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- #!/usr/bin/perl -w
- # -*- perl -*-
- # automake. Generated from automake.in by configure.
-
- eval 'case $# in 0) exec /usr/bin/perl -S "$0";; *) exec /usr/bin/perl -S "$0" "$@";; esac'
- if 0;
-
- # automake - create Makefile.in from Makefile.am
- # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
- # Free Software Foundation, Inc.
-
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 2, or (at your option)
- # any later version.
-
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
-
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- # 02111-1307, USA.
-
- # Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
- # Perl reimplementation by Tom Tromey <tromey@redhat.com>.
-
- package Language;
-
- BEGIN
- {
- my $prefix = "/usr";
- my $perllibdir = $ENV{'perllibdir'} || "/usr/share/automake-1.6";
- unshift @INC, "$perllibdir";
- }
-
- use Automake::Struct;
- struct (# Short name of the language (c, f77...).
- 'name' => "\$",
- # Nice name of the language (C, Fortran 77...).
- 'Name' => "\$",
-
- # List of configure variables which must be defined.
- 'config_vars' => '@',
-
- 'ansi' => "\$",
- # `pure' is `1' or `'. A `pure' language is one where, if
- # all the files in a directory are of that language, then we
- # do not require the C compiler or any code to call it.
- 'pure' => "\$",
-
- 'autodep' => "\$",
-
- # Name of the compiling variable (COMPILE).
- 'compiler' => "\$",
- # Content of the compiling variable.
- 'compile' => "\$",
- # Flag to require compilation without linking (-c).
- 'compile_flag' => "\$",
- 'extensions' => '@',
- 'flags' => "\$",
- # Should the flag be defined as a configure variable.
- # Defaults to true. FIXME: this should go away once
- # we move to autoconf tracing.
- 'define_flag' => "\$",
-
- # The file to use when generating rules for this language.
- # The default is 'depend2'.
- 'rule_file' => "\$",
-
- # Name of the linking variable (LINK).
- 'linker' => "\$",
- # Content of the linking variable.
- 'link' => "\$",
-
- # Name of the linker variable (LD).
- 'lder' => "\$",
- # Content of the linker variable ($(CC)).
- 'ld' => "\$",
-
- # Flag to specify the output file (-o).
- 'output_flag' => "\$",
- '_finish' => "\$",
-
- # This is a subroutine which is called whenever we finally
- # determine the context in which a source file will be
- # compiled.
- '_target_hook' => "\$");
-
-
- sub finish ($)
- {
- my ($self) = @_;
- if (defined $self->_finish)
- {
- &{$self->_finish} ();
- }
- }
-
- sub target_hook ($$$$)
- {
- my ($self) = @_;
- if (defined $self->_target_hook)
- {
- &{$self->_target_hook} (@_);
- }
- }
-
- package Automake;
-
- use strict 'vars', 'subs';
- use Automake::General;
- use Automake::XFile;
- use File::Basename;
- use Carp;
-
- ## ----------- ##
- ## Constants. ##
- ## ----------- ##
-
- # Parameters set by configure. Not to be changed. NOTE: assign
- # VERSION as string so that eg version 0.30 will print correctly.
- my $VERSION = "1.6.3";
- my $PACKAGE = "automake";
- my $prefix = "/usr";
- my $libdir = "/usr/share/automake-1.6";
-
- # String constants.
- my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
- my $WHITE_PATTERN = '^\s*$';
- my $COMMENT_PATTERN = '^#';
- my $TARGET_PATTERN='[$a-zA-Z_.@][-.a-zA-Z0-9_(){}/$+@]*';
- # A rule has three parts: a list of targets, a list of dependencies,
- # and optionally actions.
- my $RULE_PATTERN =
- "^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
-
- my $SUFFIX_RULE_PATTERN = '^(\.[a-zA-Z0-9_(){}$+@]+)(\.[a-zA-Z0-9_(){}$+@]+)$';
- # Only recognize leading spaces, not leading tabs. If we recognize
- # leading tabs here then we need to make the reader smarter, because
- # otherwise it will think rules like `foo=bar; \' are errors.
- my $MACRO_PATTERN = '^[A-Za-z0-9_@]+$';
- my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)$';
- # This pattern recognizes a Gnits version id and sets $1 if the
- # release is an alpha release. We also allow a suffix which can be
- # used to extend the version number with a "fork" identifier.
- my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
- my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?$';
- my $ELSE_PATTERN = '^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?$';
- my $ENDIF_PATTERN = '^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?$';
- my $PATH_PATTERN='(\w|[/.-])+';
- # This will pass through anything not of the prescribed form.
- my $INCLUDE_PATTERN = ('^include\s+'
- . '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
- . '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
- . '|([^/\$]' . $PATH_PATTERN. '))\s*(#.*)?$');
-
- # Some regular expressions. One reason to put them here is that it
- # makes indentation work better in Emacs.
- my $AC_CONFIG_AUX_DIR_PATTERN = 'AC_CONFIG_AUX_DIR\(([^)]+)\)';
- my $AM_INIT_AUTOMAKE_PATTERN = 'AM_INIT_AUTOMAKE\([^,]*,([^,)]+)[,)]';
- my $AC_INIT_PATTERN = 'AC_INIT\([^,]*,([^,)]+)[,)]';
- my $AM_PACKAGE_VERSION_PATTERN = '^\s*\[?([^]\s]+)\]?\s*$';
-
- # This handles substitution references like ${foo:.a=.b}.
- my $SUBST_REF_PATTERN = "^([^:]*):([^=]*)=(.*)\$";
-
- # Note that there is no AC_PATH_TOOL. But we don't really care.
- my $AC_CHECK_PATTERN = 'AC_(CHECK|PATH)_(PROG|PROGS|TOOL)\(\[?(\w+)';
- my $AM_MISSING_PATTERN = 'AM_MISSING_PROG\(\[?(\w+)';
- # Just check for alphanumeric in AC_SUBST. If you do AC_SUBST(5),
- # then too bad.
- my $AC_SUBST_PATTERN = 'AC_SUBST\(\[?(\w+)';
- my $AM_CONDITIONAL_PATTERN = 'AM_CONDITIONAL\(\[?(\w+)';
- # Match `-d' as a command-line argument in a string.
- my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
- # Directories installed during 'install-exec' phase.
- my $EXEC_DIR_PATTERN =
- '^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)$'; #'
-
- # Constants to define the "strictness" level.
- use constant FOREIGN => 0;
- use constant GNU => 1;
- use constant GNITS => 2;
-
- # Values for AC_CANONICAL_*
- use constant AC_CANONICAL_HOST => 1;
- use constant AC_CANONICAL_SYSTEM => 2;
-
- # Values indicating when something should be cleaned. Right now we
- # only need to handle `mostly'- and `dist'-clean; add more as
- # required.
- use constant MOSTLY_CLEAN => 0;
- use constant DIST_CLEAN => 1;
-
- # Libtool files.
- my @libtool_files = qw(ltmain.sh config.guess config.sub);
- # ltconfig appears here for compatibility with old versions of libtool.
- my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
-
- # Commonly found files we look for and automatically include in
- # DISTFILES.
- my @common_files =
- (qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
- ChangeLog INSTALL NEWS README THANKS TODO acinclude.m4
- ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
- configure configure.ac configure.in depcomp elisp-comp
- install-sh libversion.in mdate-sh missing mkinstalldirs
- py-compile texinfo.tex ylwrap),
- @libtool_files, @libtool_sometimes);
-
- # Commonly used files we auto-include, but only sometimes.
- my @common_sometimes =
- qw(aclocal.m4 acconfig.h config.h.top config.h.bot stamp-vti);
-
- # Standard directories from the GNU Coding Standards, and additional
- # pkg* directories from Automake. Stored in a hash for fast member check.
- my %standard_prefix =
- map { $_ => 1 } (qw(bin data exec include info lib libexec lisp
- localstate man man1 man2 man3 man4 man5 man6
- man7 man8 man9 oldinclude pkgdatadir
- pkgincludedir pkglibdir sbin sharedstate
- sysconf));
-
- # Copyright on generated Makefile.ins.
- my $gen_copyright = "\
- # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
- # Free Software Foundation, Inc.
- # This Makefile.in is free software; the Free Software Foundation
- # gives unlimited permission to copy and/or distribute it,
- # with or without modifications, as long as this notice is preserved.
-
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
- # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
- # PARTICULAR PURPOSE.
- ";
-
- # These constants are returned by lang_*_rewrite functions.
- # LANG_SUBDIR means that the resulting object file should be in a
- # subdir if the source file is. In this case the file name cannot
- # have `..' components.
- my $LANG_IGNORE = 0;
- my $LANG_PROCESS = 1;
- my $LANG_SUBDIR = 2;
-
- # These are used when keeping track of whether an object can be built
- # by two different paths.
- my $COMPILE_LIBTOOL = 1;
- my $COMPILE_ORDINARY = 2;
-
- # Map from obsolete macros to hints for new macros.
- # If you change this, change the corresponding list in aclocal.in.
- # FIXME: should just put this into a single file.
- my %obsolete_macros =
- (
- 'AC_FEATURE_CTYPE' => "use `AC_HEADER_STDC'",
- 'AC_FEATURE_ERRNO' => "add `strerror' to `AC_REPLACE_FUNCS(...)'",
- 'AC_FEATURE_EXIT' => '',
- 'AC_SYSTEM_HEADER' => '',
-
- # Note that we do not handle this one, because it is still run
- # from AM_CONFIG_HEADER. So we deal with it specially in
- # &scan_autoconf_files.
- # 'AC_CONFIG_HEADER' => "use `AM_CONFIG_HEADER'",
-
- 'fp_C_PROTOTYPES' => "use `AM_C_PROTOTYPES'",
- 'fp_PROG_CC_STDC' => "use `AM_PROG_CC_STDC'",
- 'fp_PROG_INSTALL' => "use `AC_PROG_INSTALL'",
- 'fp_WITH_DMALLOC' => "use `AM_WITH_DMALLOC'",
- 'fp_WITH_REGEX' => "use `AM_WITH_REGEX'",
- 'gm_PROG_LIBTOOL' => "use `AM_PROG_LIBTOOL'",
- 'jm_MAINTAINER_MODE' => "use `AM_MAINTAINER_MODE'",
- 'md_TYPE_PTRDIFF_T' => "add `ptrdiff_t' to `AC_CHECK_TYPES(...)'",
- 'ud_PATH_LISPDIR' => "use `AM_PATH_LISPDIR'",
- 'ud_GNU_GETTEXT' => "use `AM_GNU_GETTEXT'",
-
- # Now part of autoconf proper, under a different name.
- 'fp_FUNC_FNMATCH' => "use `AC_FUNC_FNMATCH'",
- 'AM_SANITY_CHECK_CC' => "automatically done by `AC_PROG_CC'",
- 'AM_PROG_INSTALL' => "use `AC_PROG_INSTALL'",
- 'AM_EXEEXT' => "automatically done by `AC_PROG_(CC|CXX|F77)'",
- 'AM_CYGWIN32' => "use `AC_CYGWIN'",
- 'AM_MINGW32' => "use `AC_MINGW32'",
- 'AM_FUNC_MKTIME' => "use `AC_FUNC_MKTIME'",
- );
-
- # Regexp to match the above macros.
- my $obsolete_rx = '\b(' . join ('|', keys %obsolete_macros) . ')\b';
-
-
-
- ## ---------------------------------- ##
- ## Variables related to the options. ##
- ## ---------------------------------- ##
-
- # TRUE if we should always generate Makefile.in.
- my $force_generation = 1;
-
- # Strictness level as set on command line.
- my $default_strictness = GNU;
-
- # Name of strictness level, as set on command line.
- my $default_strictness_name = 'gnu';
-
- # This is TRUE if automatic dependency generation code should be
- # included in generated Makefile.in.
- my $cmdline_use_dependencies = 1;
-
- # This holds our (eventual) exit status. We don't actually exit until
- # we have processed all input files.
- my $exit_status = 0;
-
- # From the Perl manual.
- my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
-
- # TRUE if missing standard files should be installed.
- my $add_missing = 0;
-
- # TRUE if we should copy missing files; otherwise symlink if possible.
- my $copy_missing = 0;
-
- # TRUE if we should always update files that we know about.
- my $force_missing = 0;
-
-
- ## ---------------------------------------- ##
- ## Variables filled during files scanning. ##
- ## ---------------------------------------- ##
-
- # Name of the top autoconf input: `configure.ac' or `configure.in'.
- my $configure_ac = '';
-
- # Files found by scanning configure.ac for LIBOBJS.
- my %libsources = ();
-
- # True if AM_C_PROTOTYPES appears in configure.ac.
- my $am_c_prototypes = 0;
-
- # Names used in AC_CONFIG_HEADER call.
- my @config_headers = ();
- # Where AC_CONFIG_HEADER appears.
- my $config_header_location;
-
- # Directory where output files go. Actually, output files are
- # relative to this directory.
- my $output_directory;
-
- # List of Makefile.am's to process, and their corresponding outputs.
- my @input_files = ();
- my %output_files = ();
-
- # Complete list of Makefile.am's that exist.
- my @configure_input_files = ();
-
- # List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
- # and their outputs.
- my @other_input_files = ();
- # Where the last AC_CONFIG_FILES/AC_OUTPUT appears.
- my $ac_config_files_location;
-
- # List of directories to search for configure-required files. This
- # can be set by AC_CONFIG_AUX_DIR.
- my @config_aux_path = qw(. .. ../..);
- my $config_aux_dir = '';
- my $config_aux_dir_set_in_configure_in = 0;
-
- # Whether AM_GNU_GETTEXT has been seen in configure.ac.
- my $seen_gettext = 0;
- # Whether AM_GNU_GETTEXT([external]) is used.
- my $seen_gettext_external = 0;
- # Where AM_GNU_GETTEXT appears.
- my $ac_gettext_location;
-
- # TRUE if AC_PROG_LEX or AM_PROG_LEX were seen.
- my $seen_prog_lex = 0;
-
- # TRUE if we've seen AC_CANONICAL_(HOST|SYSTEM).
- my $seen_canonical = 0;
- my $canonical_location;
-
- # Where AC_PROG_LIBTOOL appears.
- my $seen_libtool;
-
- # Where AM_MAINTAINER_MODE appears.
- my $seen_maint_mode;
-
- # Actual version we've seen.
- my $package_version = '';
-
- # Where version is defined.
- my $package_version_location;
-
- # Where AM_PATH_LISPDIR appears.
- my $am_lispdir_location;
-
- # Where AM_PATH_PYTHON appears.
- my $pythondir_location;
-
- # TRUE if we've seen AC_ENABLE_MULTILIB.
- my $seen_multilib = 0;
-
- # TRUE if we've seen AM_PROG_CC_C_O
- my $seen_cc_c_o = 0;
-
- # Where AM_INIT_AUTOMAKE is called;
- my $seen_init_automake = 0;
-
- # TRUE if we've seen AM_AUTOMAKE_VERSION.
- my $seen_automake_version = 0;
-
- # Hash table of discovered configure substitutions. Keys are names,
- # values are `FILE:LINE' strings which are used by error message
- # generation.
- my %configure_vars = ();
-
- # This is used to keep track of which variable definitions we are
- # scanning. It is only used in certain limited ways, but it has to be
- # global. It is declared just for documentation purposes.
- my %vars_scanned = ();
-
- # TRUE if --cygnus seen.
- my $cygnus_mode = 0;
-
- # Hash table of AM_CONDITIONAL variables seen in configure.
- my %configure_cond = ();
-
- # This maps extensions onto language names.
- my %extension_map = ();
-
- # List of the DIST_COMMON files we discovered while reading
- # configure.in
- my $configure_dist_common = '';
-
- # This maps languages names onto objects.
- my %languages = ();
-
- # List of targets we must always output.
- # FIXME: Complete, and remove falsely required targets.
- my %required_targets =
- (
- 'all' => 1,
- 'dvi' => 1,
- 'info' => 1,
- 'install-info' => 1,
- 'install' => 1,
- 'install-data' => 1,
- 'install-exec' => 1,
- 'uninstall' => 1,
-
- # FIXME: Not required, temporary hacks.
- # Well, actually they are sort of required: the -recursive
- # targets will run them anyway...
- 'dvi-am' => 1,
- 'info-am' => 1,
- 'install-data-am' => 1,
- 'install-exec-am' => 1,
- 'installcheck-am' => 1,
- 'uninstall-am' => 1,
-
- 'install-man' => 1,
- );
-
- # This is set to 1 when Automake needs to be run again.
- # (For instance, this happens when an auxiliary file such as
- # depcomp is added after the toplevel Makefile.in -- which
- # should distribute depcomp -- has been generated.)
- my $automake_needs_to_reprocess_all_files = 0;
-
- # Options set via AM_INIT_AUTOMAKE.
- my $global_options = '';
-
- # If a file name appears as a key in this hash, then it has already
- # been checked for. This variable is local to the "require file"
- # functions.
- my %require_file_found = ();
-
-
- ################################################################
-
- ## ------------------------------------------ ##
- ## Variables reset by &initialize_per_input. ##
- ## ------------------------------------------ ##
-
- # Basename and relative dir of the input file.
- my $am_file_name;
- my $am_relative_dir;
-
- # Same but wrt Makefile.in.
- my $in_file_name;
- my $relative_dir;
-
- # These two variables are used when generating each Makefile.in.
- # They hold the Makefile.in until it is ready to be printed.
- my $output_rules;
- my $output_vars;
- my $output_trailer;
- my $output_all;
- my $output_header;
-
- # Suffixes found during a run.
- my @suffixes;
-
- # Handling the variables.
- #
- # For a $VAR:
- # - $var_value{$VAR}{$COND} is its value associated to $COND,
- # - $var_location{$VAR} is where it was defined,
- # - $var_comment{$VAR} are the comments associated to it.
- # - $var_type{$VAR} is how it has been defined (`', `+', or `:'),
- # - $var_is_am{$VAR} is true if the variable is owned by Automake.
- my %var_value;
- my %var_location;
- my %var_comment;
- my %var_type;
- my %var_is_am;
-
- # This holds a 1 if a particular variable was examined.
- my %content_seen;
-
- # This holds the names which are targets. These also appear in
- # %contents.
- my %targets;
-
- # Same as %VAR_VALUE, but for targets.
- my %target_conditional;
-
- # This is the conditional stack.
- my @cond_stack;
-
- # This holds the set of included files.
- my @include_stack;
-
- # This holds a list of directories which we must create at `dist'
- # time. This is used in some strange scenarios involving weird
- # AC_OUTPUT commands.
- my %dist_dirs;
-
- # List of dependencies for the obvious targets.
- my @all;
- my @check;
- my @check_tests;
-
- # Holds the dependencies of targets which dependencies are factored.
- # Typically, `.PHONY' will appear in plenty of *.am files, but must
- # be output once. Arguably all pure dependencies could be subject
- # to this factorization, but it is not unpleasant to have paragraphs
- # in Makefile: keeping related stuff altogether.
- my %dependencies;
-
- # Holds the factored actions. Tied to %DEPENDENCIES, i.e., filled
- # only when keys exists in %DEPENDENCIES.
- my %actions;
-
- # A list of files deleted by `maintainer-clean'.
- my @maintainer_clean_files;
-
- # Keys in this hash table are object files or other files in
- # subdirectories which need to be removed. This only holds files
- # which are created by compilations. The value in the hash indicates
- # when the file should be removed.
- my %compile_clean_files;
-
- # Keys in this hash table are directories where we expect to build a
- # libtool object. We use this information to decide what directories
- # to delete.
- my %libtool_clean_directories;
-
- # Value of `$(SOURCES)', used by tags.am.
- my @sources;
- # Sources which go in the distribution.
- my @dist_sources;
-
- # This hash maps object file names onto their corresponding source
- # file names. This is used to ensure that each object is created
- # by a single source file.
- my %object_map;
-
- # This hash maps object file names onto an integer value representing
- # whether this object has been built via ordinary compilation or
- # libtool compilation (the COMPILE_* constants).
- my %object_compilation_map;
-
-
- # This keeps track of the directories for which we've already
- # created `.dirstamp' code.
- my %directory_map;
-
- # All .P files.
- my %dep_files;
-
- # Strictness levels.
- my $strictness;
- my $strictness_name;
-
- # Options from AUTOMAKE_OPTIONS.
- my %options;
-
- # Whether or not dependencies are handled. Can be further changed
- # in handle_options.
- my $use_dependencies;
-
- # This is a list of all targets to run during "make dist".
- my @dist_targets;
-
- # Keys in this hash are the basenames of files which must depend on
- # ansi2knr. Values are either the empty string, or the directory in
- # which the ANSI source file appears; the directory must have a
- # trailing `/'.
- my %de_ansi_files;
-
- # This maps the source extension of a suffix rule to its
- # corresponding output extension.
- # FIXME: because this hash maps one input extension to one output
- # extension, Automake cannot handle two suffix rules with the same
- # input extension.
- my %suffix_rules;
-
- # This is the name of the redirect `all' target to use.
- my $all_target;
-
- # This keeps track of which extensions we've seen (that we care
- # about).
- my %extension_seen;
-
- # This is random scratch space for the language finish functions.
- # Don't randomly overwrite it; examine other uses of keys first.
- my %language_scratch;
-
- # We keep track of which objects need special (per-executable)
- # handling on a per-language basis.
- my %lang_specific_files;
-
- # This is set when `handle_dist' has finished. Once this happens,
- # we should no longer push on dist_common.
- my $handle_dist_run;
-
- # Used to store a set of linkers needed to generate the sources currently
- # under consideration.
- my %linkers_used;
-
- # True if we need `LINK' defined. This is a hack.
- my $need_link;
-
- # This is the list of such variables to output.
- # FIXME: Might be useless actually.
- my @var_list;
-
- # Was get_object_extension run?
- # FIXME: This is a hack. a better switch should be found.
- my $get_object_extension_was_run;
-
- # Contains a stack of `from' parts of variable substitutions currently in
- # force.
- my @substfroms;
-
- # Contains a stack of `to' parts of variable substitutions currently in
- # force.
- my @substtos;
-
- # This keeps track of all variables defined by subobjname.
- # The value stored is the variable names.
- # The key has the form "(COND1)VAL1(COND2)VAL2..." where VAL1 and VAL2
- # are the values of the variable for condition COND1 and COND2.
- my %subobjvar = ();
-
- ## --------------------------------- ##
- ## Forward subroutine declarations. ##
- ## --------------------------------- ##
- sub register_language (%);
- sub file_contents_internal ($$%);
- sub define_objects_from_sources ($$$$$$$);
-
-
- # &initialize_per_input ()
- # ------------------------
- # (Re)-Initialize per-Makefile.am variables.
- sub initialize_per_input ()
- {
- $am_file_name = '';
- $am_relative_dir = '';
-
- $in_file_name = '';
- $relative_dir = '';
-
- $output_rules = '';
- $output_vars = '';
- $output_trailer = '';
- $output_all = '';
- $output_header = '';
-
- @suffixes = ();
-
- %var_value = ();
- %var_location = ();
- %var_comment = ();
- %var_type = ();
- %var_is_am = ();
-
- %content_seen = ();
-
- %targets = ();
-
- %target_conditional = ();
-
- @cond_stack = ();
-
- @include_stack = ();
-
- %dist_dirs = ();
-
- @all = ();
- @check = ();
- @check_tests = ();
-
- %dependencies =
- (
- # Texinfoing.
- 'dvi' => [],
- 'dvi-am' => [],
- 'info' => [],
- 'info-am' => [],
-
- # Installing/uninstalling.
- 'install-data-am' => [],
- 'install-exec-am' => [],
- 'uninstall-am' => [],
-
- 'install-man' => [],
- 'uninstall-man' => [],
-
- 'install-info' => [],
- 'install-info-am' => [],
- 'uninstall-info' => [],
-
- 'installcheck-am' => [],
-
- # Cleaning.
- 'clean-am' => [],
- 'mostlyclean-am' => [],
- 'maintainer-clean-am' => [],
- 'distclean-am' => [],
- 'clean' => [],
- 'mostlyclean' => [],
- 'maintainer-clean' => [],
- 'distclean' => [],
-
- # Tarballing.
- 'dist-all' => [],
-
- # Phoning.
- '.PHONY' => []
- );
- %actions = ();
-
- @maintainer_clean_files = ();
-
- @sources = ();
- @dist_sources = ();
-
- %object_map = ();
- %object_compilation_map = ();
-
- %directory_map = ();
-
- %dep_files = ();
-
- $strictness = $default_strictness;
- $strictness_name = $default_strictness_name;
-
- %options = ();
-
- $use_dependencies = $cmdline_use_dependencies;
-
- @dist_targets = ();
-
- %de_ansi_files = ();
-
- %suffix_rules = ();
-
- $all_target = '';
-
- %extension_seen = ();
-
- %language_scratch = ();
-
- %lang_specific_files = ();
-
- $handle_dist_run = 0;
-
- $need_link = 0;
-
- @var_list = ();
-
- $get_object_extension_was_run = 0;
-
- %compile_clean_files = ();
-
- # We always include `.'. This isn't strictly correct.
- %libtool_clean_directories = ('.' => 1);
-
- %subobjvar = ();
- }
-
-
- ################################################################
-
- # Initialize our list of languages that are internally supported.
-
- # C.
- register_language ('name' => 'c',
- 'Name' => 'C',
- 'config_vars' => ['CC'],
- 'ansi' => 1,
- 'autodep' => '',
- 'flags' => 'CFLAGS',
- 'compiler' => 'COMPILE',
- 'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
- 'lder' => 'CCLD',
- 'ld' => '$(CC)',
- 'linker' => 'LINK',
- 'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
- 'compile_flag' => '-c',
- 'extensions' => ['.c'],
- '_finish' => \&lang_c_finish);
-
- # C++.
- register_language ('name' => 'cxx',
- 'Name' => 'C++',
- 'config_vars' => ['CXX'],
- 'linker' => 'CXXLINK',
- 'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
- 'autodep' => 'CXX',
- 'flags' => 'CXXFLAGS',
- 'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
- 'compiler' => 'CXXCOMPILE',
- 'compile_flag' => '-c',
- 'output_flag' => '-o',
- 'lder' => 'CXXLD',
- 'ld' => '$(CXX)',
- 'pure' => 1,
- 'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
-
- # Objective C.
- register_language ('name' => 'objc',
- 'Name' => 'Objective C',
- 'config_vars' => ['OBJC'],
- 'linker' => 'OBJCLINK',,
- 'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
- 'autodep' => 'OBJC',
- 'flags' => 'OBJCFLAGS',
- 'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
- 'compiler' => 'OBJCCOMPILE',
- 'compile_flag' => '-c',
- 'output_flag' => '-o',
- 'lder' => 'OBJCLD',
- 'ld' => '$(OBJC)',
- 'pure' => 1,
- 'extensions' => ['.m']);
-
- # Headers.
- register_language ('name' => 'header',
- 'Name' => 'Header',
- 'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
- '.hpp', '.inc'],
- # Nothing to do.
- '_finish' => sub { });
-
- # Yacc (C & C++).
- register_language ('name' => 'yacc',
- 'Name' => 'Yacc',
- 'config_vars' => ['YACC'],
- 'flags' => 'YFLAGS',
- 'define_flag' => 0,
- 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
- 'compiler' => 'YACCCOMPILE',
- 'extensions' => ['.y'],
- 'rule_file' => 'yacc',
- '_finish' => \&lang_yacc_finish,
- '_target_hook' => \&lang_yacc_target_hook);
- register_language ('name' => 'yaccxx',
- 'Name' => 'Yacc (C++)',
- 'config_vars' => ['YACC'],
- 'rule_file' => 'yacc',
- 'flags' => 'YFLAGS',
- 'define_flag' => 0,
- 'compiler' => 'YACCCOMPILE',
- 'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
- 'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
- '_finish' => \&lang_yacc_finish,
- '_target_hook' => \&lang_yacc_target_hook);
-
- # Lex (C & C++).
- register_language ('name' => 'lex',
- 'Name' => 'Lex',
- 'config_vars' => ['LEX'],
- 'rule_file' => 'lex',
- 'flags' => 'LFLAGS',
- 'define_flag' => 0,
- 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
- 'compiler' => 'LEXCOMPILE',
- 'extensions' => ['.l'],
- '_finish' => \&lang_lex_finish,
- '_target_hook' => \&lang_lex_target_hook);
- register_language ('name' => 'lexxx',
- 'Name' => 'Lex (C++)',
- 'config_vars' => ['LEX'],
- 'rule_file' => 'lex',
- 'flags' => 'LFLAGS',
- 'define_flag' => 0,
- 'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
- 'compiler' => 'LEXCOMPILE',
- 'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
- '_finish' => \&lang_lex_finish,
- '_target_hook' => \&lang_lex_target_hook);
-
- # Assembler.
- register_language ('name' => 'asm',
- 'Name' => 'Assembler',
- 'config_vars' => ['CCAS', 'CCASFLAGS'],
-
- 'flags' => 'CCASFLAGS',
- # Users can set AM_ASFLAGS to includes DEFS, INCLUDES,
- # or anything else required. They can also set AS.
- 'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
- 'compiler' => 'CCASCOMPILE',
- 'compile_flag' => '-c',
- 'extensions' => ['.s', '.S'],
-
- # With assembly we still use the C linker.
