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, 2012 Free
11 # Software Foundation, Inc.
13 # This program is free software; you can redistribute it and/or modify
14 # it under the terms of the GNU General Public License as published by
15 # the Free Software Foundation; either version 2, or (at your option)
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 # For typical `make's, `configure' replaces AM_V (inside @@) with $(V)
1168 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1169 # For strict POSIX 2008 `make's, it replaces them with 0 or 1 instead.
1170 # See AM_SILENT_RULES in m4/silent.m4.
1171 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1172 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1173 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1174 '', INTERNAL, VAR_ASIS)
1175 if (! vardef ($silent_var, TRUE));
1179 # Above should not be needed in the general automake code.
1181 # verbose_flag (NAME)
1182 # -------------------
1183 # Contents of %VERBOSE%: variable to expand before rule command.
1184 sub verbose_flag ($)
1187 return '$(' . verbose_var ($name) . ')'
1188 if (option 'silent-rules');
1192 sub verbose_nodep_flag ($)
1195 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1196 if (option 'silent-rules');
1202 # Contents of %SILENT%: variable to expand to `@' when silent.
1205 return verbose_flag ('at');
1208 # define_verbose_tagvar (NAME)
1209 # ----------------------------
1210 # Engage the needed `silent-rules' machinery for tag NAME.
1211 sub define_verbose_tagvar ($)
1214 if (option 'silent-rules')
1216 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1217 define_verbose_var ('at', '@');
1221 # define_verbose_libtool
1222 # ----------------------
1223 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1224 sub define_verbose_libtool ()
1226 define_verbose_var ('lt', '--silent');
1227 return verbose_flag ('lt');
1231 ################################################################
1234 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1237 my $var = var ('AUTOMAKE_OPTIONS');
1240 if ($var->has_conditional_contents)
1242 msg_var ('unsupported', $var,
1243 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1245 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1248 my ($loc, $value) = @$locvals;
1249 return 1 if (process_option_list ($loc, $value))
1253 # Override portability-recursive warning.
1254 switch_warning ('no-portability-recursive')
1255 if option 'silent-rules';
1257 if ($strictness == GNITS)
1259 set_option ('readme-alpha', INTERNAL);
1260 set_option ('std-options', INTERNAL);
1261 set_option ('check-news', INTERNAL);
1267 # shadow_unconditionally ($varname, $where)
1268 # -----------------------------------------
1269 # Return a $(variable) that contains all possible values
1270 # $varname can take.
1271 # If the VAR wasn't defined conditionally, return $(VAR).
1272 # Otherwise we create an am__VAR_DIST variable which contains
1273 # all possible values, and return $(am__VAR_DIST).
1274 sub shadow_unconditionally ($$)
1276 my ($varname, $where) = @_;
1277 my $var = var $varname;
1278 if ($var->has_conditional_contents)
1280 $varname = "am__${varname}_DIST";
1281 my @files = uniq ($var->value_as_list_recursive);
1282 define_pretty_variable ($varname, TRUE, $where, @files);
1284 return "\$($varname)"
1287 # get_object_extension ($EXTENSION)
1288 # ---------------------------------
1289 # Prefix $EXTENSION with $U if ansi2knr is in use.
1290 sub get_object_extension ($)
1292 my ($extension) = @_;
1294 # Check for automatic de-ANSI-fication.
1295 $extension = '$U' . $extension
1296 if option 'ansi2knr';
1298 $get_object_extension_was_run = 1;
1303 # check_user_variables (@LIST)
1304 # ----------------------------
1305 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1307 sub check_user_variables (@)
1309 my @dont_override = @_;
1310 foreach my $flag (@dont_override)
1312 my $var = var $flag;
1315 for my $cond ($var->conditions->conds)
1317 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1319 msg_cond_var ('gnu', $cond, $flag,
1320 "`$flag' is a user variable, "
1321 . "you should not override it;\n"
1322 . "use `AM_$flag' instead.");
1329 # Call finish function for each language that was used.
1330 sub handle_languages
1332 if (! option 'no-dependencies')
1334 # Include auto-dep code. Don't include it if DEP_FILES would
1336 if (&saw_sources_p (0) && keys %dep_files)
1338 # Set location of depcomp.
1339 &define_variable ('depcomp',
1340 "\$(SHELL) $am_config_aux_dir/depcomp",
1342 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1344 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1346 my @deplist = sort keys %dep_files;
1347 # Generate each `include' individually. Irix 6 make will
1348 # not properly include several files resulting from a
1349 # variable expansion; generating many separate includes
1351 $output_rules .= "\n";
1352 foreach my $iter (@deplist)
1354 $output_rules .= (subst ('AMDEP_TRUE')
1355 . subst ('am__include')
1357 . subst ('am__quote')
1359 . subst ('am__quote')
1363 # Compute the set of directories to remove in distclean-depend.
1364 my @depdirs = uniq (map { dirname ($_) } @deplist);
1365 $output_rules .= &file_contents ('depend',
1366 new Automake::Location,
1367 DEPDIRS => "@depdirs");
1372 &define_variable ('depcomp', '', INTERNAL);
1373 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1378 # Is the C linker needed?
1380 foreach my $ext (sort keys %extension_seen)
1382 next unless $extension_map{$ext};
1384 my $lang = $languages{$extension_map{$ext}};
1386 my $rule_file = $lang->rule_file || 'depend2';
1388 # Get information on $LANG.
1389 my $pfx = $lang->autodep;
1390 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1392 my ($AMDEP, $FASTDEP) =
1393 (option 'no-dependencies' || $lang->autodep eq 'no')
1394 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1396 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1397 my $verbose_nodep = ($AMDEP eq 'FALSE')
1398 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1399 my $silent = silent_flag ();
1401 my %transform = ('EXT' => $ext,
1405 'FASTDEP' => $FASTDEP,
1406 '-c' => $lang->compile_flag || '',
1407 # These are not used, but they need to be defined
1408 # so &transform do not complain.
1410 'DERIVED-EXT' => 'BUG',
1412 VERBOSE => $verbose,
1413 'VERBOSE-NODEP' => $verbose_nodep,
1417 # Generate the appropriate rules for this extension.
1418 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1419 || defined $lang->compile)
1421 # Some C compilers don't support -c -o. Use it only if really
1423 my $output_flag = $lang->output_flag || '';
1426 && $lang->name eq 'c'
1427 && option 'subdir-objects');
1429 # Compute a possible derived extension.
1430 # This is not used by depend2.am.
1431 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1433 # When we output an inference rule like `.c.o:' we
1434 # have two cases to consider: either subdir-objects
1435 # is used, or it is not.
1437 # In the latter case the rule is used to build objects
1438 # in the current directory, and dependencies always
1439 # go into `./$(DEPDIR)/'. We can hard-code this value.
1441 # In the former case the rule can be used to build
1442 # objects in sub-directories too. Dependencies should
1443 # go into the appropriate sub-directories, e.g.,
1444 # `sub/$(DEPDIR)/'. The value of this directory
1445 # needs to be computed on-the-fly.
1447 # DEPBASE holds the name of this directory, plus the
1448 # basename part of the object file (extensions Po, TPo,
1449 # Plo, TPlo will be added later as appropriate). It is
1450 # either hardcoded, or a shell variable (`$depbase') that
1451 # will be computed by the rule.
1453 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1455 file_contents ($rule_file,
1456 new Automake::Location,
1460 'DERIVED-EXT' => $der_ext,
1462 DEPBASE => $depbase,
1465 SOURCEFLAG => $sourceflags{$ext} || '',
1470 COMPILE => '$(' . $lang->compiler . ')',
1471 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1473 SUBDIROBJ => !! option 'subdir-objects');
1476 # Now include code for each specially handled object with this
1478 my %seen_files = ();
1479 foreach my $file (@{$lang_specific_files{$lang->name}})
1481 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1483 # We might see a given object twice, for instance if it is
1484 # used under different conditions.
1485 next if defined $seen_files{$obj};
1486 $seen_files{$obj} = 1;
1488 prog_error ("found " . $lang->name .
1489 " in handle_languages, but compiler not defined")
1490 unless defined $lang->compile;
1492 my $obj_compile = $lang->compile;
1494 # Rewrite each occurrence of `AM_$flag' in the compile
1495 # rule into `${derived}_$flag' if it exists.
1496 for my $flag (@{$lang->flags})
1498 my $val = "${derived}_$flag";
1499 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1503 my $libtool_tag = '';
1504 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1506 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1509 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1510 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1512 my $ltverbose = define_verbose_libtool ();
1514 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1515 . "--mode=compile $obj_compile";
1517 # We _need_ `-o' for per object rules.
1518 my $output_flag = $lang->output_flag || '-o';
1520 my $depbase = dirname ($obj);
1524 unless $depbase eq '';
1525 $depbase .= '$(DEPDIR)/' . basename ($obj);
1527 # Support for deansified files in subdirectories is ugly
1528 # enough to deserve an explanation.
1530 # A Note about normal ansi2knr processing first. On
1532 # AUTOMAKE_OPTIONS = ansi2knr
1533 # bin_PROGRAMS = foo
1534 # foo_SOURCES = foo.c
1536 # we generate rules similar to:
1538 # foo: foo$U.o; link ...
1539 # foo$U.o: foo$U.c; compile ...
1540 # foo_.c: foo.c; ansi2knr ...
1542 # this is fairly compact, and will call ansi2knr depending
1543 # on the value of $U (`' or `_').
1545 # It's harder with subdir sources. On
1547 # AUTOMAKE_OPTIONS = ansi2knr
1548 # bin_PROGRAMS = foo
1549 # foo_SOURCES = sub/foo.c
1551 # we have to create foo_.c in the current directory.
1552 # (Unless the user asks 'subdir-objects'.) This is important
1553 # in case the same file (`foo.c') is compiled from other
1554 # directories with different cpp options: foo_.c would
1555 # be preprocessed for only one set of options if it were
1556 # put in the subdirectory.
1558 # Because foo$U.o must be built from either foo_.c or
1559 # sub/foo.c we can't be as concise as in the first example.
1562 # foo: foo$U.o; link ...
1563 # foo_.o: foo_.c; compile ...
1564 # foo.o: sub/foo.c; compile ...
1565 # foo_.c: foo.c; ansi2knr ...
1567 # This is why we'll now transform $rule_file twice
1568 # if we detect this case.
1569 # A first time we output the compile rule with `$U'
1570 # replaced by `_' and the source directory removed,
1571 # and another time we simply remove `$U'.
1573 # Note that at this point $source (as computed by
1574 # &handle_single_transform) is `sub/foo$U.c'.
1575 # This can be confusing: it can be used as-is when
1576 # subdir-objects is set, otherwise you have to know
1577 # it really means `foo_.c' or `sub/foo.c'.
1578 my $objdir = dirname ($obj);
1579 my $srcdir = dirname ($source);
1580 if ($lang->ansi && $obj =~ /\$U/)
1582 prog_error "`$obj' contains \$U, but `$source' doesn't."
1583 if $source !~ /\$U/;
1585 (my $source_ = $source) =~ s/\$U/_/g;
1586 # Output an additional rule if _.c and .c are not in
1587 # the same directory. (_.c is always in $objdir.)
1588 if ($objdir ne $srcdir)
1590 (my $obj_ = $obj) =~ s/\$U/_/g;
1591 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1592 $source_ = basename ($source_);
1595 file_contents ($rule_file,
1596 new Automake::Location,
1600 DEPBASE => $depbase_,
1603 SOURCEFLAG => $sourceflags{$srcext} || '',
1604 OBJ => "$obj_$myext",
1605 OBJOBJ => "$obj_.obj",
1606 LTOBJ => "$obj_.lo",
1608 COMPILE => $obj_compile,
1609 LTCOMPILE => $obj_ltcompile,
1613 $depbase =~ s/\$U//g;
1614 $source =~ s/\$U//g;
1619 file_contents ($rule_file,
1620 new Automake::Location,
1624 DEPBASE => $depbase,
1627 SOURCEFLAG => $sourceflags{$srcext} || '',
1628 # Use $myext and not `.o' here, in case
1629 # we are actually building a new source
1630 # file -- e.g. via yacc.
1631 OBJ => "$obj$myext",
1632 OBJOBJ => "$obj.obj",
1635 VERBOSE => $verbose,
1636 'VERBOSE-NODEP' => $verbose_nodep,
1638 COMPILE => $obj_compile,
1639 LTCOMPILE => $obj_ltcompile,
1644 # The rest of the loop is done once per language.
1645 next if defined $done{$lang};
1648 # Load the language dependent Makefile chunks.
1649 my %lang = map { uc ($_) => 0 } keys %languages;
1650 $lang{uc ($lang->name)} = 1;
1651 $output_rules .= file_contents ('lang-compile',
1652 new Automake::Location,
1655 # If the source to a program consists entirely of code from a
1656 # `pure' language, for instance C++ or Fortran 77, then we
1657 # don't need the C compiler code. However if we run into
1658 # something unusual then we do generate the C code. There are
1659 # probably corner cases here that do not work properly.
1660 # People linking Java code to Fortran code deserve pain.
1661 $needs_c ||= ! $lang->pure;
1663 define_compiler_variable ($lang)
1664 if ($lang->compile);
1666 define_linker_variable ($lang)
1669 require_variables ("$am_file.am", $lang->Name . " source seen",
1670 TRUE, @{$lang->config_vars});
1672 # Call the finisher.
1675 # Flags listed in `->flags' are user variables (per GNU Standards),
1676 # they should not be overridden in the Makefile...
1677 my @dont_override = @{$lang->flags};
1678 # ... and so is LDFLAGS.
1679 push @dont_override, 'LDFLAGS' if $lang->link;
1681 check_user_variables @dont_override;
1684 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1685 # suffix rule was learned), don't bother with the C stuff. But if
1686 # anything else creeps in, then use it.
1688 if $need_link || suffix_rules_count > 1;
1692 &define_compiler_variable ($languages{'c'})
1693 unless defined $done{$languages{'c'}};
1694 define_linker_variable ($languages{'c'});
1697 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1698 define_verbose_tagvar ('GEN');
1702 # append_exeext { PREDICATE } $MACRO
1703 # ----------------------------------
1704 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1705 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1708 # This is typically used on all filenames of *_PROGRAMS, and filenames
1709 # of TESTS that are programs.
1710 sub append_exeext (&$)
1712 my ($pred, $macro) = @_;
1714 transform_variable_recursively
1715 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1717 my ($subvar, $val, $cond, $full_cond) = @_;
1718 # Append $(EXEEXT) unless the user did it already, or it's a
1721 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1727 # Check to make sure a source defined in LIBOBJS is not explicitly
1728 # mentioned. This is a separate function (as opposed to being inlined
1729 # in handle_source_transform) because it isn't always appropriate to
1731 sub check_libobjs_sources
1733 my ($one_file, $unxformed) = @_;
1735 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1736 'dist_EXTRA_', 'nodist_EXTRA_')
1739 my $varname = $prefix . $one_file . '_SOURCES';
1740 my $var = var ($varname);
1743 @files = $var->value_as_list_recursive;
1745 elsif ($prefix eq '')
1747 @files = ($unxformed . '.c');
1754 foreach my $file (@files)
1756 err_var ($prefix . $one_file . '_SOURCES',
1757 "automatically discovered file `$file' should not" .
1758 " be explicitly mentioned")
1759 if defined $libsources{$file};
1766 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1767 # -----------------------------------------------------------------------------
1768 # Does much of the actual work for handle_source_transform.
1770 # $VAR is the name of the variable that the source filenames come from
1771 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1772 # $DERIVED is the name of resulting executable or library
1773 # $OBJ is the object extension (e.g., `$U.lo')
1774 # $FILE the source file to transform
1775 # %TRANSFORM contains extras arguments to pass to file_contents
1776 # when producing explicit rules
1777 # Result is a list of the names of objects
1778 # %linkers_used will be updated with any linkers needed
1779 sub handle_single_transform ($$$$$%)
1781 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1782 my @files = ($_file);
1784 my $nonansi_obj = $obj;
1785 $nonansi_obj =~ s/\$U//g;
1787 # Turn sources into objects. We use a while loop like this
1788 # because we might add to @files in the loop.
1789 while (scalar @files > 0)
1793 # Configure substitutions in _SOURCES variables are errors.
1796 my $parent_msg = '';
1797 $parent_msg = "\nand is referred to from `$topparent'"
1798 if $topparent ne $var->name;
1800 "`" . $var->name . "' includes configure substitution `$_'"
1801 . $parent_msg . ";\nconfigure " .
1802 "substitutions are not allowed in _SOURCES variables");
1806 # If the source file is in a subdirectory then the `.o' is put
1807 # into the current directory, unless the subdir-objects option
1810 # Split file name into base and extension.
1811 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1813 my $directory = $1 || '';
1817 # We must generate a rule for the object if it requires its own flags.
1819 my ($linker, $object);
1821 # This records whether we've seen a derived source file (e.g.
1823 my $derived_source = 0;
1825 # This holds the `aggregate context' of the file we are
1826 # currently examining. If the file is compiled with
1827 # per-object flags, then it will be the name of the object.
1828 # Otherwise it will be `AM'. This is used by the target hook
1829 # language function.
1830 my $aggregate = 'AM';
1832 $extension = &derive_suffix ($extension, $nonansi_obj);
1834 if ($extension_map{$extension} &&
1835 ($lang = $languages{$extension_map{$extension}}))
1837 # Found the language, so see what it says.
1838 &saw_extension ($extension);
1840 # Do we have per-executable flags for this executable?
1841 my $have_per_exec_flags = 0;
1842 my @peflags = @{$lang->flags};
1843 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1844 foreach my $flag (@peflags)
1846 if (set_seen ("${derived}_$flag"))
1848 $have_per_exec_flags = 1;
1853 # Note: computed subr call. The language rewrite function
1854 # should return one of the LANG_* constants. It could
1855 # also return a list whose first value is such a constant
1856 # and whose second value is a new source extension which
1857 # should be applied. This means this particular language
1858 # generates another source file which we must then process
1860 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1861 my ($r, $source_extension)
1862 = &$subr ($directory, $base, $extension,
1863 $nonansi_obj, $have_per_exec_flags, $var);
1864 # Skip this entry if we were asked not to process it.
1865 next if $r == LANG_IGNORE;
1867 # Now extract linker and other info.
1868 $linker = $lang->linker;
1871 if (defined $source_extension)
1873 $this_obj_ext = $source_extension;
1874 $derived_source = 1;
1878 $this_obj_ext = $obj;
1882 $this_obj_ext = $nonansi_obj;
1884 $object = $base . $this_obj_ext;
1886 if ($have_per_exec_flags)
1888 # We have a per-executable flag in effect for this
1889 # object. In this case we rewrite the object's
1890 # name to ensure it is unique.
1892 # We choose the name `DERIVED_OBJECT' to ensure
1893 # (1) uniqueness, and (2) continuity between
1894 # invocations. However, this will result in a
1895 # name that is too long for losing systems, in
1896 # some situations. So we provide _SHORTNAME to
1899 my $dname = $derived;
1900 my $var = var ($derived . '_SHORTNAME');
1903 # FIXME: should use the same Condition as
1904 # the _SOURCES variable. But this is really
1905 # silly overkill -- nobody should have
1906 # conditional shortnames.
1907 $dname = $var->variable_value;
1909 $object = $dname . '-' . $object;
1911 prog_error ($lang->name . " flags defined without compiler")
1912 if ! defined $lang->compile;
1917 # If rewrite said it was ok, put the object into a
1919 if ($r == LANG_SUBDIR && $directory ne '')
1921 $object = $directory . '/' . $object;
1924 # If the object file has been renamed (because per-target
1925 # flags are used) we cannot compile the file with an
1926 # inference rule: we need an explicit rule.
1928 # If the source is in a subdirectory and the object is in
1929 # the current directory, we also need an explicit rule.
1931 # If both source and object files are in a subdirectory
1932 # (this happens when the subdir-objects option is used),
1933 # then the inference will work.
1935 # The latter case deserves a historical note. When the
1936 # subdir-objects option was added on 1999-04-11 it was
1937 # thought that inferences rules would work for
1938 # subdirectory objects too. Later, on 1999-11-22,
1939 # automake was changed to output explicit rules even for
1940 # subdir-objects. Nobody remembers why, but this occurred
1941 # soon after the merge of the user-dep-gen-branch so it
1942 # might be related. In late 2003 people complained about
1943 # the size of the generated Makefile.ins (libgcj, with
1944 # 2200+ subdir objects was reported to have a 9MB
1945 # Makefile), so we now rely on inference rules again.
1946 # Maybe we'll run across the same issue as in the past,
1947 # but at least this time we can document it. However since
1948 # dependency tracking has evolved it is possible that
1949 # our old problem no longer exists.
1950 # Using inference rules for subdir-objects has been tested
1951 # with GNU make, Solaris make, Ultrix make, BSD make,
1952 # HP-UX make, and OSF1 make successfully.
1954 || ($directory ne '' && ! option 'subdir-objects')
1955 # We must also use specific rules for a nodist_ source
1956 # if its language requests it.
1957 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1959 my $obj_sans_ext = substr ($object, 0,
1960 - length ($this_obj_ext));
1962 if ($directory ne '')
1964 $full_ansi = $directory . '/' . $base . $extension;
1968 $full_ansi = $base . $extension;
1971 if ($lang->ansi && option 'ansi2knr')
1973 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1974 $obj_sans_ext .= '$U';
1977 my @specifics = ($full_ansi, $obj_sans_ext,
1978 # Only use $this_obj_ext in the derived
1979 # source case because in the other case we
1980 # *don't* want $(OBJEXT) to appear here.
1981 ($derived_source ? $this_obj_ext : '.o'),
1984 # If we renamed the object then we want to use the
1985 # per-executable flag name. But if this is simply a
1986 # subdir build then we still want to use the AM_ flag
1990 unshift @specifics, $derived;
1991 $aggregate = $derived;
1995 unshift @specifics, 'AM';
1998 # Each item on this list is a reference to a list consisting
1999 # of four values followed by additional transform flags for
2000 # file_contents. The four values are the derived flag prefix
2001 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
2002 # source file, the base name of the output file, and
2003 # the extension for the object file.
2004 push (@{$lang_specific_files{$lang->name}},
2005 [@specifics, %transform]);
2008 elsif ($extension eq $nonansi_obj)
2010 # This is probably the result of a direct suffix rule.
2011 # In this case we just accept the rewrite.
2012 $object = "$base$extension";
2013 $object = "$directory/$object" if $directory ne '';
2018 # No error message here. Used to have one, but it was
2020 # FIXME: we could potentially do more processing here,
2021 # perhaps treating the new extension as though it were a
2022 # new source extension (as above). This would require
2023 # more restructuring than is appropriate right now.
2027 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2028 if (defined $object_map{$object}
2029 && $object_map{$object} ne $full);
2031 my $comp_val = (($object =~ /\.lo$/)
2032 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2033 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2034 if (defined $object_compilation_map{$comp_obj}
2035 && $object_compilation_map{$comp_obj} != 0
2036 # Only see the error once.
2037 && ($object_compilation_map{$comp_obj}
2038 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2039 && $object_compilation_map{$comp_obj} != $comp_val)
2041 err_am "object `$comp_obj' created both with libtool and without";
2043 $object_compilation_map{$comp_obj} |= $comp_val;
2047 # Let the language do some special magic if required.
