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, 2003
10 # Free Software Foundation, Inc.
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License as published by
14 # the Free Software Foundation; either version 2, or (at your option)
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program; if not, write to the Free Software
24 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27 # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
28 # Perl reimplementation by Tom Tromey <tromey@redhat.com>.
34 my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
35 unshift @INC, (split ':', $perllibdir);
37 # Override SHELL. This is required on DJGPP so that system() uses
38 # bash, not COMMAND.COM which doesn't quote arguments properly.
39 # Other systems aren't expected to use $SHELL when Automake
40 # runs, but it should be safe to drop the `if DJGPP' guard if
41 # it turns up other systems need the same thing. After all,
42 # if SHELL is used, ./configure's SHELL is always better than
43 # the user's SHELL (which may be something like tcsh).
44 $ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJGPP'};
48 struct (# Short name of the language (c, f77...).
50 # Nice name of the language (C, Fortran 77...).
53 # List of configure variables which must be defined.
57 # `pure' is `1' or `'. A `pure' language is one where, if
58 # all the files in a directory are of that language, then we
59 # do not require the C compiler or any code to call it.
64 # Name of the compiling variable (COMPILE).
66 # Content of the compiling variable.
68 # Flag to require compilation without linking (-c).
69 'compile_flag' => "\$",
71 # A subroutine to compute a list of possible extensions of
72 # the product given the input extensions.
73 # (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
74 'output_extensions' => "\$",
75 # A list of flag variables used in 'compile'.
79 # The file to use when generating rules for this language.
80 # The default is 'depend2'.
83 # Name of the linking variable (LINK).
85 # Content of the linking variable.
88 # Name of the linker variable (LD).
90 # Content of the linker variable ($(CC)).
93 # Flag to specify the output file (-o).
94 'output_flag' => "\$",
97 # This is a subroutine which is called whenever we finally
98 # determine the context in which a source file will be
100 '_target_hook' => "\$");
106 if (defined $self->_finish)
108 &{$self->_finish} ();
112 sub target_hook ($$$$)
115 if (defined $self->_target_hook)
117 &{$self->_target_hook} (@_);
124 use Automake::Config;
125 use Automake::General;
127 use Automake::Channels;
128 use Automake::ChannelDefs;
129 use Automake::Configure_ac;
130 use Automake::FileUtils;
131 use Automake::Location;
132 use Automake::Condition qw/TRUE FALSE/;
133 use Automake::DisjConditions;
134 use Automake::Options;
135 use Automake::Version;
136 use Automake::Variable;
137 use Automake::VarDef;
139 use Automake::RuleDef;
140 use Automake::Wrap 'makefile_wrap';
148 # Some regular expressions. One reason to put them here is that it
149 # makes indentation work better in Emacs.
151 # Writing singled-quoted-$-terminated regexes is a pain because
152 # perl-mode thinks of $' as the ${'} variable (instead of a $ followed
153 # by a closing quote. Letting perl-mode think the quote is not closed
154 # leads to all sort of misindentations. On the other hand, defining
155 # regexes as double-quoted strings is far less readable. So usually
158 # $REGEX = '^regex_value' . "\$";
160 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
161 my $WHITE_PATTERN = '^\s*' . "\$";
162 my $COMMENT_PATTERN = '^#';
163 my $TARGET_PATTERN='[$a-zA-Z_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
164 # A rule has three parts: a list of targets, a list of dependencies,
165 # and optionally actions.
167 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
169 # Only recognize leading spaces, not leading tabs. If we recognize
170 # leading tabs here then we need to make the reader smarter, because
171 # otherwise it will think rules like `foo=bar; \' are errors.
172 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
173 # This pattern recognizes a Gnits version id and sets $1 if the
174 # release is an alpha release. We also allow a suffix which can be
175 # used to extend the version number with a "fork" identifier.
176 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
178 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
180 '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
182 '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
183 my $PATH_PATTERN = '(\w|[/.-])+';
184 # This will pass through anything not of the prescribed form.
185 my $INCLUDE_PATTERN = ('^include\s+'
186 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
187 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
188 . '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
190 # Match `-d' as a command-line argument in a string.
191 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
192 # Directories installed during 'install-exec' phase.
193 my $EXEC_DIR_PATTERN =
194 '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
196 # Values for AC_CANONICAL_*
197 use constant AC_CANONICAL_HOST => 1;
198 use constant AC_CANONICAL_SYSTEM => 2;
200 # Values indicating when something should be cleaned.
201 use constant MOSTLY_CLEAN => 0;
202 use constant CLEAN => 1;
203 use constant DIST_CLEAN => 2;
204 use constant MAINTAINER_CLEAN => 3;
207 my @libtool_files = qw(ltmain.sh config.guess config.sub);
208 # ltconfig appears here for compatibility with old versions of libtool.
209 my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
211 # Commonly found files we look for and automatically include in
214 (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
215 COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
216 ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
217 configure configure.ac configure.in depcomp elisp-comp
218 install-sh libversion.in mdate-sh missing mkinstalldirs
219 py-compile texinfo.tex ylwrap),
220 @libtool_files, @libtool_sometimes);
222 # Commonly used files we auto-include, but only sometimes.
223 my @common_sometimes =
224 qw(aclocal.m4 acconfig.h config.h.top config.h.bot stamp-vti);
226 # Standard directories from the GNU Coding Standards, and additional
227 # pkg* directories from Automake. Stored in a hash for fast member check.
228 my %standard_prefix =
229 map { $_ => 1 } (qw(bin data exec include info lib libexec lisp
230 localstate man man1 man2 man3 man4 man5 man6
231 man7 man8 man9 oldinclude pkgdatadir
232 pkgincludedir pkglibdir sbin sharedstate
235 # Copyright on generated Makefile.ins.
236 my $gen_copyright = "\
237 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
238 # Free Software Foundation, Inc.
239 # This Makefile.in is free software; the Free Software Foundation
240 # gives unlimited permission to copy and/or distribute it,
241 # with or without modifications, as long as this notice is preserved.
243 # This program is distributed in the hope that it will be useful,
244 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
245 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
246 # PARTICULAR PURPOSE.
249 # These constants are returned by lang_*_rewrite functions.
250 # LANG_SUBDIR means that the resulting object file should be in a
251 # subdir if the source file is. In this case the file name cannot
252 # have `..' components.
253 use constant LANG_IGNORE => 0;
254 use constant LANG_PROCESS => 1;
255 use constant LANG_SUBDIR => 2;
257 # These are used when keeping track of whether an object can be built
258 # by two different paths.
259 use constant COMPILE_LIBTOOL => 1;
260 use constant COMPILE_ORDINARY => 2;
262 # We can't always associate a location to a variable or a rule,
263 # when its defined by Automake. We use INTERNAL in this case.
264 use constant INTERNAL => new Automake::Location;
267 ## ---------------------------------- ##
268 ## Variables related to the options. ##
269 ## ---------------------------------- ##
271 # TRUE if we should always generate Makefile.in.
272 my $force_generation = 1;
274 # From the Perl manual.
275 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
277 # TRUE if missing standard files should be installed.
280 # TRUE if we should copy missing files; otherwise symlink if possible.
281 my $copy_missing = 0;
283 # TRUE if we should always update files that we know about.
284 my $force_missing = 0;
287 ## ---------------------------------------- ##
288 ## Variables filled during files scanning. ##
289 ## ---------------------------------------- ##
291 # Name of the configure.ac file.
294 # Files found by scanning configure.ac for LIBOBJS.
297 # Names used in AC_CONFIG_HEADER call.
298 my @config_headers = ();
299 # Where AC_CONFIG_HEADER appears.
300 my $config_header_location;
302 # Names used in AC_CONFIG_LINKS call.
303 my @config_links = ();
305 # Directory where output files go. Actually, output files are
306 # relative to this directory.
307 my $output_directory;
309 # List of Makefile.am's to process, and their corresponding outputs.
310 my @input_files = ();
311 my %output_files = ();
313 # Complete list of Makefile.am's that exist.
314 my @configure_input_files = ();
316 # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
318 my @other_input_files = ();
319 # Where the last AC_CONFIG_FILES/AC_OUTPUT appears.
320 my %ac_config_files_location = ();
322 # List of directories to search for configure-required files. This
323 # can be set by AC_CONFIG_AUX_DIR.
324 my @config_aux_path = qw(. .. ../..);
325 my $config_aux_dir = '';
326 my $config_aux_dir_set_in_configure_in = 0;
328 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
329 my $seen_gettext = 0;
330 # Whether AM_GNU_GETTEXT([external]) is used.
331 my $seen_gettext_external = 0;
332 # Where AM_GNU_GETTEXT appears.
333 my $ac_gettext_location;
335 # TRUE if we've seen AC_CANONICAL_(HOST|SYSTEM).
336 my $seen_canonical = 0;
337 my $canonical_location;
339 # Where AM_MAINTAINER_MODE appears.
342 # Actual version we've seen.
343 my $package_version = '';
345 # Where version is defined.
346 my $package_version_location;
348 # TRUE if we've seen AC_ENABLE_MULTILIB.
349 my $seen_multilib = 0;
351 # TRUE if we've seen AM_PROG_CC_C_O
354 # Where AM_INIT_AUTOMAKE is called;
355 my $seen_init_automake = 0;
357 # TRUE if we've seen AM_AUTOMAKE_VERSION.
358 my $seen_automake_version = 0;
360 # Hash table of discovered configure substitutions. Keys are names,
361 # values are `FILE:LINE' strings which are used by error message
363 my %configure_vars = ();
365 # Files included by $configure_ac.
366 my @configure_deps = ();
368 # Greatest timestamp of configure's dependencies.
369 my $configure_deps_greatest_timestamp = 0;
371 # Hash table of AM_CONDITIONAL variables seen in configure.
372 my %configure_cond = ();
374 # This maps extensions onto language names.
375 my %extension_map = ();
377 # List of the DIST_COMMON files we discovered while reading
379 my $configure_dist_common = '';
381 # This maps languages names onto objects.
384 # List of targets we must always output.
385 # FIXME: Complete, and remove falsely required targets.
386 my %required_targets =
399 # FIXME: Not required, temporary hacks.
400 # Well, actually they are sort of required: the -recursive
401 # targets will run them anyway...
406 'install-data-am' => 1,
407 'install-exec-am' => 1,
408 'installcheck-am' => 1,
414 # This is set to 1 when Automake needs to be run again.
415 # (For instance, this happens when an auxiliary file such as
416 # depcomp is added after the toplevel Makefile.in -- which
417 # should distribute depcomp -- has been generated.)
418 my $automake_needs_to_reprocess_all_files = 0;
420 # If a file name appears as a key in this hash, then it has already
421 # been checked for. This variable is local to the "require file"
423 my %require_file_found = ();
425 # The name of the Makefile currently being processed.
429 ################################################################
431 ## ------------------------------------------ ##
432 ## Variables reset by &initialize_per_input. ##
433 ## ------------------------------------------ ##
435 # Basename and relative dir of the input file.
439 # Same but wrt Makefile.in.
443 # Greatest timestamp of the output's dependencies (excluding
444 # configure's dependencies).
445 my $output_deps_greatest_timestamp;
447 # These two variables are used when generating each Makefile.in.
448 # They hold the Makefile.in until it is ready to be printed.
455 # This is the conditional stack, updated on if/else/endif, and
456 # used to build Condition objects.
459 # This holds the set of included files.
462 # This holds a list of directories which we must create at `dist'
463 # time. This is used in some strange scenarios involving weird
464 # AC_OUTPUT commands.
467 # List of dependencies for the obvious targets.
472 # Keys in this hash table are files to delete. The associated
473 # value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
476 # Keys in this hash table are object files or other files in
477 # subdirectories which need to be removed. This only holds files
478 # which are created by compilations. The value in the hash indicates
479 # when the file should be removed.
480 my %compile_clean_files;
482 # Keys in this hash table are directories where we expect to build a
483 # libtool object. We use this information to decide what directories
485 my %libtool_clean_directories;
487 # Value of `$(SOURCES)', used by tags.am.
489 # Sources which go in the distribution.
492 # This hash maps object file names onto their corresponding source
493 # file names. This is used to ensure that each object is created
494 # by a single source file.
497 # This hash maps object file names onto an integer value representing
498 # whether this object has been built via ordinary compilation or
499 # libtool compilation (the COMPILE_* constants).
500 my %object_compilation_map;
503 # This keeps track of the directories for which we've already
504 # created dirstamp code.
510 # This is a list of all targets to run during "make dist".
513 # Keys in this hash are the basenames of files which must depend on
514 # ansi2knr. Values are either the empty string, or the directory in
515 # which the ANSI source file appears; the directory must have a
519 # This is the name of the redirect `all' target to use.
522 # This keeps track of which extensions we've seen (that we care
526 # This is random scratch space for the language finish functions.
527 # Don't randomly overwrite it; examine other uses of keys first.
528 my %language_scratch;
530 # We keep track of which objects need special (per-executable)
531 # handling on a per-language basis.
532 my %lang_specific_files;
534 # This is set when `handle_dist' has finished. Once this happens,
535 # we should no longer push on dist_common.
538 # Used to store a set of linkers needed to generate the sources currently
539 # under consideration.
542 # True if we need `LINK' defined. This is a hack.
545 # Was get_object_extension run?
546 # FIXME: This is a hack. a better switch should be found.
547 my $get_object_extension_was_run;
549 ################################################################
551 # var_SUFFIXES_trigger ($TYPE, $VALUE)
552 # ------------------------------------
553 # This is called by Automake::Variable::define() when SUFFIXES
554 # is defined ($TYPE eq '') or appended ($TYPE eq '+').
555 # The work here needs to be performed as a side-effect of the
556 # macro_define() call because SUFFIXES definitions impact
557 # on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
559 sub var_SUFFIXES_trigger ($$)
561 my ($type, $value) = @_;
562 accept_extensions (split (' ', $value));
564 Automake::Variable::hook ('SUFFIXES', &var_SUFFIXES_trigger);
566 ################################################################
568 ## --------------------------------- ##
569 ## Forward subroutine declarations. ##
570 ## --------------------------------- ##
571 sub register_language (%);
572 sub file_contents_internal ($$$%);
573 sub define_files_variable ($\@$$);
576 # &initialize_per_input ()
577 # ------------------------
578 # (Re)-Initialize per-Makefile.am variables.
579 sub initialize_per_input ()
581 reset_local_duplicates ();
584 $am_relative_dir = '';
589 $output_deps_greatest_timestamp = 0;
593 $output_trailer = '';
597 Automake::Options::reset;
598 Automake::Variable::reset;
599 Automake::Rule::reset;
617 %object_compilation_map = ();
629 %extension_seen = ();
631 %language_scratch = ();
633 %lang_specific_files = ();
635 $handle_dist_run = 0;
639 $get_object_extension_was_run = 0;
641 %compile_clean_files = ();
643 # We always include `.'. This isn't strictly correct.
644 %libtool_clean_directories = ('.' => 1);
648 ################################################################
650 # Initialize our list of languages that are internally supported.
653 register_language ('name' => 'c',
655 'config_vars' => ['CC'],
658 'flags' => ['CFLAGS', 'CPPFLAGS'],
659 'compiler' => 'COMPILE',
660 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
664 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
665 'compile_flag' => '-c',
666 'extensions' => ['.c'],
667 '_finish' => \&lang_c_finish);
670 register_language ('name' => 'cxx',
672 'config_vars' => ['CXX'],
673 'linker' => 'CXXLINK',
674 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
676 'flags' => ['CXXFLAGS', 'CPPFLAGS'],
677 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
678 'compiler' => 'CXXCOMPILE',
679 'compile_flag' => '-c',
680 'output_flag' => '-o',
684 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
687 register_language ('name' => 'objc',
688 'Name' => 'Objective C',
689 'config_vars' => ['OBJC'],
690 'linker' => 'OBJCLINK',,
691 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
693 'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
694 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
695 'compiler' => 'OBJCCOMPILE',
696 'compile_flag' => '-c',
697 'output_flag' => '-o',
701 'extensions' => ['.m']);
704 register_language ('name' => 'header',
706 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
709 'output_extensions' => sub { return () },
711 '_finish' => sub { });
714 register_language ('name' => 'yacc',
716 'config_vars' => ['YACC'],
717 'flags' => ['YFLAGS'],
718 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
719 'compiler' => 'YACCCOMPILE',
720 'extensions' => ['.y'],
721 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
723 'rule_file' => 'yacc',
724 '_finish' => \&lang_yacc_finish,
725 '_target_hook' => \&lang_yacc_target_hook);
726 register_language ('name' => 'yaccxx',
727 'Name' => 'Yacc (C++)',
728 'config_vars' => ['YACC'],
729 'rule_file' => 'yacc',
730 'flags' => ['YFLAGS'],
731 'compiler' => 'YACCCOMPILE',
732 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
733 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
734 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
736 '_finish' => \&lang_yacc_finish,
737 '_target_hook' => \&lang_yacc_target_hook);
740 register_language ('name' => 'lex',
742 'config_vars' => ['LEX'],
743 'rule_file' => 'lex',
744 'flags' => ['LFLAGS'],
745 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
746 'compiler' => 'LEXCOMPILE',
747 'extensions' => ['.l'],
748 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
750 '_finish' => \&lang_lex_finish,
751 '_target_hook' => \&lang_lex_target_hook);
752 register_language ('name' => 'lexxx',
753 'Name' => 'Lex (C++)',
754 'config_vars' => ['LEX'],
755 'rule_file' => 'lex',
756 'flags' => ['LFLAGS'],
757 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
758 'compiler' => 'LEXCOMPILE',
759 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
760 'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
762 '_finish' => \&lang_lex_finish,
763 '_target_hook' => \&lang_lex_target_hook);
766 register_language ('name' => 'asm',
767 'Name' => 'Assembler',
768 'config_vars' => ['CCAS', 'CCASFLAGS'],
770 'flags' => ['CCASFLAGS'],
771 # Users can set AM_ASFLAGS to includes DEFS, INCLUDES,
772 # or anything else required. They can also set AS.
773 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
774 'compiler' => 'CCASCOMPILE',
775 'compile_flag' => '-c',
776 'extensions' => ['.s', '.S'],
778 # With assembly we still use the C linker.
779 '_finish' => \&lang_c_finish);
782 register_language ('name' => 'f77',
783 'Name' => 'Fortran 77',
784 'linker' => 'F77LINK',
785 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
786 'flags' => ['FFLAGS'],
787 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
788 'compiler' => 'F77COMPILE',
789 'compile_flag' => '-c',
790 'output_flag' => '-o',
794 'extensions' => ['.f', '.for', '.f90']);
796 # Preprocessed Fortran 77
798 # The current support for preprocessing Fortran 77 just involves
799 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
800 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
801 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
802 # for `make' Version 3.76 Beta' (specifically, from info file
803 # `(make)Catalogue of Rules').
805 # A better approach would be to write an Autoconf test
806 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
807 # Fortran 77 compilers know how to do preprocessing. The Autoconf
808 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
809 # preprocessing capabilities, and then fall back on cpp (if cpp were
811 register_language ('name' => 'ppf77',
812 'Name' => 'Preprocessed Fortran 77',
813 'config_vars' => ['F77'],
814 'linker' => 'F77LINK',
815 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
818 'flags' => ['FFLAGS', 'CPPFLAGS'],
819 'compiler' => 'PPF77COMPILE',
820 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
821 'compile_flag' => '-c',
822 'output_flag' => '-o',
824 'extensions' => ['.F']);
827 register_language ('name' => 'ratfor',
829 'config_vars' => ['F77'],
830 'linker' => 'F77LINK',
831 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
834 'flags' => ['RFLAGS', 'FFLAGS'],
836 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
837 'compiler' => 'RCOMPILE',
838 'compile_flag' => '-c',
839 'output_flag' => '-o',
841 'extensions' => ['.r']);
844 register_language ('name' => 'java',
846 'config_vars' => ['GCJ'],
847 'linker' => 'GCJLINK',
848 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
850 'flags' => ['GCJFLAGS'],
851 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
852 'compiler' => 'GCJCOMPILE',
853 'compile_flag' => '-c',
854 'output_flag' => '-o',
858 'extensions' => ['.java', '.class', '.zip', '.jar']);
860 ################################################################
862 # Error reporting functions.
864 # err_am ($MESSAGE, [%OPTIONS])
865 # -----------------------------
866 # Uncategorized errors about the current Makefile.am.
869 msg_am ('error', @_);
872 # err_ac ($MESSAGE, [%OPTIONS])
873 # -----------------------------
874 # Uncategorized errors about configure.ac.
877 msg_ac ('error', @_);
880 # msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
881 # ---------------------------------------
882 # Messages about about the current Makefile.am.
885 my ($channel, $msg, %opts) = @_;
886 msg $channel, "${am_file}.am", $msg, %opts;
889 # msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
890 # ---------------------------------------
891 # Messages about about configure.ac.
894 my ($channel, $msg, %opts) = @_;
895 msg $channel, $configure_ac, $msg, %opts;
898 ################################################################
902 # Return a configure-style substitution using the indicated text.
903 # We do this to avoid having the substitutions directly in automake.in;
904 # when we do that they are sometimes removed and this causes confusion
909 return '@' . $text . '@';
912 ################################################################
916 # &backname ($REL-DIR)
917 # --------------------
918 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
919 # For instance `src/foo' => `../..'.
920 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
925 foreach (split (/\//, $file))
927 next if $_ eq '.' || $_ eq '';
937 return join ('/', @res) || '.';
940 ################################################################
943 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
946 my $var = var ('AUTOMAKE_OPTIONS');
949 # FIXME: We should disallow conditional definitions of AUTOMAKE_OPTIONS.
950 if (process_option_list ($var->rdef (TRUE)->location,
951 $var->value_as_list_recursive (cond_filter =>
958 if ($strictness == GNITS)
960 set_option ('readme-alpha', INTERNAL);
961 set_option ('std-options', INTERNAL);
962 set_option ('check-news', INTERNAL);
969 # get_object_extension ($OUT)
970 # ---------------------------
971 # Return object extension. Just once, put some code into the output.
972 # OUT is the name of the output file
973 sub get_object_extension
977 # Maybe require libtool library object files.
978 my $extension = '.$(OBJEXT)';
979 $extension = '.lo' if ($out =~ /\.la$/);
981 # Check for automatic de-ANSI-fication.
982 $extension = '$U' . $extension
983 if option 'ansi2knr';
985 $get_object_extension_was_run = 1;
991 # Call finish function for each language that was used.
994 if (! option 'no-dependencies')
996 # Include auto-dep code. Don't include it if DEP_FILES would
998 if (&saw_sources_p (0) && keys %dep_files)
1000 # Set location of depcomp.
1001 &define_variable ('depcomp', "\$(SHELL) $config_aux_dir/depcomp",
1003 &define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
1005 require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
1007 my @deplist = sort keys %dep_files;
1009 # We define this as a conditional variable because BSD
1010 # make can't handle backslashes for continuing comments on
1011 # the following line.
