5 eval 'exec @PERL@ -S $0 ${1+"$@"}'
8 # automake - create Makefile.in from Makefile.am
9 # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
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@cygnus.com>.
34 my $prefix = "@prefix@";
35 my $perllibdir = $ENV{'perllibdir'} || "@datadir@/@PACKAGE@";
36 unshift @INC, "$perllibdir";
40 struct (# Short name of the language (c, f77...).
42 # Nice name of the language (C, Fortran 77...).
45 # List of configure variables which must be defined.
49 # `pure' is `1' or `'. A `pure' language is one where, if
50 # all the files in a directory are of that language, then we
51 # do not require the C compiler or any code to call it.
56 # Name of the compiling variable (COMPILE).
58 # Content of the compiling variable.
60 # Flag to require compilation without linking (-c).
61 'compile_flag' => "\$",
64 # Should the flag be defined as a configure variable.
65 # Defaults to true. FIXME: this should go away once
66 # we move to autoconf tracing.
67 'define_flag' => "\$",
69 # The file to use when generating rules for this language.
70 # The default is 'depend2'.
73 # Name of the linking variable (LINK).
75 # Content of the linking variable.
78 # Name of the linker variable (LD).
80 # Content of the linker variable ($(CC)).
83 # Flag to specify the output file (-o).
84 'output_flag' => "\$",
87 # This is a subroutine which is called whenever we finally
88 # determine the context in which a source file will be
90 '_target_hook' => "\$");
96 if (defined $self->_finish)
102 sub target_hook ($$$$)
105 if (defined $self->_target_hook)
107 &{$self->_target_hook} (@_);
113 use strict 'vars', 'subs';
114 use Automake::General;
123 # Parameters set by configure. Not to be changed. NOTE: assign
124 # VERSION as string so that eg version 0.30 will print correctly.
125 my $VERSION = "@VERSION@";
126 my $PACKAGE = "@PACKAGE@";
127 my $prefix = "@prefix@";
128 my $libdir = "@datadir@/@PACKAGE@";
131 my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
132 my $WHITE_PATTERN = '^\s*$';
133 my $COMMENT_PATTERN = '^#';
134 my $TARGET_PATTERN='[$a-zA-Z_.@][-.a-zA-Z0-9_(){}/$+@]*';
135 # A rule has three parts: a list of targets, a list of dependencies,
136 # and optionally actions.
138 "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
140 my $SUFFIX_RULE_PATTERN = '^\.([a-zA-Z0-9+]+)\.([a-zA-Z0-9+]+)$';
141 # Only recognize leading spaces, not leading tabs. If we recognize
142 # leading tabs here then we need to make the reader smarter, because
143 # otherwise it will think rules like `foo=bar; \' are errors.
144 my $MACRO_PATTERN = '^[A-Za-z0-9_@]+$';
145 my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)$';
146 # This pattern recognizes a Gnits version id and sets $1 if the
147 # release is an alpha release. We also allow a suffix which can be
148 # used to extend the version number with a "fork" identifier.
149 my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
150 my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?$';
151 my $ELSE_PATTERN = '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?$';
152 my $ENDIF_PATTERN = '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?$';
153 my $PATH_PATTERN='(\w|[/.-])+';
154 # This will pass through anything not of the prescribed form.
155 my $INCLUDE_PATTERN = ('^include\s+'
156 . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
157 . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
158 . '|([^/\$]' . $PATH_PATTERN. '))\s*(#.*)?$');
160 # Some regular expressions. One reason to put them here is that it
161 # makes indentation work better in Emacs.
162 my $AC_CONFIG_AUX_DIR_PATTERN = 'AC_CONFIG_AUX_DIR\(([^)]+)\)';
163 my $AM_INIT_AUTOMAKE_PATTERN = 'AM_INIT_AUTOMAKE\([^,]*,([^,)]+)[,)]';
164 my $AM_PACKAGE_VERSION_PATTERN = '^\s*\[?([^]\s]+)\]?\s*$';
166 # This handles substitution references like ${foo:.a=.b}.
167 my $SUBST_REF_PATTERN = "^([^:]*):([^=]*)=(.*)\$";
169 # Note that there is no AC_PATH_TOOL. But we don't really care.
170 my $AC_CHECK_PATTERN = 'AC_(CHECK|PATH)_(PROG|PROGS|TOOL)\(\[?(\w+)';
171 my $AM_MISSING_PATTERN = 'AM_MISSING_PROG\(\[?(\w+)';
172 # Just check for alphanumeric in AC_SUBST. If you do AC_SUBST(5),
174 my $AC_SUBST_PATTERN = 'AC_SUBST\(\[?(\w+)';
175 my $AM_CONDITIONAL_PATTERN = 'AM_CONDITIONAL\(\[?(\w+)';
176 # Match `-d' as a command-line argument in a string.
177 my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
179 # Constants to define the "strictness" level.
184 # Values for AC_CANONICAL_*
185 my $AC_CANONICAL_HOST = 1;
186 my $AC_CANONICAL_SYSTEM = 2;
188 # Values indicating when something should be cleaned. Right now we
189 # only need to handle `mostly'- and `dist'-clean; add more as
191 my $MOSTLY_CLEAN = 0;
194 # Files installed by libtoolize.
195 my @libtoolize_files = ('ltmain.sh', 'config.guess', 'config.sub');
196 # ltconfig appears here for compatibility with old versions of libtool.
197 my @libtoolize_sometimes = ('ltconfig', 'ltcf-c.sh', 'ltcf-cxx.sh',
200 # Commonly found files we look for and automatically include in
204 'README', 'THANKS', 'TODO', 'NEWS', 'COPYING', 'COPYING.LIB',
205 'INSTALL', 'ABOUT-NLS', 'ChangeLog', 'configure.ac',
206 'configure.in', 'configure', 'config.guess', 'config.sub',
207 'AUTHORS', 'BACKLOG', 'ABOUT-GNU', 'libversion.in',
208 'mdate-sh', 'mkinstalldirs', 'install-sh', 'texinfo.tex',
209 'ansi2knr.c', 'ansi2knr.1', 'elisp-comp',
210 # ltconfig appears here for compatibility with old versions
212 'ylwrap', 'acinclude.m4', @libtoolize_files, @libtoolize_sometimes,
213 'missing', 'depcomp', 'compile', 'py-compile'
216 # Commonly used files we auto-include, but only sometimes.
217 my @common_sometimes =
219 'aclocal.m4', 'acconfig.h', 'config.h.top',
220 'config.h.bot', 'stamp-h.in', 'stamp-vti'
223 # Copyright on generated Makefile.ins.
224 my $gen_copyright = "\
225 # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
226 # Free Software Foundation, Inc.
227 # This Makefile.in is free software; the Free Software Foundation
228 # gives unlimited permission to copy and/or distribute it,
229 # with or without modifications, as long as this notice is preserved.
231 # This program is distributed in the hope that it will be useful,
232 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
233 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
234 # PARTICULAR PURPOSE.
237 # These constants are returned by lang_*_rewrite functions.
238 # LANG_SUBDIR means that the resulting object file should be in a
239 # subdir if the source file is. In this case the file name cannot
240 # have `..' components.
242 my $LANG_PROCESS = 1;
245 # Directories installed during 'install-exec' phase.
264 # Map from obsolete macros to hints for new macros.
265 # If you change this, change the corresponding list in aclocal.in.
266 # FIXME: should just put this into a single file.
267 my %obsolete_macros =
269 'AC_FEATURE_CTYPE' => "use `AC_HEADER_STDC'",
270 'AC_FEATURE_ERRNO' => "add `strerror' to `AC_REPLACE_FUNCS(...)'",
271 'AC_FEATURE_EXIT' => '',
272 'AC_SYSTEM_HEADER' => '',
274 # Note that we do not handle this one, because it is still run
275 # from AM_CONFIG_HEADER. So we deal with it specially in
276 # &scan_autoconf_files.
277 # 'AC_CONFIG_HEADER' => "use `AM_CONFIG_HEADER'",
279 'fp_C_PROTOTYPES' => "use `AM_C_PROTOTYPES'",
280 'fp_PROG_CC_STDC' => "use `AM_PROG_CC_STDC'",
281 'fp_PROG_INSTALL' => "use `AC_PROG_INSTALL'",
282 'fp_WITH_DMALLOC' => "use `AM_WITH_DMALLOC'",
283 'fp_WITH_REGEX' => "use `AM_WITH_REGEX'",
284 'gm_PROG_LIBTOOL' => "use `AM_PROG_LIBTOOL'",
285 'jm_MAINTAINER_MODE' => "use `AM_MAINTAINER_MODE'",
286 'md_TYPE_PTRDIFF_T' => "add `ptrdiff_t' to `AC_CHECK_TYPES(...)'",
287 'ud_PATH_LISPDIR' => "use `AM_PATH_LISPDIR'",
288 'ud_GNU_GETTEXT' => "use `AM_GNU_GETTEXT'",
290 # Now part of autoconf proper, under a different name.
291 'fp_FUNC_FNMATCH' => "use `AC_FUNC_FNMATCH'",
292 'AM_SANITY_CHECK_CC' => "automatically done by `AC_PROG_CC'",
293 'AM_PROG_INSTALL' => "use `AC_PROG_INSTALL'",
294 'AM_EXEEXT' => "automatically done by `AC_PROG_(CC|CXX|F77)'",
295 'AM_CYGWIN32' => "use `AC_CYGWIN'",
296 'AM_MINGW32' => "use `AC_MINGW32'",
297 'AM_FUNC_MKTIME' => "use `AC_FUNC_MKTIME'",
300 # Regexp to match the above macros.
301 my $obsolete_rx = '\b(' . join ('|', keys %obsolete_macros) . ')\b';
305 ## ---------------------------------- ##
306 ## Variables related to the options. ##
307 ## ---------------------------------- ##
309 # TRUE if we should always generate Makefile.in.
310 my $force_generation = 1;
312 # Strictness level as set on command line.
313 my $default_strictness = $GNU;
315 # Name of strictness level, as set on command line.
316 my $default_strictness_name = 'gnu';
318 # This is TRUE if automatic dependency generation code should be
319 # included in generated Makefile.in.
320 my $cmdline_use_dependencies = 1;
322 # TRUE if in verbose mode.
325 # This holds our (eventual) exit status. We don't actually exit until
326 # we have processed all input files.
329 # From the Perl manual.
330 my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
332 # TRUE if missing standard files should be installed.
335 # TRUE if we should copy missing files; otherwise symlink if possible.
336 my $copy_missing = 0;
338 # TRUE if we should always update files that we know about.
339 my $force_missing = 0;
342 ## ---------------------------------------- ##
343 ## Variables filled during files scanning. ##
344 ## ---------------------------------------- ##
346 # Name of the top autoconf input: `configure.ac' or `configure.in'.
347 my $configure_ac = '';
349 # Files found by scanning configure.ac for LIBOBJS.
352 # True if AM_C_PROTOTYPES appears in configure.ac.
353 my $am_c_prototypes = 0;
355 # Names used in AC_CONFIG_HEADER call. @config_fullnames holds the
356 # name which appears in AC_CONFIG_HEADER, colon and all.
357 # @config_names holds the file names. @config_headers holds the '.in'
358 # files. Ordinarily these are similar, but they can be different if
359 # the weird "NAME:FILE" syntax is used.
360 my @config_fullnames = ();
361 my @config_names = ();
362 my @config_headers = ();
363 # Line number at which AC_CONFIG_HEADER appears in configure.ac.
364 my $config_header_line = 0;
366 # Directory where output files go. Actually, output files are
367 # relative to this directory.
368 my $output_directory = '.';
370 # List of Makefile.am's to process, and their corresponding outputs.
371 my @input_files = ();
372 my %output_files = ();
374 # Complete list of Makefile.am's that exist.
375 my @configure_input_files = ();
377 # List of files in AC_OUTPUT without Makefile.am, and their outputs.
378 my @other_input_files = ();
379 # Line number at which AC_OUTPUT seen.
380 my $ac_output_line = 0;
382 # List of directories to search for configure-required files. This
383 # can be set by AC_CONFIG_AUX_DIR.
384 my @config_aux_path = ('.', '..', '../..');
385 my $config_aux_dir = '';
386 my $config_aux_dir_set_in_configure_in = 0;
388 # Whether AM_GNU_GETTEXT has been seen in configure.ac.
389 my $seen_gettext = 0;
390 # Line number at which AM_GNU_GETTEXT seen.
391 my $ac_gettext_line = 0;
393 # TRUE if AC_DECL_YYTEXT was seen.
394 my $seen_decl_yytext = 0;
396 # TRUE if we've seen AC_CANONICAL_(HOST|SYSTEM). The presence of
397 # AC_CHECK_TOOL also sets this.
398 my $seen_canonical = 0;
400 # TRUE if we've seen AC_PROG_LIBTOOL.
401 my $seen_libtool = 0;
402 my $libtool_line = 0;
404 # TRUE if we've seen AM_MAINTAINER_MODE.
405 my $seen_maint_mode = 0;
407 # Actual version we've seen.
408 my $package_version = '';
410 # Line number where we saw version definition.
411 my $package_version_line = 0;
413 # TRUE if we've seen AM_PATH_LISPDIR.
414 my $seen_lispdir = 0;
416 # TRUE if we've seen AM_PATH_PYTHON.
417 my $seen_pythondir = 0;
419 # TRUE if we've seen AC_ENABLE_MULTILIB.
420 my $seen_multilib = 0;
422 # TRUE if we've seen AM_PROG_CC_C_O
425 # TRUE if we've seen AM_INIT_AUTOMAKE.
426 my $seen_init_automake = 0;
428 # Hash table of discovered configure substitutions. Keys are names,
429 # values are `FILE:LINE' strings which are used by error message
431 my %configure_vars = ();
433 # This is used to keep track of which variable definitions we are
434 # scanning. It is only used in certain limited ways, but it has to be
435 # global. It is declared just for documentation purposes.
436 my %vars_scanned = ();
438 # TRUE if --cygnus seen.
441 # Hash table of AM_CONDITIONAL variables seen in configure.
442 my %configure_cond = ();
444 # This maps extensions onto language names.
445 my %extension_map = ();
447 # List of the DIST_COMMON files we discovered while reading
449 my $configure_dist_common = '';
451 # This maps languages names onto objects.
454 # List of targets we must always output.
455 # FIXME: Complete, and remove falsely required targets.
456 my %required_targets =
467 # FIXME: Not required, temporary hacks.
468 # Well, actually they are sort of required: the -recursive
469 # targets will run them anyway...
472 'install-data-am' => 1,
473 'install-exec-am' => 1,
474 'installcheck-am' => 1,
482 ################################################################
484 ## ------------------------------------------ ##
485 ## Variables reset by &initialize_per_input. ##
486 ## ------------------------------------------ ##
488 # Basename and relative dir of the input file.
492 # Same but wrt Makefile.in.
496 # These two variables are used when generating each Makefile.in.
497 # They hold the Makefile.in until it is ready to be printed.
504 # Suffixes found during a run.
507 # Handling the variables.
510 # - $var_value{$VAR}{$COND} is its value associated to $COND,
511 # - $var_line{$VAR} is where it has been defined,
512 # - $var_comment{$VAR} are the comments associated to it.
513 # - $var_type{$VAR} is how it has been defined (`', `+', or `:'),
514 # - $var_is_am{$VAR} is true if the variable is owned by Automake.
521 # This holds a 1 if a particular variable was examined.
524 # This holds the names which are targets. These also appear in
528 # Same as %VAR_VALUE, but for targets.
529 my %target_conditional;
531 # This is the conditional stack.
534 # This holds the set of included files.
537 # This holds a list of directories which we must create at `dist'
538 # time. This is used in some strange scenarios involving weird
539 # AC_OUTPUT commands.
542 # List of dependencies for the obvious targets.
547 # Holds the dependencies of targets which dependencies are factored.
548 # Typically, `.PHONY' will appear in plenty of *.am files, but must
549 # be output once. Arguably all pure dependencies could be subject
550 # to this factorization, but it is not unpleasant to have paragraphs
551 # in Makefile: keeping related stuff altogether.
554 # Holds the factored actions. Tied to %DEPENDENCIES, i.e., filled
555 # only when keys exists in %DEPENDENCIES.
558 # A list of files deleted by `maintainer-clean'.
559 my @maintainer_clean_files;
561 # Keys in this hash table are object files or other files in
562 # subdirectories which need to be removed. This only holds files
563 # which are created by compilations. The value in the hash indicates
564 # when the file should be removed.
565 my %compile_clean_files;
567 # Value of `$(SOURCES)', used by tags.am.
569 # Sources which go in the distribution.
572 # This hash maps object file names onto their corresponding source
573 # file names. This is used to ensure that each object is created
574 # by a single source file.
577 # This keeps track of the directories for which we've already
578 # created `.dirstamp' code.
588 # Options from AUTOMAKE_OPTIONS.
591 # Whether or not dependencies are handled. Can be further changed
593 my $use_dependencies;
595 # This is a list of all targets to run during "make dist".
598 # Keys in this hash are the basenames of files which must depend
602 # This maps the source extension of a suffix rule to its
603 # corresponding output extension.
606 # This is the name of the redirect `all' target to use.
609 # This keeps track of which extensions we've seen (that we care
613 # This is random scratch space for the language finish functions.
614 # Don't randomly overwrite it; examine other uses of keys first.
615 my %language_scratch;
617 # We keep track of which objects need special (per-executable)
618 # handling on a per-language basis.
619 my %lang_specific_files;
621 # This is set when `handle_dist' has finished. Once this happens,
622 # we should no longer push on dist_common.
625 # Used to store a set of linkers needed to generate the sources currently
626 # under consideration.
629 # True if we need `LINK' defined. This is a hack.
632 # This is the list of such variables to output.
633 # FIXME: Might be useless actually.
636 # Was get_object_extension run?
637 # FIXME: This is a hack. a better switch should be found.
638 my $get_object_extension_was_run;
640 # Contains a stack of `from' parts of variable substitutions currently in
644 # Contains a stack of `to' parts of variable substitutions currently in
648 # Associates a variable name, together with a list of substitutions to be
649 # performed on it, with a number. Used to provide unique names for generated
653 ## --------------------------------- ##
654 ## Forward subroutine declarations. ##
655 ## --------------------------------- ##
656 sub register_language (%);
657 sub file_contents_internal ($$%);
658 sub define_objects_from_sources ($$$$$$$);
661 # &initialize_per_input ()
662 # ------------------------
663 # (Re)-Initialize per-Makefile.am variables.
664 sub initialize_per_input ()
667 $am_relative_dir = '';
674 $output_trailer = '';
690 %target_conditional = ();
698 $am_relative_dir = '';
714 # Installing/uninstalling.
715 'install-data-am' => [],
716 'install-exec-am' => [],
717 'uninstall-am' => [],
720 'uninstall-man' => [],
722 'install-info' => [],
723 'install-info-am' => [],
724 'uninstall-info' => [],
726 'installcheck-am' => [],
730 'mostlyclean-am' => [],
731 'maintainer-clean-am' => [],
732 'distclean-am' => [],
735 'maintainer-clean' => [],
746 @maintainer_clean_files = ();
757 $strictness = $default_strictness;
758 $strictness_name = $default_strictness_name;
762 $use_dependencies = $cmdline_use_dependencies;
772 %extension_seen = ();
774 %language_scratch = ();
776 %lang_specific_files = ();
778 $handle_dist_run = 0;
784 $get_object_extension_was_run = 0;
786 %compile_clean_files = ();
790 ################################################################
792 # Initialize our list of languages that are internally supported.
795 register_language ('name' => 'c',
797 'config_vars' => ['CC'],
801 'compiler' => 'COMPILE',
802 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
806 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
807 'compile_flag' => '-c',
808 'extensions' => ['c'],
809 '_finish' => \&lang_c_finish);
812 register_language ('name' => 'cxx',
814 'config_vars' => ['CXX'],
815 'linker' => 'CXXLINK',
816 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
818 'flags' => 'CXXFLAGS',
819 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
820 'compiler' => 'CXXCOMPILE',
821 'compile_flag' => '-c',
822 'output_flag' => '-o',
826 'extensions' => ['c++', 'cc', 'cpp', 'cxx', 'C']);
829 register_language ('name' => 'objc',
830 'Name' => 'Objective C',
831 'config_vars' => ['OBJC'],
832 'linker' => 'OBJCLINK',,
833 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
835 'flags' => 'OBJCFLAGS',
836 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
837 'compiler' => 'OBJCCOMPILE',
838 'compile_flag' => '-c',
839 'output_flag' => '-o',
843 'extensions' => ['m']);
846 register_language ('name' => 'header',
848 'extensions' => ['h', 'H', 'hxx', 'h++', 'hh', 'hpp', 'inc'],
850 '_finish' => sub { });
853 register_language ('name' => 'yacc',
855 'config_vars' => ['YACC'],
858 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
859 'compiler' => 'YACCCOMPILE',
860 'extensions' => ['y'],
861 'rule_file' => 'yacc',
862 '_finish' => \&lang_yacc_finish,
863 '_target_hook' => \&lang_yacc_target_hook);
864 register_language ('name' => 'yaccxx',
865 'Name' => 'Yacc (C++)',
866 'config_vars' => ['YACC'],
867 'rule_file' => 'yacc',
870 'compiler' => 'YACCCOMPILE',
871 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
872 'extensions' => ['y++', 'yy', 'yxx', 'ypp'],
873 '_finish' => \&lang_yacc_finish,
874 '_target_hook' => \&lang_yacc_target_hook);
877 register_language ('name' => 'lex',
879 'config_vars' => ['LEX'],
880 'rule_file' => 'lex',
883 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
884 'compiler' => 'LEXCOMPILE',
885 'extensions' => ['l'],
886 '_finish' => \&lang_lex_finish);
887 register_language ('name' => 'lexxx',
888 'Name' => 'Lex (C++)',
889 'config_vars' => ['LEX'],
890 'rule_file' => 'lex',
893 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
894 'compiler' => 'LEXCOMPILE',
895 'extensions' => ['l++', 'll', 'lxx', 'lpp'],
896 '_finish' => \&lang_lex_finish);
899 register_language ('name' => 'asm',
900 'Name' => 'Assembler',
901 'config_vars' => ['AS', 'ASFLAGS'],
903 'flags' => 'ASFLAGS',
904 # Users can set AM_ASFLAGS to includes DEFS, INCLUDES,
905 # or anything else required. They can also set AS.
906 'compile' => '$(AS) $(AM_ASFLAGS) $(ASFLAGS)',
907 'compiler' => 'ASCOMPILE',
908 'compile_flag' => '-c',
909 'extensions' => ['s', 'S'],
911 # With assembly we still use the C linker.
912 '_finish' => \&lang_c_finish);
915 register_language ('name' => 'f77',
916 'Name' => 'Fortran 77',
917 'linker' => 'F77LINK',
918 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
920 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
921 'compiler' => 'F77COMPILE',
922 'compile_flag' => '-c',
923 'output_flag' => '-o',
927 'extensions' => ['f', 'for', 'f90']);
929 # Preprocessed Fortran 77
931 # The current support for preprocessing Fortran 77 just involves
932 # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
933 # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
934 # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
935 # for `make' Version 3.76 Beta' (specifically, from info file
936 # `(make)Catalogue of Rules').
938 # A better approach would be to write an Autoconf test
939 # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
940 # Fortran 77 compilers know how to do preprocessing. The Autoconf
941 # macro AC_PROG_FPP should test the Fortran 77 compiler first for
942 # preprocessing capabilities, and then fall back on cpp (if cpp were
944 register_language ('name' => 'ppf77',
945 'Name' => 'Preprocessed Fortran 77',
946 'config_vars' => ['F77'],
947 'linker' => 'F77LINK',
948 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
952 'compiler' => 'PPF77COMPILE',
953 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
954 'compile_flag' => '-c',
955 'output_flag' => '-o',
957 'extensions' => ['F']);
960 register_language ('name' => 'ratfor',
962 'config_vars' => ['F77'],
963 'linker' => 'F77LINK',
964 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
969 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
970 'compiler' => 'RCOMPILE',
971 'compile_flag' => '-c',
972 'output_flag' => '-o',
974 'extensions' => ['r']);
977 register_language ('name' => 'java',
979 'config_vars' => ['GCJ'],
980 'linker' => 'GCJLINK',
981 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
983 'flags' => 'GCJFLAGS',
984 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
985 'compiler' => 'GCJCOMPILE',
986 'compile_flag' => '-c',
987 'output_flag' => '-o',
991 'extensions' => ['java', 'class', 'zip', 'jar']);
993 ################################################################
995 # Parse command line.
998 # Do configure.ac scan only once.
999 &scan_autoconf_files;
1001 die "$me: no `Makefile.am' found or specified\n"
1004 # Now do all the work on each file.
1005 # This guy must be local otherwise it's private to the loop.
1006 use vars '$am_file';
1008 foreach $am_file (@input_files)
1010 if (! -f ($am_file . '.am'))
1012 &am_error ("`" . $am_file . ".am' does not exist");
1016 &generate_makefile ($output_files{$am_file}, $am_file);
1022 # FIXME: This should be `my'ed next to its subs.
1023 use vars '%require_file_found';
1025 ################################################################
1027 # prog_error (@PRINT-ME)
1028 # ----------------------
1029 # Signal a programming error, display PRINT-ME, and exit 1.
1032 print STDERR "$me: programming error: @_\n";
1039 # Return a configure-style substitution using the indicated text.
1040 # We do this to avoid having the substitutions directly in automake.in;
1041 # when we do that they are sometimes removed and this causes confusion
1046 return '@' . $text . '@';
1049 ################################################################
1053 # &backname ($REL-DIR)
1054 # --------------------
1055 # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
1056 # For instance `src/foo' => `../..'.
1057 # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
1062 foreach (split (/\//, $file))
1064 next if $_ eq '.' || $_ eq '';
1074 return join ('/', @res) || '.';
1077 ################################################################
1079 # Parse command line.
1080 sub parse_arguments ()
1083 &set_strictness ('gnu');
1086 Getopt::Long::config ("bundling");
1087 Getopt::Long::GetOptions
1089 'version' => \&version,
1091 'libdir:s' => \$libdir,
1092 'gnu' => sub { &set_strictness ('gnu'); },
1093 'gnits' => sub { &set_strictness ('gnits'); },
1094 'cygnus' => \$cygnus_mode,
1095 'foreign' => sub { &set_strictness ('foreign'); },
1096 'include-deps' => sub { $cmdline_use_dependencies = 1; },
1097 'i|ignore-deps' => sub { $cmdline_use_dependencies = 0; },
1098 'no-force' => sub { $force_generation = 0; },
1099 'f|force-missing'=> \$force_missing,
1100 'o|output-dir:s' => \$output_directory,
1101 'a|add-missing' => \$add_missing,
1102 'c|copy' => \$copy_missing,
1103 'v|verbose' => \$verbose,
1104 'Werror' => sub { $SIG{"__WARN__"} = sub { die $_[0] } },
1105 'Wno-error' => sub { $SIG{"__WARN__"} = 'DEFAULT' }
1109 foreach my $arg (@ARGV)
1111 # Handle $local:$input syntax. Note that we only examine the
1112 # first ":" file to see if it is automake input; the rest are
1113 # just taken verbatim. We still keep all the files around for
1114 # dependency checking, however.