2048 $lang->target_hook ($aggregate, $object, $full, %transform);
2051 if ($derived_source)
2053 prog_error ($lang->name . " has automatic dependency tracking")
2054 if $lang->autodep ne 'no';
2055 # Make sure this new source file is handled next. That will
2056 # make it appear to be at the right place in the list.
2057 unshift (@files, $object);
2058 # Distribute derived sources unless the source they are
2059 # derived from is not.
2060 &push_dist_common ($object)
2061 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2065 $linkers_used{$linker} = 1;
2067 push (@result, $object);
2069 if (! defined $object_map{$object})
2072 $object_map{$object} = $full;
2074 # If resulting object is in subdir, we need to make
2075 # sure the subdir exists at build time.
2076 if ($object =~ /\//)
2078 # FIXME: check that $DIRECTORY is somewhere in the
2081 # For Java, the way we're handling it right now, a
2082 # `..' component doesn't make sense.
2083 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2085 err_am "`$full' should not contain a `..' component";
2088 # Make sure object is removed by `make mostlyclean'.
2089 $compile_clean_files{$object} = MOSTLY_CLEAN;
2090 # If we have a libtool object then we also must remove
2092 if ($object =~ /\.lo$/)
2094 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2095 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2097 # Remove any libtool object in this directory.
2098 $libtool_clean_directories{$directory} = 1;
2101 push (@dep_list, require_build_directory ($directory));
2103 # If we're generating dependencies, we also want
2104 # to make sure that the appropriate subdir of the
2105 # .deps directory is created.
2107 require_build_directory ($directory . '/$(DEPDIR)'))
2108 unless option 'no-dependencies';
2111 &pretty_print_rule ($object . ':', "\t", @dep_list)
2112 if scalar @dep_list > 0;
2115 # Transform .o or $o file into .P file (for automatic
2117 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2118 # might fail over them in an include statement.
2119 # Leading double slashes may be special, as per Posix, so deal
2120 # with them carefully.
2121 if ($lang && $lang->autodep ne 'no')
2123 my $depfile = $object;
2124 $depfile =~ s/\.([^.]*)$/.P$1/;
2125 $depfile =~ s/\$\(OBJEXT\)$/o/;
2126 my $maybe_extra_leading_slash = '';
2127 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2128 $depfile =~ s,/+,/,g;
2129 my $basename = basename ($depfile);
2130 # This might make $dirname empty, but we account for that below.
2131 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2132 $dirname = $maybe_extra_leading_slash . $dirname;
2133 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2142 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2143 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2144 # ---------------------------------------------------------------------------
2145 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2148 # $VAR is the name of the _SOURCES variable
2149 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2150 # it will be generated and returned).
2151 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2152 # work done to determine the linker will be).
2153 # $ONE_FILE is the canonical (transformed) name of object to build
2154 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2155 # $TOPPARENT is the _SOURCES variable being processed.
2156 # $WHERE context into which this definition is done
2157 # %TRANSFORM extra arguments to pass to file_contents when producing
2160 # Result is a pair ($LINKER, $OBJVAR):
2161 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2162 sub define_objects_from_sources ($$$$$$$%)
2164 my ($var, $objvar, $nodefine, $one_file,
2165 $obj, $topparent, $where, %transform) = @_;
2167 my $needlinker = "";
2169 transform_variable_recursively
2170 ($var, $objvar, 'am__objects', $nodefine, $where,
2171 # The transform code to run on each filename.
2173 my ($subvar, $val, $cond, $full_cond) = @_;
2174 my @trans = handle_single_transform ($subvar, $topparent,
2175 $one_file, $obj, $val,
2177 $needlinker = "true" if @trans;
2185 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2186 # -----------------------------------------------------------------------------
2187 # Handle SOURCE->OBJECT transform for one program or library.
2189 # canonical (transformed) name of target to build
2190 # actual target of object to build
2191 # object extension (i.e., either `.o' or `$o')
2192 # location of the source variable
2193 # extra arguments to pass to file_contents when producing rules
2194 # Return the name of the linker variable that must be used.
2195 # Empty return means just use `LINK'.
2196 sub handle_source_transform ($$$$%)
2198 # one_file is canonical name. unxformed is given name. obj is
2200 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2204 # No point in continuing if _OBJECTS is defined.
2205 return if reject_var ($one_file . '_OBJECTS',
2206 $one_file . '_OBJECTS should not be defined');
2211 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2212 'dist_EXTRA_', 'nodist_EXTRA_')
2214 my $varname = $prefix . $one_file . "_SOURCES";
2215 my $var = var $varname;
2218 # We are going to define _OBJECTS variables using the prefix.
2219 # Then we glom them all together. So we can't use the null
2220 # prefix here as we need it later.
2221 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2223 # Keep track of which prefixes we saw.
2224 $used_pfx{$xpfx} = 1
2225 unless $prefix =~ /EXTRA_/;
2227 push @sources, "\$($varname)";
2228 push @dist_sources, shadow_unconditionally ($varname, $where)
2229 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2232 define_objects_from_sources ($varname,
2233 $xpfx . $one_file . '_OBJECTS',
2234 $prefix =~ /EXTRA_/,
2235 $one_file, $obj, $varname, $where,
2236 DIST_SOURCE => ($prefix !~ /^nodist_/),
2241 $linker ||= &resolve_linker (%linkers_used);
2244 my @keys = sort keys %used_pfx;
2245 if (scalar @keys == 0)
2247 # The default source for libfoo.la is libfoo.c, but for
2248 # backward compatibility we first look at libfoo_la.c,
2249 # if no default source suffix is given.
2250 my $old_default_source = "$one_file.c";
2251 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2252 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2253 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2254 if $default_source_ext =~ /[\t ]/;
2255 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2256 if ($old_default_source ne $default_source
2258 && (rule $old_default_source
2259 || rule '$(srcdir)/' . $old_default_source
2260 || rule '${srcdir}/' . $old_default_source
2261 || -f $old_default_source))
2263 my $loc = $where->clone;
2265 msg ('obsolete', $loc,
2266 "the default source for `$unxformed' has been changed "
2267 . "to `$default_source'.\n(Using `$old_default_source' for "
2268 . "backward compatibility.)");
2269 $default_source = $old_default_source;
2271 # If a rule exists to build this source with a $(srcdir)
2272 # prefix, use that prefix in our variables too. This is for
2273 # the sake of BSD Make.
2274 if (rule '$(srcdir)/' . $default_source
2275 || rule '${srcdir}/' . $default_source)
2277 $default_source = '$(srcdir)/' . $default_source;
2280 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2281 push (@sources, $default_source);
2282 push (@dist_sources, $default_source);
2286 handle_single_transform ($one_file . '_SOURCES',
2287 $one_file . '_SOURCES',
2289 $default_source, %transform);
2290 $linker ||= &resolve_linker (%linkers_used);
2291 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2295 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2296 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2299 # If we want to use `LINK' we must make sure it is defined.
2309 # handle_lib_objects ($XNAME, $VAR)
2310 # ---------------------------------
2311 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2312 # Also, generate _DEPENDENCIES variable if appropriate.
2314 # transformed name of object being built, or empty string if no object
2315 # name of _LDADD/_LIBADD-type variable to examine
2316 # Returns 1 if LIBOBJS seen, 0 otherwise.
2317 sub handle_lib_objects
2319 my ($xname, $varname) = @_;
2321 my $var = var ($varname);
2322 prog_error "handle_lib_objects: `$varname' undefined"
2324 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2325 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2326 my $prefix = $1 || 'AM_';
2328 my $seen_libobjs = 0;
2331 transform_variable_recursively
2332 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2334 # Transformation function, run on each filename.
2336 my ($subvar, $val, $cond, $full_cond) = @_;
2340 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2341 if ($val !~ /^-[lL]/ &&
2342 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2343 # for Libtool libraries or programs. (Actually we are a bit
2344 # lax here since this code also applies to non-libtool
2345 # libraries or programs, for which -dlopen and -dlopreopen
2346 # are pure nonsense. Diagnosing this doesn't seem very
2347 # important: the developer will quickly get complaints from
2349 $val !~ /^-dl(?:pre)?open$/ &&
2350 # Only get this error once.
2354 # FIXME: should display a stack of nested variables
2355 # as context when $var != $subvar.
2356 err_var ($var, "linker flags such as `$val' belong in "
2357 . "`${prefix}LDFLAGS");
2361 elsif ($val !~ /^\@.*\@$/)
2363 # Assume we have a file of some sort, and output it into the
2364 # dependency variable. Autoconf substitutions are not output;
2365 # rarely is a new dependency substituted into e.g. foo_LDADD
2366 # -- but bad things (e.g. -lX11) are routinely substituted.
2367 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2368 # and handled specially below.
2371 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2373 handle_LIBOBJS ($subvar, $cond, $1);
2377 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2379 handle_ALLOCA ($subvar, $cond, $1);
2388 return $seen_libobjs;
2391 # handle_LIBOBJS_or_ALLOCA ($VAR)
2392 # -------------------------------
2393 # Definitions common to LIBOBJS and ALLOCA.
2394 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2395 sub handle_LIBOBJS_or_ALLOCA ($)
2401 # If LIBOBJS files must be built in another directory we have
2402 # to define LIBOBJDIR and ensure the files get cleaned.
2403 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2404 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2405 if ($config_libobj_dir
2406 && $relative_dir ne $config_libobj_dir)
2408 if (option 'subdir-objects')
2410 # In the top-level Makefile we do not use $(top_builddir), because
2411 # we are already there, and since the targets are built without
2412 # a $(top_builddir), it helps BSD Make to match them with
2414 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2415 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2416 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2417 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2418 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2419 # be created by libtool as a side-effect of creating LTLIBOBJS).
2420 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2424 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2425 . " `subdir-objects' is not set");
2432 sub handle_LIBOBJS ($$$)
2434 my ($var, $cond, $lt) = @_;
2435 my $myobjext = $lt ? 'lo' : 'o';
2438 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2439 if ! keys %libsources;
2441 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2443 foreach my $iter (keys %libsources)
2445 if ($iter =~ /\.[cly]$/)
2447 &saw_extension ($&);
2448 &saw_extension ('.c');
2451 if ($iter =~ /\.h$/)
2453 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2455 elsif ($iter ne 'alloca.c')
2457 my $rewrite = $iter;
2458 $rewrite =~ s/\.c$/.P$myobjext/;
2459 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2460 $rewrite = "^" . quotemeta ($iter) . "\$";
2461 # Only require the file if it is not a built source.
2462 my $bs = var ('BUILT_SOURCES');
2463 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2465 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2471 sub handle_ALLOCA ($$$)
2473 my ($var, $cond, $lt) = @_;
2474 my $myobjext = $lt ? 'lo' : 'o';
2476 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2478 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2479 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2480 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2481 &saw_extension ('.c');
2484 # Canonicalize the input parameter
2488 $string =~ tr/A-Za-z0-9_\@/_/c;
2492 # Canonicalize a name, and check to make sure the non-canonical name
2493 # is never used. Returns canonical name. Arguments are name and a
2494 # list of suffixes to check for.
2495 sub check_canonical_spelling
2497 my ($name, @suffixes) = @_;
2499 my $xname = &canonicalize ($name);
2500 if ($xname ne $name)
2502 foreach my $xt (@suffixes)
2504 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2514 # Set up the compile suite.
2515 sub handle_compile ()
2518 unless $get_object_extension_was_run;
2521 my $default_includes = '';
2522 if (! option 'nostdinc')
2524 my @incs = ('-I.', subst ('am__isrc'));
2526 my $var = var 'CONFIG_HEADER';
2529 foreach my $hdr (split (' ', $var->variable_value))
2531 push @incs, '-I' . dirname ($hdr);
2534 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2535 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2536 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2537 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2538 # to just put @am__isrc@ right after `-I.', without a space.
2539 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2542 my (@mostly_rms, @dist_rms);
2543 foreach my $item (sort keys %compile_clean_files)
2545 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2547 push (@mostly_rms, "\t-rm -f $item");
2549 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2551 push (@dist_rms, "\t-rm -f $item");
2555 prog_error 'invalid entry in %compile_clean_files';
2559 my ($coms, $vars, $rules) =
2560 &file_contents_internal (1, "$libdir/am/compile.am",
2561 new Automake::Location,
2562 ('DEFAULT_INCLUDES' => $default_includes,
2563 'MOSTLYRMS' => join ("\n", @mostly_rms),
2564 'DISTRMS' => join ("\n", @dist_rms)));
2565 $output_vars .= $vars;
2566 $output_rules .= "$coms$rules";
2568 # Check for automatic de-ANSI-fication.
2569 if (option 'ansi2knr')
2571 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2572 my $ansi2knr_dir = '';
2574 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2575 TRUE, "ANSI2KNR", "U");
2577 # topdir is where ansi2knr should be.
2578 if ($ansi2knr_filename eq 'ansi2knr')
2580 # Only require ansi2knr files if they should appear in
2582 require_file ($ansi2knr_where, FOREIGN,
2583 'ansi2knr.c', 'ansi2knr.1');
2585 # ansi2knr needs to be built before subdirs, so unshift it
2586 # rather then pushing it.
2587 unshift (@all, '$(ANSI2KNR)');
2591 $ansi2knr_dir = dirname ($ansi2knr_filename);
2594 $output_rules .= &file_contents ('ansi2knr',
2595 new Automake::Location,
2596 'ANSI2KNR-DIR' => $ansi2knr_dir);
2603 # Handle libtool rules.
2606 return unless var ('LIBTOOL');
2608 # Libtool requires some files, but only at top level.
2609 # (Starting with Libtool 2.0 we do not have to bother. These
2610 # requirements are done with AC_REQUIRE_AUX_FILE.)
2611 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2612 if $relative_dir eq '.' && ! $libtool_new_api;
2615 foreach my $item (sort keys %libtool_clean_directories)
2617 my $dir = ($item eq '.') ? '' : "$item/";
2618 # .libs is for Unix, _libs for DOS.
2619 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2622 check_user_variables 'LIBTOOLFLAGS';
2624 # Output the libtool compilation rules.
2625 $output_rules .= &file_contents ('libtool',
2626 new Automake::Location,
2627 LTRMS => join ("\n", @libtool_rms));
2630 # handle_programs ()
2631 # ------------------
2632 # Handle C programs.
2635 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2636 'bin', 'sbin', 'libexec', 'pkglibexec',
2638 return if ! @proglist;
2640 my $seen_global_libobjs =
2641 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2643 foreach my $pair (@proglist)
2645 my ($where, $one_file) = @$pair;
2647 my $seen_libobjs = 0;
2648 my $obj = get_object_extension '.$(OBJEXT)';
2650 $known_programs{$one_file} = $where;
2652 # Canonicalize names and check for misspellings.
2653 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2654 '_SOURCES', '_OBJECTS',
2657 $where->push_context ("while processing program `$one_file'");
2658 $where->set (INTERNAL->get);
2660 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2661 NONLIBTOOL => 1, LIBTOOL => 0);
2663 if (var ($xname . "_LDADD"))
2665 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2669 # User didn't define prog_LDADD override. So do it.
2670 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2672 # This does a bit too much work. But we need it to
2673 # generate _DEPENDENCIES when appropriate.
2676 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2680 reject_var ($xname . '_LIBADD',
2681 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2683 set_seen ($xname . '_DEPENDENCIES');
2684 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2685 set_seen ($xname . '_LDFLAGS');
2687 # Determine program to use for link.
2688 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2689 $vlink = verbose_flag ($vlink || 'GEN');
2691 # If the resulting program lies into a subdirectory,
2692 # make sure this directory will exist.
2693 my $dirstamp = require_build_directory_maybe ($one_file);
2695 $libtool_clean_directories{dirname ($one_file)} = 1;
2697 $output_rules .= &file_contents ('program',
2699 PROGRAM => $one_file,
2703 DIRSTAMP => $dirstamp,
2704 EXEEXT => '$(EXEEXT)');
2706 if ($seen_libobjs || $seen_global_libobjs)
2708 if (var ($xname . '_LDADD'))
2710 &check_libobjs_sources ($xname, $xname . '_LDADD');
2712 elsif (var ('LDADD'))
2714 &check_libobjs_sources ($xname, 'LDADD');
2721 # handle_libraries ()
2722 # -------------------
2724 sub handle_libraries
2726 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2727 'lib', 'pkglib', 'noinst', 'check');
2728 return if ! @liblist;
2730 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2735 my $var = rvar ($prefix[0] . '_LIBRARIES');
2736 $var->requires_variables ('library used', 'RANLIB');
2739 &define_variable ('AR', 'ar', INTERNAL);
2740 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2741 &define_verbose_tagvar ('AR');
2743 foreach my $pair (@liblist)
2745 my ($where, $onelib) = @$pair;
2747 my $seen_libobjs = 0;
2748 # Check that the library fits the standard naming convention.
2749 my $bn = basename ($onelib);
2750 if ($bn !~ /^lib.*\.a$/)
2752 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2753 my $suggestion = dirname ($onelib) . "/$bn";
2754 $suggestion =~ s|^\./||g;
2755 msg ('error-gnu/warn', $where,
2756 "`$onelib' is not a standard library name\n"
2757 . "did you mean `$suggestion'?")
2760 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2762 $where->push_context ("while processing library `$onelib'");
2763 $where->set (INTERNAL->get);
2765 my $obj = get_object_extension '.$(OBJEXT)';
2767 # Canonicalize names and check for misspellings.
2768 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2769 '_OBJECTS', '_DEPENDENCIES',
2772 if (! var ($xlib . '_AR'))
2774 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2777 # Generate support for conditional object inclusion in
2779 if (var ($xlib . '_LIBADD'))
2781 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2788 &define_variable ($xlib . "_LIBADD", '', $where);
2791 reject_var ($xlib . '_LDADD',
2792 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2794 # Make sure we at look at this.
2795 set_seen ($xlib . '_DEPENDENCIES');
2796 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2798 &handle_source_transform ($xlib, $onelib, $obj, $where,
2799 NONLIBTOOL => 1, LIBTOOL => 0);
2801 # If the resulting library lies into a subdirectory,
2802 # make sure this directory will exist.
2803 my $dirstamp = require_build_directory_maybe ($onelib);
2804 my $verbose = verbose_flag ('AR');
2805 my $silent = silent_flag ();
2807 $output_rules .= &file_contents ('library',
2809 VERBOSE => $verbose,
2813 DIRSTAMP => $dirstamp);
2817 if (var ($xlib . '_LIBADD'))
2819 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2825 msg ('extra-portability', $where,
2826 "`$onelib': linking libraries using a non-POSIX\n"
2827 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
2833 # handle_ltlibraries ()
2834 # ---------------------
2835 # Handle shared libraries.
2836 sub handle_ltlibraries
2838 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2839 'noinst', 'lib', 'pkglib', 'check');
2840 return if ! @liblist;
2842 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2847 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2848 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2852 my %instsubdirs = ();
2854 my %liblocations = (); # Location (in Makefile.am) of each library.
2856 foreach my $key (@prefix)
2858 # Get the installation directory of each library.
2860 my $strip_subdir = 1;
2861 if ($dir =~ /^nobase_/)
2863 $dir =~ s/^nobase_//;
2866 my $var = rvar ($key . '_LTLIBRARIES');
2868 # We reject libraries which are installed in several places
2869 # in the same condition, because we can only specify one
2871 $var->traverse_recursively
2874 my ($var, $val, $cond, $full_cond) = @_;
2875 my $hcond = $full_cond->human;
2876 my $where = $var->rdef ($cond)->location;
2878 $ldir = '/' . dirname ($val)
2879 if (!$strip_subdir);
2880 # A library cannot be installed in different directories
2881 # in overlapping conditions.
2882 if (exists $instconds{$val})
2885 $instconds{$val}->ambiguous_p ($val, $full_cond);
2889 error ($where, $msg, partial => 1);
2890 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2891 $dirtxt = "built for `$dir'"
2892 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2894 $full_cond->true ? "" : " in condition $hcond";
2896 error ($where, "`$val' should be $dirtxt$dircond ...",
2899 my $hacond = $acond->human;
2900 my $adir = $instdirs{$val}{$acond};
2901 my $adirtxt = "installed in `$adir'";
2902 $adirtxt = "built for `$adir'"
2903 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2904 || $adir eq 'check');
2905 my $adircond = $acond->true ? "" : " in condition $hacond";
2907 my $onlyone = ($dir ne $adir) ?
2908 ("\nLibtool libraries can be built for only one "
2909 . "destination.") : "";
2911 error ($liblocations{$val}{$acond},
2912 "... and should also be $adirtxt$adircond.$onlyone");
2918 $instconds{$val} = new Automake::DisjConditions;
2920 $instdirs{$val}{$full_cond} = $dir;
2921 $instsubdirs{$val}{$full_cond} = $ldir;
2922 $liblocations{$val}{$full_cond} = $where;
2923 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2929 skip_ac_subst => 1);
2932 foreach my $pair (@liblist)
2934 my ($where, $onelib) = @$pair;
2936 my $seen_libobjs = 0;
2937 my $obj = get_object_extension '.lo';
2939 # Canonicalize names and check for misspellings.
2940 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2941 '_SOURCES', '_OBJECTS',
2944 # Check that the library fits the standard naming convention.
2945 my $libname_rx = '^lib.*\.la';
2946 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2947 my $ldvar2 = var ('LDFLAGS');
2948 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2949 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2951 # Relax name checking for libtool modules.
2952 $libname_rx = '\.la';
2955 my $bn = basename ($onelib);
2956 if ($bn !~ /$libname_rx$/)
2958 my $type = 'library';
2959 if ($libname_rx eq '\.la')
2961 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2966 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2968 my $suggestion = dirname ($onelib) . "/$bn";
2969 $suggestion =~ s|^\./||g;
2970 msg ('error-gnu/warn', $where,
2971 "`$onelib' is not a standard libtool $type name\n"
2972 . "did you mean `$suggestion'?")
2975 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2977 $where->push_context ("while processing Libtool library `$onelib'");
2978 $where->set (INTERNAL->get);
2980 # Make sure we look at these.
2981 set_seen ($xlib . '_LDFLAGS');
2982 set_seen ($xlib . '_DEPENDENCIES');
2983 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2985 # Generate support for conditional object inclusion in
2987 if (var ($xlib . '_LIBADD'))
2989 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2996 &define_variable ($xlib . "_LIBADD", '', $where);
2999 reject_var ("${xlib}_LDADD",
3000 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
3003 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
3004 NONLIBTOOL => 0, LIBTOOL => 1);
3006 # Determine program to use for link.
3007 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
3008 $vlink = verbose_flag ($vlink || 'GEN');
3010 my $rpathvar = "am_${xlib}_rpath";
3011 my $rpath = "\$($rpathvar)";
3012 foreach my $rcond ($instconds{$onelib}->conds)
3015 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
3016 || $instdirs{$onelib}{$rcond} eq 'noinst'
3017 || $instdirs{$onelib}{$rcond} eq 'check')
3019 # It's an EXTRA_ library, so we can't specify -rpath,
3020 # because we don't know where the library will end up.
3021 # The user probably knows, but generally speaking automake
3022 # doesn't -- and in fact configure could decide
3023 # dynamically between two different locations.
3028 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
3029 $val .= $instsubdirs{$onelib}{$rcond}
3030 if defined $instsubdirs{$onelib}{$rcond};
3034 # If $rcond is true there is only one condition and
3035 # there is no point defining an helper variable.
3040 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3044 # If the resulting library lies into a subdirectory,
3045 # make sure this directory will exist.
3046 my $dirstamp = require_build_directory_maybe ($onelib);
3048 # Remember to cleanup .libs/ in this directory.