1012 define_pretty_variable ('DEP_FILES',
1013 new Automake::Condition ('AMDEP_TRUE'),
1014 INTERNAL, @deplist);
1016 # Generate each `include' individually. Irix 6 make will
1017 # not properly include several files resulting from a
1018 # variable expansion; generating many separate includes
1020 $output_rules .= "\n";
1021 foreach my $iter (@deplist)
1023 $output_rules .= (subst ('AMDEP_TRUE')
1024 . subst ('am__include')
1026 . subst ('am__quote')
1028 . subst ('am__quote')
1032 # Compute the set of directories to remove in distclean-depend.
1033 my @depdirs = uniq (map { dirname ($_) } @deplist);
1034 $output_rules .= &file_contents ('depend',
1035 new Automake::Location,
1036 DEPDIRS => "@depdirs");
1041 &define_variable ('depcomp', '', INTERNAL);
1042 &define_variable ('am__depfiles_maybe', '', INTERNAL);
1047 # Is the c linker needed?
1049 foreach my $ext (sort keys %extension_seen)
1051 next unless $extension_map{$ext};
1053 my $lang = $languages{$extension_map{$ext}};
1055 my $rule_file = $lang->rule_file || 'depend2';
1057 # Get information on $LANG.
1058 my $pfx = $lang->autodep;
1059 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1061 my ($AMDEP, $FASTDEP) =
1062 (option 'no-dependencies' || $lang->autodep eq 'no')
1063 ? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
1065 my %transform = ('EXT' => $ext,
1069 'FASTDEP' => $FASTDEP,
1070 '-c' => $lang->compile_flag || '',
1072 => (count_files_for_language ($lang->name) > 1));
1074 # Generate the appropriate rules for this extension.
1075 if (((! option 'no-dependencies') && $lang->autodep ne 'no')
1076 || defined $lang->compile)
1078 # Some C compilers don't support -c -o. Use it only if really
1080 my $output_flag = $lang->output_flag || '';
1083 && $lang->name eq 'c'
1084 && option 'subdir-objects');
1086 # Compute a possible derived extension.
1087 # This is not used by depend2.am.
1088 my $der_ext = (&{$lang->output_extensions} ($ext))[0];
1091 file_contents ($rule_file,
1092 new Automake::Location,
1096 'DERIVED-EXT' => $der_ext,
1098 # In this situation we know that the
1099 # object is in this directory, so
1100 # $(DEPDIR) is the correct location for
1102 DEPBASE => '$(DEPDIR)/$*',
1109 COMPILE => '$(' . $lang->compiler . ')',
1110 LTCOMPILE => '$(LT' . $lang->compiler . ')',
1111 -o => $output_flag);
1114 # Now include code for each specially handled object with this
1116 my %seen_files = ();
1117 foreach my $file (@{$lang_specific_files{$lang->name}})
1119 my ($derived, $source, $obj, $myext) = split (' ', $file);
1121 # We might see a given object twice, for instance if it is
1122 # used under different conditions.
1123 next if defined $seen_files{$obj};
1124 $seen_files{$obj} = 1;
1126 prog_error ("found " . $lang->name .
1127 " in handle_languages, but compiler not defined")
1128 unless defined $lang->compile;
1130 my $obj_compile = $lang->compile;
1132 # Rewrite each occurrence of `AM_$flag' in the compile
1133 # rule into `${derived}_$flag' if it exists.
1134 for my $flag (@{$lang->flags})
1136 my $val = "${derived}_$flag";
1137 $obj_compile =~ s/\(AM_$flag\)/\($val\)/
1141 my $obj_ltcompile = '$(LIBTOOL) --mode=compile ' . $obj_compile;
1143 # We _need_ `-o' for per object rules.
1144 my $output_flag = $lang->output_flag || '-o';
1146 my $depbase = dirname ($obj);
1150 unless $depbase eq '';
1151 $depbase .= '$(DEPDIR)/' . basename ($obj);
1153 # Support for deansified files in subdirectories is ugly
1154 # enough to deserve an explanation.
1156 # A Note about normal ansi2knr processing first. On
1158 # AUTOMAKE_OPTIONS = ansi2knr
1159 # bin_PROGRAMS = foo
1160 # foo_SOURCES = foo.c
1162 # we generate rules similar to:
1164 # foo: foo$U.o; link ...
1165 # foo$U.o: foo$U.c; compile ...
1166 # foo_.c: foo.c; ansi2knr ...
1168 # this is fairly compact, and will call ansi2knr depending
1169 # on the value of $U (`' or `_').
1171 # It's harder with subdir sources. On
1173 # AUTOMAKE_OPTIONS = ansi2knr
1174 # bin_PROGRAMS = foo
1175 # foo_SOURCES = sub/foo.c
1177 # we have to create foo_.c in the current directory.
1178 # (Unless the user asks 'subdir-objects'.) This is important
1179 # in case the same file (`foo.c') is compiled from other
1180 # directories with different cpp options: foo_.c would
1181 # be preprocessed for only one set of options if it were
1182 # put in the subdirectory.
1184 # Because foo$U.o must be built from either foo_.c or
1185 # sub/foo.c we can't be as concise as in the first example.
1188 # foo: foo$U.o; link ...
1189 # foo_.o: foo_.c; compile ...
1190 # foo.o: sub/foo.c; compile ...
1191 # foo_.c: foo.c; ansi2knr ...
1193 # This is why we'll now transform $rule_file twice
1194 # if we detect this case.
1195 # A first time we output the compile rule with `$U'
1196 # replaced by `_' and the source directory removed,
1197 # and another time we simply remove `$U'.
1199 # Note that at this point $source (as computed by
1200 # &handle_single_transform_list) is `sub/foo$U.c'.
1201 # This can be confusing: it can be used as-is when
1202 # subdir-objects is set, otherwise you have to know
1203 # it really means `foo_.c' or `sub/foo.c'.
1204 my $objdir = dirname ($obj);
1205 my $srcdir = dirname ($source);
1206 if ($lang->ansi && $obj =~ /\$U/)
1208 prog_error "`$obj' contains \$U, but `$source' doesn't."
1209 if $source !~ /\$U/;
1211 (my $source_ = $source) =~ s/\$U/_/g;
1212 # Explicitly clean the _.c files if they are in
1213 # a subdirectory. (In the current directory they get
1214 # erased by a `rm -f *_.c' rule.)
1215 $clean_files{$source_} = MOSTLY_CLEAN
1217 # Output an additional rule if _.c and .c are not in
1218 # the same directory. (_.c is always in $objdir.)
1219 if ($objdir ne $srcdir)
1221 (my $obj_ = $obj) =~ s/\$U/_/g;
1222 (my $depbase_ = $depbase) =~ s/\$U/_/g;
1223 $source_ = basename ($source_);
1226 file_contents ($rule_file,
1227 new Automake::Location,
1231 DEPBASE => $depbase_,
1234 OBJ => "$obj_$myext",
1235 OBJOBJ => "$obj_.obj",
1236 LTOBJ => "$obj_.lo",
1238 COMPILE => $obj_compile,
1239 LTCOMPILE => $obj_ltcompile,
1240 -o => $output_flag);
1242 $depbase =~ s/\$U//g;
1243 $source =~ s/\$U//g;
1248 file_contents ($rule_file,
1249 new Automake::Location,
1253 DEPBASE => $depbase,
1256 # Use $myext and not `.o' here, in case
1257 # we are actually building a new source
1258 # file -- e.g. via yacc.
1259 OBJ => "$obj$myext",
1260 OBJOBJ => "$obj.obj",
1263 COMPILE => $obj_compile,
1264 LTCOMPILE => $obj_ltcompile,
1265 -o => $output_flag);
1268 # The rest of the loop is done once per language.
1269 next if defined $done{$lang};
1272 # Load the language dependent Makefile chunks.
1273 my %lang = map { uc ($_) => 0 } keys %languages;
1274 $lang{uc ($lang->name)} = 1;
1275 $output_rules .= file_contents ('lang-compile',
1276 new Automake::Location,
1279 # If the source to a program consists entirely of code from a
1280 # `pure' language, for instance C++ for Fortran 77, then we
1281 # don't need the C compiler code. However if we run into
1282 # something unusual then we do generate the C code. There are
1283 # probably corner cases here that do not work properly.
1284 # People linking Java code to Fortran code deserve pain.
1285 $needs_c ||= ! $lang->pure;
1287 define_compiler_variable ($lang)
1288 if ($lang->compile);
1290 define_linker_variable ($lang)
1293 require_variables ("$am_file.am", $lang->Name . " source seen",
1294 TRUE, @{$lang->config_vars});
1296 # Call the finisher.
1299 # Flags listed in `->flags' are user variables (per GNU Standards),
1300 # they should not be overridden in the Makefile...
1301 my @dont_override = @{$lang->flags};
1302 # ... and so is LDFLAGS.
1303 push @dont_override, 'LDFLAGS' if $lang->link;
1305 foreach my $flag (@dont_override)
1307 my $var = var $flag;
1310 for my $cond ($var->conditions->conds)
1312 if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
1314 msg_cond_var ('gnu', $cond, $flag,
1315 "`$flag' is a user variable, "
1316 . "you should not override it;\n"
1317 . "use `AM_$flag' instead.");
1324 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1325 # suffix rule was learned), don't bother with the C stuff. But if
1326 # anything else creeps in, then use it.
1328 if $need_link || suffix_rules_count > 1;
1332 &define_compiler_variable ($languages{'c'})
1333 unless defined $done{$languages{'c'}};
1334 define_linker_variable ($languages{'c'});
1338 # Check to make sure a source defined in LIBOBJS is not explicitly
1339 # mentioned. This is a separate function (as opposed to being inlined
1340 # in handle_source_transform) because it isn't always appropriate to
1342 sub check_libobjs_sources
1344 my ($one_file, $unxformed) = @_;
1346 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1347 'dist_EXTRA_', 'nodist_EXTRA_')
1350 my $varname = $prefix . $one_file . '_SOURCES';
1351 my $var = var ($varname);
1354 @files = $var->value_as_list_recursive;
1356 elsif ($prefix eq '')
1358 @files = ($unxformed . '.c');
1365 foreach my $file (@files)
1367 err_var ($prefix . $one_file . '_SOURCES',
1368 "automatically discovered file `$file' should not" .
1369 " be explicitly mentioned")
1370 if defined $libsources{$file};
1377 # handle_single_transform_list ($VAR, $TOPPARENT, $DERIVED, $OBJ, @FILES)
1378 # -----------------------------------------------------------------------
1379 # Does much of the actual work for handle_source_transform.
1381 # $VAR is the name of the variable that the source filenames come from
1382 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1383 # $DERIVED is the name of resulting executable or library
1384 # $OBJ is the object extension (e.g., `$U.lo')
1385 # @FILES is the list of source files to transform
1386 # Result is a list of the names of objects
1387 # %linkers_used will be updated with any linkers needed
1388 sub handle_single_transform_list ($$$$@)
1390 my ($var, $topparent, $derived, $obj, @files) = @_;
1392 my $nonansi_obj = $obj;
1393 $nonansi_obj =~ s/\$U//g;
1395 # Turn sources into objects. We use a while loop like this
1396 # because we might add to @files in the loop.
1397 while (scalar @files > 0)
1401 # Configure substitutions in _SOURCES variables are errors.
1404 my $parent_msg = '';
1405 $parent_msg = "\nand is referred to from `$topparent'"
1406 if $topparent ne $var->name;
1408 "`" . $var->name . "' includes configure substitution `$_'"
1409 . $parent_msg . ";\nconfigure " .
1410 "substitutions are not allowed in _SOURCES variables");
1414 # If the source file is in a subdirectory then the `.o' is put
1415 # into the current directory, unless the subdir-objects option
1418 # Split file name into base and extension.
1419 next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
1421 my $directory = $1 || '';
1425 # We must generate a rule for the object if it requires its own flags.
1427 my ($linker, $object);
1429 # This records whether we've seen a derived source file (e.g.
1431 my $derived_source = 0;
1433 # This holds the `aggregate context' of the file we are
1434 # currently examining. If the file is compiled with
1435 # per-object flags, then it will be the name of the object.
1436 # Otherwise it will be `AM'. This is used by the target hook
1437 # language function.
1438 my $aggregate = 'AM';
1440 $extension = &derive_suffix ($extension, $nonansi_obj);
1442 if ($extension_map{$extension} &&
1443 ($lang = $languages{$extension_map{$extension}}))
1445 # Found the language, so see what it says.
1446 &saw_extension ($extension);
1448 # Note: computed subr call. The language rewrite function
1449 # should return one of the LANG_* constants. It could
1450 # also return a list whose first value is such a constant
1451 # and whose second value is a new source extension which
1452 # should be applied. This means this particular language
1453 # generates another source file which we must then process
1455 my $subr = \&{'lang_' . $lang->name . '_rewrite'};
1456 my ($r, $source_extension)
1457 = &$subr ($directory, $base, $extension);
1458 # Skip this entry if we were asked not to process it.
1459 next if $r == LANG_IGNORE;
1461 # Now extract linker and other info.
1462 $linker = $lang->linker;
1465 if (defined $source_extension)
1467 $this_obj_ext = $source_extension;
1468 $derived_source = 1;
1472 $this_obj_ext = $obj;
1476 $this_obj_ext = $nonansi_obj;
1478 $object = $base . $this_obj_ext;
1480 # Do we have per-executable flags for this executable?
1481 my $have_per_exec_flags = 0;
1482 foreach my $flag (@{$lang->flags})
1484 if (set_seen ("${derived}_$flag"))
1486 $have_per_exec_flags = 1;
1491 if ($have_per_exec_flags)
1493 # We have a per-executable flag in effect for this
1494 # object. In this case we rewrite the object's
1495 # name to ensure it is unique. We also require
1496 # the `compile' program to deal with compilers
1497 # where `-c -o' does not work.
1499 # We choose the name `DERIVED_OBJECT' to ensure
1500 # (1) uniqueness, and (2) continuity between
1501 # invocations. However, this will result in a
1502 # name that is too long for losing systems, in
1503 # some situations. So we provide _SHORTNAME to
1506 my $dname = $derived;
1507 my $var = var ($derived . '_SHORTNAME');
1510 # FIXME: should use the same Condition as
1511 # the _SOURCES variable. But this is really
1512 # silly overkill -- nobody should have
1513 # conditional shortnames.
1514 $dname = $var->variable_value;
1516 $object = $dname . '-' . $object;
1518 require_conf_file ("$am_file.am", FOREIGN, 'compile')
1519 if $lang->name eq 'c';
1521 prog_error ($lang->name . " flags defined without compiler")
1522 if ! defined $lang->compile;
1527 # If rewrite said it was ok, put the object into a
1529 if ($r == LANG_SUBDIR && $directory ne '')
1531 $object = $directory . '/' . $object;
1534 # If doing dependency tracking, then we can't print
1535 # the rule. If we have a subdir object, we need to
1536 # generate an explicit rule. Actually, in any case
1537 # where the object is not in `.' we need a special
1538 # rule. The per-object rules in this case are
1539 # generated later, by handle_languages.
1540 if ($renamed || $directory ne '')
1542 my $obj_sans_ext = substr ($object, 0,
1543 - length ($this_obj_ext));
1544 my $full_ansi = $full;
1545 if ($lang->ansi && option 'ansi2knr')
1547 $full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
1548 $obj_sans_ext .= '$U';
1551 my $val = ("$full_ansi $obj_sans_ext "
1552 # Only use $this_obj_ext in the derived
1553 # source case because in the other case we
1554 # *don't* want $(OBJEXT) to appear here.
1555 . ($derived_source ? $this_obj_ext : '.o'));
1557 # If we renamed the object then we want to use the
1558 # per-executable flag name. But if this is simply a
1559 # subdir build then we still want to use the AM_ flag
1563 $val = "$derived $val";
1564 $aggregate = $derived;
1571 # Each item on this list is a string consisting of
1572 # four space-separated values: the derived flag prefix
1573 # (e.g. for `foo_CFLAGS', it is `foo'), the name of the
1574 # source file, the base name of the output file, and
1575 # the extension for the object file.
1576 push (@{$lang_specific_files{$lang->name}}, $val);
1579 elsif ($extension eq $nonansi_obj)
1581 # This is probably the result of a direct suffix rule.
1582 # In this case we just accept the rewrite.
1583 $object = "$base$extension";
1588 # No error message here. Used to have one, but it was
1590 # FIXME: we could potentially do more processing here,
1591 # perhaps treating the new extension as though it were a
1592 # new source extension (as above). This would require
1593 # more restructuring than is appropriate right now.
1597 err_am "object `$object' created by `$full' and `$object_map{$object}'"
1598 if (defined $object_map{$object}
1599 && $object_map{$object} ne $full);
1601 my $comp_val = (($object =~ /\.lo$/)
1602 ? COMPILE_LIBTOOL : COMPILE_ORDINARY);
1603 (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
1604 if (defined $object_compilation_map{$comp_obj}
1605 && $object_compilation_map{$comp_obj} != 0
1606 # Only see the error once.
1607 && ($object_compilation_map{$comp_obj}
1608 != (COMPILE_LIBTOOL | COMPILE_ORDINARY))
1609 && $object_compilation_map{$comp_obj} != $comp_val)
1611 err_am "object `$comp_obj' created both with libtool and without";
1613 $object_compilation_map{$comp_obj} |= $comp_val;
1617 # Let the language do some special magic if required.
1618 $lang->target_hook ($aggregate, $object, $full);
1621 if ($derived_source)
1623 prog_error ($lang->name . " has automatic dependency tracking")
1624 if $lang->autodep ne 'no';
1625 # Make sure this new source file is handled next. That will
1626 # make it appear to be at the right place in the list.
1627 unshift (@files, $object);
1628 # Distribute derived sources unless the source they are
1629 # derived from is not.
1630 &push_dist_common ($object)
1631 unless ($topparent =~ /^(?:nobase_)?nodist_/);
1635 $linkers_used{$linker} = 1;
1637 push (@result, $object);
1639 if (! defined $object_map{$object})
1642 $object_map{$object} = $full;
1644 # If resulting object is in subdir, we need to make
1645 # sure the subdir exists at build time.
1646 if ($object =~ /\//)
1648 # FIXME: check that $DIRECTORY is somewhere in the
1651 # For Java, the way we're handling it right now, a
1652 # `..' component doesn't make sense.
1653 if ($lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
1655 err_am "`$full' should not contain a `..' component";
1658 # Make sure object is removed by `make mostlyclean'.
1659 $compile_clean_files{$object} = MOSTLY_CLEAN;
1660 # If we have a libtool object then we also must remove
1662 if ($object =~ /\.lo$/)
1664 (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
1665 $compile_clean_files{$xobj} = MOSTLY_CLEAN;
1667 # Remove any libtool object in this directory.
1668 $libtool_clean_directories{$directory} = 1;
1671 push (@dep_list, require_build_directory ($directory));
1673 # If we're generating dependencies, we also want
1674 # to make sure that the appropriate subdir of the
1675 # .deps directory is created.
1677 require_build_directory ($directory . '/$(DEPDIR)'))
1678 unless option 'no-dependencies';
1681 &pretty_print_rule ($object . ':', "\t", @dep_list)
1682 if scalar @dep_list > 0;
1685 # Transform .o or $o file into .P file (for automatic
1687 if ($lang && $lang->autodep ne 'no')
1689 my $depfile = $object;
1690 $depfile =~ s/\.([^.]*)$/.P$1/;
1691 $depfile =~ s/\$\(OBJEXT\)$/o/;
1692 $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
1693 . basename ($depfile)} = 1;
1702 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
1703 # $OBJ, $PARENT, $TOPPARENT, $WHERE)
1704 # ---------------------------------------------------------------------
1705 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
1708 # $VAR is the name of the _SOURCES variable
1709 # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
1710 # it will be generated and returned).
1711 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
1712 # work done to determine the linker will be).
1713 # $ONE_FILE is the canonical (transformed) name of object to build
1714 # $OBJ is the object extension (i.e. either `.o' or `.lo').
1715 # $TOPPARENT is the _SOURCES variable being processed.
1716 # $WHERE context into which this definition is done
1718 # Result is a pair ($LINKER, $OBJVAR):
1719 # $LINKER is a boolean, true if a linker is needed to deal with the objects
1720 sub define_objects_from_sources ($$$$$$$)
1722 my ($var, $objvar, $nodefine, $one_file, $obj, $topparent, $where) = @_;
1724 my $needlinker = "";
1726 transform_variable_recursively
1727 ($var, $objvar, 'am__objects', $nodefine, $where,
1728 # The transform code to run on each filename.
1730 my ($subvar, $val, $cond, $full_cond) = @_;
1731 my @trans = &handle_single_transform_list ($subvar, $topparent,
1732 $one_file, $obj, $val);
1733 $needlinker = "true" if @trans;
1741 # Handle SOURCE->OBJECT transform for one program or library.
1743 # canonical (transformed) name of object to build
1744 # actual name of object to build
1745 # object extension (i.e. either `.o' or `$o'.
1746 # Return result is name of linker variable that must be used.
1747 # Empty return means just use `LINK'.
1748 sub handle_source_transform
1750 # one_file is canonical name. unxformed is given name. obj is
1752 my ($one_file, $unxformed, $obj, $where) = @_;
1756 # No point in continuing if _OBJECTS is defined.
1757 return if reject_var ($one_file . '_OBJECTS',
1758 $one_file . '_OBJECTS should not be defined');
1763 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1764 'dist_EXTRA_', 'nodist_EXTRA_')
1766 my $varname = $prefix . $one_file . "_SOURCES";
1767 my $var = var $varname;
1770 # We are going to define _OBJECTS variables using the prefix.
1771 # Then we glom them all together. So we can't use the null
1772 # prefix here as we need it later.
1773 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
1775 # Keep track of which prefixes we saw.
1776 $used_pfx{$xpfx} = 1
1777 unless $prefix =~ /EXTRA_/;
1779 push @sources, "\$($varname)";
1780 if ($prefix !~ /^nodist_/)
1782 # If the VAR wasn't defined conditionally, we add
1783 # it to DIST_SOURCES as is. Otherwise we create a
1784 # am__VAR_DIST variable which contains all possible values,
1785 # and add this variable to DIST_SOURCES.