1115 my ($local, $input, @rest) = split (/:/, $arg);
1122 # Strip .in; later on .am is tacked on. That is how the
1123 # automake input file is found. Maybe not the best way, but
1124 # it is easy to explain.
1126 or die "$me: invalid input file name `$arg'\n.";
1128 push (@input_files, $input);
1129 $output_files{$input} = join (':', ($local, @rest));
1132 # Take global strictness from whatever we currently have set.
1133 $default_strictness = $strictness;
1134 $default_strictness_name = $strictness_name;
1137 ################################################################
1139 # Generate a Makefile.in given the name of the corresponding Makefile and
1140 # the name of the file output by config.status.
1141 sub generate_makefile
1143 my ($output, $makefile) = @_;
1145 # Reset all the Makefile.am related variables.
1146 &initialize_per_input;
1148 # Name of input file ("Makefile.am") and output file
1149 # ("Makefile.in"). These have no directory components.
1150 $am_file_name = basename ($makefile) . '.am';
1151 $in_file_name = basename ($makefile) . '.in';
1153 # $OUTPUT is encoded. If it contains a ":" then the first element
1154 # is the real output file, and all remaining elements are input
1155 # files. We don't scan or otherwise deal with these input file,
1156 # other than to mark them as dependencies. See
1157 # &scan_autoconf_files for details.
1158 my (@secondary_inputs);
1159 ($output, @secondary_inputs) = split (/:/, $output);
1161 $relative_dir = dirname ($output);
1162 $am_relative_dir = dirname ($makefile);
1164 &read_main_am_file ($makefile . '.am');
1165 if (&handle_options)
1167 # Fatal error. Just return, so we can continue with next file.
1171 # There are a few install-related variables that you should not define.
1172 foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
1174 if (&variable_defined ($var) && !$var_is_am{$var})
1176 &am_line_error ($var, "`$var' should not be defined");
1182 # At the toplevel directory, we might need config.guess, config.sub
1183 # or libtool scripts (ltconfig and ltmain.sh).
1184 if ($relative_dir eq '.')
1186 # AC_CANONICAL_HOST and AC_CANONICAL_SYSTEM need config.guess and
1188 &require_config_file ($FOREIGN, 'config.guess', 'config.sub')
1192 # We still need Makefile.in here, because sometimes the `dist'
1193 # target doesn't re-run automake.
1194 if ($am_relative_dir eq $relative_dir)
1196 # Only distribute the files if they are in the same subdir as
1197 # the generated makefile.
1198 &push_dist_common ($in_file_name, $am_file_name);
1201 push (@sources, '$(SOURCES)')
1202 if &variable_defined ('SOURCES');
1204 # Must do this after reading .am file. See read_main_am_file to
1205 # understand weird tricks we play there with variables.
1206 &define_variable ('subdir', $relative_dir);
1208 # Check first, because we might modify some state.
1210 &check_gnu_standards;
1211 &check_gnits_standards;
1213 &handle_configure ($output, $makefile, @secondary_inputs);
1216 &handle_ltlibraries;
1220 # This must run first so that the ANSI2KNR definition is generated
1221 # before it is used by the _.c rules. We have to do this because
1222 # a variable which is used in a dependency must be defined before
1223 # the target, or else make won't properly see it.
1225 # This must be run after all the sources are scanned.
1228 # Re-init SOURCES. FIXME: other code shouldn't depend on this
1229 # (but currently does).
1230 macro_define ('SOURCES', 1, '', 'TRUE',
1231 join (' ', @sources), 'internal');
1232 define_pretty_variable ('DIST_SOURCES', '', @dist_sources);
1244 &handle_minor_options;
1247 # This must come after most other rules.
1248 &handle_dist ($makefile);
1251 &do_check_merge_target;
1252 &handle_all ($output);
1255 if (&variable_defined('lib_LTLIBRARIES') &&
1256 &variable_defined('bin_PROGRAMS'))
1258 $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
1261 &handle_installdirs;
1263 &handle_factored_dependencies;
1267 if (! -d ($output_directory . '/' . $am_relative_dir))
1269 mkdir ($output_directory . '/' . $am_relative_dir, 0755);
1272 my ($out_file) = $output_directory . '/' . $makefile . ".in";
1273 if (! $force_generation && -e $out_file)
1275 my ($am_time) = (stat ($makefile . '.am'))[9];
1276 my ($in_time) = (stat ($out_file))[9];
1277 # FIXME: should cache these times.
1278 my ($conf_time) = (stat ($configure_ac))[9];
1279 # FIXME: how to do unsigned comparison?
1280 if ($am_time < $in_time || $am_time < $conf_time)
1282 # No need to update.
1285 if (-f 'aclocal.m4')
1287 my ($acl_time) = (stat _)[9];
1288 return if ($am_time < $acl_time);
1292 my $gm_file = new IO::File "> $out_file";
1295 warn "$me: ${am_file}.in: cannot write: $!\n";
1299 print "$me: creating ", $makefile, ".in\n" if $verbose;
1301 # In case we're running under MSWindows, don't write with CRLF
1302 # (as it causes problems for the dependency-file extraction in
1303 # AM_OUTPUT_DEPENDENCY_COMMANDS).
1306 print $gm_file $output_vars;
1307 # We make sure that `all:' is the first target.
1308 print $gm_file $output_all;
1309 print $gm_file $output_header;
1310 print $gm_file $output_rules;
1311 print $gm_file $output_trailer;
1313 if (! $gm_file->close)
1315 warn "$me: $am_file.in: cannot close: $!\n";
1321 ################################################################
1323 # A helper which handles the logic of requiring a version number in
1324 # AUTOMAKE_OPTIONS. Return 1 on error, 0 on success.
1325 sub version_check ($$$$)
1327 my ($rmajor, $rminor, $ralpha, $rfork) = ($1, $2, $3, $4);
1329 &prog_error ("version is incorrect: $VERSION")
1330 if $VERSION !~ /(\d+)\.(\d+)([a-z]?)-?([A-Za-z0-9]+)?/;
1332 my ($tmajor, $tminor, $talpha, $tfork) = ($1, $2, $3, $4);
1337 my $rminorminor = 0;
1338 my $tminorminor = 0;
1340 # Some versions were labelled like `1.4-p3a'. This is the same as
1341 # an alpha release labelled `1.4.3a'. However, a version like
1342 # `1.4g' is the same as `1.4.99g'. Yes, this sucks. Moral:
1343 # always listen to the users.
1344 if ($rfork =~ /p([0-9]+)([a-z]?)/)
1347 # `1.4a-p3b' never existed. But we'll accept it anyway.
1348 $ralpha = $ralpha || $2 || '';
1351 if ($tfork =~ /p([0-9]+)([a-z]?)/)
1354 # `1.4a-p3b' never existed. But we'll accept it anyway.
1355 $talpha = $talpha || $2 || '';
1359 $rminorminor = 99 if $ralpha ne '' && $rminorminor == 0;
1360 $tminorminor = 99 if $talpha ne '' && $tminorminor == 0;
1362 # 2.0 is better than 1.0.
1363 # 1.2 is better than 1.1.
1364 # 1.2a is better than 1.2.
1365 # If we require 3.4n-foo then we require something
1366 # >= 3.4n, with the `foo' fork identifier.
1367 # The $r* variables are what the user specified.
1368 # The $t* variables denote automake itself.
1369 if ($rmajor > $tmajor
1370 || ($rmajor == $tmajor && $rminor > $tminor)
1371 || ($rminor == $tminor && $rminor == $tminor
1372 && $rminorminor > $tminorminor)
1373 || ($rminor == $tminor && $rminor == $tminor
1374 && $rminorminor == $tminorminor
1375 && $ralpha gt $talpha)
1376 || ($rfork ne '' && $rfork ne $tfork))
1378 &am_line_error ('AUTOMAKE_OPTIONS',
1379 "require version $_, but have $VERSION");
1386 # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
1389 if (&variable_defined ('AUTOMAKE_OPTIONS'))
1391 foreach (&variable_value_as_list_recursive ('AUTOMAKE_OPTIONS', ''))
1394 if ($_ eq 'gnits' || $_ eq 'gnu' || $_ eq 'foreign')
1396 &set_strictness ($_);
1398 elsif ($_ eq 'cygnus')
1402 elsif (/^(.*\/)?ansi2knr$/)
1404 # An option like "../lib/ansi2knr" is allowed. With
1405 # no path prefix, we assume the required programs are
1406 # in this directory. We save the actual option for
1408 $options{'ansi2knr'} = $_;
1410 elsif ($_ eq 'no-installman' || $_ eq 'no-installinfo'
1411 || $_ eq 'dist-shar' || $_ eq 'dist-zip'
1412 || $_ eq 'dist-tarZ' || $_ eq 'dist-bzip2'
1413 || $_ eq 'dejagnu' || $_ eq 'no-texinfo.tex'
1414 || $_ eq 'readme-alpha' || $_ eq 'check-news'
1415 || $_ eq 'subdir-objects' || $_ eq 'nostdinc'
1416 || $_ eq 'no-exeext')
1418 # Explicitly recognize these.
1420 elsif ($_ eq 'no-dependencies')
1422 $use_dependencies = 0;
1424 elsif (/(\d+)\.(\d+)([a-z]?)(-[A-Za-z0-9]+)?/)
1426 # Got a version number.
1427 if (version_check ($1, $2, $3, $4))
1434 &am_line_error ('AUTOMAKE_OPTIONS',
1435 "option `" . $_ . "\' not recognized");
1440 if ($strictness == $GNITS)
1442 $options{'readme-alpha'} = 1;
1443 $options{'check-news'} = 1;
1450 # get_object_extension ($OUT)
1451 # ---------------------------
1452 # Return object extension. Just once, put some code into the output.
1453 # OUT is the name of the output file
1454 sub get_object_extension
1458 # Maybe require libtool library object files.
1459 my $extension = '.$(OBJEXT)';
1460 $extension = '.lo' if ($out =~ /\.la$/);
1462 # Check for automatic de-ANSI-fication.
1463 $extension = '$U' . $extension
1464 if defined $options{'ansi2knr'};
1466 $get_object_extension_was_run = 1;
1472 # Call finish function for each language that was used.
1473 sub handle_languages
1475 if ($use_dependencies)
1477 # Include auto-dep code. Don't include it if DEP_FILES would
1479 if (&saw_sources_p (0) && keys %dep_files)
1481 # Set location of depcomp.
1482 &define_variable ('depcomp', "\$(SHELL) $config_aux_dir/depcomp");
1484 &require_conf_file ($FOREIGN, 'depcomp');
1486 my @deplist = sort keys %dep_files;
1488 # We define this as a conditional variable because BSD
1489 # make can't handle backslashes for continuing comments on
1490 # the following line.
1491 define_pretty_variable ('DEP_FILES', 'AMDEP_TRUE', @deplist);
1493 # Generate each `include' individually. Irix 6 make will
1494 # not properly include several files resulting from a
1495 # variable expansion; generating many separate includes
1497 $output_rules .= "\n";
1498 foreach my $iter (@deplist)
1500 $output_rules .= (subst ('AMDEP_TRUE')
1501 . subst ('am__include')
1503 . subst ('am__quote')
1505 . subst ('am__quote')
1509 $output_rules .= &file_contents ('depend');
1514 &define_variable ('depcomp', '');
1519 # Is the c linker needed?
1521 foreach my $ext (sort keys %extension_seen)
1523 next unless $extension_map{$ext};
1525 my $lang = $languages{$extension_map{$ext}};
1527 my $rule_file = $lang->rule_file || 'depend2';
1529 # Get information on $LANG.
1530 my $pfx = $lang->autodep;
1531 my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
1533 my $AMDEP = (($use_dependencies && $lang->autodep ne 'no')
1534 ? 'AMDEP' : 'FALSE');
1536 my %transform = ('EXT' => $ext,
1539 'LIBTOOL' => $seen_libtool,
1541 '-c' => $lang->compile_flag || '',
1543 => (count_files_for_language ($lang->name) > 1));
1545 # Generate the appropriate rules for this extension.
1546 if (($use_dependencies && $lang->autodep ne 'no')
1547 || defined $lang->compile)
1549 # Some C compilers don't support -c -o. Use it only if really
1551 my $output_flag = $lang->output_flag || '';
1554 && $lang->flags eq 'CFLAGS'
1555 && defined $options{'subdir-objects'});
1557 # FIXME: this is a temporary hack to compute a possible
1558 # derived extension. This is not used by depend2.am.
1559 (my $der_ext = $ext) =~ tr/yl/cc/;
1561 # Another yacc/lex hack.
1562 my $destfile = '$*.' . $der_ext;
1565 file_contents ($rule_file,
1569 'DERIVED-EXT' => $der_ext,
1577 'COMPILE' => '$(' . $lang->compiler . ')',
1578 'LTCOMPILE' => '$(LT' . $lang->compiler . ')',
1579 '-o' => $output_flag);
1582 # Now include code for each specially handled object with this
1584 my %seen_files = ();
1585 foreach my $file (@{$lang_specific_files{$lang->name}})
1587 my ($derived, $source, $obj, $myext) = split (' ', $file);
1589 # We might see a given object twice, for instance if it is
1590 # used under different conditions.
1591 next if defined $seen_files{$obj};
1592 $seen_files{$obj} = 1;
1594 my $flags = $lang->flags || '';
1595 my $val = "${derived}_${flags}";
1597 &prog_error ("found $lang->name in handle_languages, but compiler not defined")
1598 unless defined $lang->compile;
1600 (my $obj_compile = $lang->compile) =~ s/\(AM_$flags/\($val/;
1601 my $obj_ltcompile = '$(LIBTOOL) --mode=compile ' . $obj_compile;
1603 # We _need_ `-o' for per object rules.
1604 my $output_flag = $lang->output_flag || '-o';
1606 # Generate a transform which will turn suffix targets in
1607 # depend2.am into real targets for the particular objects we
1610 file_contents ($rule_file,
1615 'SOURCE' => $source,
1616 # Use $myext and not `.o' here, in case
1617 # we are actually building a new source
1618 # file -- e.g. via yacc.
1619 'OBJ' => "$obj$myext",
1620 'OBJOBJ' => "$obj.obj",
1621 'LTOBJ' => "$obj.lo",
1623 'COMPILE' => $obj_compile,
1624 'LTCOMPILE' => $obj_ltcompile,
1625 '-o' => $output_flag));
1628 # The rest of the loop is done once per language.
1629 next if defined $done{$lang};
1632 # Load the language dependent Makefile chunks.
1633 my %lang = map { uc ($_) => 0 } keys %languages;
1634 $lang{uc ($lang->name)} = 1;
1635 $output_rules .= file_contents ('lang-compile', %transform, %lang);
1637 # If the source to a program consists entirely of code from a
1638 # `pure' language, for instance C++ for Fortran 77, then we
1639 # don't need the C compiler code. However if we run into
1640 # something unusual then we do generate the C code. There are
1641 # probably corner cases here that do not work properly.
1642 # People linking Java code to Fortran code deserve pain.
1643 $needs_c ||= ! $lang->pure;
1645 define_compiler_variable ($lang)
1646 if ($lang->compile);
1648 define_linker_variable ($lang)
1651 foreach my $var (@{$lang->config_vars})
1653 am_error ($lang->Name
1654 . " source seen but `$var' not defined in"
1655 . " `$configure_ac'")
1656 if !exists $configure_vars{$var};
1659 # The compiler's flag must be a configure variable.
1660 define_configure_variable ($lang->flags)
1661 if defined $lang->flags && $lang->define_flag;
1663 # Call the finisher.
1667 # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
1668 # suffix rule was learned), don't bother with the C stuff. But if
1669 # anything else creeps in, then use it.
1671 if $need_link || scalar keys %suffix_rules > 1;
1675 if (! defined $done{$languages{'c'}})
1677 &define_configure_variable ($languages{'c'}->flags);
1678 &define_compiler_variable ($languages{'c'});
1680 define_linker_variable ($languages{'c'});
1684 # Check to make sure a source defined in LIBOBJS is not explicitly
1685 # mentioned. This is a separate function (as opposed to being inlined
1686 # in handle_source_transform) because it isn't always appropriate to
1688 sub check_libobjs_sources
1690 my ($one_file, $unxformed) = @_;
1692 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
1693 'dist_EXTRA_', 'nodist_EXTRA_')
1696 if (&variable_defined ($prefix . $one_file . '_SOURCES'))
1698 @files = &variable_value_as_list_recursive (
1699 ($prefix . $one_file . '_SOURCES'),
1702 elsif ($prefix eq '')
1704 @files = ($unxformed . '.c');
1711 foreach my $file (@files)
1713 if (defined $libsources{$file})
1715 &am_line_error ($prefix . $one_file . '_SOURCES',
1716 "automatically discovered file `$file' should not be explicitly mentioned");
1724 # handle_single_transform_list ($VAR, $TOPPARENT, $DERIVED, $OBJ, @FILES)
1725 # -----------------------------------------------------------------------
1726 # Does much of the actual work for handle_source_transform.
1728 # $VAR is the name of the variable that the source filenames come from
1729 # $TOPPARENT is the name of the _SOURCES variable which is being processed
1730 # $DERIVED is the name of resulting executable or library
1731 # $OBJ is the object extension (e.g., `$U.lo')
1732 # @FILES is the list of source files to transform
1733 # Result is a list of the names of objects
1734 # %linkers_used will be updated with any linkers needed
1735 sub handle_single_transform_list ($$$$@)
1737 my ($var, $topparent, $derived, $obj, @files) = @_;
1739 my $nonansi_obj = $obj;
1740 $nonansi_obj =~ s/\$U//g;
1742 # Turn sources into objects. We use a while loop like this
1743 # because we might add to @files in the loop.
1744 while (scalar @files > 0)
1748 # Configure substitutions in _SOURCES variables are errors.
1751 &am_line_error ($var, "`$var' includes configure substitution `$_', and is referred to from `$topparent': configure substitutions not allowed in _SOURCES variables");
1755 # If the source file is in a subdirectory then the `.o' is put
1756 # into the current directory, unless the subdir-objects option
1759 # Split file name into base and extension.
1760 next if ! /^(?:(.*)\/)?([^\/]*)\.(.*)$/;
1762 my $directory = $1 || '';
1766 # We must generate a rule for the object if it requires its own flags.
1768 my ($linker, $object);
1770 # This records whether we've seen a derived source file (eg,
1772 my $derived_source = 0;
1774 # This holds the `aggregate context' of the file we are
1775 # currently examining. If the file is compiled with
1776 # per-object flags, then it will be the name of the object.
1777 # Otherwise it will be `AM'. This is used by the target hook
1778 # language function.
1779 my $aggregate = 'AM';
1781 $extension = &derive_suffix ($extension);
1783 if ($extension_map{$extension} &&
1784 ($lang = $languages{$extension_map{$extension}}))
1786 # Found the language, so see what it says.
1787 &saw_extension ($extension);
1789 # Note: computed subr call. The language rewrite function
1790 # should return one of the $LANG_* constants. It could
1791 # also return a list whose first value is such a constant
1792 # and whose second value is a new source extension which
1793 # should be applied. This means this particular language
1794 # generates another source file which we must then process
1796 my $subr = 'lang_' . $lang->name . '_rewrite';
1797 my ($r, $source_extension)
1798 = & $subr ($directory, $base, $extension);
1799 # Skip this entry if we were asked not to process it.
1800 next if $r == $LANG_IGNORE;
1802 # Now extract linker and other info.
1803 $linker = $lang->linker;
1806 if (defined $source_extension)
1808 $this_obj_ext = '.' . $source_extension;
1809 $derived_source = 1;
1813 $this_obj_ext = $obj;
1817 $this_obj_ext = $nonansi_obj;
1819 $object = $base . $this_obj_ext;
1821 if (defined $lang->flags
1822 && &variable_defined ($derived . '_' . $lang->flags))
1824 # We have a per-executable flag in effect for this
1825 # object. In this case we rewrite the object's
1826 # name to ensure it is unique. We also require
1827 # the `compile' program to deal with compilers
1828 # where `-c -o' does not work.
1830 # We choose the name `DERIVED_OBJECT' to ensure
1831 # (1) uniqueness, and (2) continuity between
1832 # invocations. However, this will result in a
1833 # name that is too long for losing systems, in
1834 # some situations. So we provide _SHORTNAME to
1837 my $dname = $derived;
1838 if (&variable_defined ($derived . '_SHORTNAME'))
1840 # FIXME: should use the same conditional as
1841 # the _SOURCES variable. But this is really
1842 # silly overkill -- nobody should have
1843 # conditional shortnames.
1844 $dname = &variable_value ($derived . '_SHORTNAME');
1846 $object = $dname . '-' . $object;
1848 &require_conf_file ($FOREIGN, 'compile')
1849 if $lang->name eq 'c';
1851 &prog_error ("$lang->name flags defined without compiler")
1852 if ! defined $lang->compile;
1857 # If rewrite said it was ok, put the object into a
1859 if ($r == $LANG_SUBDIR && $directory ne '')
1861 $object = $directory . '/' . $object;
1864 # If doing dependency tracking, then we can't print
1865 # the rule. If we have a subdir object, we need to
1866 # generate an explicit rule. Actually, in any case
1867 # where the object is not in `.' we need a special
1868 # rule. The per-object rules in this case are
1869 # generated later, by handle_languages.
1870 if ($renamed || $directory ne '')
1872 my $obj_sans_ext = substr ($object, 0,
1873 - length ($this_obj_ext));
1874 my $val = ("$full $obj_sans_ext "
1875 # Only use $this_obj_ext in the derived
1876 # source case because in the other case we
1877 # *don't* want $(OBJEXT) to appear here.
1878 . ($derived_source ? $this_obj_ext : '.o'));
1880 # If we renamed the object then we want to use the
1881 # per-executable flag name. But if this is simply a
1882 # subdir build then we still want to use the AM_ flag
1886 $val = "$derived $val";
1887 $aggregate = $derived;
1894 # Each item on this list is a string consisting of
1895 # four space-separated values: the derived flag prefix
1896 # (eg, for `foo_CFLAGS', it is `foo'), the name of the
1897 # source file, the base name of the output file, and
1898 # the extension for the object file.
1899 push (@{$lang_specific_files{$lang->name}}, $val);
1902 elsif ($extension eq 'o')
1904 # This is probably the result of a direct suffix rule.
1905 # In this case we just accept the rewrite. FIXME:
1906 # this fails if we want libtool objects.
1907 $object = $base . '.' . $extension;
1912 # No error message here. Used to have one, but it was
1914 # FIXME: we could potentially do more processing here,
1915 # perhaps treating the new extension as though it were a
1916 # new source extension (as above). This would require
1917 # more restructuring than is appropriate right now.
1921 if (defined $object_map{$object})
1923 if ($object_map{$object} ne $full)
1925 &am_error ("object `$object' created by `$full' and `$object_map{$object}'");
1929 # Let the language do some special magic if required.
1930 $lang->target_hook ($aggregate, $object, $full);
1932 if ($derived_source)
1934 &prog_error ("$lang->name has automatic dependency tracking")
1935 if $lang->autodep ne 'no';
1936 # Make sure this new source file is handled next. That will
1937 # make it appear to be at the right place in the list.
1938 unshift (@files, $object);
1940 &push_dist_common ($object);
1944 $linkers_used{$linker} = 1;
1946 push (@result, $object);
1948 if (! defined $object_map{$object})
1951 $object_map{$object} = $full;
1953 # If file is in subdirectory, we need explicit
1955 if ($directory ne '' || $renamed)
1957 push (@dep_list, $full);
1960 # If resulting object is in subdir, we need to make
1961 # sure the subdir exists at build time.
1962 if ($object =~ /\//)
1964 # FIXME: check that $DIRECTORY is somewhere in the
1967 # We don't allow `..' in object file names for
1968 # *any* source, not just Java. For Java it just
1969 # doesn't make sense, but in general it is
1970 # a problem because we can't pick a good name for
1972 if ($object =~ /(\/|^)\.\.\//)
1974 &am_error ("`$full' contains `..' component but should not");
1977 # Make sure object is removed by `make mostlyclean'.
1978 $compile_clean_files{$object} = $MOSTLY_CLEAN;
1980 push (@dep_list, &require_build_directory ($directory));
1982 # If we're generating dependencies, we also want
1983 # to make sure that the appropriate subdir of the
1984 # .deps directory is created.
1985 push (@dep_list, &require_build_directory ('$(DEPDIR)/' . $directory))
1986 if ($use_dependencies);
1989 &pretty_print_rule ($object . ':', "\t", @dep_list)
1990 if scalar @dep_list > 0;
1993 # Transform .o or $o file into .P file (for automatic
1995 if ($lang && $lang->autodep ne 'no')
1997 my $depfile = $object;
1998 $depfile =~ s/\.([^.]*)$/.P$1/;
1999 $depfile =~ s/\$\(OBJEXT\)$/o/;
2000 $dep_files{'$(DEPDIR)/' . $depfile} = 1;
2008 # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
2009 # $OBJ, $PARENT, $TOPPARENT)
2010 # ---------------------------------------------------------------------
2011 # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
2014 # $VAR is the name of the _SOURCES variable
2015 # $OBJVAR is the name of the _OBJECTS
2016 # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
2017 # work done to determine the linker will be).
2018 # $ONE_FILE is the canonical (transformed) name of object to build
2019 # $OBJ is the object extension (ie either `.o' or `$o'.
2020 # $PARENT is the variable in which $VAR is used, or $VAR if not applicable.
2021 # $TOPPARENT is the _SOURCES variable being processed.
2023 # Result is a boolean, true if a linker is needed to deal with the objects.
2025 # %linkers_used, %vars_scanned, @substfroms and @substtos should be cleared
2027 # %linkers_used variable will be set to contain the linkers desired.
2028 # %vars_scanned will be used to check for recursive definitions.
2029 # @substfroms and @substtos will be used to keep a stack of variable
2030 # substitutions to be applied.