3049 my $dirname = dirname $onelib;
3050 $libtool_clean_directories{$dirname} = 1;
3052 $output_rules .= &file_contents ('ltlibrary',
3054 LTLIBRARY => $onelib,
3055 XLTLIBRARY => $xlib,
3059 DIRSTAMP => $dirstamp);
3062 if (var ($xlib . '_LIBADD'))
3064 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3070 msg ('extra-portability', $where,
3071 "`$onelib': linking libtool libraries using a non-POSIX\n"
3072 . "archiver requires `AM_PROG_AR' in `$configure_ac'")
3077 # See if any _SOURCES variable were misspelled.
3080 # It is ok if the user sets this particular variable.
3081 set_seen 'AM_LDFLAGS';
3083 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3085 foreach my $var (variables $primary)
3087 my $varname = $var->name;
3088 # A configure variable is always legitimate.
3089 next if exists $configure_vars{$varname};
3091 for my $cond ($var->conditions->conds)
3093 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3094 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3095 . " program or\nlibrary has `$1' as canonical name"
3096 . " (possible typo)")
3097 unless $var->rdef ($cond)->seen;
3107 # NOTE we no longer automatically clean SCRIPTS, because it is
3108 # useful to sometimes distribute scripts verbatim. This happens
3109 # e.g. in Automake itself.
3110 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3111 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
3118 ## ------------------------ ##
3119 ## Handling Texinfo files. ##
3120 ## ------------------------ ##
3122 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3123 # &scan_texinfo_file ($FILENAME)
3124 # ------------------------------
3125 # $OUTFILE - name of the info file produced by $FILENAME.
3126 # $VFILE - name of the version.texi file used (undef if none).
3127 # @CLEAN_FILES - list of byproducts (indexes etc.)
3128 sub scan_texinfo_file ($)
3130 my ($filename) = @_;
3132 # Some of the following extensions are always created, no matter
3133 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3134 # are only created when they are used. We used to scan $FILENAME
3135 # for their use, but that is not enough: they could be used in
3136 # included files. We can't scan included files because we don't
3137 # know the include path. Therefore we always erase these files, no
3138 # matter whether they are used or not.
3140 # (tmp is only created if an @macro is used and a certain e-TeX
3141 # feature is not available.)
3142 my %clean_suffixes =
3143 map { $_ => 1 } (qw(aux log toc tmp
3149 pg pgs)); # grep 'new.*index' texinfo.tex
3151 my $texi = new Automake::XFile "< $filename";
3152 verb "reading $filename";
3154 my ($outfile, $vfile);
3155 while ($_ = $texi->getline)
3157 if (/^\@setfilename +(\S+)/)
3159 # Honor only the first @setfilename. (It's possible to have
3160 # more occurrences later if the manual shows examples of how
3161 # to use @setfilename...)
3165 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3167 error ("$filename:$.",
3168 "output `$outfile' has unrecognized extension");
3172 # A "version.texi" file is actually any file whose name matches
3174 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3179 # Try to find new or unused indexes.
3181 # Creating a new category of index.
3182 elsif (/^\@def(code)?index (\w+)/)
3184 $clean_suffixes{$2} = 1;
3185 $clean_suffixes{"$2s"} = 1;
3188 # Merging an index into an another.
3189 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3191 delete $clean_suffixes{"$2s"};
3192 $clean_suffixes{"$3s"} = 1;
3199 err_am "`$filename' missing \@setfilename";
3203 my $infobase = basename ($filename);
3204 $infobase =~ s/\.te?xi(nfo)?$//;
3205 return ($outfile, $vfile,
3206 map { "$infobase.$_" } (sort keys %clean_suffixes));
3210 # ($DIRSTAMP, @CLEAN_FILES)
3211 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3212 # ------------------------------------------------------------------
3213 # SOURCE - the source Texinfo file
3214 # DEST - the destination Info file
3215 # INSRC - whether DEST should be built in the source tree
3216 # DEPENDENCIES - known dependencies
3217 sub output_texinfo_build_rules ($$$@)
3219 my ($source, $dest, $insrc, @deps) = @_;
3221 # Split `a.texi' into `a' and `.texi'.
3222 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3223 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3228 # We can output two kinds of rules: the "generic" rules use Make
3229 # suffix rules and are appropriate when $source and $dest do not lie
3230 # in a sub-directory; the "specific" rules are needed in the other
3233 # The former are output only once (this is not really apparent here,
3234 # but just remember that some logic deeper in Automake will not
3235 # output the same rule twice); while the later need to be output for
3236 # each Texinfo source.
3239 my $sdir = dirname $source;
3240 if ($sdir eq '.' && dirname ($dest) eq '.')
3243 $makeinfoflags = '-I $(srcdir)';
3248 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3251 # A directory can contain two kinds of info files: some built in the
3252 # source tree, and some built in the build tree. The rules are
3253 # different in each case. However we cannot output two different
3254 # set of generic rules. Because in-source builds are more usual, we
3255 # use generic rules in this case and fall back to "specific" rules
3256 # for build-dir builds. (It should not be a problem to invert this
3258 $generic = 0 unless $insrc;
3260 # We cannot use a suffix rule to build info files with an empty
3261 # extension. Otherwise we would output a single suffix inference
3262 # rule, with separate dependencies, as in
3266 # foo.info: foo.texi
3268 # which confuse Solaris make. (See the Autoconf manual for
3269 # details.) Therefore we use a specific rule in this case. This
3270 # applies to info files only (dvi and pdf files always have an
3272 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3274 # If the resulting file lie into a subdirectory,
3275 # make sure this directory will exist.
3276 my $dirstamp = require_build_directory_maybe ($dest);
3278 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3280 $output_rules .= file_contents ('texibuild',
3281 new Automake::Location,
3283 DEST_PREFIX => $dpfx,
3284 DEST_INFO_PREFIX => $dipfx,
3285 DEST_SUFFIX => $dsfx,
3286 DIRSTAMP => $dirstamp,
3287 GENERIC => $generic,
3288 GENERIC_INFO => $generic_info,
3290 MAKEINFOFLAGS => $makeinfoflags,
3293 SOURCE_INFO => ($generic_info
3295 SOURCE_REAL => $source,
3296 SOURCE_SUFFIX => $ssfx,
3298 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3302 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3303 # handle_texinfo_helper ($info_texinfos)
3304 # --------------------------------------
3305 # Handle all Texinfo source; helper for handle_texinfo.
3306 sub handle_texinfo_helper ($)
3308 my ($info_texinfos) = @_;
3309 my (@infobase, @info_deps_list, @texi_deps);
3312 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3314 # Build a regex matching user-cleaned files.
3315 my $d = var 'DISTCLEANFILES';
3316 my $c = var 'CLEANFILES';
3318 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3319 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3320 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3321 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3324 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3326 my $infobase = $texi;
3327 $infobase =~ s/\.(txi|texinfo|texi)$//;
3329 if ($infobase eq $texi)
3331 # FIXME: report line number.
3332 err_am "texinfo file `$texi' has unrecognized extension";
3336 push @infobase, $infobase;
3338 # If 'version.texi' is referenced by input file, then include
3339 # automatic versioning capability.
3340 my ($out_file, $vtexi, @clean_files) =
3341 scan_texinfo_file ("$relative_dir/$texi")
3343 push (@mostly_cleans, @clean_files);
3345 # If the Texinfo source is in a subdirectory, create the
3346 # resulting info in this subdirectory. If it is in the current
3347 # directory, try hard to not prefix "./" because it breaks the
3349 my $outdir = dirname ($texi) . '/';
3350 $outdir = "" if $outdir eq './';
3351 $out_file = $outdir . $out_file;
3353 # Until Automake 1.6.3, .info files were built in the
3354 # source tree. This was an obstacle to the support of
3355 # non-distributed .info files, and non-distributed .texi
3358 # * Non-distributed .texi files is important in some packages
3359 # where .texi files are built at make time, probably using
3360 # other binaries built in the package itself, maybe using
3361 # tools or information found on the build host. Because
3362 # these files are not distributed they are always rebuilt
3363 # at make time; they should therefore not lie in the source
3364 # directory. One plan was to support this using
3365 # nodist_info_TEXINFOS or something similar. (Doing this
3366 # requires some sanity checks. For instance Automake should
3368 # dist_info_TEXINFOS = foo.texi
3369 # nodist_foo_TEXINFOS = included.texi
3370 # because a distributed file should never depend on a
3371 # non-distributed file.)
3373 # * If .texi files are not distributed, then .info files should
3374 # not be distributed either. There are also cases where one
3375 # wants to distribute .texi files, but does not want to
3376 # distribute the .info files. For instance the Texinfo package
3377 # distributes the tool used to build these files; it would
3378 # be a waste of space to distribute them. It's not clear
3379 # which syntax we should use to indicate that .info files should
3380 # not be distributed. Akim Demaille suggested that eventually
3381 # we switch to a new syntax:
3382 # | Maybe we should take some inspiration from what's already
3383 # | done in the rest of Automake. Maybe there is too much
3384 # | syntactic sugar here, and you want
3385 # | nodist_INFO = bar.info
3386 # | dist_bar_info_SOURCES = bar.texi
3387 # | bar_texi_DEPENDENCIES = foo.texi
3388 # | with a bit of magic to have bar.info represent the whole
3389 # | bar*info set. That's a lot more verbose that the current
3390 # | situation, but it is # not new, hence the user has less
3393 # | But there is still too much room for meaningless specs:
3394 # | nodist_INFO = bar.info
3395 # | dist_bar_info_SOURCES = bar.texi
3396 # | dist_PS = bar.ps something-written-by-hand.ps
3397 # | nodist_bar_ps_SOURCES = bar.texi
3398 # | bar_texi_DEPENDENCIES = foo.texi
3399 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3401 # Back to the point, it should be clear that in order to support
3402 # non-distributed .info files, we need to build them in the
3403 # build tree, not in the source tree (non-distributed .texi
3404 # files are less of a problem, because we do not output build
3405 # rules for them). In Automake 1.7 .info build rules have been
3406 # largely cleaned up so that .info files get always build in the
3407 # build tree, even when distributed. The idea was that
3408 # (1) if during a VPATH build the .info file was found to be
3409 # absent or out-of-date (in the source tree or in the
3410 # build tree), Make would rebuild it in the build tree.
3411 # If an up-to-date source-tree of the .info file existed,
3412 # make would not rebuild it in the build tree.
3413 # (2) having two copies of .info files, one in the source tree
3414 # and one (newer) in the build tree is not a problem
3415 # because `make dist' always pick files in the build tree
3417 # However it turned out the be a bad idea for several reasons:
3418 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3419 # like GNU Make on point (1) above. These implementations
3420 # of Make would always rebuild .info files in the build
3421 # tree, even if such files were up to date in the source
3422 # tree. Consequently, it was impossible to perform a VPATH
3423 # build of a package containing Texinfo files using these
3424 # Make implementations.
3425 # (Refer to the Autoconf Manual, section "Limitation of
3426 # Make", paragraph "VPATH", item "target lookup", for
3427 # an account of the differences between these
3429 # * The GNU Coding Standards require these files to be built
3430 # in the source-tree (when they are distributed, that is).
3431 # * Keeping a fresher copy of distributed files in the
3432 # build tree can be annoying during development because
3433 # - if the files is kept under CVS, you really want it
3434 # to be updated in the source tree
3435 # - it is confusing that `make distclean' does not erase
3436 # all files in the build tree.
3438 # Consequently, starting with Automake 1.8, .info files are
3439 # built in the source tree again. Because we still plan to
3440 # support non-distributed .info files at some point, we
3441 # have a single variable ($INSRC) that controls whether
3442 # the current .info file must be built in the source tree
3443 # or in the build tree. Actually this variable is switched
3444 # off for .info files that appear to be cleaned; this is
3445 # for backward compatibility with package such as Texinfo,
3446 # which do things like
3447 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3448 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3449 # # Do not create info files for distribution.
3451 # in order not to distribute .info files.
3452 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3454 my $soutdir = '$(srcdir)/' . $outdir;
3455 $outdir = $soutdir if $insrc;
3457 # If user specified file_TEXINFOS, then use that as explicit
3460 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3462 my $canonical = canonicalize ($infobase);
3463 if (var ($canonical . "_TEXINFOS"))
3465 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3466 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3469 my ($dirstamp, @cfiles) =
3470 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3471 push (@texi_cleans, @cfiles);
3473 push (@info_deps_list, $out_file);
3475 # If a vers*.texi file is needed, emit the rule.
3478 err_am ("`$vtexi', included in `$texi', "
3479 . "also included in `$versions{$vtexi}'")
3480 if defined $versions{$vtexi};
3481 $versions{$vtexi} = $texi;
3483 # We number the stamp-vti files. This is doable since the
3484 # actual names don't matter much. We only number starting
3485 # with the second one, so that the common case looks nice.
3486 my $vti = ($done ? $done : 'vti');
3489 # This is ugly, but it is our historical practice.
3490 if ($config_aux_dir_set_in_configure_ac)
3492 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3497 require_file_with_macro (TRUE, 'info_TEXINFOS',
3498 FOREIGN, 'mdate-sh');
3502 if ($config_aux_dir_set_in_configure_ac)
3504 $conf_dir = "$am_config_aux_dir/";
3508 $conf_dir = '$(srcdir)/';
3510 $output_rules .= file_contents ('texi-vers',
3511 new Automake::Location,
3514 STAMPVTI => "${soutdir}stamp-$vti",
3515 VTEXI => "$soutdir$vtexi",
3517 DIRSTAMP => $dirstamp);
3521 # Handle location of texinfo.tex.
3522 my $need_texi_file = 0;
3524 if (var ('TEXINFO_TEX'))
3526 # The user defined TEXINFO_TEX so assume he knows what he is
3528 $texinfodir = ('$(srcdir)/'
3529 . dirname (variable_value ('TEXINFO_TEX')));
3531 elsif (option 'cygnus')
3533 $texinfodir = '$(top_srcdir)/../texinfo';
3534 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3536 elsif ($config_aux_dir_set_in_configure_ac)
3538 $texinfodir = $am_config_aux_dir;
3539 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3540 $need_texi_file = 2; # so that we require_conf_file later
3544 $texinfodir = '$(srcdir)';
3545 $need_texi_file = 1;
3547 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3549 push (@dist_targets, 'dist-info');
3551 if (! option 'no-installinfo')
3553 # Make sure documentation is made and installed first. Use
3554 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3555 # get run twice during "make all".
3556 unshift (@all, '$(INFO_DEPS)');
3559 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3560 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3561 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3562 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3564 # This next isn't strictly needed now -- the places that look here
3565 # could easily be changed to look in info_TEXINFOS. But this is
3566 # probably better, in case noinst_TEXINFOS is ever supported.
3567 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3569 # Do some error checking. Note that this file is not required
3570 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3572 if ($need_texi_file && ! option 'no-texinfo.tex')
3574 if ($need_texi_file > 1)
3576 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3581 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3586 return (makefile_wrap ("", "\t ", @mostly_cleans),
3587 makefile_wrap ("", "\t ", @texi_cleans),
3588 makefile_wrap ("", "\t ", @maint_cleans));
3594 # Handle all Texinfo source.
3595 sub handle_texinfo ()
3597 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3598 # FIXME: I think this is an obsolete future feature name.
3599 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3601 my $info_texinfos = var ('info_TEXINFOS');
3602 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3605 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3611 $output_rules .= file_contents ('texinfos',
3612 new Automake::Location,
3613 MOSTLYCLEAN => $mostlyclean,
3614 TEXICLEAN => $clean,
3615 MAINTCLEAN => $maintclean,
3616 'LOCAL-TEXIS' => !!$info_texinfos);
3620 # Handle any man pages.
3621 sub handle_man_pages
3623 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3625 # Find all the sections in use. We do this by first looking for
3626 # "standard" sections, and then looking for any additional
3627 # sections used in man_MANS.
3628 my (%sections, %notrans_sections, %trans_sections,
3629 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3630 # We handle nodist_ for uniformity. man pages aren't distributed
3631 # by default so it isn't actually very important.
3632 foreach my $npfx ('', 'notrans_')
3634 foreach my $pfx ('', 'dist_', 'nodist_')
3636 # Add more sections as needed.
3637 foreach my $section ('0'..'9', 'n', 'l')
3639 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3642 $sections{$section} = 1;
3643 $varname = '$(' . $varname . ')';
3644 if ($npfx eq 'notrans_')
3646 $notrans_sections{$section} = 1;
3647 $notrans_sect_vars{$varname} = 1;
3651 $trans_sections{$section} = 1;
3652 $trans_sect_vars{$varname} = 1;
3655 &push_dist_common ($varname)
3660 my $varname = $npfx . $pfx . 'man_MANS';
3661 my $var = var ($varname);
3664 foreach ($var->value_as_list_recursive)
3666 # A page like `foo.1c' goes into man1dir.
3667 if (/\.([0-9a-z])([a-z]*)$/)
3670 if ($npfx eq 'notrans_')
3672 $notrans_sections{$1} = 1;
3676 $trans_sections{$1} = 1;
3681 $varname = '$(' . $varname . ')';
3682 if ($npfx eq 'notrans_')
3684 $notrans_vars{$varname} = 1;
3688 $trans_vars{$varname} = 1;
3690 &push_dist_common ($varname)
3696 return unless %sections;
3700 # Build section independent variables.
3701 my $have_notrans = %notrans_vars;
3702 my @notrans_list = sort keys %notrans_vars;
3703 my $have_trans = %trans_vars;
3704 my @trans_list = sort keys %trans_vars;
3706 # Now for each section, generate an install and uninstall rule.
3707 # Sort sections so output is deterministic.
3708 foreach my $section (sort keys %sections)
3710 # Build section dependent variables.
3711 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3712 my $trans_mans = $have_trans || exists $trans_sections{$section};
3713 my (%notrans_this_sect, %trans_this_sect);
3714 my $expr = 'man' . $section . '_MANS';
3715 foreach my $varname (keys %notrans_sect_vars)
3717 if ($varname =~ /$expr/)
3719 $notrans_this_sect{$varname} = 1;
3722 foreach my $varname (keys %trans_sect_vars)
3724 if ($varname =~ /$expr/)
3726 $trans_this_sect{$varname} = 1;
3729 my @notrans_sect_list = sort keys %notrans_this_sect;
3730 my @trans_sect_list = sort keys %trans_this_sect;
3731 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3732 keys %notrans_this_sect, keys %trans_this_sect);
3733 my @deps = sort @unsorted_deps;
3734 $output_rules .= &file_contents ('mans',
3735 new Automake::Location,
3736 SECTION => $section,
3738 NOTRANS_MANS => $notrans_mans,
3739 NOTRANS_SECT_LIST => "@notrans_sect_list",
3740 HAVE_NOTRANS => $have_notrans,
3741 NOTRANS_LIST => "@notrans_list",
3742 TRANS_MANS => $trans_mans,
3743 TRANS_SECT_LIST => "@trans_sect_list",
3744 HAVE_TRANS => $have_trans,
3745 TRANS_LIST => "@trans_list");
3748 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3749 keys %notrans_sect_vars, keys %trans_sect_vars);
3750 my @mans = sort @unsorted_deps;
3751 $output_vars .= file_contents ('mans-vars',
3752 new Automake::Location,
3755 push (@all, '$(MANS)')
3756 unless option 'no-installman';
3759 # Handle DATA variables.
3762 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3763 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3764 'ps', 'sysconf', 'sharedstate', 'localstate',
3765 'pkgdata', 'lisp', 'noinst', 'check');
3773 if (var ('SUBDIRS'))
3775 $output_rules .= ("tags-recursive:\n"
3776 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3777 # Never fail here if a subdir fails; it
3779 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3780 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3782 push (@tag_deps, 'tags-recursive');
3783 &depend ('.PHONY', 'tags-recursive');
3784 &depend ('.MAKE', 'tags-recursive');
3786 $output_rules .= ("ctags-recursive:\n"
3787 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3788 # Never fail here if a subdir fails; it
3790 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3791 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3793 push (@ctag_deps, 'ctags-recursive');
3794 &depend ('.PHONY', 'ctags-recursive');
3795 &depend ('.MAKE', 'ctags-recursive');
3798 if (&saw_sources_p (1)
3799 || var ('ETAGS_ARGS')
3803 foreach my $spec (@config_headers)
3805 my ($out, @ins) = split_config_file_spec ($spec);
3806 foreach my $in (@ins)
3808 # If the config header source is in this directory,
3810 push @config, basename ($in)
3811 if $relative_dir eq dirname ($in);
3814 $output_rules .= &file_contents ('tags',
3815 new Automake::Location,
3816 CONFIG => "@config",
3817 TAGSDIRS => "@tag_deps",
3818 CTAGSDIRS => "@ctag_deps");
3820 set_seen 'TAGS_DEPENDENCIES';
3822 elsif (reject_var ('TAGS_DEPENDENCIES',
3823 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3824 . "without\nsources or `ETAGS_ARGS'"))
3829 # Every Makefile must define some sort of TAGS rule.
3830 # Otherwise, it would be possible for a top-level "make TAGS"
3831 # to fail because some subdirectory failed.
3832 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3834 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3838 # Handle multilib support.
3841 if ($seen_multilib && $relative_dir eq '.')
3843 $output_rules .= &file_contents ('multilib', new Automake::Location);
3844 push (@all, 'all-multi');
3849 # user_phony_rule ($NAME)
3850 # -----------------------
3851 # Return false if rule $NAME does not exist. Otherwise,
3852 # declare it as phony, complete its definition (in case it is
3853 # conditional), and return its Automake::Rule instance.
3854 sub user_phony_rule ($)
3857 my $rule = rule $name;
3860 depend ('.PHONY', $name);
3861 # Define $NAME in all condition where it is not already defined,
3862 # so that it is always OK to depend on $NAME.
3863 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3865 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3867 $output_rules .= $c->subst_string . "$name:\n";
3875 # &for_dist_common ($A, $B)
3876 # -------------------------
3877 # Subroutine for &handle_dist: sort files to dist.
3879 # We put README first because it then becomes easier to make a
3880 # Usenet-compliant shar file (in these, README must be first).
3882 # FIXME: do more ordering of files here.
3896 # Handle 'dist' target.
3899 # Substitutions for distdir.am
3902 # Define DIST_SUBDIRS. This must always be done, regardless of the
3903 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3904 my $subdirs = var ('SUBDIRS');
3907 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3908 # to all possible directories, and use it. If DIST_SUBDIRS is
3909 # defined, just use it.
3911 # Note that we check DIST_SUBDIRS first on purpose, so that
3912 # we don't call has_conditional_contents for now reason.
3913 # (In the past one project used so many conditional subdirectories
3914 # that calling has_conditional_contents on SUBDIRS caused
3915 # automake to grow to 150Mb -- this should not happen with
3916 # the current implementation of has_conditional_contents,
3917 # but it's more efficient to avoid the call anyway.)
3918 if (var ('DIST_SUBDIRS'))
3921 elsif ($subdirs->has_conditional_contents)
3923 define_pretty_variable
3924 ('DIST_SUBDIRS', TRUE, INTERNAL,
3925 uniq ($subdirs->value_as_list_recursive));
3929 # We always define this because that is what `distclean'
3931 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3936 # The remaining definitions are only required when a dist target is used.
3937 return if option 'no-dist';
3939 # At least one of the archive formats must be enabled.
3940 if ($relative_dir eq '.')
