5 eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
10 # 2003, 2004, 2005, 2006 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., 51 Franklin Street, Fifth Floor, 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';
157 # Some regular expressions. One reason to put them here is that it
158 # makes indentation work better in Emacs.
160 # Writing singled-quoted-$-terminated regexes is a pain because
161 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
162 # by a closing quote. Letting perl-mode think the quote is not closed
163 # leads to all sort of misindentations. On the other hand, defining
164 # regexes as double-quoted strings is far less readable. So usually
167 # $REGEX = '^regex_value' . "\$";
169 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
170 my $WHITE_PATTERN = '^\s*' . "\$";
171 my $COMMENT_PATTERN = '^#';
172 my $TARGET_PATTERN='[$a-zA-Z_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
173 # A rule has three parts: a list of targets, a list of dependencies,
174 # and optionally actions.
176 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
178 # Only recognize leading spaces, not leading tabs. If we recognize
179 # leading tabs here then we need to make the reader smarter, because
180 # otherwise it will think rules like `foo=bar; \' are errors.
181 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
182 # This pattern recognizes a Gnits version id and sets $1 if the
183 # release is an alpha release. We also allow a suffix which can be
184 # used to extend the version number with a "fork" identifier.
185 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
187 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
189 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
191 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
192 my $PATH_PATTERN = '(\w|[+/.-])+';
193 # This will pass through anything not of the prescribed form.
194 my $INCLUDE_PATTERN = ('^include\s+'
195 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
196 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
197 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
199 # Match `-d' as a command-line argument in a string.
200 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
201 # Directories installed during 'install-exec' phase.
202 my $EXEC_DIR_PATTERN =
203 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
205 # Values for AC_CANONICAL_*
206 use constant AC_CANONICAL_BUILD => 1;
207 use constant AC_CANONICAL_HOST => 2;
208 use constant AC_CANONICAL_TARGET => 3;
210 # Values indicating when something should be cleaned.
211 use constant MOSTLY_CLEAN => 0;
212 use constant CLEAN => 1;
213 use constant DIST_CLEAN => 2;
214 use constant MAINTAINER_CLEAN => 3;
217 my @libtool_files = qw(ltmain.sh config.guess config.sub);
218 # ltconfig appears here for compatibility with old versions of libtool.
219 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
221 # Commonly found files we look for and automatically include in
224 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
225 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
226 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
227 depcomp elisp-comp install-sh libversion.in mdate-sh missing
228 mkinstalldirs py-compile texinfo.tex ylwrap),
229 @libtool_files, @libtool_sometimes);
231 # Commonly used files we auto-include, but only sometimes. This list
232 # is used for the --help output only.
233 my @common_sometimes =
234 qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
235 configure.ac configure.in stamp-vti);
237 # Standard directories from the GNU Coding Standards, and additional
238 # pkg* directories from Automake. Stored in a hash for fast member check.
239 my %standard_prefix =
240 map { $_ => 1 } (qw(bin data dataroot dvi exec html include info
241 lib libexec lisp localstate man man1 man2 man3
242 man4 man5 man6 man7 man8 man9 oldinclude pdf
243 pkgdatadir pkgincludedir pkglibdir ps sbin
244 sharedstate sysconf));
246 # Copyright on generated Makefile.ins.
247 my $gen_copyright = "\
248 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
249 # 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
250 # This Makefile.in is free software; the Free Software Foundation
251 # gives unlimited permission to copy and/or distribute it,
252 # with or without modifications, as long as this notice is preserved.
254 # This program is distributed in the hope that it will be useful,
255 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
256 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
257 # PARTICULAR PURPOSE.
260 # These constants are returned by lang_*_rewrite functions.
261 # LANG_SUBDIR means that the resulting object file should be in a
262 # subdir if the source file is. In this case the file name cannot
263 # have `..' components.
264 use constant LANG_IGNORE => 0;
265 use constant LANG_PROCESS => 1;
266 use constant LANG_SUBDIR => 2;
268 # These are used when keeping track of whether an object can be built
269 # by two different paths.
270 use constant COMPILE_LIBTOOL => 1;
271 use constant COMPILE_ORDINARY => 2;
273 # We can't always associate a location to a variable or a rule,
274 # when its defined by Automake. We use INTERNAL in this case.
275 use constant INTERNAL => new Automake::Location;
278 ## ---------------------------------- ##
279 ## Variables related to the options. ##
280 ## ---------------------------------- ##
282 # TRUE if we should always generate Makefile.in.
283 my $force_generation = 1;
285 # From the Perl manual.
286 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
288 # TRUE if missing standard files should be installed.
291 # TRUE if we should copy missing files; otherwise symlink if possible.
292 my $copy_missing = 0;
294 # TRUE if we should always update files that we know about.
295 my $force_missing = 0;
298 ## ---------------------------------------- ##
299 ## Variables filled during files scanning. ##
300 ## ---------------------------------------- ##
302 # Name of the configure.ac file.
305 # Files found by scanning configure.ac for LIBOBJS.
308 # Names used in AC_CONFIG_HEADER call.
309 my @config_headers = ();
311 # Names used in AC_CONFIG_LINKS call.
312 my @config_links = ();
314 # Directory where output files go. Actually, output files are
315 # relative to this directory.
316 my $output_directory;
318 # List of Makefile.am's to process, and their corresponding outputs.
319 my @input_files = ();
320 my %output_files = ();
322 # Complete list of Makefile.am's that exist.
323 my @configure_input_files = ();
325 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
327 my @other_input_files = ();
328 # Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
329 # The keys are the files created by these macros.
330 my %ac_config_files_location = ();
332 # Directory to search for configure-required files. This
333 # will be computed by &locate_aux_dir and can be set using
334 # AC_CONFIG_AUX_DIR in configure.ac.
335 # $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
336 my $config_aux_dir = '';
337 my $config_aux_dir_set_in_configure_ac = 0;
338 # $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
340 my $am_config_aux_dir = '';
342 # Directory to search for AC_LIBSOURCE files, as set by AC_CONFIG_LIBOBJ_DIR
344 my $config_libobj_dir = '';
346 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
347 my $seen_gettext = 0;
348 # Whether AM_GNU_GETTEXT([external]) is used.
349 my $seen_gettext_external = 0;
350 # Where AM_GNU_GETTEXT appears.
351 my $ac_gettext_location;
353 # Lists of tags supported by Libtool.
354 my %libtool_tags = ();
355 # 1 if Libtool uses LT_SUPPORTED_TAG. If it does, then it also
356 # uses AC_REQUIRE_AUX_FILE.
357 my $libtool_new_api = 0;
359 # Most important AC_CANONICAL_* macro seen so far.
360 my $seen_canonical = 0;
361 # Location of that macro.
362 my $canonical_location;
364 # Where AM_MAINTAINER_MODE appears.
367 # Actual version we've seen.
368 my $package_version = '';
370 # Where version is defined.
371 my $package_version_location;
373 # TRUE if we've seen AC_ENABLE_MULTILIB.
374 my $seen_multilib = 0;
376 # TRUE if we've seen AM_PROG_CC_C_O
379 # Location of AC_REQUIRE_AUX_FILE calls, indexed by their argument.
380 my %required_aux_file = ();
382 # Where AM_INIT_AUTOMAKE is called;
383 my $seen_init_automake = 0;
385 # TRUE if we've seen AM_AUTOMAKE_VERSION.
386 my $seen_automake_version = 0;
388 # Hash table of discovered configure substitutions. Keys are names,
389 # values are `FILE:LINE' strings which are used by error message
391 my %configure_vars = ();
393 # Ignored configure substitutions (i.e., variables not to be output in
395 my %ignored_configure_vars = ();
397 # Files included by $configure_ac.
398 my @configure_deps = ();
400 # Greatest timestamp of configure's dependencies.
401 my $configure_deps_greatest_timestamp = 0;
403 # Hash table of AM_CONDITIONAL variables seen in configure.
404 my %configure_cond = ();
406 # This maps extensions onto language names.
407 my %extension_map = ();
409 # List of the DIST_COMMON files we discovered while reading
411 my $configure_dist_common = '';
413 # This maps languages names onto objects.
415 # Maps each linker variable onto a language object.
416 my %link_languages = ();
418 # List of targets we must always output.
419 # FIXME: Complete, and remove falsely required targets.
420 my %required_targets =
433 # FIXME: Not required, temporary hacks.
434 # Well, actually they are sort of required: the -recursive
435 # targets will run them anyway...
440 'install-data-am' => 1,
441 'install-exec-am' => 1,
442 'installcheck-am' => 1,
448 # Set to 1 if this run will create the Makefile.in that distribute
449 # the files in config_aux_dir.
450 my $automake_will_process_aux_dir = 0;
452 # The name of the Makefile currently being processed.
456 ################################################################
458 ## ------------------------------------------ ##
459 ## Variables reset by &initialize_per_input. ##
460 ## ------------------------------------------ ##
462 # Basename and relative dir of the input file.
466 # Same but wrt Makefile.in.
470 # Relative path to the top directory.
473 # Greatest timestamp of the output's dependencies (excluding
474 # configure's dependencies).
475 my $output_deps_greatest_timestamp;
477 # These two variables are used when generating each Makefile.in.
478 # They hold the Makefile.in until it is ready to be printed.
485 # This is the conditional stack, updated on if/else/endif, and
486 # used to build Condition objects.
489 # This holds the set of included files.
492 # List of dependencies for the obvious targets.
497 # Keys in this hash table are files to delete. The associated
498 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
501 # Keys in this hash table are object files or other files in
502 # subdirectories which need to be removed. This only holds files
503 # which are created by compilations. The value in the hash indicates
504 # when the file should be removed.
505 my %compile_clean_files;
507 # Keys in this hash table are directories where we expect to build a
508 # libtool object. We use this information to decide what directories
510 my %libtool_clean_directories;
512 # Value of `$(SOURCES)', used by tags.am.
514 # Sources which go in the distribution.
517 # This hash maps object file names onto their corresponding source
518 # file names. This is used to ensure that each object is created
519 # by a single source file.
522 # This hash maps object file names onto an integer value representing
523 # whether this object has been built via ordinary compilation or
524 # libtool compilation (the COMPILE_* constants).
525 my %object_compilation_map;
528 # This keeps track of the directories for which we've already
529 # created dirstamp code. Keys are directories, values are stamp files.
530 # Several keys can share the same stamp files if they are equivalent
531 # (as are `.//foo' and `foo').
537 # This is a list of all targets to run during "make dist".
540 # Keep track of all programs declared in this Makefile, without
541 # $(EXEEXT). @substitution@ are not listed.
544 # Keys in this hash are the basenames of files which must depend on
545 # ansi2knr. Values are either the empty string, or the directory in
546 # which the ANSI source file appears; the directory must have a
550 # This is the name of the redirect `all' target to use.
553 # This keeps track of which extensions we've seen (that we care
557 # This is random scratch space for the language finish functions.
558 # Don't randomly overwrite it; examine other uses of keys first.
559 my %language_scratch;
561 # We keep track of which objects need special (per-executable)
562 # handling on a per-language basis.
563 my %lang_specific_files;
565 # This is set when `handle_dist' has finished. Once this happens,
566 # we should no longer push on dist_common.
569 # Used to store a set of linkers needed to generate the sources currently
570 # under consideration.
573 # True if we need `LINK' defined. This is a hack.
576 # Was get_object_extension run?
577 # FIXME: This is a hack. a better switch should be found.
578 my $get_object_extension_was_run;
580 # Record each file processed by make_paragraphs.
581 my %transformed_files;
583 # Cache each file processed by make_paragraphs.
584 # (This is different from %transformed_files because
585 # %transformed_files is reset for each file while %am_file_cache
586 # it global to the run.)
589 ################################################################
591 # var_SUFFIXES_trigger ($TYPE, $VALUE)
592 # ------------------------------------
593 # This is called by Automake::Variable::define() when SUFFIXES
594 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
595 # The work here needs to be performed as a side-effect of the
596 # macro_define() call because SUFFIXES definitions impact
597 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
599 sub var_SUFFIXES_trigger ($$)
601 my ($type, $value) = @_;
602 accept_extensions (split (' ', $value));
604 Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
606 ################################################################
608 ## --------------------------------- ##
609 ## Forward subroutine declarations. ##
610 ## --------------------------------- ##
611 sub register_language (%);
612 sub file_contents_internal ($$$%);
613 sub define_files_variable ($\@$$);
616 # &initialize_per_input ()
617 # ------------------------
618 # (Re)-Initialize per-Makefile.am variables.
619 sub initialize_per_input ()
621 reset_local_duplicates ();
624 $am_relative_dir = '';
629 $output_deps_greatest_timestamp = 0;
633 $output_trailer = '';
637 Automake::Options::reset;
638 Automake::Variable::reset;
639 Automake::Rule::reset;
655 %object_compilation_map = ();
663 %known_programs = ();
669 %extension_seen = ();
671 %language_scratch = ();
673 %lang_specific_files = ();
675 $handle_dist_run = 0;
679 $get_object_extension_was_run = 0;
681 %compile_clean_files = ();
683 # We always include `.'. This isn't strictly correct.
684 %libtool_clean_directories = ('.' => 1);
686 %transformed_files = ();
690 ################################################################
692 # Initialize our list of languages that are internally supported.
695 register_language ('name' => 'c',
697 'config_vars' => ['CC'],
700 'flags' => ['CFLAGS', 'CPPFLAGS'],
701 'compiler' => 'COMPILE',
702 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
706 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
707 'compile_flag' => '-c',
708 'libtool_tag' => 'CC',
709 'extensions' => ['.c'],
710 '_finish' => \&lang_c_finish);
713 register_language ('name' => 'cxx',
715 'config_vars' => ['CXX'],
716 'linker' => 'CXXLINK',
717 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
719 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
720 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
721 'compiler' => 'CXXCOMPILE',
722 'compile_flag' => '-c',
723 'output_flag' => '-o',
724 'libtool_tag' => 'CXX',
728 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
731 register_language ('name' => 'objc',
732 'Name' => 'Objective C',
733 'config_vars' => ['OBJC'],
734 'linker' => 'OBJCLINK',
735 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
737 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
738 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
739 'compiler' => 'OBJCCOMPILE',
740 'compile_flag' => '-c',
741 'output_flag' => '-o',
745 'extensions' => ['.m']);
747 # Unified Parallel C.
748 register_language ('name' => 'upc',
749 'Name' => 'Unified Parallel C',
750 'config_vars' => ['UPC'],
751 'linker' => 'UPCLINK',
752 'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
754 'flags' => ['UPCFLAGS', 'CPPFLAGS'],
755 'compile' => '$(UPC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_UPCFLAGS) $(UPCFLAGS)',
756 'compiler' => 'UPCCOMPILE',
757 'compile_flag' => '-c',
758 'output_flag' => '-o',
762 'extensions' => ['.upc']);
765 register_language ('name' => 'header',
767 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
770 'output_extensions' => sub { return () },
772 '_finish' => sub { });
775 register_language ('name' => 'yacc',
777 'config_vars' => ['YACC'],
778 'flags' => ['YFLAGS'],
779 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
780 'compiler' => 'YACCCOMPILE',
781 'extensions' => ['.y'],
782 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
784 'rule_file' => 'yacc',
785 '_finish' => \&lang_yacc_finish,
786 '_target_hook' => \&lang_yacc_target_hook,
787 'nodist_specific' => 1);
788 register_language ('name' => 'yaccxx',
789 'Name' => 'Yacc (C++)',
790 'config_vars' => ['YACC'],
791 'rule_file' => 'yacc',
792 'flags' => ['YFLAGS'],
793 'compiler' => 'YACCCOMPILE',
794 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
795 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
796 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
798 '_finish' => \&lang_yacc_finish,
799 '_target_hook' => \&lang_yacc_target_hook,
800 'nodist_specific' => 1);
803 register_language ('name' => 'lex',
805 'config_vars' => ['LEX'],
806 'rule_file' => 'lex',
807 'flags' => ['LFLAGS'],
808 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
809 'compiler' => 'LEXCOMPILE',
810 'extensions' => ['.l'],
811 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
813 '_finish' => \&lang_lex_finish,
814 '_target_hook' => \&lang_lex_target_hook,
815 'nodist_specific' => 1);
816 register_language ('name' => 'lexxx',
817 'Name' => 'Lex (C++)',
818 'config_vars' => ['LEX'],
819 'rule_file' => 'lex',
820 'flags' => ['LFLAGS'],
821 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
822 'compiler' => 'LEXCOMPILE',
823 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
824 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
826 '_finish' => \&lang_lex_finish,
827 '_target_hook' => \&lang_lex_target_hook,
828 'nodist_specific' => 1);
831 register_language ('name' => 'asm',
832 'Name' => 'Assembler',
833 'config_vars' => ['CCAS', 'CCASFLAGS'],
835 'flags' => ['CCASFLAGS'],
836 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
837 # or anything else required. They can also set CCAS.
838 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
839 'compiler' => 'CCASCOMPILE',
840 'compile_flag' => '-c',
841 'extensions' => ['.s'],
843 # With assembly we still use the C linker.
844 '_finish' => \&lang_c_finish);
846 # Preprocessed Assembler.
847 register_language ('name' => 'cppasm',
848 'Name' => 'Preprocessed Assembler',
849 'config_vars' => ['CCAS', 'CCASFLAGS'],
852 'flags' => ['CCASFLAGS', 'CPPFLAGS'],
853 # Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
854 # or anything else required beyond AM_CPPFLAGS. They
856 'compile' => '$(CCAS) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS)',
857 'compiler' => 'CPPASCOMPILE',
858 'compile_flag' => '-c',
859 'extensions' => ['.S'],
861 # With assembly we still use the C linker.
862 '_finish' => \&lang_c_finish);
865 register_language ('name' => 'f77',
866 'Name' => 'Fortran 77',
867 'linker' => 'F77LINK',
868 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
869 'flags' => ['FFLAGS'],
870 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
871 'compiler' => 'F77COMPILE',
872 'compile_flag' => '-c',
873 'output_flag' => '-o',
874 'libtool_tag' => 'F77',
878 'extensions' => ['.f', '.for']);
881 register_language ('name' => 'fc',
883 'linker' => 'FCLINK',
884 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
885 'flags' => ['FCFLAGS'],
886 'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
887 'compiler' => 'FCCOMPILE',
888 'compile_flag' => '-c',
889 'output_flag' => '-o',
893 'extensions' => ['.f90', '.f95']);
895 # Preprocessed Fortran
896 register_language ('name' => 'ppfc',
897 'Name' => 'Preprocessed Fortran',
898 'config_vars' => ['FC'],
899 'linker' => 'FCLINK',
900 'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
903 'flags' => ['FCFLAGS', 'CPPFLAGS'],
904 'compiler' => 'PPFCCOMPILE',
905 'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
906 'compile_flag' => '-c',
907 'output_flag' => '-o',
908 'libtool_tag' => 'FC',
910 'extensions' => ['.F90','.F95']);
912 # Preprocessed Fortran 77
914 # The current support for preprocessing Fortran 77 just involves
915 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
916 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
917 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
918 # for `make' Version 3.76 Beta' (specifically, from info file
919 # `(make)Catalogue of Rules').
921 # A better approach would be to write an Autoconf test
922 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
923 # Fortran 77 compilers know how to do preprocessing. The Autoconf
924 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
925 # preprocessing capabilities, and then fall back on cpp (if cpp were
927 register_language ('name' => 'ppf77',
928 'Name' => 'Preprocessed Fortran 77',
929 'config_vars' => ['F77'],
930 'linker' => 'F77LINK',
931 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
934 'flags' => ['FFLAGS', 'CPPFLAGS'],
935 'compiler' => 'PPF77COMPILE',
936 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
937 'compile_flag' => '-c',
938 'output_flag' => '-o',
939 'libtool_tag' => 'F77',
941 'extensions' => ['.F']);
944 register_language ('name' => 'ratfor',
946 'config_vars' => ['F77'],
947 'linker' => 'F77LINK',
948 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
951 'flags' => ['RFLAGS', 'FFLAGS'],
953 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
954 'compiler' => 'RCOMPILE',
955 'compile_flag' => '-c',
956 'output_flag' => '-o',
957 'libtool_tag' => 'F77',
959 'extensions' => ['.r']);
962 register_language ('name' => 'java',
964 'config_vars' => ['GCJ'],
965 'linker' => 'GCJLINK',
966 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
968 'flags' => ['GCJFLAGS'],
969 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
970 'compiler' => 'GCJCOMPILE',
971 'compile_flag' => '-c',
972 'output_flag' => '-o',
973 'libtool_tag' => 'GCJ',
977 'extensions' => ['.java', '.class', '.zip', '.jar']);
979 ################################################################
981 # Error reporting functions.
983 # err_am ($MESSAGE, [%OPTIONS])
984 # -----------------------------
985 # Uncategorized errors about the current Makefile.am.
988 msg_am ('error', @_);
991 # err_ac ($MESSAGE, [%OPTIONS])
992 # -----------------------------
993 # Uncategorized errors about configure.ac.
996 msg_ac ('error', @_);
999 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
1000 # ---------------------------------------
1001 # Messages about about the current Makefile.am.
1004 my ($channel, $msg, %opts) = @_;
1005 msg $channel, "${am_file}.am", $msg, %opts;
1008 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
1009 # ---------------------------------------
1010 # Messages about about configure.ac.
1013 my ($channel, $msg, %opts) = @_;
1014 msg $channel, $configure_ac, $msg, %opts;
1017 ################################################################
1021 # Return a configure-style substitution using the indicated text.
1022 # We do this to avoid having the substitutions directly in automake.in;
1023 # when we do that they are sometimes removed and this causes confusion
1028 return '@' . $text . '@';
1031 ################################################################
1035 # &backname ($REL-DIR)
1036 # --------------------
1037 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1038 # For instance `src/foo' => `../..'.
1039 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1044 foreach (split (/\//, $file))
1046 next if $_ eq '.' || $_ eq '';
1056 return join ('/', @res) || '.';
1059 ################################################################
1062 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1065 my $var = var ('AUTOMAKE_OPTIONS');
1068 if ($var->has_conditional_contents)
1070 msg_var ('unsupported', $var,
1071 "`AUTOMAKE_OPTIONS' cannot have conditional contents");
1073 foreach my $locvals ($var->value_as_list_recursive (cond_filter => TRUE,
1076 my ($loc, $value) = @$locvals;
1077 return 1 if (process_option_list ($loc, $value))
1081 if ($strictness == GNITS)
1083 set_option ('readme-alpha', INTERNAL);
1084 set_option ('std-options', INTERNAL);
1085 set_option ('check-news', INTERNAL);
1091 # shadow_unconditionally ($varname, $where)
1092 # -----------------------------------------
1093 # Return a $(variable) that contains all possible values
1094 # $varname can take.
1095 # If the VAR wasn't defined conditionally, return $(VAR).
1096 # Otherwise we create a am__VAR_DIST variable which contains
1097 # all possible values, and return $(am__VAR_DIST).
1098 sub shadow_unconditionally ($$)
1100 my ($varname, $where) = @_;
1101 my $var = var $varname;
1102 if ($var->has_conditional_contents)
1104 $varname = "am__${varname}_DIST";
1105 my @files = uniq ($var->value_as_list_recursive);
1106 define_pretty_variable ($varname, TRUE, $where, @files);
1108 return "\$($varname)"
1111 # get_object_extension ($EXTENSION)
1112 # ---------------------------------
1113 # Prefix $EXTENSION with $U if ansi2knr is in use.
1114 sub get_object_extension ($)
1116 my ($extension) = @_;
1118 # Check for automatic de-ANSI-fication.
1119 $extension = '$U' . $extension
1120 if option 'ansi2knr';
1122 $get_object_extension_was_run = 1;
1127 # check_user_variables (@LIST)
1128 # ----------------------------
1129 # Make sure each variable VAR in @LIST do not exist, suggest using AM_VAR
1131 sub check_user_variables (@)
1133 my @dont_override = @_;
1134 foreach my $flag (@dont_override)
1136 my $var = var $flag;
1139 for my $cond ($var->conditions->conds)
1141 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1143 msg_cond_var ('gnu', $cond, $flag,
1144 "`$flag' is a user variable, "
1145 . "you should not override it;\n"
1146 . "use `AM_$flag' instead.");
1153 # Call finish function for each language that was used.