- '_finish' => \&lang_c_finish);
-
- # Fortran 77
- register_language ('name' => 'f77',
- 'Name' => 'Fortran 77',
- 'linker' => 'F77LINK',
- 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
- 'flags' => 'FFLAGS',
- 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
- 'compiler' => 'F77COMPILE',
- 'compile_flag' => '-c',
- 'output_flag' => '-o',
- 'lder' => 'F77LD',
- 'ld' => '$(F77)',
- 'pure' => 1,
- 'extensions' => ['.f', '.for', '.f90']);
-
- # Preprocessed Fortran 77
- #
- # The current support for preprocessing Fortran 77 just involves
- # passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
- # $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
- # this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
- # for `make' Version 3.76 Beta' (specifically, from info file
- # `(make)Catalogue of Rules').
- #
- # A better approach would be to write an Autoconf test
- # (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
- # Fortran 77 compilers know how to do preprocessing. The Autoconf
- # macro AC_PROG_FPP should test the Fortran 77 compiler first for
- # preprocessing capabilities, and then fall back on cpp (if cpp were
- # available).
- register_language ('name' => 'ppf77',
- 'Name' => 'Preprocessed Fortran 77',
- 'config_vars' => ['F77'],
- 'linker' => 'F77LINK',
- 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
- 'lder' => 'F77LD',
- 'ld' => '$(F77)',
- 'flags' => 'FFLAGS',
- 'compiler' => 'PPF77COMPILE',
- 'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
- 'compile_flag' => '-c',
- 'output_flag' => '-o',
- 'pure' => 1,
- 'extensions' => ['.F']);
-
- # Ratfor.
- register_language ('name' => 'ratfor',
- 'Name' => 'Ratfor',
- 'config_vars' => ['F77'],
- 'linker' => 'F77LINK',
- 'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
- 'lder' => 'F77LD',
- 'ld' => '$(F77)',
- 'flags' => 'RFLAGS',
- # FIXME also FFLAGS.
- 'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
- 'compiler' => 'RCOMPILE',
- 'compile_flag' => '-c',
- 'output_flag' => '-o',
- 'pure' => 1,
- 'extensions' => ['.r']);
-
- # Java via gcj.
- register_language ('name' => 'java',
- 'Name' => 'Java',
- 'config_vars' => ['GCJ'],
- 'linker' => 'GCJLINK',
- 'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
- 'autodep' => 'GCJ',
- 'flags' => 'GCJFLAGS',
- 'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
- 'compiler' => 'GCJCOMPILE',
- 'compile_flag' => '-c',
- 'output_flag' => '-o',
- 'lder' => 'GCJLD',
- 'ld' => '$(GCJ)',
- 'pure' => 1,
- 'extensions' => ['.java', '.class', '.zip', '.jar']);
-
- ################################################################
-
- # Parse command line.
- &parse_arguments;
-
- # Do configure.ac scan only once.
- &scan_autoconf_files;
-
- die "$me: no `Makefile.am' found or specified\n"
- if ! @input_files;
-
- my $automake_has_run = 0;
-
- do
- {
- if ($automake_has_run)
- {
- verbose "processing Makefiles another time to fix them up.\n";
- &prog_error ("running more than two times should never be needed.")
- if $automake_has_run >= 2;
- }
- $automake_needs_to_reprocess_all_files = 0;
-
- # Now do all the work on each file.
- # This guy must be local otherwise it's private to the loop.
- use vars '$am_file';
- local $am_file;
- foreach $am_file (@input_files)
- {
- if (! -f ($am_file . '.am'))
- {
- &am_error ("`" . $am_file . ".am' does not exist");
- }
- else
- {
- &generate_makefile ($output_files{$am_file}, $am_file);
- }
- }
- ++$automake_has_run;
- }
- while ($automake_needs_to_reprocess_all_files);
-
- exit $exit_status;
-
- ################################################################
-
- # prog_error (@PRINT-ME)
- # ----------------------
- # Signal a programming error, display PRINT-ME, and exit 1.
- sub prog_error (@)
- {
- print STDERR "$me: programming error: @_\n";
- exit 1;
- }
-
-
- # subst ($TEXT)
- # -------------
- # Return a configure-style substitution using the indicated text.
- # We do this to avoid having the substitutions directly in automake.in;
- # when we do that they are sometimes removed and this causes confusion
- # and bugs.
- sub subst ($)
- {
- my ($text) = @_;
- return '@' . $text . '@';
- }
-
- ################################################################
-
-
- # $BACKPATH
- # &backname ($REL-DIR)
- # --------------------
- # If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
- # For instance `src/foo' => `../..'.
- # Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
- sub backname ($)
- {
- my ($file) = @_;
- my @res;
- foreach (split (/\//, $file))
- {
- next if $_ eq '.' || $_ eq '';
- if ($_ eq '..')
- {
- pop @res;
- }
- else
- {
- push (@res, '..');
- }
- }
- return join ('/', @res) || '.';
- }
-
- ################################################################
-
- # Pattern that matches all know input extensions (i.e. extensions used
- # by the languages supported by Automake). Using this pattern
- # (instead of `\..*$') to match extensions allows Automake to support
- # dot-less extensions.
- my $KNOWN_EXTENSIONS_PATTERN = "";
- my @known_extensions_list = ();
-
- # accept_extensions (@EXTS)
- # -------------------------
- # Update $KNOWN_EXTENSIONS_PATTERN to recognize the extensions
- # listed @EXTS. Extensions should contain a dot if needed.
- sub accept_extensions (@)
- {
- push @known_extensions_list, @_;
- $KNOWN_EXTENSIONS_PATTERN =
- '(?:' . join ('|', map (quotemeta, @known_extensions_list)) . ')';
- }
-
- # var_SUFFIXES_trigger ($TYPE, $VALUE)
- # ------------------------------------
- # This is called automagically by define_macro() when SUFFIXES
- # is defined ($TYPE eq '') or appended ($TYPE eq '+').
- # The work here needs to be performed as a side-effect of the
- # define_macro() call because SUFFIXES definitions impact
- # on $KNOWN_EXTENSIONS_PATTERN, and $KNOWN_EXTENSIONS_PATTERN
- # are used when parsing the input am file.
- sub var_SUFFIXES_trigger ($$)
- {
- my ($type, $value) = @_;
- accept_extensions (split (' ', $value));
- }
-
- ################################################################
-
- # Parse command line.
- sub parse_arguments ()
- {
- # Start off as gnu.
- &set_strictness ('gnu');
-
- use Getopt::Long;
- Getopt::Long::config ("bundling", "pass_through");
- Getopt::Long::GetOptions
- (
- 'version' => \&version,
- 'help' => \&usage,
- 'libdir:s' => \$libdir,
- 'gnu' => sub { &set_strictness ('gnu'); },
- 'gnits' => sub { &set_strictness ('gnits'); },
- 'cygnus' => \$cygnus_mode,
- 'foreign' => sub { &set_strictness ('foreign'); },
- 'include-deps' => sub { $cmdline_use_dependencies = 1; },
- 'i|ignore-deps' => sub { $cmdline_use_dependencies = 0; },
- 'no-force' => sub { $force_generation = 0; },
- 'f|force-missing'=> \$force_missing,
- 'o|output-dir:s' => \$output_directory,
- 'a|add-missing' => \$add_missing,
- 'c|copy' => \$copy_missing,
- 'v|verbose' => \$verbose,
- 'Werror' => sub { $SIG{"__WARN__"} = sub { die $_[0] } },
- 'Wno-error' => sub { $SIG{"__WARN__"} = 'DEFAULT' }
- )
- or exit 1;
-
- if (defined $output_directory)
- {
- print STDERR "$0: `--output-dir' is deprecated\n";
- }
- else
- {
- # In the next release we'll remove this entirely.
- $output_directory = '.';
- }
-
- foreach my $arg (@ARGV)
- {
- if ($arg =~ /^-./)
- {
- print STDERR "$0: unrecognized option `$arg'\n";
- print STDERR "Try `$0 --help' for more information.\n";
- exit (1);
- }
-
- # Handle $local:$input syntax. Note that we only examine the
- # first ":" file to see if it is automake input; the rest are
- # just taken verbatim. We still keep all the files around for
- # dependency checking, however.
- my ($local, $input, @rest) = split (/:/, $arg);
- if (! $input)
- {
- $input = $local;
- }
- else
- {
- # Strip .in; later on .am is tacked on. That is how the
- # automake input file is found. Maybe not the best way, but
- # it is easy to explain.
- $input =~ s/\.in$//
- or die "$me: invalid input file name `$arg'\n.";
- }
- push (@input_files, $input);
- $output_files{$input} = join (':', ($local, @rest));
- }
-
- # Take global strictness from whatever we currently have set.
- $default_strictness = $strictness;
- $default_strictness_name = $strictness_name;
- }
-
- ################################################################
-
- # Generate a Makefile.in given the name of the corresponding Makefile and
- # the name of the file output by config.status.
- sub generate_makefile
- {
- my ($output, $makefile) = @_;
-
- # Reset all the Makefile.am related variables.
- &initialize_per_input;
-
- # Name of input file ("Makefile.am") and output file
- # ("Makefile.in"). These have no directory components.
- $am_file_name = basename ($makefile) . '.am';
- $in_file_name = basename ($makefile) . '.in';
-
- # $OUTPUT is encoded. If it contains a ":" then the first element
- # is the real output file, and all remaining elements are input
- # files. We don't scan or otherwise deal with these input file,
- # other than to mark them as dependencies. See
- # &scan_autoconf_files for details.
- my (@secondary_inputs);
- ($output, @secondary_inputs) = split (/:/, $output);
-
- $relative_dir = dirname ($output);
- $am_relative_dir = dirname ($makefile);
-
- &read_main_am_file ($makefile . '.am');
- if (&handle_options)
- {
- # Fatal error. Just return, so we can continue with next file.
- return;
- }
-
- # There are a few install-related variables that you should not define.
- foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
- {
- if (variable_defined ($var) && !$var_is_am{$var})
- {
- macro_error ($var, "`$var' should not be defined");
- }
- }
-
- # At the toplevel directory, we might need config.guess, config.sub
- # or libtool scripts (ltconfig and ltmain.sh).
- if ($relative_dir eq '.')
- {
- # AC_CANONICAL_HOST and AC_CANONICAL_SYSTEM need config.guess and
- # config.sub.
- require_conf_file ($canonical_location, FOREIGN,
- 'config.guess', 'config.sub')
- if $seen_canonical;
- }
-
- # We still need Makefile.in here, because sometimes the `dist'
- # target doesn't re-run automake.
- if ($am_relative_dir eq $relative_dir)
- {
- # Only distribute the files if they are in the same subdir as
- # the generated makefile.
- &push_dist_common ($in_file_name, $am_file_name);
- }
-
- push (@sources, '$(SOURCES)')
- if variable_defined ('SOURCES');
-
- # Must do this after reading .am file. See read_main_am_file to
- # understand weird tricks we play there with variables.
- &define_variable ('subdir', $relative_dir);
-
- # Check first, because we might modify some state.
- &check_cygnus;
- &check_gnu_standards;
- &check_gnits_standards;
-
- &handle_configure ($output, $makefile, @secondary_inputs);
- &handle_gettext;
- &handle_libraries;
- &handle_ltlibraries;
- &handle_programs;
- &handle_scripts;
-
- # This must run first so that the ANSI2KNR definition is generated
- # before it is used by the _.c rules. We have to do this because
- # a variable which is used in a dependency must be defined before
- # the target, or else make won't properly see it.
- &handle_compile;
- # This must be run after all the sources are scanned.
- &handle_languages;
-
- # We have to run this after dealing with all the programs.
- &handle_libtool;
-
- # Re-init SOURCES. FIXME: other code shouldn't depend on this
- # (but currently does).
- macro_define ('SOURCES', 1, '', 'TRUE', "@sources", 'internal');
- define_pretty_variable ('DIST_SOURCES', '', @dist_sources);
-
- &handle_multilib;
- &handle_texinfo;
- &handle_emacs_lisp;
- &handle_python;
- &handle_java;
- &handle_man_pages;
- &handle_data;
- &handle_headers;
- &handle_subdirs;
- &handle_tags;
- &handle_minor_options;
- &handle_tests;
-
- # This must come after most other rules.
- &handle_dist ($makefile);
-
- &handle_footer;
- &do_check_merge_target;
- &handle_all ($output);
-
- # FIXME: Gross!
- if (variable_defined ('lib_LTLIBRARIES') &&
- variable_defined ('bin_PROGRAMS'))
- {
- $output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
- }
-
- &handle_installdirs;
- &handle_clean;
- &handle_factored_dependencies;
-
- check_typos ();
-
- if (! -d ($output_directory . '/' . $am_relative_dir))
- {
- mkdir ($output_directory . '/' . $am_relative_dir, 0755);
- }
-
- my ($out_file) = $output_directory . '/' . $makefile . ".in";
- if (! $force_generation && -e $out_file)
- {
- my ($am_time) = (stat ($makefile . '.am'))[9];
- my ($in_time) = (stat ($out_file))[9];
- # FIXME: should cache these times.
- my ($conf_time) = (stat ($configure_ac))[9];
- # FIXME: how to do unsigned comparison?
- if ($am_time < $in_time || $am_time < $conf_time)
- {
- # No need to update.
- return;
- }
- if (-f 'aclocal.m4')
- {
- my ($acl_time) = (stat _)[9];
- return if ($am_time < $acl_time);
- }
- }
-
- if (-e "$out_file")
- {
- unlink ($out_file)
- or die "$me: cannot remove $out_file: $!\n";
- }
- my $gm_file = new Automake::XFile "> $out_file";
- verbose "creating ", $makefile, ".in";
-
- print $gm_file $output_vars;
- # We make sure that `all:' is the first target.
- print $gm_file $output_all;
- print $gm_file $output_header;
- print $gm_file $output_rules;
- print $gm_file $output_trailer;
- }
-
- ################################################################
-
- # A version is a string that looks like
- # MAJOR.MINOR[.MICRO][ALPHA][-FORK]
- # where
- # MAJOR, MINOR, and MICRO are digits, ALPHA is a character, and
- # FORK any alphanumeric word.
- # Usually, ALPHA is used to label alpha releases or intermediate snapshots,
- # FORK is used for CVS branches or patched releases, and MICRO is used
- # for bug fixes releases on the MAJOR.MINOR branch.
- #
- # For the purpose of ordering, 1.4 is the same as 1.4.0, but 1.4g is
- # the same as 1.4.99g. The FORK identifier is ignored in the
- # ordering, except when it looks like -pMINOR[ALPHA]: some versions
- # were labelled like 1.4-p3a, this is the same as an alpha release
- # labelled 1.4.3a. Yes it's horrible, but Automake did not support
- # two-dot versions in the past.
-
- # version_split (VERSION)
- # -----------------------
- # Split a version string into the corresponding (MAJOR, MINOR, MICRO,
- # ALPHA, FORK) tuple. For instance "1.4g" would be split into
- # (1, 4, 99, 'g', '').
- # Return () on error.
- sub version_split ($)
- {
- my ($ver) = @_;
-
- # Special case for versions like 1.4-p2a.
- if ($ver =~ /^(\d+)\.(\d+)(?:-p(\d+)([a-z]+)?)$/)
- {
- return ($1, $2, $3, $4 || '', '');
- }
- # Common case.
- elsif ($ver =~ /^(\d+)\.(\d+)(?:\.(\d+))?([a-z])?(?:-([A-Za-z0-9]+))?$/)
- {
- return ($1, $2, $3 || (defined $4 ? 99 : 0), $4 || '', $5 || '');
- }
- return ();
- }
-
- # version_compare (\@LVERSION, \@RVERSION)
- # ----------------------------------------
- # Return 1 if LVERSION > RVERSION,
- # -1 if LVERSION < RVERSION,
- # 0 if LVERSION = RVERSION.
- sub version_compare (\@\@)
- {
- my @l = @{$_[0]};
- my @r = @{$_[1]};
-
- for my $i (0, 1, 2)
- {
- return 1 if ($l[$i] > $r[$i]);
- return -1 if ($l[$i] < $r[$i]);
- }
- for my $i (3, 4)
- {
- return 1 if ($l[$i] gt $r[$i]);
- return -1 if ($l[$i] lt $r[$i]);
- }
- return 0;
- }
-
- # Handles the logic of requiring a version number in AUTOMAKE_OPTIONS.
- # Return 0 if the required version is satisfied, 1 otherwise.
- sub version_check ($)
- {
- my ($required) = @_;
- my @version = version_split $VERSION;
- my @required = version_split $required;
-
- prog_error ("version is incorrect: $VERSION")
- if $#version == -1;
-
- # This should not happen, because process_option_list and split_version
- # use similar regexes.
- prog_error ("required version is incorrect: $required")
- if $#required == -1;
-
- # If we require 3.4n-foo then we require something
- # >= 3.4n, with the `foo' fork identifier.
- return 1
- if ($required[4] ne '' && $required[4] ne $version[4]);
-
- return 0 > version_compare @version, @required;
- }
-
- # $BOOL
- # process_option_list ($CONFIG, @OPTIONS)
- # ------------------------------
- # Process a list of options. Return 1 on error, 0 otherwise.
- # This is a helper for handle_options. CONFIG is true if we're
- # handling global options.
- sub process_option_list
- {
- my ($config, @list) = @_;
- foreach (@list)
- {
- $options{$_} = 1;
- if ($_ eq 'gnits' || $_ eq 'gnu' || $_ eq 'foreign')
- {
- &set_strictness ($_);
- }
- elsif ($_ eq 'cygnus')
- {
- $cygnus_mode = 1;
- }
- elsif (/^(.*\/)?ansi2knr$/)
- {
- # An option like "../lib/ansi2knr" is allowed. With no
- # path prefix, we assume the required programs are in this
- # directory. We save the actual option for later.
- $options{'ansi2knr'} = $_;
- }
- elsif ($_ eq 'no-installman' || $_ eq 'no-installinfo'
- || $_ eq 'dist-shar' || $_ eq 'dist-zip'
- || $_ eq 'dist-tarZ' || $_ eq 'dist-bzip2'
- || $_ eq 'dejagnu' || $_ eq 'no-texinfo.tex'
- || $_ eq 'readme-alpha' || $_ eq 'check-news'
- || $_ eq 'subdir-objects' || $_ eq 'nostdinc'
- || $_ eq 'no-exeext' || $_ eq 'no-define')
- {
- # Explicitly recognize these.
- }
- elsif ($_ eq 'no-dependencies')
- {
- $use_dependencies = 0;
- }
- elsif (/^\d+\.\d+(?:\.\d+)?[a-z]?(?:-[A-Za-z0-9]+)?$/)
- {
- # Got a version number.
- if (version_check $&)
- {
- if ($config)
- {
- file_error ($seen_init_automake,
- "require version $_, but have $VERSION");
- # Arrange to process this global option only once, otherwise
- # the error message would be printed for each Makefile.
- $global_options =~ s/(?:^| )$_(?: |$)/ /g;
- }
- else
- {
- macro_error ('AUTOMAKE_OPTIONS',
- "require version $_, but have $VERSION");
- }
- return 1;
- }
- }
- else
- {
- if ($config)
- {
- file_error ($seen_init_automake,
- "option `" . $_ . "\' not recognized");
- }
- else
- {
- macro_error ('AUTOMAKE_OPTIONS',
- "option `" . $_ . "\' not recognized");
- }
- return 1;
- }
- }
- }
-
- # Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
- sub handle_options
- {
- # Process global options first so that more specific options can
- # override.
- if (&process_option_list (1, split (' ', $global_options)))
- {
- return 1;
- }
-
- if (variable_defined ('AUTOMAKE_OPTIONS'))
- {
- if (&process_option_list (0, &variable_value_as_list_recursive ('AUTOMAKE_OPTIONS', '')))
- {
- return 1;
- }
- }
-
- if ($strictness == GNITS)
- {
- $options{'readme-alpha'} = 1;
- $options{'check-news'} = 1;
- }
-
- return 0;
- }
-
-
- # get_object_extension ($OUT)
- # ---------------------------
- # Return object extension. Just once, put some code into the output.
- # OUT is the name of the output file
- sub get_object_extension
- {
- my ($out) = @_;
-
- # Maybe require libtool library object files.
- my $extension = '.$(OBJEXT)';
- $extension = '.lo' if ($out =~ /\.la$/);
-
- # Check for automatic de-ANSI-fication.
- $extension = '$U' . $extension
- if defined $options{'ansi2knr'};
-
- $get_object_extension_was_run = 1;
-
- return $extension;
- }
-
-
- # Call finish function for each language that was used.
- sub handle_languages
- {
- if ($use_dependencies)
- {
- # Include auto-dep code. Don't include it if DEP_FILES would
- # be empty.
- if (&saw_sources_p (0) && keys %dep_files)
- {
- # Set location of depcomp.
- &define_variable ('depcomp', "\$(SHELL) $config_aux_dir/depcomp");
- &define_variable ('am__depfiles_maybe', 'depfiles');
-
- require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
-
- my @deplist = sort keys %dep_files;
-
- # We define this as a conditional variable because BSD
- # make can't handle backslashes for continuing comments on
- # the following line.
- define_pretty_variable ('DEP_FILES', 'AMDEP_TRUE', @deplist);
-
- # Generate each `include' individually. Irix 6 make will
- # not properly include several files resulting from a
- # variable expansion; generating many separate includes
- # seems safest.
- $output_rules .= "\n";
- foreach my $iter (@deplist)
- {
- $output_rules .= (subst ('AMDEP_TRUE')
- . subst ('am__include')
- . ' '
- . subst ('am__quote')
- . $iter
- . subst ('am__quote')
- . "\n");
- }
-
- # Compute the set of directories to remove in distclean-depend.
- my @depdirs = uniq (map { dirname ($_) } @deplist);
- $output_rules .= &file_contents ('depend',
- DEPDIRS => "@depdirs");
- }
- }
- else
- {
- &define_variable ('depcomp', '');
- &define_variable ('am__depfiles_maybe', '');
- }
-
- my %done;
-
- # Is the c linker needed?
- my $needs_c = 0;
- foreach my $ext (sort keys %extension_seen)
- {
- next unless $extension_map{$ext};
-
- my $lang = $languages{$extension_map{$ext}};
-
- my $rule_file = $lang->rule_file || 'depend2';
-
- # Get information on $LANG.
- my $pfx = $lang->autodep;
- my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
-
- my $AMDEP = (($use_dependencies && $lang->autodep ne 'no')
- ? 'AMDEP' : 'FALSE');
-
- my %transform = ('EXT' => $ext,
- 'PFX' => $pfx,
- 'FPFX' => $fpfx,
- 'LIBTOOL' => defined $seen_libtool,
- 'AMDEP' => $AMDEP,
- '-c' => $lang->compile_flag || '',
- 'MORE-THAN-ONE'
- => (count_files_for_language ($lang->name) > 1));
-
- # Generate the appropriate rules for this extension.
- if (($use_dependencies && $lang->autodep ne 'no')
- || defined $lang->compile)
- {
- # Some C compilers don't support -c -o. Use it only if really
- # needed.
- my $output_flag = $lang->output_flag || '';
- $output_flag = '-o'
- if (! $output_flag
- && $lang->flags eq 'CFLAGS'
- && defined $options{'subdir-objects'});
-
- # FIXME: this is a temporary hack to compute a possible
- # derived extension. This is not used by depend2.am.
- (my $der_ext = $ext) =~ tr/yl/cc/;
-
- # Another yacc/lex hack.
- my $destfile = '$*' . $der_ext;
-
- $output_rules .=
- file_contents ($rule_file,
- %transform,
- 'GENERIC' => 1,
-
- 'DERIVED-EXT' => $der_ext,
-
- # In this situation we know that the
- # object is in this directory, so
- # $(DEPDIR) is the correct location for
- # dependencies.
- 'DEPBASE' => '$(DEPDIR)/$*',
- 'BASE' => '$*',
- 'SOURCE' => '$<',
- 'OBJ' => '$@',
- 'OBJOBJ' => '$@',
- 'LTOBJ' => '$@',
-
- 'COMPILE' => '$(' . $lang->compiler . ')',
- 'LTCOMPILE' => '$(LT' . $lang->compiler . ')',
- '-o' => $output_flag);
- }
-
- # Now include code for each specially handled object with this
- # language.
- my %seen_files = ();
- foreach my $file (@{$lang_specific_files{$lang->name}})
- {
- my ($derived, $source, $obj, $myext) = split (' ', $file);
-
- # For any specially-generated object, we must respect the
- # ansi2knr setting so that we don't inadvertently try to
- # use the default rule.
- if ($lang->ansi && defined $options{'ansi2knr'})
- {
- $myext = '$U' . $myext;
- }
-
- # We might see a given object twice, for instance if it is
- # used under different conditions.
- next if defined $seen_files{$obj};
- $seen_files{$obj} = 1;
-
- my $flags = $lang->flags || '';
- my $val = "${derived}_${flags}";
-
- prog_error ("found $lang->name in handle_languages, but compiler not defined")
- unless defined $lang->compile;
-
- (my $obj_compile = $lang->compile) =~ s/\(AM_$flags/\($val/;
- my $obj_ltcompile = '$(LIBTOOL) --mode=compile ' . $obj_compile;
-
- # We _need_ `-o' for per object rules.
- my $output_flag = $lang->output_flag || '-o';
-
- my $depbase = dirname ($obj);
- $depbase = ''
- if $depbase eq '.';
- $depbase .= '/'
- unless $depbase eq '';
- $depbase .= '$(DEPDIR)/' . basename ($obj);
-
- # Generate a transform which will turn suffix targets in
- # depend2.am into real targets for the particular objects we
- # are building.
- $output_rules .=
- file_contents ($rule_file,
- (%transform,
- 'GENERIC' => 0,
-
- 'DEPBASE' => $depbase,
- 'BASE' => $obj,
- 'SOURCE' => $source,
- # Use $myext and not `.o' here, in case
- # we are actually building a new source
- # file -- e.g. via yacc.
- 'OBJ' => "$obj$myext",
- 'OBJOBJ' => "$obj.obj",
- 'LTOBJ' => "$obj.lo",
-
- 'COMPILE' => $obj_compile,
- 'LTCOMPILE' => $obj_ltcompile,
- '-o' => $output_flag));
- }
-
- # The rest of the loop is done once per language.
- next if defined $done{$lang};
- $done{$lang} = 1;
-
- # Load the language dependent Makefile chunks.
- my %lang = map { uc ($_) => 0 } keys %languages;
- $lang{uc ($lang->name)} = 1;
- $output_rules .= file_contents ('lang-compile', %transform, %lang);
-
- # If the source to a program consists entirely of code from a
- # `pure' language, for instance C++ for Fortran 77, then we
- # don't need the C compiler code. However if we run into
- # something unusual then we do generate the C code. There are
- # probably corner cases here that do not work properly.
- # People linking Java code to Fortran code deserve pain.
- $needs_c ||= ! $lang->pure;
-
- define_compiler_variable ($lang)
- if ($lang->compile);
-
- define_linker_variable ($lang)
- if ($lang->link);
-
- foreach my $var (@{$lang->config_vars})
- {
- am_error ($lang->Name
- . " source seen but `$var' not defined in"
- . " `$configure_ac'")
- if !exists $configure_vars{$var};
- }
-
- # The compiler's flag must be a configure variable.
- define_configure_variable ($lang->flags)
- if defined $lang->flags && $lang->define_flag;
-
- # Call the finisher.
- $lang->finish;
- }
-
- # If the project is entirely C++ or entirely Fortran 77 (i.e., 1
- # suffix rule was learned), don't bother with the C stuff. But if
- # anything else creeps in, then use it.
- $needs_c = 1
- if $need_link || scalar keys %suffix_rules > 1;
-
- if ($needs_c)
- {
- if (! defined $done{$languages{'c'}})
- {
- &define_configure_variable ($languages{'c'}->flags);
- &define_compiler_variable ($languages{'c'});
- }
- define_linker_variable ($languages{'c'});
- }
- }
-
- # Check to make sure a source defined in LIBOBJS is not explicitly
- # mentioned. This is a separate function (as opposed to being inlined
- # in handle_source_transform) because it isn't always appropriate to
- # do this check.
- sub check_libobjs_sources
- {
- my ($one_file, $unxformed) = @_;
-
- foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
- 'dist_EXTRA_', 'nodist_EXTRA_')
- {
- my @files;
- if (variable_defined ($prefix . $one_file . '_SOURCES'))
- {
- @files = &variable_value_as_list_recursive (
- ($prefix . $one_file . '_SOURCES'),
- 'all');
- }
- elsif ($prefix eq '')
- {
- @files = ($unxformed . '.c');
- }
- else
- {
- next;
- }
-
- foreach my $file (@files)
- {
- macro_error ($prefix . $one_file . '_SOURCES',
- "automatically discovered file `$file' should not be explicitly mentioned")
- if defined $libsources{$file};
- }
- }
- }
-
-
- # @OBJECTS
- # handle_single_transform_list ($VAR, $TOPPARENT, $DERIVED, $OBJ, @FILES)
- # -----------------------------------------------------------------------
- # Does much of the actual work for handle_source_transform.
