source_ = $source) =~ s/\$U/_/g;
1583 # Output an additional rule if _.c and .c are not in
1584 # the same directory. (_.c is always in $objdir.)
1585 if ($objdir ne $srcdir)
1587 (my $obj_ = $obj) =~ s/\$U/_/g;
1588 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1589 $source_ = basename ($source_);
1592 file_contents ($rule_file,
1593 new Automake::Location,
1597 DEPBASE => $depbase_,
1600 SOURCEFLAG => $sourceflags{$srcext} || '',
1601 OBJ => "$obj_$myext",
1602 OBJOBJ => "$obj_.obj",
1603 LTOBJ => "$obj_.lo",
1605 COMPILE => $obj_compile,
1606 LTCOMPILE => $obj_ltcompile,
1610 $depbase =~ s/\$U//g;
1611 $source =~ s/\$U//g;
1616 file_contents ($rule_file,
1617 new Automake::Location,
1621 DEPBASE => $depbase,
1624 SOURCEFLAG => $sourceflags{$srcext} || '',
1625 # Use $myext and not `.o' here, in case
1626 # we are actually building a new source
1627 # file -- e.g. via yacc.
1628 OBJ => "$obj$myext",
1629 OBJOBJ => "$obj.obj",
1632 VERBOSE => $verbose,
1633 'VERBOSE-NODEP' => $verbose_nodep,
1635 COMPILE => $obj_compile,
1636 LTCOMPILE => $obj_ltcompile,
1641 # The rest of the loop is done once per language.
1642 next if defined $done{$lang};
1645 # Load the language dependent Makefile chunks.
1646 my %lang = map { uc ($_) => 0 } keys %languages;
1647 $lang{uc ($lang->name)} = 1;
1648 $output_rules .= file_contents ('lang-compile',
1649 new Automake::Location,
1652 # If the source to a program consists entirely of code from a
1653 # `pure' language, for instance C++ or Fortran 77, then we
1654 # don't need the C compiler code. However if we run into
1655 # something unusual then we do generate the C code. There are
1656 # probably corner cases here that do not work properly.
1657 # People linking Java code to Fortran code deserve pain.
1658 $needs_c ||= ! $lang->pure;
1660 define_compiler_variable ($lang)
1661 if ($lang->compile);
1663 define_linker_variable ($lang)
1666 require_variables ("$am_file.am", $lang->Name . " source seen",
1667 TRUE, @{$lang->config_vars});
1669 # Call the finisher.
1672 # Flags listed in `->flags' are user variables (per GNU Standards),
1673 # they should not be overridden in the Makefile...
1674 my @dont_override = @{$lang->flags};
1675 # ... and so is LDFLAGS.
1676 push @dont_override, 'LDFLAGS' if $lang->link;
1678 check_user_variables @dont_override;
1681 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1682 # suffix rule was learned), don't bother with the C stuff. But if
1683 # anything else creeps in, then use it.
1685 if $need_link || suffix_rules_count > 1;
1689 &define_compiler_variable ($languages{'c'})
1690 unless defined $done{$languages{'c'}};
1691 define_linker_variable ($languages{'c'});
1694 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1695 define_verbose_tagvar ('GEN');
1699 # append_exeext { PREDICATE } $MACRO
1700 # ----------------------------------
1701 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1702 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1705 # This is typically used on all filenames of *_PROGRAMS, and filenames
1706 # of TESTS that are programs.
1707 sub append_exeext (&$)
1709 my ($pred, $macro) = @_;
1711 transform_variable_recursively
1712 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1714 my ($subvar, $val, $cond, $full_cond) = @_;
1715 # Append $(EXEEXT) unless the user did it already, or it's a
1718 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1724 # Check to make sure a source defined in LIBOBJS is not explicitly
1725 # mentioned. This is a separate function (as opposed to being inlined
1726 # in handle_source_transform) because it isn't always appropriate to
1728 sub check_libobjs_sources
1730 my ($one_file, $unxformed) = @_;
1732 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1733 'dist_EXTRA_', 'nodist_EXTRA_')
1736 my $varname = $prefix . $one_file . '_SOURCES';
1737 my $var = var ($varname);
1740 @files = $var->value_as_list_recursive;
1742 elsif ($prefix eq '')
1744 @files = ($unxformed . '.c');
1751 foreach my $file (@files)
1753 err_var ($prefix . $one_file . '_SOURCES',
1754 "automatically discovered file `$file' should not" .
1755 " be explicitly mentioned")
1756 if defined $libsources{$file};
1763 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1764 # -----------------------------------------------------------------------------
1765 # Does much of the actual work for handle_source_transform.
1767 # $VAR is the name of the variable that the source filenames come from
1768 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1769 # $DERIVED is the name of resulting executable or library
1770 # $OBJ is the object extension (e.g., `$U.lo')
1771 # $FILE the source file to transform
1772 # %TRANSFORM contains extras arguments to pass to file_contents
1773 # when producing explicit rules
1774 # Result is a list of the names of objects
1775 # %linkers_used will be updated with any linkers needed
1776 sub handle_single_transform ($$$$$%)
1778 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1779 my @files = ($_file);
1781 my $nonansi_obj = $obj;
1782 $nonansi_obj =~ s/\$U//g;
1784 # Turn sources into objects. We use a while loop like this
1785 # because we might add to @files in the loop.
1786 while (scalar @files > 0)
1790 # Configure substitutions in _SOURCES variables are errors.
1793 my $parent_msg = '';
1794 $parent_msg = "\nand is referred to from `$topparent'"
1795 if $topparent ne $var->name;
1797 "`" . $var->name . "' includes configure substitution `$_'"
1798 . $parent_msg . ";\nconfigure " .
1799 "substitutions are not allowed in _SOURCES variables");
1803 # If the source file is in a subdirectory then the `.o' is put
1804 # into the current directory, unless the subdir-objects option
1807 # Split file name into base and extension.
1808 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1810 my $directory = $1 || '';
1814 # We must generate a rule for the object if it requires its own flags.
1816 my ($linker, $object);
1818 # This records whether we've seen a derived source file (e.g.
1820 my $derived_source = 0;
1822 # This holds the `aggregate context' of the file we are
1823 # currently examining. If the file is compiled with
1824 # per-object flags, then it will be the name of the object.
1825 # Otherwise it will be `AM'. This is used by the target hook
1826 # language function.
1827 my $aggregate = 'AM';
1829 $extension = &derive_suffix ($extension, $nonansi_obj);
1831 if ($extension_map{$extension} &&
1832 ($lang = $languages{$extension_map{$extension}}))
1834 # Found the language, so see what it says.
1835 &saw_extension ($extension);
1837 # Do we have per-executable flags for this executable?
1838 my $have_per_exec_flags = 0;
1839 my @peflags = @{$lang->flags};
1840 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1841 foreach my $flag (@peflags)
1843 if (set_seen ("${derived}_$flag"))
1845 $have_per_exec_flags = 1;
1850 # Note: computed subr call. The language rewrite function
1851 # should return one of the LANG_* constants. It could
1852 # also return a list whose first value is such a constant
1853 # and whose second value is a new source extension which
1854 # should be applied. This means this particular language
1855 # generates another source file which we must then process
1857 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1858 my ($r, $source_extension)
1859 = &$subr ($directory, $base, $extension,
1860 $nonansi_obj, $have_per_exec_flags, $var);
1861 # Skip this entry if we were asked not to process it.
1862 next if $r == LANG_IGNORE;
1864 # Now extract linker and other info.
1865 $linker = $lang->linker;
1868 if (defined $source_extension)
1870 $this_obj_ext = $source_extension;
1871 $derived_source = 1;
1875 $this_obj_ext = $obj;
1879 $this_obj_ext = $nonansi_obj;
1881 $object = $base . $this_obj_ext;
1883 if ($have_per_exec_flags)
1885 # We have a per-executable flag in effect for this
1886 # object. In this case we rewrite the object's
1887 # name to ensure it is unique.
1889 # We choose the name `DERIVED_OBJECT' to ensure
1890 # (1) uniqueness, and (2) continuity between
1891 # invocations. However, this will result in a
1892 # name that is too long for losing systems, in
1893 # some situations. So we provide _SHORTNAME to
1896 my $dname = $derived;
1897 my $var = var ($derived . '_SHORTNAME');
1900 # FIXME: should use the same Condition as
1901 # the _SOURCES variable. But this is really
1902 # silly overkill -- nobody should have
1903 # conditional shortnames.
1904 $dname = $var->variable_value;
1906 $object = $dname . '-' . $object;
1908 prog_error ($lang->name . " flags defined without compiler")
1909 if ! defined $lang->compile;
1914 # If rewrite said it was ok, put the object into a
1916 if ($r == LANG_SUBDIR && $directory ne '')
1918 $object = $directory . '/' . $object;
1921 # If the object file has been renamed (because per-target
1922 # flags are used) we cannot compile the file with an
1923 # inference rule: we need an explicit rule.
1925 # If the source is in a subdirectory and the object is in
1926 # the current directory, we also need an explicit rule.
1928 # If both source and object files are in a subdirectory
1929 # (this happens when the subdir-objects option is used),
1930 # then the inference will work.
1932 # The latter case deserves a historical note. When the
1933 # subdir-objects option was added on 1999-04-11 it was
1934 # thought that inferences rules would work for
1935 # subdirectory objects too. Later, on 1999-11-22,
1936 # automake was changed to output explicit rules even for
1937 # subdir-objects. Nobody remembers why, but this occurred
1938 # soon after the merge of the user-dep-gen-branch so it
1939 # might be related. In late 2003 people complained about
1940 # the size of the generated Makefile.ins (libgcj, with
1941 # 2200+ subdir objects was reported to have a 9MB
1942 # Makefile), so we now rely on inference rules again.
1943 # Maybe we'll run across the same issue as in the past,
1944 # but at least this time we can document it. However since
1945 # dependency tracking has evolved it is possible that
1946 # our old problem no longer exists.
1947 # Using inference rules for subdir-objects has been tested
1948 # with GNU make, Solaris make, Ultrix make, BSD make,
1949 # HP-UX make, and OSF1 make successfully.
1951 || ($directory ne '' && ! option 'subdir-objects')
1952 # We must also use specific rules for a nodist_ source
1953 # if its language requests it.
1954 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1956 my $obj_sans_ext = substr ($object, 0,
1957 - length ($this_obj_ext));
1959 if ($directory ne '')
1961 $full_ansi = $directory . '/' . $base . $extension;
1965 $full_ansi = $base . $extension;
1968 if ($lang->ansi && option 'ansi2knr')
1970 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1971 $obj_sans_ext .= '$U';
1974 my @specifics = ($full_ansi, $obj_sans_ext,
1975 # Only use $this_obj_ext in the derived
1976 # source case because in the other case we
1977 # *don't* want $(OBJEXT) to appear here.
1978 ($derived_source ? $this_obj_ext : '.o'),
1981 # If we renamed the object then we want to use the
1982 # per-executable flag name. But if this is simply a
1983 # subdir build then we still want to use the AM_ flag
1987 unshift @specifics, $derived;
1988 $aggregate = $derived;
1992 unshift @specifics, 'AM';
1995 # Each item on this list is a reference to a list consisting
1996 # of four values followed by additional transform flags for
1997 # file_contents. The four values are the derived flag prefix
1998 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1999 # source file, the base name of the output file, and
2000 # the extension for the object file.
2001 push (@{$lang_specific_files{$lang->name}},
2002 [@specifics, %transform]);
2005 elsif ($extension eq $nonansi_obj)
2007 # This is probably the result of a direct suffix rule.
2008 # In this case we just accept the rewrite.
2009 $object = "$base$extension";
2010 $object = "$directory/$object" if $directory ne '';
2015 # No error message here. Used to have one, but it was
2017 # FIXME: we could potentially do more processing here,
2018 # perhaps treating the new extension as though it were a
2019 # new source extension (as above). This would require
2020 # more restructuring than is appropriate right now.
2024 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2025 if (defined $object_map{$object}
2026 && $object_map{$object} ne $full);
2028 my $comp_val = (($object =~ /\.lo$/)
2029 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2030 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2031 if (defined $object_compilation_map{$comp_obj}
2032 && $object_compilation_map{$comp_obj} != 0
2033 # Only see the error once.
2034 && ($object_compilation_map{$comp_obj}
2035 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2036 && $object_compilation_map{$comp_obj} != $comp_val)
2038 err_am "object `$comp_obj' created both with libtool and without";
2040 $object_compilation_map{$comp_obj} |= $comp_val;
2044 # Let the language do some special magic if required.
2045 $lang->target_hook ($aggregate, $object, $full, %transform);
2048 if ($derived_source)
2050 prog_error ($lang->name . " has automatic dependency tracking")
2051 if $lang->autodep ne 'no';
2052 # Make sure this new source file is handled next. That will
2053 # make it appear to be at the right place in the list.
2054 unshift (@files, $object);
2055 # Distribute derived sources unless the source they are
2056 # derived from is not.
2057 &push_dist_common ($object)
2058 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2062 $linkers_used{$linker} = 1;
2064 push (@result, $object);
2066 if (! defined $object_map{$object})
2069 $object_map{$object} = $full;
2071 # If resulting object is in subdir, we need to make
2072 # sure the subdir exists at build time.
2073 if ($object =~ /\//)
2075 # FIXME: check that $DIRECTORY is somewhere in the
2078 # For Java, the way we're handling it right now, a
2079 # `..' component doesn't make sense.
2080 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2082 err_am "`$full' should not contain a `..' component";
2085 # Make sure object is removed by `make mostlyclean'.
2086 $compile_clean_files{$object} = MOSTLY_CLEAN;
2087 # If we have a libtool object then we also must remove
2089 if ($object =~ /\.lo$/)
2091 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2092 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2094 # Remove any libtool object in this directory.
2095 $libtool_clean_directories{$directory} = 1;
2098 push (@dep_list, require_build_directory ($directory));
2100 # If we're generating dependencies, we also want
2101 # to make sure that the appropriate subdir of the
2102 # .deps directory is created.
2104 require_build_directory ($directory . '/$(DEPDIR)'))
2105 unless option 'no-dependencies';
2108 &pretty_print_rule ($object . ':', "\t", @dep_list)
2109 if scalar @dep_list > 0;
2112 # Transform .o or $o file into .P file (for automatic
2114 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2115 # might fail over them in an include statement.
2116 # Leading double slashes may be special, as per Posix, so deal
2117 # with them carefully.
2118 if ($lang && $lang->autodep ne 'no')
2120 my $depfile = $object;
2121 $depfile =~ s/\.([^.]*)$/.P$1/;
2122 $depfile =~ s/\$\(OBJEXT\)$/o/;
2123 my $maybe_extra_leading_slash = '';
2124 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2125 $depfile =~ s,/+,/,g;
2126 my $basename = basename ($depfile);
2127 # This might make $dirname empty, but we account for that below.
2128 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2129 $dirname = $maybe_extra_leading_slash . $dirname;
2130 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2139 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2140 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2141 # ---------------------------------------------------------------------------
2142 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2145 # $VAR is the name of the _SOURCES variable
2146 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2147 # it will be generated and returned).
2148 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2149 # work done to determine the linker will be).
2150 # $ONE_FILE is the canonical (transformed) name of object to build
2151 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2152 # $TOPPARENT is the _SOURCES variable being processed.
2153 # $WHERE context into which this definition is done
2154 # %TRANSFORM extra arguments to pass to file_contents when producing
2157 # Result is a pair ($LINKER, $OBJVAR):
2158 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2159 sub define_objects_from_sources ($$$$$$$%)
2161 my ($var, $objvar, $nodefine, $one_file,
2162 $obj, $topparent, $where, %transform) = @_;
2164 my $needlinker = "";
2166 transform_variable_recursively
2167 ($var, $objvar, 'am__objects', $nodefine, $where,
2168 # The transform code to run on each filename.
2170 my ($subvar, $val, $cond, $full_cond) = @_;
2171 my @trans = handle_single_transform ($subvar, $topparent,
2172 $one_file, $obj, $val,
2174 $needlinker = "true" if @trans;
2182 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2183 # -----------------------------------------------------------------------------
2184 # Handle SOURCE->OBJECT transform for one program or library.
2186 # canonical (transformed) name of target to build
2187 # actual target of object to build
2188 # object extension (i.e., either `.o' or `$o')
2189 # location of the source variable
2190 # extra arguments to pass to file_contents when producing rules
2191 # Return the name of the linker variable that must be used.
2192 # Empty return means just use `LINK'.
2193 sub handle_source_transform ($$$$%)
2195 # one_file is canonical name. unxformed is given name. obj is
2197 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2201 # No point in continuing if _OBJECTS is defined.
2202 return if reject_var ($one_file . '_OBJECTS',
2203 $one_file . '_OBJECTS should not be defined');
2208 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2209 'dist_EXTRA_', 'nodist_EXTRA_')
2211 my $varname = $prefix . $one_file . "_SOURCES";
2212 my $var = var $varname;
2215 # We are going to define _OBJECTS variables using the prefix.
2216 # Then we glom them all together. So we can't use the null
2217 # prefix here as we need it later.
2218 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2220 # Keep track of which prefixes we saw.
2221 $used_pfx{$xpfx} = 1
2222 unless $prefix =~ /EXTRA_/;
2224 push @sources, "\$($varname)";
2225 push @dist_sources, shadow_unconditionally ($varname, $where)
2226 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2229 define_objects_from_sources ($varname,
2230 $xpfx . $one_file . '_OBJECTS',
2231 $prefix =~ /EXTRA_/,
2232 $one_file, $obj, $varname, $where,
2233 DIST_SOURCE => ($prefix !~ /^nodist_/),
2238 $linker ||= &resolve_linker (%linkers_used);
2241 my @keys = sort keys %used_pfx;
2242 if (scalar @keys == 0)
2244 # The default source for libfoo.la is libfoo.c, but for
2245 # backward compatibility we first look at libfoo_la.c,
2246 # if no default source suffix is given.
2247 my $old_default_source = "$one_file.c";
2248 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2249 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2250 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2251 if $default_source_ext =~ /[\t ]/;
2252 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2253 if ($old_default_source ne $default_source
2255 && (rule $old_default_source
2256 || rule '$(srcdir)/' . $old_default_source
2257 || rule '${srcdir}/' . $old_default_source
2258 || -f $old_default_source))
2260 my $loc = $where->clone;
2262 msg ('obsolete', $loc,
2263 "the default source for `$unxformed' has been changed "
2264 . "to `$default_source'.\n(Using `$old_default_source' for "
2265 . "backward compatibility.)");
2266 $default_source = $old_default_source;
2268 # If a rule exists to build this source with a $(srcdir)
2269 # prefix, use that prefix in our variables too. This is for
2270 # the sake of BSD Make.
2271 if (rule '$(srcdir)/' . $default_source
2272 || rule '${srcdir}/' . $default_source)
2274 $default_source = '$(srcdir)/' . $default_source;
2277 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2278 push (@sources, $default_source);
2279 push (@dist_sources, $default_source);
2283 handle_single_transform ($one_file . '_SOURCES',
2284 $one_file . '_SOURCES',
2286 $default_source, %transform);
2287 $linker ||= &resolve_linker (%linkers_used);
2288 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2292 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2293 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2296 # If we want to use `LINK' we must make sure it is defined.
2306 # handle_lib_objects ($XNAME, $VAR)
2307 # ---------------------------------
2308 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2309 # Also, generate _DEPENDENCIES variable if appropriate.
2311 # transformed name of object being built, or empty string if no object
2312 # name of _LDADD/_LIBADD-type variable to examine
2313 # Returns 1 if LIBOBJS seen, 0 otherwise.
2314 sub handle_lib_objects
2316 my ($xname, $varname) = @_;
2318 my $var = var ($varname);
2319 prog_error "handle_lib_objects: `$varname' undefined"
2321 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2322 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2323 my $prefix = $1 || 'AM_';
2325 my $seen_libobjs = 0;
2328 transform_variable_recursively
2329 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2331 # Transformation function, run on each filename.
2333 my ($subvar, $val, $cond, $full_cond) = @_;
2337 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2338 if ($val !~ /^-[lL]/ &&
2339 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2340 # for Libtool libraries or programs. (Actually we are a bit
2341 # lax here since this code also applies to non-libtool
2342 # libraries or programs, for which -dlopen and -dlopreopen
2343 # are pure nonsense. Diagnosing this doesn't seem very
2344 # important: the developer will quickly get complaints from
2346 $val !~ /^-dl(?:pre)?open$/ &&
2347 # Only get this error once.
2351 # FIXME: should display a stack of nested variables
2352 # as context when $var != $subvar.
2353 err_var ($var, "linker flags such as `$val' belong in "
2354 . "`${prefix}LDFLAGS");
2358 elsif ($val !~ /^\@.*\@$/)
2360 # Assume we have a file of some sort, and output it into the
2361 # dependency variable. Autoconf substitutions are not output;
2362 # rarely is a new dependency substituted into e.g. foo_LDADD
2363 # -- but bad things (e.g. -lX11) are routinely substituted.
2364 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2365 # and handled specially below.
2368 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2370 handle_LIBOBJS ($subvar, $cond, $1);
2374 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2376 handle_ALLOCA ($subvar, $cond, $1);
2385 return $seen_libobjs;
2388 # handle_LIBOBJS_or_ALLOCA ($VAR)
2389 # -------------------------------
2390 # Definitions common to LIBOBJS and ALLOCA.
2391 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2392 sub handle_LIBOBJS_or_ALLOCA ($)
2398 # If LIBOBJS files must be built in another directory we have
2399 # to define LIBOBJDIR and ensure the files get cleaned.
2400 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2401 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2402 if ($config_libobj_dir
2403 && $relative_dir ne $config_libobj_dir)
2405 if (option 'subdir-objects')
2407 # In the top-level Makefile we do not use $(top_builddir), because
2408 # we are already there, and since the targets are built without
2409 # a $(top_builddir), it helps BSD Make to match them with
2411 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2412 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2413 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2414 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2415 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2416 # be created by libtool as a side-effect of creating LTLIBOBJS).