2032 sub define_objects_from_sources ($$$$$$$)
2034 my ($var, $objvar, $nodefine, $one_file, $obj, $parent, $topparent) = @_;
2036 if (defined $vars_scanned{$var})
2038 &am_line_error ($var, "variable `$var' recursively defined");
2041 $vars_scanned{$var} = 1;
2043 my $needlinker = "";
2044 foreach my $cond (variable_conditions ($var))
2047 foreach my $val (&variable_value_as_list ($var, $cond, $parent))
2049 if ($val =~ /^\$\{([^}]*)\}$/ || $val =~ /^\$\(([^)]*)\)$/)
2051 # Handle a sub variable
2054 # If the user uses a losing variable name, just ignore it.
2055 # This isn't ideal, but people have requested it.
2056 next if ($subvar =~ /\@.*\@/);
2058 # See if the variable is actually a substitution reference
2061 if ($subvar =~ /$SUBST_REF_PATTERN/o)
2065 ($from = $2) =~ s/(\W)/\\$1/g;
2067 push @substfroms, $from;
2068 push @substtos, $to;
2070 my $subobjvar = subobjname ($subvar);
2071 push (@result, '$('. $subobjvar . ')');
2073 my $temp = define_objects_from_sources ($subvar, $subobjvar,
2074 $nodefine, $one_file,
2075 $obj, $var, $topparent);
2076 $needlinker ||= $temp;
2083 my $substnum=$#substfroms;
2084 while ($substnum >= 0)
2086 $val =~ s/$substfroms[$substnum]$/$substtos[$substnum]/
2087 if defined $substfroms[$substnum];
2092 &handle_single_transform_list ($var, $topparent, $one_file, $obj, $val);
2093 push (@result, @transformed);
2094 $needlinker = "true" if @transformed;
2098 # Define _OBJECTS conditionally.
2099 define_pretty_variable ($objvar, $cond, (@result))
2103 delete $vars_scanned{$var};
2109 # subobjname ($VARNAME)
2110 # ---------------------
2111 # Return a name for an object variable.
2114 # $VARNAME is the name of the variable the object variable is being
2117 # This function also looks at @substfroms and @substtos to determine any
2118 # substitutions to be performed on the object variable.
2120 # The name returned is unique for the combination of $varname and
2121 # substitutions to be performed.
2126 my $substnum=$#substfroms;
2127 while ($substnum >= 0)
2129 if (defined $substfroms[$substnum] &&
2130 ($substfroms[$substnum] || $substtos[$substnum]))
2132 $key .= ":" . $substfroms[$substnum] . "=" . $substtos[$substnum];
2137 my $num = $substnums{$key};
2140 $num = keys(%substnums) + 1;
2141 $substnums{$key} = $num;
2144 return "am__objects_$num";
2148 # Handle SOURCE->OBJECT transform for one program or library.
2150 # canonical (transformed) name of object to build
2151 # actual name of object to build
2152 # object extension (ie either `.o' or `$o'.
2153 # Return result is name of linker variable that must be used.
2154 # Empty return means just use `LINK'.
2155 sub handle_source_transform
2157 # one_file is canonical name. unxformed is given name. obj is
2159 my ($one_file, $unxformed, $obj) = @_;
2163 if (&variable_defined ($one_file . "_OBJECTS"))
2165 &am_line_error ($one_file . '_OBJECTS',
2166 $one_file . '_OBJECTS', 'should not be defined');
2167 # No point in continuing.
2174 foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
2175 'dist_EXTRA_', 'nodist_EXTRA_')
2177 my $var = $prefix . $one_file . "_SOURCES";
2179 if !variable_defined ($var);
2181 # We are going to define _OBJECTS variables using the prefix.
2182 # Then we glom them all together. So we can't use the null
2183 # prefix here as we need it later.
2184 my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
2186 # Keep track of which prefixes we saw.
2187 $used_pfx{$xpfx} = 1
2188 unless $prefix =~ /EXTRA_/;
2190 push (@sources, '$(' . $prefix . $one_file . "_SOURCES)");
2191 push (@dist_sources, '$(' . $prefix . $one_file . "_SOURCES)")
2192 unless $prefix =~ /^nodist_/;
2197 my $temp = define_objects_from_sources ($var,
2198 $xpfx . $one_file . '_OBJECTS',
2199 $prefix =~ /EXTRA_/,
2200 $one_file, $obj, $var, $var);
2201 $needlinker ||= $temp;
2205 $linker ||= &resolve_linker (%linkers_used);
2208 my @keys = sort keys %used_pfx;
2209 if (scalar @keys == 0)
2211 &define_variable ($one_file . "_SOURCES", $unxformed . ".c");
2212 push (@sources, $unxformed . '.c');
2213 push (@dist_sources, $unxformed . '.c');
2217 &handle_single_transform_list ($one_file . '_SOURCES',
2218 $one_file . '_SOURCES',
2221 $linker ||= &resolve_linker (%linkers_used);
2222 define_pretty_variable ($one_file . "_OBJECTS", '', @result)
2226 grep ($_ = '$(' . $_ . $one_file . '_OBJECTS)', @keys);
2227 define_pretty_variable ($one_file . '_OBJECTS', '', @keys);
2230 # If we want to use `LINK' we must make sure it is defined.
2240 # handle_lib_objects ($XNAME, $VAR)
2241 # ---------------------------------
2242 # Special-case @ALLOCA@ and @LIBOBJS@ in _LDADD or _LIBADD variables.
2243 # Also, generate _DEPENDENCIES variable if appropriate.
2245 # transformed name of object being built, or empty string if no object
2246 # name of _LDADD/_LIBADD-type variable to examine
2247 # Returns 1 if LIBOBJS seen, 0 otherwise.
2248 sub handle_lib_objects
2250 my ($xname, $var) = @_;
2252 &prog_error ("handle_lib_objects: $var undefined")
2253 if ! &variable_defined ($var);
2256 foreach my $cond (variable_conditions_recursive ($var))
2258 if (&handle_lib_objects_cond ($xname, $var, $cond))
2266 # Subroutine of handle_lib_objects: handle a particular condition.
2267 sub handle_lib_objects_cond
2269 my ($xname, $var, $cond) = @_;
2271 # We recognize certain things that are commonly put in LIBADD or
2275 my $seen_libobjs = 0;
2278 foreach my $lsearch (&variable_value_as_list_recursive ($var, $cond))
2280 # Skip -lfoo and -Ldir; these are explicitly allowed.
2281 next if $lsearch =~ /^-[lL]/;
2282 if (! $flagvar && $lsearch =~ /^-/)
2284 if ($var =~ /^(.*)LDADD$/)
2286 # Skip -dlopen and -dlpreopen; these are explicitly allowed.
2287 next if $lsearch =~ /^-dl(pre)?open$/;
2288 &am_line_error ($var, "linker flags such as `$lsearch' belong in `${1}LDFLAGS");
2292 # Only get this error once.
2294 &am_line_error ($var, "linker flags such as `$lsearch' belong in `${1}LDFLAGS");
2298 # Assume we have a file of some sort, and push it onto the
2299 # dependency list. Autoconf substitutions are not pushed;
2300 # rarely is a new dependency substituted into (eg) foo_LDADD
2301 # -- but "bad things (eg -lX11) are routinely substituted.
2302 # Note that LIBOBJS and ALLOCA are exceptions to this rule,
2303 # and handled specially below.
2304 push (@dep_list, $lsearch)
2305 unless $lsearch =~ /^\@.*\@$/;
2307 # Automatically handle @LIBOBJS@ and @ALLOCA@. Basically this
2308 # means adding entries to dep_files.
2309 if ($lsearch =~ /^\@(LT)?LIBOBJS\@$/)
2311 my $lt = $1 ? $1 : '';
2312 my $myobjext = ($1 ? 'l' : '') . 'o';
2314 push (@dep_list, $lsearch);
2316 if (! keys %libsources
2317 && ! &variable_defined ($lt . 'LIBOBJS'))
2319 &am_line_error ($var, "\@$lt" . "LIBOBJS\@ seen but never set in `$configure_ac'");
2322 foreach my $iter (keys %libsources)
2324 if ($iter =~ /\.([cly])$/)
2326 &saw_extension ($1);
2327 &saw_extension ('c');
2330 if ($iter =~ /\.h$/)
2332 &require_file_with_line ($var, $FOREIGN, $iter);
2334 elsif ($iter ne 'alloca.c')
2336 my $rewrite = $iter;
2337 $rewrite =~ s/\.c$/.P$myobjext/;
2338 $dep_files{'$(DEPDIR)/' . $rewrite} = 1;
2339 ($rewrite = $iter) =~ s/(\W)/\\$1/g;
2340 $rewrite = "^" . $rewrite . "\$";
2341 # Only require the file if it is not a built source.
2342 if (! &variable_defined ('BUILT_SOURCES')
2343 || ! grep (/$rewrite/,
2344 &variable_value_as_list_recursive (
2345 'BUILT_SOURCES', 'all')))
2347 &require_file_with_line ($var, $FOREIGN, $iter);
2352 elsif ($lsearch =~ /^\@(LT)?ALLOCA\@$/)
2354 my $lt = $1 ? $1 : '';
2355 my $myobjext = ($1 ? 'l' : '') . 'o';
2357 push (@dep_list, $lsearch);
2358 &am_line_error ($var,
2359 "\@$lt" . "ALLOCA\@ seen but `AC_FUNC_ALLOCA' not in `$configure_ac'")
2360 if ! defined $libsources{'alloca.c'};
2361 $dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
2362 &require_file_with_line ($var, $FOREIGN, 'alloca.c');
2363 &saw_extension ('c');
2367 if ($xname ne '' && ! &variable_defined ($xname . '_DEPENDENCIES', $cond))
2369 define_pretty_variable ($xname . '_DEPENDENCIES', $cond, @dep_list);
2372 return $seen_libobjs;
2375 # Canonicalize the input parameter
2379 $string =~ tr/A-Za-z0-9_\@/_/c;
2383 # Canonicalize a name, and check to make sure the non-canonical name
2384 # is never used. Returns canonical name. Arguments are name and a
2385 # list of suffixes to check for.
2386 sub check_canonical_spelling
2388 my ($name, @suffixes) = @_;
2390 my $xname = &canonicalize ($name);
2391 if ($xname ne $name)
2393 foreach my $xt (@suffixes)
2395 &am_line_error ("$name$xt",
2396 "invalid variable `$name$xt'; "
2397 . "should be `$xname$xt'")
2398 if &variable_defined ("$name$xt");
2408 # Set up the compile suite.
2409 sub handle_compile ()
2412 unless $get_object_extension_was_run;
2415 my $default_includes = '';
2416 if (! defined $options{'nostdinc'})
2418 $default_includes = ' -I. -I$(srcdir)';
2420 if (&variable_defined ('CONFIG_HEADER'))
2422 foreach my $hdr (split (' ', &variable_value ('CONFIG_HEADER')))
2424 $default_includes .= ' -I' . dirname ($hdr);
2429 my (@mostly_rms, @dist_rms);
2430 foreach my $item (sort keys %compile_clean_files)
2432 if ($compile_clean_files{$item} == $MOSTLY_CLEAN)
2434 push (@mostly_rms, "\t-rm -f $item");
2436 elsif ($compile_clean_files{$item} == $DIST_CLEAN)
2438 push (@dist_rms, "\t-rm -f $item");
2442 &prog_error ("invalid entry in \%compile_clean_files");
2446 my ($coms, $vars, $rules) =
2447 &file_contents_internal (1, "$libdir/am/compile.am",
2448 ('DEFAULT_INCLUDES' => $default_includes,
2449 'MOSTLYRMS' => join ("\n", @mostly_rms),
2450 'DISTRMS' => join ("\n", @dist_rms)));
2451 $output_vars .= $vars;
2452 $output_rules .= "$coms$rules";
2454 # Check for automatic de-ANSI-fication.
2455 if (defined $options{'ansi2knr'})
2457 if (! $am_c_prototypes)
2459 &am_line_error ('AUTOMAKE_OPTIONS',
2460 "option `ansi2knr' in use but `AM_C_PROTOTYPES' not in `$configure_ac'");
2461 &keyed_aclocal_warning ('AM_C_PROTOTYPES');
2462 # Only give this error once.
2463 $am_c_prototypes = 1;
2466 # topdir is where ansi2knr should be.
2467 if ($options{'ansi2knr'} eq 'ansi2knr')
2469 # Only require ansi2knr files if they should appear in
2471 &require_file_with_line ('AUTOMAKE_OPTIONS', $FOREIGN,
2472 'ansi2knr.c', 'ansi2knr.1');
2474 # ansi2knr needs to be built before subdirs, so unshift it.
2475 unshift (@all, '$(ANSI2KNR)');
2478 my $ansi2knr_dir = '';
2479 $ansi2knr_dir = dirname ($options{'ansi2knr'})
2480 if $options{'ansi2knr'} ne 'ansi2knr';
2482 $output_rules .= &file_contents ('ansi2knr',
2483 ('ANSI2KNR-DIR' => $ansi2knr_dir));
2490 # Handle libtool rules.
2493 return unless $seen_libtool;
2495 # libtool requires some files, but only at top level.
2496 &require_conf_file_with_conf_line ($libtool_line, $FOREIGN,
2498 if $relative_dir eq '.';
2500 # Output the libtool compilation rules.
2501 $output_rules .= &file_contents ('libtool');
2504 # handle_programs ()
2505 # ------------------
2506 # Handle C programs.
2509 my @proglist = &am_install_var ('progs', 'PROGRAMS',
2510 'bin', 'sbin', 'libexec', 'pkglib',
2512 return if ! @proglist;
2514 my $seen_libobjs = 0;
2515 foreach my $one_file (@proglist)
2517 my $obj = &get_object_extension ($one_file);
2519 # Canonicalize names and check for misspellings.
2520 my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
2521 '_SOURCES', '_OBJECTS',
2524 my $linker = &handle_source_transform ($xname, $one_file, $obj);
2527 if (&variable_defined ($xname . "_LDADD"))
2529 if (&handle_lib_objects ($xname, $xname . '_LDADD'))
2537 # User didn't define prog_LDADD override. So do it.
2538 &define_variable ($xname . '_LDADD', '$(LDADD)');
2540 # This does a bit too much work. But we need it to
2541 # generate _DEPENDENCIES when appropriate.
2542 if (&variable_defined ('LDADD'))
2544 if (&handle_lib_objects ($xname, 'LDADD'))
2549 elsif (! &variable_defined ($xname . '_DEPENDENCIES'))
2551 &define_variable ($xname . '_DEPENDENCIES', '');
2556 if (&variable_defined ($xname . '_LIBADD'))
2558 &am_line_error ($xname . '_LIBADD',
2559 "use `" . $xname . "_LDADD', not `"
2560 . $xname . "_LIBADD'");
2563 if (! &variable_defined ($xname . '_LDFLAGS'))
2565 # Define the prog_LDFLAGS variable.
2566 &define_variable ($xname . '_LDFLAGS', '');
2569 # Determine program to use for link.
2571 if (&variable_defined ($xname . '_LINK'))
2573 $xlink = $xname . '_LINK';
2577 $xlink = $linker ? $linker : 'LINK';
2580 # If the resulting program lies into a subdirectory,
2581 # make sure this directory will exist.
2582 my $dirstamp = &require_build_directory_maybe ($one_file);
2584 # Don't add $(EXEEXT) if user already did.
2585 my $extension = ($one_file !~ /\$\(EXEEXT\)$/
2589 $output_rules .= &file_contents ('program',
2590 ('PROGRAM' => $one_file,
2591 'XPROGRAM' => $xname,
2593 'DIRSTAMP' => $dirstamp,
2594 'EXEEXT' => $extension));
2597 if (&variable_defined ('LDADD') && &handle_lib_objects ('', 'LDADD'))
2604 foreach my $one_file (@proglist)
2606 my $xname = &canonicalize ($one_file);
2608 if (&variable_defined ($xname . '_LDADD'))
2610 &check_libobjs_sources ($xname, $xname . '_LDADD');
2612 elsif (&variable_defined ('LDADD'))
2614 &check_libobjs_sources ($xname, 'LDADD');
2621 # handle_libraries ()
2622 # -------------------
2624 sub handle_libraries
2626 my @liblist = &am_install_var ('libs', 'LIBRARIES',
2627 'lib', 'pkglib', 'noinst', 'check');
2628 return if ! @liblist;
2630 my %valid = &am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
2632 if (! defined $configure_vars{'RANLIB'})
2634 foreach my $key (keys %valid)
2636 if (&variable_defined ($key . '_LIBRARIES'))
2638 &am_line_error ($key . '_LIBRARIES', "library used but `RANLIB' not defined in `$configure_ac'");
2639 # Only get this error once. If this is ever printed,
2641 $configure_vars{'RANLIB'} = 'BUG';
2647 my $seen_libobjs = 0;
2648 foreach my $onelib (@liblist)
2650 # Check that the library fits the standard naming convention.
2651 if (basename ($onelib) !~ /^lib.*\.a/)
2653 # FIXME should put line number here. That means mapping
2654 # from library name back to variable name.
2655 &am_error ("`$onelib' is not a standard library name");
2658 my $obj = &get_object_extension ($onelib);
2660 # Canonicalize names and check for misspellings.
2661 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
2662 '_OBJECTS', '_DEPENDENCIES',
2665 if (! &variable_defined ($xlib . '_AR'))
2667 &define_variable ($xlib . '_AR', '$(AR) cru');
2670 if (&variable_defined ($xlib . '_LIBADD'))
2672 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2679 # Generate support for conditional object inclusion in
2681 &define_variable ($xlib . "_LIBADD", '');
2684 if (&variable_defined ($xlib . '_LDADD'))
2686 &am_line_error ($xlib . '_LDADD',
2687 "use `" . $xlib . "_LIBADD', not `"
2688 . $xlib . "_LDADD'");
2691 # Make sure we at look at this.
2692 &examine_variable ($xlib . '_DEPENDENCIES');
2694 &handle_source_transform ($xlib, $onelib, $obj);
2696 # If the resulting library lies into a subdirectory,
2697 # make sure this directory will exist.
2698 my $dirstamp = &require_build_directory_maybe ($onelib);
2700 $output_rules .= &file_contents ('library',
2701 ('LIBRARY' => $onelib,
2702 'XLIBRARY' => $xlib,
2703 'DIRSTAMP' => $dirstamp));
2708 foreach my $onelib (@liblist)
2710 my $xlib = &canonicalize ($onelib);
2711 if (&variable_defined ($xlib . '_LIBADD'))
2713 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2720 # handle_ltlibraries ()
2721 # ---------------------
2722 # Handle shared libraries.
2723 sub handle_ltlibraries
2725 my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
2726 'noinst', 'lib', 'pkglib', 'check');
2727 return if ! @liblist;
2730 my %valid = &am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
2733 foreach my $key (keys %valid)
2735 if (&variable_defined ($key . '_LTLIBRARIES'))
2739 &am_line_error ($key . '_LTLIBRARIES', "library used but `LIBTOOL' not defined in `$configure_ac'");
2740 # Only get this error once. If this is ever printed,
2742 $configure_vars{'LIBTOOL'} = 'BUG';
2746 # Get the installation directory of each library.
2747 for (&variable_value_as_list_recursive ($key . '_LTLIBRARIES', 'all'))
2751 &am_error ("`$_' is already going to be installed in `$instdirs{$_}'");
2755 $instdirs{$_} = $key;
2761 my $seen_libobjs = 0;
2762 foreach my $onelib (@liblist)
2764 my $obj = &get_object_extension ($onelib);
2766 # Canonicalize names and check for misspellings.
2767 my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
2768 '_SOURCES', '_OBJECTS',
2771 if (! &variable_defined ($xlib . '_LDFLAGS'))
2773 # Define the lib_LDFLAGS variable.
2774 &define_variable ($xlib . '_LDFLAGS', '');
2777 # Check that the library fits the standard naming convention.
2778 my $libname_rx = "^lib.*\.la";
2779 if ((&variable_defined ($xlib . '_LDFLAGS')
2780 && grep (/-module/, &variable_value_as_list_recursive (
2781 $xlib . '_LDFLAGS', 'all')))
2782 || (&variable_defined ('LDFLAGS')
2783 && grep (/-module/, &variable_value_as_list_recursive (
2784 'LDFLAGS', 'all'))))
2786 # Relax name checking for libtool modules.
2787 $libname_rx = "\.la";
2789 if (basename ($onelib) !~ /$libname_rx$/)
2791 # FIXME this should only be a warning for foreign packages
2792 # FIXME should put line number here. That means mapping
2793 # from library name back to variable name.
2794 &am_error ("`$onelib' is not a standard libtool library name");
2797 if (&variable_defined ($xlib . '_LIBADD'))
2799 if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
2806 # Generate support for conditional object inclusion in
2808 &define_variable ($xlib . "_LIBADD", '');
2811 if (&variable_defined ($xlib . '_LDADD'))
2813 &am_line_error ($xlib . '_LDADD',
2814 "use `" . $xlib . "_LIBADD', not `"
2815 . $xlib . "_LDADD'");
2818 # Make sure we at look at this.
2819 &examine_variable ($xlib . '_DEPENDENCIES');
2821 my $linker = &handle_source_transform ($xlib, $onelib, $obj);
2823 # Determine program to use for link.
2825 if (&variable_defined ($xlib . '_LINK'))
2827 $xlink = $xlib . '_LINK';
2831 $xlink = $linker ? $linker : 'LINK';
2835 if ($instdirs{$onelib} eq 'EXTRA'
2836 || $instdirs{$onelib} eq 'noinst'
2837 || $instdirs{$onelib} eq 'check')
2839 # It's an EXTRA_ library, so we can't specify -rpath,
2840 # because we don't know where the library will end up.
2841 # The user probably knows, but generally speaking automake
2842 # doesn't -- and in fact configure could decide
2843 # dynamically between two different locations.
2848 $rpath = ('-rpath $(' . $instdirs{$onelib} . 'dir)');
2851 # If the resulting library lies into a subdirectory,
2852 # make sure this directory will exist.
2853 my $dirstamp = &require_build_directory_maybe ($onelib);
2855 $output_rules .= &file_contents ('ltlibrary',
2856 ('LTLIBRARY' => $onelib,
2857 'XLTLIBRARY' => $xlib,
2860 'DIRSTAMP' => $dirstamp));
2865 foreach my $onelib (@liblist)
2867 my $xlib = &canonicalize ($onelib);
2868 if (&variable_defined ($xlib . '_LIBADD'))
2870 &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
2876 # See if any _SOURCES variable were misspelled. Also, make sure that
2877 # EXTRA_ variables don't contain configure substitutions.
2880 foreach my $varname (keys %var_value)
2882 foreach my $primary ('_SOURCES', '_LIBADD', '_LDADD', '_LDFLAGS',
2885 if ($varname =~ /$primary$/ && ! $content_seen{$varname})
2887 &am_line_error ($varname,
2888 "invalid unused variable name: `$varname'");
2897 # NOTE we no longer automatically clean SCRIPTS, because it is
2898 # useful to sometimes distribute scripts verbatim. This happens
2899 # eg in Automake itself.
2900 &am_install_var ('-candist', 'scripts', 'SCRIPTS',
2901 'bin', 'sbin', 'libexec', 'pkgdata',
2906 # ($OUTFILE, $VFILE, @CLEAN_FILES)
2907 # &scan_texinfo_file ($FILENAME)
2908 # ------------------------------
2909 # $OUTFILE is the name of the info file produced by $FILENAME.
2910 # $VFILE is the name of the version.texi file used (empty if none).
2911 # @CLEAN_FILES is the list of by products (indexes etc.)
2912 sub scan_texinfo_file
2914 my ($filename) = @_;
2916 # These are always created, no matter whether indexes are used or not.
2917 my @clean_suffixes = ('aux', 'dvi', 'log', 'ps', 'toc',
2918 # grep new.*index texinfo.tex
2919 'cp', 'fn', 'ky', 'vr', 'tp', 'pg');
2921 # There are predefined indexes which don't follow the regular rules.
2922 my %predefined_index =
2925 'c' => 'cps', 'f' => 'fns', 'k' => 'kys',
2926 'v' => 'vrs', 't' => 'tps', 'p' => 'pgs'
2929 # There are commands which include a hidden index command.
2933 'fn' => 'fns', 'un' => 'fns',
2934 'typefn' => 'fns', 'typefun' => 'fns',
2935 'mac' => 'fns', 'spec' => 'fns',
2936 'op' => 'fns', 'typeop' => 'fns',
2937 'method' => 'fns', 'typemethod' => 'fns',
2939 'vr' => 'vrs', 'var' => 'vrs',
2940 'typevr' => 'vrs', 'typevar' => 'vrs',
2943 'ivar' => 'vrs', 'typeivar' => 'vrs',
2948 # Indexes stored into another one. In this case, the *.??s file
2950 my @syncodeindexes = ();
2952 my $texi = new IO::File ("< $filename");
2955 &am_error ("couldn't open `$filename': $!");
2958 print "$me: reading $filename\n" if $verbose;
2960 my ($outfile, $vfile);
2961 while ($_ = $texi->getline)
2963 if (/^\@setfilename +(\S+)/)
2966 if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
2968 &am_file_error ($filename, "$.: ",
2969 "output `$outfile' has unrecognized extension");
2973 # A "version.texi" file is actually any file whose name
2974 # matches "vers*.texi".
2975 elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
2980 # Try to find what are the indexes which are used.
2982 # Creating a new category of index.
2983 elsif (/^\@def(code)?index (\w+)/)
2985 push @clean_suffixes, $2;
2988 # Storing in a predefined index.
2989 elsif (/^\@([cfkvtp])index /)
2991 push @clean_suffixes, $predefined_index{$1};
2993 elsif (/^\@def(\w+) /)
2995 push @clean_suffixes, $hidden_index{$1}
2996 if defined $hidden_index{$1};
2999 # Merging an index into an another.
3000 elsif (/^\@syn(code)?index (\w+) (\w+)/)
3002 push @syncodeindexes, "$2s";
3003 push @clean_suffixes, "$3s";
3011 &am_error ("`$filename' missing \@setfilename");
3015 my $infobase = basename ($filename);
3016 $infobase =~ s/\.te?xi(nfo)?$//;
3017 # FIXME: I don't understand why, but I can't use "$infobase.$_" => 1.
3018 my %clean_files = map { "$infobase" . ".$_" => 1 } @clean_suffixes;
3019 grep { delete $clean_files{"$infobase.$_"} } @syncodeindexes;
3020 return ($outfile, $vfile, (sort keys %clean_files));
3024 # ($DO-SOMETHING, $TEXICLEANS)
3025 # handle_texinfo_helper ()
3027 # Handle all Texinfo source; helper for handle_texinfo
3028 sub handle_texinfo_helper
3030 &am_line_error ('TEXINFOS',
3031 "`TEXINFOS' is an anachronism; use `info_TEXINFOS'")
3032 if &variable_defined ('TEXINFOS');
3033 return (0, '') if (! &variable_defined ('info_TEXINFOS')
3034 && ! &variable_defined ('html_TEXINFOS'));
3036 if (&variable_defined ('html_TEXINFOS'))
3038 &am_line_error ('html_TEXINFOS',
3039 "HTML generation not yet supported");
3043 my @texis = &variable_value_as_list_recursive ('info_TEXINFOS', 'all');
3045 my (@info_deps_list, @dvis_list, @texi_deps);
3052 foreach my $info_cursor (@texis)
3054 my $infobase = $info_cursor;
3055 $infobase =~ s/\.(txi|texinfo|texi)$//;
3057 if ($infobase eq $info_cursor)
3059 # FIXME: report line number.