- # Arguments are:
- # $VAR is the name of the variable that the source filenames come from
- # $TOPPARENT is the name of the _SOURCES variable which is being processed
- # $DERIVED is the name of resulting executable or library
- # $OBJ is the object extension (e.g., `$U.lo')
- # @FILES is the list of source files to transform
- # Result is a list of the names of objects
- # %linkers_used will be updated with any linkers needed
- sub handle_single_transform_list ($$$$@)
- {
- my ($var, $topparent, $derived, $obj, @files) = @_;
- my @result = ();
- my $nonansi_obj = $obj;
- $nonansi_obj =~ s/\$U//g;
-
- # Turn sources into objects. We use a while loop like this
- # because we might add to @files in the loop.
- while (scalar @files > 0)
- {
- $_ = shift @files;
-
- # Configure substitutions in _SOURCES variables are errors.
- if (/^\@.*\@$/)
- {
- macro_error ($var,
- "`$var' includes configure substitution `$_', and is referred to from `$topparent': configure substitutions not allowed in _SOURCES variables");
- next;
- }
-
- # If the source file is in a subdirectory then the `.o' is put
- # into the current directory, unless the subdir-objects option
- # is in effect.
-
- # Split file name into base and extension.
- next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
- my $full = $_;
- my $directory = $1 || '';
- my $base = $2;
- my $extension = $3;
-
- # We must generate a rule for the object if it requires its own flags.
- my $renamed = 0;
- my ($linker, $object);
-
- # This records whether we've seen a derived source file (eg,
- # yacc output).
- my $derived_source = 0;
-
- # This holds the `aggregate context' of the file we are
- # currently examining. If the file is compiled with
- # per-object flags, then it will be the name of the object.
- # Otherwise it will be `AM'. This is used by the target hook
- # language function.
- my $aggregate = 'AM';
-
- $extension = &derive_suffix ($extension, $nonansi_obj);
- my $lang;
- if ($extension_map{$extension} &&
- ($lang = $languages{$extension_map{$extension}}))
- {
- # Found the language, so see what it says.
- &saw_extension ($extension);
-
- # Note: computed subr call. The language rewrite function
- # should return one of the $LANG_* constants. It could
- # also return a list whose first value is such a constant
- # and whose second value is a new source extension which
- # should be applied. This means this particular language
- # generates another source file which we must then process
- # further.
- my $subr = 'lang_' . $lang->name . '_rewrite';
- my ($r, $source_extension)
- = & $subr ($directory, $base, $extension);
- # Skip this entry if we were asked not to process it.
- next if $r == $LANG_IGNORE;
-
- # Now extract linker and other info.
- $linker = $lang->linker;
-
- my $this_obj_ext;
- if (defined $source_extension)
- {
- $this_obj_ext = $source_extension;
- $derived_source = 1;
- }
- elsif ($lang->ansi)
- {
- $this_obj_ext = $obj;
- }
- else
- {
- $this_obj_ext = $nonansi_obj;
- }
- $object = $base . $this_obj_ext;
-
- if (defined $lang->flags
- && variable_defined ($derived . '_' . $lang->flags))
- {
- # We have a per-executable flag in effect for this
- # object. In this case we rewrite the object's
- # name to ensure it is unique. We also require
- # the `compile' program to deal with compilers
- # where `-c -o' does not work.
-
- # We choose the name `DERIVED_OBJECT' to ensure
- # (1) uniqueness, and (2) continuity between
- # invocations. However, this will result in a
- # name that is too long for losing systems, in
- # some situations. So we provide _SHORTNAME to
- # override.
-
- my $dname = $derived;
- if (variable_defined ($derived . '_SHORTNAME'))
- {
- # FIXME: should use the same conditional as
- # the _SOURCES variable. But this is really
- # silly overkill -- nobody should have
- # conditional shortnames.
- $dname = &variable_value ($derived . '_SHORTNAME');
- }
- $object = $dname . '-' . $object;
-
- require_conf_file ("$am_file.am", FOREIGN, 'compile')
- if $lang->name eq 'c';
-
- prog_error ("$lang->name flags defined without compiler")
- if ! defined $lang->compile;
-
- $renamed = 1;
- }
-
- # If rewrite said it was ok, put the object into a
- # subdir.
- if ($r == $LANG_SUBDIR && $directory ne '')
- {
- $object = $directory . '/' . $object;
- }
-
- # If doing dependency tracking, then we can't print
- # the rule. If we have a subdir object, we need to
- # generate an explicit rule. Actually, in any case
- # where the object is not in `.' we need a special
- # rule. The per-object rules in this case are
- # generated later, by handle_languages.
- if ($renamed || $directory ne '')
- {
- my $obj_sans_ext = substr ($object, 0,
- - length ($this_obj_ext));
- my $val = ("$full $obj_sans_ext "
- # Only use $this_obj_ext in the derived
- # source case because in the other case we
- # *don't* want $(OBJEXT) to appear here.
- . ($derived_source ? $this_obj_ext : '.o'));
-
- # If we renamed the object then we want to use the
- # per-executable flag name. But if this is simply a
- # subdir build then we still want to use the AM_ flag
- # name.
- if ($renamed)
- {
- $val = "$derived $val";
- $aggregate = $derived;
- }
- else
- {
- $val = "AM $val";
- }
-
- # Each item on this list is a string consisting of
- # four space-separated values: the derived flag prefix
- # (eg, for `foo_CFLAGS', it is `foo'), the name of the
- # source file, the base name of the output file, and
- # the extension for the object file.
- push (@{$lang_specific_files{$lang->name}}, $val);
- }
- }
- elsif ($extension eq $nonansi_obj)
- {
- # This is probably the result of a direct suffix rule.
- # In this case we just accept the rewrite.
- $object = "$base$extension";
- $linker = '';
- }
- else
- {
- # No error message here. Used to have one, but it was
- # very unpopular.
- # FIXME: we could potentially do more processing here,
- # perhaps treating the new extension as though it were a
- # new source extension (as above). This would require
- # more restructuring than is appropriate right now.
- next;
- }
-
- if (defined $object_map{$object})
- {
- if ($object_map{$object} ne $full)
- {
- am_error ("object `$object' created by `$full' and `$object_map{$object}'");
- }
- }
-
- my $comp_val = (($object =~ /\.lo$/)
- ? $COMPILE_LIBTOOL : $COMPILE_ORDINARY);
- (my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
- if (defined $object_compilation_map{$comp_obj}
- && $object_compilation_map{$comp_obj} != 0
- # Only see the error once.
- && ($object_compilation_map{$comp_obj}
- != ($COMPILE_LIBTOOL | $COMPILE_ORDINARY))
- && $object_compilation_map{$comp_obj} != $comp_val)
- {
- am_error ("object `$object' created both with libtool and without");
- }
- $object_compilation_map{$comp_obj} |= $comp_val;
-
- if (defined $lang)
- {
- # Let the language do some special magic if required.
- $lang->target_hook ($aggregate, $object, $full);
- }
-
- if ($derived_source)
- {
- prog_error ("$lang->name has automatic dependency tracking")
- if $lang->autodep ne 'no';
- # Make sure this new source file is handled next. That will
- # make it appear to be at the right place in the list.
- unshift (@files, $object);
- # Distribute derived sources unless the source they are
- # derived from is not.
- &push_dist_common ($object)
- unless ($topparent =~ /^(?:nobase_)?nodist_/);
- next;
- }
-
- $linkers_used{$linker} = 1;
-
- push (@result, $object);
-
- if (! defined $object_map{$object})
- {
- my @dep_list = ();
- $object_map{$object} = $full;
-
- # If file is in subdirectory, we need explicit
- # dependency.
- if ($directory ne '' || $renamed)
- {
- push (@dep_list, $full);
- }
-
- # If resulting object is in subdir, we need to make
- # sure the subdir exists at build time.
- if ($object =~ /\//)
- {
- # FIXME: check that $DIRECTORY is somewhere in the
- # project
-
- # For Java, the way we're handling it right now, a
- # `..' component doesn't make sense.
- if ($lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
- {
- am_error ("`$full' contains `..' component but should not");
- }
-
- # Make sure object is removed by `make mostlyclean'.
- $compile_clean_files{$object} = MOSTLY_CLEAN;
- # If we have a libtool object then we also must remove
- # the ordinary .o.
- if ($object =~ /\.lo$/)
- {
- (my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
- $compile_clean_files{$xobj} = MOSTLY_CLEAN;
-
- $libtool_clean_directories{$directory} = 1;
- }
-
- push (@dep_list, require_build_directory ($directory));
-
- # If we're generating dependencies, we also want
- # to make sure that the appropriate subdir of the
- # .deps directory is created.
- push (@dep_list,
- require_build_directory ($directory . '/$(DEPDIR)'))
- if $use_dependencies;
- }
-
- &pretty_print_rule ($object . ':', "\t", @dep_list)
- if scalar @dep_list > 0;
- }
-
- # Transform .o or $o file into .P file (for automatic
- # dependency code).
- if ($lang && $lang->autodep ne 'no')
- {
- my $depfile = $object;
- $depfile =~ s/\.([^.]*)$/.P$1/;
- $depfile =~ s/\$\(OBJEXT\)$/o/;
- $dep_files{dirname ($depfile) . '/$(DEPDIR)/'
- . basename ($depfile)} = 1;
- }
- }
-
- return @result;
- }
-
- # ($LINKER, $OBJVAR)
- # define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
- # $OBJ, $PARENT, $TOPPARENT)
- # ---------------------------------------------------------------------
- # Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
- #
- # Arguments are:
- # $VAR is the name of the _SOURCES variable
- # $OBJVAR is the name of the _OBJECTS variable if known (otherwise
- # it will be generated and returned).
- # $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
- # work done to determine the linker will be).
- # $ONE_FILE is the canonical (transformed) name of object to build
- # $OBJ is the object extension (ie either `.o' or `.lo').
- # $PARENT is the variable in which $VAR is used, or $VAR if not applicable.
- # $TOPPARENT is the _SOURCES variable being processed.
- #
- # Result is a pair ($LINKER, $OBJVAR):
- # $LINKER is a boolean, true if a linker is needed to deal with the objects,
- # $OBJVAR is the name of the variable defined to hold the objects.
- #
- # %linkers_used, %vars_scanned, @substfroms and @substtos should be cleared
- # before use:
- # %linkers_used variable will be set to contain the linkers desired.
- # %vars_scanned will be used to check for recursive definitions.
- # @substfroms and @substtos will be used to keep a stack of variable
- # substitutions to be applied.
- #
- sub define_objects_from_sources ($$$$$$$)
- {
- my ($var, $objvar, $nodefine, $one_file, $obj, $parent, $topparent) = @_;
-
- if (defined $vars_scanned{$var})
- {
- macro_error ($var, "variable `$var' recursively defined");
- return "";
- }
- $vars_scanned{$var} = 1;
-
- my $needlinker = "";
- my @allresults = ();
- foreach my $cond (variable_conditions ($var))
- {
- my @result;
- foreach my $val (&variable_value_as_list ($var, $cond, $parent))
- {
- # If $val is a variable (i.e. ${foo} or $(bar), not a filename),
- # handle the sub variable recursively.
- if ($val =~ /^\$\{([^}]*)\}$/ || $val =~ /^\$\(([^)]*)\)$/)
- {
- my $subvar = $1;
-
- # If the user uses a losing variable name, just ignore it.
- # This isn't ideal, but people have requested it.
- next if ($subvar =~ /\@.*\@/);
-
- # See if the variable is actually a substitution reference
- my ($from, $to);
- my @temp_list;
- if ($subvar =~ /$SUBST_REF_PATTERN/o)
- {
- $subvar = $1;
- $to = $3;
- $from = quotemeta $2;
- }
- push @substfroms, $from;
- push @substtos, $to;
-
- my ($temp, $varname)
- = define_objects_from_sources ($subvar, undef,
- $nodefine, $one_file,
- $obj, $var, $topparent);
-
- push (@result, '$('. $varname . ')');
- $needlinker ||= $temp;
-
- pop @substfroms;
- pop @substtos;
- }
- else # $var is a filename
- {
- my $substnum=$#substfroms;
- while ($substnum >= 0)
- {
- $val =~ s/$substfroms[$substnum]$/$substtos[$substnum]/
- if defined $substfroms[$substnum];
- $substnum -= 1;
- }
-
- my (@transformed) =
- &handle_single_transform_list ($var, $topparent, $one_file, $obj, $val);
- push (@result, @transformed);
- $needlinker = "true" if @transformed;
- }
- }
- push (@allresults, [$cond, @result]);
- }
- # Find a name for the variable, unless imposed.
- $objvar = subobjname (@allresults) unless defined $objvar;
- # Define _OBJECTS conditionally
- unless ($nodefine)
- {
- foreach my $pair (@allresults)
- {
- my ($cond, @result) = @$pair;
- define_pretty_variable ($objvar, $cond, @result);
- }
- }
-
- delete $vars_scanned{$var};
- return ($needlinker, $objvar);
- }
-
-
- # $VARNAME
- # subobjname (@DEFINITIONS)
- # -------------------------
- # Return a name for an object variable that with definitions @DEFINITIONS.
- # @DEFINITIONS is a list of pair [$COND, @OBJECTS].
- #
- # If we already have an object variable containing @DEFINITIONS, reuse it.
- # This way, we avoid combinatorial explosion of the generated
- # variables. Especially, in a Makefile such as:
- #
- # | if FOO1
- # | A1=1
- # | endif
- # |
- # | if FOO2
- # | A2=2
- # | endif
- # |
- # | ...
- # |
- # | if FOON
- # | AN=N
- # | endif
- # |
- # | B=$(A1) $(A2) ... $(AN)
- # |
- # | c_SOURCES=$(B)
- # | d_SOURCES=$(B)
- #
- # The generated c_OBJECTS and d_OBJECTS will share the same variable
- # definitions.
- #
- # This setup can be the case of a testsuite containing lots (>100) of
- # small C programs, all testing the same set of source files.
- sub subobjname (@)
- {
- my $key = '';
- foreach my $pair (@_)
- {
- my ($cond, @values) = @$pair;
- $key .= "($cond)@values";
- }
-
- return $subobjvar{$key} if exists $subobjvar{$key};
-
- my $num = 1 + keys (%subobjvar);
- my $name = "am__objects_${num}";
- $subobjvar{$key} = $name;
- return $name;
- }
-
-
- # Handle SOURCE->OBJECT transform for one program or library.
- # Arguments are:
- # canonical (transformed) name of object to build
- # actual name of object to build
- # object extension (ie either `.o' or `$o'.
- # Return result is name of linker variable that must be used.
- # Empty return means just use `LINK'.
- sub handle_source_transform
- {
- # one_file is canonical name. unxformed is given name. obj is
- # object extension.
- my ($one_file, $unxformed, $obj) = @_;
-
- my ($linker) = '';
-
- if (variable_defined ($one_file . "_OBJECTS"))
- {
- macro_error ($one_file . '_OBJECTS',
- $one_file . '_OBJECTS', 'should not be defined');
- # No point in continuing.
- return;
- }
-
- my %used_pfx = ();
- my $needlinker;
- %linkers_used = ();
- foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
- 'dist_EXTRA_', 'nodist_EXTRA_')
- {
- my $var = $prefix . $one_file . "_SOURCES";
- next
- if !variable_defined ($var);
-
- # We are going to define _OBJECTS variables using the prefix.
- # Then we glom them all together. So we can't use the null
- # prefix here as we need it later.
- my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
-
- # Keep track of which prefixes we saw.
- $used_pfx{$xpfx} = 1
- unless $prefix =~ /EXTRA_/;
-
- push @sources, "\$($var)";
- push @dist_sources, "\$($var)"
- unless $prefix =~ /^nodist_/;
-
- @substfroms = ();
- @substtos = ();
- %vars_scanned = ();
- my ($temp, $objvar) =
- define_objects_from_sources ($var,
- $xpfx . $one_file . '_OBJECTS',
- $prefix =~ /EXTRA_/,
- $one_file, $obj, $var, $var);
- $needlinker ||= $temp;
- }
- if ($needlinker)
- {
- $linker ||= &resolve_linker (%linkers_used);
- }
-
- my @keys = sort keys %used_pfx;
- if (scalar @keys == 0)
- {
- &define_variable ($one_file . "_SOURCES", $unxformed . ".c");
- push (@sources, $unxformed . '.c');
- push (@dist_sources, $unxformed . '.c');
-
- %linkers_used = ();
- my (@result) =
- &handle_single_transform_list ($one_file . '_SOURCES',
- $one_file . '_SOURCES',
- $one_file, $obj,
- "$unxformed.c");
- $linker ||= &resolve_linker (%linkers_used);
- define_pretty_variable ($one_file . "_OBJECTS", '', @result)
- }
- else
- {
- grep ($_ = '$(' . $_ . $one_file . '_OBJECTS)', @keys);
- define_pretty_variable ($one_file . '_OBJECTS', '', @keys);
- }
-
- # If we want to use `LINK' we must make sure it is defined.
- if ($linker eq '')
- {
- $need_link = 1;
- }
-
- return $linker;
- }
-
-
- # handle_lib_objects ($XNAME, $VAR)
- # ---------------------------------
- # Special-case @ALLOCA@ and @LIBOBJS@ in _LDADD or _LIBADD variables.
- # Also, generate _DEPENDENCIES variable if appropriate.
- # Arguments are:
- # transformed name of object being built, or empty string if no object
- # name of _LDADD/_LIBADD-type variable to examine
- # Returns 1 if LIBOBJS seen, 0 otherwise.
- sub handle_lib_objects
- {
- my ($xname, $var) = @_;
-
- prog_error ("handle_lib_objects: $var undefined")
- if ! variable_defined ($var);
-
- my $ret = 0;
- foreach my $cond (variable_conditions_recursive ($var))
- {
- if (&handle_lib_objects_cond ($xname, $var, $cond))
- {
- $ret = 1;
- }
- }
- return $ret;
- }
-
- # Subroutine of handle_lib_objects: handle a particular condition.
- sub handle_lib_objects_cond
- {
- my ($xname, $var, $cond) = @_;
-
- # We recognize certain things that are commonly put in LIBADD or
- # LDADD.
- my @dep_list = ();
-
- my $seen_libobjs = 0;
- my $flagvar = 0;
-
- foreach my $lsearch (&variable_value_as_list_recursive ($var, $cond))
- {
- # Skip -lfoo and -Ldir; these are explicitly allowed.
- next if $lsearch =~ /^-[lL]/;
- if (! $flagvar && $lsearch =~ /^-/)
- {
- if ($var =~ /^(.*)LDADD$/)
- {
- # Skip -dlopen and -dlpreopen; these are explicitly allowed.
- next if $lsearch =~ /^-dl(pre)?open$/;
- my $prefix = $1 || 'AM_';
- macro_error ($var,
- "linker flags such as `$lsearch' belong in `${prefix}LDFLAGS");
- }
- else
- {
- $var =~ /^(.*)LIBADD$/;
- # Only get this error once.
- $flagvar = 1;
- macro_error ($var,
- "linker flags such as `$lsearch' belong in `${1}LDFLAGS");
- }
- }
-
- # Assume we have a file of some sort, and push it onto the
- # dependency list. Autoconf substitutions are not pushed;
- # rarely is a new dependency substituted into (eg) foo_LDADD
- # -- but "bad things (eg -lX11) are routinely substituted.
- # Note that LIBOBJS and ALLOCA are exceptions to this rule,
- # and handled specially below.
- push (@dep_list, $lsearch)
- unless $lsearch =~ /^\@.*\@$/;
-
- # Automatically handle @LIBOBJS@ and @ALLOCA@. Basically this
- # means adding entries to dep_files.
- if ($lsearch =~ /^\@(LT)?LIBOBJS\@$/)
- {
- my $lt = $1 ? $1 : '';
- my $myobjext = ($1 ? 'l' : '') . 'o';
-
- push (@dep_list, $lsearch);
- $seen_libobjs = 1;
- if (! keys %libsources
- && ! variable_defined ($lt . 'LIBOBJS'))
- {
- macro_error ($var,
- "\@$lt" . "LIBOBJS\@ seen but never set in `$configure_ac'");
- }
-
- foreach my $iter (keys %libsources)
- {
- if ($iter =~ /\.[cly]$/)
- {
- &saw_extension ($&);
- &saw_extension ('.c');
- }
-
- if ($iter =~ /\.h$/)
- {
- require_file_with_macro ($var, FOREIGN, $iter);
- }
- elsif ($iter ne 'alloca.c')
- {
- my $rewrite = $iter;
- $rewrite =~ s/\.c$/.P$myobjext/;
- $dep_files{'$(DEPDIR)/' . $rewrite} = 1;
- $rewrite = "^" . quotemeta ($iter) . "\$";
- # Only require the file if it is not a built source.
- if (! variable_defined ('BUILT_SOURCES')
- || ! grep (/$rewrite/,
- &variable_value_as_list_recursive (
- 'BUILT_SOURCES', 'all')))
- {
- require_file_with_macro ($var, FOREIGN, $iter);
- }
- }
- }
- }
- elsif ($lsearch =~ /^\@(LT)?ALLOCA\@$/)
- {
- my $lt = $1 ? $1 : '';
- my $myobjext = ($1 ? 'l' : '') . 'o';
-
- push (@dep_list, $lsearch);
- macro_error ($var,
- "\@$lt" . "ALLOCA\@ seen but `AC_FUNC_ALLOCA' not in `$configure_ac'")
- if ! defined $libsources{'alloca.c'};
- $dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
- require_file_with_macro ($var, FOREIGN, 'alloca.c');
- &saw_extension ('c');
- }
- }
-
- if ($xname ne '')
- {
- if (conditional_ambiguous_p ($xname . '_DEPENDENCIES', $cond) ne '')
- {
- # Note that we've examined this.
- &examine_variable ($xname . '_DEPENDENCIES');
- }
- else
- {
- define_pretty_variable ($xname . '_DEPENDENCIES', $cond,
- @dep_list);
- }
- }
-
- return $seen_libobjs;
- }
-
- # Canonicalize the input parameter
- sub canonicalize
- {
- my ($string) = @_;
- $string =~ tr/A-Za-z0-9_\@/_/c;
- return $string;
- }
-
- # Canonicalize a name, and check to make sure the non-canonical name
- # is never used. Returns canonical name. Arguments are name and a
- # list of suffixes to check for.
- sub check_canonical_spelling
- {
- my ($name, @suffixes) = @_;
-
- my $xname = &canonicalize ($name);
- if ($xname ne $name)
- {
- foreach my $xt (@suffixes)
- {
- macro_error ("$name$xt",
- "invalid variable `$name$xt'; should be `$xname$xt'")
- if variable_defined ("$name$xt");
- }
- }
-
- return $xname;
- }
-
-
- # handle_compile ()
- # -----------------
- # Set up the compile suite.
- sub handle_compile ()
- {
- return
- unless $get_object_extension_was_run;
-
- # Boilerplate.
- my $default_includes = '';
- if (! defined $options{'nostdinc'})
- {
- $default_includes = ' -I. -I$(srcdir)';
-
- if (variable_defined ('CONFIG_HEADER'))
- {
- foreach my $hdr (split (' ', &variable_value ('CONFIG_HEADER')))
- {
- $default_includes .= ' -I' . dirname ($hdr);
- }
- }
- }
-
- my (@mostly_rms, @dist_rms);
- foreach my $item (sort keys %compile_clean_files)
- {
- if ($compile_clean_files{$item} == MOSTLY_CLEAN)
- {
- push (@mostly_rms, "\t-rm -f $item");
- }
- elsif ($compile_clean_files{$item} == DIST_CLEAN)
- {
- push (@dist_rms, "\t-rm -f $item");
- }
- else
- {
- prog_error ("invalid entry in \%compile_clean_files");
- }
- }
-
- my ($coms, $vars, $rules) =
- &file_contents_internal (1, "$libdir/am/compile.am",
- ('DEFAULT_INCLUDES' => $default_includes,
- 'MOSTLYRMS' => join ("\n", @mostly_rms),
- 'DISTRMS' => join ("\n", @dist_rms)));
- $output_vars .= $vars;
- $output_rules .= "$coms$rules";
-
- # Check for automatic de-ANSI-fication.
- if (defined $options{'ansi2knr'})
- {
- if (! $am_c_prototypes)
- {
- macro_error ('AUTOMAKE_OPTIONS',
- "option `ansi2knr' in use but `AM_C_PROTOTYPES' not in `$configure_ac'");
- &keyed_aclocal_warning ('AM_C_PROTOTYPES');
- # Only give this error once.
- $am_c_prototypes = 1;
- }
-
- # topdir is where ansi2knr should be.
- if ($options{'ansi2knr'} eq 'ansi2knr')
- {
- # Only require ansi2knr files if they should appear in
- # this directory.
- require_file_with_macro ('AUTOMAKE_OPTIONS', FOREIGN,
- 'ansi2knr.c', 'ansi2knr.1');
-
- # ansi2knr needs to be built before subdirs, so unshift it.
- unshift (@all, '$(ANSI2KNR)');
- }
-
- my $ansi2knr_dir = '';
- $ansi2knr_dir = dirname ($options{'ansi2knr'})
- if $options{'ansi2knr'} ne 'ansi2knr';
-
- $output_rules .= &file_contents ('ansi2knr',
- ('ANSI2KNR-DIR' => $ansi2knr_dir));
-
- }
- }
-
- # handle_libtool ()
- # -----------------
- # Handle libtool rules.
- sub handle_libtool
- {
- return unless $seen_libtool;
-
- # Libtool requires some files, but only at top level.
- require_conf_file ($seen_libtool, FOREIGN, @libtool_files)
- if $relative_dir eq '.';
-
- my @libtool_rms;
- foreach my $item (sort keys %libtool_clean_directories)
- {
- my $dir = ($item eq '.') ? '' : "$item/";
- # .libs is for Unix, _libs for DOS.
- push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
- }
-
- # Output the libtool compilation rules.
- $output_rules .= &file_contents ('libtool',
- ('LTRMS' => join ("\n", @libtool_rms)));
- }
-
- # handle_programs ()
- # ------------------
- # Handle C programs.
- sub handle_programs
- {
- my @proglist = &am_install_var ('progs', 'PROGRAMS',
- 'bin', 'sbin', 'libexec', 'pkglib',
- 'noinst', 'check');
- return if ! @proglist;
-
- my $seen_libobjs = 0;
- foreach my $one_file (@proglist)
- {
- my $obj = &get_object_extension ($one_file);
-
- # Canonicalize names and check for misspellings.
- my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
- '_SOURCES', '_OBJECTS',
- '_DEPENDENCIES');
-
- my $linker = &handle_source_transform ($xname, $one_file, $obj);
-
- my $xt = '';
- if (variable_defined ($xname . "_LDADD"))
- {
- if (&handle_lib_objects ($xname, $xname . '_LDADD'))
- {
- $seen_libobjs = 1;
- }
- $xt = '_LDADD';
- }
- else
- {
- # User didn't define prog_LDADD override. So do it.
- &define_variable ($xname . '_LDADD', '$(LDADD)');
-
- # This does a bit too much work. But we need it to
- # generate _DEPENDENCIES when appropriate.
- if (variable_defined ('LDADD'))
- {
- if (&handle_lib_objects ($xname, 'LDADD'))
- {
- $seen_libobjs = 1;
- }
- }
- elsif (! variable_defined ($xname . '_DEPENDENCIES'))
- {
- &define_variable ($xname . '_DEPENDENCIES', '');
- }
- $xt = '_SOURCES'
- }
-
- if (variable_defined ($xname . '_LIBADD'))
- {
- macro_error ($xname . '_LIBADD',
- "use `" . $xname . "_LDADD', not `"
- . $xname . "_LIBADD'");
- }
-
- if (! variable_defined ($xname . '_LDFLAGS'))
- {
- # Define the prog_LDFLAGS variable.
- &define_variable ($xname . '_LDFLAGS', '');
- }
-
- # Determine program to use for link.
- my $xlink;
- if (variable_defined ($xname . '_LINK'))
- {
- $xlink = $xname . '_LINK';
- }
- else
- {
- $xlink = $linker ? $linker : 'LINK';
- }
-
- # If the resulting program lies into a subdirectory,
- # make sure this directory will exist.
- my $dirstamp = require_build_directory_maybe ($one_file);
-
- # Don't add $(EXEEXT) if user already did.
- my $extension = ($one_file !~ /\$\(EXEEXT\)$/
- ? "\$(EXEEXT)"
- : '');
-
- $output_rules .= &file_contents ('program',
- ('PROGRAM' => $one_file,
- 'XPROGRAM' => $xname,
- 'XLINK' => $xlink,
- 'DIRSTAMP' => $dirstamp,
- 'EXEEXT' => $extension));
- }
-
- if (variable_defined ('LDADD') && &handle_lib_objects ('', 'LDADD'))
- {
- $seen_libobjs = 1;
- }
-
- if ($seen_libobjs)
- {
- foreach my $one_file (@proglist)
- {
- my $xname = &canonicalize ($one_file);
-
- if (variable_defined ($xname . '_LDADD'))
- {
- &check_libobjs_sources ($xname, $xname . '_LDADD');
- }
- elsif (variable_defined ('LDADD'))
- {
- &check_libobjs_sources ($xname, 'LDADD');
- }
- }
- }
- }
-
-
- # handle_libraries ()
- # -------------------
- # Handle libraries.
