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 compile config.guess config.rpath config.sub
239 depcomp elisp-comp install-sh libversion.in mdate-sh missing
240 mkinstalldirs py-compile texinfo.tex ylwrap),
241 @libtool_files, @libtool_sometimes);
243 # Commonly used files we auto-include, but only sometimes. This list
244 # is used for the --help output only.
245 my @common_sometimes =
246 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
247 configure.ac configure.in stamp-vti);
249 # Standard directories from the GNU Coding Standards, and additional
250 # pkg* directories from Automake. Stored in a hash for fast member check.
251 my %standard_prefix =
252 map { $_ => 1 } (qw(bin data dataroot 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_CC_C_O
402 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
403 my %required_aux_file = ();
405 # Where AM_INIT_AUTOMAKE is called;
406 my $seen_init_automake = 0;
408 # TRUE if we've seen AM_AUTOMAKE_VERSION.
409 my $seen_automake_version = 0;
411 # Hash table of discovered configure substitutions. Keys are names,
412 # values are `FILE:LINE' strings which are used by error message
414 my %configure_vars = ();
416 # Ignored configure substitutions (i.e., variables not to be output in
418 my %ignored_configure_vars = ();
420 # Files included by $configure_ac.
421 my @configure_deps = ();
423 # Greatest timestamp of configure's dependencies.
424 my $configure_deps_greatest_timestamp = 0;
426 # Hash table of AM_CONDITIONAL variables seen in configure.
427 my %configure_cond = ();
429 # This maps extensions onto language names.
430 my %extension_map = ();
432 # List of the DIST_COMMON files we discovered while reading
434 my $configure_dist_common = '';
436 # This maps languages names onto objects.
438 # Maps each linker variable onto a language object.
439 my %link_languages = ();
441 # maps extensions to needed source flags.
442 my %sourceflags = ();
444 # List of targets we must always output.
445 # FIXME: Complete, and remove falsely required targets.
446 my %required_targets =
459 # FIXME: Not required, temporary hacks.
460 # Well, actually they are sort of required: the -recursive
461 # targets will run them anyway...
467 'install-data-am' => 1,
468 'install-exec-am' => 1,
469 'install-html-am' => 1,
470 'install-dvi-am' => 1,
471 'install-pdf-am' => 1,
472 'install-ps-am' => 1,
473 'install-info-am' => 1,
474 'installcheck-am' => 1,
480 # Set to 1 if this run will create the Makefile.in that distributes
481 # the files in config_aux_dir.
482 my $automake_will_process_aux_dir = 0;
484 # The name of the Makefile currently being processed.
488 ################################################################
490 ## ------------------------------------------ ##
491 ## Variables reset by &initialize_per_input. ##
492 ## ------------------------------------------ ##
494 # Basename and relative dir of the input file.
498 # Same but wrt Makefile.in.
502 # Relative path to the top directory.
505 # Greatest timestamp of the output's dependencies (excluding
506 # configure's dependencies).
507 my $output_deps_greatest_timestamp;
509 # These variables are used when generating each Makefile.in.
510 # They hold the Makefile.in until it is ready to be printed.
517 # This is the conditional stack, updated on if/else/endif, and
518 # used to build Condition objects.
521 # This holds the set of included files.
524 # List of dependencies for the obvious targets.
529 # Keys in this hash table are files to delete. The associated
530 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
533 # Keys in this hash table are object files or other files in
534 # subdirectories which need to be removed. This only holds files
535 # which are created by compilations. The value in the hash indicates
536 # when the file should be removed.
537 my %compile_clean_files;
539 # Keys in this hash table are directories where we expect to build a
540 # libtool object. We use this information to decide what directories
542 my %libtool_clean_directories;
544 # Value of `$(SOURCES)', used by tags.am.
546 # Sources which go in the distribution.
549 # This hash maps object file names onto their corresponding source
550 # file names. This is used to ensure that each object is created
551 # by a single source file.
554 # This hash maps object file names onto an integer value representing
555 # whether this object has been built via ordinary compilation or
556 # libtool compilation (the COMPILE_* constants).
557 my %object_compilation_map;
560 # This keeps track of the directories for which we've already
561 # created dirstamp code. Keys are directories, values are stamp files.
562 # Several keys can share the same stamp files if they are equivalent
563 # (as are `.//foo' and `foo').
569 # This is a list of all targets to run during "make dist".
572 # Keep track of all programs declared in this Makefile, without
573 # $(EXEEXT). @substitutions@ are not listed.
577 # Keys in this hash are the basenames of files which must depend on
578 # ansi2knr. Values are either the empty string, or the directory in
579 # which the ANSI source file appears; the directory must have a
583 # This keeps track of which extensions we've seen (that we care
587 # This is random scratch space for the language finish functions.
588 # Don't randomly overwrite it; examine other uses of keys first.
589 my %language_scratch;
591 # We keep track of which objects need special (per-executable)
592 # handling on a per-language basis.
593 my %lang_specific_files;
595 # This is set when `handle_dist' has finished. Once this happens,
596 # we should no longer push on dist_common.
599 # Used to store a set of linkers needed to generate the sources currently
600 # under consideration.
603 # True if we need `LINK' defined. This is a hack.
606 # Was get_object_extension run?
607 # FIXME: This is a hack. a better switch should be found.
608 my $get_object_extension_was_run;
610 # Record each file processed by make_paragraphs.
611 my %transformed_files;
614 ################################################################
616 ## ---------------------------------------------- ##
617 ## Variables not reset by &initialize_per_input. ##
618 ## ---------------------------------------------- ##
620 # Cache each file processed by make_paragraphs.
621 # (This is different from %transformed_files because
622 # %transformed_files is reset for each file while %am_file_cache
623 # it global to the run.)
626 ################################################################
628 # var_SUFFIXES_trigger ($TYPE, $VALUE)
629 # ------------------------------------
630 # This is called by Automake::Variable::define() when SUFFIXES
631 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
632 # The work here needs to be performed as a side-effect of the
633 # macro_define() call because SUFFIXES definitions impact
634 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
636 sub var_SUFFIXES_trigger ($$)
638 my ($type, $value) = @_;
639 accept_extensions (split (' ', $value));
641 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
643 ################################################################
645 ## --------------------------------- ##
646 ## Forward subroutine declarations. ##
647 ## --------------------------------- ##
648 sub register_language (%);
649 sub file_contents_internal ($$$%);
650 sub define_files_variable ($\@$$);
653 # &initialize_per_input ()
654 # ------------------------
655 # (Re)-Initialize per-Makefile.am variables.
656 sub initialize_per_input ()
658 reset_local_duplicates ();
660 $am_file_name = undef;
661 $am_relative_dir = undef;
663 $in_file_name = undef;
664 $relative_dir = undef;
667 $output_deps_greatest_timestamp = 0;
673 $output_trailer = '';
675 Automake::Options::reset;
676 Automake::Variable::reset;
677 Automake::Rule::reset;
688 %compile_clean_files = ();
690 # We always include `.'. This isn't strictly correct.
691 %libtool_clean_directories = ('.' => 1);
697 %object_compilation_map = ();
705 %known_programs = ();
706 %known_libraries= ();
710 %extension_seen = ();
712 %language_scratch = ();
714 %lang_specific_files = ();
716 $handle_dist_run = 0;
720 $get_object_extension_was_run = 0;
722 %transformed_files = ();
726 ################################################################
728 # Initialize our list of languages that are internally supported.
731 register_language ('name' => 'c',
733 'config_vars' => ['CC'],
736 'flags' => ['CFLAGS', 'CPPFLAGS'],
738 'compiler' => 'COMPILE',
739 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
743 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
744 'compile_flag' => '-c',
745 'libtool_tag' => 'CC',
746 'extensions' => ['.c'],
747 '_finish' => \&lang_c_finish);
750 register_language ('name' => 'cxx',
752 'config_vars' => ['CXX'],
753 'linker' => 'CXXLINK',
754 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
756 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
757 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
759 'compiler' => 'CXXCOMPILE',
760 'compile_flag' => '-c',
761 'output_flag' => '-o',
762 'libtool_tag' => 'CXX',
766 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
769 register_language ('name' => 'objc',
770 'Name' => 'Objective C',
771 'config_vars' => ['OBJC'],
772 'linker' => 'OBJCLINK',
773 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
775 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
776 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
778 'compiler' => 'OBJCCOMPILE',
779 'compile_flag' => '-c',
780 'output_flag' => '-o',
784 'extensions' => ['.m']);
786 # Unified Parallel C.
787 register_language ('name' => 'upc',
788 'Name' => 'Unified Parallel C',
789 'config_vars' => ['UPC'],
790 'linker' => 'UPCLINK',
791 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
793 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
794 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
796 'compiler' => 'UPCCOMPILE',
797 'compile_flag' => '-c',
798 'output_flag' => '-o',
802 'extensions' => ['.upc']);
805 register_language ('name' => 'header',
807 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
810 'output_extensions' => sub { return () },
812 '_finish' => sub { });
815 register_language ('name' => 'vala',
817 'config_vars' => ['VALAC'],
819 'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
821 'compiler' => 'VALACOMPILE',
822 'extensions' => ['.vala'],
823 'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
825 'rule_file' => 'vala',
826 '_finish' => \&lang_vala_finish,
827 '_target_hook' => \&lang_vala_target_hook,
828 'nodist_specific' => 1);
831 register_language ('name' => 'yacc',
833 'config_vars' => ['YACC'],
834 'flags' => ['YFLAGS'],
835 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
837 'compiler' => 'YACCCOMPILE',
838 'extensions' => ['.y'],
839 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
841 'rule_file' => 'yacc',
842 '_finish' => \&lang_yacc_finish,
843 '_target_hook' => \&lang_yacc_target_hook,
844 'nodist_specific' => 1);
845 register_language ('name' => 'yaccxx',
846 'Name' => 'Yacc (C++)',
847 'config_vars' => ['YACC'],
848 'rule_file' => 'yacc',
849 'flags' => ['YFLAGS'],
851 'compiler' => 'YACCCOMPILE',
852 'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
853 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
854 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
856 '_finish' => \&lang_yacc_finish,
857 '_target_hook' => \&lang_yacc_target_hook,
858 'nodist_specific' => 1);
861 register_language ('name' => 'lex',
863 'config_vars' => ['LEX'],
864 'rule_file' => 'lex',
865 'flags' => ['LFLAGS'],
866 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
868 'compiler' => 'LEXCOMPILE',
869 'extensions' => ['.l'],
870 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
872 '_finish' => \&lang_lex_finish,
873 '_target_hook' => \&lang_lex_target_hook,
874 'nodist_specific' => 1);
875 register_language ('name' => 'lexxx',
876 'Name' => 'Lex (C++)',
877 'config_vars' => ['LEX'],
878 'rule_file' => 'lex',
879 'flags' => ['LFLAGS'],
880 'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
882 'compiler' => 'LEXCOMPILE',
883 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
884 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
886 '_finish' => \&lang_lex_finish,
887 '_target_hook' => \&lang_lex_target_hook,
888 'nodist_specific' => 1);
891 register_language ('name' => 'asm',
892 'Name' => 'Assembler',
893 'config_vars' => ['CCAS', 'CCASFLAGS'],
895 'flags' => ['CCASFLAGS'],
896 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
897 # or anything else required. They can also set CCAS.
898 # Or simply use Preprocessed Assembler.
899 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
901 'compiler' => 'CCASCOMPILE',
902 'compile_flag' => '-c',
903 'output_flag' => '-o',
904 'extensions' => ['.s'],
906 # With assembly we still use the C linker.
907 '_finish' => \&lang_c_finish);
909 # Preprocessed Assembler.
910 register_language ('name' => 'cppasm',
911 'Name' => 'Preprocessed Assembler',
912 'config_vars' => ['CCAS', 'CCASFLAGS'],
915 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
916 'compile' => '$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
918 'compiler' => 'CPPASCOMPILE',
919 'compile_flag' => '-c',
920 'output_flag' => '-o',
921 'extensions' => ['.S', '.sx'],
923 # With assembly we still use the C linker.
924 '_finish' => \&lang_c_finish);
927 register_language ('name' => 'f77',
928 'Name' => 'Fortran 77',
929 'config_vars' => ['F77'],
930 'linker' => 'F77LINK',
931 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
932 'flags' => ['FFLAGS'],
933 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
935 'compiler' => 'F77COMPILE',
936 'compile_flag' => '-c',
937 'output_flag' => '-o',
938 'libtool_tag' => 'F77',
942 'extensions' => ['.f', '.for']);
945 register_language ('name' => 'fc',
947 'config_vars' => ['FC'],
948 'linker' => 'FCLINK',
949 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
950 'flags' => ['FCFLAGS'],
951 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
953 'compiler' => 'FCCOMPILE',
954 'compile_flag' => '-c',
955 'output_flag' => '-o',
956 'libtool_tag' => 'FC',
960 'extensions' => ['.f90', '.f95', '.f03', '.f08']);
962 # Preprocessed Fortran
963 register_language ('name' => 'ppfc',
964 'Name' => 'Preprocessed Fortran',
965 'config_vars' => ['FC'],
966 'linker' => 'FCLINK',
967 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
970 'flags' => ['FCFLAGS', 'CPPFLAGS'],
972 'compiler' => 'PPFCCOMPILE',
973 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
974 'compile_flag' => '-c',
975 'output_flag' => '-o',
976 'libtool_tag' => 'FC',
978 'extensions' => ['.F90','.F95', '.F03', '.F08']);
980 # Preprocessed Fortran 77
982 # The current support for preprocessing Fortran 77 just involves
983 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
984 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
985 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
986 # for `make' Version 3.76 Beta' (specifically, from info file
987 # `(make)Catalogue of Rules').
989 # A better approach would be to write an Autoconf test
990 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
991 # Fortran 77 compilers know how to do preprocessing. The Autoconf
992 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
993 # preprocessing capabilities, and then fall back on cpp (if cpp were
995 register_language ('name' => 'ppf77',
996 'Name' => 'Preprocessed Fortran 77',
997 'config_vars' => ['F77'],
998 'linker' => 'F77LINK',
999 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1002 'flags' => ['FFLAGS', 'CPPFLAGS'],
1004 'compiler' => 'PPF77COMPILE',
1005 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
1006 'compile_flag' => '-c',
1007 'output_flag' => '-o',
1008 'libtool_tag' => 'F77',
1010 'extensions' => ['.F']);
1013 register_language ('name' => 'ratfor',
1015 'config_vars' => ['F77'],
1016 'linker' => 'F77LINK',
1017 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1020 'flags' => ['RFLAGS', 'FFLAGS'],
1021 # FIXME also FFLAGS.
1022 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
1024 'compiler' => 'RCOMPILE',
1025 'compile_flag' => '-c',
1026 'output_flag' => '-o',
1027 'libtool_tag' => 'F77',
1029 'extensions' => ['.r']);
1032 register_language ('name' => 'java',
1034 'config_vars' => ['GCJ'],
1035 'linker' => 'GCJLINK',
1036 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
1038 'flags' => ['GCJFLAGS'],
1039 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
1041 'compiler' => 'GCJCOMPILE',
1042 'compile_flag' => '-c',
1043 'output_flag' => '-o',
1044 'libtool_tag' => 'GCJ',
1048 'extensions' => ['.java', '.class', '.zip', '.jar']);
1050 ################################################################
1052 # Error reporting functions.
1054 # err_am ($MESSAGE, [%OPTIONS])
1055 # -----------------------------
1056 # Uncategorized errors about the current Makefile.am.
1059 msg_am ('error', @_);
1062 # err_ac ($MESSAGE, [%OPTIONS])
1063 # -----------------------------
1064 # Uncategorized errors about configure.ac.
1067 msg_ac ('error', @_);
1070 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1071 # ---------------------------------------
1072 # Messages about about the current Makefile.am.
1075 my ($channel, $msg, %opts) = @_;
1076 msg $channel, "${am_file}.am", $msg, %opts;
1079 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1080 # ---------------------------------------
1081 # Messages about about configure.ac.
1084 my ($channel, $msg, %opts) = @_;
1085 msg $channel, $configure_ac, $msg, %opts;
1088 ################################################################
1092 # Return a configure-style substitution using the indicated text.
1093 # We do this to avoid having the substitutions directly in automake.in;
1094 # when we do that they are sometimes removed and this causes confusion
1099 return '@' . $text . '@';
1102 ################################################################
1106 # &backname ($REL-DIR)
1107 # --------------------
1108 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1109 # For instance `src/foo' => `../..'.
1110 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1115 foreach (split (/\//, $file))
1117 next if $_ eq '.' || $_ eq '';
1121 or prog_error ("trying to reverse path `$file' pointing outside tree");
1128 return join ('/', @res) || '.';
1131 ################################################################
1133 # `silent-rules' mode handling functions.
1135 # verbose_var (NAME)
1136 # ------------------
1137 # The public variable stem used to implement `silent-rules'.
1141 return 'AM_V_' . $name;
1144 # verbose_private_var (NAME)
1145 # --------------------------
1146 # The naming policy for the private variables for `silent-rules'.
1147 sub verbose_private_var ($)
1150 return 'am__v_' . $name;
1153 # define_verbose_var (NAME, VAL)
1154 # ------------------------------
1155 # For `silent-rules' mode, setup VAR and dispatcher, to expand to VAL if silent.
1156 sub define_verbose_var ($$)
1158 my ($name, $val) = @_;
1159 my $var = verbose_var ($name);
1160 my $pvar = verbose_private_var ($name);
1161 my $silent_var = $pvar . '_0';
1162 if (option 'silent-rules')
1164 # For typical `make's, `configure' replaces AM_V (inside @@) with $(V)
1165 # and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
1166 # For strict POSIX 2008 `make's, it replaces them with 0 or 1 instead.
1167 # See AM_SILENT_RULES in m4/silent.m4.
1168 define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
1169 define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)', INTERNAL);
1170 Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE, $val,
1171 '', INTERNAL, VAR_ASIS)
1172 if (! vardef ($silent_var, TRUE));
1176 # Above should not be needed in the general automake code.
1178 # verbose_flag (NAME)
1179 # -------------------
1180 # Contents of %VERBOSE%: variable to expand before rule command.
1181 sub verbose_flag ($)
1184 return '$(' . verbose_var ($name) . ')'
1185 if (option 'silent-rules');
1189 sub verbose_nodep_flag ($)
1192 return '$(' . verbose_var ($name) . subst ('am__nodep') . ')'
1193 if (option 'silent-rules');
1199 # Contents of %SILENT%: variable to expand to `@' when silent.
1202 return verbose_flag ('at');
1205 # define_verbose_tagvar (NAME)
1206 # ----------------------------
1207 # Engage the needed `silent-rules' machinery for tag NAME.
1208 sub define_verbose_tagvar ($)
1211 if (option 'silent-rules')
1213 define_verbose_var ($name, '@echo " '. $name . ' ' x (6 - length ($name)) . '" $@;');
1214 define_verbose_var ('at', '@');
1218 # define_verbose_libtool
1219 # ----------------------
1220 # Engage the needed `silent-rules' machinery for `libtool --silent'.
1221 sub define_verbose_libtool ()
1223 define_verbose_var ('lt', '--silent');
1224 return verbose_flag ('lt');
1228 ################################################################
1231 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1234 my $var = var ('AUTOMAKE_OPTIONS');
1237 if ($var->has_conditional_contents)
1239 msg_var ('unsupported', $var,
1240 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1242 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1245 my ($loc, $value) = @$locvals;
1246 return 1 if (process_option_list ($loc, $value))
1250 # Override portability-recursive warning.
1251 switch_warning ('no-portability-recursive')
1252 if option 'silent-rules';
1254 if ($strictness == GNITS)
1256 set_option ('readme-alpha', INTERNAL);
1257 set_option ('std-options', INTERNAL);
1258 set_option ('check-news', INTERNAL);
1264 # shadow_unconditionally ($varname, $where)
1265 # -----------------------------------------
1266 # Return a $(variable) that contains all possible values
1267 # $varname can take.
1268 # If the VAR wasn't defined conditionally, return $(VAR).
1269 # Otherwise we create an am__VAR_DIST variable which contains
1270 # all possible values, and return $(am__VAR_DIST).
1271 sub shadow_unconditionally ($$)
1273 my ($varname, $where) = @_;
1274 my $var = var $varname;
1275 if ($var->has_conditional_contents)
1277 $varname = "am__${varname}_DIST";
1278 my @files = uniq ($var->value_as_list_recursive);
1279 define_pretty_variable ($varname, TRUE, $where, @files);
1281 return "\$($varname)"
1284 # get_object_extension ($EXTENSION)
1285 # ---------------------------------
1286 # Prefix $EXTENSION with $U if ansi2knr is in use.
1287 sub get_object_extension ($)
1289 my ($extension) = @_;
1291 # Check for automatic de-ANSI-fication.
1292 $extension = '$U' . $extension
1293 if option 'ansi2knr';
1295 $get_object_extension_was_run = 1;
1300 # check_user_variables (@LIST)
1301 # ----------------------------
1302 # Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
1304 sub check_user_variables (@)
1306 my @dont_override = @_;
1307 foreach my $flag (@dont_override)
1309 my $var = var $flag;
1312 for my $cond ($var->conditions->conds)
1314 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1316 msg_cond_var ('gnu', $cond, $flag,
1317 "`$flag' is a user variable, "
1318 . "you should not override it;\n"
1319 . "use `AM_$flag' instead.");
1326 # Call finish function for each language that was used.
1327 sub handle_languages
1329 if (! option 'no-dependencies')
1331 # Include auto-dep code. Don't include it if DEP_FILES would
1333 if (&saw_sources_p (0) && keys %dep_files)
1335 # Set location of depcomp.
1336 &define_variable ('depcomp',
1337 "\$(SHELL) $am_config_aux_dir/depcomp",
1339 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1341 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1343 my @deplist = sort keys %dep_files;
1344 # Generate each `include' individually. Irix 6 make will
1345 # not properly include several files resulting from a
1346 # variable expansion; generating many separate includes
1348 $output_rules .= "\n";
1349 foreach my $iter (@deplist)
1351 $output_rules .= (subst ('AMDEP_TRUE')
1352 . subst ('am__include')
1354 . subst ('am__quote')
1356 . subst ('am__quote')
1360 # Compute the set of directories to remove in distclean-depend.
1361 my @depdirs = uniq (map { dirname ($_) } @deplist);
1362 $output_rules .= &file_contents ('depend',
1363 new Automake::Location,
1364 DEPDIRS => "@depdirs");
1369 &define_variable ('depcomp', '', INTERNAL);
1370 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1375 # Is the C linker needed?
1377 foreach my $ext (sort keys %extension_seen)
1379 next unless $extension_map{$ext};
1381 my $lang = $languages{$extension_map{$ext}};
1383 my $rule_file = $lang->rule_file || 'depend2';
1385 # Get information on $LANG.
1386 my $pfx = $lang->autodep;
1387 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1389 my ($AMDEP, $FASTDEP) =
1390 (option 'no-dependencies' || $lang->autodep eq 'no')
1391 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1393 my $verbose = verbose_flag ($lang->ccer || 'GEN');
1394 my $verbose_nodep = ($AMDEP eq 'FALSE')
1395 ? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
1396 my $silent = silent_flag ();
1398 my %transform = ('EXT' => $ext,
1402 'FASTDEP' => $FASTDEP,
1403 '-c' => $lang->compile_flag || '',
1404 # These are not used, but they need to be defined
1405 # so &transform do not complain.
1407 'DERIVED-EXT' => 'BUG',
1409 VERBOSE => $verbose,
1410 'VERBOSE-NODEP' => $verbose_nodep,
1414 # Generate the appropriate rules for this extension.
1415 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1416 || defined $lang->compile)
1418 # Some C compilers don't support -c -o. Use it only if really
1420 my $output_flag = $lang->output_flag || '';
1423 && $lang->name eq 'c'
1424 && option 'subdir-objects');
1426 # Compute a possible derived extension.
1427 # This is not used by depend2.am.
1428 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1430 # When we output an inference rule like `.c.o:' we
1431 # have two cases to consider: either subdir-objects
1432 # is used, or it is not.
1434 # In the latter case the rule is used to build objects
1435 # in the current directory, and dependencies always
1436 # go into `./$(DEPDIR)/'. We can hard-code this value.
1438 # In the former case the rule can be used to build
1439 # objects in sub-directories too. Dependencies should
1440 # go into the appropriate sub-directories, e.g.,
1441 # `sub/$(DEPDIR)/'. The value of this directory
1442 # needs to be computed on-the-fly.
1444 # DEPBASE holds the name of this directory, plus the
1445 # basename part of the object file (extensions Po, TPo,
1446 # Plo, TPlo will be added later as appropriate). It is
1447 # either hardcoded, or a shell variable (`$depbase') that
1448 # will be computed by the rule.
1450 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1452 file_contents ($rule_file,
1453 new Automake::Location,
1457 'DERIVED-EXT' => $der_ext,
1459 DEPBASE => $depbase,
1462 SOURCEFLAG => $sourceflags{$ext} || '',
1467 COMPILE => '$(' . $lang->compiler . ')',
1468 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1470 SUBDIROBJ => !! option 'subdir-objects');
1473 # Now include code for each specially handled object with this
1475 my %seen_files = ();
1476 foreach my $file (@{$lang_specific_files{$lang->name}})
1478 my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
1480 # We might see a given object twice, for instance if it is
1481 # used under different conditions.
1482 next if defined $seen_files{$obj};
1483 $seen_files{$obj} = 1;
1485 prog_error ("found " . $lang->name .
1486 " in handle_languages, but compiler not defined")
1487 unless defined $lang->compile;
1489 my $obj_compile = $lang->compile;
1491 # Rewrite each occurrence of `AM_$flag' in the compile
1492 # rule into `${derived}_$flag' if it exists.
1493 for my $flag (@{$lang->flags})
1495 my $val = "${derived}_$flag";
1496 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1500 my $libtool_tag = '';
1501 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1503 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1506 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1507 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1509 my $ltverbose = define_verbose_libtool ();
1511 "\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1512 . "--mode=compile $obj_compile";
1514 # We _need_ `-o' for per object rules.
1515 my $output_flag = $lang->output_flag || '-o';
1517 my $depbase = dirname ($obj);
1521 unless $depbase eq '';
1522 $depbase .= '$(DEPDIR)/' . basename ($obj);
1524 # Support for deansified files in subdirectories is ugly
1525 # enough to deserve an explanation.