2417 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2421 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2422 . " `subdir-objects' is not set");
2429 sub handle_LIBOBJS ($$$)
2431 my ($var, $cond, $lt) = @_;
2432 my $myobjext = $lt ? 'lo' : 'o';
2435 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2436 if ! keys %libsources;
2438 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2440 foreach my $iter (keys %libsources)
2442 if ($iter =~ /\.[cly]$/)
2444 &saw_extension ($&);
2445 &saw_extension ('.c');
2448 if ($iter =~ /\.h$/)
2450 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2452 elsif ($iter ne 'alloca.c')
2454 my $rewrite = $iter;
2455 $rewrite =~ s/\.c$/.P$myobjext/;
2456 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2457 $rewrite = "^" . quotemeta ($iter) . "\$";
2458 # Only require the file if it is not a built source.
2459 my $bs = var ('BUILT_SOURCES');
2460 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2462 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2468 sub handle_ALLOCA ($$$)
2470 my ($var, $cond, $lt) = @_;
2471 my $myobjext = $lt ? 'lo' : 'o';
2473 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2475 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2476 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2477 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2478 &saw_extension ('.c');
2481 # Canonicalize the input parameter
2485 $string =~ tr/A-Za-z0-9_\@/_/c;
2489 # Canonicalize a name, and check to make sure the non-canonical name
2490 # is never used. Returns canonical name. Arguments are name and a
2491 # list of suffixes to check for.
2492 sub check_canonical_spelling
2494 my ($name, @suffixes) = @_;
2496 my $xname = &canonicalize ($name);
2497 if ($xname ne $name)
2499 foreach my $xt (@suffixes)
2501 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2511 # Set up the compile suite.
2512 sub handle_compile ()
2515 unless $get_object_extension_was_run;
2518 my $default_includes = '';
2519 if (! option 'nostdinc')
2521 my @incs = ('-I.', subst ('am__isrc'));
2523 my $var = var 'CONFIG_HEADER';
2526 foreach my $hdr (split (' ', $var->variable_value))
2528 push @incs, '-I' . dirname ($hdr);
2531 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2532 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2533 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2534 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2535 # to just put @am__isrc@ right after `-I.', without a space.
2536 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2539 my (@mostly_rms, @dist_rms);
2540 foreach my $item (sort keys %compile_clean_files)
2542 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2544 push (@mostly_rms, "\t-rm -f $item");
2546 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2548 push (@dist_rms, "\t-rm -f $item");
2552 prog_error 'invalid entry in %compile_clean_files';
2556 my ($coms, $vars, $rules) =
2557 &file_contents_internal (1, "$libdir/am/compile.am",
2558 new Automake::Location,
2559 ('DEFAULT_INCLUDES' => $default_includes,
2560 'MOSTLYRMS' => join ("\n", @mostly_rms),
2561 'DISTRMS' => join ("\n", @dist_rms)));
2562 $output_vars .= $vars;
2563 $output_rules .= "$coms$rules";
2565 # Check for automatic de-ANSI-fication.
2566 if (option 'ansi2knr')
2568 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2569 my $ansi2knr_dir = '';
2571 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2572 TRUE, "ANSI2KNR", "U");
2574 # topdir is where ansi2knr should be.
2575 if ($ansi2knr_filename eq 'ansi2knr')
2577 # Only require ansi2knr files if they should appear in
2579 require_file ($ansi2knr_where, FOREIGN,
2580 'ansi2knr.c', 'ansi2knr.1');
2582 # ansi2knr needs to be built before subdirs, so unshift it
2583 # rather then pushing it.
2584 unshift (@all, '$(ANSI2KNR)');
2588 $ansi2knr_dir = dirname ($ansi2knr_filename);
2591 $output_rules .= &file_contents ('ansi2knr',
2592 new Automake::Location,
2593 'ANSI2KNR-DIR' => $ansi2knr_dir);
2600 # Handle libtool rules.
2603 return unless var ('LIBTOOL');
2605 # Libtool requires some files, but only at top level.
2606 # (Starting with Libtool 2.0 we do not have to bother. These
2607 # requirements are done with AC_REQUIRE_AUX_FILE.)
2608 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2609 if $relative_dir eq '.' && ! $libtool_new_api;
2612 foreach my $item (sort keys %libtool_clean_directories)
2614 my $dir = ($item eq '.') ? '' : "$item/";
2615 # .libs is for Unix, _libs for DOS.
2616 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2619 check_user_variables 'LIBTOOLFLAGS';
2621 # Output the libtool compilation rules.
2622 $output_rules .= &file_contents ('libtool',
2623 new Automake::Location,
2624 LTRMS => join ("\n", @libtool_rms));
2627 # handle_programs ()
2628 # ------------------
2629 # Handle C programs.
2632 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2633 'bin', 'sbin', 'libexec', 'pkglibexec',
2635 return if ! @proglist;
2637 my $seen_global_libobjs =
2638 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2640 foreach my $pair (@proglist)
2642 my ($where, $one_file) = @$pair;
2644 my $seen_libobjs = 0;
2645 my $obj = get_object_extension '.$(OBJEXT)';
2647 $known_programs{$one_file} = $where;
2649 # Canonicalize names and check for misspellings.
2650 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2651 '_SOURCES', '_OBJECTS',
2654 $where->push_context ("while processing program `$one_file'");
2655 $where->set (INTERNAL->get);
2657 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2658 NONLIBTOOL => 1, LIBTOOL => 0);
2660 if (var ($xname . "_LDADD"))
2662 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2666 # User didn't define prog_LDADD override. So do it.
2667 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2669 # This does a bit too much work. But we need it to
2670 # generate _DEPENDENCIES when appropriate.
2673 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2677 reject_var ($xname . '_LIBADD',
2678 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2680 set_seen ($xname . '_DEPENDENCIES');
2681 set_seen ($xname . '_LDFLAGS');
2683 # Determine program to use for link.
2684 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2685 $vlink = verbose_flag ($vlink || 'GEN');
2687 # If the resulting program lies into a subdirectory,
2688 # make sure this directory will exist.
2689 my $dirstamp = require_build_directory_maybe ($one_file);
2691 $libtool_clean_directories{dirname ($one_file)} = 1;
2693 $output_rules .= &file_contents ('program',
2695 PROGRAM => $one_file,
2699 DIRSTAMP => $dirstamp,
2700 EXEEXT => '$(EXEEXT)');
2702 if ($seen_libobjs || $seen_global_libobjs)
2704 if (var ($xname . '_LDADD'))
2706 &check_libobjs_sources ($xname, $xname . '_LDADD');
2708 elsif (var ('LDADD'))
2710 &check_libobjs_sources ($xname, 'LDADD');
2717 # handle_libraries ()
2718 # -------------------
2720 sub handle_libraries
2722 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2723 'lib', 'pkglib', 'noinst', 'check');
2724 return if ! @liblist;
2726 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2731 my $var = rvar ($prefix[0] . '_LIBRARIES');
2732 $var->requires_variables ('library used', 'RANLIB');
2735 &define_variable ('AR', 'ar', INTERNAL);
2736 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2737 &define_verbose_tagvar ('AR');
2739 foreach my $pair (@liblist)
2741 my ($where, $onelib) = @$pair;
2743 my $seen_libobjs = 0;
2744 # Check that the library fits the standard naming convention.
2745 my $bn = basename ($onelib);
2746 if ($bn !~ /^lib.*\.a$/)
2748 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2749 my $suggestion = dirname ($onelib) . "/$bn";
2750 $suggestion =~ s|^\./||g;
2751 msg ('error-gnu/warn', $where,
2752 "`$onelib' is not a standard library name\n"
2753 . "did you mean `$suggestion'?")
2756 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2758 $where->push_context ("while processing library `$onelib'");
2759 $where->set (INTERNAL->get);
2761 my $obj = get_object_extension '.$(OBJEXT)';
2763 # Canonicalize names and check for misspellings.
2764 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2765 '_OBJECTS', '_DEPENDENCIES',
2768 if (! var ($xlib . '_AR'))
2770 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2773 # Generate support for conditional object inclusion in
2775 if (var ($xlib . '_LIBADD'))
2777 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2784 &define_variable ($xlib . "_LIBADD", '', $where);
2787 reject_var ($xlib . '_LDADD',
2788 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2790 # Make sure we at look at this.
2791 set_seen ($xlib . '_DEPENDENCIES');
2793 &handle_source_transform ($xlib, $onelib, $obj, $where,
2794 NONLIBTOOL => 1, LIBTOOL => 0);
2796 # If the resulting library lies into a subdirectory,
2797 # make sure this directory will exist.
2798 my $dirstamp = require_build_directory_maybe ($onelib);
2799 my $verbose = verbose_flag ('AR');
2800 my $silent = silent_flag ();
2802 $output_rules .= &file_contents ('library',
2804 VERBOSE => $verbose,
2808 DIRSTAMP => $dirstamp);
2812 if (var ($xlib . '_LIBADD'))
2814 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2820 msg ('extra-portability', $where,
2821 "`$onelib': linking libraries using a non-POSIX\n"
2822 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
2828 # handle_ltlibraries ()
2829 # ---------------------
2830 # Handle shared libraries.
2831 sub handle_ltlibraries
2833 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2834 'noinst', 'lib', 'pkglib', 'check');
2835 return if ! @liblist;
2837 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2842 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2843 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2847 my %instsubdirs = ();
2849 my %liblocations = (); # Location (in Makefile.am) of each library.
2851 foreach my $key (@prefix)
2853 # Get the installation directory of each library.
2855 my $strip_subdir = 1;
2856 if ($dir =~ /^nobase_/)
2858 $dir =~ s/^nobase_//;
2861 my $var = rvar ($key . '_LTLIBRARIES');
2863 # We reject libraries which are installed in several places
2864 # in the same condition, because we can only specify one
2866 $var->traverse_recursively
2869 my ($var, $val, $cond, $full_cond) = @_;
2870 my $hcond = $full_cond->human;
2871 my $where = $var->rdef ($cond)->location;
2873 $ldir = '/' . dirname ($val)
2874 if (!$strip_subdir);
2875 # A library cannot be installed in different directories
2876 # in overlapping conditions.
2877 if (exists $instconds{$val})
2880 $instconds{$val}->ambiguous_p ($val, $full_cond);
2884 error ($where, $msg, partial => 1);
2885 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2886 $dirtxt = "built for `$dir'"
2887 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2889 $full_cond->true ? "" : " in condition $hcond";
2891 error ($where, "`$val' should be $dirtxt$dircond ...",
2894 my $hacond = $acond->human;
2895 my $adir = $instdirs{$val}{$acond};
2896 my $adirtxt = "installed in `$adir'";
2897 $adirtxt = "built for `$adir'"
2898 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2899 || $adir eq 'check');
2900 my $adircond = $acond->true ? "" : " in condition $hacond";
2902 my $onlyone = ($dir ne $adir) ?
2903 ("\nLibtool libraries can be built for only one "
2904 . "destination.") : "";
2906 error ($liblocations{$val}{$acond},
2907 "... and should also be $adirtxt$adircond.$onlyone");
2913 $instconds{$val} = new Automake::DisjConditions;
2915 $instdirs{$val}{$full_cond} = $dir;
2916 $instsubdirs{$val}{$full_cond} = $ldir;
2917 $liblocations{$val}{$full_cond} = $where;
2918 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2924 skip_ac_subst => 1);
2927 foreach my $pair (@liblist)
2929 my ($where, $onelib) = @$pair;
2931 my $seen_libobjs = 0;
2932 my $obj = get_object_extension '.lo';
2934 # Canonicalize names and check for misspellings.
2935 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2936 '_SOURCES', '_OBJECTS',
2939 # Check that the library fits the standard naming convention.
2940 my $libname_rx = '^lib.*\.la';
2941 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2942 my $ldvar2 = var ('LDFLAGS');
2943 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2944 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2946 # Relax name checking for libtool modules.
2947 $libname_rx = '\.la';
2950 my $bn = basename ($onelib);
2951 if ($bn !~ /$libname_rx$/)
2953 my $type = 'library';
2954 if ($libname_rx eq '\.la')
2956 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2961 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2963 my $suggestion = dirname ($onelib) . "/$bn";
2964 $suggestion =~ s|^\./||g;
2965 msg ('error-gnu/warn', $where,
2966 "`$onelib' is not a standard libtool $type name\n"
2967 . "did you mean `$suggestion'?")
2970 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2972 $where->push_context ("while processing Libtool library `$onelib'");
2973 $where->set (INTERNAL->get);
2975 # Make sure we look at these.
2976 set_seen ($xlib . '_LDFLAGS');
2977 set_seen ($xlib . '_DEPENDENCIES');
2979 # Generate support for conditional object inclusion in
2981 if (var ($xlib . '_LIBADD'))
2983 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2990 &define_variable ($xlib . "_LIBADD", '', $where);
2993 reject_var ("${xlib}_LDADD",
2994 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2997 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2998 NONLIBTOOL => 0, LIBTOOL => 1);
3000 # Determine program to use for link.
3001 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
3002 $vlink = verbose_flag ($vlink || 'GEN');
3004 my $rpathvar = "am_${xlib}_rpath";
3005 my $rpath = "\$($rpathvar)";
3006 foreach my $rcond ($instconds{$onelib}->conds)
3009 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
3010 || $instdirs{$onelib}{$rcond} eq 'noinst'
3011 || $instdirs{$onelib}{$rcond} eq 'check')
3013 # It's an EXTRA_ library, so we can't specify -rpath,
3014 # because we don't know where the library will end up.
3015 # The user probably knows, but generally speaking automake
3016 # doesn't -- and in fact configure could decide
3017 # dynamically between two different locations.
3022 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
3023 $val .= $instsubdirs{$onelib}{$rcond}
3024 if defined $instsubdirs{$onelib}{$rcond};
3028 # If $rcond is true there is only one condition and
3029 # there is no point defining an helper variable.
3034 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3038 # If the resulting library lies into a subdirectory,
3039 # make sure this directory will exist.
3040 my $dirstamp = require_build_directory_maybe ($onelib);
3042 # Remember to cleanup .libs/ in this directory.
3043 my $dirname = dirname $onelib;
3044 $libtool_clean_directories{$dirname} = 1;
3046 $output_rules .= &file_contents ('ltlibrary',
3048 LTLIBRARY => $onelib,
3049 XLTLIBRARY => $xlib,
3053 DIRSTAMP => $dirstamp);
3056 if (var ($xlib . '_LIBADD'))
3058 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3064 msg ('extra-portability', $where,
3065 "`$onelib': linking libtool libraries using a non-POSIX\n"
3066 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
3071 # See if any _SOURCES variable were misspelled.
3074 # It is ok if the user sets this particular variable.
3075 set_seen 'AM_LDFLAGS';
3077 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3079 foreach my $var (variables $primary)
3081 my $varname = $var->name;
3082 # A configure variable is always legitimate.
3083 next if exists $configure_vars{$varname};
3085 for my $cond ($var->conditions->conds)
3087 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3088 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3089 . " program or\nlibrary has `$1' as canonical name"
3090 . " (possible typo)")
3091 unless $var->rdef ($cond)->seen;
3101 # NOTE we no longer automatically clean SCRIPTS, because it is
3102 # useful to sometimes distribute scripts verbatim. This happens
3103 # e.g. in Automake itself.
3104 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3105 'bin', 'sbin', 'libexec', 'pkgdata',
3112 ## ------------------------ ##
3113 ## Handling Texinfo files. ##
3114 ## ------------------------ ##
3116 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3117 # &scan_texinfo_file ($FILENAME)
3118 # ------------------------------
3119 # $OUTFILE - name of the info file produced by $FILENAME.
3120 # $VFILE - name of the version.texi file used (undef if none).
3121 # @CLEAN_FILES - list of byproducts (indexes etc.)
3122 sub scan_texinfo_file ($)
3124 my ($filename) = @_;
3126 # Some of the following extensions are always created, no matter
3127 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3128 # are only created when they are used. We used to scan $FILENAME
3129 # for their use, but that is not enough: they could be used in
3130 # included files. We can't scan included files because we don't
3131 # know the include path. Therefore we always erase these files, no
3132 # matter whether they are used or not.
3134 # (tmp is only created if an @macro is used and a certain e-TeX
3135 # feature is not available.)
3136 my %clean_suffixes =
3137 map { $_ => 1 } (qw(aux log toc tmp
3143 pg pgs)); # grep 'new.*index' texinfo.tex
3145 my $texi = new Automake::XFile "< $filename";
3146 verb "reading $filename";
3148 my ($outfile, $vfile);
3149 while ($_ = $texi->getline)
3151 if (/^\@setfilename +(\S+)/)
3153 # Honor only the first @setfilename. (It's possible to have
3154 # more occurrences later if the manual shows examples of how
3155 # to use @setfilename...)
3159 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3161 error ("$filename:$.",
3162 "output `$outfile' has unrecognized extension");
3166 # A "version.texi" file is actually any file whose name matches
3168 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3173 # Try to find new or unused indexes.
3175 # Creating a new category of index.
3176 elsif (/^\@def(code)?index (\w+)/)
3178 $clean_suffixes{$2} = 1;
3179 $clean_suffixes{"$2s"} = 1;
3182 # Merging an index into an another.
3183 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3185 delete $clean_suffixes{"$2s"};
3186 $clean_suffixes{"$3s"} = 1;
3193 err_am "`$filename' missing \@setfilename";
3197 my $infobase = basename ($filename);
3198 $infobase =~ s/\.te?xi(nfo)?$//;
3199 return ($outfile, $vfile,
3200 map { "$infobase.$_" } (sort keys %clean_suffixes));
3204 # ($DIRSTAMP, @CLEAN_FILES)
3205 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3206 # ------------------------------------------------------------------
3207 # SOURCE - the source Texinfo file
3208 # DEST - the destination Info file
3209 # INSRC - whether DEST should be built in the source tree
3210 # DEPENDENCIES - known dependencies
3211 sub output_texinfo_build_rules ($$$@)
3213 my ($source, $dest, $insrc, @deps) = @_;
3215 # Split `a.texi' into `a' and `.texi'.
3216 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3217 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3222 # We can output two kinds of rules: the "generic" rules use Make
3223 # suffix rules and are appropriate when $source and $dest do not lie
3224 # in a sub-directory; the "specific" rules are needed in the other
3227 # The former are output only once (this is not really apparent here,
3228 # but just remember that some logic deeper in Automake will not
3229 # output the same rule twice); while the later need to be output for
3230 # each Texinfo source.
3233 my $sdir = dirname $source;
3234 if ($sdir eq '.' && dirname ($dest) eq '.')
3237 $makeinfoflags = '-I $(srcdir)';
3242 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3245 # A directory can contain two kinds of info files: some built in the
3246 # source tree, and some built in the build tree. The rules are
3247 # different in each case. However we cannot output two different
3248 # set of generic rules. Because in-source builds are more usual, we
3249 # use generic rules in this case and fall back to "specific" rules
3250 # for build-dir builds. (It should not be a problem to invert this
3252 $generic = 0 unless $insrc;
3254 # We cannot use a suffix rule to build info files with an empty
3255 # extension. Otherwise we would output a single suffix inference
3256 # rule, with separate dependencies, as in
3260 # foo.info: foo.texi
3262 # which confuse Solaris make. (See the Autoconf manual for
3263 # details.) Therefore we use a specific rule in this case. This
3264 # applies to info files only (dvi and pdf files always have an
3266 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3268 # If the resulting file lie into a subdirectory,
3269 # make sure this directory will exist.
3270 my $dirstamp = require_build_directory_maybe ($dest);
3272 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3274 $output_rules .= file_contents ('texibuild',
3275 new Automake::Location,
3277 DEST_PREFIX => $dpfx,
3278 DEST_INFO_PREFIX => $dipfx,
3279 DEST_SUFFIX => $dsfx,
3280 DIRSTAMP => $dirstamp,
3281 GENERIC => $generic,
3282 GENERIC_INFO => $generic_info,
3284 MAKEINFOFLAGS => $makeinfoflags,
3287 SOURCE_INFO => ($generic_info
3289 SOURCE_REAL => $source,
3290 SOURCE_SUFFIX => $ssfx,
3292 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3296 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3297 # handle_texinfo_helper ($info_texinfos)
3298 # --------------------------------------
3299 # Handle all Texinfo source; helper for handle_texinfo.
3300 sub handle_texinfo_helper ($)
3302 my ($info_texinfos) = @_;
3303 my (@infobase, @info_deps_list, @texi_deps);
3306 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3308 # Build a regex matching user-cleaned files.
3309 my $d = var 'DISTCLEANFILES';
3310 my $c = var 'CLEANFILES';
3312 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3313 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3314 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3315 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3318 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3320 my $infobase = $texi;
3321 $infobase =~ s/\.(txi|texinfo|texi)$//;
3323 if ($infobase eq $texi)
3325 # FIXME: report line number.
3326 err_am "texinfo file `$texi' has unrecognized extension";
3330 push @infobase, $infobase;
3332 # If 'version.texi' is referenced by input file, then include
3333 # automatic versioning capability.
3334 my ($out_file, $vtexi, @clean_files) =
3335 scan_texinfo_file ("$relative_dir/$texi")
3337 push (@mostly_cleans, @clean_files);
3339 # If the Texinfo source is in a subdirectory, create the
3340 # resulting info in this subdirectory. If it is in the current
3341 # directory, try hard to not prefix "./" because it breaks the
3343 my $outdir = dirname ($texi) . '/';
3344 $outdir = "" if $outdir eq './';
3345 $out_file = $outdir . $out_file;
3347 # Until Automake 1.6.3, .info files were built in the
3348 # source tree. This was an obstacle to the support of
3349 # non-distributed .info files, and non-distributed .texi
3352 # * Non-distributed .texi files is important in some packages
3353 # where .texi files are built at make time, probably using
3354 # other binaries built in the package itself, maybe using
3355 # tools or information found on the build host. Because
3356 # these files are not distributed they are always rebuilt
3357 # at make time; they should therefore not lie in the source
3358 # directory. One plan was to support this using
3359 # nodist_info_TEXINFOS or something similar. (Doing this
3360 # requires some sanity checks. For instance Automake should
3362 # dist_info_TEXINFOS = foo.texi
3363 # nodist_foo_TEXINFOS = included.texi
3364 # because a distributed file should never depend on a
3365 # non-distributed file.)