1786 my $distvar = $varname;
1787 if ($var->has_conditional_contents)
1789 $distvar = "am__${varname}_DIST";
1790 my @files = uniq ($var->value_as_list_recursive);
1791 define_pretty_variable ($distvar, TRUE, $where, @files);
1793 push @dist_sources, "\$($distvar)"
1797 define_objects_from_sources ($varname,
1798 $xpfx . $one_file . '_OBJECTS',
1799 $prefix =~ /EXTRA_/,
1800 $one_file, $obj, $varname, $where);
1804 $linker ||= &resolve_linker (%linkers_used);
1807 my @keys = sort keys %used_pfx;
1808 if (scalar @keys == 0)
1810 &define_variable ($one_file . "_SOURCES", $unxformed . ".c", $where);
1811 push (@sources, $unxformed . '.c');
1812 push (@dist_sources, $unxformed . '.c');
1816 &handle_single_transform_list ($one_file . '_SOURCES',
1817 $one_file . '_SOURCES',
1820 $linker ||= &resolve_linker (%linkers_used);
1821 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
1825 @keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
1826 define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
1829 # If we want to use `LINK' we must make sure it is defined.
1839 # handle_lib_objects ($XNAME, $VAR)
1840 # ---------------------------------
1841 # Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
1842 # Also, generate _DEPENDENCIES variable if appropriate.
1844 # transformed name of object being built, or empty string if no object
1845 # name of _LDADD/_LIBADD-type variable to examine
1846 # Returns 1 if LIBOBJS seen, 0 otherwise.
1847 sub handle_lib_objects
1849 my ($xname, $varname) = @_;
1851 my $var = var ($varname);
1852 prog_error "handle_lib_objects: `$varname' undefined"
1854 prog_error "handle_lib_objects: unexpected variable name `$varname'"
1855 unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
1856 my $prefix = $1 || 'AM_';
1858 my $seen_libobjs = 0;
1861 transform_variable_recursively
1862 ($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
1864 # Transformation function, run on each filename.
1866 my ($subvar, $val, $cond, $full_cond) = @_;
1870 # Skip -lfoo and -Ldir silently; these are explicitly allowed.
1871 if ($val !~ /^-[lL]/ &&
1872 # Skip -dlopen and -dlpreopen; these are explicitly allowed
1873 # for Libtool libraries or programs. (Actually we are a bit
1874 # laxest here since this code also applies to non-libtool
1875 # libraries or programs, for which -dlopen and -dlopreopen
1876 # are pure non-sence. Diagnosting this doesn't seems very
1877 # important: the developer will quickly get complaints from
1879 $val !~ /^-dl(?:pre)?open$/ &&
1880 # Only get this error once.
1884 # FIXME: should display a stack of nested variables
1885 # as context when $var != $subvar.
1886 err_var ($var, "linker flags such as `$val' belong in "
1887 . "`${prefix}LDFLAGS");
1891 elsif ($val !~ /^\@.*\@$/)
1893 # Assume we have a file of some sort, and output it into the
1894 # dependency variable. Autoconf substitutions are not output;
1895 # rarely is a new dependency substituted into e.g. foo_LDADD
1896 # -- but bad things (e.g. -lX11) are routinely substituted.
1897 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
1898 # and handled specially below.
1901 elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
1903 handle_LIBOBJS ($subvar, $full_cond, $1);
1907 elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
1909 handle_ALLOCA ($subvar, $full_cond, $1);
1918 return $seen_libobjs;
1921 sub handle_LIBOBJS ($$$)
1923 my ($var, $cond, $lt) = @_;
1925 my $myobjext = ($1 ? 'l' : '') . 'o';
1927 $var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
1928 if ! keys %libsources;
1930 foreach my $iter (keys %libsources)
1932 if ($iter =~ /\.[cly]$/)
1934 &saw_extension ($&);
1935 &saw_extension ('.c');
1938 if ($iter =~ /\.h$/)
1940 require_file_with_macro ($cond, $var, FOREIGN, $iter);
1942 elsif ($iter ne 'alloca.c')
1944 my $rewrite = $iter;
1945 $rewrite =~ s/\.c$/.P$myobjext/;
1946 $dep_files{'$(DEPDIR)/' . $rewrite} = 1;
1947 $rewrite = "^" . quotemeta ($iter) . "\$";
1948 # Only require the file if it is not a built source.
1949 my $bs = var ('BUILT_SOURCES');
1950 if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
1952 require_file_with_macro ($cond, $var, FOREIGN, $iter);
1958 sub handle_ALLOCA ($$$)
1960 my ($var, $cond, $lt) = @_;
1961 my $myobjext = ($lt ? 'l' : '') . 'o';
1963 $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
1964 $dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
1965 require_file_with_macro ($cond, $var, FOREIGN, 'alloca.c');
1966 &saw_extension ('c');
1969 # Canonicalize the input parameter
1973 $string =~ tr/A-Za-z0-9_\@/_/c;
1977 # Canonicalize a name, and check to make sure the non-canonical name
1978 # is never used. Returns canonical name. Arguments are name and a
1979 # list of suffixes to check for.
1980 sub check_canonical_spelling
1982 my ($name, @suffixes) = @_;
1984 my $xname = &canonicalize ($name);
1985 if ($xname ne $name)
1987 foreach my $xt (@suffixes)
1989 reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
1999 # Set up the compile suite.
2000 sub handle_compile ()
2003 unless $get_object_extension_was_run;
2006 my $default_includes = '';
2007 if (! option 'nostdinc')
2009 $default_includes = ' -I. -I$(srcdir)';
2011 my $var = var 'CONFIG_HEADER';
2014 foreach my $hdr (split (' ', $var->variable_value))
2016 $default_includes .= ' -I' . dirname ($hdr);
2021 my (@mostly_rms, @dist_rms);
2022 foreach my $item (sort keys %compile_clean_files)
2024 if ($compile_clean_files{$item} == MOSTLY_CLEAN)
2026 push (@mostly_rms, "\t-rm -f $item");
2028 elsif ($compile_clean_files{$item} == DIST_CLEAN)
2030 push (@dist_rms, "\t-rm -f $item");
2034 prog_error 'invalid entry in %compile_clean_files';
2038 my ($coms, $vars, $rules) =
2039 &file_contents_internal (1, "$libdir/am/compile.am",
2040 new Automake::Location,
2041 ('DEFAULT_INCLUDES' => $default_includes,
2042 'MOSTLYRMS' => join ("\n", @mostly_rms),
2043 'DISTRMS' => join ("\n", @dist_rms)));
2044 $output_vars .= $vars;
2045 $output_rules .= "$coms$rules";
2047 # Check for automatic de-ANSI-fication.
2048 if (option 'ansi2knr')
2050 my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
2051 my $ansi2knr_dir = '';
2053 require_variables ($ansi2knr_where, "option `ansi2knr' is used",
2054 TRUE, "ANSI2KNR", "U");
2056 # topdir is where ansi2knr should be.
2057 if ($ansi2knr_filename eq 'ansi2knr')
2059 # Only require ansi2knr files if they should appear in
2061 require_file ($ansi2knr_where, FOREIGN,
2062 'ansi2knr.c', 'ansi2knr.1');
2064 # ansi2knr needs to be built before subdirs, so unshift it.
2065 unshift (@all, '$(ANSI2KNR)');
2069 $ansi2knr_dir = dirname ($ansi2knr_filename);
2072 $output_rules .= &file_contents ('ansi2knr',
2073 new Automake::Location,
2074 'ANSI2KNR-DIR' => $ansi2knr_dir);
2081 # Handle libtool rules.
2084 return unless var ('LIBTOOL');
2086 # Libtool requires some files, but only at top level.
2087 require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
2088 if $relative_dir eq '.';
2091 foreach my $item (sort keys %libtool_clean_directories)
2093 my $dir = ($item eq '.') ? '' : "$item/";
2094 # .libs is for Unix, _libs for DOS.
2095 push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
2098 # Output the libtool compilation rules.
2099 $output_rules .= &file_contents ('libtool',
2100 new Automake::Location,
2101 LTRMS => join ("\n", @libtool_rms));
2104 # handle_programs ()
2105 # ------------------
2106 # Handle C programs.
2109 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2110 'bin', 'sbin', 'libexec', 'pkglib',
2112 return if ! @proglist;
2114 my $seen_global_libobjs =
2115 var ('LDADD') && &handle_lib_objects ('', 'LDADD');
2117 foreach my $pair (@proglist)
2119 my ($where, $one_file) = @$pair;
2121 my $seen_libobjs = 0;
2122 my $obj = &get_object_extension ($one_file);
2124 # Strip any $(EXEEXT) suffix the user might have added, or this
2125 # will confuse &handle_source_transform and &check_canonical_spelling.
2126 # We'll add $(EXEEXT) back later anyway.
2127 $one_file =~ s/\$\(EXEEXT\)$//;
2129 # Canonicalize names and check for misspellings.
2130 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2131 '_SOURCES', '_OBJECTS',
2134 $where->push_context ("while processing program `$one_file'");
2135 $where->set (INTERNAL->get);
2137 my $linker = &handle_source_transform ($xname, $one_file, $obj, $where);
2139 if (var ($xname . "_LDADD"))
2141 $seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
2145 # User didn't define prog_LDADD override. So do it.
2146 &define_variable ($xname . '_LDADD', '$(LDADD)', $where);
2148 # This does a bit too much work. But we need it to
2149 # generate _DEPENDENCIES when appropriate.
2152 $seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
2156 reject_var ($xname . '_LIBADD',
2157 "use `${xname}_LDADD', not `${xname}_LIBADD'");
2159 set_seen ($xname . '_DEPENDENCIES');
2160 set_seen ($xname . '_LDFLAGS');
2162 # Determine program to use for link.
2164 if (var ($xname . '_LINK'))
2166 $xlink = $xname . '_LINK';
2170 $xlink = $linker ? $linker : 'LINK';
2173 # If the resulting program lies into a subdirectory,
2174 # make sure this directory will exist.
2175 my $dirstamp = require_build_directory_maybe ($one_file);
2177 $output_rules .= &file_contents ('program',
2179 PROGRAM => $one_file,
2182 DIRSTAMP => $dirstamp,
2183 EXEEXT => '$(EXEEXT)');
2185 if ($seen_libobjs || $seen_global_libobjs)
2187 if (var ($xname . '_LDADD'))
2189 &check_libobjs_sources ($xname, $xname . '_LDADD');
2191 elsif (var ('LDADD'))
2193 &check_libobjs_sources ($xname, 'LDADD');
2200 # handle_libraries ()
2201 # -------------------
2203 sub handle_libraries
2205 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2206 'lib', 'pkglib', 'noinst', 'check');
2207 return if ! @liblist;
2209 my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2214 my $var = rvar ($prefix[0] . '_LIBRARIES');
2215 $var->requires_variables ('library used', 'RANLIB');
2218 foreach my $pair (@liblist)
2220 my ($where, $onelib) = @$pair;
2222 my $seen_libobjs = 0;
2223 # Check that the library fits the standard naming convention.
2224 if (basename ($onelib) !~ /^lib.*\.a/)
2226 error $where, "`$onelib' is not a standard library name";
2229 $where->push_context ("while processing library `$onelib'");
2230 $where->set (INTERNAL->get);
2232 my $obj = &get_object_extension ($onelib);
2234 # Canonicalize names and check for misspellings.
2235 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2236 '_OBJECTS', '_DEPENDENCIES',
2239 if (! var ($xlib . '_AR'))
2241 &define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
2244 # Generate support for conditional object inclusion in
2246 if (var ($xlib . '_LIBADD'))
2248 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2255 &define_variable ($xlib . "_LIBADD", '', $where);
2258 reject_var ($xlib . '_LDADD',
2259 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2261 # Make sure we at look at this.
2262 set_seen ($xlib . '_DEPENDENCIES');
2264 &handle_source_transform ($xlib, $onelib, $obj, $where);
2266 # If the resulting library lies into a subdirectory,
2267 # make sure this directory will exist.
2268 my $dirstamp = require_build_directory_maybe ($onelib);
2270 $output_rules .= &file_contents ('library',
2274 DIRSTAMP => $dirstamp);
2278 if (var ($xlib . '_LIBADD'))
2280 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2287 # handle_ltlibraries ()
2288 # ---------------------
2289 # Handle shared libraries.
2290 sub handle_ltlibraries
2292 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2293 'noinst', 'lib', 'pkglib', 'check');
2294 return if ! @liblist;
2297 my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2302 my $var = rvar ($prefix[0] . '_LTLIBRARIES');
2303 $var->requires_variables ('Libtool library used', 'LIBTOOL');
2306 my %liblocations = (); # Location (in Makefile.am) of each library.
2308 foreach my $key (@prefix)
2310 # Get the installation directory of each library.
2311 (my $dir = $key) =~ s/^nobase_//;
2312 my $var = rvar ($key . '_LTLIBRARIES');
2313 for my $pair ($var->value_as_list_recursive (location => 1))
2315 my ($where, $lib) = @$pair;
2316 # We reject libraries which are installed in several places,
2317 # because we don't handle this in the rules (think `-rpath').
2319 # However, we allow the same library to be listed many times
2320 # for the same directory. This is for users who need setups
2323 # lib_LTLIBRARIES = libfoo.la
2326 # lib_LTLIBRARIES = libfoo.la
2329 # Actually this will also allow
2330 # lib_LTLIBRARIES = libfoo.la libfoo.la
2331 # Diagnosing this case doesn't seem worth the plain (we'd
2332 # have to fill $instdirs on a per-condition basis, check
2333 # implied conditions, etc.)
2334 if (defined $instdirs{$lib} && $instdirs{$lib} ne $dir)
2336 error ($where, "`$lib' is already going to be installed in "
2337 . "`$instdirs{$lib}'", partial => 1);
2338 error ($liblocations{$lib}, "`$lib' previously declared here");
2342 $instdirs{$lib} = $dir;
2343 $liblocations{$lib} = $where->clone;
2348 foreach my $pair (@liblist)
2350 my ($where, $onelib) = @$pair;
2352 my $seen_libobjs = 0;
2353 my $obj = &get_object_extension ($onelib);
2355 # Canonicalize names and check for misspellings.
2356 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2357 '_SOURCES', '_OBJECTS',
2360 # Check that the library fits the standard naming convention.
2361 my $libname_rx = "^lib.*\.la";
2362 my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
2363 my $ldvar2 = var ('LDFLAGS');
2364 if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
2365 || ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
2367 # Relax name checking for libtool modules.
2368 $libname_rx = "\.la";
2370 if (basename ($onelib) !~ /$libname_rx$/)
2372 msg ('error-gnu/warn', $where,
2373 "`$onelib' is not a standard libtool library name");
2376 $where->push_context ("while processing Libtool library `$onelib'");
2377 $where->set (INTERNAL->get);
2379 # Make sure we at look at these.
2380 set_seen ($xlib . '_LDFLAGS');
2381 set_seen ($xlib . '_DEPENDENCIES');
2383 # Generate support for conditional object inclusion in
2385 if (var ($xlib . '_LIBADD'))
2387 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2394 &define_variable ($xlib . "_LIBADD", '', $where);
2397 reject_var ("${xlib}_LDADD",
2398 "use `${xlib}_LIBADD', not `${xlib}_LDADD'");
2401 my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where);
2403 # Determine program to use for link.
2405 if (var ($xlib . '_LINK'))
2407 $xlink = $xlib . '_LINK';
2411 $xlink = $linker ? $linker : 'LINK';
2415 if ($instdirs{$onelib} eq 'EXTRA'
2416 || $instdirs{$onelib} eq 'noinst'
2417 || $instdirs{$onelib} eq 'check')
2419 # It's an EXTRA_ library, so we can't specify -rpath,
2420 # because we don't know where the library will end up.
2421 # The user probably knows, but generally speaking automake
2422 # doesn't -- and in fact configure could decide
2423 # dynamically between two different locations.
2428 $rpath = ('-rpath $(' . $instdirs{$onelib} . 'dir)');
2431 # If the resulting library lies into a subdirectory,
2432 # make sure this directory will exist.
2433 my $dirstamp = require_build_directory_maybe ($onelib);
2435 # Remember to cleanup .libs/ in this directory.
2436 my $dirname = dirname $onelib;
2437 $libtool_clean_directories{$dirname} = 1;
2439 $output_rules .= &file_contents ('ltlibrary',
2441 LTLIBRARY => $onelib,
2442 XLTLIBRARY => $xlib,
2445 DIRSTAMP => $dirstamp);
2448 if (var ($xlib . '_LIBADD'))
2450 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2456 # See if any _SOURCES variable were misspelled.
2459 # It is ok if the user sets this particular variable.
2460 set_seen 'AM_LDFLAGS';
2462 foreach my $var (variables)
2464 my $varname = $var->name;
2465 # A configure variable is always legitimate.
2466 next if exists $configure_vars{$varname};
2469 foreach my $primary ('_SOURCES', '_LIBADD', '_LDADD', '_LDFLAGS',
2472 if ($varname =~ /$primary$/)
2480 for my $cond ($var->conditions->conds)
2482 msg_var 'syntax', $var, "unused variable: `$varname'"
2483 unless $var->rdef ($cond)->seen;
2492 # NOTE we no longer automatically clean SCRIPTS, because it is
2493 # useful to sometimes distribute scripts verbatim. This happens
2494 # e.g. in Automake itself.
2495 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2496 'bin', 'sbin', 'libexec', 'pkgdata',
2503 ## ------------------------ ##
2504 ## Handling Texinfo files. ##
2505 ## ------------------------ ##
2507 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2508 # &scan_texinfo_file ($FILENAME)
2509 # ------------------------------
2510 # $OUTFILE - name of the info file produced by $FILENAME.
2511 # $VFILE - name of the version.texi file used (undef if none).
2512 # @CLEAN_FILES - list of byproducts (indexes etc.)
2513 sub scan_texinfo_file ($)
2515 my ($filename) = @_;
2517 # Some of the following extensions are always created, no matter
2518 # whether indexes are used or not. Other (like cps, fns, ... pgs)
2519 # are only created when they are used. We used to scan $FILENAME
2520 # for their use, but that is not enough: they could be used in
2521 # included files. We can't scan included files because we don't
2522 # know the include path. Therefore we always erase these files, no
2523 # matter whether they are used or not.
2525 # (tmp is only created if an @macro is used and a certain e-TeX
2526 # feature is not available.)
2527 my %clean_suffixes =
2528 map { $_ => 1 } (qw(aux log toc tmp
2534 pg pgs)); # grep 'new.*index' texinfo.tex
2536 my $texi = new Automake::XFile "< $filename";
2537 verb "reading $filename";
2539 my ($outfile, $vfile);
2540 while ($_ = $texi->getline)
2542 if (/^\@setfilename +(\S+)/)
2544 # Honor only the first @setfilename. (It's possible to have
2545 # more occurrences later if the manual shows examples of how
2546 # to use @setfilename...)
2550 if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
2552 error ("$filename:$.",
2553 "output `$outfile' has unrecognized extension");
2557 # A "version.texi" file is actually any file whose name matches
2559 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2564 # Try to find new or unused indexes.
2566 # Creating a new category of index.
2567 elsif (/^\@def(code)?index (\w+)/)
2569 $clean_suffixes{$2} = 1;
2570 $clean_suffixes{"$2s"} = 1;
2573 # Merging an index into an another.
2574 elsif (/^\@syn(code)?index (\w+) (\w+)/)
2576 delete $clean_suffixes{"$2s"};
2577 $clean_suffixes{"$3s"} = 1;
2584 err_am "`$filename' missing \@setfilename";
2588 my $infobase = basename ($filename);
2589 $infobase =~ s/\.te?xi(nfo)?$//;
2590 return ($outfile, $vfile,
2591 map { "$infobase.$_" } (sort keys %clean_suffixes));
2595 # ($DIRSTAMP, @CLEAN_FILES)
2596 # output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
2597 # ------------------------------------------------------------------
2598 # SOURCE - the source Texinfo file
2599 # DEST - the destination Info file
2600 # INSRC - wether DEST should be built in the source tree
2601 # DEPENDENCIES - known dependencies
2602 sub output_texinfo_build_rules ($$$@)
2604 my ($source, $dest, $insrc, @deps) = @_;
2606 # Split `a.texi' into `a' and `.texi'.
2607 my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
2608 my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
2613 # We can output two kinds of rules: the "generic" rules use Make
2614 # suffix rules and are appropriate when $source and $dest do not lie
2615 # in a sub-directory; the "specific" rules are needed in the other
2618 # The former are output only once (this is not really apparent here,
2619 # but just remember that some logic deeper in Automake will not
2620 # output the same rule twice); while the later need to be output for
2621 # each Texinfo source.
2624 my $sdir = dirname $source;
2625 if ($sdir eq '.' && dirname ($dest) eq '.')
2628 $makeinfoflags = '-I $(srcdir)';
2633 $makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
2636 # A directory can contain two kinds of info files: some built in the
2637 # source tree, and some built in the build tree. The rules are
2638 # different in each case. However we cannot output two different
2639 # set of generic rules. Because in-source builds are more usual, we
2640 # use generic rules in this case and fall back to "specific" rules
2641 # for build-dir builds. (It should not be a problem to invert this
2643 $generic = 0 unless $insrc;
2645 # We cannot use a suffix rule to build info files with an empty
2646 # extension. Otherwise we would output a single suffix inference
2647 # rule, with separate dependencies, as in
2651 # foo.info: foo.texi
2653 # which confuse Solaris make. (See the Autoconf manual for
2654 # details.) Therefore we use a specific rule in this case. This
2655 # applies to info files only (dvi and pdf files always have an
2657 my $generic_info = ($generic && $dsfx) ? 1 : 0;
2659 # If the resulting file lie into a subdirectory,
2660 # make sure this directory will exist.
2661 my $dirstamp = require_build_directory_maybe ($dest);
2663 my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
2665 $output_rules .= file_contents ('texibuild',
2666 new Automake::Location,
2668 DEST_PREFIX => $dpfx,
2669 DEST_INFO_PREFIX => $dipfx,
2670 DEST_SUFFIX => $dsfx,
2671 DIRSTAMP => $dirstamp,
2672 GENERIC => $generic,
2673 GENERIC_INFO => $generic_info,
2675 MAKEINFOFLAGS => $makeinfoflags,
2678 SOURCE_INFO => ($generic_info
2680 SOURCE_REAL => $source,
2681 SOURCE_SUFFIX => $ssfx,
2683 return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
2688 # handle_texinfo_helper ($info_texinfos)
2689 # --------------------------------------
2690 # Handle all Texinfo source; helper for handle_texinfo.
2691 sub handle_texinfo_helper ($)
2693 my ($info_texinfos) = @_;
2694 my (@infobase, @info_deps_list, @texi_deps);
2699 # Build a regex matching user-cleaned files.
2700 my $d = var 'DISTCLEANFILES';
2701 my $c = var 'CLEANFILES';
2703 push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
2704 push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
2705 @f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
2706 my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
2708 foreach my $texi ($info_texinfos->value_as_list_recursive (inner_expand
2711 my $infobase = $texi;
2712 $infobase =~ s/\.(txi|texinfo|texi)$//;
2714 if ($infobase eq $texi)
2716 # FIXME: report line number.
2717 err_am "texinfo file `$texi' has unrecognized extension";
2721 push @infobase, $infobase;
2723 # If 'version.texi' is referenced by input file, then include
2724 # automatic versioning capability.