1527 # A Note about normal ansi2knr processing first. On
1529 # AUTOMAKE_OPTIONS = ansi2knr
1530 # bin_PROGRAMS = foo
1531 # foo_SOURCES = foo.c
1533 # we generate rules similar to:
1535 # foo: foo$U.o; link ...
1536 # foo$U.o: foo$U.c; compile ...
1537 # foo_.c: foo.c; ansi2knr ...
1539 # this is fairly compact, and will call ansi2knr depending
1540 # on the value of $U (`' or `_').
1542 # It's harder with subdir sources. On
1544 # AUTOMAKE_OPTIONS = ansi2knr
1545 # bin_PROGRAMS = foo
1546 # foo_SOURCES = sub/foo.c
1548 # we have to create foo_.c in the current directory.
1549 # (Unless the user asks 'subdir-objects'.) This is important
1550 # in case the same file (`foo.c') is compiled from other
1551 # directories with different cpp options: foo_.c would
1552 # be preprocessed for only one set of options if it were
1553 # put in the subdirectory.
1555 # Because foo$U.o must be built from either foo_.c or
1556 # sub/foo.c we can't be as concise as in the first example.
1559 # foo: foo$U.o; link ...
1560 # foo_.o: foo_.c; compile ...
1561 # foo.o: sub/foo.c; compile ...
1562 # foo_.c: foo.c; ansi2knr ...
1564 # This is why we'll now transform $rule_file twice
1565 # if we detect this case.
1566 # A first time we output the compile rule with `$U'
1567 # replaced by `_' and the source directory removed,
1568 # and another time we simply remove `$U'.
1570 # Note that at this point $source (as computed by
1571 # &handle_single_transform) is `sub/foo$U.c'.
1572 # This can be confusing: it can be used as-is when
1573 # subdir-objects is set, otherwise you have to know
1574 # it really means `foo_.c' or `sub/foo.c'.
1575 my $objdir = dirname ($obj);
1576 my $srcdir = dirname ($source);
1577 if ($lang->ansi && $obj =~ /\$U/)
1579 prog_error "`$obj' contains \$U, but `$source' doesn't."
1580 if $source !~ /\$U/;
1582 (my $source_ = $source) =~ s/\$U/_/g;
1583 # Output an additional rule if _.c and .c are not in
1584 # the same directory. (_.c is always in $objdir.)
1585 if ($objdir ne $srcdir)
1587 (my $obj_ = $obj) =~ s/\$U/_/g;
1588 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1589 $source_ = basename ($source_);
1592 file_contents ($rule_file,
1593 new Automake::Location,
1597 DEPBASE => $depbase_,
1600 SOURCEFLAG => $sourceflags{$srcext} || '',
1601 OBJ => "$obj_$myext",
1602 OBJOBJ => "$obj_.obj",
1603 LTOBJ => "$obj_.lo",
1605 COMPILE => $obj_compile,
1606 LTCOMPILE => $obj_ltcompile,
1610 $depbase =~ s/\$U//g;
1611 $source =~ s/\$U//g;
1616 file_contents ($rule_file,
1617 new Automake::Location,
1621 DEPBASE => $depbase,
1624 SOURCEFLAG => $sourceflags{$srcext} || '',
1625 # Use $myext and not `.o' here, in case
1626 # we are actually building a new source
1627 # file -- e.g. via yacc.
1628 OBJ => "$obj$myext",
1629 OBJOBJ => "$obj.obj",
1632 VERBOSE => $verbose,
1633 'VERBOSE-NODEP' => $verbose_nodep,
1635 COMPILE => $obj_compile,
1636 LTCOMPILE => $obj_ltcompile,
1641 # The rest of the loop is done once per language.
1642 next if defined $done{$lang};
1645 # Load the language dependent Makefile chunks.
1646 my %lang = map { uc ($_) => 0 } keys %languages;
1647 $lang{uc ($lang->name)} = 1;
1648 $output_rules .= file_contents ('lang-compile',
1649 new Automake::Location,
1652 # If the source to a program consists entirely of code from a
1653 # `pure' language, for instance C++ or Fortran 77, then we
1654 # don't need the C compiler code. However if we run into
1655 # something unusual then we do generate the C code. There are
1656 # probably corner cases here that do not work properly.
1657 # People linking Java code to Fortran code deserve pain.
1658 $needs_c ||= ! $lang->pure;
1660 define_compiler_variable ($lang)
1661 if ($lang->compile);
1663 define_linker_variable ($lang)
1666 require_variables ("$am_file.am", $lang->Name . " source seen",
1667 TRUE, @{$lang->config_vars});
1669 # Call the finisher.
1672 # Flags listed in `->flags' are user variables (per GNU Standards),
1673 # they should not be overridden in the Makefile...
1674 my @dont_override = @{$lang->flags};
1675 # ... and so is LDFLAGS.
1676 push @dont_override, 'LDFLAGS' if $lang->link;
1678 check_user_variables @dont_override;
1681 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1682 # suffix rule was learned), don't bother with the C stuff. But if
1683 # anything else creeps in, then use it.
1685 if $need_link || suffix_rules_count > 1;
1689 &define_compiler_variable ($languages{'c'})
1690 unless defined $done{$languages{'c'}};
1691 define_linker_variable ($languages{'c'});
1694 # Always provide the user with `AM_V_GEN' for `silent-rules' mode.
1695 define_verbose_tagvar ('GEN');
1699 # append_exeext { PREDICATE } $MACRO
1700 # ----------------------------------
1701 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1702 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1705 # This is typically used on all filenames of *_PROGRAMS, and filenames
1706 # of TESTS that are programs.
1707 sub append_exeext (&$)
1709 my ($pred, $macro) = @_;
1711 transform_variable_recursively
1712 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1714 my ($subvar, $val, $cond, $full_cond) = @_;
1715 # Append $(EXEEXT) unless the user did it already, or it's a
1718 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1724 # Check to make sure a source defined in LIBOBJS is not explicitly
1725 # mentioned. This is a separate function (as opposed to being inlined
1726 # in handle_source_transform) because it isn't always appropriate to
1728 sub check_libobjs_sources
1730 my ($one_file, $unxformed) = @_;
1732 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1733 'dist_EXTRA_', 'nodist_EXTRA_')
1736 my $varname = $prefix . $one_file . '_SOURCES';
1737 my $var = var ($varname);
1740 @files = $var->value_as_list_recursive;
1742 elsif ($prefix eq '')
1744 @files = ($unxformed . '.c');
1751 foreach my $file (@files)
1753 err_var ($prefix . $one_file . '_SOURCES',
1754 "automatically discovered file `$file' should not" .
1755 " be explicitly mentioned")
1756 if defined $libsources{$file};
1763 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1764 # -----------------------------------------------------------------------------
1765 # Does much of the actual work for handle_source_transform.
1767 # $VAR is the name of the variable that the source filenames come from
1768 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1769 # $DERIVED is the name of resulting executable or library
1770 # $OBJ is the object extension (e.g., `$U.lo')
1771 # $FILE the source file to transform
1772 # %TRANSFORM contains extras arguments to pass to file_contents
1773 # when producing explicit rules
1774 # Result is a list of the names of objects
1775 # %linkers_used will be updated with any linkers needed
1776 sub handle_single_transform ($$$$$%)
1778 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1779 my @files = ($_file);
1781 my $nonansi_obj = $obj;
1782 $nonansi_obj =~ s/\$U//g;
1784 # Turn sources into objects. We use a while loop like this
1785 # because we might add to @files in the loop.
1786 while (scalar @files > 0)
1790 # Configure substitutions in _SOURCES variables are errors.
1793 my $parent_msg = '';
1794 $parent_msg = "\nand is referred to from `$topparent'"
1795 if $topparent ne $var->name;
1797 "`" . $var->name . "' includes configure substitution `$_'"
1798 . $parent_msg . ";\nconfigure " .
1799 "substitutions are not allowed in _SOURCES variables");
1803 # If the source file is in a subdirectory then the `.o' is put
1804 # into the current directory, unless the subdir-objects option
1807 # Split file name into base and extension.
1808 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1810 my $directory = $1 || '';
1814 # We must generate a rule for the object if it requires its own flags.
1816 my ($linker, $object);
1818 # This records whether we've seen a derived source file (e.g.
1820 my $derived_source = 0;
1822 # This holds the `aggregate context' of the file we are
1823 # currently examining. If the file is compiled with
1824 # per-object flags, then it will be the name of the object.
1825 # Otherwise it will be `AM'. This is used by the target hook
1826 # language function.
1827 my $aggregate = 'AM';
1829 $extension = &derive_suffix ($extension, $nonansi_obj);
1831 if ($extension_map{$extension} &&
1832 ($lang = $languages{$extension_map{$extension}}))
1834 # Found the language, so see what it says.
1835 &saw_extension ($extension);
1837 # Do we have per-executable flags for this executable?
1838 my $have_per_exec_flags = 0;
1839 my @peflags = @{$lang->flags};
1840 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1841 foreach my $flag (@peflags)
1843 if (set_seen ("${derived}_$flag"))
1845 $have_per_exec_flags = 1;
1850 # Note: computed subr call. The language rewrite function
1851 # should return one of the LANG_* constants. It could
1852 # also return a list whose first value is such a constant
1853 # and whose second value is a new source extension which
1854 # should be applied. This means this particular language
1855 # generates another source file which we must then process
1857 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1858 my ($r, $source_extension)
1859 = &$subr ($directory, $base, $extension,
1860 $nonansi_obj, $have_per_exec_flags, $var);
1861 # Skip this entry if we were asked not to process it.
1862 next if $r == LANG_IGNORE;
1864 # Now extract linker and other info.
1865 $linker = $lang->linker;
1868 if (defined $source_extension)
1870 $this_obj_ext = $source_extension;
1871 $derived_source = 1;
1875 $this_obj_ext = $obj;
1879 $this_obj_ext = $nonansi_obj;
1881 $object = $base . $this_obj_ext;
1883 if ($have_per_exec_flags)
1885 # We have a per-executable flag in effect for this
1886 # object. In this case we rewrite the object's
1887 # name to ensure it is unique.
1889 # We choose the name `DERIVED_OBJECT' to ensure
1890 # (1) uniqueness, and (2) continuity between
1891 # invocations. However, this will result in a
1892 # name that is too long for losing systems, in
1893 # some situations. So we provide _SHORTNAME to
1896 my $dname = $derived;
1897 my $var = var ($derived . '_SHORTNAME');
1900 # FIXME: should use the same Condition as
1901 # the _SOURCES variable. But this is really
1902 # silly overkill -- nobody should have
1903 # conditional shortnames.
1904 $dname = $var->variable_value;
1906 $object = $dname . '-' . $object;
1908 prog_error ($lang->name . " flags defined without compiler")
1909 if ! defined $lang->compile;
1914 # If rewrite said it was ok, put the object into a
1916 if ($r == LANG_SUBDIR && $directory ne '')
1918 $object = $directory . '/' . $object;
1921 # If the object file has been renamed (because per-target
1922 # flags are used) we cannot compile the file with an
1923 # inference rule: we need an explicit rule.
1925 # If the source is in a subdirectory and the object is in
1926 # the current directory, we also need an explicit rule.
1928 # If both source and object files are in a subdirectory
1929 # (this happens when the subdir-objects option is used),
1930 # then the inference will work.
1932 # The latter case deserves a historical note. When the
1933 # subdir-objects option was added on 1999-04-11 it was
1934 # thought that inferences rules would work for
1935 # subdirectory objects too. Later, on 1999-11-22,
1936 # automake was changed to output explicit rules even for
1937 # subdir-objects. Nobody remembers why, but this occurred
1938 # soon after the merge of the user-dep-gen-branch so it
1939 # might be related. In late 2003 people complained about
1940 # the size of the generated Makefile.ins (libgcj, with
1941 # 2200+ subdir objects was reported to have a 9MB
1942 # Makefile), so we now rely on inference rules again.
1943 # Maybe we'll run across the same issue as in the past,
1944 # but at least this time we can document it. However since
1945 # dependency tracking has evolved it is possible that
1946 # our old problem no longer exists.
1947 # Using inference rules for subdir-objects has been tested
1948 # with GNU make, Solaris make, Ultrix make, BSD make,
1949 # HP-UX make, and OSF1 make successfully.
1951 || ($directory ne '' && ! option 'subdir-objects')
1952 # We must also use specific rules for a nodist_ source
1953 # if its language requests it.
1954 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1956 my $obj_sans_ext = substr ($object, 0,
1957 - length ($this_obj_ext));
1959 if ($directory ne '')
1961 $full_ansi = $directory . '/' . $base . $extension;
1965 $full_ansi = $base . $extension;
1968 if ($lang->ansi && option 'ansi2knr')
1970 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1971 $obj_sans_ext .= '$U';
1974 my @specifics = ($full_ansi, $obj_sans_ext,
1975 # Only use $this_obj_ext in the derived
1976 # source case because in the other case we
1977 # *don't* want $(OBJEXT) to appear here.
1978 ($derived_source ? $this_obj_ext : '.o'),
1981 # If we renamed the object then we want to use the
1982 # per-executable flag name. But if this is simply a
1983 # subdir build then we still want to use the AM_ flag
1987 unshift @specifics, $derived;
1988 $aggregate = $derived;
1992 unshift @specifics, 'AM';
1995 # Each item on this list is a reference to a list consisting
1996 # of four values followed by additional transform flags for
1997 # file_contents. The four values are the derived flag prefix
1998 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1999 # source file, the base name of the output file, and
2000 # the extension for the object file.
2001 push (@{$lang_specific_files{$lang->name}},
2002 [@specifics, %transform]);
2005 elsif ($extension eq $nonansi_obj)
2007 # This is probably the result of a direct suffix rule.
2008 # In this case we just accept the rewrite.
2009 $object = "$base$extension";
2010 $object = "$directory/$object" if $directory ne '';
2015 # No error message here. Used to have one, but it was
2017 # FIXME: we could potentially do more processing here,
2018 # perhaps treating the new extension as though it were a
2019 # new source extension (as above). This would require
2020 # more restructuring than is appropriate right now.
2024 err_am "object `$object' created by `$full' and `$object_map{$object}'"
2025 if (defined $object_map{$object}
2026 && $object_map{$object} ne $full);
2028 my $comp_val = (($object =~ /\.lo$/)
2029 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
2030 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
2031 if (defined $object_compilation_map{$comp_obj}
2032 && $object_compilation_map{$comp_obj} != 0
2033 # Only see the error once.
2034 && ($object_compilation_map{$comp_obj}
2035 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
2036 && $object_compilation_map{$comp_obj} != $comp_val)
2038 err_am "object `$comp_obj' created both with libtool and without";
2040 $object_compilation_map{$comp_obj} |= $comp_val;
2044 # Let the language do some special magic if required.
2045 $lang->target_hook ($aggregate, $object, $full, %transform);
2048 if ($derived_source)
2050 prog_error ($lang->name . " has automatic dependency tracking")
2051 if $lang->autodep ne 'no';
2052 # Make sure this new source file is handled next. That will
2053 # make it appear to be at the right place in the list.
2054 unshift (@files, $object);
2055 # Distribute derived sources unless the source they are
2056 # derived from is not.
2057 &push_dist_common ($object)
2058 unless ($topparent =~ /^(?:nobase_)?nodist_/);
2062 $linkers_used{$linker} = 1;
2064 push (@result, $object);
2066 if (! defined $object_map{$object})
2069 $object_map{$object} = $full;
2071 # If resulting object is in subdir, we need to make
2072 # sure the subdir exists at build time.
2073 if ($object =~ /\//)
2075 # FIXME: check that $DIRECTORY is somewhere in the
2078 # For Java, the way we're handling it right now, a
2079 # `..' component doesn't make sense.
2080 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
2082 err_am "`$full' should not contain a `..' component";
2085 # Make sure object is removed by `make mostlyclean'.
2086 $compile_clean_files{$object} = MOSTLY_CLEAN;
2087 # If we have a libtool object then we also must remove
2089 if ($object =~ /\.lo$/)
2091 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
2092 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
2094 # Remove any libtool object in this directory.
2095 $libtool_clean_directories{$directory} = 1;
2098 push (@dep_list, require_build_directory ($directory));
2100 # If we're generating dependencies, we also want
2101 # to make sure that the appropriate subdir of the
2102 # .deps directory is created.
2104 require_build_directory ($directory . '/$(DEPDIR)'))
2105 unless option 'no-dependencies';
2108 &pretty_print_rule ($object . ':', "\t", @dep_list)
2109 if scalar @dep_list > 0;
2112 # Transform .o or $o file into .P file (for automatic
2114 # Properly flatten multiple adjacent slashes, as Solaris 10 make
2115 # might fail over them in an include statement.
2116 # Leading double slashes may be special, as per Posix, so deal
2117 # with them carefully.
2118 if ($lang && $lang->autodep ne 'no')
2120 my $depfile = $object;
2121 $depfile =~ s/\.([^.]*)$/.P$1/;
2122 $depfile =~ s/\$\(OBJEXT\)$/o/;
2123 my $maybe_extra_leading_slash = '';
2124 $maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
2125 $depfile =~ s,/+,/,g;
2126 my $basename = basename ($depfile);
2127 # This might make $dirname empty, but we account for that below.
2128 (my $dirname = dirname ($depfile)) =~ s/\/*$//;
2129 $dirname = $maybe_extra_leading_slash . $dirname;
2130 $dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
2139 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2140 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
2141 # ---------------------------------------------------------------------------
2142 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2145 # $VAR is the name of the _SOURCES variable
2146 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
2147 # it will be generated and returned).
2148 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2149 # work done to determine the linker will be).
2150 # $ONE_FILE is the canonical (transformed) name of object to build
2151 # $OBJ is the object extension (i.e. either `.o' or `.lo').
2152 # $TOPPARENT is the _SOURCES variable being processed.
2153 # $WHERE context into which this definition is done
2154 # %TRANSFORM extra arguments to pass to file_contents when producing
2157 # Result is a pair ($LINKER, $OBJVAR):
2158 # $LINKER is a boolean, true if a linker is needed to deal with the objects
2159 sub define_objects_from_sources ($$$$$$$%)
2161 my ($var, $objvar, $nodefine, $one_file,
2162 $obj, $topparent, $where, %transform) = @_;
2164 my $needlinker = "";
2166 transform_variable_recursively
2167 ($var, $objvar, 'am__objects', $nodefine, $where,
2168 # The transform code to run on each filename.
2170 my ($subvar, $val, $cond, $full_cond) = @_;
2171 my @trans = handle_single_transform ($subvar, $topparent,
2172 $one_file, $obj, $val,
2174 $needlinker = "true" if @trans;
2182 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
2183 # -----------------------------------------------------------------------------
2184 # Handle SOURCE->OBJECT transform for one program or library.
2186 # canonical (transformed) name of target to build
2187 # actual target of object to build
2188 # object extension (i.e., either `.o' or `$o')
2189 # location of the source variable
2190 # extra arguments to pass to file_contents when producing rules
2191 # Return the name of the linker variable that must be used.
2192 # Empty return means just use `LINK'.
2193 sub handle_source_transform ($$$$%)
2195 # one_file is canonical name. unxformed is given name. obj is
2197 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
2201 # No point in continuing if _OBJECTS is defined.
2202 return if reject_var ($one_file . '_OBJECTS',
2203 $one_file . '_OBJECTS should not be defined');
2208 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2209 'dist_EXTRA_', 'nodist_EXTRA_')
2211 my $varname = $prefix . $one_file . "_SOURCES";
2212 my $var = var $varname;
2215 # We are going to define _OBJECTS variables using the prefix.
2216 # Then we glom them all together. So we can't use the null
2217 # prefix here as we need it later.
2218 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2220 # Keep track of which prefixes we saw.
2221 $used_pfx{$xpfx} = 1
2222 unless $prefix =~ /EXTRA_/;
2224 push @sources, "\$($varname)";
2225 push @dist_sources, shadow_unconditionally ($varname, $where)
2226 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2229 define_objects_from_sources ($varname,
2230 $xpfx . $one_file . '_OBJECTS',
2231 $prefix =~ /EXTRA_/,
2232 $one_file, $obj, $varname, $where,
2233 DIST_SOURCE => ($prefix !~ /^nodist_/),
2238 $linker ||= &resolve_linker (%linkers_used);
2241 my @keys = sort keys %used_pfx;
2242 if (scalar @keys == 0)
2244 # The default source for libfoo.la is libfoo.c, but for
2245 # backward compatibility we first look at libfoo_la.c,
2246 # if no default source suffix is given.
2247 my $old_default_source = "$one_file.c";
2248 my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
2249 my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
2250 msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
2251 if $default_source_ext =~ /[\t ]/;
2252 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
2253 if ($old_default_source ne $default_source
2255 && (rule $old_default_source
2256 || rule '$(srcdir)/' . $old_default_source
2257 || rule '${srcdir}/' . $old_default_source
2258 || -f $old_default_source))
2260 my $loc = $where->clone;
2262 msg ('obsolete', $loc,
2263 "the default source for `$unxformed' has been changed "
2264 . "to `$default_source'.\n(Using `$old_default_source' for "
2265 . "backward compatibility.)");
2266 $default_source = $old_default_source;
2268 # If a rule exists to build this source with a $(srcdir)
2269 # prefix, use that prefix in our variables too. This is for
2270 # the sake of BSD Make.
2271 if (rule '$(srcdir)/' . $default_source
2272 || rule '${srcdir}/' . $default_source)
2274 $default_source = '$(srcdir)/' . $default_source;
2277 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2278 push (@sources, $default_source);
2279 push (@dist_sources, $default_source);
2283 handle_single_transform ($one_file . '_SOURCES',
2284 $one_file . '_SOURCES',
2286 $default_source, %transform);
2287 $linker ||= &resolve_linker (%linkers_used);
2288 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2292 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2293 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2296 # If we want to use `LINK' we must make sure it is defined.
2306 # handle_lib_objects ($XNAME, $VAR)
2307 # ---------------------------------
2308 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2309 # Also, generate _DEPENDENCIES variable if appropriate.
2311 # transformed name of object being built, or empty string if no object
2312 # name of _LDADD/_LIBADD-type variable to examine
2313 # Returns 1 if LIBOBJS seen, 0 otherwise.
2314 sub handle_lib_objects
2316 my ($xname, $varname) = @_;
2318 my $var = var ($varname);
2319 prog_error "handle_lib_objects: `$varname' undefined"
2321 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2322 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2323 my $prefix = $1 || 'AM_';
2325 my $seen_libobjs = 0;
2328 transform_variable_recursively
2329 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2331 # Transformation function, run on each filename.
2333 my ($subvar, $val, $cond, $full_cond) = @_;
2337 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2338 if ($val !~ /^-[lL]/ &&
2339 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2340 # for Libtool libraries or programs. (Actually we are a bit
2341 # lax here since this code also applies to non-libtool
2342 # libraries or programs, for which -dlopen and -dlopreopen
2343 # are pure nonsense. Diagnosing this doesn't seem very
2344 # important: the developer will quickly get complaints from
2346 $val !~ /^-dl(?:pre)?open$/ &&
2347 # Only get this error once.
2351 # FIXME: should display a stack of nested variables
2352 # as context when $var != $subvar.
2353 err_var ($var, "linker flags such as `$val' belong in "
2354 . "`${prefix}LDFLAGS");
2358 elsif ($val !~ /^\@.*\@$/)
2360 # Assume we have a file of some sort, and output it into the
2361 # dependency variable. Autoconf substitutions are not output;
2362 # rarely is a new dependency substituted into e.g. foo_LDADD
2363 # -- but bad things (e.g. -lX11) are routinely substituted.
2364 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2365 # and handled specially below.
2368 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2370 handle_LIBOBJS ($subvar, $cond, $1);
2374 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2376 handle_ALLOCA ($subvar, $cond, $1);
2385 return $seen_libobjs;
2388 # handle_LIBOBJS_or_ALLOCA ($VAR)
2389 # -------------------------------
2390 # Definitions common to LIBOBJS and ALLOCA.
2391 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2392 sub handle_LIBOBJS_or_ALLOCA ($)
2398 # If LIBOBJS files must be built in another directory we have
2399 # to define LIBOBJDIR and ensure the files get cleaned.
2400 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2401 # is achieved by `rm -f *.$(OBJEXT)' in compile.am.
2402 if ($config_libobj_dir
2403 && $relative_dir ne $config_libobj_dir)
2405 if (option 'subdir-objects')
2407 # In the top-level Makefile we do not use $(top_builddir), because
2408 # we are already there, and since the targets are built without
2409 # a $(top_builddir), it helps BSD Make to match them with
2411 $dir = "$config_libobj_dir/" if $config_libobj_dir ne '.';
2412 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2413 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2414 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2415 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2416 # be created by libtool as a side-effect of creating LTLIBOBJS).
2417 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2421 error ("`\$($var)' cannot be used outside `$config_libobj_dir' if"
2422 . " `subdir-objects' is not set");
2429 sub handle_LIBOBJS ($$$)
2431 my ($var, $cond, $lt) = @_;
2432 my $myobjext = $lt ? 'lo' : 'o';
2435 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2436 if ! keys %libsources;
2438 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2440 foreach my $iter (keys %libsources)
2442 if ($iter =~ /\.[cly]$/)
2444 &saw_extension ($&);
2445 &saw_extension ('.c');
2448 if ($iter =~ /\.h$/)
2450 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2452 elsif ($iter ne 'alloca.c')
2454 my $rewrite = $iter;
2455 $rewrite =~ s/\.c$/.P$myobjext/;
2456 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2457 $rewrite = "^" . quotemeta ($iter) . "\$";
2458 # Only require the file if it is not a built source.
2459 my $bs = var ('BUILT_SOURCES');
2460 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2462 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2468 sub handle_ALLOCA ($$$)
2470 my ($var, $cond, $lt) = @_;
2471 my $myobjext = $lt ? 'lo' : 'o';
2473 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2475 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2476 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2477 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2478 &saw_extension ('.c');
2481 # Canonicalize the input parameter
2485 $string =~ tr/A-Za-z0-9_\@/_/c;
2489 # Canonicalize a name, and check to make sure the non-canonical name
2490 # is never used. Returns canonical name. Arguments are name and a
2491 # list of suffixes to check for.
2492 sub check_canonical_spelling
2494 my ($name, @suffixes) = @_;
2496 my $xname = &canonicalize ($name);
2497 if ($xname ne $name)
2499 foreach my $xt (@suffixes)
2501 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2511 # Set up the compile suite.