3367 # * If .texi files are not distributed, then .info files should
3368 # not be distributed either. There are also cases where one
3369 # wants to distribute .texi files, but does not want to
3370 # distribute the .info files. For instance the Texinfo package
3371 # distributes the tool used to build these files; it would
3372 # be a waste of space to distribute them. It's not clear
3373 # which syntax we should use to indicate that .info files should
3374 # not be distributed. Akim Demaille suggested that eventually
3375 # we switch to a new syntax:
3376 # | Maybe we should take some inspiration from what's already
3377 # | done in the rest of Automake. Maybe there is too much
3378 # | syntactic sugar here, and you want
3379 # | nodist_INFO = bar.info
3380 # | dist_bar_info_SOURCES = bar.texi
3381 # | bar_texi_DEPENDENCIES = foo.texi
3382 # | with a bit of magic to have bar.info represent the whole
3383 # | bar*info set. That's a lot more verbose that the current
3384 # | situation, but it is # not new, hence the user has less
3387 # | But there is still too much room for meaningless specs:
3388 # | nodist_INFO = bar.info
3389 # | dist_bar_info_SOURCES = bar.texi
3390 # | dist_PS = bar.ps something-written-by-hand.ps
3391 # | nodist_bar_ps_SOURCES = bar.texi
3392 # | bar_texi_DEPENDENCIES = foo.texi
3393 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3395 # Back to the point, it should be clear that in order to support
3396 # non-distributed .info files, we need to build them in the
3397 # build tree, not in the source tree (non-distributed .texi
3398 # files are less of a problem, because we do not output build
3399 # rules for them). In Automake 1.7 .info build rules have been
3400 # largely cleaned up so that .info files get always build in the
3401 # build tree, even when distributed. The idea was that
3402 # (1) if during a VPATH build the .info file was found to be
3403 # absent or out-of-date (in the source tree or in the
3404 # build tree), Make would rebuild it in the build tree.
3405 # If an up-to-date source-tree of the .info file existed,
3406 # make would not rebuild it in the build tree.
3407 # (2) having two copies of .info files, one in the source tree
3408 # and one (newer) in the build tree is not a problem
3409 # because `make dist' always pick files in the build tree
3411 # However it turned out the be a bad idea for several reasons:
3412 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3413 # like GNU Make on point (1) above. These implementations
3414 # of Make would always rebuild .info files in the build
3415 # tree, even if such files were up to date in the source
3416 # tree. Consequently, it was impossible to perform a VPATH
3417 # build of a package containing Texinfo files using these
3418 # Make implementations.
3419 # (Refer to the Autoconf Manual, section "Limitation of
3420 # Make", paragraph "VPATH", item "target lookup", for
3421 # an account of the differences between these
3423 # * The GNU Coding Standards require these files to be built
3424 # in the source-tree (when they are distributed, that is).
3425 # * Keeping a fresher copy of distributed files in the
3426 # build tree can be annoying during development because
3427 # - if the files is kept under CVS, you really want it
3428 # to be updated in the source tree
3429 # - it is confusing that `make distclean' does not erase
3430 # all files in the build tree.
3432 # Consequently, starting with Automake 1.8, .info files are
3433 # built in the source tree again. Because we still plan to
3434 # support non-distributed .info files at some point, we
3435 # have a single variable ($INSRC) that controls whether
3436 # the current .info file must be built in the source tree
3437 # or in the build tree. Actually this variable is switched
3438 # off for .info files that appear to be cleaned; this is
3439 # for backward compatibility with package such as Texinfo,
3440 # which do things like
3441 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3442 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3443 # # Do not create info files for distribution.
3445 # in order not to distribute .info files.
3446 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3448 my $soutdir = '$(srcdir)/' . $outdir;
3449 $outdir = $soutdir if $insrc;
3451 # If user specified file_TEXINFOS, then use that as explicit
3454 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3456 my $canonical = canonicalize ($infobase);
3457 if (var ($canonical . "_TEXINFOS"))
3459 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3460 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3463 my ($dirstamp, @cfiles) =
3464 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3465 push (@texi_cleans, @cfiles);
3467 push (@info_deps_list, $out_file);
3469 # If a vers*.texi file is needed, emit the rule.
3472 err_am ("`$vtexi', included in `$texi', "
3473 . "also included in `$versions{$vtexi}'")
3474 if defined $versions{$vtexi};
3475 $versions{$vtexi} = $texi;
3477 # We number the stamp-vti files. This is doable since the
3478 # actual names don't matter much. We only number starting
3479 # with the second one, so that the common case looks nice.
3480 my $vti = ($done ? $done : 'vti');
3483 # This is ugly, but it is our historical practice.
3484 if ($config_aux_dir_set_in_configure_ac)
3486 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3491 require_file_with_macro (TRUE, 'info_TEXINFOS',
3492 FOREIGN, 'mdate-sh');
3496 if ($config_aux_dir_set_in_configure_ac)
3498 $conf_dir = "$am_config_aux_dir/";
3502 $conf_dir = '$(srcdir)/';
3504 $output_rules .= file_contents ('texi-vers',
3505 new Automake::Location,
3508 STAMPVTI => "${soutdir}stamp-$vti",
3509 VTEXI => "$soutdir$vtexi",
3511 DIRSTAMP => $dirstamp);
3515 # Handle location of texinfo.tex.
3516 my $need_texi_file = 0;
3518 if (var ('TEXINFO_TEX'))
3520 # The user defined TEXINFO_TEX so assume he knows what he is
3522 $texinfodir = ('$(srcdir)/'
3523 . dirname (variable_value ('TEXINFO_TEX')));
3525 elsif (option 'cygnus')
3527 $texinfodir = '$(top_srcdir)/../texinfo';
3528 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3530 elsif ($config_aux_dir_set_in_configure_ac)
3532 $texinfodir = $am_config_aux_dir;
3533 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3534 $need_texi_file = 2; # so that we require_conf_file later
3538 $texinfodir = '$(srcdir)';
3539 $need_texi_file = 1;
3541 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3543 push (@dist_targets, 'dist-info');
3545 if (! option 'no-installinfo')
3547 # Make sure documentation is made and installed first. Use
3548 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3549 # get run twice during "make all".
3550 unshift (@all, '$(INFO_DEPS)');
3553 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3554 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3555 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3556 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3558 # This next isn't strictly needed now -- the places that look here
3559 # could easily be changed to look in info_TEXINFOS. But this is
3560 # probably better, in case noinst_TEXINFOS is ever supported.
3561 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3563 # Do some error checking. Note that this file is not required
3564 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3566 if ($need_texi_file && ! option 'no-texinfo.tex')
3568 if ($need_texi_file > 1)
3570 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3575 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3580 return (makefile_wrap ("", "\t ", @mostly_cleans),
3581 makefile_wrap ("", "\t ", @texi_cleans),
3582 makefile_wrap ("", "\t ", @maint_cleans));
3588 # Handle all Texinfo source.
3589 sub handle_texinfo ()
3591 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3592 # FIXME: I think this is an obsolete future feature name.
3593 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3595 my $info_texinfos = var ('info_TEXINFOS');
3596 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3599 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3605 $output_rules .= file_contents ('texinfos',
3606 new Automake::Location,
3607 MOSTLYCLEAN => $mostlyclean,
3608 TEXICLEAN => $clean,
3609 MAINTCLEAN => $maintclean,
3610 'LOCAL-TEXIS' => !!$info_texinfos);
3614 # Handle any man pages.
3615 sub handle_man_pages
3617 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3619 # Find all the sections in use. We do this by first looking for
3620 # "standard" sections, and then looking for any additional
3621 # sections used in man_MANS.
3622 my (%sections, %notrans_sections, %trans_sections,
3623 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3624 # We handle nodist_ for uniformity. man pages aren't distributed
3625 # by default so it isn't actually very important.
3626 foreach my $npfx ('', 'notrans_')
3628 foreach my $pfx ('', 'dist_', 'nodist_')
3630 # Add more sections as needed.
3631 foreach my $section ('0'..'9', 'n', 'l')
3633 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3636 $sections{$section} = 1;
3637 $varname = '$(' . $varname . ')';
3638 if ($npfx eq 'notrans_')
3640 $notrans_sections{$section} = 1;
3641 $notrans_sect_vars{$varname} = 1;
3645 $trans_sections{$section} = 1;
3646 $trans_sect_vars{$varname} = 1;
3649 &push_dist_common ($varname)
3654 my $varname = $npfx . $pfx . 'man_MANS';
3655 my $var = var ($varname);
3658 foreach ($var->value_as_list_recursive)
3660 # A page like `foo.1c' goes into man1dir.
3661 if (/\.([0-9a-z])([a-z]*)$/)
3664 if ($npfx eq 'notrans_')
3666 $notrans_sections{$1} = 1;
3670 $trans_sections{$1} = 1;
3675 $varname = '$(' . $varname . ')';
3676 if ($npfx eq 'notrans_')
3678 $notrans_vars{$varname} = 1;
3682 $trans_vars{$varname} = 1;
3684 &push_dist_common ($varname)
3690 return unless %sections;
3694 # Build section independent variables.
3695 my $have_notrans = %notrans_vars;
3696 my @notrans_list = sort keys %notrans_vars;
3697 my $have_trans = %trans_vars;
3698 my @trans_list = sort keys %trans_vars;
3700 # Now for each section, generate an install and uninstall rule.
3701 # Sort sections so output is deterministic.
3702 foreach my $section (sort keys %sections)
3704 # Build section dependent variables.
3705 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3706 my $trans_mans = $have_trans || exists $trans_sections{$section};
3707 my (%notrans_this_sect, %trans_this_sect);
3708 my $expr = 'man' . $section . '_MANS';
3709 foreach my $varname (keys %notrans_sect_vars)
3711 if ($varname =~ /$expr/)
3713 $notrans_this_sect{$varname} = 1;
3716 foreach my $varname (keys %trans_sect_vars)
3718 if ($varname =~ /$expr/)
3720 $trans_this_sect{$varname} = 1;
3723 my @notrans_sect_list = sort keys %notrans_this_sect;
3724 my @trans_sect_list = sort keys %trans_this_sect;
3725 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3726 keys %notrans_this_sect, keys %trans_this_sect);
3727 my @deps = sort @unsorted_deps;
3728 $output_rules .= &file_contents ('mans',
3729 new Automake::Location,
3730 SECTION => $section,
3732 NOTRANS_MANS => $notrans_mans,
3733 NOTRANS_SECT_LIST => "@notrans_sect_list",
3734 HAVE_NOTRANS => $have_notrans,
3735 NOTRANS_LIST => "@notrans_list",
3736 TRANS_MANS => $trans_mans,
3737 TRANS_SECT_LIST => "@trans_sect_list",
3738 HAVE_TRANS => $have_trans,
3739 TRANS_LIST => "@trans_list");
3742 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3743 keys %notrans_sect_vars, keys %trans_sect_vars);
3744 my @mans = sort @unsorted_deps;
3745 $output_vars .= file_contents ('mans-vars',
3746 new Automake::Location,
3749 push (@all, '$(MANS)')
3750 unless option 'no-installman';
3753 # Handle DATA variables.
3756 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3757 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3758 'ps', 'sysconf', 'sharedstate', 'localstate',
3759 'pkgdata', 'lisp', 'noinst', 'check');
3767 if (var ('SUBDIRS'))
3769 $output_rules .= ("tags-recursive:\n"
3770 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3771 # Never fail here if a subdir fails; it
3773 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3774 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3776 push (@tag_deps, 'tags-recursive');
3777 &depend ('.PHONY', 'tags-recursive');
3778 &depend ('.MAKE', 'tags-recursive');
3780 $output_rules .= ("ctags-recursive:\n"
3781 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3782 # Never fail here if a subdir fails; it
3784 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3785 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3787 push (@ctag_deps, 'ctags-recursive');
3788 &depend ('.PHONY', 'ctags-recursive');
3789 &depend ('.MAKE', 'ctags-recursive');
3792 if (&saw_sources_p (1)
3793 || var ('ETAGS_ARGS')
3797 foreach my $spec (@config_headers)
3799 my ($out, @ins) = split_config_file_spec ($spec);
3800 foreach my $in (@ins)
3802 # If the config header source is in this directory,
3804 push @config, basename ($in)
3805 if $relative_dir eq dirname ($in);
3808 $output_rules .= &file_contents ('tags',
3809 new Automake::Location,
3810 CONFIG => "@config",
3811 TAGSDIRS => "@tag_deps",
3812 CTAGSDIRS => "@ctag_deps");
3814 set_seen 'TAGS_DEPENDENCIES';
3816 elsif (reject_var ('TAGS_DEPENDENCIES',
3817 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3818 . "without\nsources or `ETAGS_ARGS'"))
3823 # Every Makefile must define some sort of TAGS rule.
3824 # Otherwise, it would be possible for a top-level "make TAGS"
3825 # to fail because some subdirectory failed.
3826 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3828 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3832 # Handle multilib support.
3835 if ($seen_multilib && $relative_dir eq '.')
3837 $output_rules .= &file_contents ('multilib', new Automake::Location);
3838 push (@all, 'all-multi');
3843 # user_phony_rule ($NAME)
3844 # -----------------------
3845 # Return false if rule $NAME does not exist. Otherwise,
3846 # declare it as phony, complete its definition (in case it is
3847 # conditional), and return its Automake::Rule instance.
3848 sub user_phony_rule ($)
3851 my $rule = rule $name;
3854 depend ('.PHONY', $name);
3855 # Define $NAME in all condition where it is not already defined,
3856 # so that it is always OK to depend on $NAME.
3857 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3859 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3861 $output_rules .= $c->subst_string . "$name:\n";
3869 # &for_dist_common ($A, $B)
3870 # -------------------------
3871 # Subroutine for &handle_dist: sort files to dist.
3873 # We put README first because it then becomes easier to make a
3874 # Usenet-compliant shar file (in these, README must be first).
3876 # FIXME: do more ordering of files here.
3890 # Handle 'dist' target.
3893 # Substitutions for distdir.am
3896 # Define DIST_SUBDIRS. This must always be done, regardless of the
3897 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3898 my $subdirs = var ('SUBDIRS');
3901 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3902 # to all possible directories, and use it. If DIST_SUBDIRS is
3903 # defined, just use it.
3905 # Note that we check DIST_SUBDIRS first on purpose, so that
3906 # we don't call has_conditional_contents for now reason.
3907 # (In the past one project used so many conditional subdirectories
3908 # that calling has_conditional_contents on SUBDIRS caused
3909 # automake to grow to 150Mb -- this should not happen with
3910 # the current implementation of has_conditional_contents,
3911 # but it's more efficient to avoid the call anyway.)
3912 if (var ('DIST_SUBDIRS'))
3915 elsif ($subdirs->has_conditional_contents)
3917 define_pretty_variable
3918 ('DIST_SUBDIRS', TRUE, INTERNAL,
3919 uniq ($subdirs->value_as_list_recursive));
3923 # We always define this because that is what `distclean'
3925 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3930 # The remaining definitions are only required when a dist target is used.
3931 return if option 'no-dist';
3933 # At least one of the archive formats must be enabled.
3934 if ($relative_dir eq '.')
3936 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3937 $archive_defined ||=
3938 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzma xz);
3939 error (option 'no-dist-gzip',
3940 "no-dist-gzip specified but no dist-* specified, "
3941 . "at least one archive format must be enabled")
3942 unless $archive_defined;
3945 # Look for common files that should be included in distribution.
3946 # If the aux dir is set, and it does not have a Makefile.am, then
3947 # we check for these files there as well.
3949 if ($relative_dir eq '.'
3950 && $config_aux_dir_set_in_configure_ac)
3952 if (! &is_make_dir ($config_aux_dir))
3957 foreach my $cfile (@common_files)
3959 if (dir_has_case_matching_file ($relative_dir, $cfile)
3960 # The file might be absent, but if it can be built it's ok.
3963 &push_dist_common ($cfile);
3966 # Don't use `elsif' here because a file might meaningfully
3967 # appear in both directories.
3968 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3970 &push_dist_common ("$config_aux_dir/$cfile")
3974 # We might copy elements from $configure_dist_common to
3975 # %dist_common if we think we need to. If the file appears in our
3976 # directory, we would have discovered it already, so we don't
3977 # check that. But if the file is in a subdir without a Makefile,
3978 # we want to distribute it here if we are doing `.'. Ugly!
3979 if ($relative_dir eq '.')
3981 foreach my $file (split (' ' , $configure_dist_common))
3983 push_dist_common ($file)
3984 unless is_make_dir (dirname ($file));
3988 # Files to distributed. Don't use ->value_as_list_recursive
3989 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3990 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3991 @dist_common = uniq (sort for_dist_common (@dist_common));
3992 variable_delete 'DIST_COMMON';
3993 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3995 # Now that we've processed DIST_COMMON, disallow further attempts
3997 $handle_dist_run = 1;
3999 # Scan EXTRA_DIST to see if we need to distribute anything from a
4000 # subdir. If so, add it to the list. I didn't want to do this
4001 # originally, but there were so many requests that I finally
4003 my $extra_dist = var ('EXTRA_DIST');
4005 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
4006 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
4008 # If the target `dist-hook' exists, make sure it is run. This
4009 # allows users to do random weird things to the distribution
4010 # before it is packaged up.
4011 push (@dist_targets, 'dist-hook')
4012 if user_phony_rule 'dist-hook';
4013 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
4015 my $flm = option ('filename-length-max');
4016 my $filename_filter = $flm ? '.' x $flm->[1] : '';
4018 $output_rules .= &file_contents ('distdir',
4019 new Automake::Location,
4021 FILENAME_FILTER => $filename_filter);
4025 # check_directory ($NAME, $WHERE)
4026 # -------------------------------
4027 # Ensure $NAME is a directory, and that it uses a sane name.
4028 # Use $WHERE as a location in the diagnostic, if any.
4029 sub check_directory ($$)
4031 my ($dir, $where) = @_;
4033 error $where, "required directory $relative_dir/$dir does not exist"
4034 unless -d "$relative_dir/$dir";
4036 # If an `obj/' directory exists, BSD make will enter it before
4037 # reading `Makefile'. Hence the `Makefile' in the current directory
4043 # % cat obj/Makefile
4049 # % pmake # BSD make
4052 msg ('portability', $where,
4053 "naming a subdirectory `obj' causes troubles with BSD make")
4056 # `aux' is probably the most important of the following forbidden name,
4057 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4058 msg ('portability', $where,
4059 "name `$dir' is reserved on W32 and DOS platforms")
4060 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4063 # check_directories_in_var ($VARIABLE)
4064 # ------------------------------------
4065 # Recursively check all items in variables $VARIABLE as directories
4066 sub check_directories_in_var ($)
4069 $var->traverse_recursively
4072 my ($var, $val, $cond, $full_cond) = @_;
4073 check_directory ($val, $var->rdef ($cond)->location);
4077 skip_ac_subst => 1);
4080 # &handle_subdirs ()
4081 # ------------------
4082 # Handle subdirectories.
4083 sub handle_subdirs ()
4085 my $subdirs = var ('SUBDIRS');
4089 check_directories_in_var $subdirs;
4091 my $dsubdirs = var ('DIST_SUBDIRS');
4092 check_directories_in_var $dsubdirs
4095 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4096 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4100 # ($REGEN, @DEPENDENCIES)
4103 # If aclocal.m4 creation is automated, return the list of its dependencies.
4104 sub scan_aclocal_m4 ()
4106 my $regen_aclocal = 0;
4108 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4109 set_seen 'CONFIGURE_DEPENDENCIES';
4111 if (-f 'aclocal.m4')
4113 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4115 my $aclocal = new Automake::XFile "< aclocal.m4";
4116 my $line = $aclocal->getline;
4117 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4122 if (set_seen ('ACLOCAL_M4_SOURCES'))
4124 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4125 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4126 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4127 . "It should be safe to simply remove it.");
4130 # Note that it might be possible that aclocal.m4 doesn't exist but
4131 # should be auto-generated. This case probably isn't very
4134 return ($regen_aclocal, @ac_deps);
4138 # Helper function for substitute_ac_subst_variables.
4139 sub substitute_ac_subst_variables_worker($)
4142 return "\@$token\@" if var $token;
4143 return "\${$token\}";
4146 # substitute_ac_subst_variables ($TEXT)
4147 # -------------------------------------
4148 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4150 sub substitute_ac_subst_variables ($)
4153 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4158 # &prepend_srcdir (@INPUTS)
4159 # -------------------------
4160 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4161 # if an input file has a directory part the same as the current
4162 # directory, then the directory part is simply replaced by $(srcdir).
4163 # But if the directory part is different, then $(top_srcdir) is
4165 sub prepend_srcdir (@)
4170 foreach my $single (@inputs)
4172 if (dirname ($single) eq $relative_dir)
4174 push (@newinputs, '$(srcdir)/' . basename ($single));
4178 push (@newinputs, '$(top_srcdir)/' . $single);
4185 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4186 # ---------------------------------------------------
4187 # Compute a list of dependencies appropriate for the rebuild
4189 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4190 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4191 sub rewrite_inputs_into_dependencies ($@)
4193 my ($file, @inputs) = @_;
4198 # We cannot create dependencies on shell variables.
4199 next if (substitute_ac_subst_variables $i) =~ /\$/;
4201 if (exists $ac_config_files_location{$i} && $i ne $file)
4203 my $di = dirname $i;
4204 if ($di eq $relative_dir)
4208 # In the top-level Makefile we do not use $(top_builddir), because
4209 # we are already there, and since the targets are built without
4210 # a $(top_builddir), it helps BSD Make to match them with
4212 elsif ($relative_dir ne '.')
4214 $i = '$(top_builddir)/' . $i;
4219 msg ('error', $ac_config_files_location{$file},
4220 "required file `$i' not found")
4221 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4222 ($i) = prepend_srcdir ($i);
4223 push_dist_common ($i);
4232 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4233 # ------------------------------------------------------------------
4234 # Handle remaking and configure stuff.
4235 # We need the name of the input file, to do proper remaking rules.