3060 &am_error ("texinfo file `$info_cursor' has unrecognized extension");
3063 $texi_suffixes{$1} = 1;
3065 # If 'version.texi' is referenced by input file, then include
3066 # automatic versioning capability.
3067 my ($out_file, $vtexi, @clean_files) =
3068 &scan_texinfo_file ("$relative_dir/$info_cursor")
3070 push (@texi_cleans, @clean_files);
3074 &am_error ("`$vtexi', included in `$info_cursor', also included in `$versions{$vtexi}'")
3075 if (defined $versions{$vtexi});
3076 $versions{$vtexi} = $info_cursor;
3078 # We number the stamp-vti files. This is doable since the
3079 # actual names don't matter much. We only number starting
3080 # with the second one, so that the common case looks nice.
3081 my $vti = ($done ? $done : 'vti');
3084 # This is ugly, but it is our historical practice.
3085 if ($config_aux_dir_set_in_configure_in)
3087 &require_conf_file_with_line ('info_TEXINFOS', $FOREIGN,
3092 &require_file_with_line ('info_TEXINFOS', $FOREIGN,
3097 if ($config_aux_dir_set_in_configure_in)
3099 $conf_dir = $config_aux_dir;
3100 $conf_dir .= '/' unless $conf_dir =~ /\/$/;
3104 $conf_dir = '$(srcdir)/';
3106 $output_rules .= &file_contents ('texi-vers',
3107 ('TEXI' => $info_cursor,
3110 'MDDIR' => $conf_dir));
3113 # If user specified file_TEXINFOS, then use that as explicit
3116 push (@texi_deps, $info_cursor);
3117 # Prefix with $(srcdir) because some version of make won't
3118 # work if the target has it and the dependency doesn't.
3119 push (@texi_deps, '$(srcdir)/' . $vtexi) if $vtexi;
3121 my $canonical = &canonicalize ($infobase);
3122 if (&variable_defined ($canonical . "_TEXINFOS"))
3124 push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
3125 &push_dist_common ('$(' . $canonical . '_TEXINFOS)');
3128 $output_rules .= ("\n" . $out_file . ": "
3129 . join (' ', @texi_deps)
3130 . "\n" . $infobase . ".dvi: "
3131 . join (' ', @texi_deps)
3134 push (@info_deps_list, $out_file);
3135 push (@dvis_list, $infobase . '.dvi');
3138 # Handle location of texinfo.tex.
3139 my $need_texi_file = 0;
3143 $texinfodir = '$(top_srcdir)/../texinfo';
3144 &define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex");
3146 elsif ($config_aux_dir_set_in_configure_in)
3148 $texinfodir = $config_aux_dir;
3149 &define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex");
3150 $need_texi_file = 2; # so that we require_conf_file later
3152 elsif (&variable_defined ('TEXINFO_TEX'))
3154 # The user defined TEXINFO_TEX so assume he knows what he is
3156 $texinfodir = ('$(srcdir)/'
3157 . dirname (&variable_value ('TEXINFO_TEX')));
3161 $texinfodir = '$(srcdir)';
3162 $need_texi_file = 1;
3165 foreach my $txsfx (sort keys %texi_suffixes)
3167 $output_rules .= &file_contents ('texibuild',
3168 ('TEXINFODIR' => $texinfodir,
3169 'SUFFIX' => $txsfx));
3173 my $texiclean = &pretty_print_internal ("", "\t ", @texi_cleans);
3175 push (@dist_targets, 'dist-info');
3177 if (! defined $options{'no-installinfo'})
3179 # Make sure documentation is made and installed first. Use
3180 # $(INFO_DEPS), not 'info', because otherwise recursive makes
3181 # get run twice during "make all".
3182 unshift (@all, '$(INFO_DEPS)');
3185 &define_variable ("INFO_DEPS", join (' ', @info_deps_list));
3186 &define_variable ("DVIS", join (' ', @dvis_list));
3187 # This next isn't strictly needed now -- the places that look here
3188 # could easily be changed to look in info_TEXINFOS. But this is
3189 # probably better, in case noinst_TEXINFOS is ever supported.
3190 &define_variable ("TEXINFOS", &variable_value ('info_TEXINFOS'));
3192 # Do some error checking. Note that this file is not required
3193 # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
3195 if ($need_texi_file && ! defined $options{'no-texinfo.tex'})
3197 if ($need_texi_file > 1)
3199 &require_conf_file_with_line ('info_TEXINFOS', $FOREIGN,
3204 &require_file_with_line ('info_TEXINFOS', $FOREIGN, 'texinfo.tex');
3208 return (1, $texiclean);
3213 # Handle all Texinfo source.
3216 my ($do_something, $texiclean) = handle_texinfo_helper ();
3217 $output_rules .= &file_contents ('texinfos',
3218 ('TEXICLEAN' => $texiclean,
3219 'LOCAL-TEXIS' => $do_something));
3222 # Handle any man pages.
3223 sub handle_man_pages
3225 &am_line_error ('MANS', "`MANS' is an anachronism; use `man_MANS'")
3226 if &variable_defined ('MANS');
3228 # Find all the sections in use. We do this by first looking for
3229 # "standard" sections, and then looking for any additional
3230 # sections used in man_MANS.
3231 my (%sections, %vlist);
3232 # We handle nodist_ for uniformity. man pages aren't distributed
3233 # by default so it isn't actually very important.
3234 foreach my $pfx ('', 'dist_', 'nodist_')
3236 # Add more sections as needed.
3237 foreach my $section ('0'..'9', 'n', 'l')
3239 if (&variable_defined ($pfx . 'man' . $section . '_MANS'))
3241 $sections{$section} = 1;
3242 $vlist{'$(' . $pfx . 'man' . $section . '_MANS)'} = 1;
3244 &push_dist_common ('$(' . $pfx . 'man' . $section . '_MANS)')
3249 if (&variable_defined ($pfx . 'man_MANS'))
3251 $vlist{'$(' . $pfx . 'man_MANS)'} = 1;
3252 foreach (&variable_value_as_list_recursive ($pfx . 'man_MANS', 'all'))
3254 # A page like `foo.1c' goes into man1dir.
3255 if (/\.([0-9a-z])([a-z]*)$/)
3261 &push_dist_common ('$(' . $pfx . 'man_MANS)')
3266 return unless %sections;
3268 # Now for each section, generate an install and unintall rule.
3269 # Sort sections so output is deterministic.
3270 foreach my $section (sort keys %sections)
3272 $output_rules .= &file_contents ('mans', ('SECTION' => $section));
3275 $output_vars .= &file_contents ('mans-vars',
3276 ('MANS' => join (' ', sort keys %vlist)));
3278 if (! defined $options{'no-installman'})
3280 push (@all, '$(MANS)');
3284 # Handle DATA variables.
3287 &am_install_var ('-noextra', '-candist', 'data', 'DATA',
3288 'data', 'sysconf', 'sharedstate', 'localstate',
3289 'pkgdata', 'noinst', 'check');
3296 if (&variable_defined ('SUBDIRS'))
3298 $output_rules .= ("tags-recursive:\n"
3299 . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
3300 # Never fail here if a subdir fails; it
3302 . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
3303 . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
3305 push (@tag_deps, 'tags-recursive');
3306 &depend ('.PHONY', 'tags-recursive');
3309 if (&saw_sources_p (1)
3310 || &variable_defined ('ETAGS_ARGS')
3314 foreach my $one_hdr (@config_headers)
3316 if ($relative_dir eq dirname ($one_hdr))
3318 # The config header is in this directory. So require it.
3319 $config .= ' ' if $config;
3320 $config .= basename ($one_hdr);
3323 $output_rules .= &file_contents ('tags',
3324 ('CONFIG' => $config,
3325 'DIRS' => join (' ', @tag_deps)));
3326 &examine_variable ('TAGS_DEPENDENCIES');
3328 elsif (&variable_defined ('TAGS_DEPENDENCIES'))
3330 &am_line_error ('TAGS_DEPENDENCIES',
3331 "doesn't make sense to define `TAGS_DEPENDENCIES' without sources or `ETAGS_ARGS'");
3335 # Every Makefile must define some sort of TAGS rule.
3336 # Otherwise, it would be possible for a top-level "make TAGS"
3337 # to fail because some subdirectory failed.
3338 $output_rules .= "tags: TAGS\nTAGS:\n\n";
3342 # Handle multilib support.
3345 if ($seen_multilib && $relative_dir eq '.')
3347 $output_rules .= &file_contents ('multilib');
3353 # &for_dist_common ($A, $B)
3354 # -------------------------
3355 # Subroutine for &handle_dist: sort files to dist.
3357 # We put README first because it then becomes easier to make a
3358 # Usenet-compliant shar file (in these, README must be first).
3360 # FIXME: do more ordering of files here.
3373 # handle_dist ($MAKEFILE)
3374 # -----------------------
3375 # Handle 'dist' target.
3378 my ($makefile) = @_;
3380 # `make dist' isn't used in a Cygnus-style tree.
3381 # Omit the rules so that people don't try to use them.
3382 return if $cygnus_mode;
3384 # Look for common files that should be included in distribution.
3385 # If the aux dir is set, and it does not have a Makefile.am, then
3386 # we check for these files there as well.
3389 if ($relative_dir eq '.'
3390 && $config_aux_dir_set_in_configure_in)
3392 ($auxdir = $config_aux_dir) =~ s,^\$\(top_srcdir\)/,,;
3393 if (! &is_make_dir ($auxdir))
3398 foreach my $cfile (@common_files)
3400 if (-f ($relative_dir . "/" . $cfile))
3402 &push_dist_common ($cfile);
3405 # Don't use `elsif' here because a file might meaningfully
3406 # appear in both directories.
3407 if ($check_aux && -f ($auxdir . '/' . $cfile))
3409 &push_dist_common ($auxdir . '/' . $cfile);
3413 # We might copy elements from $configure_dist_common to
3414 # %dist_common if we think we need to. If the file appears in our
3415 # directory, we would have discovered it already, so we don't
3416 # check that. But if the file is in a subdir without a Makefile,
3417 # we want to distribute it here if we are doing `.'. Ugly!
3418 if ($relative_dir eq '.')
3420 foreach my $file (split (' ' , $configure_dist_common))
3422 if (! &is_make_dir (dirname ($file)))
3424 &push_dist_common ($file);
3431 # Files to distributed. Don't use &variable_value_as_list_recursive
3432 # as it recursively expands `$(dist_pkgdata_DATA)' etc.
3433 check_variable_defined_unconditionally ('DIST_COMMON');
3434 my @dist_common = split (' ', variable_value ('DIST_COMMON', 'TRUE'));
3435 @dist_common = uniq (sort for_dist_common (@dist_common));
3436 pretty_print ('DIST_COMMON = ', "\t", @dist_common);
3438 # Now that we've processed DIST_COMMON, disallow further attempts
3440 $handle_dist_run = 1;
3442 # Scan EXTRA_DIST to see if we need to distribute anything from a
3443 # subdir. If so, add it to the list. I didn't want to do this
3444 # originally, but there were so many requests that I finally
3446 if (&variable_defined ('EXTRA_DIST'))
3448 # FIXME: This should be fixed to work with conditionals. That
3449 # will require only making the entries in %dist_dirs under the
3450 # appropriate condition. This is meaningful if the nature of
3451 # the distribution should depend upon the configure options
3453 foreach (&variable_value_as_list_recursive ('EXTRA_DIST', ''))
3456 next unless s,/+[^/]+$,,;
3462 # We have to check DIST_COMMON for extra directories in case the
3463 # user put a source used in AC_OUTPUT into a subdir.
3464 foreach (&variable_value_as_list_recursive ('DIST_COMMON', 'all'))
3467 next unless s,/+[^/]+$,,;
3472 # Rule to check whether a distribution is viable.
3473 my %transform = ('DISTCHECK-HOOK' => &target_defined ('distcheck-hook'),
3474 'GETTEXT' => $seen_gettext);
3476 # Prepend $(distdir) to each directory given.
3477 my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
3478 $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
3480 # If we have SUBDIRS, create all dist subdirectories and do
3482 if (&variable_defined ('SUBDIRS'))
3484 # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
3485 # to all possible directories, and use it. If DIST_SUBDIRS is
3486 # defined, just use it.
3487 my $dist_subdir_name;
3488 # Note that we check DIST_SUBDIRS first on purpose. At least
3489 # one project uses so many conditional subdirectories that
3490 # calling variable_conditionally_defined on SUBDIRS will cause
3491 # automake to grow to 150Mb. Sigh.
3492 if (&variable_defined ('DIST_SUBDIRS')
3493 || variable_conditionally_defined ('SUBDIRS'))
3495 $dist_subdir_name = 'DIST_SUBDIRS';
3496 if (! &variable_defined ('DIST_SUBDIRS'))
3498 define_pretty_variable
3499 ('DIST_SUBDIRS', '',
3500 uniq (&variable_value_as_list_recursive ('SUBDIRS', 'all')));
3505 $dist_subdir_name = 'SUBDIRS';
3506 # We always define this because that is what `distclean'
3508 define_pretty_variable ('DIST_SUBDIRS', '', '$(SUBDIRS)');
3511 $transform{'DIST_SUBDIR_NAME'} = $dist_subdir_name;
3514 # If the target `dist-hook' exists, make sure it is run. This
3515 # allows users to do random weird things to the distribution
3516 # before it is packaged up.
3517 push (@dist_targets, 'dist-hook')
3518 if &target_defined ('dist-hook');
3519 $transform{'DIST-TARGETS'} = join(' ', @dist_targets);
3521 # Defining $(DISTDIR).
3522 $transform{'DISTDIR'} = !&variable_defined('distdir');
3523 $transform{'TOP_DISTDIR'} = backname ($relative_dir);
3525 $output_rules .= &file_contents ('distdir', %transform);
3529 # Handle subdirectories.
3533 unless &variable_defined ('SUBDIRS');
3535 # Make sure each directory mentioned in SUBDIRS actually exists.
3536 foreach my $dir (&variable_value_as_list_recursive ('SUBDIRS', 'all'))
3538 # Skip directories substituted by configure.
3539 next if $dir =~ /^\@.*\@$/;
3541 if (! -d $am_relative_dir . '/' . $dir)
3543 &am_line_error ('SUBDIRS',
3544 "required directory $am_relative_dir/$dir does not exist");
3548 &am_line_error ('SUBDIRS', "directory should not contain `/'")
3552 $output_rules .= &file_contents ('subdirs');
3553 variable_pretty_output ('RECURSIVE_TARGETS', 'TRUE');
3557 # ($REGEN, @DEPENDENCIES)
3560 # If aclocal.m4 creation is automated, return the list of its dependencies.
3563 my $regen_aclocal = 0;
3566 unless $relative_dir eq '.';
3568 &examine_variable ('CONFIG_STATUS_DEPENDENCIES');
3569 &examine_variable ('CONFIGURE_DEPENDENCIES');
3571 if (-f 'aclocal.m4')
3573 &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4');
3574 &push_dist_common ('aclocal.m4');
3576 my $aclocal = new IO::File ("< aclocal.m4");
3579 my $line = $aclocal->getline;
3582 if ($line =~ 'generated automatically by aclocal')
3591 if (-f 'acinclude.m4')
3594 push @ac_deps, 'acinclude.m4';
3597 if (&variable_defined ('ACLOCAL_M4_SOURCES'))
3599 push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
3601 elsif (&variable_defined ('ACLOCAL_AMFLAGS'))
3603 # Scan all -I directories for m4 files. These are our
3605 my $examine_next = 0;
3606 foreach my $amdir (&variable_value_as_list_recursive ('ACLOCAL_AMFLAGS', ''))
3611 if ($amdir !~ /^\// && -d $amdir)
3613 foreach my $ac_dep (&my_glob ($amdir . '/*.m4'))
3615 $ac_dep =~ s/^\.\/+//;
3616 push (@ac_deps, $ac_dep)
3617 unless $ac_dep eq "aclocal.m4"
3618 || $ac_dep eq "acinclude.m4";
3622 elsif ($amdir eq '-I')
3629 # Note that it might be possible that aclocal.m4 doesn't exist but
3630 # should be auto-generated. This case probably isn't very
3633 return ($regen_aclocal, @ac_deps);
3636 # Rewrite a list of input files into a form suitable to put on a
3637 # dependency list. The idea is that if an input file has a directory
3638 # part the same as the current directory, then the directory part is
3639 # simply removed. But if the directory part is different, then
3640 # $(top_srcdir) is prepended. Among other things, this is used to
3641 # generate the dependency list for the output files generated by
3642 # AC_OUTPUT. Consider what the dependencies should look like in this
3644 # AC_OUTPUT(src/out:src/in1:lib/in2)
3645 # The first argument, ADD_SRCDIR, is 1 if $(top_srcdir) should be added.
3646 # If 0 then files that require this addition will simply be ignored.
3647 sub rewrite_inputs_into_dependencies
3649 my ($add_srcdir, @inputs) = @_;
3652 foreach my $single (@inputs)
3654 if (dirname ($single) eq $relative_dir)
3656 push (@newinputs, basename ($single));
3660 push (@newinputs, '$(top_srcdir)/' . $single);
3667 # Handle remaking and configure stuff.
3668 # We need the name of the input file, to do proper remaking rules.
3669 sub handle_configure
3671 my ($local, $input, @secondary_inputs) = @_;
3673 my $input_base = basename ($input);
3674 my $local_base = basename ($local);
3676 my $amfile = $input_base . '.am';
3677 # We know we can always add '.in' because it really should be an
3678 # error if the .in was missing originally.
3679 my $infile = '$(srcdir)/' . $input_base . '.in';
3680 my $colon_infile = '';
3681 if ($local ne $input || @secondary_inputs)
3683 $colon_infile = ':' . $input . '.in';
3685 $colon_infile .= ':' . join (':', @secondary_inputs)
3686 if @secondary_inputs;
3688 my @rewritten = &rewrite_inputs_into_dependencies (1, @secondary_inputs);
3690 my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4 ();
3693 &file_contents ('configure',
3697 => join (' ', @rewritten),
3699 => ((($relative_dir eq '.') ? '$@' : '$(subdir)/$@')
3704 => join (' ', @include_stack),
3708 => $cygnus_mode ? 'cygnus' : $strictness_name,
3710 => $cmdline_use_dependencies ? '' : ' --ignore-deps',
3711 'MAKEFILE-AM-SOURCES'
3712 => "$input$colon_infile",
3714 => $regen_aclocal_m4,
3716 => join (' ', @aclocal_m4_deps)));
3718 if ($relative_dir eq '.')
3720 &push_dist_common ('acconfig.h')
3724 # If we have a configure header, require it.
3725 my @local_fullnames = @config_fullnames;
3726 my @local_names = @config_names;
3728 my $distclean_config = '';
3729 foreach my $one_hdr (@config_headers)
3731 my $one_fullname = shift (@local_fullnames);
3732 my $one_name = shift (@local_names);
3734 my $header_dir = dirname ($one_name);
3736 # If the header is in the current directory we want to build
3737 # the header here. Otherwise, if we're at the topmost
3738 # directory and the header's directory doesn't have a
3739 # Makefile, then we also want to build the header.
3740 if ($relative_dir eq $header_dir
3741 || ($relative_dir eq '.' && ! &is_make_dir ($header_dir)))
3743 my ($cn_sans_dir, $stamp_dir);
3744 if ($relative_dir eq $header_dir)
3746 $cn_sans_dir = basename ($one_name);
3751 $cn_sans_dir = $one_name;
3752 if ($header_dir eq '.')
3758 $stamp_dir = $header_dir . '/';
3762 # Compute relative path from directory holding output
3763 # header to directory holding input header. FIXME:
3764 # doesn't handle case where we have multiple inputs.
3766 if (dirname ($one_hdr) eq $relative_dir)
3768 $ch_sans_dir = basename ($one_hdr);
3772 $ch_sans_dir = backname ($relative_dir) . '/' . $one_hdr;
3775 &require_file_with_conf_line ($config_header_line,
3776 $FOREIGN, $ch_sans_dir);
3778 # Header defined and in this directory.
3780 if (-f $one_name . '.top')
3782 push (@files, "${cn_sans_dir}.top");
3784 if (-f $one_name . '.bot')
3786 push (@files, "${cn_sans_dir}.bot");
3789 &push_dist_common (@files);
3791 # For now, acconfig.h can only appear in the top srcdir.
3792 if (-f 'acconfig.h')
3794 push (@files, '$(top_srcdir)/acconfig.h');
3797 my $stamp_name = 'stamp-h';
3798 $stamp_name .= "${hdr_index}";
3800 my $out_dir = dirname ($ch_sans_dir);
3803 &file_contents ('remake-hdr',
3804 ('FILES' => join (' ', @files),
3805 'CONFIG_HEADER' => $cn_sans_dir,
3806 'CONFIG_HEADER_IN' => $ch_sans_dir,
3807 'CONFIG_HEADER_FULL' => $one_fullname,
3808 'STAMP' => "$stamp_dir$stamp_name",
3809 'SRC_STAMP' => "$out_dir/$stamp_name"));
3811 &create ("${relative_dir}/${out_dir}/${stamp_name}.in");
3812 &require_file_with_conf_line ($config_header_line, $FOREIGN,
3813 "${out_dir}/${stamp_name}.in");
3815 $distclean_config .= ' ' if $distclean_config;
3816 $distclean_config .= $cn_sans_dir;
3820 if ($distclean_config)
3822 $output_rules .= &file_contents ('clean-hdr',
3823 ('FILES' => $distclean_config));
3826 # Set location of mkinstalldirs.
3827 &define_variable ('mkinstalldirs',
3828 ('$(SHELL) ' . $config_aux_dir . '/mkinstalldirs'));
3830 &am_line_error ('CONFIG_HEADER',
3831 "`CONFIG_HEADER' is an anachronism; now determined from `$configure_ac'")
3832 if &variable_defined ('CONFIG_HEADER');
3834 my $config_header = '';
3835 foreach my $one_name (@config_names)
3837 # Generate CONFIG_HEADER define.
3839 if ($relative_dir eq dirname ($one_name))
3841 $one_hdr = basename ($one_name);
3845 $one_hdr = "\$(top_builddir)/${one_name}";
3848 $config_header .= ' ' if $config_header;
3849 $config_header .= $one_hdr;
3853 &define_variable ("CONFIG_HEADER", $config_header);
3856 # Now look for other files in this directory which must be remade
3857 # by config.status, and generate rules for them.
3858 my @actual_other_files = ();
3859 foreach my $lfile (@other_input_files)
3862 my (@inputs, @rewritten_inputs);
3863 my ($need_rewritten);
3864 if ($lfile =~ /^([^:]*):(.*)$/)
3866 # This is the ":" syntax of AC_OUTPUT.
3868 $local = basename ($file);
3869 @inputs = split (':', $2);
3870 @rewritten_inputs = &rewrite_inputs_into_dependencies (1, @inputs);
3871 $need_rewritten = 1;
3877 $local = basename ($file);
3878 @inputs = ($file . '.in');
3880 &rewrite_inputs_into_dependencies (1, @inputs);
3881 $need_rewritten = 0;
3884 # Make sure the dist directory for each input file is created.
3885 # We only have to do this at the topmost level though. This
3886 # is a bit ugly but it easier than spreading out the logic,
3887 # especially in cases like AC_OUTPUT(foo/out:bar/in), where
3888 # there is no Makefile in bar/.
3889 if ($relative_dir eq '.')
3893 $dist_dirs{dirname ($_)} = 1;
3897 # We skip any automake input files, as they are handled
3898 # elsewhere. We also skip files that aren't in this
3899 # directory. However, if the file's directory does not have a
3900 # Makefile, and we are currently doing `.', then we create a
3901 # rule to rebuild the file in the subdir.
3902 next if -f $file . '.am';
3903 my $fd = dirname ($file);
3904 if ($fd ne $relative_dir)
3906 if ($relative_dir eq '.' && ! &is_make_dir ($fd))
3916 # Some users have been tempted to put `stamp-h' in the
3917 # AC_OUTPUT line. This won't do the right thing, so we
3918 # explicitly fail here.
3919 if ($local eq 'stamp-h')
3921 # FIXME: allow real filename.
3922 &am_conf_error ($configure_ac, $ac_output_line,
3923 'stamp-h should not appear in AC_OUTPUT');
3927 $output_rules .= ($local . ': '
3928 . '$(top_builddir)/config.status '
3929 . join (' ', @rewritten_inputs) . "\n"
3931 . 'cd $(top_builddir) && CONFIG_FILES='
3932 . ($relative_dir eq '.' ? '' : '$(subdir)/')
3933 . '$@' . ($need_rewritten
3934 ? (':' . join (':', @inputs))
3936 . ' CONFIG_HEADERS= CONFIG_LINKS= $(SHELL) ./config.status'
3938 push (@actual_other_files, $local);
3940 # Require all input files.
3941 &require_file_with_conf_line ($ac_output_line, $FOREIGN,
3942 &rewrite_inputs_into_dependencies (0, @inputs));
3945 # These files get removed by "make clean".
3946 define_pretty_variable ('CONFIG_CLEAN_FILES', '', @actual_other_files);
3952 my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
3953 'oldinclude', 'pkginclude',
3957 next unless /\.(.*)$/;
3958 &saw_extension ($1);
3964 return if ! $seen_gettext || $relative_dir ne '.';
3966 if (! &variable_defined ('SUBDIRS'))
3969 ("AM_GNU_GETTEXT used but SUBDIRS not defined");
3973 my @subdirs = &variable_value_as_list_recursive ('SUBDIRS', 'all');
3974 &am_line_error ('SUBDIRS',
3975 "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
3976 if ! grep ('po', @subdirs);
3977 &am_line_error ('SUBDIRS',
3978 "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
3979 if ! grep ('intl', @subdirs);
3981 &require_file_with_conf_line ($ac_gettext_line, $GNU, 'ABOUT-NLS');
3984 # Handle footer elements.
3987 # NOTE don't use define_pretty_variable here, because
3988 # $contents{...} is already defined.
3989 $output_vars .= 'SOURCES = ' . variable_value ('SOURCES') . "\n\n"
3990 if variable_value ('SOURCES');
3993 &am_line_error ('.SUFFIXES',
3994 "use variable `SUFFIXES', not target `.SUFFIXES'")
3995 if target_defined ('.SUFFIXES');
3997 # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
3998 # before .SUFFIXES. So we make sure that .SUFFIXES appears before
3999 # anything else, by sticking it right after the default: target.