2512 sub handle_compile ()
2515 unless $get_object_extension_was_run;
2518 my $default_includes = '';
2519 if (! option 'nostdinc')
2521 my @incs = ('-I.', subst ('am__isrc'));
2523 my $var = var 'CONFIG_HEADER';
2526 foreach my $hdr (split (' ', $var->variable_value))
2528 push @incs, '-I' . dirname ($hdr);
2531 # We want `-I. -I$(srcdir)', but the latter -I is redundant
2532 # and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
2533 # instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
2534 # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
2535 # to just put @am__isrc@ right after `-I.', without a space.
2536 ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
2539 my (@mostly_rms, @dist_rms);
2540 foreach my $item (sort keys %compile_clean_files)
2542 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2544 push (@mostly_rms, "\t-rm -f $item");
2546 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2548 push (@dist_rms, "\t-rm -f $item");
2552 prog_error 'invalid entry in %compile_clean_files';
2556 my ($coms, $vars, $rules) =
2557 &file_contents_internal (1, "$libdir/am/compile.am",
2558 new Automake::Location,
2559 ('DEFAULT_INCLUDES' => $default_includes,
2560 'MOSTLYRMS' => join ("\n", @mostly_rms),
2561 'DISTRMS' => join ("\n", @dist_rms)));
2562 $output_vars .= $vars;
2563 $output_rules .= "$coms$rules";
2565 # Check for automatic de-ANSI-fication.
2566 if (option 'ansi2knr')
2568 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2569 my $ansi2knr_dir = '';
2571 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2572 TRUE, "ANSI2KNR", "U");
2574 # topdir is where ansi2knr should be.
2575 if ($ansi2knr_filename eq 'ansi2knr')
2577 # Only require ansi2knr files if they should appear in
2579 require_file ($ansi2knr_where, FOREIGN,
2580 'ansi2knr.c', 'ansi2knr.1');
2582 # ansi2knr needs to be built before subdirs, so unshift it
2583 # rather then pushing it.
2584 unshift (@all, '$(ANSI2KNR)');
2588 $ansi2knr_dir = dirname ($ansi2knr_filename);
2591 $output_rules .= &file_contents ('ansi2knr',
2592 new Automake::Location,
2593 'ANSI2KNR-DIR' => $ansi2knr_dir);
2600 # Handle libtool rules.
2603 return unless var ('LIBTOOL');
2605 # Libtool requires some files, but only at top level.
2606 # (Starting with Libtool 2.0 we do not have to bother. These
2607 # requirements are done with AC_REQUIRE_AUX_FILE.)
2608 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2609 if $relative_dir eq '.' && ! $libtool_new_api;
2612 foreach my $item (sort keys %libtool_clean_directories)
2614 my $dir = ($item eq '.') ? '' : "$item/";
2615 # .libs is for Unix, _libs for DOS.
2616 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2619 check_user_variables 'LIBTOOLFLAGS';
2621 # Output the libtool compilation rules.
2622 $output_rules .= &file_contents ('libtool',
2623 new Automake::Location,
2624 LTRMS => join ("\n", @libtool_rms));
2627 # handle_programs ()
2628 # ------------------
2629 # Handle C programs.
2632 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2633 'bin', 'sbin', 'libexec', 'pkglibexec',
2635 return if ! @proglist;
2637 my $seen_global_libobjs =
2638 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2640 foreach my $pair (@proglist)
2642 my ($where, $one_file) = @$pair;
2644 my $seen_libobjs = 0;
2645 my $obj = get_object_extension '.$(OBJEXT)';
2647 $known_programs{$one_file} = $where;
2649 # Canonicalize names and check for misspellings.
2650 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2651 '_SOURCES', '_OBJECTS',
2654 $where->push_context ("while processing program `$one_file'");
2655 $where->set (INTERNAL->get);
2657 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2658 NONLIBTOOL => 1, LIBTOOL => 0);
2660 if (var ($xname . "_LDADD"))
2662 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2666 # User didn't define prog_LDADD override. So do it.
2667 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2669 # This does a bit too much work. But we need it to
2670 # generate _DEPENDENCIES when appropriate.
2673 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2677 reject_var ($xname . '_LIBADD',
2678 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2680 set_seen ($xname . '_DEPENDENCIES');
2681 set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
2682 set_seen ($xname . '_LDFLAGS');
2684 # Determine program to use for link.
2685 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xname);
2686 $vlink = verbose_flag ($vlink || 'GEN');
2688 # If the resulting program lies into a subdirectory,
2689 # make sure this directory will exist.
2690 my $dirstamp = require_build_directory_maybe ($one_file);
2692 $libtool_clean_directories{dirname ($one_file)} = 1;
2694 $output_rules .= &file_contents ('program',
2696 PROGRAM => $one_file,
2700 DIRSTAMP => $dirstamp,
2701 EXEEXT => '$(EXEEXT)');
2703 if ($seen_libobjs || $seen_global_libobjs)
2705 if (var ($xname . '_LDADD'))
2707 &check_libobjs_sources ($xname, $xname . '_LDADD');
2709 elsif (var ('LDADD'))
2711 &check_libobjs_sources ($xname, 'LDADD');
2718 # handle_libraries ()
2719 # -------------------
2721 sub handle_libraries
2723 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2724 'lib', 'pkglib', 'noinst', 'check');
2725 return if ! @liblist;
2727 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2732 my $var = rvar ($prefix[0] . '_LIBRARIES');
2733 $var->requires_variables ('library used', 'RANLIB');
2736 &define_variable ('AR', 'ar', INTERNAL);
2737 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2738 &define_verbose_tagvar ('AR');
2740 foreach my $pair (@liblist)
2742 my ($where, $onelib) = @$pair;
2744 my $seen_libobjs = 0;
2745 # Check that the library fits the standard naming convention.
2746 my $bn = basename ($onelib);
2747 if ($bn !~ /^lib.*\.a$/)
2749 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2750 my $suggestion = dirname ($onelib) . "/$bn";
2751 $suggestion =~ s|^\./||g;
2752 msg ('error-gnu/warn', $where,
2753 "`$onelib' is not a standard library name\n"
2754 . "did you mean `$suggestion'?")
2757 ($known_libraries{$onelib} = $bn) =~ s/\.a$//;
2759 $where->push_context ("while processing library `$onelib'");
2760 $where->set (INTERNAL->get);
2762 my $obj = get_object_extension '.$(OBJEXT)';
2764 # Canonicalize names and check for misspellings.
2765 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2766 '_OBJECTS', '_DEPENDENCIES',
2769 if (! var ($xlib . '_AR'))
2771 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2774 # Generate support for conditional object inclusion in
2776 if (var ($xlib . '_LIBADD'))
2778 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2785 &define_variable ($xlib . "_LIBADD", '', $where);
2788 reject_var ($xlib . '_LDADD',
2789 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2791 # Make sure we at look at this.
2792 set_seen ($xlib . '_DEPENDENCIES');
2793 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2795 &handle_source_transform ($xlib, $onelib, $obj, $where,
2796 NONLIBTOOL => 1, LIBTOOL => 0);
2798 # If the resulting library lies into a subdirectory,
2799 # make sure this directory will exist.
2800 my $dirstamp = require_build_directory_maybe ($onelib);
2801 my $verbose = verbose_flag ('AR');
2802 my $silent = silent_flag ();
2804 $output_rules .= &file_contents ('library',
2806 VERBOSE => $verbose,
2810 DIRSTAMP => $dirstamp);
2814 if (var ($xlib . '_LIBADD'))
2816 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2823 # handle_ltlibraries ()
2824 # ---------------------
2825 # Handle shared libraries.
2826 sub handle_ltlibraries
2828 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2829 'noinst', 'lib', 'pkglib', 'check');
2830 return if ! @liblist;
2832 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2837 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2838 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2842 my %instsubdirs = ();
2844 my %liblocations = (); # Location (in Makefile.am) of each library.
2846 foreach my $key (@prefix)
2848 # Get the installation directory of each library.
2850 my $strip_subdir = 1;
2851 if ($dir =~ /^nobase_/)
2853 $dir =~ s/^nobase_//;
2856 my $var = rvar ($key . '_LTLIBRARIES');
2858 # We reject libraries which are installed in several places
2859 # in the same condition, because we can only specify one
2861 $var->traverse_recursively
2864 my ($var, $val, $cond, $full_cond) = @_;
2865 my $hcond = $full_cond->human;
2866 my $where = $var->rdef ($cond)->location;
2868 $ldir = '/' . dirname ($val)
2869 if (!$strip_subdir);
2870 # A library cannot be installed in different directories
2871 # in overlapping conditions.
2872 if (exists $instconds{$val})
2875 $instconds{$val}->ambiguous_p ($val, $full_cond);
2879 error ($where, $msg, partial => 1);
2880 my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " `$dir'";
2881 $dirtxt = "built for `$dir'"
2882 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2884 $full_cond->true ? "" : " in condition $hcond";
2886 error ($where, "`$val' should be $dirtxt$dircond ...",
2889 my $hacond = $acond->human;
2890 my $adir = $instdirs{$val}{$acond};
2891 my $adirtxt = "installed in `$adir'";
2892 $adirtxt = "built for `$adir'"
2893 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2894 || $adir eq 'check');
2895 my $adircond = $acond->true ? "" : " in condition $hacond";
2897 my $onlyone = ($dir ne $adir) ?
2898 ("\nLibtool libraries can be built for only one "
2899 . "destination.") : "";
2901 error ($liblocations{$val}{$acond},
2902 "... and should also be $adirtxt$adircond.$onlyone");
2908 $instconds{$val} = new Automake::DisjConditions;
2910 $instdirs{$val}{$full_cond} = $dir;
2911 $instsubdirs{$val}{$full_cond} = $ldir;
2912 $liblocations{$val}{$full_cond} = $where;
2913 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2919 skip_ac_subst => 1);
2922 foreach my $pair (@liblist)
2924 my ($where, $onelib) = @$pair;
2926 my $seen_libobjs = 0;
2927 my $obj = get_object_extension '.lo';
2929 # Canonicalize names and check for misspellings.
2930 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2931 '_SOURCES', '_OBJECTS',
2934 # Check that the library fits the standard naming convention.
2935 my $libname_rx = '^lib.*\.la';
2936 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2937 my $ldvar2 = var ('LDFLAGS');
2938 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2939 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2941 # Relax name checking for libtool modules.
2942 $libname_rx = '\.la';
2945 my $bn = basename ($onelib);
2946 if ($bn !~ /$libname_rx$/)
2948 my $type = 'library';
2949 if ($libname_rx eq '\.la')
2951 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2956 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2958 my $suggestion = dirname ($onelib) . "/$bn";
2959 $suggestion =~ s|^\./||g;
2960 msg ('error-gnu/warn', $where,
2961 "`$onelib' is not a standard libtool $type name\n"
2962 . "did you mean `$suggestion'?")
2965 ($known_libraries{$onelib} = $bn) =~ s/\.la$//;
2967 $where->push_context ("while processing Libtool library `$onelib'");
2968 $where->set (INTERNAL->get);
2970 # Make sure we look at these.
2971 set_seen ($xlib . '_LDFLAGS');
2972 set_seen ($xlib . '_DEPENDENCIES');
2973 set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
2975 # Generate support for conditional object inclusion in
2977 if (var ($xlib . '_LIBADD'))
2979 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2986 &define_variable ($xlib . "_LIBADD", '', $where);
2989 reject_var ("${xlib}_LDADD",
2990 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2993 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2994 NONLIBTOOL => 0, LIBTOOL => 1);
2996 # Determine program to use for link.
2997 my($xlink, $vlink) = &define_per_target_linker_variable ($linker, $xlib);
2998 $vlink = verbose_flag ($vlink || 'GEN');
3000 my $rpathvar = "am_${xlib}_rpath";
3001 my $rpath = "\$($rpathvar)";
3002 foreach my $rcond ($instconds{$onelib}->conds)
3005 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
3006 || $instdirs{$onelib}{$rcond} eq 'noinst'
3007 || $instdirs{$onelib}{$rcond} eq 'check')
3009 # It's an EXTRA_ library, so we can't specify -rpath,
3010 # because we don't know where the library will end up.
3011 # The user probably knows, but generally speaking automake
3012 # doesn't -- and in fact configure could decide
3013 # dynamically between two different locations.
3018 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
3019 $val .= $instsubdirs{$onelib}{$rcond}
3020 if defined $instsubdirs{$onelib}{$rcond};
3024 # If $rcond is true there is only one condition and
3025 # there is no point defining an helper variable.
3030 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
3034 # If the resulting library lies into a subdirectory,
3035 # make sure this directory will exist.
3036 my $dirstamp = require_build_directory_maybe ($onelib);
3038 # Remember to cleanup .libs/ in this directory.
3039 my $dirname = dirname $onelib;
3040 $libtool_clean_directories{$dirname} = 1;
3042 $output_rules .= &file_contents ('ltlibrary',
3044 LTLIBRARY => $onelib,
3045 XLTLIBRARY => $xlib,
3049 DIRSTAMP => $dirstamp);
3052 if (var ($xlib . '_LIBADD'))
3054 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
3060 # See if any _SOURCES variable were misspelled.
3063 # It is ok if the user sets this particular variable.
3064 set_seen 'AM_LDFLAGS';
3066 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
3068 foreach my $var (variables $primary)
3070 my $varname = $var->name;
3071 # A configure variable is always legitimate.
3072 next if exists $configure_vars{$varname};
3074 for my $cond ($var->conditions->conds)
3076 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
3077 msg_var ('syntax', $var, "variable `$varname' is defined but no"
3078 . " program or\nlibrary has `$1' as canonical name"
3079 . " (possible typo)")
3080 unless $var->rdef ($cond)->seen;
3090 # NOTE we no longer automatically clean SCRIPTS, because it is
3091 # useful to sometimes distribute scripts verbatim. This happens
3092 # e.g. in Automake itself.
3093 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
3094 'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
3101 ## ------------------------ ##
3102 ## Handling Texinfo files. ##
3103 ## ------------------------ ##
3105 # ($OUTFILE, $VFILE, @CLEAN_FILES)
3106 # &scan_texinfo_file ($FILENAME)
3107 # ------------------------------
3108 # $OUTFILE - name of the info file produced by $FILENAME.
3109 # $VFILE - name of the version.texi file used (undef if none).
3110 # @CLEAN_FILES - list of byproducts (indexes etc.)
3111 sub scan_texinfo_file ($)
3113 my ($filename) = @_;
3115 # Some of the following extensions are always created, no matter
3116 # whether indexes are used or not. Other (like cps, fns, ... pgs)
3117 # are only created when they are used. We used to scan $FILENAME
3118 # for their use, but that is not enough: they could be used in
3119 # included files. We can't scan included files because we don't
3120 # know the include path. Therefore we always erase these files, no
3121 # matter whether they are used or not.
3123 # (tmp is only created if an @macro is used and a certain e-TeX
3124 # feature is not available.)
3125 my %clean_suffixes =
3126 map { $_ => 1 } (qw(aux log toc tmp
3132 pg pgs)); # grep 'new.*index' texinfo.tex
3134 my $texi = new Automake::XFile "< $filename";
3135 verb "reading $filename";
3137 my ($outfile, $vfile);
3138 while ($_ = $texi->getline)
3140 if (/^\@setfilename +(\S+)/)
3142 # Honor only the first @setfilename. (It's possible to have
3143 # more occurrences later if the manual shows examples of how
3144 # to use @setfilename...)
3148 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
3150 error ("$filename:$.",
3151 "output `$outfile' has unrecognized extension");
3155 # A "version.texi" file is actually any file whose name matches
3157 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
3162 # Try to find new or unused indexes.
3164 # Creating a new category of index.
3165 elsif (/^\@def(code)?index (\w+)/)
3167 $clean_suffixes{$2} = 1;
3168 $clean_suffixes{"$2s"} = 1;
3171 # Merging an index into an another.
3172 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3174 delete $clean_suffixes{"$2s"};
3175 $clean_suffixes{"$3s"} = 1;
3182 err_am "`$filename' missing \@setfilename";
3186 my $infobase = basename ($filename);
3187 $infobase =~ s/\.te?xi(nfo)?$//;
3188 return ($outfile, $vfile,
3189 map { "$infobase.$_" } (sort keys %clean_suffixes));
3193 # ($DIRSTAMP, @CLEAN_FILES)
3194 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
3195 # ------------------------------------------------------------------
3196 # SOURCE - the source Texinfo file
3197 # DEST - the destination Info file
3198 # INSRC - whether DEST should be built in the source tree
3199 # DEPENDENCIES - known dependencies
3200 sub output_texinfo_build_rules ($$$@)
3202 my ($source, $dest, $insrc, @deps) = @_;
3204 # Split `a.texi' into `a' and `.texi'.
3205 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
3206 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
3211 # We can output two kinds of rules: the "generic" rules use Make
3212 # suffix rules and are appropriate when $source and $dest do not lie
3213 # in a sub-directory; the "specific" rules are needed in the other
3216 # The former are output only once (this is not really apparent here,
3217 # but just remember that some logic deeper in Automake will not
3218 # output the same rule twice); while the later need to be output for
3219 # each Texinfo source.
3222 my $sdir = dirname $source;
3223 if ($sdir eq '.' && dirname ($dest) eq '.')
3226 $makeinfoflags = '-I $(srcdir)';
3231 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
3234 # A directory can contain two kinds of info files: some built in the
3235 # source tree, and some built in the build tree. The rules are
3236 # different in each case. However we cannot output two different
3237 # set of generic rules. Because in-source builds are more usual, we
3238 # use generic rules in this case and fall back to "specific" rules
3239 # for build-dir builds. (It should not be a problem to invert this
3241 $generic = 0 unless $insrc;
3243 # We cannot use a suffix rule to build info files with an empty
3244 # extension. Otherwise we would output a single suffix inference
3245 # rule, with separate dependencies, as in
3249 # foo.info: foo.texi
3251 # which confuse Solaris make. (See the Autoconf manual for
3252 # details.) Therefore we use a specific rule in this case. This
3253 # applies to info files only (dvi and pdf files always have an
3255 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3257 # If the resulting file lie into a subdirectory,
3258 # make sure this directory will exist.
3259 my $dirstamp = require_build_directory_maybe ($dest);
3261 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3263 $output_rules .= file_contents ('texibuild',
3264 new Automake::Location,
3266 DEST_PREFIX => $dpfx,
3267 DEST_INFO_PREFIX => $dipfx,
3268 DEST_SUFFIX => $dsfx,
3269 DIRSTAMP => $dirstamp,
3270 GENERIC => $generic,
3271 GENERIC_INFO => $generic_info,
3273 MAKEINFOFLAGS => $makeinfoflags,
3276 SOURCE_INFO => ($generic_info
3278 SOURCE_REAL => $source,
3279 SOURCE_SUFFIX => $ssfx,
3281 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3285 # ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
3286 # handle_texinfo_helper ($info_texinfos)
3287 # --------------------------------------
3288 # Handle all Texinfo source; helper for handle_texinfo.
3289 sub handle_texinfo_helper ($)
3291 my ($info_texinfos) = @_;
3292 my (@infobase, @info_deps_list, @texi_deps);
3295 my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
3297 # Build a regex matching user-cleaned files.
3298 my $d = var 'DISTCLEANFILES';
3299 my $c = var 'CLEANFILES';
3301 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3302 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3303 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3304 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3307 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3309 my $infobase = $texi;
3310 $infobase =~ s/\.(txi|texinfo|texi)$//;
3312 if ($infobase eq $texi)
3314 # FIXME: report line number.
3315 err_am "texinfo file `$texi' has unrecognized extension";
3319 push @infobase, $infobase;
3321 # If 'version.texi' is referenced by input file, then include
3322 # automatic versioning capability.
3323 my ($out_file, $vtexi, @clean_files) =
3324 scan_texinfo_file ("$relative_dir/$texi")
3326 push (@mostly_cleans, @clean_files);
3328 # If the Texinfo source is in a subdirectory, create the
3329 # resulting info in this subdirectory. If it is in the current
3330 # directory, try hard to not prefix "./" because it breaks the
3332 my $outdir = dirname ($texi) . '/';
3333 $outdir = "" if $outdir eq './';
3334 $out_file = $outdir . $out_file;
3336 # Until Automake 1.6.3, .info files were built in the
3337 # source tree. This was an obstacle to the support of
3338 # non-distributed .info files, and non-distributed .texi
3341 # * Non-distributed .texi files is important in some packages
3342 # where .texi files are built at make time, probably using
3343 # other binaries built in the package itself, maybe using
3344 # tools or information found on the build host. Because
3345 # these files are not distributed they are always rebuilt
3346 # at make time; they should therefore not lie in the source
3347 # directory. One plan was to support this using
3348 # nodist_info_TEXINFOS or something similar. (Doing this
3349 # requires some sanity checks. For instance Automake should
3351 # dist_info_TEXINFOS = foo.texi
3352 # nodist_foo_TEXINFOS = included.texi
3353 # because a distributed file should never depend on a
3354 # non-distributed file.)
3356 # * If .texi files are not distributed, then .info files should
3357 # not be distributed either. There are also cases where one
3358 # wants to distribute .texi files, but does not want to
3359 # distribute the .info files. For instance the Texinfo package
3360 # distributes the tool used to build these files; it would
3361 # be a waste of space to distribute them. It's not clear
3362 # which syntax we should use to indicate that .info files should
3363 # not be distributed. Akim Demaille suggested that eventually
3364 # we switch to a new syntax:
3365 # | Maybe we should take some inspiration from what's already
3366 # | done in the rest of Automake. Maybe there is too much
3367 # | syntactic sugar here, and you want
3368 # | nodist_INFO = bar.info
3369 # | dist_bar_info_SOURCES = bar.texi
3370 # | bar_texi_DEPENDENCIES = foo.texi
3371 # | with a bit of magic to have bar.info represent the whole
3372 # | bar*info set. That's a lot more verbose that the current
3373 # | situation, but it is # not new, hence the user has less
3376 # | But there is still too much room for meaningless specs:
3377 # | nodist_INFO = bar.info
3378 # | dist_bar_info_SOURCES = bar.texi
3379 # | dist_PS = bar.ps something-written-by-hand.ps
3380 # | nodist_bar_ps_SOURCES = bar.texi
3381 # | bar_texi_DEPENDENCIES = foo.texi
3382 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3384 # Back to the point, it should be clear that in order to support
3385 # non-distributed .info files, we need to build them in the
3386 # build tree, not in the source tree (non-distributed .texi
3387 # files are less of a problem, because we do not output build
3388 # rules for them). In Automake 1.7 .info build rules have been
3389 # largely cleaned up so that .info files get always build in the
3390 # build tree, even when distributed. The idea was that
3391 # (1) if during a VPATH build the .info file was found to be
3392 # absent or out-of-date (in the source tree or in the
3393 # build tree), Make would rebuild it in the build tree.
3394 # If an up-to-date source-tree of the .info file existed,
3395 # make would not rebuild it in the build tree.
3396 # (2) having two copies of .info files, one in the source tree
3397 # and one (newer) in the build tree is not a problem
3398 # because `make dist' always pick files in the build tree
3400 # However it turned out the be a bad idea for several reasons:
3401 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3402 # like GNU Make on point (1) above. These implementations
3403 # of Make would always rebuild .info files in the build
3404 # tree, even if such files were up to date in the source
3405 # tree. Consequently, it was impossible to perform a VPATH
3406 # build of a package containing Texinfo files using these
3407 # Make implementations.
3408 # (Refer to the Autoconf Manual, section "Limitation of
3409 # Make", paragraph "VPATH", item "target lookup", for
3410 # an account of the differences between these
3412 # * The GNU Coding Standards require these files to be built
3413 # in the source-tree (when they are distributed, that is).
3414 # * Keeping a fresher copy of distributed files in the
3415 # build tree can be annoying during development because
3416 # - if the files is kept under CVS, you really want it
3417 # to be updated in the source tree
3418 # - it is confusing that `make distclean' does not erase
3419 # all files in the build tree.
3421 # Consequently, starting with Automake 1.8, .info files are
3422 # built in the source tree again. Because we still plan to
3423 # support non-distributed .info files at some point, we
3424 # have a single variable ($INSRC) that controls whether
3425 # the current .info file must be built in the source tree
3426 # or in the build tree. Actually this variable is switched
3427 # off for .info files that appear to be cleaned; this is
3428 # for backward compatibility with package such as Texinfo,
3429 # which do things like
3430 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3431 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3432 # # Do not create info files for distribution.
3434 # in order not to distribute .info files.
3435 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3437 my $soutdir = '$(srcdir)/' . $outdir;
3438 $outdir = $soutdir if $insrc;
3440 # If user specified file_TEXINFOS, then use that as explicit
3443 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3445 my $canonical = canonicalize ($infobase);
3446 if (var ($canonical . "_TEXINFOS"))
3448 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3449 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3452 my ($dirstamp, @cfiles) =
3453 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3454 push (@texi_cleans, @cfiles);
3456 push (@info_deps_list, $out_file);
3458 # If a vers*.texi file is needed, emit the rule.
3461 err_am ("`$vtexi', included in `$texi', "
3462 . "also included in `$versions{$vtexi}'")
3463 if defined $versions{$vtexi};
3464 $versions{$vtexi} = $texi;
3466 # We number the stamp-vti files. This is doable since the
3467 # actual names don't matter much. We only number starting
3468 # with the second one, so that the common case looks nice.
3469 my $vti = ($done ? $done : 'vti');
3472 # This is ugly, but it is our historical practice.
3473 if ($config_aux_dir_set_in_configure_ac)
3475 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3480 require_file_with_macro (TRUE, 'info_TEXINFOS',
3481 FOREIGN, 'mdate-sh');
3485 if ($config_aux_dir_set_in_configure_ac)
3487 $conf_dir = "$am_config_aux_dir/";
3491 $conf_dir = '$(srcdir)/';
3493 $output_rules .= file_contents ('texi-vers',
3494 new Automake::Location,
3497 STAMPVTI => "${soutdir}stamp-$vti",
3498 VTEXI => "$soutdir$vtexi",
3500 DIRSTAMP => $dirstamp);
3504 # Handle location of texinfo.tex.
3505 my $need_texi_file = 0;
3507 if (var ('TEXINFO_TEX'))
3509 # The user defined TEXINFO_TEX so assume he knows what he is
3511 $texinfodir = ('$(srcdir)/'
3512 . dirname (variable_value ('TEXINFO_TEX')));
3514 elsif (option 'cygnus')
3516 $texinfodir = '$(top_srcdir)/../texinfo';
3517 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3519 elsif ($config_aux_dir_set_in_configure_ac)
3521 $texinfodir = $am_config_aux_dir;
3522 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3523 $need_texi_file = 2; # so that we require_conf_file later
3527 $texinfodir = '$(srcdir)';
3528 $need_texi_file = 1;
3530 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3532 push (@dist_targets, 'dist-info');
3534 if (! option 'no-installinfo')
3536 # Make sure documentation is made and installed first. Use
3537 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3538 # get run twice during "make all".