4236 sub handle_configure ($$$@)
4238 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4240 prog_error 'empty @inputs'
4243 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4245 my $rel_makefile = basename $makefile;
4247 my $colon_infile = ':' . join (':', @inputs);
4248 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4249 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4250 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4251 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4252 @configure_deps, @aclocal_m4_deps,
4253 '$(top_srcdir)/' . $configure_ac);
4254 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4255 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4256 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4259 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4260 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4262 $output_rules .= file_contents
4264 new Automake::Location,
4265 MAKEFILE => $rel_makefile,
4266 'MAKEFILE-DEPS' => "@rewritten",
4267 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4268 'MAKEFILE-IN' => $rel_makefile_in,
4269 'MAKEFILE-IN-DEPS' => "@include_stack",
4270 'MAKEFILE-AM' => $rel_makefile_am,
4271 'AUTOMAKE-OPTIONS' => $automake_options,
4272 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4273 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4274 VERBOSE => verbose_flag ('GEN'));
4276 if ($relative_dir eq '.')
4278 &push_dist_common ('acconfig.h')
4282 # If we have a configure header, require it.
4284 my @distclean_config;
4285 foreach my $spec (@config_headers)
4288 # $CONFIG_H_PATH: config.h from top level.
4289 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4290 my $config_h_dir = dirname ($config_h_path);
4292 # If the header is in the current directory we want to build
4293 # the header here. Otherwise, if we're at the topmost
4294 # directory and the header's directory doesn't have a
4295 # Makefile, then we also want to build the header.
4296 if ($relative_dir eq $config_h_dir
4297 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4299 my ($cn_sans_dir, $stamp_dir);
4300 if ($relative_dir eq $config_h_dir)
4302 $cn_sans_dir = basename ($config_h_path);
4307 $cn_sans_dir = $config_h_path;
4308 if ($config_h_dir eq '.')
4314 $stamp_dir = $config_h_dir . '/';
4318 # This will also distribute all inputs.
4319 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4321 # Cannot define rebuild rules for filenames with shell variables.
4322 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4324 # Header defined in this directory.
4326 if (-f $config_h_path . '.top')
4328 push (@files, "$cn_sans_dir.top");
4330 if (-f $config_h_path . '.bot')
4332 push (@files, "$cn_sans_dir.bot");
4335 push_dist_common (@files);
4337 # For now, acconfig.h can only appear in the top srcdir.
4338 if (-f 'acconfig.h')
4340 push (@files, '$(top_srcdir)/acconfig.h');
4343 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4345 file_contents ('remake-hdr',
4346 new Automake::Location,
4348 CONFIG_H => $cn_sans_dir,
4349 CONFIG_HIN => $ins[0],
4350 CONFIG_H_DEPS => "@ins",
4351 CONFIG_H_PATH => $config_h_path,
4354 push @distclean_config, $cn_sans_dir, $stamp;
4358 $output_rules .= file_contents ('clean-hdr',
4359 new Automake::Location,
4360 FILES => "@distclean_config")
4361 if @distclean_config;
4363 # Distribute and define mkinstalldirs only if it is already present
4364 # in the package, for backward compatibility (some people may still
4365 # use $(mkinstalldirs)).
4366 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4369 # Use require_file so that any existing script gets updated
4370 # by --force-missing.
4371 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4372 define_variable ('mkinstalldirs',
4373 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4377 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4378 # at least one argument, and $(mkinstalldirs) used to work
4379 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4380 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4383 reject_var ('CONFIG_HEADER',
4384 "`CONFIG_HEADER' is an anachronism; now determined "
4385 . "automatically\nfrom `$configure_ac'");
4388 foreach my $spec (@config_headers)
4390 my ($out, @ins) = split_config_file_spec ($spec);
4391 # Generate CONFIG_HEADER define.
4392 if ($relative_dir eq dirname ($out))
4394 push @config_h, basename ($out);
4398 push @config_h, "\$(top_builddir)/$out";
4401 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4404 # Now look for other files in this directory which must be remade
4405 # by config.status, and generate rules for them.
4406 my @actual_other_files = ();
4407 # These get cleaned only in a VPATH build.
4408 my @actual_other_vpath_files = ();
4409 foreach my $lfile (@other_input_files)
4413 if ($lfile =~ /^([^:]*):(.*)$/)
4415 # This is the ":" syntax of AC_OUTPUT.
4417 @inputs = split (':', $2);
4423 @inputs = $file . '.in';
4426 # Automake files should not be stored in here, but in %MAKE_LIST.
4427 prog_error ("$lfile in \@other_input_files\n"
4428 . "\@other_input_files = (@other_input_files)")
4429 if -f $file . '.am';
4431 my $local = basename ($file);
4433 # We skip files that aren't in this directory. However, if
4434 # the file's directory does not have a Makefile, and we are
4435 # currently doing `.', then we create a rule to rebuild the
4436 # file in the subdir.
4437 my $fd = dirname ($file);
4438 if ($fd ne $relative_dir)
4440 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4450 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4452 # Cannot output rules for shell variables.
4453 next if (substitute_ac_subst_variables $local) =~ /\$/;
4456 my $cond = $ac_config_files_condition{$lfile};
4459 $condstr = $cond->subst_string;
4460 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4461 $ac_config_files_location{$file});
4463 $output_rules .= ($condstr . $local . ': '
4464 . '$(top_builddir)/config.status '
4465 . "@rewritten_inputs\n"
4467 . 'cd $(top_builddir) && '
4468 . '$(SHELL) ./config.status '
4469 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4472 push (@actual_other_files, $local);
4475 # For links we should clean destinations and distribute sources.
4476 foreach my $spec (@config_links)
4478 my ($link, $file) = split /:/, $spec;
4479 # Some people do AC_CONFIG_LINKS($computed). We only handle
4480 # the DEST:SRC form.
4482 my $where = $ac_config_files_location{$link};
4484 # Skip destinations that contain shell variables.
4485 if ((substitute_ac_subst_variables $link) !~ /\$/)
4487 # We skip links that aren't in this directory. However, if
4488 # the link's directory does not have a Makefile, and we are
4489 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4490 # in `.'s Makefile.in.
4491 my $local = basename ($link);
4492 my $fd = dirname ($link);
4493 if ($fd ne $relative_dir)
4495 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4506 push @actual_other_files, $local if $local;
4510 push @actual_other_vpath_files, $local if $local;
4514 # Do not process sources that contain shell variables.
4515 if ((substitute_ac_subst_variables $file) !~ /\$/)
4517 my $fd = dirname ($file);
4519 # We distribute files that are in this directory.
4520 # At the top-level (`.') we also distribute files whose
4521 # directory does not have a Makefile.
4522 if (($fd eq $relative_dir)
4523 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4525 # The following will distribute $file as a side-effect when
4526 # it is appropriate (i.e., when $file is not already an output).
4527 # We do not need the result, just the side-effect.
4528 rewrite_inputs_into_dependencies ($link, $file);
4533 # These files get removed by "make distclean".
4534 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4535 @actual_other_files);
4536 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4537 @actual_other_vpath_files);
4543 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4544 'oldinclude', 'pkginclude',
4548 next unless $_->[1] =~ /\..*$/;
4549 &saw_extension ($&);
4555 return if ! $seen_gettext || $relative_dir ne '.';
4557 my $subdirs = var 'SUBDIRS';
4561 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4565 # Perform some sanity checks to help users get the right setup.
4566 # We disable these tests when po/ doesn't exist in order not to disallow
4567 # unusual gettext setups.
4572 # | 1) If a package doesn't have a directory po/ at top level, it
4573 # | will likely have multiple po/ directories in subpackages.
4575 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4576 # | is used without 'external'. It is also useful to warn for the
4577 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4578 # | warnings apply only to the usual layout of packages, therefore
4579 # | they should both be disabled if no po/ directory is found at
4584 my @subdirs = $subdirs->value_as_list_recursive;
4586 msg_var ('syntax', $subdirs,
4587 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4588 if ! grep ($_ eq 'po', @subdirs);
4590 # intl/ is not required when AM_GNU_GETTEXT is called with the
4591 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4592 msg_var ('syntax', $subdirs,
4593 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4594 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4595 && ! grep ($_ eq 'intl', @subdirs));
4597 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4598 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4599 msg_var ('syntax', $subdirs,
4600 "`intl' should not be in SUBDIRS when "
4601 . "AM_GNU_GETTEXT([external]) is used")
4602 if ($seen_gettext_external && ! $seen_gettext_intl
4603 && grep ($_ eq 'intl', @subdirs));
4606 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4609 # Handle footer elements.
4612 reject_rule ('.SUFFIXES',
4613 "use variable `SUFFIXES', not target `.SUFFIXES'");
4615 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4616 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4617 # anything else, by sticking it right after the default: target.
4618 $output_header .= ".SUFFIXES:\n";
4619 my $suffixes = var 'SUFFIXES';
4620 my @suffixes = Automake::Rule::suffixes;
4621 if (@suffixes || $suffixes)
4623 # Make sure SUFFIXES has unique elements. Sort them to ensure
4624 # the output remains consistent. However, $(SUFFIXES) is
4625 # always at the start of the list, unsorted. This is done
4626 # because make will choose rules depending on the ordering of
4627 # suffixes, and this lets the user have some control. Push
4628 # actual suffixes, and not $(SUFFIXES). Some versions of make
4629 # do not like variable substitutions on the .SUFFIXES line.
4630 my @user_suffixes = ($suffixes
4631 ? $suffixes->value_as_list_recursive : ());
4633 my %suffixes = map { $_ => 1 } @suffixes;
4634 delete @suffixes{@user_suffixes};
4636 $output_header .= (".SUFFIXES: "
4637 . join (' ', @user_suffixes, sort keys %suffixes)
4641 $output_trailer .= file_contents ('footer', new Automake::Location);
4645 # Generate `make install' rules.
4646 sub handle_install ()
4648 $output_rules .= &file_contents
4650 new Automake::Location,
4651 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4652 ? (" \$(BUILT_SOURCES)\n"
4653 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4655 'installdirs-local' => (user_phony_rule 'installdirs-local'
4656 ? ' installdirs-local' : ''),
4657 am__installdirs => variable_value ('am__installdirs') || '');
4661 # Deal with all and all-am.
4664 my ($makefile) = @_;
4668 # Put this at the beginning for the sake of non-GNU makes. This
4669 # is still wrong if these makes can run parallel jobs. But it is
4671 unshift (@all, basename ($makefile));
4673 foreach my $spec (@config_headers)
4675 my ($out, @ins) = split_config_file_spec ($spec);
4676 push (@all, basename ($out))
4677 if dirname ($out) eq $relative_dir;
4680 # Install `all' hooks.
4681 push (@all, "all-local")
4682 if user_phony_rule "all-local";
4684 &pretty_print_rule ("all-am:", "\t\t", @all);
4685 &depend ('.PHONY', 'all-am', 'all');
4690 my @local_headers = ();
4691 push @local_headers, '$(BUILT_SOURCES)'
4692 if var ('BUILT_SOURCES');
4693 foreach my $spec (@config_headers)
4695 my ($out, @ins) = split_config_file_spec ($spec);
4696 push @local_headers, basename ($out)
4697 if dirname ($out) eq $relative_dir;
4702 # We need to make sure config.h is built before we recurse.
4703 # We also want to make sure that built sources are built
4704 # before any ordinary `all' targets are run. We can't do this
4705 # by changing the order of dependencies to the "all" because
4706 # that breaks when using parallel makes. Instead we handle
4707 # things explicitly.
4708 $output_all .= ("all: @local_headers"
4710 . '$(MAKE) $(AM_MAKEFLAGS) '
4711 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4713 depend ('.MAKE', 'all');
4717 $output_all .= "all: " . (var ('SUBDIRS')
4718 ? 'all-recursive' : 'all-am') . "\n\n";
4723 # &do_check_merge_target ()
4724 # -------------------------
4725 # Handle check merge target specially.
4726 sub do_check_merge_target ()
4728 # Include user-defined local form of target.
4729 push @check_tests, 'check-local'
4730 if user_phony_rule 'check-local';
4732 # In --cygnus mode, check doesn't depend on all.
4733 if (option 'cygnus')
4735 # Just run the local check rules.
4736 pretty_print_rule ('check-am:', "\t\t", @check);
4740 # The check target must depend on the local equivalent of
4741 # `all', to ensure all the primary targets are built. Then it
4742 # must build the local check rules.
4743 $output_rules .= "check-am: all-am\n";
4746 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4748 depend ('.MAKE', 'check-am');
4753 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4755 depend ('.MAKE', 'check-am');
4758 depend '.PHONY', 'check', 'check-am';
4759 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4760 $output_rules .= ("check: "
4761 . (var ('BUILT_SOURCES')
4762 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4764 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4766 depend ('.MAKE', 'check')
4767 if var ('BUILT_SOURCES');
4770 # handle_clean ($MAKEFILE)
4771 # ------------------------
4772 # Handle all 'clean' targets.
4773 sub handle_clean ($)
4775 my ($makefile) = @_;
4777 # Clean the files listed in user variables if they exist.
4778 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4779 if var ('MOSTLYCLEANFILES');
4780 $clean_files{'$(CLEANFILES)'} = CLEAN
4781 if var ('CLEANFILES');
4782 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4783 if var ('DISTCLEANFILES');
4784 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4785 if var ('MAINTAINERCLEANFILES');
4787 # Built sources are automatically removed by maintainer-clean.
4788 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4789 if var ('BUILT_SOURCES');
4791 # Compute a list of "rm"s to run for each target.
4792 my %rms = (MOSTLY_CLEAN, [],
4795 MAINTAINER_CLEAN, []);
4797 foreach my $file (keys %clean_files)
4799 my $when = $clean_files{$file};
4800 prog_error 'invalid entry in %clean_files'
4801 unless exists $rms{$when};
4803 my $rm = "rm -f $file";
4804 # If file is a variable, make sure when don't call `rm -f' without args.
4805 $rm ="test -z \"$file\" || $rm"
4806 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4808 push @{$rms{$when}}, "\t-$rm\n";
4811 $output_rules .= &file_contents
4813 new Automake::Location,
4814 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4815 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4816 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4817 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4818 MAKEFILE => basename $makefile,
4823 # &target_cmp ($A, $B)
4824 # --------------------
4825 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4826 # other `.TARGETS' be last.
4829 return 0 if $a eq $b;
4831 my $a1 = substr ($a, 0, 1);
4832 my $b1 = substr ($b, 0, 1);
4835 return -1 if $b1 eq '.';
4836 return 1 if $a1 eq '.';
4842 # &handle_factored_dependencies ()
4843 # --------------------------------
4844 # Handle everything related to gathered targets.
4845 sub handle_factored_dependencies
4848 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4849 'uninstall-exec-local', 'uninstall-exec-hook',
4850 'uninstall-dvi-local',
4851 'uninstall-html-local',
4852 'uninstall-info-local',
4853 'uninstall-pdf-local',
4854 'uninstall-ps-local')
4858 reject_rule ($utarg, "use `$x', not `$utarg'");
4861 reject_rule ('install-local',
4862 "use `install-data-local' or `install-exec-local', "
4863 . "not `install-local'");
4865 reject_rule ('install-hook',
4866 "use `install-data-hook' or `install-exec-hook', "
4867 . "not `install-hook'");
4869 # Install the -local hooks.
4870 foreach (keys %dependencies)
4872 # Hooks are installed on the -am targets.
4874 depend ("$_-am", "$_-local")
4875 if user_phony_rule "$_-local";
4878 # Install the -hook hooks.
4879 # FIXME: Why not be as liberal as we are with -local hooks?
4880 foreach ('install-exec', 'install-data', 'uninstall')
4882 if (user_phony_rule "$_-hook")
4884 depend ('.MAKE', "$_-am");
4885 register_action("$_-am",
4886 ("\t\@\$(NORMAL_INSTALL)\n"
4887 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4891 # All the required targets are phony.
4892 depend ('.PHONY', keys %required_targets);
4894 # Actually output gathered targets.
4895 foreach (sort target_cmp keys %dependencies)
4897 # If there is nothing about this guy, skip it.
4899 unless (@{$dependencies{$_}}
4901 || $required_targets{$_});
4903 # Define gathered targets in undefined conditions.
4904 # FIXME: Right now we must handle .PHONY as an exception,
4905 # because people write things like
4906 # .PHONY: myphonytarget
4907 # to append dependencies. This would not work if Automake
4908 # refrained from defining its own .PHONY target as it does
4909 # with other overridden targets.
4910 # Likewise for `.MAKE'.
4911 my @undefined_conds = (TRUE,);
4912 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4915 Automake::Rule::define ($_, 'internal',
4916 RULE_AUTOMAKE, TRUE, INTERNAL);
4918 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4919 foreach my $cond (@undefined_conds)
4921 my $condstr = $cond->subst_string;
4922 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4923 $output_rules .= $actions{$_} if defined $actions{$_};
4924 $output_rules .= "\n";
4930 # &handle_tests_dejagnu ()
4931 # ------------------------
4932 sub handle_tests_dejagnu
4934 push (@check_tests, 'check-DEJAGNU');
4935 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4938 # is_valid_test_extension ($EXT)
4939 # ------------------------------
4940 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4942 sub is_valid_test_extension ($)
4946 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4948 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4952 # Handle TESTS variable and other checks.
4955 if (option 'dejagnu')
4957 &handle_tests_dejagnu;
4961 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4963 reject_var ($c, "`$c' defined but `dejagnu' not in "
4964 . "`AUTOMAKE_OPTIONS'");
4970 push (@check_tests, 'check-TESTS');
4971 $output_rules .= &file_contents ('check', new Automake::Location,
4972 COLOR => !! option 'color-tests',
4973 PARALLEL_TESTS => !! option 'parallel-tests');
4975 # Tests that are known programs should have $(EXEEXT) appended.
4976 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4977 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4978 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4979 if (var ('XFAIL_TESTS'));
4981 if (option 'parallel-tests')
4983 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4984 define_variable ('TEST_SUITE_HTML', '$(TEST_SUITE_LOG:.log=.html)', INTERNAL);
4987 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4990 $at_exeext = subst ('EXEEXT');
4991 $suff = $at_exeext . ' ' . $suff;
4993 if (! var 'TEST_EXTENSIONS')
4995 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4997 my $var = var 'TEST_EXTENSIONS';
4998 # Currently, we are not able to deal with conditional contents
4999 # in TEST_EXTENSIONS.
5000 if ($var->has_conditional_contents)
5002 msg_var 'unsupported', $var,
5003 "`TEST_EXTENSIONS' cannot have conditional contents";
5005 my @test_suffixes = $var->value_as_list_recursive;
5006 if ((my @invalid_test_suffixes =
5007 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
5009 error $var->rdef (TRUE)->location,
5010 "invalid test extensions: @invalid_test_suffixes";
5012 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
5015 unshift (@test_suffixes, $at_exeext)
5016 unless $test_suffixes[0] eq $at_exeext;
5018 unshift (@test_suffixes, '');
5020 transform_variable_recursively
5021 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
5023 my ($subvar, $val, $cond, $full_cond) = @_;
5026 if $val =~ /^\@.*\@$/;
5027 $obj =~ s/\$\(EXEEXT\)$//o;
5029 if ($val =~ /(\$\((top_)?srcdir\))\//o)
5031 msg ('error', $subvar->rdef ($cond)->location,
5032 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
5035 foreach my $test_suffix (@test_suffixes)
5038 if $test_suffix eq $at_exeext || $test_suffix eq '';
5039 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
5040 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
5043 my $compile = 'LOG_COMPILE';
5044 define_variable ($compile,
5045 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
5046 $output_rules .= file_contents ('check2', new Automake::Location,
5050 COMPILE =>'$(' . $compile . ')',
5052 am__EXEEXT => 'FALSE');
5059 my $last_suffix = $test_suffixes[$#test_suffixes];
5061 foreach my $test_suffix (@test_suffixes)
5063 if ($test_suffix eq $last_suffix)
5069 $cur = 'am__test_logs' . $nhelper;
5071 define_variable ($cur,
5072 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5076 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5078 (my $ext = $test_suffix) =~ s/^\.//;
5080 my $compile = $ext . '_LOG_COMPILE';
5081 define_variable ($compile,
5082 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5083 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5084 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5085 $output_rules .= file_contents ('check2', new Automake::Location,
5089 COMPILE => '$(' . $compile . ')',
5090 EXT => $test_suffix,
5091 am__EXEEXT => $am_exeext);
5095 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5097 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5098 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5099 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5100 $clean_files{'$(TEST_SUITE_HTML)'} = MOSTLY_CLEAN;
5105 # Handle Emacs Lisp.
5106 sub handle_emacs_lisp
5108 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5111 return if ! @elfiles;
5113 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5114 map { $_->[1] } @elfiles);
5115 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5116 '$(am__ELFILES:.el=.elc)');
5117 # This one can be overridden by users.
5118 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5120 push @all, '$(ELCFILES)';
5122 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5123 'EMACS', 'lispdir');
5124 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5125 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5131 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5133 return if ! @pyfiles;
5135 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5136 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5137 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5143 my @sourcelist = &am_install_var ('-candist',
5146 return if ! @sourcelist;
5148 my @prefixes = am_primary_prefixes ('JAVA', 1,
5152 my @java_sources = ();
5153 foreach my $prefix (@prefixes)
5155 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5158 if $curs eq 'EXTRA';
5160 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5164 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5165 unless $curs eq $dir;
5171 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5174 if ($dir eq 'check')
5176 push (@check, "class$dir.stamp");
5180 push (@all, "class$dir.stamp");
5185 # Handle some of the minor options.
5186 sub handle_minor_options
5188 if (option 'readme-alpha')
5190 if ($relative_dir eq '.')
5192 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5194 msg ('error-gnits', $package_version_location,
5195 "version `$package_version' doesn't follow " .
5198 if (defined $1 && -f 'README-alpha')
5200 # This means we have an alpha release. See
5201 # GNITS_VERSION_PATTERN for details.
5202 push_dist_common ('README-alpha');
5208 ################################################################
5210 # ($OUTPUT, @INPUTS)
5211 # &split_config_file_spec ($SPEC)
5212 # -------------------------------
5213 # Decode the Autoconf syntax for config files (files, headers, links
5215 sub split_config_file_spec ($)
5218 my ($output, @inputs) = split (/:/, $spec);
5220 push @inputs, "$output.in"
5223 return ($output, @inputs);
5227 # locate_am (@POSSIBLE_SOURCES)
5228 # -----------------------------
5229 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5230 # This functions returns the first *.in file for which a *.am exists.
5231 # It returns undef otherwise.