3942 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3943 $archive_defined ||=
3944 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3945 error (option 'no-dist-gzip',
3946 "no-dist-gzip specified but no dist-* specified, "
3947 . "at least one archive format must be enabled")
3948 unless $archive_defined;
3951 # Look for common files that should be included in distribution.
3952 # If the aux dir is set, and it does not have a Makefile.am, then
3953 # we check for these files there as well.
3955 if ($relative_dir eq '.'
3956 && $config_aux_dir_set_in_configure_ac)
3958 if (! &is_make_dir ($config_aux_dir))
3963 foreach my $cfile (@common_files)
3965 if (dir_has_case_matching_file ($relative_dir, $cfile)
3966 # The file might be absent, but if it can be built it's ok.
3969 &push_dist_common ($cfile);
3972 # Don't use `elsif' here because a file might meaningfully
3973 # appear in both directories.
3974 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3976 &push_dist_common ("$config_aux_dir/$cfile")
3980 # We might copy elements from $configure_dist_common to
3981 # %dist_common if we think we need to. If the file appears in our
3982 # directory, we would have discovered it already, so we don't
3983 # check that. But if the file is in a subdir without a Makefile,
3984 # we want to distribute it here if we are doing `.'. Ugly!
3985 if ($relative_dir eq '.')
3987 foreach my $file (split (' ' , $configure_dist_common))
3989 push_dist_common ($file)
3990 unless is_make_dir (dirname ($file));
3994 # Files to distributed. Don't use ->value_as_list_recursive
3995 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3996 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3997 @dist_common = uniq (sort for_dist_common (@dist_common));
3998 variable_delete 'DIST_COMMON';
3999 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
4001 # Now that we've processed DIST_COMMON, disallow further attempts
4003 $handle_dist_run = 1;
4005 # Scan EXTRA_DIST to see if we need to distribute anything from a
4006 # subdir. If so, add it to the list. I didn't want to do this
4007 # originally, but there were so many requests that I finally
4009 my $extra_dist = var ('EXTRA_DIST');
4011 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
4012 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
4014 # If the target `dist-hook' exists, make sure it is run. This
4015 # allows users to do random weird things to the distribution
4016 # before it is packaged up.
4017 push (@dist_targets, 'dist-hook')
4018 if user_phony_rule 'dist-hook';
4019 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
4021 my $flm = option ('filename-length-max');
4022 my $filename_filter = $flm ? '.' x $flm->[1] : '';
4024 $output_rules .= &file_contents ('distdir',
4025 new Automake::Location,
4027 FILENAME_FILTER => $filename_filter);
4031 # check_directory ($NAME, $WHERE)
4032 # -------------------------------
4033 # Ensure $NAME is a directory, and that it uses a sane name.
4034 # Use $WHERE as a location in the diagnostic, if any.
4035 sub check_directory ($$)
4037 my ($dir, $where) = @_;
4039 error $where, "required directory $relative_dir/$dir does not exist"
4040 unless -d "$relative_dir/$dir";
4042 # If an `obj/' directory exists, BSD make will enter it before
4043 # reading `Makefile'. Hence the `Makefile' in the current directory
4049 # % cat obj/Makefile
4055 # % pmake # BSD make
4058 msg ('portability', $where,
4059 "naming a subdirectory `obj' causes troubles with BSD make")
4062 # `aux' is probably the most important of the following forbidden name,
4063 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4064 msg ('portability', $where,
4065 "name `$dir' is reserved on W32 and DOS platforms")
4066 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4069 # check_directories_in_var ($VARIABLE)
4070 # ------------------------------------
4071 # Recursively check all items in variables $VARIABLE as directories
4072 sub check_directories_in_var ($)
4075 $var->traverse_recursively
4078 my ($var, $val, $cond, $full_cond) = @_;
4079 check_directory ($val, $var->rdef ($cond)->location);
4083 skip_ac_subst => 1);
4086 # &handle_subdirs ()
4087 # ------------------
4088 # Handle subdirectories.
4089 sub handle_subdirs ()
4091 my $subdirs = var ('SUBDIRS');
4095 check_directories_in_var $subdirs;
4097 my $dsubdirs = var ('DIST_SUBDIRS');
4098 check_directories_in_var $dsubdirs
4101 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4102 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4106 # ($REGEN, @DEPENDENCIES)
4109 # If aclocal.m4 creation is automated, return the list of its dependencies.
4110 sub scan_aclocal_m4 ()
4112 my $regen_aclocal = 0;
4114 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4115 set_seen 'CONFIGURE_DEPENDENCIES';
4117 if (-f 'aclocal.m4')
4119 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4121 my $aclocal = new Automake::XFile "< aclocal.m4";
4122 my $line = $aclocal->getline;
4123 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4128 if (set_seen ('ACLOCAL_M4_SOURCES'))
4130 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4131 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4132 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4133 . "It should be safe to simply remove it.");
4136 # Note that it might be possible that aclocal.m4 doesn't exist but
4137 # should be auto-generated. This case probably isn't very
4140 return ($regen_aclocal, @ac_deps);
4144 # Helper function for substitute_ac_subst_variables.
4145 sub substitute_ac_subst_variables_worker($)
4148 return "\@$token\@" if var $token;
4149 return "\${$token\}";
4152 # substitute_ac_subst_variables ($TEXT)
4153 # -------------------------------------
4154 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4156 sub substitute_ac_subst_variables ($)
4159 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4164 # &prepend_srcdir (@INPUTS)
4165 # -------------------------
4166 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4167 # if an input file has a directory part the same as the current
4168 # directory, then the directory part is simply replaced by $(srcdir).
4169 # But if the directory part is different, then $(top_srcdir) is
4171 sub prepend_srcdir (@)
4176 foreach my $single (@inputs)
4178 if (dirname ($single) eq $relative_dir)
4180 push (@newinputs, '$(srcdir)/' . basename ($single));
4184 push (@newinputs, '$(top_srcdir)/' . $single);
4191 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4192 # ---------------------------------------------------
4193 # Compute a list of dependencies appropriate for the rebuild
4195 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4196 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4197 sub rewrite_inputs_into_dependencies ($@)
4199 my ($file, @inputs) = @_;
4204 # We cannot create dependencies on shell variables.
4205 next if (substitute_ac_subst_variables $i) =~ /\$/;
4207 if (exists $ac_config_files_location{$i} && $i ne $file)
4209 my $di = dirname $i;
4210 if ($di eq $relative_dir)
4214 # In the top-level Makefile we do not use $(top_builddir), because
4215 # we are already there, and since the targets are built without
4216 # a $(top_builddir), it helps BSD Make to match them with
4218 elsif ($relative_dir ne '.')
4220 $i = '$(top_builddir)/' . $i;
4225 msg ('error', $ac_config_files_location{$file},
4226 "required file `$i' not found")
4227 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4228 ($i) = prepend_srcdir ($i);
4229 push_dist_common ($i);
4238 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4239 # ------------------------------------------------------------------
4240 # Handle remaking and configure stuff.
4241 # We need the name of the input file, to do proper remaking rules.
4242 sub handle_configure ($$$@)
4244 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4246 prog_error 'empty @inputs'
4249 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4251 my $rel_makefile = basename $makefile;
4253 my $colon_infile = ':' . join (':', @inputs);
4254 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4255 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4256 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4257 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4258 @configure_deps, @aclocal_m4_deps,
4259 '$(top_srcdir)/' . $configure_ac);
4260 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4261 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4262 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4265 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4266 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4268 $output_rules .= file_contents
4270 new Automake::Location,
4271 MAKEFILE => $rel_makefile,
4272 'MAKEFILE-DEPS' => "@rewritten",
4273 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4274 'MAKEFILE-IN' => $rel_makefile_in,
4275 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4276 'MAKEFILE-IN-DEPS' => "@include_stack",
4277 'MAKEFILE-AM' => $rel_makefile_am,
4278 'AUTOMAKE-OPTIONS' => $automake_options,
4279 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4280 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4281 VERBOSE => verbose_flag ('GEN'));
4283 if ($relative_dir eq '.')
4285 &push_dist_common ('acconfig.h')
4289 # If we have a configure header, require it.
4291 my @distclean_config;
4292 foreach my $spec (@config_headers)
4295 # $CONFIG_H_PATH: config.h from top level.
4296 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4297 my $config_h_dir = dirname ($config_h_path);
4299 # If the header is in the current directory we want to build
4300 # the header here. Otherwise, if we're at the topmost
4301 # directory and the header's directory doesn't have a
4302 # Makefile, then we also want to build the header.
4303 if ($relative_dir eq $config_h_dir
4304 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4306 my ($cn_sans_dir, $stamp_dir);
4307 if ($relative_dir eq $config_h_dir)
4309 $cn_sans_dir = basename ($config_h_path);
4314 $cn_sans_dir = $config_h_path;
4315 if ($config_h_dir eq '.')
4321 $stamp_dir = $config_h_dir . '/';
4325 # This will also distribute all inputs.
4326 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4328 # Cannot define rebuild rules for filenames with shell variables.
4329 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4331 # Header defined in this directory.
4333 if (-f $config_h_path . '.top')
4335 push (@files, "$cn_sans_dir.top");
4337 if (-f $config_h_path . '.bot')
4339 push (@files, "$cn_sans_dir.bot");
4342 push_dist_common (@files);
4344 # For now, acconfig.h can only appear in the top srcdir.
4345 if (-f 'acconfig.h')
4347 push (@files, '$(top_srcdir)/acconfig.h');
4350 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4352 file_contents ('remake-hdr',
4353 new Automake::Location,
4355 CONFIG_H => $cn_sans_dir,
4356 CONFIG_HIN => $ins[0],
4357 CONFIG_H_DEPS => "@ins",
4358 CONFIG_H_PATH => $config_h_path,
4361 push @distclean_config, $cn_sans_dir, $stamp;
4365 $output_rules .= file_contents ('clean-hdr',
4366 new Automake::Location,
4367 FILES => "@distclean_config")
4368 if @distclean_config;
4370 # Distribute and define mkinstalldirs only if it is already present
4371 # in the package, for backward compatibility (some people may still
4372 # use $(mkinstalldirs)).
4373 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4376 # Use require_file so that any existing script gets updated
4377 # by --force-missing.
4378 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4379 define_variable ('mkinstalldirs',
4380 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4384 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4385 # at least one argument, and $(mkinstalldirs) used to work
4386 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4387 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4390 reject_var ('CONFIG_HEADER',
4391 "`CONFIG_HEADER' is an anachronism; now determined "
4392 . "automatically\nfrom `$configure_ac'");
4395 foreach my $spec (@config_headers)
4397 my ($out, @ins) = split_config_file_spec ($spec);
4398 # Generate CONFIG_HEADER define.
4399 if ($relative_dir eq dirname ($out))
4401 push @config_h, basename ($out);
4405 push @config_h, "\$(top_builddir)/$out";
4408 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4411 # Now look for other files in this directory which must be remade
4412 # by config.status, and generate rules for them.
4413 my @actual_other_files = ();
4414 # These get cleaned only in a VPATH build.
4415 my @actual_other_vpath_files = ();
4416 foreach my $lfile (@other_input_files)
4420 if ($lfile =~ /^([^:]*):(.*)$/)
4422 # This is the ":" syntax of AC_OUTPUT.
4424 @inputs = split (':', $2);
4430 @inputs = $file . '.in';
4433 # Automake files should not be stored in here, but in %MAKE_LIST.
4434 prog_error ("$lfile in \@other_input_files\n"
4435 . "\@other_input_files = (@other_input_files)")
4436 if -f $file . '.am';
4438 my $local = basename ($file);
4440 # We skip files that aren't in this directory. However, if
4441 # the file's directory does not have a Makefile, and we are
4442 # currently doing `.', then we create a rule to rebuild the
4443 # file in the subdir.
4444 my $fd = dirname ($file);
4445 if ($fd ne $relative_dir)
4447 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4457 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4459 # Cannot output rules for shell variables.
4460 next if (substitute_ac_subst_variables $local) =~ /\$/;
4463 my $cond = $ac_config_files_condition{$lfile};
4466 $condstr = $cond->subst_string;
4467 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4468 $ac_config_files_location{$file});
4470 $output_rules .= ($condstr . $local . ': '
4471 . '$(top_builddir)/config.status '
4472 . "@rewritten_inputs\n"
4474 . 'cd $(top_builddir) && '
4475 . '$(SHELL) ./config.status '
4476 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4479 push (@actual_other_files, $local);
4482 # For links we should clean destinations and distribute sources.
4483 foreach my $spec (@config_links)
4485 my ($link, $file) = split /:/, $spec;
4486 # Some people do AC_CONFIG_LINKS($computed). We only handle
4487 # the DEST:SRC form.
4489 my $where = $ac_config_files_location{$link};
4491 # Skip destinations that contain shell variables.
4492 if ((substitute_ac_subst_variables $link) !~ /\$/)
4494 # We skip links that aren't in this directory. However, if
4495 # the link's directory does not have a Makefile, and we are
4496 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4497 # in `.'s Makefile.in.
4498 my $local = basename ($link);
4499 my $fd = dirname ($link);
4500 if ($fd ne $relative_dir)
4502 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4513 push @actual_other_files, $local if $local;
4517 push @actual_other_vpath_files, $local if $local;
4521 # Do not process sources that contain shell variables.
4522 if ((substitute_ac_subst_variables $file) !~ /\$/)
4524 my $fd = dirname ($file);
4526 # We distribute files that are in this directory.
4527 # At the top-level (`.') we also distribute files whose
4528 # directory does not have a Makefile.
4529 if (($fd eq $relative_dir)
4530 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4532 # The following will distribute $file as a side-effect when
4533 # it is appropriate (i.e., when $file is not already an output).
4534 # We do not need the result, just the side-effect.
4535 rewrite_inputs_into_dependencies ($link, $file);
4540 # These files get removed by "make distclean".
4541 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4542 @actual_other_files);
4543 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4544 @actual_other_vpath_files);
4550 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4551 'oldinclude', 'pkginclude',
4555 next unless $_->[1] =~ /\..*$/;
4556 &saw_extension ($&);
4562 return if ! $seen_gettext || $relative_dir ne '.';
4564 my $subdirs = var 'SUBDIRS';
4568 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4572 # Perform some sanity checks to help users get the right setup.
4573 # We disable these tests when po/ doesn't exist in order not to disallow
4574 # unusual gettext setups.
4579 # | 1) If a package doesn't have a directory po/ at top level, it
4580 # | will likely have multiple po/ directories in subpackages.
4582 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4583 # | is used without 'external'. It is also useful to warn for the
4584 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4585 # | warnings apply only to the usual layout of packages, therefore
4586 # | they should both be disabled if no po/ directory is found at
4591 my @subdirs = $subdirs->value_as_list_recursive;
4593 msg_var ('syntax', $subdirs,
4594 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4595 if ! grep ($_ eq 'po', @subdirs);
4597 # intl/ is not required when AM_GNU_GETTEXT is called with the
4598 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4599 msg_var ('syntax', $subdirs,
4600 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4601 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4602 && ! grep ($_ eq 'intl', @subdirs));
4604 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4605 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4606 msg_var ('syntax', $subdirs,
4607 "`intl' should not be in SUBDIRS when "
4608 . "AM_GNU_GETTEXT([external]) is used")
4609 if ($seen_gettext_external && ! $seen_gettext_intl
4610 && grep ($_ eq 'intl', @subdirs));
4613 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4616 # Handle footer elements.
4619 reject_rule ('.SUFFIXES',
4620 "use variable `SUFFIXES', not target `.SUFFIXES'");
4622 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4623 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4624 # anything else, by sticking it right after the default: target.
4625 $output_header .= ".SUFFIXES:\n";
4626 my $suffixes = var 'SUFFIXES';
4627 my @suffixes = Automake::Rule::suffixes;
4628 if (@suffixes || $suffixes)
4630 # Make sure SUFFIXES has unique elements. Sort them to ensure
4631 # the output remains consistent. However, $(SUFFIXES) is
4632 # always at the start of the list, unsorted. This is done
4633 # because make will choose rules depending on the ordering of
4634 # suffixes, and this lets the user have some control. Push
4635 # actual suffixes, and not $(SUFFIXES). Some versions of make
4636 # do not like variable substitutions on the .SUFFIXES line.
4637 my @user_suffixes = ($suffixes
4638 ? $suffixes->value_as_list_recursive : ());
4640 my %suffixes = map { $_ => 1 } @suffixes;
4641 delete @suffixes{@user_suffixes};
4643 $output_header .= (".SUFFIXES: "
4644 . join (' ', @user_suffixes, sort keys %suffixes)
4648 $output_trailer .= file_contents ('footer', new Automake::Location);
4652 # Generate `make install' rules.
4653 sub handle_install ()
4655 $output_rules .= &file_contents
4657 new Automake::Location,
4658 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4659 ? (" \$(BUILT_SOURCES)\n"
4660 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4662 'installdirs-local' => (user_phony_rule 'installdirs-local'
4663 ? ' installdirs-local' : ''),
4664 am__installdirs => variable_value ('am__installdirs') || '');
4668 # Deal with all and all-am.
4671 my ($makefile) = @_;
4675 # Put this at the beginning for the sake of non-GNU makes. This
4676 # is still wrong if these makes can run parallel jobs. But it is
4678 unshift (@all, basename ($makefile));
4680 foreach my $spec (@config_headers)
4682 my ($out, @ins) = split_config_file_spec ($spec);
4683 push (@all, basename ($out))
4684 if dirname ($out) eq $relative_dir;
4687 # Install `all' hooks.
4688 push (@all, "all-local")
4689 if user_phony_rule "all-local";
4691 &pretty_print_rule ("all-am:", "\t\t", @all);
4692 &depend ('.PHONY', 'all-am', 'all');
4697 my @local_headers = ();
4698 push @local_headers, '$(BUILT_SOURCES)'
4699 if var ('BUILT_SOURCES');
4700 foreach my $spec (@config_headers)
4702 my ($out, @ins) = split_config_file_spec ($spec);
4703 push @local_headers, basename ($out)
4704 if dirname ($out) eq $relative_dir;
4709 # We need to make sure config.h is built before we recurse.
4710 # We also want to make sure that built sources are built
4711 # before any ordinary `all' targets are run. We can't do this
4712 # by changing the order of dependencies to the "all" because
4713 # that breaks when using parallel makes. Instead we handle
4714 # things explicitly.
4715 $output_all .= ("all: @local_headers"
4717 . '$(MAKE) $(AM_MAKEFLAGS) '
4718 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4720 depend ('.MAKE', 'all');
4724 $output_all .= "all: " . (var ('SUBDIRS')
4725 ? 'all-recursive' : 'all-am') . "\n\n";
4730 # &do_check_merge_target ()
4731 # -------------------------
4732 # Handle check merge target specially.
4733 sub do_check_merge_target ()
4735 # Include user-defined local form of target.
4736 push @check_tests, 'check-local'
4737 if user_phony_rule 'check-local';
4739 # In --cygnus mode, check doesn't depend on all.
4740 if (option 'cygnus')
4742 # Just run the local check rules.
4743 pretty_print_rule ('check-am:', "\t\t", @check);
4747 # The check target must depend on the local equivalent of
4748 # `all', to ensure all the primary targets are built. Then it
4749 # must build the local check rules.
4750 $output_rules .= "check-am: all-am\n";
4753 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4755 depend ('.MAKE', 'check-am');
4760 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4762 depend ('.MAKE', 'check-am');
4765 depend '.PHONY', 'check', 'check-am';
4766 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4767 $output_rules .= ("check: "
4768 . (var ('BUILT_SOURCES')
4769 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4771 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4773 depend ('.MAKE', 'check')
4774 if var ('BUILT_SOURCES');
4777 # handle_clean ($MAKEFILE)
4778 # ------------------------
4779 # Handle all 'clean' targets.
4780 sub handle_clean ($)
4782 my ($makefile) = @_;
4784 # Clean the files listed in user variables if they exist.
4785 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4786 if var ('MOSTLYCLEANFILES');
4787 $clean_files{'$(CLEANFILES)'} = CLEAN
4788 if var ('CLEANFILES');
4789 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4790 if var ('DISTCLEANFILES');
4791 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4792 if var ('MAINTAINERCLEANFILES');
4794 # Built sources are automatically removed by maintainer-clean.
4795 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4796 if var ('BUILT_SOURCES');
4798 # Compute a list of "rm"s to run for each target.
4799 my %rms = (MOSTLY_CLEAN, [],
4802 MAINTAINER_CLEAN, []);
4804 foreach my $file (keys %clean_files)
4806 my $when = $clean_files{$file};
4807 prog_error 'invalid entry in %clean_files'
4808 unless exists $rms{$when};
4810 my $rm = "rm -f $file";
4811 # If file is a variable, make sure when don't call `rm -f' without args.
4812 $rm ="test -z \"$file\" || $rm"
4813 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4815 push @{$rms{$when}}, "\t-$rm\n";
4818 $output_rules .= &file_contents
4820 new Automake::Location,
4821 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4822 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4823 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4824 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4825 MAKEFILE => basename $makefile,
4830 # &target_cmp ($A, $B)
4831 # --------------------
4832 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4833 # other `.TARGETS' be last.
4836 return 0 if $a eq $b;
4838 my $a1 = substr ($a, 0, 1);
4839 my $b1 = substr ($b, 0, 1);
4842 return -1 if $b1 eq '.';
4843 return 1 if $a1 eq '.';
4849 # &handle_factored_dependencies ()
4850 # --------------------------------
4851 # Handle everything related to gathered targets.
4852 sub handle_factored_dependencies
4855 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4856 'uninstall-exec-local', 'uninstall-exec-hook',
4857 'uninstall-dvi-local',
4858 'uninstall-html-local',
4859 'uninstall-info-local',
4860 'uninstall-pdf-local',
4861 'uninstall-ps-local')
4865 reject_rule ($utarg, "use `$x', not `$utarg'");
4868 reject_rule ('install-local',
4869 "use `install-data-local' or `install-exec-local', "
4870 . "not `install-local'");
4872 reject_rule ('install-hook',
4873 "use `install-data-hook' or `install-exec-hook', "
4874 . "not `install-hook'");
4876 # Install the -local hooks.
4877 foreach (keys %dependencies)
4879 # Hooks are installed on the -am targets.
4881 depend ("$_-am", "$_-local")
4882 if user_phony_rule "$_-local";
4885 # Install the -hook hooks.
4886 # FIXME: Why not be as liberal as we are with -local hooks?
4887 foreach ('install-exec', 'install-data', 'uninstall')
4889 if (user_phony_rule "$_-hook")
4891 depend ('.MAKE', "$_-am");
4892 register_action("$_-am",
4893 ("\t\@\$(NORMAL_INSTALL)\n"
4894 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4898 # All the required targets are phony.
4899 depend ('.PHONY', keys %required_targets);
4901 # Actually output gathered targets.
4902 foreach (sort target_cmp keys %dependencies)
4904 # If there is nothing about this guy, skip it.
4906 unless (@{$dependencies{$_}}
4908 || $required_targets{$_});
4910 # Define gathered targets in undefined conditions.
4911 # FIXME: Right now we must handle .PHONY as an exception,
4912 # because people write things like
4913 # .PHONY: myphonytarget
4914 # to append dependencies. This would not work if Automake
4915 # refrained from defining its own .PHONY target as it does
4916 # with other overridden targets.
4917 # Likewise for `.MAKE'.