1154 sub handle_languages
1156 if (! option 'no-dependencies')
1158 # Include auto-dep code. Don't include it if DEP_FILES would
1160 if (&saw_sources_p (0) && keys %dep_files)
1162 # Set location of depcomp.
1163 &define_variable ('depcomp',
1164 "\$(SHELL) $am_config_aux_dir/depcomp",
1166 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1168 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1170 my @deplist = sort keys %dep_files;
1171 # Generate each `include' individually. Irix 6 make will
1172 # not properly include several files resulting from a
1173 # variable expansion; generating many separate includes
1175 $output_rules .= "\n";
1176 foreach my $iter (@deplist)
1178 $output_rules .= (subst ('AMDEP_TRUE')
1179 . subst ('am__include')
1181 . subst ('am__quote')
1183 . subst ('am__quote')
1187 # Compute the set of directories to remove in distclean-depend.
1188 my @depdirs = uniq (map { dirname ($_) } @deplist);
1189 $output_rules .= &file_contents ('depend',
1190 new Automake::Location,
1191 DEPDIRS => "@depdirs");
1196 &define_variable ('depcomp', '', INTERNAL);
1197 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1202 # Is the c linker needed?
1204 foreach my $ext (sort keys %extension_seen)
1206 next unless $extension_map{$ext};
1208 my $lang = $languages{$extension_map{$ext}};
1210 my $rule_file = $lang->rule_file || 'depend2';
1212 # Get information on $LANG.
1213 my $pfx = $lang->autodep;
1214 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1216 my ($AMDEP, $FASTDEP) =
1217 (option 'no-dependencies' || $lang->autodep eq 'no')
1218 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1220 my %transform = ('EXT' => $ext,
1224 'FASTDEP' => $FASTDEP,
1225 '-c' => $lang->compile_flag || '',
1227 => (count_files_for_language ($lang->name) > 1),
1228 # These are not used, but they need to be defined
1229 # so &transform do not complain.
1231 'DERIVED-EXT' => 'BUG',
1235 # Generate the appropriate rules for this extension.
1236 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1237 || defined $lang->compile)
1239 # Some C compilers don't support -c -o. Use it only if really
1241 my $output_flag = $lang->output_flag || '';
1244 && $lang->name eq 'c'
1245 && option 'subdir-objects');
1247 # Compute a possible derived extension.
1248 # This is not used by depend2.am.
1249 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1251 # When we output an inference rule like `.c.o:' we
1252 # have two cases to consider: either subdir-objects
1253 # is used, or it is not.
1255 # In the latter case the rule is used to build objects
1256 # in the current directory, and dependencies always
1257 # go into `./$(DEPDIR)/'. We can hard-code this value.
1259 # In the former case the rule can be used to build
1260 # objects in sub-directories too. Dependencies should
1261 # go into the appropriate sub-directories, e.g.,
1262 # `sub/$(DEPDIR)/'. The value of this directory
1263 # need the be computed on-the-fly.
1265 # DEPBASE holds the name of this directory, plus the
1266 # basename part of the object file (extensions Po, TPo,
1267 # Plo, TPlo will be added later as appropriate). It is
1268 # either hardcoded, or a shell variable (`$depbase') that
1269 # will be computed by the rule.
1271 option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
1273 file_contents ($rule_file,
1274 new Automake::Location,
1278 'DERIVED-EXT' => $der_ext,
1280 DEPBASE => $depbase,
1287 COMPILE => '$(' . $lang->compiler . ')',
1288 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1290 SUBDIROBJ => !! option 'subdir-objects');
1293 # Now include code for each specially handled object with this
1295 my %seen_files = ();
1296 foreach my $file (@{$lang_specific_files{$lang->name}})
1298 my ($derived, $source, $obj, $myext, %file_transform) = @$file;
1300 # We might see a given object twice, for instance if it is
1301 # used under different conditions.
1302 next if defined $seen_files{$obj};
1303 $seen_files{$obj} = 1;
1305 prog_error ("found " . $lang->name .
1306 " in handle_languages, but compiler not defined")
1307 unless defined $lang->compile;
1309 my $obj_compile = $lang->compile;
1311 # Rewrite each occurrence of `AM_$flag' in the compile
1312 # rule into `${derived}_$flag' if it exists.
1313 for my $flag (@{$lang->flags})
1315 my $val = "${derived}_$flag";
1316 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1320 my $libtool_tag = '';
1321 if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
1323 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
1326 my $ptltflags = "${derived}_LIBTOOLFLAGS";
1327 $ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
1330 "\$(LIBTOOL) $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
1331 . "--mode=compile $obj_compile";
1333 # We _need_ `-o' for per object rules.
1334 my $output_flag = $lang->output_flag || '-o';
1336 my $depbase = dirname ($obj);
1340 unless $depbase eq '';
1341 $depbase .= '$(DEPDIR)/' . basename ($obj);
1343 # Support for deansified files in subdirectories is ugly
1344 # enough to deserve an explanation.
1346 # A Note about normal ansi2knr processing first. On
1348 # AUTOMAKE_OPTIONS = ansi2knr
1349 # bin_PROGRAMS = foo
1350 # foo_SOURCES = foo.c
1352 # we generate rules similar to:
1354 # foo: foo$U.o; link ...
1355 # foo$U.o: foo$U.c; compile ...
1356 # foo_.c: foo.c; ansi2knr ...
1358 # this is fairly compact, and will call ansi2knr depending
1359 # on the value of $U (`' or `_').
1361 # It's harder with subdir sources. On
1363 # AUTOMAKE_OPTIONS = ansi2knr
1364 # bin_PROGRAMS = foo
1365 # foo_SOURCES = sub/foo.c
1367 # we have to create foo_.c in the current directory.
1368 # (Unless the user asks 'subdir-objects'.) This is important
1369 # in case the same file (`foo.c') is compiled from other
1370 # directories with different cpp options: foo_.c would
1371 # be preprocessed for only one set of options if it were
1372 # put in the subdirectory.
1374 # Because foo$U.o must be built from either foo_.c or
1375 # sub/foo.c we can't be as concise as in the first example.
1378 # foo: foo$U.o; link ...
1379 # foo_.o: foo_.c; compile ...
1380 # foo.o: sub/foo.c; compile ...
1381 # foo_.c: foo.c; ansi2knr ...
1383 # This is why we'll now transform $rule_file twice
1384 # if we detect this case.
1385 # A first time we output the compile rule with `$U'
1386 # replaced by `_' and the source directory removed,
1387 # and another time we simply remove `$U'.
1389 # Note that at this point $source (as computed by
1390 # &handle_single_transform) is `sub/foo$U.c'.
1391 # This can be confusing: it can be used as-is when
1392 # subdir-objects is set, otherwise you have to know
1393 # it really means `foo_.c' or `sub/foo.c'.
1394 my $objdir = dirname ($obj);
1395 my $srcdir = dirname ($source);
1396 if ($lang->ansi && $obj =~ /\$U/)
1398 prog_error "`$obj' contains \$U, but `$source' doesn't."
1399 if $source !~ /\$U/;
1401 (my $source_ = $source) =~ s/\$U/_/g;
1402 # Output an additional rule if _.c and .c are not in
1403 # the same directory. (_.c is always in $objdir.)
1404 if ($objdir ne $srcdir)
1406 (my $obj_ = $obj) =~ s/\$U/_/g;
1407 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1408 $source_ = basename ($source_);
1411 file_contents ($rule_file,
1412 new Automake::Location,
1416 DEPBASE => $depbase_,
1419 OBJ => "$obj_$myext",
1420 OBJOBJ => "$obj_.obj",
1421 LTOBJ => "$obj_.lo",
1423 COMPILE => $obj_compile,
1424 LTCOMPILE => $obj_ltcompile,
1428 $depbase =~ s/\$U//g;
1429 $source =~ s/\$U//g;
1434 file_contents ($rule_file,
1435 new Automake::Location,
1439 DEPBASE => $depbase,
1442 # Use $myext and not `.o' here, in case
1443 # we are actually building a new source
1444 # file -- e.g. via yacc.
1445 OBJ => "$obj$myext",
1446 OBJOBJ => "$obj.obj",
1449 COMPILE => $obj_compile,
1450 LTCOMPILE => $obj_ltcompile,
1455 # The rest of the loop is done once per language.
1456 next if defined $done{$lang};
1459 # Load the language dependent Makefile chunks.
1460 my %lang = map { uc ($_) => 0 } keys %languages;
1461 $lang{uc ($lang->name)} = 1;
1462 $output_rules .= file_contents ('lang-compile',
1463 new Automake::Location,
1466 # If the source to a program consists entirely of code from a
1467 # `pure' language, for instance C++ or Fortran 77, then we
1468 # don't need the C compiler code. However if we run into
1469 # something unusual then we do generate the C code. There are
1470 # probably corner cases here that do not work properly.
1471 # People linking Java code to Fortran code deserve pain.
1472 $needs_c ||= ! $lang->pure;
1474 define_compiler_variable ($lang)
1475 if ($lang->compile);
1477 define_linker_variable ($lang)
1480 require_variables ("$am_file.am", $lang->Name . " source seen",
1481 TRUE, @{$lang->config_vars});
1483 # Call the finisher.
1486 # Flags listed in `->flags' are user variables (per GNU Standards),
1487 # they should not be overridden in the Makefile...
1488 my @dont_override = @{$lang->flags};
1489 # ... and so is LDFLAGS.
1490 push @dont_override, 'LDFLAGS' if $lang->link;
1492 check_user_variables @dont_override;
1495 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1496 # suffix rule was learned), don't bother with the C stuff. But if
1497 # anything else creeps in, then use it.
1499 if $need_link || suffix_rules_count > 1;
1503 &define_compiler_variable ($languages{'c'})
1504 unless defined $done{$languages{'c'}};
1505 define_linker_variable ($languages{'c'});
1510 # append_exeext { PREDICATE } $MACRO
1511 # ----------------------------------
1512 # Append $(EXEEXT) to each filename in $F appearing in the Makefile
1513 # variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
1516 # This is typically used on all filenames of *_PROGRAMS, and filenames
1517 # of TESTS that are programs.
1518 sub append_exeext (&$)
1520 my ($pred, $macro) = @_;
1522 transform_variable_recursively
1523 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
1525 my ($subvar, $val, $cond, $full_cond) = @_;
1526 # Append $(EXEEXT) unless the user did it already, or it's a
1529 if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
1535 # Check to make sure a source defined in LIBOBJS is not explicitly
1536 # mentioned. This is a separate function (as opposed to being inlined
1537 # in handle_source_transform) because it isn't always appropriate to
1539 sub check_libobjs_sources
1541 my ($one_file, $unxformed) = @_;
1543 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1544 'dist_EXTRA_', 'nodist_EXTRA_')
1547 my $varname = $prefix . $one_file . '_SOURCES';
1548 my $var = var ($varname);
1551 @files = $var->value_as_list_recursive;
1553 elsif ($prefix eq '')
1555 @files = ($unxformed . '.c');
1562 foreach my $file (@files)
1564 err_var ($prefix . $one_file . '_SOURCES',
1565 "automatically discovered file `$file' should not" .
1566 " be explicitly mentioned")
1567 if defined $libsources{$file};
1574 # handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
1575 # -----------------------------------------------------------------------------
1576 # Does much of the actual work for handle_source_transform.
1578 # $VAR is the name of the variable that the source filenames come from
1579 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1580 # $DERIVED is the name of resulting executable or library
1581 # $OBJ is the object extension (e.g., `$U.lo')
1582 # $FILE the source file to transform
1583 # %TRANSFORM contains extras arguments to pass to file_contents
1584 # when producing explicit rules
1585 # Result is a list of the names of objects
1586 # %linkers_used will be updated with any linkers needed
1587 sub handle_single_transform ($$$$$%)
1589 my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
1590 my @files = ($_file);
1592 my $nonansi_obj = $obj;
1593 $nonansi_obj =~ s/\$U//g;
1595 # Turn sources into objects. We use a while loop like this
1596 # because we might add to @files in the loop.
1597 while (scalar @files > 0)
1601 # Configure substitutions in _SOURCES variables are errors.
1604 my $parent_msg = '';
1605 $parent_msg = "\nand is referred to from `$topparent'"
1606 if $topparent ne $var->name;
1608 "`" . $var->name . "' includes configure substitution `$_'"
1609 . $parent_msg . ";\nconfigure " .
1610 "substitutions are not allowed in _SOURCES variables");
1614 # If the source file is in a subdirectory then the `.o' is put
1615 # into the current directory, unless the subdir-objects option
1618 # Split file name into base and extension.
1619 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1621 my $directory = $1 || '';
1625 # We must generate a rule for the object if it requires its own flags.
1627 my ($linker, $object);
1629 # This records whether we've seen a derived source file (e.g.
1631 my $derived_source = 0;
1633 # This holds the `aggregate context' of the file we are
1634 # currently examining. If the file is compiled with
1635 # per-object flags, then it will be the name of the object.
1636 # Otherwise it will be `AM'. This is used by the target hook
1637 # language function.
1638 my $aggregate = 'AM';
1640 $extension = &derive_suffix ($extension, $nonansi_obj);
1642 if ($extension_map{$extension} &&
1643 ($lang = $languages{$extension_map{$extension}}))
1645 # Found the language, so see what it says.
1646 &saw_extension ($extension);
1648 # Do we have per-executable flags for this executable?
1649 my $have_per_exec_flags = 0;
1650 my @peflags = @{$lang->flags};
1651 push @peflags, 'LIBTOOLFLAGS' if $nonansi_obj eq '.lo';
1652 foreach my $flag (@peflags)
1654 if (set_seen ("${derived}_$flag"))
1656 $have_per_exec_flags = 1;
1661 # Note: computed subr call. The language rewrite function
1662 # should return one of the LANG_* constants. It could
1663 # also return a list whose first value is such a constant
1664 # and whose second value is a new source extension which
1665 # should be applied. This means this particular language
1666 # generates another source file which we must then process
1668 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1669 my ($r, $source_extension)
1670 = &$subr ($directory, $base, $extension,
1671 $nonansi_obj, $have_per_exec_flags, $var);
1672 # Skip this entry if we were asked not to process it.
1673 next if $r == LANG_IGNORE;
1675 # Now extract linker and other info.
1676 $linker = $lang->linker;
1679 if (defined $source_extension)
1681 $this_obj_ext = $source_extension;
1682 $derived_source = 1;
1686 $this_obj_ext = $obj;
1690 $this_obj_ext = $nonansi_obj;
1692 $object = $base . $this_obj_ext;
1694 if ($have_per_exec_flags)
1696 # We have a per-executable flag in effect for this
1697 # object. In this case we rewrite the object's
1698 # name to ensure it is unique.
1700 # We choose the name `DERIVED_OBJECT' to ensure
1701 # (1) uniqueness, and (2) continuity between
1702 # invocations. However, this will result in a
1703 # name that is too long for losing systems, in
1704 # some situations. So we provide _SHORTNAME to
1707 my $dname = $derived;
1708 my $var = var ($derived . '_SHORTNAME');
1711 # FIXME: should use the same Condition as
1712 # the _SOURCES variable. But this is really
1713 # silly overkill -- nobody should have
1714 # conditional shortnames.
1715 $dname = $var->variable_value;
1717 $object = $dname . '-' . $object;
1719 prog_error ($lang->name . " flags defined without compiler")
1720 if ! defined $lang->compile;
1725 # If rewrite said it was ok, put the object into a
1727 if ($r == LANG_SUBDIR && $directory ne '')
1729 $object = $directory . '/' . $object;
1732 # If the object file has been renamed (because per-target
1733 # flags are used) we cannot compile the file with an
1734 # inference rule: we need an explicit rule.
1736 # If the source is in a subdirectory and the object is in
1737 # the current directory, we also need an explicit rule.
1739 # If both source and object files are in a subdirectory
1740 # (this happens when the subdir-objects option is used),
1741 # then the inference will work.
1743 # The latter case deserves a historical note. When the
1744 # subdir-objects option was added on 1999-04-11 it was
1745 # thought that inferences rules would work for
1746 # subdirectory objects too. Later, on 1999-11-22,
1747 # automake was changed to output explicit rules even for
1748 # subdir-objects. Nobody remembers why, but this occured
1749 # soon after the merge of the user-dep-gen-branch so it
1750 # might be related. In late 2003 people complained about
1751 # the size of the generated Makefile.ins (libgcj, with
1752 # 2200+ subdir objects was reported to have a 9MB
1753 # Makefile), so we now rely on inference rules again.
1754 # Maybe we'll run across the same issue as in the past,
1755 # but at least this time we can document it. However since
1756 # dependency tracking has evolved it is possible that
1757 # our old problem no longer exists.
1758 # Using inference rules for subdir-objects has been tested
1759 # with GNU make, Solaris make, Ultrix make, BSD make,
1760 # HP-UX make, and OSF1 make successfully.
1762 || ($directory ne '' && ! option 'subdir-objects')
1763 # We must also use specific rules for a nodist_ source
1764 # if its language requests it.
1765 || ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
1767 my $obj_sans_ext = substr ($object, 0,
1768 - length ($this_obj_ext));
1769 my $full_ansi = $full;
1770 if ($lang->ansi && option 'ansi2knr')
1772 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1773 $obj_sans_ext .= '$U';
1776 my @specifics = ($full_ansi, $obj_sans_ext,
1777 # Only use $this_obj_ext in the derived
1778 # source case because in the other case we
1779 # *don't* want $(OBJEXT) to appear here.
1780 ($derived_source ? $this_obj_ext : '.o'));
1782 # If we renamed the object then we want to use the
1783 # per-executable flag name. But if this is simply a
1784 # subdir build then we still want to use the AM_ flag
1788 unshift @specifics, $derived;
1789 $aggregate = $derived;
1793 unshift @specifics, 'AM';
1796 # Each item on this list is a reference to a list consisting
1797 # of four values followed by additional transform flags for
1798 # file_contents. The four values are the derived flag prefix
1799 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1800 # source file, the base name of the output file, and
1801 # the extension for the object file.
1802 push (@{$lang_specific_files{$lang->name}},
1803 [@specifics, %transform]);
1806 elsif ($extension eq $nonansi_obj)
1808 # This is probably the result of a direct suffix rule.
1809 # In this case we just accept the rewrite.
1810 $object = "$base$extension";
1811 $object = "$directory/$object" if $directory ne '';
1816 # No error message here. Used to have one, but it was
1818 # FIXME: we could potentially do more processing here,
1819 # perhaps treating the new extension as though it were a
1820 # new source extension (as above). This would require
1821 # more restructuring than is appropriate right now.
1825 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1826 if (defined $object_map{$object}
1827 && $object_map{$object} ne $full);
1829 my $comp_val = (($object =~ /\.lo$/)
1830 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1831 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1832 if (defined $object_compilation_map{$comp_obj}
1833 && $object_compilation_map{$comp_obj} != 0
1834 # Only see the error once.
1835 && ($object_compilation_map{$comp_obj}
1836 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1837 && $object_compilation_map{$comp_obj} != $comp_val)
1839 err_am "object `$comp_obj' created both with libtool and without";
1841 $object_compilation_map{$comp_obj} |= $comp_val;
1845 # Let the language do some special magic if required.
1846 $lang->target_hook ($aggregate, $object, $full, %transform);
1849 if ($derived_source)
1851 prog_error ($lang->name . " has automatic dependency tracking")
1852 if $lang->autodep ne 'no';
1853 # Make sure this new source file is handled next. That will
1854 # make it appear to be at the right place in the list.
1855 unshift (@files, $object);
1856 # Distribute derived sources unless the source they are
1857 # derived from is not.
1858 &push_dist_common ($object)
1859 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1863 $linkers_used{$linker} = 1;
1865 push (@result, $object);
1867 if (! defined $object_map{$object})
1870 $object_map{$object} = $full;
1872 # If resulting object is in subdir, we need to make
1873 # sure the subdir exists at build time.
1874 if ($object =~ /\//)
1876 # FIXME: check that $DIRECTORY is somewhere in the
1879 # For Java, the way we're handling it right now, a
1880 # `..' component doesn't make sense.
1881 if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1883 err_am "`$full' should not contain a `..' component";
1886 # Make sure object is removed by `make mostlyclean'.
1887 $compile_clean_files{$object} = MOSTLY_CLEAN;
1888 # If we have a libtool object then we also must remove
1890 if ($object =~ /\.lo$/)
1892 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1893 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1895 # Remove any libtool object in this directory.
1896 $libtool_clean_directories{$directory} = 1;
1899 push (@dep_list, require_build_directory ($directory));
1901 # If we're generating dependencies, we also want
1902 # to make sure that the appropriate subdir of the
1903 # .deps directory is created.
1905 require_build_directory ($directory . '/$(DEPDIR)'))
1906 unless option 'no-dependencies';
1909 &pretty_print_rule ($object . ':', "\t", @dep_list)
1910 if scalar @dep_list > 0;
1913 # Transform .o or $o file into .P file (for automatic
1915 if ($lang && $lang->autodep ne 'no')
1917 my $depfile = $object;
1918 $depfile =~ s/\.([^.]*)$/.P$1/;
1919 $depfile =~ s/\$\(OBJEXT\)$/o/;
1920 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1921 . basename ($depfile)} = 1;
1930 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1931 # $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
1932 # ---------------------------------------------------------------------------
1933 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1936 # $VAR is the name of the _SOURCES variable
1937 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1938 # it will be generated and returned).
1939 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1940 # work done to determine the linker will be).
1941 # $ONE_FILE is the canonical (transformed) name of object to build
1942 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1943 # $TOPPARENT is the _SOURCES variable being processed.
1944 # $WHERE context into which this definition is done
1945 # %TRANSFORM extra arguments to pass to file_contents when producing
1948 # Result is a pair ($LINKER, $OBJVAR):
1949 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1950 sub define_objects_from_sources ($$$$$$$%)
1952 my ($var, $objvar, $nodefine, $one_file,
1953 $obj, $topparent, $where, %transform) = @_;
1955 my $needlinker = "";
1957 transform_variable_recursively
1958 ($var, $objvar, 'am__objects', $nodefine, $where,
1959 # The transform code to run on each filename.
1961 my ($subvar, $val, $cond, $full_cond) = @_;
1962 my @trans = handle_single_transform ($subvar, $topparent,
1963 $one_file, $obj, $val,
1965 $needlinker = "true" if @trans;
1973 # handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
1974 # -----------------------------------------------------------------------------
1975 # Handle SOURCE->OBJECT transform for one program or library.
1977 # canonical (transformed) name of target to build
1978 # actual target of object to build
1979 # object extension (i.e., either `.o' or `$o')
1980 # location of the source variable
1981 # extra arguments to pass to file_contents when producing rules
1982 # Return the name of the linker variable that must be used.
1983 # Empty return means just use `LINK'.
1984 sub handle_source_transform ($$$$%)
1986 # one_file is canonical name. unxformed is given name. obj is
1988 my ($one_file, $unxformed, $obj, $where, %transform) = @_;
1992 # No point in continuing if _OBJECTS is defined.
1993 return if reject_var ($one_file . '_OBJECTS',
1994 $one_file . '_OBJECTS should not be defined');
1999 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2000 'dist_EXTRA_', 'nodist_EXTRA_')
2002 my $varname = $prefix . $one_file . "_SOURCES";
2003 my $var = var $varname;
2006 # We are going to define _OBJECTS variables using the prefix.
2007 # Then we glom them all together. So we can't use the null
2008 # prefix here as we need it later.
2009 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2011 # Keep track of which prefixes we saw.
2012 $used_pfx{$xpfx} = 1
2013 unless $prefix =~ /EXTRA_/;
2015 push @sources, "\$($varname)";
2016 push @dist_sources, shadow_unconditionally ($varname, $where)
2017 unless (option ('no-dist') || $prefix =~ /^nodist_/);
2020 define_objects_from_sources ($varname,
2021 $xpfx . $one_file . '_OBJECTS',
2022 $prefix =~ /EXTRA_/,
2023 $one_file, $obj, $varname, $where,
2024 DIST_SOURCE => ($prefix !~ /^nodist_/),
2029 $linker ||= &resolve_linker (%linkers_used);
2032 my @keys = sort keys %used_pfx;
2033 if (scalar @keys == 0)
2035 # The default source for libfoo.la is libfoo.c, but for
2036 # backward compatibility we first look at libfoo_la.c
2037 my $old_default_source = "$one_file.c";
2038 (my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
2039 if ($old_default_source ne $default_source
2040 && (rule $old_default_source
2041 || rule '$(srcdir)/' . $old_default_source
2042 || rule '${srcdir}/' . $old_default_source
2043 || -f $old_default_source))
2045 my $loc = $where->clone;
2047 msg ('obsolete', $loc,
2048 "the default source for `$unxformed' has been changed "
2049 . "to `$default_source'.\n(Using `$old_default_source' for "
2050 . "backward compatibility.)");
2051 $default_source = $old_default_source;
2053 # If a rule exists to build this source with a $(srcdir)
2054 # prefix, use that prefix in our variables too. This is for
2055 # the sake of BSD Make.
