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 Free Software Foundation, Inc.
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License as published by
14 # the Free Software Foundation; either version 2, or (at your option)
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program; if not, write to the Free Software
24 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
28 # Perl reimplementation by Tom Tromey <tromey@redhat.com>, and
29 # Alexandre Duret-Lutz <adl@gnu.org>.
35 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
36 unshift @INC, (split '@PATH_SEPARATOR@', $perllibdir);
38 # Override SHELL. This is required on DJGPP so that system() uses
39 # bash, not COMMAND.COM which doesn't quote arguments properly.
40 # Other systems aren't expected to use $SHELL when Automake
41 # runs, but it should be safe to drop the `if DJGPP' guard if
42 # it turns up other systems need the same thing. After all,
43 # if SHELL is used, ./configure's SHELL is always better than
44 # the user's SHELL (which may be something like tcsh).
45 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJGPP'};
49 struct (# Short name of the language (c, f77...).
51 # Nice name of the language (C, Fortran 77...).
54 # List of configure variables which must be defined.
58 # `pure' is `1' or `'. A `pure' language is one where, if
59 # all the files in a directory are of that language, then we
60 # do not require the C compiler or any code to call it.
65 # Name of the compiling variable (COMPILE).
67 # Content of the compiling variable.
69 # Flag to require compilation without linking (-c).
70 'compile_flag' => "\$",
72 # A subroutine to compute a list of possible extensions of
73 # the product given the input extensions.
74 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
75 'output_extensions' => "\$",
76 # A list of flag variables used in 'compile'.
80 # Any tag to pass to libtool while compiling.
81 'libtool_tag' => "\$",
83 # The file to use when generating rules for this language.
84 # The default is 'depend2'.
87 # Name of the linking variable (LINK).
89 # Content of the linking variable.
92 # Name of the linker variable (LD).
94 # Content of the linker variable ($(CC)).
97 # Flag to specify the output file (-o).
98 'output_flag' => "\$",
101 # This is a subroutine which is called whenever we finally
102 # determine the context in which a source file will be
104 '_target_hook' => "\$",
106 # If TRUE, nodist_ sources will be compiled using specific rules
107 # (i.e. not inference rules). The default is FALSE.
108 'nodist_specific' => "\$");
114 if (defined $self->_finish)
116 &{$self->_finish} ();
120 sub target_hook ($$$$%)
123 if (defined $self->_target_hook)
125 &{$self->_target_hook} (@_);
132 use Automake::Config;
133 use Automake::General;
135 use Automake::Channels;
136 use Automake::ChannelDefs;
137 use Automake::Configure_ac;
138 use Automake::FileUtils;
139 use Automake::Location;
140 use Automake::Condition qw/TRUE FALSE/;
141 use Automake::DisjConditions;
142 use Automake::Options;
143 use Automake::Version;
144 use Automake::Variable;
145 use Automake::VarDef;
147 use Automake::RuleDef;
148 use Automake::Wrap 'makefile_wrap';
156 # Some regular expressions. One reason to put them here is that it
157 # makes indentation work better in Emacs.
159 # Writing singled-quoted-$-terminated regexes is a pain because
160 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
161 # by a closing quote. Letting perl-mode think the quote is not closed
162 # leads to all sort of misindentations. On the other hand, defining
163 # regexes as double-quoted strings is far less readable. So usually
166 # $REGEX = '^regex_value' . "\$";
168 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
169 my $WHITE_PATTERN = '^\s*' . "\$";
170 my $COMMENT_PATTERN = '^#';
171 my $TARGET_PATTERN='[$a-zA-Z_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
172 # A rule has three parts: a list of targets, a list of dependencies,
173 # and optionally actions.
175 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
177 # Only recognize leading spaces, not leading tabs. If we recognize
178 # leading tabs here then we need to make the reader smarter, because
179 # otherwise it will think rules like `foo=bar; \' are errors.
180 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
181 # This pattern recognizes a Gnits version id and sets $1 if the
182 # release is an alpha release. We also allow a suffix which can be
183 # used to extend the version number with a "fork" identifier.
184 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
186 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
188 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
190 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
191 my $PATH_PATTERN = '(\w|[+/.-])+';
192 # This will pass through anything not of the prescribed form.
193 my $INCLUDE_PATTERN = ('^include\s+'
194 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
195 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
196 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
198 # Match `-d' as a command-line argument in a string.
199 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
200 # Directories installed during 'install-exec' phase.
201 my $EXEC_DIR_PATTERN =
202 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
204 # Values for AC_CANONICAL_*
205 use constant AC_CANONICAL_BUILD => 1;
206 use constant AC_CANONICAL_HOST => 2;
207 use constant AC_CANONICAL_TARGET => 3;
209 # Values indicating when something should be cleaned.
210 use constant MOSTLY_CLEAN => 0;
211 use constant CLEAN => 1;
212 use constant DIST_CLEAN => 2;
213 use constant MAINTAINER_CLEAN => 3;
216 my @libtool_files = qw(ltmain.sh config.guess config.sub);
217 # ltconfig appears here for compatibility with old versions of libtool.
218 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
220 # Commonly found files we look for and automatically include in
223 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
224 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
225 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
226 depcomp elisp-comp install-sh libversion.in mdate-sh missing
227 mkinstalldirs py-compile texinfo.tex ylwrap),
228 @libtool_files, @libtool_sometimes);
230 # Commonly used files we auto-include, but only sometimes. This list
231 # is used for the --help output only.
232 my @common_sometimes =
233 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
234 configure.ac configure.in stamp-vti);
236 # Standard directories from the GNU Coding Standards, and additional
237 # pkg* directories from Automake. Stored in a hash for fast member check.
238 my %standard_prefix =
239 map { $_ => 1 } (qw(bin data dataroot dvi exec html include info
240 lib libexec lisp localstate man man1 man2 man3
241 man4 man5 man6 man7 man8 man9 oldinclude pdf
242 pkgdatadir pkgincludedir pkglibdir ps sbin
243 sharedstate sysconf));
245 # Copyright on generated Makefile.ins.
246 my $gen_copyright = "\
247 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
248 # 2003, 2004, 2005 Free Software Foundation, Inc.
249 # This Makefile.in is free software; the Free Software Foundation
250 # gives unlimited permission to copy and/or distribute it,
251 # with or without modifications, as long as this notice is preserved.
253 # This program is distributed in the hope that it will be useful,
254 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
255 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
256 # PARTICULAR PURPOSE.
259 # These constants are returned by lang_*_rewrite functions.
260 # LANG_SUBDIR means that the resulting object file should be in a
261 # subdir if the source file is. In this case the file name cannot
262 # have `..' components.
263 use constant LANG_IGNORE => 0;
264 use constant LANG_PROCESS => 1;
265 use constant LANG_SUBDIR => 2;
267 # These are used when keeping track of whether an object can be built
268 # by two different paths.
269 use constant COMPILE_LIBTOOL => 1;
270 use constant COMPILE_ORDINARY => 2;
272 # We can't always associate a location to a variable or a rule,
273 # when its defined by Automake. We use INTERNAL in this case.
274 use constant INTERNAL => new Automake::Location;
277 ## ---------------------------------- ##
278 ## Variables related to the options. ##
279 ## ---------------------------------- ##
281 # TRUE if we should always generate Makefile.in.
282 my $force_generation = 1;
284 # From the Perl manual.
285 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
287 # TRUE if missing standard files should be installed.
290 # TRUE if we should copy missing files; otherwise symlink if possible.
291 my $copy_missing = 0;
293 # TRUE if we should always update files that we know about.
294 my $force_missing = 0;
297 ## ---------------------------------------- ##
298 ## Variables filled during files scanning. ##
299 ## ---------------------------------------- ##
301 # Name of the configure.ac file.
304 # Files found by scanning configure.ac for LIBOBJS.
307 # Names used in AC_CONFIG_HEADER call.
308 my @config_headers = ();
310 # Names used in AC_CONFIG_LINKS call.
311 my @config_links = ();
313 # Directory where output files go. Actually, output files are
314 # relative to this directory.
315 my $output_directory;
317 # List of Makefile.am's to process, and their corresponding outputs.
318 my @input_files = ();
319 my %output_files = ();
321 # Complete list of Makefile.am's that exist.
322 my @configure_input_files = ();
324 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
326 my @other_input_files = ();
327 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
328 # The keys are the files created by these macros.
329 my %ac_config_files_location = ();
331 # Directory to search for configure-required files. This
332 # will be computed by &locate_aux_dir and can be set using
333 # AC_CONFIG_AUX_DIR in configure.ac.
334 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
335 my $config_aux_dir = '';
336 my $config_aux_dir_set_in_configure_ac = 0;
337 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
339 my $am_config_aux_dir = '';
341 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
342 my $seen_gettext = 0;
343 # Whether AM_GNU_GETTEXT([external]) is used.
344 my $seen_gettext_external = 0;
345 # Where AM_GNU_GETTEXT appears.
346 my $ac_gettext_location;
348 # Lists of tags supported by Libtool.
349 my %libtool_tags = ();
350 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
351 # use AC_REQUIRE_AUX_FILE.
352 my $libtool_new_api = 0;
354 # Most important AC_CANONICAL_* macro seen so far.
355 my $seen_canonical = 0;
356 # Location of that macro.
357 my $canonical_location;
359 # Where AM_MAINTAINER_MODE appears.
362 # Actual version we've seen.
363 my $package_version = '';
365 # Where version is defined.
366 my $package_version_location;
368 # TRUE if we've seen AC_ENABLE_MULTILIB.
369 my $seen_multilib = 0;
371 # TRUE if we've seen AM_PROG_CC_C_O
374 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
375 my %required_aux_file = ();
377 # Where AM_INIT_AUTOMAKE is called;
378 my $seen_init_automake = 0;
380 # TRUE if we've seen AM_AUTOMAKE_VERSION.
381 my $seen_automake_version = 0;
383 # Hash table of discovered configure substitutions. Keys are names,
384 # values are `FILE:LINE' strings which are used by error message
386 my %configure_vars = ();
388 # Files included by $configure_ac.
389 my @configure_deps = ();
391 # Greatest timestamp of configure's dependencies.
392 my $configure_deps_greatest_timestamp = 0;
394 # Hash table of AM_CONDITIONAL variables seen in configure.
395 my %configure_cond = ();
397 # This maps extensions onto language names.
398 my %extension_map = ();
400 # List of the DIST_COMMON files we discovered while reading
402 my $configure_dist_common = '';
404 # This maps languages names onto objects.
407 # List of targets we must always output.
408 # FIXME: Complete, and remove falsely required targets.
409 my %required_targets =
422 # FIXME: Not required, temporary hacks.
423 # Well, actually they are sort of required: the -recursive
424 # targets will run them anyway...
429 'install-data-am' => 1,
430 'install-exec-am' => 1,
431 'installcheck-am' => 1,
437 # Set to 1 if this run will create the Makefile.in that distribute
438 # the files in config_aux_dir.
439 my $automake_will_process_aux_dir = 0;
441 # The name of the Makefile currently being processed.
445 ################################################################
447 ## ------------------------------------------ ##
448 ## Variables reset by &initialize_per_input. ##
449 ## ------------------------------------------ ##
451 # Basename and relative dir of the input file.
455 # Same but wrt Makefile.in.
459 # Greatest timestamp of the output's dependencies (excluding
460 # configure's dependencies).
461 my $output_deps_greatest_timestamp;
463 # These two variables are used when generating each Makefile.in.
464 # They hold the Makefile.in until it is ready to be printed.
471 # This is the conditional stack, updated on if/else/endif, and
472 # used to build Condition objects.
475 # This holds the set of included files.
478 # This holds a list of directories which we must create at `dist'
479 # time. This is used in some strange scenarios involving weird
480 # AC_OUTPUT commands.
483 # List of dependencies for the obvious targets.
488 # Keys in this hash table are files to delete. The associated
489 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
492 # Keys in this hash table are object files or other files in
493 # subdirectories which need to be removed. This only holds files
494 # which are created by compilations. The value in the hash indicates
495 # when the file should be removed.
496 my %compile_clean_files;
498 # Keys in this hash table are directories where we expect to build a
499 # libtool object. We use this information to decide what directories
501 my %libtool_clean_directories;
503 # Value of `$(SOURCES)', used by tags.am.
505 # Sources which go in the distribution.
508 # This hash maps object file names onto their corresponding source
509 # file names. This is used to ensure that each object is created
510 # by a single source file.
513 # This hash maps object file names onto an integer value representing
514 # whether this object has been built via ordinary compilation or
515 # libtool compilation (the COMPILE_* constants).
516 my %object_compilation_map;
519 # This keeps track of the directories for which we've already
520 # created dirstamp code.
526 # This is a list of all targets to run during "make dist".
529 # Keys in this hash are the basenames of files which must depend on
530 # ansi2knr. Values are either the empty string, or the directory in
531 # which the ANSI source file appears; the directory must have a
535 # This is the name of the redirect `all' target to use.
538 # This keeps track of which extensions we've seen (that we care
542 # This is random scratch space for the language finish functions.
543 # Don't randomly overwrite it; examine other uses of keys first.
544 my %language_scratch;
546 # We keep track of which objects need special (per-executable)
547 # handling on a per-language basis.
548 my %lang_specific_files;
550 # This is set when `handle_dist' has finished. Once this happens,
551 # we should no longer push on dist_common.
554 # Used to store a set of linkers needed to generate the sources currently
555 # under consideration.
558 # True if we need `LINK' defined. This is a hack.
561 # Was get_object_extension run?
562 # FIXME: This is a hack. a better switch should be found.
563 my $get_object_extension_was_run;
565 # Record each file processed by make_paragraphs.
566 my %transformed_files;
568 # Cache each file processed by make_paragraphs.
569 # (This is different from %transformed_files because
570 # %transformed_files is reset for each file while %am_file_cache
571 # it global to the run.)
574 ################################################################
576 # var_SUFFIXES_trigger ($TYPE, $VALUE)
577 # ------------------------------------
578 # This is called by Automake::Variable::define() when SUFFIXES
579 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
580 # The work here needs to be performed as a side-effect of the
581 # macro_define() call because SUFFIXES definitions impact
582 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
584 sub var_SUFFIXES_trigger ($$)
586 my ($type, $value) = @_;
587 accept_extensions (split (' ', $value));
589 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
591 ################################################################
593 ## --------------------------------- ##
594 ## Forward subroutine declarations. ##
595 ## --------------------------------- ##
596 sub register_language (%);
597 sub file_contents_internal ($$$%);
598 sub define_files_variable ($\@$$);
601 # &initialize_per_input ()
602 # ------------------------
603 # (Re)-Initialize per-Makefile.am variables.
604 sub initialize_per_input ()
606 reset_local_duplicates ();
609 $am_relative_dir = '';
614 $output_deps_greatest_timestamp = 0;
618 $output_trailer = '';
622 Automake::Options::reset;
623 Automake::Variable::reset;
624 Automake::Rule::reset;
642 %object_compilation_map = ();
654 %extension_seen = ();
656 %language_scratch = ();
658 %lang_specific_files = ();
660 $handle_dist_run = 0;
664 $get_object_extension_was_run = 0;
666 %compile_clean_files = ();
668 # We always include `.'. This isn't strictly correct.
669 %libtool_clean_directories = ('.' => 1);
671 %transformed_files = ();
675 ################################################################
677 # Initialize our list of languages that are internally supported.
680 register_language ('name' => 'c',
682 'config_vars' => ['CC'],
685 'flags' => ['CFLAGS', 'CPPFLAGS'],
686 'compiler' => 'COMPILE',
687 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
691 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
692 'compile_flag' => '-c',
693 'libtool_tag' => 'CC',
694 'extensions' => ['.c'],
695 '_finish' => \&lang_c_finish);
698 register_language ('name' => 'cxx',
700 'config_vars' => ['CXX'],
701 'linker' => 'CXXLINK',
702 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
704 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
705 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
706 'compiler' => 'CXXCOMPILE',
707 'compile_flag' => '-c',
708 'output_flag' => '-o',
709 'libtool_tag' => 'CXX',
713 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
716 register_language ('name' => 'objc',
717 'Name' => 'Objective C',
718 'config_vars' => ['OBJC'],
719 'linker' => 'OBJCLINK',,
720 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
722 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
723 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
724 'compiler' => 'OBJCCOMPILE',
725 'compile_flag' => '-c',
726 'output_flag' => '-o',
730 'extensions' => ['.m']);
733 register_language ('name' => 'header',
735 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
738 'output_extensions' => sub { return () },
740 '_finish' => sub { });
743 register_language ('name' => 'yacc',
745 'config_vars' => ['YACC'],
746 'flags' => ['YFLAGS'],
747 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
748 'compiler' => 'YACCCOMPILE',
749 'extensions' => ['.y'],
750 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
752 'rule_file' => 'yacc',
753 '_finish' => \&lang_yacc_finish,
754 '_target_hook' => \&lang_yacc_target_hook,
755 'nodist_specific' => 1);
756 register_language ('name' => 'yaccxx',
757 'Name' => 'Yacc (C++)',
758 'config_vars' => ['YACC'],
759 'rule_file' => 'yacc',
760 'flags' => ['YFLAGS'],
761 'compiler' => 'YACCCOMPILE',
762 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
763 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
764 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
766 '_finish' => \&lang_yacc_finish,
767 '_target_hook' => \&lang_yacc_target_hook,
768 'nodist_specific' => 1);
771 register_language ('name' => 'lex',
773 'config_vars' => ['LEX'],
774 'rule_file' => 'lex',
775 'flags' => ['LFLAGS'],
776 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
777 'compiler' => 'LEXCOMPILE',
778 'extensions' => ['.l'],
779 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
781 '_finish' => \&lang_lex_finish,
782 '_target_hook' => \&lang_lex_target_hook,
783 'nodist_specific' => 1);
784 register_language ('name' => 'lexxx',
785 'Name' => 'Lex (C++)',
786 'config_vars' => ['LEX'],
787 'rule_file' => 'lex',
788 'flags' => ['LFLAGS'],
789 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
790 'compiler' => 'LEXCOMPILE',
791 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
792 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
794 '_finish' => \&lang_lex_finish,
795 '_target_hook' => \&lang_lex_target_hook,
796 'nodist_specific' => 1);
799 register_language ('name' => 'asm',
800 'Name' => 'Assembler',
801 'config_vars' => ['CCAS', 'CCASFLAGS'],
803 'flags' => ['CCASFLAGS'],
804 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
805 # or anything else required. They can also set CCAS.
806 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
807 'compiler' => 'CCASCOMPILE',
808 'compile_flag' => '-c',
809 'extensions' => ['.s'],
811 # With assembly we still use the C linker.
812 '_finish' => \&lang_c_finish);
814 # Preprocessed Assembler.
815 register_language ('name' => 'cppasm',
816 'Name' => 'Preprocessed Assembler',
817 'config_vars' => ['CCAS', 'CCASFLAGS'],
820 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
821 # Users can set AM_ASFLAGS to include DEFS, INCLUDES,
822 # or anything else required. They can also set CCAS.
823 'compile' => '$(CCAS) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
824 'compiler' => 'CPPASCOMPILE',
825 'compile_flag' => '-c',
826 'extensions' => ['.S'],
828 # With assembly we still use the C linker.
829 '_finish' => \&lang_c_finish);
832 register_language ('name' => 'f77',
833 'Name' => 'Fortran 77',
834 'linker' => 'F77LINK',
835 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
836 'flags' => ['FFLAGS'],
837 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
838 'compiler' => 'F77COMPILE',
839 'compile_flag' => '-c',
840 'output_flag' => '-o',
841 'libtool_tag' => 'F77',
845 'extensions' => ['.f', '.for']);
848 register_language ('name' => 'fc',
850 'linker' => 'FCLINK',
851 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
852 'flags' => ['FCFLAGS'],
853 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
854 'compiler' => 'FCCOMPILE',
855 'compile_flag' => '-c',
856 'output_flag' => '-o',
860 'extensions' => ['.f90', '.f95']);
862 # Preprocessed Fortran
863 register_language ('name' => 'ppfc',
864 'Name' => 'Preprocessed Fortran',
865 'config_vars' => ['FC'],
866 'linker' => 'FCLINK',
867 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
870 'flags' => ['FCFLAGS', 'CPPFLAGS'],
871 'compiler' => 'PPFCCOMPILE',
872 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
873 'compile_flag' => '-c',
874 'output_flag' => '-o',
875 'libtool_tag' => 'FC',
877 'extensions' => ['.F90','.F95']);
879 # Preprocessed Fortran 77
881 # The current support for preprocessing Fortran 77 just involves
882 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
883 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
884 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
885 # for `make' Version 3.76 Beta' (specifically, from info file
886 # `(make)Catalogue of Rules').
888 # A better approach would be to write an Autoconf test
889 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
890 # Fortran 77 compilers know how to do preprocessing. The Autoconf
891 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
892 # preprocessing capabilities, and then fall back on cpp (if cpp were
894 register_language ('name' => 'ppf77',
895 'Name' => 'Preprocessed Fortran 77',
896 'config_vars' => ['F77'],
897 'linker' => 'F77LINK',
898 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
901 'flags' => ['FFLAGS', 'CPPFLAGS'],
902 'compiler' => 'PPF77COMPILE',
903 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
904 'compile_flag' => '-c',
905 'output_flag' => '-o',
906 'libtool_tag' => 'F77',
908 'extensions' => ['.F']);
911 register_language ('name' => 'ratfor',
913 'config_vars' => ['F77'],
914 'linker' => 'F77LINK',
915 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
918 'flags' => ['RFLAGS', 'FFLAGS'],
920 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
921 'compiler' => 'RCOMPILE',
922 'compile_flag' => '-c',
923 'output_flag' => '-o',
924 'libtool_tag' => 'F77',
926 'extensions' => ['.r']);
929 register_language ('name' => 'java',
931 'config_vars' => ['GCJ'],
932 'linker' => 'GCJLINK',
933 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
935 'flags' => ['GCJFLAGS'],
936 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
937 'compiler' => 'GCJCOMPILE',
938 'compile_flag' => '-c',
939 'output_flag' => '-o',
940 'libtool_tag' => 'GCJ',
944 'extensions' => ['.java', '.class', '.zip', '.jar']);
946 ################################################################
948 # Error reporting functions.
950 # err_am ($MESSAGE, [%OPTIONS])
951 # -----------------------------
952 # Uncategorized errors about the current Makefile.am.
955 msg_am ('error', @_);
958 # err_ac ($MESSAGE, [%OPTIONS])
959 # -----------------------------
960 # Uncategorized errors about configure.ac.
963 msg_ac ('error', @_);
966 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
967 # ---------------------------------------
968 # Messages about about the current Makefile.am.
971 my ($channel, $msg, %opts) = @_;
972 msg $channel, "${am_file}.am", $msg, %opts;
975 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
976 # ---------------------------------------
977 # Messages about about configure.ac.
980 my ($channel, $msg, %opts) = @_;
981 msg $channel, $configure_ac, $msg, %opts;
984 ################################################################
988 # Return a configure-style substitution using the indicated text.
989 # We do this to avoid having the substitutions directly in automake.in;
990 # when we do that they are sometimes removed and this causes confusion
995 return '@' . $text . '@';
998 ################################################################
1002 # &backname ($REL-DIR)
1003 # --------------------
1004 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1005 # For instance `src/foo' => `../..'.
1006 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1011 foreach (split (/\//, $file))
1013 next if $_ eq '.' || $_ eq '';
1023 return join ('/', @res) || '.';
1026 ################################################################
1029 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1032 my $var = var ('AUTOMAKE_OPTIONS');
1035 # FIXME: We should disallow conditional definitions of AUTOMAKE_OPTIONS.