4918 my @undefined_conds = (TRUE,);
4919 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4922 Automake::Rule::define ($_, 'internal',
4923 RULE_AUTOMAKE, TRUE, INTERNAL);
4925 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4926 foreach my $cond (@undefined_conds)
4928 my $condstr = $cond->subst_string;
4929 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4930 $output_rules .= $actions{$_} if defined $actions{$_};
4931 $output_rules .= "\n";
4937 # &handle_tests_dejagnu ()
4938 # ------------------------
4939 sub handle_tests_dejagnu
4941 push (@check_tests, 'check-DEJAGNU');
4942 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4945 # is_valid_test_extension ($EXT)
4946 # ------------------------------
4947 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4949 sub is_valid_test_extension ($)
4953 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4955 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4959 # Handle TESTS variable and other checks.
4962 if (option 'dejagnu')
4964 &handle_tests_dejagnu;
4968 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4970 reject_var ($c, "`$c' defined but `dejagnu' not in "
4971 . "`AUTOMAKE_OPTIONS'");
4977 push (@check_tests, 'check-TESTS');
4978 my $check_deps = "@check";
4979 $output_rules .= &file_contents ('check', new Automake::Location,
4980 COLOR => !! option 'color-tests',
4981 PARALLEL_TESTS => !! option 'parallel-tests',
4982 CHECK_DEPS => $check_deps);
4984 # Tests that are known programs should have $(EXEEXT) appended.
4985 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4986 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4987 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4988 if (var ('XFAIL_TESTS'));
4990 if (option 'parallel-tests')
4992 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4995 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4998 $at_exeext = subst ('EXEEXT');
4999 $suff = $at_exeext . ' ' . $suff;
5001 if (! var 'TEST_EXTENSIONS')
5003 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
5005 my $var = var 'TEST_EXTENSIONS';
5006 # Currently, we are not able to deal with conditional contents
5007 # in TEST_EXTENSIONS.
5008 if ($var->has_conditional_contents)
5010 msg_var 'unsupported', $var,
5011 "`TEST_EXTENSIONS' cannot have conditional contents";
5013 my @test_suffixes = $var->value_as_list_recursive;
5014 if ((my @invalid_test_suffixes =
5015 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
5017 error $var->rdef (TRUE)->location,
5018 "invalid test extensions: @invalid_test_suffixes";
5020 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
5023 unshift (@test_suffixes, $at_exeext)
5024 unless $test_suffixes[0] eq $at_exeext;
5026 unshift (@test_suffixes, '');
5028 transform_variable_recursively
5029 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
5031 my ($subvar, $val, $cond, $full_cond) = @_;
5034 if $val =~ /^\@.*\@$/;
5035 $obj =~ s/\$\(EXEEXT\)$//o;
5037 if ($val =~ /(\$\((top_)?srcdir\))\//o)
5039 msg ('error', $subvar->rdef ($cond)->location,
5040 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
5043 foreach my $test_suffix (@test_suffixes)
5046 if $test_suffix eq $at_exeext || $test_suffix eq '';
5047 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
5048 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
5051 my $compile = 'LOG_COMPILE';
5052 define_variable ($compile,
5053 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
5054 $output_rules .= file_contents ('check2', new Automake::Location,
5058 COMPILE =>'$(' . $compile . ')',
5060 am__EXEEXT => 'FALSE');
5067 my $last_suffix = $test_suffixes[$#test_suffixes];
5069 foreach my $test_suffix (@test_suffixes)
5071 if ($test_suffix eq $last_suffix)
5077 $cur = 'am__test_logs' . $nhelper;
5079 define_variable ($cur,
5080 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5084 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5086 (my $ext = $test_suffix) =~ s/^\.//;
5088 my $compile = $ext . '_LOG_COMPILE';
5089 define_variable ($compile,
5090 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5091 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5092 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5093 $output_rules .= file_contents ('check2', new Automake::Location,
5097 COMPILE => '$(' . $compile . ')',
5098 EXT => $test_suffix,
5099 am__EXEEXT => $am_exeext);
5103 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5105 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5106 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5107 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5112 # Handle Emacs Lisp.
5113 sub handle_emacs_lisp
5115 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5118 return if ! @elfiles;
5120 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5121 map { $_->[1] } @elfiles);
5122 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5123 '$(am__ELFILES:.el=.elc)');
5124 # This one can be overridden by users.
5125 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5127 push @all, '$(ELCFILES)';
5129 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5130 'EMACS', 'lispdir');
5131 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5132 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5138 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5140 return if ! @pyfiles;
5142 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5143 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5144 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5150 my @sourcelist = &am_install_var ('-candist',
5153 return if ! @sourcelist;
5155 my @prefixes = am_primary_prefixes ('JAVA', 1,
5159 my @java_sources = ();
5160 foreach my $prefix (@prefixes)
5162 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5165 if $curs eq 'EXTRA';
5167 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5171 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5172 unless $curs eq $dir;
5178 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5181 if ($dir eq 'check')
5183 push (@check, "class$dir.stamp");
5187 push (@all, "class$dir.stamp");
5192 # Handle some of the minor options.
5193 sub handle_minor_options
5195 if (option 'readme-alpha')
5197 if ($relative_dir eq '.')
5199 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5201 msg ('error-gnits', $package_version_location,
5202 "version `$package_version' doesn't follow " .
5205 if (defined $1 && -f 'README-alpha')
5207 # This means we have an alpha release. See
5208 # GNITS_VERSION_PATTERN for details.
5209 push_dist_common ('README-alpha');
5215 ################################################################
5217 # ($OUTPUT, @INPUTS)
5218 # &split_config_file_spec ($SPEC)
5219 # -------------------------------
5220 # Decode the Autoconf syntax for config files (files, headers, links
5222 sub split_config_file_spec ($)
5225 my ($output, @inputs) = split (/:/, $spec);
5227 push @inputs, "$output.in"
5230 return ($output, @inputs);
5234 # locate_am (@POSSIBLE_SOURCES)
5235 # -----------------------------
5236 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5237 # This functions returns the first *.in file for which a *.am exists.
5238 # It returns undef otherwise.
5243 foreach my $file (@rest)
5245 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5256 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5257 # ---------------------------------------------------
5258 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5260 sub scan_autoconf_config_files ($$)
5262 my ($where, $config_files) = @_;
5264 # Look at potential Makefile.am's.
5265 foreach (split ' ', $config_files)
5267 # Must skip empty string for Perl 4.
5268 next if $_ eq "\\" || $_ eq '';
5270 # Handle $local:$input syntax.
5271 my ($local, @rest) = split (/:/);
5272 @rest = ("$local.in",) unless @rest;
5273 # Keep in sync with 'conffile-leading-dot.test'.
5274 msg ('unsupported', $where,
5275 "omit leading './' from config file names such as '$local';"
5276 . "\nremake rules might be subtly broken otherwise")
5277 if ($local =~ /^\.\//);
5278 my $input = locate_am @rest;
5281 # We have a file that automake should generate.
5282 $make_list{$input} = join (':', ($local, @rest));
5286 # We have a file that automake should cause to be
5287 # rebuilt, but shouldn't generate itself.
5288 push (@other_input_files, $_);
5290 $ac_config_files_location{$local} = $where;
5291 $ac_config_files_condition{$local} =
5292 new Automake::Condition (@cond_stack)
5298 # &scan_autoconf_traces ($FILENAME)
5299 # ---------------------------------
5300 sub scan_autoconf_traces ($)
5302 my ($filename) = @_;
5304 # Macros to trace, with their minimal number of arguments.
5306 # IMPORTANT: If you add a macro here, you should also add this macro
5307 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5309 AC_CANONICAL_BUILD => 0,
5310 AC_CANONICAL_HOST => 0,
5311 AC_CANONICAL_TARGET => 0,
5312 AC_CONFIG_AUX_DIR => 1,
5313 AC_CONFIG_FILES => 1,
5314 AC_CONFIG_HEADERS => 1,
5315 AC_CONFIG_LIBOBJ_DIR => 1,
5316 AC_CONFIG_LINKS => 1,
5320 AC_REQUIRE_AUX_FILE => 1,
5321 AC_SUBST_TRACE => 1,
5322 AM_AUTOMAKE_VERSION => 1,
5323 AM_CONDITIONAL => 2,
5324 AM_ENABLE_MULTILIB => 0,
5325 AM_GNU_GETTEXT => 0,
5326 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5327 AM_INIT_AUTOMAKE => 0,
5328 AM_MAINTAINER_MODE => 0,
5330 AM_PROG_CC_C_O => 0,
5331 AM_SILENT_RULES => 0,
5332 _AM_SUBST_NOTMAKE => 1,
5335 _AM_COND_ENDIF => 1,
5336 LT_SUPPORTED_TAG => 1,
5337 _LT_AC_TAGCONFIG => 0,
5343 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5345 # Use a separator unlikely to be used, not `:', the default, which
5346 # has a precise meaning for AC_CONFIG_FILES and so on.
5347 $traces .= join (' ',
5348 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5351 my $tracefh = new Automake::XFile ("$traces $filename |");
5352 verb "reading $traces";
5357 while ($_ = $tracefh->getline)
5360 my ($here, $depth, @args) = split (/::/);
5361 $where = new Automake::Location $here;
5362 my $macro = $args[0];
5364 prog_error ("unrequested trace `$macro'")
5365 unless exists $traced{$macro};
5367 # Skip and diagnose malformed calls.
5368 if ($#args < $traced{$macro})
5370 msg ('syntax', $where, "not enough arguments for $macro");
5374 # Alphabetical ordering please.
5375 if ($macro eq 'AC_CANONICAL_BUILD')
5377 if ($seen_canonical <= AC_CANONICAL_BUILD)
5379 $seen_canonical = AC_CANONICAL_BUILD;
5380 $canonical_location = $where;
5383 elsif ($macro eq 'AC_CANONICAL_HOST')
5385 if ($seen_canonical <= AC_CANONICAL_HOST)
5387 $seen_canonical = AC_CANONICAL_HOST;
5388 $canonical_location = $where;
5391 elsif ($macro eq 'AC_CANONICAL_TARGET')
5393 $seen_canonical = AC_CANONICAL_TARGET;
5394 $canonical_location = $where;
5396 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5398 if ($seen_init_automake)
5400 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5401 . "AM_INIT_AUTOMAKE...", partial => 1);
5402 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5404 $config_aux_dir = $args[1];
5405 $config_aux_dir_set_in_configure_ac = 1;
5406 $relative_dir = '.';
5407 check_directory ($config_aux_dir, $where);
5409 elsif ($macro eq 'AC_CONFIG_FILES')
5411 # Look at potential Makefile.am's.
5412 scan_autoconf_config_files ($where, $args[1]);
5414 elsif ($macro eq 'AC_CONFIG_HEADERS')
5416 foreach my $spec (split (' ', $args[1]))
5418 my ($dest, @src) = split (':', $spec);
5419 $ac_config_files_location{$dest} = $where;
5420 push @config_headers, $spec;
5423 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5425 $config_libobj_dir = $args[1];
5426 $relative_dir = '.';
5427 check_directory ($config_libobj_dir, $where);
5429 elsif ($macro eq 'AC_CONFIG_LINKS')
5431 foreach my $spec (split (' ', $args[1]))
5433 my ($dest, $src) = split (':', $spec);
5434 $ac_config_files_location{$dest} = $where;
5435 push @config_links, $spec;
5438 elsif ($macro eq 'AC_FC_SRCEXT')
5440 my $suffix = $args[1];
5441 # These flags are used as %SOURCEFLAG% in depend2.am,
5442 # where the trailing space is important.
5443 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5444 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5446 elsif ($macro eq 'AC_INIT')
5448 if (defined $args[2])
5450 $package_version = $args[2];
5451 $package_version_location = $where;
5454 elsif ($macro eq 'AC_LIBSOURCE')
5456 $libsources{$args[1]} = $here;
5458 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5460 # Only remember the first time a file is required.
5461 $required_aux_file{$args[1]} = $where
5462 unless exists $required_aux_file{$args[1]};
5464 elsif ($macro eq 'AC_SUBST_TRACE')
5466 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5467 # AC_SUBST(5), then too bad.
5468 $configure_vars{$args[1]} = $where
5469 if $args[1] =~ /^\w+$/;
5471 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5474 "version mismatch. This is Automake $VERSION,\n" .
5475 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5476 "comes from Automake $args[1]. You should recreate\n" .
5477 "aclocal.m4 with aclocal and run automake again.\n",
5478 # $? = 63 is used to indicate version mismatch to missing.
5480 if $VERSION ne $args[1];
5482 $seen_automake_version = 1;
5484 elsif ($macro eq 'AM_CONDITIONAL')
5486 $configure_cond{$args[1]} = $where;
5488 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5490 $seen_multilib = $where;
5492 elsif ($macro eq 'AM_GNU_GETTEXT')
5494 $seen_gettext = $where;
5495 $ac_gettext_location = $where;
5496 $seen_gettext_external = grep ($_ eq 'external', @args);
5498 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5500 $seen_gettext_intl = $where;
5502 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5504 $seen_init_automake = $where;
5505 if (defined $args[2])
5507 $package_version = $args[2];
5508 $package_version_location = $where;
5510 elsif (defined $args[1])
5513 if (process_global_option_list ($where,
5514 split (' ', $args[1])));
5517 elsif ($macro eq 'AM_MAINTAINER_MODE')
5519 $seen_maint_mode = $where;
5521 elsif ($macro eq 'AM_PROG_AR')
5525 elsif ($macro eq 'AM_PROG_CC_C_O')
5527 $seen_cc_c_o = $where;
5529 elsif ($macro eq 'AM_SILENT_RULES')
5531 set_global_option ('silent-rules', $where);
5533 elsif ($macro eq '_AM_COND_IF')
5535 cond_stack_if ('', $args[1], $where);
5536 error ($where, "missing m4 quoting, macro depth $depth")
5539 elsif ($macro eq '_AM_COND_ELSE')
5541 cond_stack_else ('!', $args[1], $where);
5542 error ($where, "missing m4 quoting, macro depth $depth")
5545 elsif ($macro eq '_AM_COND_ENDIF')
5547 cond_stack_endif (undef, undef, $where);
5548 error ($where, "missing m4 quoting, macro depth $depth")
5551 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5553 $ignored_configure_vars{$args[1]} = $where;
5555 elsif ($macro eq 'm4_include'
5556 || $macro eq 'm4_sinclude'
5557 || $macro eq 'sinclude')
5559 # Skip missing `sinclude'd files.
5560 next if $macro ne 'm4_include' && ! -f $args[1];
5562 # Some modified versions of Autoconf don't use
5563 # frozen files. Consequently it's possible that we see all
5564 # m4_include's performed during Autoconf's startup.
5565 # Obviously we don't want to distribute Autoconf's files
5566 # so we skip absolute filenames here.
5567 push @configure_deps, '$(top_srcdir)/' . $args[1]
5568 unless $here =~ m,^(?:\w:)?[\\/],;
5569 # Keep track of the greatest timestamp.
5572 my $mtime = mtime $args[1];
5573 $configure_deps_greatest_timestamp = $mtime
5574 if $mtime > $configure_deps_greatest_timestamp;
5577 elsif ($macro eq 'LT_SUPPORTED_TAG')
5579 $libtool_tags{$args[1]} = 1;
5580 $libtool_new_api = 1;
5582 elsif ($macro eq '_LT_AC_TAGCONFIG')
5584 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5585 # We use it to detect whether tags are supported. Our
5586 # preferred interface is LT_SUPPORTED_TAG, but it was
5587 # introduced in Libtool 1.6.
5588 if (0 == keys %libtool_tags)
5590 # Hardcode the tags supported by Libtool 1.5.
5591 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5596 error ($where, "condition stack not properly closed")
5603 # &scan_autoconf_files ()
5604 # -----------------------
5605 # Check whether we use `configure.ac' or `configure.in'.
5606 # Scan it (and possibly `aclocal.m4') for interesting things.
5607 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5608 sub scan_autoconf_files ()
5610 # Reinitialize libsources here. This isn't really necessary,
5611 # since we currently assume there is only one configure.ac. But
5612 # that won't always be the case.
5615 # Keep track of the youngest configure dependency.
5616 $configure_deps_greatest_timestamp = mtime $configure_ac;
5617 if (-e 'aclocal.m4')
5619 my $mtime = mtime 'aclocal.m4';
5620 $configure_deps_greatest_timestamp = $mtime
5621 if $mtime > $configure_deps_greatest_timestamp;
5624 scan_autoconf_traces ($configure_ac);
5626 @configure_input_files = sort keys %make_list;
5627 # Set input and output files if not specified by user.
5630 @input_files = @configure_input_files;
5631 %output_files = %make_list;
5635 if (! $seen_init_automake)
5637 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5638 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5639 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5640 . "and that aclocal.m4 was recently regenerated "
5641 . "(using aclocal).");
5645 if (! $seen_automake_version)
5647 if (-f 'aclocal.m4')
5649 error ($seen_init_automake,
5650 "your implementation of AM_INIT_AUTOMAKE comes from " .
5651 "an\nold Automake version. You should recreate " .
5652 "aclocal.m4\nwith aclocal and run automake again.\n",
5653 # $? = 63 is used to indicate version mismatch to missing.
5658 error ($seen_init_automake,
5659 "no proper implementation of AM_INIT_AUTOMAKE was " .
5660 "found,\nprobably because aclocal.m4 is missing...\n" .
5661 "You should run aclocal to create this file, then\n" .
5662 "run automake again.\n");
5669 # Reorder @input_files so that the Makefile that distributes aux
5670 # files is processed last. This is important because each directory
5671 # can require auxiliary scripts and we should wait until they have
5672 # been installed before distributing them.
5674 # The Makefile.in that distribute the aux files is the one in
5675 # $config_aux_dir or the top-level Makefile.
5676 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5677 my @new_input_files = ();
5678 while (@input_files)
5680 my $in = pop @input_files;
5681 my @ins = split (/:/, $output_files{$in});
5682 if (dirname ($ins[0]) eq $auxdirdist)
5684 push @new_input_files, $in;
5685 $automake_will_process_aux_dir = 1;
5689 unshift @new_input_files, $in;
5692 @input_files = @new_input_files;
5694 # If neither the auxdir/Makefile nor the ./Makefile are generated
5695 # by Automake, we won't distribute the aux files anyway. Assume
5696 # the user know what (s)he does, and pretend we will distribute
5697 # them to disable the error in require_file_internal.
5698 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5700 # Look for some files we need. Always check for these. This
5701 # check must be done for every run, even those where we are only
5702 # looking at a subdir Makefile. We must set relative_dir for
5703 # maybe_push_required_file to work.
5704 # Sort the files for stable verbose output.
5705 $relative_dir = '.';
5706 foreach my $file (sort keys %required_aux_file)
5708 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5710 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5711 if -f $config_aux_dir . '/install.sh';
5713 # Preserve dist_common for later.
5714 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5718 ################################################################
5720 # Set up for Cygnus mode.
5723 my $cygnus = option 'cygnus';
5724 return unless $cygnus;
5726 set_strictness ('foreign');
5727 set_option ('no-installinfo', $cygnus);
5728 set_option ('no-dependencies', $cygnus);
5729 set_option ('no-dist', $cygnus);
5731 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5732 if !$seen_maint_mode;
5735 # Do any extra checking for GNU standards.
5736 sub check_gnu_standards
5738 if ($relative_dir eq '.')
5740 # In top level (or only) directory.
5741 require_file ("$am_file.am", GNU,
5742 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5744 # Accept one of these three licenses; default to COPYING.
5745 # Make sure we do not overwrite an existing license.
5747 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5755 require_file ("$am_file.am", GNU, 'COPYING')
5759 for my $opt ('no-installman', 'no-installinfo')
5761 msg ('error-gnu', option $opt,
5762 "option `$opt' disallowed by GNU standards")
5767 # Do any extra checking for GNITS standards.
5768 sub check_gnits_standards
5770 if ($relative_dir eq '.')
5772 # In top level (or only) directory.
5773 require_file ("$am_file.am", GNITS, 'THANKS');
5777 ################################################################
5779 # Functions to handle files of each language.
5781 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5782 # simple formula: Return value is LANG_SUBDIR if the resulting object
5783 # file should be in a subdir if the source file is, LANG_PROCESS if
5784 # file is to be dealt with, LANG_IGNORE otherwise.
5786 # Much of the actual processing is handled in
5787 # handle_single_transform. These functions exist so that
5788 # auxiliary information can be recorded for a later cleanup pass.
5789 # Note that the calls to these functions are computed, so don't bother
5790 # searching for their precise names in the source.
5792 # This is just a convenience function that can be used to determine
5793 # when a subdir object should be used.
5796 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5799 # Rewrite a single C source file.
5802 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5804 if (option 'ansi2knr' && $base =~ /_$/)
5806 # FIXME: include line number in error.
5807 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5810 my $r = LANG_PROCESS;
5811 if (option 'subdir-objects')
5814 if ($directory && $directory ne '.')
5816 $base = $directory . '/' . $base;
5818 # libtool is always able to put the object at the proper place,
5819 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5820 msg_var ('portability', $var,
5821 "compiling `$base.c' in subdir requires "
5822 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5823 uniq_scope => US_GLOBAL,
5824 uniq_part => 'AM_PROG_CC_C_O subdir')
5825 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5828 # In this case we already have the directory information, so
5829 # don't add it again.
5830 $de_ansi_files{$base} = '';
5834 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5840 && $have_per_exec_flags
5841 && ! option 'subdir-objects'
5842 && $nonansi_obj ne '.lo')
5844 msg_var ('portability',
5845 $var, "compiling `$base.c' with per-target flags requires "
5846 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5847 uniq_scope => US_GLOBAL,
5848 uniq_part => 'AM_PROG_CC_C_O per-target')
5854 # Rewrite a single C++ source file.
5855 sub lang_cxx_rewrite
5857 return &lang_sub_obj;
5860 # Rewrite a single header file.
5861 sub lang_header_rewrite
5863 # Header files are simply ignored.
5867 # Rewrite a single Vala source file.
5868 sub lang_vala_rewrite
5870 my ($directory, $base, $ext) = @_;
5872 (my $newext = $ext) =~ s/vala$/c/;
5873 return (LANG_SUBDIR, $newext);
5876 # Rewrite a single yacc file.
5877 sub lang_yacc_rewrite
5879 my ($directory, $base, $ext) = @_;
5881 my $r = &lang_sub_obj;
5882 (my $newext = $ext) =~ tr/y/c/;
5883 return ($r, $newext);
5886 # Rewrite a single yacc++ file.
5887 sub lang_yaccxx_rewrite
5889 my ($directory, $base, $ext) = @_;
5891 my $r = &lang_sub_obj;
5892 (my $newext = $ext) =~ tr/y/c/;
5893 return ($r, $newext);
5896 # Rewrite a single lex file.
5897 sub lang_lex_rewrite
5899 my ($directory, $base, $ext) = @_;
5901 my $r = &lang_sub_obj;
5902 (my $newext = $ext) =~ tr/l/c/;
5903 return ($r, $newext);
5906 # Rewrite a single lex++ file.
5907 sub lang_lexxx_rewrite
5909 my ($directory, $base, $ext) = @_;
5911 my $r = &lang_sub_obj;
5912 (my $newext = $ext) =~ tr/l/c/;
5913 return ($r, $newext);
5916 # Rewrite a single assembly file.
5917 sub lang_asm_rewrite
5919 return &lang_sub_obj;
5922 # Rewrite a single preprocessed assembly file.
5923 sub lang_cppasm_rewrite
5925 return &lang_sub_obj;
5928 # Rewrite a single Fortran 77 file.