2056 if (rule '$(srcdir)/' . $default_source
2057 || rule '${srcdir}/' . $default_source)
2059 $default_source = '$(srcdir)/' . $default_source;
2062 &define_variable ($one_file . "_SOURCES", $default_source, $where);
2063 push (@sources, $default_source);
2064 push (@dist_sources, $default_source);
2068 handle_single_transform ($one_file . '_SOURCES',
2069 $one_file . '_SOURCES',
2071 $default_source, %transform);
2072 $linker ||= &resolve_linker (%linkers_used);
2073 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
2077 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
2078 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
2081 # If we want to use `LINK' we must make sure it is defined.
2091 # handle_lib_objects ($XNAME, $VAR)
2092 # ---------------------------------
2093 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
2094 # Also, generate _DEPENDENCIES variable if appropriate.
2096 # transformed name of object being built, or empty string if no object
2097 # name of _LDADD/_LIBADD-type variable to examine
2098 # Returns 1 if LIBOBJS seen, 0 otherwise.
2099 sub handle_lib_objects
2101 my ($xname, $varname) = @_;
2103 my $var = var ($varname);
2104 prog_error "handle_lib_objects: `$varname' undefined"
2106 prog_error "handle_lib_objects: unexpected variable name `$varname'"
2107 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
2108 my $prefix = $1 || 'AM_';
2110 my $seen_libobjs = 0;
2113 transform_variable_recursively
2114 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
2116 # Transformation function, run on each filename.
2118 my ($subvar, $val, $cond, $full_cond) = @_;
2122 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
2123 if ($val !~ /^-[lL]/ &&
2124 # Skip -dlopen and -dlpreopen; these are explicitly allowed
2125 # for Libtool libraries or programs. (Actually we are a bit
2126 # laxest here since this code also applies to non-libtool
2127 # libraries or programs, for which -dlopen and -dlopreopen
2128 # are pure non-sence. Diagnosting this doesn't seems very
2129 # important: the developer will quickly get complaints from
2131 $val !~ /^-dl(?:pre)?open$/ &&
2132 # Only get this error once.
2136 # FIXME: should display a stack of nested variables
2137 # as context when $var != $subvar.
2138 err_var ($var, "linker flags such as `$val' belong in "
2139 . "`${prefix}LDFLAGS");
2143 elsif ($val !~ /^\@.*\@$/)
2145 # Assume we have a file of some sort, and output it into the
2146 # dependency variable. Autoconf substitutions are not output;
2147 # rarely is a new dependency substituted into e.g. foo_LDADD
2148 # -- but bad things (e.g. -lX11) are routinely substituted.
2149 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2150 # and handled specially below.
2153 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
2155 handle_LIBOBJS ($subvar, $cond, $1);
2159 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
2161 handle_ALLOCA ($subvar, $cond, $1);
2170 return $seen_libobjs;
2173 # handle_LIBOBJS_or_ALLOCA ($VAR)
2174 # -------------------------------
2175 # Definitions common to LIBOBJS and ALLOCA.
2176 # VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
2177 sub handle_LIBOBJS_or_ALLOCA ($)
2181 my $dir = $config_libobj_dir ? "$config_libobj_dir/" : '';
2183 # If LIBOBJS files must be built in another directory we have
2184 # to define LIBOBJDIR and ensure the files get cleaned.
2185 # Otherwise LIBOBJDIR can be left undefined, and the cleaning
2186 # is achieved by `rm -f *.($OBJEXT)' in compile.am.
2187 if ($config_libobj_dir
2188 && $relative_dir ne $config_libobj_dir)
2190 if (option 'subdir-objects')
2192 # In the top-level Makefile we do not use $(top_builddir), because
2193 # we are already there, and since the targets are built without
2194 # a $(top_builddir), it helps BSD Make to match them with
2196 $dir = "$topsrcdir/$dir" if $relative_dir ne '.';
2197 define_variable ('LIBOBJDIR', "$dir", INTERNAL);
2198 $clean_files{"\$($var)"} = MOSTLY_CLEAN;
2199 # If LTLIBOBJS is used, we must also clear LIBOBJS (which might
2200 # be created by libtool as a side-effect of creating LTLIBOBJS).
2201 $clean_files{"\$($var)"} = MOSTLY_CLEAN if $var =~ s/^LT//;
2206 error ("`\$($var)' cannot be used outside `$dir' if"
2207 . " `subdir-objects' is not set");
2214 sub handle_LIBOBJS ($$$)
2216 my ($var, $cond, $lt) = @_;
2217 my $myobjext = $lt ? 'lo' : 'o';
2220 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
2221 if ! keys %libsources;
2223 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}LIBOBJS";
2225 foreach my $iter (keys %libsources)
2227 if ($iter =~ /\.[cly]$/)
2229 &saw_extension ($&);
2230 &saw_extension ('.c');
2233 if ($iter =~ /\.h$/)
2235 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2237 elsif ($iter ne 'alloca.c')
2239 my $rewrite = $iter;
2240 $rewrite =~ s/\.c$/.P$myobjext/;
2241 $dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
2242 $rewrite = "^" . quotemeta ($iter) . "\$";
2243 # Only require the file if it is not a built source.
2244 my $bs = var ('BUILT_SOURCES');
2245 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
2247 require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
2253 sub handle_ALLOCA ($$$)
2255 my ($var, $cond, $lt) = @_;
2256 my $myobjext = $lt ? 'lo' : 'o';
2258 my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA";
2260 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
2261 $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
2262 require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
2263 &saw_extension ('.c');
2266 # Canonicalize the input parameter
2270 $string =~ tr/A-Za-z0-9_\@/_/c;
2274 # Canonicalize a name, and check to make sure the non-canonical name
2275 # is never used. Returns canonical name. Arguments are name and a
2276 # list of suffixes to check for.
2277 sub check_canonical_spelling
2279 my ($name, @suffixes) = @_;
2281 my $xname = &canonicalize ($name);
2282 if ($xname ne $name)
2284 foreach my $xt (@suffixes)
2286 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
2296 # Set up the compile suite.
2297 sub handle_compile ()
2300 unless $get_object_extension_was_run;
2303 my $default_includes = '';
2304 if (! option 'nostdinc')
2306 $default_includes = ' -I. -I$(srcdir)';
2308 my $var = var 'CONFIG_HEADER';
2311 foreach my $hdr (split (' ', $var->variable_value))
2313 $default_includes .= ' -I' . dirname ($hdr);
2318 my (@mostly_rms, @dist_rms);
2319 foreach my $item (sort keys %compile_clean_files)
2321 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2323 push (@mostly_rms, "\t-rm -f $item");
2325 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2327 push (@dist_rms, "\t-rm -f $item");
2331 prog_error 'invalid entry in %compile_clean_files';
2335 my ($coms, $vars, $rules) =
2336 &file_contents_internal (1, "$libdir/am/compile.am",
2337 new Automake::Location,
2338 ('DEFAULT_INCLUDES' => $default_includes,
2339 'MOSTLYRMS' => join ("\n", @mostly_rms),
2340 'DISTRMS' => join ("\n", @dist_rms)));
2341 $output_vars .= $vars;
2342 $output_rules .= "$coms$rules";
2344 # Check for automatic de-ANSI-fication.
2345 if (option 'ansi2knr')
2347 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2348 my $ansi2knr_dir = '';
2350 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2351 TRUE, "ANSI2KNR", "U");
2353 # topdir is where ansi2knr should be.
2354 if ($ansi2knr_filename eq 'ansi2knr')
2356 # Only require ansi2knr files if they should appear in
2358 require_file ($ansi2knr_where, FOREIGN,
2359 'ansi2knr.c', 'ansi2knr.1');
2361 # ansi2knr needs to be built before subdirs, so unshift it.
2362 unshift (@all, '$(ANSI2KNR)');
2366 $ansi2knr_dir = dirname ($ansi2knr_filename);
2369 $output_rules .= &file_contents ('ansi2knr',
2370 new Automake::Location,
2371 'ANSI2KNR-DIR' => $ansi2knr_dir);
2378 # Handle libtool rules.
2381 return unless var ('LIBTOOL');
2383 # Libtool requires some files, but only at top level.
2384 # (Starting with Libtool 2.0 we do not have to bother. These
2385 # requirements are done with AC_REQUIRE_AUX_FILE.)
2386 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2387 if $relative_dir eq '.' && ! $libtool_new_api;
2390 foreach my $item (sort keys %libtool_clean_directories)
2392 my $dir = ($item eq '.') ? '' : "$item/";
2393 # .libs is for Unix, _libs for DOS.
2394 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2397 check_user_variables 'LIBTOOLFLAGS';
2399 # Output the libtool compilation rules.
2400 $output_rules .= &file_contents ('libtool',
2401 new Automake::Location,
2402 LTRMS => join ("\n", @libtool_rms));
2405 # handle_programs ()
2406 # ------------------
2407 # Handle C programs.
2410 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2411 'bin', 'sbin', 'libexec', 'pkglib',
2413 return if ! @proglist;
2415 my $seen_global_libobjs =
2416 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2418 foreach my $pair (@proglist)
2420 my ($where, $one_file) = @$pair;
2422 my $seen_libobjs = 0;
2423 my $obj = get_object_extension '.$(OBJEXT)';
2425 # Strip any $(EXEEXT) suffix the user might have added, or this
2426 # will confuse &handle_source_transform and &check_canonical_spelling.
2427 # We'll add $(EXEEXT) back later anyway.
2428 $one_file =~ s/\$\(EXEEXT\)$//;
2430 $known_programs{$one_file} = $where;
2432 # Canonicalize names and check for misspellings.
2433 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2434 '_SOURCES', '_OBJECTS',
2437 $where->push_context ("while processing program `$one_file'");
2438 $where->set (INTERNAL->get);
2440 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
2441 NONLIBTOOL => 1, LIBTOOL => 0);
2443 if (var ($xname . "_LDADD"))
2445 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2449 # User didn't define prog_LDADD override. So do it.
2450 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2452 # This does a bit too much work. But we need it to
2453 # generate _DEPENDENCIES when appropriate.
2456 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2460 reject_var ($xname . '_LIBADD',
2461 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2463 set_seen ($xname . '_DEPENDENCIES');
2464 set_seen ($xname . '_LDFLAGS');
2466 # Determine program to use for link.
2467 my $xlink = &define_per_target_linker_variable ($linker, $xname);
2469 # If the resulting program lies into a subdirectory,
2470 # make sure this directory will exist.
2471 my $dirstamp = require_build_directory_maybe ($one_file);
2473 $output_rules .= &file_contents ('program',
2475 PROGRAM => $one_file,
2478 DIRSTAMP => $dirstamp,
2479 EXEEXT => '$(EXEEXT)');
2481 if ($seen_libobjs || $seen_global_libobjs)
2483 if (var ($xname . '_LDADD'))
2485 &check_libobjs_sources ($xname, $xname . '_LDADD');
2487 elsif (var ('LDADD'))
2489 &check_libobjs_sources ($xname, 'LDADD');
2496 # handle_libraries ()
2497 # -------------------
2499 sub handle_libraries
2501 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2502 'lib', 'pkglib', 'noinst', 'check');
2503 return if ! @liblist;
2505 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2510 my $var = rvar ($prefix[0] . '_LIBRARIES');
2511 $var->requires_variables ('library used', 'RANLIB');
2514 &define_variable ('AR', 'ar', INTERNAL);
2515 &define_variable ('ARFLAGS', 'cru', INTERNAL);
2517 foreach my $pair (@liblist)
2519 my ($where, $onelib) = @$pair;
2521 my $seen_libobjs = 0;
2522 # Check that the library fits the standard naming convention.
2523 my $bn = basename ($onelib);
2524 if ($bn !~ /^lib.*\.a$/)
2526 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
2527 my $suggestion = dirname ($onelib) . "/$bn";
2528 $suggestion =~ s|^\./||g;
2529 msg ('error-gnu/warn', $where,
2530 "`$onelib' is not a standard library name\n"
2531 . "did you mean `$suggestion'?")
2534 $where->push_context ("while processing library `$onelib'");
2535 $where->set (INTERNAL->get);
2537 my $obj = get_object_extension '.$(OBJEXT)';
2539 # Canonicalize names and check for misspellings.
2540 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2541 '_OBJECTS', '_DEPENDENCIES',
2544 if (! var ($xlib . '_AR'))
2546 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2549 # Generate support for conditional object inclusion in
2551 if (var ($xlib . '_LIBADD'))
2553 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2560 &define_variable ($xlib . "_LIBADD", '', $where);
2563 reject_var ($xlib . '_LDADD',
2564 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2566 # Make sure we at look at this.
2567 set_seen ($xlib . '_DEPENDENCIES');
2569 &handle_source_transform ($xlib, $onelib, $obj, $where,
2570 NONLIBTOOL => 1, LIBTOOL => 0);
2572 # If the resulting library lies into a subdirectory,
2573 # make sure this directory will exist.
2574 my $dirstamp = require_build_directory_maybe ($onelib);
2576 $output_rules .= &file_contents ('library',
2580 DIRSTAMP => $dirstamp);
2584 if (var ($xlib . '_LIBADD'))
2586 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2593 # handle_ltlibraries ()
2594 # ---------------------
2595 # Handle shared libraries.
2596 sub handle_ltlibraries
2598 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2599 'noinst', 'lib', 'pkglib', 'check');
2600 return if ! @liblist;
2602 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2607 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2608 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2613 my %liblocations = (); # Location (in Makefile.am) of each library.
2615 foreach my $key (@prefix)
2617 # Get the installation directory of each library.
2618 (my $dir = $key) =~ s/^nobase_//;
2619 my $var = rvar ($key . '_LTLIBRARIES');
2621 # We reject libraries which are installed in several places
2622 # in the same condition, because we can only specify one
2624 $var->traverse_recursively
2627 my ($var, $val, $cond, $full_cond) = @_;
2628 my $hcond = $full_cond->human;
2629 my $where = $var->rdef ($cond)->location;
2630 # A library cannot be installed in different directory
2631 # in overlapping conditions.
2632 if (exists $instconds{$val})
2635 $instconds{$val}->ambiguous_p ($val, $full_cond);
2639 error ($where, $msg, partial => 1);
2641 my $dirtxt = "installed in `$dir'";
2642 $dirtxt = "built for `$dir'"
2643 if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
2645 $full_cond->true ? "" : " in condition $hcond";
2647 error ($where, "`$val' should be $dirtxt$dircond ...",
2650 my $hacond = $acond->human;
2651 my $adir = $instdirs{$val}{$acond};
2652 my $adirtxt = "installed in `$adir'";
2653 $adirtxt = "built for `$adir'"
2654 if ($adir eq 'EXTRA' || $adir eq 'noinst'
2655 || $adir eq 'check');
2656 my $adircond = $acond->true ? "" : " in condition $hacond";
2658 my $onlyone = ($dir ne $adir) ?
2659 ("\nLibtool libraries can be built for only one "
2660 . "destination.") : "";
2662 error ($liblocations{$val}{$acond},
2663 "... and should also be $adirtxt$adircond.$onlyone");
2669 $instconds{$val} = new Automake::DisjConditions;
2671 $instdirs{$val}{$full_cond} = $dir;
2672 $liblocations{$val}{$full_cond} = $where;
2673 $instconds{$val} = $instconds{$val}->merge ($full_cond);
2679 skip_ac_subst => 1);
2682 foreach my $pair (@liblist)
2684 my ($where, $onelib) = @$pair;
2686 my $seen_libobjs = 0;
2687 my $obj = get_object_extension '.lo';
2689 # Canonicalize names and check for misspellings.
2690 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2691 '_SOURCES', '_OBJECTS',
2694 # Check that the library fits the standard naming convention.
2695 my $libname_rx = '^lib.*\.la';
2696 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2697 my $ldvar2 = var ('LDFLAGS');
2698 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2699 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2701 # Relax name checking for libtool modules.
2702 $libname_rx = '\.la';
2705 my $bn = basename ($onelib);
2706 if ($bn !~ /$libname_rx$/)
2708 my $type = 'library';
2709 if ($libname_rx eq '\.la')
2711 $bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
2716 $bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
2718 my $suggestion = dirname ($onelib) . "/$bn";
2719 $suggestion =~ s|^\./||g;
2720 msg ('error-gnu/warn', $where,
2721 "`$onelib' is not a standard libtool $type name\n"
2722 . "did you mean `$suggestion'?")
2725 $where->push_context ("while processing Libtool library `$onelib'");
2726 $where->set (INTERNAL->get);
2728 # Make sure we look at these.
2729 set_seen ($xlib . '_LDFLAGS');
2730 set_seen ($xlib . '_DEPENDENCIES');
2732 # Generate support for conditional object inclusion in
2734 if (var ($xlib . '_LIBADD'))
2736 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2743 &define_variable ($xlib . "_LIBADD", '', $where);
2746 reject_var ("${xlib}_LDADD",
2747 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2750 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
2751 NONLIBTOOL => 0, LIBTOOL => 1);
2753 # Determine program to use for link.
2754 my $xlink = &define_per_target_linker_variable ($linker, $xlib);
2756 my $rpathvar = "am_${xlib}_rpath";
2757 my $rpath = "\$($rpathvar)";
2758 foreach my $rcond ($instconds{$onelib}->conds)
2761 if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
2762 || $instdirs{$onelib}{$rcond} eq 'noinst'
2763 || $instdirs{$onelib}{$rcond} eq 'check')
2765 # It's an EXTRA_ library, so we can't specify -rpath,
2766 # because we don't know where the library will end up.
2767 # The user probably knows, but generally speaking automake
2768 # doesn't -- and in fact configure could decide
2769 # dynamically between two different locations.
2774 $val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
2778 # If $rcond is true there is only one condition and
2779 # there is no point defining an helper variable.
2784 define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
2788 # If the resulting library lies into a subdirectory,
2789 # make sure this directory will exist.
2790 my $dirstamp = require_build_directory_maybe ($onelib);
2792 # Remember to cleanup .libs/ in this directory.
2793 my $dirname = dirname $onelib;
2794 $libtool_clean_directories{$dirname} = 1;
2796 $output_rules .= &file_contents ('ltlibrary',
2798 LTLIBRARY => $onelib,
2799 XLTLIBRARY => $xlib,
2802 DIRSTAMP => $dirstamp);
2805 if (var ($xlib . '_LIBADD'))
2807 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2813 # See if any _SOURCES variable were misspelled.
2816 # It is ok if the user sets this particular variable.
2817 set_seen 'AM_LDFLAGS';
2819 foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
2821 foreach my $var (variables $primary)
2823 my $varname = $var->name;
2824 # A configure variable is always legitimate.
2825 next if exists $configure_vars{$varname};
2827 for my $cond ($var->conditions->conds)
2829 $varname =~ /^(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
2830 msg_var ('syntax', $var, "variable `$varname' is defined but no"
2831 . " program or\nlibrary has `$1' as canonic name"
2832 . " (possible typo)")
2833 unless $var->rdef ($cond)->seen;
2843 # NOTE we no longer automatically clean SCRIPTS, because it is
2844 # useful to sometimes distribute scripts verbatim. This happens
2845 # e.g. in Automake itself.
2846 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2847 'bin', 'sbin', 'libexec', 'pkgdata',
2854 ## ------------------------ ##
2855 ## Handling Texinfo files. ##
2856 ## ------------------------ ##
2858 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2859 # &scan_texinfo_file ($FILENAME)
2860 # ------------------------------
2861 # $OUTFILE - name of the info file produced by $FILENAME.
2862 # $VFILE - name of the version.texi file used (undef if none).
2863 # @CLEAN_FILES - list of byproducts (indexes etc.)
2864 sub scan_texinfo_file ($)
2866 my ($filename) = @_;
2868 # Some of the following extensions are always created, no matter
2869 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2870 # are only created when they are used. We used to scan $FILENAME
2871 # for their use, but that is not enough: they could be used in
2872 # included files. We can't scan included files because we don't
2873 # know the include path. Therefore we always erase these files, no
2874 # matter whether they are used or not.
2876 # (tmp is only created if an @macro is used and a certain e-TeX
2877 # feature is not available.)
2878 my %clean_suffixes =
2879 map { $_ => 1 } (qw(aux log toc tmp
2885 pg pgs)); # grep 'new.*index' texinfo.tex
2887 my $texi = new Automake::XFile "< $filename";
2888 verb "reading $filename";
2890 my ($outfile, $vfile);
2891 while ($_ = $texi->getline)
2893 if (/^\@setfilename +(\S+)/)
2895 # Honor only the first @setfilename. (It's possible to have
2896 # more occurrences later if the manual shows examples of how
2897 # to use @setfilename...)
2901 if ($outfile =~ /\.([^.]+)$/ && $1 ne 'info')
2903 error ("$filename:$.",
2904 "output `$outfile' has unrecognized extension");
2908 # A "version.texi" file is actually any file whose name matches
2910 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2915 # Try to find new or unused indexes.
2917 # Creating a new category of index.
2918 elsif (/^\@def(code)?index (\w+)/)
2920 $clean_suffixes{$2} = 1;
2921 $clean_suffixes{"$2s"} = 1;
2924 # Merging an index into an another.
2925 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2927 delete $clean_suffixes{"$2s"};
2928 $clean_suffixes{"$3s"} = 1;
2935 err_am "`$filename' missing \@setfilename";
2939 my $infobase = basename ($filename);
2940 $infobase =~ s/\.te?xi(nfo)?$//;
2941 return ($outfile, $vfile,
2942 map { "$infobase.$_" } (sort keys %clean_suffixes));
2946 # ($DIRSTAMP, @CLEAN_FILES)
2947 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2948 # ------------------------------------------------------------------
2949 # SOURCE - the source Texinfo file
2950 # DEST - the destination Info file
2951 # INSRC - wether DEST should be built in the source tree
2952 # DEPENDENCIES - known dependencies
2953 sub output_texinfo_build_rules ($$$@)
2955 my ($source, $dest, $insrc, @deps) = @_;
2957 # Split `a.texi' into `a' and `.texi'.
2958 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2959 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2964 # We can output two kinds of rules: the "generic" rules use Make
2965 # suffix rules and are appropriate when $source and $dest do not lie
2966 # in a sub-directory; the "specific" rules are needed in the other
2969 # The former are output only once (this is not really apparent here,
2970 # but just remember that some logic deeper in Automake will not
2971 # output the same rule twice); while the later need to be output for
2972 # each Texinfo source.
2975 my $sdir = dirname $source;
2976 if ($sdir eq '.' && dirname ($dest) eq '.')
2979 $makeinfoflags = '-I $(srcdir)';
2984 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2987 # A directory can contain two kinds of info files: some built in the
2988 # source tree, and some built in the build tree. The rules are
2989 # different in each case. However we cannot output two different
2990 # set of generic rules. Because in-source builds are more usual, we
2991 # use generic rules in this case and fall back to "specific" rules
2992 # for build-dir builds. (It should not be a problem to invert this
2994 $generic = 0 unless $insrc;
2996 # We cannot use a suffix rule to build info files with an empty
2997 # extension. Otherwise we would output a single suffix inference
2998 # rule, with separate dependencies, as in
3002 # foo.info: foo.texi
3004 # which confuse Solaris make. (See the Autoconf manual for
3005 # details.) Therefore we use a specific rule in this case. This
3006 # applies to info files only (dvi and pdf files always have an
3008 my $generic_info = ($generic && $dsfx) ? 1 : 0;
3010 # If the resulting file lie into a subdirectory,
3011 # make sure this directory will exist.