1036 if (process_option_list ($var->rdef (TRUE)->location,
1037 $var->value_as_list_recursive (cond_filter =>
1044 if ($strictness == GNITS)
1046 set_option ('readme-alpha', INTERNAL);
1047 set_option ('std-options', INTERNAL);
1048 set_option ('check-news', INTERNAL);
1054 # shadow_unconditionally ($varname, $where)
1055 # -----------------------------------------
1056 # Return a $(variable) that contains all possible values
1057 # $varname can take.
1058 # If the VAR wasn't defined conditionally, return $(VAR).
1059 # Otherwise we create a am__VAR_DIST variable which contains
1060 # all possible values, and return $(am__VAR_DIST).
1061 sub shadow_unconditionally ($$)
1063 my ($varname, $where) = @_;
1064 my $var = var $varname;
1065 if ($var->has_conditional_contents)
1067 $varname = "am__${varname}_DIST";
1068 my @files = uniq ($var->value_as_list_recursive);
1069 define_pretty_variable ($varname, TRUE, $where, @files);
1071 return "\$($varname)"
1074 # get_object_extension ($EXTENSION)
1075 # ---------------------------------
1076 # Prefix $EXTENSION with $U if ansi2knr is in use.
1077 sub get_object_extension ($)
1079 my ($extension) = @_;
1081 # Check for automatic de-ANSI-fication.
1082 $extension = '$U' . $extension
1083 if option 'ansi2knr';
1085 $get_object_extension_was_run = 1;
1090 # check_user_variables (@LIST)
1091 # ----------------------------
1092 # Make sure each variable VAR in @LIST do not exist, suggest using AM_VAR
1094 sub check_user_variables (@)
1096 my @dont_override = @_;
1097 foreach my $flag (@dont_override)
1099 my $var = var $flag;
1102 for my $cond ($var->conditions->conds)
1104 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1106 msg_cond_var ('gnu', $cond, $flag,
1107 "`$flag' is a user variable, "
1108 . "you should not override it;\n"
1109 . "use `AM_$flag' instead.");
1116 # Call finish function for each language that was used.
1117 sub handle_languages
1119 if (! option 'no-dependencies')
1121 # Include auto-dep code. Don't include it if DEP_FILES would
1123 if (&saw_sources_p (0) && keys %dep_files)
1125 # Set location of depcomp.
1126 &define_variable ('depcomp',
1127 "\$(SHELL) $am_config_aux_dir/depcomp",
1129 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1131 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1133 my @deplist = sort keys %dep_files;
1134 # Generate each `include' individually. Irix 6 make will
1135 # not properly include several files resulting from a
1136 # variable expansion; generating many separate includes
1138 $output_rules .= "\n";
1139 foreach my $iter (@deplist)
1141 $output_rules .= (subst ('AMDEP_TRUE')
1142 . subst ('am__include')
1144 . subst ('am__quote')
1146 . subst ('am__quote')
1150 # Compute the set of directories to remove in distclean-depend.
1151 my @depdirs = uniq (map { dirname ($_) } @deplist);
1152 $output_rules .= &file_contents ('depend',
1153 new Automake::Location,
1154 DEPDIRS => "@depdirs");
1159 &define_variable ('depcomp', '', INTERNAL);
1160 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1165 # Is the c linker needed?
1167 foreach my $ext (sort keys %extension_seen)
1169 next unless $extension_map{$ext};
1171 my $lang = $languages{$extension_map{$ext}};
1173 my $rule_file = $lang->rule_file || 'depend2';
1175 # Get information on $LANG.
1176 my $pfx = $lang->autodep;
1177 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1179 my ($AMDEP, $FASTDEP) =
1180 (option 'no-dependencies' || $lang->autodep eq 'no')
1181 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1183 my %transform = ('EXT' => $ext,
1187 'FASTDEP' => $FASTDEP,
1188 '-c' => $lang->compile_flag || '',
1190 => (count_files_for_language ($lang->name) > 1),
1191 # These are not used, but they need to be defined
1192 # so &transform do not complain.
1194 'DERIVED-EXT' => 'BUG',
1198 # Generate the appropriate rules for this extension.
1199 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1200 || defined $lang->compile)
1202 # Some C compilers don't support -c -o. Use it only if really
1204 my $output_flag = $lang->output_flag || '';
1207 && $lang->name eq 'c'
1208 && option 'subdir-objects');
1210 # Compute a possible derived extension.
1211 # This is not used by depend2.am.
1212 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1214 # When we output an inference rule like `.c.o:' we
1215 # have two cases to consider: either subdir-objects
1216 # is used, or it is not.
1218 # In the latter case the rule is used to build objects
1219 # in the current directory, and dependencies always
1220 # go into `./$(DEPDIR)/'. We can hard-code this value.
1222 # In the former case the rule can be used to build
1223 # objects in sub-directories too. Dependencies should
1224 # go into the appropriate sub-directories, e.g.,
1225 # `sub/$(DEPDIR)/'. The value of this directory
1226 # need the be computed on-the-fly.
1228 # DEPBASE holds the name of this directory, plus the
1229 # basename part of the object file (extensions Po, TPo,
1230 # Plo, TPlo will be added later as appropriate). It is
1231 # either hardcoded, or a shell variable (`$depbase') that
1232 # will be computed by the rule.
1234 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1236 file_contents ($rule_file,
1237 new Automake::Location,
1241 'DERIVED-EXT' => $der_ext,
1243 DEPBASE => $depbase,
1250 COMPILE => '$(' . $lang->compiler . ')',
1251 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1253 SUBDIROBJ => !! option 'subdir-objects');
1256 # Now include code for each specially handled object with this
1258 my %seen_files = ();
1259 foreach my $file (@{$lang_specific_files{$lang->name}})
1261 my ($derived, $source, $obj, $myext, %file_transform) = @$file;
1263 # We might see a given object twice, for instance if it is
1264 # used under different conditions.
1265 next if defined $seen_files{$obj};
1266 $seen_files{$obj} = 1;
1268 prog_error ("found " . $lang->name .
1269 " in handle_languages, but compiler not defined")
1270 unless defined $lang->compile;
1272 my $obj_compile = $lang->compile;
1274 # Rewrite each occurrence of `AM_$flag' in the compile
1275 # rule into `${derived}_$flag' if it exists.
1276 for my $flag (@{$lang->flags})
1278 my $val = "${derived}_$flag";
1279 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1283 my $libtool_tag = '';
1284 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1286 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1289 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1290 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1293 "\$(LIBTOOL) $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1294 . "--mode=compile $obj_compile";
1296 # We _need_ `-o' for per object rules.
1297 my $output_flag = $lang->output_flag || '-o';
1299 my $depbase = dirname ($obj);
1303 unless $depbase eq '';
1304 $depbase .= '$(DEPDIR)/' . basename ($obj);
1306 # Support for deansified files in subdirectories is ugly
1307 # enough to deserve an explanation.
1309 # A Note about normal ansi2knr processing first. On
1311 # AUTOMAKE_OPTIONS = ansi2knr
1312 # bin_PROGRAMS = foo
1313 # foo_SOURCES = foo.c
1315 # we generate rules similar to:
1317 # foo: foo$U.o; link ...
1318 # foo$U.o: foo$U.c; compile ...
1319 # foo_.c: foo.c; ansi2knr ...
1321 # this is fairly compact, and will call ansi2knr depending
1322 # on the value of $U (`' or `_').
1324 # It's harder with subdir sources. On
1326 # AUTOMAKE_OPTIONS = ansi2knr
1327 # bin_PROGRAMS = foo
1328 # foo_SOURCES = sub/foo.c
1330 # we have to create foo_.c in the current directory.
1331 # (Unless the user asks 'subdir-objects'.) This is important
1332 # in case the same file (`foo.c') is compiled from other
1333 # directories with different cpp options: foo_.c would
1334 # be preprocessed for only one set of options if it were
1335 # put in the subdirectory.
1337 # Because foo$U.o must be built from either foo_.c or
1338 # sub/foo.c we can't be as concise as in the first example.
1341 # foo: foo$U.o; link ...
1342 # foo_.o: foo_.c; compile ...
1343 # foo.o: sub/foo.c; compile ...
1344 # foo_.c: foo.c; ansi2knr ...
1346 # This is why we'll now transform $rule_file twice
1347 # if we detect this case.
1348 # A first time we output the compile rule with `$U'
1349 # replaced by `_' and the source directory removed,
1350 # and another time we simply remove `$U'.
1352 # Note that at this point $source (as computed by
1353 # &handle_single_transform) is `sub/foo$U.c'.
1354 # This can be confusing: it can be used as-is when
1355 # subdir-objects is set, otherwise you have to know
1356 # it really means `foo_.c' or `sub/foo.c'.
1357 my $objdir = dirname ($obj);
1358 my $srcdir = dirname ($source);
1359 if ($lang->ansi && $obj =~ /\$U/)
1361 prog_error "`$obj' contains \$U, but `$source' doesn't."
1362 if $source !~ /\$U/;
1364 (my $source_ = $source) =~ s/\$U/_/g;
1365 # Output an additional rule if _.c and .c are not in
1366 # the same directory. (_.c is always in $objdir.)
1367 if ($objdir ne $srcdir)
1369 (my $obj_ = $obj) =~ s/\$U/_/g;
1370 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1371 $source_ = basename ($source_);
1374 file_contents ($rule_file,
1375 new Automake::Location,
1379 DEPBASE => $depbase_,
1382 OBJ => "$obj_$myext",
1383 OBJOBJ => "$obj_.obj",
1384 LTOBJ => "$obj_.lo",
1386 COMPILE => $obj_compile,
1387 LTCOMPILE => $obj_ltcompile,
1391 $depbase =~ s/\$U//g;
1392 $source =~ s/\$U//g;
1397 file_contents ($rule_file,
1398 new Automake::Location,
1402 DEPBASE => $depbase,
1405 # Use $myext and not `.o' here, in case
1406 # we are actually building a new source
1407 # file -- e.g. via yacc.
1408 OBJ => "$obj$myext",
1409 OBJOBJ => "$obj.obj",
1412 COMPILE => $obj_compile,
1413 LTCOMPILE => $obj_ltcompile,
1418 # The rest of the loop is done once per language.
1419 next if defined $done{$lang};
1422 # Load the language dependent Makefile chunks.
1423 my %lang = map { uc ($_) => 0 } keys %languages;
1424 $lang{uc ($lang->name)} = 1;
1425 $output_rules .= file_contents ('lang-compile',
1426 new Automake::Location,
1429 # If the source to a program consists entirely of code from a
1430 # `pure' language, for instance C++ or Fortran 77, then we
1431 # don't need the C compiler code. However if we run into
1432 # something unusual then we do generate the C code. There are
1433 # probably corner cases here that do not work properly.
1434 # People linking Java code to Fortran code deserve pain.
1435 $needs_c ||= ! $lang->pure;
1437 define_compiler_variable ($lang)
1438 if ($lang->compile);
1440 define_linker_variable ($lang)
1443 require_variables ("$am_file.am", $lang->Name . " source seen",
1444 TRUE, @{$lang->config_vars});
1446 # Call the finisher.
1449 # Flags listed in `->flags' are user variables (per GNU Standards),
1450 # they should not be overridden in the Makefile...
1451 my @dont_override = @{$lang->flags};
1452 # ... and so is LDFLAGS.
1453 push @dont_override, 'LDFLAGS' if $lang->link;
1455 check_user_variables @dont_override;
1458 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1459 # suffix rule was learned), don't bother with the C stuff. But if
1460 # anything else creeps in, then use it.
1462 if $need_link || suffix_rules_count > 1;
1466 &define_compiler_variable ($languages{'c'})
1467 unless defined $done{$languages{'c'}};
1468 define_linker_variable ($languages{'c'});
1472 # Check to make sure a source defined in LIBOBJS is not explicitly
1473 # mentioned. This is a separate function (as opposed to being inlined
1474 # in handle_source_transform) because it isn't always appropriate to
1476 sub check_libobjs_sources
1478 my ($one_file, $unxformed) = @_;
1480 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1481 'dist_EXTRA_', 'nodist_EXTRA_')
1484 my $varname = $prefix . $one_file . '_SOURCES';
1485 my $var = var ($varname);
1488 @files = $var->value_as_list_recursive;
1490 elsif ($prefix eq '')
1492 @files = ($unxformed . '.c');
1499 foreach my $file (@files)
1501 err_var ($prefix . $one_file . '_SOURCES',
1502 "automatically discovered file `$file' should not" .
1503 " be explicitly mentioned")
1504 if defined $libsources{$file};
1511 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1512 # -----------------------------------------------------------------------------
1513 # Does much of the actual work for handle_source_transform.
1515 # $VAR is the name of the variable that the source filenames come from
1516 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1517 # $DERIVED is the name of resulting executable or library
1518 # $OBJ is the object extension (e.g., `$U.lo')
1519 # $FILE the source file to transform
1520 # %TRANSFORM contains extras arguments to pass to file_contents
1521 # when producing explicit rules
1522 # Result is a list of the names of objects
1523 # %linkers_used will be updated with any linkers needed
1524 sub handle_single_transform ($$$$$%)
1526 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1527 my @files = ($_file);
1529 my $nonansi_obj = $obj;
1530 $nonansi_obj =~ s/\$U//g;
1532 # Turn sources into objects. We use a while loop like this
1533 # because we might add to @files in the loop.
1534 while (scalar @files > 0)
1538 # Configure substitutions in _SOURCES variables are errors.
1541 my $parent_msg = '';
1542 $parent_msg = "\nand is referred to from `$topparent'"
1543 if $topparent ne $var->name;
1545 "`" . $var->name . "' includes configure substitution `$_'"
1546 . $parent_msg . ";\nconfigure " .
1547 "substitutions are not allowed in _SOURCES variables");
1551 # If the source file is in a subdirectory then the `.o' is put
1552 # into the current directory, unless the subdir-objects option
1555 # Split file name into base and extension.
1556 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1558 my $directory = $1 || '';
1562 # We must generate a rule for the object if it requires its own flags.
1564 my ($linker, $object);
1566 # This records whether we've seen a derived source file (e.g.
1568 my $derived_source = 0;
1570 # This holds the `aggregate context' of the file we are
1571 # currently examining. If the file is compiled with
1572 # per-object flags, then it will be the name of the object.
1573 # Otherwise it will be `AM'. This is used by the target hook
1574 # language function.
1575 my $aggregate = 'AM';
1577 $extension = &derive_suffix ($extension, $nonansi_obj);
1579 if ($extension_map{$extension} &&
1580 ($lang = $languages{$extension_map{$extension}}))
1582 # Found the language, so see what it says.
1583 &saw_extension ($extension);
1585 # Do we have per-executable flags for this executable?
1586 my $have_per_exec_flags = 0;
1587 my @peflags = @{$lang->flags};
1588 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1589 foreach my $flag (@peflags)
1591 if (set_seen ("${derived}_$flag"))
1593 $have_per_exec_flags = 1;
1598 # Note: computed subr call. The language rewrite function
1599 # should return one of the LANG_* constants. It could
1600 # also return a list whose first value is such a constant
1601 # and whose second value is a new source extension which
1602 # should be applied. This means this particular language
1603 # generates another source file which we must then process
1605 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1606 my ($r, $source_extension)
1607 = &$subr ($directory, $base, $extension,
1608 $nonansi_obj, $have_per_exec_flags, $var);
1609 # Skip this entry if we were asked not to process it.
1610 next if $r == LANG_IGNORE;
1612 # Now extract linker and other info.
1613 $linker = $lang->linker;
1616 if (defined $source_extension)
1618 $this_obj_ext = $source_extension;
1619 $derived_source = 1;
1623 $this_obj_ext = $obj;
1627 $this_obj_ext = $nonansi_obj;
1629 $object = $base . $this_obj_ext;
1631 if ($have_per_exec_flags)
1633 # We have a per-executable flag in effect for this
1634 # object. In this case we rewrite the object's
1635 # name to ensure it is unique.
1637 # We choose the name `DERIVED_OBJECT' to ensure
1638 # (1) uniqueness, and (2) continuity between
1639 # invocations. However, this will result in a
1640 # name that is too long for losing systems, in
1641 # some situations. So we provide _SHORTNAME to
1644 my $dname = $derived;
1645 my $var = var ($derived . '_SHORTNAME');
1648 # FIXME: should use the same Condition as
1649 # the _SOURCES variable. But this is really
1650 # silly overkill -- nobody should have
1651 # conditional shortnames.
1652 $dname = $var->variable_value;
1654 $object = $dname . '-' . $object;
1656 prog_error ($lang->name . " flags defined without compiler")
1657 if ! defined $lang->compile;
1662 # If rewrite said it was ok, put the object into a
1664 if ($r == LANG_SUBDIR && $directory ne '')
1666 $object = $directory . '/' . $object;
1669 # If the object file has been renamed (because per-target
1670 # flags are used) we cannot compile the file with an
1671 # inference rule: we need an explicit rule.
1673 # If the source is in a subdirectory and the object is in
1674 # the current directory, we also need an explicit rule.
1676 # If both source and object files are in a subdirectory
1677 # (this happens when the subdir-objects option is used),
1678 # then the inference will work.
1680 # The latter case deserves a historical note. When the
1681 # subdir-objects option was added on 1999-04-11 it was
1682 # thought that inferences rules would work for
1683 # subdirectory objects too. Later, on 1999-11-22,
1684 # automake was changed to output explicit rules even for
1685 # subdir-objects. Nobody remembers why, but this occured
1686 # soon after the merge of the user-dep-gen-branch so it
1687 # might be related. In late 2003 people complained about
1688 # the size of the generated Makefile.ins (libgcj, with
1689 # 2200+ subdir objects was reported to have a 9MB
1690 # Makefile), so we now rely on inference rules again.
1691 # Maybe we'll run across the same issue as in the past,
1692 # but at least this time we can document it. However since
1693 # dependency tracking has evolved it is possible that
1694 # our old problem no longer exists.
1695 # Using inference rules for subdir-objects has been tested
1696 # with GNU make, Solaris make, Ultrix make, BSD make,
1697 # HP-UX make, and OSF1 make successfully.
1699 || ($directory ne '' && ! option 'subdir-objects')
1700 # We must also use specific rules for a nodist_ source
1701 # if its language requests it.
1702 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1704 my $obj_sans_ext = substr ($object, 0,
1705 - length ($this_obj_ext));
1706 my $full_ansi = $full;
1707 if ($lang->ansi && option 'ansi2knr')
1709 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1710 $obj_sans_ext .= '$U';
1713 my @specifics = ($full_ansi, $obj_sans_ext,
1714 # Only use $this_obj_ext in the derived
1715 # source case because in the other case we
1716 # *don't* want $(OBJEXT) to appear here.
1717 ($derived_source ? $this_obj_ext : '.o'));
1719 # If we renamed the object then we want to use the
1720 # per-executable flag name. But if this is simply a
1721 # subdir build then we still want to use the AM_ flag
1725 unshift @specifics, $derived;
1726 $aggregate = $derived;
1730 unshift @specifics, 'AM';
1733 # Each item on this list is a reference to a list consisting
1734 # of four values followed by additional transform flags for
1735 # file_contents. The four values are the derived flag prefix
1736 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1737 # source file, the base name of the output file, and
1738 # the extension for the object file.
1739 push (@{$lang_specific_files{$lang->name}},
1740 [@specifics, %transform]);
1743 elsif ($extension eq $nonansi_obj)
1745 # This is probably the result of a direct suffix rule.
1746 # In this case we just accept the rewrite.
1747 $object = "$base$extension";
1752 # No error message here. Used to have one, but it was
1754 # FIXME: we could potentially do more processing here,
1755 # perhaps treating the new extension as though it were a
1756 # new source extension (as above). This would require
1757 # more restructuring than is appropriate right now.
1761 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1762 if (defined $object_map{$object}
1763 && $object_map{$object} ne $full);
1765 my $comp_val = (($object =~ /\.lo$/)
1766 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1767 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1768 if (defined $object_compilation_map{$comp_obj}
1769 && $object_compilation_map{$comp_obj} != 0
1770 # Only see the error once.
1771 && ($object_compilation_map{$comp_obj}
1772 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1773 && $object_compilation_map{$comp_obj} != $comp_val)
1775 err_am "object `$comp_obj' created both with libtool and without";
1777 $object_compilation_map{$comp_obj} |= $comp_val;
1781 # Let the language do some special magic if required.
1782 $lang->target_hook ($aggregate, $object, $full, %transform);
1785 if ($derived_source)
1787 prog_error ($lang->name . " has automatic dependency tracking")
1788 if $lang->autodep ne 'no';
1789 # Make sure this new source file is handled next. That will
1790 # make it appear to be at the right place in the list.
1791 unshift (@files, $object);
1792 # Distribute derived sources unless the source they are
1793 # derived from is not.
1794 &push_dist_common ($object)
1795 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1799 $linkers_used{$linker} = 1;
1801 push (@result, $object);
1803 if (! defined $object_map{$object})
1806 $object_map{$object} = $full;
1808 # If resulting object is in subdir, we need to make
1809 # sure the subdir exists at build time.
1810 if ($object =~ /\//)
1812 # FIXME: check that $DIRECTORY is somewhere in the
1815 # For Java, the way we're handling it right now, a
1816 # `..' component doesn't make sense.
1817 if ($lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1819 err_am "`$full' should not contain a `..' component";
1822 # Make sure object is removed by `make mostlyclean'.
1823 $compile_clean_files{$object} = MOSTLY_CLEAN;
1824 # If we have a libtool object then we also must remove
1826 if ($object =~ /\.lo$/)
1828 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1829 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1831 # Remove any libtool object in this directory.
1832 $libtool_clean_directories{$directory} = 1;
1835 push (@dep_list, require_build_directory ($directory));
1837 # If we're generating dependencies, we also want
1838 # to make sure that the appropriate subdir of the
1839 # .deps directory is created.
1841 require_build_directory ($directory . '/$(DEPDIR)'))
1842 unless option 'no-dependencies';
1845 &pretty_print_rule ($object . ':', "\t", @dep_list)
1846 if scalar @dep_list > 0;
1849 # Transform .o or $o file into .P file (for automatic
1851 if ($lang && $lang->autodep ne 'no')
1853 my $depfile = $object;
1854 $depfile =~ s/\.([^.]*)$/.P$1/;
1855 $depfile =~ s/\$\(OBJEXT\)$/o/;
1856 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1857 . basename ($depfile)} = 1;
1866 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1867 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1868 # ---------------------------------------------------------------------------
1869 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1872 # $VAR is the name of the _SOURCES variable
1873 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1874 # it will be generated and returned).
1875 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1876 # work done to determine the linker will be).
1877 # $ONE_FILE is the canonical (transformed) name of object to build
1878 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1879 # $TOPPARENT is the _SOURCES variable being processed.
1880 # $WHERE context into which this definition is done
1881 # %TRANSFORM extra arguments to pass to file_contents when producing
1884 # Result is a pair ($LINKER, $OBJVAR):
1885 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1886 sub define_objects_from_sources ($$$$$$$%)
1888 my ($var, $objvar, $nodefine, $one_file,
1889 $obj, $topparent, $where, %transform) = @_;
1891 my $needlinker = "";
1893 transform_variable_recursively
1894 ($var, $objvar, 'am__objects', $nodefine, $where,
1895 # The transform code to run on each filename.
1897 my ($subvar, $val, $cond, $full_cond) = @_;
1898 my @trans = handle_single_transform ($subvar, $topparent,
1899 $one_file, $obj, $val,
1901 $needlinker = "true" if @trans;
1909 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1910 # -----------------------------------------------------------------------------
1911 # Handle SOURCE->OBJECT transform for one program or library.