3539 unshift (@all, '$(INFO_DEPS)');
3542 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3543 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3544 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3545 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3547 # This next isn't strictly needed now -- the places that look here
3548 # could easily be changed to look in info_TEXINFOS. But this is
3549 # probably better, in case noinst_TEXINFOS is ever supported.
3550 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3552 # Do some error checking. Note that this file is not required
3553 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3555 if ($need_texi_file && ! option 'no-texinfo.tex')
3557 if ($need_texi_file > 1)
3559 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3564 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3569 return (makefile_wrap ("", "\t ", @mostly_cleans),
3570 makefile_wrap ("", "\t ", @texi_cleans),
3571 makefile_wrap ("", "\t ", @maint_cleans));
3577 # Handle all Texinfo source.
3578 sub handle_texinfo ()
3580 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3581 # FIXME: I think this is an obsolete future feature name.
3582 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3584 my $info_texinfos = var ('info_TEXINFOS');
3585 my ($mostlyclean, $clean, $maintclean) = ('', '', '');
3588 ($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
3594 $output_rules .= file_contents ('texinfos',
3595 new Automake::Location,
3596 MOSTLYCLEAN => $mostlyclean,
3597 TEXICLEAN => $clean,
3598 MAINTCLEAN => $maintclean,
3599 'LOCAL-TEXIS' => !!$info_texinfos);
3603 # Handle any man pages.
3604 sub handle_man_pages
3606 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3608 # Find all the sections in use. We do this by first looking for
3609 # "standard" sections, and then looking for any additional
3610 # sections used in man_MANS.
3611 my (%sections, %notrans_sections, %trans_sections,
3612 %notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
3613 # We handle nodist_ for uniformity. man pages aren't distributed
3614 # by default so it isn't actually very important.
3615 foreach my $npfx ('', 'notrans_')
3617 foreach my $pfx ('', 'dist_', 'nodist_')
3619 # Add more sections as needed.
3620 foreach my $section ('0'..'9', 'n', 'l')
3622 my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
3625 $sections{$section} = 1;
3626 $varname = '$(' . $varname . ')';
3627 if ($npfx eq 'notrans_')
3629 $notrans_sections{$section} = 1;
3630 $notrans_sect_vars{$varname} = 1;
3634 $trans_sections{$section} = 1;
3635 $trans_sect_vars{$varname} = 1;
3638 &push_dist_common ($varname)
3643 my $varname = $npfx . $pfx . 'man_MANS';
3644 my $var = var ($varname);
3647 foreach ($var->value_as_list_recursive)
3649 # A page like `foo.1c' goes into man1dir.
3650 if (/\.([0-9a-z])([a-z]*)$/)
3653 if ($npfx eq 'notrans_')
3655 $notrans_sections{$1} = 1;
3659 $trans_sections{$1} = 1;
3664 $varname = '$(' . $varname . ')';
3665 if ($npfx eq 'notrans_')
3667 $notrans_vars{$varname} = 1;
3671 $trans_vars{$varname} = 1;
3673 &push_dist_common ($varname)
3679 return unless %sections;
3683 # Build section independent variables.
3684 my $have_notrans = %notrans_vars;
3685 my @notrans_list = sort keys %notrans_vars;
3686 my $have_trans = %trans_vars;
3687 my @trans_list = sort keys %trans_vars;
3689 # Now for each section, generate an install and uninstall rule.
3690 # Sort sections so output is deterministic.
3691 foreach my $section (sort keys %sections)
3693 # Build section dependent variables.
3694 my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
3695 my $trans_mans = $have_trans || exists $trans_sections{$section};
3696 my (%notrans_this_sect, %trans_this_sect);
3697 my $expr = 'man' . $section . '_MANS';
3698 foreach my $varname (keys %notrans_sect_vars)
3700 if ($varname =~ /$expr/)
3702 $notrans_this_sect{$varname} = 1;
3705 foreach my $varname (keys %trans_sect_vars)
3707 if ($varname =~ /$expr/)
3709 $trans_this_sect{$varname} = 1;
3712 my @notrans_sect_list = sort keys %notrans_this_sect;
3713 my @trans_sect_list = sort keys %trans_this_sect;
3714 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3715 keys %notrans_this_sect, keys %trans_this_sect);
3716 my @deps = sort @unsorted_deps;
3717 $output_rules .= &file_contents ('mans',
3718 new Automake::Location,
3719 SECTION => $section,
3721 NOTRANS_MANS => $notrans_mans,
3722 NOTRANS_SECT_LIST => "@notrans_sect_list",
3723 HAVE_NOTRANS => $have_notrans,
3724 NOTRANS_LIST => "@notrans_list",
3725 TRANS_MANS => $trans_mans,
3726 TRANS_SECT_LIST => "@trans_sect_list",
3727 HAVE_TRANS => $have_trans,
3728 TRANS_LIST => "@trans_list");
3731 @unsorted_deps = (keys %notrans_vars, keys %trans_vars,
3732 keys %notrans_sect_vars, keys %trans_sect_vars);
3733 my @mans = sort @unsorted_deps;
3734 $output_vars .= file_contents ('mans-vars',
3735 new Automake::Location,
3738 push (@all, '$(MANS)')
3739 unless option 'no-installman';
3742 # Handle DATA variables.
3745 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3746 'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
3747 'ps', 'sysconf', 'sharedstate', 'localstate',
3748 'pkgdata', 'lisp', 'noinst', 'check');
3756 if (var ('SUBDIRS'))
3758 $output_rules .= ("tags-recursive:\n"
3759 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3760 # Never fail here if a subdir fails; it
3762 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3763 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3765 push (@tag_deps, 'tags-recursive');
3766 &depend ('.PHONY', 'tags-recursive');
3767 &depend ('.MAKE', 'tags-recursive');
3769 $output_rules .= ("ctags-recursive:\n"
3770 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3771 # Never fail here if a subdir fails; it
3773 . "\t test \"\$\$subdir\" = . || (\$(am__cd) \$\$subdir"
3774 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3776 push (@ctag_deps, 'ctags-recursive');
3777 &depend ('.PHONY', 'ctags-recursive');
3778 &depend ('.MAKE', 'ctags-recursive');
3781 if (&saw_sources_p (1)
3782 || var ('ETAGS_ARGS')
3786 foreach my $spec (@config_headers)
3788 my ($out, @ins) = split_config_file_spec ($spec);
3789 foreach my $in (@ins)
3791 # If the config header source is in this directory,
3793 push @config, basename ($in)
3794 if $relative_dir eq dirname ($in);
3797 $output_rules .= &file_contents ('tags',
3798 new Automake::Location,
3799 CONFIG => "@config",
3800 TAGSDIRS => "@tag_deps",
3801 CTAGSDIRS => "@ctag_deps");
3803 set_seen 'TAGS_DEPENDENCIES';
3805 elsif (reject_var ('TAGS_DEPENDENCIES',
3806 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3807 . "without\nsources or `ETAGS_ARGS'"))
3812 # Every Makefile must define some sort of TAGS rule.
3813 # Otherwise, it would be possible for a top-level "make TAGS"
3814 # to fail because some subdirectory failed.
3815 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3817 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3821 # Handle multilib support.
3824 if ($seen_multilib && $relative_dir eq '.')
3826 $output_rules .= &file_contents ('multilib', new Automake::Location);
3827 push (@all, 'all-multi');
3832 # user_phony_rule ($NAME)
3833 # -----------------------
3834 # Return false if rule $NAME does not exist. Otherwise,
3835 # declare it as phony, complete its definition (in case it is
3836 # conditional), and return its Automake::Rule instance.
3837 sub user_phony_rule ($)
3840 my $rule = rule $name;
3843 depend ('.PHONY', $name);
3844 # Define $NAME in all condition where it is not already defined,
3845 # so that it is always OK to depend on $NAME.
3846 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3848 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3850 $output_rules .= $c->subst_string . "$name:\n";
3858 # &for_dist_common ($A, $B)
3859 # -------------------------
3860 # Subroutine for &handle_dist: sort files to dist.
3862 # We put README first because it then becomes easier to make a
3863 # Usenet-compliant shar file (in these, README must be first).
3865 # FIXME: do more ordering of files here.
3879 # Handle 'dist' target.
3882 # Substitutions for distdir.am
3885 # Define DIST_SUBDIRS. This must always be done, regardless of the
3886 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3887 my $subdirs = var ('SUBDIRS');
3890 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3891 # to all possible directories, and use it. If DIST_SUBDIRS is
3892 # defined, just use it.
3894 # Note that we check DIST_SUBDIRS first on purpose, so that
3895 # we don't call has_conditional_contents for now reason.
3896 # (In the past one project used so many conditional subdirectories
3897 # that calling has_conditional_contents on SUBDIRS caused
3898 # automake to grow to 150Mb -- this should not happen with
3899 # the current implementation of has_conditional_contents,
3900 # but it's more efficient to avoid the call anyway.)
3901 if (var ('DIST_SUBDIRS'))
3904 elsif ($subdirs->has_conditional_contents)
3906 define_pretty_variable
3907 ('DIST_SUBDIRS', TRUE, INTERNAL,
3908 uniq ($subdirs->value_as_list_recursive));
3912 # We always define this because that is what `distclean'
3914 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3919 # The remaining definitions are only required when a dist target is used.
3920 return if option 'no-dist';
3922 # At least one of the archive formats must be enabled.
3923 if ($relative_dir eq '.')
3925 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3926 $archive_defined ||=
3927 grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip lzma xz);
3928 error (option 'no-dist-gzip',
3929 "no-dist-gzip specified but no dist-* specified, "
3930 . "at least one archive format must be enabled")
3931 unless $archive_defined;
3934 # Look for common files that should be included in distribution.
3935 # If the aux dir is set, and it does not have a Makefile.am, then
3936 # we check for these files there as well.
3938 if ($relative_dir eq '.'
3939 && $config_aux_dir_set_in_configure_ac)
3941 if (! &is_make_dir ($config_aux_dir))
3946 foreach my $cfile (@common_files)
3948 if (dir_has_case_matching_file ($relative_dir, $cfile)
3949 # The file might be absent, but if it can be built it's ok.
3952 &push_dist_common ($cfile);
3955 # Don't use `elsif' here because a file might meaningfully
3956 # appear in both directories.
3957 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3959 &push_dist_common ("$config_aux_dir/$cfile")
3963 # We might copy elements from $configure_dist_common to
3964 # %dist_common if we think we need to. If the file appears in our
3965 # directory, we would have discovered it already, so we don't
3966 # check that. But if the file is in a subdir without a Makefile,
3967 # we want to distribute it here if we are doing `.'. Ugly!
3968 if ($relative_dir eq '.')
3970 foreach my $file (split (' ' , $configure_dist_common))
3972 push_dist_common ($file)
3973 unless is_make_dir (dirname ($file));
3977 # Files to distributed. Don't use ->value_as_list_recursive
3978 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3979 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3980 @dist_common = uniq (sort for_dist_common (@dist_common));
3981 variable_delete 'DIST_COMMON';
3982 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3984 # Now that we've processed DIST_COMMON, disallow further attempts
3986 $handle_dist_run = 1;
3988 # Scan EXTRA_DIST to see if we need to distribute anything from a
3989 # subdir. If so, add it to the list. I didn't want to do this
3990 # originally, but there were so many requests that I finally
3992 my $extra_dist = var ('EXTRA_DIST');
3994 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3995 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3997 # If the target `dist-hook' exists, make sure it is run. This
3998 # allows users to do random weird things to the distribution
3999 # before it is packaged up.
4000 push (@dist_targets, 'dist-hook')
4001 if user_phony_rule 'dist-hook';
4002 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
4004 my $flm = option ('filename-length-max');
4005 my $filename_filter = $flm ? '.' x $flm->[1] : '';
4007 $output_rules .= &file_contents ('distdir',
4008 new Automake::Location,
4010 FILENAME_FILTER => $filename_filter);
4014 # check_directory ($NAME, $WHERE)
4015 # -------------------------------
4016 # Ensure $NAME is a directory, and that it uses a sane name.
4017 # Use $WHERE as a location in the diagnostic, if any.
4018 sub check_directory ($$)
4020 my ($dir, $where) = @_;
4022 error $where, "required directory $relative_dir/$dir does not exist"
4023 unless -d "$relative_dir/$dir";
4025 # If an `obj/' directory exists, BSD make will enter it before
4026 # reading `Makefile'. Hence the `Makefile' in the current directory
4032 # % cat obj/Makefile
4038 # % pmake # BSD make
4041 msg ('portability', $where,
4042 "naming a subdirectory `obj' causes troubles with BSD make")
4045 # `aux' is probably the most important of the following forbidden name,
4046 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
4047 msg ('portability', $where,
4048 "name `$dir' is reserved on W32 and DOS platforms")
4049 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
4052 # check_directories_in_var ($VARIABLE)
4053 # ------------------------------------
4054 # Recursively check all items in variables $VARIABLE as directories
4055 sub check_directories_in_var ($)
4058 $var->traverse_recursively
4061 my ($var, $val, $cond, $full_cond) = @_;
4062 check_directory ($val, $var->rdef ($cond)->location);
4066 skip_ac_subst => 1);
4069 # &handle_subdirs ()
4070 # ------------------
4071 # Handle subdirectories.
4072 sub handle_subdirs ()
4074 my $subdirs = var ('SUBDIRS');
4078 check_directories_in_var $subdirs;
4080 my $dsubdirs = var ('DIST_SUBDIRS');
4081 check_directories_in_var $dsubdirs
4084 $output_rules .= &file_contents ('subdirs', new Automake::Location);
4085 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
4089 # ($REGEN, @DEPENDENCIES)
4092 # If aclocal.m4 creation is automated, return the list of its dependencies.
4093 sub scan_aclocal_m4 ()
4095 my $regen_aclocal = 0;
4097 set_seen 'CONFIG_STATUS_DEPENDENCIES';
4098 set_seen 'CONFIGURE_DEPENDENCIES';
4100 if (-f 'aclocal.m4')
4102 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
4104 my $aclocal = new Automake::XFile "< aclocal.m4";
4105 my $line = $aclocal->getline;
4106 $regen_aclocal = $line =~ 'generated automatically by aclocal';
4111 if (set_seen ('ACLOCAL_M4_SOURCES'))
4113 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
4114 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
4115 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
4116 . "It should be safe to simply remove it.");
4119 # Note that it might be possible that aclocal.m4 doesn't exist but
4120 # should be auto-generated. This case probably isn't very
4123 return ($regen_aclocal, @ac_deps);
4127 # Helper function for substitute_ac_subst_variables.
4128 sub substitute_ac_subst_variables_worker($)
4131 return "\@$token\@" if var $token;
4132 return "\${$token\}";
4135 # substitute_ac_subst_variables ($TEXT)
4136 # -------------------------------------
4137 # Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
4139 sub substitute_ac_subst_variables ($)
4142 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
4147 # &prepend_srcdir (@INPUTS)
4148 # -------------------------
4149 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
4150 # if an input file has a directory part the same as the current
4151 # directory, then the directory part is simply replaced by $(srcdir).
4152 # But if the directory part is different, then $(top_srcdir) is
4154 sub prepend_srcdir (@)
4159 foreach my $single (@inputs)
4161 if (dirname ($single) eq $relative_dir)
4163 push (@newinputs, '$(srcdir)/' . basename ($single));
4167 push (@newinputs, '$(top_srcdir)/' . $single);
4174 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
4175 # ---------------------------------------------------
4176 # Compute a list of dependencies appropriate for the rebuild
4178 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
4179 # Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
4180 sub rewrite_inputs_into_dependencies ($@)
4182 my ($file, @inputs) = @_;
4187 # We cannot create dependencies on shell variables.
4188 next if (substitute_ac_subst_variables $i) =~ /\$/;
4190 if (exists $ac_config_files_location{$i} && $i ne $file)
4192 my $di = dirname $i;
4193 if ($di eq $relative_dir)
4197 # In the top-level Makefile we do not use $(top_builddir), because
4198 # we are already there, and since the targets are built without
4199 # a $(top_builddir), it helps BSD Make to match them with
4201 elsif ($relative_dir ne '.')
4203 $i = '$(top_builddir)/' . $i;
4208 msg ('error', $ac_config_files_location{$file},
4209 "required file `$i' not found")
4210 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
4211 ($i) = prepend_srcdir ($i);
4212 push_dist_common ($i);
4221 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
4222 # ------------------------------------------------------------------
4223 # Handle remaking and configure stuff.
4224 # We need the name of the input file, to do proper remaking rules.
4225 sub handle_configure ($$$@)
4227 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
4229 prog_error 'empty @inputs'
4232 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
4234 my $rel_makefile = basename $makefile;
4236 my $colon_infile = ':' . join (':', @inputs);
4237 $colon_infile = '' if $colon_infile eq ":$makefile.in";
4238 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
4239 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
4240 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
4241 @configure_deps, @aclocal_m4_deps,
4242 '$(top_srcdir)/' . $configure_ac);
4243 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
4244 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
4245 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
4248 my $automake_options = '--' . (global_option 'cygnus' ? 'cygnus' : $strictness_name)
4249 . (global_option 'no-dependencies' ? ' --ignore-deps' : '');
4251 $output_rules .= file_contents
4253 new Automake::Location,
4254 MAKEFILE => $rel_makefile,
4255 'MAKEFILE-DEPS' => "@rewritten",
4256 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
4257 'MAKEFILE-IN' => $rel_makefile_in,
4258 'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
4259 'MAKEFILE-IN-DEPS' => "@include_stack",
4260 'MAKEFILE-AM' => $rel_makefile_am,
4261 'AUTOMAKE-OPTIONS' => $automake_options,
4262 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
4263 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
4264 VERBOSE => verbose_flag ('GEN'));
4266 if ($relative_dir eq '.')
4268 &push_dist_common ('acconfig.h')
4272 # If we have a configure header, require it.
4274 my @distclean_config;
4275 foreach my $spec (@config_headers)
4278 # $CONFIG_H_PATH: config.h from top level.
4279 my ($config_h_path, @ins) = split_config_file_spec ($spec);
4280 my $config_h_dir = dirname ($config_h_path);
4282 # If the header is in the current directory we want to build
4283 # the header here. Otherwise, if we're at the topmost
4284 # directory and the header's directory doesn't have a
4285 # Makefile, then we also want to build the header.
4286 if ($relative_dir eq $config_h_dir
4287 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
4289 my ($cn_sans_dir, $stamp_dir);
4290 if ($relative_dir eq $config_h_dir)
4292 $cn_sans_dir = basename ($config_h_path);
4297 $cn_sans_dir = $config_h_path;
4298 if ($config_h_dir eq '.')
4304 $stamp_dir = $config_h_dir . '/';
4308 # This will also distribute all inputs.
4309 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
4311 # Cannot define rebuild rules for filenames with shell variables.
4312 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
4314 # Header defined in this directory.
4316 if (-f $config_h_path . '.top')
4318 push (@files, "$cn_sans_dir.top");
4320 if (-f $config_h_path . '.bot')
4322 push (@files, "$cn_sans_dir.bot");
4325 push_dist_common (@files);
4327 # For now, acconfig.h can only appear in the top srcdir.
4328 if (-f 'acconfig.h')
4330 push (@files, '$(top_srcdir)/acconfig.h');
4333 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4335 file_contents ('remake-hdr',
4336 new Automake::Location,
4338 CONFIG_H => $cn_sans_dir,
4339 CONFIG_HIN => $ins[0],
4340 CONFIG_H_DEPS => "@ins",
4341 CONFIG_H_PATH => $config_h_path,
4344 push @distclean_config, $cn_sans_dir, $stamp;
4348 $output_rules .= file_contents ('clean-hdr',
4349 new Automake::Location,
4350 FILES => "@distclean_config")
4351 if @distclean_config;
4353 # Distribute and define mkinstalldirs only if it is already present
4354 # in the package, for backward compatibility (some people may still
4355 # use $(mkinstalldirs)).
4356 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4359 # Use require_file so that any existing script gets updated
4360 # by --force-missing.
4361 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4362 define_variable ('mkinstalldirs',
4363 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4367 # Use $(install_sh), not $(MKDIR_P) because the latter requires
4368 # at least one argument, and $(mkinstalldirs) used to work
4369 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4370 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4373 reject_var ('CONFIG_HEADER',
4374 "`CONFIG_HEADER' is an anachronism; now determined "
4375 . "automatically\nfrom `$configure_ac'");
4378 foreach my $spec (@config_headers)
4380 my ($out, @ins) = split_config_file_spec ($spec);
4381 # Generate CONFIG_HEADER define.
4382 if ($relative_dir eq dirname ($out))
4384 push @config_h, basename ($out);
4388 push @config_h, "\$(top_builddir)/$out";
4391 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4394 # Now look for other files in this directory which must be remade
4395 # by config.status, and generate rules for them.
4396 my @actual_other_files = ();
4397 # These get cleaned only in a VPATH build.
4398 my @actual_other_vpath_files = ();
4399 foreach my $lfile (@other_input_files)
4403 if ($lfile =~ /^([^:]*):(.*)$/)
4405 # This is the ":" syntax of AC_OUTPUT.
4407 @inputs = split (':', $2);
4413 @inputs = $file . '.in';
4416 # Automake files should not be stored in here, but in %MAKE_LIST.
4417 prog_error ("$lfile in \@other_input_files\n"
4418 . "\@other_input_files = (@other_input_files)")
4419 if -f $file . '.am';
4421 my $local = basename ($file);
4423 # We skip files that aren't in this directory. However, if
4424 # the file's directory does not have a Makefile, and we are
4425 # currently doing `.', then we create a rule to rebuild the
4426 # file in the subdir.
4427 my $fd = dirname ($file);
4428 if ($fd ne $relative_dir)
4430 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4440 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4442 # Cannot output rules for shell variables.
4443 next if (substitute_ac_subst_variables $local) =~ /\$/;
4446 my $cond = $ac_config_files_condition{$lfile};
4449 $condstr = $cond->subst_string;
4450 Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
4451 $ac_config_files_location{$file});
4453 $output_rules .= ($condstr . $local . ': '
4454 . '$(top_builddir)/config.status '
4455 . "@rewritten_inputs\n"
4457 . 'cd $(top_builddir) && '
4458 . '$(SHELL) ./config.status '
4459 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4462 push (@actual_other_files, $local);
4465 # For links we should clean destinations and distribute sources.
4466 foreach my $spec (@config_links)
4468 my ($link, $file) = split /:/, $spec;
4469 # Some people do AC_CONFIG_LINKS($computed). We only handle
4470 # the DEST:SRC form.
4472 my $where = $ac_config_files_location{$link};
4474 # Skip destinations that contain shell variables.
4475 if ((substitute_ac_subst_variables $link) !~ /\$/)
4477 # We skip links that aren't in this directory. However, if
4478 # the link's directory does not have a Makefile, and we are
4479 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4480 # in `.'s Makefile.in.
4481 my $local = basename ($link);
4482 my $fd = dirname ($link);
4483 if ($fd ne $relative_dir)
4485 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4496 push @actual_other_files, $local if $local;
4500 push @actual_other_vpath_files, $local if $local;
4504 # Do not process sources that contain shell variables.
4505 if ((substitute_ac_subst_variables $file) !~ /\$/)
4507 my $fd = dirname ($file);
4509 # We distribute files that are in this directory.
4510 # At the top-level (`.') we also distribute files whose
4511 # directory does not have a Makefile.
4512 if (($fd eq $relative_dir)
4513 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4515 # The following will distribute $file as a side-effect when
4516 # it is appropriate (i.e., when $file is not already an output).
4517 # We do not need the result, just the side-effect.
4518 rewrite_inputs_into_dependencies ($link, $file);
4523 # These files get removed by "make distclean".
4524 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4525 @actual_other_files);
4526 define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
4527 @actual_other_vpath_files);
4533 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4534 'oldinclude', 'pkginclude',
4538 next unless $_->[1] =~ /\..*$/;
4539 &saw_extension ($&);
4545 return if ! $seen_gettext || $relative_dir ne '.';
4547 my $subdirs = var 'SUBDIRS';
4551 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4555 # Perform some sanity checks to help users get the right setup.
4556 # We disable these tests when po/ doesn't exist in order not to disallow
4557 # unusual gettext setups.
4562 # | 1) If a package doesn't have a directory po/ at top level, it
4563 # | will likely have multiple po/ directories in subpackages.
4565 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4566 # | is used without 'external'. It is also useful to warn for the
4567 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4568 # | warnings apply only to the usual layout of packages, therefore
4569 # | they should both be disabled if no po/ directory is found at
4574 my @subdirs = $subdirs->value_as_list_recursive;
4576 msg_var ('syntax', $subdirs,
4577 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4578 if ! grep ($_ eq 'po', @subdirs);
4580 # intl/ is not required when AM_GNU_GETTEXT is called with the
4581 # `external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
4582 msg_var ('syntax', $subdirs,
4583 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4584 if (! ($seen_gettext_external && ! $seen_gettext_intl)
4585 && ! grep ($_ eq 'intl', @subdirs));
4587 # intl/ should not be used with AM_GNU_GETTEXT([external]), except
4588 # if AM_GNU_GETTEXT_INTL_SUBDIR is called.
4589 msg_var ('syntax', $subdirs,
4590 "`intl' should not be in SUBDIRS when "
4591 . "AM_GNU_GETTEXT([external]) is used")
4592 if ($seen_gettext_external && ! $seen_gettext_intl
4593 && grep ($_ eq 'intl', @subdirs));
4596 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4599 # Handle footer elements.
4602 reject_rule ('.SUFFIXES',
4603 "use variable `SUFFIXES', not target `.SUFFIXES'");
4605 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4606 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4607 # anything else, by sticking it right after the default: target.
4608 $output_header .= ".SUFFIXES:\n";
4609 my $suffixes = var 'SUFFIXES';
4610 my @suffixes = Automake::Rule::suffixes;
4611 if (@suffixes || $suffixes)
4613 # Make sure SUFFIXES has unique elements. Sort them to ensure
4614 # the output remains consistent. However, $(SUFFIXES) is
4615 # always at the start of the list, unsorted. This is done
4616 # because make will choose rules depending on the ordering of
4617 # suffixes, and this lets the user have some control. Push
4618 # actual suffixes, and not $(SUFFIXES). Some versions of make
4619 # do not like variable substitutions on the .SUFFIXES line.