5929 sub lang_f77_rewrite
5931 return &lang_sub_obj;
5934 # Rewrite a single Fortran file.
5937 return &lang_sub_obj;
5940 # Rewrite a single preprocessed Fortran file.
5941 sub lang_ppfc_rewrite
5943 return &lang_sub_obj;
5946 # Rewrite a single preprocessed Fortran 77 file.
5947 sub lang_ppf77_rewrite
5949 return &lang_sub_obj;
5952 # Rewrite a single ratfor file.
5953 sub lang_ratfor_rewrite
5955 return &lang_sub_obj;
5958 # Rewrite a single Objective C file.
5959 sub lang_objc_rewrite
5961 return &lang_sub_obj;
5964 # Rewrite a single Unified Parallel C file.
5965 sub lang_upc_rewrite
5967 return &lang_sub_obj;
5970 # Rewrite a single Java file.
5971 sub lang_java_rewrite
5976 # The lang_X_finish functions are called after all source file
5977 # processing is done. Each should handle defining rules for the
5978 # language, etc. A finish function is only called if a source file of
5979 # the appropriate type has been seen.
5983 # Push all libobjs files onto de_ansi_files. We actually only
5984 # push files which exist in the current directory, and which are
5985 # genuine source files.
5986 foreach my $file (keys %libsources)
5988 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5990 $de_ansi_files{$1} = ''
5994 if (option 'ansi2knr' && keys %de_ansi_files)
5996 # Make all _.c files depend on their corresponding .c files.
5998 foreach my $base (sort keys %de_ansi_files)
6000 # Each _.c file must depend on ansi2knr; otherwise it
6001 # might be used in a parallel build before it is built.
6002 # We need to support files in the srcdir and in the build
6003 # dir (because these files might be auto-generated. But
6004 # we can't use $< -- some makes only define $< during a
6006 my $ansfile = $de_ansi_files{$base} . $base . '.c';
6007 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
6008 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
6009 . '`if test -f $(srcdir)/' . $ansfile
6010 . '; then echo $(srcdir)/' . $ansfile
6011 . '; else echo ' . $ansfile . '; fi` '
6012 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
6013 . '| $(ANSI2KNR) > $@'
6014 # If ansi2knr fails then we shouldn't
6015 # create the _.c file
6016 . " || rm -f \$\@\n");
6017 push (@objects, $base . '_.$(OBJEXT)');
6018 push (@objects, $base . '_.lo')
6021 # Explicitly clean the _.c files if they are in a
6022 # subdirectory. (In the current directory they get erased
6023 # by a `rm -f *_.c' rule.)
6024 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
6025 if dirname ($base) ne '.';
6028 # Make all _.o (and _.lo) files depend on ansi2knr.
6029 # Use a sneaky little hack to make it print nicely.
6030 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
6034 sub lang_vala_finish_target ($$)
6036 my ($self, $name) = @_;
6038 my $derived = canonicalize ($name);
6039 my $var = var "${derived}_SOURCES";
6042 my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
6044 # For automake bug#11229.
6045 return unless @vala_sources;
6047 foreach my $vala_file (@vala_sources)
6049 my $c_file = $vala_file;
6050 $output_rules .= "\$(srcdir)/$c_file: \$(srcdir)/${derived}_vala.stamp\n"
6051 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6052 . "\t\@if test -f \$@; then :; else \\\n"
6053 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6055 if $c_file =~ s/(.*)\.vala$/$1.c/;
6058 # Add rebuild rules for generated header and vapi files
6059 my $flags = var ($derived . '_VALAFLAGS');
6063 foreach my $flag ($flags->value_as_list_recursive)
6065 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
6066 '--vapi', '--internal-vapi', '--gir')))
6068 my $headerfile = $flag;
6069 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
6070 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6071 . "\t\@if test -f \$@; then :; else \\\n"
6072 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6075 # valac is not used when building from dist tarballs
6076 # distribute the generated files
6077 push_dist_common ($headerfile);
6078 $clean_files{$headerfile} = MAINTAINER_CLEAN;
6084 my $compile = $self->compile;
6086 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
6087 # rule into `${derived}_VALAFLAGS' if it exists.
6088 my $val = "${derived}_VALAFLAGS";
6089 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
6092 # VALAFLAGS is a user variable (per GNU Standards),
6093 # it should not be overridden in the Makefile...
6094 check_user_variables ['VALAFLAGS'];
6096 my $dirname = dirname ($name);
6098 # Only generate C code, do not run C compiler
6101 my $verbose = verbose_flag ('VALAC');
6102 my $silent = silent_flag ();
6105 "\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
6106 # Since the C files generated from the vala sources depend on the
6107 # ${derived}_vala.stamp file, we must ensure its timestamp is older than
6108 # those of the C files generated by the valac invocation below (this is
6109 # especially important on systems with sub-second timestamp resolution).
6110 # Thus we need to create the stamp file *before* invoking valac, and to
6111 # move it to its final location only after valac has been invoked.
6112 "\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
6113 "\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
6114 "\t${silent}mv -f \$\@-t \$\@\n";
6116 push_dist_common ("${derived}_vala.stamp");
6118 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6121 # Add output rules to invoke valac and create stamp file as a witness
6122 # to handle multiple outputs. This function is called after all source
6123 # file processing is done.
6124 sub lang_vala_finish
6128 foreach my $prog (keys %known_programs)
6130 lang_vala_finish_target ($self, $prog);
6133 while (my ($name) = each %known_libraries)
6135 lang_vala_finish_target ($self, $name);
6139 # The built .c files should be cleaned only on maintainer-clean
6140 # as the .c files are distributed. This function is called for each
6141 # .vala source file.
6142 sub lang_vala_target_hook
6144 my ($self, $aggregate, $output, $input, %transform) = @_;
6146 $clean_files{$output} = MAINTAINER_CLEAN;
6149 # This is a yacc helper which is called whenever we have decided to
6150 # compile a yacc file.
6151 sub lang_yacc_target_hook
6153 my ($self, $aggregate, $output, $input, %transform) = @_;
6155 my $flag = $aggregate . "_YFLAGS";
6156 my $flagvar = var $flag;
6157 my $YFLAGSvar = var 'YFLAGS';
6158 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6159 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6161 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6162 my $header = $output_base . '.h';
6164 # Found a `-d' that applies to the compilation of this file.
6165 # Add a dependency for the generated header file, and arrange
6166 # for that file to be included in the distribution.
6167 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6168 RULE_AUTOMAKE, TRUE,
6171 my $condstr = $cond->subst_string;
6173 "$condstr${header}: $output\n"
6174 # Recover from removal of $header
6175 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
6176 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
6178 # Distribute the generated file, unless its .y source was
6179 # listed in a nodist_ variable. (&handle_source_transform
6180 # will set DIST_SOURCE.)
6181 &push_dist_common ($header)
6182 if $transform{'DIST_SOURCE'};
6184 # If the files are built in the build directory, then we want
6185 # to remove them with `make clean'. If they are in srcdir
6186 # they 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
6190 $clean_files{$header} = MAINTAINER_CLEAN;
6192 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6193 # See the comment above for $HEADER.
6194 $clean_files{$output} = MAINTAINER_CLEAN;
6197 # This is a lex helper which is called whenever we have decided to
6198 # compile a lex file.
6199 sub lang_lex_target_hook
6201 my ($self, $aggregate, $output, $input) = @_;
6202 # If the files are built in the build directory, then we want to
6203 # remove them with `make clean'. If they are in srcdir they
6204 # shouldn't be touched. However, we can't determine this
6205 # statically, and the GNU rules say that yacc/lex output files
6206 # should be removed by maintainer-clean. So that's what we do.
6207 $clean_files{$output} = MAINTAINER_CLEAN;
6210 # This is a helper for both lex and yacc.
6211 sub yacc_lex_finish_helper
6213 return if defined $language_scratch{'lex-yacc-done'};
6214 $language_scratch{'lex-yacc-done'} = 1;
6216 # FIXME: for now, no line number.
6217 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6218 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6221 sub lang_yacc_finish
6223 return if defined $language_scratch{'yacc-done'};
6224 $language_scratch{'yacc-done'} = 1;
6226 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6228 yacc_lex_finish_helper;
6234 return if defined $language_scratch{'lex-done'};
6235 $language_scratch{'lex-done'} = 1;
6237 yacc_lex_finish_helper;
6241 # Given a hash table of linker names, pick the name that has the most
6242 # precedence. This is lame, but something has to have global
6243 # knowledge in order to eliminate the conflict. Add more linkers as
6249 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6251 return $l if defined $linkers{$l};
6256 # Called to indicate that an extension was used.
6260 if (! defined $extension_seen{$ext})
6262 $extension_seen{$ext} = 1;
6266 ++$extension_seen{$ext};
6270 # Return the number of files seen for a given language. Knows about
6271 # special cases we care about. FIXME: this is hideous. We need
6272 # something that involves real language objects. For instance yacc
6273 # and yaccxx could both derive from a common yacc class which would
6274 # know about the strange ylwrap requirement. (Or better yet we could
6275 # just not support legacy yacc!)
6276 sub count_files_for_language
6281 if ($name eq 'yacc' || $name eq 'yaccxx')
6283 @names = ('yacc', 'yaccxx');
6285 elsif ($name eq 'lex' || $name eq 'lexxx')
6287 @names = ('lex', 'lexxx');
6295 foreach $name (@names)
6297 my $lang = $languages{$name};
6298 foreach my $ext (@{$lang->extensions})
6300 $r += $extension_seen{$ext}
6301 if defined $extension_seen{$ext};
6308 # Called to ask whether source files have been seen . If HEADERS is 1,
6309 # headers can be included.
6314 # count all the sources
6316 foreach my $val (values %extension_seen)
6323 $count -= count_files_for_language ('header');
6330 # register_language (%ATTRIBUTE)
6331 # ------------------------------
6332 # Register a single language.
6333 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6334 sub register_language (%)
6340 unless defined $option{'ansi'};
6341 $option{'autodep'} = 'no'
6342 unless defined $option{'autodep'};
6343 $option{'linker'} = ''
6344 unless defined $option{'linker'};
6345 $option{'flags'} = []
6346 unless defined $option{'flags'};
6347 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6348 unless defined $option{'output_extensions'};
6349 $option{'nodist_specific'} = 0
6350 unless defined $option{'nodist_specific'};
6352 my $lang = new Language (%option);
6355 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6356 $languages{$lang->name} = $lang;
6357 my $link = $lang->linker;
6360 if (exists $link_languages{$link})
6362 prog_error ("`$link' has different definitions in "
6363 . $lang->name . " and " . $link_languages{$link}->name)
6364 if $lang->link ne $link_languages{$link}->link;
6368 $link_languages{$link} = $lang;
6372 # Update the pattern of known extensions.
6373 accept_extensions (@{$lang->extensions});
6375 # Upate the $suffix_rule map.
6376 foreach my $suffix (@{$lang->extensions})
6378 foreach my $dest (&{$lang->output_extensions} ($suffix))
6380 register_suffix_rule (INTERNAL, $suffix, $dest);
6385 # derive_suffix ($EXT, $OBJ)
6386 # --------------------------
6387 # This function is used to find a path from a user-specified suffix $EXT
6388 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6389 sub derive_suffix ($$)
6391 my ($source_ext, $obj) = @_;
6393 while (! $extension_map{$source_ext}
6394 && $source_ext ne $obj
6395 && exists $suffix_rules->{$source_ext}
6396 && exists $suffix_rules->{$source_ext}{$obj})
6398 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6405 ################################################################
6407 # Pretty-print something and append to output_rules.
6408 sub pretty_print_rule
6410 $output_rules .= &makefile_wrap (@_);
6414 ################################################################
6417 ## -------------------------------- ##
6418 ## Handling the conditional stack. ##
6419 ## -------------------------------- ##
6423 # make_conditional_string ($NEGATE, $COND)
6424 # ----------------------------------------
6425 sub make_conditional_string ($$)
6427 my ($negate, $cond) = @_;
6428 $cond = "${cond}_TRUE"
6429 unless $cond =~ /^TRUE|FALSE$/;
6430 $cond = Automake::Condition::conditional_negate ($cond)
6436 my %_am_macro_for_cond =
6438 AMDEP => "one of the compiler tests\n"
6439 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6440 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6441 am__fastdepCC => 'AC_PROG_CC',
6442 am__fastdepCCAS => 'AM_PROG_AS',
6443 am__fastdepCXX => 'AC_PROG_CXX',
6444 am__fastdepGCJ => 'AM_PROG_GCJ',
6445 am__fastdepOBJC => 'AC_PROG_OBJC',
6446 am__fastdepUPC => 'AM_PROG_UPC'
6450 # cond_stack_if ($NEGATE, $COND, $WHERE)
6451 # --------------------------------------
6452 sub cond_stack_if ($$$)
6454 my ($negate, $cond, $where) = @_;
6456 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6458 my $text = "$cond does not appear in AM_CONDITIONAL";
6459 my $scope = US_LOCAL;
6460 if (exists $_am_macro_for_cond{$cond})
6462 my $mac = $_am_macro_for_cond{$cond};
6463 $text .= "\n The usual way to define `$cond' is to add ";
6464 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6465 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6466 # These warnings appear in Automake files (depend2.am),
6467 # so there is no need to display them more than once:
6470 error $where, $text, uniq_scope => $scope;
6473 push (@cond_stack, make_conditional_string ($negate, $cond));
6475 return new Automake::Condition (@cond_stack);
6480 # cond_stack_else ($NEGATE, $COND, $WHERE)
6481 # ----------------------------------------
6482 sub cond_stack_else ($$$)
6484 my ($negate, $cond, $where) = @_;
6488 error $where, "else without if";
6492 $cond_stack[$#cond_stack] =
6493 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6495 # If $COND is given, check against it.
6498 $cond = make_conditional_string ($negate, $cond);
6500 error ($where, "else reminder ($negate$cond) incompatible with "
6501 . "current conditional: $cond_stack[$#cond_stack]")
6502 if $cond_stack[$#cond_stack] ne $cond;
6505 return new Automake::Condition (@cond_stack);
6510 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6511 # -----------------------------------------
6512 sub cond_stack_endif ($$$)
6514 my ($negate, $cond, $where) = @_;
6519 error $where, "endif without if";
6523 # If $COND is given, check against it.
6526 $cond = make_conditional_string ($negate, $cond);
6528 error ($where, "endif reminder ($negate$cond) incompatible with "
6529 . "current conditional: $cond_stack[$#cond_stack]")
6530 if $cond_stack[$#cond_stack] ne $cond;
6535 return new Automake::Condition (@cond_stack);
6542 ## ------------------------ ##
6543 ## Handling the variables. ##
6544 ## ------------------------ ##
6547 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6548 # -----------------------------------------------------
6549 # Like define_variable, but the value is a list, and the variable may
6550 # be defined conditionally. The second argument is the condition
6551 # under which the value should be defined; this should be the empty
6552 # string to define the variable unconditionally. The third argument
6553 # is a list holding the values to use for the variable. The value is
6554 # pretty printed in the output file.
6555 sub define_pretty_variable ($$$@)
6557 my ($var, $cond, $where, @value) = @_;
6559 if (! vardef ($var, $cond))
6561 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6562 '', $where, VAR_PRETTY);
6563 rvar ($var)->rdef ($cond)->set_seen;
6568 # define_variable ($VAR, $VALUE, $WHERE)
6569 # --------------------------------------
6570 # Define a new Automake Makefile variable VAR to VALUE, but only if
6571 # not already defined.
6572 sub define_variable ($$$)
6574 my ($var, $value, $where) = @_;
6575 define_pretty_variable ($var, TRUE, $where, $value);
6579 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6580 # ------------------------------------------------------------
6581 # Define the $VAR which content is the list of file names composed of
6582 # a @BASENAME and the $EXTENSION.
6583 sub define_files_variable ($\@$$)
6585 my ($var, $basename, $extension, $where) = @_;
6586 define_variable ($var,
6587 join (' ', map { "$_.$extension" } @$basename),
6592 # Like define_variable, but define a variable to be the configure
6593 # substitution by the same name.
6594 sub define_configure_variable ($)
6598 my $pretty = VAR_ASIS;
6599 my $owner = VAR_CONFIGURE;
6601 # Some variables we do not want to output. For instance it
6602 # would be a bad idea to output `U = @U@` when `@U@` can be
6603 # substituted as `\`.
6604 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6606 # ANSI2KNR is a variable that Automake wants to redefine, so
6607 # it must be owned by Automake. (It is also used as a proof
6608 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6609 # omit the AC_SUBST.)
6610 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6612 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6613 '', $configure_vars{$var}, $pretty);
6617 # define_compiler_variable ($LANG)
6618 # --------------------------------
6619 # Define a compiler variable. We also handle defining the `LT'
6620 # version of the command when using libtool.
6621 sub define_compiler_variable ($)
6625 my ($var, $value) = ($lang->compiler, $lang->compile);
6626 my $libtool_tag = '';
6627 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6628 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6629 &define_variable ($var, $value, INTERNAL);
6630 if (var ('LIBTOOL'))
6632 my $verbose = define_verbose_libtool ();
6633 &define_variable ("LT$var",
6634 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6635 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6638 define_verbose_tagvar ($lang->ccer || 'GEN');
6642 # define_linker_variable ($LANG)
6643 # ------------------------------
6644 # Define linker variables.
6645 sub define_linker_variable ($)
6649 my $libtool_tag = '';
6650 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6651 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6653 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6654 # CCLINK = $(CCLD) blah blah...
6656 if (var ('LIBTOOL'))
6658 my $verbose = define_verbose_libtool ();
6659 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6660 . "\$(LIBTOOLFLAGS) --mode=link ";
6662 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6663 &define_variable ($lang->compiler, $lang);
6664 &define_verbose_tagvar ($lang->lder || 'GEN');
6667 sub define_per_target_linker_variable ($$)
6669 my ($linker, $target) = @_;
6671 # If the user wrote a custom link command, we don't define ours.
6672 return "${target}_LINK"
6673 if set_seen "${target}_LINK";
6675 my $xlink = $linker ? $linker : 'LINK';
6677 my $lang = $link_languages{$xlink};
6678 prog_error "Unknown language for linker variable `$xlink'"
6681 my $link_command = $lang->link;
6684 my $libtool_tag = '';
6685 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6686 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6688 my $verbose = define_verbose_libtool ();
6690 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6691 . "--mode=link " . $link_command;
6694 # Rewrite each occurrence of `AM_$flag' in the link
6695 # command into `${derived}_$flag' if it exists.
6696 my $orig_command = $link_command;
6697 my @flags = (@{$lang->flags}, 'LDFLAGS');
6698 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6699 for my $flag (@flags)
6701 my $val = "${target}_$flag";
6702 $link_command =~ s/\(AM_$flag\)/\($val\)/
6706 # If the computed command is the same as the generic command, use
6707 # the command linker variable.
6708 return ($lang->linker, $lang->lder)
6709 if $link_command eq $orig_command;
6711 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6712 return ("${target}_LINK", $lang->lder);
6715 ################################################################
6717 # &check_trailing_slash ($WHERE, $LINE)
6718 # -------------------------------------
6719 # Return 1 iff $LINE ends with a slash.
6720 # Might modify $LINE.
6721 sub check_trailing_slash ($\$)
6723 my ($where, $line) = @_;
6725 # Ignore `##' lines.
6726 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6728 # Catch and fix a common error.
6729 msg "syntax", $where, "whitespace following trailing backslash"
6730 if $$line =~ s/\\\s+\n$/\\\n/;
6732 return $$line =~ /\\$/;
6736 # &read_am_file ($AMFILE, $WHERE)
6737 # -------------------------------
6738 # Read Makefile.am and set up %contents. Simultaneously copy lines
6739 # from Makefile.am into $output_trailer, or define variables as
6740 # appropriate. NOTE we put rules in the trailer section. We want
6741 # user rules to come after our generated stuff.
6742 sub read_am_file ($$)
6744 my ($amfile, $where) = @_;
6746 my $am_file = new Automake::XFile ("< $amfile");
6747 verb "reading $amfile";
6749 # Keep track of the youngest output dependency.
6750 my $mtime = mtime $amfile;
6751 $output_deps_greatest_timestamp = $mtime
6752 if $mtime > $output_deps_greatest_timestamp;
6758 my $var_look = VAR_ASIS;
6760 use constant IN_VAR_DEF => 0;
6761 use constant IN_RULE_DEF => 1;
6762 use constant IN_COMMENT => 2;
6763 my $prev_state = IN_RULE_DEF;
6765 while ($_ = $am_file->getline)
6767 $where->set ("$amfile:$.");
6768 if (/$IGNORE_PATTERN/o)
6770 # Merely delete comments beginning with two hashes.
6772 elsif (/$WHITE_PATTERN/o)
6774 error $where, "blank line following trailing backslash"
6776 # Stick a single white line before the incoming macro or rule.
6779 # Flush all comments seen so far.
6782 $output_vars .= $comment;
6786 elsif (/$COMMENT_PATTERN/o)
6788 # Stick comments before the incoming macro or rule. Make
6789 # sure a blank line precedes the first block of comments.
6790 $spacing = "\n" unless $blank;
6792 $comment .= $spacing . $_;
6794 $prev_state = IN_COMMENT;
6800 $saw_bk = check_trailing_slash ($where, $_);
6803 # We save the conditional stack on entry, and then check to make
6804 # sure it is the same on exit. This lets us conditionally include
6806 my @saved_cond_stack = @cond_stack;
6807 my $cond = new Automake::Condition (@cond_stack);
6809 my $last_var_name = '';
6810 my $last_var_type = '';
6811 my $last_var_value = '';
6813 # FIXME: shouldn't use $_ in this loop; it is too big.
6816 $where->set ("$amfile:$.");
6818 # Make sure the line is \n-terminated.
6822 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6823 # used by users. @MAINT@ is an anachronism now.
6824 $_ =~ s/\@MAINT\@//g
6825 unless $seen_maint_mode;
6827 my $new_saw_bk = check_trailing_slash ($where, $_);
6829 if (/$IGNORE_PATTERN/o)
6831 # Merely delete comments beginning with two hashes.
6833 # Keep any backslash from the previous line.
6834 $new_saw_bk = $saw_bk;
6836 elsif (/$WHITE_PATTERN/o)
6838 # Stick a single white line before the incoming macro or rule.
6840 error $where, "blank line following trailing backslash"
6843 elsif (/$COMMENT_PATTERN/o)
6845 error $where, "comment following trailing backslash"
6846 if $saw_bk && $prev_state != IN_COMMENT;
6848 # Stick comments before the incoming macro or rule.
6849 $comment .= $spacing . $_;
6851 $prev_state = IN_COMMENT;
6855 if ($prev_state == IN_RULE_DEF)
6857 my $cond = new Automake::Condition @cond_stack;
6858 $output_trailer .= $cond->subst_string;
6859 $output_trailer .= $_;
6861 elsif ($prev_state == IN_COMMENT)
6863 # If the line doesn't start with a `#', add it.
6864 # We do this because a continued comment like
6868 # is not portable. BSD make doesn't honor
6869 # escaped newlines in comments.