3012 my $dirstamp = require_build_directory_maybe ($dest);
3014 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
3016 $output_rules .= file_contents ('texibuild',
3017 new Automake::Location,
3019 DEST_PREFIX => $dpfx,
3020 DEST_INFO_PREFIX => $dipfx,
3021 DEST_SUFFIX => $dsfx,
3022 DIRSTAMP => $dirstamp,
3023 GENERIC => $generic,
3024 GENERIC_INFO => $generic_info,
3026 MAKEINFOFLAGS => $makeinfoflags,
3029 SOURCE_INFO => ($generic_info
3031 SOURCE_REAL => $source,
3032 SOURCE_SUFFIX => $ssfx,
3034 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
3039 # handle_texinfo_helper ($info_texinfos)
3040 # --------------------------------------
3041 # Handle all Texinfo source; helper for handle_texinfo.
3042 sub handle_texinfo_helper ($)
3044 my ($info_texinfos) = @_;
3045 my (@infobase, @info_deps_list, @texi_deps);
3050 # Build a regex matching user-cleaned files.
3051 my $d = var 'DISTCLEANFILES';
3052 my $c = var 'CLEANFILES';
3054 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
3055 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
3056 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
3057 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
3060 ($info_texinfos->value_as_list_recursive (inner_expand => 1))
3062 my $infobase = $texi;
3063 $infobase =~ s/\.(txi|texinfo|texi)$//;
3065 if ($infobase eq $texi)
3067 # FIXME: report line number.
3068 err_am "texinfo file `$texi' has unrecognized extension";
3072 push @infobase, $infobase;
3074 # If 'version.texi' is referenced by input file, then include
3075 # automatic versioning capability.
3076 my ($out_file, $vtexi, @clean_files) =
3077 scan_texinfo_file ("$relative_dir/$texi")
3079 push (@texi_cleans, @clean_files);
3081 # If the Texinfo source is in a subdirectory, create the
3082 # resulting info in this subdirectory. If it is in the current
3083 # directory, try hard to not prefix "./" because it breaks the
3085 my $outdir = dirname ($texi) . '/';
3086 $outdir = "" if $outdir eq './';
3087 $out_file = $outdir . $out_file;
3089 # Until Automake 1.6.3, .info files were built in the
3090 # source tree. This was an obstacle to the support of
3091 # non-distributed .info files, and non-distributed .texi
3094 # * Non-distributed .texi files is important in some packages
3095 # where .texi files are built at make time, probably using
3096 # other binaries built in the package itself, maybe using
3097 # tools or information found on the build host. Because
3098 # these files are not distributed they are always rebuilt
3099 # at make time; they should therefore not lie in the source
3100 # directory. One plan was to support this using
3101 # nodist_info_TEXINFOS or something similar. (Doing this
3102 # requires some sanity checks. For instance Automake should
3104 # dist_info_TEXINFO = foo.texi
3105 # nodist_foo_TEXINFO = included.texi
3106 # because a distributed file should never depend on a
3107 # non-distributed file.)
3109 # * If .texi files are not distributed, then .info files should
3110 # not be distributed either. There are also cases where one
3111 # want to distribute .texi files, but do not want to
3112 # distribute the .info files. For instance the Texinfo package
3113 # distributes the tool used to build these files; it would
3114 # be a waste of space to distribute them. It's not clear
3115 # which syntax we should use to indicate that .info files should
3116 # not be distributed. Akim Demaille suggested that eventually
3117 # we switch to a new syntax:
3118 # | Maybe we should take some inspiration from what's already
3119 # | done in the rest of Automake. Maybe there is too much
3120 # | syntactic sugar here, and you want
3121 # | nodist_INFO = bar.info
3122 # | dist_bar_info_SOURCES = bar.texi
3123 # | bar_texi_DEPENDENCIES = foo.texi
3124 # | with a bit of magic to have bar.info represent the whole
3125 # | bar*info set. That's a lot more verbose that the current
3126 # | situation, but it is # not new, hence the user has less
3129 # | But there is still too much room for meaningless specs:
3130 # | nodist_INFO = bar.info
3131 # | dist_bar_info_SOURCES = bar.texi
3132 # | dist_PS = bar.ps something-written-by-hand.ps
3133 # | nodist_bar_ps_SOURCES = bar.texi
3134 # | bar_texi_DEPENDENCIES = foo.texi
3135 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
3137 # Back to the point, it should be clear that in order to support
3138 # non-distributed .info files, we need to build them in the
3139 # build tree, not in the source tree (non-distributed .texi
3140 # files are less of a problem, because we do not output build
3141 # rules for them). In Automake 1.7 .info build rules have been
3142 # largely cleaned up so that .info files get always build in the
3143 # build tree, even when distributed. The idea was that
3144 # (1) if during a VPATH build the .info file was found to be
3145 # absent or out-of-date (in the source tree or in the
3146 # build tree), Make would rebuild it in the build tree.
3147 # If an up-to-date source-tree of the .info file existed,
3148 # make would not rebuild it in the build tree.
3149 # (2) having two copies of .info files, one in the source tree
3150 # and one (newer) in the build tree is not a problem
3151 # because `make dist' always pick files in the build tree
3153 # However it turned out the be a bad idea for several reasons:
3154 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
3155 # like GNU Make on point (1) above. These implementations
3156 # of Make would always rebuild .info files in the build
3157 # tree, even if such files were up to date in the source
3158 # tree. Consequently, it was impossible to perform a VPATH
3159 # build of a package containing Texinfo files using these
3160 # Make implementations.
3161 # (Refer to the Autoconf Manual, section "Limitation of
3162 # Make", paragraph "VPATH", item "target lookup", for
3163 # an account of the differences between these
3165 # * The GNU Coding Standards require these files to be built
3166 # in the source-tree (when they are distributed, that is).
3167 # * Keeping a fresher copy of distributed files in the
3168 # build tree can be annoying during development because
3169 # - if the files is kept under CVS, you really want it
3170 # to be updated in the source tree
3171 # - it is confusing that `make distclean' does not erase
3172 # all files in the build tree.
3174 # Consequently, starting with Automake 1.8, .info files are
3175 # built in the source tree again. Because we still plan to
3176 # support non-distributed .info files at some point, we
3177 # have a single variable ($INSRC) that controls whether
3178 # the current .info file must be built in the source tree
3179 # or in the build tree. Actually this variable is switched
3180 # off for .info files that appear to be cleaned; this is
3181 # for backward compatibility with package such as Texinfo,
3182 # which do things like
3183 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
3184 # DISTCLEANFILES = texinfo texinfo-* info*.info*
3185 # # Do not create info files for distribution.
3187 # in order not to distribute .info files.
3188 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
3190 my $soutdir = '$(srcdir)/' . $outdir;
3191 $outdir = $soutdir if $insrc;
3193 # If user specified file_TEXINFOS, then use that as explicit
3196 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
3198 my $canonical = canonicalize ($infobase);
3199 if (var ($canonical . "_TEXINFOS"))
3201 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3202 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3205 my ($dirstamp, @cfiles) =
3206 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
3207 push (@texi_cleans, @cfiles);
3209 push (@info_deps_list, $out_file);
3211 # If a vers*.texi file is needed, emit the rule.
3214 err_am ("`$vtexi', included in `$texi', "
3215 . "also included in `$versions{$vtexi}'")
3216 if defined $versions{$vtexi};
3217 $versions{$vtexi} = $texi;
3219 # We number the stamp-vti files. This is doable since the
3220 # actual names don't matter much. We only number starting
3221 # with the second one, so that the common case looks nice.
3222 my $vti = ($done ? $done : 'vti');
3225 # This is ugly, but it is our historical practice.
3226 if ($config_aux_dir_set_in_configure_ac)
3228 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3233 require_file_with_macro (TRUE, 'info_TEXINFOS',
3234 FOREIGN, 'mdate-sh');
3238 if ($config_aux_dir_set_in_configure_ac)
3240 $conf_dir = "$am_config_aux_dir/";
3244 $conf_dir = '$(srcdir)/';
3246 $output_rules .= file_contents ('texi-vers',
3247 new Automake::Location,
3250 STAMPVTI => "${soutdir}stamp-$vti",
3251 VTEXI => "$soutdir$vtexi",
3253 DIRSTAMP => $dirstamp);
3257 # Handle location of texinfo.tex.
3258 my $need_texi_file = 0;
3260 if (var ('TEXINFO_TEX'))
3262 # The user defined TEXINFO_TEX so assume he knows what he is
3264 $texinfodir = ('$(srcdir)/'
3265 . dirname (variable_value ('TEXINFO_TEX')));
3267 elsif (option 'cygnus')
3269 $texinfodir = '$(top_srcdir)/../texinfo';
3270 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3272 elsif ($config_aux_dir_set_in_configure_ac)
3274 $texinfodir = $am_config_aux_dir;
3275 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
3276 $need_texi_file = 2; # so that we require_conf_file later
3280 $texinfodir = '$(srcdir)';
3281 $need_texi_file = 1;
3283 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
3285 push (@dist_targets, 'dist-info');
3287 if (! option 'no-installinfo')
3289 # Make sure documentation is made and installed first. Use
3290 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3291 # get run twice during "make all".
3292 unshift (@all, '$(INFO_DEPS)');
3295 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
3296 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
3297 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
3298 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
3300 # This next isn't strictly needed now -- the places that look here
3301 # could easily be changed to look in info_TEXINFOS. But this is
3302 # probably better, in case noinst_TEXINFOS is ever supported.
3303 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
3305 # Do some error checking. Note that this file is not required
3306 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3308 if ($need_texi_file && ! option 'no-texinfo.tex')
3310 if ($need_texi_file > 1)
3312 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3317 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
3322 return makefile_wrap ("", "\t ", @texi_cleans);
3328 # Handle all Texinfo source.
3329 sub handle_texinfo ()
3331 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
3332 # FIXME: I think this is an obsolete future feature name.
3333 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
3335 my $info_texinfos = var ('info_TEXINFOS');
3339 $texiclean = handle_texinfo_helper ($info_texinfos);
3341 $output_rules .= file_contents ('texinfos',
3342 new Automake::Location,
3343 TEXICLEAN => $texiclean,
3344 'LOCAL-TEXIS' => !!$info_texinfos);
3348 # Handle any man pages.
3349 sub handle_man_pages
3351 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3353 # Find all the sections in use. We do this by first looking for
3354 # "standard" sections, and then looking for any additional
3355 # sections used in man_MANS.
3356 my (%sections, %vlist);
3357 # We handle nodist_ for uniformity. man pages aren't distributed
3358 # by default so it isn't actually very important.
3359 foreach my $pfx ('', 'dist_', 'nodist_')
3361 # Add more sections as needed.
3362 foreach my $section ('0'..'9', 'n', 'l')
3364 my $varname = $pfx . 'man' . $section . '_MANS';
3367 $sections{$section} = 1;
3368 $varname = '$(' . $varname . ')';
3369 $vlist{$varname} = 1;
3371 &push_dist_common ($varname)
3376 my $varname = $pfx . 'man_MANS';
3377 my $var = var ($varname);
3380 foreach ($var->value_as_list_recursive)
3382 # A page like `foo.1c' goes into man1dir.
3383 if (/\.([0-9a-z])([a-z]*)$/)
3389 $varname = '$(' . $varname . ')';
3390 $vlist{$varname} = 1;
3391 &push_dist_common ($varname)
3396 return unless %sections;
3398 # Now for each section, generate an install and uninstall rule.
3399 # Sort sections so output is deterministic.
3400 foreach my $section (sort keys %sections)
3402 $output_rules .= &file_contents ('mans',
3403 new Automake::Location,
3404 SECTION => $section);
3407 my @mans = sort keys %vlist;
3408 $output_vars .= file_contents ('mans-vars',
3409 new Automake::Location,
3412 push (@all, '$(MANS)')
3413 unless option 'no-installman';
3416 # Handle DATA variables.
3419 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3420 'data', 'dataroot', 'dvi', 'html', 'pdf', 'ps',
3421 'sysconf', 'sharedstate', 'localstate',
3422 'pkgdata', 'lisp', 'noinst', 'check');
3430 if (var ('SUBDIRS'))
3432 $output_rules .= ("tags-recursive:\n"
3433 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3434 # Never fail here if a subdir fails; it
3436 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3437 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3439 push (@tag_deps, 'tags-recursive');
3440 &depend ('.PHONY', 'tags-recursive');
3442 $output_rules .= ("ctags-recursive:\n"
3443 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3444 # Never fail here if a subdir fails; it
3446 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3447 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3449 push (@ctag_deps, 'ctags-recursive');
3450 &depend ('.PHONY', 'ctags-recursive');
3453 if (&saw_sources_p (1)
3454 || var ('ETAGS_ARGS')
3458 foreach my $spec (@config_headers)
3460 my ($out, @ins) = split_config_file_spec ($spec);
3461 foreach my $in (@ins)
3463 # If the config header source is in this directory,
3465 push @config, basename ($in)
3466 if $relative_dir eq dirname ($in);
3469 $output_rules .= &file_contents ('tags',
3470 new Automake::Location,
3471 CONFIG => "@config",
3472 TAGSDIRS => "@tag_deps",
3473 CTAGSDIRS => "@ctag_deps");
3475 set_seen 'TAGS_DEPENDENCIES';
3477 elsif (reject_var ('TAGS_DEPENDENCIES',
3478 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3479 . "without\nsources or `ETAGS_ARGS'"))
3484 # Every Makefile must define some sort of TAGS rule.
3485 # Otherwise, it would be possible for a top-level "make TAGS"
3486 # to fail because some subdirectory failed.
3487 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3489 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3493 # Handle multilib support.
3496 if ($seen_multilib && $relative_dir eq '.')
3498 $output_rules .= &file_contents ('multilib', new Automake::Location);
3499 push (@all, 'all-multi');
3504 # user_phony_rule ($NAME)
3505 # -----------------------
3506 # Return false if rule $NAME does not exist. Otherwise,
3507 # declare it as phony, complete its definition (in case it is
3508 # conditional), and return its Automake::Rule instance.
3509 sub user_phony_rule ($)
3512 my $rule = rule $name;
3515 depend ('.PHONY', $name);
3516 # Define $NAME in all condition where it is not already defined,
3517 # so that it is always OK to depend on $NAME.
3518 for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
3520 Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
3522 $output_rules .= $c->subst_string . "$name:\n";
3530 # &for_dist_common ($A, $B)
3531 # -------------------------
3532 # Subroutine for &handle_dist: sort files to dist.
3534 # We put README first because it then becomes easier to make a
3535 # Usenet-compliant shar file (in these, README must be first).
3537 # FIXME: do more ordering of files here.
3551 # Handle 'dist' target.
3554 # Substutions for distdit.am
3557 # Define DIST_SUBDIRS. This must always be done, regardless of the
3558 # no-dist setting: target like `distclean' or `maintainer-clean' use it.
3559 my $subdirs = var ('SUBDIRS');
3562 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3563 # to all possible directories, and use it. If DIST_SUBDIRS is
3564 # defined, just use it.
3566 # Note that we check DIST_SUBDIRS first on purpose, so that
3567 # we don't call has_conditional_contents for now reason.
3568 # (In the past one project used so many conditional subdirectories
3569 # that calling has_conditional_contents on SUBDIRS caused
3570 # automake to grow to 150Mb -- this should not happen with
3571 # the current implementation of has_conditional_contents,
3572 # but it's more efficient to avoid the call anyway.)
3573 if (var ('DIST_SUBDIRS'))
3576 elsif ($subdirs->has_conditional_contents)
3578 define_pretty_variable
3579 ('DIST_SUBDIRS', TRUE, INTERNAL,
3580 uniq ($subdirs->value_as_list_recursive));
3584 # We always define this because that is what `distclean'
3586 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3591 # The remaining definitions are only required when a dist target is used.
3592 return if option 'no-dist';
3594 # At least one of the archive formats must be enabled.
3595 if ($relative_dir eq '.')
3597 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3598 $archive_defined ||=
3599 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3600 error (option 'no-dist-gzip',
3601 "no-dist-gzip specified but no dist-* specified, "
3602 . "at least one archive format must be enabled")
3603 unless $archive_defined;
3606 # Look for common files that should be included in distribution.
3607 # If the aux dir is set, and it does not have a Makefile.am, then
3608 # we check for these files there as well.
3610 if ($relative_dir eq '.'
3611 && $config_aux_dir_set_in_configure_ac)
3613 if (! &is_make_dir ($config_aux_dir))
3618 foreach my $cfile (@common_files)
3620 if (dir_has_case_matching_file ($relative_dir, $cfile)
3621 # The file might be absent, but if it can be built it's ok.
3624 &push_dist_common ($cfile);
3627 # Don't use `elsif' here because a file might meaningfully
3628 # appear in both directories.
3629 if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
3631 &push_dist_common ("$config_aux_dir/$cfile")
3635 # We might copy elements from $configure_dist_common to
3636 # %dist_common if we think we need to. If the file appears in our
3637 # directory, we would have discovered it already, so we don't
3638 # check that. But if the file is in a subdir without a Makefile,
3639 # we want to distribute it here if we are doing `.'. Ugly!
3640 if ($relative_dir eq '.')
3642 foreach my $file (split (' ' , $configure_dist_common))
3644 push_dist_common ($file)
3645 unless is_make_dir (dirname ($file));
3649 # Files to distributed. Don't use ->value_as_list_recursive
3650 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3651 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3652 @dist_common = uniq (sort for_dist_common (@dist_common));
3653 variable_delete 'DIST_COMMON';
3654 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3656 # Now that we've processed DIST_COMMON, disallow further attempts
3658 $handle_dist_run = 1;
3660 # Scan EXTRA_DIST to see if we need to distribute anything from a
3661 # subdir. If so, add it to the list. I didn't want to do this
3662 # originally, but there were so many requests that I finally
3664 my $extra_dist = var ('EXTRA_DIST');
3666 $transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
3667 $transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
3669 # If the target `dist-hook' exists, make sure it is run. This
3670 # allows users to do random weird things to the distribution
3671 # before it is packaged up.
3672 push (@dist_targets, 'dist-hook')
3673 if user_phony_rule 'dist-hook';
3674 $transform{'DIST-TARGETS'} = join (' ', @dist_targets);
3676 my $flm = option ('filename-length-max');
3677 my $filename_filter = $flm ? '.' x $flm->[1] : '';
3679 $output_rules .= &file_contents ('distdir',
3680 new Automake::Location,
3682 FILENAME_FILTER => $filename_filter);
3686 # check_directory ($NAME, $WHERE)
3687 # -------------------------------
3688 # Ensure $NAME is a directory, and that it uses sane name.
3689 # Use $WHERE as a location in the diagnostic, if any.
3690 sub check_directory ($$)
3692 my ($dir, $where) = @_;
3694 error $where, "required directory $relative_dir/$dir does not exist"
3695 unless -d "$relative_dir/$dir";
3697 # If an `obj/' directory exists, BSD make will enter it before
3698 # reading `Makefile'. Hence the `Makefile' in the current directory
3704 # % cat obj/Makefile
3710 # % pmake # BSD make
3713 msg ('portability', $where,
3714 "naming a subdirectory `obj' causes troubles with BSD make")
3717 # `aux' is probably the most important of the following forbidden name,
3718 # since it's tempting to use it as an AC_CONFIG_AUX_DIR.
3719 msg ('portability', $where,
3720 "name `$dir' is reserved on W32 and DOS platforms")
3721 if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
3724 # check_directories_in_var ($VARIABLE)
3725 # ------------------------------------
3726 # Recursively check all items in variables $VARIABLE as directories
3727 sub check_directories_in_var ($)
3730 $var->traverse_recursively
3733 my ($var, $val, $cond, $full_cond) = @_;
3734 check_directory ($val, $var->rdef ($cond)->location);
3738 skip_ac_subst => 1);
3741 # &handle_subdirs ()
3742 # ------------------
3743 # Handle subdirectories.
3744 sub handle_subdirs ()
3746 my $subdirs = var ('SUBDIRS');
3750 check_directories_in_var $subdirs;
3752 my $dsubdirs = var ('DIST_SUBDIRS');
3753 check_directories_in_var $dsubdirs
3756 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3757 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3761 # ($REGEN, @DEPENDENCIES)
3764 # If aclocal.m4 creation is automated, return the list of its dependencies.
3765 sub scan_aclocal_m4 ()
3767 my $regen_aclocal = 0;
3769 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3770 set_seen 'CONFIGURE_DEPENDENCIES';
3772 if (-f 'aclocal.m4')
3774 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3776 my $aclocal = new Automake::XFile "< aclocal.m4";
3777 my $line = $aclocal->getline;
3778 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3783 if (set_seen ('ACLOCAL_M4_SOURCES'))
3785 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3786 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3787 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3788 . "It should be safe to simply remove it.");
3791 # Note that it might be possible that aclocal.m4 doesn't exist but
3792 # should be auto-generated. This case probably isn't very
3795 return ($regen_aclocal, @ac_deps);
3799 # Helper function for substitute_ac_subst_variables.
3800 sub substitute_ac_subst_variables_worker($)
3803 return "\@$token\@" if var $token;
3804 return "\${$token\}";
3807 # substitute_ac_subst_variables ($TEXT)
3808 # -------------------------------------
3809 # Replace any occurence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
3811 sub substitute_ac_subst_variables ($)
3814 $text =~ s/\${([^ \t=:+{}]+)}/&substitute_ac_subst_variables_worker ($1)/ge;
3819 # &prepend_srcdir (@INPUTS)
3820 # -------------------------
3821 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3822 # if an input file has a directory part the same as the current
3823 # directory, then the directory part is simply replaced by $(srcdir).
3824 # But if the directory part is different, then $(top_srcdir) is
3826 sub prepend_srcdir (@)
3831 foreach my $single (@inputs)
3833 if (dirname ($single) eq $relative_dir)
3835 push (@newinputs, '$(srcdir)/' . basename ($single));
3839 push (@newinputs, '$(top_srcdir)/' . $single);
3846 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3847 # ---------------------------------------------------
3848 # Compute a list of dependencies appropriate for the rebuild
3850 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3851 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3852 sub rewrite_inputs_into_dependencies ($@)
3854 my ($file, @inputs) = @_;
3859 # We cannot create dependencies on shell variables.
3860 next if (substitute_ac_subst_variables $i) =~ /\$/;
3862 if (exists $ac_config_files_location{$i})
3864 my $di = dirname $i;
3865 if ($di eq $relative_dir)
3869 # In the top-level Makefile we do not use $(top_builddir), because
3870 # we are already there, and since the targets are built without
3871 # a $(top_builddir), it helps BSD Make to match them with
3873 elsif ($relative_dir ne '.')
3875 $i = '$(top_builddir)/' . $i;
3880 msg ('error', $ac_config_files_location{$file},
3881 "required file `$i' not found")
3882 unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
3883 ($i) = prepend_srcdir ($i);
3884 push_dist_common ($i);
3893 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3894 # ------------------------------------------------------------------
3895 # Handle remaking and configure stuff.
3896 # We need the name of the input file, to do proper remaking rules.
3897 sub handle_configure ($$$@)
3899 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3901 prog_error 'empty @inputs'
3904 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3906 my $rel_makefile = basename $makefile;
3908 my $colon_infile = ':' . join (':', @inputs);
3909 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3910 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3911 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3912 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3913 @configure_deps, @aclocal_m4_deps,
3914 '$(top_srcdir)/' . $configure_ac);
3915 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3916 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3917 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3920 $output_rules .= file_contents
3922 new Automake::Location,
3923 MAKEFILE => $rel_makefile,
3924 'MAKEFILE-DEPS' => "@rewritten",
3925 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3926 'MAKEFILE-IN' => $rel_makefile_in,
3927 'MAKEFILE-IN-DEPS' => "@include_stack",
3928 'MAKEFILE-AM' => $rel_makefile_am,
3929 STRICTNESS => global_option 'cygnus'
3930 ? 'cygnus' : $strictness_name,
3931 'USE-DEPS' => global_option 'no-dependencies'
3932 ? ' --ignore-deps' : '',
3933 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3934 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3936 if ($relative_dir eq '.')
3938 &push_dist_common ('acconfig.h')
3942 # If we have a configure header, require it.
3944 my @distclean_config;
3945 foreach my $spec (@config_headers)
3948 # $CONFIG_H_PATH: config.h from top level.
3949 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3950 my $config_h_dir = dirname ($config_h_path);
3952 # If the header is in the current directory we want to build
3953 # the header here. Otherwise, if we're at the topmost
3954 # directory and the header's directory doesn't have a
3955 # Makefile, then we also want to build the header.