4000 $output_header .= ".SUFFIXES:\n";
4001 if (@suffixes || &variable_defined ('SUFFIXES'))
4003 # Make sure suffixes has unique elements. Sort them to ensure
4004 # the output remains consistent. However, $(SUFFIXES) is
4005 # always at the start of the list, unsorted. This is done
4006 # because make will choose rules depending on the ordering of
4007 # suffixes, and this lets the user have some control. Push
4008 # actual suffixes, and not $(SUFFIXES). Some versions of make
4009 # do not like variable substitutions on the .SUFFIXES line.
4010 my @user_suffixes = (&variable_defined ('SUFFIXES')
4011 ? &variable_value_as_list_recursive ('SUFFIXES', '')
4014 my %suffixes = map { $_ => 1 } @suffixes;
4015 delete @suffixes{@user_suffixes};
4017 $output_header .= (".SUFFIXES: "
4018 . join (' ', @user_suffixes, sort keys %suffixes)
4022 $output_trailer .= file_contents ('footer');
4025 # Deal with installdirs target.
4026 sub handle_installdirs ()
4029 &file_contents ('install',
4031 => variable_value ('_am_installdirs') || ''));
4035 # Deal with all and all-am.
4038 my ($makefile) = @_;
4042 # Put this at the beginning for the sake of non-GNU makes. This
4043 # is still wrong if these makes can run parallel jobs. But it is
4045 unshift (@all, basename ($makefile));
4047 foreach my $one_name (@config_names)
4049 push (@all, basename ($one_name))
4050 if dirname ($one_name) eq $relative_dir;
4053 # Install `all' hooks.
4054 if (&target_defined ("all-local"))
4056 push (@all, "all-local");
4057 &depend ('.PHONY', "all-local");
4060 &pretty_print_rule ("all-am:", "\t\t", @all);
4061 &depend ('.PHONY', 'all-am', 'all');
4066 my @local_headers = ();
4067 push @local_headers, '$(BUILT_SOURCES)'
4068 if &variable_defined ('BUILT_SOURCES');
4069 foreach my $one_name (@config_names)
4071 push @local_headers, basename ($one_name)
4072 if dirname ($one_name) eq $relative_dir;
4077 # We need to make sure config.h is built before we recurse.
4078 # We also want to make sure that built sources are built
4079 # before any ordinary `all' targets are run. We can't do this
4080 # by changing the order of dependencies to the "all" because
4081 # that breaks when using parallel makes. Instead we handle
4082 # things explicitly.
4083 $output_all .= ("all: " . join (' ', @local_headers)
4085 . '$(MAKE) $(AM_MAKEFLAGS) '
4086 . (&variable_defined ('SUBDIRS')
4087 ? 'all-recursive' : 'all-am')
4092 $output_all .= "all: " . (&variable_defined ('SUBDIRS')
4093 ? 'all-recursive' : 'all-am') . "\n\n";
4098 # Handle check merge target specially.
4099 sub do_check_merge_target
4101 if (&target_defined ('check-local'))
4103 # User defined local form of target. So include it.
4104 push (@check_tests, 'check-local');
4105 &depend ('.PHONY', 'check-local');
4108 # In --cygnus mode, check doesn't depend on all.
4111 # Just run the local check rules.
4112 &pretty_print_rule ('check-am:', "\t\t", @check);
4116 # The check target must depend on the local equivalent of
4117 # `all', to ensure all the primary targets are built. Then it
4118 # must build the local check rules.
4119 $output_rules .= "check-am: all-am\n";
4120 &pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4124 &pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
4128 &depend ('.PHONY', 'check', 'check-am');
4129 $output_rules .= ("check: "
4130 . (&variable_defined ('SUBDIRS')
4131 ? 'check-recursive' : 'check-am')
4135 # Handle all 'clean' targets.
4140 # Don't include `MAINTAINER'; it is handled specially below.
4141 foreach my $name ('MOSTLY', '', 'DIST')
4143 $transform{"${name}CLEAN"} = &variable_defined ("${name}CLEANFILES");
4146 # Built sources are automatically removed by maintainer-clean.
4147 push (@maintainer_clean_files, '$(BUILT_SOURCES)')
4148 if &variable_defined ('BUILT_SOURCES');
4149 push (@maintainer_clean_files, '$(MAINTAINERCLEANFILES)')
4150 if &variable_defined ('MAINTAINERCLEANFILES');
4152 $output_rules .= &file_contents ('clean',
4155 # Join with no space to avoid
4156 # spurious `test -z' success at
4158 => join ('', @maintainer_clean_files),
4160 # A space is required in the join here.
4161 => join (' ', @maintainer_clean_files)));
4165 # &depend ($CATEGORY, @DEPENDENDEES)
4166 # ----------------------------------
4167 # The target $CATEGORY depends on @DEPENDENDEES.
4170 my ($category, @dependendees) = @_;
4172 push (@{$dependencies{$category}}, @dependendees);
4177 # &target_cmp ($A, $B)
4178 # --------------------
4179 # Subroutine for &handle_factored_dependencies to let `.PHONY' be last.
4192 # &handle_factored_dependencies ()
4193 # --------------------------------
4194 # Handle everything related to gathered targets.
4195 sub handle_factored_dependencies
4198 foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
4199 'uninstall-exec-local', 'uninstall-exec-hook')
4201 if (&target_defined ($utarg))
4204 $x =~ s/(data|exec)-//;
4205 &am_line_error ($utarg, "use `$x', not `$utarg'");
4209 if (&target_defined ('install-local'))
4211 &am_line_error ('install-local',
4212 "use `install-data-local' or `install-exec-local', "
4213 . "not `install-local'");
4216 if (!defined $options{'no-installinfo'}
4217 && &target_defined ('install-info-local'))
4219 &am_line_error ('install-info-local',
4220 "`install-info-local' target defined but "
4221 . "`no-installinfo' option not in use");
4224 # Install the -local hooks.
4225 foreach (keys %dependencies)
4227 # Hooks are installed on the -am targets.
4229 if (&target_defined ("$_-local"))
4231 depend ("$_-am", "$_-local");
4232 &depend ('.PHONY', "$_-local");
4236 # Install the -hook hooks.
4237 # FIXME: Why not be as liberal as we are with -local hooks?
4238 foreach ('install-exec', 'install-data')
4240 if (&target_defined ("$_-hook"))
4242 $actions{"$_-am"} .=
4243 ("\t\@\$(NORMAL_INSTALL)\n"
4244 . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
4248 # All the required targets are phony.
4249 depend ('.PHONY', keys %required_targets);
4251 # Actually output gathered targets.
4252 foreach (sort target_cmp keys %dependencies)
4254 # If there is nothing about this guy, skip it.
4256 unless (@{$dependencies{$_}}
4258 || $required_targets{$_});
4259 &pretty_print_rule ("$_:", "\t",
4260 uniq (sort @{$dependencies{$_}}));
4261 $output_rules .= $actions{$_}
4262 if defined $actions{$_};
4263 $output_rules .= "\n";
4268 # &handle_tests_dejagnu ()
4269 # ------------------------
4270 sub handle_tests_dejagnu
4272 push (@check_tests, 'check-DEJAGNU');
4273 $output_rules .= file_contents ('dejagnu');
4277 # Handle TESTS variable and other checks.
4280 if (defined $options{'dejagnu'})
4282 &handle_tests_dejagnu;
4286 foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
4289 "`$c' defined but `dejagnu' not in `AUTOMAKE_OPTIONS'")
4290 if &variable_defined ($c);
4294 if (&variable_defined ('TESTS'))
4296 push (@check_tests, 'check-TESTS');
4297 $output_rules .= &file_contents ('check');
4301 # Handle Emacs Lisp.
4302 sub handle_emacs_lisp
4304 my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
4307 return if ! @elfiles;
4309 # Generate .elc files.
4310 my @elcfiles = map { $_ . 'c' } @elfiles;
4311 define_pretty_variable ('ELCFILES', '', @elcfiles);
4313 push (@all, '$(ELCFILES)');
4315 &am_error ("`lisp_LISP' defined but `AM_PATH_LISPDIR' not in `$configure_ac'")
4316 if ! $seen_lispdir && &variable_defined ('lisp_LISP');
4318 &require_conf_file_with_conf_line ('AM_PATH_LISPDIR',
4319 $FOREIGN, 'elisp-comp');
4320 &define_variable ('elisp_comp', $config_aux_dir . '/elisp-comp');
4326 my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
4327 'python', 'noinst');
4328 return if ! @pyfiles;
4330 # Found some python.
4331 &am_error ("`python_PYTHON' defined but `AM_PATH_PYTHON' not in `$configure_ac'")
4332 if ! $seen_pythondir && &variable_defined ('python_PYTHON');
4334 &require_conf_file_with_conf_line ('AM_PATH_PYTHON',
4335 $FOREIGN, 'py-compile');
4336 &define_variable ('py_compile', $config_aux_dir . '/py-compile');
4342 my @sourcelist = &am_install_var ('-candist',
4344 'java', 'noinst', 'check');
4345 return if ! @sourcelist;
4347 my %valid = &am_primary_prefixes ('JAVA', 1,
4348 'java', 'noinst', 'check');
4351 foreach my $curs (keys %valid)
4353 if (! &variable_defined ($curs . '_JAVA') || $curs eq 'EXTRA')
4360 &am_line_error ($curs . '_JAVA',
4361 "multiple _JAVA primaries in use");
4366 push (@all, 'class' . $dir . '.stamp');
4370 # Handle some of the minor options.
4371 sub handle_minor_options
4373 if (defined $options{'readme-alpha'})
4375 if ($relative_dir eq '.')
4377 if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
4379 # FIXME: allow real filename.
4380 &am_conf_line_error ($configure_ac,
4381 $package_version_line,
4382 "version `$package_version' doesn't follow Gnits standards");
4384 elsif (defined $1 && -f 'README-alpha')
4386 # This means we have an alpha release. See
4387 # GNITS_VERSION_PATTERN for details.
4388 &require_file ($FOREIGN, 'README-alpha');
4394 ################################################################
4398 # &scan_autoconf_config_files ($CONFIG-FILES)
4399 # -------------------------------------------
4400 # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
4402 sub scan_autoconf_config_files
4404 my ($config_files) = @_;
4405 # Look at potential Makefile.am's.
4406 foreach (split ' ', $config_files)
4408 # Must skip empty string for Perl 4.
4409 next if $_ eq "\\" || $_ eq '';
4411 # Handle $local:$input syntax. Note that we ignore
4412 # every input file past the first, though we keep
4413 # those around for later.
4414 my ($local, $input, @rest) = split (/:/);
4421 # FIXME: should be error if .in is missing.
4422 $input =~ s/\.in$//;
4425 if (-f $input . '.am')
4427 # We have a file that automake should generate.
4428 $make_list{$input} = join (':', ($local, @rest));
4432 # We have a file that automake should cause to be
4433 # rebuilt, but shouldn't generate itself.
4434 push (@other_input_files, $_);
4440 # &scan_autoconf_traces ($FILENAME)
4441 # ---------------------------------
4442 # FIXME: For the time being, we don't care about the FILENAME.
4443 sub scan_autoconf_traces ($)
4445 my ($filename) = @_;
4448 'AC_CONFIG_AUX_DIR',
4459 my $traces = "$ENV{amtraces} ";
4461 # Use a separator unlikely to be used, not `:', the default, which
4462 # has a precise meaning for AC_CONFIG_FILES and so on.
4463 $traces .= join (' ',
4464 map { "--trace=$_" . ':\$f::\$l::\$n::\${::}%' } @traced);
4466 my $tracefh = new Automake::XFile ("$traces |");
4467 verbose "reading $traces";
4469 while ($_ = $tracefh->getline)
4472 my ($file, $line, @args) = split /::/;
4473 my $macro = $args[0];
4474 my $here = "$file:$line";
4476 # Alphabetical ordering please.
4477 if ($macro eq 'AC_CONFIG_AUX_DIR')
4479 @config_aux_path = $args[1];
4480 $config_aux_dir_set_in_configure_in = 1;
4482 elsif ($macro eq 'AC_CONFIG_FILES')
4484 # Look at potential Makefile.am's.
4485 &scan_autoconf_config_files ($args[1]);
4487 elsif ($macro eq 'AC_LIBSOURCE')
4489 # We should actually also `close' the sources: getopt.c
4490 # wants getopt.h etc. But actually it should be done in the
4491 # macro itself, i.e., we have to first fix Autoconf to extend
4492 # _AC_LIBOBJ_DECL and use it the in various macros.
4493 $libsources{$args[1]} = $here;
4495 elsif ($macro eq 'AC_SUBST')
4497 $configure_vars{$args[1]} = $here;
4499 elsif ($macro eq 'AM_CONDITIONAL')
4501 $configure_cond{$args[1]} = $here;
4503 elsif ($macro eq 'AM_C_PROTOTYPES')
4505 $am_c_prototypes = $here;
4507 elsif ($macro eq 'AM_GNU_GETTEXT')
4509 $seen_gettext = $here;
4510 $ac_gettext_line = $line;
4512 elsif ($macro eq 'AM_INIT_AUTOMAKE')
4514 $package_version = $args[2];
4515 $package_version_line = $line;
4516 $seen_init_automake = 1;
4518 elsif ($macro eq 'AM_PROG_CC_C_O')
4520 $seen_cc_c_o = $here;
4526 # &scan_one_autoconf_file ($FILENAME)
4527 # -----------------------------------
4528 # Scan one file for interesting things. Subroutine of
4529 # &scan_autoconf_files.
4530 sub scan_one_autoconf_file
4532 my ($filename) = @_;
4534 # Some macros already provide the right traces to enable generic
4535 # code and specific arguments, instead of dedicated code. But
4536 # currently we don't handle traces. Rewrite these dedicated
4537 # macros handling into the generic macro invocation, and let our
4538 # generic case handle them.
4542 'AC_FUNC_ALLOCA' => 'AC_LIBSOURCES([alloca.c])',
4543 'AC_FUNC_GETLOADAVG' => 'AC_LIBSOURCES([getloadavg.c])',
4544 'AC_FUNC_MEMCMP' => 'AC_LIBSOURCES([memcmp.c])',
4545 'AC_STRUCT_ST_BLOCKS' => 'AC_LIBSOURCES([fileblocks.c])',
4546 'A[CM]_REPLACE_GNU_GETOPT' => 'AC_LIBSOURCES([getopt.c, getopt1.c])',
4547 'A[CM]_FUNC_STRTOD' => 'AC_LIBSOURCES([strtod.c])',
4548 'AM_WITH_REGEX' => 'AC_LIBSOURCES([rx.c, rx.h, regex.c, regex.h])',
4549 'AC_FUNC_MKTIME' => 'AC_LIBSOURCES([mktime.c])',
4550 'A[CM]_FUNC_ERROR_AT_LINE' => 'AC_LIBSOURCES([error.c, error.h])',
4551 'A[CM]_FUNC_OBSTACK' => 'AC_LIBSOURCES([obstack.c, obstack.h])',
4554 my $configfh = new Automake::XFile ("< $filename");
4555 print "$me: reading $filename\n" if $verbose;
4557 my ($in_ac_output, $in_ac_replace) = (0, 0);
4558 while ($_ = $configfh->getline)
4560 # Remove comments from current line.
4564 # Skip macro definitions. Otherwise we might be confused into
4565 # thinking that a macro that was only defined was actually
4569 # Follow includes. This is a weirdness commonly in use at
4570 # Cygnus and hopefully nowhere else.
4571 if (/sinclude\((.*)\)/ && -f $1)
4573 # $_ being local, if we don't preserve it, when coming
4574 # back we will have $_ undefined, which is bad for the
4575 # the rest of this routine.
4576 my $underscore = $_;
4577 &scan_one_autoconf_file ($1);
4581 for my $generalize (keys %generalize)
4583 s/$generalize/$generalize{$generalize}/g;
4586 # Populate libobjs array.
4587 if (/LIBOBJS="(.*)\s+\$LIBOBJS"/
4588 || /LIBOBJS="\$LIBOBJS\s+(.*)"/)
4590 foreach my $libobj_iter (split (' ', $1))
4592 if ($libobj_iter =~ /^(.*)\.o(bj)?$/
4593 || $libobj_iter =~ /^(.*)\.\$ac_objext$/
4594 || $libobj_iter =~ /^(.*)\.\$\{ac_objext\}$/)
4596 $libsources{$1 . '.c'} = 1;
4600 elsif (/AC_LIBOBJ\(([^)]+)\)/)
4602 $libsources{"$1.c"} = 1;
4604 elsif (/AC_LIBSOURCE\(([^)]+)\)/)
4606 $libsources{&unquote_m4_arg ($1)} = 1;
4608 elsif (/AC_LIBSOURCES\(([^)]+)\)/)
4610 foreach my $lc_iter (split (/[, ]+/, &unquote_m4_arg ($1)))
4612 $libsources{$lc_iter} = 1;
4616 if (! $in_ac_replace && s/AC_REPLACE_FUNCS\s*\(\[?//)
4622 $in_ac_replace = 0 if s/[\]\)].*$//;
4623 # Remove trailing backslash.
4627 # Need to skip empty elements for Perl 4.
4629 $libsources{$_ . '.c'} = 1;
4633 if (/$obsolete_rx/o)
4636 if ($obsolete_macros{$1} ne '')
4638 $hint = '; ' . $obsolete_macros{$1};
4640 &am_conf_line_error ($filename, $., "`$1' is obsolete$hint");
4643 # Process the AC_OUTPUT and AC_CONFIG_FILES macros.
4644 if (! $in_ac_output && s/AC_(OUTPUT|CONFIG_FILES)\s*\(\[?//)
4647 $ac_output_line = $.;
4658 # Look at potential Makefile.am's.
4659 &scan_autoconf_config_files ($_);
4662 && scalar keys %make_list == 0
4663 && @other_input_files == 0)
4665 &am_conf_line_error ($filename, $ac_output_line,
4666 "No files mentioned in `AC_OUTPUT'");
4671 if (/$AC_CONFIG_AUX_DIR_PATTERN/o)
4673 @config_aux_path = &unquote_m4_arg ($1);
4674 $config_aux_dir_set_in_configure_in = 1;
4677 # Check for ansi2knr.
4678 $am_c_prototypes = 1 if /AM_C_PROTOTYPES/;
4680 # Check for `-c -o' code.
4681 $seen_cc_c_o = 1 if /AM_PROG_CC_C_O/;
4683 # Check for NLS support.
4684 if (/AM_GNU_GETTEXT/)
4687 $ac_gettext_line = $.;
4690 # Handle configuration headers. A config header of `[$1]'
4691 # means we are actually scanning AM_CONFIG_HEADER from
4693 if (/A([CM])_CONFIG_HEADERS?\s*\((.*)\)/
4697 ($filename, $., "`automake requires `AM_CONFIG_HEADER', not `AC_CONFIG_HEADER'")
4700 $config_header_line = $.;
4701 foreach my $one_hdr (split (' ', &unquote_m4_arg ($2)))
4703 push (@config_fullnames, $one_hdr);
4704 if ($one_hdr =~ /^([^:]+):(.+)$/)
4706 push (@config_names, $1);
4707 push (@config_headers, $2);
4711 push (@config_names, $one_hdr);
4712 push (@config_headers, $one_hdr . '.in');
4717 # Handle AC_CANONICAL_*. Always allow upgrading to
4718 # AC_CANONICAL_SYSTEM, but never downgrading.
4719 $seen_canonical = $AC_CANONICAL_HOST
4720 if ! $seen_canonical
4721 && (/AC_CANONICAL_HOST/ || /AC_CHECK_TOOL/);
4722 $seen_canonical = $AC_CANONICAL_SYSTEM if /AC_CANONICAL_SYSTEM/;
4724 # If using X, include some extra variable definitions. NOTE
4725 # we don't want to force these into CFLAGS or anything,
4726 # because not all programs will necessarily use X.
4729 foreach my $var ('X_CFLAGS', 'X_LIBS', 'X_EXTRA_LIBS',
4732 $configure_vars{$var} = $filename . ':' . $.
4736 # This macro handles several different things.
4737 if (/$AM_INIT_AUTOMAKE_PATTERN/o)
4739 ($package_version = $1) =~ s/$AM_PACKAGE_VERSION_PATTERN/$1/o;
4740 $package_version_line = $.;
4741 $seen_init_automake = 1;
4746 $configure_vars{'LEX'} = $filename . ':' . $.;
4747 $seen_decl_yytext = 1;
4749 if (/AC_DECL_YYTEXT/ && $filename =~ /configure\.(ac|in)$/)
4751 &am_conf_line_warning ($filename, $., "`AC_DECL_YYTEXT' is covered by `AM_PROG_LEX'");
4753 if (/AC_PROG_LEX/ && $filename =~ /configure\.(ac|in)$/)
4755 &am_conf_line_warning ($filename, $., "automake requires `AM_PROG_LEX', not `AC_PROG_LEX'");
4758 if (/AC_PROG_(F77|YACC|RANLIB|CC|CXXCPP|CXX|LEX|AWK|CPP|LN_S)/)
4760 $configure_vars{$1} = $filename . ':' . $.;
4762 if (/$AC_CHECK_PATTERN/o)
4764 $configure_vars{$3} = $filename . ':' . $.;
4766 if (/$AM_MISSING_PATTERN/o
4770 && $1 ne 'AUTOHEADER'
4771 # AM_INIT_AUTOMAKE is AM_MISSING_PROG'ing MAKEINFO. But
4772 # we handle it elsewhere.
4773 && $1 ne 'MAKEINFO')
4775 $configure_vars{$1} = $filename . ':' . $.;
4778 # Explicitly avoid ANSI2KNR -- we AC_SUBST that in protos.m4,
4779 # but later define it elsewhere. This is pretty hacky. We
4780 # also explicitly avoid INSTALL_SCRIPT and some other
4781 # variables because they are defined in header-vars.am.
4782 # AMDEPBACKSLASH might be subst'd by `\', which certainly would
4783 # not be appreciated by Make.
4784 if (/$AC_SUBST_PATTERN/o
4786 && $1 ne 'INSTALL_SCRIPT'
4787 && $1 ne 'INSTALL_DATA'
4788 && $1 ne 'AMDEPBACKSLASH')
4790 $configure_vars{$1} = $filename . ':' . $.;
4793 $seen_decl_yytext = 1 if /AC_DECL_YYTEXT/;
4794 if (/AM_MAINTAINER_MODE/)
4796 $seen_maint_mode = 1;
4797 $configure_cond{'MAINTAINER_MODE'} = 1;
4800 $seen_lispdir = 1 if /AM_PATH_LISPDIR/;
4802 if (/AM_PATH_PYTHON/)
4804 $seen_pythondir = 1;
4805 $configure_vars{'pythondir'} = $filename . ':' . $.;
4806 $configure_vars{'PYTHON'} = $filename . ':' . $.;
4809 if (/A(C|M)_PROG_LIBTOOL/)
4811 # We're not ready for this yet. People still use a
4812 # libtool with no AC_PROG_LIBTOOL. Once that is the
4813 # dominant version we can reenable this code -- but next
4814 # time by mentioning the macro in %obsolete_macros, both
4815 # here and in aclocal.in.
4817 # if (/AM_PROG_LIBTOOL/)
4819 # &am_conf_line_warning ($filename, $., "`AM_PROG_LIBTOOL' is obsolete, use `AC_PROG_LIBTOOL' instead");
4823 $configure_vars{'LIBTOOL'} = $filename . ':' . $.;
4824 $configure_vars{'RANLIB'} = $filename . ':' . $.;
4825 $configure_vars{'CC'} = $filename . ':' . $.;
4826 # AC_PROG_LIBTOOL runs AC_CANONICAL_HOST. Make sure we
4827 # never downgrade (if we've seen AC_CANONICAL_SYSTEM).
4828 $seen_canonical = $AC_CANONICAL_HOST if ! $seen_canonical;
4831 $seen_multilib = 1 if (/AM_ENABLE_MULTILIB/);
4833 if (/$AM_CONDITIONAL_PATTERN/o)
4835 $configure_cond{$1} = 1;
4838 # Check for Fortran 77 intrinsic and run-time libraries.
4839 if (/AC_F77_LIBRARY_LDFLAGS/)
4841 $configure_vars{'FLIBS'} = $filename . ':' . $.;
4849 # &scan_autoconf_files ()
4850 # -----------------------
4851 # Check whether we use `configure.ac' or `configure.in'.
4852 # Scan it (and possibly `aclocal.m4') for interesting things.
4853 # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
4854 sub scan_autoconf_files
4856 # Reinitialize libsources here. This isn't really necessary,
4857 # since we currently assume there is only one configure.ac. But
4858 # that won't always be the case.
4861 $configure_ac = find_configure_ac;
4862 die "$me: `configure.ac' or `configure.in' is required\n"
4865 if (defined $ENV{'amtraces'})
4867 print STDERR "$me: Autoconf traces is an experimental feature\n";
4868 print STDERR "$me: use at your own risks\n";
4870 scan_autoconf_traces ($configure_ac);
4874 scan_one_autoconf_file ($configure_ac);
4875 scan_one_autoconf_file ('aclocal.m4')
4879 # Set input and output files if not specified by user.
4882 @input_files = sort keys %make_list;
4883 %output_files = %make_list;
4886 @configure_input_files = sort keys %make_list;
4888 &am_conf_error ("`AM_INIT_AUTOMAKE' must be used")
4889 if ! $seen_init_automake;
4891 # Look for some files we need. Always check for these. This
4892 # check must be done for every run, even those where we are only
4893 # looking at a subdir Makefile. We must set relative_dir so that
4894 # the file-finding machinery works.
4895 # FIXME: Is this broken because it needs dynamic scopes.
4896 # My tests seems to show it's not the case.
4897 $relative_dir = '.';
4898 &require_config_file ($FOREIGN, 'install-sh', 'mkinstalldirs', 'missing');
4899 &am_error ("`install.sh' is an anachronism; use `install-sh' instead")
4900 if -f $config_aux_path[0] . '/install.sh';
4902 &require_config_file ($FOREIGN, 'py-compile')
4905 # Preserve dist_common for later.
4906 $configure_dist_common = variable_value ('DIST_COMMON', 'TRUE') || '';
4909 ################################################################
4911 # Set up for Cygnus mode.
4914 return unless $cygnus_mode;
4916 &set_strictness ('foreign');
4917 $options{'no-installinfo'} = 1;
4918 $options{'no-dependencies'} = 1;
4919 $use_dependencies = 0;
4921 if (! $seen_maint_mode)
4923 &am_conf_error ("`AM_MAINTAINER_MODE' required when --cygnus specified");
4927 # Do any extra checking for GNU standards.