1913 # canonical (transformed) name of target to build
1914 # actual target of object to build
1915 # object extension (i.e. either `.o' or `$o'.
1916 # location of the source variable
1917 # extra arguments to pass to file_contents when producing rules
1918 # Return result is name of linker variable that must be used.
1919 # Empty return means just use `LINK'.
1920 sub handle_source_transform ($$$$%)
1922 # one_file is canonical name. unxformed is given name. obj is
1924 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
1928 # No point in continuing if _OBJECTS is defined.
1929 return if reject_var ($one_file . '_OBJECTS',
1930 $one_file . '_OBJECTS should not be defined');
1935 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1936 'dist_EXTRA_', 'nodist_EXTRA_')
1938 my $varname = $prefix . $one_file . "_SOURCES";
1939 my $var = var $varname;
1942 # We are going to define _OBJECTS variables using the prefix.
1943 # Then we glom them all together. So we can't use the null
1944 # prefix here as we need it later.
1945 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
1947 # Keep track of which prefixes we saw.
1948 $used_pfx{$xpfx} = 1
1949 unless $prefix =~ /EXTRA_/;
1951 push @sources, "\$($varname)";
1952 push @dist_sources, shadow_unconditionally ($varname, $where)
1953 unless (option ('no-dist') || $prefix =~ /^nodist_/);
1956 define_objects_from_sources ($varname,
1957 $xpfx . $one_file . '_OBJECTS',
1958 $prefix =~ /EXTRA_/,
1959 $one_file, $obj, $varname, $where,
1960 DIST_SOURCE => ($prefix !~ /^nodist_/),
1965 $linker ||= &resolve_linker (%linkers_used);
1968 my @keys = sort keys %used_pfx;
1969 if (scalar @keys == 0)
1971 # The default source for libfoo.la is libfoo.c, but for
1972 # backward compatibility we first look at libfoo_la.c
1973 my $old_default_source = "$one_file.c";
1974 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
1975 if ($old_default_source ne $default_source
1976 && (rule $old_default_source
1977 || rule '$(srcdir)/' . $old_default_source
1978 || rule '${srcdir}/' . $old_default_source
1979 || -f $old_default_source))
1981 my $loc = $where->clone;
1983 msg ('obsolete', $loc,
1984 "the default source for `$unxformed' has been changed "
1985 . "to `$default_source'.\n(Using `$old_default_source' for "
1986 . "backward compatibility.)");
1987 $default_source = $old_default_source;
1989 # If a rule exists to build this source with a $(srcdir)
1990 # prefix, use that prefix in our variables too. This is for
1991 # the sake of BSD Make.
1992 if (rule '$(srcdir)/' . $default_source
1993 || rule '${srcdir}/' . $default_source)
1995 $default_source = '$(srcdir)/' . $default_source;
1998 &define_variable ($one_file . "_SOURCES", $default_source, $where);
1999 push (@sources, $default_source);
2000 push (@dist_sources, $default_source);
2004 handle_single_transform ($one_file . '_SOURCES',
2005 $one_file . '_SOURCES',
2007 $default_source, %transform);
2008 $linker ||= &resolve_linker (%linkers_used);
2009 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2013 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2014 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2017 # If we want to use `LINK' we must make sure it is defined.
2027 # handle_lib_objects ($XNAME, $VAR)
2028 # ---------------------------------
2029 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2030 # Also, generate _DEPENDENCIES variable if appropriate.
2032 # transformed name of object being built, or empty string if no object
2033 # name of _LDADD/_LIBADD-type variable to examine
2034 # Returns 1 if LIBOBJS seen, 0 otherwise.
2035 sub handle_lib_objects
2037 my ($xname, $varname) = @_;
2039 my $var = var ($varname);
2040 prog_error "handle_lib_objects: `$varname' undefined"
2042 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2043 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2044 my $prefix = $1 || 'AM_';
2046 my $seen_libobjs = 0;
2049 transform_variable_recursively
2050 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2052 # Transformation function, run on each filename.
2054 my ($subvar, $val, $cond, $full_cond) = @_;
2058 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2059 if ($val !~ /^-[lL]/ &&
2060 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2061 # for Libtool libraries or programs. (Actually we are a bit
2062 # laxest here since this code also applies to non-libtool
2063 # libraries or programs, for which -dlopen and -dlopreopen
2064 # are pure non-sence. Diagnosting this doesn't seems very
2065 # important: the developer will quickly get complaints from
2067 $val !~ /^-dl(?:pre)?open$/ &&
2068 # Only get this error once.
2072 # FIXME: should display a stack of nested variables
2073 # as context when $var != $subvar.
2074 err_var ($var, "linker flags such as `$val' belong in "
2075 . "`${prefix}LDFLAGS");
2079 elsif ($val !~ /^\@.*\@$/)
2081 # Assume we have a file of some sort, and output it into the
2082 # dependency variable. Autoconf substitutions are not output;
2083 # rarely is a new dependency substituted into e.g. foo_LDADD
2084 # -- but bad things (e.g. -lX11) are routinely substituted.
2085 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2086 # and handled specially below.
2089 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2091 handle_LIBOBJS ($subvar, $cond, $1);
2095 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2097 handle_ALLOCA ($subvar, $cond, $1);
2106 return $seen_libobjs;
2109 sub handle_LIBOBJS ($$$)
2111 my ($var, $cond, $lt) = @_;
2113 my $myobjext = ($1 ? 'l' : '') . 'o';
2115 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2116 if ! keys %libsources;
2118 foreach my $iter (keys %libsources)
2120 if ($iter =~ /\.[cly]$/)
2122 &saw_extension ($&);
2123 &saw_extension ('.c');
2126 if ($iter =~ /\.h$/)
2128 require_file_with_macro ($cond, $var, FOREIGN, $iter);
2130 elsif ($iter ne 'alloca.c')
2132 my $rewrite = $iter;
2133 $rewrite =~ s/\.c$/.P$myobjext/;
2134 $dep_files{'$(DEPDIR)/' . $rewrite} = 1;
2135 $rewrite = "^" . quotemeta ($iter) . "\$";
2136 # Only require the file if it is not a built source.
2137 my $bs = var ('BUILT_SOURCES');
2138 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2140 require_file_with_macro ($cond, $var, FOREIGN, $iter);
2146 sub handle_ALLOCA ($$$)
2148 my ($var, $cond, $lt) = @_;
2149 my $myobjext = ($lt ? 'l' : '') . 'o';
2151 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2152 $dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
2153 require_file_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2154 &saw_extension ('c');
2157 # Canonicalize the input parameter
2161 $string =~ tr/A-Za-z0-9_\@/_/c;
2165 # Canonicalize a name, and check to make sure the non-canonical name
2166 # is never used. Returns canonical name. Arguments are name and a
2167 # list of suffixes to check for.
2168 sub check_canonical_spelling
2170 my ($name, @suffixes) = @_;
2172 my $xname = &canonicalize ($name);
2173 if ($xname ne $name)
2175 foreach my $xt (@suffixes)
2177 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2187 # Set up the compile suite.
2188 sub handle_compile ()
2191 unless $get_object_extension_was_run;
2194 my $default_includes = '';
2195 if (! option 'nostdinc')
2197 $default_includes = ' -I. -I$(srcdir)';
2199 my $var = var 'CONFIG_HEADER';
2202 foreach my $hdr (split (' ', $var->variable_value))
2204 $default_includes .= ' -I' . dirname ($hdr);
2209 my (@mostly_rms, @dist_rms);
2210 foreach my $item (sort keys %compile_clean_files)
2212 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2214 push (@mostly_rms, "\t-rm -f $item");
2216 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2218 push (@dist_rms, "\t-rm -f $item");
2222 prog_error 'invalid entry in %compile_clean_files';
2226 my ($coms, $vars, $rules) =
2227 &file_contents_internal (1, "$libdir/am/compile.am",
2228 new Automake::Location,
2229 ('DEFAULT_INCLUDES' => $default_includes,
2230 'MOSTLYRMS' => join ("\n", @mostly_rms),
2231 'DISTRMS' => join ("\n", @dist_rms)));
2232 $output_vars .= $vars;
2233 $output_rules .= "$coms$rules";
2235 # Check for automatic de-ANSI-fication.
2236 if (option 'ansi2knr')
2238 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2239 my $ansi2knr_dir = '';
2241 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2242 TRUE, "ANSI2KNR", "U");
2244 # topdir is where ansi2knr should be.
2245 if ($ansi2knr_filename eq 'ansi2knr')
2247 # Only require ansi2knr files if they should appear in
2249 require_file ($ansi2knr_where, FOREIGN,
2250 'ansi2knr.c', 'ansi2knr.1');
2252 # ansi2knr needs to be built before subdirs, so unshift it.
2253 unshift (@all, '$(ANSI2KNR)');
2257 $ansi2knr_dir = dirname ($ansi2knr_filename);
2260 $output_rules .= &file_contents ('ansi2knr',
2261 new Automake::Location,
2262 'ANSI2KNR-DIR' => $ansi2knr_dir);
2269 # Handle libtool rules.
2272 return unless var ('LIBTOOL');
2274 # Libtool requires some files, but only at top level.
2275 # (Starting with Libtool 2.0 we do not have to bother. These
2276 # requirements are done with AC_REQUIRE_AUX_FILE.)
2277 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2278 if $relative_dir eq '.' && ! $libtool_new_api;
2281 foreach my $item (sort keys %libtool_clean_directories)
2283 my $dir = ($item eq '.') ? '' : "$item/";
2284 # .libs is for Unix, _libs for DOS.
2285 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2288 check_user_variables 'LIBTOOLFLAGS';
2290 # Output the libtool compilation rules.
2291 $output_rules .= &file_contents ('libtool',
2292 new Automake::Location,
2293 LTRMS => join ("\n", @libtool_rms));
2296 # handle_programs ()
2297 # ------------------
2298 # Handle C programs.
2301 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2302 'bin', 'sbin', 'libexec', 'pkglib',
2304 return if ! @proglist;
2306 my $seen_global_libobjs =
2307 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2309 foreach my $pair (@proglist)
2311 my ($where, $one_file) = @$pair;
2313 my $seen_libobjs = 0;
2314 my $obj = get_object_extension '.$(OBJEXT)';
2316 # Strip any $(EXEEXT) suffix the user might have added, or this
2317 # will confuse &handle_source_transform and &check_canonical_spelling.
2318 # We'll add $(EXEEXT) back later anyway.
2319 $one_file =~ s/\$\(EXEEXT\)$//;
2321 # Canonicalize names and check for misspellings.
2322 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2323 '_SOURCES', '_OBJECTS',
2326 $where->push_context ("while processing program `$one_file'");
2327 $where->set (INTERNAL->get);
2329 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2330 NONLIBTOOL => 1, LIBTOOL => 0);
2332 if (var ($xname . "_LDADD"))
2334 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2338 # User didn't define prog_LDADD override. So do it.
2339 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2341 # This does a bit too much work. But we need it to
2342 # generate _DEPENDENCIES when appropriate.
2345 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2349 reject_var ($xname . '_LIBADD',
2350 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2352 set_seen ($xname . '_DEPENDENCIES');
2353 set_seen ($xname . '_LDFLAGS');
2355 # Determine program to use for link.
2357 if (var ($xname . '_LINK'))
2359 $xlink = $xname . '_LINK';
2363 $xlink = $linker ? $linker : 'LINK';
2366 # If the resulting program lies into a subdirectory,
2367 # make sure this directory will exist.
2368 my $dirstamp = require_build_directory_maybe ($one_file);
2370 $output_rules .= &file_contents ('program',
2372 PROGRAM => $one_file,
2375 DIRSTAMP => $dirstamp,
2376 EXEEXT => '$(EXEEXT)');
2378 if ($seen_libobjs || $seen_global_libobjs)
2380 if (var ($xname . '_LDADD'))
2382 &check_libobjs_sources ($xname, $xname . '_LDADD');
2384 elsif (var ('LDADD'))
2386 &check_libobjs_sources ($xname, 'LDADD');
2393 # handle_libraries ()
2394 # -------------------
2396 sub handle_libraries
2398 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2399 'lib', 'pkglib', 'noinst', 'check');
2400 return if ! @liblist;
2402 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2407 my $var = rvar ($prefix[0] . '_LIBRARIES');
2408 $var->requires_variables ('library used', 'RANLIB');
2411 &define_variable ('AR', 'ar', INTERNAL);
2412 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2414 foreach my $pair (@liblist)
2416 my ($where, $onelib) = @$pair;
2418 my $seen_libobjs = 0;
2419 # Check that the library fits the standard naming convention.
2420 my $bn = basename ($onelib);
2421 if ($bn !~ /^lib.*\.a$/)
2423 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2424 my $suggestion = dirname ($onelib) . "/$bn";
2425 $suggestion =~ s|^\./||g;
2426 msg ('error-gnu/warn', $where,
2427 "`$onelib' is not a standard library name\n"
2428 . "did you mean `$suggestion'?")
2431 $where->push_context ("while processing library `$onelib'");
2432 $where->set (INTERNAL->get);
2434 my $obj = get_object_extension '.$(OBJEXT)';
2436 # Canonicalize names and check for misspellings.
2437 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2438 '_OBJECTS', '_DEPENDENCIES',
2441 if (! var ($xlib . '_AR'))
2443 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2446 # Generate support for conditional object inclusion in
2448 if (var ($xlib . '_LIBADD'))
2450 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2457 &define_variable ($xlib . "_LIBADD", '', $where);
2460 reject_var ($xlib . '_LDADD',
2461 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2463 # Make sure we at look at this.
2464 set_seen ($xlib . '_DEPENDENCIES');
2466 &handle_source_transform ($xlib, $onelib, $obj, $where,
2467 NONLIBTOOL => 1, LIBTOOL => 0);
2469 # If the resulting library lies into a subdirectory,
2470 # make sure this directory will exist.
2471 my $dirstamp = require_build_directory_maybe ($onelib);
2473 $output_rules .= &file_contents ('library',
2477 DIRSTAMP => $dirstamp);
2481 if (var ($xlib . '_LIBADD'))
2483 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2490 # handle_ltlibraries ()
2491 # ---------------------
2492 # Handle shared libraries.
2493 sub handle_ltlibraries
2495 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2496 'noinst', 'lib', 'pkglib', 'check');
2497 return if ! @liblist;
2499 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2504 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2505 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2510 my %liblocations = (); # Location (in Makefile.am) of each library.
2512 foreach my $key (@prefix)
2514 # Get the installation directory of each library.
2515 (my $dir = $key) =~ s/^nobase_//;
2516 my $var = rvar ($key . '_LTLIBRARIES');
2518 # We reject libraries which are installed in several places
2519 # in the same condition, because we can only specify one
2521 $var->traverse_recursively
2524 my ($var, $val, $cond, $full_cond) = @_;
2525 my $hcond = $full_cond->human;
2526 my $where = $var->rdef ($cond)->location;
2527 # A library cannot be installed in different directory
2528 # in overlapping conditions.
2529 if (exists $instconds{$val})
2532 $instconds{$val}->ambiguous_p ($val, $full_cond);
2536 error ($where, $msg, partial => 1);
2538 my $dirtxt = "installed in `$dir'";
2539 $dirtxt = "built for `$dir'"
2540 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2542 $full_cond->true ? "" : " in condition $hcond";
2544 error ($where, "`$val' should be $dirtxt$dircond ...",
2547 my $hacond = $acond->human;
2548 my $adir = $instdirs{$val}{$acond};
2549 my $adirtxt = "installed in `$adir'";
2550 $adirtxt = "built for `$adir'"
2551 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2552 || $adir eq 'check');
2553 my $adircond = $acond->true ? "" : " in condition $hacond";
2555 my $onlyone = ($dir ne $adir) ?
2556 ("\nLibtool libraries can be built for only one "
2557 . "destination.") : "";
2559 error ($liblocations{$val}{$acond},
2560 "... and should also be $adirtxt$adircond.$onlyone");
2566 $instconds{$val} = new Automake::DisjConditions;
2568 $instdirs{$val}{$full_cond} = $dir;
2569 $liblocations{$val}{$full_cond} = $where;
2570 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2576 skip_ac_subst => 1);
2579 foreach my $pair (@liblist)
2581 my ($where, $onelib) = @$pair;
2583 my $seen_libobjs = 0;
2584 my $obj = get_object_extension '.lo';
2586 # Canonicalize names and check for misspellings.
2587 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2588 '_SOURCES', '_OBJECTS',
2591 # Check that the library fits the standard naming convention.
2592 my $libname_rx = '^lib.*\.la';
2593 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2594 my $ldvar2 = var ('LDFLAGS');
2595 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2596 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2598 # Relax name checking for libtool modules.
2599 $libname_rx = '\.la';
2602 my $bn = basename ($onelib);
2603 if ($bn !~ /$libname_rx$/)
2605 my $type = 'library';
2606 if ($libname_rx eq '\.la')
2608 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2613 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2615 my $suggestion = dirname ($onelib) . "/$bn";
2616 $suggestion =~ s|^\./||g;
2617 msg ('error-gnu/warn', $where,
2618 "`$onelib' is not a standard libtool $type name\n"
2619 . "did you mean `$suggestion'?")
2622 $where->push_context ("while processing Libtool library `$onelib'");
2623 $where->set (INTERNAL->get);
2625 # Make sure we look at these.
2626 set_seen ($xlib . '_LDFLAGS');
2627 set_seen ($xlib . '_DEPENDENCIES');
2629 # Generate support for conditional object inclusion in
2631 if (var ($xlib . '_LIBADD'))
2633 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2640 &define_variable ($xlib . "_LIBADD", '', $where);
2643 reject_var ("${xlib}_LDADD",
2644 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2647 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2648 NONLIBTOOL => 0, LIBTOOL => 1);
2650 # Determine program to use for link.
2652 if (var ($xlib . '_LINK'))
2654 $xlink = $xlib . '_LINK';
2658 $xlink = $linker ? $linker : 'LINK';
2661 my $rpathvar = "am_${xlib}_rpath";
2662 my $rpath = "\$($rpathvar)";
2663 foreach my $rcond ($instconds{$onelib}->conds)
2666 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2667 || $instdirs{$onelib}{$rcond} eq 'noinst'
2668 || $instdirs{$onelib}{$rcond} eq 'check')
2670 # It's an EXTRA_ library, so we can't specify -rpath,
2671 # because we don't know where the library will end up.
2672 # The user probably knows, but generally speaking automake
2673 # doesn't -- and in fact configure could decide
2674 # dynamically between two different locations.
2679 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2683 # If $rcond is true there is only one condition and
2684 # there is no point defining an helper variable.
2689 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2693 # If the resulting library lies into a subdirectory,
2694 # make sure this directory will exist.
2695 my $dirstamp = require_build_directory_maybe ($onelib);
2697 # Remember to cleanup .libs/ in this directory.
2698 my $dirname = dirname $onelib;
2699 $libtool_clean_directories{$dirname} = 1;
2701 $output_rules .= &file_contents ('ltlibrary',
2703 LTLIBRARY => $onelib,
2704 XLTLIBRARY => $xlib,
2707 DIRSTAMP => $dirstamp);
2710 if (var ($xlib . '_LIBADD'))
2712 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2718 # See if any _SOURCES variable were misspelled.
2721 # It is ok if the user sets this particular variable.
2722 set_seen 'AM_LDFLAGS';
2724 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2726 foreach my $var (variables $primary)
2728 my $varname = $var->name;
2729 # A configure variable is always legitimate.
2730 next if exists $configure_vars{$varname};
2732 for my $cond ($var->conditions->conds)
2734 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2735 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2736 . " program or\nlibrary has `$1' as canonic name"
2737 . " (possible typo)")
2738 unless $var->rdef ($cond)->seen;
2748 # NOTE we no longer automatically clean SCRIPTS, because it is
2749 # useful to sometimes distribute scripts verbatim. This happens
2750 # e.g. in Automake itself.
2751 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2752 'bin', 'sbin', 'libexec', 'pkgdata',
2759 ## ------------------------ ##
2760 ## Handling Texinfo files. ##
2761 ## ------------------------ ##
2763 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2764 # &scan_texinfo_file ($FILENAME)
2765 # ------------------------------
2766 # $OUTFILE - name of the info file produced by $FILENAME.
2767 # $VFILE - name of the version.texi file used (undef if none).
2768 # @CLEAN_FILES - list of byproducts (indexes etc.)
2769 sub scan_texinfo_file ($)
2771 my ($filename) = @_;
2773 # Some of the following extensions are always created, no matter
2774 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2775 # are only created when they are used. We used to scan $FILENAME
2776 # for their use, but that is not enough: they could be used in
2777 # included files. We can't scan included files because we don't
2778 # know the include path. Therefore we always erase these files, no
2779 # matter whether they are used or not.
2781 # (tmp is only created if an @macro is used and a certain e-TeX
2782 # feature is not available.)
2783 my %clean_suffixes =
2784 map { $_ => 1 } (qw(aux log toc tmp
2790 pg pgs)); # grep 'new.*index' texinfo.tex
2792 my $texi = new Automake::XFile "< $filename";
2793 verb "reading $filename";
2795 my ($outfile, $vfile);
2796 while ($_ = $texi->getline)
2798 if (/^\@setfilename +(\S+)/)
2800 # Honor only the first @setfilename. (It's possible to have
2801 # more occurrences later if the manual shows examples of how
2802 # to use @setfilename...)
2806 if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
2808 error ("$filename:$.",
2809 "output `$outfile' has unrecognized extension");
2813 # A "version.texi" file is actually any file whose name matches
2815 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2820 # Try to find new or unused indexes.
2822 # Creating a new category of index.
2823 elsif (/^\@def(code)?index (\w+)/)
2825 $clean_suffixes{$2} = 1;
2826 $clean_suffixes{"$2s"} = 1;
2829 # Merging an index into an another.
2830 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2832 delete $clean_suffixes{"$2s"};
2833 $clean_suffixes{"$3s"} = 1;
2840 err_am "`$filename' missing \@setfilename";
2844 my $infobase = basename ($filename);
2845 $infobase =~ s/\.te?xi(nfo)?$//;
2846 return ($outfile, $vfile,
2847 map { "$infobase.$_" } (sort keys %clean_suffixes));
2851 # ($DIRSTAMP, @CLEAN_FILES)
2852 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2853 # ------------------------------------------------------------------
2854 # SOURCE - the source Texinfo file
2855 # DEST - the destination Info file
2856 # INSRC - wether DEST should be built in the source tree
2857 # DEPENDENCIES - known dependencies
2858 sub output_texinfo_build_rules ($$$@)
2860 my ($source, $dest, $insrc, @deps) = @_;
2862 # Split `a.texi' into `a' and `.texi'.
2863 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2864 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2869 # We can output two kinds of rules: the "generic" rules use Make
2870 # suffix rules and are appropriate when $source and $dest do not lie
2871 # in a sub-directory; the "specific" rules are needed in the other
2874 # The former are output only once (this is not really apparent here,
2875 # but just remember that some logic deeper in Automake will not
2876 # output the same rule twice); while the later need to be output for
2877 # each Texinfo source.
2880 my $sdir = dirname $source;
2881 if ($sdir eq '.' && dirname ($dest) eq '.')