3956 if ($relative_dir eq $config_h_dir
3957 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3959 my ($cn_sans_dir, $stamp_dir);
3960 if ($relative_dir eq $config_h_dir)
3962 $cn_sans_dir = basename ($config_h_path);
3967 $cn_sans_dir = $config_h_path;
3968 if ($config_h_dir eq '.')
3974 $stamp_dir = $config_h_dir . '/';
3978 # This will also distribute all inputs.
3979 @ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
3981 # Cannot define rebuild rules for filenames with shell variables.
3982 next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
3984 # Header defined in this directory.
3986 if (-f $config_h_path . '.top')
3988 push (@files, "$cn_sans_dir.top");
3990 if (-f $config_h_path . '.bot')
3992 push (@files, "$cn_sans_dir.bot");
3995 push_dist_common (@files);
3997 # For now, acconfig.h can only appear in the top srcdir.
3998 if (-f 'acconfig.h')
4000 push (@files, '$(top_srcdir)/acconfig.h');
4003 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
4005 file_contents ('remake-hdr',
4006 new Automake::Location,
4008 CONFIG_H => $cn_sans_dir,
4009 CONFIG_HIN => $ins[0],
4010 CONFIG_H_DEPS => "@ins",
4011 CONFIG_H_PATH => $config_h_path,
4014 push @distclean_config, $cn_sans_dir, $stamp;
4018 $output_rules .= file_contents ('clean-hdr',
4019 new Automake::Location,
4020 FILES => "@distclean_config")
4021 if @distclean_config;
4023 # Distribute and define mkinstalldirs only if it is already present
4024 # in the package, for backward compatibility (some people may still
4025 # use $(mkinstalldirs)).
4026 my $mkidpath = "$config_aux_dir/mkinstalldirs";
4029 # Use require_file so that any existing script gets updated
4030 # by --force-missing.
4031 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
4032 define_variable ('mkinstalldirs',
4033 "\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
4037 # Use $(install_sh), not $(mkdir_p) because the latter requires
4038 # at least one argument, and $(mkinstalldirs) used to work
4039 # even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
4040 define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
4043 reject_var ('CONFIG_HEADER',
4044 "`CONFIG_HEADER' is an anachronism; now determined "
4045 . "automatically\nfrom `$configure_ac'");
4048 foreach my $spec (@config_headers)
4050 my ($out, @ins) = split_config_file_spec ($spec);
4051 # Generate CONFIG_HEADER define.
4052 if ($relative_dir eq dirname ($out))
4054 push @config_h, basename ($out);
4058 push @config_h, "\$(top_builddir)/$out";
4061 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
4064 # Now look for other files in this directory which must be remade
4065 # by config.status, and generate rules for them.
4066 my @actual_other_files = ();
4067 foreach my $lfile (@other_input_files)
4071 if ($lfile =~ /^([^:]*):(.*)$/)
4073 # This is the ":" syntax of AC_OUTPUT.
4075 @inputs = split (':', $2);
4081 @inputs = $file . '.in';
4084 # Automake files should not be stored in here, but in %MAKE_LIST.
4085 prog_error ("$lfile in \@other_input_files\n"
4086 . "\@other_input_files = (@other_input_files)")
4087 if -f $file . '.am';
4089 my $local = basename ($file);
4091 # We skip files that aren't in this directory. However, if
4092 # the file's directory does not have a Makefile, and we are
4093 # currently doing `.', then we create a rule to rebuild the
4094 # file in the subdir.
4095 my $fd = dirname ($file);
4096 if ($fd ne $relative_dir)
4098 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4108 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
4110 # Cannot output rules for shell variables.
4111 next if (substitute_ac_subst_variables $local) =~ /\$/;
4113 $output_rules .= ($local . ': '
4114 . '$(top_builddir)/config.status '
4115 . "@rewritten_inputs\n"
4117 . 'cd $(top_builddir) && '
4118 . '$(SHELL) ./config.status '
4119 . ($relative_dir eq '.' ? '' : '$(subdir)/')
4122 push (@actual_other_files, $local);
4125 # For links we should clean destinations and distribute sources.
4126 foreach my $spec (@config_links)
4128 my ($link, $file) = split /:/, $spec;
4129 # Some people do AC_CONFIG_LINKS($computed). We only handle
4130 # the DEST:SRC form.
4132 my $where = $ac_config_files_location{$link};
4134 # Skip destinations that contain shell variables.
4135 if ((substitute_ac_subst_variables $link) !~ /\$/)
4137 # We skip links that aren't in this directory. However, if
4138 # the link's directory does not have a Makefile, and we are
4139 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
4140 # in `.'s Makefile.in.
4141 my $local = basename ($link);
4142 my $fd = dirname ($link);
4143 if ($fd ne $relative_dir)
4145 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
4154 push @actual_other_files, $local if $local;
4157 # Do not process sources that contain shell variables.
4158 if ((substitute_ac_subst_variables $file) !~ /\$/)
4160 my $fd = dirname ($file);
4162 # We distribute files that are in this directory.
4163 # At the top-level (`.') we also distribute files whose
4164 # directory does not have a Makefile.
4165 if (($fd eq $relative_dir)
4166 || ($relative_dir eq '.' && ! &is_make_dir ($fd)))
4168 # The following will distribute $file as a side-effect when
4169 # it is appropriate (i.e., when $file is not already an output).
4170 # We do not need the result, just the side-effect.
4171 rewrite_inputs_into_dependencies ($link, $file);
4176 # These files get removed by "make distclean".
4177 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
4178 @actual_other_files);
4184 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
4185 'oldinclude', 'pkginclude',
4189 next unless $_->[1] =~ /\..*$/;
4190 &saw_extension ($&);
4196 return if ! $seen_gettext || $relative_dir ne '.';
4198 my $subdirs = var 'SUBDIRS';
4202 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
4206 # Perform some sanity checks to help users get the right setup.
4207 # We disable these tests when po/ doesn't exist in order not to disallow
4208 # unusual gettext setups.
4213 # | 1) If a package doesn't have a directory po/ at top level, it
4214 # | will likely have multiple po/ directories in subpackages.
4216 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
4217 # | is used without 'external'. It is also useful to warn for the
4218 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
4219 # | warnings apply only to the usual layout of packages, therefore
4220 # | they should both be disabled if no po/ directory is found at
4225 my @subdirs = $subdirs->value_as_list_recursive;
4227 msg_var ('syntax', $subdirs,
4228 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
4229 if ! grep ($_ eq 'po', @subdirs);
4231 # intl/ is not required when AM_GNU_GETTEXT is called with
4232 # the `external' option.
4233 msg_var ('syntax', $subdirs,
4234 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
4235 if (! $seen_gettext_external
4236 && ! grep ($_ eq 'intl', @subdirs));
4238 # intl/ should not be used with AM_GNU_GETTEXT([external])
4239 msg_var ('syntax', $subdirs,
4240 "`intl' should not be in SUBDIRS when "
4241 . "AM_GNU_GETTEXT([external]) is used")
4242 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
4245 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
4248 # Handle footer elements.
4251 reject_rule ('.SUFFIXES',
4252 "use variable `SUFFIXES', not target `.SUFFIXES'");
4254 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
4255 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
4256 # anything else, by sticking it right after the default: target.
4257 $output_header .= ".SUFFIXES:\n";
4258 my $suffixes = var 'SUFFIXES';
4259 my @suffixes = Automake::Rule::suffixes;
4260 if (@suffixes || $suffixes)
4262 # Make sure SUFFIXES has unique elements. Sort them to ensure
4263 # the output remains consistent. However, $(SUFFIXES) is
4264 # always at the start of the list, unsorted. This is done
4265 # because make will choose rules depending on the ordering of
4266 # suffixes, and this lets the user have some control. Push
4267 # actual suffixes, and not $(SUFFIXES). Some versions of make
4268 # do not like variable substitutions on the .SUFFIXES line.
4269 my @user_suffixes = ($suffixes
4270 ? $suffixes->value_as_list_recursive : ());
4272 my %suffixes = map { $_ => 1 } @suffixes;
4273 delete @suffixes{@user_suffixes};
4275 $output_header .= (".SUFFIXES: "
4276 . join (' ', @user_suffixes, sort keys %suffixes)
4280 $output_trailer .= file_contents ('footer', new Automake::Location);
4284 # Generate `make install' rules.
4285 sub handle_install ()
4287 $output_rules .= &file_contents
4289 new Automake::Location,
4290 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
4291 ? (" \$(BUILT_SOURCES)\n"
4292 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
4294 'installdirs-local' => (user_phony_rule 'installdirs-local'
4295 ? ' installdirs-local' : ''),
4296 am__installdirs => variable_value ('am__installdirs') || '');
4300 # Deal with all and all-am.
4303 my ($makefile) = @_;
4307 # Put this at the beginning for the sake of non-GNU makes. This
4308 # is still wrong if these makes can run parallel jobs. But it is
4310 unshift (@all, basename ($makefile));
4312 foreach my $spec (@config_headers)
4314 my ($out, @ins) = split_config_file_spec ($spec);
4315 push (@all, basename ($out))
4316 if dirname ($out) eq $relative_dir;
4319 # Install `all' hooks.
4320 push (@all, "all-local")
4321 if user_phony_rule "all-local";
4323 &pretty_print_rule ("all-am:", "\t\t", @all);
4324 &depend ('.PHONY', 'all-am', 'all');
4329 my @local_headers = ();
4330 push @local_headers, '$(BUILT_SOURCES)'
4331 if var ('BUILT_SOURCES');
4332 foreach my $spec (@config_headers)
4334 my ($out, @ins) = split_config_file_spec ($spec);
4335 push @local_headers, basename ($out)
4336 if dirname ($out) eq $relative_dir;
4341 # We need to make sure config.h is built before we recurse.
4342 # We also want to make sure that built sources are built
4343 # before any ordinary `all' targets are run. We can't do this
4344 # by changing the order of dependencies to the "all" because
4345 # that breaks when using parallel makes. Instead we handle
4346 # things explicitly.
4347 $output_all .= ("all: @local_headers"
4349 . '$(MAKE) $(AM_MAKEFLAGS) '
4350 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
4355 $output_all .= "all: " . (var ('SUBDIRS')
4356 ? 'all-recursive' : 'all-am') . "\n\n";
4361 # &do_check_merge_target ()
4362 # -------------------------
4363 # Handle check merge target specially.
4364 sub do_check_merge_target ()
4366 # Include user-defined local form of target.
4367 push @check_tests, 'check-local'
4368 if user_phony_rule 'check-local';
4370 # In --cygnus mode, check doesn't depend on all.
4371 if (option 'cygnus')
4373 # Just run the local check rules.
4374 pretty_print_rule ('check-am:', "\t\t", @check);
4378 # The check target must depend on the local equivalent of
4379 # `all', to ensure all the primary targets are built. Then it
4380 # must build the local check rules.
4381 $output_rules .= "check-am: all-am\n";
4382 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4386 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4390 depend '.PHONY', 'check', 'check-am';
4391 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4392 $output_rules .= ("check: "
4393 . (var ('BUILT_SOURCES')
4394 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4396 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4400 # handle_clean ($MAKEFILE)
4401 # ------------------------
4402 # Handle all 'clean' targets.
4403 sub handle_clean ($)
4405 my ($makefile) = @_;
4407 # Clean the files listed in user variables if they exist.
4408 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4409 if var ('MOSTLYCLEANFILES');
4410 $clean_files{'$(CLEANFILES)'} = CLEAN
4411 if var ('CLEANFILES');
4412 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4413 if var ('DISTCLEANFILES');
4414 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4415 if var ('MAINTAINERCLEANFILES');
4417 # Built sources are automatically removed by maintainer-clean.
4418 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4419 if var ('BUILT_SOURCES');
4421 # Compute a list of "rm"s to run for each target.
4422 my %rms = (MOSTLY_CLEAN, [],
4425 MAINTAINER_CLEAN, []);
4427 foreach my $file (keys %clean_files)
4429 my $when = $clean_files{$file};
4430 prog_error 'invalid entry in %clean_files'
4431 unless exists $rms{$when};
4433 my $rm = "rm -f $file";
4434 # If file is a variable, make sure when don't call `rm -f' without args.
4435 $rm ="test -z \"$file\" || $rm"
4436 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4438 push @{$rms{$when}}, "\t-$rm\n";
4441 $output_rules .= &file_contents
4443 new Automake::Location,
4444 MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
4445 CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
4446 DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
4447 MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
4448 MAKEFILE => basename $makefile,
4453 # &target_cmp ($A, $B)
4454 # --------------------
4455 # Subroutine for &handle_factored_dependencies to let `.PHONY' and
4456 # other `.TARGETS' be last.
4459 return 0 if $a eq $b;
4461 my $a1 = substr ($a, 0, 1);
4462 my $b1 = substr ($b, 0, 1);
4465 return -1 if $b1 eq '.';
4466 return 1 if $a1 eq '.';
4472 # &handle_factored_dependencies ()
4473 # --------------------------------
4474 # Handle everything related to gathered targets.
4475 sub handle_factored_dependencies
4478 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4479 'uninstall-exec-local', 'uninstall-exec-hook',
4480 'uninstall-dvi-local',
4481 'uninstall-html-local',
4482 'uninstall-info-local',
4483 'uninstall-pdf-local',
4484 'uninstall-ps-local')
4488 reject_rule ($utarg, "use `$x', not `$utarg'");
4491 reject_rule ('install-local',
4492 "use `install-data-local' or `install-exec-local', "
4493 . "not `install-local'");
4495 reject_rule ('install-hook',
4496 "use `install-data-hook' or `install-exec-hook', "
4497 . "not `install-hook'");
4499 # Install the -local hooks.
4500 foreach (keys %dependencies)
4502 # Hooks are installed on the -am targets.
4504 depend ("$_-am", "$_-local")
4505 if user_phony_rule "$_-local";
4508 # Install the -hook hooks.
4509 # FIXME: Why not be as liberal as we are with -local hooks?
4510 foreach ('install-exec', 'install-data', 'uninstall')
4512 if (user_phony_rule "$_-hook")
4514 $actions{"$_-am"} .=
4515 ("\t\@\$(NORMAL_INSTALL)\n"
4516 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4517 depend ('.MAKE', "$_-am");
4521 # All the required targets are phony.
4522 depend ('.PHONY', keys %required_targets);
4524 # Actually output gathered targets.
4525 foreach (sort target_cmp keys %dependencies)
4527 # If there is nothing about this guy, skip it.
4529 unless (@{$dependencies{$_}}
4531 || $required_targets{$_});
4533 # Define gathered targets in undefined conditions.
4534 # FIXME: Right now we must handle .PHONY as an exception,
4535 # because people write things like
4536 # .PHONY: myphonytarget
4537 # to append dependencies. This would not work if Automake
4538 # refrained from defining its own .PHONY target as it does
4539 # with other overridden targets.
4540 # Likewise for `.MAKE'.
4541 my @undefined_conds = (TRUE,);
4542 if ($_ ne '.PHONY' && $_ ne '.MAKE')
4545 Automake::Rule::define ($_, 'internal',
4546 RULE_AUTOMAKE, TRUE, INTERNAL);
4548 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4549 foreach my $cond (@undefined_conds)
4551 my $condstr = $cond->subst_string;
4552 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4553 $output_rules .= $actions{$_} if defined $actions{$_};
4554 $output_rules .= "\n";
4560 # &handle_tests_dejagnu ()
4561 # ------------------------
4562 sub handle_tests_dejagnu
4564 push (@check_tests, 'check-DEJAGNU');
4565 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4569 # Handle TESTS variable and other checks.
4572 if (option 'dejagnu')
4574 &handle_tests_dejagnu;
4578 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4580 reject_var ($c, "`$c' defined but `dejagnu' not in "
4581 . "`AUTOMAKE_OPTIONS'");
4587 push (@check_tests, 'check-TESTS');
4588 $output_rules .= &file_contents ('check', new Automake::Location);
4590 # Tests that are known programs should have $(EXEEXT) appended.
4591 append_exeext { exists $known_programs{$_[0]} } 'TESTS';
4595 # Handle Emacs Lisp.
4596 sub handle_emacs_lisp
4598 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4601 return if ! @elfiles;
4603 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4604 map { $_->[1] } @elfiles);
4605 define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
4606 '$(am__ELFILES:.el=.elc)');
4607 # This one can be overridden by users.
4608 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
4610 push @all, '$(ELCFILES)';
4612 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4613 'EMACS', 'lispdir');
4614 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4615 &define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
4621 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4623 return if ! @pyfiles;
4625 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4626 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4627 &define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
4633 my @sourcelist = &am_install_var ('-candist',
4635 'java', 'noinst', 'check');
4636 return if ! @sourcelist;
4638 my @prefix = am_primary_prefixes ('JAVA', 1,
4639 'java', 'noinst', 'check');
4642 foreach my $curs (@prefix)
4645 if $curs eq 'EXTRA';
4647 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4653 push (@all, 'class' . $dir . '.stamp');
4657 # Handle some of the minor options.
4658 sub handle_minor_options
4660 if (option 'readme-alpha')
4662 if ($relative_dir eq '.')
4664 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4666 msg ('error-gnits', $package_version_location,
4667 "version `$package_version' doesn't follow " .
4670 if (defined $1 && -f 'README-alpha')
4672 # This means we have an alpha release. See
4673 # GNITS_VERSION_PATTERN for details.
4674 push_dist_common ('README-alpha');
4680 ################################################################
4682 # ($OUTPUT, @INPUTS)
4683 # &split_config_file_spec ($SPEC)
4684 # -------------------------------
4685 # Decode the Autoconf syntax for config files (files, headers, links
4687 sub split_config_file_spec ($)
4690 my ($output, @inputs) = split (/:/, $spec);
4692 push @inputs, "$output.in"
4695 return ($output, @inputs);
4699 # locate_am (@POSSIBLE_SOURCES)
4700 # -----------------------------
4701 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4702 # This functions returns the first *.in file for which a *.am exists.
4703 # It returns undef otherwise.
4708 foreach my $file (@rest)
4710 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4721 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4722 # ---------------------------------------------------
4723 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4725 sub scan_autoconf_config_files ($$)
4727 my ($where, $config_files) = @_;
4729 # Look at potential Makefile.am's.
4730 foreach (split ' ', $config_files)
4732 # Must skip empty string for Perl 4.
4733 next if $_ eq "\\" || $_ eq '';
4735 # Handle $local:$input syntax.
4736 my ($local, @rest) = split (/:/);
4737 @rest = ("$local.in",) unless @rest;
4738 my $input = locate_am @rest;
4741 # We have a file that automake should generate.
4742 $make_list{$input} = join (':', ($local, @rest));
4746 # We have a file that automake should cause to be
4747 # rebuilt, but shouldn't generate itself.
4748 push (@other_input_files, $_);
4750 $ac_config_files_location{$local} = $where;
4755 # &scan_autoconf_traces ($FILENAME)
4756 # ---------------------------------
4757 sub scan_autoconf_traces ($)
4759 my ($filename) = @_;
4761 # Macros to trace, with their minimal number of arguments.
4763 # IMPORTANT: If you add a macro here, you should also add this macro
4764 # ========= to Automake-preselection in autoconf/lib/autom4te.in.
4766 AC_CANONICAL_BUILD => 0,
4767 AC_CANONICAL_HOST => 0,
4768 AC_CANONICAL_TARGET => 0,
4769 AC_CONFIG_AUX_DIR => 1,
4770 AC_CONFIG_FILES => 1,
4771 AC_CONFIG_HEADERS => 1,
4772 AC_CONFIG_LIBOBJ_DIR => 1,
4773 AC_CONFIG_LINKS => 1,
4776 AC_REQUIRE_AUX_FILE => 1,
4777 AC_SUBST_TRACE => 1,
4778 AM_AUTOMAKE_VERSION => 1,
4779 AM_CONDITIONAL => 2,
4780 AM_ENABLE_MULTILIB => 0,
4781 AM_GNU_GETTEXT => 0,
4782 AM_INIT_AUTOMAKE => 0,
4783 AM_MAINTAINER_MODE => 0,
4784 AM_PROG_CC_C_O => 0,
4785 _AM_SUBST_NOTMAKE => 1,
4786 LT_SUPPORTED_TAG => 1,
4787 _LT_AC_TAGCONFIG => 0,
4793 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4795 # Use a separator unlikely to be used, not `:', the default, which
4796 # has a precise meaning for AC_CONFIG_FILES and so on.
4797 $traces .= join (' ',
4798 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4801 my $tracefh = new Automake::XFile ("$traces $filename |");
4802 verb "reading $traces";
4804 while ($_ = $tracefh->getline)
4807 my ($here, @args) = split (/::/);
4808 my $where = new Automake::Location $here;
4809 my $macro = $args[0];
4811 prog_error ("unrequested trace `$macro'")
4812 unless exists $traced{$macro};
4814 # Skip and diagnose malformed calls.
4815 if ($#args < $traced{$macro})
4817 msg ('syntax', $where, "not enough arguments for $macro");
4821 # Alphabetical ordering please.
4822 if ($macro eq 'AC_CANONICAL_BUILD')
4824 if ($seen_canonical <= AC_CANONICAL_BUILD)
4826 $seen_canonical = AC_CANONICAL_BUILD;
4827 $canonical_location = $where;
4830 elsif ($macro eq 'AC_CANONICAL_HOST')
4832 if ($seen_canonical <= AC_CANONICAL_HOST)
4834 $seen_canonical = AC_CANONICAL_HOST;
4835 $canonical_location = $where;
4838 elsif ($macro eq 'AC_CANONICAL_TARGET')
4840 $seen_canonical = AC_CANONICAL_TARGET;
4841 $canonical_location = $where;
4843 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4845 if ($seen_init_automake)
4847 error ($where, "AC_CONFIG_AUX_DIR must be called before "
4848 . "AM_INIT_AUTOMAKE...", partial => 1);
4849 error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
4851 $config_aux_dir = $args[1];
4852 $config_aux_dir_set_in_configure_ac = 1;
4853 $relative_dir = '.';
4854 check_directory ($config_aux_dir, $where);
4856 elsif ($macro eq 'AC_CONFIG_FILES')
4858 # Look at potential Makefile.am's.
4859 scan_autoconf_config_files ($where, $args[1]);
4861 elsif ($macro eq 'AC_CONFIG_HEADERS')
4863 foreach my $spec (split (' ', $args[1]))
4865 my ($dest, @src) = split (':', $spec);
4866 $ac_config_files_location{$dest} = $where;
4867 push @config_headers, $spec;
4870 elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
4872 $config_libobj_dir = $args[1];
4873 $relative_dir = '.';
4874 check_directory ($config_libobj_dir, $where);
4876 elsif ($macro eq 'AC_CONFIG_LINKS')
4878 foreach my $spec (split (' ', $args[1]))
4880 my ($dest, $src) = split (':', $spec);
4881 $ac_config_files_location{$dest} = $where;
4882 push @config_links, $spec;
4885 elsif ($macro eq 'AC_INIT')
4887 if (defined $args[2])
4889 $package_version = $args[2];
4890 $package_version_location = $where;
4893 elsif ($macro eq 'AC_LIBSOURCE')
4895 $libsources{$args[1]} = $here;
4897 elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
4899 # Only remember the first time a file is required.
4900 $required_aux_file{$args[1]} = $where
4901 unless exists $required_aux_file{$args[1]};
4903 elsif ($macro eq 'AC_SUBST_TRACE')
4905 # Just check for alphanumeric in AC_SUBST_TRACE. If you do
4906 # AC_SUBST(5), then too bad.
4907 $configure_vars{$args[1]} = $where
4908 if $args[1] =~ /^\w+$/;
4910 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4913 "version mismatch. This is Automake $VERSION,\n" .
4914 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4915 "comes from Automake $args[1]. You should recreate\n" .
4916 "aclocal.m4 with aclocal and run automake again.\n",
4917 # $? = 63 is used to indicate version mismatch to missing.