4928 sub check_gnu_standards
4930 if ($relative_dir eq '.')
4932 # In top level (or only) directory.
4933 &require_file ($GNU, 'INSTALL', 'NEWS', 'README', 'COPYING',
4934 'AUTHORS', 'ChangeLog');
4937 if ($strictness >= $GNU
4938 && defined $options{'no-installman'})
4940 &am_line_error ('AUTOMAKE_OPTIONS',
4941 "option `no-installman' disallowed by GNU standards");
4944 if ($strictness >= $GNU
4945 && defined $options{'no-installinfo'})
4947 &am_line_error ('AUTOMAKE_OPTIONS',
4948 "option `no-installinfo' disallowed by GNU standards");
4952 # Do any extra checking for GNITS standards.
4953 sub check_gnits_standards
4955 if ($relative_dir eq '.')
4957 # In top level (or only) directory.
4958 &require_file ($GNITS, 'THANKS');
4962 ################################################################
4964 # Functions to handle files of each language.
4966 # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
4967 # simple formula: Return value is $LANG_SUBDIR if the resulting object
4968 # file should be in a subdir if the source file is, $LANG_PROCESS if
4969 # file is to be dealt with, $LANG_IGNORE otherwise.
4971 # Much of the actual processing is handled in
4972 # handle_single_transform_list. These functions exist so that
4973 # auxiliary information can be recorded for a later cleanup pass.
4974 # Note that the calls to these functions are computed, so don't bother
4975 # searching for their precise names in the source.
4977 # This is just a convenience function that can be used to determine
4978 # when a subdir object should be used.
4981 return defined $options{'subdir-objects'} ? $LANG_SUBDIR : $LANG_PROCESS;
4984 # Rewrite a single C source file.
4987 my ($directory, $base, $ext) = @_;
4989 if (defined $options{'ansi2knr'} && $base =~ /_$/)
4991 # FIXME: include line number in error.
4992 &am_error ("C source file `$base.c' would be deleted by ansi2knr rules");
4995 my $r = $LANG_PROCESS;
4996 if (defined $options{'subdir-objects'})
4999 $base = $directory . '/' . $base;
5003 # Only give error once.
5005 # FIXME: line number.
5006 &am_error ("C objects in subdir but `AM_PROG_CC_C_O' not in `$configure_ac'");
5009 &require_conf_file ($FOREIGN, 'compile');
5012 $de_ansi_files{$base} = 1;
5016 # Rewrite a single C++ source file.
5017 sub lang_cxx_rewrite
5019 return &lang_sub_obj;
5022 # Rewrite a single header file.
5023 sub lang_header_rewrite
5025 # Header files are simply ignored.
5026 return $LANG_IGNORE;
5029 # Rewrite a single yacc file.
5030 sub lang_yacc_rewrite
5032 my ($directory, $base, $ext) = @_;
5034 my $r = &lang_sub_obj;
5035 (my $newext = $ext) =~ tr/y/c/;
5036 return ($r, $newext);
5039 # Rewrite a single yacc++ file.
5040 sub lang_yaccxx_rewrite
5042 my ($directory, $base, $ext) = @_;
5044 my $r = &lang_sub_obj;
5045 (my $newext = $ext) =~ tr/y/c/;
5046 return ($r, $newext);
5049 # Rewrite a single lex file.
5050 sub lang_lex_rewrite
5052 my ($directory, $base, $ext) = @_;
5054 my $r = &lang_sub_obj;
5055 (my $newext = $ext) =~ tr/l/c/;
5056 return ($r, $newext);
5059 # Rewrite a single lex++ file.
5060 sub lang_lexxx_rewrite
5062 my ($directory, $base, $ext) = @_;
5064 my $r = &lang_sub_obj;
5065 (my $newext = $ext) =~ tr/l/c/;
5066 return ($r, $newext);
5069 # Rewrite a single assembly file.
5070 sub lang_asm_rewrite
5072 return &lang_sub_obj;
5075 # Rewrite a single Fortran 77 file.
5076 sub lang_f77_rewrite
5078 return $LANG_PROCESS;
5081 # Rewrite a single preprocessed Fortran 77 file.
5082 sub lang_ppf77_rewrite
5084 return $LANG_PROCESS;
5087 # Rewrite a single ratfor file.
5088 sub lang_ratfor_rewrite
5090 return $LANG_PROCESS;
5093 # Rewrite a single Objective C file.
5094 sub lang_objc_rewrite
5096 return &lang_sub_obj;
5099 # Rewrite a single Java file.
5100 sub lang_java_rewrite
5102 return $LANG_SUBDIR;
5105 # The lang_X_finish functions are called after all source file
5106 # processing is done. Each should handle defining rules for the
5107 # language, etc. A finish function is only called if a source file of
5108 # the appropriate type has been seen.
5112 # Push all libobjs files onto de_ansi_files. We actually only
5113 # push files which exist in the current directory, and which are
5114 # genuine source files.
5115 foreach my $file (keys %libsources)
5117 if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
5119 $de_ansi_files{$1} = 1;
5123 if (defined $options{'ansi2knr'} && keys %de_ansi_files)
5125 # Make all _.c files depend on their corresponding .c files.
5127 foreach my $base (sort keys %de_ansi_files)
5129 # Each _.c file must depend on ansi2knr; otherwise it
5130 # might be used in a parallel build before it is built.
5131 # We need to support files in the srcdir and in the build
5132 # dir (because these files might be auto-generated. But
5133 # we can't use $< -- some makes only define $< during a
5135 $output_rules .= ($base . "_.c: $base.c \$(ANSI2KNR)\n\t"
5136 . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
5137 . '`if test -f $(srcdir)/' . $base . '.c'
5138 . '; then echo $(srcdir)/' . $base . '.c'
5139 . '; else echo ' . $base . '.c; fi` '
5140 . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
5141 . '| $(ANSI2KNR) > ' . $base . "_.c"
5142 # If ansi2knr fails then we shouldn't
5143 # create the _.c file
5144 . " || rm -f ${base}_.c\n");
5145 push (@objects, $base . '_.$(OBJEXT)');
5146 push (@objects, $base . '_.lo')
5150 # Make all _.o (and _.lo) files depend on ansi2knr.
5151 # Use a sneaky little hack to make it print nicely.
5152 &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
5156 # This is a yacc helper which is called whenever we have decided to
5157 # compile a yacc file.
5158 sub lang_yacc_target_hook
5160 my ($self, $aggregate, $output, $input) = @_;
5162 my $flag = $aggregate . "_YFLAGS";
5163 if ((&variable_defined ($flag)
5164 && &variable_value ($flag) =~ /$DASH_D_PATTERN/o)
5165 || (&variable_defined ('YFLAGS')
5166 && &variable_value ('YFLAGS') =~ /$DASH_D_PATTERN/o))
5168 (my $output_base = $output) =~ s/\..*$//;
5169 my $header = $output_base . '.h';
5171 # Found a `-d' that applies to the compilation of this file.
5172 # Add a dependency for the generated header file, and arrange
5173 # for that file to be included in the distribution.
5174 # FIXME: this fails for `nodist_*_SOURCES'.
5175 $output_rules .= "${header}: $output\n";
5176 &push_dist_common ($header);
5177 # If the files are built in the build directory, then we want
5178 # to remove them with `make clean'. If they are in srcdir
5179 # they shouldn't be touched. However, we can't determine this
5180 # statically, and the GNU rules say that yacc/lex output files
5181 # should be removed by maintainer-clean. So that's what we
5183 push (@maintainer_clean_files, $header);
5187 # This is a helper for both lex and yacc.
5188 sub yacc_lex_finish_helper
5190 return if defined $language_scratch{'lex-yacc-done'};
5191 $language_scratch{'lex-yacc-done'} = 1;
5193 # If there is more than one distinct yacc (resp lex) source file
5194 # in a given directory, then the `ylwrap' program is required to
5195 # allow parallel builds to work correctly. FIXME: for now, no
5197 &require_config_file ($FOREIGN, 'ylwrap');
5198 if ($config_aux_dir_set_in_configure_in)
5200 &define_variable ('YLWRAP', $config_aux_dir . "/ylwrap");
5204 &define_variable ('YLWRAP', '$(top_srcdir)/ylwrap');
5208 sub lang_yacc_finish
5210 return if defined $language_scratch{'yacc-done'};
5211 $language_scratch{'yacc-done'} = 1;
5213 if (&variable_defined ('YACCFLAGS'))
5215 &am_line_error ('YACCFLAGS',
5216 "`YACCFLAGS' obsolete; use `YFLAGS' instead");
5219 if (count_files_for_language ('yacc') > 1)
5221 &yacc_lex_finish_helper;
5228 return if defined $language_scratch{'lex-done'};
5229 $language_scratch{'lex-done'} = 1;
5231 if (! $seen_decl_yytext)
5233 &am_error ("lex source seen but `AC_DECL_YYTEXT' not in `$configure_ac'");
5236 if (count_files_for_language ('lex') > 1)
5238 &yacc_lex_finish_helper;
5243 # Given a hash table of linker names, pick the name that has the most
5244 # precedence. This is lame, but something has to have global
5245 # knowledge in order to eliminate the conflict. Add more linkers as
5252 if defined $linkers{'GCJLINK'};
5254 if defined $linkers{'CXXLINK'};
5256 if defined $linkers{'F77LINK'};
5258 if defined $linkers{'OBJCLINK'};
5262 # Called to indicate that an extension was used.
5266 if (! defined $extension_seen{$ext})
5268 $extension_seen{$ext} = 1;
5272 ++$extension_seen{$ext};
5276 # Return the number of files seen for a given language. Knows about
5277 # special cases we care about. FIXME: this is hideous. We need
5278 # something that involves real language objects. For instance yacc
5279 # and yaccxx could both derive from a common yacc class which would
5280 # know about the strange ylwrap requirement. (Or better yet we could
5281 # just not support legacy yacc!)
5282 sub count_files_for_language
5287 if ($name eq 'yacc' || $name eq 'yaccxx')
5289 @names = ('yacc', 'yaccxx');
5291 elsif ($name eq 'lex' || $name eq 'lexxx')
5293 @names = ('lex', 'lexxx');
5301 foreach $name (@names)
5303 my $lang = $languages{$name};
5304 foreach my $ext (@{$lang->extensions})
5306 $r += $extension_seen{$ext}
5307 if defined $extension_seen{$ext};
5314 # Called to ask whether source files have been seen . If HEADERS is 1,
5315 # headers can be included.
5320 # count all the sources
5322 foreach my $val (values %extension_seen)
5329 $count -= count_files_for_language ('header');
5336 # register_language (%ATTRIBUTE)
5337 # ------------------------------
5338 # Register a single language.
5339 # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
5340 sub register_language (%)
5346 unless defined $option{'ansi'};
5347 $option{'autodep'} = 'no'
5348 unless defined $option{'autodep'};
5349 $option{'linker'} = ''
5350 unless defined $option{'linker'};
5351 $option{'define_flag'} = 1
5352 unless defined $option{'define_flag'};
5354 my $lang = new Language (%option);
5357 grep ($extension_map{$_} = $lang->name, @{$lang->extensions});
5358 $languages{$lang->name} = $lang;
5361 # This function is used to find a path from a user-specified suffix to
5362 # `o' or to some other suffix we recognize internally, eg `cc'.
5365 my ($source_ext) = @_;
5367 # FIXME: hard-coding `o' is a mistake. Doing something
5368 # intelligent is harder.
5369 while (! $extension_map{$source_ext}
5370 && $source_ext ne 'o'
5371 && defined $suffix_rules{$source_ext})
5373 $source_ext = $suffix_rules{$source_ext};
5380 ################################################################
5382 # Pretty-print something. HEAD is what should be printed at the
5383 # beginning of the first line, FILL is what should be printed at the
5384 # beginning of every subsequent line.
5385 sub pretty_print_internal
5387 my ($head, $fill, @values) = @_;
5389 my $column = length ($head);
5392 # Fill length is number of characters. However, each Tab
5393 # character counts for eight. So we count the number of Tabs and
5395 my $fill_length = length ($fill);
5396 $fill_length += 7 * ($fill =~ tr/\t/\t/d);
5400 # "71" because we also print a space.
5401 if ($column + length ($_) > 71)
5403 $result .= " \\\n" . $fill;
5404 $column = $fill_length;
5406 $result .= ' ' if $result =~ /\S\z/;
5408 $column += length ($_) + 1;
5415 # Pretty-print something and append to output_vars.
5418 $output_vars .= &pretty_print_internal (@_);
5421 # Pretty-print something and append to output_rules.
5422 sub pretty_print_rule
5424 $output_rules .= &pretty_print_internal (@_);
5428 ################################################################
5432 # &conditional_string(@COND-STACK)
5433 # --------------------------------
5434 # Build a string which denotes the conditional in @COND-STACK. Some
5435 # simplifications are done: `TRUE' entries are elided, and any `FALSE'
5436 # entry results in a return of `FALSE'.
5437 sub conditional_string
5441 if (grep (/^FALSE$/, @stack))
5447 return join (' ', uniq sort grep (!/^TRUE$/, @stack));
5453 # &conditional_true_when ($COND, $WHEN)
5454 # -------------------------------------
5455 # See if a conditional is true. Both arguments are conditional
5456 # strings. This returns true if the first conditional is true when
5457 # the second conditional is true.
5458 # For instance with $COND = `BAR FOO', and $WHEN = `BAR BAZ FOO',
5459 # obviously return 1, and 0 when, for instance, $WHEN = `FOO'.
5460 sub conditional_true_when ($$)
5462 my ($cond, $when) = @_;
5464 # Make a hash holding all the values from $WHEN.
5465 my %cond_vals = map { $_ => 1 } split (' ', $when);
5467 # Check each component of $cond, which looks `COND1 COND2'.
5468 foreach my $comp (split (' ', $cond))
5470 # TRUE is always true.
5471 next if $comp eq 'TRUE';
5472 return 0 if ! defined $cond_vals{$comp};
5480 # &conditional_is_redundant ($COND, @WHENS)
5481 # ----------------------------------------
5482 # Determine whether $COND is redundant with respect to @WHENS.
5484 # Returns true if $COND is true for any of the conditions in @WHENS.
5486 # If there are no @WHENS, then behave as if @WHENS contained a single empty
5488 sub conditional_is_redundant ($@)
5490 my ($cond, @whens) = @_;
5494 return 1 if conditional_true_when ($cond, "");
5498 foreach my $when (@whens)
5500 return 1 if conditional_true_when ($cond, $when);
5509 # condition_negate ($COND)
5510 # ------------------------
5511 sub condition_negate ($)
5515 $cond =~ s/TRUE$/TRUEO/;
5516 $cond =~ s/FALSE$/TRUE/;
5517 $cond =~ s/TRUEO$/FALSE/;
5523 # Compare condition names.
5524 # Issue them in alphabetical order, foo_TRUE before foo_FALSE.
5527 # Be careful we might be comparing `' or `#'.
5528 $a =~ /^(.*)_(TRUE|FALSE)$/;
5529 my ($aname, $abool) = ($1 || '', $2 || '');
5530 $b =~ /^(.*)_(TRUE|FALSE)$/;
5531 my ($bname, $bbool) = ($1 || '', $2 || '');
5532 return ($aname cmp $bname
5533 # Don't bother with IFs, given that TRUE is after FALSE
5534 # just cmp in the reverse order.
5535 || $bbool cmp $abool
5541 # &make_condition (@CONDITIONS)
5542 # -----------------------------
5543 # Transform a list of conditions (themselves can be an internal list
5544 # of conditions, e.g., @CONDITIONS = ('cond1 cond2', 'cond3')) into a
5545 # Make conditional (a pattern for AC_SUBST).
5546 # Correctly returns the empty string when there are no conditions.
5549 my $res = conditional_string (@_);
5551 # There are no conditions.
5557 elsif ($res eq 'FALSE')
5564 $res = '@' . $res . '@';
5573 ## ------------------------------ ##
5574 ## Handling the condition stack. ##
5575 ## ------------------------------ ##
5579 # cond_stack_if ($NEGATE, $COND, $WHERE)
5580 # --------------------------------------
5581 sub cond_stack_if ($$$)
5583 my ($negate, $cond, $where) = @_;
5585 &am_file_error ($where, "$cond does not appear in AM_CONDITIONAL")
5586 if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
5588 $cond = "${cond}_TRUE"
5589 unless $cond =~ /^TRUE|FALSE$/;
5590 $cond = condition_negate ($cond)
5593 push (@cond_stack, $cond);
5595 return conditional_string (@cond_stack);
5600 # cond_stack_else ($NEGATE, $COND, $WHERE)
5601 # ----------------------------------------
5602 sub cond_stack_else ($$$)
5604 my ($negate, $cond, $where) = @_;
5608 &am_file_error ($where, "else without if");
5612 $cond_stack[$#cond_stack] = condition_negate ($cond_stack[$#cond_stack]);
5614 # If $COND is given, check against it.
5617 $cond = "${cond}_TRUE"
5618 unless $cond =~ /^TRUE|FALSE$/;
5619 $cond = condition_negate ($cond)
5622 &am_file_error ($where,
5623 "else reminder ($negate$cond) incompatible with "
5624 . "current conditional: $cond_stack[$#cond_stack]")
5625 if $cond_stack[$#cond_stack] ne $cond;
5628 return conditional_string (@cond_stack);
5633 # cond_stack_endif ($NEGATE, $COND, $WHERE)
5634 # -----------------------------------------
5635 sub cond_stack_endif ($$$)
5637 my ($negate, $cond, $where) = @_;
5642 &am_file_error ($where, "endif without if: $negate$cond");
5647 # If $COND is given, check against it.
5650 $cond = "${cond}_TRUE"
5651 unless $cond =~ /^TRUE|FALSE$/;
5652 $cond = condition_negate ($cond)
5655 &am_file_error ($where,
5656 "endif reminder ($negate$cond) incompatible with "
5657 . "current conditional: $cond_stack[$#cond_stack]")
5658 if $cond_stack[$#cond_stack] ne $cond;
5663 return conditional_string (@cond_stack);
5670 ## ------------------------ ##
5671 ## Handling the variables. ##
5672 ## ------------------------ ##
5675 # check_ambiguous_conditional ($VAR, $COND)
5676 # -----------------------------------------
5677 # Check for an ambiguous conditional. This is called when a variable
5678 # is being defined conditionally. If we already know about a
5679 # definition that is true under the same conditions, then we have an
5681 sub check_ambiguous_conditional ($$)
5683 my ($var, $cond) = @_;
5684 foreach my $vcond (keys %{$var_value{$var}})
5687 if ($vcond eq $cond)
5689 $message = "$var multiply defined in condition $cond";
5691 elsif (&conditional_true_when ($vcond, $cond))
5693 $message = ("$var was already defined in condition $vcond, "
5694 . "which implies condition $cond");
5696 elsif (&conditional_true_when ($cond, $vcond))
5698 $message = ("$var was already defined in condition $vcond, "
5699 . "which is implied by condition $cond");
5703 &am_line_error ($var, $message);
5710 # ¯o_define($VAR, $VAR_IS_AM, $TYPE, $COND, $VALUE, $WHERE)
5711 # -------------------------------------------------------------
5712 # The $VAR can go from Automake to user, but not the converse.
5713 sub macro_define ($$$$$$)
5715 my ($var, $var_is_am, $type, $cond, $value, $where) = @_;
5717 am_file_error ($where, "bad macro name `$var'")
5718 if $var !~ /$MACRO_PATTERN/o;
5722 # An Automake variable must be consistently defined with the same
5723 # sign by Automake. A user variable must be set by either `=' or
5724 # `:=', and later promoted to `+='.
5727 if (defined $var_type{$var} && $var_type{$var} ne $type)
5729 am_line_error ($var,
5730 ("$var was set with `$var_type{$var}=' "
5731 . "and is now set with `$type='"));
5736 if (!defined $var_type{$var} && $type eq '+')
5738 am_line_error ($var, "$var must be set with `=' before using `+='");
5741 $var_type{$var} = $type;
5743 # When adding, since we rewrite, don't try to preserve the
5744 # Automake continuation backslashes.
5746 if $type eq '+' && $var_is_am;
5748 # Differentiate the first assignment (including with `+=').
5749 if ($type eq '+' && defined $var_value{$var}{$cond})
5751 if (substr ($var_value{$var}{$cond}, -1) eq "\n")
5753 # Insert a backslash before a trailing newline.
5754 $var_value{$var}{$cond} =
5755 substr ($var_value{$var}{$cond}, 0, -1) . "\\\n";
5757 elsif ($var_value{$var}{$cond})
5759 # Insert a separator.
5760 $var_value{$var}{$cond} .= ' ';
5762 $var_value{$var}{$cond} .= $value;
5766 # The first assignment to a macro sets the line number. Ideally I
5767 # suppose we would associate line numbers with random bits of text.
5768 # FIXME: We sometimes redefine some variables, but we want to keep
5769 # the original location. More subs are needed to handle
5770 # properly variables. Once this done, remove this hack.
5771 $var_line{$var} = $where
5772 unless defined $var_line{$var};
5774 # If Automake tries to override a value specified by the user,
5775 # just don't let it do.
5776 if (defined $var_value{$var}{$cond} && !$var_is_am{$var} && $var_is_am)
5780 print STDERR "$me: refusing to override the user definition of:\n";
5782 print STDERR "$me: with `$cond' => `$value'\n";
5787 # There must be no previous value unless the user is redefining
5788 # an Automake variable or an AC_SUBST variable.
5789 check_ambiguous_conditional ($var, $cond)
5790 unless ($var_is_am{$var} && !$var_is_am
5791 || exists $configure_vars{$var});
5793 $var_value{$var}{$cond} = $value;
5797 # An Automake variable can be given to the user, but not the converse.
5798 if (! defined $var_is_am{$var} || !$var_is_am)
5800 $var_is_am{$var} = $var_is_am;
5805 # &variable_delete ($VAR, [@CONDS])
5806 # ---------------------------------
5807 # Forget about $VAR under the conditions @CONDS, or completely if
5809 sub variable_delete ($@)
5811 my ($var, @conds) = @_;
5815 delete $var_value{$var};
5816 delete $var_line{$var};
5817 delete $var_is_am{$var};
5818 delete $var_comment{$var};
5819 delete $var_type{$var};
5823 foreach my $cond (@conds)
5825 delete $var_value{$var}{$cond};
5831 # ¯o_dump ($VAR)
5832 # ------------------
5837 if (!exists $var_value{$var})
5839 print STDERR " $var does not exist\n";
5843 my $var_is_am = $var_is_am{$var} ? "Automake" : "User";
5844 my $where = (defined $var_line{$var}
5845 ? $var_line{$var} : "undefined");
5846 print STDERR "$var_comment{$var}"
5847 if defined $var_comment{$var};
5848 print STDERR " $var ($var_is_am, where = $where) $var_type{$var}=\n";
5849 print STDERR " {\n";
5850 foreach my $vcond (sort by_condition keys %{$var_value{$var}})
5852 print STDERR " $vcond => $var_value{$var}{$vcond}\n";
5854 print STDERR " }\n";
5865 print STDERR "%var_value =\n";
5867 foreach my $var (sort (keys %var_value))
5876 # &variable_defined ($VAR, [$COND])
5877 # ---------------------------------
5878 # See if a variable exists. $VAR is the variable name, and $COND is
5879 # the condition which we should check. If no condition is given, we
5880 # currently return true if the variable is defined under any
5882 sub variable_defined ($$)
5884 my ($var, $cond) = @_;
5886 # Unfortunately we can't just check for $var_value{VAR}{COND}
5887 # as this would make perl create $condition{VAR}, which we
5889 if (!exists $var_value{$var})
5891 if (defined $targets{$var})
5893 &am_line_error ($var, "`$var' is a target; expected a variable")
5895 # The variable is not defined
5899 if ($cond && !exists $var_value{$var}{$cond})
5901 # The variable is not defined for the given condition.
5905 # Even a var_value examination is good enough for us. FIXME:
5906 # really should maintain examined status on a per-condition basis.
5907 $content_seen{$var} = 1;
5911 # Mark a variable as examined.
5912 sub examine_variable
5915 &variable_defined ($var);
5918 # Return the set of conditions for which a variable is defined.
5920 # If the variable is not defined conditionally, and is not defined in
5921 # terms of any variables which are defined conditionally, then this
5922 # returns the empty list.
5924 # If the variable is defined conditionally, but is not defined in
5925 # terms of any variables which are defined conditionally, then this
5926 # returns the list of conditions for which the variable is defined.
5928 # If the variable is defined in terms of any variables which are
5929 # defined conditionally, then this returns a full set of permutations
5930 # of the subvariable conditions. For example, if the variable is
5931 # defined in terms of a variable which is defined for COND_TRUE,
5932 # then this returns both COND_TRUE and COND_FALSE. This is
5933 # because we will need to define the variable under both conditions.
5935 sub variable_conditions_recursive ($)
5941 my @new_conds = variable_conditions_recursive_sub ($var, '');
5942 # Now we want to return all permutations of the subvariable
5945 foreach my $item (@new_conds)
5947 foreach (split (' ', $item))
5949 s/^(.*)_(TRUE|FALSE)$/$1_TRUE/;
5953 @new_conds = variable_conditions_permutations (sort keys %allconds);
5956 foreach my $cond (@new_conds)
5958 my $reduce = variable_conditions_reduce (split (' ', $cond));
5960 if $reduce eq 'FALSE';
5961 $uniqify{$cond} = 1;
5964 # Note we cannot just do `return sort keys %uniqify', because this
5965 # function is sometimes used in a scalar context.
5966 my @uniq_list = sort by_condition keys %uniqify;
5971 # variable_conditions ($VAR)
5972 # --------------------------
5973 # Get the list of conditions that a variable is defined with, without
5974 # recursing through the conditions of any subvariables.
5975 # Argument is $VAR: the variable to get the conditions of.
5976 # Returns the list of conditions.
5977 sub variable_conditions ($)
5980 my @conds = keys %{$var_value{$var}};
5981 return sort by_condition @conds;
5986 # &variable_conditionally_defined ($VAR)
5987 # --------------------------------------
5988 sub variable_conditionally_defined ($)
5991 foreach my $cond (variable_conditions_recursive ($var))
5994 unless $cond =~ /^TRUE|FALSE$/;
6001 # &variable_conditions_recursive_sub ($VAR, $PARENT)
6002 # -------------------------------------------------------
6003 # A subroutine of variable_conditions_recursive. This returns all the
6004 # conditions of $VAR, including those of any sub-variables.
6005 sub variable_conditions_recursive_sub
6007 my ($var, $parent) = @_;
6010 if (defined $vars_scanned{$var})
6012 &am_line_error ($parent, "variable `$var' recursively defined");
6015 $vars_scanned{$var} = 1;
6017 my @this_conds = ();
6018 # Examine every condition under which $VAR is defined.