2884 $makeinfoflags = '-I $(srcdir)';
2889 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2892 # A directory can contain two kinds of info files: some built in the
2893 # source tree, and some built in the build tree. The rules are
2894 # different in each case. However we cannot output two different
2895 # set of generic rules. Because in-source builds are more usual, we
2896 # use generic rules in this case and fall back to "specific" rules
2897 # for build-dir builds. (It should not be a problem to invert this
2899 $generic = 0 unless $insrc;
2901 # We cannot use a suffix rule to build info files with an empty
2902 # extension. Otherwise we would output a single suffix inference
2903 # rule, with separate dependencies, as in
2907 # foo.info: foo.texi
2909 # which confuse Solaris make. (See the Autoconf manual for
2910 # details.) Therefore we use a specific rule in this case. This
2911 # applies to info files only (dvi and pdf files always have an
2913 my $generic_info = ($generic && $dsfx) ? 1 : 0;
2915 # If the resulting file lie into a subdirectory,
2916 # make sure this directory will exist.
2917 my $dirstamp = require_build_directory_maybe ($dest);
2919 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
2921 $output_rules .= file_contents ('texibuild',
2922 new Automake::Location,
2924 DEST_PREFIX => $dpfx,
2925 DEST_INFO_PREFIX => $dipfx,
2926 DEST_SUFFIX => $dsfx,
2927 DIRSTAMP => $dirstamp,
2928 GENERIC => $generic,
2929 GENERIC_INFO => $generic_info,
2931 MAKEINFOFLAGS => $makeinfoflags,
2934 SOURCE_INFO => ($generic_info
2936 SOURCE_REAL => $source,
2937 SOURCE_SUFFIX => $ssfx,
2939 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
2944 # handle_texinfo_helper ($info_texinfos)
2945 # --------------------------------------
2946 # Handle all Texinfo source; helper for handle_texinfo.
2947 sub handle_texinfo_helper ($)
2949 my ($info_texinfos) = @_;
2950 my (@infobase, @info_deps_list, @texi_deps);
2955 # Build a regex matching user-cleaned files.
2956 my $d = var 'DISTCLEANFILES';
2957 my $c = var 'CLEANFILES';
2959 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
2960 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
2961 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
2962 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
2965 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
2967 my $infobase = $texi;
2968 $infobase =~ s/\.(txi|texinfo|texi)$//;
2970 if ($infobase eq $texi)
2972 # FIXME: report line number.
2973 err_am "texinfo file `$texi' has unrecognized extension";
2977 push @infobase, $infobase;
2979 # If 'version.texi' is referenced by input file, then include
2980 # automatic versioning capability.
2981 my ($out_file, $vtexi, @clean_files) =
2982 scan_texinfo_file ("$relative_dir/$texi")
2984 push (@texi_cleans, @clean_files);
2986 # If the Texinfo source is in a subdirectory, create the
2987 # resulting info in this subdirectory. If it is in the current
2988 # directory, try hard to not prefix "./" because it breaks the
2990 my $outdir = dirname ($texi) . '/';
2991 $outdir = "" if $outdir eq './';
2992 $out_file = $outdir . $out_file;
2994 # Until Automake 1.6.3, .info files were built in the
2995 # source tree. This was an obstacle to the support of
2996 # non-distributed .info files, and non-distributed .texi
2999 # * Non-distributed .texi files is important in some packages
3000 # where .texi files are built at make time, probably using
3001 # other binaries built in the package itself, maybe using
3002 # tools or information found on the build host. Because
3003 # these files are not distributed they are always rebuilt
3004 # at make time; they should therefore not lie in the source
3005 # directory. One plan was to support this using
3006 # nodist_info_TEXINFOS or something similar. (Doing this
3007 # requires some sanity checks. For instance Automake should
3009 # dist_info_TEXINFO = foo.texi
3010 # nodist_foo_TEXINFO = included.texi
3011 # because a distributed file should never depend on a
3012 # non-distributed file.)
3014 # * If .texi files are not distributed, then .info files should
3015 # not be distributed either. There are also cases where one
3016 # want to distribute .texi files, but do not want to
3017 # distribute the .info files. For instance the Texinfo package
3018 # distributes the tool used to build these files; it would
3019 # be a waste of space to distribute them. It's not clear
3020 # which syntax we should use to indicate that .info files should
3021 # not be distributed. Akim Demaille suggested that eventually
3022 # we switch to a new syntax:
3023 # | Maybe we should take some inspiration from what's already
3024 # | done in the rest of Automake. Maybe there is too much
3025 # | syntactic sugar here, and you want
3026 # | nodist_INFO = bar.info
3027 # | dist_bar_info_SOURCES = bar.texi
3028 # | bar_texi_DEPENDENCIES = foo.texi
3029 # | with a bit of magic to have bar.info represent the whole
3030 # | bar*info set. That's a lot more verbose that the current
3031 # | situation, but it is # not new, hence the user has less
3034 # | But there is still too much room for meaningless specs:
3035 # | nodist_INFO = bar.info
3036 # | dist_bar_info_SOURCES = bar.texi
3037 # | dist_PS = bar.ps something-written-by-hand.ps
3038 # | nodist_bar_ps_SOURCES = bar.texi
3039 # | bar_texi_DEPENDENCIES = foo.texi
3040 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3042 # Back to the point, it should be clear that in order to support
3043 # non-distributed .info files, we need to build them in the
3044 # build tree, not in the source tree (non-distributed .texi
3045 # files are less of a problem, because we do not output build
3046 # rules for them). In Automake 1.7 .info build rules have been
3047 # largely cleaned up so that .info files get always build in the
3048 # build tree, even when distributed. The idea was that
3049 # (1) if during a VPATH build the .info file was found to be
3050 # absent or out-of-date (in the source tree or in the
3051 # build tree), Make would rebuild it in the build tree.
3052 # If an up-to-date source-tree of the .info file existed,
3053 # make would not rebuild it in the build tree.
3054 # (2) having two copies of .info files, one in the source tree
3055 # and one (newer) in the build tree is not a problem
3056 # because `make dist' always pick files in the build tree
3058 # However it turned out the be a bad idea for several reasons:
3059 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3060 # like GNU Make on point (1) above. These implementations
3061 # of Make would always rebuild .info files in the build
3062 # tree, even if such files were up to date in the source
3063 # tree. Consequently, it was impossible to perform a VPATH
3064 # build of a package containing Texinfo files using these
3065 # Make implementations.
3066 # (Refer to the Autoconf Manual, section "Limitation of
3067 # Make", paragraph "VPATH", item "target lookup", for
3068 # an account of the differences between these
3070 # * The GNU Coding Standards require these files to be built
3071 # in the source-tree (when they are distributed, that is).
3072 # * Keeping a fresher copy of distributed files in the
3073 # build tree can be annoying during development because
3074 # - if the files is kept under CVS, you really want it
3075 # to be updated in the source tree
3076 # - it is confusing that `make distclean' does not erase
3077 # all files in the build tree.
3079 # Consequently, starting with Automake 1.8, .info files are
3080 # built in the source tree again. Because we still plan to
3081 # support non-distributed .info files at some point, we
3082 # have a single variable ($INSRC) that controls whether
3083 # the current .info file must be built in the source tree
3084 # or in the build tree. Actually this variable is switched
3085 # off for .info files that appear to be cleaned; this is
3086 # for backward compatibility with package such as Texinfo,
3087 # which do things like
3088 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3089 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3090 # # Do not create info files for distribution.
3092 # in order not to distribute .info files.
3093 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3095 my $soutdir = '$(srcdir)/' . $outdir;
3096 $outdir = $soutdir if $insrc;
3098 # If user specified file_TEXINFOS, then use that as explicit
3101 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3103 my $canonical = canonicalize ($infobase);
3104 if (var ($canonical . "_TEXINFOS"))
3106 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3107 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3110 my ($dirstamp, @cfiles) =
3111 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3112 push (@texi_cleans, @cfiles);
3114 push (@info_deps_list, $out_file);
3116 # If a vers*.texi file is needed, emit the rule.
3119 err_am ("`$vtexi', included in `$texi', "
3120 . "also included in `$versions{$vtexi}'")
3121 if defined $versions{$vtexi};
3122 $versions{$vtexi} = $texi;
3124 # We number the stamp-vti files. This is doable since the
3125 # actual names don't matter much. We only number starting
3126 # with the second one, so that the common case looks nice.
3127 my $vti = ($done ? $done : 'vti');
3130 # This is ugly, but it is our historical practice.
3131 if ($config_aux_dir_set_in_configure_ac)
3133 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3138 require_file_with_macro (TRUE, 'info_TEXINFOS',
3139 FOREIGN, 'mdate-sh');
3143 if ($config_aux_dir_set_in_configure_ac)
3145 $conf_dir = "$am_config_aux_dir/";
3149 $conf_dir = '$(srcdir)/';
3151 $output_rules .= file_contents ('texi-vers',
3152 new Automake::Location,
3155 STAMPVTI => "${soutdir}stamp-$vti",
3156 VTEXI => "$soutdir$vtexi",
3158 DIRSTAMP => $dirstamp);
3162 # Handle location of texinfo.tex.
3163 my $need_texi_file = 0;
3165 if (var ('TEXINFO_TEX'))
3167 # The user defined TEXINFO_TEX so assume he knows what he is
3169 $texinfodir = ('$(srcdir)/'
3170 . dirname (variable_value ('TEXINFO_TEX')));
3172 elsif (option 'cygnus')
3174 $texinfodir = '$(top_srcdir)/../texinfo';
3175 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3177 elsif ($config_aux_dir_set_in_configure_ac)
3179 $texinfodir = $am_config_aux_dir;
3180 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3181 $need_texi_file = 2; # so that we require_conf_file later
3185 $texinfodir = '$(srcdir)';
3186 $need_texi_file = 1;
3188 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3190 push (@dist_targets, 'dist-info');
3192 if (! option 'no-installinfo')
3194 # Make sure documentation is made and installed first. Use
3195 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3196 # get run twice during "make all".
3197 unshift (@all, '$(INFO_DEPS)');
3200 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3201 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3202 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3203 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3205 # This next isn't strictly needed now -- the places that look here
3206 # could easily be changed to look in info_TEXINFOS. But this is
3207 # probably better, in case noinst_TEXINFOS is ever supported.
3208 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3210 # Do some error checking. Note that this file is not required
3211 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3213 if ($need_texi_file && ! option 'no-texinfo.tex')
3215 if ($need_texi_file > 1)
3217 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3222 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3227 return makefile_wrap ("", "\t ", @texi_cleans);
3233 # Handle all Texinfo source.
3234 sub handle_texinfo ()
3236 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3237 # FIXME: I think this is an obsolete future feature name.
3238 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3240 my $info_texinfos = var ('info_TEXINFOS');
3244 $texiclean = handle_texinfo_helper ($info_texinfos);
3246 $output_rules .= file_contents ('texinfos',
3247 new Automake::Location,
3248 TEXICLEAN => $texiclean,
3249 'LOCAL-TEXIS' => !!$info_texinfos);
3253 # Handle any man pages.
3254 sub handle_man_pages
3256 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3258 # Find all the sections in use. We do this by first looking for
3259 # "standard" sections, and then looking for any additional
3260 # sections used in man_MANS.
3261 my (%sections, %vlist);
3262 # We handle nodist_ for uniformity. man pages aren't distributed
3263 # by default so it isn't actually very important.
3264 foreach my $pfx ('', 'dist_', 'nodist_')
3266 # Add more sections as needed.
3267 foreach my $section ('0'..'9', 'n', 'l')
3269 my $varname = $pfx . 'man' . $section . '_MANS';
3272 $sections{$section} = 1;
3273 $varname = '$(' . $varname . ')';
3274 $vlist{$varname} = 1;
3276 &push_dist_common ($varname)
3281 my $varname = $pfx . 'man_MANS';
3282 my $var = var ($varname);
3285 foreach ($var->value_as_list_recursive)
3287 # A page like `foo.1c' goes into man1dir.
3288 if (/\.([0-9a-z])([a-z]*)$/)
3294 $varname = '$(' . $varname . ')';
3295 $vlist{$varname} = 1;
3296 &push_dist_common ($varname)
3301 return unless %sections;
3303 # Now for each section, generate an install and uninstall rule.
3304 # Sort sections so output is deterministic.
3305 foreach my $section (sort keys %sections)
3307 $output_rules .= &file_contents ('mans',
3308 new Automake::Location,
3309 SECTION => $section);
3312 my @mans = sort keys %vlist;
3313 $output_vars .= file_contents ('mans-vars',
3314 new Automake::Location,
3317 push (@all, '$(MANS)')
3318 unless option 'no-installman';
3321 # Handle DATA variables.
3324 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3325 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3326 'sysconf', 'sharedstate', 'localstate',
3327 'pkgdata', 'lisp', 'noinst', 'check');
3335 if (var ('SUBDIRS'))
3337 $output_rules .= ("tags-recursive:\n"
3338 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3339 # Never fail here if a subdir fails; it
3341 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3342 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3344 push (@tag_deps, 'tags-recursive');
3345 &depend ('.PHONY', 'tags-recursive');
3347 $output_rules .= ("ctags-recursive:\n"
3348 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3349 # Never fail here if a subdir fails; it
3351 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3352 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3354 push (@ctag_deps, 'ctags-recursive');
3355 &depend ('.PHONY', 'ctags-recursive');
3358 if (&saw_sources_p (1)
3359 || var ('ETAGS_ARGS')
3363 foreach my $spec (@config_headers)
3365 my ($out, @ins) = split_config_file_spec ($spec);
3366 foreach my $in (@ins)
3368 # If the config header source is in this directory,
3370 push @config, basename ($in)
3371 if $relative_dir eq dirname ($in);
3374 $output_rules .= &file_contents ('tags',
3375 new Automake::Location,
3376 CONFIG => "@config",
3377 TAGSDIRS => "@tag_deps",
3378 CTAGSDIRS => "@ctag_deps");
3380 set_seen 'TAGS_DEPENDENCIES';
3382 elsif (reject_var ('TAGS_DEPENDENCIES',
3383 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3384 . "without\nsources or `ETAGS_ARGS'"))
3389 # Every Makefile must define some sort of TAGS rule.
3390 # Otherwise, it would be possible for a top-level "make TAGS"
3391 # to fail because some subdirectory failed.
3392 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3394 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3398 # Handle multilib support.
3401 if ($seen_multilib && $relative_dir eq '.')
3403 $output_rules .= &file_contents ('multilib', new Automake::Location);
3404 push (@all, 'all-multi');
3409 # user_phony_rule ($NAME)
3410 # -----------------------
3411 # Return false if rule $NAME does not exist. Otherwise,
3412 # declare it as phony, complete its definition (in case it is
3413 # conditional), and return its Automake::Rule instance.
3414 sub user_phony_rule ($)
3417 my $rule = rule $name;
3420 depend ('.PHONY', $name);
3421 # Define $NAME in all condition where it is not already defined,
3422 # so that it is always OK to depend on $NAME.
3423 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3425 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3427 $output_rules .= $c->subst_string . "$name:\n";
3435 # &for_dist_common ($A, $B)
3436 # -------------------------
3437 # Subroutine for &handle_dist: sort files to dist.
3439 # We put README first because it then becomes easier to make a
3440 # Usenet-compliant shar file (in these, README must be first).
3442 # FIXME: do more ordering of files here.
3457 # Handle 'dist' target.
3460 # Substutions for distdit.am
3463 # Define DIST_SUBDIRS. This must always be done, regardless of the
3464 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3465 my $subdirs = var ('SUBDIRS');
3468 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3469 # to all possible directories, and use it. If DIST_SUBDIRS is
3470 # defined, just use it.
3472 # Note that we check DIST_SUBDIRS first on purpose, so that
3473 # we don't call has_conditional_contents for now reason.
3474 # (In the past one project used so many conditional subdirectories
3475 # that calling has_conditional_contents on SUBDIRS caused
3476 # automake to grow to 150Mb -- this should not happen with
3477 # the current implementation of has_conditional_contents,
3478 # but it's more efficient to avoid the call anyway.)
3479 if (var ('DIST_SUBDIRS'))
3482 elsif ($subdirs->has_conditional_contents)
3484 define_pretty_variable
3485 ('DIST_SUBDIRS', TRUE, INTERNAL,
3486 uniq ($subdirs->value_as_list_recursive));
3490 # We always define this because that is what `distclean'
3492 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3497 # The remaining definitions are only required when a dist target is used.
3498 return if option 'no-dist';
3500 # At least one of the archive formats must be enabled.
3501 if ($relative_dir eq '.')
3503 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3504 $archive_defined ||=
3505 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3506 error (option 'no-dist-gzip',
3507 "no-dist-gzip specified but no dist-* specified, "
3508 . "at least one archive format must be enabled")
3509 unless $archive_defined;
3512 # Look for common files that should be included in distribution.
3513 # If the aux dir is set, and it does not have a Makefile.am, then
3514 # we check for these files there as well.
3516 if ($relative_dir eq '.'
3517 && $config_aux_dir_set_in_configure_ac)
3519 if (! &is_make_dir ($config_aux_dir))
3524 foreach my $cfile (@common_files)
3526 if (dir_has_case_matching_file ($relative_dir, $cfile)
3527 # The file might be absent, but if it can be built it's ok.
3530 &push_dist_common ($cfile);
3533 # Don't use `elsif' here because a file might meaningfully
3534 # appear in both directories.
3535 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3537 &push_dist_common ("$config_aux_dir/$cfile")
3541 # We might copy elements from $configure_dist_common to
3542 # %dist_common if we think we need to. If the file appears in our
3543 # directory, we would have discovered it already, so we don't
3544 # check that. But if the file is in a subdir without a Makefile,
3545 # we want to distribute it here if we are doing `.'. Ugly!
3546 if ($relative_dir eq '.')
3548 foreach my $file (split (' ' , $configure_dist_common))
3550 push_dist_common ($file)
3551 unless is_make_dir (dirname ($file));
3555 # Files to distributed. Don't use ->value_as_list_recursive
3556 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3557 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3558 @dist_common = uniq (sort for_dist_common (@dist_common));
3559 variable_delete 'DIST_COMMON';
3560 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3562 # Now that we've processed DIST_COMMON, disallow further attempts
3564 $handle_dist_run = 1;
3566 # Scan EXTRA_DIST to see if we need to distribute anything from a
3567 # subdir. If so, add it to the list. I didn't want to do this
3568 # originally, but there were so many requests that I finally
3570 my $extra_dist = var ('EXTRA_DIST');
3573 # FIXME: This should be fixed to work with conditions. That
3574 # will require only making the entries in %dist_dirs under the
3575 # appropriate condition. This is meaningful if the nature of
3576 # the distribution should depend upon the configure options
3578 foreach ($extra_dist->value_as_list_recursive (skip_ac_subst => 1))
3580 next unless s,/+[^/]+$,,;
3586 # We have to check DIST_COMMON for extra directories in case the
3587 # user put a source used in AC_OUTPUT into a subdir.
3588 my $topsrcdir = backname ($relative_dir);
3589 foreach (rvar ('DIST_COMMON')->value_as_list_recursive (skip_ac_subst => 1))
3591 s/\$\(top_srcdir\)/$topsrcdir/;
3593 # Strip any leading `./'.
3595 next unless s,/+[^/]+$,,;
3600 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3601 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3603 # Prepend $(distdir) to each directory given.
3604 my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
3605 $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
3607 # If the target `dist-hook' exists, make sure it is run. This
3608 # allows users to do random weird things to the distribution
3609 # before it is packaged up.
3610 push (@dist_targets, 'dist-hook')
3611 if user_phony_rule 'dist-hook';
3612 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3614 my $flm = option ('filename-length-max');
3615 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3617 $output_rules .= &file_contents ('distdir',
3618 new Automake::Location,
3620 FILENAME_FILTER => $filename_filter);
3624 # check_directory ($NAME, $WHERE)
3625 # -------------------------------
3626 # Ensure $NAME is a directory, and that it uses sane name.
3627 # Use $WHERE as a location in the diagnostic, if any.
3628 sub check_directory ($$)
3630 my ($dir, $where) = @_;
3632 error $where, "required directory $relative_dir/$dir does not exist"
3633 unless -d "$relative_dir/$dir";
3635 # If an `obj/' directory exists, BSD make will enter it before
3636 # reading `Makefile'. Hence the `Makefile' in the current directory
3642 # % cat obj/Makefile
3648 # % pmake # BSD make
3651 msg ('portability', $where,
3652 "naming a subdirectory `obj' causes troubles with BSD make")
3655 # `aux' is probably the most important of the following forbidden name,
3656 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3657 msg ('portability', $where,
3658 "name `$dir' is reserved on W32 and DOS platforms")
3659 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3662 # check_directories_in_var ($VARIABLE)
3663 # ------------------------------------
3664 # Recursively check all items in variables $VARIABLE as directories
3665 sub check_directories_in_var ($)
3668 $var->traverse_recursively
3671 my ($var, $val, $cond, $full_cond) = @_;
3672 check_directory ($val, $var->rdef ($cond)->location);
3676 skip_ac_subst => 1);
3679 # &handle_subdirs ()
3680 # ------------------
3681 # Handle subdirectories.
3682 sub handle_subdirs ()
3684 my $subdirs = var ('SUBDIRS');
3688 check_directories_in_var $subdirs;
3690 my $dsubdirs = var ('DIST_SUBDIRS');
3691 check_directories_in_var $dsubdirs
3694 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3695 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3699 # ($REGEN, @DEPENDENCIES)
3702 # If aclocal.m4 creation is automated, return the list of its dependencies.
3703 sub scan_aclocal_m4 ()
3705 my $regen_aclocal = 0;
3707 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3708 set_seen 'CONFIGURE_DEPENDENCIES';
3710 if (-f 'aclocal.m4')
3712 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3714 my $aclocal = new Automake::XFile "< aclocal.m4";
3715 my $line = $aclocal->getline;
3716 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3721 if (set_seen ('ACLOCAL_M4_SOURCES'))
3723 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3724 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3725 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3726 . "It should be safe to simply remove it.");
3729 # Note that it might be possible that aclocal.m4 doesn't exist but
3730 # should be auto-generated. This case probably isn't very
3733 return ($regen_aclocal, @ac_deps);
3737 # Helper function for substitute_ac_subst_variables.
3738 sub substitute_ac_subst_variables_worker($)
3741 return "\@$token\@" if var $token;
3742 return "\${$token\}";
3745 # substitute_ac_subst_variables ($TEXT)
3746 # -------------------------------------
3747 # Replace any occurence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3749 sub substitute_ac_subst_variables ($)
3752 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3757 # &prepend_srcdir (@INPUTS)
3758 # -------------------------
3759 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3760 # if an input file has a directory part the same as the current
3761 # directory, then the directory part is simply replaced by $(srcdir).
3762 # But if the directory part is different, then $(top_srcdir) is
3764 sub prepend_srcdir (@)
3769 foreach my $single (@inputs)
3771 if (dirname ($single) eq $relative_dir)
3773 push (@newinputs, '$(srcdir)/' . basename ($single));
3777 push (@newinputs, '$(top_srcdir)/' . $single);
3784 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3785 # ---------------------------------------------------
3786 # Compute a list of dependencies appropriate for the rebuild
3788 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3789 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3790 sub rewrite_inputs_into_dependencies ($@)
3792 my ($file, @inputs) = @_;
3797 # We cannot create dependencies on shell variables.
3798 next if (substitute_ac_subst_variables $i) =~ /\$/;
3800 if (exists $ac_config_files_location{$i})
3802 my $di = dirname $i;
3803 if ($di eq $relative_dir)
3807 # In the top-level Makefile we do not use $(top_builddir), because
3808 # we are already there, and since the targets are built without
3809 # a $(top_builddir), it helps BSD Make to match them with
3811 elsif ($relative_dir ne '.')