2725 my ($out_file, $vtexi, @clean_files) =
2726 scan_texinfo_file ("$relative_dir/$texi")
2728 push (@texi_cleans, @clean_files);
2730 # If the Texinfo source is in a subdirectory, create the
2731 # resulting info in this subdirectory. If it is in the current
2732 # directory, try hard to not prefix "./" because it breaks the
2734 my $outdir = dirname ($texi) . '/';
2735 $outdir = "" if $outdir eq './';
2736 $out_file = $outdir . $out_file;
2738 # Until Automake 1.6.3, .info files were built in the
2739 # source tree. This was an obstacle to the support of
2740 # non-distributed .info files, and non-distributed .texi
2743 # * Non-distributed .texi files is important in some packages
2744 # where .texi files are built at make time, probably using
2745 # other binaries built in the package itself, maybe using
2746 # tools or information found on the build host. Because
2747 # these files are not distributed they are always rebuilt
2748 # at make time; they should therefore not lie in the source
2749 # directory. One plan was to support this using
2750 # nodist_info_TEXINFOS or something similar. (Doing this
2751 # requires some sanity checks. For instance Automake should
2753 # dist_info_TEXINFO = foo.texi
2754 # nodist_foo_TEXINFO = included.texi
2755 # because a distributed file should never depend on a
2756 # non-distributed file.)
2758 # * If .texi files are not distributed, then .info files should
2759 # not be distributed either. There are also cases where one
2760 # want to distribute .texi files, but do not want to
2761 # distribute the .info files. For instance the Texinfo package
2762 # distributes the tool used to build these files; it would
2763 # be a waste of space to distribute them. It's not clear
2764 # which syntax we should use to indicate that .info files should
2765 # not be distributed. Akim Demaille suggested that eventually
2766 # we switch to a new syntax:
2767 # | Maybe we should take some inspiration from what's already
2768 # | done in the rest of Automake. Maybe there is too much
2769 # | syntactic sugar here, and you want
2770 # | nodist_INFO = bar.info
2771 # | dist_bar_info_SOURCES = bar.texi
2772 # | bar_texi_DEPENDENCIES = foo.texi
2773 # | with a bit of magic to have bar.info represent the whole
2774 # | bar*info set. That's a lot more verbose that the current
2775 # | situation, but it is # not new, hence the user has less
2778 # | But there is still too much room for meaningless specs:
2779 # | nodist_INFO = bar.info
2780 # | dist_bar_info_SOURCES = bar.texi
2781 # | dist_PS = bar.ps something-written-by-hand.ps
2782 # | nodist_bar_ps_SOURCES = bar.texi
2783 # | bar_texi_DEPENDENCIES = foo.texi
2784 # | here bar.texi is dist_ in line 2, and nodist_ in 4.
2786 # Back to the point, it should be clear that in order to support
2787 # non-distributed .info files, we need to build them in the
2788 # build tree, not in the source tree (non-distributed .texi
2789 # files are less of a problem, because we do not output build
2790 # rules for them). In Automake 1.7 .info build rules have been
2791 # largely cleaned up so that .info files get always build in the
2792 # build tree, even when distributed. The idea was that
2793 # (1) if during a VPATH build the .info file was found to be
2794 # absent or out-of-date (in the source tree or in the
2795 # build tree), Make would rebuild it in the build tree.
2796 # If an up-to-date source-tree of the .info file existed,
2797 # make would not rebuild it in the build tree.
2798 # (2) having two copies of .info files, one in the source tree
2799 # and one (newer) in the build tree is not a problem
2800 # because `make dist' always pick files in the build tree
2802 # However it turned out the be a bad idea for several reasons:
2803 # * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do behave
2804 # like GNU Make on point (1) above. These implementations
2805 # of Make would always rebuild .info files in the build
2806 # tree, even if such files were up to date in the source
2807 # tree. Consequently, it was impossible the perform a VPATH
2808 # build of a package containing Texinfo files using these
2809 # Make implementations.
2810 # (Refer to the Autoconf Manual, section "Limitation of
2811 # Make", paragraph "VPATH", item "target lookup", for
2812 # an account of the differences between these
2814 # * The GNU Coding Standards require these files to be built
2815 # in the source-tree (when they are distributed, that is).
2816 # * Keeping a fresher copy of distributed files in the
2817 # build tree can be annoying during development because
2818 # - if the files is kept under CVS, you really want it
2819 # to be updated in the source tree
2820 # - it os confusing that `make distclean' does not erase
2821 # all files in the build tree.
2823 # Consequently, starting with Automake 1.8, .info files are
2824 # built in the source tree again. Because we still plan to
2825 # support non-distributed .info files at some point, we
2826 # have a single variable ($INSRC) that controls whether
2827 # the current .info file must be built in the source tree
2828 # or in the build tree. Actually this variable is switched
2829 # off for .info files that appear to be cleaned; this is
2830 # for backward compatibility with package such as Texinfo,
2831 # which do things like
2832 # info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
2833 # DISTCLEANFILES = texinfo texinfo-* info*.info*
2834 # # Do not create info files for distribution.
2836 # in order not to distribute .info files.
2837 my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
2839 my $soutdir = '$(srcdir)/' . $outdir;
2840 $outdir = $soutdir if $insrc;
2842 # If user specified file_TEXINFOS, then use that as explicit
2845 push (@texi_deps, "$soutdir$vtexi") if $vtexi;
2847 my $canonical = canonicalize ($infobase);
2848 if (var ($canonical . "_TEXINFOS"))
2850 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
2851 push_dist_common ('$(' . $canonical . '_TEXINFOS)');
2854 my ($dirstamp, @cfiles) =
2855 output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
2856 push (@texi_cleans, @cfiles);
2858 push (@info_deps_list, $out_file);
2860 # If a vers*.texi file is needed, emit the rule.
2863 err_am ("`$vtexi', included in `$texi', "
2864 . "also included in `$versions{$vtexi}'")
2865 if defined $versions{$vtexi};
2866 $versions{$vtexi} = $texi;
2868 # We number the stamp-vti files. This is doable since the
2869 # actual names don't matter much. We only number starting
2870 # with the second one, so that the common case looks nice.
2871 my $vti = ($done ? $done : 'vti');
2874 # This is ugly, but it is our historical practice.
2875 if ($config_aux_dir_set_in_configure_in)
2877 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
2882 require_file_with_macro (TRUE, 'info_TEXINFOS',
2883 FOREIGN, 'mdate-sh');
2887 if ($config_aux_dir_set_in_configure_in)
2889 $conf_dir = $config_aux_dir;
2890 $conf_dir .= '/' unless $conf_dir =~ /\/$/;
2894 $conf_dir = '$(srcdir)/';
2896 $output_rules .= file_contents ('texi-vers',
2897 new Automake::Location,
2900 STAMPVTI => "${soutdir}stamp-$vti",
2901 VTEXI => "$soutdir$vtexi",
2903 DIRSTAMP => $dirstamp);
2907 # Handle location of texinfo.tex.
2908 my $need_texi_file = 0;
2910 if (var ('TEXINFO_TEX'))
2912 # The user defined TEXINFO_TEX so assume he knows what he is
2914 $texinfodir = ('$(srcdir)/'
2915 . dirname (variable_value ('TEXINFO_TEX')));
2917 elsif (option 'cygnus')
2919 $texinfodir = '$(top_srcdir)/../texinfo';
2920 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
2922 elsif ($config_aux_dir_set_in_configure_in)
2924 $texinfodir = $config_aux_dir;
2925 define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
2926 $need_texi_file = 2; # so that we require_conf_file later
2930 $texinfodir = '$(srcdir)';
2931 $need_texi_file = 1;
2933 define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
2935 push (@dist_targets, 'dist-info');
2937 if (! option 'no-installinfo')
2939 # Make sure documentation is made and installed first. Use
2940 # $(INFO_DEPS), not 'info', because otherwise recursive makes
2941 # get run twice during "make all".
2942 unshift (@all, '$(INFO_DEPS)');
2945 define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
2946 define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
2947 define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
2948 define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
2950 # This next isn't strictly needed now -- the places that look here
2951 # could easily be changed to look in info_TEXINFOS. But this is
2952 # probably better, in case noinst_TEXINFOS is ever supported.
2953 define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
2955 # Do some error checking. Note that this file is not required
2956 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
2958 if ($need_texi_file && ! option 'no-texinfo.tex')
2960 if ($need_texi_file > 1)
2962 require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
2967 require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
2972 return makefile_wrap ("", "\t ", @texi_cleans);
2978 # Handle all Texinfo source.
2979 sub handle_texinfo ()
2981 reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
2982 # FIXME: I think this is an obsolete future feature name.
2983 reject_var 'html_TEXINFOS', "HTML generation not yet supported";
2985 my $info_texinfos = var ('info_TEXINFOS');
2989 $texiclean = handle_texinfo_helper ($info_texinfos);
2991 $output_rules .= file_contents ('texinfos',
2992 new Automake::Location,
2993 TEXICLEAN => $texiclean,
2994 'LOCAL-TEXIS' => !!$info_texinfos);
2998 # Handle any man pages.
2999 sub handle_man_pages
3001 reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
3003 # Find all the sections in use. We do this by first looking for
3004 # "standard" sections, and then looking for any additional
3005 # sections used in man_MANS.
3006 my (%sections, %vlist);
3007 # We handle nodist_ for uniformity. man pages aren't distributed
3008 # by default so it isn't actually very important.
3009 foreach my $pfx ('', 'dist_', 'nodist_')
3011 # Add more sections as needed.
3012 foreach my $section ('0'..'9', 'n', 'l')
3014 my $varname = $pfx . 'man' . $section . '_MANS';
3017 $sections{$section} = 1;
3018 $varname = '$(' . $varname . ')';
3019 $vlist{$varname} = 1;
3021 &push_dist_common ($varname)
3026 my $varname = $pfx . 'man_MANS';
3027 my $var = var ($varname);
3030 foreach ($var->value_as_list_recursive)
3032 # A page like `foo.1c' goes into man1dir.
3033 if (/\.([0-9a-z])([a-z]*)$/)
3039 $varname = '$(' . $varname . ')';
3040 $vlist{$varname} = 1;
3041 &push_dist_common ($varname)
3046 return unless %sections;
3048 # Now for each section, generate an install and uninstall rule.
3049 # Sort sections so output is deterministic.
3050 foreach my $section (sort keys %sections)
3052 $output_rules .= &file_contents ('mans',
3053 new Automake::Location,
3054 SECTION => $section);
3057 my @mans = sort keys %vlist;
3058 $output_vars .= file_contents ('mans-vars',
3059 new Automake::Location,
3062 push (@all, '$(MANS)')
3063 unless option 'no-installman';
3066 # Handle DATA variables.
3069 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3070 'data', 'sysconf', 'sharedstate', 'localstate',
3071 'pkgdata', 'lisp', 'noinst', 'check');
3079 if (var ('SUBDIRS'))
3081 $output_rules .= ("tags-recursive:\n"
3082 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3083 # Never fail here if a subdir fails; it
3085 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3086 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3088 push (@tag_deps, 'tags-recursive');
3089 &depend ('.PHONY', 'tags-recursive');
3091 $output_rules .= ("ctags-recursive:\n"
3092 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3093 # Never fail here if a subdir fails; it
3095 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3096 . " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
3098 push (@ctag_deps, 'ctags-recursive');
3099 &depend ('.PHONY', 'ctags-recursive');
3102 if (&saw_sources_p (1)
3103 || var ('ETAGS_ARGS')
3107 foreach my $spec (@config_headers)
3109 my ($out, @ins) = split_config_file_spec ($spec);
3110 foreach my $in (@ins)
3112 # If the config header source is in this directory,
3114 push @config, basename ($in)
3115 if $relative_dir eq dirname ($in);
3118 $output_rules .= &file_contents ('tags',
3119 new Automake::Location,
3120 CONFIG => "@config",
3121 TAGSDIRS => "@tag_deps",
3122 CTAGSDIRS => "@ctag_deps");
3124 set_seen 'TAGS_DEPENDENCIES';
3126 elsif (reject_var ('TAGS_DEPENDENCIES',
3127 "doesn't make sense to define `TAGS_DEPENDENCIES'"
3128 . "without\nsources or `ETAGS_ARGS'"))
3133 # Every Makefile must define some sort of TAGS rule.
3134 # Otherwise, it would be possible for a top-level "make TAGS"
3135 # to fail because some subdirectory failed.
3136 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3138 $output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
3142 # Handle multilib support.
3145 if ($seen_multilib && $relative_dir eq '.')
3147 $output_rules .= &file_contents ('multilib', new Automake::Location);
3148 push (@all, 'all-multi');
3154 # &for_dist_common ($A, $B)
3155 # -------------------------
3156 # Subroutine for &handle_dist: sort files to dist.
3158 # We put README first because it then becomes easier to make a
3159 # Usenet-compliant shar file (in these, README must be first).
3161 # FIXME: do more ordering of files here.
3176 # Handle 'dist' target.
3179 return if option 'no-dist';
3181 # At least one of the archive formats must be enabled.
3182 if ($relative_dir eq '.')
3184 my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
3185 $archive_defined ||=
3186 grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
3187 error (option 'no-dist-gzip',
3188 "no-dist-gzip specified but no dist-* specified, "
3189 . "at least one archive format must be enabled")
3190 unless $archive_defined;
3193 # Look for common files that should be included in distribution.
3194 # If the aux dir is set, and it does not have a Makefile.am, then
3195 # we check for these files there as well.
3198 if ($relative_dir eq '.'
3199 && $config_aux_dir_set_in_configure_in)
3201 ($auxdir = $config_aux_dir) =~ s,^\$\(top_srcdir\)/,,;
3202 if (! &is_make_dir ($auxdir))
3207 foreach my $cfile (@common_files)
3209 if (-f ($relative_dir . "/" . $cfile)
3210 # The file might be absent, but if it can be built it's ok.
3213 &push_dist_common ($cfile);
3216 # Don't use `elsif' here because a file might meaningfully
3217 # appear in both directories.
3218 if ($check_aux && -f ($auxdir . '/' . $cfile))
3220 &push_dist_common ($auxdir . '/' . $cfile);
3224 # We might copy elements from $configure_dist_common to
3225 # %dist_common if we think we need to. If the file appears in our
3226 # directory, we would have discovered it already, so we don't
3227 # check that. But if the file is in a subdir without a Makefile,
3228 # we want to distribute it here if we are doing `.'. Ugly!
3229 if ($relative_dir eq '.')
3231 foreach my $file (split (' ' , $configure_dist_common))
3233 push_dist_common ($file)
3234 unless is_make_dir (dirname ($file));
3238 # Files to distributed. Don't use ->value_as_list_recursive
3239 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3240 my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
3241 @dist_common = uniq (sort for_dist_common (@dist_common));
3242 variable_delete 'DIST_COMMON';
3243 define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
3245 # Now that we've processed DIST_COMMON, disallow further attempts
3247 $handle_dist_run = 1;
3249 # Scan EXTRA_DIST to see if we need to distribute anything from a
3250 # subdir. If so, add it to the list. I didn't want to do this
3251 # originally, but there were so many requests that I finally
3253 my $extra_dist = var ('EXTRA_DIST');
3256 # FIXME: This should be fixed to work with conditions. That
3257 # will require only making the entries in %dist_dirs under the
3258 # appropriate condition. This is meaningful if the nature of
3259 # the distribution should depend upon the configure options
3261 foreach ($extra_dist->value_as_list_recursive)
3264 next unless s,/+[^/]+$,,;
3270 # We have to check DIST_COMMON for extra directories in case the
3271 # user put a source used in AC_OUTPUT into a subdir.
3272 my $topsrcdir = backname ($relative_dir);
3273 foreach (rvar ('DIST_COMMON')->value_as_list_recursive)
3276 s/\$\(top_srcdir\)/$topsrcdir/;
3278 # Strip any leading `./'.
3280 next unless s,/+[^/]+$,,;
3285 # Rule to check whether a distribution is viable.
3286 my %transform = ('DISTCHECK-HOOK' => !! rule 'distcheck-hook',
3287 'GETTEXT' => $seen_gettext && !$seen_gettext_external);
3289 # Prepend $(distdir) to each directory given.
3290 my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
3291 $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
3293 # If we have SUBDIRS, create all dist subdirectories and do
3295 my $subdirs = var ('SUBDIRS');
3298 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3299 # to all possible directories, and use it. If DIST_SUBDIRS is
3300 # defined, just use it.
3301 my $dist_subdir_name;
3302 # Note that we check DIST_SUBDIRS first on purpose, so that
3303 # we don't call has_conditional_contents for now reason.
3304 # (In the past one project used so many conditional subdirectories
3305 # that calling has_conditional_contents on SUBDIRS caused
3306 # automake to grow to 150Mb -- this should not happen with
3307 # the current implementation of has_conditional_contents,
3308 # but it's more efficient to avoid the call anyway.)
3309 if (var ('DIST_SUBDIRS'))
3311 $dist_subdir_name = 'DIST_SUBDIRS';
3313 elsif ($subdirs->has_conditional_contents)
3315 $dist_subdir_name = 'DIST_SUBDIRS';
3316 define_pretty_variable
3317 ('DIST_SUBDIRS', TRUE, INTERNAL,
3318 uniq ($subdirs->value_as_list_recursive));
3322 $dist_subdir_name = 'SUBDIRS';
3323 # We always define this because that is what `distclean'
3325 define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
3329 $transform{'DIST_SUBDIR_NAME'} = $dist_subdir_name;
3332 # If the target `dist-hook' exists, make sure it is run. This
3333 # allows users to do random weird things to the distribution
3334 # before it is packaged up.
3335 push (@dist_targets, 'dist-hook')
3336 if rule 'dist-hook';
3337 $transform{'DIST-TARGETS'} = join(' ', @dist_targets);
3339 $output_rules .= &file_contents ('distdir',
3340 new Automake::Location,
3345 # &handle_subdirs ()
3346 # ------------------
3347 # Handle subdirectories.
3348 sub handle_subdirs ()
3350 my $subdirs = var ('SUBDIRS');
3354 my @subdirs = $subdirs->value_as_list_recursive;
3356 my $dsubdirs = var ('DIST_SUBDIRS');
3357 @dsubdirs = $dsubdirs->value_as_list_recursive
3360 # If an `obj/' directory exists, BSD make will enter it before
3361 # reading `Makefile'. Hence the `Makefile' in the current directory
3367 # % cat obj/Makefile
3373 # % pmake # BSD make
3376 msg_var ('portability', 'SUBDIRS',
3377 "naming a subdirectory `obj' causes troubles with BSD make")
3378 if grep ($_ eq 'obj', @subdirs);
3379 msg_var ('portability', 'DIST_SUBDIRS',
3380 "naming a subdirectory `obj' causes troubles with BSD make")
3381 if grep ($_ eq 'obj', @dsubdirs);
3383 # Make sure each directory mentioned in SUBDIRS actually exists.
3384 foreach my $dir (@subdirs)
3386 # Skip directories substituted by configure.
3387 next if $dir =~ /^\@.*\@$/;
3389 if (! -d $relative_dir . '/' . $dir)
3391 err_var ('SUBDIRS', "required directory $relative_dir/$dir "
3392 . "does not exist");
3396 err_var 'SUBDIRS', "directory should not contain `/'"
3400 $output_rules .= &file_contents ('subdirs', new Automake::Location);
3401 rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
3405 # ($REGEN, @DEPENDENCIES)
3408 # If aclocal.m4 creation is automated, return the list of its dependencies.
3409 sub scan_aclocal_m4 ()
3411 my $regen_aclocal = 0;
3413 set_seen 'CONFIG_STATUS_DEPENDENCIES';
3414 set_seen 'CONFIGURE_DEPENDENCIES';
3416 if (-f 'aclocal.m4')
3418 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
3420 my $aclocal = new Automake::XFile "< aclocal.m4";
3421 my $line = $aclocal->getline;
3422 $regen_aclocal = $line =~ 'generated automatically by aclocal';
3427 if (set_seen ('ACLOCAL_M4_SOURCES'))
3429 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3430 msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
3431 "`ACLOCAL_M4_SOURCES' is obsolete.\n"
3432 . "It should be safe to simply remove it.");
3435 # Note that it might be possible that aclocal.m4 doesn't exist but
3436 # should be auto-generated. This case probably isn't very
3439 return ($regen_aclocal, @ac_deps);
3444 # &prepend_srcdir (@INPUTS)
3445 # -------------------------
3446 # Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
3447 # if an input file has a directory part the same as the current
3448 # directory, then the directory part is simply replaced by $(srcdir).
3449 # But if the directory part is different, then $(top_srcdir) is
3451 sub prepend_srcdir (@)
3456 foreach my $single (@inputs)
3458 if (dirname ($single) eq $relative_dir)
3460 push (@newinputs, '$(srcdir)/' . basename ($single));
3464 push (@newinputs, '$(top_srcdir)/' . $single);
3471 # rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
3472 # ---------------------------------------------------
3473 # Compute a list of dependencies appropriate for the rebuild
3475 # AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
3476 # Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
3477 sub rewrite_inputs_into_dependencies ($@)
3479 my ($file, @inputs) = @_;
3484 if (exists $ac_config_files_location{$i})
3486 if (dirname ($i) eq $relative_dir)
3492 $i = '$(top_builddir)/' . $i;
3497 msg ('error', $ac_config_files_location{$file},
3498 "required file `$i' not found")
3499 unless exists $output_files{$i} || -f $i;
3500 ($i) = prepend_srcdir ($i);
3501 push_dist_common ($i);
3510 # &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
3511 # ------------------------------------------------------------------
3512 # Handle remaking and configure stuff.
3513 # We need the name of the input file, to do proper remaking rules.
3514 sub handle_configure ($$$@)
3516 my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
3518 prog_error 'empty @inputs'
3521 my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
3523 my $rel_makefile = basename $makefile;
3525 my $colon_infile = ':' . join (':', @inputs);
3526 $colon_infile = '' if $colon_infile eq ":$makefile.in";
3527 my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
3528 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
3529 define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
3530 @configure_deps, @aclocal_m4_deps,
3531 '$(top_srcdir)/' . $configure_ac);
3532 my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
3533 push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
3534 define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
3537 $output_rules .= file_contents
3539 new Automake::Location,
3540 MAKEFILE => $rel_makefile,
3541 'MAKEFILE-DEPS' => "@rewritten",
3542 'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
3543 'MAKEFILE-IN' => $rel_makefile_in,
3544 'MAKEFILE-IN-DEPS' => "@include_stack",
3545 'MAKEFILE-AM' => $rel_makefile_am,
3546 STRICTNESS => global_option 'cygnus'
3547 ? 'cygnus' : $strictness_name,
3548 'USE-DEPS' => global_option 'no-dependencies'
3549 ? ' --ignore-deps' : '',
3550 'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
3551 'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
3553 if ($relative_dir eq '.')