4919 if $VERSION ne $args[1];
4921 $seen_automake_version = 1;
4923 elsif ($macro eq 'AM_CONDITIONAL')
4925 $configure_cond{$args[1]} = $where;
4927 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4929 $seen_multilib = $where;
4931 elsif ($macro eq 'AM_GNU_GETTEXT')
4933 $seen_gettext = $where;
4934 $ac_gettext_location = $where;
4935 $seen_gettext_external = grep ($_ eq 'external', @args);
4937 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4939 $seen_init_automake = $where;
4940 if (defined $args[2])
4942 $package_version = $args[2];
4943 $package_version_location = $where;
4945 elsif (defined $args[1])
4948 if (process_global_option_list ($where,
4949 split (' ', $args[1])));
4952 elsif ($macro eq 'AM_MAINTAINER_MODE')
4954 $seen_maint_mode = $where;
4956 elsif ($macro eq 'AM_PROG_CC_C_O')
4958 $seen_cc_c_o = $where;
4960 elsif ($macro eq '_AM_SUBST_NOTMAKE')
4962 $ignored_configure_vars{$args[1]} = $where;
4964 elsif ($macro eq 'm4_include'
4965 || $macro eq 'm4_sinclude'
4966 || $macro eq 'sinclude')
4968 # Skip missing `sinclude'd files.
4969 next if $macro ne 'm4_include' && ! -f $args[1];
4971 # Some modified versions of Autoconf don't use
4972 # forzen files. Consequently it's possible that we see all
4973 # m4_include's performed during Autoconf's startup.
4974 # Obviously we don't want to distribute Autoconf's files
4975 # so we skip absolute filenames here.
4976 push @configure_deps, '$(top_srcdir)/' . $args[1]
4977 unless $here =~ m,^(?:\w:)?[\\/],;
4978 # Keep track of the greatest timestamp.
4981 my $mtime = mtime $args[1];
4982 $configure_deps_greatest_timestamp = $mtime
4983 if $mtime > $configure_deps_greatest_timestamp;
4986 elsif ($macro eq 'LT_SUPPORTED_TAG')
4988 $libtool_tags{$args[1]} = 1;
4989 $libtool_new_api = 1;
4991 elsif ($macro eq '_LT_AC_TAGCONFIG')
4993 # _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
4994 # We use it to detect whether tags are supported. Our
4995 # prefered interface is LT_SUPPORTED_TAG, but it was
4996 # introduced in Libtool 1.6.
4997 if (0 == keys %libtool_tags)
4999 # Hardcode the tags supported by Libtool 1.5.
5000 %libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
5009 # &scan_autoconf_files ()
5010 # -----------------------
5011 # Check whether we use `configure.ac' or `configure.in'.
5012 # Scan it (and possibly `aclocal.m4') for interesting things.
5013 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
5014 sub scan_autoconf_files ()
5016 # Reinitialize libsources here. This isn't really necessary,
5017 # since we currently assume there is only one configure.ac. But
5018 # that won't always be the case.
5021 # Keep track of the youngest configure dependency.
5022 $configure_deps_greatest_timestamp = mtime $configure_ac;
5023 if (-e 'aclocal.m4')
5025 my $mtime = mtime 'aclocal.m4';
5026 $configure_deps_greatest_timestamp = $mtime
5027 if $mtime > $configure_deps_greatest_timestamp;
5030 scan_autoconf_traces ($configure_ac);
5032 @configure_input_files = sort keys %make_list;
5033 # Set input and output files if not specified by user.
5036 @input_files = @configure_input_files;
5037 %output_files = %make_list;
5041 if (! $seen_init_automake)
5043 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
5044 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
5045 . "\nthat aclocal.m4 is present in the top-level directory,\n"
5046 . "and that aclocal.m4 was recently regenerated "
5047 . "(using aclocal).");
5051 if (! $seen_automake_version)
5053 if (-f 'aclocal.m4')
5055 error ($seen_init_automake,
5056 "your implementation of AM_INIT_AUTOMAKE comes from " .
5057 "an\nold Automake version. You should recreate " .
5058 "aclocal.m4\nwith aclocal and run automake again.\n",
5059 # $? = 63 is used to indicate version mismatch to missing.
5064 error ($seen_init_automake,
5065 "no proper implementation of AM_INIT_AUTOMAKE was " .
5066 "found,\nprobably because aclocal.m4 is missing...\n" .
5067 "You should run aclocal to create this file, then\n" .
5068 "run automake again.\n");
5075 # Reorder @input_files so that the Makefile that distributes aux
5076 # files is processed last. This is important because each directory
5077 # can require auxiliary scripts and we should wait until they have
5078 # been installed before distributing them.
5080 # The Makefile.in that distribute the aux files is the one in
5081 # $config_aux_dir or the top-level Makefile.
5082 my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
5083 my @new_input_files = ();
5084 while (@input_files)
5086 my $in = pop @input_files;
5087 my @ins = split (/:/, $output_files{$in});
5088 if (dirname ($ins[0]) eq $auxdirdist)
5090 push @new_input_files, $in;
5091 $automake_will_process_aux_dir = 1;
5095 unshift @new_input_files, $in;
5098 @input_files = @new_input_files;
5100 # If neither the auxdir/Makefile nor the ./Makefile are generated
5101 # by Automake, we won't distribute the aux files anyway. Assume
5102 # the user know what (s)he does, and pretend we will distribute
5103 # them to disable the error in require_file_internal.
5104 $automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
5106 # Look for some files we need. Always check for these. This
5107 # check must be done for every run, even those where we are only
5108 # looking at a subdir Makefile. We must set relative_dir for
5109 # maybe_push_required_file to work.
5110 $relative_dir = '.';
5111 foreach my $file (keys %required_aux_file)
5113 require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
5115 err_am "`install.sh' is an anachronism; use `install-sh' instead"
5116 if -f $config_aux_dir . '/install.sh';
5118 # Preserve dist_common for later.
5119 $configure_dist_common = variable_value ('DIST_COMMON') || '';
5123 ################################################################
5125 # Set up for Cygnus mode.
5128 my $cygnus = option 'cygnus';
5129 return unless $cygnus;
5131 set_strictness ('foreign');
5132 set_option ('no-installinfo', $cygnus);
5133 set_option ('no-dependencies', $cygnus);
5134 set_option ('no-dist', $cygnus);
5136 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
5137 if !$seen_maint_mode;
5140 # Do any extra checking for GNU standards.
5141 sub check_gnu_standards
5143 if ($relative_dir eq '.')
5145 # In top level (or only) directory.
5146 require_file ("$am_file.am", GNU,
5147 qw/INSTALL NEWS README AUTHORS ChangeLog/);
5149 # Accept one of these three licenses; default to COPYING.
5150 # Make sure we do not overwrite an existing license.
5152 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
5160 require_file ("$am_file.am", GNU, 'COPYING')
5164 for my $opt ('no-installman', 'no-installinfo')
5166 msg ('error-gnu', option $opt,
5167 "option `$opt' disallowed by GNU standards")
5172 # Do any extra checking for GNITS standards.
5173 sub check_gnits_standards
5175 if ($relative_dir eq '.')
5177 # In top level (or only) directory.
5178 require_file ("$am_file.am", GNITS, 'THANKS');
5182 ################################################################
5184 # Functions to handle files of each language.
5186 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
5187 # simple formula: Return value is LANG_SUBDIR if the resulting object
5188 # file should be in a subdir if the source file is, LANG_PROCESS if
5189 # file is to be dealt with, LANG_IGNORE otherwise.
5191 # Much of the actual processing is handled in
5192 # handle_single_transform. These functions exist so that
5193 # auxiliary information can be recorded for a later cleanup pass.
5194 # Note that the calls to these functions are computed, so don't bother
5195 # searching for their precise names in the source.
5197 # This is just a convenience function that can be used to determine
5198 # when a subdir object should be used.
5201 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
5204 # Rewrite a single C source file.
5207 my ($directory, $base, $ext, $nonansi_obj, $have_per_exec_flags, $var) = @_;
5209 if (option 'ansi2knr' && $base =~ /_$/)
5211 # FIXME: include line number in error.
5212 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
5215 my $r = LANG_PROCESS;
5216 if (option 'subdir-objects')
5219 if ($directory && $directory ne '.')
5221 $base = $directory . '/' . $base;
5223 # libtool is always able to put the object at the proper place,
5224 # so we do not have to require AM_PROG_CC_C_O when building .lo files.
5225 msg_var ('portability', $var,
5226 "compiling `$base.c' in subdir requires "
5227 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5228 uniq_scope => US_GLOBAL,
5229 uniq_part => 'AM_PROG_CC_C_O subdir')
5230 unless $seen_cc_c_o || $nonansi_obj eq '.lo';
5233 # In this case we already have the directory information, so
5234 # don't add it again.
5235 $de_ansi_files{$base} = '';
5239 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
5245 && $have_per_exec_flags
5246 && ! option 'subdir-objects'
5247 && $nonansi_obj ne '.lo')
5249 msg_var ('portability',
5250 $var, "compiling `$base.c' with per-target flags requires "
5251 . "`AM_PROG_CC_C_O' in `$configure_ac'",
5252 uniq_scope => US_GLOBAL,
5253 uniq_part => 'AM_PROG_CC_C_O per-target')
5259 # Rewrite a single C++ source file.
5260 sub lang_cxx_rewrite
5262 return &lang_sub_obj;
5265 # Rewrite a single header file.
5266 sub lang_header_rewrite
5268 # Header files are simply ignored.
5272 # Rewrite a single yacc file.
5273 sub lang_yacc_rewrite
5275 my ($directory, $base, $ext) = @_;
5277 my $r = &lang_sub_obj;
5278 (my $newext = $ext) =~ tr/y/c/;
5279 return ($r, $newext);
5282 # Rewrite a single yacc++ file.
5283 sub lang_yaccxx_rewrite
5285 my ($directory, $base, $ext) = @_;
5287 my $r = &lang_sub_obj;
5288 (my $newext = $ext) =~ tr/y/c/;
5289 return ($r, $newext);
5292 # Rewrite a single lex file.
5293 sub lang_lex_rewrite
5295 my ($directory, $base, $ext) = @_;
5297 my $r = &lang_sub_obj;
5298 (my $newext = $ext) =~ tr/l/c/;
5299 return ($r, $newext);
5302 # Rewrite a single lex++ file.
5303 sub lang_lexxx_rewrite
5305 my ($directory, $base, $ext) = @_;
5307 my $r = &lang_sub_obj;
5308 (my $newext = $ext) =~ tr/l/c/;
5309 return ($r, $newext);
5312 # Rewrite a single assembly file.
5313 sub lang_asm_rewrite
5315 return &lang_sub_obj;
5318 # Rewrite a single preprocessed assembly file.
5319 sub lang_cppasm_rewrite
5321 return &lang_sub_obj;
5324 # Rewrite a single Fortran 77 file.
5325 sub lang_f77_rewrite
5327 return LANG_PROCESS;
5330 # Rewrite a single Fortran file.
5333 return LANG_PROCESS;
5336 # Rewrite a single preprocessed Fortran file.
5337 sub lang_ppfc_rewrite
5339 return LANG_PROCESS;
5342 # Rewrite a single preprocessed Fortran 77 file.
5343 sub lang_ppf77_rewrite
5345 return LANG_PROCESS;
5348 # Rewrite a single ratfor file.
5349 sub lang_ratfor_rewrite
5351 return LANG_PROCESS;
5354 # Rewrite a single Objective C file.
5355 sub lang_objc_rewrite
5357 return &lang_sub_obj;
5360 # Rewrite a single Unified Parallel C file.
5361 sub lang_upc_rewrite
5363 return &lang_sub_obj;
5366 # Rewrite a single Java file.
5367 sub lang_java_rewrite
5372 # The lang_X_finish functions are called after all source file
5373 # processing is done. Each should handle defining rules for the
5374 # language, etc. A finish function is only called if a source file of
5375 # the appropriate type has been seen.
5379 # Push all libobjs files onto de_ansi_files. We actually only
5380 # push files which exist in the current directory, and which are
5381 # genuine source files.
5382 foreach my $file (keys %libsources)
5384 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5386 $de_ansi_files{$1} = ''
5390 if (option 'ansi2knr' && keys %de_ansi_files)
5392 # Make all _.c files depend on their corresponding .c files.
5394 foreach my $base (sort keys %de_ansi_files)
5396 # Each _.c file must depend on ansi2knr; otherwise it
5397 # might be used in a parallel build before it is built.
5398 # We need to support files in the srcdir and in the build
5399 # dir (because these files might be auto-generated. But
5400 # we can't use $< -- some makes only define $< during a
5402 my $ansfile = $de_ansi_files{$base} . $base . '.c';
5403 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
5404 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5405 . '`if test -f $(srcdir)/' . $ansfile
5406 . '; then echo $(srcdir)/' . $ansfile
5407 . '; else echo ' . $ansfile . '; fi` '
5408 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5409 . '| $(ANSI2KNR) > $@'
5410 # If ansi2knr fails then we shouldn't
5411 # create the _.c file
5412 . " || rm -f \$\@\n");
5413 push (@objects, $base . '_.$(OBJEXT)');
5414 push (@objects, $base . '_.lo')
5417 # Explicitly clean the _.c files if they are in a
5418 # subdirectory. (In the current directory they get erased
5419 # by a `rm -f *_.c' rule.)
5420 $clean_files{$base . '_.c'} = MOSTLY_CLEAN
5421 if dirname ($base) ne '.';
5424 # Make all _.o (and _.lo) files depend on ansi2knr.
5425 # Use a sneaky little hack to make it print nicely.
5426 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5430 # This is a yacc helper which is called whenever we have decided to
5431 # compile a yacc file.
5432 sub lang_yacc_target_hook
5434 my ($self, $aggregate, $output, $input, %transform) = @_;
5436 my $flag = $aggregate . "_YFLAGS";
5437 my $flagvar = var $flag;
5438 my $YFLAGSvar = var 'YFLAGS';
5439 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
5440 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
5442 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
5443 my $header = $output_base . '.h';
5445 # Found a `-d' that applies to the compilation of this file.
5446 # Add a dependency for the generated header file, and arrange
5447 # for that file to be included in the distribution.
5448 foreach my $cond (Automake::Rule::define (${header}, 'internal',
5449 RULE_AUTOMAKE, TRUE,
5452 my $condstr = $cond->subst_string;
5454 "$condstr${header}: $output\n"
5455 # Recover from removal of $header
5456 . "$condstr\t\@if test ! -f \$@; then \\\n"
5457 . "$condstr\t rm -f $output; \\\n"
5458 . "$condstr\t \$(MAKE) \$(AM_MAKEFLAGS) $output; \\\n"
5459 . "$condstr\telse :; fi\n";
5461 # Distribute the generated file, unless its .y source was
5462 # listed in a nodist_ variable. (&handle_source_transform
5463 # will set DIST_SOURCE.)
5464 &push_dist_common ($header)
5465 if $transform{'DIST_SOURCE'};
5467 # If the files are built in the build directory, then we want
5468 # to remove them with `make clean'. If they are in srcdir
5469 # they shouldn't be touched. However, we can't determine this
5470 # statically, and the GNU rules say that yacc/lex output files
5471 # should be removed by maintainer-clean. So that's what we
5473 $clean_files{$header} = MAINTAINER_CLEAN;
5475 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
5476 # See the comment above for $HEADER.
5477 $clean_files{$output} = MAINTAINER_CLEAN;
5480 # This is a lex helper which is called whenever we have decided to
5481 # compile a lex file.
5482 sub lang_lex_target_hook
5484 my ($self, $aggregate, $output, $input) = @_;
5485 # If the files are built in the build directory, then we want to
5486 # remove them with `make clean'. If they are in srcdir they
5487 # shouldn't be touched. However, we can't determine this
5488 # statically, and the GNU rules say that yacc/lex output files
5489 # should be removed by maintainer-clean. So that's what we do.
5490 $clean_files{$output} = MAINTAINER_CLEAN;
5493 # This is a helper for both lex and yacc.
5494 sub yacc_lex_finish_helper
5496 return if defined $language_scratch{'lex-yacc-done'};
5497 $language_scratch{'lex-yacc-done'} = 1;
5499 # If there is more than one distinct yacc (resp lex) source file
5500 # in a given directory, then the `ylwrap' program is required to
5501 # allow parallel builds to work correctly. FIXME: for now, no
5503 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
5504 &define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
5507 sub lang_yacc_finish
5509 return if defined $language_scratch{'yacc-done'};
5510 $language_scratch{'yacc-done'} = 1;
5512 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5514 &yacc_lex_finish_helper
5515 if count_files_for_language ('yacc') > 1;
5521 return if defined $language_scratch{'lex-done'};
5522 $language_scratch{'lex-done'} = 1;
5524 &yacc_lex_finish_helper
5525 if count_files_for_language ('lex') > 1;
5529 # Given a hash table of linker names, pick the name that has the most
5530 # precedence. This is lame, but something has to have global
5531 # knowledge in order to eliminate the conflict. Add more linkers as
5537 foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
5539 return $l if defined $linkers{$l};
5544 # Called to indicate that an extension was used.
5548 if (! defined $extension_seen{$ext})
5550 $extension_seen{$ext} = 1;
5554 ++$extension_seen{$ext};
5558 # Return the number of files seen for a given language. Knows about
5559 # special cases we care about. FIXME: this is hideous. We need
5560 # something that involves real language objects. For instance yacc
5561 # and yaccxx could both derive from a common yacc class which would
5562 # know about the strange ylwrap requirement. (Or better yet we could
5563 # just not support legacy yacc!)
5564 sub count_files_for_language
5569 if ($name eq 'yacc' || $name eq 'yaccxx')
5571 @names = ('yacc', 'yaccxx');
5573 elsif ($name eq 'lex' || $name eq 'lexxx')
5575 @names = ('lex', 'lexxx');
5583 foreach $name (@names)
5585 my $lang = $languages{$name};
5586 foreach my $ext (@{$lang->extensions})
5588 $r += $extension_seen{$ext}
5589 if defined $extension_seen{$ext};
5596 # Called to ask whether source files have been seen . If HEADERS is 1,
5597 # headers can be included.
5602 # count all the sources
5604 foreach my $val (values %extension_seen)
5611 $count -= count_files_for_language ('header');
5618 # register_language (%ATTRIBUTE)
5619 # ------------------------------
5620 # Register a single language.
5621 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5622 sub register_language (%)
5628 unless defined $option{'ansi'};
5629 $option{'autodep'} = 'no'
5630 unless defined $option{'autodep'};
5631 $option{'linker'} = ''
5632 unless defined $option{'linker'};
5633 $option{'flags'} = []
5634 unless defined $option{'flags'};
5635 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5636 unless defined $option{'output_extensions'};
5637 $option{'nodist_specific'} = 0
5638 unless defined $option{'nodist_specific'};
5640 my $lang = new Language (%option);
5643 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5644 $languages{$lang->name} = $lang;
5645 my $link = $lang->linker;
5648 if (exists $link_languages{$link})
5650 prog_error ("`$link' has different definitions in "
5651 . $lang->name . " and " . $link_languages{$link}->name)
5652 if $lang->link ne $link_languages{$link}->link;
5656 $link_languages{$link} = $lang;
5660 # Update the pattern of known extensions.
5661 accept_extensions (@{$lang->extensions});
5663 # Upate the $suffix_rule map.
5664 foreach my $suffix (@{$lang->extensions})
5666 foreach my $dest (&{$lang->output_extensions} ($suffix))
5668 register_suffix_rule (INTERNAL, $suffix, $dest);
5673 # derive_suffix ($EXT, $OBJ)
5674 # --------------------------
5675 # This function is used to find a path from a user-specified suffix $EXT
5676 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5677 sub derive_suffix ($$)
5679 my ($source_ext, $obj) = @_;
5681 while (! $extension_map{$source_ext}
5682 && $source_ext ne $obj
5683 && exists $suffix_rules->{$source_ext}
5684 && exists $suffix_rules->{$source_ext}{$obj})
5686 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5693 ################################################################
5695 # Pretty-print something and append to output_rules.
5696 sub pretty_print_rule
5698 $output_rules .= &makefile_wrap (@_);
5702 ################################################################
5705 ## -------------------------------- ##
5706 ## Handling the conditional stack. ##
5707 ## -------------------------------- ##
5711 # make_conditional_string ($NEGATE, $COND)
5712 # ----------------------------------------
5713 sub make_conditional_string ($$)
5715 my ($negate, $cond) = @_;
5716 $cond = "${cond}_TRUE"
5717 unless $cond =~ /^TRUE|FALSE$/;
5718 $cond = Automake::Condition::conditional_negate ($cond)
5725 # cond_stack_if ($NEGATE, $COND, $WHERE)
5726 # --------------------------------------
5727 sub cond_stack_if ($$$)
5729 my ($negate, $cond, $where) = @_;
5731 error $where, "$cond does not appear in AM_CONDITIONAL"
5732 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5734 push (@cond_stack, make_conditional_string ($negate, $cond));
5736 return new Automake::Condition (@cond_stack);
5741 # cond_stack_else ($NEGATE, $COND, $WHERE)
5742 # ----------------------------------------
5743 sub cond_stack_else ($$$)
5745 my ($negate, $cond, $where) = @_;
5749 error $where, "else without if";
5753 $cond_stack[$#cond_stack] =
5754 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5756 # If $COND is given, check against it.
5759 $cond = make_conditional_string ($negate, $cond);
5761 error ($where, "else reminder ($negate$cond) incompatible with "
5762 . "current conditional: $cond_stack[$#cond_stack]")
5763 if $cond_stack[$#cond_stack] ne $cond;
5766 return new Automake::Condition (@cond_stack);
5771 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5772 # -----------------------------------------
5773 sub cond_stack_endif ($$$)
5775 my ($negate, $cond, $where) = @_;
5780 error $where, "endif without if";
5784 # If $COND is given, check against it.
5787 $cond = make_conditional_string ($negate, $cond);
5789 error ($where, "endif reminder ($negate$cond) incompatible with "
5790 . "current conditional: $cond_stack[$#cond_stack]")
5791 if $cond_stack[$#cond_stack] ne $cond;
5796 return new Automake::Condition (@cond_stack);
5803 ## ------------------------ ##
5804 ## Handling the variables. ##
5805 ## ------------------------ ##
5808 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5809 # -----------------------------------------------------
5810 # Like define_variable, but the value is a list, and the variable may
5811 # be defined conditionally. The second argument is the Condition
5812 # under which the value should be defined; this should be the empty
5813 # string to define the variable unconditionally. The third argument
5814 # is a list holding the values to use for the variable. The value is
5815 # pretty printed in the output file.
5816 sub define_pretty_variable ($$$@)
5818 my ($var, $cond, $where, @value) = @_;
5820 if (! vardef ($var, $cond))
5822 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5823 '', $where, VAR_PRETTY);
5824 rvar ($var)->rdef ($cond)->set_seen;
5829 # define_variable ($VAR, $VALUE, $WHERE)
5830 # --------------------------------------
5831 # Define a new Automake Makefile variable VAR to VALUE, but only if
5832 # not already defined.
5833 sub define_variable ($$$)
5835 my ($var, $value, $where) = @_;
5836 define_pretty_variable ($var, TRUE, $where, $value);
5840 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5841 # -----------------------------------------------------------
5842 # Define the $VAR which content is the list of file names composed of
5843 # a @BASENAME and the $EXTENSION.
5844 sub define_files_variable ($\@$$)
5846 my ($var, $basename, $extension, $where) = @_;
5847 define_variable ($var,
5848 join (' ', map { "$_.$extension" } @$basename),
5853 # Like define_variable, but define a variable to be the configure
5854 # substitution by the same name.
5855 sub define_configure_variable ($)
5859 my $pretty = VAR_ASIS;
5860 my $owner = VAR_CONFIGURE;
5862 # Some variables we do not want to output. For instance it
5863 # would be a bad idea to output `U = @U@` when `@U@` can be
5864 # substituted as `\`.
5865 $pretty = VAR_SILENT if exists $ignored_configure_vars{$var};
5867 # ANSI2KNR is a variable that Automake wants to redefine, so
5868 # it must be owned by Automake. (It is also used as a proof
5869 # that AM_C_PROTOTYPES has been run, that's why we do not simply
5870 # omit the AC_SUBST.)
5871 $owner = VAR_AUTOMAKE if $var eq 'ANSI2KNR';
5873 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5874 '', $configure_vars{$var}, $pretty);
5878 # define_compiler_variable ($LANG)
5879 # --------------------------------
5880 # Define a compiler variable. We also handle defining the `LT'
5881 # version of the command when using libtool.