- sub handle_libraries
- {
- my @liblist = &am_install_var ('libs', 'LIBRARIES',
- 'lib', 'pkglib', 'noinst', 'check');
- return if ! @liblist;
-
- my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
- 'noinst', 'check');
- if (! defined $configure_vars{'RANLIB'}
- && @prefix)
- {
- macro_error ($prefix[0] . '_LIBRARIES',
- "library used but `RANLIB' not defined in `$configure_ac'");
- # Only get this error once. If this is ever printed, we have
- # a bug.
- $configure_vars{'RANLIB'} = 'BUG';
- }
-
- my $seen_libobjs = 0;
- foreach my $onelib (@liblist)
- {
- # Check that the library fits the standard naming convention.
- if (basename ($onelib) !~ /^lib.*\.a/)
- {
- # FIXME should put line number here. That means mapping
- # from library name back to variable name.
- &am_error ("`$onelib' is not a standard library name");
- }
-
- my $obj = &get_object_extension ($onelib);
-
- # Canonicalize names and check for misspellings.
- my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
- '_OBJECTS', '_DEPENDENCIES',
- '_AR');
-
- if (! variable_defined ($xlib . '_AR'))
- {
- &define_variable ($xlib . '_AR', '$(AR) cru');
- }
-
- if (variable_defined ($xlib . '_LIBADD'))
- {
- if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
- {
- $seen_libobjs = 1;
- }
- }
- else
- {
- # Generate support for conditional object inclusion in
- # libraries.
- &define_variable ($xlib . "_LIBADD", '');
- }
-
- if (variable_defined ($xlib . '_LDADD'))
- {
- macro_error ($xlib . '_LDADD',
- "use `" . $xlib . "_LIBADD', not `"
- . $xlib . "_LDADD'");
- }
-
- # Make sure we at look at this.
- &examine_variable ($xlib . '_DEPENDENCIES');
-
- &handle_source_transform ($xlib, $onelib, $obj);
-
- # If the resulting library lies into a subdirectory,
- # make sure this directory will exist.
- my $dirstamp = require_build_directory_maybe ($onelib);
-
- $output_rules .= &file_contents ('library',
- ('LIBRARY' => $onelib,
- 'XLIBRARY' => $xlib,
- 'DIRSTAMP' => $dirstamp));
- }
-
- if ($seen_libobjs)
- {
- foreach my $onelib (@liblist)
- {
- my $xlib = &canonicalize ($onelib);
- if (variable_defined ($xlib . '_LIBADD'))
- {
- &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
- }
- }
- }
- }
-
-
- # handle_ltlibraries ()
- # ---------------------
- # Handle shared libraries.
- sub handle_ltlibraries
- {
- my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
- 'noinst', 'lib', 'pkglib', 'check');
- return if ! @liblist;
-
- my %instdirs;
- my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
- 'noinst', 'check');
-
- foreach my $key (@prefix)
- {
- if (!$seen_libtool)
- {
- macro_error ($key . '_LTLIBRARIES',
- "library used but `LIBTOOL' not defined in `$configure_ac'");
- # Only get this error once. If this is ever printed,
- # we have a bug.
- $configure_vars{'LIBTOOL'} = 'BUG';
- $seen_libtool = $var_location{$key . '_LTLIBRARIES'};
- }
-
- # Get the installation directory of each library.
- (my $dir = $key) =~ s/^nobase_//;
- for (variable_value_as_list_recursive ($key . '_LTLIBRARIES', 'all'))
- {
- if ($instdirs{$_})
- {
- am_error ("`$_' is already going to be installed in `$instdirs{$_}'");
- }
- else
- {
- $instdirs{$_} = $dir;
- }
- }
- }
-
- my $seen_libobjs = 0;
- foreach my $onelib (@liblist)
- {
- my $obj = &get_object_extension ($onelib);
-
- # Canonicalize names and check for misspellings.
- my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
- '_SOURCES', '_OBJECTS',
- '_DEPENDENCIES');
-
- if (! variable_defined ($xlib . '_LDFLAGS'))
- {
- # Define the lib_LDFLAGS variable.
- &define_variable ($xlib . '_LDFLAGS', '');
- }
-
- # Check that the library fits the standard naming convention.
- my $libname_rx = "^lib.*\.la";
- if ((variable_defined ($xlib . '_LDFLAGS')
- && grep (/-module/, &variable_value_as_list_recursive (
- $xlib . '_LDFLAGS', 'all')))
- || (variable_defined ('LDFLAGS')
- && grep (/-module/, &variable_value_as_list_recursive (
- 'LDFLAGS', 'all'))))
- {
- # Relax name checking for libtool modules.
- $libname_rx = "\.la";
- }
- if (basename ($onelib) !~ /$libname_rx$/)
- {
- # FIXME this should only be a warning for foreign packages
- # FIXME should put line number here. That means mapping
- # from library name back to variable name.
- &am_error ("`$onelib' is not a standard libtool library name");
- }
-
- if (variable_defined ($xlib . '_LIBADD'))
- {
- if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
- {
- $seen_libobjs = 1;
- }
- }
- else
- {
- # Generate support for conditional object inclusion in
- # libraries.
- &define_variable ($xlib . "_LIBADD", '');
- }
-
- if (variable_defined ($xlib . '_LDADD'))
- {
- macro_error ($xlib . '_LDADD',
- "use `" . $xlib . "_LIBADD', not `"
- . $xlib . "_LDADD'");
- }
-
- # Make sure we at look at this.
- &examine_variable ($xlib . '_DEPENDENCIES');
-
- my $linker = &handle_source_transform ($xlib, $onelib, $obj);
-
- # Determine program to use for link.
- my $xlink;
- if (variable_defined ($xlib . '_LINK'))
- {
- $xlink = $xlib . '_LINK';
- }
- else
- {
- $xlink = $linker ? $linker : 'LINK';
- }
-
- my $rpath;
- if ($instdirs{$onelib} eq 'EXTRA'
- || $instdirs{$onelib} eq 'noinst'
- || $instdirs{$onelib} eq 'check')
- {
- # It's an EXTRA_ library, so we can't specify -rpath,
- # because we don't know where the library will end up.
- # The user probably knows, but generally speaking automake
- # doesn't -- and in fact configure could decide
- # dynamically between two different locations.
- $rpath = '';
- }
- else
- {
- $rpath = ('-rpath $(' . $instdirs{$onelib} . 'dir)');
- }
-
- # If the resulting library lies into a subdirectory,
- # make sure this directory will exist.
- my $dirstamp = require_build_directory_maybe ($onelib);
-
- $output_rules .= &file_contents ('ltlibrary',
- ('LTLIBRARY' => $onelib,
- 'XLTLIBRARY' => $xlib,
- 'RPATH' => $rpath,
- 'XLINK' => $xlink,
- 'DIRSTAMP' => $dirstamp));
- }
-
- if ($seen_libobjs)
- {
- foreach my $onelib (@liblist)
- {
- my $xlib = &canonicalize ($onelib);
- if (variable_defined ($xlib . '_LIBADD'))
- {
- &check_libobjs_sources ($xlib, $xlib . '_LIBADD');
- }
- }
- }
- }
-
- # See if any _SOURCES variable were misspelled. Also, make sure that
- # EXTRA_ variables don't contain configure substitutions.
- sub check_typos ()
- {
- # It is ok if the user sets this particular variable.
- &examine_variable ('AM_LDFLAGS');
-
- foreach my $varname (keys %var_value)
- {
- foreach my $primary ('_SOURCES', '_LIBADD', '_LDADD', '_LDFLAGS',
- '_DEPENDENCIES')
- {
- macro_error ($varname,
- "invalid unused variable name: `$varname'")
- # Note that a configure variable is always legitimate.
- # It is natural to name such variables after the
- # primary, so we explicitly allow it.
- if $varname =~ /$primary$/ && ! $content_seen{$varname}
- && ! exists $configure_vars{$varname};
- }
- }
- }
-
-
- # Handle scripts.
- sub handle_scripts
- {
- # NOTE we no longer automatically clean SCRIPTS, because it is
- # useful to sometimes distribute scripts verbatim. This happens
- # eg in Automake itself.
- &am_install_var ('-candist', 'scripts', 'SCRIPTS',
- 'bin', 'sbin', 'libexec', 'pkgdata',
- 'noinst', 'check');
- }
-
-
- # ($OUTFILE, $VFILE, @CLEAN_FILES)
- # &scan_texinfo_file ($FILENAME)
- # ------------------------------
- # $OUTFILE is the name of the info file produced by $FILENAME.
- # $VFILE is the name of the version.texi file used (empty if none).
- # @CLEAN_FILES is the list of by products (indexes etc.)
- sub scan_texinfo_file
- {
- my ($filename) = @_;
-
- # These are always created, no matter whether indexes are used or not.
- # (Actually tmp is only created if an @macro is used and a certain e-TeX
- # feature is not available.)
- my @clean_suffixes = qw(aux dvi log ps toc tmp
- cp fn ky vr tp pg); # grep new.*index texinfo.tex
-
- # There are predefined indexes which don't follow the regular rules.
- my %predefined_index = qw(c cps
- f fns
- k kys
- v vrs
- t tps
- p pgs);
-
- # There are commands which include a hidden index command.
- my %hidden_index = (tp => 'tps');
- $hidden_index{$_} = 'fns' foreach qw(fn un typefn typefun max spec
- op typeop method typemethod);
- $hidden_index{$_} = 'vrs' foreach qw(vr var typevr typevar opt cv
- ivar typeivar);
-
- # Indexes stored into another one. In this case, the *.??s file
- # is not created.
- my @syncodeindexes = ();
-
- my $texi = new Automake::XFile "< $filename";
- verbose "reading $filename";
-
- my ($outfile, $vfile);
- while ($_ = $texi->getline)
- {
- if (/^\@setfilename +(\S+)/)
- {
- $outfile = $1;
- if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
- {
- file_error ("$filename:$.",
- "output `$outfile' has unrecognized extension");
- return;
- }
- }
- # A "version.texi" file is actually any file whose name
- # matches "vers*.texi".
- elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
- {
- $vfile = $1;
- }
-
- # Try to find what are the indexes which are used.
-
- # Creating a new category of index.
- elsif (/^\@def(code)?index (\w+)/)
- {
- push @clean_suffixes, $2;
- }
-
- # Storing in a predefined index.
- elsif (/^\@([cfkvtp])index /)
- {
- push @clean_suffixes, $predefined_index{$1};
- }
- elsif (/^\@def(\w+) /)
- {
- push @clean_suffixes, $hidden_index{$1}
- if defined $hidden_index{$1};
- }
-
- # Merging an index into an another.
- elsif (/^\@syn(code)?index (\w+) (\w+)/)
- {
- push @syncodeindexes, "$2s";
- push @clean_suffixes, "$3s";
- }
-
- }
-
- if ($outfile eq '')
- {
- &am_error ("`$filename' missing \@setfilename");
- return;
- }
-
- my $infobase = basename ($filename);
- $infobase =~ s/\.te?xi(nfo)?$//;
- my %clean_files = map { +"$infobase.$_" => 1 } @clean_suffixes;
- grep { delete $clean_files{"$infobase.$_"} } @syncodeindexes;
- return ($outfile, $vfile, (sort keys %clean_files));
- }
-
-
- # ($DO-SOMETHING, $TEXICLEANS)
- # handle_texinfo_helper ()
- # ------------------------
- # Handle all Texinfo source; helper for handle_texinfo
- sub handle_texinfo_helper
- {
- macro_error ('TEXINFOS',
- "`TEXINFOS' is an anachronism; use `info_TEXINFOS'")
- if variable_defined ('TEXINFOS');
- return (0, '') if (! variable_defined ('info_TEXINFOS')
- && ! variable_defined ('html_TEXINFOS'));
-
- if (variable_defined ('html_TEXINFOS'))
- {
- macro_error ('html_TEXINFOS',
- "HTML generation not yet supported");
- return (0, '');
- }
-
- my @texis = &variable_value_as_list_recursive ('info_TEXINFOS', 'all');
-
- my (@info_deps_list, @dvis_list, @texi_deps);
- my %versions;
- my $done = 0;
- my @texi_cleans;
- my $canonical;
-
- my %texi_suffixes;
- foreach my $info_cursor (@texis)
- {
- my $infobase = $info_cursor;
- $infobase =~ s/\.(txi|texinfo|texi)$//;
-
- if ($infobase eq $info_cursor)
- {
- # FIXME: report line number.
- &am_error ("texinfo file `$info_cursor' has unrecognized extension");
- next;
- }
- $texi_suffixes{$1} = 1;
-
- # If 'version.texi' is referenced by input file, then include
- # automatic versioning capability.
- my ($out_file, $vtexi, @clean_files) =
- &scan_texinfo_file ("$relative_dir/$info_cursor")
- or next;
- push (@texi_cleans, @clean_files);
-
- if ($vtexi)
- {
- &am_error ("`$vtexi', included in `$info_cursor', also included in `$versions{$vtexi}'")
- if (defined $versions{$vtexi});
- $versions{$vtexi} = $info_cursor;
-
- # We number the stamp-vti files. This is doable since the
- # actual names don't matter much. We only number starting
- # with the second one, so that the common case looks nice.
- my $vti = ($done ? $done : 'vti');
- ++$done;
-
- # This is ugly, but it is our historical practice.
- if ($config_aux_dir_set_in_configure_in)
- {
- require_conf_file_with_macro ('info_TEXINFOS', FOREIGN,
- 'mdate-sh');
- }
- else
- {
- require_file_with_macro ('info_TEXINFOS', FOREIGN,
- 'mdate-sh');
- }
-
- my $conf_dir;
- if ($config_aux_dir_set_in_configure_in)
- {
- $conf_dir = $config_aux_dir;
- $conf_dir .= '/' unless $conf_dir =~ /\/$/;
- }
- else
- {
- $conf_dir = '$(srcdir)/';
- }
- $output_rules .= &file_contents ('texi-vers',
- ('TEXI' => $info_cursor,
- 'VTI' => $vti,
- 'VTEXI' => $vtexi,
- 'MDDIR' => $conf_dir));
- }
-
- # If user specified file_TEXINFOS, then use that as explicit
- # dependency list.
- @texi_deps = ();
- push (@texi_deps, $info_cursor);
- # Prefix with $(srcdir) because some version of make won't
- # work if the target has it and the dependency doesn't.
- push (@texi_deps, '$(srcdir)/' . $vtexi) if $vtexi;
-
- my $canonical = &canonicalize ($infobase);
- if (variable_defined ($canonical . "_TEXINFOS"))
- {
- push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
- &push_dist_common ('$(' . $canonical . '_TEXINFOS)');
- }
-
- $output_rules .= ("\n" . $out_file . ": "
- . "@texi_deps"
- . "\n" . $infobase . ".dvi: "
- . "@texi_deps"
- . "\n");
-
- push (@info_deps_list, $out_file);
- push (@dvis_list, $infobase . '.dvi');
- }
-
- # Handle location of texinfo.tex.
- my $need_texi_file = 0;
- my $texinfodir;
- if ($cygnus_mode)
- {
- $texinfodir = '$(top_srcdir)/../texinfo';
- &define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex");
- }
- elsif ($config_aux_dir_set_in_configure_in)
- {
- $texinfodir = $config_aux_dir;
- &define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex");
- $need_texi_file = 2; # so that we require_conf_file later
- }
- elsif (variable_defined ('TEXINFO_TEX'))
- {
- # The user defined TEXINFO_TEX so assume he knows what he is
- # doing.
- $texinfodir = ('$(srcdir)/'
- . dirname (&variable_value ('TEXINFO_TEX')));
- }
- else
- {
- $texinfodir = '$(srcdir)';
- $need_texi_file = 1;
- }
-
- foreach my $txsfx (sort keys %texi_suffixes)
- {
- $output_rules .= &file_contents ('texibuild',
- ('TEXINFODIR' => $texinfodir,
- 'SUFFIX' => $txsfx));
- }
-
- # The return value.
- my $texiclean = &pretty_print_internal ("", "\t ", @texi_cleans);
-
- push (@dist_targets, 'dist-info');
-
- if (! defined $options{'no-installinfo'})
- {
- # Make sure documentation is made and installed first. Use
- # $(INFO_DEPS), not 'info', because otherwise recursive makes
- # get run twice during "make all".
- unshift (@all, '$(INFO_DEPS)');
- }
-
- &define_variable ("INFO_DEPS", "@info_deps_list");
- &define_variable ("DVIS", "@dvis_list");
- # This next isn't strictly needed now -- the places that look here
- # could easily be changed to look in info_TEXINFOS. But this is
- # probably better, in case noinst_TEXINFOS is ever supported.
- &define_variable ("TEXINFOS", &variable_value ('info_TEXINFOS'));
-
- # Do some error checking. Note that this file is not required
- # when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
- # up above.
- if ($need_texi_file && ! defined $options{'no-texinfo.tex'})
- {
- if ($need_texi_file > 1)
- {
- require_conf_file_with_macro ('info_TEXINFOS', FOREIGN,
- 'texinfo.tex');
- }
- else
- {
- require_file_with_macro ('info_TEXINFOS', FOREIGN, 'texinfo.tex');
- }
- }
-
- return (1, $texiclean);
- }
-
- # handle_texinfo ()
- # -----------------
- # Handle all Texinfo source.
- sub handle_texinfo
- {
- my ($do_something, $texiclean) = handle_texinfo_helper ();
- $output_rules .= &file_contents ('texinfos',
- ('TEXICLEAN' => $texiclean,
- 'LOCAL-TEXIS' => $do_something));
- }
-
- # Handle any man pages.
- sub handle_man_pages
- {
- macro_error ('MANS', "`MANS' is an anachronism; use `man_MANS'")
- if variable_defined ('MANS');
-
- # Find all the sections in use. We do this by first looking for
- # "standard" sections, and then looking for any additional
- # sections used in man_MANS.
- my (%sections, %vlist);
- # We handle nodist_ for uniformity. man pages aren't distributed
- # by default so it isn't actually very important.
- foreach my $pfx ('', 'dist_', 'nodist_')
- {
- # Add more sections as needed.
- foreach my $section ('0'..'9', 'n', 'l')
- {
- if (variable_defined ($pfx . 'man' . $section . '_MANS'))
- {
- $sections{$section} = 1;
- $vlist{'$(' . $pfx . 'man' . $section . '_MANS)'} = 1;
-
- &push_dist_common ('$(' . $pfx . 'man' . $section . '_MANS)')
- if $pfx eq 'dist_';
- }
- }
-
- if (variable_defined ($pfx . 'man_MANS'))
- {
- $vlist{'$(' . $pfx . 'man_MANS)'} = 1;
- foreach (&variable_value_as_list_recursive ($pfx . 'man_MANS', 'all'))
- {
- # A page like `foo.1c' goes into man1dir.
- if (/\.([0-9a-z])([a-z]*)$/)
- {
- $sections{$1} = 1;
- }
- }
-
- &push_dist_common ('$(' . $pfx . 'man_MANS)')
- if $pfx eq 'dist_';
- }
- }
-
- return unless %sections;
-
- # Now for each section, generate an install and unintall rule.
- # Sort sections so output is deterministic.
- foreach my $section (sort keys %sections)
- {
- $output_rules .= &file_contents ('mans', ('SECTION' => $section));
- }
-
- my @mans = sort keys %vlist;
- $output_vars .= file_contents ('mans-vars',
- ('MANS' => "@mans"));
-
- if (! defined $options{'no-installman'})
- {
- push (@all, '$(MANS)');
- }
- }
-
- # Handle DATA variables.
- sub handle_data
- {
- &am_install_var ('-noextra', '-candist', 'data', 'DATA',
- 'data', 'sysconf', 'sharedstate', 'localstate',
- 'pkgdata', 'noinst', 'check');
- }
-
- # Handle TAGS.
- sub handle_tags
- {
- my @tag_deps = ();
- if (variable_defined ('SUBDIRS'))
- {
- $output_rules .= ("tags-recursive:\n"
- . "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
- # Never fail here if a subdir fails; it
- # isn't important.
- . "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
- . " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
- . "\tdone\n");
- push (@tag_deps, 'tags-recursive');
- &depend ('.PHONY', 'tags-recursive');
- }
-
- if (&saw_sources_p (1)
- || variable_defined ('ETAGS_ARGS')
- || @tag_deps)
- {
- my @config;
- foreach my $spec (@config_headers)
- {
- my ($out, @ins) = split_config_file_spec ($spec);
- foreach my $in (@ins)
- {
- # If the config header source is in this directory,
- # require it.
- push @config, basename ($in)
- if $relative_dir eq dirname ($in);
- }
- }
- $output_rules .= &file_contents ('tags',
- ('CONFIG' => "@config",
- 'DIRS' => "@tag_deps"));
- &examine_variable ('TAGS_DEPENDENCIES');
- }
- elsif (variable_defined ('TAGS_DEPENDENCIES'))
- {
- macro_error ('TAGS_DEPENDENCIES',
- "doesn't make sense to define `TAGS_DEPENDENCIES' without sources or `ETAGS_ARGS'");
- }
- else
- {
- # Every Makefile must define some sort of TAGS rule.
- # Otherwise, it would be possible for a top-level "make TAGS"
- # to fail because some subdirectory failed.
- $output_rules .= "tags: TAGS\nTAGS:\n\n";
- }
- }
-
- # Handle multilib support.
- sub handle_multilib
- {
- if ($seen_multilib && $relative_dir eq '.')
- {
- $output_rules .= &file_contents ('multilib');
- }
- }
-
-
- # $BOOLEAN
- # &for_dist_common ($A, $B)
- # -------------------------
- # Subroutine for &handle_dist: sort files to dist.
- #
- # We put README first because it then becomes easier to make a
- # Usenet-compliant shar file (in these, README must be first).
- #
- # FIXME: do more ordering of files here.
- sub for_dist_common
- {
- return 0
- if $a eq $b;
- return -1
- if $a eq 'README';
- return 1
- if $b eq 'README';
- return $a cmp $b;
- }
-
-
- # handle_dist ($MAKEFILE)
- # -----------------------
- # Handle 'dist' target.
- sub handle_dist
- {
- my ($makefile) = @_;
-
- # `make dist' isn't used in a Cygnus-style tree.
- # Omit the rules so that people don't try to use them.
- return if $cygnus_mode;
-
- # Look for common files that should be included in distribution.
- # If the aux dir is set, and it does not have a Makefile.am, then
- # we check for these files there as well.
- my $check_aux = 0;
- my $auxdir = '';
- if ($relative_dir eq '.'
- && $config_aux_dir_set_in_configure_in)
- {
- ($auxdir = $config_aux_dir) =~ s,^\$\(top_srcdir\)/,,;
- if (! &is_make_dir ($auxdir))
- {
- $check_aux = 1;
- }
- }
- foreach my $cfile (@common_files)
- {
- if (-f ($relative_dir . "/" . $cfile)
- # The file might be absent, but if it can be built it's ok.
- || exists $targets{$cfile})
- {
- &push_dist_common ($cfile);
- }
-
- # Don't use `elsif' here because a file might meaningfully
- # appear in both directories.
- if ($check_aux && -f ($auxdir . '/' . $cfile))
- {
- &push_dist_common ($auxdir . '/' . $cfile);
- }
- }
-
- # We might copy elements from $configure_dist_common to
- # %dist_common if we think we need to. If the file appears in our
- # directory, we would have discovered it already, so we don't
- # check that. But if the file is in a subdir without a Makefile,
- # we want to distribute it here if we are doing `.'. Ugly!
- if ($relative_dir eq '.')
- {
- foreach my $file (split (' ' , $configure_dist_common))
- {
- push_dist_common ($file)
- unless is_make_dir (dirname ($file));
- }
- }
-
-
-
- # Files to distributed. Don't use &variable_value_as_list_recursive
- # as it recursively expands `$(dist_pkgdata_DATA)' etc.
- check_variable_defined_unconditionally ('DIST_COMMON');
- my @dist_common = split (' ', variable_value ('DIST_COMMON', 'TRUE'));
- @dist_common = uniq (sort for_dist_common (@dist_common));
- pretty_print ('DIST_COMMON = ', "\t", @dist_common);
-
- # Now that we've processed DIST_COMMON, disallow further attempts
- # to set it.
- $handle_dist_run = 1;
-
- # Scan EXTRA_DIST to see if we need to distribute anything from a
- # subdir. If so, add it to the list. I didn't want to do this
- # originally, but there were so many requests that I finally
- # relented.
- if (variable_defined ('EXTRA_DIST'))
- {
- # FIXME: This should be fixed to work with conditionals. That
- # will require only making the entries in %dist_dirs under the
- # appropriate condition. This is meaningful if the nature of
- # the distribution should depend upon the configure options
- # used.
- foreach (&variable_value_as_list_recursive ('EXTRA_DIST', ''))
- {
- next if /^\@.*\@$/;
- next unless s,/+[^/]+$,,;
- $dist_dirs{$_} = 1
- unless $_ eq '.';
- }
- }
-
- # We have to check DIST_COMMON for extra directories in case the
- # user put a source used in AC_OUTPUT into a subdir.
- foreach (&variable_value_as_list_recursive ('DIST_COMMON', 'all'))
- {
- next if /^\@.*\@$/;
- next unless s,/+[^/]+$,,;
- $dist_dirs{$_} = 1
- unless $_ eq '.';
- }
-
- # Rule to check whether a distribution is viable.
- my %transform = ('DISTCHECK-HOOK' => &target_defined ('distcheck-hook'),
- 'GETTEXT' => $seen_gettext);
-
- # Prepend $(distdir) to each directory given.
- my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
- $transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
-
- # If we have SUBDIRS, create all dist subdirectories and do
- # recursive build.
- if (variable_defined ('SUBDIRS'))
- {
- # If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
- # to all possible directories, and use it. If DIST_SUBDIRS is
- # defined, just use it.
- my $dist_subdir_name;
- # Note that we check DIST_SUBDIRS first on purpose. At least
- # one project uses so many conditional subdirectories that
- # calling variable_conditionally_defined on SUBDIRS will cause
- # automake to grow to 150Mb. Sigh.
- if (variable_defined ('DIST_SUBDIRS')
- || variable_conditionally_defined ('SUBDIRS'))
- {
- $dist_subdir_name = 'DIST_SUBDIRS';
- if (! variable_defined ('DIST_SUBDIRS'))
- {
- define_pretty_variable
- ('DIST_SUBDIRS', '',
- uniq (&variable_value_as_list_recursive ('SUBDIRS', 'all')));
- }
- }
- else
- {
- $dist_subdir_name = 'SUBDIRS';
- # We always define this because that is what `distclean'
- # wants.
- define_pretty_variable ('DIST_SUBDIRS', '', '$(SUBDIRS)');
- }
-
- $transform{'DIST_SUBDIR_NAME'} = $dist_subdir_name;
- }
-
- # If the target `dist-hook' exists, make sure it is run. This
- # allows users to do random weird things to the distribution
- # before it is packaged up.
- push (@dist_targets, 'dist-hook')
- if &target_defined ('dist-hook');
- $transform{'DIST-TARGETS'} = join(' ', @dist_targets);
-
- # Defining $(DISTDIR).
- $transform{'DISTDIR'} = !variable_defined('distdir');
- $transform{'TOP_DISTDIR'} = backname ($relative_dir);
-
- $output_rules .= &file_contents ('distdir', %transform);
- }
-
-
- # Handle subdirectories.
- sub handle_subdirs
- {
- return
- unless variable_defined ('SUBDIRS');
-
- # Make sure each directory mentioned in SUBDIRS actually exists.
- foreach my $dir (&variable_value_as_list_recursive ('SUBDIRS', 'all'))
- {
- # Skip directories substituted by configure.
- next if $dir =~ /^\@.*\@$/;
-
- if (! -d $am_relative_dir . '/' . $dir)
- {
- macro_error ('SUBDIRS',
- "required directory $am_relative_dir/$dir does not exist");
- next;
- }
-
- macro_error ('SUBDIRS', "directory should not contain `/'")
- if $dir =~ /\//;
- }
-
- $output_rules .= &file_contents ('subdirs');
- variable_pretty_output ('RECURSIVE_TARGETS', 'TRUE');
- }
-
-
- # ($REGEN, @DEPENDENCIES)
- # &scan_aclocal_m4
- # ----------------
- # If aclocal.m4 creation is automated, return the list of its dependencies.
- sub scan_aclocal_m4
- {
- my $regen_aclocal = 0;
-
- return (0, ())
- unless $relative_dir eq '.';
-
- &examine_variable ('CONFIG_STATUS_DEPENDENCIES');
- &examine_variable ('CONFIGURE_DEPENDENCIES');
-
- if (-f 'aclocal.m4')
- {
- &define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4');
- &push_dist_common ('aclocal.m4');
-
- my $aclocal = new Automake::XFile "< aclocal.m4";
- my $line = $aclocal->getline;
- $regen_aclocal = $line =~ 'generated automatically by aclocal';
- }
-
- my @ac_deps = ();
-
- if (-f 'acinclude.m4')
- {
- $regen_aclocal = 1;
- push @ac_deps, 'acinclude.m4';
- }
-
- if (variable_defined ('ACLOCAL_M4_SOURCES'))
- {
- push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
- }
- elsif (variable_defined ('ACLOCAL_AMFLAGS'))
- {
- # Scan all -I directories for m4 files. These are our
- # dependencies.