3555 &push_dist_common ('acconfig.h')
3559 # If we have a configure header, require it.
3561 my @distclean_config;
3562 foreach my $spec (@config_headers)
3565 # $CONFIG_H_PATH: config.h from top level.
3566 my ($config_h_path, @ins) = split_config_file_spec ($spec);
3567 my $config_h_dir = dirname ($config_h_path);
3569 # If the header is in the current directory we want to build
3570 # the header here. Otherwise, if we're at the topmost
3571 # directory and the header's directory doesn't have a
3572 # Makefile, then we also want to build the header.
3573 if ($relative_dir eq $config_h_dir
3574 || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
3576 my ($cn_sans_dir, $stamp_dir);
3577 if ($relative_dir eq $config_h_dir)
3579 $cn_sans_dir = basename ($config_h_path);
3584 $cn_sans_dir = $config_h_path;
3585 if ($config_h_dir eq '.')
3591 $stamp_dir = $config_h_dir . '/';
3595 # Distribute all inputs.
3598 error $config_header_location, "required file `$in' not found"
3600 push_dist_common (prepend_srcdir ($in));
3602 @ins = prepend_srcdir (@ins);
3604 # Header defined and in this directory.
3606 if (-f $config_h_path . '.top')
3608 push (@files, "$cn_sans_dir.top");
3610 if (-f $config_h_path . '.bot')
3612 push (@files, "$cn_sans_dir.bot");
3615 push_dist_common (@files);
3617 # For now, acconfig.h can only appear in the top srcdir.
3618 if (-f 'acconfig.h')
3620 push (@files, '$(top_srcdir)/acconfig.h');
3623 my $stamp = "${stamp_dir}stamp-h${hdr_index}";
3625 file_contents ('remake-hdr',
3626 new Automake::Location,
3628 CONFIG_H => $cn_sans_dir,
3629 CONFIG_HIN => $ins[0],
3630 CONFIG_H_DEPS => "@ins",
3631 CONFIG_H_PATH => $config_h_path,
3632 FIRST_CONFIG_HIN => ($hdr_index == 1),
3635 push @distclean_config, $cn_sans_dir, $stamp;
3639 $output_rules .= file_contents ('clean-hdr',
3640 new Automake::Location,
3641 FILES => "@distclean_config")
3642 if @distclean_config;
3644 # Distribute and define mkinstalldirs only if it is already present
3645 # in the package, for backward compatibility (some people my still
3646 # use $(mkinstalldirs)).
3647 my $mkidpath = $config_aux_path[0] . '/mkinstalldirs';
3650 # Use require_file so that any existingscript gets updated
3651 # by --force-missing.
3652 require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
3653 define_variable ('mkinstalldirs',
3654 "\$(SHELL) $config_aux_dir/mkinstalldirs", INTERNAL);
3658 define_variable ('mkinstalldirs', '$(mkdir_p)', INTERNAL);
3661 reject_var ('CONFIG_HEADER',
3662 "`CONFIG_HEADER' is an anachronism; now determined "
3663 . "automatically\nfrom `$configure_ac'");
3666 foreach my $spec (@config_headers)
3668 my ($out, @ins) = split_config_file_spec ($spec);
3669 # Generate CONFIG_HEADER define.
3670 if ($relative_dir eq dirname ($out))
3672 push @config_h, basename ($out);
3676 push @config_h, "\$(top_builddir)/$out";
3679 define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
3682 # Now look for other files in this directory which must be remade
3683 # by config.status, and generate rules for them.
3684 my @actual_other_files = ();
3685 foreach my $lfile (@other_input_files)
3689 if ($lfile =~ /^([^:]*):(.*)$/)
3691 # This is the ":" syntax of AC_OUTPUT.
3693 @inputs = split (':', $2);
3699 @inputs = $file . '.in';
3702 # Automake files should not be stored in here, but in %MAKE_LIST.
3703 prog_error ("$lfile in \@other_input_files\n"
3704 . "\@other_input_files = (@other_input_files)")
3705 if -f $file . '.am';
3707 my $local = basename ($file);
3709 # Make sure the dist directory for each input file is created.
3710 # We only have to do this at the topmost level though. This
3711 # is a bit ugly but it easier than spreading out the logic,
3712 # especially in cases like AC_OUTPUT(foo/out:bar/in), where
3713 # there is no Makefile in bar/.
3714 if ($relative_dir eq '.')
3718 $dist_dirs{dirname ($_)} = 1;
3722 # We skip files that aren't in this directory. However, if
3723 # the file's directory does not have a Makefile, and we are
3724 # currently doing `.', then we create a rule to rebuild the
3725 # file in the subdir.
3726 my $fd = dirname ($file);
3727 if ($fd ne $relative_dir)
3729 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
3739 my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
3741 $output_rules .= ($local . ': '
3742 . '$(top_builddir)/config.status '
3743 . "@rewritten_inputs\n"
3745 . 'cd $(top_builddir) && '
3746 . '$(SHELL) ./config.status '
3747 . ($relative_dir eq '.' ? '' : '$(subdir)/')
3750 push (@actual_other_files, $local);
3753 foreach my $struct (@config_links)
3755 my ($spec, $where) = @$struct;
3756 my ($link, $file) = split /:/, $spec;
3758 # We skip links that aren't in this directory. However, if
3759 # the link's directory does not have a Makefile, and we are
3760 # currently doing `.', then we add the link to CONFIG_CLEAN_FILES
3761 # in `.'s Makefile.in.
3762 my $local = basename ($link);
3763 my $fd = dirname ($link);
3764 if ($fd ne $relative_dir)
3766 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
3776 push @actual_other_files, $local if $local;
3778 $local = basename ($file);
3779 $fd = dirname ($file);
3781 # Make sure the dist directory for each input file is created.
3782 # We only have to do this at the topmost level though.
3783 if ($relative_dir eq '.')
3785 $dist_dirs{$fd} = 1;
3788 # We skip files that aren't in this directory. However, if
3789 # the files's directory does not have a Makefile, and we are
3790 # currently doing `.', then we require the file from `.'.
3791 if ($fd ne $relative_dir)
3793 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
3803 # Require all input files.
3804 require_file ($where, FOREIGN, $local);
3807 # These files get removed by "make distclean".
3808 define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
3809 @actual_other_files);
3815 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
3816 'oldinclude', 'pkginclude',
3820 next unless $_->[1] =~ /\..*$/;
3821 &saw_extension ($&);
3827 return if ! $seen_gettext || $relative_dir ne '.';
3829 my $subdirs = var 'SUBDIRS';
3833 err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
3837 # Perform some sanity checks to help users get the right setup.
3838 # We disable these tests when po/ doesn't exist in order not to disallow
3839 # unusual gettext setups.
3844 # | 1) If a package doesn't have a directory po/ at top level, it
3845 # | will likely have multiple po/ directories in subpackages.
3847 # | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
3848 # | is used without 'external'. It is also useful to warn for the
3849 # | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
3850 # | warnings apply only to the usual layout of packages, therefore
3851 # | they should both be disabled if no po/ directory is found at
3856 my @subdirs = $subdirs->value_as_list_recursive;
3858 msg_var ('syntax', $subdirs,
3859 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
3860 if ! grep ($_ eq 'po', @subdirs);
3862 # intl/ is not required when AM_GNU_GETTEXT is called with
3863 # the `external' option.
3864 msg_var ('syntax', $subdirs,
3865 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
3866 if (! $seen_gettext_external
3867 && ! grep ($_ eq 'intl', @subdirs));
3869 # intl/ should not be used with AM_GNU_GETTEXT([external])
3870 msg_var ('syntax', $subdirs,
3871 "`intl' should not be in SUBDIRS when "
3872 . "AM_GNU_GETTEXT([external]) is used")
3873 if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
3876 require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
3879 # Handle footer elements.
3882 # NOTE don't use define_pretty_variable here, because
3883 # $contents{...} is already defined.
3884 $output_vars .= 'SOURCES = ' . variable_value ('SOURCES') . "\n\n"
3885 if variable_value ('SOURCES');
3887 reject_rule ('.SUFFIXES',
3888 "use variable `SUFFIXES', not target `.SUFFIXES'");
3890 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
3891 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
3892 # anything else, by sticking it right after the default: target.
3893 $output_header .= ".SUFFIXES:\n";
3894 my $suffixes = var 'SUFFIXES';
3895 my @suffixes = Automake::Rule::suffixes;
3896 if (@suffixes || $suffixes)
3898 # Make sure SUFFIXES has unique elements. Sort them to ensure
3899 # the output remains consistent. However, $(SUFFIXES) is
3900 # always at the start of the list, unsorted. This is done
3901 # because make will choose rules depending on the ordering of
3902 # suffixes, and this lets the user have some control. Push
3903 # actual suffixes, and not $(SUFFIXES). Some versions of make
3904 # do not like variable substitutions on the .SUFFIXES line.
3905 my @user_suffixes = ($suffixes
3906 ? $suffixes->value_as_list_recursive : ());
3908 my %suffixes = map { $_ => 1 } @suffixes;
3909 delete @suffixes{@user_suffixes};
3911 $output_header .= (".SUFFIXES: "
3912 . join (' ', @user_suffixes, sort keys %suffixes)
3916 $output_trailer .= file_contents ('footer', new Automake::Location);
3920 # Generate `make install' rules.
3921 sub handle_install ()
3923 $output_rules .= &file_contents
3925 new Automake::Location,
3926 maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
3927 ? (" \$(BUILT_SOURCES)\n"
3928 . "\t\$(MAKE) \$(AM_MAKEFLAGS)")
3930 'installdirs-local' => (rule 'installdirs-local'
3931 ? ' installdirs-local' : ''),
3932 am__installdirs => variable_value ('am__installdirs') || '');
3936 # Deal with all and all-am.
3939 my ($makefile) = @_;
3943 # Put this at the beginning for the sake of non-GNU makes. This
3944 # is still wrong if these makes can run parallel jobs. But it is
3946 unshift (@all, basename ($makefile));
3948 foreach my $spec (@config_headers)
3950 my ($out, @ins) = split_config_file_spec ($spec);
3951 push (@all, basename ($out))
3952 if dirname ($out) eq $relative_dir;
3955 # Install `all' hooks.
3956 if (rule "all-local")
3958 push (@all, "all-local");
3959 &depend ('.PHONY', "all-local");
3962 &pretty_print_rule ("all-am:", "\t\t", @all);
3963 &depend ('.PHONY', 'all-am', 'all');
3968 my @local_headers = ();
3969 push @local_headers, '$(BUILT_SOURCES)'
3970 if var ('BUILT_SOURCES');
3971 foreach my $spec (@config_headers)
3973 my ($out, @ins) = split_config_file_spec ($spec);
3974 push @local_headers, basename ($out)
3975 if dirname ($out) eq $relative_dir;
3980 # We need to make sure config.h is built before we recurse.
3981 # We also want to make sure that built sources are built
3982 # before any ordinary `all' targets are run. We can't do this
3983 # by changing the order of dependencies to the "all" because
3984 # that breaks when using parallel makes. Instead we handle
3985 # things explicitly.
3986 $output_all .= ("all: @local_headers"
3988 . '$(MAKE) $(AM_MAKEFLAGS) '
3989 . (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
3994 $output_all .= "all: " . (var ('SUBDIRS')
3995 ? 'all-recursive' : 'all-am') . "\n\n";
4000 # &do_check_merge_target ()
4001 # -------------------------
4002 # Handle check merge target specially.
4003 sub do_check_merge_target ()
4005 if (rule 'check-local')
4007 # User defined local form of target. So include it.
4008 push @check_tests, 'check-local';
4009 depend '.PHONY', 'check-local';
4012 # In --cygnus mode, check doesn't depend on all.
4013 if (option 'cygnus')
4015 # Just run the local check rules.
4016 pretty_print_rule ('check-am:', "\t\t", @check);
4020 # The check target must depend on the local equivalent of
4021 # `all', to ensure all the primary targets are built. Then it
4022 # must build the local check rules.
4023 $output_rules .= "check-am: all-am\n";
4024 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4028 pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4032 depend '.PHONY', 'check', 'check-am';
4033 # Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
4034 $output_rules .= ("check: "
4035 . (var ('BUILT_SOURCES')
4036 ? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
4038 . (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
4042 # handle_clean ($MAKEFILE)
4043 # ------------------------
4044 # Handle all 'clean' targets.
4045 sub handle_clean ($)
4047 my ($makefile) = @_;
4049 # Clean the files listed in user variables if they exist.
4050 $clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
4051 if var ('MOSTLYCLEANFILES');
4052 $clean_files{'$(CLEANFILES)'} = CLEAN
4053 if var ('CLEANFILES');
4054 $clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
4055 if var ('DISTCLEANFILES');
4056 $clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
4057 if var ('MAINTAINERCLEANFILES');
4059 # Built sources are automatically removed by maintainer-clean.
4060 $clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
4061 if var ('BUILT_SOURCES');
4063 # Compute a list of "rm"s to run for each target.
4064 my %rms = (MOSTLY_CLEAN, [],
4067 MAINTAINER_CLEAN, []);
4069 foreach my $file (keys %clean_files)
4071 my $when = $clean_files{$file};
4072 prog_error 'invalid entry in %clean_files'
4073 unless exists $rms{$when};
4075 my $rm = "rm -f $file";
4076 # If file is a variable, make sure when don't call `rm -f' without args.
4077 $rm ="test -z \"$file\" || $rm"
4078 if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
4080 push @{$rms{$when}}, "\t-$rm\n";
4083 $output_rules .= &file_contents
4085 new Automake::Location,
4086 MOSTLYCLEAN_RMS => join ('', @{$rms{&MOSTLY_CLEAN}}),
4087 CLEAN_RMS => join ('', @{$rms{&CLEAN}}),
4088 DISTCLEAN_RMS => join ('', @{$rms{&DIST_CLEAN}}),
4089 MAINTAINER_CLEAN_RMS => join ('', @{$rms{&MAINTAINER_CLEAN}}),
4090 MAKEFILE => basename $makefile,
4095 # &target_cmp ($A, $B)
4096 # --------------------
4097 # Subroutine for &handle_factored_dependencies to let `.PHONY' be last.
4110 # &handle_factored_dependencies ()
4111 # --------------------------------
4112 # Handle everything related to gathered targets.
4113 sub handle_factored_dependencies
4116 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4117 'uninstall-exec-local', 'uninstall-exec-hook')
4120 $x =~ s/(data|exec)-//;
4121 reject_rule ($utarg, "use `$x', not `$utarg'");
4124 reject_rule ('install-local',
4125 "use `install-data-local' or `install-exec-local', "
4126 . "not `install-local'");
4128 reject_rule ('install-info-local',
4129 "`install-info-local' target defined but "
4130 . "`no-installinfo' option not in use")
4131 unless option 'no-installinfo';
4133 # Install the -local hooks.
4134 foreach (keys %dependencies)
4136 # Hooks are installed on the -am targets.
4138 if (rule "$_-local")
4140 depend ("$_-am", "$_-local");
4141 depend ('.PHONY', "$_-local");
4145 # Install the -hook hooks.
4146 # FIXME: Why not be as liberal as we are with -local hooks?
4147 foreach ('install-exec', 'install-data', 'uninstall')
4149 if (rule ("$_-hook"))
4151 $actions{"$_-am"} .=
4152 ("\t\@\$(NORMAL_INSTALL)\n"
4153 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4157 # All the required targets are phony.
4158 depend ('.PHONY', keys %required_targets);
4160 # Actually output gathered targets.
4161 foreach (sort target_cmp keys %dependencies)
4163 # If there is nothing about this guy, skip it.
4165 unless (@{$dependencies{$_}}
4167 || $required_targets{$_});
4169 # Define gathered targets in undefined conditions.
4170 # FIXME: Right now we must handle .PHONY as an exception,
4171 # because people write things like
4172 # .PHONY: myphonytarget
4173 # to append dependencies. This would not work if Automake
4174 # refrained from defining its own .PHONY target as it does
4175 # with other overridden targets.
4176 my @undefined_conds = (TRUE,);
4180 Automake::Rule::define ($_, 'internal',
4181 RULE_AUTOMAKE, TRUE, INTERNAL);
4183 my @uniq_deps = uniq (sort @{$dependencies{$_}});
4184 foreach my $cond (@undefined_conds)
4186 my $condstr = $cond->subst_string;
4187 &pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
4188 $output_rules .= $actions{$_} if defined $actions{$_};
4189 $output_rules .= "\n";
4195 # &handle_tests_dejagnu ()
4196 # ------------------------
4197 sub handle_tests_dejagnu
4199 push (@check_tests, 'check-DEJAGNU');
4200 $output_rules .= file_contents ('dejagnu', new Automake::Location);
4204 # Handle TESTS variable and other checks.
4207 if (option 'dejagnu')
4209 &handle_tests_dejagnu;
4213 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4215 reject_var ($c, "`$c' defined but `dejagnu' not in "
4216 . "`AUTOMAKE_OPTIONS'");
4222 push (@check_tests, 'check-TESTS');
4223 $output_rules .= &file_contents ('check', new Automake::Location);
4227 # Handle Emacs Lisp.
4228 sub handle_emacs_lisp
4230 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4233 return if ! @elfiles;
4235 # Generate .elc files.
4236 my @elcfiles = map { $_->[1] . 'c' } @elfiles;
4238 define_pretty_variable ('ELCFILES', TRUE, INTERNAL, @elcfiles);
4239 define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
4240 map { $_->[1] } @elfiles);
4242 # Do not depend on the build rules if ELCFILES is empty.
4243 # This is necessary because overriding ELCFILES= is a documented
4244 # idiom to disable byte-compilation.
4245 if (variable_value ('ELCFILES'))
4247 # It's important that all depends on elc-stamp so that
4248 # all .elc files get recompiled whenever a .el changes.
4249 # It's important that all depends on $(ELCFILES) so that
4250 # we can recover if any of them is deleted.
4251 push (@all, 'elc-stamp', '$(ELCFILES)');
4254 require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
4255 'EMACS', 'lispdir');
4256 require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
4257 &define_variable ('elisp_comp', $config_aux_dir . '/elisp-comp', INTERNAL);
4263 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4265 return if ! @pyfiles;
4267 require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
4268 require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
4269 &define_variable ('py_compile', $config_aux_dir . '/py-compile', INTERNAL);
4275 my @sourcelist = &am_install_var ('-candist',
4277 'java', 'noinst', 'check');
4278 return if ! @sourcelist;
4280 my @prefix = am_primary_prefixes ('JAVA', 1,
4281 'java', 'noinst', 'check');
4284 foreach my $curs (@prefix)
4287 if $curs eq 'EXTRA';
4289 err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
4295 push (@all, 'class' . $dir . '.stamp');
4299 # Handle some of the minor options.
4300 sub handle_minor_options
4302 if (option 'readme-alpha')
4304 if ($relative_dir eq '.')
4306 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4308 msg ('error-gnits', $package_version_location,
4309 "version `$package_version' doesn't follow " .
4312 if (defined $1 && -f 'README-alpha')
4314 # This means we have an alpha release. See
4315 # GNITS_VERSION_PATTERN for details.
4316 push_dist_common ('README-alpha');
4322 ################################################################
4324 # ($OUTPUT, @INPUTS)
4325 # &split_config_file_spec ($SPEC)
4326 # -------------------------------
4327 # Decode the Autoconf syntax for config files (files, headers, links
4329 sub split_config_file_spec ($)
4332 my ($output, @inputs) = split (/:/, $spec);
4334 push @inputs, "$output.in"
4337 return ($output, @inputs);
4341 # locate_am (@POSSIBLE_SOURCES)
4342 # -----------------------------
4343 # AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
4344 # This functions returns the first *.in file for which a *.am exists.
4345 # It returns undef otherwise.
4350 foreach my $file (@rest)
4352 if (($file =~ /^(.*)\.in$/) && -f "$1.am")
4363 # &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
4364 # ---------------------------------------------------
4365 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4367 sub scan_autoconf_config_files ($$)
4369 my ($where, $config_files) = @_;
4371 # Look at potential Makefile.am's.
4372 foreach (split ' ', $config_files)
4374 # Must skip empty string for Perl 4.
4375 next if $_ eq "\\" || $_ eq '';
4377 # Handle $local:$input syntax.
4378 my ($local, @rest) = split (/:/);
4379 @rest = ("$local.in",) unless @rest;
4380 my $input = locate_am @rest;
4383 # We have a file that automake should generate.
4384 $make_list{$input} = join (':', ($local, @rest));
4388 # We have a file that automake should cause to be
4389 # rebuilt, but shouldn't generate itself.
4390 push (@other_input_files, $_);
4392 $ac_config_files_location{$local} = $where;
4397 # &scan_autoconf_traces ($FILENAME)
4398 # ---------------------------------
4399 sub scan_autoconf_traces ($)
4401 my ($filename) = @_;
4403 # Macros to trace, with their minimal number of arguments.
4405 AC_CANONICAL_HOST => 0,
4406 AC_CANONICAL_SYSTEM => 0,
4407 AC_CONFIG_AUX_DIR => 1,
4408 AC_CONFIG_FILES => 1,
4409 AC_CONFIG_HEADERS => 1,
4410 AC_CONFIG_LINKS => 1,
4414 AM_AUTOMAKE_VERSION => 1,
4415 AM_CONDITIONAL => 2,
4416 AM_ENABLE_MULTILIB => 0,
4417 AM_GNU_GETTEXT => 0,
4418 AM_INIT_AUTOMAKE => 0,
4419 AM_MAINTAINER_MODE => 0,
4420 AM_PROG_CC_C_O => 0,
4426 my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
4428 # Use a separator unlikely to be used, not `:', the default, which
4429 # has a precise meaning for AC_CONFIG_FILES and so on.
4430 $traces .= join (' ',
4431 map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
4434 my $tracefh = new Automake::XFile ("$traces $filename |");
4435 verb "reading $traces";
4437 while ($_ = $tracefh->getline)
4440 my ($here, @args) = split /::/;
4441 my $where = new Automake::Location $here;
4442 my $macro = $args[0];
4444 prog_error ("unrequested trace `$macro'")
4445 unless exists $traced{$macro};
4447 # Skip and diagnose malformed calls.
4448 if ($#args < $traced{$macro})
4450 msg ('syntax', $where, "not enough arguments for $macro");
4454 # Alphabetical ordering please.
4455 if ($macro eq 'AC_CANONICAL_HOST')
4457 if (! $seen_canonical)
4459 $seen_canonical = AC_CANONICAL_HOST;
4460 $canonical_location = $where;
4463 elsif ($macro eq 'AC_CANONICAL_SYSTEM')
4465 $seen_canonical = AC_CANONICAL_SYSTEM;
4466 $canonical_location = $where;
4468 elsif ($macro eq 'AC_CONFIG_AUX_DIR')
4470 @config_aux_path = $args[1];
4471 $config_aux_dir_set_in_configure_in = 1;
4473 elsif ($macro eq 'AC_CONFIG_FILES')
4475 # Look at potential Makefile.am's.