5236 foreach my $file (@rest)
5238 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5249 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5250 # ---------------------------------------------------
5251 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5253 sub scan_autoconf_config_files ($$)
5255 my ($where, $config_files) = @_;
5257 # Look at potential Makefile.am's.
5258 foreach (split ' ', $config_files)
5260 # Must skip empty string for Perl 4.
5261 next if $_ eq "\\" || $_ eq '';
5263 # Handle $local:$input syntax.
5264 my ($local, @rest) = split (/:/);
5265 @rest = ("$local.in",) unless @rest;
5266 msg ('portability', $where,
5267 "Omit leading `./' from config file names such as `$local',"
5268 . "\nas not all make implementations treat `file' and `./file' equally.")
5269 if ($local =~ /^\.\//);
5270 my $input = locate_am @rest;
5273 # We have a file that automake should generate.
5274 $make_list{$input} = join (':', ($local, @rest));
5278 # We have a file that automake should cause to be
5279 # rebuilt, but shouldn't generate itself.
5280 push (@other_input_files, $_);
5282 $ac_config_files_location{$local} = $where;
5283 $ac_config_files_condition{$local} =
5284 new Automake::Condition (@cond_stack)
5290 # &scan_autoconf_traces ($FILENAME)
5291 # ---------------------------------
5292 sub scan_autoconf_traces ($)
5294 my ($filename) = @_;
5296 # Macros to trace, with their minimal number of arguments.
5298 # IMPORTANT: If you add a macro here, you should also add this macro
5299 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5301 AC_CANONICAL_BUILD => 0,
5302 AC_CANONICAL_HOST => 0,
5303 AC_CANONICAL_TARGET => 0,
5304 AC_CONFIG_AUX_DIR => 1,
5305 AC_CONFIG_FILES => 1,
5306 AC_CONFIG_HEADERS => 1,
5307 AC_CONFIG_LIBOBJ_DIR => 1,
5308 AC_CONFIG_LINKS => 1,
5312 AC_REQUIRE_AUX_FILE => 1,
5313 AC_SUBST_TRACE => 1,
5314 AM_AUTOMAKE_VERSION => 1,
5315 AM_CONDITIONAL => 2,
5316 AM_ENABLE_MULTILIB => 0,
5317 AM_GNU_GETTEXT => 0,
5318 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5319 AM_INIT_AUTOMAKE => 0,
5320 AM_MAINTAINER_MODE => 0,
5322 AM_PROG_CC_C_O => 0,
5323 AM_SILENT_RULES => 0,
5324 _AM_SUBST_NOTMAKE => 1,
5327 _AM_COND_ENDIF => 1,
5328 LT_SUPPORTED_TAG => 1,
5329 _LT_AC_TAGCONFIG => 0,
5335 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5337 # Use a separator unlikely to be used, not `:', the default, which
5338 # has a precise meaning for AC_CONFIG_FILES and so on.
5339 $traces .= join (' ',
5340 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5343 my $tracefh = new Automake::XFile ("$traces $filename |");
5344 verb "reading $traces";
5349 while ($_ = $tracefh->getline)
5352 my ($here, $depth, @args) = split (/::/);
5353 $where = new Automake::Location $here;
5354 my $macro = $args[0];
5356 prog_error ("unrequested trace `$macro'")
5357 unless exists $traced{$macro};
5359 # Skip and diagnose malformed calls.
5360 if ($#args < $traced{$macro})
5362 msg ('syntax', $where, "not enough arguments for $macro");
5366 # Alphabetical ordering please.
5367 if ($macro eq 'AC_CANONICAL_BUILD')
5369 if ($seen_canonical <= AC_CANONICAL_BUILD)
5371 $seen_canonical = AC_CANONICAL_BUILD;
5372 $canonical_location = $where;
5375 elsif ($macro eq 'AC_CANONICAL_HOST')
5377 if ($seen_canonical <= AC_CANONICAL_HOST)
5379 $seen_canonical = AC_CANONICAL_HOST;
5380 $canonical_location = $where;
5383 elsif ($macro eq 'AC_CANONICAL_TARGET')
5385 $seen_canonical = AC_CANONICAL_TARGET;
5386 $canonical_location = $where;
5388 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5390 if ($seen_init_automake)
5392 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5393 . "AM_INIT_AUTOMAKE...", partial => 1);
5394 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5396 $config_aux_dir = $args[1];
5397 $config_aux_dir_set_in_configure_ac = 1;
5398 $relative_dir = '.';
5399 check_directory ($config_aux_dir, $where);
5401 elsif ($macro eq 'AC_CONFIG_FILES')
5403 # Look at potential Makefile.am's.
5404 scan_autoconf_config_files ($where, $args[1]);
5406 elsif ($macro eq 'AC_CONFIG_HEADERS')
5408 foreach my $spec (split (' ', $args[1]))
5410 my ($dest, @src) = split (':', $spec);
5411 $ac_config_files_location{$dest} = $where;
5412 push @config_headers, $spec;
5415 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5417 $config_libobj_dir = $args[1];
5418 $relative_dir = '.';
5419 check_directory ($config_libobj_dir, $where);
5421 elsif ($macro eq 'AC_CONFIG_LINKS')
5423 foreach my $spec (split (' ', $args[1]))
5425 my ($dest, $src) = split (':', $spec);
5426 $ac_config_files_location{$dest} = $where;
5427 push @config_links, $spec;
5430 elsif ($macro eq 'AC_FC_SRCEXT')
5432 my $suffix = $args[1];
5433 # These flags are used as %SOURCEFLAG% in depend2.am,
5434 # where the trailing space is important.
5435 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5436 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5438 elsif ($macro eq 'AC_INIT')
5440 if (defined $args[2])
5442 $package_version = $args[2];
5443 $package_version_location = $where;
5446 elsif ($macro eq 'AC_LIBSOURCE')
5448 $libsources{$args[1]} = $here;
5450 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5452 # Only remember the first time a file is required.
5453 $required_aux_file{$args[1]} = $where
5454 unless exists $required_aux_file{$args[1]};
5456 elsif ($macro eq 'AC_SUBST_TRACE')
5458 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5459 # AC_SUBST(5), then too bad.
5460 $configure_vars{$args[1]} = $where
5461 if $args[1] =~ /^\w+$/;
5463 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5466 "version mismatch. This is Automake $VERSION,\n" .
5467 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5468 "comes from Automake $args[1]. You should recreate\n" .
5469 "aclocal.m4 with aclocal and run automake again.\n",
5470 # $? = 63 is used to indicate version mismatch to missing.
5472 if $VERSION ne $args[1];
5474 $seen_automake_version = 1;
5476 elsif ($macro eq 'AM_CONDITIONAL')
5478 $configure_cond{$args[1]} = $where;
5480 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5482 $seen_multilib = $where;
5484 elsif ($macro eq 'AM_GNU_GETTEXT')
5486 $seen_gettext = $where;
5487 $ac_gettext_location = $where;
5488 $seen_gettext_external = grep ($_ eq 'external', @args);
5490 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5492 $seen_gettext_intl = $where;
5494 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5496 $seen_init_automake = $where;
5497 if (defined $args[2])
5499 $package_version = $args[2];
5500 $package_version_location = $where;
5502 elsif (defined $args[1])
5505 if (process_global_option_list ($where,
5506 split (' ', $args[1])));
5509 elsif ($macro eq 'AM_MAINTAINER_MODE')
5511 $seen_maint_mode = $where;
5513 elsif ($macro eq 'AM_PROG_AR')
5517 elsif ($macro eq 'AM_PROG_CC_C_O')
5519 $seen_cc_c_o = $where;
5521 elsif ($macro eq 'AM_SILENT_RULES')
5523 set_global_option ('silent-rules', $where);
5525 elsif ($macro eq '_AM_COND_IF')
5527 cond_stack_if ('', $args[1], $where);
5528 error ($where, "missing m4 quoting, macro depth $depth")
5531 elsif ($macro eq '_AM_COND_ELSE')
5533 cond_stack_else ('!', $args[1], $where);
5534 error ($where, "missing m4 quoting, macro depth $depth")
5537 elsif ($macro eq '_AM_COND_ENDIF')
5539 cond_stack_endif (undef, undef, $where);
5540 error ($where, "missing m4 quoting, macro depth $depth")
5543 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5545 $ignored_configure_vars{$args[1]} = $where;
5547 elsif ($macro eq 'm4_include'
5548 || $macro eq 'm4_sinclude'
5549 || $macro eq 'sinclude')
5551 # Skip missing `sinclude'd files.
5552 next if $macro ne 'm4_include' && ! -f $args[1];
5554 # Some modified versions of Autoconf don't use
5555 # frozen files. Consequently it's possible that we see all
5556 # m4_include's performed during Autoconf's startup.
5557 # Obviously we don't want to distribute Autoconf's files
5558 # so we skip absolute filenames here.
5559 push @configure_deps, '$(top_srcdir)/' . $args[1]
5560 unless $here =~ m,^(?:\w:)?[\\/],;
5561 # Keep track of the greatest timestamp.
5564 my $mtime = mtime $args[1];
5565 $configure_deps_greatest_timestamp = $mtime
5566 if $mtime > $configure_deps_greatest_timestamp;
5569 elsif ($macro eq 'LT_SUPPORTED_TAG')
5571 $libtool_tags{$args[1]} = 1;
5572 $libtool_new_api = 1;
5574 elsif ($macro eq '_LT_AC_TAGCONFIG')
5576 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5577 # We use it to detect whether tags are supported. Our
5578 # preferred interface is LT_SUPPORTED_TAG, but it was
5579 # introduced in Libtool 1.6.
5580 if (0 == keys %libtool_tags)
5582 # Hardcode the tags supported by Libtool 1.5.
5583 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5588 error ($where, "condition stack not properly closed")
5595 # &scan_autoconf_files ()
5596 # -----------------------
5597 # Check whether we use `configure.ac' or `configure.in'.
5598 # Scan it (and possibly `aclocal.m4') for interesting things.
5599 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5600 sub scan_autoconf_files ()
5602 # Reinitialize libsources here. This isn't really necessary,
5603 # since we currently assume there is only one configure.ac. But
5604 # that won't always be the case.
5607 # Keep track of the youngest configure dependency.
5608 $configure_deps_greatest_timestamp = mtime $configure_ac;
5609 if (-e 'aclocal.m4')
5611 my $mtime = mtime 'aclocal.m4';
5612 $configure_deps_greatest_timestamp = $mtime
5613 if $mtime > $configure_deps_greatest_timestamp;
5616 scan_autoconf_traces ($configure_ac);
5618 @configure_input_files = sort keys %make_list;
5619 # Set input and output files if not specified by user.
5622 @input_files = @configure_input_files;
5623 %output_files = %make_list;
5627 if (! $seen_init_automake)
5629 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5630 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5631 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5632 . "and that aclocal.m4 was recently regenerated "
5633 . "(using aclocal).");
5637 if (! $seen_automake_version)
5639 if (-f 'aclocal.m4')
5641 error ($seen_init_automake,
5642 "your implementation of AM_INIT_AUTOMAKE comes from " .
5643 "an\nold Automake version. You should recreate " .
5644 "aclocal.m4\nwith aclocal and run automake again.\n",
5645 # $? = 63 is used to indicate version mismatch to missing.
5650 error ($seen_init_automake,
5651 "no proper implementation of AM_INIT_AUTOMAKE was " .
5652 "found,\nprobably because aclocal.m4 is missing...\n" .
5653 "You should run aclocal to create this file, then\n" .
5654 "run automake again.\n");
5661 # Reorder @input_files so that the Makefile that distributes aux
5662 # files is processed last. This is important because each directory
5663 # can require auxiliary scripts and we should wait until they have
5664 # been installed before distributing them.
5666 # The Makefile.in that distribute the aux files is the one in
5667 # $config_aux_dir or the top-level Makefile.
5668 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5669 my @new_input_files = ();
5670 while (@input_files)
5672 my $in = pop @input_files;
5673 my @ins = split (/:/, $output_files{$in});
5674 if (dirname ($ins[0]) eq $auxdirdist)
5676 push @new_input_files, $in;
5677 $automake_will_process_aux_dir = 1;
5681 unshift @new_input_files, $in;
5684 @input_files = @new_input_files;
5686 # If neither the auxdir/Makefile nor the ./Makefile are generated
5687 # by Automake, we won't distribute the aux files anyway. Assume
5688 # the user know what (s)he does, and pretend we will distribute
5689 # them to disable the error in require_file_internal.
5690 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5692 # Look for some files we need. Always check for these. This
5693 # check must be done for every run, even those where we are only
5694 # looking at a subdir Makefile. We must set relative_dir for
5695 # maybe_push_required_file to work.
5696 # Sort the files for stable verbose output.
5697 $relative_dir = '.';
5698 foreach my $file (sort keys %required_aux_file)
5700 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5702 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5703 if -f $config_aux_dir . '/install.sh';
5705 # Preserve dist_common for later.
5706 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5710 ################################################################
5712 # Set up for Cygnus mode.
5715 my $cygnus = option 'cygnus';
5716 return unless $cygnus;
5718 set_strictness ('foreign');
5719 set_option ('no-installinfo', $cygnus);
5720 set_option ('no-dependencies', $cygnus);
5721 set_option ('no-dist', $cygnus);
5723 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5724 if !$seen_maint_mode;
5727 # Do any extra checking for GNU standards.
5728 sub check_gnu_standards
5730 if ($relative_dir eq '.')
5732 # In top level (or only) directory.
5733 require_file ("$am_file.am", GNU,
5734 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5736 # Accept one of these three licenses; default to COPYING.
5737 # Make sure we do not overwrite an existing license.
5739 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5747 require_file ("$am_file.am", GNU, 'COPYING')
5751 for my $opt ('no-installman', 'no-installinfo')
5753 msg ('error-gnu', option $opt,
5754 "option `$opt' disallowed by GNU standards")
5759 # Do any extra checking for GNITS standards.
5760 sub check_gnits_standards
5762 if ($relative_dir eq '.')
5764 # In top level (or only) directory.
5765 require_file ("$am_file.am", GNITS, 'THANKS');
5769 ################################################################
5771 # Functions to handle files of each language.
5773 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5774 # simple formula: Return value is LANG_SUBDIR if the resulting object
5775 # file should be in a subdir if the source file is, LANG_PROCESS if
5776 # file is to be dealt with, LANG_IGNORE otherwise.
5778 # Much of the actual processing is handled in
5779 # handle_single_transform. These functions exist so that
5780 # auxiliary information can be recorded for a later cleanup pass.
5781 # Note that the calls to these functions are computed, so don't bother
5782 # searching for their precise names in the source.
5784 # This is just a convenience function that can be used to determine
5785 # when a subdir object should be used.
5788 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5791 # Rewrite a single C source file.
5794 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5796 if (option 'ansi2knr' && $base =~ /_$/)
5798 # FIXME: include line number in error.
5799 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5802 my $r = LANG_PROCESS;
5803 if (option 'subdir-objects')
5806 if ($directory && $directory ne '.')
5808 $base = $directory . '/' . $base;
5810 # libtool is always able to put the object at the proper place,
5811 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5812 msg_var ('portability', $var,
5813 "compiling `$base.c' in subdir requires "
5814 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5815 uniq_scope => US_GLOBAL,
5816 uniq_part => 'AM_PROG_CC_C_O subdir')
5817 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5820 # In this case we already have the directory information, so
5821 # don't add it again.
5822 $de_ansi_files{$base} = '';
5826 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5832 && $have_per_exec_flags
5833 && ! option 'subdir-objects'
5834 && $nonansi_obj ne '.lo')
5836 msg_var ('portability',
5837 $var, "compiling `$base.c' with per-target flags requires "
5838 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5839 uniq_scope => US_GLOBAL,
5840 uniq_part => 'AM_PROG_CC_C_O per-target')
5846 # Rewrite a single C++ source file.
5847 sub lang_cxx_rewrite
5849 return &lang_sub_obj;
5852 # Rewrite a single header file.
5853 sub lang_header_rewrite
5855 # Header files are simply ignored.
5859 # Rewrite a single Vala source file.
5860 sub lang_vala_rewrite
5862 my ($directory, $base, $ext) = @_;
5864 (my $newext = $ext) =~ s/vala$/c/;
5865 return (LANG_SUBDIR, $newext);
5868 # Rewrite a single yacc file.
5869 sub lang_yacc_rewrite
5871 my ($directory, $base, $ext) = @_;
5873 my $r = &lang_sub_obj;
5874 (my $newext = $ext) =~ tr/y/c/;
5875 return ($r, $newext);
5878 # Rewrite a single yacc++ file.
5879 sub lang_yaccxx_rewrite
5881 my ($directory, $base, $ext) = @_;
5883 my $r = &lang_sub_obj;
5884 (my $newext = $ext) =~ tr/y/c/;
5885 return ($r, $newext);
5888 # Rewrite a single lex file.
5889 sub lang_lex_rewrite
5891 my ($directory, $base, $ext) = @_;
5893 my $r = &lang_sub_obj;
5894 (my $newext = $ext) =~ tr/l/c/;
5895 return ($r, $newext);
5898 # Rewrite a single lex++ file.
5899 sub lang_lexxx_rewrite
5901 my ($directory, $base, $ext) = @_;
5903 my $r = &lang_sub_obj;
5904 (my $newext = $ext) =~ tr/l/c/;
5905 return ($r, $newext);
5908 # Rewrite a single assembly file.
5909 sub lang_asm_rewrite
5911 return &lang_sub_obj;
5914 # Rewrite a single preprocessed assembly file.
5915 sub lang_cppasm_rewrite
5917 return &lang_sub_obj;
5920 # Rewrite a single Fortran 77 file.
5921 sub lang_f77_rewrite
5923 return &lang_sub_obj;
5926 # Rewrite a single Fortran file.
5929 return &lang_sub_obj;
5932 # Rewrite a single preprocessed Fortran file.
5933 sub lang_ppfc_rewrite
5935 return &lang_sub_obj;
5938 # Rewrite a single preprocessed Fortran 77 file.
5939 sub lang_ppf77_rewrite
5941 return &lang_sub_obj;
5944 # Rewrite a single ratfor file.
5945 sub lang_ratfor_rewrite
5947 return &lang_sub_obj;
5950 # Rewrite a single Objective C file.
5951 sub lang_objc_rewrite
5953 return &lang_sub_obj;
5956 # Rewrite a single Unified Parallel C file.
5957 sub lang_upc_rewrite
5959 return &lang_sub_obj;
5962 # Rewrite a single Java file.
5963 sub lang_java_rewrite
5968 # The lang_X_finish functions are called after all source file
5969 # processing is done. Each should handle defining rules for the
5970 # language, etc. A finish function is only called if a source file of
5971 # the appropriate type has been seen.
5975 # Push all libobjs files onto de_ansi_files. We actually only
5976 # push files which exist in the current directory, and which are
5977 # genuine source files.
5978 foreach my $file (keys %libsources)
5980 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5982 $de_ansi_files{$1} = ''
5986 if (option 'ansi2knr' && keys %de_ansi_files)
5988 # Make all _.c files depend on their corresponding .c files.
5990 foreach my $base (sort keys %de_ansi_files)
5992 # Each _.c file must depend on ansi2knr; otherwise it
5993 # might be used in a parallel build before it is built.
5994 # We need to support files in the srcdir and in the build
5995 # dir (because these files might be auto-generated. But
5996 # we can't use $< -- some makes only define $< during a
5998 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5999 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
6000 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
6001 . '`if test -f $(srcdir)/' . $ansfile
6002 . '; then echo $(srcdir)/' . $ansfile
6003 . '; else echo ' . $ansfile . '; fi` '
6004 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
6005 . '| $(ANSI2KNR) > $@'
6006 # If ansi2knr fails then we shouldn't
6007 # create the _.c file
6008 . " || rm -f \$\@\n");
6009 push (@objects, $base . '_.$(OBJEXT)');
6010 push (@objects, $base . '_.lo')
6013 # Explicitly clean the _.c files if they are in a
6014 # subdirectory. (In the current directory they get erased
6015 # by a `rm -f *_.c' rule.)
6016 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
6017 if dirname ($base) ne '.';
6020 # Make all _.o (and _.lo) files depend on ansi2knr.
6021 # Use a sneaky little hack to make it print nicely.
6022 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
6026 sub lang_vala_finish_target ($$)
6028 my ($self, $name) = @_;
6030 my $derived = canonicalize ($name);
6031 my $varname = $derived . '_SOURCES';
6032 my $var = var ($varname);
6036 foreach my $file ($var->value_as_list_recursive)
6038 $output_rules .= "\$(srcdir)/$file: \$(srcdir)/${derived}_vala.stamp\n"
6039 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6040 . "\t\@if test -f \$@; then :; else \\\n"
6041 . "\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n"
6043 if $file =~ s/(.*)\.vala$/$1.c/;
6047 # Add rebuild rules for generated header and vapi files
6048 my $flags = var ($derived . '_VALAFLAGS');
6052 foreach my $flag ($flags->value_as_list_recursive)
6054 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
6055 '--vapi', '--internal-vapi', '--gir')))
6057 my $headerfile = $flag;
6058 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
6059 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6060 . "\t\@if test -f \$@; then :; else \\\n"
6061 . "\t \$(am__cd) \$(srcdir) && \$(MAKE) \$(AM_MAKEFLAGS) ${derived}_vala.stamp; \\\n"
6064 # valac is not used when building from dist tarballs
6065 # distribute the generated files
6066 push_dist_common ($headerfile);
6067 $clean_files{$headerfile} = MAINTAINER_CLEAN;
6073 my $compile = $self->compile;
6075 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
6076 # rule into `${derived}_VALAFLAGS' if it exists.
6077 my $val = "${derived}_VALAFLAGS";
6078 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
6081 # VALAFLAGS is a user variable (per GNU Standards),
6082 # it should not be overridden in the Makefile...
6083 check_user_variables ['VALAFLAGS'];
6085 my $dirname = dirname ($name);
6087 # Only generate C code, do not run C compiler
6090 my $verbose = verbose_flag ('VALAC');
6091 my $silent = silent_flag ();
6094 "${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
6095 "\t${verbose}${compile} \$(${derived}_SOURCES)\n".
6096 "\t${silent}touch \$@\n";
6098 push_dist_common ("${derived}_vala.stamp");
6100 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6103 # Add output rules to invoke valac and create stamp file as a witness
6104 # to handle multiple outputs. This function is called after all source
6105 # file processing is done.