6871 $comment .= $spacing . $_;
6873 else # $prev_state == IN_VAR_DEF
6875 $last_var_value .= ' '
6876 unless $last_var_value =~ /\s$/;
6877 $last_var_value .= $_;
6881 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6882 $last_var_type, $cond,
6883 $last_var_value, $comment,
6884 $last_where, VAR_ASIS)
6886 $comment = $spacing = '';
6891 elsif (/$IF_PATTERN/o)
6893 $cond = cond_stack_if ($1, $2, $where);
6895 elsif (/$ELSE_PATTERN/o)
6897 $cond = cond_stack_else ($1, $2, $where);
6899 elsif (/$ENDIF_PATTERN/o)
6901 $cond = cond_stack_endif ($1, $2, $where);
6904 elsif (/$RULE_PATTERN/o)
6907 $prev_state = IN_RULE_DEF;
6909 # For now we have to output all definitions of user rules
6910 # and can't diagnose duplicates (see the comment in
6911 # Automake::Rule::define). So we go on and ignore the return value.
6912 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6914 check_variable_expansions ($_, $where);
6916 $output_trailer .= $comment . $spacing;
6917 my $cond = new Automake::Condition @cond_stack;
6918 $output_trailer .= $cond->subst_string;
6919 $output_trailer .= $_;
6920 $comment = $spacing = '';
6922 elsif (/$ASSIGNMENT_PATTERN/o)
6924 # Found a macro definition.
6925 $prev_state = IN_VAR_DEF;
6926 $last_var_name = $1;
6927 $last_var_type = $2;
6928 $last_var_value = $3;
6929 $last_where = $where->clone;
6930 if ($3 ne '' && substr ($3, -1) eq "\\")
6932 # We preserve the `\' because otherwise the long lines
6933 # that are generated will be truncated by broken
6935 $last_var_value = $3 . "\n";
6937 # Normally we try to output variable definitions in the
6938 # same format they were input. However, POSIX compliant
6939 # systems are not required to support lines longer than
6940 # 2048 bytes (most notably, some sed implementation are
6941 # limited to 4000 bytes, and sed is used by config.status
6942 # to rewrite Makefile.in into Makefile). Moreover nobody
6943 # would really write such long lines by hand since it is
6944 # hardly maintainable. So if a line is longer that 1000
6945 # bytes (an arbitrary limit), assume it has been
6946 # automatically generated by some tools, and flatten the
6947 # variable definition. Otherwise, keep the variable as it
6949 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6953 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6954 $last_var_type, $cond,
6955 $last_var_value, $comment,
6956 $last_where, $var_look)
6958 $comment = $spacing = '';
6959 $var_look = VAR_ASIS;
6962 elsif (/$INCLUDE_PATTERN/o)
6966 if ($path =~ s/^\$\(top_srcdir\)\///)
6968 push (@include_stack, "\$\(top_srcdir\)/$path");
6969 # Distribute any included file.
6971 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6972 # otherwise OSF make will implicitly copy the included
6973 # file in the build tree during `make distdir' to satisfy
6975 # (subdircond2.test and subdircond3.test will fail.)
6976 push_dist_common ("\$\(top_srcdir\)/$path");
6980 $path =~ s/\$\(srcdir\)\///;
6981 push (@include_stack, "\$\(srcdir\)/$path");
6982 # Always use the $(srcdir) prefix in DIST_COMMON,
6983 # otherwise OSF make will implicitly copy the included
6984 # file in the build tree during `make distdir' to satisfy
6986 # (subdircond2.test and subdircond3.test will fail.)
6987 push_dist_common ("\$\(srcdir\)/$path");
6988 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6990 $where->push_context ("`$path' included from here");
6991 &read_am_file ($path, $where);
6992 $where->pop_context;
6996 # This isn't an error; it is probably a continued rule.
6997 # In fact, this is what we assume.
6998 $prev_state = IN_RULE_DEF;
6999 check_variable_expansions ($_, $where);
7000 $output_trailer .= $comment . $spacing;
7001 my $cond = new Automake::Condition @cond_stack;
7002 $output_trailer .= $cond->subst_string;
7003 $output_trailer .= $_;
7004 $comment = $spacing = '';
7005 error $where, "`#' comment at start of rule is unportable"
7006 if $_ =~ /^\t\s*\#/;
7009 $saw_bk = $new_saw_bk;
7010 $_ = $am_file->getline;
7013 $output_trailer .= $comment;
7015 error ($where, "trailing backslash on last line")
7018 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
7019 : "too many conditionals closed in include file"))
7020 if "@saved_cond_stack" ne "@cond_stack";
7024 # define_standard_variables ()
7025 # ----------------------------
7026 # A helper for read_main_am_file which initializes configure variables
7027 # and variables from header-vars.am.
7028 sub define_standard_variables
7030 my $saved_output_vars = $output_vars;
7031 my ($comments, undef, $rules) =
7032 file_contents_internal (1, "$libdir/am/header-vars.am",
7033 new Automake::Location);
7035 foreach my $var (sort keys %configure_vars)
7037 &define_configure_variable ($var);
7040 $output_vars .= $comments . $rules;
7043 # Read main am file.
7044 sub read_main_am_file
7048 # This supports the strange variable tricks we are about to play.
7049 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
7050 if (scalar (variables) > 0);
7052 # Generate copyright header for generated Makefile.in.
7053 # We do discard the output of predefined variables, handled below.
7054 $output_vars = ("# $in_file_name generated by automake "
7055 . $VERSION . " from $am_file_name.\n");
7056 $output_vars .= '# ' . subst ('configure_input') . "\n";
7057 $output_vars .= $gen_copyright;
7059 # We want to predefine as many variables as possible. This lets
7060 # the user set them with `+=' in Makefile.am.
7061 &define_standard_variables;
7063 # Read user file, which might override some of our values.
7064 &read_am_file ($amfile, new Automake::Location);
7069 ################################################################
7072 # &flatten ($STRING)
7073 # ------------------
7074 # Flatten the $STRING and return the result.
7088 # transform_token ($TOKEN, \%PAIRS, $KEY)
7089 # =======================================
7090 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
7091 # (which should be ?KEY? or any of the special %% requests)..
7092 sub transform_token ($$$)
7094 my ($token, $transform, $key) = @_;
7095 my $res = $transform->{$key};
7096 prog_error "Unknown key `$key' in `$token'" unless defined $res;
7101 # transform ($TOKEN, \%PAIRS)
7102 # ===========================
7103 # If ($TOKEN, $VAL) is in %PAIRS:
7104 # - replaces %KEY% with $VAL,
7105 # - enables/disables ?KEY? and ?!KEY?,
7106 # - replaces %?KEY% with TRUE or FALSE.
7107 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
7108 # IFTRUE / IFFALSE, as appropriate.
7111 my ($token, $transform) = @_;
7114 # Must be before the following pattern to exclude the case
7115 # when there is neither IFTRUE nor IFFALSE.
7116 if ($token =~ /^%([\w\-]+)%$/)
7118 return transform_token ($token, $transform, $1);
7120 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7121 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7123 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
7126 elsif ($token =~ /^%\?([\w\-]+)%$/)
7128 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7131 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7133 my $neg = ($1 eq '!') ? 1 : 0;
7134 my $val = transform_token ($token, $transform, $2);
7135 return (!!$val == $neg) ? '##%' : '';
7139 prog_error "Unknown request format: $token";
7145 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7146 # ------------------------------------------
7147 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7149 sub make_paragraphs ($%)
7151 my ($file, %transform) = @_;
7153 # Complete %transform with global options.
7154 # Note that %transform goes last, so it overrides global options.
7155 %transform = ('CYGNUS' => !! option 'cygnus',
7157 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7159 'XZ' => !! option 'dist-xz',
7160 'LZMA' => !! option 'dist-lzma',
7161 'LZIP' => !! option 'dist-lzip',
7162 'BZIP2' => !! option 'dist-bzip2',
7163 'COMPRESS' => !! option 'dist-tarZ',
7164 'GZIP' => ! option 'no-dist-gzip',
7165 'SHAR' => !! option 'dist-shar',
7166 'ZIP' => !! option 'dist-zip',
7168 'INSTALL-INFO' => ! option 'no-installinfo',
7169 'INSTALL-MAN' => ! option 'no-installman',
7170 'HAVE-MANS' => !! var ('MANS'),
7171 'CK-NEWS' => !! option 'check-news',
7173 'SUBDIRS' => !! var ('SUBDIRS'),
7174 'TOPDIR_P' => $relative_dir eq '.',
7176 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7177 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7178 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7180 'LIBTOOL' => !! var ('LIBTOOL'),
7182 'FIRST' => ! $transformed_files{$file},
7185 $transformed_files{$file} = 1;
7186 $_ = $am_file_cache{$file};
7190 verb "reading $file";
7191 # Swallow the whole file.
7192 my $fc_file = new Automake::XFile "< $file";
7193 my $saved_dollar_slash = $/;
7195 $_ = $fc_file->getline;
7196 $/ = $saved_dollar_slash;
7199 # Remove ##-comments.
7200 # Besides we don't need more than two consecutive new-lines.
7201 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7203 $am_file_cache{$file} = $_;
7206 # Substitute Automake template tokens.
7207 s/(?: % \?? [\w\-]+ %
7208 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7210 )/transform($&, \%transform)/gex;
7211 # transform() may have added some ##%-comments to strip.
7212 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7213 # ####### and do not remove the latter.)
7214 s/^[ \t]*(?:##%)+.*\n//gm;
7216 # Split at unescaped new lines.
7217 my @lines = split (/(?<!\\)\n/, $_);
7220 while (defined ($_ = shift @lines))
7223 # If we are a rule, eat as long as we start with a tab.
7224 if (/$RULE_PATTERN/smo)
7226 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7228 $paragraph .= "\n$_";
7230 unshift (@lines, $_);
7233 # If we are a comments, eat as much comments as you can.
7234 elsif (/$COMMENT_PATTERN/smo)
7236 while (defined ($_ = shift @lines)
7237 && $_ =~ /$COMMENT_PATTERN/smo)
7239 $paragraph .= "\n$_";
7241 unshift (@lines, $_);
7244 push @res, $paragraph;
7252 # ($COMMENT, $VARIABLES, $RULES)
7253 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7254 # -------------------------------------------------------------
7255 # Return contents of a file from $libdir/am, automatically skipping
7256 # macros or rules which are already known. $IS_AM iff the caller is
7257 # reading an Automake file (as opposed to the user's Makefile.am).
7258 sub file_contents_internal ($$$%)
7260 my ($is_am, $file, $where, %transform) = @_;
7262 $where->set ($file);
7264 my $result_vars = '';
7265 my $result_rules = '';
7269 # The following flags are used to track rules spanning across
7270 # multiple paragraphs.
7271 my $is_rule = 0; # 1 if we are processing a rule.
7272 my $discard_rule = 0; # 1 if the current rule should not be output.
7274 # We save the conditional stack on entry, and then check to make
7275 # sure it is the same on exit. This lets us conditionally include
7277 my @saved_cond_stack = @cond_stack;
7278 my $cond = new Automake::Condition (@cond_stack);
7280 foreach (make_paragraphs ($file, %transform))
7282 # FIXME: no line number available.
7283 $where->set ($file);
7286 error $where, "blank line following trailing backslash:\n$_"
7288 error $where, "comment following trailing backslash:\n$_"
7294 # Stick empty line before the incoming macro or rule.
7297 elsif (/$COMMENT_PATTERN/mso)
7300 # Stick comments before the incoming macro or rule.
7304 # Handle inclusion of other files.
7305 elsif (/$INCLUDE_PATTERN/o)
7309 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7310 $where->push_context ("`$file' included from here");
7312 my ($com, $vars, $rules)
7313 = file_contents_internal ($is_am, $file, $where, %transform);
7314 $where->pop_context;
7316 $result_vars .= $vars;
7317 $result_rules .= $rules;
7321 # Handling the conditionals.
7322 elsif (/$IF_PATTERN/o)
7324 $cond = cond_stack_if ($1, $2, $file);
7326 elsif (/$ELSE_PATTERN/o)
7328 $cond = cond_stack_else ($1, $2, $file);
7330 elsif (/$ENDIF_PATTERN/o)
7332 $cond = cond_stack_endif ($1, $2, $file);
7336 elsif (/$RULE_PATTERN/mso)
7340 # Separate relationship from optional actions: the first
7341 # `new-line tab" not preceded by backslash (continuation
7344 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7345 my ($relationship, $actions) = ($1, $2 || '');
7347 # Separate targets from dependencies: the first colon.
7348 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7349 my ($targets, $dependencies) = ($1, $2);
7350 # Remove the escaped new lines.
7351 # I don't know why, but I have to use a tmp $flat_deps.
7352 my $flat_deps = &flatten ($dependencies);
7353 my @deps = split (' ', $flat_deps);
7355 foreach (split (' ', $targets))
7357 # FIXME: 1. We are not robust to people defining several targets
7358 # at once, only some of them being in %dependencies. The
7359 # actions from the targets in %dependencies are usually generated
7360 # from the content of %actions, but if some targets in $targets
7361 # are not in %dependencies the ELSE branch will output
7362 # a rule for all $targets (i.e. the targets which are both
7363 # in %dependencies and $targets will have two rules).
7365 # FIXME: 2. The logic here is not able to output a
7366 # multi-paragraph rule several time (e.g. for each condition
7367 # it is defined for) because it only knows the first paragraph.
7369 # FIXME: 3. We are not robust to people defining a subset
7370 # of a previously defined "multiple-target" rule. E.g.
7371 # `foo:' after `foo bar:'.
7373 # Output only if not in FALSE.
7374 if (defined $dependencies{$_} && $cond != FALSE)
7376 &depend ($_, @deps);
7377 register_action ($_, $actions);
7381 # Free-lance dependency. Output the rule for all the
7382 # targets instead of one by one.
7383 my @undefined_conds =
7384 Automake::Rule::define ($targets, $file,
7385 $is_am ? RULE_AUTOMAKE : RULE_USER,
7387 for my $undefined_cond (@undefined_conds)
7389 my $condparagraph = $paragraph;
7390 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7391 $result_rules .= "$spacing$comment$condparagraph\n";
7393 if (scalar @undefined_conds == 0)
7395 # Remember to discard next paragraphs
7396 # if they belong to this rule.
7397 # (but see also FIXME: #2 above.)
7400 $comment = $spacing = '';
7406 elsif (/$ASSIGNMENT_PATTERN/mso)
7408 my ($var, $type, $val) = ($1, $2, $3);
7409 error $where, "variable `$var' with trailing backslash"
7414 Automake::Variable::define ($var,
7415 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7416 $type, $cond, $val, $comment, $where,
7420 $comment = $spacing = '';
7424 # This isn't an error; it is probably some tokens which
7425 # configure is supposed to replace, such as `@SET-MAKE@',
7426 # or some part of a rule cut by an if/endif.
7427 if (! $cond->false && ! ($is_rule && $discard_rule))
7429 s/^/$cond->subst_string/gme;
7430 $result_rules .= "$spacing$comment$_\n";
7432 $comment = $spacing = '';
7436 error ($where, @cond_stack ?
7437 "unterminated conditionals: @cond_stack" :
7438 "too many conditionals closed in include file")
7439 if "@saved_cond_stack" ne "@cond_stack";
7441 return ($comment, $result_vars, $result_rules);
7446 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7447 # ------------------------------------------------
7448 # Return contents of a file from $libdir/am, automatically skipping
7449 # macros or rules which are already known.
7450 sub file_contents ($$%)
7452 my ($basename, $where, %transform) = @_;
7453 my ($comments, $variables, $rules) =
7454 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7456 return "$comments$variables$rules";
7461 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7462 # -----------------------------------------------------
7463 # Find all variable prefixes that are used for install directories. A
7464 # prefix `zar' qualifies iff:
7466 # * `zardir' is a variable.
7467 # * `zar_PRIMARY' is a variable.
7469 # As a side effect, it looks for misspellings. It is an error to have
7470 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7471 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7472 # of the same name (with "dir" appended) exists. For instance, if the
7473 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7474 # This is to provide a little extra flexibility in those cases which
7476 sub am_primary_prefixes ($$@)
7478 my ($primary, $can_dist, @prefixes) = @_;
7481 my %valid = map { $_ => 0 } @prefixes;
7482 $valid{'EXTRA'} = 0;
7483 foreach my $var (variables $primary)
7485 # Automake is allowed to define variables that look like primaries
7486 # but which aren't. E.g. INSTALL_sh_DATA.
7487 # Autoconf can also define variables like INSTALL_DATA, so
7488 # ignore all configure variables (at least those which are not
7489 # redefined in Makefile.am).
7490 # FIXME: We should make sure that these variables are not
7491 # conditionally defined (or else adjust the condition below).
7492 my $def = $var->def (TRUE);
7493 next if $def && $def->owner != VAR_MAKEFILE;
7495 my $varname = $var->name;
7497 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7499 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7500 if ($dist ne '' && ! $can_dist)
7503 "invalid variable `$varname': `dist' is forbidden");
7505 # Standard directories must be explicitly allowed.
7506 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7509 "`${X}dir' is not a legitimate directory " .
7512 # A not explicitly valid directory is allowed if Xdir is defined.
7513 elsif (! defined $valid{$X} &&
7514 $var->requires_variables ("`$varname' is used", "${X}dir"))
7516 # Nothing to do. Any error message has been output
7517 # by $var->requires_variables.
7521 # Ensure all extended prefixes are actually used.
7522 $valid{"$base$dist$X"} = 1;
7527 prog_error "unexpected variable name: $varname";
7531 # Return only those which are actually defined.
7532 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7536 # Handle `where_HOW' variable magic. Does all lookups, generates
7537 # install code, and possibly generates code to define the primary
7538 # variable. The first argument is the name of the .am file to munge,
7539 # the second argument is the primary variable (e.g. HEADERS), and all
7540 # subsequent arguments are possible installation locations.
7542 # Returns list of [$location, $value] pairs, where
7543 # $value's are the values in all where_HOW variable, and $location
7544 # there associated location (the place here their parent variables were
7547 # FIXME: this should be rewritten to be cleaner. It should be broken
7548 # up into multiple functions.
7550 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7557 my $default_dist = 0;
7560 if ($args[0] eq '-noextra')
7564 elsif ($args[0] eq '-candist')
7568 elsif ($args[0] eq '-defaultdist')
7573 elsif ($args[0] !~ /^-/)
7580 my ($file, $primary, @prefix) = @args;
7582 # Now that configure substitutions are allowed in where_HOW
7583 # variables, it is an error to actually define the primary. We
7584 # allow `JAVA', as it is customarily used to mean the Java
7585 # interpreter. This is but one of several Java hacks. Similarly,
7586 # `PYTHON' is customarily used to mean the Python interpreter.
7587 reject_var $primary, "`$primary' is an anachronism"
7588 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7590 # Get the prefixes which are valid and actually used.
7591 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7593 # If a primary includes a configure substitution, then the EXTRA_
7594 # form is required. Otherwise we can't properly do our job.
7600 foreach my $X (@prefix)
7602 my $nodir_name = $X;
7603 my $one_name = $X . '_' . $primary;
7604 my $one_var = var $one_name;
7606 my $strip_subdir = 1;
7607 # If subdir prefix should be preserved, do so.
7608 if ($nodir_name =~ /^nobase_/)
7611 $nodir_name =~ s/^nobase_//;
7614 # If files should be distributed, do so.
7618 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7619 || (! $default_dist && $nodir_name =~ /^dist_/));
7620 $nodir_name =~ s/^(dist|nodist)_//;
7624 # Use the location of the currently processed variable.
7625 # We are not processing a particular condition, so pick the first
7627 my $tmpcond = $one_var->conditions->one_cond;
7628 my $where = $one_var->rdef ($tmpcond)->location->clone;
7630 # Append actual contents of where_PRIMARY variable to
7631 # @result, skipping @substitutions@.
7632 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7634 my ($loc, $value) = @$locvals;
7635 # Skip configure substitutions.
7636 if ($value =~ /^\@.*\@$/)
7638 if ($nodir_name eq 'EXTRA')
7641 "`$one_name' contains configure substitution, "
7644 # Check here to make sure variables defined in
7645 # configure.ac do not imply that EXTRA_PRIMARY
7647 elsif (! defined $configure_vars{$one_name})
7649 $require_extra = $one_name
7655 # Strip any $(EXEEXT) suffix the user might have added, or this
7656 # will confuse &handle_source_transform and &check_canonical_spelling.
7657 # We'll add $(EXEEXT) back later anyway.
7658 # Do it here rather than in handle_programs so the uniquifying at the
7659 # end of this function works.
7660 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7661 if $primary eq 'PROGRAMS';
7663 push (@result, $locvals);
7666 # A blatant hack: we rewrite each _PROGRAMS primary to include
7668 append_exeext { 1 } $one_name
7669 if $primary eq 'PROGRAMS';
7670 # "EXTRA" shouldn't be used when generating clean targets,
7671 # all, or install targets. We used to warn if EXTRA_FOO was
7672 # defined uselessly, but this was annoying.
7674 if $nodir_name eq 'EXTRA';
7676 if ($nodir_name eq 'check')
7678 push (@check, '$(' . $one_name . ')');
7682 push (@used, '$(' . $one_name . ')');
7685 # Is this to be installed?
7686 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7688 # If so, with install-exec? (or install-data?).
7689 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7691 my $check_options_p = $install_p && !! option 'std-options';
7693 # Use the location of the currently processed variable as context.
7694 $where->push_context ("while processing `$one_name'");
7696 # The variable containing all files to distribute.
7697 my $distvar = "\$($one_name)";
7698 $distvar = shadow_unconditionally ($one_name, $where)
7699 if ($dist_p && $one_var->has_conditional_contents);
7701 # Singular form of $PRIMARY.
7702 (my $one_primary = $primary) =~ s/S$//;
7703 $output_rules .= &file_contents ($file, $where,
7704 PRIMARY => $primary,
7705 ONE_PRIMARY => $one_primary,
7707 NDIR => $nodir_name,
7708 BASE => $strip_subdir,
7711 INSTALL => $install_p,
7713 DISTVAR => $distvar,
7714 'CK-OPTS' => $check_options_p);
7717 # The JAVA variable is used as the name of the Java interpreter.
7718 # The PYTHON variable is used as the name of the Python interpreter.
7719 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7722 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7723 $output_vars .= "\n";
7726 err_var ($require_extra,
7727 "`$require_extra' contains configure substitution,\n"
7728 . "but `EXTRA_$primary' not defined")
7729 if ($require_extra && ! var ('EXTRA_' . $primary));
7731 # Push here because PRIMARY might be configure time determined.
7732 push (@all, '$(' . $primary . ')')
7733 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7735 # Make the result unique. This lets the user use conditionals in
7736 # a natural way, but still lets us program lazily -- we don't have
7737 # to worry about handling a particular object more than once.
7738 # We will keep only one location per object.
7740 for my $pair (@result)
7742 my ($loc, $val) = @$pair;
7743 $result{$val} = $loc;
7745 my @l = sort keys %result;
7746 return map { [$result{$_}->clone, $_] } @l;
7750 ################################################################
7752 # Each key in this hash is the name of a directory holding a
7753 # Makefile.in. These variables are local to `is_make_dir'.
7755 my $make_dirs_set = 0;
7760 if (! $make_dirs_set)
7762 foreach my $iter (@configure_input_files)
7764 $make_dirs{dirname ($iter)} = 1;
7766 # We also want to notice Makefile.in's.
7767 foreach my $iter (@other_input_files)
7769 if ($iter =~ /Makefile\.in$/)
7771 $make_dirs{dirname ($iter)} = 1;
7776 return defined $make_dirs{$dir};
7779 ################################################################
7781 # Find the aux dir. This should match the algorithm used by
7782 # ./configure. (See the Autoconf documentation for for
7783 # AC_CONFIG_AUX_DIR.)