6019 foreach my $vcond (keys %{$var_value{$var}})
6021 push (@this_conds, $vcond);
6023 # If $VAR references some other variable, then compute the
6024 # conditions for that subvariable.
6025 my @subvar_conds = ();
6026 foreach (split (' ', $var_value{$var}{$vcond}))
6028 # If a comment seen, just leave.
6031 # Handle variable substitutions.
6032 if (/^\$\{(.*)\}$/ || /^\$\((.*)\)$/)
6035 if ($varname =~ /$SUBST_REF_PATTERN/o)
6041 # Here we compute all the conditions under which the
6042 # subvariable is defined. Then we go through and add
6044 my @svc = variable_conditions_recursive_sub ($varname, $var);
6045 foreach my $item (@svc)
6047 my $val = conditional_string ($vcond, split (' ', $item));
6049 push (@subvar_conds, $val);
6054 # If there are no conditional subvariables, then we want to
6055 # return this condition. Otherwise, we want to return the
6056 # permutations of the subvariables, taking into account the
6057 # conditions of $VAR.
6058 if (! @subvar_conds)
6060 push (@new_conds, $vcond);
6064 push (@new_conds, variable_conditions_reduce (@subvar_conds));
6068 # Unset our entry in vars_scanned. We only care about recursive
6070 delete $vars_scanned{$var};
6072 # If we are being called on behalf of another variable, we need to
6073 # return all possible permutations of the conditions. We have
6074 # already handled everything in @this_conds along with their
6075 # subvariables. We now need to add any permutations that are not
6077 foreach my $this_cond (@this_conds)
6080 variable_conditions_permutations (split (' ', $this_cond));
6081 foreach my $perm (@perms)
6084 foreach my $scan (@this_conds)
6086 if (&conditional_true_when ($perm, $scan)
6087 || &conditional_true_when ($scan, $perm))
6095 # This permutation was not already handled, and is valid
6097 push (@new_conds, $perm);
6105 # Filter a list of conditionals so that only the exclusive ones are
6106 # retained. For example, if both `COND1_TRUE COND2_TRUE' and
6107 # `COND1_TRUE' are in the list, discard the latter.
6108 # If the list is empty, return TRUE
6109 sub variable_conditions_reduce
6116 $cond = shift(@conds);
6118 # FALSE is absorbent.
6119 if ($cond eq 'FALSE')
6123 elsif (!conditional_is_redundant ($cond, @ret, @conds))
6129 return "TRUE" if @ret == 0;
6134 # invert_conditions (@CONDS)
6135 # --------------------------
6136 # Invert a list of conditionals. Returns a set of conditionals which
6137 # are never true for any of the input conditionals, and when taken
6138 # together with the input conditionals cover all possible cases.
6140 # For example: invert_conditions("A_TRUE B_TRUE", "A_FALSE B_FALSE") will
6141 # return ("A_FALSE B_TRUE", "A_TRUE B_FALSE")
6142 sub invert_conditions
6147 foreach my $cond (@conds)
6149 foreach my $perm (variable_conditions_permutations (split(' ', $cond)))
6151 push @notconds, $perm
6152 if ! conditional_is_redundant ($perm, @conds);
6155 return variable_conditions_reduce (@notconds);
6158 # Return a list of permutations of a conditional string.
6159 sub variable_conditions_permutations
6164 my $comp = shift (@comps);
6165 return variable_conditions_permutations (@comps)
6167 my $neg = condition_negate ($comp);
6170 foreach my $sub (variable_conditions_permutations (@comps))
6172 push (@ret, "$comp $sub");
6173 push (@ret, "$neg $sub");
6185 # &check_variable_defined_unconditionally($VAR, $PARENT)
6186 # ------------------------------------------------------
6187 # Warn if a variable is conditionally defined. This is called if we
6188 # are using the value of a variable.
6189 sub check_variable_defined_unconditionally ($$)
6191 my ($var, $parent) = @_;
6192 foreach my $cond (keys %{$var_value{$var}})
6195 if $cond =~ /^TRUE|FALSE$/;
6199 &am_line_error ($parent,
6200 "warning: automake does not support conditional definition of $var in $parent");
6204 &am_line_error ($parent,
6205 "warning: automake does not support $var being defined conditionally");
6211 # Get the TRUE value of a variable, warn if the variable is
6212 # conditionally defined.
6216 &check_variable_defined_unconditionally ($var);
6217 return $var_value{$var}{'TRUE'};
6222 # &value_to_list ($VAR, $VAL, $COND)
6223 # ----------------------------------
6224 # Convert a variable value to a list, split as whitespace. This will
6225 # recursively follow $(...) and ${...} inclusions. It preserves @...@
6228 # If COND is 'all', then all values under all conditions should be
6229 # returned; if COND is a particular condition (all conditions are
6230 # surrounded by @...@) then only the value for that condition should
6231 # be returned; otherwise, warn if VAR is conditionally defined.
6232 # SCANNED is a global hash listing whose keys are all the variables
6233 # already scanned; it is an error to rescan a variable.
6236 my ($var, $val, $cond) = @_;
6240 $val =~ s/\\(\n|$)/ /g;
6242 foreach (split (' ', $val))
6244 # If a comment seen, just leave.
6247 # Handle variable substitutions.
6248 if (/^\$\{([^}]*)\}$/ || /^\$\(([^)]*)\)$/)
6252 # If the user uses a losing variable name, just ignore it.
6253 # This isn't ideal, but people have requested it.
6254 next if ($varname =~ /\@.*\@/);
6258 if ($varname =~ /$SUBST_REF_PATTERN/o)
6262 ($from = $2) =~ s/(\W)/\\$1/g;
6266 @temp_list = &variable_value_as_list_recursive_worker ($1, $cond, $var);
6268 # Now rewrite the value if appropriate.
6271 grep (s/$from$/$to/, @temp_list);
6274 push (@result, @temp_list);
6286 # variable_value_as_list ($VAR, $COND, $PARENT)
6287 # ---------------------------------------------
6288 # Get the value of a variable given a specified condition. without
6289 # recursing through any subvariables.
6291 # $VAR is the variable
6292 # $COND is the condition. If this is not given, the value for the
6293 # "TRUE" condition will be returned.
6294 # $PARENT is the variable in which the variable is used: this is used
6295 # only for error messages.
6296 # Returns the list of conditions.
6297 # For example, if A is defined as "foo $(B) bar", and B is defined as
6298 # "baz", this will return ("foo", "$(B)", "bar")
6299 sub variable_value_as_list
6301 my ($var, $cond, $parent) = @_;
6305 if (! defined $var_value{$var})
6307 if (defined $targets{$var})
6309 &am_line_error ($var, "`$var' is a target; expected a variable");
6313 &am_line_error ($parent, "variable `$var' not defined");
6317 # Get value for given condition
6320 foreach my $vcond (keys %{$var_value{$var}})
6322 my $val = $var_value{$var}{$vcond};
6324 if (&conditional_true_when ($vcond, $cond))
6326 # Unless variable is not defined conditionally, there should only
6327 # be one value of $vcond true when $cond.
6328 &check_variable_defined_unconditionally ($var, $parent)
6333 $val =~ s/\\(\n|$)/ /g;
6335 foreach (split (' ', $val))
6337 # If a comment seen, just leave.
6348 # Return contents of variable as list, split as whitespace. This will
6349 # recursively follow $(...) and ${...} inclusions. It preserves @...@
6350 # substitutions. If COND is 'all', then all values under all
6351 # conditions should be returned; if COND is a particular condition
6352 # (all conditions are surrounded by @...@) then only the value for
6353 # that condition should be returned; otherwise, warn if VAR is
6354 # conditionally defined. If PARENT is specified, it is the name of
6355 # the including variable; this is only used for error reports.
6356 sub variable_value_as_list_recursive_worker
6358 my ($var, $cond, $parent) = @_;
6361 if (! defined $var_value{$var})
6363 if (defined $targets{$var})
6365 &am_line_error ($var, "`$var' is a target; expected a variable");
6369 &am_line_error ($parent, "variable `$var' not defined");
6372 elsif (defined $vars_scanned{$var})
6374 # `vars_scanned' is a global we use to keep track of which
6375 # variables we've already examined.
6376 &am_line_error ($parent, "variable `$var' recursively defined");
6378 elsif ($cond eq 'all')
6380 $vars_scanned{$var} = 1;
6381 foreach my $vcond (keys %{$var_value{$var}})
6383 my $val = $var_value{$var}{$vcond};
6384 push (@result, &value_to_list ($var, $val, $cond));
6390 $vars_scanned{$var} = 1;
6392 foreach my $vcond (keys %{$var_value{$var}})
6394 my $val = $var_value{$var}{$vcond};
6395 if (&conditional_true_when ($vcond, $cond))
6397 # Warn if we have an ambiguity. It's hard to know how
6398 # to handle this case correctly.
6399 &check_variable_defined_unconditionally ($var, $parent)
6402 push (@result, &value_to_list ($var, $val, $cond));
6407 # Unset our entry in vars_scanned. We only care about recursive
6409 delete $vars_scanned{$var};
6415 # &variable_output ($VAR, [@CONDS])
6416 # ---------------------------------
6417 # Output all the values of $VAR is @COND is not specified, else only
6418 # that corresponding to @COND.
6419 sub variable_output ($@)
6421 my ($var, @conds) = @_;
6423 @conds = keys %{$var_value{$var}}
6426 $output_vars .= $var_comment{$var}
6427 if defined $var_comment{$var};
6429 foreach my $cond (sort by_condition @conds)
6431 my $val = $var_value{$var}{$cond};
6432 my $equals = $var_type{$var} eq ':' ? ':=' : '=';
6433 my $output_var = "$var $equals $val";
6434 $output_var =~ s/^/make_condition ($cond)/meg;
6435 $output_vars .= $output_var . "\n";
6440 # &variable_pretty_output ($VAR, [@CONDS])
6441 # ----------------------------------------
6442 # Likewise, but pretty, i.e., we *split* the values at spaces. Use only
6443 # with variables holding filenames.
6444 sub variable_pretty_output ($@)
6446 my ($var, @conds) = @_;
6448 @conds = keys %{$var_value{$var}}
6451 $output_vars .= $var_comment{$var}
6452 if defined $var_comment{$var};
6454 foreach my $cond (sort by_condition @conds)
6456 my $val = $var_value{$var}{$cond};
6457 my $equals = $var_type{$var} eq ':' ? ':=' : '=';
6458 my $make_condition = make_condition ($cond);
6459 $output_vars .= pretty_print_internal ("$make_condition$var $equals",
6460 "$make_condition\t",
6461 split (' ' , $val));
6466 # This is just a wrapper for variable_value_as_list_recursive_worker that
6467 # initializes the global hash `vars_scanned'. This hash is used to
6468 # avoid infinite recursion.
6469 sub variable_value_as_list_recursive
6471 my ($var, $cond, $parent) = @_;
6473 return &variable_value_as_list_recursive_worker ($var, $cond, $parent);
6477 # Like define_variable, but the value is a list, and the variable may
6478 # be defined conditionally. The second argument is the conditional
6479 # under which the value should be defined; this should be the empty
6480 # string to define the variable unconditionally. The third argument
6481 # is a list holding the values to use for the variable. The value is
6482 # pretty printed in the output file.
6483 sub define_pretty_variable
6485 my ($var, $cond, @value) = @_;
6487 # Beware that an empty $cond has a different semantics for
6488 # macro_define and variable_pretty_output.
6491 if (! &variable_defined ($var, $cond))
6493 macro_define ($var, 1, '', $cond, join (' ', @value), undef);
6494 variable_pretty_output ($var, $cond || 'TRUE');
6495 $content_seen{$var} = 1;
6500 # define_variable ($VAR, $VALUE)
6501 # ------------------------------
6502 # Define a new user variable VAR to VALUE, but only if not already defined.
6505 my ($var, $value) = @_;
6507 define_pretty_variable ($var, 'TRUE', $value);
6511 # Like define_variable, but define a variable to be the configure
6512 # substitution by the same name.
6513 sub define_configure_variable
6516 my $value = '@' . $var . '@';
6517 &define_variable ($var, $value);
6521 # define_compiler_variable ($LANG)
6522 # --------------------------------
6523 # Define a compiler variable. We also handle defining the `LT'
6524 # version of the command when using libtool.
6525 sub define_compiler_variable ($)
6529 my ($var, $value) = ($lang->compiler, $lang->compile);
6530 &define_variable ($var, $value);
6531 &define_variable ("LT$var", "\$(LIBTOOL) --mode=compile $value")
6536 # define_linker_variable ($LANG)
6537 # ------------------------------
6538 # Define linker variables.
6539 sub define_linker_variable ($)
6543 my ($var, $value) = ($lang->lder, $lang->ld);
6545 &define_variable ($lang->lder, $lang->ld);
6546 # CCLINK = $(CCLD) blah blah...
6547 &define_variable ($lang->linker,
6548 (($seen_libtool ? '$(LIBTOOL) --mode=link ' : '')
6552 ################################################################
6554 ## ---------------- ##
6555 ## Handling rules. ##
6556 ## ---------------- ##
6559 # rule_define ($TARGET, $IS_AM, $COND, $WHERE)
6560 # --------------------------------------------
6561 # Define a new rule. $TARGET is the rule name. $IS_AM is a boolean
6562 # which is true if the new rule is defined by the user. $COND is the
6563 # condition under which the rule is defined. $WHERE is where the rule
6564 # is defined (file name or line number). Returns true if it is ok to
6565 # define the rule, false otherwise.
6566 sub rule_define ($$$$)
6568 my ($target, $rule_is_am, $cond, $where) = @_;
6570 # For now `foo:' will override `foo$(EXEEXT):'. This is temporary,
6571 # though, so we emit a warning.
6572 (my $noexe = $target) =~ s,\$\(EXEEXT\)$,,;
6573 if ($noexe ne $target && defined $targets{$noexe})
6575 # The no-exeext option enables this feature.
6576 if (! defined $options{'no-exeext'})
6578 &am_line_error ($noexe,
6579 "deprecated feature: `$noexe' overrides `$noexe\$(EXEEXT)'\nchange your target to read `$noexe\$(EXEEXT)'");
6585 if (defined $targets{$target}
6587 ? ! defined $target_conditional{$target}
6588 : defined $target_conditional{$target}))
6590 &am_line_error ($target,
6591 "$target defined both conditionally and unconditionally");
6594 # Value here doesn't matter; for targets we only note existence.
6595 $targets{$target} = $where;
6598 if ($target_conditional{$target})
6600 &check_ambiguous_conditional ($target, $cond);
6602 $target_conditional{$target}{$cond} = $where;
6606 # Check the rule for being a suffix rule. If so, store in a hash.
6608 if ((my ($source_suffix, $object_suffix)) = ($target =~ $SUFFIX_RULE_PATTERN))
6610 $suffix_rules{$source_suffix} = $object_suffix;
6611 print "Sources ending in .$source_suffix become .$object_suffix\n"
6613 # Set SUFFIXES from suffix_rules.
6614 push @suffixes, ".$source_suffix", ".$object_suffix";
6621 # See if a target exists.
6625 return defined $targets{$target};
6629 ################################################################
6631 # Read Makefile.am and set up %contents. Simultaneously copy lines
6632 # from Makefile.am into $output_trailer or $output_vars as
6633 # appropriate. NOTE we put rules in the trailer section. We want
6634 # user rules to come after our generated stuff.
6639 my $am_file = new Automake::XFile ("< $amfile");
6640 print "$me: reading $amfile\n" if $verbose;
6646 while ($_ = $am_file->getline)
6648 if (/$IGNORE_PATTERN/o)
6650 # Merely delete comments beginning with two hashes.
6652 elsif (/$WHITE_PATTERN/o)
6654 # Stick a single white line before the incoming macro or rule.
6658 elsif (/$COMMENT_PATTERN/o)
6660 # Stick comments before the incoming macro or rule. Make
6661 # sure a blank line preceeds first block of comments.
6662 $spacing = "\n" unless $blank;
6664 $comment .= $spacing . $_;
6673 $output_vars .= $comment . "\n";
6677 # We save the conditional stack on entry, and then check to make
6678 # sure it is the same on exit. This lets us conditonally include
6680 my @saved_cond_stack = @cond_stack;
6681 my $cond = conditional_string (@cond_stack);
6685 my $last_var_name = '';
6686 my $last_var_type = '';
6687 my $last_var_value = '';
6688 # FIXME: shouldn't use $_ in this loop; it is too big.
6692 unless substr ($_, -1, 1) eq "\n";
6694 # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
6695 # used by users. @MAINT@ is an anachronism now.
6696 $_ =~ s/\@MAINT\@//g
6697 unless $seen_maint_mode;
6699 my $new_saw_bk = /\\$/ && ! /$COMMENT_PATTERN/o;
6701 if (/$IGNORE_PATTERN/o)
6703 # Merely delete comments beginning with two hashes.
6705 elsif (/$WHITE_PATTERN/o)
6707 # Stick a single white line before the incoming macro or rule.
6709 &am_line_error ($., "blank line following trailing backslash")
6712 elsif (/$COMMENT_PATTERN/o)
6714 # Stick comments before the incoming macro or rule.
6715 $comment .= $spacing . $_;
6717 &am_line_error ($., "comment following trailing backslash")
6724 $output_trailer .= &make_condition (@cond_stack);
6725 $output_trailer .= $_;
6729 $last_var_value .= ' '
6730 unless $last_var_value =~ /\s$/;
6731 $last_var_value .= $_;
6735 $var_comment{$last_var_name} .= "$spacing"
6736 if (!defined $var_comment{$last_var_name}
6737 || substr ($var_comment{$last_var_name}, -1) ne "\n");
6738 $var_comment{$last_var_name} .= "$comment";
6739 $comment = $spacing = '';
6740 macro_define ($last_var_name, 0,
6741 $last_var_type, $cond,
6742 $last_var_value, $.)
6743 if $cond ne 'FALSE';
6744 push (@var_list, $last_var_name);
6749 elsif (/$IF_PATTERN/o)
6751 $cond = cond_stack_if ($1, $2, "$amfile:$.");
6753 elsif (/$ELSE_PATTERN/o)
6755 $cond = cond_stack_else ($1, $2, "$amfile:$.");
6757 elsif (/$ENDIF_PATTERN/o)
6759 $cond = cond_stack_endif ($1, $2, "$amfile:$.");
6762 elsif (/$RULE_PATTERN/o)
6767 rule_define ($1, 0, $cond, $.);
6770 $output_trailer .= $comment . $spacing;
6771 $output_trailer .= &make_condition (@cond_stack);
6772 $output_trailer .= $_;
6773 $comment = $spacing = '';
6775 elsif (/$ASSIGNMENT_PATTERN/o)
6777 # Found a macro definition.
6779 $last_var_name = $1;
6780 $last_var_type = $2;
6781 $last_var_value = $3;
6782 if ($3 ne '' && substr ($3, -1) eq "\\")
6784 # We preserve the `\' because otherwise the long lines
6785 # that are generated will be truncated by broken
6787 $last_var_value = $3 . "\n";
6792 # FIXME: this doesn't always work correctly; it will
6793 # group all comments for a given variable, no matter
6795 # Accumulating variables must not be output.
6796 $var_comment{$last_var_name} .= "$spacing"
6797 if (!defined $var_comment{$last_var_name}
6798 || substr ($var_comment{$last_var_name}, -1) ne "\n");
6799 $var_comment{$last_var_name} .= "$comment";
6800 $comment = $spacing = '';
6802 macro_define ($last_var_name, 0,
6803 $last_var_type, $cond,
6804 $last_var_value, $.)
6805 if $cond ne 'FALSE';
6806 push (@var_list, $last_var_name);
6809 elsif (/$INCLUDE_PATTERN/o)
6813 if ($path =~ s/^\$\(top_srcdir\)\///)
6815 push (@include_stack, "\$\(top_srcdir\)/$path");
6819 $path =~ s/\$\(srcdir\)\///;
6820 push (@include_stack, "\$\(srcdir\)/$path");
6821 $path = $relative_dir . "/" . $path;
6823 &read_am_file ($path);
6827 # This isn't an error; it is probably a continued rule.
6828 # In fact, this is what we assume.
6830 $output_trailer .= $comment . $spacing;
6831 $output_trailer .= &make_condition (@cond_stack);
6832 $output_trailer .= $_;
6833 $comment = $spacing = '';
6834 &am_line_error ($., "`#' comment at start of rule is unportable")
6835 if $_ =~ /^\t\s*\#/;
6838 $saw_bk = $new_saw_bk;
6839 $_ = $am_file->getline;
6842 $output_trailer .= $comment;
6844 if (join (' ', @saved_cond_stack) ne join (' ', @cond_stack))
6848 &am_error ("unterminated conditionals: @cond_stack");
6852 # FIXME: better error message here.
6853 &am_error ("conditionals not nested in include file");
6859 # define_standard_variables ()
6860 # ----------------------------
6861 # A helper for read_main_am_file which initializes configure variables
6862 # and variables from header-vars.am. This is a subr so we can call it
6864 sub define_standard_variables
6866 my $saved_output_vars = $output_vars;
6867 my ($comments, undef, $rules) =
6868 file_contents_internal (1, "$libdir/am/header-vars.am");
6870 # This will output the definitions in $output_vars, which we don't
6872 foreach my $var (sort keys %configure_vars)
6874 &define_configure_variable ($var);
6875 push (@var_list, $var);
6878 # ... hence, we restore $output_vars.
6879 $output_vars = $saved_output_vars . $comments . $rules;
6882 # Read main am file.
6883 sub read_main_am_file
6887 # This supports the strange variable tricks we are about to play.
6888 if (scalar keys %var_value > 0)
6891 &prog_error ("variable defined before read_main_am_file");
6894 # Generate copyright header for generated Makefile.in.
6895 # We do discard the output of predefined variables, handled below.
6896 $output_vars = ("# $in_file_name generated by automake "
6897 . $VERSION . " from $am_file_name.\n");
6898 $output_vars .= '# ' . subst ('configure_input') . "\n";
6899 $output_vars .= $gen_copyright;
6901 # We want to predefine as many variables as possible. This lets
6902 # the user set them with `+=' in Makefile.am. However, we don't
6903 # want these initial definitions to end up in the output quite
6904 # yet. So we just load them, but output them later.
6905 &define_standard_variables;
6907 # Read user file, which might override some of our values.
6908 &read_am_file ($amfile);
6910 # Ouput all the Automake variables. If the user changed one, then
6911 # it is now marked as owned by the user.
6912 foreach my $var (uniq @var_list)
6914 # Don't process user variables.
6915 variable_output ($var)
6916 unless !$var_is_am{$var};
6919 # Now dump the user variables that were defined. We do it in the same
6920 # order in which they were defined (skipping duplicates).
6921 foreach my $var (uniq @var_list)
6923 # Don't process Automake variables.
6924 variable_output ($var)
6925 unless $var_is_am{$var};
6929 ################################################################
6932 # &flatten ($STRING)
6933 # ------------------
6934 # Flatten the $STRING and return the result.
6949 # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
6950 # ------------------------------------------
6951 # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
6953 sub make_paragraphs ($%)
6955 my ($file, %transform) = @_;
6957 # Complete %transform with global options and make it a Perl
6960 "s/$IGNORE_PATTERN//gm;"
6961 . transform (%transform,
6963 'CYGNUS' => $cygnus_mode,
6965 => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
6967 'SHAR' => $options{'dist-shar'} || 0,
6968 'BZIP2' => $options{'dist-bzip2'} || 0,
6969 'ZIP' => $options{'dist-zip'} || 0,
6970 'COMPRESS' => $options{'dist-tarZ'} || 0,
6972 'INSTALL-INFO' => !$options{'no-installinfo'},
6973 'INSTALL-MAN' => !$options{'no-installman'},
6974 'CK-NEWS' => $options{'check-news'} || 0,
6976 'SUBDIRS' => &variable_defined ('SUBDIRS'),
6977 'TOPDIR' => backname ($relative_dir),
6978 'TOPDIR_P' => $relative_dir eq '.',
6979 'CONFIGURE-AC' => $configure_ac,
6981 'BUILD' => $seen_canonical == $AC_CANONICAL_SYSTEM,
6982 'HOST' => $seen_canonical,
6983 'TARGET' => $seen_canonical == $AC_CANONICAL_SYSTEM,
6985 'LIBTOOL' => defined $configure_vars{'LIBTOOL'})
6986 # We don't need more than two consecutive new-lines.
6987 . 's/\n{3,}/\n\n/g';
6989 # Swallow the file and apply the COMMAND.
6990 my $fc_file = new Automake::XFile ("< $file");
6992 print "$me: reading $file\n"
6994 my $saved_dollar_slash = $/;
6996 $_ = $fc_file->getline;
6997 $/ = $saved_dollar_slash;
7002 # Split at unescaped new lines.
7003 my @lines = split (/(?<!\\)\n/, $content);
7006 while (defined ($_ = shift @lines))
7008 my $paragraph = "$_";
7009 # If we are a rule, eat as long as we start with a tab.
7010 if (/$RULE_PATTERN/smo)
7012 while (defined ($_ = shift @lines) && $_ =~ /^\t/)
7014 $paragraph .= "\n$_";
7016 unshift (@lines, $_);
7019 # If we are a comments, eat as much comments as you can.
7020 elsif (/$COMMENT_PATTERN/smo)
7022 while (defined ($_ = shift @lines)
7023 && $_ =~ /$COMMENT_PATTERN/smo)
7025 $paragraph .= "\n$_";
7027 unshift (@lines, $_);
7030 push @res, $paragraph;
7039 # ($COMMENT, $VARIABLES, $RULES)
7040 # &file_contents_internal ($IS_AM, $FILE, [%TRANSFORM])
7041 # -----------------------------------------------------
7042 # Return contents of a file from $libdir/am, automatically skipping
7043 # macros or rules which are already known. $IS_AM iff the caller is
7044 # reading an Automake file (as opposed to the user's Makefile.am).
7045 sub file_contents_internal ($$%)
7047 my ($is_am, $file, %transform) = @_;
7049 my $result_vars = '';
7050 my $result_rules = '';
7054 # We save the conditional stack on entry, and then check to make
7055 # sure it is the same on exit. This lets us conditonally include
7057 my @saved_cond_stack = @cond_stack;
7058 my $cond = conditional_string (@cond_stack);
7060 foreach (make_paragraphs ($file, %transform))
7063 &am_file_error ($file, "blank line following trailing backslash:\n$_")
7065 &am_file_error ($file, "comment following trailing backslash:\n$_")
7070 # Stick empty line before the incoming macro or rule.
7073 elsif (/$COMMENT_PATTERN/mso)
7075 # Stick comments before the incoming macro or rule.