3813 $i = '$(top_builddir)/' . $i;
3818 msg ('error', $ac_config_files_location{$file},
3819 "required file `$i' not found")
3820 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3821 ($i) = prepend_srcdir ($i);
3822 push_dist_common ($i);
3831 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3832 # ------------------------------------------------------------------
3833 # Handle remaking and configure stuff.
3834 # We need the name of the input file, to do proper remaking rules.
3835 sub handle_configure ($$$@)
3837 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3839 prog_error 'empty @inputs'
3842 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3844 my $rel_makefile = basename $makefile;
3846 my $colon_infile = ':' . join (':', @inputs);
3847 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3848 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3849 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3850 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3851 @configure_deps, @aclocal_m4_deps,
3852 '$(top_srcdir)/' . $configure_ac);
3853 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3854 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3855 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3858 $output_rules .= file_contents
3860 new Automake::Location,
3861 MAKEFILE => $rel_makefile,
3862 'MAKEFILE-DEPS' => "@rewritten",
3863 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3864 'MAKEFILE-IN' => $rel_makefile_in,
3865 'MAKEFILE-IN-DEPS' => "@include_stack",
3866 'MAKEFILE-AM' => $rel_makefile_am,
3867 STRICTNESS => global_option 'cygnus'
3868 ? 'cygnus' : $strictness_name,
3869 'USE-DEPS' => global_option 'no-dependencies'
3870 ? ' --ignore-deps' : '',
3871 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3872 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3874 if ($relative_dir eq '.')
3876 &push_dist_common ('acconfig.h')
3880 # If we have a configure header, require it.
3882 my @distclean_config;
3883 foreach my $spec (@config_headers)
3886 # $CONFIG_H_PATH: config.h from top level.
3887 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3888 my $config_h_dir = dirname ($config_h_path);
3890 # If the header is in the current directory we want to build
3891 # the header here. Otherwise, if we're at the topmost
3892 # directory and the header's directory doesn't have a
3893 # Makefile, then we also want to build the header.
3894 if ($relative_dir eq $config_h_dir
3895 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3897 my ($cn_sans_dir, $stamp_dir);
3898 if ($relative_dir eq $config_h_dir)
3900 $cn_sans_dir = basename ($config_h_path);
3905 $cn_sans_dir = $config_h_path;
3906 if ($config_h_dir eq '.')
3912 $stamp_dir = $config_h_dir . '/';
3916 # This will also distribute all inputs.
3917 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
3919 # Cannot define rebuild rules for filenames with shell variables.
3920 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
3922 # Header defined in this directory.
3924 if (-f $config_h_path . '.top')
3926 push (@files, "$cn_sans_dir.top");
3928 if (-f $config_h_path . '.bot')
3930 push (@files, "$cn_sans_dir.bot");
3933 push_dist_common (@files);
3935 # For now, acconfig.h can only appear in the top srcdir.
3936 if (-f 'acconfig.h')
3938 push (@files, '$(top_srcdir)/acconfig.h');
3941 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
3943 file_contents ('remake-hdr',
3944 new Automake::Location,
3946 CONFIG_H => $cn_sans_dir,
3947 CONFIG_HIN => $ins[0],
3948 CONFIG_H_DEPS => "@ins",
3949 CONFIG_H_PATH => $config_h_path,
3952 push @distclean_config, $cn_sans_dir, $stamp;
3956 $output_rules .= file_contents ('clean-hdr',
3957 new Automake::Location,
3958 FILES => "@distclean_config")
3959 if @distclean_config;
3961 # Distribute and define mkinstalldirs only if it is already present
3962 # in the package, for backward compatibility (some people may still
3963 # use $(mkinstalldirs)).
3964 my $mkidpath = "$config_aux_dir/mkinstalldirs";
3967 # Use require_file so that any existing script gets updated
3968 # by --force-missing.
3969 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
3970 define_variable ('mkinstalldirs',
3971 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
3975 # Use $(install_sh), not $(mkdir_p) because the latter requires
3976 # at least one argument, and $(mkinstalldirs) used to work
3977 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
3978 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
3981 reject_var ('CONFIG_HEADER',
3982 "`CONFIG_HEADER' is an anachronism; now determined "
3983 . "automatically\nfrom `$configure_ac'");
3986 foreach my $spec (@config_headers)
3988 my ($out, @ins) = split_config_file_spec ($spec);
3989 # Generate CONFIG_HEADER define.
3990 if ($relative_dir eq dirname ($out))
3992 push @config_h, basename ($out);
3996 push @config_h, "\$(top_builddir)/$out";
3999 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4002 # Now look for other files in this directory which must be remade
4003 # by config.status, and generate rules for them.
4004 my @actual_other_files = ();
4005 foreach my $lfile (@other_input_files)
4009 if ($lfile =~ /^([^:]*):(.*)$/)
4011 # This is the ":" syntax of AC_OUTPUT.
4013 @inputs = split (':', $2);
4019 @inputs = $file . '.in';
4022 # Automake files should not be stored in here, but in %MAKE_LIST.
4023 prog_error ("$lfile in \@other_input_files\n"
4024 . "\@other_input_files = (@other_input_files)")
4025 if -f $file . '.am';
4027 my $local = basename ($file);
4029 # Make sure the dist directory for each input file is created.
4030 # We only have to do this at the topmost level though. This
4031 # is a bit ugly but it easier than spreading out the logic,
4032 # especially in cases like AC_OUTPUT(foo/out:bar/in), where
4033 # there is no Makefile in bar/.
4034 if ($relative_dir eq '.')
4038 $dist_dirs{dirname ($_)} = 1;
4042 # We skip files that aren't in this directory. However, if
4043 # the file's directory does not have a Makefile, and we are
4044 # currently doing `.', then we create a rule to rebuild the
4045 # file in the subdir.
4046 my $fd = dirname ($file);
4047 if ($fd ne $relative_dir)
4049 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4059 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4061 # Cannot output rules for shell variables.
4062 next if (substitute_ac_subst_variables $local) =~ /\$/;
4064 $output_rules .= ($local . ': '
4065 . '$(top_builddir)/config.status '
4066 . "@rewritten_inputs\n"
4068 . 'cd $(top_builddir) && '
4069 . '$(SHELL) ./config.status '
4070 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4073 push (@actual_other_files, $local);
4076 # For links we should clean destinations and distribute sources.
4077 foreach my $spec (@config_links)
4079 my ($link, $file) = split /:/, $spec;
4080 # Some people do AC_CONFIG_LINKS($computed). We only handle
4081 # the DEST:SRC form.
4083 my $where = $ac_config_files_location{$link};
4085 # Skip destinations that contain shell variables.
4086 if ((substitute_ac_subst_variables $link) !~ /\$/)
4088 # We skip links that aren't in this directory. However, if
4089 # the link's directory does not have a Makefile, and we are
4090 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4091 # in `.'s Makefile.in.
4092 my $local = basename ($link);
4093 my $fd = dirname ($link);
4094 if ($fd ne $relative_dir)
4096 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4105 push @actual_other_files, $local if $local;
4108 # Do not process sources that contain shell variables.
4109 if ((substitute_ac_subst_variables $file) !~ /\$/)
4111 my $fd = dirname ($file);
4113 # Make sure the dist directory for each input file is created.
4114 # We only have to do this at the topmost level though.
4115 if ($relative_dir eq '.')
4117 $dist_dirs{$fd} = 1;
4120 # We distribute files that are in this directory.
4121 # At the top-level (`.') we also distribute files whose
4122 # directory does not have a Makefile.
4123 if (($fd eq $relative_dir)
4124 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4126 # The following will distribute $file as a side-effect when
4127 # it is appropriate (i.e., when $file is not already an output).
4128 # We do not need the result, just the side-effect.
4129 rewrite_inputs_into_dependencies ($link, $file);
4134 # These files get removed by "make distclean".
4135 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4136 @actual_other_files);
4142 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4143 'oldinclude', 'pkginclude',
4147 next unless $_->[1] =~ /\..*$/;
4148 &saw_extension ($&);
4154 return if ! $seen_gettext || $relative_dir ne '.';
4156 my $subdirs = var 'SUBDIRS';
4160 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4164 # Perform some sanity checks to help users get the right setup.
4165 # We disable these tests when po/ doesn't exist in order not to disallow
4166 # unusual gettext setups.
4171 # | 1) If a package doesn't have a directory po/ at top level, it
4172 # | will likely have multiple po/ directories in subpackages.
4174 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4175 # | is used without 'external'. It is also useful to warn for the
4176 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4177 # | warnings apply only to the usual layout of packages, therefore
4178 # | they should both be disabled if no po/ directory is found at
4183 my @subdirs = $subdirs->value_as_list_recursive;
4185 msg_var ('syntax', $subdirs,
4186 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4187 if ! grep ($_ eq 'po', @subdirs);
4189 # intl/ is not required when AM_GNU_GETTEXT is called with
4190 # the `external' option.
4191 msg_var ('syntax', $subdirs,
4192 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4193 if (! $seen_gettext_external
4194 && ! grep ($_ eq 'intl', @subdirs));
4196 # intl/ should not be used with AM_GNU_GETTEXT([external])
4197 msg_var ('syntax', $subdirs,
4198 "`intl' should not be in SUBDIRS when "
4199 . "AM_GNU_GETTEXT([external]) is used")
4200 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
4203 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4206 # Handle footer elements.
4209 # NOTE don't use define_pretty_variable here, because
4210 # $contents{...} is already defined.
4211 $output_vars .= 'SOURCES = ' . variable_value ('SOURCES') . "\n\n"
4212 if variable_value ('SOURCES');
4214 reject_rule ('.SUFFIXES',
4215 "use variable `SUFFIXES', not target `.SUFFIXES'");
4217 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4218 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4219 # anything else, by sticking it right after the default: target.
4220 $output_header .= ".SUFFIXES:\n";
4221 my $suffixes = var 'SUFFIXES';
4222 my @suffixes = Automake::Rule::suffixes;
4223 if (@suffixes || $suffixes)
4225 # Make sure SUFFIXES has unique elements. Sort them to ensure
4226 # the output remains consistent. However, $(SUFFIXES) is
4227 # always at the start of the list, unsorted. This is done
4228 # because make will choose rules depending on the ordering of
4229 # suffixes, and this lets the user have some control. Push
4230 # actual suffixes, and not $(SUFFIXES). Some versions of make
4231 # do not like variable substitutions on the .SUFFIXES line.
4232 my @user_suffixes = ($suffixes
4233 ? $suffixes->value_as_list_recursive : ());
4235 my %suffixes = map { $_ => 1 } @suffixes;
4236 delete @suffixes{@user_suffixes};
4238 $output_header .= (".SUFFIXES: "
4239 . join (' ', @user_suffixes, sort keys %suffixes)
4243 $output_trailer .= file_contents ('footer', new Automake::Location);
4247 # Generate `make install' rules.
4248 sub handle_install ()
4250 $output_rules .= &file_contents
4252 new Automake::Location,
4253 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4254 ? (" \$(BUILT_SOURCES)\n"
4255 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4257 'installdirs-local' => (user_phony_rule 'installdirs-local'
4258 ? ' installdirs-local' : ''),
4259 am__installdirs => variable_value ('am__installdirs') || '');
4263 # Deal with all and all-am.
4266 my ($makefile) = @_;
4270 # Put this at the beginning for the sake of non-GNU makes. This
4271 # is still wrong if these makes can run parallel jobs. But it is
4273 unshift (@all, basename ($makefile));
4275 foreach my $spec (@config_headers)
4277 my ($out, @ins) = split_config_file_spec ($spec);
4278 push (@all, basename ($out))
4279 if dirname ($out) eq $relative_dir;
4282 # Install `all' hooks.
4283 push (@all, "all-local")
4284 if user_phony_rule "all-local";
4286 &pretty_print_rule ("all-am:", "\t\t", @all);
4287 &depend ('.PHONY', 'all-am', 'all');
4292 my @local_headers = ();
4293 push @local_headers, '$(BUILT_SOURCES)'
4294 if var ('BUILT_SOURCES');
4295 foreach my $spec (@config_headers)
4297 my ($out, @ins) = split_config_file_spec ($spec);
4298 push @local_headers, basename ($out)
4299 if dirname ($out) eq $relative_dir;
4304 # We need to make sure config.h is built before we recurse.
4305 # We also want to make sure that built sources are built
4306 # before any ordinary `all' targets are run. We can't do this
4307 # by changing the order of dependencies to the "all" because
4308 # that breaks when using parallel makes. Instead we handle
4309 # things explicitly.
4310 $output_all .= ("all: @local_headers"
4312 . '$(MAKE) $(AM_MAKEFLAGS) '
4313 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4318 $output_all .= "all: " . (var ('SUBDIRS')
4319 ? 'all-recursive' : 'all-am') . "\n\n";
4324 # &do_check_merge_target ()
4325 # -------------------------
4326 # Handle check merge target specially.
4327 sub do_check_merge_target ()
4329 # Include user-defined local form of target.
4330 push @check_tests, 'check-local'
4331 if user_phony_rule 'check-local';
4333 # In --cygnus mode, check doesn't depend on all.
4334 if (option 'cygnus')
4336 # Just run the local check rules.
4337 pretty_print_rule ('check-am:', "\t\t", @check);
4341 # The check target must depend on the local equivalent of
4342 # `all', to ensure all the primary targets are built. Then it
4343 # must build the local check rules.
4344 $output_rules .= "check-am: all-am\n";
4345 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4349 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4353 depend '.PHONY', 'check', 'check-am';
4354 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4355 $output_rules .= ("check: "
4356 . (var ('BUILT_SOURCES')
4357 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4359 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4363 # handle_clean ($MAKEFILE)
4364 # ------------------------
4365 # Handle all 'clean' targets.
4366 sub handle_clean ($)
4368 my ($makefile) = @_;
4370 # Clean the files listed in user variables if they exist.
4371 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4372 if var ('MOSTLYCLEANFILES');
4373 $clean_files{'$(CLEANFILES)'} = CLEAN
4374 if var ('CLEANFILES');
4375 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4376 if var ('DISTCLEANFILES');
4377 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4378 if var ('MAINTAINERCLEANFILES');
4380 # Built sources are automatically removed by maintainer-clean.
4381 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4382 if var ('BUILT_SOURCES');
4384 # Compute a list of "rm"s to run for each target.
4385 my %rms = (MOSTLY_CLEAN, [],
4388 MAINTAINER_CLEAN, []);
4390 foreach my $file (keys %clean_files)
4392 my $when = $clean_files{$file};
4393 prog_error 'invalid entry in %clean_files'
4394 unless exists $rms{$when};
4396 my $rm = "rm -f $file";
4397 # If file is a variable, make sure when don't call `rm -f' without args.
4398 $rm ="test -z \"$file\" || $rm"
4399 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4401 push @{$rms{$when}}, "\t-$rm\n";
4404 $output_rules .= &file_contents
4406 new Automake::Location,
4407 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4408 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4409 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4410 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4411 MAKEFILE => basename $makefile,
4416 # &target_cmp ($A, $B)
4417 # --------------------
4418 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4419 # other `.TARGETS' be last.
4422 return 0 if $a eq $b;
4424 my $a1 = substr ($a, 0, 1);
4425 my $b1 = substr ($b, 0, 1);
4428 return -1 if $b1 eq '.';
4429 return 1 if $a1 eq '.';
4435 # &handle_factored_dependencies ()
4436 # --------------------------------
4437 # Handle everything related to gathered targets.
4438 sub handle_factored_dependencies
4441 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4442 'uninstall-exec-local', 'uninstall-exec-hook',
4443 'uninstall-dvi-local',
4444 'uninstall-html-local',
4445 'uninstall-info-local',
4446 'uninstall-pdf-local',
4447 'uninstall-ps-local')
4451 reject_rule ($utarg, "use `$x', not `$utarg'");
4454 reject_rule ('install-local',
4455 "use `install-data-local' or `install-exec-local', "
4456 . "not `install-local'");
4458 # Install the -local hooks.
4459 foreach (keys %dependencies)
4461 # Hooks are installed on the -am targets.
4463 depend ("$_-am", "$_-local")
4464 if user_phony_rule "$_-local";
4467 # Install the -hook hooks.
4468 # FIXME: Why not be as liberal as we are with -local hooks?
4469 foreach ('install-exec', 'install-data', 'uninstall')
4471 if (user_phony_rule "$_-hook")
4473 $actions{"$_-am"} .=
4474 ("\t\@\$(NORMAL_INSTALL)\n"
4475 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4476 depend ('.MAKE', "$_-am");
4480 # All the required targets are phony.
4481 depend ('.PHONY', keys %required_targets);
4483 # Actually output gathered targets.
4484 foreach (sort target_cmp keys %dependencies)
4486 # If there is nothing about this guy, skip it.
4488 unless (@{$dependencies{$_}}
4490 || $required_targets{$_});
4492 # Define gathered targets in undefined conditions.
4493 # FIXME: Right now we must handle .PHONY as an exception,
4494 # because people write things like
4495 # .PHONY: myphonytarget
4496 # to append dependencies. This would not work if Automake
4497 # refrained from defining its own .PHONY target as it does
4498 # with other overridden targets.
4499 # Likewise for `.MAKE'.
4500 my @undefined_conds = (TRUE,);
4501 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4504 Automake::Rule::define ($_, 'internal',
4505 RULE_AUTOMAKE, TRUE, INTERNAL);
4507 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4508 foreach my $cond (@undefined_conds)
4510 my $condstr = $cond->subst_string;
4511 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4512 $output_rules .= $actions{$_} if defined $actions{$_};
4513 $output_rules .= "\n";
4519 # &handle_tests_dejagnu ()
4520 # ------------------------
4521 sub handle_tests_dejagnu
4523 push (@check_tests, 'check-DEJAGNU');
4524 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4528 # Handle TESTS variable and other checks.
4531 if (option 'dejagnu')
4533 &handle_tests_dejagnu;
4537 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4539 reject_var ($c, "`$c' defined but `dejagnu' not in "
4540 . "`AUTOMAKE_OPTIONS'");
4546 push (@check_tests, 'check-TESTS');
4547 $output_rules .= &file_contents ('check', new Automake::Location);
4551 # Handle Emacs Lisp.
4552 sub handle_emacs_lisp
4554 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4557 return if ! @elfiles;
4559 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4560 map { $_->[1] } @elfiles);
4561 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4562 '$(am__ELFILES:.el=.elc)');
4563 # This one can be overridden by users.
4564 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4566 push @all, '$(ELCFILES)';
4568 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4569 'EMACS', 'lispdir');
4570 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4571 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4577 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4579 return if ! @pyfiles;
4581 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4582 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4583 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4589 my @sourcelist = &am_install_var ('-candist',
4591 'java', 'noinst', 'check');
4592 return if ! @sourcelist;
4594 my @prefix = am_primary_prefixes ('JAVA', 1,
4595 'java', 'noinst', 'check');
4598 foreach my $curs (@prefix)
4601 if $curs eq 'EXTRA';
4603 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4609 push (@all, 'class' . $dir . '.stamp');
4613 # Handle some of the minor options.
4614 sub handle_minor_options
4616 if (option 'readme-alpha')
4618 if ($relative_dir eq '.')
4620 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4622 msg ('error-gnits', $package_version_location,
4623 "version `$package_version' doesn't follow " .
4626 if (defined $1 && -f 'README-alpha')
4628 # This means we have an alpha release. See
4629 # GNITS_VERSION_PATTERN for details.
4630 push_dist_common ('README-alpha');
4636 ################################################################
4638 # ($OUTPUT, @INPUTS)
4639 # &split_config_file_spec ($SPEC)
4640 # -------------------------------
4641 # Decode the Autoconf syntax for config files (files, headers, links
4643 sub split_config_file_spec ($)
4646 my ($output, @inputs) = split (/:/, $spec);
4648 push @inputs, "$output.in"
4651 return ($output, @inputs);
4655 # locate_am (@POSSIBLE_SOURCES)
4656 # -----------------------------
4657 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4658 # This functions returns the first *.in file for which a *.am exists.
4659 # It returns undef otherwise.
4664 foreach my $file (@rest)
4666 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4677 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4678 # ---------------------------------------------------
4679 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4681 sub scan_autoconf_config_files ($$)
4683 my ($where, $config_files) = @_;
4685 # Look at potential Makefile.am's.
4686 foreach (split ' ', $config_files)
4688 # Must skip empty string for Perl 4.
4689 next if $_ eq "\\" || $_ eq '';
4691 # Handle $local:$input syntax.
4692 my ($local, @rest) = split (/:/);
4693 @rest = ("$local.in",) unless @rest;
4694 my $input = locate_am @rest;
4697 # We have a file that automake should generate.
4698 $make_list{$input} = join (':', ($local, @rest));
4702 # We have a file that automake should cause to be
4703 # rebuilt, but shouldn't generate itself.
4704 push (@other_input_files, $_);
4706 $ac_config_files_location{$local} = $where;
4711 # &scan_autoconf_traces ($FILENAME)
4712 # ---------------------------------
4713 sub scan_autoconf_traces ($)
4715 my ($filename) = @_;
4717 # Macros to trace, with their minimal number of arguments.
4719 # IMPORTANT: If you add a macro here, you should also add this macro
4720 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4722 AC_CANONICAL_BUILD => 0,
4723 AC_CANONICAL_HOST => 0,
4724 AC_CANONICAL_TARGET => 0,
4725 AC_CONFIG_AUX_DIR => 1,
4726 AC_CONFIG_FILES => 1,
4727 AC_CONFIG_HEADERS => 1,
4728 AC_CONFIG_LINKS => 1,
4731 AC_REQUIRE_AUX_FILE => 1,
4733 AM_AUTOMAKE_VERSION => 1,
4734 AM_CONDITIONAL => 2,
4735 AM_ENABLE_MULTILIB => 0,
4736 AM_GNU_GETTEXT => 0,
4737 AM_INIT_AUTOMAKE => 0,
4738 AM_MAINTAINER_MODE => 0,
4739 AM_PROG_CC_C_O => 0,
4740 LT_SUPPORTED_TAG => 1,
4741 _LT_AC_TAGCONFIG => 0,
4747 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4749 # Use a separator unlikely to be used, not `:', the default, which
4750 # has a precise meaning for AC_CONFIG_FILES and so on.
4751 $traces .= join (' ',
4752 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4755 my $tracefh = new Automake::XFile ("$traces $filename |");
4756 verb "reading $traces";
4758 while ($_ = $tracefh->getline)
4761 my ($here, @args) = split (/::/);
4762 my $where = new Automake::Location $here;
4763 my $macro = $args[0];
4765 prog_error ("unrequested trace `$macro'")
4766 unless exists $traced{$macro};
4768 # Skip and diagnose malformed calls.
4769 if ($#args < $traced{$macro})
4771 msg ('syntax', $where, "not enough arguments for $macro");
4775 # Alphabetical ordering please.
4776 if ($macro eq 'AC_CANONICAL_BUILD')
4778 if ($seen_canonical <= AC_CANONICAL_BUILD)
4780 $seen_canonical = AC_CANONICAL_BUILD;
4781 $canonical_location = $where;
4784 elsif ($macro eq 'AC_CANONICAL_HOST')
4786 if ($seen_canonical <= AC_CANONICAL_HOST)
4788 $seen_canonical = AC_CANONICAL_HOST;
4789 $canonical_location = $where;
4792 elsif ($macro eq 'AC_CANONICAL_TARGET')
4794 $seen_canonical = AC_CANONICAL_TARGET;
4795 $canonical_location = $where;
4797 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4799 if ($seen_init_automake)
4801 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4802 . "AM_INIT_AUTOMAKE...", partial => 1);
4803 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4805 $config_aux_dir = $args[1];
4806 $config_aux_dir_set_in_configure_ac = 1;
4807 $relative_dir = '.';
4808 check_directory ($config_aux_dir, $where);
4810 elsif ($macro eq 'AC_CONFIG_FILES')
4812 # Look at potential Makefile.am's.