4620 my @user_suffixes = ($suffixes
4621 ? $suffixes->value_as_list_recursive : ());
4623 my %suffixes = map { $_ => 1 } @suffixes;
4624 delete @suffixes{@user_suffixes};
4626 $output_header .= (".SUFFIXES: "
4627 . join (' ', @user_suffixes, sort keys %suffixes)
4631 $output_trailer .= file_contents ('footer', new Automake::Location);
4635 # Generate `make install' rules.
4636 sub handle_install ()
4638 $output_rules .= &file_contents
4640 new Automake::Location,
4641 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4642 ? (" \$(BUILT_SOURCES)\n"
4643 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4645 'installdirs-local' => (user_phony_rule 'installdirs-local'
4646 ? ' installdirs-local' : ''),
4647 am__installdirs => variable_value ('am__installdirs') || '');
4651 # Deal with all and all-am.
4654 my ($makefile) = @_;
4658 # Put this at the beginning for the sake of non-GNU makes. This
4659 # is still wrong if these makes can run parallel jobs. But it is
4661 unshift (@all, basename ($makefile));
4663 foreach my $spec (@config_headers)
4665 my ($out, @ins) = split_config_file_spec ($spec);
4666 push (@all, basename ($out))
4667 if dirname ($out) eq $relative_dir;
4670 # Install `all' hooks.
4671 push (@all, "all-local")
4672 if user_phony_rule "all-local";
4674 &pretty_print_rule ("all-am:", "\t\t", @all);
4675 &depend ('.PHONY', 'all-am', 'all');
4680 my @local_headers = ();
4681 push @local_headers, '$(BUILT_SOURCES)'
4682 if var ('BUILT_SOURCES');
4683 foreach my $spec (@config_headers)
4685 my ($out, @ins) = split_config_file_spec ($spec);
4686 push @local_headers, basename ($out)
4687 if dirname ($out) eq $relative_dir;
4692 # We need to make sure config.h is built before we recurse.
4693 # We also want to make sure that built sources are built
4694 # before any ordinary `all' targets are run. We can't do this
4695 # by changing the order of dependencies to the "all" because
4696 # that breaks when using parallel makes. Instead we handle
4697 # things explicitly.
4698 $output_all .= ("all: @local_headers"
4700 . '$(MAKE) $(AM_MAKEFLAGS) '
4701 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4703 depend ('.MAKE', 'all');
4707 $output_all .= "all: " . (var ('SUBDIRS')
4708 ? 'all-recursive' : 'all-am') . "\n\n";
4713 # &do_check_merge_target ()
4714 # -------------------------
4715 # Handle check merge target specially.
4716 sub do_check_merge_target ()
4718 # Include user-defined local form of target.
4719 push @check_tests, 'check-local'
4720 if user_phony_rule 'check-local';
4722 # In --cygnus mode, check doesn't depend on all.
4723 if (option 'cygnus')
4725 # Just run the local check rules.
4726 pretty_print_rule ('check-am:', "\t\t", @check);
4730 # The check target must depend on the local equivalent of
4731 # `all', to ensure all the primary targets are built. Then it
4732 # must build the local check rules.
4733 $output_rules .= "check-am: all-am\n";
4736 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4738 depend ('.MAKE', 'check-am');
4743 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4745 depend ('.MAKE', 'check-am');
4748 depend '.PHONY', 'check', 'check-am';
4749 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4750 $output_rules .= ("check: "
4751 . (var ('BUILT_SOURCES')
4752 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4754 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4756 depend ('.MAKE', 'check')
4757 if var ('BUILT_SOURCES');
4760 # handle_clean ($MAKEFILE)
4761 # ------------------------
4762 # Handle all 'clean' targets.
4763 sub handle_clean ($)
4765 my ($makefile) = @_;
4767 # Clean the files listed in user variables if they exist.
4768 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4769 if var ('MOSTLYCLEANFILES');
4770 $clean_files{'$(CLEANFILES)'} = CLEAN
4771 if var ('CLEANFILES');
4772 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4773 if var ('DISTCLEANFILES');
4774 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4775 if var ('MAINTAINERCLEANFILES');
4777 # Built sources are automatically removed by maintainer-clean.
4778 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4779 if var ('BUILT_SOURCES');
4781 # Compute a list of "rm"s to run for each target.
4782 my %rms = (MOSTLY_CLEAN, [],
4785 MAINTAINER_CLEAN, []);
4787 foreach my $file (keys %clean_files)
4789 my $when = $clean_files{$file};
4790 prog_error 'invalid entry in %clean_files'
4791 unless exists $rms{$when};
4793 my $rm = "rm -f $file";
4794 # If file is a variable, make sure when don't call `rm -f' without args.
4795 $rm ="test -z \"$file\" || $rm"
4796 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4798 push @{$rms{$when}}, "\t-$rm\n";
4801 $output_rules .= &file_contents
4803 new Automake::Location,
4804 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4805 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4806 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4807 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4808 MAKEFILE => basename $makefile,
4813 # &target_cmp ($A, $B)
4814 # --------------------
4815 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4816 # other `.TARGETS' be last.
4819 return 0 if $a eq $b;
4821 my $a1 = substr ($a, 0, 1);
4822 my $b1 = substr ($b, 0, 1);
4825 return -1 if $b1 eq '.';
4826 return 1 if $a1 eq '.';
4832 # &handle_factored_dependencies ()
4833 # --------------------------------
4834 # Handle everything related to gathered targets.
4835 sub handle_factored_dependencies
4838 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4839 'uninstall-exec-local', 'uninstall-exec-hook',
4840 'uninstall-dvi-local',
4841 'uninstall-html-local',
4842 'uninstall-info-local',
4843 'uninstall-pdf-local',
4844 'uninstall-ps-local')
4848 reject_rule ($utarg, "use `$x', not `$utarg'");
4851 reject_rule ('install-local',
4852 "use `install-data-local' or `install-exec-local', "
4853 . "not `install-local'");
4855 reject_rule ('install-hook',
4856 "use `install-data-hook' or `install-exec-hook', "
4857 . "not `install-hook'");
4859 # Install the -local hooks.
4860 foreach (keys %dependencies)
4862 # Hooks are installed on the -am targets.
4864 depend ("$_-am", "$_-local")
4865 if user_phony_rule "$_-local";
4868 # Install the -hook hooks.
4869 # FIXME: Why not be as liberal as we are with -local hooks?
4870 foreach ('install-exec', 'install-data', 'uninstall')
4872 if (user_phony_rule "$_-hook")
4874 depend ('.MAKE', "$_-am");
4875 register_action("$_-am",
4876 ("\t\@\$(NORMAL_INSTALL)\n"
4877 . "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
4881 # All the required targets are phony.
4882 depend ('.PHONY', keys %required_targets);
4884 # Actually output gathered targets.
4885 foreach (sort target_cmp keys %dependencies)
4887 # If there is nothing about this guy, skip it.
4889 unless (@{$dependencies{$_}}
4891 || $required_targets{$_});
4893 # Define gathered targets in undefined conditions.
4894 # FIXME: Right now we must handle .PHONY as an exception,
4895 # because people write things like
4896 # .PHONY: myphonytarget
4897 # to append dependencies. This would not work if Automake
4898 # refrained from defining its own .PHONY target as it does
4899 # with other overridden targets.
4900 # Likewise for `.MAKE'.
4901 my @undefined_conds = (TRUE,);
4902 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4905 Automake::Rule::define ($_, 'internal',
4906 RULE_AUTOMAKE, TRUE, INTERNAL);
4908 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4909 foreach my $cond (@undefined_conds)
4911 my $condstr = $cond->subst_string;
4912 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4913 $output_rules .= $actions{$_} if defined $actions{$_};
4914 $output_rules .= "\n";
4920 # &handle_tests_dejagnu ()
4921 # ------------------------
4922 sub handle_tests_dejagnu
4924 push (@check_tests, 'check-DEJAGNU');
4925 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4928 # is_valid_test_extension ($EXT)
4929 # ------------------------------
4930 # Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
4932 sub is_valid_test_extension ($)
4936 if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
4938 if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
4942 # Handle TESTS variable and other checks.
4945 if (option 'dejagnu')
4947 &handle_tests_dejagnu;
4951 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4953 reject_var ($c, "`$c' defined but `dejagnu' not in "
4954 . "`AUTOMAKE_OPTIONS'");
4960 push (@check_tests, 'check-TESTS');
4961 $output_rules .= &file_contents ('check', new Automake::Location,
4962 COLOR => !! option 'color-tests',
4963 PARALLEL_TESTS => !! option 'parallel-tests');
4965 # Tests that are known programs should have $(EXEEXT) appended.
4966 # For matching purposes, we need to adjust XFAIL_TESTS as well.
4967 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4968 append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
4969 if (var ('XFAIL_TESTS'));
4971 if (option 'parallel-tests')
4973 define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
4976 my $handle_exeext = exists $configure_vars{'EXEEXT'};
4979 $at_exeext = subst ('EXEEXT');
4980 $suff = $at_exeext . ' ' . $suff;
4982 if (! var 'TEST_EXTENSIONS')
4984 define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
4986 my $var = var 'TEST_EXTENSIONS';
4987 # Currently, we are not able to deal with conditional contents
4988 # in TEST_EXTENSIONS.
4989 if ($var->has_conditional_contents)
4991 msg_var 'unsupported', $var,
4992 "`TEST_EXTENSIONS' cannot have conditional contents";
4994 my @test_suffixes = $var->value_as_list_recursive;
4995 if ((my @invalid_test_suffixes =
4996 grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
4998 error $var->rdef (TRUE)->location,
4999 "invalid test extensions: @invalid_test_suffixes";
5001 @test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
5004 unshift (@test_suffixes, $at_exeext)
5005 unless $test_suffixes[0] eq $at_exeext;
5007 unshift (@test_suffixes, '');
5009 transform_variable_recursively
5010 ('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
5012 my ($subvar, $val, $cond, $full_cond) = @_;
5015 if $val =~ /^\@.*\@$/;
5016 $obj =~ s/\$\(EXEEXT\)$//o;
5018 if ($val =~ /(\$\((top_)?srcdir\))\//o)
5020 msg ('error', $subvar->rdef ($cond)->location,
5021 "parallel-tests: using `$1' in TESTS is currently broken: `$val'");
5024 foreach my $test_suffix (@test_suffixes)
5027 if $test_suffix eq $at_exeext || $test_suffix eq '';
5028 return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
5029 if substr ($obj, - length ($test_suffix)) eq $test_suffix;
5032 my $compile = 'LOG_COMPILE';
5033 define_variable ($compile,
5034 '$(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)', INTERNAL);
5035 $output_rules .= file_contents ('check2', new Automake::Location,
5039 COMPILE =>'$(' . $compile . ')',
5041 am__EXEEXT => 'FALSE');
5048 my $last_suffix = $test_suffixes[$#test_suffixes];
5050 foreach my $test_suffix (@test_suffixes)
5052 if ($test_suffix eq $last_suffix)
5058 $cur = 'am__test_logs' . $nhelper;
5060 define_variable ($cur,
5061 '$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
5065 if ($test_suffix ne $at_exeext && $test_suffix ne '')
5067 (my $ext = $test_suffix) =~ s/^\.//;
5069 my $compile = $ext . '_LOG_COMPILE';
5070 define_variable ($compile,
5071 '$(' . $ext . '_LOG_COMPILER) $(AM_' . $ext . '_LOG_FLAGS)'
5072 . ' $(' . $ext . '_LOG_FLAGS)', INTERNAL);
5073 my $am_exeext = $handle_exeext ? 'am__EXEEXT' : 'FALSE';
5074 $output_rules .= file_contents ('check2', new Automake::Location,
5078 COMPILE => '$(' . $compile . ')',
5079 EXT => $test_suffix,
5080 am__EXEEXT => $am_exeext);
5084 define_variable ('TEST_LOGS_TMP', '$(TEST_LOGS:.log=.log-t)', INTERNAL);
5086 $clean_files{'$(TEST_LOGS_TMP)'} = MOSTLY_CLEAN;
5087 $clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
5088 $clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
5093 # Handle Emacs Lisp.
5094 sub handle_emacs_lisp
5096 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
5099 return if ! @elfiles;
5101 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
5102 map { $_->[1] } @elfiles);
5103 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
5104 '$(am__ELFILES:.el=.elc)');
5105 # This one can be overridden by users.
5106 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
5108 push @all, '$(ELCFILES)';
5110 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
5111 'EMACS', 'lispdir');
5112 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
5113 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
5119 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
5121 return if ! @pyfiles;
5123 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
5124 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
5125 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
5131 my @sourcelist = &am_install_var ('-candist',
5134 return if ! @sourcelist;
5136 my @prefixes = am_primary_prefixes ('JAVA', 1,
5140 my @java_sources = ();
5141 foreach my $prefix (@prefixes)
5143 (my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
5146 if $curs eq 'EXTRA';
5148 push @java_sources, '$(' . $prefix . '_JAVA' . ')';
5152 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
5153 unless $curs eq $dir;
5159 define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
5162 if ($dir eq 'check')
5164 push (@check, "class$dir.stamp");
5168 push (@all, "class$dir.stamp");
5173 # Handle some of the minor options.
5174 sub handle_minor_options
5176 if (option 'readme-alpha')
5178 if ($relative_dir eq '.')
5180 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
5182 msg ('error-gnits', $package_version_location,
5183 "version `$package_version' doesn't follow " .
5186 if (defined $1 && -f 'README-alpha')
5188 # This means we have an alpha release. See
5189 # GNITS_VERSION_PATTERN for details.
5190 push_dist_common ('README-alpha');
5196 ################################################################
5198 # ($OUTPUT, @INPUTS)
5199 # &split_config_file_spec ($SPEC)
5200 # -------------------------------
5201 # Decode the Autoconf syntax for config files (files, headers, links
5203 sub split_config_file_spec ($)
5206 my ($output, @inputs) = split (/:/, $spec);
5208 push @inputs, "$output.in"
5211 return ($output, @inputs);
5215 # locate_am (@POSSIBLE_SOURCES)
5216 # -----------------------------
5217 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
5218 # This functions returns the first *.in file for which a *.am exists.
5219 # It returns undef otherwise.
5224 foreach my $file (@rest)
5226 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
5237 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
5238 # ---------------------------------------------------
5239 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
5241 sub scan_autoconf_config_files ($$)
5243 my ($where, $config_files) = @_;
5245 # Look at potential Makefile.am's.
5246 foreach (split ' ', $config_files)
5248 # Must skip empty string for Perl 4.
5249 next if $_ eq "\\" || $_ eq '';
5251 # Handle $local:$input syntax.
5252 my ($local, @rest) = split (/:/);
5253 @rest = ("$local.in",) unless @rest;
5254 msg ('portability', $where,
5255 "Omit leading `./' from config file names such as `$local',"
5256 . "\nas not all make implementations treat `file' and `./file' equally.")
5257 if ($local =~ /^\.\//);
5258 my $input = locate_am @rest;
5261 # We have a file that automake should generate.
5262 $make_list{$input} = join (':', ($local, @rest));
5266 # We have a file that automake should cause to be
5267 # rebuilt, but shouldn't generate itself.
5268 push (@other_input_files, $_);
5270 $ac_config_files_location{$local} = $where;
5271 $ac_config_files_condition{$local} =
5272 new Automake::Condition (@cond_stack)
5278 # &scan_autoconf_traces ($FILENAME)
5279 # ---------------------------------
5280 sub scan_autoconf_traces ($)
5282 my ($filename) = @_;
5284 # Macros to trace, with their minimal number of arguments.
5286 # IMPORTANT: If you add a macro here, you should also add this macro
5287 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
5289 AC_CANONICAL_BUILD => 0,
5290 AC_CANONICAL_HOST => 0,
5291 AC_CANONICAL_TARGET => 0,
5292 AC_CONFIG_AUX_DIR => 1,
5293 AC_CONFIG_FILES => 1,
5294 AC_CONFIG_HEADERS => 1,
5295 AC_CONFIG_LIBOBJ_DIR => 1,
5296 AC_CONFIG_LINKS => 1,
5300 AC_REQUIRE_AUX_FILE => 1,
5301 AC_SUBST_TRACE => 1,
5302 AM_AUTOMAKE_VERSION => 1,
5303 AM_CONDITIONAL => 2,
5304 AM_ENABLE_MULTILIB => 0,
5305 AM_GNU_GETTEXT => 0,
5306 AM_GNU_GETTEXT_INTL_SUBDIR => 0,
5307 AM_INIT_AUTOMAKE => 0,
5308 AM_MAINTAINER_MODE => 0,
5309 AM_PROG_CC_C_O => 0,
5310 AM_SILENT_RULES => 0,
5311 _AM_SUBST_NOTMAKE => 1,
5314 _AM_COND_ENDIF => 1,
5315 LT_SUPPORTED_TAG => 1,
5316 _LT_AC_TAGCONFIG => 0,
5322 my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
5324 # Use a separator unlikely to be used, not `:', the default, which
5325 # has a precise meaning for AC_CONFIG_FILES and so on.
5326 $traces .= join (' ',
5327 map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
5330 my $tracefh = new Automake::XFile ("$traces $filename |");
5331 verb "reading $traces";
5336 while ($_ = $tracefh->getline)
5339 my ($here, $depth, @args) = split (/::/);
5340 $where = new Automake::Location $here;
5341 my $macro = $args[0];
5343 prog_error ("unrequested trace `$macro'")
5344 unless exists $traced{$macro};
5346 # Skip and diagnose malformed calls.
5347 if ($#args < $traced{$macro})
5349 msg ('syntax', $where, "not enough arguments for $macro");
5353 # Alphabetical ordering please.
5354 if ($macro eq 'AC_CANONICAL_BUILD')
5356 if ($seen_canonical <= AC_CANONICAL_BUILD)
5358 $seen_canonical = AC_CANONICAL_BUILD;
5359 $canonical_location = $where;
5362 elsif ($macro eq 'AC_CANONICAL_HOST')
5364 if ($seen_canonical <= AC_CANONICAL_HOST)
5366 $seen_canonical = AC_CANONICAL_HOST;
5367 $canonical_location = $where;
5370 elsif ($macro eq 'AC_CANONICAL_TARGET')
5372 $seen_canonical = AC_CANONICAL_TARGET;
5373 $canonical_location = $where;
5375 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
5377 if ($seen_init_automake)
5379 error ($where, "AC_CONFIG_AUX_DIR must be called before "
5380 . "AM_INIT_AUTOMAKE...", partial => 1);
5381 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
5383 $config_aux_dir = $args[1];
5384 $config_aux_dir_set_in_configure_ac = 1;
5385 $relative_dir = '.';
5386 check_directory ($config_aux_dir, $where);
5388 elsif ($macro eq 'AC_CONFIG_FILES')
5390 # Look at potential Makefile.am's.
5391 scan_autoconf_config_files ($where, $args[1]);
5393 elsif ($macro eq 'AC_CONFIG_HEADERS')
5395 foreach my $spec (split (' ', $args[1]))
5397 my ($dest, @src) = split (':', $spec);
5398 $ac_config_files_location{$dest} = $where;
5399 push @config_headers, $spec;
5402 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
5404 $config_libobj_dir = $args[1];
5405 $relative_dir = '.';
5406 check_directory ($config_libobj_dir, $where);
5408 elsif ($macro eq 'AC_CONFIG_LINKS')
5410 foreach my $spec (split (' ', $args[1]))
5412 my ($dest, $src) = split (':', $spec);
5413 $ac_config_files_location{$dest} = $where;
5414 push @config_links, $spec;
5417 elsif ($macro eq 'AC_FC_SRCEXT')
5419 my $suffix = $args[1];
5420 # These flags are used as %SOURCEFLAG% in depend2.am,
5421 # where the trailing space is important.
5422 $sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
5423 if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
5425 elsif ($macro eq 'AC_INIT')
5427 if (defined $args[2])
5429 $package_version = $args[2];
5430 $package_version_location = $where;
5433 elsif ($macro eq 'AC_LIBSOURCE')
5435 $libsources{$args[1]} = $here;
5437 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
5439 # Only remember the first time a file is required.
5440 $required_aux_file{$args[1]} = $where
5441 unless exists $required_aux_file{$args[1]};
5443 elsif ($macro eq 'AC_SUBST_TRACE')
5445 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
5446 # AC_SUBST(5), then too bad.
5447 $configure_vars{$args[1]} = $where
5448 if $args[1] =~ /^\w+$/;
5450 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
5453 "version mismatch. This is Automake $VERSION,\n" .
5454 "but the definition used by this AM_INIT_AUTOMAKE\n" .
5455 "comes from Automake $args[1]. You should recreate\n" .
5456 "aclocal.m4 with aclocal and run automake again.\n",
5457 # $? = 63 is used to indicate version mismatch to missing.
5459 if $VERSION ne $args[1];
5461 $seen_automake_version = 1;
5463 elsif ($macro eq 'AM_CONDITIONAL')
5465 $configure_cond{$args[1]} = $where;
5467 elsif ($macro eq 'AM_ENABLE_MULTILIB')
5469 $seen_multilib = $where;
5471 elsif ($macro eq 'AM_GNU_GETTEXT')
5473 $seen_gettext = $where;
5474 $ac_gettext_location = $where;
5475 $seen_gettext_external = grep ($_ eq 'external', @args);
5477 elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
5479 $seen_gettext_intl = $where;
5481 elsif ($macro eq 'AM_INIT_AUTOMAKE')
5483 $seen_init_automake = $where;
5484 if (defined $args[2])
5486 $package_version = $args[2];
5487 $package_version_location = $where;
5489 elsif (defined $args[1])
5492 if (process_global_option_list ($where,
5493 split (' ', $args[1])));
5496 elsif ($macro eq 'AM_MAINTAINER_MODE')
5498 $seen_maint_mode = $where;
5500 elsif ($macro eq 'AM_PROG_CC_C_O')
5502 $seen_cc_c_o = $where;
5504 elsif ($macro eq 'AM_SILENT_RULES')
5506 set_global_option ('silent-rules', $where);
5508 elsif ($macro eq '_AM_COND_IF')
5510 cond_stack_if ('', $args[1], $where);
5511 error ($where, "missing m4 quoting, macro depth $depth")
5514 elsif ($macro eq '_AM_COND_ELSE')
5516 cond_stack_else ('!', $args[1], $where);
5517 error ($where, "missing m4 quoting, macro depth $depth")
5520 elsif ($macro eq '_AM_COND_ENDIF')
5522 cond_stack_endif (undef, undef, $where);
5523 error ($where, "missing m4 quoting, macro depth $depth")
5526 elsif ($macro eq '_AM_SUBST_NOTMAKE')
5528 $ignored_configure_vars{$args[1]} = $where;
5530 elsif ($macro eq 'm4_include'
5531 || $macro eq 'm4_sinclude'
5532 || $macro eq 'sinclude')
5534 # Skip missing `sinclude'd files.
5535 next if $macro ne 'm4_include' && ! -f $args[1];
5537 # Some modified versions of Autoconf don't use
5538 # frozen files. Consequently it's possible that we see all
5539 # m4_include's performed during Autoconf's startup.
5540 # Obviously we don't want to distribute Autoconf's files
5541 # so we skip absolute filenames here.
5542 push @configure_deps, '$(top_srcdir)/' . $args[1]
5543 unless $here =~ m,^(?:\w:)?[\\/],;
5544 # Keep track of the greatest timestamp.
5547 my $mtime = mtime $args[1];
5548 $configure_deps_greatest_timestamp = $mtime
5549 if $mtime > $configure_deps_greatest_timestamp;
5552 elsif ($macro eq 'LT_SUPPORTED_TAG')
5554 $libtool_tags{$args[1]} = 1;
5555 $libtool_new_api = 1;
5557 elsif ($macro eq '_LT_AC_TAGCONFIG')
5559 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
5560 # We use it to detect whether tags are supported. Our
5561 # preferred interface is LT_SUPPORTED_TAG, but it was
5562 # introduced in Libtool 1.6.
5563 if (0 == keys %libtool_tags)
5565 # Hardcode the tags supported by Libtool 1.5.
5566 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5571 error ($where, "condition stack not properly closed")
5578 # &scan_autoconf_files ()
5579 # -----------------------
5580 # Check whether we use `configure.ac' or `configure.in'.
5581 # Scan it (and possibly `aclocal.m4') for interesting things.
5582 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5583 sub scan_autoconf_files ()
5585 # Reinitialize libsources here. This isn't really necessary,
5586 # since we currently assume there is only one configure.ac. But
5587 # that won't always be the case.
5590 # Keep track of the youngest configure dependency.
5591 $configure_deps_greatest_timestamp = mtime $configure_ac;
5592 if (-e 'aclocal.m4')
5594 my $mtime = mtime 'aclocal.m4';
5595 $configure_deps_greatest_timestamp = $mtime
5596 if $mtime > $configure_deps_greatest_timestamp;
5599 scan_autoconf_traces ($configure_ac);
5601 @configure_input_files = sort keys %make_list;
5602 # Set input and output files if not specified by user.
5605 @input_files = @configure_input_files;
5606 %output_files = %make_list;
5610 if (! $seen_init_automake)
5612 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5613 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5614 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5615 . "and that aclocal.m4 was recently regenerated "
5616 . "(using aclocal).");
5620 if (! $seen_automake_version)
5622 if (-f 'aclocal.m4')
5624 error ($seen_init_automake,
5625 "your implementation of AM_INIT_AUTOMAKE comes from " .
5626 "an\nold Automake version. You should recreate " .
5627 "aclocal.m4\nwith aclocal and run automake again.\n",
5628 # $? = 63 is used to indicate version mismatch to missing.
5633 error ($seen_init_automake,
5634 "no proper implementation of AM_INIT_AUTOMAKE was " .
5635 "found,\nprobably because aclocal.m4 is missing...\n" .
5636 "You should run aclocal to create this file, then\n" .
5637 "run automake again.\n");
5644 # Reorder @input_files so that the Makefile that distributes aux
5645 # files is processed last. This is important because each directory
5646 # can require auxiliary scripts and we should wait until they have
5647 # been installed before distributing them.
5649 # The Makefile.in that distribute the aux files is the one in
5650 # $config_aux_dir or the top-level Makefile.