7784 sub locate_aux_dir ()
7786 if (! $config_aux_dir_set_in_configure_ac)
7788 # The default auxiliary directory is the first
7789 # of ., .., or ../.. that contains install-sh.
7790 # Assume . if install-sh doesn't exist yet.
7791 for my $dir (qw (. .. ../..))
7793 if (-f "$dir/install-sh")
7795 $config_aux_dir = $dir;
7799 $config_aux_dir = '.' unless $config_aux_dir;
7801 # Avoid unsightly '/.'s.
7802 $am_config_aux_dir =
7803 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7804 $am_config_aux_dir =~ s,/*$,,;
7808 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7809 # --------------------------------------------------
7810 # See if we want to push this file onto dist_common. This function
7811 # encodes the rules for deciding when to do so.
7812 sub maybe_push_required_file
7814 my ($dir, $file, $fullfile) = @_;
7816 if ($dir eq $relative_dir)
7818 push_dist_common ($file);
7821 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7823 # If we are doing the topmost directory, and the file is in a
7824 # subdir which does not have a Makefile, then we distribute it
7827 # If a required file is above the source tree, it is important
7828 # to prefix it with `$(srcdir)' so that no VPATH search is
7829 # performed. Otherwise problems occur with Make implementations
7830 # that rewrite and simplify rules whose dependencies are found in a
7831 # VPATH location. Here is an example with OSF1/Tru64 Make.
7843 # Dependency `../a' was found in `sub/../a', but this make
7844 # implementation simplified it as `a'. (Note that the sub/
7845 # directory does not even exist.)
7847 # This kind of VPATH rewriting seems hard to cancel. The
7848 # distdir.am hack against VPATH rewriting works only when no
7849 # simplification is done, i.e., for dependencies which are in
7850 # subdirectories, not in enclosing directories. Hence, in
7851 # the latter case we use a full path to make sure no VPATH
7853 $fullfile = '$(srcdir)/' . $fullfile
7854 if $dir =~ m,^\.\.(?:$|/),;
7856 push_dist_common ($fullfile);
7863 # If a file name appears as a key in this hash, then it has already
7864 # been checked for. This allows us not to report the same error more
7866 my %required_file_not_found = ();
7868 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7869 # --------------------------------------------------------------
7870 # Verify that the file must exist in $DIRECTORY, or install it.
7871 # $MYSTRICT is the strictness level at which this file becomes required.
7872 sub require_file_internal ($$$@)
7874 my ($where, $mystrict, $dir, @files) = @_;
7876 foreach my $file (@files)
7878 my $fullfile = "$dir/$file";
7880 my $dangling_sym = 0;
7882 if (-l $fullfile && ! -f $fullfile)
7886 elsif (dir_has_case_matching_file ($dir, $file))
7889 maybe_push_required_file ($dir, $file, $fullfile);
7892 # `--force-missing' only has an effect if `--add-missing' is
7894 if ($found_it && (! $add_missing || ! $force_missing))
7900 # If we've already looked for it, we're done. You might
7901 # wonder why we don't do this before searching for the
7902 # file. If we do that, then something like
7903 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7907 next if defined $required_file_not_found{$fullfile};
7908 $required_file_not_found{$fullfile} = 1;
7911 if ($strictness >= $mystrict)
7913 if ($dangling_sym && $add_missing)
7922 # Only install missing files according to our desired
7924 my $message = "required file `$fullfile' not found";
7927 if (-f "$libdir/$file")
7931 # Install the missing file. Symlink if we
7932 # can, copy if we must. Note: delete the file
7933 # first, in case it is a dangling symlink.
7934 $message = "installing `$fullfile'";
7936 # The license file should not be volatile.
7937 if ($file eq "COPYING")
7939 $message .= " using GNU General Public License v3 file";
7940 $trailer2 = "\n Consider adding the COPYING file"
7941 . " to the version control system"
7942 . "\n for your code, to avoid questions"
7943 . " about which license your project uses.";
7946 # Windows Perl will hang if we try to delete a
7947 # file that doesn't exist.
7948 unlink ($fullfile) if -f $fullfile;
7949 if ($symlink_exists && ! $copy_missing)
7951 if (! symlink ("$libdir/$file", $fullfile)
7955 $trailer = "; error while making link: $!";
7958 elsif (system ('cp', "$libdir/$file", $fullfile))
7961 $trailer = "\n error while copying";
7963 set_dir_cache_file ($dir, $file);
7966 if (! maybe_push_required_file (dirname ($fullfile),
7969 if (! $found_it && ! $automake_will_process_aux_dir)
7971 # We have added the file but could not push it
7972 # into DIST_COMMON, probably because this is
7973 # an auxiliary file and we are not processing
7974 # the top level Makefile. Furthermore Automake
7975 # hasn't been asked to create the Makefile.in
7976 # that distributes the aux dir files.
7977 error ($where, 'Please make a full run of automake'
7978 . " so $fullfile gets distributed.");
7984 $trailer = "\n `automake --add-missing' can install `$file'"
7985 if -f "$libdir/$file";
7988 # If --force-missing was specified, and we have
7989 # actually found the file, then do nothing.
7991 if $found_it && $force_missing;
7993 # If we couldn't install the file, but it is a target in
7994 # the Makefile, don't print anything. This allows files
7995 # like README, AUTHORS, or THANKS to be generated.
7997 if !$suppress && rule $file;
7999 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
8005 # &require_file ($WHERE, $MYSTRICT, @FILES)
8006 # -----------------------------------------
8007 sub require_file ($$@)
8009 my ($where, $mystrict, @files) = @_;
8010 require_file_internal ($where, $mystrict, $relative_dir, @files);
8013 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8014 # -----------------------------------------------------------
8015 sub require_file_with_macro ($$$@)
8017 my ($cond, $macro, $mystrict, @files) = @_;
8018 $macro = rvar ($macro) unless ref $macro;
8019 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8022 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8023 # ----------------------------------------------------------------
8024 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
8025 # must be in that directory. Otherwise expect it in the current directory.
8026 sub require_libsource_with_macro ($$$@)
8028 my ($cond, $macro, $mystrict, @files) = @_;
8029 $macro = rvar ($macro) unless ref $macro;
8030 if ($config_libobj_dir)
8032 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
8033 $config_libobj_dir, @files);
8037 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8041 # Queue to push require_conf_file requirements to.
8042 my $required_conf_file_queue;
8044 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
8045 # -------------------------------------------------------------------------
8046 sub queue_required_conf_file ($$$$@)
8048 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
8052 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
8056 @serial_loc = (QUEUE_STRING, $where);
8058 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
8061 # &require_queued_conf_file ($QUEUE)
8062 # ----------------------------------
8063 sub require_queued_conf_file ($)
8067 my $dir = $queue->dequeue ();
8068 my $loc_key = $queue->dequeue ();
8069 if ($loc_key eq QUEUE_LOCATION)
8071 $where = Automake::Location::deserialize ($queue);
8073 elsif ($loc_key eq QUEUE_STRING)
8075 $where = $queue->dequeue ();
8079 prog_error "unexpected key $loc_key";
8081 my $mystrict = $queue->dequeue ();
8082 my $nfiles = $queue->dequeue ();
8084 push @files, $queue->dequeue ()
8085 foreach (1 .. $nfiles);
8087 # Dequeuing happens outside of per-makefile context, so we have to
8088 # set the variables used by require_file_internal and the functions
8090 $relative_dir = $dir;
8091 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8094 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
8095 # ----------------------------------------------
8096 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
8097 # worker threads may queue up the action to be serialized by the master.
8099 # FIXME: this seriously relies on the semantics of require_file_internal
8100 # and maybe_push_required_file, in that we exploit the fact that only the
8101 # contents of the last handled output file may be impacted (which in turn
8102 # is dealt with by the master thread).
8103 sub require_conf_file ($$@)
8105 my ($where, $mystrict, @files) = @_;
8106 if (defined $required_conf_file_queue)
8108 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
8109 $relative_dir, $where, $mystrict, @files);
8113 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8118 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8119 # ----------------------------------------------------------------
8120 sub require_conf_file_with_macro ($$$@)
8122 my ($cond, $macro, $mystrict, @files) = @_;
8123 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8127 ################################################################
8129 # &require_build_directory ($DIRECTORY)
8130 # -------------------------------------
8131 # Emit rules to create $DIRECTORY if needed, and return
8132 # the file that any target requiring this directory should be made
8134 # We don't want to emit the rule twice, and want to reuse it
8135 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8136 sub require_build_directory ($)
8138 my $directory = shift;
8140 return $directory_map{$directory} if exists $directory_map{$directory};
8142 my $cdir = File::Spec->canonpath ($directory);
8144 if (exists $directory_map{$cdir})
8146 my $stamp = $directory_map{$cdir};
8147 $directory_map{$directory} = $stamp;
8151 my $dirstamp = "$cdir/\$(am__dirstamp)";
8153 $directory_map{$directory} = $dirstamp;
8154 $directory_map{$cdir} = $dirstamp;
8156 # Set a variable for the dirstamp basename.
8157 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8158 '$(am__leading_dot)dirstamp');
8160 # Directory must be removed by `make distclean'.
8161 $clean_files{$dirstamp} = DIST_CLEAN;
8163 $output_rules .= ("$dirstamp:\n"
8164 . "\t\@\$(MKDIR_P) $directory\n"
8165 . "\t\@: > $dirstamp\n");
8170 # &require_build_directory_maybe ($FILE)
8171 # --------------------------------------
8172 # If $FILE lies in a subdirectory, emit a rule to create this
8173 # directory and return the file that $FILE should be made
8174 # dependent upon. Otherwise, just return the empty string.
8175 sub require_build_directory_maybe ($)
8178 my $directory = dirname ($file);
8180 if ($directory ne '.')
8182 return require_build_directory ($directory);
8190 ################################################################
8192 # Push a list of files onto dist_common.
8193 sub push_dist_common
8195 prog_error "push_dist_common run after handle_dist"
8196 if $handle_dist_run;
8197 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8198 '', INTERNAL, VAR_PRETTY);
8202 ################################################################
8204 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8205 # ----------------------------------------------
8206 # Generate a Makefile.in given the name of the corresponding Makefile and
8207 # the name of the file output by config.status.
8208 sub generate_makefile ($$)
8210 my ($makefile_am, $makefile_in) = @_;
8212 # Reset all the Makefile.am related variables.
8213 initialize_per_input;
8215 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8216 # warnings for this file. So hold any warning issued before
8217 # we have processed AUTOMAKE_OPTIONS.
8218 buffer_messages ('warning');
8220 # Name of input file ("Makefile.am") and output file
8221 # ("Makefile.in"). These have no directory components.
8222 $am_file_name = basename ($makefile_am);
8223 $in_file_name = basename ($makefile_in);
8225 # $OUTPUT is encoded. If it contains a ":" then the first element
8226 # is the real output file, and all remaining elements are input
8227 # files. We don't scan or otherwise deal with these input files,
8228 # other than to mark them as dependencies. See
8229 # &scan_autoconf_files for details.
8230 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8232 $relative_dir = dirname ($makefile);
8233 $am_relative_dir = dirname ($makefile_am);
8234 $topsrcdir = backname ($relative_dir);
8236 read_main_am_file ($makefile_am);
8239 # Process buffered warnings.
8241 # Fatal error. Just return, so we can continue with next file.
8244 # Process buffered warnings.
8247 # There are a few install-related variables that you should not define.
8248 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8253 my $def = $v->def (TRUE);
8254 prog_error "$var not defined in condition TRUE"
8256 reject_var $var, "`$var' should not be defined"
8257 if $def->owner != VAR_AUTOMAKE;
8261 # Catch some obsolete variables.
8262 msg_var ('obsolete', 'INCLUDES',
8263 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8264 if var ('INCLUDES');
8266 # Must do this after reading .am file.
8267 define_variable ('subdir', $relative_dir, INTERNAL);
8269 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8270 # recursive rules are enabled.
8271 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8272 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8274 # Check first, because we might modify some state.
8276 check_gnu_standards;
8277 check_gnits_standards;
8279 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8286 # These must be run after all the sources are scanned. They
8287 # use variables defined by &handle_libraries, &handle_ltlibraries,
8288 # or &handle_programs.
8293 # Variables used by distdir.am and tags.am.
8294 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8295 if (! option 'no-dist')
8297 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8310 handle_minor_options;
8311 # Must come after handle_programs so that %known_programs is up-to-date.
8314 # This must come after most other rules.
8318 do_check_merge_target;
8319 handle_all ($makefile);
8322 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8324 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8326 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8328 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8332 handle_clean ($makefile);
8333 handle_factored_dependencies;
8335 # Comes last, because all the above procedures may have
8336 # defined or overridden variables.
8337 $output_vars .= output_variables;
8341 my ($out_file) = $output_directory . '/' . $makefile_in;
8343 if ($exit_code != 0)
8345 verb "not writing $out_file because of earlier errors";
8349 if (! -d ($output_directory . '/' . $am_relative_dir))
8351 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8354 # We make sure that `all:' is the first target.
8356 "$output_vars$output_all$output_header$output_rules$output_trailer";
8358 # Decide whether we must update the output file or not.
8359 # We have to update in the following situations.
8360 # * $force_generation is set.
8361 # * any of the output dependencies is younger than the output
8362 # * the contents of the output is different (this can happen
8363 # if the project has been populated with a file listed in
8364 # @common_files since the last run).
8365 # Output's dependencies are split in two sets:
8366 # * dependencies which are also configure dependencies
8367 # These do not change between each Makefile.am
8368 # * other dependencies, specific to the Makefile.am being processed
8369 # (such as the Makefile.am itself, or any Makefile fragment
8371 my $timestamp = mtime $out_file;
8372 if (! $force_generation
8373 && $configure_deps_greatest_timestamp < $timestamp
8374 && $output_deps_greatest_timestamp < $timestamp
8375 && $output eq contents ($out_file))
8377 verb "$out_file unchanged";
8378 # No need to update.
8385 or fatal "cannot remove $out_file: $!\n";
8388 my $gm_file = new Automake::XFile "> $out_file";
8389 verb "creating $out_file";
8390 print $gm_file $output;
8393 ################################################################
8398 ################################################################
8400 # Helper function for usage().
8401 sub print_autodist_files (@)
8403 my @lcomm = sort (&uniq (@_));
8406 format USAGE_FORMAT =
8407 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8408 $four[0], $four[1], $four[2], $four[3]
8410 local $~ = "USAGE_FORMAT";
8413 my $rows = int(@lcomm / $cols);
8414 my $rest = @lcomm % $cols;
8425 for (my $y = 0; $y < $rows; $y++)
8427 @four = ("", "", "", "");
8428 for (my $x = 0; $x < $cols; $x++)
8430 last if $y + 1 == $rows && $x == $rest;
8432 my $idx = (($x > $rest)
8433 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8437 $four[$x] = $lcomm[$idx];
8444 # Print usage information.
8447 print "Usage: $0 [OPTION] ... [Makefile]...
8449 Generate Makefile.in for configure from Makefile.am.
8452 --help print this help, then exit
8453 --version print version number, then exit
8454 -v, --verbose verbosely list files processed
8455 --no-force only update Makefile.in's that are out of date
8456 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8458 Dependency tracking:
8459 -i, --ignore-deps disable dependency tracking code
8460 --include-deps enable dependency tracking code
8463 --cygnus assume program is part of Cygnus-style tree
8464 --foreign set strictness to foreign
8465 --gnits set strictness to gnits
8466 --gnu set strictness to gnu
8469 -a, --add-missing add missing standard files to package
8470 --libdir=DIR directory storing library files
8471 -c, --copy with -a, copy missing files (default is symlink)
8472 -f, --force-missing force update of standard files
8475 Automake::ChannelDefs::usage;
8477 print "\nFiles automatically distributed if found " .
8479 print_autodist_files @common_files;
8480 print "\nFiles automatically distributed if found " .
8481 "(under certain conditions):\n";
8482 print_autodist_files @common_sometimes;
8485 Report bugs to <@PACKAGE_BUGREPORT@>.
8486 GNU Automake home page: <@PACKAGE_URL@>.
8487 General help using GNU software: <http://www.gnu.org/gethelp/>.
8490 # --help always returns 0 per GNU standards.
8497 # Print version information
8501 automake (GNU $PACKAGE) $VERSION
8502 Copyright (C) 2011 Free Software Foundation, Inc.
8503 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8504 This is free software: you are free to change and redistribute it.
8505 There is NO WARRANTY, to the extent permitted by law.
8507 Written by Tom Tromey <tromey\@redhat.com>
8508 and Alexandre Duret-Lutz <adl\@gnu.org>.
8510 # --version always returns 0 per GNU standards.
8514 ################################################################
8516 # Parse command line.
8517 sub parse_arguments ()
8520 set_strictness ('gnu');
8522 my $cli_where = new Automake::Location;
8525 'version' => \&version,
8527 'libdir=s' => \$libdir,
8528 'gnu' => sub { set_strictness ('gnu'); },
8529 'gnits' => sub { set_strictness ('gnits'); },
8530 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8531 'foreign' => sub { set_strictness ('foreign'); },
8532 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8533 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8535 'no-force' => sub { $force_generation = 0; },
8536 'f|force-missing' => \$force_missing,
8537 'o|output-dir=s' => \$output_directory,
8538 'a|add-missing' => \$add_missing,
8539 'c|copy' => \$copy_missing,
8540 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8541 'W|warnings=s' => \&parse_warnings,
8542 # These long options (--Werror and --Wno-error) for backward
8543 # compatibility. Use -Werror and -Wno-error today.
8544 'Werror' => sub { parse_warnings 'W', 'error'; },
8545 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8548 use Automake::Getopt ();
8549 Automake::Getopt::parse_options %cli_options;
8551 if (defined $output_directory)
8553 msg 'obsolete', "`--output-dir' is deprecated\n";
8557 # In the next release we'll remove this entirely.
8558 $output_directory = '.';
8561 return unless @ARGV;
8564 foreach my $arg (@ARGV)
8566 fatal ("empty argument\nTry `$0 --help' for more information.")
8569 # Handle $local:$input syntax.
8570 my ($local, @rest) = split (/:/, $arg);
8571 @rest = ("$local.in",) unless @rest;
8572 my $input = locate_am @rest;
8575 push @input_files, $input;
8576 $output_files{$input} = join (':', ($local, @rest));
8580 error "no Automake input file found for `$arg'";
8584 fatal "no input file found among supplied arguments"
8585 if $errspec && ! @input_files;
8589 # handle_makefile ($MAKEFILE_IN)
8590 # ------------------------------
8591 # Deal with $MAKEFILE_IN.
8592 sub handle_makefile ($)
8595 ($am_file = $file) =~ s/\.in$//;
8596 if (! -f ($am_file . '.am'))
8598 error "`$am_file.am' does not exist";
8602 # Any warning setting now local to this Makefile.am.
8605 generate_makefile ($am_file . '.am', $file);
8607 # Back out any warning setting.
8612 # handle_makefiles_serial ()
8613 # --------------------------
8614 # Deal with all makefiles, without threads.
8615 sub handle_makefiles_serial ()
8617 foreach my $file (@input_files)
8619 handle_makefile ($file);
8623 # get_number_of_threads ()
8624 # ------------------------
8625 # Logic for deciding how many worker threads to use.
8626 sub get_number_of_threads
8628 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8631 unless $nthreads =~ /^[0-9]+$/;
8633 # It doesn't make sense to use more threads than makefiles,
8634 my $max_threads = @input_files;
8636 # but a single worker thread is helpful for exposing bugs.
8637 if ($automake_will_process_aux_dir && $max_threads > 1)
8641 if ($nthreads > $max_threads)
8643 $nthreads = $max_threads;
8648 # handle_makefiles_threaded ($NTHREADS)
8649 # -------------------------------------
8650 # Deal with all makefiles, using threads. The general strategy is to
8651 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8652 # worker threads push back everything that needs serialization:
8653 # * warning and (normal) error messages, for stable stderr output
8654 # order and content (avoiding duplicates, for example),
8655 # * races when installing aux files (and respective messages),
8656 # * races when collecting aux files for distribution.
8658 # The latter requires that the makefile that deals with the aux dir
8659 # files be handled last, done by the master thread.
8660 sub handle_makefiles_threaded ($)
8662 my ($nthreads) = @_;
8664 my @queued_input_files = @input_files;
8665 my $last_input_file = undef;
8666 if ($automake_will_process_aux_dir)
8668 $last_input_file = pop @queued_input_files;
8671 # The file queue distributes all makefiles, the message queues
8672 # collect all serializations needed for respective files.
8673 my $file_queue = Thread::Queue->new;
8675 foreach my $file (@queued_input_files)
8677 $msg_queues{$file} = Thread::Queue->new;
8680 verb "spawning $nthreads worker threads";
8681 my @threads = (1 .. $nthreads);
8682 foreach my $t (@threads)
8684 $t = threads->new (sub
8686 while (my $file = $file_queue->dequeue)
8688 verb "handling $file";
8689 my $queue = $msg_queues{$file};
8690 setup_channel_queue ($queue, QUEUE_MESSAGE);
8691 $required_conf_file_queue = $queue;
8692 handle_makefile ($file);
8693 $queue->enqueue (undef);
8694 setup_channel_queue (undef, undef);
8695 $required_conf_file_queue = undef;
8701 # Queue all normal makefiles.
8702 verb "queuing " . @queued_input_files . " input files";
8703 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8705 # Collect and process serializations.
8706 foreach my $file (@queued_input_files)
8708 verb "dequeuing messages for " . $file;
8709 reset_local_duplicates ();
8710 my $queue = $msg_queues{$file};
8711 while (my $key = $queue->dequeue)
8713 if ($key eq QUEUE_MESSAGE)
8715 pop_channel_queue ($queue);
8717 elsif ($key eq QUEUE_CONF_FILE)
8719 require_queued_conf_file ($queue);
8723 prog_error "unexpected key $key";
8728 foreach my $t (@threads)
8730 my @exit_thread = $t->join;
8731 $exit_code = $exit_thread[0]
8732 if ($exit_thread[0] > $exit_code);
8735 # The master processes the last file.
8736 if ($automake_will_process_aux_dir)
8738 verb "processing last input file";
8739 handle_makefile ($last_input_file);
8743 ################################################################
8745 # Parse the WARNINGS environment variable.
8748 # Parse command line.
8751 $configure_ac = require_configure_ac;
8753 # Do configure.ac scan only once.
8754 scan_autoconf_files;
8759 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8760 if -f 'Makefile.am';
8761 fatal ("no `Makefile.am' found for any configure output$msg");
8764 my $nthreads = get_number_of_threads ();
8766 if ($perl_threads && $nthreads >= 1)
8768 handle_makefiles_threaded ($nthreads);
8772 handle_makefiles_serial ();
8778 ### Setup "GNU" style for perl-mode and cperl-mode.
8780 ## perl-indent-level: 2
8781 ## perl-continued-statement-offset: 2
8782 ## perl-continued-brace-offset: 0
8783 ## perl-brace-offset: 0
8784 ## perl-brace-imaginary-offset: 0
8785 ## perl-label-offset: -2
8786 ## cperl-indent-level: 2
8787 ## cperl-brace-offset: 0
8788 ## cperl-continued-brace-offset: 0
8789 ## cperl-label-offset: -2
8790 ## cperl-extra-newline-before-brace: t
8791 ## cperl-merge-trailing-else: nil
8792 ## cperl-continued-statement-offset: 2