6106 sub lang_vala_finish
6110 foreach my $prog (keys %known_programs)
6112 lang_vala_finish_target ($self, $prog);
6115 while (my ($name) = each %known_libraries)
6117 lang_vala_finish_target ($self, $name);
6121 # The built .c files should be cleaned only on maintainer-clean
6122 # as the .c files are distributed. This function is called for each
6123 # .vala source file.
6124 sub lang_vala_target_hook
6126 my ($self, $aggregate, $output, $input, %transform) = @_;
6128 $clean_files{$output} = MAINTAINER_CLEAN;
6131 # This is a yacc helper which is called whenever we have decided to
6132 # compile a yacc file.
6133 sub lang_yacc_target_hook
6135 my ($self, $aggregate, $output, $input, %transform) = @_;
6137 my $flag = $aggregate . "_YFLAGS";
6138 my $flagvar = var $flag;
6139 my $YFLAGSvar = var 'YFLAGS';
6140 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6141 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6143 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6144 my $header = $output_base . '.h';
6146 # Found a `-d' that applies to the compilation of this file.
6147 # Add a dependency for the generated header file, and arrange
6148 # for that file to be included in the distribution.
6149 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6150 RULE_AUTOMAKE, TRUE,
6153 my $condstr = $cond->subst_string;
6155 "$condstr${header}: $output\n"
6156 # Recover from removal of $header
6157 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
6158 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
6160 # Distribute the generated file, unless its .y source was
6161 # listed in a nodist_ variable. (&handle_source_transform
6162 # will set DIST_SOURCE.)
6163 &push_dist_common ($header)
6164 if $transform{'DIST_SOURCE'};
6166 # If the files are built in the build directory, then we want
6167 # to remove them with `make clean'. If they are in srcdir
6168 # they shouldn't be touched. However, we can't determine this
6169 # statically, and the GNU rules say that yacc/lex output files
6170 # should be removed by maintainer-clean. So that's what we
6172 $clean_files{$header} = MAINTAINER_CLEAN;
6174 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6175 # See the comment above for $HEADER.
6176 $clean_files{$output} = MAINTAINER_CLEAN;
6179 # This is a lex helper which is called whenever we have decided to
6180 # compile a lex file.
6181 sub lang_lex_target_hook
6183 my ($self, $aggregate, $output, $input) = @_;
6184 # If the files are built in the build directory, then we want to
6185 # remove them with `make clean'. If they are in srcdir they
6186 # shouldn't be touched. However, we can't determine this
6187 # statically, and the GNU rules say that yacc/lex output files
6188 # should be removed by maintainer-clean. So that's what we do.
6189 $clean_files{$output} = MAINTAINER_CLEAN;
6192 # This is a helper for both lex and yacc.
6193 sub yacc_lex_finish_helper
6195 return if defined $language_scratch{'lex-yacc-done'};
6196 $language_scratch{'lex-yacc-done'} = 1;
6198 # FIXME: for now, no line number.
6199 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6200 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6203 sub lang_yacc_finish
6205 return if defined $language_scratch{'yacc-done'};
6206 $language_scratch{'yacc-done'} = 1;
6208 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6210 yacc_lex_finish_helper;
6216 return if defined $language_scratch{'lex-done'};
6217 $language_scratch{'lex-done'} = 1;
6219 yacc_lex_finish_helper;
6223 # Given a hash table of linker names, pick the name that has the most
6224 # precedence. This is lame, but something has to have global
6225 # knowledge in order to eliminate the conflict. Add more linkers as
6231 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6233 return $l if defined $linkers{$l};
6238 # Called to indicate that an extension was used.
6242 if (! defined $extension_seen{$ext})
6244 $extension_seen{$ext} = 1;
6248 ++$extension_seen{$ext};
6252 # Return the number of files seen for a given language. Knows about
6253 # special cases we care about. FIXME: this is hideous. We need
6254 # something that involves real language objects. For instance yacc
6255 # and yaccxx could both derive from a common yacc class which would
6256 # know about the strange ylwrap requirement. (Or better yet we could
6257 # just not support legacy yacc!)
6258 sub count_files_for_language
6263 if ($name eq 'yacc' || $name eq 'yaccxx')
6265 @names = ('yacc', 'yaccxx');
6267 elsif ($name eq 'lex' || $name eq 'lexxx')
6269 @names = ('lex', 'lexxx');
6277 foreach $name (@names)
6279 my $lang = $languages{$name};
6280 foreach my $ext (@{$lang->extensions})
6282 $r += $extension_seen{$ext}
6283 if defined $extension_seen{$ext};
6290 # Called to ask whether source files have been seen . If HEADERS is 1,
6291 # headers can be included.
6296 # count all the sources
6298 foreach my $val (values %extension_seen)
6305 $count -= count_files_for_language ('header');
6312 # register_language (%ATTRIBUTE)
6313 # ------------------------------
6314 # Register a single language.
6315 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6316 sub register_language (%)
6322 unless defined $option{'ansi'};
6323 $option{'autodep'} = 'no'
6324 unless defined $option{'autodep'};
6325 $option{'linker'} = ''
6326 unless defined $option{'linker'};
6327 $option{'flags'} = []
6328 unless defined $option{'flags'};
6329 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6330 unless defined $option{'output_extensions'};
6331 $option{'nodist_specific'} = 0
6332 unless defined $option{'nodist_specific'};
6334 my $lang = new Language (%option);
6337 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6338 $languages{$lang->name} = $lang;
6339 my $link = $lang->linker;
6342 if (exists $link_languages{$link})
6344 prog_error ("`$link' has different definitions in "
6345 . $lang->name . " and " . $link_languages{$link}->name)
6346 if $lang->link ne $link_languages{$link}->link;
6350 $link_languages{$link} = $lang;
6354 # Update the pattern of known extensions.
6355 accept_extensions (@{$lang->extensions});
6357 # Upate the $suffix_rule map.
6358 foreach my $suffix (@{$lang->extensions})
6360 foreach my $dest (&{$lang->output_extensions} ($suffix))
6362 register_suffix_rule (INTERNAL, $suffix, $dest);
6367 # derive_suffix ($EXT, $OBJ)
6368 # --------------------------
6369 # This function is used to find a path from a user-specified suffix $EXT
6370 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6371 sub derive_suffix ($$)
6373 my ($source_ext, $obj) = @_;
6375 while (! $extension_map{$source_ext}
6376 && $source_ext ne $obj
6377 && exists $suffix_rules->{$source_ext}
6378 && exists $suffix_rules->{$source_ext}{$obj})
6380 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6387 ################################################################
6389 # Pretty-print something and append to output_rules.
6390 sub pretty_print_rule
6392 $output_rules .= &makefile_wrap (@_);
6396 ################################################################
6399 ## -------------------------------- ##
6400 ## Handling the conditional stack. ##
6401 ## -------------------------------- ##
6405 # make_conditional_string ($NEGATE, $COND)
6406 # ----------------------------------------
6407 sub make_conditional_string ($$)
6409 my ($negate, $cond) = @_;
6410 $cond = "${cond}_TRUE"
6411 unless $cond =~ /^TRUE|FALSE$/;
6412 $cond = Automake::Condition::conditional_negate ($cond)
6418 my %_am_macro_for_cond =
6420 AMDEP => "one of the compiler tests\n"
6421 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6422 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6423 am__fastdepCC => 'AC_PROG_CC',
6424 am__fastdepCCAS => 'AM_PROG_AS',
6425 am__fastdepCXX => 'AC_PROG_CXX',
6426 am__fastdepGCJ => 'AM_PROG_GCJ',
6427 am__fastdepOBJC => 'AC_PROG_OBJC',
6428 am__fastdepUPC => 'AM_PROG_UPC'
6432 # cond_stack_if ($NEGATE, $COND, $WHERE)
6433 # --------------------------------------
6434 sub cond_stack_if ($$$)
6436 my ($negate, $cond, $where) = @_;
6438 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6440 my $text = "$cond does not appear in AM_CONDITIONAL";
6441 my $scope = US_LOCAL;
6442 if (exists $_am_macro_for_cond{$cond})
6444 my $mac = $_am_macro_for_cond{$cond};
6445 $text .= "\n The usual way to define `$cond' is to add ";
6446 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6447 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6448 # These warnings appear in Automake files (depend2.am),
6449 # so there is no need to display them more than once:
6452 error $where, $text, uniq_scope => $scope;
6455 push (@cond_stack, make_conditional_string ($negate, $cond));
6457 return new Automake::Condition (@cond_stack);
6462 # cond_stack_else ($NEGATE, $COND, $WHERE)
6463 # ----------------------------------------
6464 sub cond_stack_else ($$$)
6466 my ($negate, $cond, $where) = @_;
6470 error $where, "else without if";
6474 $cond_stack[$#cond_stack] =
6475 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6477 # If $COND is given, check against it.
6480 $cond = make_conditional_string ($negate, $cond);
6482 error ($where, "else reminder ($negate$cond) incompatible with "
6483 . "current conditional: $cond_stack[$#cond_stack]")
6484 if $cond_stack[$#cond_stack] ne $cond;
6487 return new Automake::Condition (@cond_stack);
6492 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6493 # -----------------------------------------
6494 sub cond_stack_endif ($$$)
6496 my ($negate, $cond, $where) = @_;
6501 error $where, "endif without if";
6505 # If $COND is given, check against it.
6508 $cond = make_conditional_string ($negate, $cond);
6510 error ($where, "endif reminder ($negate$cond) incompatible with "
6511 . "current conditional: $cond_stack[$#cond_stack]")
6512 if $cond_stack[$#cond_stack] ne $cond;
6517 return new Automake::Condition (@cond_stack);
6524 ## ------------------------ ##
6525 ## Handling the variables. ##
6526 ## ------------------------ ##
6529 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6530 # -----------------------------------------------------
6531 # Like define_variable, but the value is a list, and the variable may
6532 # be defined conditionally. The second argument is the condition
6533 # under which the value should be defined; this should be the empty
6534 # string to define the variable unconditionally. The third argument
6535 # is a list holding the values to use for the variable. The value is
6536 # pretty printed in the output file.
6537 sub define_pretty_variable ($$$@)
6539 my ($var, $cond, $where, @value) = @_;
6541 if (! vardef ($var, $cond))
6543 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6544 '', $where, VAR_PRETTY);
6545 rvar ($var)->rdef ($cond)->set_seen;
6550 # define_variable ($VAR, $VALUE, $WHERE)
6551 # --------------------------------------
6552 # Define a new Automake Makefile variable VAR to VALUE, but only if
6553 # not already defined.
6554 sub define_variable ($$$)
6556 my ($var, $value, $where) = @_;
6557 define_pretty_variable ($var, TRUE, $where, $value);
6561 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6562 # ------------------------------------------------------------
6563 # Define the $VAR which content is the list of file names composed of
6564 # a @BASENAME and the $EXTENSION.
6565 sub define_files_variable ($\@$$)
6567 my ($var, $basename, $extension, $where) = @_;
6568 define_variable ($var,
6569 join (' ', map { "$_.$extension" } @$basename),
6574 # Like define_variable, but define a variable to be the configure
6575 # substitution by the same name.
6576 sub define_configure_variable ($)
6580 my $pretty = VAR_ASIS;
6581 my $owner = VAR_CONFIGURE;
6583 # Some variables we do not want to output. For instance it
6584 # would be a bad idea to output `U = @U@` when `@U@` can be
6585 # substituted as `\`.
6586 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6588 # ANSI2KNR is a variable that Automake wants to redefine, so
6589 # it must be owned by Automake. (It is also used as a proof
6590 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6591 # omit the AC_SUBST.)
6592 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6594 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6595 '', $configure_vars{$var}, $pretty);
6599 # define_compiler_variable ($LANG)
6600 # --------------------------------
6601 # Define a compiler variable. We also handle defining the `LT'
6602 # version of the command when using libtool.
6603 sub define_compiler_variable ($)
6607 my ($var, $value) = ($lang->compiler, $lang->compile);
6608 my $libtool_tag = '';
6609 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6610 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6611 &define_variable ($var, $value, INTERNAL);
6612 if (var ('LIBTOOL'))
6614 my $verbose = define_verbose_libtool ();
6615 &define_variable ("LT$var",
6616 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6617 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6620 define_verbose_tagvar ($lang->ccer || 'GEN');
6624 # define_linker_variable ($LANG)
6625 # ------------------------------
6626 # Define linker variables.
6627 sub define_linker_variable ($)
6631 my $libtool_tag = '';
6632 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6633 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6635 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6636 # CCLINK = $(CCLD) blah blah...
6638 if (var ('LIBTOOL'))
6640 my $verbose = define_verbose_libtool ();
6641 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6642 . "\$(LIBTOOLFLAGS) --mode=link ";
6644 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6645 &define_variable ($lang->compiler, $lang);
6646 &define_verbose_tagvar ($lang->lder || 'GEN');
6649 sub define_per_target_linker_variable ($$)
6651 my ($linker, $target) = @_;
6653 # If the user wrote a custom link command, we don't define ours.
6654 return "${target}_LINK"
6655 if set_seen "${target}_LINK";
6657 my $xlink = $linker ? $linker : 'LINK';
6659 my $lang = $link_languages{$xlink};
6660 prog_error "Unknown language for linker variable `$xlink'"
6663 my $link_command = $lang->link;
6666 my $libtool_tag = '';
6667 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6668 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6670 my $verbose = define_verbose_libtool ();
6672 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6673 . "--mode=link " . $link_command;
6676 # Rewrite each occurrence of `AM_$flag' in the link
6677 # command into `${derived}_$flag' if it exists.
6678 my $orig_command = $link_command;
6679 my @flags = (@{$lang->flags}, 'LDFLAGS');
6680 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6681 for my $flag (@flags)
6683 my $val = "${target}_$flag";
6684 $link_command =~ s/\(AM_$flag\)/\($val\)/
6688 # If the computed command is the same as the generic command, use
6689 # the command linker variable.
6690 return ($lang->linker, $lang->lder)
6691 if $link_command eq $orig_command;
6693 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6694 return ("${target}_LINK", $lang->lder);
6697 ################################################################
6699 # &check_trailing_slash ($WHERE, $LINE)
6700 # -------------------------------------
6701 # Return 1 iff $LINE ends with a slash.
6702 # Might modify $LINE.
6703 sub check_trailing_slash ($\$)
6705 my ($where, $line) = @_;
6707 # Ignore `##' lines.
6708 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6710 # Catch and fix a common error.
6711 msg "syntax", $where, "whitespace following trailing backslash"
6712 if $$line =~ s/\\\s+\n$/\\\n/;
6714 return $$line =~ /\\$/;
6718 # &read_am_file ($AMFILE, $WHERE)
6719 # -------------------------------
6720 # Read Makefile.am and set up %contents. Simultaneously copy lines
6721 # from Makefile.am into $output_trailer, or define variables as
6722 # appropriate. NOTE we put rules in the trailer section. We want
6723 # user rules to come after our generated stuff.
6724 sub read_am_file ($$)
6726 my ($amfile, $where) = @_;
6728 my $am_file = new Automake::XFile ("< $amfile");
6729 verb "reading $amfile";
6731 # Keep track of the youngest output dependency.
6732 my $mtime = mtime $amfile;
6733 $output_deps_greatest_timestamp = $mtime
6734 if $mtime > $output_deps_greatest_timestamp;
6740 my $var_look = VAR_ASIS;
6742 use constant IN_VAR_DEF => 0;
6743 use constant IN_RULE_DEF => 1;
6744 use constant IN_COMMENT => 2;
6745 my $prev_state = IN_RULE_DEF;
6747 while ($_ = $am_file->getline)
6749 $where->set ("$amfile:$.");
6750 if (/$IGNORE_PATTERN/o)
6752 # Merely delete comments beginning with two hashes.
6754 elsif (/$WHITE_PATTERN/o)
6756 error $where, "blank line following trailing backslash"
6758 # Stick a single white line before the incoming macro or rule.
6761 # Flush all comments seen so far.
6764 $output_vars .= $comment;
6768 elsif (/$COMMENT_PATTERN/o)
6770 # Stick comments before the incoming macro or rule. Make
6771 # sure a blank line precedes the first block of comments.
6772 $spacing = "\n" unless $blank;
6774 $comment .= $spacing . $_;
6776 $prev_state = IN_COMMENT;
6782 $saw_bk = check_trailing_slash ($where, $_);
6785 # We save the conditional stack on entry, and then check to make
6786 # sure it is the same on exit. This lets us conditionally include
6788 my @saved_cond_stack = @cond_stack;
6789 my $cond = new Automake::Condition (@cond_stack);
6791 my $last_var_name = '';
6792 my $last_var_type = '';
6793 my $last_var_value = '';
6795 # FIXME: shouldn't use $_ in this loop; it is too big.
6798 $where->set ("$amfile:$.");
6800 # Make sure the line is \n-terminated.
6804 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6805 # used by users. @MAINT@ is an anachronism now.
6806 $_ =~ s/\@MAINT\@//g
6807 unless $seen_maint_mode;
6809 my $new_saw_bk = check_trailing_slash ($where, $_);
6811 if (/$IGNORE_PATTERN/o)
6813 # Merely delete comments beginning with two hashes.
6815 # Keep any backslash from the previous line.
6816 $new_saw_bk = $saw_bk;
6818 elsif (/$WHITE_PATTERN/o)
6820 # Stick a single white line before the incoming macro or rule.
6822 error $where, "blank line following trailing backslash"
6825 elsif (/$COMMENT_PATTERN/o)
6827 error $where, "comment following trailing backslash"
6828 if $saw_bk && $prev_state != IN_COMMENT;
6830 # Stick comments before the incoming macro or rule.
6831 $comment .= $spacing . $_;
6833 $prev_state = IN_COMMENT;
6837 if ($prev_state == IN_RULE_DEF)
6839 my $cond = new Automake::Condition @cond_stack;
6840 $output_trailer .= $cond->subst_string;
6841 $output_trailer .= $_;
6843 elsif ($prev_state == IN_COMMENT)
6845 # If the line doesn't start with a `#', add it.
6846 # We do this because a continued comment like
6850 # is not portable. BSD make doesn't honor
6851 # escaped newlines in comments.
6853 $comment .= $spacing . $_;
6855 else # $prev_state == IN_VAR_DEF
6857 $last_var_value .= ' '
6858 unless $last_var_value =~ /\s$/;
6859 $last_var_value .= $_;
6863 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6864 $last_var_type, $cond,
6865 $last_var_value, $comment,
6866 $last_where, VAR_ASIS)
6868 $comment = $spacing = '';
6873 elsif (/$IF_PATTERN/o)
6875 $cond = cond_stack_if ($1, $2, $where);
6877 elsif (/$ELSE_PATTERN/o)
6879 $cond = cond_stack_else ($1, $2, $where);
6881 elsif (/$ENDIF_PATTERN/o)
6883 $cond = cond_stack_endif ($1, $2, $where);
6886 elsif (/$RULE_PATTERN/o)
6889 $prev_state = IN_RULE_DEF;
6891 # For now we have to output all definitions of user rules
6892 # and can't diagnose duplicates (see the comment in
6893 # Automake::Rule::define). So we go on and ignore the return value.
6894 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6896 check_variable_expansions ($_, $where);
6898 $output_trailer .= $comment . $spacing;
6899 my $cond = new Automake::Condition @cond_stack;
6900 $output_trailer .= $cond->subst_string;
6901 $output_trailer .= $_;
6902 $comment = $spacing = '';
6904 elsif (/$ASSIGNMENT_PATTERN/o)
6906 # Found a macro definition.
6907 $prev_state = IN_VAR_DEF;
6908 $last_var_name = $1;
6909 $last_var_type = $2;
6910 $last_var_value = $3;
6911 $last_where = $where->clone;
6912 if ($3 ne '' && substr ($3, -1) eq "\\")
6914 # We preserve the `\' because otherwise the long lines
6915 # that are generated will be truncated by broken
6917 $last_var_value = $3 . "\n";
6919 # Normally we try to output variable definitions in the
6920 # same format they were input. However, POSIX compliant
6921 # systems are not required to support lines longer than
6922 # 2048 bytes (most notably, some sed implementation are
6923 # limited to 4000 bytes, and sed is used by config.status
6924 # to rewrite Makefile.in into Makefile). Moreover nobody
6925 # would really write such long lines by hand since it is
6926 # hardly maintainable. So if a line is longer that 1000
6927 # bytes (an arbitrary limit), assume it has been
6928 # automatically generated by some tools, and flatten the
6929 # variable definition. Otherwise, keep the variable as it
6931 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6935 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6936 $last_var_type, $cond,
6937 $last_var_value, $comment,
6938 $last_where, $var_look)
6940 $comment = $spacing = '';
6941 $var_look = VAR_ASIS;
6944 elsif (/$INCLUDE_PATTERN/o)
6948 if ($path =~ s/^\$\(top_srcdir\)\///)
6950 push (@include_stack, "\$\(top_srcdir\)/$path");
6951 # Distribute any included file.
6953 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6954 # otherwise OSF make will implicitly copy the included
6955 # file in the build tree during `make distdir' to satisfy
6957 # (subdircond2.test and subdircond3.test will fail.)
6958 push_dist_common ("\$\(top_srcdir\)/$path");
6962 $path =~ s/\$\(srcdir\)\///;
6963 push (@include_stack, "\$\(srcdir\)/$path");
6964 # Always use the $(srcdir) prefix in DIST_COMMON,
6965 # otherwise OSF make will implicitly copy the included
6966 # file in the build tree during `make distdir' to satisfy
6968 # (subdircond2.test and subdircond3.test will fail.)
6969 push_dist_common ("\$\(srcdir\)/$path");
6970 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6972 $where->push_context ("`$path' included from here");
6973 &read_am_file ($path, $where);
6974 $where->pop_context;
6978 # This isn't an error; it is probably a continued rule.
6979 # In fact, this is what we assume.