4813 scan_autoconf_config_files ($where, $args[1]);
4815 elsif ($macro eq 'AC_CONFIG_HEADERS')
4817 foreach my $spec (split (' ', $args[1]))
4819 my ($dest, @src) = split (':', $spec);
4820 $ac_config_files_location{$dest} = $where;
4821 push @config_headers, $spec;
4824 elsif ($macro eq 'AC_CONFIG_LINKS')
4826 foreach my $spec (split (' ', $args[1]))
4828 my ($dest, $src) = split (':', $spec);
4829 $ac_config_files_location{$dest} = $where;
4830 push @config_links, $spec;
4833 elsif ($macro eq 'AC_INIT')
4835 if (defined $args[2])
4837 $package_version = $args[2];
4838 $package_version_location = $where;
4841 elsif ($macro eq 'AC_LIBSOURCE')
4843 $libsources{$args[1]} = $here;
4845 elsif ($macro eq 'AC_SUBST')
4847 # Just check for alphanumeric in AC_SUBST. If you do
4848 # AC_SUBST(5), then too bad.
4849 $configure_vars{$args[1]} = $where
4850 if $args[1] =~ /^\w+$/;
4852 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4855 "version mismatch. This is Automake $VERSION,\n" .
4856 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4857 "comes from Automake $args[1]. You should recreate\n" .
4858 "aclocal.m4 with aclocal and run automake again.\n",
4859 # $? = 63 is used to indicate version mismatch to missing.
4861 if $VERSION ne $args[1];
4863 $seen_automake_version = 1;
4865 elsif ($macro eq 'AM_CONDITIONAL')
4867 $configure_cond{$args[1]} = $where;
4869 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4871 $seen_multilib = $where;
4873 elsif ($macro eq 'AM_GNU_GETTEXT')
4875 $seen_gettext = $where;
4876 $ac_gettext_location = $where;
4877 $seen_gettext_external = grep ($_ eq 'external', @args);
4879 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4881 $seen_init_automake = $where;
4882 if (defined $args[2])
4884 $package_version = $args[2];
4885 $package_version_location = $where;
4887 elsif (defined $args[1])
4890 if (process_global_option_list ($where,
4891 split (' ', $args[1])));
4894 elsif ($macro eq 'AM_MAINTAINER_MODE')
4896 $seen_maint_mode = $where;
4898 elsif ($macro eq 'AM_PROG_CC_C_O')
4900 $seen_cc_c_o = $where;
4902 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
4904 # Only remember the first time a file is required.
4905 $required_aux_file{$args[1]} = $where
4906 unless exists $required_aux_file{$args[1]};
4908 elsif ($macro eq 'm4_include'
4909 || $macro eq 'm4_sinclude'
4910 || $macro eq 'sinclude')
4912 # Some modified versions of Autoconf don't use
4913 # forzen files. Consequently it's possible that we see all
4914 # m4_include's performed during Autoconf's startup.
4915 # Obviously we don't want to distribute Autoconf's files
4916 # so we skip absolute filenames here.
4917 push @configure_deps, '$(top_srcdir)/' . $args[1]
4918 unless $here =~ m,^(?:\w:)?[\\/],;
4919 # Keep track of the greatest timestamp.
4922 my $mtime = mtime $args[1];
4923 $configure_deps_greatest_timestamp = $mtime
4924 if $mtime > $configure_deps_greatest_timestamp;
4927 elsif ($macro eq 'LT_SUPPORTED_TAG')
4929 $libtool_tags{$args[1]} = 1;
4930 $libtool_new_api = 1;
4932 elsif ($macro eq '_LT_AC_TAGCONFIG')
4934 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
4935 # We use it to detect whether tags are supported. Our
4936 # prefered interface is LT_SUPPORTED_TAG, but it was
4937 # introduced in Libtool 1.6.
4938 if (0 == keys %libtool_tags)
4940 # Hardcode the tags supported by Libtool 1.5.
4941 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
4950 # &scan_autoconf_files ()
4951 # -----------------------
4952 # Check whether we use `configure.ac' or `configure.in'.
4953 # Scan it (and possibly `aclocal.m4') for interesting things.
4954 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
4955 sub scan_autoconf_files ()
4957 # Reinitialize libsources here. This isn't really necessary,
4958 # since we currently assume there is only one configure.ac. But
4959 # that won't always be the case.
4962 # Keep track of the youngest configure dependency.
4963 $configure_deps_greatest_timestamp = mtime $configure_ac;
4964 if (-e 'aclocal.m4')
4966 my $mtime = mtime 'aclocal.m4';
4967 $configure_deps_greatest_timestamp = $mtime
4968 if $mtime > $configure_deps_greatest_timestamp;
4971 scan_autoconf_traces ($configure_ac);
4973 @configure_input_files = sort keys %make_list;
4974 # Set input and output files if not specified by user.
4977 @input_files = @configure_input_files;
4978 %output_files = %make_list;
4982 if (! $seen_init_automake)
4984 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
4985 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
4986 . "\nthat aclocal.m4 is present in the top-level directory,\n"
4987 . "and that aclocal.m4 was recently regenerated "
4988 . "(using aclocal).");
4992 if (! $seen_automake_version)
4994 if (-f 'aclocal.m4')
4996 error ($seen_init_automake,
4997 "your implementation of AM_INIT_AUTOMAKE comes from " .
4998 "an\nold Automake version. You should recreate " .
4999 "aclocal.m4\nwith aclocal and run automake again.\n",
5000 # $? = 63 is used to indicate version mismatch to missing.
5005 error ($seen_init_automake,
5006 "no proper implementation of AM_INIT_AUTOMAKE was " .
5007 "found,\nprobably because aclocal.m4 is missing...\n" .
5008 "You should run aclocal to create this file, then\n" .
5009 "run automake again.\n");
5016 # Reorder @input_files so that the Makefile that distributes aux
5017 # files is processed last. This is important because each directory
5018 # can require auxiliary scripts and we should wait until they have
5019 # been installed before distributing them.
5021 # The Makefile.in that distribute the aux files is the one in
5022 # $config_aux_dir or the top-level Makefile.
5023 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5024 my @new_input_files = ();
5025 while (@input_files)
5027 my $in = pop @input_files;
5028 my @ins = split (/:/, $output_files{$in});
5029 if (dirname ($ins[0]) eq $auxdirdist)
5031 push @new_input_files, $in;
5032 $automake_will_process_aux_dir = 1;
5036 unshift @new_input_files, $in;
5039 @input_files = @new_input_files;
5041 # If neither the auxdir/Makefile nor the ./Makefile are generated
5042 # by Automake, we won't distribute the aux files anyway. Assume
5043 # the user know what (s)he does, and pretend we will distribute
5044 # them to disable the error in require_file_internal.
5045 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5047 # Look for some files we need. Always check for these. This
5048 # check must be done for every run, even those where we are only
5049 # looking at a subdir Makefile. We must set relative_dir for
5050 # maybe_push_required_file to work.
5051 $relative_dir = '.';
5052 foreach my $file (keys %required_aux_file)
5054 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5056 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5057 if -f $config_aux_dir . '/install.sh';
5059 # Preserve dist_common for later.
5060 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5064 ################################################################
5066 # Set up for Cygnus mode.
5069 my $cygnus = option 'cygnus';
5070 return unless $cygnus;
5072 set_strictness ('foreign');
5073 set_option ('no-installinfo', $cygnus);
5074 set_option ('no-dependencies', $cygnus);
5075 set_option ('no-dist', $cygnus);
5077 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5078 if !$seen_maint_mode;
5081 # Do any extra checking for GNU standards.
5082 sub check_gnu_standards
5084 if ($relative_dir eq '.')
5086 # In top level (or only) directory.
5087 require_file ("$am_file.am", GNU,
5088 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5090 # Accept one of these three licenses; default to COPYING.
5091 # Make sure we do not overwrite an existing license.
5093 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5101 require_file ("$am_file.am", GNU, 'COPYING')
5105 for my $opt ('no-installman', 'no-installinfo')
5107 msg ('error-gnu', option $opt,
5108 "option `$opt' disallowed by GNU standards")
5113 # Do any extra checking for GNITS standards.
5114 sub check_gnits_standards
5116 if ($relative_dir eq '.')
5118 # In top level (or only) directory.
5119 require_file ("$am_file.am", GNITS, 'THANKS');
5123 ################################################################
5125 # Functions to handle files of each language.
5127 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5128 # simple formula: Return value is LANG_SUBDIR if the resulting object
5129 # file should be in a subdir if the source file is, LANG_PROCESS if
5130 # file is to be dealt with, LANG_IGNORE otherwise.
5132 # Much of the actual processing is handled in
5133 # handle_single_transform. These functions exist so that
5134 # auxiliary information can be recorded for a later cleanup pass.
5135 # Note that the calls to these functions are computed, so don't bother
5136 # searching for their precise names in the source.
5138 # This is just a convenience function that can be used to determine
5139 # when a subdir object should be used.
5142 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5145 # Rewrite a single C source file.
5148 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5150 if (option 'ansi2knr' && $base =~ /_$/)
5152 # FIXME: include line number in error.
5153 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5156 my $r = LANG_PROCESS;
5157 if (option 'subdir-objects')
5160 if ($directory && $directory ne '.')
5162 $base = $directory . '/' . $base;
5164 # libtool is always able to put the object at the proper place,
5165 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5166 err_var ($var, "compiling `$base.c' in subdir requires "
5167 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5168 uniq_scope => US_GLOBAL,
5169 uniq_part => 'AM_PROG_CC_C_O subdir')
5170 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5173 # In this case we already have the directory information, so
5174 # don't add it again.
5175 $de_ansi_files{$base} = '';
5179 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5185 && $have_per_exec_flags
5186 && ! option 'subdir-objects'
5187 && $nonansi_obj ne '.lo')
5189 err_var ($var, "compiling `$base.c' with per-target flags requires "
5190 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5191 uniq_scope => US_GLOBAL,
5192 uniq_part => 'AM_PROG_CC_C_O per-target')
5198 # Rewrite a single C++ source file.
5199 sub lang_cxx_rewrite
5201 return &lang_sub_obj;
5204 # Rewrite a single header file.
5205 sub lang_header_rewrite
5207 # Header files are simply ignored.
5211 # Rewrite a single yacc file.
5212 sub lang_yacc_rewrite
5214 my ($directory, $base, $ext) = @_;
5216 my $r = &lang_sub_obj;
5217 (my $newext = $ext) =~ tr/y/c/;
5218 return ($r, $newext);
5221 # Rewrite a single yacc++ file.
5222 sub lang_yaccxx_rewrite
5224 my ($directory, $base, $ext) = @_;
5226 my $r = &lang_sub_obj;
5227 (my $newext = $ext) =~ tr/y/c/;
5228 return ($r, $newext);
5231 # Rewrite a single lex file.
5232 sub lang_lex_rewrite
5234 my ($directory, $base, $ext) = @_;
5236 my $r = &lang_sub_obj;
5237 (my $newext = $ext) =~ tr/l/c/;
5238 return ($r, $newext);
5241 # Rewrite a single lex++ file.
5242 sub lang_lexxx_rewrite
5244 my ($directory, $base, $ext) = @_;
5246 my $r = &lang_sub_obj;
5247 (my $newext = $ext) =~ tr/l/c/;
5248 return ($r, $newext);
5251 # Rewrite a single assembly file.
5252 sub lang_asm_rewrite
5254 return &lang_sub_obj;
5257 # Rewrite a single preprocessed assembly file.
5258 sub lang_cppasm_rewrite
5260 return &lang_sub_obj;
5263 # Rewrite a single Fortran 77 file.
5264 sub lang_f77_rewrite
5266 return LANG_PROCESS;
5269 # Rewrite a single Fortran file.
5272 return LANG_PROCESS;
5275 # Rewrite a single preprocessed Fortran file.
5276 sub lang_ppfc_rewrite
5278 return LANG_PROCESS;
5281 # Rewrite a single preprocessed Fortran 77 file.
5282 sub lang_ppf77_rewrite
5284 return LANG_PROCESS;
5287 # Rewrite a single ratfor file.
5288 sub lang_ratfor_rewrite
5290 return LANG_PROCESS;
5293 # Rewrite a single Objective C file.
5294 sub lang_objc_rewrite
5296 return &lang_sub_obj;
5299 # Rewrite a single Java file.
5300 sub lang_java_rewrite
5305 # The lang_X_finish functions are called after all source file
5306 # processing is done. Each should handle defining rules for the
5307 # language, etc. A finish function is only called if a source file of
5308 # the appropriate type has been seen.
5312 # Push all libobjs files onto de_ansi_files. We actually only
5313 # push files which exist in the current directory, and which are
5314 # genuine source files.
5315 foreach my $file (keys %libsources)
5317 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5319 $de_ansi_files{$1} = ''
5323 if (option 'ansi2knr' && keys %de_ansi_files)
5325 # Make all _.c files depend on their corresponding .c files.
5327 foreach my $base (sort keys %de_ansi_files)
5329 # Each _.c file must depend on ansi2knr; otherwise it
5330 # might be used in a parallel build before it is built.
5331 # We need to support files in the srcdir and in the build
5332 # dir (because these files might be auto-generated. But
5333 # we can't use $< -- some makes only define $< during a
5335 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5336 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5337 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5338 . '`if test -f $(srcdir)/' . $ansfile
5339 . '; then echo $(srcdir)/' . $ansfile
5340 . '; else echo ' . $ansfile . '; fi` '
5341 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5342 . '| $(ANSI2KNR) > $@'
5343 # If ansi2knr fails then we shouldn't
5344 # create the _.c file
5345 . " || rm -f \$\@\n");
5346 push (@objects, $base . '_.$(OBJEXT)');
5347 push (@objects, $base . '_.lo')
5350 # Explicitly clean the _.c files if they are in a
5351 # subdirectory. (In the current directory they get erased
5352 # by a `rm -f *_.c' rule.)
5353 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5354 if dirname ($base) ne '.';
5357 # Make all _.o (and _.lo) files depend on ansi2knr.
5358 # Use a sneaky little hack to make it print nicely.
5359 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5363 # This is a yacc helper which is called whenever we have decided to
5364 # compile a yacc file.
5365 sub lang_yacc_target_hook
5367 my ($self, $aggregate, $output, $input, %transform) = @_;
5369 my $flag = $aggregate . "_YFLAGS";
5370 my $flagvar = var $flag;
5371 my $YFLAGSvar = var 'YFLAGS';
5372 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5373 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5375 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5376 my $header = $output_base . '.h';
5378 # Found a `-d' that applies to the compilation of this file.
5379 # Add a dependency for the generated header file, and arrange
5380 # for that file to be included in the distribution.
5381 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5382 RULE_AUTOMAKE, TRUE,
5385 my $condstr = $cond->subst_string;
5386 $output_rules .= ("$condstr${header}: $output\n"
5387 # Recover from removal of $header
5388 . "$condstr\t\@if test ! -f \$@; then \\\n"
5389 . "$condstr\t rm -f $output; \\\n"
5390 . "$condstr\t \$(MAKE) $output; \\\n"
5391 . "$condstr\telse :; fi\n");
5393 # Distribute the generated file, unless its .y source was
5394 # listed in a nodist_ variable. (&handle_source_transform
5395 # will set DIST_SOURCE.)
5396 &push_dist_common ($header)
5397 if $transform{'DIST_SOURCE'};
5399 # If the files are built in the build directory, then we want
5400 # to remove them with `make clean'. If they are in srcdir
5401 # they shouldn't be touched. However, we can't determine this
5402 # statically, and the GNU rules say that yacc/lex output files
5403 # should be removed by maintainer-clean. So that's what we
5405 $clean_files{$header} = MAINTAINER_CLEAN;
5407 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5408 # See the comment above for $HEADER.
5409 $clean_files{$output} = MAINTAINER_CLEAN;
5412 # This is a lex helper which is called whenever we have decided to
5413 # compile a lex file.
5414 sub lang_lex_target_hook
5416 my ($self, $aggregate, $output, $input) = @_;
5417 # If the files are built in the build directory, then we want to
5418 # remove them with `make clean'. If they are in srcdir they
5419 # shouldn't be touched. However, we can't determine this
5420 # statically, and the GNU rules say that yacc/lex output files
5421 # should be removed by maintainer-clean. So that's what we do.
5422 $clean_files{$output} = MAINTAINER_CLEAN;
5425 # This is a helper for both lex and yacc.
5426 sub yacc_lex_finish_helper
5428 return if defined $language_scratch{'lex-yacc-done'};
5429 $language_scratch{'lex-yacc-done'} = 1;
5431 # If there is more than one distinct yacc (resp lex) source file
5432 # in a given directory, then the `ylwrap' program is required to
5433 # allow parallel builds to work correctly. FIXME: for now, no
5435 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5436 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5439 sub lang_yacc_finish
5441 return if defined $language_scratch{'yacc-done'};
5442 $language_scratch{'yacc-done'} = 1;
5444 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5446 &yacc_lex_finish_helper
5447 if count_files_for_language ('yacc') > 1;
5453 return if defined $language_scratch{'lex-done'};
5454 $language_scratch{'lex-done'} = 1;
5456 &yacc_lex_finish_helper
5457 if count_files_for_language ('lex') > 1;
5461 # Given a hash table of linker names, pick the name that has the most
5462 # precedence. This is lame, but something has to have global
5463 # knowledge in order to eliminate the conflict. Add more linkers as
5469 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK))
5471 return $l if defined $linkers{$l};
5476 # Called to indicate that an extension was used.
5480 if (! defined $extension_seen{$ext})
5482 $extension_seen{$ext} = 1;
5486 ++$extension_seen{$ext};
5490 # Return the number of files seen for a given language. Knows about
5491 # special cases we care about. FIXME: this is hideous. We need
5492 # something that involves real language objects. For instance yacc
5493 # and yaccxx could both derive from a common yacc class which would
5494 # know about the strange ylwrap requirement. (Or better yet we could
5495 # just not support legacy yacc!)
5496 sub count_files_for_language
5501 if ($name eq 'yacc' || $name eq 'yaccxx')
5503 @names = ('yacc', 'yaccxx');
5505 elsif ($name eq 'lex' || $name eq 'lexxx')
5507 @names = ('lex', 'lexxx');
5515 foreach $name (@names)
5517 my $lang = $languages{$name};
5518 foreach my $ext (@{$lang->extensions})
5520 $r += $extension_seen{$ext}
5521 if defined $extension_seen{$ext};
5528 # Called to ask whether source files have been seen . If HEADERS is 1,
5529 # headers can be included.
5534 # count all the sources
5536 foreach my $val (values %extension_seen)
5543 $count -= count_files_for_language ('header');
5550 # register_language (%ATTRIBUTE)
5551 # ------------------------------
5552 # Register a single language.
5553 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5554 sub register_language (%)
5560 unless defined $option{'ansi'};
5561 $option{'autodep'} = 'no'
5562 unless defined $option{'autodep'};
5563 $option{'linker'} = ''
5564 unless defined $option{'linker'};
5565 $option{'flags'} = []
5566 unless defined $option{'flags'};
5567 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5568 unless defined $option{'output_extensions'};
5569 $option{'nodist_specific'} = 0
5570 unless defined $option{'nodist_specific'};
5572 my $lang = new Language (%option);
5575 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5576 $languages{$lang->name} = $lang;
5578 # Update the pattern of known extensions.
5579 accept_extensions (@{$lang->extensions});
5581 # Upate the $suffix_rule map.
5582 foreach my $suffix (@{$lang->extensions})
5584 foreach my $dest (&{$lang->output_extensions} ($suffix))
5586 register_suffix_rule (INTERNAL, $suffix, $dest);
5591 # derive_suffix ($EXT, $OBJ)
5592 # --------------------------
5593 # This function is used to find a path from a user-specified suffix $EXT
5594 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5595 sub derive_suffix ($$)
5597 my ($source_ext, $obj) = @_;
5599 while (! $extension_map{$source_ext}
5600 && $source_ext ne $obj
5601 && exists $suffix_rules->{$source_ext}
5602 && exists $suffix_rules->{$source_ext}{$obj})
5604 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5611 ################################################################
5613 # Pretty-print something and append to output_rules.
5614 sub pretty_print_rule
5616 $output_rules .= &makefile_wrap (@_);
5620 ################################################################
5623 ## -------------------------------- ##
5624 ## Handling the conditional stack. ##
5625 ## -------------------------------- ##
5629 # make_conditional_string ($NEGATE, $COND)
5630 # ----------------------------------------
5631 sub make_conditional_string ($$)
5633 my ($negate, $cond) = @_;
5634 $cond = "${cond}_TRUE"
5635 unless $cond =~ /^TRUE|FALSE$/;
5636 $cond = Automake::Condition::conditional_negate ($cond)
5643 # cond_stack_if ($NEGATE, $COND, $WHERE)
5644 # --------------------------------------
5645 sub cond_stack_if ($$$)
5647 my ($negate, $cond, $where) = @_;
5649 error $where, "$cond does not appear in AM_CONDITIONAL"
5650 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5652 push (@cond_stack, make_conditional_string ($negate, $cond));
5654 return new Automake::Condition (@cond_stack);
5659 # cond_stack_else ($NEGATE, $COND, $WHERE)
5660 # ----------------------------------------
5661 sub cond_stack_else ($$$)
5663 my ($negate, $cond, $where) = @_;
5667 error $where, "else without if";
5671 $cond_stack[$#cond_stack] =
5672 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5674 # If $COND is given, check against it.
5677 $cond = make_conditional_string ($negate, $cond);
5679 error ($where, "else reminder ($negate$cond) incompatible with "
5680 . "current conditional: $cond_stack[$#cond_stack]")
5681 if $cond_stack[$#cond_stack] ne $cond;
5684 return new Automake::Condition (@cond_stack);
5689 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5690 # -----------------------------------------
5691 sub cond_stack_endif ($$$)
5693 my ($negate, $cond, $where) = @_;
5698 error $where, "endif without if";
5702 # If $COND is given, check against it.
5705 $cond = make_conditional_string ($negate, $cond);
5707 error ($where, "endif reminder ($negate$cond) incompatible with "
5708 . "current conditional: $cond_stack[$#cond_stack]")
5709 if $cond_stack[$#cond_stack] ne $cond;
5714 return new Automake::Condition (@cond_stack);
5721 ## ------------------------ ##
5722 ## Handling the variables. ##
5723 ## ------------------------ ##
5726 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5727 # -----------------------------------------------------
5728 # Like define_variable, but the value is a list, and the variable may
5729 # be defined conditionally. The second argument is the Condition
5730 # under which the value should be defined; this should be the empty
5731 # string to define the variable unconditionally. The third argument
5732 # is a list holding the values to use for the variable. The value is
5733 # pretty printed in the output file.
5734 sub define_pretty_variable ($$$@)
5736 my ($var, $cond, $where, @value) = @_;
5738 if (! vardef ($var, $cond))
5740 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5741 '', $where, VAR_PRETTY);
5742 rvar ($var)->rdef ($cond)->set_seen;
5747 # define_variable ($VAR, $VALUE, $WHERE)
5748 # --------------------------------------
5749 # Define a new Automake Makefile variable VAR to VALUE, but only if
5750 # not already defined.