4476 scan_autoconf_config_files ($where, $args[1]);
4478 elsif ($macro eq 'AC_CONFIG_HEADERS')
4480 $config_header_location = $where;
4481 push @config_headers, split (' ', $args[1]);
4483 elsif ($macro eq 'AC_CONFIG_LINKS')
4485 push @config_links, map { [$_, $where] } split (' ', $args[1]);
4487 elsif ($macro eq 'AC_INIT')
4489 if (defined $args[2])
4491 $package_version = $args[2];
4492 $package_version_location = $where;
4495 elsif ($macro eq 'AC_LIBSOURCE')
4497 $libsources{$args[1]} = $here;
4499 elsif ($macro eq 'AC_SUBST')
4501 # Just check for alphanumeric in AC_SUBST. If you do
4502 # AC_SUBST(5), then too bad.
4503 $configure_vars{$args[1]} = $where
4504 if $args[1] =~ /^\w+$/;
4506 elsif ($macro eq 'AM_AUTOMAKE_VERSION')
4509 "version mismatch. This is Automake $VERSION,\n" .
4510 "but the definition used by this AM_INIT_AUTOMAKE\n" .
4511 "comes from Automake $args[1]. You should recreate\n" .
4512 "aclocal.m4 with aclocal and run automake again.\n",
4513 # $? = 63 is used to indicate version mismatch to missing.
4515 if $VERSION ne $args[1];
4517 $seen_automake_version = 1;
4519 elsif ($macro eq 'AM_CONDITIONAL')
4521 $configure_cond{$args[1]} = $where;
4523 elsif ($macro eq 'AM_ENABLE_MULTILIB')
4525 $seen_multilib = $where;
4527 elsif ($macro eq 'AM_GNU_GETTEXT')
4529 $seen_gettext = $where;
4530 $ac_gettext_location = $where;
4531 $seen_gettext_external = grep ($_ eq 'external', @args);
4533 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4535 $seen_init_automake = $where;
4536 if (defined $args[2])
4538 $package_version = $args[2];
4539 $package_version_location = $where;
4541 elsif (defined $args[1])
4544 if (process_global_option_list ($where,
4545 split (' ', $args[1])));
4548 elsif ($macro eq 'AM_MAINTAINER_MODE')
4550 $seen_maint_mode = $where;
4552 elsif ($macro eq 'AM_PROG_CC_C_O')
4554 $seen_cc_c_o = $where;
4556 elsif ($macro eq 'm4_include'
4557 || $macro eq 'm4_sinclude'
4558 || $macro eq 'sinclude')
4560 # Some modified versions of Autoconf don't use
4561 # forzen files. Consequently it's possible that we see all
4562 # m4_include's performed during Autoconf's startup.
4563 # Obviously we don't want to distribute Autoconf's files
4564 # so we skip absolute filenames here.
4565 push @configure_deps, '$(top_srcdir)/' . $args[1]
4566 unless $here =~ m,^(?:\w:)?[\\/],;
4567 # Keep track of the greatest timestamp.
4570 my $mtime = mtime $args[1];
4571 $configure_deps_greatest_timestamp = $mtime
4572 if $mtime > $configure_deps_greatest_timestamp;
4581 # &scan_autoconf_files ()
4582 # -----------------------
4583 # Check whether we use `configure.ac' or `configure.in'.
4584 # Scan it (and possibly `aclocal.m4') for interesting things.
4585 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
4586 sub scan_autoconf_files ()
4588 # Reinitialize libsources here. This isn't really necessary,
4589 # since we currently assume there is only one configure.ac. But
4590 # that won't always be the case.
4593 # Keep track of the youngest configure dependency.
4594 $configure_deps_greatest_timestamp = mtime $configure_ac;
4595 if (-e 'aclocal.m4')
4597 my $mtime = mtime 'aclocal.m4';
4598 $configure_deps_greatest_timestamp = $mtime
4599 if $mtime > $configure_deps_greatest_timestamp;
4602 scan_autoconf_traces ($configure_ac);
4604 @configure_input_files = sort keys %make_list;
4605 # Set input and output files if not specified by user.
4608 @input_files = @configure_input_files;
4609 %output_files = %make_list;
4613 if (! $seen_init_automake)
4615 err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
4616 . "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
4617 . "\nthat aclocal.m4 is present in the top-level directory,\n"
4618 . "and that aclocal.m4 was recently regenerated "
4619 . "(using aclocal).");
4623 if (! $seen_automake_version)
4625 if (-f 'aclocal.m4')
4627 error ($seen_init_automake,
4628 "your implementation of AM_INIT_AUTOMAKE comes from " .
4629 "an\nold Automake version. You should recreate " .
4630 "aclocal.m4\nwith aclocal and run automake again.\n",
4631 # $? = 63 is used to indicate version mismatch to missing.
4636 error ($seen_init_automake,
4637 "no proper implementation of AM_INIT_AUTOMAKE was " .
4638 "found,\nprobably because aclocal.m4 is missing...\n" .
4639 "You should run aclocal to create this file, then\n" .
4640 "run automake again.\n");
4645 # Look for some files we need. Always check for these. This
4646 # check must be done for every run, even those where we are only
4647 # looking at a subdir Makefile. We must set relative_dir so that
4648 # the file-finding machinery works.
4649 # FIXME: Is this broken because it needs dynamic scopes.
4650 # My tests seems to show it's not the case.
4651 $relative_dir = '.';
4652 require_conf_file ($configure_ac, FOREIGN, 'install-sh', 'missing');
4653 err_am "`install.sh' is an anachronism; use `install-sh' instead"
4654 if -f $config_aux_path[0] . '/install.sh';
4656 # Preserve dist_common for later.
4657 $configure_dist_common = variable_value ('DIST_COMMON') || '';
4660 ################################################################
4662 # Set up for Cygnus mode.
4665 my $cygnus = option 'cygnus';
4666 return unless $cygnus;
4668 set_strictness ('foreign');
4669 set_option ('no-installinfo', $cygnus);
4670 set_option ('no-dependencies', $cygnus);
4671 set_option ('no-dist', $cygnus);
4673 err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
4674 if !$seen_maint_mode;
4677 # Do any extra checking for GNU standards.
4678 sub check_gnu_standards
4680 if ($relative_dir eq '.')
4682 # In top level (or only) directory.
4683 require_file ("$am_file.am", GNU,
4684 qw/INSTALL NEWS README AUTHORS ChangeLog/);
4686 # Accept one of these three licenses; default to COPYING.
4687 # Make sure we do not overwrite an existing license.
4689 foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
4697 require_file ("$am_file.am", GNU, 'COPYING')
4701 for my $opt ('no-installman', 'no-installinfo')
4703 msg ('error-gnu', option $opt,
4704 "option `$opt' disallowed by GNU standards")
4709 # Do any extra checking for GNITS standards.
4710 sub check_gnits_standards
4712 if ($relative_dir eq '.')
4714 # In top level (or only) directory.
4715 require_file ("$am_file.am", GNITS, 'THANKS');
4719 ################################################################
4721 # Functions to handle files of each language.
4723 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
4724 # simple formula: Return value is LANG_SUBDIR if the resulting object
4725 # file should be in a subdir if the source file is, LANG_PROCESS if
4726 # file is to be dealt with, LANG_IGNORE otherwise.
4728 # Much of the actual processing is handled in
4729 # handle_single_transform_list. These functions exist so that
4730 # auxiliary information can be recorded for a later cleanup pass.
4731 # Note that the calls to these functions are computed, so don't bother
4732 # searching for their precise names in the source.
4734 # This is just a convenience function that can be used to determine
4735 # when a subdir object should be used.
4738 return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
4741 # Rewrite a single C source file.
4744 my ($directory, $base, $ext) = @_;
4746 if (option 'ansi2knr' && $base =~ /_$/)
4748 # FIXME: include line number in error.
4749 err_am "C source file `$base.c' would be deleted by ansi2knr rules";
4752 my $r = LANG_PROCESS;
4753 if (option 'subdir-objects')
4756 $base = $directory . '/' . $base
4757 unless $directory eq '.' || $directory eq '';
4759 err_am ("C objects in subdir but `AM_PROG_CC_C_O' "
4760 . "not in `$configure_ac'",
4761 uniq_scope => US_GLOBAL)
4762 unless $seen_cc_c_o;
4764 require_conf_file ("$am_file.am", FOREIGN, 'compile');
4766 # In this case we already have the directory information, so
4767 # don't add it again.
4768 $de_ansi_files{$base} = '';
4772 $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
4780 # Rewrite a single C++ source file.
4781 sub lang_cxx_rewrite
4783 return &lang_sub_obj;
4786 # Rewrite a single header file.
4787 sub lang_header_rewrite
4789 # Header files are simply ignored.
4793 # Rewrite a single yacc file.
4794 sub lang_yacc_rewrite
4796 my ($directory, $base, $ext) = @_;
4798 my $r = &lang_sub_obj;
4799 (my $newext = $ext) =~ tr/y/c/;
4800 return ($r, $newext);
4803 # Rewrite a single yacc++ file.
4804 sub lang_yaccxx_rewrite
4806 my ($directory, $base, $ext) = @_;
4808 my $r = &lang_sub_obj;
4809 (my $newext = $ext) =~ tr/y/c/;
4810 return ($r, $newext);
4813 # Rewrite a single lex file.
4814 sub lang_lex_rewrite
4816 my ($directory, $base, $ext) = @_;
4818 my $r = &lang_sub_obj;
4819 (my $newext = $ext) =~ tr/l/c/;
4820 return ($r, $newext);
4823 # Rewrite a single lex++ file.
4824 sub lang_lexxx_rewrite
4826 my ($directory, $base, $ext) = @_;
4828 my $r = &lang_sub_obj;
4829 (my $newext = $ext) =~ tr/l/c/;
4830 return ($r, $newext);
4833 # Rewrite a single assembly file.
4834 sub lang_asm_rewrite
4836 return &lang_sub_obj;
4839 # Rewrite a single Fortran 77 file.
4840 sub lang_f77_rewrite
4842 return LANG_PROCESS;
4845 # Rewrite a single preprocessed Fortran 77 file.
4846 sub lang_ppf77_rewrite
4848 return LANG_PROCESS;
4851 # Rewrite a single ratfor file.
4852 sub lang_ratfor_rewrite
4854 return LANG_PROCESS;
4857 # Rewrite a single Objective C file.
4858 sub lang_objc_rewrite
4860 return &lang_sub_obj;
4863 # Rewrite a single Java file.
4864 sub lang_java_rewrite
4869 # The lang_X_finish functions are called after all source file
4870 # processing is done. Each should handle defining rules for the
4871 # language, etc. A finish function is only called if a source file of
4872 # the appropriate type has been seen.
4876 # Push all libobjs files onto de_ansi_files. We actually only
4877 # push files which exist in the current directory, and which are
4878 # genuine source files.
4879 foreach my $file (keys %libsources)
4881 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
4883 $de_ansi_files{$1} = ''
4887 if (option 'ansi2knr' && keys %de_ansi_files)
4889 # Make all _.c files depend on their corresponding .c files.
4891 foreach my $base (sort keys %de_ansi_files)
4893 # Each _.c file must depend on ansi2knr; otherwise it
4894 # might be used in a parallel build before it is built.
4895 # We need to support files in the srcdir and in the build
4896 # dir (because these files might be auto-generated. But
4897 # we can't use $< -- some makes only define $< during a
4899 my $ansfile = $de_ansi_files{$base} . $base . '.c';
4900 $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
4901 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
4902 . '`if test -f $(srcdir)/' . $ansfile
4903 . '; then echo $(srcdir)/' . $ansfile
4904 . '; else echo ' . $ansfile . '; fi` '
4905 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
4906 . '| $(ANSI2KNR) > $@'
4907 # If ansi2knr fails then we shouldn't
4908 # create the _.c file
4909 . " || rm -f \$\@\n");
4910 push (@objects, $base . '_.$(OBJEXT)');
4911 push (@objects, $base . '_.lo')
4915 # Make all _.o (and _.lo) files depend on ansi2knr.
4916 # Use a sneaky little hack to make it print nicely.
4917 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
4921 # This is a yacc helper which is called whenever we have decided to
4922 # compile a yacc file.
4923 sub lang_yacc_target_hook
4925 my ($self, $aggregate, $output, $input) = @_;
4927 my $flag = $aggregate . "_YFLAGS";
4928 my $flagvar = var $flag;
4929 my $YFLAGSvar = var 'YFLAGS';
4930 if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
4931 || ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
4933 (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
4934 my $header = $output_base . '.h';
4936 # Found a `-d' that applies to the compilation of this file.
4937 # Add a dependency for the generated header file, and arrange
4938 # for that file to be included in the distribution.
4939 # FIXME: this fails for `nodist_*_SOURCES'.
4940 $output_rules .= ("${header}: $output\n"
4941 # Recover from removal of $header
4942 . "\t\@if test ! -f \$@; then \\\n"
4943 . "\t rm -f $output; \\\n"
4944 . "\t \$(MAKE) $output; \\\n"
4945 . "\telse :; fi\n");
4946 &push_dist_common ($header);
4947 # If the files are built in the build directory, then we want
4948 # to remove them with `make clean'. If they are in srcdir
4949 # they shouldn't be touched. However, we can't determine this
4950 # statically, and the GNU rules say that yacc/lex output files
4951 # should be removed by maintainer-clean. So that's what we
4953 $clean_files{$header} = MAINTAINER_CLEAN;
4955 # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
4956 # See the comment above for $HEADER.
4957 $clean_files{$output} = MAINTAINER_CLEAN;
4960 # This is a lex helper which is called whenever we have decided to
4961 # compile a lex file.
4962 sub lang_lex_target_hook
4964 my ($self, $aggregate, $output, $input) = @_;
4965 # If the files are built in the build directory, then we want to
4966 # remove them with `make clean'. If they are in srcdir they
4967 # shouldn't be touched. However, we can't determine this
4968 # statically, and the GNU rules say that yacc/lex output files
4969 # should be removed by maintainer-clean. So that's what we do.
4970 $clean_files{$output} = MAINTAINER_CLEAN;
4973 # This is a helper for both lex and yacc.
4974 sub yacc_lex_finish_helper
4976 return if defined $language_scratch{'lex-yacc-done'};
4977 $language_scratch{'lex-yacc-done'} = 1;
4979 # If there is more than one distinct yacc (resp lex) source file
4980 # in a given directory, then the `ylwrap' program is required to
4981 # allow parallel builds to work correctly. FIXME: for now, no
4983 require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
4984 if ($config_aux_dir_set_in_configure_in)
4986 &define_variable ('YLWRAP', $config_aux_dir . "/ylwrap", INTERNAL);
4990 &define_variable ('YLWRAP', '$(top_srcdir)/ylwrap', INTERNAL);
4994 sub lang_yacc_finish
4996 return if defined $language_scratch{'yacc-done'};
4997 $language_scratch{'yacc-done'} = 1;
4999 reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
5001 &yacc_lex_finish_helper
5002 if count_files_for_language ('yacc') > 1;
5008 return if defined $language_scratch{'lex-done'};
5009 $language_scratch{'lex-done'} = 1;
5011 &yacc_lex_finish_helper
5012 if count_files_for_language ('lex') > 1;
5016 # Given a hash table of linker names, pick the name that has the most
5017 # precedence. This is lame, but something has to have global
5018 # knowledge in order to eliminate the conflict. Add more linkers as
5024 foreach my $l (qw(GCJLINK CXXLINK F77LINK OBJCLINK))
5026 return $l if defined $linkers{$l};
5031 # Called to indicate that an extension was used.
5035 if (! defined $extension_seen{$ext})
5037 $extension_seen{$ext} = 1;
5041 ++$extension_seen{$ext};
5045 # Return the number of files seen for a given language. Knows about
5046 # special cases we care about. FIXME: this is hideous. We need
5047 # something that involves real language objects. For instance yacc
5048 # and yaccxx could both derive from a common yacc class which would
5049 # know about the strange ylwrap requirement. (Or better yet we could
5050 # just not support legacy yacc!)
5051 sub count_files_for_language
5056 if ($name eq 'yacc' || $name eq 'yaccxx')
5058 @names = ('yacc', 'yaccxx');
5060 elsif ($name eq 'lex' || $name eq 'lexxx')
5062 @names = ('lex', 'lexxx');
5070 foreach $name (@names)
5072 my $lang = $languages{$name};
5073 foreach my $ext (@{$lang->extensions})
5075 $r += $extension_seen{$ext}
5076 if defined $extension_seen{$ext};
5083 # Called to ask whether source files have been seen . If HEADERS is 1,
5084 # headers can be included.
5089 # count all the sources
5091 foreach my $val (values %extension_seen)
5098 $count -= count_files_for_language ('header');
5105 # register_language (%ATTRIBUTE)
5106 # ------------------------------
5107 # Register a single language.
5108 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5109 sub register_language (%)
5115 unless defined $option{'ansi'};
5116 $option{'autodep'} = 'no'
5117 unless defined $option{'autodep'};
5118 $option{'linker'} = ''
5119 unless defined $option{'linker'};
5120 $option{'flags'} = []
5121 unless defined $option{'flags'};
5122 $option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
5123 unless defined $option{'output_extensions'};
5125 my $lang = new Language (%option);
5128 $extension_map{$_} = $lang->name foreach @{$lang->extensions};
5129 $languages{$lang->name} = $lang;
5131 # Update the pattern of known extensions.
5132 accept_extensions (@{$lang->extensions});
5134 # Upate the $suffix_rule map.
5135 foreach my $suffix (@{$lang->extensions})
5137 foreach my $dest (&{$lang->output_extensions} ($suffix))
5139 register_suffix_rule (INTERNAL, $suffix, $dest);
5144 # derive_suffix ($EXT, $OBJ)
5145 # --------------------------
5146 # This function is used to find a path from a user-specified suffix $EXT
5147 # to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
5148 sub derive_suffix ($$)
5150 my ($source_ext, $obj) = @_;
5152 while (! $extension_map{$source_ext}
5153 && $source_ext ne $obj
5154 && exists $suffix_rules->{$source_ext}
5155 && exists $suffix_rules->{$source_ext}{$obj})
5157 $source_ext = $suffix_rules->{$source_ext}{$obj}[0];
5164 ################################################################
5166 # Pretty-print something and append to output_rules.
5167 sub pretty_print_rule
5169 $output_rules .= &makefile_wrap (@_);
5173 ################################################################
5176 ## -------------------------------- ##
5177 ## Handling the conditional stack. ##
5178 ## -------------------------------- ##
5182 # make_conditional_string ($NEGATE, $COND)
5183 # ----------------------------------------
5184 sub make_conditional_string ($$)
5186 my ($negate, $cond) = @_;
5187 $cond = "${cond}_TRUE"
5188 unless $cond =~ /^TRUE|FALSE$/;
5189 $cond = Automake::Condition::conditional_negate ($cond)
5196 # cond_stack_if ($NEGATE, $COND, $WHERE)
5197 # --------------------------------------
5198 sub cond_stack_if ($$$)
5200 my ($negate, $cond, $where) = @_;
5202 error $where, "$cond does not appear in AM_CONDITIONAL"
5203 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5205 push (@cond_stack, make_conditional_string ($negate, $cond));
5207 return new Automake::Condition (@cond_stack);
5212 # cond_stack_else ($NEGATE, $COND, $WHERE)
5213 # ----------------------------------------
5214 sub cond_stack_else ($$$)
5216 my ($negate, $cond, $where) = @_;
5220 error $where, "else without if";
5224 $cond_stack[$#cond_stack] =
5225 Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
5227 # If $COND is given, check against it.
5230 $cond = make_conditional_string ($negate, $cond);
5232 error ($where, "else reminder ($negate$cond) incompatible with "
5233 . "current conditional: $cond_stack[$#cond_stack]")
5234 if $cond_stack[$#cond_stack] ne $cond;
5237 return new Automake::Condition (@cond_stack);
5242 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5243 # -----------------------------------------
5244 sub cond_stack_endif ($$$)
5246 my ($negate, $cond, $where) = @_;
5251 error $where, "endif without if";
5255 # If $COND is given, check against it.
5258 $cond = make_conditional_string ($negate, $cond);
5260 error ($where, "endif reminder ($negate$cond) incompatible with "
5261 . "current conditional: $cond_stack[$#cond_stack]")
5262 if $cond_stack[$#cond_stack] ne $cond;
5267 return new Automake::Condition (@cond_stack);
5274 ## ------------------------ ##
5275 ## Handling the variables. ##
5276 ## ------------------------ ##
5279 # &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
5280 # -----------------------------------------------------
5281 # Like define_variable, but the value is a list, and the variable may
5282 # be defined conditionally. The second argument is the Condition
5283 # under which the value should be defined; this should be the empty
5284 # string to define the variable unconditionally. The third argument
5285 # is a list holding the values to use for the variable. The value is
5286 # pretty printed in the output file.
5287 sub define_pretty_variable ($$$@)
5289 my ($var, $cond, $where, @value) = @_;
5291 if (! vardef ($var, $cond))
5293 Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
5294 '', $where, VAR_PRETTY);
5295 rvar ($var)->rdef ($cond)->set_seen;
5300 # define_variable ($VAR, $VALUE, $WHERE)
5301 # --------------------------------------
5302 # Define a new user variable VAR to VALUE, but only if not already defined.
5303 sub define_variable ($$$)
5305 my ($var, $value, $where) = @_;
5306 define_pretty_variable ($var, TRUE, $where, $value);
5310 # define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
5311 # -----------------------------------------------------------
5312 # Define the $VAR which content is the list of file names composed of
5313 # a @BASENAME and the $EXTENSION.
5314 sub define_files_variable ($\@$$)
5316 my ($var, $basename, $extension, $where) = @_;
5317 define_variable ($var,
5318 join (' ', map { "$_.$extension" } @$basename),
5323 # Like define_variable, but define a variable to be the configure
5324 # substitution by the same name.
5325 sub define_configure_variable ($)
5329 my $pretty = VAR_ASIS;
5330 my $owner = VAR_CONFIGURE;
5332 # Do not output the ANSI2KNR configure variable -- we AC_SUBST
5333 # it in protos.m4, but later redefine it elsewhere. This is
5334 # pretty hacky. We also don't output AMDEPBACKSLASH: it might
5335 # be subst'd by `\', which certainly would not be appreciated by
5337 if ($var eq 'ANSI2KNR' || $var eq 'AMDEPBACKSLASH')
5339 $pretty = VAR_SILENT;
5340 $owner = VAR_AUTOMAKE;
5343 Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
5344 '', $configure_vars{$var}, $pretty);
5348 # define_compiler_variable ($LANG)
5349 # --------------------------------
5350 # Define a compiler variable. We also handle defining the `LT'
5351 # version of the command when using libtool.