- my $examine_next = 0;
- foreach my $amdir (&variable_value_as_list_recursive ('ACLOCAL_AMFLAGS', ''))
- {
- if ($examine_next)
- {
- $examine_next = 0;
- if ($amdir !~ /^\// && -d $amdir)
- {
- foreach my $ac_dep (&my_glob ($amdir . '/*.m4'))
- {
- $ac_dep =~ s/^\.\/+//;
- push (@ac_deps, $ac_dep)
- unless $ac_dep eq "aclocal.m4"
- || $ac_dep eq "acinclude.m4";
- }
- }
- }
- elsif ($amdir eq '-I')
- {
- $examine_next = 1;
- }
- }
- }
-
- # Note that it might be possible that aclocal.m4 doesn't exist but
- # should be auto-generated. This case probably isn't very
- # important.
-
- return ($regen_aclocal, @ac_deps);
- }
-
-
- # @DEPENDENCY
- # &rewrite_inputs_into_dependencies ($ADD_SRCDIR, @INPUTS)
- # --------------------------------------------------------
- # Rewrite a list of input files into a form suitable to put on a
- # dependency list. The idea is that if an input file has a directory
- # part the same as the current directory, then the directory part is
- # simply removed. But if the directory part is different, then
- # $(top_srcdir) is prepended. Among other things, this is used to
- # generate the dependency list for the output files generated by
- # AC_OUTPUT. Consider what the dependencies should look like in this
- # case:
- # AC_OUTPUT(src/out:src/in1:lib/in2)
- # The first argument, ADD_SRCDIR, is 1 if $(top_srcdir) should be added.
- # If 0 then files that require this addition will simply be ignored.
- sub rewrite_inputs_into_dependencies ($@)
- {
- my ($add_srcdir, @inputs) = @_;
- my @newinputs;
-
- foreach my $single (@inputs)
- {
- if (dirname ($single) eq $relative_dir)
- {
- push (@newinputs, basename ($single));
- }
- elsif ($add_srcdir)
- {
- push (@newinputs, '$(top_srcdir)/' . $single);
- }
- }
-
- return @newinputs;
- }
-
- # Handle remaking and configure stuff.
- # We need the name of the input file, to do proper remaking rules.
- sub handle_configure
- {
- my ($local, $input, @secondary_inputs) = @_;
-
- my $input_base = basename ($input);
- my $local_base = basename ($local);
-
- my $amfile = $input_base . '.am';
- # We know we can always add '.in' because it really should be an
- # error if the .in was missing originally.
- my $infile = '$(srcdir)/' . $input_base . '.in';
- my $colon_infile = '';
- if ($local ne $input || @secondary_inputs)
- {
- $colon_infile = ':' . $input . '.in';
- }
- $colon_infile .= ':' . join (':', @secondary_inputs)
- if @secondary_inputs;
-
- my @rewritten = rewrite_inputs_into_dependencies (1, @secondary_inputs);
-
- my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4 ();
-
- $output_rules .=
- &file_contents ('configure',
- ('MAKEFILE'
- => $local_base,
- 'MAKEFILE-DEPS'
- => "@rewritten",
- 'CONFIG-MAKEFILE'
- => ((($relative_dir eq '.') ? '$@' : '$(subdir)/$@')
- . $colon_infile),
- 'MAKEFILE-IN'
- => $infile,
- 'MAKEFILE-IN-DEPS'
- => "@include_stack",
- 'MAKEFILE-AM'
- => $amfile,
- 'STRICTNESS'
- => $cygnus_mode ? 'cygnus' : $strictness_name,
- 'USE-DEPS'
- => $cmdline_use_dependencies ? '' : ' --ignore-deps',
- 'MAKEFILE-AM-SOURCES'
- => "$input$colon_infile",
- 'REGEN-ACLOCAL-M4'
- => $regen_aclocal_m4,
- 'ACLOCAL_M4_DEPS'
- => "@aclocal_m4_deps"));
-
- if ($relative_dir eq '.')
- {
- &push_dist_common ('acconfig.h')
- if -f 'acconfig.h';
- }
-
- # If we have a configure header, require it.
- my $hdr_index = 0;
- my @distclean_config;
- foreach my $spec (@config_headers)
- {
- $hdr_index += 1;
- # $CONFIG_H_PATH: config.h from top level.
- my ($config_h_path, @ins) = split_config_file_spec ($spec);
- my $config_h_dir = dirname ($config_h_path);
-
- # If the header is in the current directory we want to build
- # the header here. Otherwise, if we're at the topmost
- # directory and the header's directory doesn't have a
- # Makefile, then we also want to build the header.
- if ($relative_dir eq $config_h_dir
- || ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
- {
- my ($cn_sans_dir, $stamp_dir);
- if ($relative_dir eq $config_h_dir)
- {
- $cn_sans_dir = basename ($config_h_path);
- $stamp_dir = '';
- }
- else
- {
- $cn_sans_dir = $config_h_path;
- if ($config_h_dir eq '.')
- {
- $stamp_dir = '';
- }
- else
- {
- $stamp_dir = $config_h_dir . '/';
- }
- }
-
- # Compute relative path from directory holding output
- # header to directory holding input header. FIXME:
- # doesn't handle case where we have multiple inputs.
- my $in0_sans_dir;
- if (dirname ($ins[0]) eq $relative_dir)
- {
- $in0_sans_dir = basename ($ins[0]);
- }
- else
- {
- $in0_sans_dir = backname ($relative_dir) . '/' . $ins[0];
- }
-
- require_file ($config_header_location, FOREIGN, $in0_sans_dir);
-
- # Header defined and in this directory.
- my @files;
- if (-f $config_h_path . '.top')
- {
- push (@files, "$cn_sans_dir.top");
- }
- if (-f $config_h_path . '.bot')
- {
- push (@files, "$cn_sans_dir.bot");
- }
-
- push_dist_common (@files);
-
- # For now, acconfig.h can only appear in the top srcdir.
- if (-f 'acconfig.h')
- {
- push (@files, '$(top_srcdir)/acconfig.h');
- }
-
- my $stamp = "${stamp_dir}stamp-h${hdr_index}";
- $output_rules .=
- file_contents ('remake-hdr',
- ('FILES' => "@files",
- 'CONFIG_H' => $cn_sans_dir,
- 'CONFIG_HIN' => $in0_sans_dir,
- 'CONFIG_H_PATH' => $config_h_path,
- 'STAMP' => "$stamp"));
-
- push @distclean_config, $cn_sans_dir, $stamp;
- }
- }
-
- $output_rules .= file_contents ('clean-hdr',
- ('FILES' => "@distclean_config"))
- if @distclean_config;
-
- # Set location of mkinstalldirs.
- define_variable ('mkinstalldirs',
- ('$(SHELL) ' . $config_aux_dir . '/mkinstalldirs'));
-
- macro_error ('CONFIG_HEADER',
- "`CONFIG_HEADER' is an anachronism; now determined from `$configure_ac'")
- if variable_defined ('CONFIG_HEADER');
-
- my @config_h;
- foreach my $spec (@config_headers)
- {
- my ($out, @ins) = split_config_file_spec ($spec);
- # Generate CONFIG_HEADER define.
- if ($relative_dir eq dirname ($out))
- {
- push @config_h, basename ($out);
- }
- else
- {
- push @config_h, "\$(top_builddir)/$out";
- }
- }
- define_variable ("CONFIG_HEADER", "@config_h")
- if @config_h;
-
- # Now look for other files in this directory which must be remade
- # by config.status, and generate rules for them.
- my @actual_other_files = ();
- foreach my $lfile (@other_input_files)
- {
- my $file;
- my @inputs;
- if ($lfile =~ /^([^:]*):(.*)$/)
- {
- # This is the ":" syntax of AC_OUTPUT.
- $file = $1;
- @inputs = split (':', $2);
- }
- else
- {
- # Normal usage.
- $file = $lfile;
- @inputs = $file . '.in';
- }
-
- # Automake files should not be stored in here, but in %MAKE_LIST.
- prog_error ("$lfile in \@other_input_files")
- if -f $file . '.am';
-
- my $local = basename ($file);
-
- # Make sure the dist directory for each input file is created.
- # We only have to do this at the topmost level though. This
- # is a bit ugly but it easier than spreading out the logic,
- # especially in cases like AC_OUTPUT(foo/out:bar/in), where
- # there is no Makefile in bar/.
- if ($relative_dir eq '.')
- {
- foreach (@inputs)
- {
- $dist_dirs{dirname ($_)} = 1;
- }
- }
-
- # We skip files that aren't in this directory. However, if
- # the file's directory does not have a Makefile, and we are
- # currently doing `.', then we create a rule to rebuild the
- # file in the subdir.
- my $fd = dirname ($file);
- if ($fd ne $relative_dir)
- {
- if ($relative_dir eq '.' && ! &is_make_dir ($fd))
- {
- $local = $file;
- }
- else
- {
- next;
- }
- }
-
- my @rewritten_inputs = rewrite_inputs_into_dependencies (1, @inputs);
- $output_rules .= ($local . ': '
- . '$(top_builddir)/config.status '
- . "@rewritten_inputs\n"
- . "\t"
- . 'cd $(top_builddir) && '
- . '$(SHELL) ./config.status '
- . ($relative_dir eq '.' ? '' : '$(subdir)/')
- . '$@'
- . "\n");
- push (@actual_other_files, $local);
-
- # Require all input files.
- require_file ($ac_config_files_location, FOREIGN,
- rewrite_inputs_into_dependencies (0, @inputs));
- }
-
- # These files get removed by "make clean".
- define_pretty_variable ('CONFIG_CLEAN_FILES', '', @actual_other_files);
- }
-
- # Handle C headers.
- sub handle_headers
- {
- my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
- 'oldinclude', 'pkginclude',
- 'noinst', 'check');
- foreach (@r)
- {
- next unless /\..*$/;
- &saw_extension ($&);
- }
- }
-
- sub handle_gettext
- {
- return if ! $seen_gettext || $relative_dir ne '.';
-
- if (! variable_defined ('SUBDIRS'))
- {
- conf_error ("AM_GNU_GETTEXT used but SUBDIRS not defined");
- return;
- }
-
- my @subdirs = &variable_value_as_list_recursive ('SUBDIRS', 'all');
- macro_error ('SUBDIRS',
- "AM_GNU_GETTEXT used but `po' not in SUBDIRS")
- if ! grep ($_ eq 'po', @subdirs);
-
- # intl/ is not required when AM_GNU_GETTEXT is called with
- # the `external' option.
- macro_error ('SUBDIRS',
- "AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
- if (! $seen_gettext_external
- && ! grep ($_ eq 'intl', @subdirs));
-
- require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
- }
-
- # Handle footer elements.
- sub handle_footer
- {
- # NOTE don't use define_pretty_variable here, because
- # $contents{...} is already defined.
- $output_vars .= 'SOURCES = ' . variable_value ('SOURCES') . "\n\n"
- if variable_value ('SOURCES');
-
-
- target_error ('.SUFFIXES',
- "use variable `SUFFIXES', not target `.SUFFIXES'")
- if target_defined ('.SUFFIXES');
-
- # Note: AIX 4.1 /bin/make will fail if any suffix rule appears
- # before .SUFFIXES. So we make sure that .SUFFIXES appears before
- # anything else, by sticking it right after the default: target.
- $output_header .= ".SUFFIXES:\n";
- if (@suffixes || variable_defined ('SUFFIXES'))
- {
- # Make sure suffixes has unique elements. Sort them to ensure
- # the output remains consistent. However, $(SUFFIXES) is
- # always at the start of the list, unsorted. This is done
- # because make will choose rules depending on the ordering of
- # suffixes, and this lets the user have some control. Push
- # actual suffixes, and not $(SUFFIXES). Some versions of make
- # do not like variable substitutions on the .SUFFIXES line.
- my @user_suffixes = (variable_defined ('SUFFIXES')
- ? &variable_value_as_list_recursive ('SUFFIXES', '')
- : ());
-
- my %suffixes = map { $_ => 1 } @suffixes;
- delete @suffixes{@user_suffixes};
-
- $output_header .= (".SUFFIXES: "
- . join (' ', @user_suffixes, sort keys %suffixes)
- . "\n");
- }
-
- $output_trailer .= file_contents ('footer');
- }
-
- # Deal with installdirs target.
- sub handle_installdirs ()
- {
- $output_rules .=
- &file_contents ('install',
- ('_am_installdirs'
- => variable_value ('_am_installdirs') || '',
- 'installdirs-local'
- => (target_defined ('installdirs-local')
- ? ' installdirs-local' : '')));
- }
-
-
- # Deal with all and all-am.
- sub handle_all ($)
- {
- my ($makefile) = @_;
-
- # Output `all-am'.
-
- # Put this at the beginning for the sake of non-GNU makes. This
- # is still wrong if these makes can run parallel jobs. But it is
- # right enough.
- unshift (@all, basename ($makefile));
-
- foreach my $spec (@config_headers)
- {
- my ($out, @ins) = split_config_file_spec ($spec);
- push (@all, basename ($out))
- if dirname ($out) eq $relative_dir;
- }
-
- # Install `all' hooks.
- if (&target_defined ("all-local"))
- {
- push (@all, "all-local");
- &depend ('.PHONY', "all-local");
- }
-
- &pretty_print_rule ("all-am:", "\t\t", @all);
- &depend ('.PHONY', 'all-am', 'all');
-
-
- # Output `all'.
-
- my @local_headers = ();
- push @local_headers, '$(BUILT_SOURCES)'
- if variable_defined ('BUILT_SOURCES');
- foreach my $spec (@config_headers)
- {
- my ($out, @ins) = split_config_file_spec ($spec);
- push @local_headers, basename ($out)
- if dirname ($out) eq $relative_dir;
- }
-
- if (@local_headers)
- {
- # We need to make sure config.h is built before we recurse.
- # We also want to make sure that built sources are built
- # before any ordinary `all' targets are run. We can't do this
- # by changing the order of dependencies to the "all" because
- # that breaks when using parallel makes. Instead we handle
- # things explicitly.
- $output_all .= ("all: @local_headers"
- . "\n\t"
- . '$(MAKE) $(AM_MAKEFLAGS) '
- . (variable_defined ('SUBDIRS')
- ? 'all-recursive' : 'all-am')
- . "\n\n");
- }
- else
- {
- $output_all .= "all: " . (variable_defined ('SUBDIRS')
- ? 'all-recursive' : 'all-am') . "\n\n";
- }
- }
-
-
- # Handle check merge target specially.
- sub do_check_merge_target
- {
- if (&target_defined ('check-local'))
- {
- # User defined local form of target. So include it.
- push (@check_tests, 'check-local');
- &depend ('.PHONY', 'check-local');
- }
-
- # In --cygnus mode, check doesn't depend on all.
- if ($cygnus_mode)
- {
- # Just run the local check rules.
- &pretty_print_rule ('check-am:', "\t\t", @check);
- }
- else
- {
- # The check target must depend on the local equivalent of
- # `all', to ensure all the primary targets are built. Then it
- # must build the local check rules.
- $output_rules .= "check-am: all-am\n";
- &pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
- @check)
- if @check;
- }
- &pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
- @check_tests)
- if @check_tests;
-
- &depend ('.PHONY', 'check', 'check-am');
- $output_rules .= ("check: "
- . (variable_defined ('SUBDIRS')
- ? 'check-recursive' : 'check-am')
- . "\n");
- }
-
- # Handle all 'clean' targets.
- sub handle_clean
- {
- my %transform;
-
- # Don't include `MAINTAINER'; it is handled specially below.
- foreach my $name ('MOSTLY', '', 'DIST')
- {
- $transform{"${name}CLEAN"} = variable_defined ("${name}CLEANFILES");
- }
-
- # Built sources are automatically removed by maintainer-clean.
- push (@maintainer_clean_files, '$(BUILT_SOURCES)')
- if variable_defined ('BUILT_SOURCES');
- push (@maintainer_clean_files, '$(MAINTAINERCLEANFILES)')
- if variable_defined ('MAINTAINERCLEANFILES');
-
- $output_rules .= &file_contents ('clean',
- (%transform,
- 'MCFILES'
- # Join with no space to avoid
- # spurious `test -z' success at
- # runtime.
- => join ('', @maintainer_clean_files),
- 'MFILES'
- # A space is required in the join here.
- => "@maintainer_clean_files"));
- }
-
-
- # &depend ($CATEGORY, @DEPENDENDEES)
- # ----------------------------------
- # The target $CATEGORY depends on @DEPENDENDEES.
- sub depend
- {
- my ($category, @dependendees) = @_;
- {
- push (@{$dependencies{$category}}, @dependendees);
- }
- }
-
-
- # &target_cmp ($A, $B)
- # --------------------
- # Subroutine for &handle_factored_dependencies to let `.PHONY' be last.
- sub target_cmp
- {
- return 0
- if $a eq $b;
- return -1
- if $b eq '.PHONY';
- return 1
- if $a eq '.PHONY';
- return $a cmp $b;
- }
-
-
- # &handle_factored_dependencies ()
- # --------------------------------
- # Handle everything related to gathered targets.
- sub handle_factored_dependencies
- {
- # Reject bad hooks.
- foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
- 'uninstall-exec-local', 'uninstall-exec-hook')
- {
- if (&target_defined ($utarg))
- {
- my $x = $utarg;
- $x =~ s/(data|exec)-//;
- target_error ($utarg, "use `$x', not `$utarg'");
- }
- }
-
- if (&target_defined ('install-local'))
- {
- target_error ('install-local',
- "use `install-data-local' or `install-exec-local', "
- . "not `install-local'");
- }
-
- if (!defined $options{'no-installinfo'}
- && &target_defined ('install-info-local'))
- {
- target_error ('install-info-local',
- "`install-info-local' target defined but "
- . "`no-installinfo' option not in use");
- }
-
- # Install the -local hooks.
- foreach (keys %dependencies)
- {
- # Hooks are installed on the -am targets.
- s/-am$// or next;
- if (&target_defined ("$_-local"))
- {
- depend ("$_-am", "$_-local");
- &depend ('.PHONY', "$_-local");
- }
- }
-
- # Install the -hook hooks.
- # FIXME: Why not be as liberal as we are with -local hooks?
- foreach ('install-exec', 'install-data', 'uninstall')
- {
- if (&target_defined ("$_-hook"))
- {
- $actions{"$_-am"} .=
- ("\t\@\$(NORMAL_INSTALL)\n"
- . "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
- }
- }
-
- # All the required targets are phony.
- depend ('.PHONY', keys %required_targets);
-
- # Actually output gathered targets.
- foreach (sort target_cmp keys %dependencies)
- {
- # If there is nothing about this guy, skip it.
- next
- unless (@{$dependencies{$_}}
- || $actions{$_}
- || $required_targets{$_});
- &pretty_print_rule ("$_:", "\t",
- uniq (sort @{$dependencies{$_}}));
- $output_rules .= $actions{$_}
- if defined $actions{$_};
- $output_rules .= "\n";
- }
- }
-
-
- # &handle_tests_dejagnu ()
- # ------------------------
- sub handle_tests_dejagnu
- {
- push (@check_tests, 'check-DEJAGNU');
- $output_rules .= file_contents ('dejagnu');
- }
-
-
- # Handle TESTS variable and other checks.
- sub handle_tests
- {
- if (defined $options{'dejagnu'})
- {
- &handle_tests_dejagnu;
- }
- else
- {
- foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
- {
- macro_error ($c,
- "`$c' defined but `dejagnu' not in `AUTOMAKE_OPTIONS'")
- if variable_defined ($c);
- }
- }
-
- if (variable_defined ('TESTS'))
- {
- push (@check_tests, 'check-TESTS');
- $output_rules .= &file_contents ('check');
- }
- }
-
- # Handle Emacs Lisp.
- sub handle_emacs_lisp
- {
- my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
- 'lisp', 'noinst');
-
- return if ! @elfiles;
-
- # Generate .elc files.
- my @elcfiles = map { $_ . 'c' } @elfiles;
- define_pretty_variable ('ELCFILES', '', @elcfiles);
-
- push (@all, '$(ELCFILES)');
-
- &am_error ("`lisp_LISP' defined but `AM_PATH_LISPDIR' not in `$configure_ac'")
- if ! $am_lispdir_location && variable_defined ('lisp_LISP');
-
- require_conf_file ($am_lispdir_location, FOREIGN, 'elisp-comp');
- &define_variable ('elisp_comp', $config_aux_dir . '/elisp-comp');
- }
-
- # Handle Python
- sub handle_python
- {
- my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
- 'python', 'noinst');
- return if ! @pyfiles;
-
- # Found some python.
- &am_error ("`python_PYTHON' defined but `AM_PATH_PYTHON' not in `$configure_ac'")
- if ! $pythondir_location && variable_defined ('python_PYTHON');
-
- require_conf_file ($pythondir_location, FOREIGN, 'py-compile');
- &define_variable ('py_compile', $config_aux_dir . '/py-compile');
- }
-
- # Handle Java.
- sub handle_java
- {
- my @sourcelist = &am_install_var ('-candist',
- 'java', 'JAVA',
- 'java', 'noinst', 'check');
- return if ! @sourcelist;
-
- my @prefix = am_primary_prefixes ('JAVA', 1,
- 'java', 'noinst', 'check');
-
- my $dir;
- foreach my $curs (@prefix)
- {
- next
- if $curs eq 'EXTRA';
-
- macro_error ($curs . '_JAVA',
- "multiple _JAVA primaries in use")
- if defined $dir;
- $dir = $curs;
- }
-
-
- push (@all, 'class' . $dir . '.stamp');
- }
-
-
- # Handle some of the minor options.
- sub handle_minor_options
- {
- if (defined $options{'readme-alpha'})
- {
- if ($relative_dir eq '.')
- {
- if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
- {
- # FIXME: allow real filename.
- file_error ($package_version_location,
- "version `$package_version' doesn't follow Gnits standards");
- }
- elsif (defined $1 && -f 'README-alpha')
- {
- # This means we have an alpha release. See
- # GNITS_VERSION_PATTERN for details.
- require_file_with_macro ('AUTOMAKE_OPTIONS',
- FOREIGN, 'README-alpha');
- }
- }
- }
- }
-
- ################################################################
-
- # ($OUTPUT, @INPUTS)
- # &split_config_file_spec ($SPEC)
- # -------------------------------
- # Decode the Autoconf syntax for config files (files, headers, links
- # etc.).
- sub split_config_file_spec ($)
- {
- my ($spec) = @_;
- my ($output, @inputs) = split (/:/, $spec);
-
- push @inputs, "$output.in"
- unless @inputs;
-
- return ($output, @inputs);
- }
-
-
- my %make_list;
-
- # &scan_autoconf_config_files ($CONFIG-FILES)
- # -------------------------------------------
- # Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
- # (or AC_OUTPUT).
- sub scan_autoconf_config_files
- {
- my ($config_files) = @_;
- # Look at potential Makefile.am's.
- foreach (split ' ', $config_files)
- {
- # Must skip empty string for Perl 4.
- next if $_ eq "\\" || $_ eq '';
-
- # Handle $local:$input syntax. Note that we ignore
- # every input file past the first, though we keep
- # those around for later.
- my ($local, $input, @rest) = split (/:/);
- if (! $input)
- {
- $input = $local;
- }
- else
- {
- # FIXME: should be error if .in is missing.
- $input =~ s/\.in$//;
- }
-
- if (-f $input . '.am')
- {
- # We have a file that automake should generate.
- $make_list{$input} = join (':', ($local, @rest));
- }
- else
- {
- # We have a file that automake should cause to be
- # rebuilt, but shouldn't generate itself.
- push (@other_input_files, $_);
- }
- }
- }
-
-
- # &scan_autoconf_traces ($FILENAME)
- # ---------------------------------
- # FIXME: For the time being, we don't care about the FILENAME.
- sub scan_autoconf_traces ($)
- {
- my ($filename) = @_;
-
- my @traced = qw(AC_CANONICAL_HOST
- AC_CANONICAL_SYSTEM
- AC_CONFIG_AUX_DIR
- AC_CONFIG_FILES
- AC_INIT
- AC_LIBSOURCE
- AC_PROG_LEX
- AC_PROG_LIBTOOL AM_PROG_LIBTOOL
- AC_SUBST
- AM_AUTOMAKE_VERSION
- AM_CONDITIONAL
- AM_CONFIG_HEADER
- AM_C_PROTOTYPES
- AM_GNU_GETTEXT
- AM_INIT_AUTOMAKE
- AM_MAINTAINER_MODE
- AM_PATH_LISPDIR
- AM_PATH_PYTHON
- AM_PROG_CC_C_O);
-
- my $traces = "$ENV{amtraces} ";
-
- # Use a separator unlikely to be used, not `:', the default, which
- # has a precise meaning for AC_CONFIG_FILES and so on.
- $traces .= join (' ',
- map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' } @traced);
-
- my $tracefh = new Automake::XFile ("$traces |");
- verbose "reading $traces";
-
- while ($_ = $tracefh->getline)
- {
- chomp;
- my ($here, @args) = split /::/;
- my $macro = $args[0];
-
- # Alphabetical ordering please.
- if ($macro eq 'AC_CANONICAL_HOST')
- {
- if (! $seen_canonical)
- {
- $seen_canonical = AC_CANONICAL_HOST;
- $canonical_location = $here;
- };
- }
- elsif ($macro eq 'AC_CANONICAL_SYSTEM')
- {
- $seen_canonical = AC_CANONICAL_SYSTEM;
- $canonical_location = $here;
- }
- elsif ($macro eq 'AC_CONFIG_AUX_DIR')
- {
- @config_aux_path = $args[1];
- $config_aux_dir_set_in_configure_in = 1;
- }
- elsif ($macro eq 'AC_CONFIG_FILES')
- {
- # Look at potential Makefile.am's.
- $ac_config_files_location = $here;
- &scan_autoconf_config_files ($args[1]);
- }
- elsif ($macro eq 'AC_INIT')
- {
- if (defined $args[2])
- {
- $package_version = $args[2];
- $package_version_location = $here;
- }
- }
- elsif ($macro eq 'AC_LIBSOURCE')
- {
- $libsources{$args[1]} = $here;
- }
- elsif ($macro =~ /^A(C|M)_PROG_LIBTOOL$/)
- {
- $seen_libtool = $here;
- }
- elsif ($macro eq 'AC_PROG_LEX')
- {
- $seen_prog_lex = $here;
- }
- elsif ($macro eq 'AC_SUBST')
- {
- # Just check for alphanumeric in AC_SUBST. If you do
- # AC_SUBST(5), then too bad.
- $configure_vars{$args[1]} = $here
- if $args[1] =~ /^\w+$/;
- }
- elsif ($macro eq 'AM_AUTOMAKE_VERSION')
- {
- file_error ($here,
- "version mismatch. This is Automake $VERSION,\n" .
- "but the definition used by this AM_INIT_AUTOMAKE\n" .
- "comes from Automake $args[1]. You should recreate\n" .
- "aclocal.m4 with aclocal and run automake again.\n")
- if ($VERSION ne $args[1]);
-
- $seen_automake_version = 1;
- }
- elsif ($macro eq 'AM_CONDITIONAL')
- {
- $configure_cond{$args[1]} = $here;
- }
- elsif ($macro eq 'AM_CONFIG_HEADER')
- {
- $config_header_location = $here;
- push @config_headers, split (' ', $args[1]);
- }
- elsif ($macro eq 'AM_C_PROTOTYPES')
- {
- $am_c_prototypes = $here;
- }
- elsif ($macro eq 'AM_GNU_GETTEXT')
- {
- $seen_gettext = $here;
- $ac_gettext_location = $here;
- $seen_gettext_external = grep ($_ eq 'external', @args);
- }
- elsif ($macro eq 'AM_INIT_AUTOMAKE')
- {
- $seen_init_automake = $here;
- if (defined $args[2])
- {
- $package_version = $args[2];
- $package_version_location = $here;
- }
- elsif (defined $args[1])
- {
- $global_options = $args[1];
- }
- }
- elsif ($macro eq 'AM_MAINTAINER_MODE')
- {
- $seen_maint_mode = $here;
- }
- elsif ($macro eq 'AM_PATH_LISPDIR')
- {
- $am_lispdir_location = $here;
- }
- elsif ($macro eq 'AM_PATH_PYTHON')
- {
- $pythondir_location = $here;
- }
- elsif ($macro eq 'AM_PROG_CC_C_O')
- {
- $seen_cc_c_o = $here;
- }
- }
- }
-
-
- # &scan_one_autoconf_file ($FILENAME)
- # -----------------------------------
- # Scan one file for interesting things. Subroutine of
- # &scan_autoconf_files.
- sub scan_one_autoconf_file
- {
- my ($filename) = @_;
-
- # Some macros already provide the right traces to enable generic
- # code and specific arguments, instead of dedicated code. But
- # currently we don't handle traces. Rewrite these dedicated
- # macros handling into the generic macro invocation, and let our
- # generic case handle them.