5751 sub define_variable ($$$)
5753 my ($var, $value, $where) = @_;
5754 define_pretty_variable ($var, TRUE, $where, $value);
5758 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5759 # -----------------------------------------------------------
5760 # Define the $VAR which content is the list of file names composed of
5761 # a @BASENAME and the $EXTENSION.
5762 sub define_files_variable ($\@$$)
5764 my ($var, $basename, $extension, $where) = @_;
5765 define_variable ($var,
5766 join (' ', map { "$_.$extension" } @$basename),
5771 # Like define_variable, but define a variable to be the configure
5772 # substitution by the same name.
5773 sub define_configure_variable ($)
5777 my $pretty = VAR_ASIS;
5778 my $owner = VAR_CONFIGURE;
5780 # Do not output the ANSI2KNR configure variable -- we AC_SUBST
5781 # it in protos.m4, but later redefine it elsewhere. This is
5782 # pretty hacky. We also don't output AMDEPBACKSLASH: it might
5783 # be subst'd by `\', which certainly would not be appreciated by
5785 if ($var eq 'ANSI2KNR' || $var eq 'AMDEPBACKSLASH')
5787 $pretty = VAR_SILENT;
5788 $owner = VAR_AUTOMAKE;
5791 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5792 '', $configure_vars{$var}, $pretty);
5796 # define_compiler_variable ($LANG)
5797 # --------------------------------
5798 # Define a compiler variable. We also handle defining the `LT'
5799 # version of the command when using libtool.
5800 sub define_compiler_variable ($)
5804 my ($var, $value) = ($lang->compiler, $lang->compile);
5805 my $libtool_tag = '';
5806 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5807 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5808 &define_variable ($var, $value, INTERNAL);
5809 &define_variable ("LT$var",
5810 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5811 . "\$(LIBTOOLFLAGS) --mode=compile $value",
5817 # define_linker_variable ($LANG)
5818 # ------------------------------
5819 # Define linker variables.
5820 sub define_linker_variable ($)
5824 my ($var, $value) = ($lang->lder, $lang->ld);
5825 my $libtool_tag = '';
5826 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5827 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5829 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5830 # CCLINK = $(CCLD) blah blah...
5831 &define_variable ($lang->linker,
5833 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5834 . "\$(LIBTOOLFLAGS) --mode=link " : '')
5839 ################################################################
5841 # &check_trailing_slash ($WHERE, $LINE)
5842 # --------------------------------------
5843 # Return 1 iff $LINE ends with a slash.
5844 # Might modify $LINE.
5845 sub check_trailing_slash ($\$)
5847 my ($where, $line) = @_;
5849 # Ignore `##' lines.
5850 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5852 # Catch and fix a common error.
5853 msg "syntax", $where, "whitespace following trailing backslash"
5854 if $$line =~ s/\\\s+\n$/\\\n/;
5856 return $$line =~ /\\$/;
5860 # &read_am_file ($AMFILE, $WHERE)
5861 # -------------------------------
5862 # Read Makefile.am and set up %contents. Simultaneously copy lines
5863 # from Makefile.am into $output_trailer, or define variables as
5864 # appropriate. NOTE we put rules in the trailer section. We want
5865 # user rules to come after our generated stuff.
5866 sub read_am_file ($$)
5868 my ($amfile, $where) = @_;
5870 my $am_file = new Automake::XFile ("< $amfile");
5871 verb "reading $amfile";
5873 # Keep track of the youngest output dependency.
5874 my $mtime = mtime $amfile;
5875 $output_deps_greatest_timestamp = $mtime
5876 if $mtime > $output_deps_greatest_timestamp;
5883 use constant IN_VAR_DEF => 0;
5884 use constant IN_RULE_DEF => 1;
5885 use constant IN_COMMENT => 2;
5886 my $prev_state = IN_RULE_DEF;
5888 while ($_ = $am_file->getline)
5890 $where->set ("$amfile:$.");
5891 if (/$IGNORE_PATTERN/o)
5893 # Merely delete comments beginning with two hashes.
5895 elsif (/$WHITE_PATTERN/o)
5897 error $where, "blank line following trailing backslash"
5899 # Stick a single white line before the incoming macro or rule.
5902 # Flush all comments seen so far.
5905 $output_vars .= $comment;
5909 elsif (/$COMMENT_PATTERN/o)
5911 # Stick comments before the incoming macro or rule. Make
5912 # sure a blank line precedes the first block of comments.
5913 $spacing = "\n" unless $blank;
5915 $comment .= $spacing . $_;
5917 $prev_state = IN_COMMENT;
5923 $saw_bk = check_trailing_slash ($where, $_);
5926 # We save the conditional stack on entry, and then check to make
5927 # sure it is the same on exit. This lets us conditionally include
5929 my @saved_cond_stack = @cond_stack;
5930 my $cond = new Automake::Condition (@cond_stack);
5932 my $last_var_name = '';
5933 my $last_var_type = '';
5934 my $last_var_value = '';
5936 # FIXME: shouldn't use $_ in this loop; it is too big.
5939 $where->set ("$amfile:$.");
5941 # Make sure the line is \n-terminated.
5945 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
5946 # used by users. @MAINT@ is an anachronism now.
5947 $_ =~ s/\@MAINT\@//g
5948 unless $seen_maint_mode;
5950 my $new_saw_bk = check_trailing_slash ($where, $_);
5952 if (/$IGNORE_PATTERN/o)
5954 # Merely delete comments beginning with two hashes.
5956 elsif (/$WHITE_PATTERN/o)
5958 # Stick a single white line before the incoming macro or rule.
5960 error $where, "blank line following trailing backslash"
5963 elsif (/$COMMENT_PATTERN/o)
5965 # Stick comments before the incoming macro or rule.
5966 $comment .= $spacing . $_;
5968 error $where, "comment following trailing backslash"
5969 if $saw_bk && $comment eq '';
5970 $prev_state = IN_COMMENT;
5974 if ($prev_state == IN_RULE_DEF)
5976 my $cond = new Automake::Condition @cond_stack;
5977 $output_trailer .= $cond->subst_string;
5978 $output_trailer .= $_;
5980 elsif ($prev_state == IN_COMMENT)
5982 # If the line doesn't start with a `#', add it.
5983 # We do this because a continued comment like
5987 # is not portable. BSD make doesn't honor
5988 # escaped newlines in comments.
5990 $comment .= $spacing . $_;
5992 else # $prev_state == IN_VAR_DEF
5994 $last_var_value .= ' '
5995 unless $last_var_value =~ /\s$/;
5996 $last_var_value .= $_;
6000 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6001 $last_var_type, $cond,
6002 $last_var_value, $comment,
6003 $last_where, VAR_ASIS)
6005 $comment = $spacing = '';
6010 elsif (/$IF_PATTERN/o)
6012 $cond = cond_stack_if ($1, $2, $where);
6014 elsif (/$ELSE_PATTERN/o)
6016 $cond = cond_stack_else ($1, $2, $where);
6018 elsif (/$ENDIF_PATTERN/o)
6020 $cond = cond_stack_endif ($1, $2, $where);
6023 elsif (/$RULE_PATTERN/o)
6026 $prev_state = IN_RULE_DEF;
6028 # For now we have to output all definitions of user rules
6029 # and can't diagnose duplicates (see the comment in
6030 # rule_define). So we go on and ignore the return value.
6031 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6033 check_variable_expansions ($_, $where);
6035 $output_trailer .= $comment . $spacing;
6036 my $cond = new Automake::Condition @cond_stack;
6037 $output_trailer .= $cond->subst_string;
6038 $output_trailer .= $_;
6039 $comment = $spacing = '';
6041 elsif (/$ASSIGNMENT_PATTERN/o)
6043 # Found a macro definition.
6044 $prev_state = IN_VAR_DEF;
6045 $last_var_name = $1;
6046 $last_var_type = $2;
6047 $last_var_value = $3;
6048 $last_where = $where->clone;
6049 if ($3 ne '' && substr ($3, -1) eq "\\")
6051 # We preserve the `\' because otherwise the long lines
6052 # that are generated will be truncated by broken
6054 $last_var_value = $3 . "\n";
6059 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6060 $last_var_type, $cond,
6061 $last_var_value, $comment,
6062 $last_where, VAR_ASIS)
6064 $comment = $spacing = '';
6067 elsif (/$INCLUDE_PATTERN/o)
6071 if ($path =~ s/^\$\(top_srcdir\)\///)
6073 push (@include_stack, "\$\(top_srcdir\)/$path");
6074 # Distribute any included file.
6076 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6077 # otherwise OSF make will implicitly copy the included
6078 # file in the build tree during `make distdir' to satisfy
6080 # (subdircond2.test and subdircond3.test will fail.)
6081 push_dist_common ("\$\(top_srcdir\)/$path");
6085 $path =~ s/\$\(srcdir\)\///;
6086 push (@include_stack, "\$\(srcdir\)/$path");
6087 # Always use the $(srcdir) prefix in DIST_COMMON,
6088 # otherwise OSF make will implicitly copy the included
6089 # file in the build tree during `make distdir' to satisfy
6091 # (subdircond2.test and subdircond3.test will fail.)
6092 push_dist_common ("\$\(srcdir\)/$path");
6093 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6095 $where->push_context ("`$path' included from here");
6096 &read_am_file ($path, $where);
6097 $where->pop_context;
6101 # This isn't an error; it is probably a continued rule.
6102 # In fact, this is what we assume.
6103 $prev_state = IN_RULE_DEF;
6104 check_variable_expansions ($_, $where);
6105 $output_trailer .= $comment . $spacing;
6106 my $cond = new Automake::Condition @cond_stack;
6107 $output_trailer .= $cond->subst_string;
6108 $output_trailer .= $_;
6109 $comment = $spacing = '';
6110 error $where, "`#' comment at start of rule is unportable"
6111 if $_ =~ /^\t\s*\#/;
6114 $saw_bk = $new_saw_bk;
6115 $_ = $am_file->getline;
6118 $output_trailer .= $comment;
6120 error ($where, "trailing backslash on last line")
6123 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6124 : "too many conditionals closed in include file"))
6125 if "@saved_cond_stack" ne "@cond_stack";
6129 # define_standard_variables ()
6130 # ----------------------------
6131 # A helper for read_main_am_file which initializes configure variables
6132 # and variables from header-vars.am.
6133 sub define_standard_variables
6135 my $saved_output_vars = $output_vars;
6136 my ($comments, undef, $rules) =
6137 file_contents_internal (1, "$libdir/am/header-vars.am",
6138 new Automake::Location);
6140 foreach my $var (sort keys %configure_vars)
6142 &define_configure_variable ($var);
6145 $output_vars .= $comments . $rules;
6148 # Read main am file.
6149 sub read_main_am_file
6153 # This supports the strange variable tricks we are about to play.
6154 prog_error (macros_dump () . "variable defined before read_main_am_file")
6155 if (scalar (variables) > 0);
6157 # Generate copyright header for generated Makefile.in.
6158 # We do discard the output of predefined variables, handled below.
6159 $output_vars = ("# $in_file_name generated by automake "
6160 . $VERSION . " from $am_file_name.\n");
6161 $output_vars .= '# ' . subst ('configure_input') . "\n";
6162 $output_vars .= $gen_copyright;
6164 # We want to predefine as many variables as possible. This lets
6165 # the user set them with `+=' in Makefile.am.
6166 &define_standard_variables;
6168 # Read user file, which might override some of our values.
6169 &read_am_file ($amfile, new Automake::Location);
6174 ################################################################
6177 # &flatten ($STRING)
6178 # ------------------
6179 # Flatten the $STRING and return the result.
6192 # transform($TOKEN, \%PAIRS)
6193 # ==========================
6194 # If ($TOKEN, $VAL) is in %PAIRS:
6195 # - replaces %$TOKEN% with $VAL,
6196 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6197 # - replaces %?$TOKEN% with TRUE or FALSE.
6200 my ($token, $transform) = @_;
6202 if (substr ($token, 0, 1) eq '%')
6204 my $cond = (substr ($token, 1, 1) eq '?') ? 1 : 0;
6205 $token = substr ($token, 1 + $cond, -1);
6206 my $val = $transform->{$token};
6207 prog_error "Unknown %token% `$token'" unless defined $val;
6210 return $val ? 'TRUE' : 'FALSE';
6217 # Now $token is '?xxx?' or '?!xxx?'.
6218 my $neg = (substr ($token, 1, 1) eq '!') ? 1 : 0;
6219 $token = substr ($token, 1 + $neg, -1);
6220 my $val = $transform->{$token};
6221 prog_error "Unknown ?token? `$token' (neg = $neg)" unless defined $val;
6222 return (!!$val == $neg) ? '##%' : '';
6226 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6227 # ------------------------------------------
6228 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6230 sub make_paragraphs ($%)
6232 my ($file, %transform) = @_;
6234 # Complete %transform with global options.
6235 # Note that %transform goes last, so it overrides global options.
6236 %transform = ('CYGNUS' => !! option 'cygnus',
6238 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6240 'BZIP2' => !! option 'dist-bzip2',
6241 'COMPRESS' => !! option 'dist-tarZ',
6242 'GZIP' => ! option 'no-dist-gzip',
6243 'SHAR' => !! option 'dist-shar',
6244 'ZIP' => !! option 'dist-zip',
6246 'INSTALL-INFO' => ! option 'no-installinfo',
6247 'INSTALL-MAN' => ! option 'no-installman',
6248 'CK-NEWS' => !! option 'check-news',
6250 'SUBDIRS' => !! var ('SUBDIRS'),
6251 'TOPDIR' => backname ($relative_dir),
6252 'TOPDIR_P' => $relative_dir eq '.',
6254 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6255 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6256 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6258 'LIBTOOL' => !! var ('LIBTOOL'),
6260 'FIRST' => ! $transformed_files{$file},
6263 $transformed_files{$file} = 1;
6264 $_ = $am_file_cache{$file};
6268 verb "reading $file";
6269 # Swallow the whole file.
6270 my $fc_file = new Automake::XFile "< $file";
6271 my $saved_dollar_slash = $/;
6273 $_ = $fc_file->getline;
6274 $/ = $saved_dollar_slash;
6277 # Remove ##-comments.
6278 # Besides we don't need more than two consecutive new-lines.
6279 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6281 $am_file_cache{$file} = $_;
6284 # Substitute Automake template tokens.
6285 s/(?:%\??[\w\-]+%|\?!?[\w\-]+\?)/transform($&, \%transform)/ge;
6286 # transform() may have added some ##%-comments to strip.
6287 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6288 # ####### and do not remove the latter.)
6289 s/^[ \t]*(?:##%)+.*\n//gm;
6291 # Split at unescaped new lines.
6292 my @lines = split (/(?<!\\)\n/, $_);
6295 while (defined ($_ = shift @lines))
6298 # If we are a rule, eat as long as we start with a tab.
6299 if (/$RULE_PATTERN/smo)
6301 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6303 $paragraph .= "\n$_";
6305 unshift (@lines, $_);
6308 # If we are a comments, eat as much comments as you can.
6309 elsif (/$COMMENT_PATTERN/smo)
6311 while (defined ($_ = shift @lines)
6312 && $_ =~ /$COMMENT_PATTERN/smo)
6314 $paragraph .= "\n$_";
6316 unshift (@lines, $_);
6319 push @res, $paragraph;
6327 # ($COMMENT, $VARIABLES, $RULES)
6328 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6329 # -------------------------------------------------------------
6330 # Return contents of a file from $libdir/am, automatically skipping
6331 # macros or rules which are already known. $IS_AM iff the caller is
6332 # reading an Automake file (as opposed to the user's Makefile.am).
6333 sub file_contents_internal ($$$%)
6335 my ($is_am, $file, $where, %transform) = @_;
6337 $where->set ($file);
6339 my $result_vars = '';
6340 my $result_rules = '';
6344 # The following flags are used to track rules spanning across
6345 # multiple paragraphs.
6346 my $is_rule = 0; # 1 if we are processing a rule.
6347 my $discard_rule = 0; # 1 if the current rule should not be output.
6349 # We save the conditional stack on entry, and then check to make
6350 # sure it is the same on exit. This lets us conditionally include
6352 my @saved_cond_stack = @cond_stack;
6353 my $cond = new Automake::Condition (@cond_stack);
6355 foreach (make_paragraphs ($file, %transform))
6357 # FIXME: no line number available.
6358 $where->set ($file);
6361 error $where, "blank line following trailing backslash:\n$_"
6363 error $where, "comment following trailing backslash:\n$_"
6369 # Stick empty line before the incoming macro or rule.
6372 elsif (/$COMMENT_PATTERN/mso)
6375 # Stick comments before the incoming macro or rule.
6379 # Handle inclusion of other files.
6380 elsif (/$INCLUDE_PATTERN/o)
6384 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6385 $where->push_context ("`$file' included from here");
6387 my ($com, $vars, $rules)
6388 = file_contents_internal ($is_am, $file, $where, %transform);
6389 $where->pop_context;
6391 $result_vars .= $vars;
6392 $result_rules .= $rules;
6396 # Handling the conditionals.
6397 elsif (/$IF_PATTERN/o)
6399 $cond = cond_stack_if ($1, $2, $file);
6401 elsif (/$ELSE_PATTERN/o)
6403 $cond = cond_stack_else ($1, $2, $file);
6405 elsif (/$ENDIF_PATTERN/o)
6407 $cond = cond_stack_endif ($1, $2, $file);
6411 elsif (/$RULE_PATTERN/mso)
6415 # Separate relationship from optional actions: the first
6416 # `new-line tab" not preceded by backslash (continuation
6419 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6420 my ($relationship, $actions) = ($1, $2 || '');
6422 # Separate targets from dependencies: the first colon.
6423 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6424 my ($targets, $dependencies) = ($1, $2);
6425 # Remove the escaped new lines.
6426 # I don't know why, but I have to use a tmp $flat_deps.
6427 my $flat_deps = &flatten ($dependencies);
6428 my @deps = split (' ', $flat_deps);
6430 foreach (split (' ' , $targets))
6432 # FIXME: 1. We are not robust to people defining several targets
6433 # at once, only some of them being in %dependencies. The
6434 # actions from the targets in %dependencies are usually generated
6435 # from the content of %actions, but if some targets in $targets
6436 # are not in %dependencies the ELSE branch will output
6437 # a rule for all $targets (i.e. the targets which are both
6438 # in %dependencies and $targets will have two rules).
6440 # FIXME: 2. The logic here is not able to output a
6441 # multi-paragraph rule several time (e.g. for each condition
6442 # it is defined for) because it only knows the first paragraph.
6444 # FIXME: 3. We are not robust to people defining a subset
6445 # of a previously defined "multiple-target" rule. E.g.
6446 # `foo:' after `foo bar:'.
6448 # Output only if not in FALSE.
6449 if (defined $dependencies{$_} && $cond != FALSE)
6451 &depend ($_, @deps);
6454 $actions{$_} .= "\n$actions" if $actions;
6458 $actions{$_} = $actions;
6463 # Free-lance dependency. Output the rule for all the
6464 # targets instead of one by one.
6465 my @undefined_conds =
6466 Automake::Rule::define ($targets, $file,
6467 $is_am ? RULE_AUTOMAKE : RULE_USER,
6469 for my $undefined_cond (@undefined_conds)
6471 my $condparagraph = $paragraph;
6472 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6473 $result_rules .= "$spacing$comment$condparagraph\n";
6475 if (scalar @undefined_conds == 0)
6477 # Remember to discard next paragraphs
6478 # if they belong to this rule.
6479 # (but see also FIXME: #2 above.)
6482 $comment = $spacing = '';
6488 elsif (/$ASSIGNMENT_PATTERN/mso)
6490 my ($var, $type, $val) = ($1, $2, $3);
6491 error $where, "variable `$var' with trailing backslash"
6496 Automake::Variable::define ($var,
6497 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6498 $type, $cond, $val, $comment, $where,
6502 $comment = $spacing = '';
6506 # This isn't an error; it is probably some tokens which
6507 # configure is supposed to replace, such as `@SET-MAKE@',
6508 # or some part of a rule cut by an if/endif.
6509 if (! $cond->false && ! ($is_rule && $discard_rule))
6511 s/^/$cond->subst_string/gme;
6512 $result_rules .= "$spacing$comment$_\n";
6514 $comment = $spacing = '';
6518 error ($where, @cond_stack ?
6519 "unterminated conditionals: @cond_stack" :
6520 "too many conditionals closed in include file")
6521 if "@saved_cond_stack" ne "@cond_stack";
6523 return ($comment, $result_vars, $result_rules);
6528 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6529 # ------------------------------------------------
6530 # Return contents of a file from $libdir/am, automatically skipping
6531 # macros or rules which are already known.
6532 sub file_contents ($$%)
6534 my ($basename, $where, %transform) = @_;
6535 my ($comments, $variables, $rules) =
6536 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6538 return "$comments$variables$rules";
6542 # &append_exeext ($MACRO)
6543 # -----------------------
6544 # Macro is an Automake magic macro which primary is PROGRAMS, e.g.
6545 # bin_PROGRAMS. Make sure these programs have $(EXEEXT) appended.
6546 sub append_exeext ($)
6550 prog_error "append_exeext ($macro)"
6551 unless $macro =~ /_PROGRAMS$/;
6553 transform_variable_recursively
6554 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
6556 my ($subvar, $val, $cond, $full_cond) = @_;
6557 # Append $(EXEEXT) unless the user did it already, or it's a
6559 $val .= '$(EXEEXT)' unless $val =~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/;
6566 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6567 # -----------------------------------------------------
6568 # Find all variable prefixes that are used for install directories. A
6569 # prefix `zar' qualifies iff:
6571 # * `zardir' is a variable.
6572 # * `zar_PRIMARY' is a variable.
6574 # As a side effect, it looks for misspellings. It is an error to have
6575 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6576 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6577 # of the same name (with "dir" appended) exists. For instance, if the
6578 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6579 # This is to provide a little extra flexibility in those cases which
6581 sub am_primary_prefixes ($$@)
6583 my ($primary, $can_dist, @prefixes) = @_;
6586 my %valid = map { $_ => 0 } @prefixes;
6587 $valid{'EXTRA'} = 0;
6588 foreach my $var (variables $primary)
6590 # Automake is allowed to define variables that look like primaries
6591 # but which aren't. E.g. INSTALL_sh_DATA.
6592 # Autoconf can also define variables like INSTALL_DATA, so
6593 # ignore all configure variables (at least those which are not
6594 # redefined in Makefile.am).
6595 # FIXME: We should make sure that these variables are not
6596 # conditionally defined (or else adjust the condition below).
6597 my $def = $var->def (TRUE);
6598 next if $def && $def->owner != VAR_MAKEFILE;
6600 my $varname = $var->name;
6602 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
6604 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6605 if ($dist ne '' && ! $can_dist)
6608 "invalid variable `$varname': `dist' is forbidden");
6610 # Standard directories must be explicitly allowed.
6611 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6614 "`${X}dir' is not a legitimate directory " .
6617 # A not explicitly valid directory is allowed if Xdir is defined.
6618 elsif (! defined $valid{$X} &&
6619 $var->requires_variables ("`$varname' is used", "${X}dir"))
6621 # Nothing to do. Any error message has been output
6622 # by $var->requires_variables.
6626 # Ensure all extended prefixes are actually used.
6627 $valid{"$base$dist$X"} = 1;
6632 prog_error "unexpected variable name: $varname";
6636 # Return only those which are actually defined.
6637 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6641 # Handle `where_HOW' variable magic. Does all lookups, generates
6642 # install code, and possibly generates code to define the primary
6643 # variable. The first argument is the name of the .am file to munge,
6644 # the second argument is the primary variable (e.g. HEADERS), and all
6645 # subsequent arguments are possible installation locations.