5352 sub define_compiler_variable ($)
5356 my ($var, $value) = ($lang->compiler, $lang->compile);
5357 &define_variable ($var, $value, INTERNAL);
5358 &define_variable ("LT$var", "\$(LIBTOOL) --mode=compile $value", INTERNAL)
5363 # define_linker_variable ($LANG)
5364 # ------------------------------
5365 # Define linker variables.
5366 sub define_linker_variable ($)
5370 my ($var, $value) = ($lang->lder, $lang->ld);
5372 &define_variable ($lang->lder, $lang->ld, INTERNAL);
5373 # CCLINK = $(CCLD) blah blah...
5374 &define_variable ($lang->linker,
5375 ((var ('LIBTOOL') ? '$(LIBTOOL) --mode=link ' : '')
5380 ################################################################
5382 # &check_trailing_slash ($WHERE, $LINE)
5383 # --------------------------------------
5384 # Return 1 iff $LINE ends with a slash.
5385 # Might modify $LINE.
5386 sub check_trailing_slash ($\$)
5388 my ($where, $line) = @_;
5390 # Ignore `##' lines.
5391 return 0 if $$line =~ /$IGNORE_PATTERN/o;
5393 # Catch and fix a common error.
5394 msg "syntax", $where, "whitespace following trailing backslash"
5395 if $$line =~ s/\\\s+\n$/\\\n/;
5397 return $$line =~ /\\$/;
5401 # &read_am_file ($AMFILE, $WHERE)
5402 # -------------------------------
5403 # Read Makefile.am and set up %contents. Simultaneously copy lines
5404 # from Makefile.am into $output_trailer, or define variables as
5405 # appropriate. NOTE we put rules in the trailer section. We want
5406 # user rules to come after our generated stuff.
5407 sub read_am_file ($$)
5409 my ($amfile, $where) = @_;
5411 my $am_file = new Automake::XFile ("< $amfile");
5412 verb "reading $amfile";
5414 # Keep track of the youngest output dependency.
5415 my $mtime = mtime $amfile;
5416 $output_deps_greatest_timestamp = $mtime
5417 if $mtime > $output_deps_greatest_timestamp;
5424 use constant IN_VAR_DEF => 0;
5425 use constant IN_RULE_DEF => 1;
5426 use constant IN_COMMENT => 2;
5427 my $prev_state = IN_RULE_DEF;
5429 while ($_ = $am_file->getline)
5431 $where->set ("$amfile:$.");
5432 if (/$IGNORE_PATTERN/o)
5434 # Merely delete comments beginning with two hashes.
5436 elsif (/$WHITE_PATTERN/o)
5438 error $where, "blank line following trailing backslash"
5440 # Stick a single white line before the incoming macro or rule.
5443 # Flush all comments seen so far.
5446 $output_vars .= $comment;
5450 elsif (/$COMMENT_PATTERN/o)
5452 # Stick comments before the incoming macro or rule. Make
5453 # sure a blank line precedes the first block of comments.
5454 $spacing = "\n" unless $blank;
5456 $comment .= $spacing . $_;
5458 $prev_state = IN_COMMENT;
5464 $saw_bk = check_trailing_slash ($where, $_);
5467 # We save the conditional stack on entry, and then check to make
5468 # sure it is the same on exit. This lets us conditionally include
5470 my @saved_cond_stack = @cond_stack;
5471 my $cond = new Automake::Condition (@cond_stack);
5473 my $last_var_name = '';
5474 my $last_var_type = '';
5475 my $last_var_value = '';
5477 # FIXME: shouldn't use $_ in this loop; it is too big.
5480 $where->set ("$amfile:$.");
5482 # Make sure the line is \n-terminated.
5486 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
5487 # used by users. @MAINT@ is an anachronism now.
5488 $_ =~ s/\@MAINT\@//g
5489 unless $seen_maint_mode;
5491 my $new_saw_bk = check_trailing_slash ($where, $_);
5493 if (/$IGNORE_PATTERN/o)
5495 # Merely delete comments beginning with two hashes.
5497 elsif (/$WHITE_PATTERN/o)
5499 # Stick a single white line before the incoming macro or rule.
5501 error $where, "blank line following trailing backslash"
5504 elsif (/$COMMENT_PATTERN/o)
5506 # Stick comments before the incoming macro or rule.
5507 $comment .= $spacing . $_;
5509 error $where, "comment following trailing backslash"
5510 if $saw_bk && $comment eq '';
5511 $prev_state = IN_COMMENT;
5515 if ($prev_state == IN_RULE_DEF)
5517 my $cond = new Automake::Condition @cond_stack;
5518 $output_trailer .= $cond->subst_string;
5519 $output_trailer .= $_;
5521 elsif ($prev_state == IN_COMMENT)
5523 # If the line doesn't start with a `#', add it.
5524 # We do this because a continued comment like
5528 # is not portable. BSD make doesn't honor
5529 # escaped newlines in comments.
5531 $comment .= $spacing . $_;
5533 else # $prev_state == IN_VAR_DEF
5535 $last_var_value .= ' '
5536 unless $last_var_value =~ /\s$/;
5537 $last_var_value .= $_;
5541 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
5542 $last_var_type, $cond,
5543 $last_var_value, $comment,
5544 $last_where, VAR_ASIS)
5546 $comment = $spacing = '';
5551 elsif (/$IF_PATTERN/o)
5553 $cond = cond_stack_if ($1, $2, $where);
5555 elsif (/$ELSE_PATTERN/o)
5557 $cond = cond_stack_else ($1, $2, $where);
5559 elsif (/$ENDIF_PATTERN/o)
5561 $cond = cond_stack_endif ($1, $2, $where);
5564 elsif (/$RULE_PATTERN/o)
5567 $prev_state = IN_RULE_DEF;
5569 # For now we have to output all definitions of user rules
5570 # and can't diagnose duplicates (see the comment in
5571 # rule_define). So we go on and ignore the return value.
5572 Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
5574 check_variable_expansions ($_, $where);
5576 $output_trailer .= $comment . $spacing;
5577 my $cond = new Automake::Condition @cond_stack;
5578 $output_trailer .= $cond->subst_string;
5579 $output_trailer .= $_;
5580 $comment = $spacing = '';
5582 elsif (/$ASSIGNMENT_PATTERN/o)
5584 # Found a macro definition.
5585 $prev_state = IN_VAR_DEF;
5586 $last_var_name = $1;
5587 $last_var_type = $2;
5588 $last_var_value = $3;
5589 $last_where = $where->clone;
5590 if ($3 ne '' && substr ($3, -1) eq "\\")
5592 # We preserve the `\' because otherwise the long lines
5593 # that are generated will be truncated by broken
5595 $last_var_value = $3 . "\n";
5600 Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
5601 $last_var_type, $cond,
5602 $last_var_value, $comment,
5603 $last_where, VAR_ASIS)
5605 $comment = $spacing = '';
5608 elsif (/$INCLUDE_PATTERN/o)
5612 if ($path =~ s/^\$\(top_srcdir\)\///)
5614 push (@include_stack, "\$\(top_srcdir\)/$path");
5615 # Distribute any included file.
5617 # Always use the $(top_srcdir) prefix in DIST_COMMON,
5618 # otherwise OSF make will implicitly copy the included
5619 # file in the build tree during `make distdir' to satisfy
5621 # (subdircond2.test and subdircond3.test will fail.)
5622 push_dist_common ("\$\(top_srcdir\)/$path");
5626 $path =~ s/\$\(srcdir\)\///;
5627 push (@include_stack, "\$\(srcdir\)/$path");
5628 # Always use the $(srcdir) prefix in DIST_COMMON,
5629 # otherwise OSF make will implicitly copy the included
5630 # file in the build tree during `make distdir' to satisfy
5632 # (subdircond2.test and subdircond3.test will fail.)
5633 push_dist_common ("\$\(srcdir\)/$path");
5634 $path = $relative_dir . "/" . $path if $relative_dir ne '.';
5636 $where->push_context ("`$path' included from here");
5637 &read_am_file ($path, $where);
5638 $where->pop_context;
5642 # This isn't an error; it is probably a continued rule.
5643 # In fact, this is what we assume.
5644 $prev_state = IN_RULE_DEF;
5645 check_variable_expansions ($_, $where);
5646 $output_trailer .= $comment . $spacing;
5647 my $cond = new Automake::Condition @cond_stack;
5648 $output_trailer .= $cond->subst_string;
5649 $output_trailer .= $_;
5650 $comment = $spacing = '';
5651 error $where, "`#' comment at start of rule is unportable"
5652 if $_ =~ /^\t\s*\#/;
5655 $saw_bk = $new_saw_bk;
5656 $_ = $am_file->getline;
5659 $output_trailer .= $comment;
5661 error ($where, "trailing backslash on last line")
5664 error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
5665 : "too many conditionals closed in include file"))
5666 if "@saved_cond_stack" ne "@cond_stack";
5670 # define_standard_variables ()
5671 # ----------------------------
5672 # A helper for read_main_am_file which initializes configure variables
5673 # and variables from header-vars.am.
5674 sub define_standard_variables
5676 my $saved_output_vars = $output_vars;
5677 my ($comments, undef, $rules) =
5678 file_contents_internal (1, "$libdir/am/header-vars.am",
5679 new Automake::Location);
5681 foreach my $var (sort keys %configure_vars)
5683 &define_configure_variable ($var);
5686 $output_vars .= $comments . $rules;
5689 # Read main am file.
5690 sub read_main_am_file
5694 # This supports the strange variable tricks we are about to play.
5695 prog_error (macros_dump () . "variable defined before read_main_am_file")
5696 if (scalar (variables) > 0);
5698 # Generate copyright header for generated Makefile.in.
5699 # We do discard the output of predefined variables, handled below.
5700 $output_vars = ("# $in_file_name generated by automake "
5701 . $VERSION . " from $am_file_name.\n");
5702 $output_vars .= '# ' . subst ('configure_input') . "\n";
5703 $output_vars .= $gen_copyright;
5705 # We want to predefine as many variables as possible. This lets
5706 # the user set them with `+=' in Makefile.am.
5707 &define_standard_variables;
5709 # Read user file, which might override some of our values.
5710 &read_am_file ($amfile, new Automake::Location);
5715 ################################################################
5718 # &flatten ($STRING)
5719 # ------------------
5720 # Flatten the $STRING and return the result.
5735 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
5736 # ------------------------------------------
5737 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
5739 sub make_paragraphs ($%)
5741 my ($file, %transform) = @_;
5743 # Complete %transform with global options and make it a Perl
5746 "s/$IGNORE_PATTERN//gm;"
5747 . transform (%transform,
5748 'CYGNUS' => !! option 'cygnus',
5750 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
5752 'BZIP2' => !! option 'dist-bzip2',
5753 'COMPRESS' => !! option 'dist-tarZ',
5754 'GZIP' => ! option 'no-dist-gzip',
5755 'SHAR' => !! option 'dist-shar',
5756 'ZIP' => !! option 'dist-zip',
5758 'INSTALL-INFO' => ! option 'no-installinfo',
5759 'INSTALL-MAN' => ! option 'no-installman',
5760 'CK-NEWS' => !! option 'check-news',
5762 'SUBDIRS' => !! var ('SUBDIRS'),
5763 'TOPDIR' => backname ($relative_dir),
5764 'TOPDIR_P' => $relative_dir eq '.',
5766 'BUILD' => $seen_canonical == AC_CANONICAL_SYSTEM,
5767 'HOST' => $seen_canonical,
5768 'TARGET' => $seen_canonical == AC_CANONICAL_SYSTEM,
5770 'LIBTOOL' => !! var ('LIBTOOL'))
5771 # We don't need more than two consecutive new-lines.
5772 . 's/\n{3,}/\n\n/g';
5774 # Swallow the file and apply the COMMAND.
5775 my $fc_file = new Automake::XFile "< $file";
5777 verb "reading $file";
5778 my $saved_dollar_slash = $/;
5780 $_ = $fc_file->getline;
5781 $/ = $saved_dollar_slash;
5786 # Split at unescaped new lines.
5787 my @lines = split (/(?<!\\)\n/, $content);
5790 while (defined ($_ = shift @lines))
5792 my $paragraph = "$_";
5793 # If we are a rule, eat as long as we start with a tab.
5794 if (/$RULE_PATTERN/smo)
5796 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
5798 $paragraph .= "\n$_";
5800 unshift (@lines, $_);
5803 # If we are a comments, eat as much comments as you can.
5804 elsif (/$COMMENT_PATTERN/smo)
5806 while (defined ($_ = shift @lines)
5807 && $_ =~ /$COMMENT_PATTERN/smo)
5809 $paragraph .= "\n$_";
5811 unshift (@lines, $_);
5814 push @res, $paragraph;
5823 # ($COMMENT, $VARIABLES, $RULES)
5824 # &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
5825 # -------------------------------------------------------------
5826 # Return contents of a file from $libdir/am, automatically skipping
5827 # macros or rules which are already known. $IS_AM iff the caller is
5828 # reading an Automake file (as opposed to the user's Makefile.am).
5829 sub file_contents_internal ($$$%)
5831 my ($is_am, $file, $where, %transform) = @_;
5833 $where->set ($file);
5835 my $result_vars = '';
5836 my $result_rules = '';
5840 # The following flags are used to track rules spanning across
5841 # multiple paragraphs.
5842 my $is_rule = 0; # 1 if we are processing a rule.
5843 my $discard_rule = 0; # 1 if the current rule should not be output.
5845 # We save the conditional stack on entry, and then check to make
5846 # sure it is the same on exit. This lets us conditionally include
5848 my @saved_cond_stack = @cond_stack;
5849 my $cond = new Automake::Condition (@cond_stack);
5851 foreach (make_paragraphs ($file, %transform))
5853 # FIXME: no line number available.
5854 $where->set ($file);
5857 error $where, "blank line following trailing backslash:\n$_"
5859 error $where, "comment following trailing backslash:\n$_"
5865 # Stick empty line before the incoming macro or rule.
5868 elsif (/$COMMENT_PATTERN/mso)
5871 # Stick comments before the incoming macro or rule.
5875 # Handle inclusion of other files.
5876 elsif (/$INCLUDE_PATTERN/o)
5880 my $file = ($is_am ? "$libdir/am/" : '') . $1;
5881 $where->push_context ("`$file' included from here");
5883 my ($com, $vars, $rules)
5884 = file_contents_internal ($is_am, $file, $where, %transform);
5885 $where->pop_context;
5887 $result_vars .= $vars;
5888 $result_rules .= $rules;
5892 # Handling the conditionals.
5893 elsif (/$IF_PATTERN/o)
5895 $cond = cond_stack_if ($1, $2, $file);
5897 elsif (/$ELSE_PATTERN/o)
5899 $cond = cond_stack_else ($1, $2, $file);
5901 elsif (/$ENDIF_PATTERN/o)
5903 $cond = cond_stack_endif ($1, $2, $file);
5907 elsif (/$RULE_PATTERN/mso)
5911 # Separate relationship from optional actions: the first
5912 # `new-line tab" not preceded by backslash (continuation
5915 /^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
5916 my ($relationship, $actions) = ($1, $2 || '');
5918 # Separate targets from dependencies: the first colon.
5919 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
5920 my ($targets, $dependencies) = ($1, $2);
5921 # Remove the escaped new lines.
5922 # I don't know why, but I have to use a tmp $flat_deps.
5923 my $flat_deps = &flatten ($dependencies);
5924 my @deps = split (' ', $flat_deps);
5926 foreach (split (' ' , $targets))
5928 # FIXME: 1. We are not robust to people defining several targets
5929 # at once, only some of them being in %dependencies. The
5930 # actions from the targets in %dependencies are usually generated
5931 # from the content of %actions, but if some targets in $targets
5932 # are not in %dependencies the ELSE branch will output
5933 # a rule for all $targets (i.e. the targets which are both
5934 # in %dependencies and $targets will have two rules).
5936 # FIXME: 2. The logic here is not able to output a
5937 # multi-paragraph rule several time (e.g. for each condition
5938 # it is defined for) because it only knows the first paragraph.
5940 # FIXME: 3. We are not robust to people defining a subset
5941 # of a previously defined "multiple-target" rule. E.g.
5942 # `foo:' after `foo bar:'.
5944 # Output only if not in FALSE.
5945 if (defined $dependencies{$_} && $cond != FALSE)
5947 &depend ($_, @deps);
5950 $actions{$_} .= "\n$actions" if $actions;
5954 $actions{$_} = $actions;
5959 # Free-lance dependency. Output the rule for all the
5960 # targets instead of one by one.
5961 my @undefined_conds =
5962 Automake::Rule::define ($targets, $file,
5963 $is_am ? RULE_AUTOMAKE : RULE_USER,
5965 for my $undefined_cond (@undefined_conds)
5967 my $condparagraph = $paragraph;
5968 $condparagraph =~ s/^/$undefined_cond->subst_string/gme;
5969 $result_rules .= "$spacing$comment$condparagraph\n";
5971 if (scalar @undefined_conds == 0)
5973 # Remember to discard next paragraphs
5974 # if they belong to this rule.
5975 # (but see also FIXME: #2 above.)
5978 $comment = $spacing = '';
5984 elsif (/$ASSIGNMENT_PATTERN/mso)
5986 my ($var, $type, $val) = ($1, $2, $3);
5987 error $where, "variable `$var' with trailing backslash"
5992 Automake::Variable::define ($var,
5993 $is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
5994 $type, $cond, $val, $comment, $where,
5998 $comment = $spacing = '';
6002 # This isn't an error; it is probably some tokens which
6003 # configure is supposed to replace, such as `@SET-MAKE@',
6004 # or some part of a rule cut by an if/endif.
6005 if (! $cond->false && ! ($is_rule && $discard_rule))
6007 s/^/$cond->subst_string/gme;
6008 $result_rules .= "$spacing$comment$_\n";
6010 $comment = $spacing = '';
6014 error ($where, @cond_stack ?
6015 "unterminated conditionals: @cond_stack" :
6016 "too many conditionals closed in include file")
6017 if "@saved_cond_stack" ne "@cond_stack";
6019 return ($comment, $result_vars, $result_rules);
6024 # &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
6025 # ------------------------------------------------
6026 # Return contents of a file from $libdir/am, automatically skipping
6027 # macros or rules which are already known.
6028 sub file_contents ($$%)
6030 my ($basename, $where, %transform) = @_;
6031 my ($comments, $variables, $rules) =
6032 file_contents_internal (1, "$libdir/am/$basename.am", $where,
6034 return "$comments$variables$rules";
6039 # &transform (%PAIRS)
6040 # -------------------
6041 # For each ($TOKEN, $VAL) in %PAIRS produce a replacement expression
6042 # suitable for file_contents which:
6043 # - replaces %$TOKEN% with $VAL,
6044 # - enables/disables ?$TOKEN? and ?!$TOKEN?,
6045 # - replaces %?$TOKEN% with TRUE or FALSE.
6051 while (my ($token, $val) = each %pairs)
6053 $result .= "s/\Q%$token%\E/\Q$val\E/gm;";
6056 $result .= "s/\Q?$token?\E//gm;s/^.*\Q?!$token?\E.*\\n//gm;";
6057 $result .= "s/\Q%?$token%\E/TRUE/gm;";
6061 $result .= "s/\Q?!$token?\E//gm;s/^.*\Q?$token?\E.*\\n//gm;";
6062 $result .= "s/\Q%?$token%\E/FALSE/gm;";
6070 # &append_exeext ($MACRO)
6071 # -----------------------
6072 # Macro is an Automake magic macro which primary is PROGRAMS, e.g.
6073 # bin_PROGRAMS. Make sure these programs have $(EXEEXT) appended.
6074 sub append_exeext ($)
6078 prog_error "append_exeext ($macro)"
6079 unless $macro =~ /_PROGRAMS$/;
6081 transform_variable_recursively
6082 ($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
6084 my ($subvar, $val, $cond, $full_cond) = @_;
6085 # Append $(EXEEXT) unless the user did it already, or it's a
6087 $val .= '$(EXEEXT)' unless $val =~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/;
6094 # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
6095 # -----------------------------------------------------
6096 # Find all variable prefixes that are used for install directories. A
6097 # prefix `zar' qualifies iff:
6099 # * `zardir' is a variable.
6100 # * `zar_PRIMARY' is a variable.
6102 # As a side effect, it looks for misspellings. It is an error to have
6103 # a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
6104 # "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
6105 # of the same name (with "dir" appended) exists. For instance, if the
6106 # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
6107 # This is to provide a little extra flexibility in those cases which
6109 sub am_primary_prefixes ($$@)
6111 my ($primary, $can_dist, @prefixes) = @_;
6114 my %valid = map { $_ => 0 } @prefixes;
6115 $valid{'EXTRA'} = 0;
6116 foreach my $var (variables)
6118 # Automake is allowed to define variables that look like primaries
6119 # but which aren't. E.g. INSTALL_sh_DATA.
6120 # Autoconf can also define variables like INSTALL_DATA, so
6121 # ignore all configure variables (at least those which are not
6122 # redefined in Makefile.am).
6123 # FIXME: We should make sure that these variables are not
6124 # conditionally defined (or else adjust the condition below).
6125 my $def = $var->def (TRUE);
6126 next if $def && $def->owner != VAR_MAKEFILE;
6128 my $varname = $var->name;
6130 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_$primary$/)
6132 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
6133 if ($dist ne '' && ! $can_dist)
6136 "invalid variable `$varname': `dist' is forbidden");
6138 # Standard directories must be explicitly allowed.
6139 elsif (! defined $valid{$X} && exists $standard_prefix{$X})
6142 "`${X}dir' is not a legitimate directory " .
6145 # A not explicitly valid directory is allowed if Xdir is defined.
6146 elsif (! defined $valid{$X} &&
6147 $var->requires_variables ("`$varname' is used", "${X}dir"))
6149 # Nothing to do. Any error message has been output
6150 # by $var->requires_variables.
6154 # Ensure all extended prefixes are actually used.
6155 $valid{"$base$dist$X"} = 1;
6160 # Return only those which are actually defined.
6161 return sort grep { var ($_ . '_' . $primary) } keys %valid;
6165 # Handle `where_HOW' variable magic. Does all lookups, generates
6166 # install code, and possibly generates code to define the primary
6167 # variable. The first argument is the name of the .am file to munge,
6168 # the second argument is the primary variable (e.g. HEADERS), and all
6169 # subsequent arguments are possible installation locations.
6171 # Returns list of [$location, $value] pairs, where
6172 # $value's are the values in all where_HOW variable, and $location
6173 # there associated location (the place here their parent variables were
6176 # FIXME: this should be rewritten to be cleaner. It should be broken
6177 # up into multiple functions.
6179 # Usage is: am_install_var (OPTION..., file, HOW, where...)