-
- my %generalize =
- (
- 'AC_FUNC_ALLOCA' => 'AC_LIBSOURCES([alloca.c])',
- 'AC_FUNC_GETLOADAVG' => 'AC_LIBSOURCES([getloadavg.c])',
- 'AC_FUNC_MEMCMP' => 'AC_LIBSOURCES([memcmp.c])',
- 'AC_STRUCT_ST_BLOCKS' => 'AC_LIBSOURCES([fileblocks.c])',
- 'A[CM]_REPLACE_GNU_GETOPT' => 'AC_LIBSOURCES([getopt.c, getopt1.c])',
- 'A[CM]_FUNC_STRTOD' => 'AC_LIBSOURCES([strtod.c])',
- 'AM_WITH_REGEX' => 'AC_LIBSOURCES([rx.c, rx.h, regex.c, regex.h])',
- 'AC_FUNC_MKTIME' => 'AC_LIBSOURCES([mktime.c])',
- 'A[CM]_FUNC_ERROR_AT_LINE' => 'AC_LIBSOURCES([error.c, error.h])',
- 'A[CM]_FUNC_OBSTACK' => 'AC_LIBSOURCES([obstack.c, obstack.h])',
- );
-
- my $configfh = new Automake::XFile ("< $filename");
- verbose "reading $filename";
-
- my ($in_ac_output, $in_ac_replace) = (0, 0);
- while ($_ = $configfh->getline)
- {
- # Remove comments from current line.
- s/\bdnl\b.*$//;
- s/\#.*$//;
-
- # Skip macro definitions. Otherwise we might be confused into
- # thinking that a macro that was only defined was actually
- # used.
- next if /AC_DEFUN/;
-
- # Follow includes. This is a weirdness commonly in use at
- # Cygnus and hopefully nowhere else.
- if (/\b(?:m4_)?s?include\((.*)\)/ && -f $1)
- {
- # $_ being local, if we don't preserve it, when coming
- # back we will have $_ undefined, which is bad for the
- # the rest of this routine.
- my $underscore = $_;
- &scan_one_autoconf_file (unquote_m4_arg ($1));
- $_ = $underscore;
- }
-
- for my $generalize (keys %generalize)
- {
- s/\b$generalize\b/$generalize{$generalize}/g;
- }
-
-
- my $here = "$filename:$.";
-
- # Populate libobjs array.
- if (/LIBOBJS="(.*)\s+\$LIBOBJS"/
- || /LIBOBJS="\$LIBOBJS\s+(.*)"/)
- {
- foreach my $libobj_iter (split (' ', $1))
- {
- if ($libobj_iter =~ /^(.*)\.o(bj)?$/
- || $libobj_iter =~ /^(.*)\.\$ac_objext$/
- || $libobj_iter =~ /^(.*)\.\$\{ac_objext\}$/)
- {
- $libsources{$1 . '.c'} = $here;
- }
- }
- }
- elsif (/AC_LIBOBJ\(([^)]+)\)/)
- {
- $libsources{unquote_m4_arg ($1) . ".c"} = $here;
- }
- elsif (/AC_LIBSOURCE\(([^)]+)\)/)
- {
- $libsources{&unquote_m4_arg ($1)} = $here;
- }
- elsif (/AC_LIBSOURCES\(([^)]+)\)/)
- {
- foreach my $lc_iter (split (/[, ]+/, &unquote_m4_arg ($1)))
- {
- $libsources{$lc_iter} = $here;
- }
- }
-
- if (! $in_ac_replace && s/AC_REPLACE_FUNCS\s*\(\[?//)
- {
- $in_ac_replace = 1;
- }
- if ($in_ac_replace)
- {
- $in_ac_replace = 0 if s/[\]\)].*$//;
- # Remove trailing backslash.
- s/\\$//;
- foreach (split)
- {
- # Need to skip empty elements for Perl 4.
- next if $_ eq '';
- $libsources{$_ . '.c'} = $here;
- }
- }
-
- if (/$obsolete_rx/o)
- {
- my $hint = '';
- if ($obsolete_macros{$1} ne '')
- {
- $hint = '; ' . $obsolete_macros{$1};
- }
- file_error ($here, "`$1' is obsolete$hint");
- }
-
- # Process the AC_OUTPUT and AC_CONFIG_FILES macros.
- if (! $in_ac_output && s/(AC_(OUTPUT|CONFIG_FILES))\s*\(\[?//)
- {
- $in_ac_output = $1;
- $ac_config_files_location = $here;
- }
- if ($in_ac_output)
- {
- my $closing = 0;
- if (s/[\]\),].*$//)
- {
- $in_ac_output = 0;
- $closing = 1;
- }
-
- # Look at potential Makefile.am's.
- &scan_autoconf_config_files ($_);
-
- if ($closing
- && scalar keys %make_list == 0
- && @other_input_files == 0)
- {
- file_error ($ac_config_files_location,
- "no files mentioned in `$in_ac_output'");
- exit 1;
- }
- }
-
- if (/$AC_CONFIG_AUX_DIR_PATTERN/o)
- {
- @config_aux_path = &unquote_m4_arg ($1);
- $config_aux_dir_set_in_configure_in = $here;
- }
-
- # Check for ansi2knr.
- $am_c_prototypes = $here if /AM_C_PROTOTYPES/;
-
- # Check for `-c -o' code.
- $seen_cc_c_o = $here if /AM_PROG_CC_C_O/;
-
- # Check for NLS support.
- if (/\bAM_GNU_GETTEXT\b/)
- {
- $seen_gettext = $here;
- $ac_gettext_location = $here;
- $seen_gettext_external = 1
- if /\bAM_GNU_GETTEXT\([^\)]*\bexternal\b/;
- }
-
- # Handle configuration headers. A config header of `[$1]'
- # means we are actually scanning AM_CONFIG_HEADER from
- # aclocal.m4. Same thing with a leading underscore.
- if (/(?<!_)A([CM])_CONFIG_HEADERS?\s*\((.*)\)/
- && $2 ne '[$1]')
- {
- file_error ($here,
- "`automake requires `AM_CONFIG_HEADER', not `AC_CONFIG_HEADER'")
- if $1 eq 'C';
-
- $config_header_location = $here;
- push @config_headers, split (' ', unquote_m4_arg ($2));
- }
-
- # Handle AC_CANONICAL_*. Always allow upgrading to
- # AC_CANONICAL_SYSTEM, but never downgrading.
- if (/AC_CANONICAL_HOST/ || /AC_CYGWIN/ || /AC_EMXOS2/ || /AC_MINGW32/)
- {
- if (! $seen_canonical)
- {
- $seen_canonical = AC_CANONICAL_HOST;
- $canonical_location = $here;
- }
- }
- if (/AC_CANONICAL_SYSTEM/)
- {
- $seen_canonical = AC_CANONICAL_SYSTEM;
- $canonical_location = $here;
- }
-
- # If using X, include some extra variable definitions. NOTE
- # we don't want to force these into CFLAGS or anything,
- # because not all programs will necessarily use X.
- if (/AC_PATH_XTRA/)
- {
- foreach my $var (qw(X_CFLAGS X_LIBS X_EXTRA_LIBS X_PRE_LIBS))
- {
- $configure_vars{$var} = $here;
- }
- }
-
- # AM_INIT_AUTOMAKE with any number of argument
- if (/AM_INIT_AUTOMAKE/)
- {
- $seen_init_automake = $here;
- }
-
- # AC_INIT or AM_INIT_AUTOMAKE with two arguments
- if (/$AC_INIT_PATTERN/o || /$AM_INIT_AUTOMAKE_PATTERN/o)
- {
- if ($1 =~ /$AM_PACKAGE_VERSION_PATTERN/o)
- {
- $package_version = $1;
- $package_version_location = $here;
- }
- }
-
- # AM_INIT_AUTOMAKE with one argument.
- if (/AM_INIT_AUTOMAKE\(([^),]+)\)/)
- {
- $global_options = &unquote_m4_arg ($1);
- }
-
- if (/AM_AUTOMAKE_VERSION\(([^)]+)\)/)
- {
- my $vers = &unquote_m4_arg ($1);
- file_error ($here,
- "version mismatch. This is Automake $VERSION, " .
- "but $filename\nwas generated for Automake $vers. " .
- "You should recreate\n$filename with aclocal and " .
- "run automake again.\n")
- if ($VERSION ne $vers);
-
- $seen_automake_version = 1;
- }
-
- if (/AM_PROG_LEX/)
- {
- $configure_vars{'LEX'} = $here;
- $configure_vars{'LEX_OUTPUT_ROOT'} = $here;
- $configure_vars{'LEXLIB'} = $here;
- $seen_prog_lex = $here;
- }
- if (/AC_PROG_LEX/ && $filename =~ /configure\.(ac|in)$/)
- {
- $configure_vars{'LEX'} = $here;
- $configure_vars{'LEX_OUTPUT_ROOT'} = $here;
- $configure_vars{'LEXLIB'} = $here;
- $seen_prog_lex = $here;
- file_warning ($here,
- "automake requires `AM_PROG_LEX', not `AC_PROG_LEX'");
- }
-
- if (/AC_PROG_(F77|YACC|RANLIB|CC|CXXCPP|CXX|LEX|AWK|CPP|LN_S)/)
- {
- $configure_vars{$1} = $here;
- }
- if (/$AC_CHECK_PATTERN/o)
- {
- $configure_vars{$3} = $here;
- }
- if (/$AM_MISSING_PATTERN/o
- && $1 ne 'ACLOCAL'
- && $1 ne 'AUTOCONF'
- && $1 ne 'AUTOMAKE'
- && $1 ne 'AUTOHEADER'
- # AM_INIT_AUTOMAKE is AM_MISSING_PROG'ing MAKEINFO. But
- # we handle it elsewhere.
- && $1 ne 'MAKEINFO')
- {
- $configure_vars{$1} = $here;
- }
-
- # Explicitly avoid ANSI2KNR -- we AC_SUBST that in protos.m4,
- # but later define it elsewhere. This is pretty hacky. We
- # also explicitly avoid INSTALL_SCRIPT and some other
- # variables because they are defined in header-vars.am.
- # AMDEPBACKSLASH might be subst'd by `\', which certainly would
- # not be appreciated by Make.
- if (/$AC_SUBST_PATTERN/o
- && $1 ne 'ANSI2KNR'
- && $1 ne 'INSTALL_SCRIPT'
- && $1 ne 'INSTALL_DATA'
- && $1 ne 'AMDEPBACKSLASH')
- {
- $configure_vars{$1} = $here;
- }
-
- if (/AM_MAINTAINER_MODE/)
- {
- $seen_maint_mode = $here;
- $configure_cond{'MAINTAINER_MODE'} = $here;
- }
-
- $am_lispdir_location = $here if /AM_PATH_LISPDIR/;
-
- if (/AM_PATH_PYTHON/)
- {
- $pythondir_location = $here;
- $configure_vars{'pythondir'} = $here;
- $configure_vars{'PYTHON'} = $here;
- }
-
- if (/A(C|M)_PROG_LIBTOOL/)
- {
- # We're not ready for this yet. People still use a
- # libtool with no AC_PROG_LIBTOOL. Once that is the
- # dominant version we can reenable this code -- but next
- # time by mentioning the macro in %obsolete_macros, both
- # here and in aclocal.in.
-
- # if (/AM_PROG_LIBTOOL/)
- # {
- # file_warning ($here, "`AM_PROG_LIBTOOL' is obsolete, use `AC_PROG_LIBTOOL' instead");
- # }
- $seen_libtool = $here;
- $configure_vars{'LIBTOOL'} = $here;
- $configure_vars{'RANLIB'} = $here;
- $configure_vars{'CC'} = $here;
- # AC_PROG_LIBTOOL runs AC_CANONICAL_HOST. Make sure we
- # never downgrade (if we've seen AC_CANONICAL_SYSTEM).
- $seen_canonical = AC_CANONICAL_HOST if ! $seen_canonical;
- }
-
- $seen_multilib = $here if (/AM_ENABLE_MULTILIB/);
-
- if (/$AM_CONDITIONAL_PATTERN/o)
- {
- $configure_cond{$1} = $here;
- }
-
- # Check for Fortran 77 intrinsic and run-time libraries.
- if (/AC_F77_LIBRARY_LDFLAGS/)
- {
- $configure_vars{'FLIBS'} = $here;
- }
- }
- }
-
-
- # &scan_autoconf_files ()
- # -----------------------
- # Check whether we use `configure.ac' or `configure.in'.
- # Scan it (and possibly `aclocal.m4') for interesting things.
- # We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
- sub scan_autoconf_files
- {
- # Reinitialize libsources here. This isn't really necessary,
- # since we currently assume there is only one configure.ac. But
- # that won't always be the case.
- %libsources = ();
-
- $configure_ac = find_configure_ac;
- die "$me: `configure.ac' or `configure.in' is required\n"
- if !$configure_ac;
-
- if (defined $ENV{'amtraces'})
- {
- print STDERR "$me: Autoconf traces is an experimental feature\n";
- print STDERR "$me: use at your own risks\n";
-
- scan_autoconf_traces ($configure_ac);
- }
- else
- {
- scan_one_autoconf_file ($configure_ac);
- scan_one_autoconf_file ('aclocal.m4')
- if -f 'aclocal.m4';
- }
-
- # Set input and output files if not specified by user.
- if (! @input_files)
- {
- @input_files = sort keys %make_list;
- %output_files = %make_list;
- }
-
- @configure_input_files = sort keys %make_list;
-
- conf_error ("`AM_INIT_AUTOMAKE' must be used")
- if ! $seen_init_automake;
-
- if (! $seen_automake_version)
- {
- if (-f 'aclocal.m4')
- {
- file_error ($seen_init_automake || $me,
- "your implementation of AM_INIT_AUTOMAKE comes from " .
- "an\nold Automake version. You should recreate " .
- "aclocal.m4\nwith aclocal and run automake again.\n");
- }
- else
- {
- file_error ($seen_init_automake || $me,
- "no proper implementation of AM_INIT_AUTOMAKE was " .
- "found,\nprobably because aclocal.m4 is missing...\n" .
- "You should run aclocal to create this file, then\n" .
- "run automake again.\n");
- }
- }
-
- # Look for some files we need. Always check for these. This
- # check must be done for every run, even those where we are only
- # looking at a subdir Makefile. We must set relative_dir so that
- # the file-finding machinery works.
- # FIXME: Is this broken because it needs dynamic scopes.
- # My tests seems to show it's not the case.
- $relative_dir = '.';
- require_conf_file ($configure_ac, FOREIGN,
- 'install-sh', 'mkinstalldirs', 'missing');
- am_error ("`install.sh' is an anachronism; use `install-sh' instead")
- if -f $config_aux_path[0] . '/install.sh';
-
- require_conf_file ($pythondir_location, FOREIGN, 'py-compile')
- if $pythondir_location;
-
- # Preserve dist_common for later.
- $configure_dist_common = variable_value ('DIST_COMMON', 'TRUE') || '';
- }
-
- ################################################################
-
- # Set up for Cygnus mode.
- sub check_cygnus
- {
- return unless $cygnus_mode;
-
- &set_strictness ('foreign');
- $options{'no-installinfo'} = 1;
- $options{'no-dependencies'} = 1;
- $use_dependencies = 0;
-
- conf_error ("`AM_MAINTAINER_MODE' required when --cygnus specified")
- if !$seen_maint_mode;
- }
-
- # Do any extra checking for GNU standards.
- sub check_gnu_standards
- {
- if ($relative_dir eq '.')
- {
- # In top level (or only) directory.
- require_file ("$am_file.am", GNU,
- qw(INSTALL NEWS README COPYING AUTHORS ChangeLog));
- }
-
- if ($strictness >= GNU
- && defined $options{'no-installman'})
- {
- macro_error ('AUTOMAKE_OPTIONS',
- "option `no-installman' disallowed by GNU standards");
- }
-
- if ($strictness >= GNU
- && defined $options{'no-installinfo'})
- {
- macro_error ('AUTOMAKE_OPTIONS',
- "option `no-installinfo' disallowed by GNU standards");
- }
- }
-
- # Do any extra checking for GNITS standards.
- sub check_gnits_standards
- {
- if ($relative_dir eq '.')
- {
- # In top level (or only) directory.
- require_file ("$am_file.am", GNITS, 'THANKS');
- }
- }
-
- ################################################################
- #
- # Functions to handle files of each language.
-
- # Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
- # simple formula: Return value is $LANG_SUBDIR if the resulting object
- # file should be in a subdir if the source file is, $LANG_PROCESS if
- # file is to be dealt with, $LANG_IGNORE otherwise.
-
- # Much of the actual processing is handled in
- # handle_single_transform_list. These functions exist so that
- # auxiliary information can be recorded for a later cleanup pass.
- # Note that the calls to these functions are computed, so don't bother
- # searching for their precise names in the source.
-
- # This is just a convenience function that can be used to determine
- # when a subdir object should be used.
- sub lang_sub_obj
- {
- return defined $options{'subdir-objects'} ? $LANG_SUBDIR : $LANG_PROCESS;
- }
-
- # Rewrite a single C source file.
- sub lang_c_rewrite
- {
- my ($directory, $base, $ext) = @_;
-
- if (defined $options{'ansi2knr'} && $base =~ /_$/)
- {
- # FIXME: include line number in error.
- am_error ("C source file `$base.c' would be deleted by ansi2knr rules");
- }
-
- my $r = $LANG_PROCESS;
- if (defined $options{'subdir-objects'})
- {
- $r = $LANG_SUBDIR;
- $base = $directory . '/' . $base
- unless $directory eq '.' || $directory eq '';
-
- if (! $seen_cc_c_o)
- {
- # Only give error once.
- $seen_cc_c_o = 1;
- # FIXME: line number.
- am_error ("C objects in subdir but `AM_PROG_CC_C_O' not in `$configure_ac'");
- }
-
- require_conf_file ("$am_file.am", FOREIGN, 'compile');
-
- # In this case we already have the directory information, so
- # don't add it again.
- $de_ansi_files{$base} = '';
- }
- else
- {
- $de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
- ? ''
- : "$directory/");
- }
-
- return $r;
- }
-
- # Rewrite a single C++ source file.
- sub lang_cxx_rewrite
- {
- return &lang_sub_obj;
- }
-
- # Rewrite a single header file.
- sub lang_header_rewrite
- {
- # Header files are simply ignored.
- return $LANG_IGNORE;
- }
-
- # Rewrite a single yacc file.
- sub lang_yacc_rewrite
- {
- my ($directory, $base, $ext) = @_;
-
- my $r = &lang_sub_obj;
- (my $newext = $ext) =~ tr/y/c/;
- return ($r, $newext);
- }
-
- # Rewrite a single yacc++ file.
- sub lang_yaccxx_rewrite
- {
- my ($directory, $base, $ext) = @_;
-
- my $r = &lang_sub_obj;
- (my $newext = $ext) =~ tr/y/c/;
- return ($r, $newext);
- }
-
- # Rewrite a single lex file.
- sub lang_lex_rewrite
- {
- my ($directory, $base, $ext) = @_;
-
- my $r = &lang_sub_obj;
- (my $newext = $ext) =~ tr/l/c/;
- return ($r, $newext);
- }
-
- # Rewrite a single lex++ file.
- sub lang_lexxx_rewrite
- {
- my ($directory, $base, $ext) = @_;
-
- my $r = &lang_sub_obj;
- (my $newext = $ext) =~ tr/l/c/;
- return ($r, $newext);
- }
-
- # Rewrite a single assembly file.
- sub lang_asm_rewrite
- {
- return &lang_sub_obj;
- }
-
- # Rewrite a single Fortran 77 file.
- sub lang_f77_rewrite
- {
- return $LANG_PROCESS;
- }
-
- # Rewrite a single preprocessed Fortran 77 file.
- sub lang_ppf77_rewrite
- {
- return $LANG_PROCESS;
- }
-
- # Rewrite a single ratfor file.
- sub lang_ratfor_rewrite
- {
- return $LANG_PROCESS;
- }
-
- # Rewrite a single Objective C file.
- sub lang_objc_rewrite
- {
- return &lang_sub_obj;
- }
-
- # Rewrite a single Java file.
- sub lang_java_rewrite
- {
- return $LANG_SUBDIR;
- }
-
- # The lang_X_finish functions are called after all source file
- # processing is done. Each should handle defining rules for the
- # language, etc. A finish function is only called if a source file of
- # the appropriate type has been seen.
-
- sub lang_c_finish
- {
- # Push all libobjs files onto de_ansi_files. We actually only
- # push files which exist in the current directory, and which are
- # genuine source files.
- foreach my $file (keys %libsources)
- {
- if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
- {
- $de_ansi_files{$1} = (($relative_dir eq '.' || $relative_dir eq '')
- ? ''
- : "$relative_dir/");
- }
- }
-
- if (defined $options{'ansi2knr'} && keys %de_ansi_files)
- {
- # Make all _.c files depend on their corresponding .c files.
- my @objects;
- foreach my $base (sort keys %de_ansi_files)
- {
- # Each _.c file must depend on ansi2knr; otherwise it
- # might be used in a parallel build before it is built.
- # We need to support files in the srcdir and in the build
- # dir (because these files might be auto-generated. But
- # we can't use $< -- some makes only define $< during a
- # suffix rule.
- my $ansfile = $de_ansi_files{$base} . $base . '.c';
- $output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
- . '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
- . '`if test -f $(srcdir)/' . $ansfile
- . '; then echo $(srcdir)/' . $ansfile
- . '; else echo ' . $ansfile . '; fi` '
- . "| sed 's/^# \\([0-9]\\)/#line \\1/' "
- . '| $(ANSI2KNR) > ' . $base . "_.c"
- # If ansi2knr fails then we shouldn't
- # create the _.c file
- . " || rm -f ${base}_.c\n");
- push (@objects, $base . '_.$(OBJEXT)');
- push (@objects, $base . '_.lo')
- if $seen_libtool;
- }
-
- # Make all _.o (and _.lo) files depend on ansi2knr.
- # Use a sneaky little hack to make it print nicely.
- &pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
- }
- }
-
- # This is a yacc helper which is called whenever we have decided to
- # compile a yacc file.
- sub lang_yacc_target_hook
- {
- my ($self, $aggregate, $output, $input) = @_;
-
- my $flag = $aggregate . "_YFLAGS";
- if ((variable_defined ($flag)
- && &variable_value ($flag) =~ /$DASH_D_PATTERN/o)
- || (variable_defined ('YFLAGS')
- && &variable_value ('YFLAGS') =~ /$DASH_D_PATTERN/o))
- {
- (my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
- my $header = $output_base . '.h';
-
- # Found a `-d' that applies to the compilation of this file.
- # Add a dependency for the generated header file, and arrange
- # for that file to be included in the distribution.
- # FIXME: this fails for `nodist_*_SOURCES'.
- $output_rules .= ("${header}: $output\n"
- # Recover from removal of $header
- . "\t\@if test ! -f \$@; then \\\n"
- . "\t rm -f $output; \\\n"
- . "\t \$(MAKE) $output; \\\n"
- . "\telse :; fi\n");
- &push_dist_common ($header);
- # If the files are built in the build directory, then we want
- # to remove them with `make clean'. If they are in srcdir
- # they shouldn't be touched. However, we can't determine this
- # statically, and the GNU rules say that yacc/lex output files
- # should be removed by maintainer-clean. So that's what we
- # do.
- push (@maintainer_clean_files, $header);
- }
- # Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
- # See the comment above for $HEADER.
- push (@maintainer_clean_files, $output);
- }
-
- # This is a lex helper which is called whenever we have decided to
- # compile a lex file.
- sub lang_lex_target_hook
- {
- my ($self, $aggregate, $output, $input) = @_;
- # If the files are built in the build directory, then we want to
- # remove them with `make clean'. If they are in srcdir they
- # shouldn't be touched. However, we can't determine this
- # statically, and the GNU rules say that yacc/lex output files
- # should be removed by maintainer-clean. So that's what we do.
- push (@maintainer_clean_files, $output);
- }
-
- # This is a helper for both lex and yacc.
- sub yacc_lex_finish_helper
- {
- return if defined $language_scratch{'lex-yacc-done'};
- $language_scratch{'lex-yacc-done'} = 1;
-
- # If there is more than one distinct yacc (resp lex) source file
- # in a given directory, then the `ylwrap' program is required to
- # allow parallel builds to work correctly. FIXME: for now, no
- # line number.
- require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
- if ($config_aux_dir_set_in_configure_in)
- {
- &define_variable ('YLWRAP', $config_aux_dir . "/ylwrap");
- }
- else
- {
- &define_variable ('YLWRAP', '$(top_srcdir)/ylwrap');
- }
- }
-
- sub lang_yacc_finish
- {
- return if defined $language_scratch{'yacc-done'};
- $language_scratch{'yacc-done'} = 1;
-
- macro_error ('YACCFLAGS',
- "`YACCFLAGS' obsolete; use `YFLAGS' instead")
- if variable_defined ('YACCFLAGS');
-
- if (count_files_for_language ('yacc') > 1)
- {
- &yacc_lex_finish_helper;
- }
- }
-
-
- sub lang_lex_finish
- {
- return if defined $language_scratch{'lex-done'};
- $language_scratch{'lex-done'} = 1;
-
- am_error ("lex source seen but `AM_PROG_LEX' not in `$configure_ac'")
- unless $seen_prog_lex;
-
- if (count_files_for_language ('lex') > 1)
- {
- &yacc_lex_finish_helper;
- }
- }
-
-
- # Given a hash table of linker names, pick the name that has the most
- # precedence. This is lame, but something has to have global
- # knowledge in order to eliminate the conflict. Add more linkers as
- # required.
- sub resolve_linker
- {
- my (%linkers) = @_;
-
- foreach my $l (qw(GCJLINK CXXLINK F77LINK OBJCLINK))
- {
- return $l if defined $linkers{$l};
- }
- return 'LINK';
- }
-
- # Called to indicate that an extension was used.
- sub saw_extension
- {
- my ($ext) = @_;
- if (! defined $extension_seen{$ext})
- {
- $extension_seen{$ext} = 1;
- }
- else
- {
- ++$extension_seen{$ext};
- }
- }
-
- # Return the number of files seen for a given language. Knows about
- # special cases we care about. FIXME: this is hideous. We need
- # something that involves real language objects. For instance yacc
- # and yaccxx could both derive from a common yacc class which would
- # know about the strange ylwrap requirement. (Or better yet we could
- # just not support legacy yacc!)
- sub count_files_for_language
- {
- my ($name) = @_;
-
- my @names;
- if ($name eq 'yacc' || $name eq 'yaccxx')
- {
- @names = ('yacc', 'yaccxx');
- }
- elsif ($name eq 'lex' || $name eq 'lexxx')
- {
- @names = ('lex', 'lexxx');
- }
- else
- {
- @names = ($name);
- }
-
- my $r = 0;
- foreach $name (@names)
- {
- my $lang = $languages{$name};
- foreach my $ext (@{$lang->extensions})
- {
- $r += $extension_seen{$ext}
- if defined $extension_seen{$ext};
- }
- }
-
- return $r
- }
-
- # Called to ask whether source files have been seen . If HEADERS is 1,
- # headers can be included.
- sub saw_sources_p
- {
- my ($headers) = @_;
-
- # count all the sources
- my $count = 0;
- foreach my $val (values %extension_seen)
- {
- $count += $val;
- }
-
- if (!$headers)
- {
- $count -= count_files_for_language ('header');
- }
-
- return $count > 0;
- }
-
-
- # register_language (%ATTRIBUTE)
- # ------------------------------
- # Register a single language.
- # Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
- sub register_language (%)
- {
- my (%option) = @_;
-
- # Set the defaults.
- $option{'ansi'} = 0
- unless defined $option{'ansi'};
- $option{'autodep'} = 'no'
- unless defined $option{'autodep'};
- $option{'linker'} = ''
- unless defined $option{'linker'};
- $option{'define_flag'} = 1
- unless defined $option{'define_flag'};
-
- my $lang = new Language (%option);
-
- # Fill indexes.
- grep ($extension_map{$_} = $lang->name, @{$lang->extensions});
- $languages{$lang->name} = $lang;
-
- # Update the pattern of known extensions.
- accept_extensions (@{$lang->extensions});
- }
-
- # derive_suffix ($EXT, $OBJ)
- # --------------------------
- # This function is used to find a path from a user-specified suffix $EXT
- # to $OBJ or to some other suffix we recognize internally, eg `cc'.
- sub derive_suffix ($$)
- {
- my ($source_ext, $obj) = @_;
-
- while (! $extension_map{$source_ext}
- && $source_ext ne $obj
- && defined $suffix_rules{$source_ext})
- {
- $source_ext = $suffix_rules{$source_ext};
- }
-
- return $source_ext;
- }
-
-
- ################################################################
-
- # Pretty-print something. HEAD is what should be printed at the
- # beginning of the first line, FILL is what should be printed at the
- # beginning of every subsequent line.
- sub pretty_print_internal
- {
- my ($head, $fill, @values) = @_;
-
- my $column = length ($head);
- my $result = $head;
-
- # Fill length is number of characters. However, each Tab
- # character counts for eight. So we count the number of Tabs and
- # multiply by 7.
- my $fill_length = length ($fill);
- $fill_length += 7 * ($fill =~ tr/\t/\t/d);
-
- foreach (@values)
- {
- # "71" because we also print a space.