5651 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5652 my @new_input_files = ();
5653 while (@input_files)
5655 my $in = pop @input_files;
5656 my @ins = split (/:/, $output_files{$in});
5657 if (dirname ($ins[0]) eq $auxdirdist)
5659 push @new_input_files, $in;
5660 $automake_will_process_aux_dir = 1;
5664 unshift @new_input_files, $in;
5667 @input_files = @new_input_files;
5669 # If neither the auxdir/Makefile nor the ./Makefile are generated
5670 # by Automake, we won't distribute the aux files anyway. Assume
5671 # the user know what (s)he does, and pretend we will distribute
5672 # them to disable the error in require_file_internal.
5673 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5675 # Look for some files we need. Always check for these. This
5676 # check must be done for every run, even those where we are only
5677 # looking at a subdir Makefile. We must set relative_dir for
5678 # maybe_push_required_file to work.
5679 # Sort the files for stable verbose output.
5680 $relative_dir = '.';
5681 foreach my $file (sort keys %required_aux_file)
5683 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5685 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5686 if -f $config_aux_dir . '/install.sh';
5688 # Preserve dist_common for later.
5689 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5693 ################################################################
5695 # Set up for Cygnus mode.
5698 my $cygnus = option 'cygnus';
5699 return unless $cygnus;
5701 set_strictness ('foreign');
5702 set_option ('no-installinfo', $cygnus);
5703 set_option ('no-dependencies', $cygnus);
5704 set_option ('no-dist', $cygnus);
5706 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5707 if !$seen_maint_mode;
5710 # Do any extra checking for GNU standards.
5711 sub check_gnu_standards
5713 if ($relative_dir eq '.')
5715 # In top level (or only) directory.
5716 require_file ("$am_file.am", GNU,
5717 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5719 # Accept one of these three licenses; default to COPYING.
5720 # Make sure we do not overwrite an existing license.
5722 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5730 require_file ("$am_file.am", GNU, 'COPYING')
5734 for my $opt ('no-installman', 'no-installinfo')
5736 msg ('error-gnu', option $opt,
5737 "option `$opt' disallowed by GNU standards")
5742 # Do any extra checking for GNITS standards.
5743 sub check_gnits_standards
5745 if ($relative_dir eq '.')
5747 # In top level (or only) directory.
5748 require_file ("$am_file.am", GNITS, 'THANKS');
5752 ################################################################
5754 # Functions to handle files of each language.
5756 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5757 # simple formula: Return value is LANG_SUBDIR if the resulting object
5758 # file should be in a subdir if the source file is, LANG_PROCESS if
5759 # file is to be dealt with, LANG_IGNORE otherwise.
5761 # Much of the actual processing is handled in
5762 # handle_single_transform. These functions exist so that
5763 # auxiliary information can be recorded for a later cleanup pass.
5764 # Note that the calls to these functions are computed, so don't bother
5765 # searching for their precise names in the source.
5767 # This is just a convenience function that can be used to determine
5768 # when a subdir object should be used.
5771 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5774 # Rewrite a single C source file.
5777 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5779 if (option 'ansi2knr' && $base =~ /_$/)
5781 # FIXME: include line number in error.
5782 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5785 my $r = LANG_PROCESS;
5786 if (option 'subdir-objects')
5789 if ($directory && $directory ne '.')
5791 $base = $directory . '/' . $base;
5793 # libtool is always able to put the object at the proper place,
5794 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5795 msg_var ('portability', $var,
5796 "compiling `$base.c' in subdir requires "
5797 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5798 uniq_scope => US_GLOBAL,
5799 uniq_part => 'AM_PROG_CC_C_O subdir')
5800 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5803 # In this case we already have the directory information, so
5804 # don't add it again.
5805 $de_ansi_files{$base} = '';
5809 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5815 && $have_per_exec_flags
5816 && ! option 'subdir-objects'
5817 && $nonansi_obj ne '.lo')
5819 msg_var ('portability',
5820 $var, "compiling `$base.c' with per-target flags requires "
5821 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5822 uniq_scope => US_GLOBAL,
5823 uniq_part => 'AM_PROG_CC_C_O per-target')
5829 # Rewrite a single C++ source file.
5830 sub lang_cxx_rewrite
5832 return &lang_sub_obj;
5835 # Rewrite a single header file.
5836 sub lang_header_rewrite
5838 # Header files are simply ignored.
5842 # Rewrite a single Vala source file.
5843 sub lang_vala_rewrite
5845 my ($directory, $base, $ext) = @_;
5847 (my $newext = $ext) =~ s/vala$/c/;
5848 return (LANG_SUBDIR, $newext);
5851 # Rewrite a single yacc file.
5852 sub lang_yacc_rewrite
5854 my ($directory, $base, $ext) = @_;
5856 my $r = &lang_sub_obj;
5857 (my $newext = $ext) =~ tr/y/c/;
5858 return ($r, $newext);
5861 # Rewrite a single yacc++ file.
5862 sub lang_yaccxx_rewrite
5864 my ($directory, $base, $ext) = @_;
5866 my $r = &lang_sub_obj;
5867 (my $newext = $ext) =~ tr/y/c/;
5868 return ($r, $newext);
5871 # Rewrite a single lex file.
5872 sub lang_lex_rewrite
5874 my ($directory, $base, $ext) = @_;
5876 my $r = &lang_sub_obj;
5877 (my $newext = $ext) =~ tr/l/c/;
5878 return ($r, $newext);
5881 # Rewrite a single lex++ file.
5882 sub lang_lexxx_rewrite
5884 my ($directory, $base, $ext) = @_;
5886 my $r = &lang_sub_obj;
5887 (my $newext = $ext) =~ tr/l/c/;
5888 return ($r, $newext);
5891 # Rewrite a single assembly file.
5892 sub lang_asm_rewrite
5894 return &lang_sub_obj;
5897 # Rewrite a single preprocessed assembly file.
5898 sub lang_cppasm_rewrite
5900 return &lang_sub_obj;
5903 # Rewrite a single Fortran 77 file.
5904 sub lang_f77_rewrite
5906 return &lang_sub_obj;
5909 # Rewrite a single Fortran file.
5912 return &lang_sub_obj;
5915 # Rewrite a single preprocessed Fortran file.
5916 sub lang_ppfc_rewrite
5918 return &lang_sub_obj;
5921 # Rewrite a single preprocessed Fortran 77 file.
5922 sub lang_ppf77_rewrite
5924 return &lang_sub_obj;
5927 # Rewrite a single ratfor file.
5928 sub lang_ratfor_rewrite
5930 return &lang_sub_obj;
5933 # Rewrite a single Objective C file.
5934 sub lang_objc_rewrite
5936 return &lang_sub_obj;
5939 # Rewrite a single Unified Parallel C file.
5940 sub lang_upc_rewrite
5942 return &lang_sub_obj;
5945 # Rewrite a single Java file.
5946 sub lang_java_rewrite
5951 # The lang_X_finish functions are called after all source file
5952 # processing is done. Each should handle defining rules for the
5953 # language, etc. A finish function is only called if a source file of
5954 # the appropriate type has been seen.
5958 # Push all libobjs files onto de_ansi_files. We actually only
5959 # push files which exist in the current directory, and which are
5960 # genuine source files.
5961 foreach my $file (keys %libsources)
5963 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5965 $de_ansi_files{$1} = ''
5969 if (option 'ansi2knr' && keys %de_ansi_files)
5971 # Make all _.c files depend on their corresponding .c files.
5973 foreach my $base (sort keys %de_ansi_files)
5975 # Each _.c file must depend on ansi2knr; otherwise it
5976 # might be used in a parallel build before it is built.
5977 # We need to support files in the srcdir and in the build
5978 # dir (because these files might be auto-generated. But
5979 # we can't use $< -- some makes only define $< during a
5981 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5982 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5983 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5984 . '`if test -f $(srcdir)/' . $ansfile
5985 . '; then echo $(srcdir)/' . $ansfile
5986 . '; else echo ' . $ansfile . '; fi` '
5987 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5988 . '| $(ANSI2KNR) > $@'
5989 # If ansi2knr fails then we shouldn't
5990 # create the _.c file
5991 . " || rm -f \$\@\n");
5992 push (@objects, $base . '_.$(OBJEXT)');
5993 push (@objects, $base . '_.lo')
5996 # Explicitly clean the _.c files if they are in a
5997 # subdirectory. (In the current directory they get erased
5998 # by a `rm -f *_.c' rule.)
5999 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
6000 if dirname ($base) ne '.';
6003 # Make all _.o (and _.lo) files depend on ansi2knr.
6004 # Use a sneaky little hack to make it print nicely.
6005 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
6009 sub lang_vala_finish_target ($$)
6011 my ($self, $name) = @_;
6013 my $derived = canonicalize ($name);
6014 my $varname = $derived . '_SOURCES';
6015 my $var = var ($varname);
6019 foreach my $file ($var->value_as_list_recursive)
6021 $output_rules .= "\$(srcdir)/$file: \$(srcdir)/${derived}_vala.stamp\n"
6022 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6023 . "\t\@if test -f \$@; then :; else \\\n"
6024 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6026 if $file =~ s/(.*)\.vala$/$1.c/;
6030 # Add rebuild rules for generated header and vapi files
6031 my $flags = var ($derived . '_VALAFLAGS');
6035 foreach my $flag ($flags->value_as_list_recursive)
6037 if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
6038 '--vapi', '--internal-vapi', '--gir')))
6040 my $headerfile = $flag;
6041 $output_rules .= "\$(srcdir)/$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
6042 . "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
6043 . "\t\@if test -f \$@; then :; else \\\n"
6044 . "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
6047 # valac is not used when building from dist tarballs
6048 # distribute the generated files
6049 push_dist_common ($headerfile);
6050 $clean_files{$headerfile} = MAINTAINER_CLEAN;
6056 my $compile = $self->compile;
6058 # Rewrite each occurrence of `AM_VALAFLAGS' in the compile
6059 # rule into `${derived}_VALAFLAGS' if it exists.
6060 my $val = "${derived}_VALAFLAGS";
6061 $compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
6064 # VALAFLAGS is a user variable (per GNU Standards),
6065 # it should not be overridden in the Makefile...
6066 check_user_variables ['VALAFLAGS'];
6068 my $dirname = dirname ($name);
6070 # Only generate C code, do not run C compiler
6073 my $verbose = verbose_flag ('VALAC');
6074 my $silent = silent_flag ();
6077 "\$(srcdir)/${derived}_vala.stamp: \$(${derived}_SOURCES)\n".
6078 "\t${verbose}\$(am__cd) \$(srcdir) && ${compile} \$(${derived}_SOURCES)\n".
6079 "\t${silent}touch \$@\n";
6081 push_dist_common ("${derived}_vala.stamp");
6083 $clean_files{"${derived}_vala.stamp"} = MAINTAINER_CLEAN;
6086 # Add output rules to invoke valac and create stamp file as a witness
6087 # to handle multiple outputs. This function is called after all source
6088 # file processing is done.
6089 sub lang_vala_finish
6093 foreach my $prog (keys %known_programs)
6095 lang_vala_finish_target ($self, $prog);
6098 while (my ($name) = each %known_libraries)
6100 lang_vala_finish_target ($self, $name);
6104 # The built .c files should be cleaned only on maintainer-clean
6105 # as the .c files are distributed. This function is called for each
6106 # .vala source file.
6107 sub lang_vala_target_hook
6109 my ($self, $aggregate, $output, $input, %transform) = @_;
6111 $clean_files{$output} = MAINTAINER_CLEAN;
6114 # This is a yacc helper which is called whenever we have decided to
6115 # compile a yacc file.
6116 sub lang_yacc_target_hook
6118 my ($self, $aggregate, $output, $input, %transform) = @_;
6120 my $flag = $aggregate . "_YFLAGS";
6121 my $flagvar = var $flag;
6122 my $YFLAGSvar = var 'YFLAGS';
6123 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
6124 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
6126 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
6127 my $header = $output_base . '.h';
6129 # Found a `-d' that applies to the compilation of this file.
6130 # Add a dependency for the generated header file, and arrange
6131 # for that file to be included in the distribution.
6132 foreach my $cond (Automake::Rule::define (${header}, 'internal',
6133 RULE_AUTOMAKE, TRUE,
6136 my $condstr = $cond->subst_string;
6138 "$condstr${header}: $output\n"
6139 # Recover from removal of $header
6140 . "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
6141 . "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
6143 # Distribute the generated file, unless its .y source was
6144 # listed in a nodist_ variable. (&handle_source_transform
6145 # will set DIST_SOURCE.)
6146 &push_dist_common ($header)
6147 if $transform{'DIST_SOURCE'};
6149 # If the files are built in the build directory, then we want
6150 # to remove them with `make clean'. If they are in srcdir
6151 # they shouldn't be touched. However, we can't determine this
6152 # statically, and the GNU rules say that yacc/lex output files
6153 # should be removed by maintainer-clean. So that's what we
6155 $clean_files{$header} = MAINTAINER_CLEAN;
6157 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
6158 # See the comment above for $HEADER.
6159 $clean_files{$output} = MAINTAINER_CLEAN;
6162 # This is a lex helper which is called whenever we have decided to
6163 # compile a lex file.
6164 sub lang_lex_target_hook
6166 my ($self, $aggregate, $output, $input) = @_;
6167 # If the files are built in the build directory, then we want to
6168 # remove them with `make clean'. If they are in srcdir they
6169 # shouldn't be touched. However, we can't determine this
6170 # statically, and the GNU rules say that yacc/lex output files
6171 # should be removed by maintainer-clean. So that's what we do.
6172 $clean_files{$output} = MAINTAINER_CLEAN;
6175 # This is a helper for both lex and yacc.
6176 sub yacc_lex_finish_helper
6178 return if defined $language_scratch{'lex-yacc-done'};
6179 $language_scratch{'lex-yacc-done'} = 1;
6181 # FIXME: for now, no line number.
6182 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
6183 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
6186 sub lang_yacc_finish
6188 return if defined $language_scratch{'yacc-done'};
6189 $language_scratch{'yacc-done'} = 1;
6191 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
6193 yacc_lex_finish_helper;
6199 return if defined $language_scratch{'lex-done'};
6200 $language_scratch{'lex-done'} = 1;
6202 yacc_lex_finish_helper;
6206 # Given a hash table of linker names, pick the name that has the most
6207 # precedence. This is lame, but something has to have global
6208 # knowledge in order to eliminate the conflict. Add more linkers as
6214 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
6216 return $l if defined $linkers{$l};
6221 # Called to indicate that an extension was used.
6225 if (! defined $extension_seen{$ext})
6227 $extension_seen{$ext} = 1;
6231 ++$extension_seen{$ext};
6235 # Return the number of files seen for a given language. Knows about
6236 # special cases we care about. FIXME: this is hideous. We need
6237 # something that involves real language objects. For instance yacc
6238 # and yaccxx could both derive from a common yacc class which would
6239 # know about the strange ylwrap requirement. (Or better yet we could
6240 # just not support legacy yacc!)
6241 sub count_files_for_language
6246 if ($name eq 'yacc' || $name eq 'yaccxx')
6248 @names = ('yacc', 'yaccxx');
6250 elsif ($name eq 'lex' || $name eq 'lexxx')
6252 @names = ('lex', 'lexxx');
6260 foreach $name (@names)
6262 my $lang = $languages{$name};
6263 foreach my $ext (@{$lang->extensions})
6265 $r += $extension_seen{$ext}
6266 if defined $extension_seen{$ext};
6273 # Called to ask whether source files have been seen . If HEADERS is 1,
6274 # headers can be included.
6279 # count all the sources
6281 foreach my $val (values %extension_seen)
6288 $count -= count_files_for_language ('header');
6295 # register_language (%ATTRIBUTE)
6296 # ------------------------------
6297 # Register a single language.
6298 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
6299 sub register_language (%)
6305 unless defined $option{'ansi'};
6306 $option{'autodep'} = 'no'
6307 unless defined $option{'autodep'};
6308 $option{'linker'} = ''
6309 unless defined $option{'linker'};
6310 $option{'flags'} = []
6311 unless defined $option{'flags'};
6312 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
6313 unless defined $option{'output_extensions'};
6314 $option{'nodist_specific'} = 0
6315 unless defined $option{'nodist_specific'};
6317 my $lang = new Language (%option);
6320 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
6321 $languages{$lang->name} = $lang;
6322 my $link = $lang->linker;
6325 if (exists $link_languages{$link})
6327 prog_error ("`$link' has different definitions in "
6328 . $lang->name . " and " . $link_languages{$link}->name)
6329 if $lang->link ne $link_languages{$link}->link;
6333 $link_languages{$link} = $lang;
6337 # Update the pattern of known extensions.
6338 accept_extensions (@{$lang->extensions});
6340 # Upate the $suffix_rule map.
6341 foreach my $suffix (@{$lang->extensions})
6343 foreach my $dest (&{$lang->output_extensions} ($suffix))
6345 register_suffix_rule (INTERNAL, $suffix, $dest);
6350 # derive_suffix ($EXT, $OBJ)
6351 # --------------------------
6352 # This function is used to find a path from a user-specified suffix $EXT
6353 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
6354 sub derive_suffix ($$)
6356 my ($source_ext, $obj) = @_;
6358 while (! $extension_map{$source_ext}
6359 && $source_ext ne $obj
6360 && exists $suffix_rules->{$source_ext}
6361 && exists $suffix_rules->{$source_ext}{$obj})
6363 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
6370 ################################################################
6372 # Pretty-print something and append to output_rules.
6373 sub pretty_print_rule
6375 $output_rules .= &makefile_wrap (@_);
6379 ################################################################
6382 ## -------------------------------- ##
6383 ## Handling the conditional stack. ##
6384 ## -------------------------------- ##
6388 # make_conditional_string ($NEGATE, $COND)
6389 # ----------------------------------------
6390 sub make_conditional_string ($$)
6392 my ($negate, $cond) = @_;
6393 $cond = "${cond}_TRUE"
6394 unless $cond =~ /^TRUE|FALSE$/;
6395 $cond = Automake::Condition::conditional_negate ($cond)
6401 my %_am_macro_for_cond =
6403 AMDEP => "one of the compiler tests\n"
6404 . " AC_PROG_CC, AC_PROG_CXX, AC_PROG_CXX, AC_PROG_OBJC,\n"
6405 . " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
6406 am__fastdepCC => 'AC_PROG_CC',
6407 am__fastdepCCAS => 'AM_PROG_AS',
6408 am__fastdepCXX => 'AC_PROG_CXX',
6409 am__fastdepGCJ => 'AM_PROG_GCJ',
6410 am__fastdepOBJC => 'AC_PROG_OBJC',
6411 am__fastdepUPC => 'AM_PROG_UPC'
6415 # cond_stack_if ($NEGATE, $COND, $WHERE)
6416 # --------------------------------------
6417 sub cond_stack_if ($$$)
6419 my ($negate, $cond, $where) = @_;
6421 if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
6423 my $text = "$cond does not appear in AM_CONDITIONAL";
6424 my $scope = US_LOCAL;
6425 if (exists $_am_macro_for_cond{$cond})
6427 my $mac = $_am_macro_for_cond{$cond};
6428 $text .= "\n The usual way to define `$cond' is to add ";
6429 $text .= ($mac =~ / /) ? $mac : "`$mac'";
6430 $text .= "\n to `$configure_ac' and run `aclocal' and `autoconf' again.";
6431 # These warnings appear in Automake files (depend2.am),
6432 # so there is no need to display them more than once:
6435 error $where, $text, uniq_scope => $scope;
6438 push (@cond_stack, make_conditional_string ($negate, $cond));
6440 return new Automake::Condition (@cond_stack);
6445 # cond_stack_else ($NEGATE, $COND, $WHERE)
6446 # ----------------------------------------
6447 sub cond_stack_else ($$$)
6449 my ($negate, $cond, $where) = @_;
6453 error $where, "else without if";
6457 $cond_stack[$#cond_stack] =
6458 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
6460 # If $COND is given, check against it.
6463 $cond = make_conditional_string ($negate, $cond);
6465 error ($where, "else reminder ($negate$cond) incompatible with "
6466 . "current conditional: $cond_stack[$#cond_stack]")
6467 if $cond_stack[$#cond_stack] ne $cond;
6470 return new Automake::Condition (@cond_stack);
6475 # cond_stack_endif ($NEGATE, $COND, $WHERE)
6476 # -----------------------------------------
6477 sub cond_stack_endif ($$$)
6479 my ($negate, $cond, $where) = @_;
6484 error $where, "endif without if";
6488 # If $COND is given, check against it.
6491 $cond = make_conditional_string ($negate, $cond);
6493 error ($where, "endif reminder ($negate$cond) incompatible with "
6494 . "current conditional: $cond_stack[$#cond_stack]")
6495 if $cond_stack[$#cond_stack] ne $cond;
6500 return new Automake::Condition (@cond_stack);
6507 ## ------------------------ ##
6508 ## Handling the variables. ##
6509 ## ------------------------ ##
6512 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
6513 # -----------------------------------------------------
6514 # Like define_variable, but the value is a list, and the variable may
6515 # be defined conditionally. The second argument is the condition
6516 # under which the value should be defined; this should be the empty
6517 # string to define the variable unconditionally. The third argument
6518 # is a list holding the values to use for the variable. The value is
6519 # pretty printed in the output file.
6520 sub define_pretty_variable ($$$@)
6522 my ($var, $cond, $where, @value) = @_;
6524 if (! vardef ($var, $cond))
6526 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
6527 '', $where, VAR_PRETTY);
6528 rvar ($var)->rdef ($cond)->set_seen;
6533 # define_variable ($VAR, $VALUE, $WHERE)
6534 # --------------------------------------
6535 # Define a new Automake Makefile variable VAR to VALUE, but only if
6536 # not already defined.
6537 sub define_variable ($$$)
6539 my ($var, $value, $where) = @_;
6540 define_pretty_variable ($var, TRUE, $where, $value);
6544 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
6545 # ------------------------------------------------------------
6546 # Define the $VAR which content is the list of file names composed of
6547 # a @BASENAME and the $EXTENSION.
6548 sub define_files_variable ($\@$$)
6550 my ($var, $basename, $extension, $where) = @_;
6551 define_variable ($var,
6552 join (' ', map { "$_.$extension" } @$basename),
6557 # Like define_variable, but define a variable to be the configure
6558 # substitution by the same name.
6559 sub define_configure_variable ($)
6563 my $pretty = VAR_ASIS;
6564 my $owner = VAR_CONFIGURE;
6566 # Some variables we do not want to output. For instance it
6567 # would be a bad idea to output `U = @U@` when `@U@` can be
6568 # substituted as `\`.
6569 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
6571 # ANSI2KNR is a variable that Automake wants to redefine, so
6572 # it must be owned by Automake. (It is also used as a proof
6573 # that AM_C_PROTOTYPES has been run, that's why we do not simply
6574 # omit the AC_SUBST.)
6575 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
6577 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
6578 '', $configure_vars{$var}, $pretty);
6582 # define_compiler_variable ($LANG)
6583 # --------------------------------
6584 # Define a compiler variable. We also handle defining the `LT'
6585 # version of the command when using libtool.
6586 sub define_compiler_variable ($)
6590 my ($var, $value) = ($lang->compiler, $lang->compile);
6591 my $libtool_tag = '';
6592 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6593 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6594 &define_variable ($var, $value, INTERNAL);
6595 if (var ('LIBTOOL'))
6597 my $verbose = define_verbose_libtool ();
6598 &define_variable ("LT$var",
6599 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6600 . "\$(LIBTOOLFLAGS) --mode=compile $value",
6603 define_verbose_tagvar ($lang->ccer || 'GEN');
6607 # define_linker_variable ($LANG)
6608 # ------------------------------
6609 # Define linker variables.
6610 sub define_linker_variable ($)
6614 my $libtool_tag = '';
6615 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6616 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6618 &define_variable ($lang->lder, $lang->ld, INTERNAL);
6619 # CCLINK = $(CCLD) blah blah...
6621 if (var ('LIBTOOL'))
6623 my $verbose = define_verbose_libtool ();
6624 $link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
6625 . "\$(LIBTOOLFLAGS) --mode=link ";
6627 &define_variable ($lang->linker, $link . $lang->link, INTERNAL);
6628 &define_variable ($lang->compiler, $lang);
6629 &define_verbose_tagvar ($lang->lder || 'GEN');
6632 sub define_per_target_linker_variable ($$)
6634 my ($linker, $target) = @_;
6636 # If the user wrote a custom link command, we don't define ours.
6637 return "${target}_LINK"
6638 if set_seen "${target}_LINK";
6640 my $xlink = $linker ? $linker : 'LINK';
6642 my $lang = $link_languages{$xlink};
6643 prog_error "Unknown language for linker variable `$xlink'"
6646 my $link_command = $lang->link;
6649 my $libtool_tag = '';
6650 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
6651 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
6653 my $verbose = define_verbose_libtool ();
6655 "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
6656 . "--mode=link " . $link_command;
6659 # Rewrite each occurrence of `AM_$flag' in the link
6660 # command into `${derived}_$flag' if it exists.
6661 my $orig_command = $link_command;
6662 my @flags = (@{$lang->flags}, 'LDFLAGS');
6663 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
6664 for my $flag (@flags)
6666 my $val = "${target}_$flag";
6667 $link_command =~ s/\(AM_$flag\)/\($val\)/
6671 # If the computed command is the same as the generic command, use
6672 # the command linker variable.
6673 return ($lang->linker, $lang->lder)
6674 if $link_command eq $orig_command;
6676 &define_variable ("${target}_LINK", $link_command, INTERNAL);
6677 return ("${target}_LINK", $lang->lder);
6680 ################################################################
6682 # &check_trailing_slash ($WHERE, $LINE)
6683 # -------------------------------------
6684 # Return 1 iff $LINE ends with a slash.
6685 # Might modify $LINE.
6686 sub check_trailing_slash ($\$)
6688 my ($where, $line) = @_;
6690 # Ignore `##' lines.
6691 return 0 if $$line =~ /$IGNORE_PATTERN/o;
6693 # Catch and fix a common error.
6694 msg "syntax", $where, "whitespace following trailing backslash"
6695 if $$line =~ s/\\\s+\n$/\\\n/;
6697 return $$line =~ /\\$/;
6701 # &read_am_file ($AMFILE, $WHERE)
6702 # -------------------------------
6703 # Read Makefile.am and set up %contents. Simultaneously copy lines
6704 # from Makefile.am into $output_trailer, or define variables as
6705 # appropriate. NOTE we put rules in the trailer section. We want
6706 # user rules to come after our generated stuff.
6707 sub read_am_file ($$)
6709 my ($amfile, $where) = @_;
6711 my $am_file = new Automake::XFile ("< $amfile");
6712 verb "reading $amfile";
6714 # Keep track of the youngest output dependency.