6186 my $default_dist = 0;
6189 if ($args[0] eq '-noextra')
6193 elsif ($args[0] eq '-candist')
6197 elsif ($args[0] eq '-defaultdist')
6202 elsif ($args[0] !~ /^-/)
6209 my ($file, $primary, @prefix) = @args;
6211 # Now that configure substitutions are allowed in where_HOW
6212 # variables, it is an error to actually define the primary. We
6213 # allow `JAVA', as it is customarily used to mean the Java
6214 # interpreter. This is but one of several Java hacks. Similarly,
6215 # `PYTHON' is customarily used to mean the Python interpreter.
6216 reject_var $primary, "`$primary' is an anachronism"
6217 unless $primary eq 'JAVA' || $primary eq 'PYTHON';
6219 # Get the prefixes which are valid and actually used.
6220 @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
6222 # If a primary includes a configure substitution, then the EXTRA_
6223 # form is required. Otherwise we can't properly do our job.
6229 # True if the iteration is the first one. Used for instance to
6230 # output parts of the associated file only once.
6232 foreach my $X (@prefix)
6234 my $nodir_name = $X;
6235 my $one_name = $X . '_' . $primary;
6236 my $one_var = var $one_name;
6238 my $strip_subdir = 1;
6239 # If subdir prefix should be preserved, do so.
6240 if ($nodir_name =~ /^nobase_/)
6243 $nodir_name =~ s/^nobase_//;
6246 # If files should be distributed, do so.
6250 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
6251 || (! $default_dist && $nodir_name =~ /^dist_/));
6252 $nodir_name =~ s/^(dist|nodist)_//;
6256 # Use the location of the currently processed variable.
6257 # We are not processing a particular condition, so pick the first
6259 my $tmpcond = $one_var->conditions->one_cond;
6260 my $where = $one_var->rdef ($tmpcond)->location->clone;
6262 # Append actual contents of where_PRIMARY variable to
6263 # @result, skipping @substitutions@.
6264 foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
6266 my ($loc, $value) = @$locvals;
6267 # Skip configure substitutions.
6268 if ($value =~ /^\@.*\@$/)
6270 if ($nodir_name eq 'EXTRA')
6273 "`$one_name' contains configure substitution, "
6276 # Check here to make sure variables defined in
6277 # configure.ac do not imply that EXTRA_PRIMARY
6279 elsif (! defined $configure_vars{$one_name})
6281 $require_extra = $one_name
6287 push (@result, $locvals);
6290 # A blatant hack: we rewrite each _PROGRAMS primary to include
6292 append_exeext ($one_name)
6293 if $primary eq 'PROGRAMS';
6294 # "EXTRA" shouldn't be used when generating clean targets,
6295 # all, or install targets. We used to warn if EXTRA_FOO was
6296 # defined uselessly, but this was annoying.
6298 if $nodir_name eq 'EXTRA';
6300 if ($nodir_name eq 'check')
6302 push (@check, '$(' . $one_name . ')');
6306 push (@used, '$(' . $one_name . ')');
6309 # Is this to be installed?
6310 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
6312 # If so, with install-exec? (or install-data?).
6313 my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
6315 my $check_options_p = $install_p && !! option 'std-options';
6317 # Use the location of the currently processed variable as context.
6318 $where->push_context ("while processing `$one_name'");
6320 # Singular form of $PRIMARY.
6321 (my $one_primary = $primary) =~ s/S$//;
6322 $output_rules .= &file_contents ($file, $where,
6325 PRIMARY => $primary,
6326 ONE_PRIMARY => $one_primary,
6328 NDIR => $nodir_name,
6329 BASE => $strip_subdir,
6332 INSTALL => $install_p,
6334 'CK-OPTS' => $check_options_p);
6339 # The JAVA variable is used as the name of the Java interpreter.
6340 # The PYTHON variable is used as the name of the Python interpreter.
6341 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
6344 define_pretty_variable ($primary, TRUE, INTERNAL, @used);
6345 $output_vars .= "\n";
6348 err_var ($require_extra,
6349 "`$require_extra' contains configure substitution,\n"
6350 . "but `EXTRA_$primary' not defined")
6351 if ($require_extra && ! var ('EXTRA_' . $primary));
6353 # Push here because PRIMARY might be configure time determined.
6354 push (@all, '$(' . $primary . ')')
6355 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
6357 # Make the result unique. This lets the user use conditionals in
6358 # a natural way, but still lets us program lazily -- we don't have
6359 # to worry about handling a particular object more than once.
6360 # We will keep only one location per object.
6362 for my $pair (@result)
6364 my ($loc, $val) = @$pair;
6365 $result{$val} = $loc;
6367 my @l = sort keys %result;
6368 return map { [$result{$_}->clone, $_] } @l;
6372 ################################################################
6374 # Each key in this hash is the name of a directory holding a
6375 # Makefile.in. These variables are local to `is_make_dir'.
6377 my $make_dirs_set = 0;
6382 if (! $make_dirs_set)
6384 foreach my $iter (@configure_input_files)
6386 $make_dirs{dirname ($iter)} = 1;
6388 # We also want to notice Makefile.in's.
6389 foreach my $iter (@other_input_files)
6391 if ($iter =~ /Makefile\.in$/)
6393 $make_dirs{dirname ($iter)} = 1;
6398 return defined $make_dirs{$dir};
6401 ################################################################
6403 # This variable is local to the "require file" set of functions.
6404 my @require_file_paths = ();
6407 # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
6408 # --------------------------------------------------
6409 # See if we want to push this file onto dist_common. This function
6410 # encodes the rules for deciding when to do so.
6411 sub maybe_push_required_file
6413 my ($dir, $file, $fullfile) = @_;
6415 if ($dir eq $relative_dir)
6417 push_dist_common ($file);
6420 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
6422 # If we are doing the topmost directory, and the file is in a
6423 # subdir which does not have a Makefile, then we distribute it
6425 push_dist_common ($fullfile);
6432 # &require_file_internal ($WHERE, $MYSTRICT, @FILES)
6433 # --------------------------------------------------
6434 # Verify that the file must exist in the current directory.
6435 # $MYSTRICT is the strictness level at which this file becomes required.
6437 # Must set require_file_paths before calling this function.
6438 # require_file_paths is set to hold a single directory (the one in
6439 # which the first file was found) before return.
6440 sub require_file_internal ($$@)
6442 my ($where, $mystrict, @files) = @_;
6444 foreach my $file (@files)
6452 my $dangling_sym = 0;
6453 foreach my $dir (@require_file_paths)
6455 $fullfile = $dir . "/" . $file;
6456 $errdir = $dir unless $errdir;
6458 # Use different name for "error filename". Otherwise on
6459 # an error the bad file will be reported as e.g.
6460 # `../../install-sh' when using the default
6462 $errfile = $errdir . '/' . $file;
6464 if (-l $fullfile && ! -f $fullfile)
6469 elsif (-f $fullfile)
6472 maybe_push_required_file ($dir, $file, $fullfile);
6478 # `--force-missing' only has an effect if `--add-missing' is
6480 if ($found_it && (! $add_missing || ! $force_missing))
6482 # Prune the path list.
6483 @require_file_paths = $save_dir;
6487 # If we've already looked for it, we're done. You might
6488 # wonder why we don't do this before searching for the
6489 # file. If we do that, then something like
6490 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
6494 next if defined $require_file_found{$fullfile};
6495 $require_file_found{$fullfile} = 1;
6498 if ($strictness >= $mystrict)
6500 if ($dangling_sym && $add_missing)
6508 # Only install missing files according to our desired
6510 my $message = "required file `$errfile' not found";
6513 if (-f ("$libdir/$file"))
6517 # Install the missing file. Symlink if we
6518 # can, copy if we must. Note: delete the file
6519 # first, in case it is a dangling symlink.
6520 $message = "installing `$errfile'";
6521 # Windows Perl will hang if we try to delete a
6522 # file that doesn't exist.
6523 unlink ($errfile) if -f $errfile;
6524 if ($symlink_exists && ! $copy_missing)
6526 if (! symlink ("$libdir/$file", $errfile))
6529 $trailer = "; error while making link: $!";
6532 elsif (system ('cp', "$libdir/$file", $errfile))
6535 $trailer = "\n error while copying";
6539 if (! maybe_push_required_file (dirname ($errfile),
6544 # We have added the file but could not push it
6545 # into DIST_COMMON (probably because this is
6546 # an auxiliary file and we are not processing
6547 # the top level Makefile). This is unfortunate,
6548 # since it means we are using a file which is not
6551 # Get Automake to be run again: on the second
6552 # run the file will be found, and pushed into
6553 # the toplevel DIST_COMMON automatically.
6554 $automake_needs_to_reprocess_all_files = 1;
6558 # Prune the path list.
6559 @require_file_paths = &dirname ($errfile);
6562 # If --force-missing was specified, and we have
6563 # actually found the file, then do nothing.
6565 if $found_it && $force_missing;
6567 # If we couldn' install the file, but it is a target in
6568 # the Makefile, don't print anything. This allows files
6569 # like README, AUTHORS, or THANKS to be generated.
6571 if !$suppress && rule $file;
6573 msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
6579 # &require_file ($WHERE, $MYSTRICT, @FILES)
6580 # -----------------------------------------
6581 sub require_file ($$@)
6583 my ($where, $mystrict, @files) = @_;
6584 @require_file_paths = $relative_dir;
6585 require_file_internal ($where, $mystrict, @files);
6588 # &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
6589 # -----------------------------------------------------------
6590 sub require_file_with_macro ($$$@)
6592 my ($cond, $macro, $mystrict, @files) = @_;
6593 $macro = rvar ($macro) unless ref $macro;
6594 require_file ($macro->rdef ($cond)->location, $mystrict, @files);
6598 # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
6599 # ----------------------------------------------
6600 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
6601 sub require_conf_file ($$@)
6603 my ($where, $mystrict, @files) = @_;
6604 @require_file_paths = @config_aux_path;
6605 require_file_internal ($where, $mystrict, @files);
6606 my $dir = $require_file_paths[0];
6607 @config_aux_path = @require_file_paths;
6608 # Avoid unsightly '/.'s.
6609 $config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
6613 # &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
6614 # ----------------------------------------------------------------
6615 sub require_conf_file_with_macro ($$$@)
6617 my ($cond, $macro, $mystrict, @files) = @_;
6618 require_conf_file (rvar ($macro)->rdef ($cond)->location,
6622 ################################################################
6624 # &require_build_directory ($DIRECTORY)
6625 # ------------------------------------
6626 # Emit rules to create $DIRECTORY if needed, and return
6627 # the file that any target requiring this directory should be made
6629 sub require_build_directory ($)
6631 my $directory = shift;
6632 my $dirstamp = "$directory/\$(am__dirstamp)";
6634 # Don't emit the rule twice.
6635 if (! defined $directory_map{$directory})
6637 $directory_map{$directory} = 1;
6639 # Set a variable for the dirstamp basename.
6640 define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
6641 '$(am__leading_dot)dirstamp');
6643 # Directory must be removed by `make distclean'.
6644 $clean_files{$dirstamp} = DIST_CLEAN;
6646 $output_rules .= ("$dirstamp:\n"
6647 . "\t\@\$(mkdir_p) $directory\n"
6648 . "\t\@: > $dirstamp\n");
6654 # &require_build_directory_maybe ($FILE)
6655 # --------------------------------------
6656 # If $FILE lies in a subdirectory, emit a rule to create this
6657 # directory and return the file that $FILE should be made
6658 # dependent upon. Otherwise, just return the empty string.
6659 sub require_build_directory_maybe ($)
6662 my $directory = dirname ($file);
6664 if ($directory ne '.')
6666 return require_build_directory ($directory);
6674 ################################################################
6676 # Push a list of files onto dist_common.
6677 sub push_dist_common
6679 prog_error "push_dist_common run after handle_dist"
6680 if $handle_dist_run;
6681 Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
6682 '', INTERNAL, VAR_PRETTY);
6686 ################################################################
6688 # generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
6689 # ----------------------------------------------
6690 # Generate a Makefile.in given the name of the corresponding Makefile and
6691 # the name of the file output by config.status.
6692 sub generate_makefile ($$)
6694 my ($makefile_am, $makefile_in) = @_;
6696 # Reset all the Makefile.am related variables.
6697 initialize_per_input;
6699 # AUTOMAKE_OPTIONS can contains -W flags to disable or enable
6700 # warnings for this file. So hold any warning issued before
6701 # we have processed AUTOMAKE_OPTIONS.
6702 buffer_messages ('warning');
6704 # Name of input file ("Makefile.am") and output file
6705 # ("Makefile.in"). These have no directory components.
6706 $am_file_name = basename ($makefile_am);
6707 $in_file_name = basename ($makefile_in);
6709 # $OUTPUT is encoded. If it contains a ":" then the first element
6710 # is the real output file, and all remaining elements are input
6711 # files. We don't scan or otherwise deal with these input files,
6712 # other than to mark them as dependencies. See
6713 # &scan_autoconf_files for details.
6714 my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
6716 $relative_dir = dirname ($makefile);
6717 $am_relative_dir = dirname ($makefile_am);
6719 read_main_am_file ($makefile_am);
6722 # Process buffered warnings.
6724 # Fatal error. Just return, so we can continue with next file.
6727 # Process buffered warnings.
6730 # There are a few install-related variables that you should not define.
6731 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
6736 my $def = $v->def (TRUE);
6737 prog_error "$var not defined in condition TRUE"
6739 reject_var $var, "`$var' should not be defined"
6740 if $def->owner != VAR_AUTOMAKE;
6744 # Catch some obsolete variables.
6745 msg_var ('obsolete', 'INCLUDES',
6746 "`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
6747 if var ('INCLUDES');
6749 # At the toplevel directory, we might need config.guess, config.sub
6750 # or libtool scripts (ltconfig and ltmain.sh).
6751 if ($relative_dir eq '.')
6753 # AC_CANONICAL_HOST and AC_CANONICAL_SYSTEM need config.guess and
6755 require_conf_file ($canonical_location, FOREIGN,
6756 'config.guess', 'config.sub')
6760 # Must do this after reading .am file.
6761 define_variable ('subdir', $relative_dir, INTERNAL);
6763 # If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
6764 # recursive rules are enabled.
6765 define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
6766 if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
6768 # Check first, because we might modify some state.
6770 check_gnu_standards;
6771 check_gnits_standards;
6773 handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
6780 # This must run first so that the ANSI2KNR definition is generated
6781 # before it is used by the _.c rules. We have to do this because
6782 # a variable which is used in a dependency must be defined before
6783 # the target, or else make won't properly see it.
6785 # This must be run after all the sources are scanned.
6788 # We have to run this after dealing with all the programs.
6791 # Variables used by distdir.am and tags.am.
6792 define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
6793 define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
6805 handle_minor_options;
6808 # This must come after most other rules.
6812 do_check_merge_target;
6813 handle_all ($makefile);
6816 if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
6818 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
6822 handle_clean ($makefile);
6823 handle_factored_dependencies;
6825 # Comes last, because all the above procedures may have
6826 # defined or overridden variables.
6827 $output_vars .= output_variables;
6831 if (! -d ($output_directory . '/' . $am_relative_dir))
6833 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
6836 my ($out_file) = $output_directory . '/' . $makefile_in;
6838 # We make sure that `all:' is the first target.
6840 "$output_vars$output_all$output_header$output_rules$output_trailer";
6842 # Decide whether we must update the output file or not.
6843 # We have to update in the following situations.
6844 # * $force_generation is set.
6845 # * any of the output dependencies is younger than the output
6846 # * the contents of the output is different (this can happen
6847 # if the project has been populated with a file listed in
6848 # @common_files since the last run).
6849 # Output's dependencies are split in two sets:
6850 # * dependencies which are also configure dependencies
6851 # These do not change between each Makefile.am
6852 # * other dependencies, specific to the Makefile.am being processed
6853 # (such as the Makefile.am itself, or any Makefile fragment
6855 my $timestamp = mtime $out_file;
6856 if (! $force_generation
6857 && $configure_deps_greatest_timestamp < $timestamp
6858 && $output_deps_greatest_timestamp < $timestamp
6859 && $output eq contents ($out_file))
6861 verb "$out_file unchanged";
6862 # No need to update.
6869 or fatal "cannot remove $out_file: $!\n";
6872 my $gm_file = new Automake::XFile "> $out_file";
6873 verb "creating $out_file";
6874 print $gm_file $output;
6877 ################################################################
6882 ################################################################
6884 # Print usage information.
6887 print "Usage: $0 [OPTION] ... [Makefile]...
6889 Generate Makefile.in for configure from Makefile.am.
6892 --help print this help, then exit
6893 --version print version number, then exit
6894 -v, --verbose verbosely list files processed
6895 --no-force only update Makefile.in's that are out of date
6896 -W, --warnings=CATEGORY report the warnings falling in CATEGORY
6898 Dependency tracking:
6899 -i, --ignore-deps disable dependency tracking code
6900 --include-deps enable dependency tracking code
6903 --cygnus assume program is part of Cygnus-style tree
6904 --foreign set strictness to foreign
6905 --gnits set strictness to gnits
6906 --gnu set strictness to gnu
6909 -a, --add-missing add missing standard files to package
6910 --libdir=DIR directory storing library files
6911 -c, --copy with -a, copy missing files (default is symlink)
6912 -f, --force-missing force update of standard files
6915 Automake::ChannelDefs::usage;
6919 foreach my $iter (sort ((@common_files, @common_sometimes)))
6921 push (@lcomm, $iter) unless $iter eq $last;
6926 print "\nFiles which are automatically distributed, if found:\n";
6927 format USAGE_FORMAT =
6928 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
6929 $four[0], $four[1], $four[2], $four[3]
6931 $~ = "USAGE_FORMAT";
6934 my $rows = int(@lcomm / $cols);
6935 my $rest = @lcomm % $cols;
6946 for (my $y = 0; $y < $rows; $y++)
6948 @four = ("", "", "", "");
6949 for (my $x = 0; $x < $cols; $x++)
6951 last if $y + 1 == $rows && $x == $rest;
6953 my $idx = (($x > $rest)
6954 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
6958 $four[$x] = $lcomm[$idx];
6963 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
6965 # --help always returns 0 per GNU standards.
6972 # Print version information
6976 automake (GNU $PACKAGE) $VERSION
6977 Written by Tom Tromey <tromey\@redhat.com>.
6979 Copyright 2003 Free Software Foundation, Inc.
6980 This is free software; see the source for copying conditions. There is NO
6981 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
6983 # --version always returns 0 per GNU standards.
6987 ################################################################
6989 # Parse command line.
6990 sub parse_arguments ()
6993 set_strictness ('gnu');
6995 my $cli_where = new Automake::Location;
6998 'libdir:s' => \$libdir,
6999 'gnu' => sub { set_strictness ('gnu'); },
7000 'gnits' => sub { set_strictness ('gnits'); },
7001 'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
7002 'foreign' => sub { set_strictness ('foreign'); },
7003 'include-deps' => sub { unset_global_option ('no-dependencies'); },
7004 'i|ignore-deps' => sub { set_global_option ('no-dependencies',
7006 'no-force' => sub { $force_generation = 0; },
7007 'f|force-missing' => \$force_missing,
7008 'o|output-dir:s' => \$output_directory,
7009 'a|add-missing' => \$add_missing,
7010 'c|copy' => \$copy_missing,
7011 'v|verbose' => sub { setup_channel 'verb', silent => 0; },
7012 'W|warnings:s' => \&parse_warnings,
7013 # These long options (--Werror and --Wno-error) for backward
7014 # compatibility. Use -Werror and -Wno-error today.
7015 'Werror' => sub { parse_warnings 'W', 'error'; },
7016 'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
7019 Getopt::Long::config ("bundling", "pass_through");
7021 # See if --version or --help is used. We want to process these before
7022 # anything else because the GNU Coding Standards require us to
7023 # `exit 0' after processing these options, and we can't guarantee this
7024 # if we treat other options first. (Handling other options first
7025 # could produce error diagnostics, and in this condition it is
7026 # confusing if Automake does `exit 0'.)
7027 my %cli_options_1st_pass =
7029 'version' => \&version,
7031 # Recognize all other options (and their arguments) but do nothing.
7032 map { $_ => sub {} } (keys %cli_options)
7034 my @ARGV_backup = @ARGV;
7035 Getopt::Long::GetOptions %cli_options_1st_pass
7037 @ARGV = @ARGV_backup;
7039 # Now *really* process the options. This time we know
7040 # that --help and --version are not present.
7041 Getopt::Long::GetOptions %cli_options
7044 if (defined $output_directory)
7046 msg 'obsolete', "`--output-dir' is deprecated\n";
7050 # In the next release we'll remove this entirely.
7051 $output_directory = '.';
7054 foreach my $arg (@ARGV)
7058 fatal ("unrecognized option `$arg'\n"
7059 . "Try `$0 --help' for more information.");
7062 # Handle $local:$input syntax.
7063 my ($local, @rest) = split (/:/, $arg);
7064 @rest = ("$local.in",) unless @rest;
7065 my $input = locate_am @rest;
7068 push @input_files, $input;
7069 $output_files{$input} = join (':', ($local, @rest));
7073 error "no Automake input file found in `$arg'";
7078 ################################################################
7080 # Parse the WARNINGS environment variable.
7083 # Parse command line.
7086 $configure_ac = require_configure_ac;
7088 # Do configure.ac scan only once.
7089 scan_autoconf_files;
7091 fatal "no `Makefile.am' found or specified\n"
7094 my $automake_has_run = 0;
7098 if ($automake_has_run)
7100 verb 'processing Makefiles another time to fix them up.';
7101 prog_error 'running more than two times should never be needed.'
7102 if $automake_has_run >= 2;
7104 $automake_needs_to_reprocess_all_files = 0;
7106 # Now do all the work on each file.
7107 foreach my $file (@input_files)
7109 ($am_file = $file) =~ s/\.in$//;
7110 if (! -f ($am_file . '.am'))
7112 error "`$am_file.am' does not exist";
7116 # Any warning setting now local to this Makefile.am.
7119 generate_makefile ($am_file . '.am', $file);
7121 # Back out any warning setting.
7125 ++$automake_has_run;
7127 while ($automake_needs_to_reprocess_all_files);
7132 ### Setup "GNU" style for perl-mode and cperl-mode.
7134 ## perl-indent-level: 2
7135 ## perl-continued-statement-offset: 2
7136 ## perl-continued-brace-offset: 0
7137 ## perl-brace-offset: 0
7138 ## perl-brace-imaginary-offset: 0
7139 ## perl-label-offset: -2
7140 ## cperl-indent-level: 2
7141 ## cperl-brace-offset: 0
7142 ## cperl-continued-brace-offset: 0
7143 ## cperl-label-offset: -2
7144 ## cperl-extra-newline-before-brace: t
7145 ## cperl-merge-trailing-else: nil
7146 ## cperl-continued-statement-offset: 2