6980 $prev_state = IN_RULE_DEF;
6981 check_variable_expansions ($_, $where);
6982 $output_trailer .= $comment . $spacing;
6983 my $cond = new Automake::Condition @cond_stack;
6984 $output_trailer .= $cond->subst_string;
6985 $output_trailer .= $_;
6986 $comment = $spacing = '';
6987 error $where, "`#' comment at start of rule is unportable"
6988 if $_ =~ /^\t\s*\#/;
6991 $saw_bk = $new_saw_bk;
6992 $_ = $am_file->getline;
6995 $output_trailer .= $comment;
6997 error ($where, "trailing backslash on last line")
7000 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
7001 : "too many conditionals closed in include file"))
7002 if "@saved_cond_stack" ne "@cond_stack";
7006 # define_standard_variables ()
7007 # ----------------------------
7008 # A helper for read_main_am_file which initializes configure variables
7009 # and variables from header-vars.am.
7010 sub define_standard_variables
7012 my $saved_output_vars = $output_vars;
7013 my ($comments, undef, $rules) =
7014 file_contents_internal (1, "$libdir/am/header-vars.am",
7015 new Automake::Location);
7017 foreach my $var (sort keys %configure_vars)
7019 &define_configure_variable ($var);
7022 $output_vars .= $comments . $rules;
7025 # Read main am file.
7026 sub read_main_am_file
7030 # This supports the strange variable tricks we are about to play.
7031 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
7032 if (scalar (variables) > 0);
7034 # Generate copyright header for generated Makefile.in.
7035 # We do discard the output of predefined variables, handled below.
7036 $output_vars = ("# $in_file_name generated by automake "
7037 . $VERSION . " from $am_file_name.\n");
7038 $output_vars .= '# ' . subst ('configure_input') . "\n";
7039 $output_vars .= $gen_copyright;
7041 # We want to predefine as many variables as possible. This lets
7042 # the user set them with `+=' in Makefile.am.
7043 &define_standard_variables;
7045 # Read user file, which might override some of our values.
7046 &read_am_file ($amfile, new Automake::Location);
7051 ################################################################
7054 # &flatten ($STRING)
7055 # ------------------
7056 # Flatten the $STRING and return the result.
7070 # transform_token ($TOKEN, \%PAIRS, $KEY)
7071 # =======================================
7072 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
7073 # (which should be ?KEY? or any of the special %% requests)..
7074 sub transform_token ($$$)
7076 my ($token, $transform, $key) = @_;
7077 my $res = $transform->{$key};
7078 prog_error "Unknown key `$key' in `$token'" unless defined $res;
7083 # transform ($TOKEN, \%PAIRS)
7084 # ===========================
7085 # If ($TOKEN, $VAL) is in %PAIRS:
7086 # - replaces %KEY% with $VAL,
7087 # - enables/disables ?KEY? and ?!KEY?,
7088 # - replaces %?KEY% with TRUE or FALSE.
7089 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
7090 # IFTRUE / IFFALSE, as appropriate.
7093 my ($token, $transform) = @_;
7096 # Must be before the following pattern to exclude the case
7097 # when there is neither IFTRUE nor IFFALSE.
7098 if ($token =~ /^%([\w\-]+)%$/)
7100 return transform_token ($token, $transform, $1);
7102 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7103 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7105 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
7108 elsif ($token =~ /^%\?([\w\-]+)%$/)
7110 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7113 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7115 my $neg = ($1 eq '!') ? 1 : 0;
7116 my $val = transform_token ($token, $transform, $2);
7117 return (!!$val == $neg) ? '##%' : '';
7121 prog_error "Unknown request format: $token";
7127 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7128 # ------------------------------------------
7129 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7131 sub make_paragraphs ($%)
7133 my ($file, %transform) = @_;
7135 # Complete %transform with global options.
7136 # Note that %transform goes last, so it overrides global options.
7137 %transform = ('CYGNUS' => !! option 'cygnus',
7139 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7141 'XZ' => !! option 'dist-xz',
7142 'LZMA' => !! option 'dist-lzma',
7143 'BZIP2' => !! option 'dist-bzip2',
7144 'COMPRESS' => !! option 'dist-tarZ',
7145 'GZIP' => ! option 'no-dist-gzip',
7146 'SHAR' => !! option 'dist-shar',
7147 'ZIP' => !! option 'dist-zip',
7149 'INSTALL-INFO' => ! option 'no-installinfo',
7150 'INSTALL-MAN' => ! option 'no-installman',
7151 'HAVE-MANS' => !! var ('MANS'),
7152 'CK-NEWS' => !! option 'check-news',
7154 'SUBDIRS' => !! var ('SUBDIRS'),
7155 'TOPDIR_P' => $relative_dir eq '.',
7157 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7158 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7159 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7161 'LIBTOOL' => !! var ('LIBTOOL'),
7163 'FIRST' => ! $transformed_files{$file},
7166 $transformed_files{$file} = 1;
7167 $_ = $am_file_cache{$file};
7171 verb "reading $file";
7172 # Swallow the whole file.
7173 my $fc_file = new Automake::XFile "< $file";
7174 my $saved_dollar_slash = $/;
7176 $_ = $fc_file->getline;
7177 $/ = $saved_dollar_slash;
7180 # Remove ##-comments.
7181 # Besides we don't need more than two consecutive new-lines.
7182 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7184 $am_file_cache{$file} = $_;
7187 # Substitute Automake template tokens.
7188 s/(?: % \?? [\w\-]+ %
7189 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7191 )/transform($&, \%transform)/gex;
7192 # transform() may have added some ##%-comments to strip.
7193 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7194 # ####### and do not remove the latter.)
7195 s/^[ \t]*(?:##%)+.*\n//gm;
7197 # Split at unescaped new lines.
7198 my @lines = split (/(?<!\\)\n/, $_);
7201 while (defined ($_ = shift @lines))
7204 # If we are a rule, eat as long as we start with a tab.
7205 if (/$RULE_PATTERN/smo)
7207 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7209 $paragraph .= "\n$_";
7211 unshift (@lines, $_);
7214 # If we are a comments, eat as much comments as you can.
7215 elsif (/$COMMENT_PATTERN/smo)
7217 while (defined ($_ = shift @lines)
7218 && $_ =~ /$COMMENT_PATTERN/smo)
7220 $paragraph .= "\n$_";
7222 unshift (@lines, $_);
7225 push @res, $paragraph;
7233 # ($COMMENT, $VARIABLES, $RULES)
7234 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7235 # -------------------------------------------------------------
7236 # Return contents of a file from $libdir/am, automatically skipping
7237 # macros or rules which are already known. $IS_AM iff the caller is
7238 # reading an Automake file (as opposed to the user's Makefile.am).
7239 sub file_contents_internal ($$$%)
7241 my ($is_am, $file, $where, %transform) = @_;
7243 $where->set ($file);
7245 my $result_vars = '';
7246 my $result_rules = '';
7250 # The following flags are used to track rules spanning across
7251 # multiple paragraphs.
7252 my $is_rule = 0; # 1 if we are processing a rule.
7253 my $discard_rule = 0; # 1 if the current rule should not be output.
7255 # We save the conditional stack on entry, and then check to make
7256 # sure it is the same on exit. This lets us conditionally include
7258 my @saved_cond_stack = @cond_stack;
7259 my $cond = new Automake::Condition (@cond_stack);
7261 foreach (make_paragraphs ($file, %transform))
7263 # FIXME: no line number available.
7264 $where->set ($file);
7267 error $where, "blank line following trailing backslash:\n$_"
7269 error $where, "comment following trailing backslash:\n$_"
7275 # Stick empty line before the incoming macro or rule.
7278 elsif (/$COMMENT_PATTERN/mso)
7281 # Stick comments before the incoming macro or rule.
7285 # Handle inclusion of other files.
7286 elsif (/$INCLUDE_PATTERN/o)
7290 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7291 $where->push_context ("`$file' included from here");
7293 my ($com, $vars, $rules)
7294 = file_contents_internal ($is_am, $file, $where, %transform);
7295 $where->pop_context;
7297 $result_vars .= $vars;
7298 $result_rules .= $rules;
7302 # Handling the conditionals.
7303 elsif (/$IF_PATTERN/o)
7305 $cond = cond_stack_if ($1, $2, $file);
7307 elsif (/$ELSE_PATTERN/o)
7309 $cond = cond_stack_else ($1, $2, $file);
7311 elsif (/$ENDIF_PATTERN/o)
7313 $cond = cond_stack_endif ($1, $2, $file);
7317 elsif (/$RULE_PATTERN/mso)
7321 # Separate relationship from optional actions: the first
7322 # `new-line tab" not preceded by backslash (continuation
7325 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7326 my ($relationship, $actions) = ($1, $2 || '');
7328 # Separate targets from dependencies: the first colon.
7329 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7330 my ($targets, $dependencies) = ($1, $2);
7331 # Remove the escaped new lines.
7332 # I don't know why, but I have to use a tmp $flat_deps.
7333 my $flat_deps = &flatten ($dependencies);
7334 my @deps = split (' ', $flat_deps);
7336 foreach (split (' ', $targets))
7338 # FIXME: 1. We are not robust to people defining several targets
7339 # at once, only some of them being in %dependencies. The
7340 # actions from the targets in %dependencies are usually generated
7341 # from the content of %actions, but if some targets in $targets
7342 # are not in %dependencies the ELSE branch will output
7343 # a rule for all $targets (i.e. the targets which are both
7344 # in %dependencies and $targets will have two rules).
7346 # FIXME: 2. The logic here is not able to output a
7347 # multi-paragraph rule several time (e.g. for each condition
7348 # it is defined for) because it only knows the first paragraph.
7350 # FIXME: 3. We are not robust to people defining a subset
7351 # of a previously defined "multiple-target" rule. E.g.
7352 # `foo:' after `foo bar:'.
7354 # Output only if not in FALSE.
7355 if (defined $dependencies{$_} && $cond != FALSE)
7357 &depend ($_, @deps);
7358 register_action ($_, $actions);
7362 # Free-lance dependency. Output the rule for all the
7363 # targets instead of one by one.
7364 my @undefined_conds =
7365 Automake::Rule::define ($targets, $file,
7366 $is_am ? RULE_AUTOMAKE : RULE_USER,
7368 for my $undefined_cond (@undefined_conds)
7370 my $condparagraph = $paragraph;
7371 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7372 $result_rules .= "$spacing$comment$condparagraph\n";
7374 if (scalar @undefined_conds == 0)
7376 # Remember to discard next paragraphs
7377 # if they belong to this rule.
7378 # (but see also FIXME: #2 above.)
7381 $comment = $spacing = '';
7387 elsif (/$ASSIGNMENT_PATTERN/mso)
7389 my ($var, $type, $val) = ($1, $2, $3);
7390 error $where, "variable `$var' with trailing backslash"
7395 Automake::Variable::define ($var,
7396 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7397 $type, $cond, $val, $comment, $where,
7401 $comment = $spacing = '';
7405 # This isn't an error; it is probably some tokens which
7406 # configure is supposed to replace, such as `@SET-MAKE@',
7407 # or some part of a rule cut by an if/endif.
7408 if (! $cond->false && ! ($is_rule && $discard_rule))
7410 s/^/$cond->subst_string/gme;
7411 $result_rules .= "$spacing$comment$_\n";
7413 $comment = $spacing = '';
7417 error ($where, @cond_stack ?
7418 "unterminated conditionals: @cond_stack" :
7419 "too many conditionals closed in include file")
7420 if "@saved_cond_stack" ne "@cond_stack";
7422 return ($comment, $result_vars, $result_rules);
7427 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7428 # ------------------------------------------------
7429 # Return contents of a file from $libdir/am, automatically skipping
7430 # macros or rules which are already known.
7431 sub file_contents ($$%)
7433 my ($basename, $where, %transform) = @_;
7434 my ($comments, $variables, $rules) =
7435 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7437 return "$comments$variables$rules";
7442 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7443 # -----------------------------------------------------
7444 # Find all variable prefixes that are used for install directories. A
7445 # prefix `zar' qualifies iff:
7447 # * `zardir' is a variable.
7448 # * `zar_PRIMARY' is a variable.
7450 # As a side effect, it looks for misspellings. It is an error to have
7451 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7452 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7453 # of the same name (with "dir" appended) exists. For instance, if the
7454 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7455 # This is to provide a little extra flexibility in those cases which
7457 sub am_primary_prefixes ($$@)
7459 my ($primary, $can_dist, @prefixes) = @_;
7462 my %valid = map { $_ => 0 } @prefixes;
7463 $valid{'EXTRA'} = 0;
7464 foreach my $var (variables $primary)
7466 # Automake is allowed to define variables that look like primaries
7467 # but which aren't. E.g. INSTALL_sh_DATA.
7468 # Autoconf can also define variables like INSTALL_DATA, so
7469 # ignore all configure variables (at least those which are not
7470 # redefined in Makefile.am).
7471 # FIXME: We should make sure that these variables are not
7472 # conditionally defined (or else adjust the condition below).
7473 my $def = $var->def (TRUE);
7474 next if $def && $def->owner != VAR_MAKEFILE;
7476 my $varname = $var->name;
7478 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7480 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7481 if ($dist ne '' && ! $can_dist)
7484 "invalid variable `$varname': `dist' is forbidden");
7486 # Standard directories must be explicitly allowed.
7487 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7490 "`${X}dir' is not a legitimate directory " .
7493 # A not explicitly valid directory is allowed if Xdir is defined.
7494 elsif (! defined $valid{$X} &&
7495 $var->requires_variables ("`$varname' is used", "${X}dir"))
7497 # Nothing to do. Any error message has been output
7498 # by $var->requires_variables.
7502 # Ensure all extended prefixes are actually used.
7503 $valid{"$base$dist$X"} = 1;
7508 prog_error "unexpected variable name: $varname";
7512 # Return only those which are actually defined.
7513 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7517 # Handle `where_HOW' variable magic. Does all lookups, generates
7518 # install code, and possibly generates code to define the primary
7519 # variable. The first argument is the name of the .am file to munge,
7520 # the second argument is the primary variable (e.g. HEADERS), and all
7521 # subsequent arguments are possible installation locations.
7523 # Returns list of [$location, $value] pairs, where
7524 # $value's are the values in all where_HOW variable, and $location
7525 # there associated location (the place here their parent variables were
7528 # FIXME: this should be rewritten to be cleaner. It should be broken
7529 # up into multiple functions.
7531 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7538 my $default_dist = 0;
7541 if ($args[0] eq '-noextra')
7545 elsif ($args[0] eq '-candist')
7549 elsif ($args[0] eq '-defaultdist')
7554 elsif ($args[0] !~ /^-/)
7561 my ($file, $primary, @prefix) = @args;
7563 # Now that configure substitutions are allowed in where_HOW
7564 # variables, it is an error to actually define the primary. We
7565 # allow `JAVA', as it is customarily used to mean the Java
7566 # interpreter. This is but one of several Java hacks. Similarly,
7567 # `PYTHON' is customarily used to mean the Python interpreter.
7568 reject_var $primary, "`$primary' is an anachronism"
7569 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7571 # Get the prefixes which are valid and actually used.
7572 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7574 # If a primary includes a configure substitution, then the EXTRA_
7575 # form is required. Otherwise we can't properly do our job.
7581 foreach my $X (@prefix)
7583 my $nodir_name = $X;
7584 my $one_name = $X . '_' . $primary;
7585 my $one_var = var $one_name;
7587 my $strip_subdir = 1;
7588 # If subdir prefix should be preserved, do so.
7589 if ($nodir_name =~ /^nobase_/)
7592 $nodir_name =~ s/^nobase_//;
7595 # If files should be distributed, do so.
7599 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7600 || (! $default_dist && $nodir_name =~ /^dist_/));
7601 $nodir_name =~ s/^(dist|nodist)_//;
7605 # Use the location of the currently processed variable.
7606 # We are not processing a particular condition, so pick the first
7608 my $tmpcond = $one_var->conditions->one_cond;
7609 my $where = $one_var->rdef ($tmpcond)->location->clone;
7611 # Append actual contents of where_PRIMARY variable to
7612 # @result, skipping @substitutions@.
7613 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7615 my ($loc, $value) = @$locvals;
7616 # Skip configure substitutions.
7617 if ($value =~ /^\@.*\@$/)
7619 if ($nodir_name eq 'EXTRA')
7622 "`$one_name' contains configure substitution, "
7625 # Check here to make sure variables defined in
7626 # configure.ac do not imply that EXTRA_PRIMARY
7628 elsif (! defined $configure_vars{$one_name})
7630 $require_extra = $one_name
7636 # Strip any $(EXEEXT) suffix the user might have added, or this
7637 # will confuse &handle_source_transform and &check_canonical_spelling.
7638 # We'll add $(EXEEXT) back later anyway.
7639 # Do it here rather than in handle_programs so the uniquifying at the
7640 # end of this function works.
7641 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7642 if $primary eq 'PROGRAMS';
7644 push (@result, $locvals);
7647 # A blatant hack: we rewrite each _PROGRAMS primary to include
7649 append_exeext { 1 } $one_name
7650 if $primary eq 'PROGRAMS';
7651 # "EXTRA" shouldn't be used when generating clean targets,
7652 # all, or install targets. We used to warn if EXTRA_FOO was
7653 # defined uselessly, but this was annoying.
7655 if $nodir_name eq 'EXTRA';
7657 if ($nodir_name eq 'check')
7659 push (@check, '$(' . $one_name . ')');
7663 push (@used, '$(' . $one_name . ')');
7666 # Is this to be installed?
7667 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7669 # If so, with install-exec? (or install-data?).
7670 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7672 my $check_options_p = $install_p && !! option 'std-options';
7674 # Use the location of the currently processed variable as context.
7675 $where->push_context ("while processing `$one_name'");
7677 # The variable containing all files to distribute.
7678 my $distvar = "\$($one_name)";
7679 $distvar = shadow_unconditionally ($one_name, $where)
7680 if ($dist_p && $one_var->has_conditional_contents);
7682 # Singular form of $PRIMARY.
7683 (my $one_primary = $primary) =~ s/S$//;
7684 $output_rules .= &file_contents ($file, $where,
7685 PRIMARY => $primary,
7686 ONE_PRIMARY => $one_primary,
7688 NDIR => $nodir_name,
7689 BASE => $strip_subdir,
7692 INSTALL => $install_p,
7694 DISTVAR => $distvar,
7695 'CK-OPTS' => $check_options_p);
7698 # The JAVA variable is used as the name of the Java interpreter.
7699 # The PYTHON variable is used as the name of the Python interpreter.
7700 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7703 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7704 $output_vars .= "\n";
7707 err_var ($require_extra,
7708 "`$require_extra' contains configure substitution,\n"
7709 . "but `EXTRA_$primary' not defined")
7710 if ($require_extra && ! var ('EXTRA_' . $primary));
7712 # Push here because PRIMARY might be configure time determined.
7713 push (@all, '$(' . $primary . ')')
7714 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7716 # Make the result unique. This lets the user use conditionals in
7717 # a natural way, but still lets us program lazily -- we don't have
7718 # to worry about handling a particular object more than once.
7719 # We will keep only one location per object.
7721 for my $pair (@result)
7723 my ($loc, $val) = @$pair;
7724 $result{$val} = $loc;
7726 my @l = sort keys %result;
7727 return map { [$result{$_}->clone, $_] } @l;
7731 ################################################################
7733 # Each key in this hash is the name of a directory holding a
7734 # Makefile.in. These variables are local to `is_make_dir'.
7736 my $make_dirs_set = 0;
7741 if (! $make_dirs_set)
7743 foreach my $iter (@configure_input_files)
7745 $make_dirs{dirname ($iter)} = 1;
7747 # We also want to notice Makefile.in's.
7748 foreach my $iter (@other_input_files)
7750 if ($iter =~ /Makefile\.in$/)
7752 $make_dirs{dirname ($iter)} = 1;
7757 return defined $make_dirs{$dir};
7760 ################################################################
7762 # Find the aux dir. This should match the algorithm used by
7763 # ./configure. (See the Autoconf documentation for for
7764 # AC_CONFIG_AUX_DIR.)
7765 sub locate_aux_dir ()
7767 if (! $config_aux_dir_set_in_configure_ac)
7769 # The default auxiliary directory is the first
7770 # of ., .., or ../.. that contains install-sh.
7771 # Assume . if install-sh doesn't exist yet.
7772 for my $dir (qw (. .. ../..))
7774 if (-f "$dir/install-sh")
7776 $config_aux_dir = $dir;
7780 $config_aux_dir = '.' unless $config_aux_dir;
7782 # Avoid unsightly '/.'s.
7783 $am_config_aux_dir =
7784 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7785 $am_config_aux_dir =~ s,/*$,,;
7789 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7790 # --------------------------------------------------
7791 # See if we want to push this file onto dist_common. This function
7792 # encodes the rules for deciding when to do so.
7793 sub maybe_push_required_file
7795 my ($dir, $file, $fullfile) = @_;
7797 if ($dir eq $relative_dir)
7799 push_dist_common ($file);
7802 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7804 # If we are doing the topmost directory, and the file is in a
7805 # subdir which does not have a Makefile, then we distribute it
7808 # If a required file is above the source tree, it is important
7809 # to prefix it with `$(srcdir)' so that no VPATH search is
7810 # performed. Otherwise problems occur with Make implementations
7811 # that rewrite and simplify rules whose dependencies are found in a
7812 # VPATH location. Here is an example with OSF1/Tru64 Make.
7824 # Dependency `../a' was found in `sub/../a', but this make
7825 # implementation simplified it as `a'. (Note that the sub/
7826 # directory does not even exist.)
7828 # This kind of VPATH rewriting seems hard to cancel. The
7829 # distdir.am hack against VPATH rewriting works only when no
7830 # simplification is done, i.e., for dependencies which are in
7831 # subdirectories, not in enclosing directories. Hence, in
7832 # the latter case we use a full path to make sure no VPATH
7834 $fullfile = '$(srcdir)/' . $fullfile
7835 if $dir =~ m,^\.\.(?:$|/),;
7837 push_dist_common ($fullfile);
7844 # If a file name appears as a key in this hash, then it has already
7845 # been checked for. This allows us not to report the same error more
7847 my %required_file_not_found = ();
7849 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7850 # --------------------------------------------------------------
7851 # Verify that the file must exist in $DIRECTORY, or install it.
7852 # $MYSTRICT is the strictness level at which this file becomes required.