6715 my $mtime = mtime $amfile;
6716 $output_deps_greatest_timestamp = $mtime
6717 if $mtime > $output_deps_greatest_timestamp;
6723 my $var_look = VAR_ASIS;
6725 use constant IN_VAR_DEF => 0;
6726 use constant IN_RULE_DEF => 1;
6727 use constant IN_COMMENT => 2;
6728 my $prev_state = IN_RULE_DEF;
6730 while ($_ = $am_file->getline)
6732 $where->set ("$amfile:$.");
6733 if (/$IGNORE_PATTERN/o)
6735 # Merely delete comments beginning with two hashes.
6737 elsif (/$WHITE_PATTERN/o)
6739 error $where, "blank line following trailing backslash"
6741 # Stick a single white line before the incoming macro or rule.
6744 # Flush all comments seen so far.
6747 $output_vars .= $comment;
6751 elsif (/$COMMENT_PATTERN/o)
6753 # Stick comments before the incoming macro or rule. Make
6754 # sure a blank line precedes the first block of comments.
6755 $spacing = "\n" unless $blank;
6757 $comment .= $spacing . $_;
6759 $prev_state = IN_COMMENT;
6765 $saw_bk = check_trailing_slash ($where, $_);
6768 # We save the conditional stack on entry, and then check to make
6769 # sure it is the same on exit. This lets us conditionally include
6771 my @saved_cond_stack = @cond_stack;
6772 my $cond = new Automake::Condition (@cond_stack);
6774 my $last_var_name = '';
6775 my $last_var_type = '';
6776 my $last_var_value = '';
6778 # FIXME: shouldn't use $_ in this loop; it is too big.
6781 $where->set ("$amfile:$.");
6783 # Make sure the line is \n-terminated.
6787 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6788 # used by users. @MAINT@ is an anachronism now.
6789 $_ =~ s/\@MAINT\@//g
6790 unless $seen_maint_mode;
6792 my $new_saw_bk = check_trailing_slash ($where, $_);
6794 if (/$IGNORE_PATTERN/o)
6796 # Merely delete comments beginning with two hashes.
6798 # Keep any backslash from the previous line.
6799 $new_saw_bk = $saw_bk;
6801 elsif (/$WHITE_PATTERN/o)
6803 # Stick a single white line before the incoming macro or rule.
6805 error $where, "blank line following trailing backslash"
6808 elsif (/$COMMENT_PATTERN/o)
6810 error $where, "comment following trailing backslash"
6811 if $saw_bk && $prev_state != IN_COMMENT;
6813 # Stick comments before the incoming macro or rule.
6814 $comment .= $spacing . $_;
6816 $prev_state = IN_COMMENT;
6820 if ($prev_state == IN_RULE_DEF)
6822 my $cond = new Automake::Condition @cond_stack;
6823 $output_trailer .= $cond->subst_string;
6824 $output_trailer .= $_;
6826 elsif ($prev_state == IN_COMMENT)
6828 # If the line doesn't start with a `#', add it.
6829 # We do this because a continued comment like
6833 # is not portable. BSD make doesn't honor
6834 # escaped newlines in comments.
6836 $comment .= $spacing . $_;
6838 else # $prev_state == IN_VAR_DEF
6840 $last_var_value .= ' '
6841 unless $last_var_value =~ /\s$/;
6842 $last_var_value .= $_;
6846 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6847 $last_var_type, $cond,
6848 $last_var_value, $comment,
6849 $last_where, VAR_ASIS)
6851 $comment = $spacing = '';
6856 elsif (/$IF_PATTERN/o)
6858 $cond = cond_stack_if ($1, $2, $where);
6860 elsif (/$ELSE_PATTERN/o)
6862 $cond = cond_stack_else ($1, $2, $where);
6864 elsif (/$ENDIF_PATTERN/o)
6866 $cond = cond_stack_endif ($1, $2, $where);
6869 elsif (/$RULE_PATTERN/o)
6872 $prev_state = IN_RULE_DEF;
6874 # For now we have to output all definitions of user rules
6875 # and can't diagnose duplicates (see the comment in
6876 # Automake::Rule::define). So we go on and ignore the return value.
6877 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6879 check_variable_expansions ($_, $where);
6881 $output_trailer .= $comment . $spacing;
6882 my $cond = new Automake::Condition @cond_stack;
6883 $output_trailer .= $cond->subst_string;
6884 $output_trailer .= $_;
6885 $comment = $spacing = '';
6887 elsif (/$ASSIGNMENT_PATTERN/o)
6889 # Found a macro definition.
6890 $prev_state = IN_VAR_DEF;
6891 $last_var_name = $1;
6892 $last_var_type = $2;
6893 $last_var_value = $3;
6894 $last_where = $where->clone;
6895 if ($3 ne '' && substr ($3, -1) eq "\\")
6897 # We preserve the `\' because otherwise the long lines
6898 # that are generated will be truncated by broken
6900 $last_var_value = $3 . "\n";
6902 # Normally we try to output variable definitions in the
6903 # same format they were input. However, POSIX compliant
6904 # systems are not required to support lines longer than
6905 # 2048 bytes (most notably, some sed implementation are
6906 # limited to 4000 bytes, and sed is used by config.status
6907 # to rewrite Makefile.in into Makefile). Moreover nobody
6908 # would really write such long lines by hand since it is
6909 # hardly maintainable. So if a line is longer that 1000
6910 # bytes (an arbitrary limit), assume it has been
6911 # automatically generated by some tools, and flatten the
6912 # variable definition. Otherwise, keep the variable as it
6914 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6918 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6919 $last_var_type, $cond,
6920 $last_var_value, $comment,
6921 $last_where, $var_look)
6923 $comment = $spacing = '';
6924 $var_look = VAR_ASIS;
6927 elsif (/$INCLUDE_PATTERN/o)
6931 if ($path =~ s/^\$\(top_srcdir\)\///)
6933 push (@include_stack, "\$\(top_srcdir\)/$path");
6934 # Distribute any included file.
6936 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6937 # otherwise OSF make will implicitly copy the included
6938 # file in the build tree during `make distdir' to satisfy
6940 # (subdircond2.test and subdircond3.test will fail.)
6941 push_dist_common ("\$\(top_srcdir\)/$path");
6945 $path =~ s/\$\(srcdir\)\///;
6946 push (@include_stack, "\$\(srcdir\)/$path");
6947 # Always use the $(srcdir) prefix in DIST_COMMON,
6948 # otherwise OSF make will implicitly copy the included
6949 # file in the build tree during `make distdir' to satisfy
6951 # (subdircond2.test and subdircond3.test will fail.)
6952 push_dist_common ("\$\(srcdir\)/$path");
6953 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6955 $where->push_context ("`$path' included from here");
6956 &read_am_file ($path, $where);
6957 $where->pop_context;
6961 # This isn't an error; it is probably a continued rule.
6962 # In fact, this is what we assume.
6963 $prev_state = IN_RULE_DEF;
6964 check_variable_expansions ($_, $where);
6965 $output_trailer .= $comment . $spacing;
6966 my $cond = new Automake::Condition @cond_stack;
6967 $output_trailer .= $cond->subst_string;
6968 $output_trailer .= $_;
6969 $comment = $spacing = '';
6970 error $where, "`#' comment at start of rule is unportable"
6971 if $_ =~ /^\t\s*\#/;
6974 $saw_bk = $new_saw_bk;
6975 $_ = $am_file->getline;
6978 $output_trailer .= $comment;
6980 error ($where, "trailing backslash on last line")
6983 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6984 : "too many conditionals closed in include file"))
6985 if "@saved_cond_stack" ne "@cond_stack";
6989 # define_standard_variables ()
6990 # ----------------------------
6991 # A helper for read_main_am_file which initializes configure variables
6992 # and variables from header-vars.am.
6993 sub define_standard_variables
6995 my $saved_output_vars = $output_vars;
6996 my ($comments, undef, $rules) =
6997 file_contents_internal (1, "$libdir/am/header-vars.am",
6998 new Automake::Location);
7000 foreach my $var (sort keys %configure_vars)
7002 &define_configure_variable ($var);
7005 $output_vars .= $comments . $rules;
7008 # Read main am file.
7009 sub read_main_am_file
7013 # This supports the strange variable tricks we are about to play.
7014 prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
7015 if (scalar (variables) > 0);
7017 # Generate copyright header for generated Makefile.in.
7018 # We do discard the output of predefined variables, handled below.
7019 $output_vars = ("# $in_file_name generated by automake "
7020 . $VERSION . " from $am_file_name.\n");
7021 $output_vars .= '# ' . subst ('configure_input') . "\n";
7022 $output_vars .= $gen_copyright;
7024 # We want to predefine as many variables as possible. This lets
7025 # the user set them with `+=' in Makefile.am.
7026 &define_standard_variables;
7028 # Read user file, which might override some of our values.
7029 &read_am_file ($amfile, new Automake::Location);
7034 ################################################################
7037 # &flatten ($STRING)
7038 # ------------------
7039 # Flatten the $STRING and return the result.
7053 # transform_token ($TOKEN, \%PAIRS, $KEY)
7054 # =======================================
7055 # Return the value associated to $KEY in %PAIRS, as used on $TOKEN
7056 # (which should be ?KEY? or any of the special %% requests)..
7057 sub transform_token ($$$)
7059 my ($token, $transform, $key) = @_;
7060 my $res = $transform->{$key};
7061 prog_error "Unknown key `$key' in `$token'" unless defined $res;
7066 # transform ($TOKEN, \%PAIRS)
7067 # ===========================
7068 # If ($TOKEN, $VAL) is in %PAIRS:
7069 # - replaces %KEY% with $VAL,
7070 # - enables/disables ?KEY? and ?!KEY?,
7071 # - replaces %?KEY% with TRUE or FALSE.
7072 # - replaces %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE% with
7073 # IFTRUE / IFFALSE, as appropriate.
7076 my ($token, $transform) = @_;
7079 # Must be before the following pattern to exclude the case
7080 # when there is neither IFTRUE nor IFFALSE.
7081 if ($token =~ /^%([\w\-]+)%$/)
7083 return transform_token ($token, $transform, $1);
7085 # %KEY?IFTRUE%, %KEY:IFFALSE%, and %KEY?IFTRUE:IFFALSE%.
7086 elsif ($token =~ /^%([\w\-]+)(?:\?([^?:%]+))?(?::([^?:%]+))?%$/)
7088 return transform_token ($token, $transform, $1) ? ($2 || '') : ($3 || '');
7091 elsif ($token =~ /^%\?([\w\-]+)%$/)
7093 return transform_token ($token, $transform, $1) ? 'TRUE' : 'FALSE';
7096 elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
7098 my $neg = ($1 eq '!') ? 1 : 0;
7099 my $val = transform_token ($token, $transform, $2);
7100 return (!!$val == $neg) ? '##%' : '';
7104 prog_error "Unknown request format: $token";
7110 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
7111 # ------------------------------------------
7112 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
7114 sub make_paragraphs ($%)
7116 my ($file, %transform) = @_;
7118 # Complete %transform with global options.
7119 # Note that %transform goes last, so it overrides global options.
7120 %transform = ('CYGNUS' => !! option 'cygnus',
7122 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
7124 'XZ' => !! option 'dist-xz',
7125 'LZMA' => !! option 'dist-lzma',
7126 'LZIP' => !! option 'dist-lzip',
7127 'BZIP2' => !! option 'dist-bzip2',
7128 'COMPRESS' => !! option 'dist-tarZ',
7129 'GZIP' => ! option 'no-dist-gzip',
7130 'SHAR' => !! option 'dist-shar',
7131 'ZIP' => !! option 'dist-zip',
7133 'INSTALL-INFO' => ! option 'no-installinfo',
7134 'INSTALL-MAN' => ! option 'no-installman',
7135 'HAVE-MANS' => !! var ('MANS'),
7136 'CK-NEWS' => !! option 'check-news',
7138 'SUBDIRS' => !! var ('SUBDIRS'),
7139 'TOPDIR_P' => $relative_dir eq '.',
7141 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
7142 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
7143 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
7145 'LIBTOOL' => !! var ('LIBTOOL'),
7147 'FIRST' => ! $transformed_files{$file},
7150 $transformed_files{$file} = 1;
7151 $_ = $am_file_cache{$file};
7155 verb "reading $file";
7156 # Swallow the whole file.
7157 my $fc_file = new Automake::XFile "< $file";
7158 my $saved_dollar_slash = $/;
7160 $_ = $fc_file->getline;
7161 $/ = $saved_dollar_slash;
7164 # Remove ##-comments.
7165 # Besides we don't need more than two consecutive new-lines.
7166 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
7168 $am_file_cache{$file} = $_;
7171 # Substitute Automake template tokens.
7172 s/(?: % \?? [\w\-]+ %
7173 | % [\w\-]+ (?:\?[^?:%]+)? (?::[^?:%]+)? %
7175 )/transform($&, \%transform)/gex;
7176 # transform() may have added some ##%-comments to strip.
7177 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
7178 # ####### and do not remove the latter.)
7179 s/^[ \t]*(?:##%)+.*\n//gm;
7181 # Split at unescaped new lines.
7182 my @lines = split (/(?<!\\)\n/, $_);
7185 while (defined ($_ = shift @lines))
7188 # If we are a rule, eat as long as we start with a tab.
7189 if (/$RULE_PATTERN/smo)
7191 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7193 $paragraph .= "\n$_";
7195 unshift (@lines, $_);
7198 # If we are a comments, eat as much comments as you can.
7199 elsif (/$COMMENT_PATTERN/smo)
7201 while (defined ($_ = shift @lines)
7202 && $_ =~ /$COMMENT_PATTERN/smo)
7204 $paragraph .= "\n$_";
7206 unshift (@lines, $_);
7209 push @res, $paragraph;
7217 # ($COMMENT, $VARIABLES, $RULES)
7218 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
7219 # -------------------------------------------------------------
7220 # Return contents of a file from $libdir/am, automatically skipping
7221 # macros or rules which are already known. $IS_AM iff the caller is
7222 # reading an Automake file (as opposed to the user's Makefile.am).
7223 sub file_contents_internal ($$$%)
7225 my ($is_am, $file, $where, %transform) = @_;
7227 $where->set ($file);
7229 my $result_vars = '';
7230 my $result_rules = '';
7234 # The following flags are used to track rules spanning across
7235 # multiple paragraphs.
7236 my $is_rule = 0; # 1 if we are processing a rule.
7237 my $discard_rule = 0; # 1 if the current rule should not be output.
7239 # We save the conditional stack on entry, and then check to make
7240 # sure it is the same on exit. This lets us conditionally include
7242 my @saved_cond_stack = @cond_stack;
7243 my $cond = new Automake::Condition (@cond_stack);
7245 foreach (make_paragraphs ($file, %transform))
7247 # FIXME: no line number available.
7248 $where->set ($file);
7251 error $where, "blank line following trailing backslash:\n$_"
7253 error $where, "comment following trailing backslash:\n$_"
7259 # Stick empty line before the incoming macro or rule.
7262 elsif (/$COMMENT_PATTERN/mso)
7265 # Stick comments before the incoming macro or rule.
7269 # Handle inclusion of other files.
7270 elsif (/$INCLUDE_PATTERN/o)
7274 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7275 $where->push_context ("`$file' included from here");
7277 my ($com, $vars, $rules)
7278 = file_contents_internal ($is_am, $file, $where, %transform);
7279 $where->pop_context;
7281 $result_vars .= $vars;
7282 $result_rules .= $rules;
7286 # Handling the conditionals.
7287 elsif (/$IF_PATTERN/o)
7289 $cond = cond_stack_if ($1, $2, $file);
7291 elsif (/$ELSE_PATTERN/o)
7293 $cond = cond_stack_else ($1, $2, $file);
7295 elsif (/$ENDIF_PATTERN/o)
7297 $cond = cond_stack_endif ($1, $2, $file);
7301 elsif (/$RULE_PATTERN/mso)
7305 # Separate relationship from optional actions: the first
7306 # `new-line tab" not preceded by backslash (continuation
7309 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
7310 my ($relationship, $actions) = ($1, $2 || '');
7312 # Separate targets from dependencies: the first colon.
7313 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7314 my ($targets, $dependencies) = ($1, $2);
7315 # Remove the escaped new lines.
7316 # I don't know why, but I have to use a tmp $flat_deps.
7317 my $flat_deps = &flatten ($dependencies);
7318 my @deps = split (' ', $flat_deps);
7320 foreach (split (' ', $targets))
7322 # FIXME: 1. We are not robust to people defining several targets
7323 # at once, only some of them being in %dependencies. The
7324 # actions from the targets in %dependencies are usually generated
7325 # from the content of %actions, but if some targets in $targets
7326 # are not in %dependencies the ELSE branch will output
7327 # a rule for all $targets (i.e. the targets which are both
7328 # in %dependencies and $targets will have two rules).
7330 # FIXME: 2. The logic here is not able to output a
7331 # multi-paragraph rule several time (e.g. for each condition
7332 # it is defined for) because it only knows the first paragraph.
7334 # FIXME: 3. We are not robust to people defining a subset
7335 # of a previously defined "multiple-target" rule. E.g.
7336 # `foo:' after `foo bar:'.
7338 # Output only if not in FALSE.
7339 if (defined $dependencies{$_} && $cond != FALSE)
7341 &depend ($_, @deps);
7342 register_action ($_, $actions);
7346 # Free-lance dependency. Output the rule for all the
7347 # targets instead of one by one.
7348 my @undefined_conds =
7349 Automake::Rule::define ($targets, $file,
7350 $is_am ? RULE_AUTOMAKE : RULE_USER,
7352 for my $undefined_cond (@undefined_conds)
7354 my $condparagraph = $paragraph;
7355 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
7356 $result_rules .= "$spacing$comment$condparagraph\n";
7358 if (scalar @undefined_conds == 0)
7360 # Remember to discard next paragraphs
7361 # if they belong to this rule.
7362 # (but see also FIXME: #2 above.)
7365 $comment = $spacing = '';
7371 elsif (/$ASSIGNMENT_PATTERN/mso)
7373 my ($var, $type, $val) = ($1, $2, $3);
7374 error $where, "variable `$var' with trailing backslash"
7379 Automake::Variable::define ($var,
7380 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
7381 $type, $cond, $val, $comment, $where,
7385 $comment = $spacing = '';
7389 # This isn't an error; it is probably some tokens which
7390 # configure is supposed to replace, such as `@SET-MAKE@',
7391 # or some part of a rule cut by an if/endif.
7392 if (! $cond->false && ! ($is_rule && $discard_rule))
7394 s/^/$cond->subst_string/gme;
7395 $result_rules .= "$spacing$comment$_\n";
7397 $comment = $spacing = '';
7401 error ($where, @cond_stack ?
7402 "unterminated conditionals: @cond_stack" :
7403 "too many conditionals closed in include file")
7404 if "@saved_cond_stack" ne "@cond_stack";
7406 return ($comment, $result_vars, $result_rules);
7411 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
7412 # ------------------------------------------------
7413 # Return contents of a file from $libdir/am, automatically skipping
7414 # macros or rules which are already known.
7415 sub file_contents ($$%)
7417 my ($basename, $where, %transform) = @_;
7418 my ($comments, $variables, $rules) =
7419 file_contents_internal (1, "$libdir/am/$basename.am", $where,
7421 return "$comments$variables$rules";
7426 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
7427 # -----------------------------------------------------
7428 # Find all variable prefixes that are used for install directories. A
7429 # prefix `zar' qualifies iff:
7431 # * `zardir' is a variable.
7432 # * `zar_PRIMARY' is a variable.
7434 # As a side effect, it looks for misspellings. It is an error to have
7435 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
7436 # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
7437 # of the same name (with "dir" appended) exists. For instance, if the
7438 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
7439 # This is to provide a little extra flexibility in those cases which
7441 sub am_primary_prefixes ($$@)
7443 my ($primary, $can_dist, @prefixes) = @_;
7446 my %valid = map { $_ => 0 } @prefixes;
7447 $valid{'EXTRA'} = 0;
7448 foreach my $var (variables $primary)
7450 # Automake is allowed to define variables that look like primaries
7451 # but which aren't. E.g. INSTALL_sh_DATA.
7452 # Autoconf can also define variables like INSTALL_DATA, so
7453 # ignore all configure variables (at least those which are not
7454 # redefined in Makefile.am).
7455 # FIXME: We should make sure that these variables are not
7456 # conditionally defined (or else adjust the condition below).
7457 my $def = $var->def (TRUE);
7458 next if $def && $def->owner != VAR_MAKEFILE;
7460 my $varname = $var->name;
7462 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
7464 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7465 if ($dist ne '' && ! $can_dist)
7468 "invalid variable `$varname': `dist' is forbidden");
7470 # Standard directories must be explicitly allowed.
7471 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
7474 "`${X}dir' is not a legitimate directory " .
7477 # A not explicitly valid directory is allowed if Xdir is defined.
7478 elsif (! defined $valid{$X} &&
7479 $var->requires_variables ("`$varname' is used", "${X}dir"))
7481 # Nothing to do. Any error message has been output
7482 # by $var->requires_variables.
7486 # Ensure all extended prefixes are actually used.
7487 $valid{"$base$dist$X"} = 1;
7492 prog_error "unexpected variable name: $varname";
7496 # Return only those which are actually defined.
7497 return sort grep { var ($_ . '_' . $primary) } keys %valid;
7501 # Handle `where_HOW' variable magic. Does all lookups, generates
7502 # install code, and possibly generates code to define the primary
7503 # variable. The first argument is the name of the .am file to munge,
7504 # the second argument is the primary variable (e.g. HEADERS), and all
7505 # subsequent arguments are possible installation locations.
7507 # Returns list of [$location, $value] pairs, where
7508 # $value's are the values in all where_HOW variable, and $location
7509 # there associated location (the place here their parent variables were
7512 # FIXME: this should be rewritten to be cleaner. It should be broken
7513 # up into multiple functions.
7515 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7522 my $default_dist = 0;
7525 if ($args[0] eq '-noextra')
7529 elsif ($args[0] eq '-candist')
7533 elsif ($args[0] eq '-defaultdist')
7538 elsif ($args[0] !~ /^-/)
7545 my ($file, $primary, @prefix) = @args;
7547 # Now that configure substitutions are allowed in where_HOW
7548 # variables, it is an error to actually define the primary. We
7549 # allow `JAVA', as it is customarily used to mean the Java
7550 # interpreter. This is but one of several Java hacks. Similarly,
7551 # `PYTHON' is customarily used to mean the Python interpreter.
7552 reject_var $primary, "`$primary' is an anachronism"
7553 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
7555 # Get the prefixes which are valid and actually used.
7556 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
7558 # If a primary includes a configure substitution, then the EXTRA_
7559 # form is required. Otherwise we can't properly do our job.
7565 foreach my $X (@prefix)
7567 my $nodir_name = $X;
7568 my $one_name = $X . '_' . $primary;
7569 my $one_var = var $one_name;
7571 my $strip_subdir = 1;
7572 # If subdir prefix should be preserved, do so.
7573 if ($nodir_name =~ /^nobase_/)
7576 $nodir_name =~ s/^nobase_//;
7579 # If files should be distributed, do so.
7583 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7584 || (! $default_dist && $nodir_name =~ /^dist_/));
7585 $nodir_name =~ s/^(dist|nodist)_//;
7589 # Use the location of the currently processed variable.
7590 # We are not processing a particular condition, so pick the first
7592 my $tmpcond = $one_var->conditions->one_cond;
7593 my $where = $one_var->rdef ($tmpcond)->location->clone;
7595 # Append actual contents of where_PRIMARY variable to
7596 # @result, skipping @substitutions@.
7597 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
7599 my ($loc, $value) = @$locvals;
7600 # Skip configure substitutions.
7601 if ($value =~ /^\@.*\@$/)
7603 if ($nodir_name eq 'EXTRA')
7606 "`$one_name' contains configure substitution, "
7609 # Check here to make sure variables defined in
7610 # configure.ac do not imply that EXTRA_PRIMARY
7612 elsif (! defined $configure_vars{$one_name})
7614 $require_extra = $one_name
7620 # Strip any $(EXEEXT) suffix the user might have added, or this
7621 # will confuse &handle_source_transform and &check_canonical_spelling.
7622 # We'll add $(EXEEXT) back later anyway.
7623 # Do it here rather than in handle_programs so the uniquifying at the
7624 # end of this function works.
7625 ${$locvals}[1] =~ s/\$\(EXEEXT\)$//
7626 if $primary eq 'PROGRAMS';
7628 push (@result, $locvals);
7631 # A blatant hack: we rewrite each _PROGRAMS primary to include
7633 append_exeext { 1 } $one_name
7634 if $primary eq 'PROGRAMS';
7635 # "EXTRA" shouldn't be used when generating clean targets,
7636 # all, or install targets. We used to warn if EXTRA_FOO was
7637 # defined uselessly, but this was annoying.
7639 if $nodir_name eq 'EXTRA';
7641 if ($nodir_name eq 'check')
7643 push (@check, '$(' . $one_name . ')');
7647 push (@used, '$(' . $one_name . ')');
7650 # Is this to be installed?
7651 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7653 # If so, with install-exec? (or install-data?).
7654 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
7656 my $check_options_p = $install_p && !! option 'std-options';
7658 # Use the location of the currently processed variable as context.
7659 $where->push_context ("while processing `$one_name'");
7661 # The variable containing all files to distribute.
7662 my $distvar = "\$($one_name)";
7663 $distvar = shadow_unconditionally ($one_name, $where)
7664 if ($dist_p && $one_var->has_conditional_contents);
7666 # Singular form of $PRIMARY.
7667 (my $one_primary = $primary) =~ s/S$//;
7668 $output_rules .= &file_contents ($file, $where,
7669 PRIMARY => $primary,
7670 ONE_PRIMARY => $one_primary,
7672 NDIR => $nodir_name,
7673 BASE => $strip_subdir,
7676 INSTALL => $install_p,
7678 DISTVAR => $distvar,
7679 'CK-OPTS' => $check_options_p);
7682 # The JAVA variable is used as the name of the Java interpreter.
7683 # The PYTHON variable is used as the name of the Python interpreter.
7684 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7687 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
7688 $output_vars .= "\n";
7691 err_var ($require_extra,
7692 "`$require_extra' contains configure substitution,\n"
7693 . "but `EXTRA_$primary' not defined")
7694 if ($require_extra && ! var ('EXTRA_' . $primary));
7696 # Push here because PRIMARY might be configure time determined.