6647 # Returns list of [$location, $value] pairs, where
6648 # $value's are the values in all where_HOW variable, and $location
6649 # there associated location (the place here their parent variables were
6652 # FIXME: this should be rewritten to be cleaner. It should be broken
6653 # up into multiple functions.
6655 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6662 my $default_dist = 0;
6665 if ($args[0] eq '-noextra')
6669 elsif ($args[0] eq '-candist')
6673 elsif ($args[0] eq '-defaultdist')
6678 elsif ($args[0] !~ /^-/)
6685 my ($file, $primary, @prefix) = @args;
6687 # Now that configure substitutions are allowed in where_HOW
6688 # variables, it is an error to actually define the primary. We
6689 # allow `JAVA', as it is customarily used to mean the Java
6690 # interpreter. This is but one of several Java hacks. Similarly,
6691 # `PYTHON' is customarily used to mean the Python interpreter.
6692 reject_var $primary, "`$primary' is an anachronism"
6693 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6695 # Get the prefixes which are valid and actually used.
6696 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6698 # If a primary includes a configure substitution, then the EXTRA_
6699 # form is required. Otherwise we can't properly do our job.
6705 foreach my $X (@prefix)
6707 my $nodir_name = $X;
6708 my $one_name = $X . '_' . $primary;
6709 my $one_var = var $one_name;
6711 my $strip_subdir = 1;
6712 # If subdir prefix should be preserved, do so.
6713 if ($nodir_name =~ /^nobase_/)
6716 $nodir_name =~ s/^nobase_//;
6719 # If files should be distributed, do so.
6723 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6724 || (! $default_dist && $nodir_name =~ /^dist_/));
6725 $nodir_name =~ s/^(dist|nodist)_//;
6729 # Use the location of the currently processed variable.
6730 # We are not processing a particular condition, so pick the first
6732 my $tmpcond = $one_var->conditions->one_cond;
6733 my $where = $one_var->rdef ($tmpcond)->location->clone;
6735 # Append actual contents of where_PRIMARY variable to
6736 # @result, skipping @substitutions@.
6737 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6739 my ($loc, $value) = @$locvals;
6740 # Skip configure substitutions.
6741 if ($value =~ /^\@.*\@$/)
6743 if ($nodir_name eq 'EXTRA')
6746 "`$one_name' contains configure substitution, "
6749 # Check here to make sure variables defined in
6750 # configure.ac do not imply that EXTRA_PRIMARY
6752 elsif (! defined $configure_vars{$one_name})
6754 $require_extra = $one_name
6760 push (@result, $locvals);
6763 # A blatant hack: we rewrite each _PROGRAMS primary to include
6765 append_exeext ($one_name)
6766 if $primary eq 'PROGRAMS';
6767 # "EXTRA" shouldn't be used when generating clean targets,
6768 # all, or install targets. We used to warn if EXTRA_FOO was
6769 # defined uselessly, but this was annoying.
6771 if $nodir_name eq 'EXTRA';
6773 if ($nodir_name eq 'check')
6775 push (@check, '$(' . $one_name . ')');
6779 push (@used, '$(' . $one_name . ')');
6782 # Is this to be installed?
6783 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6785 # If so, with install-exec? (or install-data?).
6786 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6788 my $check_options_p = $install_p && !! option 'std-options';
6790 # Use the location of the currently processed variable as context.
6791 $where->push_context ("while processing `$one_name'");
6793 # The variable containing all file to distribute.
6794 my $distvar = "\$($one_name)";
6795 $distvar = shadow_unconditionally ($one_name, $where)
6796 if ($dist_p && $one_var->has_conditional_contents);
6798 # Singular form of $PRIMARY.
6799 (my $one_primary = $primary) =~ s/S$//;
6800 $output_rules .= &file_contents ($file, $where,
6801 PRIMARY => $primary,
6802 ONE_PRIMARY => $one_primary,
6804 NDIR => $nodir_name,
6805 BASE => $strip_subdir,
6808 INSTALL => $install_p,
6810 DISTVAR => $distvar,
6811 'CK-OPTS' => $check_options_p);
6814 # The JAVA variable is used as the name of the Java interpreter.
6815 # The PYTHON variable is used as the name of the Python interpreter.
6816 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6819 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6820 $output_vars .= "\n";
6823 err_var ($require_extra,
6824 "`$require_extra' contains configure substitution,\n"
6825 . "but `EXTRA_$primary' not defined")
6826 if ($require_extra && ! var ('EXTRA_' . $primary));
6828 # Push here because PRIMARY might be configure time determined.
6829 push (@all, '$(' . $primary . ')')
6830 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6832 # Make the result unique. This lets the user use conditionals in
6833 # a natural way, but still lets us program lazily -- we don't have
6834 # to worry about handling a particular object more than once.
6835 # We will keep only one location per object.
6837 for my $pair (@result)
6839 my ($loc, $val) = @$pair;
6840 $result{$val} = $loc;
6842 my @l = sort keys %result;
6843 return map { [$result{$_}->clone, $_] } @l;
6847 ################################################################
6849 # Each key in this hash is the name of a directory holding a
6850 # Makefile.in. These variables are local to `is_make_dir'.
6852 my $make_dirs_set = 0;
6857 if (! $make_dirs_set)
6859 foreach my $iter (@configure_input_files)
6861 $make_dirs{dirname ($iter)} = 1;
6863 # We also want to notice Makefile.in's.
6864 foreach my $iter (@other_input_files)
6866 if ($iter =~ /Makefile\.in$/)
6868 $make_dirs{dirname ($iter)} = 1;
6873 return defined $make_dirs{$dir};
6876 ################################################################
6878 # Find the aux dir. This should match the algorithm used by
6879 # ./configure. (See the Autoconf documentation for for
6880 # AC_CONFIG_AUX_DIR.)
6881 sub locate_aux_dir ()
6883 if (! $config_aux_dir_set_in_configure_ac)
6885 # The default auxiliary directory is the first
6886 # of ., .., or ../.. that contains install-sh.
6887 # Assume . if install-sh doesn't exist yet.
6888 for my $dir (qw (. .. ../..))
6890 if (-f "$dir/install-sh")
6892 $config_aux_dir = $dir;
6896 $config_aux_dir = '.' unless $config_aux_dir;
6898 # Avoid unsightly '/.'s.
6899 $am_config_aux_dir =
6900 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
6901 $am_config_aux_dir =~ s,/*$,,;
6905 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
6906 # --------------------------------------------------
6907 # See if we want to push this file onto dist_common. This function
6908 # encodes the rules for deciding when to do so.
6909 sub maybe_push_required_file
6911 my ($dir, $file, $fullfile) = @_;
6913 if ($dir eq $relative_dir)
6915 push_dist_common ($file);
6918 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
6920 # If we are doing the topmost directory, and the file is in a
6921 # subdir which does not have a Makefile, then we distribute it
6924 # If a required file is above the source tree, it is important
6925 # to prefix it with `$(srcdir)' so that no VPATH search is
6926 # performed. Otherwise problems occur with Make implementations
6927 # that rewrite and simplify rules whose dependencies are found in a
6928 # VPATH location. Here is an example with OSF1/Tru64 Make.
6940 # Dependency `../a' was found in `sub/../a', but this make
6941 # implementation simplified it as `a'. (Note that the sub/
6942 # directory does not even exist.)
6944 # This kind of VPATH rewriting seems hard to cancel. The
6945 # distdir.am hack against VPATH rewriting works only when no
6946 # simplification is done, i.e., for dependencies which are in
6947 # subdirectories, not in enclosing directories. Hence, in
6948 # the latter case we use a full path to make sure no VPATH
6950 $fullfile = '$(srcdir)/' . $fullfile
6951 if $dir =~ m,^\.\.(?:$|/),;
6953 push_dist_common ($fullfile);
6960 # If a file name appears as a key in this hash, then it has already
6961 # been checked for. This allows us not to report the same error more
6963 my %required_file_not_found = ();
6965 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
6966 # --------------------------------------------------------------
6967 # Verify that the file must exist in $DIRECTORY, or install it.
6968 # $MYSTRICT is the strictness level at which this file becomes required.
6969 sub require_file_internal ($$$@)
6971 my ($where, $mystrict, $dir, @files) = @_;
6973 foreach my $file (@files)
6975 my $fullfile = "$dir/$file";
6977 my $dangling_sym = 0;
6979 if (-l $fullfile && ! -f $fullfile)
6983 elsif (dir_has_case_matching_file ($dir, $file))
6986 maybe_push_required_file ($dir, $file, $fullfile);
6989 # `--force-missing' only has an effect if `--add-missing' is
6991 if ($found_it && (! $add_missing || ! $force_missing))
6997 # If we've already looked for it, we're done. You might
6998 # wonder why we don't do this before searching for the
6999 # file. If we do that, then something like
7000 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7004 next if defined $required_file_not_found{$fullfile};
7005 $required_file_not_found{$fullfile} = 1;
7008 if ($strictness >= $mystrict)
7010 if ($dangling_sym && $add_missing)
7018 # Only install missing files according to our desired
7020 my $message = "required file `$fullfile' not found";
7023 if (-f ("$libdir/$file"))
7027 # Install the missing file. Symlink if we
7028 # can, copy if we must. Note: delete the file
7029 # first, in case it is a dangling symlink.
7030 $message = "installing `$fullfile'";
7031 # Windows Perl will hang if we try to delete a
7032 # file that doesn't exist.
7033 unlink ($fullfile) if -f $fullfile;
7034 if ($symlink_exists && ! $copy_missing)
7036 if (! symlink ("$libdir/$file", $fullfile))
7039 $trailer = "; error while making link: $!";
7042 elsif (system ('cp', "$libdir/$file", $fullfile))
7045 $trailer = "\n error while copying";
7047 reset_dir_cache ($dir);
7050 if (! maybe_push_required_file (dirname ($fullfile),
7053 if (! $found_it && ! $automake_will_process_aux_dir)
7055 # We have added the file but could not push it
7056 # into DIST_COMMON, probably because this is
7057 # an auxiliary file and we are not processing
7058 # the top level Makefile. Furthermore Automake
7059 # hasn't been asked to create the Makefile.in
7060 # that distribute the aux dir files.
7061 error ($where, 'Please make a full run of automake'
7062 . " so $fullfile gets distributed.");
7067 # If --force-missing was specified, and we have
7068 # actually found the file, then do nothing.
7070 if $found_it && $force_missing;
7072 # If we couldn' install the file, but it is a target in
7073 # the Makefile, don't print anything. This allows files
7074 # like README, AUTHORS, or THANKS to be generated.
7076 if !$suppress && rule $file;
7078 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
7084 # &require_file ($WHERE, $MYSTRICT, @FILES)
7085 # -----------------------------------------
7086 sub require_file ($$@)
7088 my ($where, $mystrict, @files) = @_;
7089 require_file_internal ($where, $mystrict, $relative_dir, @files);
7092 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7093 # -----------------------------------------------------------
7094 sub require_file_with_macro ($$$@)
7096 my ($cond, $macro, $mystrict, @files) = @_;
7097 $macro = rvar ($macro) unless ref $macro;
7098 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7102 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7103 # ----------------------------------------------
7104 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7105 sub require_conf_file ($$@)
7107 my ($where, $mystrict, @files) = @_;
7108 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7112 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7113 # ----------------------------------------------------------------
7114 sub require_conf_file_with_macro ($$$@)
7116 my ($cond, $macro, $mystrict, @files) = @_;
7117 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7121 ################################################################
7123 # &require_build_directory ($DIRECTORY)
7124 # ------------------------------------
7125 # Emit rules to create $DIRECTORY if needed, and return
7126 # the file that any target requiring this directory should be made
7128 sub require_build_directory ($)
7130 my $directory = shift;
7131 my $dirstamp = "$directory/\$(am__dirstamp)";
7133 # Don't emit the rule twice.
7134 if (! defined $directory_map{$directory})
7136 $directory_map{$directory} = 1;
7138 # Set a variable for the dirstamp basename.
7139 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7140 '$(am__leading_dot)dirstamp');
7142 # Directory must be removed by `make distclean'.
7143 $clean_files{$dirstamp} = DIST_CLEAN;
7145 $output_rules .= ("$dirstamp:\n"
7146 . "\t\@\$(mkdir_p) $directory\n"
7147 . "\t\@: > $dirstamp\n");
7153 # &require_build_directory_maybe ($FILE)
7154 # --------------------------------------
7155 # If $FILE lies in a subdirectory, emit a rule to create this
7156 # directory and return the file that $FILE should be made
7157 # dependent upon. Otherwise, just return the empty string.
7158 sub require_build_directory_maybe ($)
7161 my $directory = dirname ($file);
7163 if ($directory ne '.')
7165 return require_build_directory ($directory);
7173 ################################################################
7175 # Push a list of files onto dist_common.
7176 sub push_dist_common
7178 prog_error "push_dist_common run after handle_dist"
7179 if $handle_dist_run;
7180 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7181 '', INTERNAL, VAR_PRETTY);
7185 ################################################################
7187 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7188 # ----------------------------------------------
7189 # Generate a Makefile.in given the name of the corresponding Makefile and
7190 # the name of the file output by config.status.
7191 sub generate_makefile ($$)
7193 my ($makefile_am, $makefile_in) = @_;
7195 # Reset all the Makefile.am related variables.
7196 initialize_per_input;
7198 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7199 # warnings for this file. So hold any warning issued before
7200 # we have processed AUTOMAKE_OPTIONS.
7201 buffer_messages ('warning');
7203 # Name of input file ("Makefile.am") and output file
7204 # ("Makefile.in"). These have no directory components.
7205 $am_file_name = basename ($makefile_am);
7206 $in_file_name = basename ($makefile_in);
7208 # $OUTPUT is encoded. If it contains a ":" then the first element
7209 # is the real output file, and all remaining elements are input
7210 # files. We don't scan or otherwise deal with these input files,
7211 # other than to mark them as dependencies. See
7212 # &scan_autoconf_files for details.
7213 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7215 $relative_dir = dirname ($makefile);
7216 $am_relative_dir = dirname ($makefile_am);
7218 read_main_am_file ($makefile_am);
7221 # Process buffered warnings.
7223 # Fatal error. Just return, so we can continue with next file.
7226 # Process buffered warnings.
7229 # There are a few install-related variables that you should not define.
7230 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7235 my $def = $v->def (TRUE);
7236 prog_error "$var not defined in condition TRUE"
7238 reject_var $var, "`$var' should not be defined"
7239 if $def->owner != VAR_AUTOMAKE;
7243 # Catch some obsolete variables.
7244 msg_var ('obsolete', 'INCLUDES',
7245 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
7246 if var ('INCLUDES');
7248 # Must do this after reading .am file.
7249 define_variable ('subdir', $relative_dir, INTERNAL);
7251 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7252 # recursive rules are enabled.
7253 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7254 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7256 # Check first, because we might modify some state.
7258 check_gnu_standards;
7259 check_gnits_standards;
7261 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7268 # These must be run after all the sources are scanned. They
7269 # use variables defined by &handle_libraries, &handle_ltlibraries,
7270 # or &handle_programs.
7275 # Variables used by distdir.am and tags.am.
7276 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7277 if (! option 'no-dist')
7279 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7292 handle_minor_options;
7295 # This must come after most other rules.
7299 do_check_merge_target;
7300 handle_all ($makefile);
7303 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7305 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7309 handle_clean ($makefile);
7310 handle_factored_dependencies;
7312 # Comes last, because all the above procedures may have
7313 # defined or overridden variables.
7314 $output_vars .= output_variables;
7318 my ($out_file) = $output_directory . '/' . $makefile_in;
7320 if ($exit_code != 0)
7322 verb "not writing $out_file because of earlier errors";
7326 if (! -d ($output_directory . '/' . $am_relative_dir))
7328 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
7331 # We make sure that `all:' is the first target.
7333 "$output_vars$output_all$output_header$output_rules$output_trailer";
7335 # Decide whether we must update the output file or not.
7336 # We have to update in the following situations.
7337 # * $force_generation is set.
7338 # * any of the output dependencies is younger than the output
7339 # * the contents of the output is different (this can happen
7340 # if the project has been populated with a file listed in
7341 # @common_files since the last run).
7342 # Output's dependencies are split in two sets:
7343 # * dependencies which are also configure dependencies
7344 # These do not change between each Makefile.am
7345 # * other dependencies, specific to the Makefile.am being processed
7346 # (such as the Makefile.am itself, or any Makefile fragment
7348 my $timestamp = mtime $out_file;
7349 if (! $force_generation
7350 && $configure_deps_greatest_timestamp < $timestamp
7351 && $output_deps_greatest_timestamp < $timestamp
7352 && $output eq contents ($out_file))
7354 verb "$out_file unchanged";
7355 # No need to update.
7362 or fatal "cannot remove $out_file: $!\n";
7365 my $gm_file = new Automake::XFile "> $out_file";
7366 verb "creating $out_file";
7367 print $gm_file $output;
7370 ################################################################
7375 ################################################################
7377 # Print usage information.
7380 print "Usage: $0 [OPTION] ... [Makefile]...
7382 Generate Makefile.in for configure from Makefile.am.
7385 --help print this help, then exit
7386 --version print version number, then exit
7387 -v, --verbose verbosely list files processed
7388 --no-force only update Makefile.in's that are out of date
7389 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
7391 Dependency tracking:
7392 -i, --ignore-deps disable dependency tracking code
7393 --include-deps enable dependency tracking code
7396 --cygnus assume program is part of Cygnus-style tree
7397 --foreign set strictness to foreign
7398 --gnits set strictness to gnits
7399 --gnu set strictness to gnu
7402 -a, --add-missing add missing standard files to package
7403 --libdir=DIR directory storing library files
7404 -c, --copy with -a, copy missing files (default is symlink)
7405 -f, --force-missing force update of standard files
7408 Automake::ChannelDefs::usage;
7412 foreach my $iter (sort ((@common_files, @common_sometimes)))
7414 push (@lcomm, $iter) unless $iter eq $last;
7419 print "\nFiles which are automatically distributed, if found:\n";
7420 format USAGE_FORMAT =
7421 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7422 $four[0], $four[1], $four[2], $four[3]
7424 $~ = "USAGE_FORMAT";
7427 my $rows = int(@lcomm / $cols);
7428 my $rest = @lcomm % $cols;
7439 for (my $y = 0; $y < $rows; $y++)
7441 @four = ("", "", "", "");
7442 for (my $x = 0; $x < $cols; $x++)
7444 last if $y + 1 == $rows && $x == $rest;
7446 my $idx = (($x > $rest)
7447 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7451 $four[$x] = $lcomm[$idx];
7456 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7458 # --help always returns 0 per GNU standards.
7465 # Print version information
7469 automake (GNU $PACKAGE) $VERSION
7470 Written by Tom Tromey <tromey\@redhat.com>
7471 and Alexandre Duret-Lutz <adl\@gnu.org>.
7473 Copyright 2005 Free Software Foundation, Inc.
7474 This is free software; see the source for copying conditions. There is NO
7475 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7477 # --version always returns 0 per GNU standards.
7481 ################################################################
7483 # Parse command line.
7484 sub parse_arguments ()
7487 set_strictness ('gnu');
7489 my $cli_where = new Automake::Location;
7492 'libdir=s' => \$libdir,
7493 'gnu' => sub { set_strictness ('gnu'); },
7494 'gnits' => sub { set_strictness ('gnits'); },
7495 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7496 'foreign' => sub { set_strictness ('foreign'); },
7497 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7498 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7500 'no-force' => sub { $force_generation = 0; },
7501 'f|force-missing' => \$force_missing,
7502 'o|output-dir=s' => \$output_directory,
7503 'a|add-missing' => \$add_missing,
7504 'c|copy' => \$copy_missing,
7505 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7506 'W|warnings=s' => \&parse_warnings,
7507 # These long options (--Werror and --Wno-error) for backward
7508 # compatibility. Use -Werror and -Wno-error today.
7509 'Werror' => sub { parse_warnings 'W', 'error'; },
7510 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7513 Getopt::Long::config ("bundling", "pass_through");
7515 # See if --version or --help is used. We want to process these before
7516 # anything else because the GNU Coding Standards require us to
7517 # `exit 0' after processing these options, and we can't guarantee this
7518 # if we treat other options first. (Handling other options first
7519 # could produce error diagnostics, and in this condition it is
7520 # confusing if Automake does `exit 0'.)
7521 my %cli_options_1st_pass =
7523 'version' => \&version,
7525 # Recognize all other options (and their arguments) but do nothing.
7526 map { $_ => sub {} } (keys %cli_options)
7528 my @ARGV_backup = @ARGV;
7529 Getopt::Long::GetOptions %cli_options_1st_pass
7531 @ARGV = @ARGV_backup;
7533 # Now *really* process the options. This time we know that --help
7534 # and --version are not present, but we specify them nonetheless so
7535 # that ambiguous abbreviation are diagnosed.
7536 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
7539 if (defined $output_directory)
7541 msg 'obsolete', "`--output-dir' is deprecated\n";
7545 # In the next release we'll remove this entirely.
7546 $output_directory = '.';
7549 return unless @ARGV;
7551 if ($ARGV[0] =~ /^-./)
7554 for my $k (keys %cli_options)
7556 if ($k =~ /(.*)=s$/)
7558 map { $argopts{(length ($_) == 1)
7559 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
7562 if ($ARGV[0] eq '--')
7566 elsif (exists $argopts{$ARGV[0]})
7568 fatal ("option `$ARGV[0]' requires an argument\n"
7569 . "Try `$0 --help' for more information.");
7573 fatal ("unrecognized option `$ARGV[0]'.\n"
7574 . "Try `$0 --help' for more information.");
7579 foreach my $arg (@ARGV)
7581 fatal ("empty argument\nTry `$0 --help' for more information.")
7584 # Handle $local:$input syntax.
7585 my ($local, @rest) = split (/:/, $arg);
7586 @rest = ("$local.in",) unless @rest;
7587 my $input = locate_am @rest;
7590 push @input_files, $input;
7591 $output_files{$input} = join (':', ($local, @rest));
7595 error "no Automake input file found for `$arg'";
7599 fatal "no input file found among supplied arguments"
7600 if $errspec && ! @input_files;
7603 ################################################################
7605 # Parse the WARNINGS environment variable.
7608 # Parse command line.
7611 $configure_ac = require_configure_ac;
7613 # Do configure.ac scan only once.
7614 scan_autoconf_files;
7619 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
7620 if -f 'Makefile.am';
7621 fatal ("no `Makefile.am' found for any configure output$msg");
7624 # Now do all the work on each file.
7625 foreach my $file (@input_files)
7627 ($am_file = $file) =~ s/\.in$//;
7628 if (! -f ($am_file . '.am'))
7630 error "`$am_file.am' does not exist";
7634 # Any warning setting now local to this Makefile.am.
7637 generate_makefile ($am_file . '.am', $file);
7639 # Back out any warning setting.
7647 ### Setup "GNU" style for perl-mode and cperl-mode.
7649 ## perl-indent-level: 2
7650 ## perl-continued-statement-offset: 2
7651 ## perl-continued-brace-offset: 0
7652 ## perl-brace-offset: 0
7653 ## perl-brace-imaginary-offset: 0
7654 ## perl-label-offset: -2
7655 ## cperl-indent-level: 2
7656 ## cperl-brace-offset: 0
7657 ## cperl-continued-brace-offset: 0
7658 ## cperl-label-offset: -2
7659 ## cperl-extra-newline-before-brace: t
7660 ## cperl-merge-trailing-else: nil
7661 ## cperl-continued-statement-offset: 2