7079 # Handle inclusion of other files.
7080 elsif (/$INCLUDE_PATTERN/o)
7082 if ($cond ne 'FALSE')
7084 my $file = ($is_am ? "$libdir/am/" : '') . $1;
7086 my ($com, $vars, $rules)
7087 = file_contents_internal ($is_am, $file, %transform);
7089 $result_vars .= $vars;
7090 $result_rules .= $rules;
7094 # Handling the conditionals.
7095 elsif (/$IF_PATTERN/o)
7097 $cond = cond_stack_if ($1, $2, $file);
7099 elsif (/$ELSE_PATTERN/o)
7101 $cond = cond_stack_else ($1, $2, $file);
7103 elsif (/$ENDIF_PATTERN/o)
7105 $cond = cond_stack_endif ($1, $2, $file);
7109 elsif (/$RULE_PATTERN/mso)
7111 # Separate relationship from optional actions: the first
7112 # `new-line tab" not preceded by backslash (continuation
7114 # I'm quite shoked! It seems that (\\\n|[^\n]) is not the
7115 # same as `([^\n]|\\\n)!!! Don't swap it, it breaks.
7117 /^((?:\\\n|[^\n])*)(?:\n(\t.*))?$/som;
7118 my ($relationship, $actions) = ($1, $2 || '');
7120 # Separate targets from dependencies: the first colon.
7121 $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
7122 my ($targets, $dependencies) = ($1, $2);
7123 # Remove the escaped new lines.
7124 # I don't know why, but I have to use a tmp $flat_deps.
7125 my $flat_deps = &flatten ($dependencies);
7126 my @deps = split (' ', $flat_deps);
7128 foreach (split (' ' , $targets))
7130 # FIXME: We are not robust to people defining several targets
7131 # at once, only some of them being in %dependencies.
7133 # Output only if not in FALSE.
7134 if (defined $dependencies{$_}
7135 && $cond ne 'FALSE')
7137 &depend ($_, @deps);
7138 $actions{$_} .= $actions;
7142 # Free-lance dependency. Output the rule for all the
7143 # targets instead of one by one.
7145 # Work out all the conditions for which the target hasn't
7147 my @undefined_conds;
7148 if (defined $target_conditional{$targets})
7150 my @defined_conds = keys %{$target_conditional{$targets}};
7151 @undefined_conds = invert_conditions(@defined_conds);
7155 if (defined $targets{$targets})
7157 # No conditions for which target hasn't been defined
7158 @undefined_conds = ();
7162 # Target hasn't been defined for any conditions
7163 @undefined_conds = ("");
7167 if ($cond ne 'FALSE')
7170 for $undefined_cond (@undefined_conds)
7172 my $condparagraph = $paragraph;
7173 $condparagraph =~ s/^/make_condition (@cond_stack, $undefined_cond)/gme;
7174 $result_rules .= "$spacing$comment$condparagraph\n"
7175 if rule_define ($targets, $is_am,
7176 "$cond $undefined_cond", $file);
7179 $comment = $spacing = '';
7185 elsif (/$ASSIGNMENT_PATTERN/mso)
7187 my ($var, $type, $val) = ($1, $2, $3);
7188 &am_file_error ($file, "macro `$var' with trailing backslash")
7191 # Accumulating variables must not be output.
7192 $var_comment{$var} .= "$spacing"
7193 if (!defined $var_comment{$var}
7194 || substr ($var_comment{$var}, -1) ne "\n");
7195 $var_comment{$var} .= "$comment";
7196 macro_define ($var, $is_am, $type, $cond, $val, $file)
7197 if $cond ne 'FALSE';
7198 push (@var_list, $var);
7200 # If the user has set some variables we were in charge
7201 # of (which is detected by the first reading of
7202 # `header-vars.am'), we must not output them.
7203 $result_vars .= "$spacing$comment$_\n"
7204 if $type ne '+' && $var_is_am{$var} && $cond ne 'FALSE';
7206 $comment = $spacing = '';
7210 # This isn't an error; it is probably some tokens which
7211 # configure is supposed to replace, such as `@SET-MAKE@',
7212 # or some part of a rule cut by an if/endif.
7213 if ($cond ne 'FALSE')
7215 s/^/make_condition (@cond_stack)/gme;
7216 $result_rules .= "$spacing$comment$_\n";
7218 $comment = $spacing = '';
7222 if (join (' ', @saved_cond_stack) ne join (' ', @cond_stack))
7226 &am_error ("unterminated conditionals: @cond_stack");
7230 # FIXME: better error message here.
7231 &am_error ("conditionals not nested in include file");
7235 return ($comment, $result_vars, $result_rules);
7240 # &file_contents ($BASENAME, [%TRANSFORM])
7241 # ----------------------------------------
7242 # Return contents of a file from $libdir/am, automatically skipping
7243 # macros or rules which are already known.
7244 sub file_contents ($%)
7246 my ($basename, %transform) = @_;
7247 my ($comments, $variables, $rules) =
7248 file_contents_internal (1, "$libdir/am/$basename.am", %transform);
7249 return "$comments$variables$rules";
7254 # &transform (%PAIRS)
7255 # -------------------
7256 # Foreach ($TOKEN, $VAL) in %PAIRS produce a replacement expression suitable
7257 # for file_contents which:
7258 # - replaces @$TOKEN@ with $VALUE,
7259 # - enables/disables ?$TOKEN?.
7265 while (my ($token, $val) = each %pairs)
7267 $result .= "s/\Q%$token%\E/\Q$val\E/gm;";
7270 $result .= "s/\Q?$token?\E//gm;s/^.*\Q?!$token?\E.*\\n//gm;";
7271 $result .= "s/\Q%?$token%\E/TRUE/gm;";
7275 $result .= "s/\Q?!$token?\E//gm;s/^.*\Q?$token?\E.*\\n//gm;";
7276 $result .= "s/\Q%?$token%\E/FALSE/gm;";
7284 # Find all variable prefixes that are used for install directories. A
7285 # prefix `zar' qualifies iff:
7286 # * `zardir' is a variable.
7287 # * `zar_PRIMARY' is a variable.
7288 sub am_primary_prefixes
7290 my ($primary, $can_dist, @prefixes) = @_;
7292 my %valid = map { $_ => 0 } @prefixes;
7293 $valid{'EXTRA'} = 0;
7294 foreach my $varname (keys %var_value)
7296 # Automake is allowed to define variables that look like they
7297 # are magic variables, such as INSTALL_DATA.
7299 if $var_is_am{$varname};
7301 if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_$primary$/)
7303 my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
7304 if ($dist ne '' && ! $can_dist)
7306 # Note that a configure variable is always legitimate.
7307 # It is natural to name such variables after the
7308 # primary, so we explicitly allow it.
7309 if (! defined $configure_vars{$varname})
7311 &am_line_error ($varname,
7312 "invalid variable `$varname': `dist' is forbidden");
7315 elsif (! defined $valid{$X} && ! &variable_defined ("${X}dir"))
7317 # Note that a configure variable is always legitimate.
7318 # It is natural to name such variables after the
7319 # primary, so we explicitly allow it.
7320 if (! defined $configure_vars{$varname})
7322 &am_line_error ($varname,
7323 "invalid variable `$varname'");
7328 # Ensure all extended prefixes are actually used.
7329 $valid{"$base$dist$X"} = 1;
7337 # Handle `where_HOW' variable magic. Does all lookups, generates
7338 # install code, and possibly generates code to define the primary
7339 # variable. The first argument is the name of the .am file to munge,
7340 # the second argument is the primary variable (eg HEADERS), and all
7341 # subsequent arguments are possible installation locations. Returns
7342 # list of all values of all _HOW targets.
7344 # FIXME: this should be rewritten to be cleaner. It should be broken
7345 # up into multiple functions.
7347 # Usage is: am_install_var (OPTION..., file, HOW, where...)
7354 my $default_dist = 0;
7357 if ($args[0] eq '-noextra')
7361 elsif ($args[0] eq '-candist')
7365 elsif ($args[0] eq '-defaultdist')
7370 elsif ($args[0] !~ /^-/)
7377 my ($file, $primary, @prefixes) = @args;
7379 # Now that configure substitutions are allowed in where_HOW
7380 # variables, it is an error to actually define the primary. We
7381 # allow `JAVA', as it is customarily used to mean the Java
7382 # interpreter. This is but one of several Java hacks. Similarly,
7383 # `PYTHON' is customarily used to mean the Python interpreter.
7384 &am_line_error ($primary, "`$primary' is an anachronism")
7385 if &variable_defined ($primary)
7386 && ($primary ne 'JAVA' && $primary ne 'PYTHON');
7389 # Look for misspellings. It is an error to have a variable ending
7390 # in a "reserved" suffix whose prefix is unknown, eg
7391 # "bni_PROGRAMS". However, unusual prefixes are allowed if a
7392 # variable of the same name (with "dir" appended) exists. For
7393 # instance, if the variable "zardir" is defined, then
7394 # "zar_PROGRAMS" becomes valid. This is to provide a little extra
7395 # flexibility in those cases which need it.
7396 my %valid = &am_primary_prefixes ($primary, $can_dist, @prefixes);
7398 # If a primary includes a configure substitution, then the EXTRA_
7399 # form is required. Otherwise we can't properly do our job.
7401 my $warned_about_extra = 0;
7406 # True if the iteration is the first one. Used for instance to
7407 # output parts of the associated file only once.
7409 foreach my $X (sort keys %valid)
7411 my $nodir_name = $X;
7412 my $one_name = $X . '_' . $primary;
7414 unless (&variable_defined ($one_name));
7416 my $strip_subdir = 1;
7417 # If subdir prefix should be preserved, do so.
7418 if ($nodir_name =~ /^nobase_/)
7421 $nodir_name =~ s/^nobase_//;
7424 # If files should be distributed, do so.
7428 $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
7429 || (! $default_dist && $nodir_name =~ /^dist_/));
7430 $nodir_name =~ s/^(dist|nodist)_//;
7433 # Append actual contents of where_PRIMARY variable to
7435 foreach my $rcurs (&variable_value_as_list_recursive ($one_name, 'all'))
7437 # Skip configure substitutions. Possibly bogus.
7438 if ($rcurs =~ /^\@.*\@$/)
7440 if ($nodir_name eq 'EXTRA')
7442 if (! $warned_about_extra)
7444 $warned_about_extra = 1;
7445 &am_line_error ($one_name,
7446 "`$one_name' contains configure substitution, but shouldn't");
7449 # Check here to make sure variables defined in
7450 # configure.ac do not imply that EXTRA_PRIMARY
7452 elsif (! defined $configure_vars{$one_name})
7454 $require_extra = $one_name
7461 push (@result, $rcurs);
7464 # A blatant hack: we rewrite each _PROGRAMS primary to include
7466 if ($primary eq 'PROGRAMS')
7468 my @conds = variable_conditions_recursive ($one_name);
7471 foreach my $cond (@conds)
7473 my @one_binlist = ();
7474 my @condval = &variable_value_as_list_recursive ($one_name,
7476 foreach my $rcurs (@condval)
7478 # Skip autoconf substs. Also skip if the user
7479 # already applied $(EXEEXT).
7480 if ($rcurs =~ /^\@.*\@$/ || $rcurs =~ /\$\(EXEEXT\)$/)
7482 push (@one_binlist, $rcurs);
7486 push (@one_binlist, $rcurs . '$(EXEEXT)');
7490 push (@condvals, $cond);
7491 push (@condvals, join (' ', @one_binlist));
7494 variable_delete ($one_name);
7497 my $cond = shift (@condvals);
7498 my @val = split (' ', shift (@condvals));
7499 define_pretty_variable ($one_name, $cond, @val);
7503 # "EXTRA" shouldn't be used when generating clean targets,
7504 # all, or install targets.
7505 if ($nodir_name eq 'EXTRA')
7507 # We used to warn if EXTRA_FOO was defined uselessly,
7508 # but this was annoying.
7512 if ($nodir_name eq 'check')
7514 push (@check, '$(' . $one_name . ')');
7518 push (@used, '$(' . $one_name . ')');
7521 # Is this to be installed?
7522 my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
7524 # If so, with install-exec? (or install-data?).
7525 my $exec_p = (defined $exec_dir_p {$nodir_name}
7526 ? $exec_dir_p {$nodir_name}
7527 : ($nodir_name =~ /exec/));
7529 # Singular form of $PRIMARY.
7530 (my $one_primary = $primary) =~ s/S$//;
7531 $output_rules .= &file_contents ($file,
7534 'PRIMARY' => $primary,
7535 'ONE_PRIMARY' => $one_primary,
7537 'NDIR' => $nodir_name,
7538 'BASE' => $strip_subdir,
7541 'INSTALL' => $install_p,
7542 'DIST' => $dist_p));
7547 # The JAVA variable is used as the name of the Java interpreter.
7548 # The PYTHON variable is used as the name of the Python interpreter.
7549 if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
7552 define_pretty_variable ($primary, '', @used);
7553 $output_vars .= "\n";
7556 if ($require_extra && ! &variable_defined ('EXTRA_' . $primary))
7558 &am_line_error ($require_extra,
7559 "`$require_extra' contains configure substitution, but `EXTRA_$primary' not defined");
7562 # Push here because PRIMARY might be configure time determined.
7563 push (@all, '$(' . $primary . ')')
7564 if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
7566 # Make the result unique. This lets the user use conditionals in
7567 # a natural way, but still lets us program lazily -- we don't have
7568 # to worry about handling a particular object more than once.
7569 return uniq (sort @result);
7573 ################################################################
7575 # Each key in this hash is the name of a directory holding a
7576 # Makefile.in. These variables are local to `is_make_dir'.
7578 my $make_dirs_set = 0;
7583 if (! $make_dirs_set)
7585 foreach my $iter (@configure_input_files)
7587 $make_dirs{dirname ($iter)} = 1;
7589 # We also want to notice Makefile.in's.
7590 foreach my $iter (@other_input_files)
7592 if ($iter =~ /Makefile\.in$/)
7594 $make_dirs{dirname ($iter)} = 1;
7599 return defined $make_dirs{$dir};
7602 ################################################################
7604 # This variable is local to the "require file" set of functions.
7605 my @require_file_paths = ();
7607 # If a file name appears as a key in this hash, then it has already
7608 # been checked for. This variable is local to the "require file"
7610 %require_file_found = ();
7612 # See if we want to push this file onto dist_common. This function
7613 # encodes the rules for deciding when to do so.
7614 sub maybe_push_required_file
7616 my ($dir, $file, $fullfile) = @_;
7618 if ($dir eq $relative_dir)
7620 &push_dist_common ($file);
7622 elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
7624 # If we are doing the topmost directory, and the file is in a
7625 # subdir which does not have a Makefile, then we distribute it
7627 &push_dist_common ($fullfile);
7632 # &require_file_internal ($IS_CONFIGURE, $LINE, $MYSTRICT, @FILES)
7633 # ----------------------------------------------------------------
7634 # Verify that the file must exist in the current directory.
7635 # $MYSTRICT is the strictness level at which this file becomes required.
7637 # Must set require_file_paths before calling this function.
7638 # require_file_paths is set to hold a single directory (the one in
7639 # which the first file was found) before return.
7640 sub require_file_internal
7642 my ($is_configure, $line, $mystrict, @files) = @_;
7644 foreach my $file (@files)
7652 my $dangling_sym = 0;
7653 foreach my $dir (@require_file_paths)
7655 $fullfile = $dir . "/" . $file;
7656 $errdir = $dir unless $errdir;
7658 # Use different name for "error filename". Otherwise on
7659 # an error the bad file will be reported as eg
7660 # `../../install-sh' when using the default
7662 $errfile = $errdir . '/' . $file;
7664 if (-l $fullfile && ! -f $fullfile)
7669 elsif (-f $fullfile)
7672 &maybe_push_required_file ($dir, $file, $fullfile);
7678 # `--force-missing' only has an effect if `--add-missing' is
7680 if ($found_it && (! $add_missing || ! $force_missing))
7682 # Prune the path list.
7683 @require_file_paths = $save_dir;
7687 # If we've already looked for it, we're done. You might
7688 # wonder why we don't do this before searching for the
7689 # file. If we do that, then something like
7690 # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
7694 next if defined $require_file_found{$file};
7695 $require_file_found{$file} = 1;
7698 if ($strictness >= $mystrict)
7700 if ($dangling_sym && $add_missing)
7708 # Only install missing files according to our desired
7710 my $message = "required file `$errfile' not found";
7715 # Maybe run libtoolize.
7716 my @syslist = ('libtoolize', '--automake');
7717 push @syslist, '--copy'
7720 && grep ($_ eq $file, @libtoolize_files)
7721 && system (@syslist))
7723 $message = "installing `$errfile'";
7725 $trailer = "; cannot run `libtoolize': $!";
7727 elsif (-f ("$libdir/$file"))
7729 # Install the missing file. Symlink if we
7730 # can, copy if we must. Note: delete the file
7731 # first, in case it is a dangling symlink.
7732 $message = "installing `$errfile'";
7733 # Windows Perl will hang if we try to delete a
7734 # file that doesn't exist.
7735 unlink ($errfile) if -f $errfile;
7736 if ($symlink_exists && ! $copy_missing)
7738 if (! symlink ("$libdir/$file", $errfile))
7741 $trailer = "; error while making link: $!";
7744 elsif (system ('cp', "$libdir/$file", $errfile))
7747 $trailer = "\n error while copying";
7751 &maybe_push_required_file (dirname ($errfile),
7754 # Prune the path list.
7755 @require_file_paths = &dirname ($errfile);
7758 # If --force-missing was specified, and we have
7759 # actually found the file, then do nothing.
7761 if $found_it && $force_missing;
7767 # FIXME: allow actual file to be specified.
7768 &am_conf_line_warning ($configure_ac, $line,
7769 "$message$trailer");
7773 &am_line_warning ($line, "$message$trailer");
7780 # FIXME: allow actual file to be specified.
7781 &am_conf_line_error ($configure_ac, $line,
7782 "$message$trailer");
7786 &am_line_error ($line, "$message$trailer");
7794 # Like require_file_with_line, but error messages refer to
7795 # configure.ac, not the current Makefile.am.
7796 sub require_file_with_conf_line
7798 @require_file_paths = $relative_dir;
7799 &require_file_internal (1, @_);
7802 sub require_file_with_line
7804 @require_file_paths = $relative_dir;
7805 &require_file_internal (0, @_);
7810 @require_file_paths = $relative_dir;
7811 &require_file_internal (0, '', @_);
7814 # Require an auxiliary file.
7815 # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
7816 sub require_aux_file_with_line
7818 my $from = shift; # 1 for configure.ac, 0 for Makefile.am
7820 @require_file_paths = @config_aux_path;
7821 &require_file_internal ($from, $line, @_);
7822 my $dir = $require_file_paths[0];
7823 # &require_file_internal pruned the file path to the
7824 # exact directory where the file is lying. Update
7825 # @config_aux_path to speed up future uses.
7826 @config_aux_path = @require_file_paths;
7827 # Avoid unsightly '/.'s.
7828 $config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
7831 # Assumes that the line number is in Makefile.am.
7832 sub require_conf_file_with_line
7834 &require_aux_file_with_line (0, @_);
7837 # File required from a Makefile.am. No line number available.
7838 sub require_conf_file
7840 &require_conf_file_with_line ('', @_);
7843 # Assumes that the line number is in configure.ac.
7844 sub require_conf_file_with_conf_line
7846 &require_aux_file_with_line (1, @_);
7849 # Require a file that is also required by Autoconf. No line number available.
7850 sub require_config_file
7852 &require_conf_file_with_conf_line ('', @_);
7855 ################################################################
7857 # &require_build_directory ($DIRECTORY)
7858 # ------------------------------------
7859 # Emit rules to create $DIRECTORY if needed, and return
7860 # the file that any target requiring this directory should be made
7862 sub require_build_directory ($)
7864 my $directory = shift;
7865 my $dirstamp = "$directory/.dirstamp";
7867 # Don't emit the rule twice.
7868 if (! defined $directory_map{$directory})
7870 $directory_map{$directory} = 1;
7872 # Directory must be removed by `make distclean'.
7873 $compile_clean_files{$dirstamp} = $DIST_CLEAN;
7875 $output_rules .= ("$dirstamp:\n"
7876 . "\t\@\$(mkinstalldirs) $directory\n"
7877 . "\t\@: > $dirstamp\n");
7883 # &require_build_directory_maybe ($FILE)
7884 # --------------------------------------
7885 # If $FILE lies in a subdirectory, emit a rule to create this
7886 # directory and return the file that $FILE should be made
7887 # dependent upon. Otherwise, just return the empty string.
7888 sub require_build_directory_maybe ($)
7891 my $directory = dirname ($file);
7893 if ($directory ne '.')
7895 return &require_build_directory ($directory);
7903 ################################################################
7905 # Push a list of files onto dist_common.
7906 sub push_dist_common
7908 &prog_error ("push_dist_common run after handle_dist")
7909 if $handle_dist_run;
7910 macro_define ('DIST_COMMON', 1, '+', '', join (' ', @_), '');
7917 $strictness_name = $_[0];
7918 if ($strictness_name eq 'gnu')
7922 elsif ($strictness_name eq 'gnits')
7924 $strictness = $GNITS;
7926 elsif ($strictness_name eq 'foreign')
7928 $strictness = $FOREIGN;
7932 die "$me: level `$strictness_name' not recognized\n";
7937 ################################################################
7939 # Ensure a file exists.
7944 my $touch = new IO::File (">> $file");
7948 # Glob something. Do this to avoid indentation screwups everywhere we
7949 # want to glob. Gross!
7956 # Remove one level of brackets and strip leading spaces,
7957 # as does m4 to function arguments.
7963 my @letters = split //;
7972 next if $depth == 1;
7977 next if $depth == 0;
7978 # don't count orphan right brackets
7979 $depth = 0 if $depth < 0;
7983 return join '', @result;
7986 ################################################################
7988 # am_print_error ($LEADER, @ARGS)
7989 # -------------------------------
7990 # Do the work of printing the error message. Join @ARGS with spaces,
7991 # then split at newlines and add $LEADER to each line. Uses `warn' to
7995 my ($leader, @args) = @_;
7996 my $text = join (' ', @args);
7997 @args = split ("\n", $text);
7998 $text = $leader . join ("\n" . $leader, @args) . "\n";
8002 # Print an error message and set exit status.
8005 am_print_error ("$me: ${am_file}.am: ", @_);
8009 # am_file_error ($FILE, @ARGS)
8010 # ----------------------------
8013 my ($file, @args) = @_;
8015 am_print_error ("$file: ", @args);
8021 my ($symbol, @args) = @_;
8023 if ($symbol && "$symbol" ne '-1')
8025 my $file = "${am_file}.am";
8027 if ($symbol =~ /^\d+$/)
8029 # SYMBOL is a line number, so just add the colon.
8030 $file .= ':' . $symbol;
8032 elsif (defined $var_line{$symbol})
8034 # SYMBOL is a variable defined in Makefile.am, so add the
8035 # line number we saved from there.
8036 $file .= ':' . $var_line{$symbol};
8038 elsif (defined $configure_vars{$symbol})
8040 # SYMBOL is a variable defined in configure.ac, so add the
8041 # appropriate line number.
8042 $file = $configure_vars{$symbol};
8046 # Couldn't find the line number.
8049 am_print_error ("$file: ", @args);
8058 # Like am_error, but while scanning configure.ac.
8061 # FIXME: can run in subdirs.
8062 am_print_error ("$me: $configure_ac: ", @_);
8066 # Error message with line number referring to configure.ac.
8067 sub am_conf_line_error
8069 my ($file, $line, @args) = @_;
8073 am_print_error ("$file: $line: ", @args);
8078 &am_conf_error (@args);
8082 # Warning message with line number referring to configure.ac.
8083 # Does not affect exit_status
8084 sub am_conf_line_warning
8086 my $saved_exit_status = $exit_status;
8087 my $sig = $SIG{'__WARN__'};
8088 $SIG{'__WARN__'} = 'DEFAULT';
8089 am_conf_line_error (@_);
8090 $exit_status = $saved_exit_status;
8091 $SIG{'__WARN__'} = $sig;
8094 # Like am_line_error, but doesn't affect exit status.
8097 my $saved_exit_status = $exit_status;
8098 my $sig = $SIG{'__WARN__'};
8099 $SIG{'__WARN__'} = 'DEFAULT';
8101 $exit_status = $saved_exit_status;
8102 $SIG{'__WARN__'} = $sig;
8105 # Tell user where our aclocal.m4 is, but only once.
8106 sub keyed_aclocal_warning
8109 warn "$me: macro `$key' can be generated by `aclocal'\n";
8112 # Print usage information.
8116 Usage: $0 [OPTION] ... [Makefile]...
8118 Generate Makefile.in for configure from Makefile.am.
8121 --help print this help, then exit
8122 --version print version number, then exit
8123 -v, --verbose verbosely list files processed
8124 -o, --output-dir=DIR put generated Makefile.in's into DIR
8125 --no-force only update Makefile.in's that are out of date
8127 Dependency tracking:
8128 -i, --ignore-deps disable dependency tracking code
8129 --include-deps enable dependency tracking code
8132 --cygnus assume program is part of Cygnus-style tree
8133 --foreign set strictness to foreign
8134 --gnits set strictness to gnits
8135 --gnu set strictness to gnu
8138 -a, --add-missing add missing standard files to package
8139 --libdir=DIR directory storing library files
8140 -c, --copy with -a, copy missing files (default is symlink)
8141 -f, --force-missing force update of standard files
8146 foreach my $iter (sort ((@common_files, @common_sometimes)))
8148 push (@lcomm, $iter) unless $iter eq $last;
8153 print "\nFiles which are automatically distributed, if found:\n";
8154 format USAGE_FORMAT =
8155 @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
8156 $four[0], $four[1], $four[2], $four[3]
8158 $~ = "USAGE_FORMAT";
8161 my $rows = int(@lcomm / $cols);
8162 my $rest = @lcomm % $cols;
8173 for (my $y = 0; $y < $rows; $y++)
8175 @four = ("", "", "", "");
8176 for (my $x = 0; $x < $cols; $x++)
8178 last if $y + 1 == $rows && $x == $rest;
8180 my $idx = (($x > $rest)
8181 ? ($rows * $rest + ($rows - 1) * ($x - $rest))
8185 $four[$x] = $lcomm[$idx];
8190 print "\nReport bugs to <bug-automake\@gnu.org>.\n";
8197 # Print version information
8201 automake (GNU $PACKAGE) $VERSION
8202 Written by Tom Tromey <tromey\@cygnus.com>.
8204 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
8205 Free Software Foundation, Inc.
8206 This is free software; see the source for copying conditions. There is NO
8207 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.