7697 push (@all, '$(' . $primary . ')')
7698 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7700 # Make the result unique. This lets the user use conditionals in
7701 # a natural way, but still lets us program lazily -- we don't have
7702 # to worry about handling a particular object more than once.
7703 # We will keep only one location per object.
7705 for my $pair (@result)
7707 my ($loc, $val) = @$pair;
7708 $result{$val} = $loc;
7710 my @l = sort keys %result;
7711 return map { [$result{$_}->clone, $_] } @l;
7715 ################################################################
7717 # Each key in this hash is the name of a directory holding a
7718 # Makefile.in. These variables are local to `is_make_dir'.
7720 my $make_dirs_set = 0;
7725 if (! $make_dirs_set)
7727 foreach my $iter (@configure_input_files)
7729 $make_dirs{dirname ($iter)} = 1;
7731 # We also want to notice Makefile.in's.
7732 foreach my $iter (@other_input_files)
7734 if ($iter =~ /Makefile\.in$/)
7736 $make_dirs{dirname ($iter)} = 1;
7741 return defined $make_dirs{$dir};
7744 ################################################################
7746 # Find the aux dir. This should match the algorithm used by
7747 # ./configure. (See the Autoconf documentation for for
7748 # AC_CONFIG_AUX_DIR.)
7749 sub locate_aux_dir ()
7751 if (! $config_aux_dir_set_in_configure_ac)
7753 # The default auxiliary directory is the first
7754 # of ., .., or ../.. that contains install-sh.
7755 # Assume . if install-sh doesn't exist yet.
7756 for my $dir (qw (. .. ../..))
7758 if (-f "$dir/install-sh")
7760 $config_aux_dir = $dir;
7764 $config_aux_dir = '.' unless $config_aux_dir;
7766 # Avoid unsightly '/.'s.
7767 $am_config_aux_dir =
7768 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7769 $am_config_aux_dir =~ s,/*$,,;
7773 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7774 # --------------------------------------------------
7775 # See if we want to push this file onto dist_common. This function
7776 # encodes the rules for deciding when to do so.
7777 sub maybe_push_required_file
7779 my ($dir, $file, $fullfile) = @_;
7781 if ($dir eq $relative_dir)
7783 push_dist_common ($file);
7786 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7788 # If we are doing the topmost directory, and the file is in a
7789 # subdir which does not have a Makefile, then we distribute it
7792 # If a required file is above the source tree, it is important
7793 # to prefix it with `$(srcdir)' so that no VPATH search is
7794 # performed. Otherwise problems occur with Make implementations
7795 # that rewrite and simplify rules whose dependencies are found in a
7796 # VPATH location. Here is an example with OSF1/Tru64 Make.
7808 # Dependency `../a' was found in `sub/../a', but this make
7809 # implementation simplified it as `a'. (Note that the sub/
7810 # directory does not even exist.)
7812 # This kind of VPATH rewriting seems hard to cancel. The
7813 # distdir.am hack against VPATH rewriting works only when no
7814 # simplification is done, i.e., for dependencies which are in
7815 # subdirectories, not in enclosing directories. Hence, in
7816 # the latter case we use a full path to make sure no VPATH
7818 $fullfile = '$(srcdir)/' . $fullfile
7819 if $dir =~ m,^\.\.(?:$|/),;
7821 push_dist_common ($fullfile);
7828 # If a file name appears as a key in this hash, then it has already
7829 # been checked for. This allows us not to report the same error more
7831 my %required_file_not_found = ();
7833 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7834 # --------------------------------------------------------------
7835 # Verify that the file must exist in $DIRECTORY, or install it.
7836 # $MYSTRICT is the strictness level at which this file becomes required.
7837 sub require_file_internal ($$$@)
7839 my ($where, $mystrict, $dir, @files) = @_;
7841 foreach my $file (@files)
7843 my $fullfile = "$dir/$file";
7845 my $dangling_sym = 0;
7847 if (-l $fullfile && ! -f $fullfile)
7851 elsif (dir_has_case_matching_file ($dir, $file))
7854 maybe_push_required_file ($dir, $file, $fullfile);
7857 # `--force-missing' only has an effect if `--add-missing' is
7859 if ($found_it && (! $add_missing || ! $force_missing))
7865 # If we've already looked for it, we're done. You might
7866 # wonder why we don't do this before searching for the
7867 # file. If we do that, then something like
7868 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7872 next if defined $required_file_not_found{$fullfile};
7873 $required_file_not_found{$fullfile} = 1;
7876 if ($strictness >= $mystrict)
7878 if ($dangling_sym && $add_missing)
7887 # Only install missing files according to our desired
7889 my $message = "required file `$fullfile' not found";
7892 if (-f "$libdir/$file")
7896 # Install the missing file. Symlink if we
7897 # can, copy if we must. Note: delete the file
7898 # first, in case it is a dangling symlink.
7899 $message = "installing `$fullfile'";
7901 # The license file should not be volatile.
7902 if ($file eq "COPYING")
7904 $message .= " using GNU General Public License v3 file";
7905 $trailer2 = "\n Consider adding the COPYING file"
7906 . " to the version control system"
7907 . "\n for your code, to avoid questions"
7908 . " about which license your project uses.";
7911 # Windows Perl will hang if we try to delete a
7912 # file that doesn't exist.
7913 unlink ($fullfile) if -f $fullfile;
7914 if ($symlink_exists && ! $copy_missing)
7916 if (! symlink ("$libdir/$file", $fullfile)
7920 $trailer = "; error while making link: $!";
7923 elsif (system ('cp', "$libdir/$file", $fullfile))
7926 $trailer = "\n error while copying";
7928 set_dir_cache_file ($dir, $file);
7931 if (! maybe_push_required_file (dirname ($fullfile),
7934 if (! $found_it && ! $automake_will_process_aux_dir)
7936 # We have added the file but could not push it
7937 # into DIST_COMMON, probably because this is
7938 # an auxiliary file and we are not processing
7939 # the top level Makefile. Furthermore Automake
7940 # hasn't been asked to create the Makefile.in
7941 # that distributes the aux dir files.
7942 error ($where, 'Please make a full run of automake'
7943 . " so $fullfile gets distributed.");
7949 $trailer = "\n `automake --add-missing' can install `$file'"
7950 if -f "$libdir/$file";
7953 # If --force-missing was specified, and we have
7954 # actually found the file, then do nothing.
7956 if $found_it && $force_missing;
7958 # If we couldn't install the file, but it is a target in
7959 # the Makefile, don't print anything. This allows files
7960 # like README, AUTHORS, or THANKS to be generated.
7962 if !$suppress && rule $file;
7964 msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
7970 # &require_file ($WHERE, $MYSTRICT, @FILES)
7971 # -----------------------------------------
7972 sub require_file ($$@)
7974 my ($where, $mystrict, @files) = @_;
7975 require_file_internal ($where, $mystrict, $relative_dir, @files);
7978 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7979 # -----------------------------------------------------------
7980 sub require_file_with_macro ($$$@)
7982 my ($cond, $macro, $mystrict, @files) = @_;
7983 $macro = rvar ($macro) unless ref $macro;
7984 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7987 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7988 # ----------------------------------------------------------------
7989 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7990 # must be in that directory. Otherwise expect it in the current directory.
7991 sub require_libsource_with_macro ($$$@)
7993 my ($cond, $macro, $mystrict, @files) = @_;
7994 $macro = rvar ($macro) unless ref $macro;
7995 if ($config_libobj_dir)
7997 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7998 $config_libobj_dir, @files);
8002 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
8006 # Queue to push require_conf_file requirements to.
8007 my $required_conf_file_queue;
8009 # &queue_required_conf_file ($QUEUE, $KEY, $DIR, $WHERE, $MYSTRICT, @FILES)
8010 # -------------------------------------------------------------------------
8011 sub queue_required_conf_file ($$$$@)
8013 my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
8017 @serial_loc = (QUEUE_LOCATION, $where->serialize ());
8021 @serial_loc = (QUEUE_STRING, $where);
8023 $queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
8026 # &require_queued_conf_file ($QUEUE)
8027 # ----------------------------------
8028 sub require_queued_conf_file ($)
8032 my $dir = $queue->dequeue ();
8033 my $loc_key = $queue->dequeue ();
8034 if ($loc_key eq QUEUE_LOCATION)
8036 $where = Automake::Location::deserialize ($queue);
8038 elsif ($loc_key eq QUEUE_STRING)
8040 $where = $queue->dequeue ();
8044 prog_error "unexpected key $loc_key";
8046 my $mystrict = $queue->dequeue ();
8047 my $nfiles = $queue->dequeue ();
8049 push @files, $queue->dequeue ()
8050 foreach (1 .. $nfiles);
8052 # Dequeuing happens outside of per-makefile context, so we have to
8053 # set the variables used by require_file_internal and the functions
8055 $relative_dir = $dir;
8056 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8059 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
8060 # ----------------------------------------------
8061 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR;
8062 # worker threads may queue up the action to be serialized by the master.
8064 # FIXME: this seriously relies on the semantics of require_file_internal
8065 # and maybe_push_required_file, in that we exploit the fact that only the
8066 # contents of the last handled output file may be impacted (which in turn
8067 # is dealt with by the master thread).
8068 sub require_conf_file ($$@)
8070 my ($where, $mystrict, @files) = @_;
8071 if (defined $required_conf_file_queue)
8073 queue_required_conf_file ($required_conf_file_queue, QUEUE_CONF_FILE,
8074 $relative_dir, $where, $mystrict, @files);
8078 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
8083 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
8084 # ----------------------------------------------------------------
8085 sub require_conf_file_with_macro ($$$@)
8087 my ($cond, $macro, $mystrict, @files) = @_;
8088 require_conf_file (rvar ($macro)->rdef ($cond)->location,
8092 ################################################################
8094 # &require_build_directory ($DIRECTORY)
8095 # -------------------------------------
8096 # Emit rules to create $DIRECTORY if needed, and return
8097 # the file that any target requiring this directory should be made
8099 # We don't want to emit the rule twice, and want to reuse it
8100 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
8101 sub require_build_directory ($)
8103 my $directory = shift;
8105 return $directory_map{$directory} if exists $directory_map{$directory};
8107 my $cdir = File::Spec->canonpath ($directory);
8109 if (exists $directory_map{$cdir})
8111 my $stamp = $directory_map{$cdir};
8112 $directory_map{$directory} = $stamp;
8116 my $dirstamp = "$cdir/\$(am__dirstamp)";
8118 $directory_map{$directory} = $dirstamp;
8119 $directory_map{$cdir} = $dirstamp;
8121 # Set a variable for the dirstamp basename.
8122 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
8123 '$(am__leading_dot)dirstamp');
8125 # Directory must be removed by `make distclean'.
8126 $clean_files{$dirstamp} = DIST_CLEAN;
8128 $output_rules .= ("$dirstamp:\n"
8129 . "\t\@\$(MKDIR_P) $directory\n"
8130 . "\t\@: > $dirstamp\n");
8135 # &require_build_directory_maybe ($FILE)
8136 # --------------------------------------
8137 # If $FILE lies in a subdirectory, emit a rule to create this
8138 # directory and return the file that $FILE should be made
8139 # dependent upon. Otherwise, just return the empty string.
8140 sub require_build_directory_maybe ($)
8143 my $directory = dirname ($file);
8145 if ($directory ne '.')
8147 return require_build_directory ($directory);
8155 ################################################################
8157 # Push a list of files onto dist_common.
8158 sub push_dist_common
8160 prog_error "push_dist_common run after handle_dist"
8161 if $handle_dist_run;
8162 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
8163 '', INTERNAL, VAR_PRETTY);
8167 ################################################################
8169 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
8170 # ----------------------------------------------
8171 # Generate a Makefile.in given the name of the corresponding Makefile and
8172 # the name of the file output by config.status.
8173 sub generate_makefile ($$)
8175 my ($makefile_am, $makefile_in) = @_;
8177 # Reset all the Makefile.am related variables.
8178 initialize_per_input;
8180 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
8181 # warnings for this file. So hold any warning issued before
8182 # we have processed AUTOMAKE_OPTIONS.
8183 buffer_messages ('warning');
8185 # Name of input file ("Makefile.am") and output file
8186 # ("Makefile.in"). These have no directory components.
8187 $am_file_name = basename ($makefile_am);
8188 $in_file_name = basename ($makefile_in);
8190 # $OUTPUT is encoded. If it contains a ":" then the first element
8191 # is the real output file, and all remaining elements are input
8192 # files. We don't scan or otherwise deal with these input files,
8193 # other than to mark them as dependencies. See
8194 # &scan_autoconf_files for details.
8195 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
8197 $relative_dir = dirname ($makefile);
8198 $am_relative_dir = dirname ($makefile_am);
8199 $topsrcdir = backname ($relative_dir);
8201 read_main_am_file ($makefile_am);
8204 # Process buffered warnings.
8206 # Fatal error. Just return, so we can continue with next file.
8209 # Process buffered warnings.
8212 # There are a few install-related variables that you should not define.
8213 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
8218 my $def = $v->def (TRUE);
8219 prog_error "$var not defined in condition TRUE"
8221 reject_var $var, "`$var' should not be defined"
8222 if $def->owner != VAR_AUTOMAKE;
8226 # Catch some obsolete variables.
8227 msg_var ('obsolete', 'INCLUDES',
8228 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
8229 if var ('INCLUDES');
8231 # Must do this after reading .am file.
8232 define_variable ('subdir', $relative_dir, INTERNAL);
8234 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
8235 # recursive rules are enabled.
8236 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
8237 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
8239 # Check first, because we might modify some state.
8241 check_gnu_standards;
8242 check_gnits_standards;
8244 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
8251 # These must be run after all the sources are scanned. They
8252 # use variables defined by &handle_libraries, &handle_ltlibraries,
8253 # or &handle_programs.
8258 # Variables used by distdir.am and tags.am.
8259 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
8260 if (! option 'no-dist')
8262 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
8275 handle_minor_options;
8276 # Must come after handle_programs so that %known_programs is up-to-date.
8279 # This must come after most other rules.
8283 do_check_merge_target;
8284 handle_all ($makefile);
8287 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8289 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
8291 if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
8293 $output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
8297 handle_clean ($makefile);
8298 handle_factored_dependencies;
8300 # Comes last, because all the above procedures may have
8301 # defined or overridden variables.
8302 $output_vars .= output_variables;
8306 my ($out_file) = $output_directory . '/' . $makefile_in;
8308 if ($exit_code != 0)
8310 verb "not writing $out_file because of earlier errors";
8314 if (! -d ($output_directory . '/' . $am_relative_dir))
8316 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
8319 # We make sure that `all:' is the first target.
8321 "$output_vars$output_all$output_header$output_rules$output_trailer";
8323 # Decide whether we must update the output file or not.
8324 # We have to update in the following situations.
8325 # * $force_generation is set.
8326 # * any of the output dependencies is younger than the output
8327 # * the contents of the output is different (this can happen
8328 # if the project has been populated with a file listed in
8329 # @common_files since the last run).
8330 # Output's dependencies are split in two sets:
8331 # * dependencies which are also configure dependencies
8332 # These do not change between each Makefile.am
8333 # * other dependencies, specific to the Makefile.am being processed
8334 # (such as the Makefile.am itself, or any Makefile fragment
8336 my $timestamp = mtime $out_file;
8337 if (! $force_generation
8338 && $configure_deps_greatest_timestamp < $timestamp
8339 && $output_deps_greatest_timestamp < $timestamp
8340 && $output eq contents ($out_file))
8342 verb "$out_file unchanged";
8343 # No need to update.
8350 or fatal "cannot remove $out_file: $!\n";
8353 my $gm_file = new Automake::XFile "> $out_file";
8354 verb "creating $out_file";
8355 print $gm_file $output;
8358 ################################################################
8363 ################################################################
8365 # Helper function for usage().
8366 sub print_autodist_files (@)
8368 my @lcomm = sort (&uniq (@_));
8371 format USAGE_FORMAT =
8372 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8373 $four[0], $four[1], $four[2], $four[3]
8375 local $~ = "USAGE_FORMAT";
8378 my $rows = int(@lcomm / $cols);
8379 my $rest = @lcomm % $cols;
8390 for (my $y = 0; $y < $rows; $y++)
8392 @four = ("", "", "", "");
8393 for (my $x = 0; $x < $cols; $x++)
8395 last if $y + 1 == $rows && $x == $rest;
8397 my $idx = (($x > $rest)
8398 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8402 $four[$x] = $lcomm[$idx];
8409 # Print usage information.
8412 print "Usage: $0 [OPTION] ... [Makefile]...
8414 Generate Makefile.in for configure from Makefile.am.
8417 --help print this help, then exit
8418 --version print version number, then exit
8419 -v, --verbose verbosely list files processed
8420 --no-force only update Makefile.in's that are out of date
8421 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
8423 Dependency tracking:
8424 -i, --ignore-deps disable dependency tracking code
8425 --include-deps enable dependency tracking code
8428 --cygnus assume program is part of Cygnus-style tree
8429 --foreign set strictness to foreign
8430 --gnits set strictness to gnits
8431 --gnu set strictness to gnu
8434 -a, --add-missing add missing standard files to package
8435 --libdir=DIR directory storing library files
8436 -c, --copy with -a, copy missing files (default is symlink)
8437 -f, --force-missing force update of standard files
8440 Automake::ChannelDefs::usage;
8442 print "\nFiles automatically distributed if found " .
8444 print_autodist_files @common_files;
8445 print "\nFiles automatically distributed if found " .
8446 "(under certain conditions):\n";
8447 print_autodist_files @common_sometimes;
8450 Report bugs to <@PACKAGE_BUGREPORT@>.
8451 GNU Automake home page: <@PACKAGE_URL@>.
8452 General help using GNU software: <http://www.gnu.org/gethelp/>.
8455 # --help always returns 0 per GNU standards.
8462 # Print version information
8466 automake (GNU $PACKAGE) $VERSION
8467 Copyright (C) 2011 Free Software Foundation, Inc.
8468 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
8469 This is free software: you are free to change and redistribute it.
8470 There is NO WARRANTY, to the extent permitted by law.
8472 Written by Tom Tromey <tromey\@redhat.com>
8473 and Alexandre Duret-Lutz <adl\@gnu.org>.
8475 # --version always returns 0 per GNU standards.
8479 ################################################################
8481 # Parse command line.
8482 sub parse_arguments ()
8485 set_strictness ('gnu');
8487 my $cli_where = new Automake::Location;
8490 'libdir=s' => \$libdir,
8491 'gnu' => sub { set_strictness ('gnu'); },
8492 'gnits' => sub { set_strictness ('gnits'); },
8493 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
8494 'foreign' => sub { set_strictness ('foreign'); },
8495 'include-deps' => sub { unset_global_option ('no-dependencies'); },
8496 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
8498 'no-force' => sub { $force_generation = 0; },
8499 'f|force-missing' => \$force_missing,
8500 'o|output-dir=s' => \$output_directory,
8501 'a|add-missing' => \$add_missing,
8502 'c|copy' => \$copy_missing,
8503 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
8504 'W|warnings=s' => \&parse_warnings,
8505 # These long options (--Werror and --Wno-error) for backward
8506 # compatibility. Use -Werror and -Wno-error today.
8507 'Werror' => sub { parse_warnings 'W', 'error'; },
8508 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
8511 Getopt::Long::config ("bundling", "pass_through");
8513 # See if --version or --help is used. We want to process these before
8514 # anything else because the GNU Coding Standards require us to
8515 # `exit 0' after processing these options, and we can't guarantee this
8516 # if we treat other options first. (Handling other options first
8517 # could produce error diagnostics, and in this condition it is
8518 # confusing if Automake does `exit 0'.)
8519 my %cli_options_1st_pass =
8521 'version' => \&version,
8523 # Recognize all other options (and their arguments) but do nothing.
8524 map { $_ => sub {} } (keys %cli_options)
8526 my @ARGV_backup = @ARGV;
8527 Getopt::Long::GetOptions %cli_options_1st_pass
8529 @ARGV = @ARGV_backup;
8531 # Now *really* process the options. This time we know that --help
8532 # and --version are not present, but we specify them nonetheless so
8533 # that ambiguous abbreviation are diagnosed.
8534 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
8537 if (defined $output_directory)
8539 msg 'obsolete', "`--output-dir' is deprecated\n";
8543 # In the next release we'll remove this entirely.
8544 $output_directory = '.';
8547 return unless @ARGV;
8549 if ($ARGV[0] =~ /^-./)
8552 for my $k (keys %cli_options)
8554 if ($k =~ /(.*)=s$/)
8556 map { $argopts{(length ($_) == 1)
8557 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
8560 if ($ARGV[0] eq '--')
8564 elsif (exists $argopts{$ARGV[0]})
8566 fatal ("option `$ARGV[0]' requires an argument\n"
8567 . "Try `$0 --help' for more information.");
8571 fatal ("unrecognized option `$ARGV[0]'.\n"
8572 . "Try `$0 --help' for more information.");
8577 foreach my $arg (@ARGV)
8579 fatal ("empty argument\nTry `$0 --help' for more information.")
8582 # Handle $local:$input syntax.
8583 my ($local, @rest) = split (/:/, $arg);
8584 @rest = ("$local.in",) unless @rest;
8585 my $input = locate_am @rest;
8588 push @input_files, $input;
8589 $output_files{$input} = join (':', ($local, @rest));
8593 error "no Automake input file found for `$arg'";
8597 fatal "no input file found among supplied arguments"
8598 if $errspec && ! @input_files;
8602 # handle_makefile ($MAKEFILE_IN)
8603 # ------------------------------
8604 # Deal with $MAKEFILE_IN.
8605 sub handle_makefile ($)
8608 ($am_file = $file) =~ s/\.in$//;
8609 if (! -f ($am_file . '.am'))
8611 error "`$am_file.am' does not exist";
8615 # Any warning setting now local to this Makefile.am.
8618 generate_makefile ($am_file . '.am', $file);
8620 # Back out any warning setting.
8625 # handle_makefiles_serial ()
8626 # --------------------------
8627 # Deal with all makefiles, without threads.
8628 sub handle_makefiles_serial ()
8630 foreach my $file (@input_files)
8632 handle_makefile ($file);
8636 # get_number_of_threads ()
8637 # ------------------------
8638 # Logic for deciding how many worker threads to use.
8639 sub get_number_of_threads
8641 my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
8644 unless $nthreads =~ /^[0-9]+$/;
8646 # It doesn't make sense to use more threads than makefiles,
8647 my $max_threads = @input_files;
8649 # but a single worker thread is helpful for exposing bugs.
8650 if ($automake_will_process_aux_dir && $max_threads > 1)
8654 if ($nthreads > $max_threads)
8656 $nthreads = $max_threads;
8661 # handle_makefiles_threaded ($NTHREADS)
8662 # -------------------------------------
8663 # Deal with all makefiles, using threads. The general strategy is to
8664 # spawn NTHREADS worker threads, dispatch makefiles to them, and let the
8665 # worker threads push back everything that needs serialization:
8666 # * warning and (normal) error messages, for stable stderr output
8667 # order and content (avoiding duplicates, for example),
8668 # * races when installing aux files (and respective messages),
8669 # * races when collecting aux files for distribution.
8671 # The latter requires that the makefile that deals with the aux dir
8672 # files be handled last, done by the master thread.
8673 sub handle_makefiles_threaded ($)
8675 my ($nthreads) = @_;
8677 my @queued_input_files = @input_files;
8678 my $last_input_file = undef;
8679 if ($automake_will_process_aux_dir)
8681 $last_input_file = pop @queued_input_files;
8684 # The file queue distributes all makefiles, the message queues
8685 # collect all serializations needed for respective files.
8686 my $file_queue = Thread::Queue->new;
8688 foreach my $file (@queued_input_files)
8690 $msg_queues{$file} = Thread::Queue->new;
8693 verb "spawning $nthreads worker threads";
8694 my @threads = (1 .. $nthreads);
8695 foreach my $t (@threads)
8697 $t = threads->new (sub
8699 while (my $file = $file_queue->dequeue)
8701 verb "handling $file";
8702 my $queue = $msg_queues{$file};
8703 setup_channel_queue ($queue, QUEUE_MESSAGE);
8704 $required_conf_file_queue = $queue;
8705 handle_makefile ($file);
8706 $queue->enqueue (undef);
8707 setup_channel_queue (undef, undef);
8708 $required_conf_file_queue = undef;
8714 # Queue all normal makefiles.
8715 verb "queuing " . @queued_input_files . " input files";
8716 $file_queue->enqueue (@queued_input_files, (undef) x @threads);
8718 # Collect and process serializations.
8719 foreach my $file (@queued_input_files)
8721 verb "dequeuing messages for " . $file;
8722 reset_local_duplicates ();
8723 my $queue = $msg_queues{$file};
8724 while (my $key = $queue->dequeue)
8726 if ($key eq QUEUE_MESSAGE)
8728 pop_channel_queue ($queue);
8730 elsif ($key eq QUEUE_CONF_FILE)
8732 require_queued_conf_file ($queue);
8736 prog_error "unexpected key $key";
8741 foreach my $t (@threads)
8743 my @exit_thread = $t->join;
8744 $exit_code = $exit_thread[0]
8745 if ($exit_thread[0] > $exit_code);
8748 # The master processes the last file.
8749 if ($automake_will_process_aux_dir)
8751 verb "processing last input file";
8752 handle_makefile ($last_input_file);
8756 ################################################################
8758 # Parse the WARNINGS environment variable.
8761 # Parse command line.
8764 $configure_ac = require_configure_ac;
8766 # Do configure.ac scan only once.
8767 scan_autoconf_files;
8772 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
8773 if -f 'Makefile.am';
8774 fatal ("no `Makefile.am' found for any configure output$msg");
8777 my $nthreads = get_number_of_threads ();
8779 if ($perl_threads && $nthreads >= 1)
8781 handle_makefiles_threaded ($nthreads);
8785 handle_makefiles_serial ();
8791 ### Setup "GNU" style for perl-mode and cperl-mode.
8793 ## perl-indent-level: 2
8794 ## perl-continued-statement-offset: 2
8795 ## perl-continued-brace-offset: 0
8796 ## perl-brace-offset: 0
8797 ## perl-brace-imaginary-offset: 0
8798 ## perl-label-offset: -2
8799 ## cperl-indent-level: 2
8800 ## cperl-brace-offset: 0
8801 ## cperl-continued-brace-offset: 0
8802 ## cperl-label-offset: -2
8803 ## cperl-extra-newline-before-brace: t
8804 ## cperl-merge-trailing-else: nil
8805 ## cperl-continued-statement-offset: 2