5882 sub define_compiler_variable ($)
5886 my ($var, $value) = ($lang->compiler, $lang->compile);
5887 my $libtool_tag = '';
5888 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5889 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5890 &define_variable ($var, $value, INTERNAL);
5891 &define_variable ("LT$var",
5892 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5893 . "\$(LIBTOOLFLAGS) --mode=compile $value",
5899 # define_linker_variable ($LANG)
5900 # ------------------------------
5901 # Define linker variables.
5902 sub define_linker_variable ($)
5906 my $libtool_tag = '';
5907 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5908 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5910 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5911 # CCLINK = $(CCLD) blah blah...
5912 &define_variable ($lang->linker,
5914 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) "
5915 . "\$(LIBTOOLFLAGS) --mode=link " : '')
5920 sub define_per_target_linker_variable ($$)
5922 my ($linker, $target) = @_;
5924 # If the user wrote a custom link command, we don't define ours.
5925 return "${target}_LINK"
5926 if set_seen "${target}_LINK";
5928 my $xlink = $linker ? $linker : 'LINK';
5930 my $lang = $link_languages{$xlink};
5931 prog_error "Unknown language for linker variable `$xlink'"
5934 my $link_command = $lang->link;
5937 my $libtool_tag = '';
5938 $libtool_tag = '--tag=' . $lang->libtool_tag . ' '
5939 if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
5942 "\$(LIBTOOL) $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
5943 . "--mode=link " . $link_command;
5946 # Rewrite each occurrence of `AM_$flag' in the link
5947 # command into `${derived}_$flag' if it exists.
5948 my $orig_command = $link_command;
5949 my @flags = (@{$lang->flags}, 'LDFLAGS');
5950 push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
5951 for my $flag (@flags)
5953 my $val = "${target}_$flag";
5954 $link_command =~ s/\(AM_$flag\)/\($val\)/
5958 # If the computed command is the same as the generic command, use
5959 # the command linker variable.
5960 return $lang->linker
5961 if $link_command eq $orig_command;
5963 &define_variable ("${target}_LINK", $link_command, INTERNAL);
5964 return "${target}_LINK";
5967 ################################################################
5969 # &check_trailing_slash ($WHERE, $LINE)
5970 # --------------------------------------
5971 # Return 1 iff $LINE ends with a slash.
5972 # Might modify $LINE.
5973 sub check_trailing_slash ($\$)
5975 my ($where, $line) = @_;
5977 # Ignore `##' lines.
5978 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5980 # Catch and fix a common error.
5981 msg "syntax", $where, "whitespace following trailing backslash"
5982 if $$line =~ s/\\\s+\n$/\\\n/;
5984 return $$line =~ /\\$/;
5988 # &read_am_file ($AMFILE, $WHERE)
5989 # -------------------------------
5990 # Read Makefile.am and set up %contents. Simultaneously copy lines
5991 # from Makefile.am into $output_trailer, or define variables as
5992 # appropriate. NOTE we put rules in the trailer section. We want
5993 # user rules to come after our generated stuff.
5994 sub read_am_file ($$)
5996 my ($amfile, $where) = @_;
5998 my $am_file = new Automake::XFile ("< $amfile");
5999 verb "reading $amfile";
6001 # Keep track of the youngest output dependency.
6002 my $mtime = mtime $amfile;
6003 $output_deps_greatest_timestamp = $mtime
6004 if $mtime > $output_deps_greatest_timestamp;
6010 my $var_look = VAR_ASIS;
6012 use constant IN_VAR_DEF => 0;
6013 use constant IN_RULE_DEF => 1;
6014 use constant IN_COMMENT => 2;
6015 my $prev_state = IN_RULE_DEF;
6017 while ($_ = $am_file->getline)
6019 $where->set ("$amfile:$.");
6020 if (/$IGNORE_PATTERN/o)
6022 # Merely delete comments beginning with two hashes.
6024 elsif (/$WHITE_PATTERN/o)
6026 error $where, "blank line following trailing backslash"
6028 # Stick a single white line before the incoming macro or rule.
6031 # Flush all comments seen so far.
6034 $output_vars .= $comment;
6038 elsif (/$COMMENT_PATTERN/o)
6040 # Stick comments before the incoming macro or rule. Make
6041 # sure a blank line precedes the first block of comments.
6042 $spacing = "\n" unless $blank;
6044 $comment .= $spacing . $_;
6046 $prev_state = IN_COMMENT;
6052 $saw_bk = check_trailing_slash ($where, $_);
6055 # We save the conditional stack on entry, and then check to make
6056 # sure it is the same on exit. This lets us conditionally include
6058 my @saved_cond_stack = @cond_stack;
6059 my $cond = new Automake::Condition (@cond_stack);
6061 my $last_var_name = '';
6062 my $last_var_type = '';
6063 my $last_var_value = '';
6065 # FIXME: shouldn't use $_ in this loop; it is too big.
6068 $where->set ("$amfile:$.");
6070 # Make sure the line is \n-terminated.
6074 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6075 # used by users. @MAINT@ is an anachronism now.
6076 $_ =~ s/\@MAINT\@//g
6077 unless $seen_maint_mode;
6079 my $new_saw_bk = check_trailing_slash ($where, $_);
6081 if (/$IGNORE_PATTERN/o)
6083 # Merely delete comments beginning with two hashes.
6085 # Keep any backslash from the previous line.
6086 $new_saw_bk = $saw_bk;
6088 elsif (/$WHITE_PATTERN/o)
6090 # Stick a single white line before the incoming macro or rule.
6092 error $where, "blank line following trailing backslash"
6095 elsif (/$COMMENT_PATTERN/o)
6097 error $where, "comment following trailing backslash"
6098 if $saw_bk && $comment eq '';
6100 # Stick comments before the incoming macro or rule.
6101 $comment .= $spacing . $_;
6103 $prev_state = IN_COMMENT;
6107 if ($prev_state == IN_RULE_DEF)
6109 my $cond = new Automake::Condition @cond_stack;
6110 $output_trailer .= $cond->subst_string;
6111 $output_trailer .= $_;
6113 elsif ($prev_state == IN_COMMENT)
6115 # If the line doesn't start with a `#', add it.
6116 # We do this because a continued comment like
6120 # is not portable. BSD make doesn't honor
6121 # escaped newlines in comments.
6123 $comment .= $spacing . $_;
6125 else # $prev_state == IN_VAR_DEF
6127 $last_var_value .= ' '
6128 unless $last_var_value =~ /\s$/;
6129 $last_var_value .= $_;
6133 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6134 $last_var_type, $cond,
6135 $last_var_value, $comment,
6136 $last_where, VAR_ASIS)
6138 $comment = $spacing = '';
6143 elsif (/$IF_PATTERN/o)
6145 $cond = cond_stack_if ($1, $2, $where);
6147 elsif (/$ELSE_PATTERN/o)
6149 $cond = cond_stack_else ($1, $2, $where);
6151 elsif (/$ENDIF_PATTERN/o)
6153 $cond = cond_stack_endif ($1, $2, $where);
6156 elsif (/$RULE_PATTERN/o)
6159 $prev_state = IN_RULE_DEF;
6161 # For now we have to output all definitions of user rules
6162 # and can't diagnose duplicates (see the comment in
6163 # Automake::Rule::define). So we go on and ignore the return value.
6164 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
6166 check_variable_expansions ($_, $where);
6168 $output_trailer .= $comment . $spacing;
6169 my $cond = new Automake::Condition @cond_stack;
6170 $output_trailer .= $cond->subst_string;
6171 $output_trailer .= $_;
6172 $comment = $spacing = '';
6174 elsif (/$ASSIGNMENT_PATTERN/o)
6176 # Found a macro definition.
6177 $prev_state = IN_VAR_DEF;
6178 $last_var_name = $1;
6179 $last_var_type = $2;
6180 $last_var_value = $3;
6181 $last_where = $where->clone;
6182 if ($3 ne '' && substr ($3, -1) eq "\\")
6184 # We preserve the `\' because otherwise the long lines
6185 # that are generated will be truncated by broken
6187 $last_var_value = $3 . "\n";
6189 # Normally we try to output variable definitions in the
6190 # same format they were input. However, POSIX compliant
6191 # systems are not required to support lines longer than
6192 # 2048 bytes (most notably, some sed implementation are
6193 # limited to 4000 bytes, and sed is used by config.status
6194 # to rewrite Makefile.in into Makefile). Moreover nobody
6195 # would really write such long lines by hand since it is
6196 # hardly maintainable. So if a line is longer that 1000
6197 # bytes (an arbitrary limit), assume it has been
6198 # automatically generated by some tools, and flatten the
6199 # variable definition. Otherwise, keep the variable as it
6201 $var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
6205 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
6206 $last_var_type, $cond,
6207 $last_var_value, $comment,
6208 $last_where, $var_look)
6210 $comment = $spacing = '';
6211 $var_look = VAR_ASIS;
6214 elsif (/$INCLUDE_PATTERN/o)
6218 if ($path =~ s/^\$\(top_srcdir\)\///)
6220 push (@include_stack, "\$\(top_srcdir\)/$path");
6221 # Distribute any included file.
6223 # Always use the $(top_srcdir) prefix in DIST_COMMON,
6224 # otherwise OSF make will implicitly copy the included
6225 # file in the build tree during `make distdir' to satisfy
6227 # (subdircond2.test and subdircond3.test will fail.)
6228 push_dist_common ("\$\(top_srcdir\)/$path");
6232 $path =~ s/\$\(srcdir\)\///;
6233 push (@include_stack, "\$\(srcdir\)/$path");
6234 # Always use the $(srcdir) prefix in DIST_COMMON,
6235 # otherwise OSF make will implicitly copy the included
6236 # file in the build tree during `make distdir' to satisfy
6238 # (subdircond2.test and subdircond3.test will fail.)
6239 push_dist_common ("\$\(srcdir\)/$path");
6240 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
6242 $where->push_context ("`$path' included from here");
6243 &read_am_file ($path, $where);
6244 $where->pop_context;
6248 # This isn't an error; it is probably a continued rule.
6249 # In fact, this is what we assume.
6250 $prev_state = IN_RULE_DEF;
6251 check_variable_expansions ($_, $where);
6252 $output_trailer .= $comment . $spacing;
6253 my $cond = new Automake::Condition @cond_stack;
6254 $output_trailer .= $cond->subst_string;
6255 $output_trailer .= $_;
6256 $comment = $spacing = '';
6257 error $where, "`#' comment at start of rule is unportable"
6258 if $_ =~ /^\t\s*\#/;
6261 $saw_bk = $new_saw_bk;
6262 $_ = $am_file->getline;
6265 $output_trailer .= $comment;
6267 error ($where, "trailing backslash on last line")
6270 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
6271 : "too many conditionals closed in include file"))
6272 if "@saved_cond_stack" ne "@cond_stack";
6276 # define_standard_variables ()
6277 # ----------------------------
6278 # A helper for read_main_am_file which initializes configure variables
6279 # and variables from header-vars.am.
6280 sub define_standard_variables
6282 my $saved_output_vars = $output_vars;
6283 my ($comments, undef, $rules) =
6284 file_contents_internal (1, "$libdir/am/header-vars.am",
6285 new Automake::Location);
6287 foreach my $var (sort keys %configure_vars)
6289 &define_configure_variable ($var);
6292 $output_vars .= $comments . $rules;
6295 # Read main am file.
6296 sub read_main_am_file
6300 # This supports the strange variable tricks we are about to play.
6301 prog_error (macros_dump () . "variable defined before read_main_am_file")
6302 if (scalar (variables) > 0);
6304 # Generate copyright header for generated Makefile.in.
6305 # We do discard the output of predefined variables, handled below.
6306 $output_vars = ("# $in_file_name generated by automake "
6307 . $VERSION . " from $am_file_name.\n");
6308 $output_vars .= '# ' . subst ('configure_input') . "\n";
6309 $output_vars .= $gen_copyright;
6311 # We want to predefine as many variables as possible. This lets
6312 # the user set them with `+=' in Makefile.am.
6313 &define_standard_variables;
6315 # Read user file, which might override some of our values.
6316 &read_am_file ($amfile, new Automake::Location);
6321 ################################################################
6324 # &flatten ($STRING)
6325 # ------------------
6326 # Flatten the $STRING and return the result.
6339 # transform($TOKEN, \%PAIRS)
6340 # ==========================
6341 # If ($TOKEN, $VAL) is in %PAIRS:
6342 # - replaces %$TOKEN% with $VAL,
6343 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6344 # - replaces %?$TOKEN% with TRUE or FALSE.
6347 my ($token, $transform) = @_;
6349 if (substr ($token, 0, 1) eq '%')
6351 my $cond = (substr ($token, 1, 1) eq '?') ? 1 : 0;
6352 $token = substr ($token, 1 + $cond, -1);
6353 my $val = $transform->{$token};
6354 prog_error "Unknown %token% `$token'" unless defined $val;
6357 return $val ? 'TRUE' : 'FALSE';
6364 # Now $token is '?xxx?' or '?!xxx?'.
6365 my $neg = (substr ($token, 1, 1) eq '!') ? 1 : 0;
6366 $token = substr ($token, 1 + $neg, -1);
6367 my $val = $transform->{$token};
6368 prog_error "Unknown ?token? `$token' (neg = $neg)" unless defined $val;
6369 return (!!$val == $neg) ? '##%' : '';
6373 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6374 # ------------------------------------------
6375 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6377 sub make_paragraphs ($%)
6379 my ($file, %transform) = @_;
6381 # Complete %transform with global options.
6382 # Note that %transform goes last, so it overrides global options.
6383 %transform = ('CYGNUS' => !! option 'cygnus',
6385 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6387 'BZIP2' => !! option 'dist-bzip2',
6388 'COMPRESS' => !! option 'dist-tarZ',
6389 'GZIP' => ! option 'no-dist-gzip',
6390 'SHAR' => !! option 'dist-shar',
6391 'ZIP' => !! option 'dist-zip',
6393 'INSTALL-INFO' => ! option 'no-installinfo',
6394 'INSTALL-MAN' => ! option 'no-installman',
6395 'CK-NEWS' => !! option 'check-news',
6397 'SUBDIRS' => !! var ('SUBDIRS'),
6398 'TOPDIR_P' => $relative_dir eq '.',
6400 'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
6401 'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
6402 'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
6404 'LIBTOOL' => !! var ('LIBTOOL'),
6406 'FIRST' => ! $transformed_files{$file},
6409 $transformed_files{$file} = 1;
6410 $_ = $am_file_cache{$file};
6414 verb "reading $file";
6415 # Swallow the whole file.
6416 my $fc_file = new Automake::XFile "< $file";
6417 my $saved_dollar_slash = $/;
6419 $_ = $fc_file->getline;
6420 $/ = $saved_dollar_slash;
6423 # Remove ##-comments.
6424 # Besides we don't need more than two consecutive new-lines.
6425 s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
6427 $am_file_cache{$file} = $_;
6430 # Substitute Automake template tokens.
6431 s/(?:%\??[\w\-]+%|\?!?[\w\-]+\?)/transform($&, \%transform)/ge;
6432 # transform() may have added some ##%-comments to strip.
6433 # (we use `##%' instead of `##' so we can distinguish ##%##%##% from
6434 # ####### and do not remove the latter.)
6435 s/^[ \t]*(?:##%)+.*\n//gm;
6437 # Split at unescaped new lines.
6438 my @lines = split (/(?<!\\)\n/, $_);
6441 while (defined ($_ = shift @lines))
6444 # If we are a rule, eat as long as we start with a tab.
6445 if (/$RULE_PATTERN/smo)
6447 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
6449 $paragraph .= "\n$_";
6451 unshift (@lines, $_);
6454 # If we are a comments, eat as much comments as you can.
6455 elsif (/$COMMENT_PATTERN/smo)
6457 while (defined ($_ = shift @lines)
6458 && $_ =~ /$COMMENT_PATTERN/smo)
6460 $paragraph .= "\n$_";
6462 unshift (@lines, $_);
6465 push @res, $paragraph;
6473 # ($COMMENT, $VARIABLES, $RULES)
6474 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
6475 # -------------------------------------------------------------
6476 # Return contents of a file from $libdir/am, automatically skipping
6477 # macros or rules which are already known. $IS_AM iff the caller is
6478 # reading an Automake file (as opposed to the user's Makefile.am).
6479 sub file_contents_internal ($$$%)
6481 my ($is_am, $file, $where, %transform) = @_;
6483 $where->set ($file);
6485 my $result_vars = '';
6486 my $result_rules = '';
6490 # The following flags are used to track rules spanning across
6491 # multiple paragraphs.
6492 my $is_rule = 0; # 1 if we are processing a rule.
6493 my $discard_rule = 0; # 1 if the current rule should not be output.
6495 # We save the conditional stack on entry, and then check to make
6496 # sure it is the same on exit. This lets us conditionally include
6498 my @saved_cond_stack = @cond_stack;
6499 my $cond = new Automake::Condition (@cond_stack);
6501 foreach (make_paragraphs ($file, %transform))
6503 # FIXME: no line number available.
6504 $where->set ($file);
6507 error $where, "blank line following trailing backslash:\n$_"
6509 error $where, "comment following trailing backslash:\n$_"
6515 # Stick empty line before the incoming macro or rule.
6518 elsif (/$COMMENT_PATTERN/mso)
6521 # Stick comments before the incoming macro or rule.
6525 # Handle inclusion of other files.
6526 elsif (/$INCLUDE_PATTERN/o)
6530 my $file = ($is_am ? "$libdir/am/" : '') . $1;
6531 $where->push_context ("`$file' included from here");
6533 my ($com, $vars, $rules)
6534 = file_contents_internal ($is_am, $file, $where, %transform);
6535 $where->pop_context;
6537 $result_vars .= $vars;
6538 $result_rules .= $rules;
6542 # Handling the conditionals.
6543 elsif (/$IF_PATTERN/o)
6545 $cond = cond_stack_if ($1, $2, $file);
6547 elsif (/$ELSE_PATTERN/o)
6549 $cond = cond_stack_else ($1, $2, $file);
6551 elsif (/$ENDIF_PATTERN/o)
6553 $cond = cond_stack_endif ($1, $2, $file);
6557 elsif (/$RULE_PATTERN/mso)
6561 # Separate relationship from optional actions: the first
6562 # `new-line tab" not preceded by backslash (continuation
6565 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
6566 my ($relationship, $actions) = ($1, $2 || '');
6568 # Separate targets from dependencies: the first colon.
6569 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
6570 my ($targets, $dependencies) = ($1, $2);
6571 # Remove the escaped new lines.
6572 # I don't know why, but I have to use a tmp $flat_deps.
6573 my $flat_deps = &flatten ($dependencies);
6574 my @deps = split (' ', $flat_deps);
6576 foreach (split (' ' , $targets))
6578 # FIXME: 1. We are not robust to people defining several targets
6579 # at once, only some of them being in %dependencies. The
6580 # actions from the targets in %dependencies are usually generated
6581 # from the content of %actions, but if some targets in $targets
6582 # are not in %dependencies the ELSE branch will output
6583 # a rule for all $targets (i.e. the targets which are both
6584 # in %dependencies and $targets will have two rules).
6586 # FIXME: 2. The logic here is not able to output a
6587 # multi-paragraph rule several time (e.g. for each condition
6588 # it is defined for) because it only knows the first paragraph.
6590 # FIXME: 3. We are not robust to people defining a subset
6591 # of a previously defined "multiple-target" rule. E.g.
6592 # `foo:' after `foo bar:'.
6594 # Output only if not in FALSE.
6595 if (defined $dependencies{$_} && $cond != FALSE)
6597 &depend ($_, @deps);
6600 $actions{$_} .= "\n$actions" if $actions;
6604 $actions{$_} = $actions;
6609 # Free-lance dependency. Output the rule for all the
6610 # targets instead of one by one.
6611 my @undefined_conds =
6612 Automake::Rule::define ($targets, $file,
6613 $is_am ? RULE_AUTOMAKE : RULE_USER,
6615 for my $undefined_cond (@undefined_conds)
6617 my $condparagraph = $paragraph;
6618 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
6619 $result_rules .= "$spacing$comment$condparagraph\n";
6621 if (scalar @undefined_conds == 0)
6623 # Remember to discard next paragraphs
6624 # if they belong to this rule.
6625 # (but see also FIXME: #2 above.)
6628 $comment = $spacing = '';
6634 elsif (/$ASSIGNMENT_PATTERN/mso)
6636 my ($var, $type, $val) = ($1, $2, $3);
6637 error $where, "variable `$var' with trailing backslash"
6642 Automake::Variable::define ($var,
6643 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
6644 $type, $cond, $val, $comment, $where,
6648 $comment = $spacing = '';
6652 # This isn't an error; it is probably some tokens which
6653 # configure is supposed to replace, such as `@SET-MAKE@',
6654 # or some part of a rule cut by an if/endif.
6655 if (! $cond->false && ! ($is_rule && $discard_rule))
6657 s/^/$cond->subst_string/gme;
6658 $result_rules .= "$spacing$comment$_\n";
6660 $comment = $spacing = '';
6664 error ($where, @cond_stack ?
6665 "unterminated conditionals: @cond_stack" :
6666 "too many conditionals closed in include file")
6667 if "@saved_cond_stack" ne "@cond_stack";
6669 return ($comment, $result_vars, $result_rules);
6674 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6675 # ------------------------------------------------
6676 # Return contents of a file from $libdir/am, automatically skipping
6677 # macros or rules which are already known.
6678 sub file_contents ($$%)
6680 my ($basename, $where, %transform) = @_;
6681 my ($comments, $variables, $rules) =
6682 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6684 return "$comments$variables$rules";
6689 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6690 # -----------------------------------------------------
6691 # Find all variable prefixes that are used for install directories. A
6692 # prefix `zar' qualifies iff:
6694 # * `zardir' is a variable.
6695 # * `zar_PRIMARY' is a variable.
6697 # As a side effect, it looks for misspellings. It is an error to have
6698 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6699 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6700 # of the same name (with "dir" appended) exists. For instance, if the
6701 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6702 # This is to provide a little extra flexibility in those cases which
6704 sub am_primary_prefixes ($$@)
6706 my ($primary, $can_dist, @prefixes) = @_;
6709 my %valid = map { $_ => 0 } @prefixes;
6710 $valid{'EXTRA'} = 0;
6711 foreach my $var (variables $primary)
6713 # Automake is allowed to define variables that look like primaries
6714 # but which aren't. E.g. INSTALL_sh_DATA.
6715 # Autoconf can also define variables like INSTALL_DATA, so
6716 # ignore all configure variables (at least those which are not
6717 # redefined in Makefile.am).
6718 # FIXME: We should make sure that these variables are not
6719 # conditionally defined (or else adjust the condition below).
6720 my $def = $var->def (TRUE);
6721 next if $def && $def->owner != VAR_MAKEFILE;
6723 my $varname = $var->name;
6725 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
6727 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6728 if ($dist ne '' && ! $can_dist)
6731 "invalid variable `$varname': `dist' is forbidden");
6733 # Standard directories must be explicitly allowed.
6734 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6737 "`${X}dir' is not a legitimate directory " .
6740 # A not explicitly valid directory is allowed if Xdir is defined.
6741 elsif (! defined $valid{$X} &&
6742 $var->requires_variables ("`$varname' is used", "${X}dir"))
6744 # Nothing to do. Any error message has been output
6745 # by $var->requires_variables.
6749 # Ensure all extended prefixes are actually used.
6750 $valid{"$base$dist$X"} = 1;
6755 prog_error "unexpected variable name: $varname";
6759 # Return only those which are actually defined.
6760 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6764 # Handle `where_HOW' variable magic. Does all lookups, generates
6765 # install code, and possibly generates code to define the primary
6766 # variable. The first argument is the name of the .am file to munge,
6767 # the second argument is the primary variable (e.g. HEADERS), and all
6768 # subsequent arguments are possible installation locations.
6770 # Returns list of [$location, $value] pairs, where
6771 # $value's are the values in all where_HOW variable, and $location
6772 # there associated location (the place here their parent variables were
6775 # FIXME: this should be rewritten to be cleaner. It should be broken
6776 # up into multiple functions.
6778 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6785 my $default_dist = 0;
6788 if ($args[0] eq '-noextra')
6792 elsif ($args[0] eq '-candist')
6796 elsif ($args[0] eq '-defaultdist')
6801 elsif ($args[0] !~ /^-/)
6808 my ($file, $primary, @prefix) = @args;
6810 # Now that configure substitutions are allowed in where_HOW
6811 # variables, it is an error to actually define the primary. We
6812 # allow `JAVA', as it is customarily used to mean the Java
6813 # interpreter. This is but one of several Java hacks. Similarly,
6814 # `PYTHON' is customarily used to mean the Python interpreter.