- if ($column + length ($_) > 71)
- {
- $result .= " \\\n" . $fill;
- $column = $fill_length;
- }
- $result .= ' ' if $result =~ /\S\z/;
- $result .= $_;
- $column += length ($_) + 1;
- }
-
- $result .= "\n";
- return $result;
- }
-
- # Pretty-print something and append to output_vars.
- sub pretty_print
- {
- $output_vars .= &pretty_print_internal (@_);
- }
-
- # Pretty-print something and append to output_rules.
- sub pretty_print_rule
- {
- $output_rules .= &pretty_print_internal (@_);
- }
-
-
- ################################################################
-
-
- # $STRING
- # &conditional_string(@COND-STACK)
- # --------------------------------
- # Build a string which denotes the conditional in @COND-STACK. Some
- # simplifications are done: `TRUE' entries are elided, and any `FALSE'
- # entry results in a return of `FALSE'.
- sub conditional_string
- {
- my (@stack) = @_;
-
- if (grep (/^FALSE$/, @stack))
- {
- return 'FALSE';
- }
- else
- {
- return join (' ', uniq sort grep (!/^TRUE$/, @stack));
- }
- }
-
-
- # $BOOLEAN
- # &conditional_true_when ($COND, $WHEN)
- # -------------------------------------
- # See if a conditional is true. Both arguments are conditional
- # strings. This returns true if the first conditional is true when
- # the second conditional is true.
- # For instance with $COND = `BAR FOO', and $WHEN = `BAR BAZ FOO',
- # obviously return 1, and 0 when, for instance, $WHEN = `FOO'.
- sub conditional_true_when ($$)
- {
- my ($cond, $when) = @_;
-
- # Make a hash holding all the values from $WHEN.
- my %cond_vals = map { $_ => 1 } split (' ', $when);
-
- # Check each component of $cond, which looks `COND1 COND2'.
- foreach my $comp (split (' ', $cond))
- {
- # TRUE is always true.
- next if $comp eq 'TRUE';
- return 0 if ! defined $cond_vals{$comp};
- }
-
- return 1;
- }
-
-
- # $BOOLEAN
- # &conditional_is_redundant ($COND, @WHENS)
- # ----------------------------------------
- # Determine whether $COND is redundant with respect to @WHENS.
- #
- # Returns true if $COND is true for any of the conditions in @WHENS.
- #
- # If there are no @WHENS, then behave as if @WHENS contained a single empty
- # condition.
- sub conditional_is_redundant ($@)
- {
- my ($cond, @whens) = @_;
-
- if (@whens == 0)
- {
- return 1 if conditional_true_when ($cond, "");
- }
- else
- {
- foreach my $when (@whens)
- {
- return 1 if conditional_true_when ($cond, $when);
- }
- }
-
- return 0;
- }
-
-
- # $NEGATION
- # condition_negate ($COND)
- # ------------------------
- sub condition_negate ($)
- {
- my ($cond) = @_;
-
- $cond =~ s/TRUE$/TRUEO/;
- $cond =~ s/FALSE$/TRUE/;
- $cond =~ s/TRUEO$/FALSE/;
-
- return $cond;
- }
-
-
- # Compare condition names.
- # Issue them in alphabetical order, foo_TRUE before foo_FALSE.
- sub by_condition
- {
- # Be careful we might be comparing `' or `#'.
- $a =~ /^(.*)_(TRUE|FALSE)$/;
- my ($aname, $abool) = ($1 || '', $2 || '');
- $b =~ /^(.*)_(TRUE|FALSE)$/;
- my ($bname, $bbool) = ($1 || '', $2 || '');
- return ($aname cmp $bname
- # Don't bother with IFs, given that TRUE is after FALSE
- # just cmp in the reverse order.
- || $bbool cmp $abool
- # Just in case...
- || $a cmp $b);
- }
-
-
- # &make_condition (@CONDITIONS)
- # -----------------------------
- # Transform a list of conditions (themselves can be an internal list
- # of conditions, e.g., @CONDITIONS = ('cond1 cond2', 'cond3')) into a
- # Make conditional (a pattern for AC_SUBST).
- # Correctly returns the empty string when there are no conditions.
- sub make_condition
- {
- my $res = conditional_string (@_);
-
- # There are no conditions.
- if ($res eq '')
- {
- # Nothing to do.
- }
- # It's impossible.
- elsif ($res eq 'FALSE')
- {
- $res = '#';
- }
- # Build it.
- else
- {
- $res = '@' . $res . '@';
- $res =~ s/ /@@/g;
- }
-
- return $res;
- }
-
-
-
- ## ------------------------------ ##
- ## Handling the condition stack. ##
- ## ------------------------------ ##
-
-
- # $COND_STRING
- # cond_stack_if ($NEGATE, $COND, $WHERE)
- # --------------------------------------
- sub cond_stack_if ($$$)
- {
- my ($negate, $cond, $where) = @_;
-
- file_error ($where, "$cond does not appear in AM_CONDITIONAL")
- if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
-
- $cond = "${cond}_TRUE"
- unless $cond =~ /^TRUE|FALSE$/;
- $cond = condition_negate ($cond)
- if $negate;
-
- push (@cond_stack, $cond);
-
- return conditional_string (@cond_stack);
- }
-
-
- # $COND_STRING
- # cond_stack_else ($NEGATE, $COND, $WHERE)
- # ----------------------------------------
- sub cond_stack_else ($$$)
- {
- my ($negate, $cond, $where) = @_;
-
- if (! @cond_stack)
- {
- file_error ($where, "else without if");
- return;
- }
-
- $cond_stack[$#cond_stack] = condition_negate ($cond_stack[$#cond_stack]);
-
- # If $COND is given, check against it.
- if (defined $cond)
- {
- $cond = "${cond}_TRUE"
- unless $cond =~ /^TRUE|FALSE$/;
- $cond = condition_negate ($cond)
- if $negate;
-
- file_error ($where,
- "else reminder ($negate$cond) incompatible with "
- . "current conditional: $cond_stack[$#cond_stack]")
- if $cond_stack[$#cond_stack] ne $cond;
- }
-
- return conditional_string (@cond_stack);
- }
-
-
- # $COND_STRING
- # cond_stack_endif ($NEGATE, $COND, $WHERE)
- # -----------------------------------------
- sub cond_stack_endif ($$$)
- {
- my ($negate, $cond, $where) = @_;
- my $old_cond;
-
- if (! @cond_stack)
- {
- file_error ($where, "endif without if: $negate$cond");
- return;
- }
-
-
- # If $COND is given, check against it.
- if (defined $cond)
- {
- $cond = "${cond}_TRUE"
- unless $cond =~ /^TRUE|FALSE$/;
- $cond = condition_negate ($cond)
- if $negate;
-
- file_error ($where,
- "endif reminder ($negate$cond) incompatible with "
- . "current conditional: $cond_stack[$#cond_stack]")
- if $cond_stack[$#cond_stack] ne $cond;
- }
-
- pop @cond_stack;
-
- return conditional_string (@cond_stack);
- }
-
-
-
-
-
- ## ------------------------ ##
- ## Handling the variables. ##
- ## ------------------------ ##
-
-
- # check_ambiguous_conditional ($VAR, $COND)
- # -----------------------------------------
- # Check for an ambiguous conditional. This is called when a variable
- # is being defined conditionally. If we already know about a
- # definition that is true under the same conditions, then we have an
- # ambiguity.
- sub check_ambiguous_conditional ($$)
- {
- my ($var, $cond) = @_;
- my $message = conditional_ambiguous_p ($var, $cond);
- if ($message ne '')
- {
- macro_error ($var, $message);
- macro_dump ($var);
- }
- }
-
- # $STRING
- # conditional_ambiguous_p ($VAR, $COND)
- # -------------------------------------
- # Check for an ambiguous conditional. Return an error message if we
- # have one, the empty string otherwise.
- sub conditional_ambiguous_p ($$)
- {
- my ($var, $cond) = @_;
- foreach my $vcond (keys %{$var_value{$var}})
- {
- my $message;
- if ($vcond eq $cond)
- {
- return "$var multiply defined in condition $cond";
- }
- elsif (&conditional_true_when ($vcond, $cond))
- {
- return ("$var was already defined in condition $vcond, "
- . "which implies condition $cond");
- }
- elsif (&conditional_true_when ($cond, $vcond))
- {
- return ("$var was already defined in condition $vcond, "
- . "which is implied by condition $cond");
- }
- }
-
- return '';
- }
-
-
- # ¯o_define($VAR, $VAR_IS_AM, $TYPE, $COND, $VALUE, $WHERE)
- # -------------------------------------------------------------
- # The $VAR can go from Automake to user, but not the converse.
- sub macro_define ($$$$$$)
- {
- my ($var, $var_is_am, $type, $cond, $value, $where) = @_;
-
- file_error ($where, "bad macro name `$var'")
- if $var !~ /$MACRO_PATTERN/o;
-
- $cond ||= 'TRUE';
-
- # An Automake variable must be consistently defined with the same
- # sign by Automake. A user variable must be set by either `=' or
- # `:=', and later promoted to `+='.
- if ($var_is_am)
- {
- if (defined $var_type{$var} && $var_type{$var} ne $type)
- {
- file_error ($where,
- ("$var was set with `$var_type{$var}=' "
- . "and is now set with `$type='"));
- }
- }
- else
- {
- if (!defined $var_type{$var} && $type eq '+')
- {
- file_error ($where, "$var must be set with `=' before using `+='");
- }
- }
- $var_type{$var} = $type;
-
- # When adding, since we rewrite, don't try to preserve the
- # Automake continuation backslashes.
- $value =~ s/\\$//mg
- if $type eq '+' && $var_is_am;
-
- # Differentiate the first assignment (including with `+=').
- if ($type eq '+' && defined $var_value{$var}{$cond})
- {
- if (chomp $var_value{$var}{$cond})
- {
- # Insert a backslash before a trailing newline.
- $var_value{$var}{$cond} .= "\\\n";
- }
- elsif ($var_value{$var}{$cond})
- {
- # Insert a separator.
- $var_value{$var}{$cond} .= ' ';
- }
- $var_value{$var}{$cond} .= $value;
- }
- else
- {
- # The first assignment to a macro sets its location. Ideally I
- # suppose we would associate line numbers with random bits of text.
- # FIXME: We sometimes redefine some variables, but we want to keep
- # the original location. More subs are needed to handle
- # properly variables. Once this done, remove this hack.
- $var_location{$var} = $where
- unless defined $var_location{$var};
-
- # If Automake tries to override a value specified by the user,
- # just don't let it do.
- if (defined $var_value{$var}{$cond} && !$var_is_am{$var} && $var_is_am)
- {
- if ($verbose)
- {
- print STDERR "$me: refusing to override the user definition of:\n";
- macro_dump ($var);
- print STDERR "$me: with `$cond' => `$value'\n";
- }
- }
- else
- {
- # There must be no previous value unless the user is redefining
- # an Automake variable or an AC_SUBST variable for an existing
- # condition.
- check_ambiguous_conditional ($var, $cond)
- unless (($var_is_am{$var} && !$var_is_am
- || exists $configure_vars{$var})
- && exists $var_value{$var}{$cond});
-
- $var_value{$var}{$cond} = $value;
- }
- }
-
- # An Automake variable can be given to the user, but not the converse.
- if (! defined $var_is_am{$var} || !$var_is_am)
- {
- $var_is_am{$var} = $var_is_am;
- }
-
- # Call var_VAR_trigger if it's defined.
- # This hook helps to update some internal state *while*
- # parsing the file. For instance the handling of SUFFIXES
- # requires this (see var_SUFFIXES_trigger).
- my $var_trigger = "var_${var}_trigger";
- &$var_trigger($type, $value) if defined &$var_trigger;
- }
-
-
- # ¯o_delete ($VAR, [@CONDS])
- # ------------------------------
- # Forget about $VAR under the conditions @CONDS, or completely if
- # @CONDS is empty.
- sub macro_delete ($@)
- {
- my ($var, @conds) = @_;
-
- if (!@conds)
- {
- delete $var_value{$var};
- delete $var_location{$var};
- delete $var_is_am{$var};
- delete $var_comment{$var};
- delete $var_type{$var};
- }
- else
- {
- foreach my $cond (@conds)
- {
- delete $var_value{$var}{$cond};
- }
- }
- }
-
-
- # ¯o_dump ($VAR)
- # ------------------
- sub macro_dump ($)
- {
- my ($var) = @_;
-
- if (!exists $var_value{$var})
- {
- print STDERR " $var does not exist\n";
- }
- else
- {
- my $var_is_am = $var_is_am{$var} ? "Automake" : "User";
- my $where = (defined $var_location{$var}
- ? $var_location{$var} : "undefined");
- print STDERR "$var_comment{$var}"
- if defined $var_comment{$var};
- print STDERR " $var ($var_is_am, where = $where) $var_type{$var}=\n";
- print STDERR " {\n";
- foreach my $vcond (sort by_condition keys %{$var_value{$var}})
- {
- print STDERR " $vcond => $var_value{$var}{$vcond}\n";
- }
- print STDERR " }\n";
- }
- }
-
-
- # ¯os_dump ()
- # ---------------
- sub macros_dump ()
- {
- my ($var) = @_;
-
- print STDERR "%var_value =\n";
- print STDERR "{\n";
- foreach my $var (sort (keys %var_value))
- {
- macro_dump ($var);
- }
- print STDERR "}\n";
- }
-
-
- # $BOOLEAN
- # variable_defined ($VAR, [$COND])
- # ---------------------------------
- # See if a variable exists. $VAR is the variable name, and $COND is
- # the condition which we should check. If no condition is given, we
- # currently return true if the variable is defined under any
- # condition.
- sub variable_defined ($;$)
- {
- my ($var, $cond) = @_;
-
- # Unfortunately we can't just check for $var_value{VAR}{COND}
- # as this would make perl create $condition{VAR}, which we
- # don't want.
- if (!exists $var_value{$var})
- {
- macro_error ($var, "`$var' is a target; expected a variable")
- if defined $targets{$var};
- # The variable is not defined
- return 0;
- }
-
- # The variable is not defined for the given condition.
- return 0
- if $cond && !exists $var_value{$var}{$cond};
-
- # Even a var_value examination is good enough for us. FIXME:
- # really should maintain examined status on a per-condition basis.
- $content_seen{$var} = 1;
- return 1;
- }
-
-
- # $BOOLEAN
- # variable_assert ($VAR, $WHERE)
- # ------------------------------
- # Make sure a variable exists. $VAR is the variable name, and $WHERE
- # is the name of a macro which refers to $VAR.
- sub variable_assert ($$)
- {
- my ($var, $where) = @_;
-
- return 1
- if variable_defined $var;
-
- macro_error ($where, "variable `$var' not defined");
-
- return 0;
- }
-
-
- # Mark a variable as examined.
- sub examine_variable
- {
- my ($var) = @_;
- variable_defined ($var);
- }
-
-
- # &variable_conditions_recursive ($VAR)
- # -------------------------------------
- # Return the set of conditions for which a variable is defined.
-
- # If the variable is not defined conditionally, and is not defined in
- # terms of any variables which are defined conditionally, then this
- # returns the empty list.
-
- # If the variable is defined conditionally, but is not defined in
- # terms of any variables which are defined conditionally, then this
- # returns the list of conditions for which the variable is defined.
-
- # If the variable is defined in terms of any variables which are
- # defined conditionally, then this returns a full set of permutations
- # of the subvariable conditions. For example, if the variable is
- # defined in terms of a variable which is defined for COND_TRUE,
- # then this returns both COND_TRUE and COND_FALSE. This is
- # because we will need to define the variable under both conditions.
- sub variable_conditions_recursive ($)
- {
- my ($var) = @_;
-
- %vars_scanned = ();
-
- my @new_conds = variable_conditions_recursive_sub ($var, '');
- # Now we want to return all permutations of the subvariable
- # conditions.
- my %allconds = ();
- foreach my $item (@new_conds)
- {
- foreach (split (' ', $item))
- {
- s/^(.*)_(TRUE|FALSE)$/$1_TRUE/;
- $allconds{$_} = 1;
- }
- }
- @new_conds = variable_conditions_permutations (sort keys %allconds);
-
- my %uniqify;
- foreach my $cond (@new_conds)
- {
- my $reduce = variable_conditions_reduce (split (' ', $cond));
- next
- if $reduce eq 'FALSE';
- $uniqify{$cond} = 1;
- }
-
- # Note we cannot just do `return sort keys %uniqify', because this
- # function is sometimes used in a scalar context.
- my @uniq_list = sort by_condition keys %uniqify;
- return @uniq_list;
- }
-
-
- # @CONDS
- # variable_conditions ($VAR)
- # --------------------------
- # Get the list of conditions that a variable is defined with, without
- # recursing through the conditions of any subvariables.
- # Argument is $VAR: the variable to get the conditions of.
- # Returns the list of conditions.
- sub variable_conditions ($)
- {
- my ($var) = @_;
- my @conds = keys %{$var_value{$var}};
- return sort by_condition @conds;
- }
-
-
- # $BOOLEAN
- # &variable_conditionally_defined ($VAR)
- # --------------------------------------
- sub variable_conditionally_defined ($)
- {
- my ($var) = @_;
- foreach my $cond (variable_conditions_recursive ($var))
- {
- return 1
- unless $cond =~ /^TRUE|FALSE$/;
- }
- return 0;
- }
-
-
-
- # &variable_conditions_recursive_sub ($VAR, $PARENT)
- # -------------------------------------------------------
- # A subroutine of variable_conditions_recursive. This returns all the
- # conditions of $VAR, including those of any sub-variables.
- sub variable_conditions_recursive_sub
- {
- my ($var, $parent) = @_;
- my @new_conds = ();
-
- if (defined $vars_scanned{$var})
- {
- macro_error ($parent, "variable `$var' recursively defined");
- return ();
- }
- $vars_scanned{$var} = 1;
-
- my @this_conds = ();
- # Examine every condition under which $VAR is defined.
- foreach my $vcond (keys %{$var_value{$var}})
- {
- push (@this_conds, $vcond);
-
- # If $VAR references some other variable, then compute the
- # conditions for that subvariable.
- my @subvar_conds = ();
- foreach (split (' ', $var_value{$var}{$vcond}))
- {
- # If a comment seen, just leave.
- last if /^#/;
-
- # Handle variable substitutions.
- if (/^\$\{(.*)\}$/ || /^\$\((.*)\)$/)
- {
- my $varname = $1;
- if ($varname =~ /$SUBST_REF_PATTERN/o)
- {
- $varname = $1;
- }
-
-
- # Here we compute all the conditions under which the
- # subvariable is defined. Then we go through and add
- # $VCOND to each.
- my @svc = variable_conditions_recursive_sub ($varname, $var);
- foreach my $item (@svc)
- {
- my $val = conditional_string ($vcond, split (' ', $item));
- $val ||= 'TRUE';
- push (@subvar_conds, $val);
- }
- }
- }
-
- # If there are no conditional subvariables, then we want to
- # return this condition. Otherwise, we want to return the
- # permutations of the subvariables, taking into account the
- # conditions of $VAR.
- if (! @subvar_conds)
- {
- push (@new_conds, $vcond);
- }
- else
- {
- push (@new_conds, variable_conditions_reduce (@subvar_conds));
- }
- }
-
- # Unset our entry in vars_scanned. We only care about recursive
- # definitions.
- delete $vars_scanned{$var};
-
- # If we are being called on behalf of another variable, we need to
- # return all possible permutations of the conditions. We have
- # already handled everything in @this_conds along with their
- # subvariables. We now need to add any permutations that are not
- # in @this_conds.
- foreach my $this_cond (@this_conds)
- {
- my @perms =
- variable_conditions_permutations (split (' ', $this_cond));
- foreach my $perm (@perms)
- {
- my $ok = 1;
- foreach my $scan (@this_conds)
- {
- if (&conditional_true_when ($perm, $scan)
- || &conditional_true_when ($scan, $perm))
- {
- $ok = 0;
- last;
- }
- }
- next if ! $ok;
-
- # This permutation was not already handled, and is valid
- # for the parents.
- push (@new_conds, $perm);
- }
- }
-
- return @new_conds;
- }
-
-
- # Filter a list of conditionals so that only the exclusive ones are
- # retained. For example, if both `COND1_TRUE COND2_TRUE' and
- # `COND1_TRUE' are in the list, discard the latter.
- # If the list is empty, return TRUE
- sub variable_conditions_reduce
- {
- my (@conds) = @_;
- my @ret = ();
- my $cond;
- while(@conds > 0)
- {
- $cond = shift(@conds);
-
- # FALSE is absorbent.
- return 'FALSE'
- if $cond eq 'FALSE';
-
- if (!conditional_is_redundant ($cond, @ret, @conds))
- {
- push (@ret, $cond);
- }
- }
-
- return "TRUE" if @ret == 0;
- return @ret;
- }
-
- # @CONDS
- # invert_conditions (@CONDS)
- # --------------------------
- # Invert a list of conditionals. Returns a set of conditionals which
- # are never true for any of the input conditionals, and when taken
- # together with the input conditionals cover all possible cases.
- #
- # For example: invert_conditions("A_TRUE B_TRUE", "A_FALSE B_FALSE") will
- # return ("A_FALSE B_TRUE", "A_TRUE B_FALSE")
- sub invert_conditions
- {
- my (@conds) = @_;
-
- my @notconds = ();
- foreach my $cond (@conds)
- {
- foreach my $perm (variable_conditions_permutations (split(' ', $cond)))
- {
- push @notconds, $perm
- if ! conditional_is_redundant ($perm, @conds);
- }
- }
- return variable_conditions_reduce (@notconds);
- }
-
- # Return a list of permutations of a conditional string.
- sub variable_conditions_permutations
- {
- my (@comps) = @_;
- return ()
- if ! @comps;
- my $comp = shift (@comps);
- return variable_conditions_permutations (@comps)
- if $comp eq '';
- my $neg = condition_negate ($comp);
-
- my @ret;
- foreach my $sub (variable_conditions_permutations (@comps))
- {
- push (@ret, "$comp $sub");
- push (@ret, "$neg $sub");
- }
- if (! @ret)
- {
- push (@ret, $comp);
- push (@ret, $neg);
- }
- return @ret;
- }
-
-
- # $BOOL
- # &check_variable_defined_unconditionally($VAR, $PARENT)
- # ------------------------------------------------------
- # Warn if a variable is conditionally defined. This is called if we
- # are using the value of a variable.
- sub check_variable_defined_unconditionally ($$)
- {
- my ($var, $parent) = @_;
- foreach my $cond (keys %{$var_value{$var}})
- {
- next
- if $cond =~ /^TRUE|FALSE$/;
-
- if ($parent)
- {
- macro_error ($parent,
- "warning: automake does not support conditional definition of $var in $parent");
- }
- else
- {
- macro_error ($parent,
- "warning: automake does not support $var being defined conditionally");
- }
- }
- }
-
-
- # Get the TRUE value of a variable, warn if the variable is
- # conditionally defined.
- sub variable_value
- {
- my ($var) = @_;
- &check_variable_defined_unconditionally ($var);
- return $var_value{$var}{'TRUE'};
- }
-
-
- # @VALUES
- # &value_to_list ($VAR, $VAL, $COND)
- # ----------------------------------
- # Convert a variable value to a list, split as whitespace. This will
- # recursively follow $(...) and ${...} inclusions. It preserves @...@
- # substitutions.
- #
- # If COND is 'all', then all values under all conditions should be
- # returned; if COND is a particular condition (all conditions are
- # surrounded by @...@) then only the value for that condition should
- # be returned; otherwise, warn if VAR is conditionally defined.
- # SCANNED is a global hash listing whose keys are all the variables
- # already scanned; it is an error to rescan a variable.
- sub value_to_list ($$$)
- {
- my ($var, $val, $cond) = @_;
- my @result;
-
- # Strip backslashes
- $val =~ s/\\(\n|$)/ /g;
-
- foreach (split (' ', $val))
- {
- # If a comment seen, just leave.
- last if /^#/;
-
- # Handle variable substitutions.
- if (/^\$\{([^}]*)\}$/ || /^\$\(([^)]*)\)$/)
- {
- my $varname = $1;
-
- # If the user uses a losing variable name, just ignore it.
- # This isn't ideal, but people have requested it.
- next if ($varname =~ /\@.*\@/);
-
- my ($from, $to);
- my @temp_list;
- if ($varname =~ /$SUBST_REF_PATTERN/o)
- {
- $varname = $1;
- $to = $3;
- $from = quotemeta $2;
- }
-
- # Find the value.
- @temp_list =
- variable_value_as_list_recursive_worker ($1, $cond, $var);
-
- # Now rewrite the value if appropriate.
- if (defined $from)
- {
- grep (s/$from$/$to/, @temp_list);
- }
-
- push (@result, @temp_list);
- }
- else
- {
- push (@result, $_);
- }
- }
-
- return @result;
- }
-
-
- # @VALUES
- # variable_value_as_list ($VAR, $COND, $PARENT)
- # ---------------------------------------------
- # Get the value of a variable given a specified condition. without
- # recursing through any subvariables.
- # Arguments are:
- # $VAR is the variable
- # $COND is the condition. If this is not given, the value for the
- # "TRUE" condition will be returned.
- # $PARENT is the variable in which the variable is used: this is used
- # only for error messages.
- # Returns the list of conditions.
- # For example, if A is defined as "foo $(B) bar", and B is defined as
- # "baz", this will return ("foo", "$(B)", "bar")
- sub variable_value_as_list
- {
- my ($var, $cond, $parent) = @_;
- my @result;
-
- # Check defined
- return
- unless variable_assert $var, $parent;
-
- # Get value for given condition
- $cond ||= 'TRUE';
- my $onceflag;
- foreach my $vcond (keys %{$var_value{$var}})
- {
- my $val = $var_value{$var}{$vcond};
-
- if (&conditional_true_when ($vcond, $cond))
- {
- # Unless variable is not defined conditionally, there should only
- # be one value of $vcond true when $cond.
- &check_variable_defined_unconditionally ($var, $parent)
- if $onceflag;
- $onceflag = 1;
-
- # Strip backslashes
- $val =~ s/\\(\n|$)/ /g;
-
- foreach (split (' ', $val))
- {
- # If a comment seen, just leave.
- last if /^#/;
-
- push (@result, $_);
- }
- }
- }
-
- return @result;
- }
-
-
- # @VALUE
- # &variable_value_as_list_recursive_worker ($VAR, $COND, $PARENT)
- # ---------------------------------------------------------------
- # Return contents of VAR as a list, split on whitespace. This will
- # recursively follow $(...) and ${...} inclusions. It preserves @...@
- # substitutions. If COND is 'all', then all values under all
- # conditions should be returned; if COND is a particular condition
- # (all conditions are surrounded by @...@) then only the value for
- # that condition should be returned; otherwise, warn if VAR is
- # conditionally defined. If PARENT is specified, it is the name of
- # the including variable; this is only used for error reports.
- sub variable_value_as_list_recursive_worker ($$$)
- {
- my ($var, $cond, $parent) = @_;
- my @result = ();
-
- return
- unless variable_assert $var, $parent;
-
- if (defined $vars_scanned{$var})
- {
- # `vars_scanned' is a global we use to keep track of which
- # variables we've already examined.
- macro_error ($parent, "variable `$var' recursively defined");
- }
- elsif ($cond eq 'all')
- {
- $vars_scanned{$var} = 1;
- foreach my $vcond (keys %{$var_value{$var}})
- {
- my $val = $var_value{$var}{$vcond};
- push (@result, &value_to_list ($var, $val, $cond));
- }
- }
- else
- {
- $cond ||= 'TRUE';
- $vars_scanned{$var} = 1;
- my $onceflag;
- foreach my $vcond (keys %{$var_value{$var}})
- {
- my $val = $var_value{$var}{$vcond};
- if (&conditional_true_when ($vcond, $cond))
- {
- # Warn if we have an ambiguity. It's hard to know how
- # to handle this case correctly.
- &check_variable_defined_unconditionally ($var, $parent)
- if $onceflag;
- $onceflag = 1;
- push (@result, &value_to_list ($var, $val, $cond));
- }
- }
- }
-
- # Unset our entry in vars_scanned. We only care about recursive
- # definitions.
- delete $vars_scanned{$var};
-
- return @result;
- }
-
-
- # &variable_output ($VAR, [@CONDS])
- # ---------------------------------
- # Output all the values of $VAR is @COND is not specified, else only
- # that corresponding to @COND.
- sub variable_output ($@)
- {
- my ($var, @conds) = @_;
-
- @conds = keys %{$var_value{$var}}
- unless @conds;
-
- $output_vars .= $var_comment{$var}
- if defined $var_comment{$var};
-
- foreach my $cond (sort by_condition @conds)
- {
- my $val = $var_value{$var}{$cond};
- my $equals = $var_type{$var} eq ':' ? ':=' : '=';
- my $output_var = "$var $equals $val";
- $output_var =~ s/^/make_condition ($cond)/meg;
- $output_vars .= $output_var . "\n";
- }
- }
-
-
- # &variable_pretty_output ($VAR, [@CONDS])
- # ----------------------------------------
- # Likewise, but pretty, i.e., we *split* the values at spaces. Use only
- # with variables holding filenames.