7853 sub require_file_internal ($$$@)
7855 my ($where, $mystrict, $dir, @files) = @_;
7857 foreach my $file (@files)
7859 my $fullfile = "$dir/$file";
7861 my $dangling_sym = 0;
7863 if (-l $fullfile && ! -f $fullfile)
7867 elsif (dir_has_case_matching_file ($dir, $file))
7870 maybe_push_required_file ($dir, $file, $fullfile);
7873 # `--force-missing' only has an effect if `--add-missing' is
7875 if ($found_it && (! $add_missing || ! $force_missing))
7881 # If we've already looked for it, we're done. You might
7882 # wonder why we don't do this before searching for the
7883 # file. If we do that, then something like
7884 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7888 next if defined $required_file_not_found{$fullfile};
7889 $required_file_not_found{$fullfile} = 1;
7892 if ($strictness >= $mystrict)
7894 if ($dangling_sym && $add_missing)
7903 # Only install missing files according to our desired
7905 my $message = "required file `$fullfile' not found";
7908 if (-f "$libdir/$file")
7912 # Install the missing file. Symlink if we
7913 # can, copy if we must. Note: delete the file
7914 # first, in case it is a dangling symlink.
7915 $message = "installing `$fullfile'";
7917 # The license file should not be volatile.
7918 if ($file eq "COPYING")
7920 $message .= " using GNU General Public License v3 file";
7921 $trailer2 = "\n Consider adding the COPYING file"
7922 . " to the version control system"
7923 . "\n for your code, to avoid questions"
7924 . " about which license your project uses.";
7927 # Windows Perl will hang if we try to delete a
7928 # file that doesn't exist.
7929 unlink ($fullfile) if -f $fullfile;
7930 if ($symlink_exists && ! $copy_missing)
7932 if (! symlink ("$libdir/$file", $fullfile)
7936 $trailer = "; error while making link: $!";
7939 elsif (system ('cp', "$libdir/$file", $fullfile))
7942 $trailer = "\n error while copying";
7944 set_dir_cache_file ($dir, $file);
7947 if (! maybe_push_required_file (dirname ($fullfile),
7950 if (! $found_it && ! $automake_will_process_aux_dir)
7952 # We have added the file but could not push it
7953 # into DIST_COMMON, probably because this is
7954 # an auxiliary file and we are not processing
7955 # the top level Makefile. Furthermore Automake
7956 # hasn't been asked to create the Makefile.in
7957 # that distributes the aux dir files.
7958 error ($where, 'Please make a full run of automake'
7959 . " so $fullfile gets distributed.");
7965 $trailer = "\n `automake --add-missing' can install `$file'"
7966 if -f "$libdir/$file";
7969 # If --force-missing was specified, and we have
7970 # actually found the file, then do nothing.
7972 if $found_it && $force_missing;
7974 # If we couldn't install the file, but it is a target in
7975 # the Makefile, don't print anything. This allows files
7976 # like README, AUTHORS, or THANKS to be generated.
7978 if !$suppress && rule $file;
7980 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7986 # &require_file ($WHERE, $MYSTRICT, @FILES)
7987 # -----------------------------------------
7988 sub require_file ($$@)
7990 my ($where, $mystrict, @files) = @_;
7991 require_file_internal ($where, $mystrict, $relative_dir, @files);
7994 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7995 # -----------------------------------------------------------
7996 sub require_file_with_macro ($$$@)
7998 my ($cond, $macro, $mystrict, @files) = @_;
7999 $macro = rvar ($macro) unless ref $macro;
8000 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8003 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8004 # ----------------------------------------------------------------
8005 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
8006 # must be in that directory. Otherwise expect it in the current directory.
8007 sub require_libsource_with_macro ($$$@)
8009 my ($cond, $macro, $mystrict, @files) = @_;
8010 $macro = rvar ($macro) unless ref $macro;
8011 if ($config_libobj_dir)
8013 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
8014 $config_libobj_dir, @files);
8018 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8022 # Queue to push require_conf_file requirements to.
8023 my $required_conf_file_queue;
8025 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
8026 # -------------------------------------------------------------------------
8027 sub queue_required_conf_file ($$$$@)
8029 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
8033 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
8037 @serial_loc = (QUEUE_STRING, $where);
8039 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
8042 # &require_queued_conf_file ($QUEUE)
8043 # ----------------------------------
8044 sub require_queued_conf_file ($)
8048 my $dir = $queue->dequeue ();
8049 my $loc_key = $queue->dequeue ();
8050 if ($loc_key eq QUEUE_LOCATION)
8052 $where = Automake::Location::deserialize ($queue);
8054 elsif ($loc_key eq QUEUE_STRING)
8056 $where = $queue->dequeue ();
8060 prog_error "unexpected key $loc_key";
8062 my $mystrict = $queue->dequeue ();
8063 my $nfiles = $queue->dequeue ();
8065 push @files, $queue->dequeue ()
8066 foreach (1 .. $nfiles);
8068 # Dequeuing happens outside of per-makefile context, so we have to
8069 # set the variables used by require_file_internal and the functions
8071 $relative_dir = $dir;
8072 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8075 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
8076 # ----------------------------------------------
8077 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
8078 # worker threads may queue up the action to be serialized by the master.
8080 # FIXME: this seriously relies on the semantics of require_file_internal
8081 # and maybe_push_required_file, in that we exploit the fact that only the
8082 # contents of the last handled output file may be impacted (which in turn
8083 # is dealt with by the master thread).
8084 sub require_conf_file ($$@)
8086 my ($where, $mystrict, @files) = @_;
8087 if (defined $required_conf_file_queue)
8089 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
8090 $relative_dir, $where, $mystrict, @files);
8094 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8099 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8100 # ----------------------------------------------------------------
8101 sub require_conf_file_with_macro ($$$@)
8103 my ($cond, $macro, $mystrict, @files) = @_;
8104 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8108 ################################################################
8110 # &require_build_directory ($DIRECTORY)
8111 # -------------------------------------
8112 # Emit rules to create $DIRECTORY if needed, and return
8113 # the file that any target requiring this directory should be made
8115 # We don't want to emit the rule twice, and want to reuse it
8116 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8117 sub require_build_directory ($)
8119 my $directory = shift;
8121 return $directory_map{$directory} if exists $directory_map{$directory};
8123 my $cdir = File::Spec->canonpath ($directory);
8125 if (exists $directory_map{$cdir})
8127 my $stamp = $directory_map{$cdir};
8128 $directory_map{$directory} = $stamp;
8132 my $dirstamp = "$cdir/\$(am__dirstamp)";
8134 $directory_map{$directory} = $dirstamp;
8135 $directory_map{$cdir} = $dirstamp;
8137 # Set a variable for the dirstamp basename.
8138 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8139 '$(am__leading_dot)dirstamp');
8141 # Directory must be removed by `make distclean'.
8142 $clean_files{$dirstamp} = DIST_CLEAN;
8144 $output_rules .= ("$dirstamp:\n"
8145 . "\t\@\$(MKDIR_P) $directory\n"
8146 . "\t\@: > $dirstamp\n");
8151 # &require_build_directory_maybe ($FILE)
8152 # --------------------------------------
8153 # If $FILE lies in a subdirectory, emit a rule to create this
8154 # directory and return the file that $FILE should be made
8155 # dependent upon. Otherwise, just return the empty string.
8156 sub require_build_directory_maybe ($)
8159 my $directory = dirname ($file);
8161 if ($directory ne '.')
8163 return require_build_directory ($directory);
8171 ################################################################
8173 # Push a list of files onto dist_common.
8174 sub push_dist_common
8176 prog_error "push_dist_common run after handle_dist"
8177 if $handle_dist_run;
8178 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8179 '', INTERNAL, VAR_PRETTY);
8183 ################################################################
8185 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8186 # ----------------------------------------------
8187 # Generate a Makefile.in given the name of the corresponding Makefile and
8188 # the name of the file output by config.status.
8189 sub generate_makefile ($$)
8191 my ($makefile_am, $makefile_in) = @_;
8193 # Reset all the Makefile.am related variables.
8194 initialize_per_input;
8196 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8197 # warnings for this file. So hold any warning issued before
8198 # we have processed AUTOMAKE_OPTIONS.
8199 buffer_messages ('warning');
8201 # Name of input file ("Makefile.am") and output file
8202 # ("Makefile.in"). These have no directory components.
8203 $am_file_name = basename ($makefile_am);
8204 $in_file_name = basename ($makefile_in);
8206 # $OUTPUT is encoded. If it contains a ":" then the first element
8207 # is the real output file, and all remaining elements are input
8208 # files. We don't scan or otherwise deal with these input files,
8209 # other than to mark them as dependencies. See
8210 # &scan_autoconf_files for details.
8211 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8213 $relative_dir = dirname ($makefile);
8214 $am_relative_dir = dirname ($makefile_am);
8215 $topsrcdir = backname ($relative_dir);
8217 read_main_am_file ($makefile_am);
8220 # Process buffered warnings.
8222 # Fatal error. Just return, so we can continue with next file.
8225 # Process buffered warnings.
8228 # There are a few install-related variables that you should not define.
8229 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8234 my $def = $v->def (TRUE);
8235 prog_error "$var not defined in condition TRUE"
8237 reject_var $var, "`$var' should not be defined"
8238 if $def->owner != VAR_AUTOMAKE;
8242 # Catch some obsolete variables.
8243 msg_var ('obsolete', 'INCLUDES',
8244 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8245 if var ('INCLUDES');
8247 # Must do this after reading .am file.
8248 define_variable ('subdir', $relative_dir, INTERNAL);
8250 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8251 # recursive rules are enabled.
8252 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8253 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8255 # Check first, because we might modify some state.
8257 check_gnu_standards;
8258 check_gnits_standards;
8260 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8267 # These must be run after all the sources are scanned. They
8268 # use variables defined by &handle_libraries, &handle_ltlibraries,
8269 # or &handle_programs.
8274 # Variables used by distdir.am and tags.am.
8275 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8276 if (! option 'no-dist')
8278 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8291 handle_minor_options;
8292 # Must come after handle_programs so that %known_programs is up-to-date.
8295 # This must come after most other rules.
8299 do_check_merge_target;
8300 handle_all ($makefile);
8303 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8305 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8307 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8309 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8313 handle_clean ($makefile);
8314 handle_factored_dependencies;
8316 # Comes last, because all the above procedures may have
8317 # defined or overridden variables.
8318 $output_vars .= output_variables;
8322 my ($out_file) = $output_directory . '/' . $makefile_in;
8324 if ($exit_code != 0)
8326 verb "not writing $out_file because of earlier errors";
8330 if (! -d ($output_directory . '/' . $am_relative_dir))
8332 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8335 # We make sure that `all:' is the first target.
8337 "$output_vars$output_all$output_header$output_rules$output_trailer";
8339 # Decide whether we must update the output file or not.
8340 # We have to update in the following situations.
8341 # * $force_generation is set.
8342 # * any of the output dependencies is younger than the output
8343 # * the contents of the output is different (this can happen
8344 # if the project has been populated with a file listed in
8345 # @common_files since the last run).
8346 # Output's dependencies are split in two sets:
8347 # * dependencies which are also configure dependencies
8348 # These do not change between each Makefile.am
8349 # * other dependencies, specific to the Makefile.am being processed
8350 # (such as the Makefile.am itself, or any Makefile fragment
8352 my $timestamp = mtime $out_file;
8353 if (! $force_generation
8354 && $configure_deps_greatest_timestamp < $timestamp
8355 && $output_deps_greatest_timestamp < $timestamp
8356 && $output eq contents ($out_file))
8358 verb "$out_file unchanged";
8359 # No need to update.
8366 or fatal "cannot remove $out_file: $!\n";
8369 my $gm_file = new Automake::XFile "> $out_file";
8370 verb "creating $out_file";
8371 print $gm_file $output;
8374 ################################################################
8379 ################################################################
8381 # Helper function for usage().
8382 sub print_autodist_files (@)
8384 my @lcomm = sort (&uniq (@_));
8387 format USAGE_FORMAT =
8388 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8389 $four[0], $four[1], $four[2], $four[3]
8391 local $~ = "USAGE_FORMAT";
8394 my $rows = int(@lcomm / $cols);
8395 my $rest = @lcomm % $cols;
8406 for (my $y = 0; $y < $rows; $y++)
8408 @four = ("", "", "", "");
8409 for (my $x = 0; $x < $cols; $x++)
8411 last if $y + 1 == $rows && $x == $rest;
8413 my $idx = (($x > $rest)
8414 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8418 $four[$x] = $lcomm[$idx];
8425 # Print usage information.
8428 print "Usage: $0 [OPTION] ... [Makefile]...
8430 Generate Makefile.in for configure from Makefile.am.
8433 --help print this help, then exit
8434 --version print version number, then exit
8435 -v, --verbose verbosely list files processed
8436 --no-force only update Makefile.in's that are out of date
8437 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8439 Dependency tracking:
8440 -i, --ignore-deps disable dependency tracking code
8441 --include-deps enable dependency tracking code
8444 --cygnus assume program is part of Cygnus-style tree
8445 --foreign set strictness to foreign
8446 --gnits set strictness to gnits
8447 --gnu set strictness to gnu
8450 -a, --add-missing add missing standard files to package
8451 --libdir=DIR directory storing library files
8452 -c, --copy with -a, copy missing files (default is symlink)
8453 -f, --force-missing force update of standard files
8456 Automake::ChannelDefs::usage;
8458 print "\nFiles automatically distributed if found " .
8460 print_autodist_files @common_files;
8461 print "\nFiles automatically distributed if found " .
8462 "(under certain conditions):\n";
8463 print_autodist_files @common_sometimes;
8466 Report bugs to <@PACKAGE_BUGREPORT@>.
8467 GNU Automake home page: <@PACKAGE_URL@>.
8468 General help using GNU software: <http://www.gnu.org/gethelp/>.
8471 # --help always returns 0 per GNU standards.
8478 # Print version information
8482 automake (GNU $PACKAGE) $VERSION
8483 Copyright (C) 2011 Free Software Foundation, Inc.
8484 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8485 This is free software: you are free to change and redistribute it.
8486 There is NO WARRANTY, to the extent permitted by law.
8488 Written by Tom Tromey <tromey\@redhat.com>
8489 and Alexandre Duret-Lutz <adl\@gnu.org>.
8491 # --version always returns 0 per GNU standards.
8495 ################################################################
8497 # Parse command line.
8498 sub parse_arguments ()
8501 set_strictness ('gnu');
8503 my $cli_where = new Automake::Location;
8506 'libdir=s' => \$libdir,
8507 'gnu' => sub { set_strictness ('gnu'); },
8508 'gnits' => sub { set_strictness ('gnits'); },
8509 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8510 'foreign' => sub { set_strictness ('foreign'); },
8511 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8512 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8514 'no-force' => sub { $force_generation = 0; },
8515 'f|force-missing' => \$force_missing,
8516 'o|output-dir=s' => \$output_directory,
8517 'a|add-missing' => \$add_missing,
8518 'c|copy' => \$copy_missing,
8519 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8520 'W|warnings=s' => \&parse_warnings,
8521 # These long options (--Werror and --Wno-error) for backward
8522 # compatibility. Use -Werror and -Wno-error today.
8523 'Werror' => sub { parse_warnings 'W', 'error'; },
8524 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8527 Getopt::Long::config ("bundling", "pass_through");
8529 # See if --version or --help is used. We want to process these before
8530 # anything else because the GNU Coding Standards require us to
8531 # `exit 0' after processing these options, and we can't guarantee this
8532 # if we treat other options first. (Handling other options first
8533 # could produce error diagnostics, and in this condition it is
8534 # confusing if Automake does `exit 0'.)
8535 my %cli_options_1st_pass =
8537 'version' => \&version,
8539 # Recognize all other options (and their arguments) but do nothing.
8540 map { $_ => sub {} } (keys %cli_options)
8542 my @ARGV_backup = @ARGV;
8543 Getopt::Long::GetOptions %cli_options_1st_pass
8545 @ARGV = @ARGV_backup;
8547 # Now *really* process the options. This time we know that --help
8548 # and --version are not present, but we specify them nonetheless so
8549 # that ambiguous abbreviation are diagnosed.
8550 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8553 if (defined $output_directory)
8555 msg 'obsolete', "`--output-dir' is deprecated\n";
8559 # In the next release we'll remove this entirely.
8560 $output_directory = '.';
8563 return unless @ARGV;
8565 if ($ARGV[0] =~ /^-./)
8568 for my $k (keys %cli_options)
8570 if ($k =~ /(.*)=s$/)
8572 map { $argopts{(length ($_) == 1)
8573 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
8576 if ($ARGV[0] eq '--')
8580 elsif (exists $argopts{$ARGV[0]})
8582 fatal ("option `$ARGV[0]' requires an argument\n"
8583 . "Try `$0 --help' for more information.");
8587 fatal ("unrecognized option `$ARGV[0]'.\n"
8588 . "Try `$0 --help' for more information.");
8593 foreach my $arg (@ARGV)
8595 fatal ("empty argument\nTry `$0 --help' for more information.")
8598 # Handle $local:$input syntax.
8599 my ($local, @rest) = split (/:/, $arg);
8600 @rest = ("$local.in",) unless @rest;
8601 my $input = locate_am @rest;
8604 push @input_files, $input;
8605 $output_files{$input} = join (':', ($local, @rest));
8609 error "no Automake input file found for `$arg'";
8613 fatal "no input file found among supplied arguments"
8614 if $errspec && ! @input_files;
8618 # handle_makefile ($MAKEFILE_IN)
8619 # ------------------------------
8620 # Deal with $MAKEFILE_IN.
8621 sub handle_makefile ($)
8624 ($am_file = $file) =~ s/\.in$//;
8625 if (! -f ($am_file . '.am'))
8627 error "`$am_file.am' does not exist";
8631 # Any warning setting now local to this Makefile.am.
8634 generate_makefile ($am_file . '.am', $file);
8636 # Back out any warning setting.
8641 # handle_makefiles_serial ()
8642 # --------------------------
8643 # Deal with all makefiles, without threads.
8644 sub handle_makefiles_serial ()
8646 foreach my $file (@input_files)
8648 handle_makefile ($file);
8652 # get_number_of_threads ()
8653 # ------------------------
8654 # Logic for deciding how many worker threads to use.
8655 sub get_number_of_threads
8657 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8660 unless $nthreads =~ /^[0-9]+$/;
8662 # It doesn't make sense to use more threads than makefiles,
8663 my $max_threads = @input_files;
8665 # but a single worker thread is helpful for exposing bugs.
8666 if ($automake_will_process_aux_dir && $max_threads > 1)
8670 if ($nthreads > $max_threads)
8672 $nthreads = $max_threads;
8677 # handle_makefiles_threaded ($NTHREADS)
8678 # -------------------------------------
8679 # Deal with all makefiles, using threads. The general strategy is to
8680 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8681 # worker threads push back everything that needs serialization:
8682 # * warning and (normal) error messages, for stable stderr output
8683 # order and content (avoiding duplicates, for example),
8684 # * races when installing aux files (and respective messages),
8685 # * races when collecting aux files for distribution.
8687 # The latter requires that the makefile that deals with the aux dir
8688 # files be handled last, done by the master thread.
8689 sub handle_makefiles_threaded ($)
8691 my ($nthreads) = @_;
8693 my @queued_input_files = @input_files;
8694 my $last_input_file = undef;
8695 if ($automake_will_process_aux_dir)
8697 $last_input_file = pop @queued_input_files;
8700 # The file queue distributes all makefiles, the message queues
8701 # collect all serializations needed for respective files.
8702 my $file_queue = Thread::Queue->new;
8704 foreach my $file (@queued_input_files)
8706 $msg_queues{$file} = Thread::Queue->new;
8709 verb "spawning $nthreads worker threads";
8710 my @threads = (1 .. $nthreads);
8711 foreach my $t (@threads)
8713 $t = threads->new (sub
8715 while (my $file = $file_queue->dequeue)
8717 verb "handling $file";
8718 my $queue = $msg_queues{$file};
8719 setup_channel_queue ($queue, QUEUE_MESSAGE);
8720 $required_conf_file_queue = $queue;
8721 handle_makefile ($file);
8722 $queue->enqueue (undef);
8723 setup_channel_queue (undef, undef);
8724 $required_conf_file_queue = undef;
8730 # Queue all normal makefiles.
8731 verb "queuing " . @queued_input_files . " input files";
8732 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8734 # Collect and process serializations.
8735 foreach my $file (@queued_input_files)
8737 verb "dequeuing messages for " . $file;
8738 reset_local_duplicates ();
8739 my $queue = $msg_queues{$file};
8740 while (my $key = $queue->dequeue)
8742 if ($key eq QUEUE_MESSAGE)
8744 pop_channel_queue ($queue);
8746 elsif ($key eq QUEUE_CONF_FILE)
8748 require_queued_conf_file ($queue);
8752 prog_error "unexpected key $key";
8757 foreach my $t (@threads)
8759 my @exit_thread = $t->join;
8760 $exit_code = $exit_thread[0]
8761 if ($exit_thread[0] > $exit_code);
8764 # The master processes the last file.
8765 if ($automake_will_process_aux_dir)
8767 verb "processing last input file";
8768 handle_makefile ($last_input_file);
8772 ################################################################
8774 # Parse the WARNINGS environment variable.
8777 # Parse command line.
8780 $configure_ac = require_configure_ac;
8782 # Do configure.ac scan only once.
8783 scan_autoconf_files;
8788 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8789 if -f 'Makefile.am';
8790 fatal ("no `Makefile.am' found for any configure output$msg");
8793 my $nthreads = get_number_of_threads ();
8795 if ($perl_threads && $nthreads >= 1)
8797 handle_makefiles_threaded ($nthreads);
8801 handle_makefiles_serial ();
8807 ### Setup "GNU" style for perl-mode and cperl-mode.
8809 ## perl-indent-level: 2
8810 ## perl-continued-statement-offset: 2
8811 ## perl-continued-brace-offset: 0
8812 ## perl-brace-offset: 0
8813 ## perl-brace-imaginary-offset: 0
8814 ## perl-label-offset: -2
8815 ## cperl-indent-level: 2
8816 ## cperl-brace-offset: 0
8817 ## cperl-continued-brace-offset: 0
8818 ## cperl-label-offset: -2
8819 ## cperl-extra-newline-before-brace: t
8820 ## cperl-merge-trailing-else: nil
8821 ## cperl-continued-statement-offset: 2