6815 reject_var $primary, "`$primary' is an anachronism"
6816 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6818 # Get the prefixes which are valid and actually used.
6819 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6821 # If a primary includes a configure substitution, then the EXTRA_
6822 # form is required. Otherwise we can't properly do our job.
6828 foreach my $X (@prefix)
6830 my $nodir_name = $X;
6831 my $one_name = $X . '_' . $primary;
6832 my $one_var = var $one_name;
6834 my $strip_subdir = 1;
6835 # If subdir prefix should be preserved, do so.
6836 if ($nodir_name =~ /^nobase_/)
6839 $nodir_name =~ s/^nobase_//;
6842 # If files should be distributed, do so.
6846 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6847 || (! $default_dist && $nodir_name =~ /^dist_/));
6848 $nodir_name =~ s/^(dist|nodist)_//;
6852 # Use the location of the currently processed variable.
6853 # We are not processing a particular condition, so pick the first
6855 my $tmpcond = $one_var->conditions->one_cond;
6856 my $where = $one_var->rdef ($tmpcond)->location->clone;
6858 # Append actual contents of where_PRIMARY variable to
6859 # @result, skipping @substitutions@.
6860 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6862 my ($loc, $value) = @$locvals;
6863 # Skip configure substitutions.
6864 if ($value =~ /^\@.*\@$/)
6866 if ($nodir_name eq 'EXTRA')
6869 "`$one_name' contains configure substitution, "
6872 # Check here to make sure variables defined in
6873 # configure.ac do not imply that EXTRA_PRIMARY
6875 elsif (! defined $configure_vars{$one_name})
6877 $require_extra = $one_name
6883 push (@result, $locvals);
6886 # A blatant hack: we rewrite each _PROGRAMS primary to include
6888 append_exeext { 1 } $one_name
6889 if $primary eq 'PROGRAMS';
6890 # "EXTRA" shouldn't be used when generating clean targets,
6891 # all, or install targets. We used to warn if EXTRA_FOO was
6892 # defined uselessly, but this was annoying.
6894 if $nodir_name eq 'EXTRA';
6896 if ($nodir_name eq 'check')
6898 push (@check, '$(' . $one_name . ')');
6902 push (@used, '$(' . $one_name . ')');
6905 # Is this to be installed?
6906 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6908 # If so, with install-exec? (or install-data?).
6909 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6911 my $check_options_p = $install_p && !! option 'std-options';
6913 # Use the location of the currently processed variable as context.
6914 $where->push_context ("while processing `$one_name'");
6916 # The variable containing all file to distribute.
6917 my $distvar = "\$($one_name)";
6918 $distvar = shadow_unconditionally ($one_name, $where)
6919 if ($dist_p && $one_var->has_conditional_contents);
6921 # Singular form of $PRIMARY.
6922 (my $one_primary = $primary) =~ s/S$//;
6923 $output_rules .= &file_contents ($file, $where,
6924 PRIMARY => $primary,
6925 ONE_PRIMARY => $one_primary,
6927 NDIR => $nodir_name,
6928 BASE => $strip_subdir,
6931 INSTALL => $install_p,
6933 DISTVAR => $distvar,
6934 'CK-OPTS' => $check_options_p);
6937 # The JAVA variable is used as the name of the Java interpreter.
6938 # The PYTHON variable is used as the name of the Python interpreter.
6939 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6942 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6943 $output_vars .= "\n";
6946 err_var ($require_extra,
6947 "`$require_extra' contains configure substitution,\n"
6948 . "but `EXTRA_$primary' not defined")
6949 if ($require_extra && ! var ('EXTRA_' . $primary));
6951 # Push here because PRIMARY might be configure time determined.
6952 push (@all, '$(' . $primary . ')')
6953 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6955 # Make the result unique. This lets the user use conditionals in
6956 # a natural way, but still lets us program lazily -- we don't have
6957 # to worry about handling a particular object more than once.
6958 # We will keep only one location per object.
6960 for my $pair (@result)
6962 my ($loc, $val) = @$pair;
6963 $result{$val} = $loc;
6965 my @l = sort keys %result;
6966 return map { [$result{$_}->clone, $_] } @l;
6970 ################################################################
6972 # Each key in this hash is the name of a directory holding a
6973 # Makefile.in. These variables are local to `is_make_dir'.
6975 my $make_dirs_set = 0;
6980 if (! $make_dirs_set)
6982 foreach my $iter (@configure_input_files)
6984 $make_dirs{dirname ($iter)} = 1;
6986 # We also want to notice Makefile.in's.
6987 foreach my $iter (@other_input_files)
6989 if ($iter =~ /Makefile\.in$/)
6991 $make_dirs{dirname ($iter)} = 1;
6996 return defined $make_dirs{$dir};
6999 ################################################################
7001 # Find the aux dir. This should match the algorithm used by
7002 # ./configure. (See the Autoconf documentation for for
7003 # AC_CONFIG_AUX_DIR.)
7004 sub locate_aux_dir ()
7006 if (! $config_aux_dir_set_in_configure_ac)
7008 # The default auxiliary directory is the first
7009 # of ., .., or ../.. that contains install-sh.
7010 # Assume . if install-sh doesn't exist yet.
7011 for my $dir (qw (. .. ../..))
7013 if (-f "$dir/install-sh")
7015 $config_aux_dir = $dir;
7019 $config_aux_dir = '.' unless $config_aux_dir;
7021 # Avoid unsightly '/.'s.
7022 $am_config_aux_dir =
7023 '$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
7024 $am_config_aux_dir =~ s,/*$,,;
7028 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
7029 # --------------------------------------------------
7030 # See if we want to push this file onto dist_common. This function
7031 # encodes the rules for deciding when to do so.
7032 sub maybe_push_required_file
7034 my ($dir, $file, $fullfile) = @_;
7036 if ($dir eq $relative_dir)
7038 push_dist_common ($file);
7041 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7043 # If we are doing the topmost directory, and the file is in a
7044 # subdir which does not have a Makefile, then we distribute it
7047 # If a required file is above the source tree, it is important
7048 # to prefix it with `$(srcdir)' so that no VPATH search is
7049 # performed. Otherwise problems occur with Make implementations
7050 # that rewrite and simplify rules whose dependencies are found in a
7051 # VPATH location. Here is an example with OSF1/Tru64 Make.
7063 # Dependency `../a' was found in `sub/../a', but this make
7064 # implementation simplified it as `a'. (Note that the sub/
7065 # directory does not even exist.)
7067 # This kind of VPATH rewriting seems hard to cancel. The
7068 # distdir.am hack against VPATH rewriting works only when no
7069 # simplification is done, i.e., for dependencies which are in
7070 # subdirectories, not in enclosing directories. Hence, in
7071 # the latter case we use a full path to make sure no VPATH
7073 $fullfile = '$(srcdir)/' . $fullfile
7074 if $dir =~ m,^\.\.(?:$|/),;
7076 push_dist_common ($fullfile);
7083 # If a file name appears as a key in this hash, then it has already
7084 # been checked for. This allows us not to report the same error more
7086 my %required_file_not_found = ();
7088 # &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
7089 # --------------------------------------------------------------
7090 # Verify that the file must exist in $DIRECTORY, or install it.
7091 # $MYSTRICT is the strictness level at which this file becomes required.
7092 sub require_file_internal ($$$@)
7094 my ($where, $mystrict, $dir, @files) = @_;
7096 foreach my $file (@files)
7098 my $fullfile = "$dir/$file";
7100 my $dangling_sym = 0;
7102 if (-l $fullfile && ! -f $fullfile)
7106 elsif (dir_has_case_matching_file ($dir, $file))
7109 maybe_push_required_file ($dir, $file, $fullfile);
7112 # `--force-missing' only has an effect if `--add-missing' is
7114 if ($found_it && (! $add_missing || ! $force_missing))
7120 # If we've already looked for it, we're done. You might
7121 # wonder why we don't do this before searching for the
7122 # file. If we do that, then something like
7123 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7127 next if defined $required_file_not_found{$fullfile};
7128 $required_file_not_found{$fullfile} = 1;
7131 if ($strictness >= $mystrict)
7133 if ($dangling_sym && $add_missing)
7141 # Only install missing files according to our desired
7143 my $message = "required file `$fullfile' not found";
7146 if (-f "$libdir/$file")
7150 # Install the missing file. Symlink if we
7151 # can, copy if we must. Note: delete the file
7152 # first, in case it is a dangling symlink.
7153 $message = "installing `$fullfile'";
7154 # Windows Perl will hang if we try to delete a
7155 # file that doesn't exist.
7156 unlink ($fullfile) if -f $fullfile;
7157 if ($symlink_exists && ! $copy_missing)
7159 if (! symlink ("$libdir/$file", $fullfile))
7162 $trailer = "; error while making link: $!";
7165 elsif (system ('cp', "$libdir/$file", $fullfile))
7168 $trailer = "\n error while copying";
7170 reset_dir_cache ($dir);
7173 if (! maybe_push_required_file (dirname ($fullfile),
7176 if (! $found_it && ! $automake_will_process_aux_dir)
7178 # We have added the file but could not push it
7179 # into DIST_COMMON, probably because this is
7180 # an auxiliary file and we are not processing
7181 # the top level Makefile. Furthermore Automake
7182 # hasn't been asked to create the Makefile.in
7183 # that distribute the aux dir files.
7184 error ($where, 'Please make a full run of automake'
7185 . " so $fullfile gets distributed.");
7191 $trailer = "\n `automake --add-missing' can install `$file'"
7192 if -f "$libdir/$file";
7195 # If --force-missing was specified, and we have
7196 # actually found the file, then do nothing.
7198 if $found_it && $force_missing;
7200 # If we couldn' install the file, but it is a target in
7201 # the Makefile, don't print anything. This allows files
7202 # like README, AUTHORS, or THANKS to be generated.
7204 if !$suppress && rule $file;
7206 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
7212 # &require_file ($WHERE, $MYSTRICT, @FILES)
7213 # -----------------------------------------
7214 sub require_file ($$@)
7216 my ($where, $mystrict, @files) = @_;
7217 require_file_internal ($where, $mystrict, $relative_dir, @files);
7220 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7221 # -----------------------------------------------------------
7222 sub require_file_with_macro ($$$@)
7224 my ($cond, $macro, $mystrict, @files) = @_;
7225 $macro = rvar ($macro) unless ref $macro;
7226 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7229 # &require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7230 # ----------------------------------------------------------------
7231 # Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
7232 # must be in that directory. Otherwise expect it in the current directory.
7233 sub require_libsource_with_macro ($$$@)
7235 my ($cond, $macro, $mystrict, @files) = @_;
7236 $macro = rvar ($macro) unless ref $macro;
7237 if ($config_libobj_dir)
7239 require_file_internal ($macro->rdef ($cond)->location, $mystrict,
7240 $config_libobj_dir, @files);
7244 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
7248 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
7249 # ----------------------------------------------
7250 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7251 sub require_conf_file ($$@)
7253 my ($where, $mystrict, @files) = @_;
7254 require_file_internal ($where, $mystrict, $config_aux_dir, @files);
7258 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
7259 # ----------------------------------------------------------------
7260 sub require_conf_file_with_macro ($$$@)
7262 my ($cond, $macro, $mystrict, @files) = @_;
7263 require_conf_file (rvar ($macro)->rdef ($cond)->location,
7267 ################################################################
7269 # &require_build_directory ($DIRECTORY)
7270 # ------------------------------------
7271 # Emit rules to create $DIRECTORY if needed, and return
7272 # the file that any target requiring this directory should be made
7274 # We don't want to emit the rule twice, and want to reuse it
7275 # for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
7276 sub require_build_directory ($)
7278 my $directory = shift;
7280 return $directory_map{$directory} if exists $directory_map{$directory};
7282 my $cdir = File::Spec->canonpath ($directory);
7284 if (exists $directory_map{$cdir})
7286 my $stamp = $directory_map{$cdir};
7287 $directory_map{$directory} = $stamp;
7291 my $dirstamp = "$cdir/\$(am__dirstamp)";
7293 $directory_map{$directory} = $dirstamp;
7294 $directory_map{$cdir} = $dirstamp;
7296 # Set a variable for the dirstamp basename.
7297 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
7298 '$(am__leading_dot)dirstamp');
7300 # Directory must be removed by `make distclean'.
7301 $clean_files{$dirstamp} = DIST_CLEAN;
7303 $output_rules .= ("$dirstamp:\n"
7304 . "\t\@\$(mkdir_p) $directory\n"
7305 . "\t\@: > $dirstamp\n");
7310 # &require_build_directory_maybe ($FILE)
7311 # --------------------------------------
7312 # If $FILE lies in a subdirectory, emit a rule to create this
7313 # directory and return the file that $FILE should be made
7314 # dependent upon. Otherwise, just return the empty string.
7315 sub require_build_directory_maybe ($)
7318 my $directory = dirname ($file);
7320 if ($directory ne '.')
7322 return require_build_directory ($directory);
7330 ################################################################
7332 # Push a list of files onto dist_common.
7333 sub push_dist_common
7335 prog_error "push_dist_common run after handle_dist"
7336 if $handle_dist_run;
7337 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
7338 '', INTERNAL, VAR_PRETTY);
7342 ################################################################
7344 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
7345 # ----------------------------------------------
7346 # Generate a Makefile.in given the name of the corresponding Makefile and
7347 # the name of the file output by config.status.
7348 sub generate_makefile ($$)
7350 my ($makefile_am, $makefile_in) = @_;
7352 # Reset all the Makefile.am related variables.
7353 initialize_per_input;
7355 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
7356 # warnings for this file. So hold any warning issued before
7357 # we have processed AUTOMAKE_OPTIONS.
7358 buffer_messages ('warning');
7360 # Name of input file ("Makefile.am") and output file
7361 # ("Makefile.in"). These have no directory components.
7362 $am_file_name = basename ($makefile_am);
7363 $in_file_name = basename ($makefile_in);
7365 # $OUTPUT is encoded. If it contains a ":" then the first element
7366 # is the real output file, and all remaining elements are input
7367 # files. We don't scan or otherwise deal with these input files,
7368 # other than to mark them as dependencies. See
7369 # &scan_autoconf_files for details.
7370 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
7372 $relative_dir = dirname ($makefile);
7373 $am_relative_dir = dirname ($makefile_am);
7374 $topsrcdir = backname ($relative_dir);
7376 read_main_am_file ($makefile_am);
7379 # Process buffered warnings.
7381 # Fatal error. Just return, so we can continue with next file.
7384 # Process buffered warnings.
7387 # There are a few install-related variables that you should not define.
7388 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
7393 my $def = $v->def (TRUE);
7394 prog_error "$var not defined in condition TRUE"
7396 reject_var $var, "`$var' should not be defined"
7397 if $def->owner != VAR_AUTOMAKE;
7401 # Catch some obsolete variables.
7402 msg_var ('obsolete', 'INCLUDES',
7403 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
7404 if var ('INCLUDES');
7406 # Must do this after reading .am file.
7407 define_variable ('subdir', $relative_dir, INTERNAL);
7409 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
7410 # recursive rules are enabled.
7411 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
7412 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
7414 # Check first, because we might modify some state.
7416 check_gnu_standards;
7417 check_gnits_standards;
7419 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
7426 # These must be run after all the sources are scanned. They
7427 # use variables defined by &handle_libraries, &handle_ltlibraries,
7428 # or &handle_programs.
7433 # Variables used by distdir.am and tags.am.
7434 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
7435 if (! option 'no-dist')
7437 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
7450 handle_minor_options;
7451 # Must come after handle_programs so that %known_programs is up-to-date.
7454 # This must come after most other rules.
7458 do_check_merge_target;
7459 handle_all ($makefile);
7462 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
7464 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
7468 handle_clean ($makefile);
7469 handle_factored_dependencies;
7471 # Comes last, because all the above procedures may have
7472 # defined or overridden variables.
7473 $output_vars .= output_variables;
7477 my ($out_file) = $output_directory . '/' . $makefile_in;
7479 if ($exit_code != 0)
7481 verb "not writing $out_file because of earlier errors";
7485 if (! -d ($output_directory . '/' . $am_relative_dir))
7487 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
7490 # We make sure that `all:' is the first target.
7492 "$output_vars$output_all$output_header$output_rules$output_trailer";
7494 # Decide whether we must update the output file or not.
7495 # We have to update in the following situations.
7496 # * $force_generation is set.
7497 # * any of the output dependencies is younger than the output
7498 # * the contents of the output is different (this can happen
7499 # if the project has been populated with a file listed in
7500 # @common_files since the last run).
7501 # Output's dependencies are split in two sets:
7502 # * dependencies which are also configure dependencies
7503 # These do not change between each Makefile.am
7504 # * other dependencies, specific to the Makefile.am being processed
7505 # (such as the Makefile.am itself, or any Makefile fragment
7507 my $timestamp = mtime $out_file;
7508 if (! $force_generation
7509 && $configure_deps_greatest_timestamp < $timestamp
7510 && $output_deps_greatest_timestamp < $timestamp
7511 && $output eq contents ($out_file))
7513 verb "$out_file unchanged";
7514 # No need to update.
7521 or fatal "cannot remove $out_file: $!\n";
7524 my $gm_file = new Automake::XFile "> $out_file";
7525 verb "creating $out_file";
7526 print $gm_file $output;
7529 ################################################################
7534 ################################################################
7536 # Print usage information.
7539 print "Usage: $0 [OPTION] ... [Makefile]...
7541 Generate Makefile.in for configure from Makefile.am.
7544 --help print this help, then exit
7545 --version print version number, then exit
7546 -v, --verbose verbosely list files processed
7547 --no-force only update Makefile.in's that are out of date
7548 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
7550 Dependency tracking:
7551 -i, --ignore-deps disable dependency tracking code
7552 --include-deps enable dependency tracking code
7555 --cygnus assume program is part of Cygnus-style tree
7556 --foreign set strictness to foreign
7557 --gnits set strictness to gnits
7558 --gnu set strictness to gnu
7561 -a, --add-missing add missing standard files to package
7562 --libdir=DIR directory storing library files
7563 -c, --copy with -a, copy missing files (default is symlink)
7564 -f, --force-missing force update of standard files
7567 Automake::ChannelDefs::usage;
7571 foreach my $iter (sort ((@common_files, @common_sometimes)))
7573 push (@lcomm, $iter) unless $iter eq $last;
7578 print "\nFiles which are automatically distributed, if found:\n";
7579 format USAGE_FORMAT =
7580 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
7581 $four[0], $four[1], $four[2], $four[3]
7583 $~ = "USAGE_FORMAT";
7586 my $rows = int(@lcomm / $cols);
7587 my $rest = @lcomm % $cols;
7598 for (my $y = 0; $y < $rows; $y++)
7600 @four = ("", "", "", "");
7601 for (my $x = 0; $x < $cols; $x++)
7603 last if $y + 1 == $rows && $x == $rest;
7605 my $idx = (($x > $rest)
7606 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
7610 $four[$x] = $lcomm[$idx];
7615 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
7617 # --help always returns 0 per GNU standards.
7624 # Print version information
7628 automake (GNU $PACKAGE) $VERSION
7629 Written by Tom Tromey <tromey\@redhat.com>
7630 and Alexandre Duret-Lutz <adl\@gnu.org>.
7632 Copyright 2006 Free Software Foundation, Inc.
7633 This is free software; see the source for copying conditions. There is NO
7634 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7636 # --version always returns 0 per GNU standards.
7640 ################################################################
7642 # Parse command line.
7643 sub parse_arguments ()
7646 set_strictness ('gnu');
7648 my $cli_where = new Automake::Location;
7651 'libdir=s' => \$libdir,
7652 'gnu' => sub { set_strictness ('gnu'); },
7653 'gnits' => sub { set_strictness ('gnits'); },
7654 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7655 'foreign' => sub { set_strictness ('foreign'); },
7656 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7657 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7659 'no-force' => sub { $force_generation = 0; },
7660 'f|force-missing' => \$force_missing,
7661 'o|output-dir=s' => \$output_directory,
7662 'a|add-missing' => \$add_missing,
7663 'c|copy' => \$copy_missing,
7664 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7665 'W|warnings=s' => \&parse_warnings,
7666 # These long options (--Werror and --Wno-error) for backward
7667 # compatibility. Use -Werror and -Wno-error today.
7668 'Werror' => sub { parse_warnings 'W', 'error'; },
7669 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7672 Getopt::Long::config ("bundling", "pass_through");
7674 # See if --version or --help is used. We want to process these before
7675 # anything else because the GNU Coding Standards require us to
7676 # `exit 0' after processing these options, and we can't guarantee this
7677 # if we treat other options first. (Handling other options first
7678 # could produce error diagnostics, and in this condition it is
7679 # confusing if Automake does `exit 0'.)
7680 my %cli_options_1st_pass =
7682 'version' => \&version,
7684 # Recognize all other options (and their arguments) but do nothing.
7685 map { $_ => sub {} } (keys %cli_options)
7687 my @ARGV_backup = @ARGV;
7688 Getopt::Long::GetOptions %cli_options_1st_pass
7690 @ARGV = @ARGV_backup;
7692 # Now *really* process the options. This time we know that --help
7693 # and --version are not present, but we specify them nonetheless so
7694 # that ambiguous abbreviation are diagnosed.
7695 Getopt::Long::GetOptions %cli_options, 'version' => sub {}, 'help' => sub {}
7698 if (defined $output_directory)
7700 msg 'obsolete', "`--output-dir' is deprecated\n";
7704 # In the next release we'll remove this entirely.
7705 $output_directory = '.';
7708 return unless @ARGV;
7710 if ($ARGV[0] =~ /^-./)
7713 for my $k (keys %cli_options)
7715 if ($k =~ /(.*)=s$/)
7717 map { $argopts{(length ($_) == 1)
7718 ? "-$_" : "--$_" } = 1; } (split (/\|/, $1));
7721 if ($ARGV[0] eq '--')
7725 elsif (exists $argopts{$ARGV[0]})
7727 fatal ("option `$ARGV[0]' requires an argument\n"
7728 . "Try `$0 --help' for more information.");
7732 fatal ("unrecognized option `$ARGV[0]'.\n"
7733 . "Try `$0 --help' for more information.");
7738 foreach my $arg (@ARGV)
7740 fatal ("empty argument\nTry `$0 --help' for more information.")
7743 # Handle $local:$input syntax.
7744 my ($local, @rest) = split (/:/, $arg);
7745 @rest = ("$local.in",) unless @rest;
7746 my $input = locate_am @rest;
7749 push @input_files, $input;
7750 $output_files{$input} = join (':', ($local, @rest));
7754 error "no Automake input file found for `$arg'";
7758 fatal "no input file found among supplied arguments"
7759 if $errspec && ! @input_files;
7762 ################################################################
7764 # Parse the WARNINGS environment variable.
7767 # Parse command line.
7770 $configure_ac = require_configure_ac;
7772 # Do configure.ac scan only once.
7773 scan_autoconf_files;
7778 $msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
7779 if -f 'Makefile.am';
7780 fatal ("no `Makefile.am' found for any configure output$msg");
7783 # Now do all the work on each file.
7784 foreach my $file (@input_files)
7786 ($am_file = $file) =~ s/\.in$//;
7787 if (! -f ($am_file . '.am'))
7789 error "`$am_file.am' does not exist";
7793 # Any warning setting now local to this Makefile.am.
7796 generate_makefile ($am_file . '.am', $file);
7798 # Back out any warning setting.
7806 ### Setup "GNU" style for perl-mode and cperl-mode.
7808 ## perl-indent-level: 2
7809 ## perl-continued-statement-offset: 2
7810 ## perl-continued-brace-offset: 0
7811 ## perl-brace-offset: 0
7812 ## perl-brace-imaginary-offset: 0
7813 ## perl-label-offset: -2
7814 ## cperl-indent-level: 2
7815 ## cperl-brace-offset: 0
7816 ## cperl-continued-brace-offset: 0
7817 ## cperl-label-offset: -2
7818 ## cperl-extra-newline-before-brace: t
7819 ## cperl-merge-trailing-else: nil
7820 ## cperl-continued-statement-offset: 2