- sub variable_pretty_output ($@)
- {
- my ($var, @conds) = @_;
-
- @conds = keys %{$var_value{$var}}
- unless @conds;
-
- $output_vars .= $var_comment{$var}
- if defined $var_comment{$var};
-
- foreach my $cond (sort by_condition @conds)
- {
- my $val = $var_value{$var}{$cond};
- my $equals = $var_type{$var} eq ':' ? ':=' : '=';
- my $make_condition = make_condition ($cond);
- $output_vars .= pretty_print_internal ("$make_condition$var $equals",
- "$make_condition\t",
- split (' ' , $val));
- }
- }
-
-
- # &variable_value_as_list_recursive ($VAR, $COND, $PARENT)
- # --------------------------------------------------------
- # This is just a wrapper for variable_value_as_list_recursive_worker that
- # initializes the global hash `vars_scanned'. This hash is used to
- # avoid infinite recursion.
- sub variable_value_as_list_recursive ($$@)
- {
- my ($var, $cond, $parent) = @_;
- %vars_scanned = ();
- return &variable_value_as_list_recursive_worker ($var, $cond, $parent);
- }
-
-
- # &define_pretty_variable ($VAR, $COND, @VALUE)
- # ---------------------------------------------
- # Like define_variable, but the value is a list, and the variable may
- # be defined conditionally. The second argument is the conditional
- # under which the value should be defined; this should be the empty
- # string to define the variable unconditionally. The third argument
- # is a list holding the values to use for the variable. The value is
- # pretty printed in the output file.
- sub define_pretty_variable ($$@)
- {
- my ($var, $cond, @value) = @_;
-
- # Beware that an empty $cond has a different semantics for
- # macro_define and variable_pretty_output.
- $cond ||= 'TRUE';
-
- if (! variable_defined ($var, $cond))
- {
- macro_define ($var, 1, '', $cond, "@value", undef);
- variable_pretty_output ($var, $cond || 'TRUE');
- $content_seen{$var} = 1;
- }
- }
-
-
- # define_variable ($VAR, $VALUE)
- # ------------------------------
- # Define a new user variable VAR to VALUE, but only if not already defined.
- sub define_variable ($$)
- {
- my ($var, $value) = @_;
- define_pretty_variable ($var, 'TRUE', $value);
- }
-
-
- # Like define_variable, but define a variable to be the configure
- # substitution by the same name.
- sub define_configure_variable ($)
- {
- my ($var) = @_;
- if (! variable_defined ($var, 'TRUE'))
- {
- # A macro defined via configure is a `user' macro -- we should not
- # override it.
- macro_define ($var, 0, '', 'TRUE', subst $var, $configure_vars{$var});
- variable_pretty_output ($var, 'TRUE');
- }
- }
-
-
- # define_compiler_variable ($LANG)
- # --------------------------------
- # Define a compiler variable. We also handle defining the `LT'
- # version of the command when using libtool.
- sub define_compiler_variable ($)
- {
- my ($lang) = @_;
-
- my ($var, $value) = ($lang->compiler, $lang->compile);
- &define_variable ($var, $value);
- &define_variable ("LT$var", "\$(LIBTOOL) --mode=compile $value")
- if $seen_libtool;
- }
-
-
- # define_linker_variable ($LANG)
- # ------------------------------
- # Define linker variables.
- sub define_linker_variable ($)
- {
- my ($lang) = @_;
-
- my ($var, $value) = ($lang->lder, $lang->ld);
- # CCLD = $(CC).
- &define_variable ($lang->lder, $lang->ld);
- # CCLINK = $(CCLD) blah blah...
- &define_variable ($lang->linker,
- (($seen_libtool ? '$(LIBTOOL) --mode=link ' : '')
- . $lang->link));
- }
-
- ################################################################
-
- ## ---------------- ##
- ## Handling rules. ##
- ## ---------------- ##
-
- # $BOOL
- # rule_define ($TARGET, $IS_AM, $COND, $WHERE)
- # --------------------------------------------
- # Define a new rule. $TARGET is the rule name. $IS_AM is a boolean
- # which is true if the new rule is defined by the user. $COND is the
- # condition under which the rule is defined. $WHERE is where the rule
- # is defined (file name or line number). Returns true if it is ok to
- # define the rule, false otherwise.
- sub rule_define ($$$$)
- {
- my ($target, $rule_is_am, $cond, $where) = @_;
-
- # For now `foo:' will override `foo$(EXEEXT):'. This is temporary,
- # though, so we emit a warning.
- (my $noexe = $target) =~ s,\$\(EXEEXT\)$,,;
- if ($noexe ne $target && defined $targets{$noexe})
- {
- # The no-exeext option enables this feature.
- if (! defined $options{'no-exeext'})
- {
- macro_error ($noexe,
- "deprecated feature: `$noexe' overrides `$noexe\$(EXEEXT)'\nchange your target to read `$noexe\$(EXEEXT)'");
- }
- # Don't define.
- return 0;
- }
-
- if (defined $targets{$target}
- && ($cond
- ? ! defined $target_conditional{$target}
- : defined $target_conditional{$target}))
- {
- target_error ($target,
- "$target defined both conditionally and unconditionally");
- }
-
- # Value here doesn't matter; for targets we only note existence.
- $targets{$target} = $where;
- if ($cond)
- {
- if ($target_conditional{$target})
- {
- &check_ambiguous_conditional ($target, $cond);
- }
- $target_conditional{$target}{$cond} = $where;
- }
-
- # Check the rule for being a suffix rule. If so, store in a hash.
- # Either it's a rule for two known extensions...
- if ($target =~ /^($KNOWN_EXTENSIONS_PATTERN)($KNOWN_EXTENSIONS_PATTERN)$/
- # ...or it's a rule with unknown extensions (.i.e, the rule looks like
- # `.foo.bar:' but `.foo' or `.bar' are not declared in SUFFIXES
- # and are not known language extensions).
- # Automake will complete SUFFIXES from @suffixes automatically
- # (see handle_footer).
- || ($target =~ /$SUFFIX_RULE_PATTERN/o && accept_extensions($1)))
- {
- my $internal_ext = $2;
-
- # When tranforming sources to objects, Automake uses the
- # %suffix_rules to move from each source extension to
- # `.$(OBJEXT)', not to `.o' or `.obj'. However some people
- # define suffix rules for `.o' or `.obj', so internally we will
- # consider these extensions equivalent to `.$(OBJEXT)'. We
- # CANNOT rewrite the target (i.e., automagically replace `.o'
- # and `.obj' by `.$(OBJEXT)' in the output), or warn the user
- # that (s)he'd better use `.$(OBJEXT)', because Automake itself
- # output suffix rules for `.o' or `.obj'...
- $internal_ext = '.$(OBJEXT)' if ($2 eq '.o' || $2 eq '.obj');
-
- $suffix_rules{$1} = $internal_ext;
- verbose "Sources ending in $1 become $2";
- push @suffixes, $1, $2;
- }
-
- return 1;
- }
-
-
- # See if a target exists.
- sub target_defined
- {
- my ($target) = @_;
- return defined $targets{$target};
- }
-
-
- ################################################################
-
- # &append_comments ($VARIABLE, $SPACING, $COMMENT)
- # ------------------------------------------------
- # Apped $COMMENT to the other comments for $VARIABLE, using
- # $SPACING as separator.
- sub append_comments ($$$)
- {
- my ($var, $spacing, $comment) = @_;
- $var_comment{$var} .= $spacing
- if (!defined $var_comment{$var} || $var_comment{$var} !~ /\n$/o);
- $var_comment{$var} .= $comment;
- }
-
-
- # &read_am_file ($AMFILE)
- # -----------------------
- # Read Makefile.am and set up %contents. Simultaneously copy lines
- # from Makefile.am into $output_trailer or $output_vars as
- # appropriate. NOTE we put rules in the trailer section. We want
- # user rules to come after our generated stuff.
- sub read_am_file ($)
- {
- my ($amfile) = @_;
-
- my $am_file = new Automake::XFile ("< $amfile");
- verbose "reading $amfile";
-
- my $spacing = '';
- my $comment = '';
- my $blank = 0;
- my $saw_bk = 0;
-
- use constant IN_VAR_DEF => 0;
- use constant IN_RULE_DEF => 1;
- use constant IN_COMMENT => 2;
- my $prev_state = IN_RULE_DEF;
-
- while ($_ = $am_file->getline)
- {
- if (/$IGNORE_PATTERN/o)
- {
- # Merely delete comments beginning with two hashes.
- }
- elsif (/$WHITE_PATTERN/o)
- {
- file_error ("$amfile:$.",
- "blank line following trailing backslash")
- if $saw_bk;
- # Stick a single white line before the incoming macro or rule.
- $spacing = "\n";
- $blank = 1;
- # Flush all comments seen so far.
- if ($comment ne '')
- {
- $output_vars .= $comment;
- $comment = '';
- }
- }
- elsif (/$COMMENT_PATTERN/o)
- {
- # Stick comments before the incoming macro or rule. Make
- # sure a blank line preceeds first block of comments.
- $spacing = "\n" unless $blank;
- $blank = 1;
- $comment .= $spacing . $_;
- $spacing = '';
- $prev_state = IN_COMMENT;
- }
- else
- {
- last;
- }
- $saw_bk = /\\$/ && ! /$IGNORE_PATTERN/o;
- }
-
- # We save the conditional stack on entry, and then check to make
- # sure it is the same on exit. This lets us conditonally include
- # other files.
- my @saved_cond_stack = @cond_stack;
- my $cond = conditional_string (@cond_stack);
-
- my $last_var_name = '';
- my $last_var_type = '';
- my $last_var_value = '';
- # FIXME: shouldn't use $_ in this loop; it is too big.
- while ($_)
- {
- my $here = "$amfile:$.";
-
- # Make sure the line is \n-terminated.
- chomp;
- $_ .= "\n";
-
- # Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
- # used by users. @MAINT@ is an anachronism now.
- $_ =~ s/\@MAINT\@//g
- unless $seen_maint_mode;
-
- my $new_saw_bk = /\\$/ && ! /$IGNORE_PATTERN/o;
-
- if (/$IGNORE_PATTERN/o)
- {
- # Merely delete comments beginning with two hashes.
- }
- elsif (/$WHITE_PATTERN/o)
- {
- # Stick a single white line before the incoming macro or rule.
- $spacing = "\n";
- file_error ($here, "blank line following trailing backslash")
- if $saw_bk;
- }
- elsif (/$COMMENT_PATTERN/o)
- {
- # Stick comments before the incoming macro or rule.
- $comment .= $spacing . $_;
- $spacing = '';
- file_error ($here, "comment following trailing backslash")
- if $saw_bk && $comment eq '';
- $prev_state = IN_COMMENT;
- }
- elsif ($saw_bk)
- {
- if ($prev_state == IN_RULE_DEF)
- {
- $output_trailer .= &make_condition (@cond_stack);
- $output_trailer .= $_;
- }
- elsif ($prev_state == IN_COMMENT)
- {
- # If the line doesn't start with a `#', add it.
- # We do this because a continuated comment like
- # # A = foo \
- # bar \
- # baz
- # is not portable. BSD make doesn't honor
- # escaped newlines in comments.
- s/^#?/#/;
- $comment .= $spacing . $_;
- }
- else # $prev_state == IN_VAR_DEF
- {
- $last_var_value .= ' '
- unless $last_var_value =~ /\s$/;
- $last_var_value .= $_;
-
- if (!/\\$/)
- {
- append_comments $last_var_name, $spacing, $comment;
- $comment = $spacing = '';
- macro_define ($last_var_name, 0,
- $last_var_type, $cond,
- $last_var_value, $here)
- if $cond ne 'FALSE';
- push (@var_list, $last_var_name);
- }
- }
- }
-
- elsif (/$IF_PATTERN/o)
- {
- $cond = cond_stack_if ($1, $2, $here);
- }
- elsif (/$ELSE_PATTERN/o)
- {
- $cond = cond_stack_else ($1, $2, $here);
- }
- elsif (/$ENDIF_PATTERN/o)
- {
- $cond = cond_stack_endif ($1, $2, $here);
- }
-
- elsif (/$RULE_PATTERN/o)
- {
- # Found a rule.
- $prev_state = IN_RULE_DEF;
-
- rule_define ($1, 0, $cond, $here);
-
- $output_trailer .= $comment . $spacing;
- $output_trailer .= &make_condition (@cond_stack);
- $output_trailer .= $_;
- $comment = $spacing = '';
- }
- elsif (/$ASSIGNMENT_PATTERN/o)
- {
- # Found a macro definition.
- $prev_state = IN_VAR_DEF;
- $last_var_name = $1;
- $last_var_type = $2;
- $last_var_value = $3;
- if ($3 ne '' && substr ($3, -1) eq "\\")
- {
- # We preserve the `\' because otherwise the long lines
- # that are generated will be truncated by broken
- # `sed's.
- $last_var_value = $3 . "\n";
- }
-
- if (!/\\$/)
- {
- # FIXME: this doesn't always work correctly; it will
- # group all comments for a given variable, no matter
- # where defined.
- # Accumulating variables must not be output.
- append_comments $last_var_name, $spacing, $comment;
- $comment = $spacing = '';
-
- macro_define ($last_var_name, 0,
- $last_var_type, $cond,
- $last_var_value, $here)
- if $cond ne 'FALSE';
- push (@var_list, $last_var_name);
- }
- }
- elsif (/$INCLUDE_PATTERN/o)
- {
- my $path = $1;
-
- if ($path =~ s/^\$\(top_srcdir\)\///)
- {
- push (@include_stack, "\$\(top_srcdir\)/$path");
- }
- else
- {
- $path =~ s/\$\(srcdir\)\///;
- push (@include_stack, "\$\(srcdir\)/$path");
- $path = $relative_dir . "/" . $path;
- }
- &read_am_file ($path);
- }
- else
- {
- # This isn't an error; it is probably a continued rule.
- # In fact, this is what we assume.
- $prev_state = IN_RULE_DEF;
- $output_trailer .= $comment . $spacing;
- $output_trailer .= &make_condition (@cond_stack);
- $output_trailer .= $_;
- $comment = $spacing = '';
- file_error ($here, "`#' comment at start of rule is unportable")
- if $_ =~ /^\t\s*\#/;
- }
-
- $saw_bk = $new_saw_bk;
- $_ = $am_file->getline;
- }
-
- $output_trailer .= $comment;
-
- if ("@saved_cond_stack" ne "@cond_stack")
- {
- if (@cond_stack)
- {
- &am_error ("unterminated conditionals: @cond_stack");
- }
- else
- {
- # FIXME: better error message here.
- &am_error ("conditionals not nested in include file");
- }
- }
- }
-
-
- # define_standard_variables ()
- # ----------------------------
- # A helper for read_main_am_file which initializes configure variables
- # and variables from header-vars.am. This is a subr so we can call it
- # twice.
- sub define_standard_variables
- {
- my $saved_output_vars = $output_vars;
- my ($comments, undef, $rules) =
- file_contents_internal (1, "$libdir/am/header-vars.am");
-
- # This will output the definitions in $output_vars, which we don't
- # want...
- foreach my $var (sort keys %configure_vars)
- {
- &define_configure_variable ($var);
- push (@var_list, $var);
- }
-
- # ... hence, we restore $output_vars.
- $output_vars = $saved_output_vars . $comments . $rules;
- }
-
- # Read main am file.
- sub read_main_am_file
- {
- my ($amfile) = @_;
-
- # This supports the strange variable tricks we are about to play.
- if (scalar keys %var_value > 0)
- {
- macros_dump ();
- prog_error ("variable defined before read_main_am_file");
- }
-
- # Generate copyright header for generated Makefile.in.
- # We do discard the output of predefined variables, handled below.
- $output_vars = ("# $in_file_name generated by automake "
- . $VERSION . " from $am_file_name.\n");
- $output_vars .= '# ' . subst ('configure_input') . "\n";
- $output_vars .= $gen_copyright;
-
- # We want to predefine as many variables as possible. This lets
- # the user set them with `+=' in Makefile.am. However, we don't
- # want these initial definitions to end up in the output quite
- # yet. So we just load them, but output them later.
- &define_standard_variables;
-
- # Read user file, which might override some of our values.
- &read_am_file ($amfile);
-
- # Output all the Automake variables. If the user changed one,
- # then it is now marked as owned by the user.
- foreach my $var (uniq @var_list)
- {
- # Don't process user variables.
- variable_output ($var)
- unless !$var_is_am{$var};
- }
-
- # Now dump the user variables that were defined. We do it in the same
- # order in which they were defined (skipping duplicates).
- foreach my $var (uniq @var_list)
- {
- # Don't process Automake variables.
- variable_output ($var)
- unless $var_is_am{$var};
- }
- }
-
- ################################################################
-
- # $FLATTENED
- # &flatten ($STRING)
- # ------------------
- # Flatten the $STRING and return the result.
- sub flatten
- {
- $_ = shift;
-
- s/\\\n//somg;
- s/\s+/ /g;
- s/^ //;
- s/ $//;
-
- return $_;
- }
-
-
- # @PARAGRAPHS
- # &make_paragraphs ($MAKEFILE, [%TRANSFORM])
- # ------------------------------------------
- # Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
- # paragraphs.
- sub make_paragraphs ($%)
- {
- my ($file, %transform) = @_;
-
- # Complete %transform with global options and make it a Perl
- # $command.
- my $command =
- "s/$IGNORE_PATTERN//gm;"
- . transform (%transform,
-
- 'CYGNUS' => $cygnus_mode,
- 'MAINTAINER-MODE'
- => $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
-
- 'SHAR' => $options{'dist-shar'} || 0,
- 'BZIP2' => $options{'dist-bzip2'} || 0,
- 'ZIP' => $options{'dist-zip'} || 0,
- 'COMPRESS' => $options{'dist-tarZ'} || 0,
-
- 'INSTALL-INFO' => !$options{'no-installinfo'},
- 'INSTALL-MAN' => !$options{'no-installman'},
- 'CK-NEWS' => $options{'check-news'} || 0,
-
- 'SUBDIRS' => variable_defined ('SUBDIRS'),
- 'TOPDIR' => backname ($relative_dir),
- 'TOPDIR_P' => $relative_dir eq '.',
- 'CONFIGURE-AC' => $configure_ac,
-
- 'BUILD' => $seen_canonical == AC_CANONICAL_SYSTEM,
- 'HOST' => $seen_canonical,
- 'TARGET' => $seen_canonical == AC_CANONICAL_SYSTEM,
-
- 'LIBTOOL' => defined $configure_vars{'LIBTOOL'})
- # We don't need more than two consecutive new-lines.
- . 's/\n{3,}/\n\n/g';
-
- # Swallow the file and apply the COMMAND.
- my $fc_file = new Automake::XFile "< $file";
- # Looks stupid?
- verbose "reading $file";
- my $saved_dollar_slash = $/;
- undef $/;
- $_ = $fc_file->getline;
- $/ = $saved_dollar_slash;
- eval $command;
- $fc_file->close;
- my $content = $_;
-
- # Split at unescaped new lines.
- my @lines = split (/(?<!\\)\n/, $content);
- my @res;
-
- while (defined ($_ = shift @lines))
- {
- my $paragraph = "$_";
- # If we are a rule, eat as long as we start with a tab.
- if (/$RULE_PATTERN/smo)
- {
- while (defined ($_ = shift @lines) && $_ =~ /^\t/)
- {
- $paragraph .= "\n$_";
- }
- unshift (@lines, $_);
- }
-
- # If we are a comments, eat as much comments as you can.
- elsif (/$COMMENT_PATTERN/smo)
- {
- while (defined ($_ = shift @lines)
- && $_ =~ /$COMMENT_PATTERN/smo)
- {
- $paragraph .= "\n$_";
- }
- unshift (@lines, $_);
- }
-
- push @res, $paragraph;
- $paragraph = '';
- }
-
- return @res;
- }
-
-
-
- # ($COMMENT, $VARIABLES, $RULES)
- # &file_contents_internal ($IS_AM, $FILE, [%TRANSFORM])
- # -----------------------------------------------------
- # Return contents of a file from $libdir/am, automatically skipping
- # macros or rules which are already known. $IS_AM iff the caller is
- # reading an Automake file (as opposed to the user's Makefile.am).
- sub file_contents_internal ($$%)
- {
- my ($is_am, $file, %transform) = @_;
-
- my $result_vars = '';
- my $result_rules = '';
- my $comment = '';
- my $spacing = '';
-
- # The following flags are used to track rules spanning across
- # multiple paragraphs.
- my $is_rule = 0; # 1 if we are processing a rule.
- my $discard_rule = 0; # 1 if the current rule should not be output.
-
- # We save the conditional stack on entry, and then check to make
- # sure it is the same on exit. This lets us conditonally include
- # other files.
- my @saved_cond_stack = @cond_stack;
- my $cond = conditional_string (@cond_stack);
-
- foreach (make_paragraphs ($file, %transform))
- {
- # Sanity checks.
- file_error ($file, "blank line following trailing backslash:\n$_")
- if /\\$/;
- file_error ($file, "comment following trailing backslash:\n$_")
- if /\\#/;
-
- if (/^$/)
- {
- $is_rule = 0;
- # Stick empty line before the incoming macro or rule.
- $spacing = "\n";
- }
- elsif (/$COMMENT_PATTERN/mso)
- {
- $is_rule = 0;
- # Stick comments before the incoming macro or rule.
- $comment = "$_\n";
- }
-
- # Handle inclusion of other files.
- elsif (/$INCLUDE_PATTERN/o)
- {
- if ($cond ne 'FALSE')
- {
- my $file = ($is_am ? "$libdir/am/" : '') . $1;
- # N-ary `.=' fails.
- my ($com, $vars, $rules)
- = file_contents_internal ($is_am, $file, %transform);
- $comment .= $com;
- $result_vars .= $vars;
- $result_rules .= $rules;
- }
- }
-
- # Handling the conditionals.
- elsif (/$IF_PATTERN/o)
- {
- $cond = cond_stack_if ($1, $2, $file);
- }
- elsif (/$ELSE_PATTERN/o)
- {
- $cond = cond_stack_else ($1, $2, $file);
- }
- elsif (/$ENDIF_PATTERN/o)
- {
- $cond = cond_stack_endif ($1, $2, $file);
- }
-
- # Handling rules.
- elsif (/$RULE_PATTERN/mso)
- {
- $is_rule = 1;
- $discard_rule = 0;
- # Separate relationship from optional actions: the first
- # `new-line tab" not preceded by backslash (continuation
- # line).
- # I'm quite shoked! It seems that (\\\n|[^\n]) is not the
- # same as `([^\n]|\\\n)!!! Don't swap it, it breaks.
- my $paragraph = $_;
- /^((?:\\\n|[^\n])*)(?:\n(\t.*))?$/som;
- my ($relationship, $actions) = ($1, $2 || '');
-
- # Separate targets from dependencies: the first colon.
- $relationship =~ /^([^:]+\S+) *: *(.*)$/som;
- my ($targets, $dependencies) = ($1, $2);
- # Remove the escaped new lines.
- # I don't know why, but I have to use a tmp $flat_deps.
- my $flat_deps = &flatten ($dependencies);
- my @deps = split (' ', $flat_deps);
-
- foreach (split (' ' , $targets))
- {
- # FIXME: We are not robust to people defining several targets
- # at once, only some of them being in %dependencies. The
- # actions from the targets in %dependencies are usually generated
- # from the content of %actions, but if some targets in $targets
- # are not in %dependencies the ELSE branch will output
- # a rule for all $targets (i.e. the targets which are both
- # in %dependencies and $targets will have two rules).
-
- # FIXME: The logic here is not able to output a
- # multi-paragraph rule several time (e.g. for each conditional
- # it is defined for) because it only knows the first paragraph.
-
- # Output only if not in FALSE.
- if (defined $dependencies{$_}
- && $cond ne 'FALSE')
- {
- &depend ($_, @deps);
- $actions{$_} .= $actions;
- }
- else
- {
- # Free-lance dependency. Output the rule for all the
- # targets instead of one by one.
-
- # Work out all the conditions for which the target hasn't
- # been defined
- my @undefined_conds;
- if (defined $target_conditional{$targets})
- {
- my @defined_conds = keys %{$target_conditional{$targets}};
- @undefined_conds = invert_conditions(@defined_conds);
- }
- else
- {
- if (defined $targets{$targets})
- {
- # No conditions for which target hasn't been defined
- @undefined_conds = ();
- }
- else
- {
- # Target hasn't been defined for any conditions
- @undefined_conds = ("");
- }
- }
-
- if ($cond ne 'FALSE')
- {
- for my $undefined_cond (@undefined_conds)
- {
- my $condparagraph = $paragraph;
- $condparagraph =~ s/^/make_condition (@cond_stack, $undefined_cond)/gme;
- if (rule_define ($targets, $is_am,
- "$cond $undefined_cond", $file))
- {
- $result_rules .=
- "$spacing$comment$condparagraph\n"
- }
- else
- {
- # Remember to discard next paragraphs
- # if they belong to this rule.
- $discard_rule = 1;
- }
- }
- if ($#undefined_conds == -1)
- {
- # This target has already been defined, the rule
- # has not been defined. Remember to discard next
- # paragraphs if they belong to this rule.
- $discard_rule = 1;
- }
- }
- $comment = $spacing = '';
- last;
- }
- }
- }
-
- elsif (/$ASSIGNMENT_PATTERN/mso)
- {
- my ($var, $type, $val) = ($1, $2, $3);
- file_error ($file, "macro `$var' with trailing backslash")
- if /\\$/;
-
- $is_rule = 0;
-
- # Accumulating variables must not be output.
- append_comments $var, $spacing, $comment;
- macro_define ($var, $is_am, $type, $cond, $val, $file)
- if $cond ne 'FALSE';
- push (@var_list, $var);
-
- # If the user has set some variables we were in charge
- # of (which is detected by the first reading of
- # `header-vars.am'), we must not output them.
- $result_vars .= "$spacing$comment$_\n"
- if $type ne '+' && $var_is_am{$var} && $cond ne 'FALSE';
-
- $comment = $spacing = '';
- }
- else
- {
- # This isn't an error; it is probably some tokens which
- # configure is supposed to replace, such as `@SET-MAKE@',
- # or some part of a rule cut by an if/endif.
- if ($cond ne 'FALSE' && ! ($is_rule && $discard_rule))
- {
- s/^/make_condition (@cond_stack)/gme;
- $result_rules .= "$spacing$comment$_\n";
- }
- $comment = $spacing = '';
- }
- }
-
- if ("@saved_cond_stack" ne "@cond_stack")
- {
- if (@cond_stack)
- {
- &am_error ("unterminated conditionals: @cond_stack");
- }
- else
- {
- # FIXME: better error message here.
- &am_error ("conditionals not nested in include file");
- }
- }
-
- return ($comment, $result_vars, $result_rules);
- }
-
-
- # $CONTENTS
- # &file_contents ($BASENAME, [%TRANSFORM])
- # ----------------------------------------
- # Return contents of a file from $libdir/am, automatically skipping
- # macros or rules which are already known.
- sub file_contents ($%)
- {
- my ($basename, %transform) = @_;
- my ($comments, $variables, $rules) =
- file_contents_internal (1, "$libdir/am/$basename.am", %transform);
- return "$comments$variables$rules";
- }
-
-
- # $REGEXP
- # &transform (%PAIRS)
- # -------------------
- # Foreach ($TOKEN, $VAL) in %PAIRS produce a replacement expression suitable
- # for file_contents which:
- # - replaces %$TOKEN% with $VAL,
- # - enables/disables ?$TOKEN? and ?!$TOKEN?,
- # - replaces %?$TOKEN% with TRUE or FALSE.
- sub transform (%)
- {
- my (%pairs) = @_;
- my $result = '';
-
- while (my ($token, $val) = each %pairs)
- {
- $result .= "s/\Q%$token%\E/\Q$val\E/gm;";
- if ($val)
- {
- $result .= "s/\Q?$token?\E//gm;s/^.*\Q?!$token?\E.*\\n//gm;";
- $result .= "s/\Q%?$token%\E/TRUE/gm;";
- }
- else
- {
- $result .= "s/\Q?!$token?\E//gm;s/^.*\Q?$token?\E.*\\n//gm;";
- $result .= "s/\Q%?$token%\E/FALSE/gm;";
- }
- }
-
- return $result;
- }
-
-
- # &append_exeext ($MACRO)
- # -----------------------
- # Macro is an Automake magic macro which primary is PROGRAMS, e.g.
- # bin_PROGRAMS. Make sure these programs have $(EXEEXT) appended.
- sub append_exeext ($)
- {
- my ($macro) = @_;
-
- prog_error "append_exeext ($macro)"
- unless $macro =~ /_PROGRAMS$/;
-
- my @conds = variable_conditions_recursive ($macro);
-
- my @condvals;
- foreach my $cond (@conds)
- {
- my @one_binlist = ();
- my @condval = variable_value_as_list_recursive ($macro, $cond);
- foreach my $rcurs (@condval)
- {
- # Skip autoconf substs. Also skip if the user
- # already applied $(EXEEXT).
- if ($rcurs =~ /^\@.*\@$/ || $rcurs =~ /\$\(EXEEXT\)$/)
- {
- push (@one_binlist, $rcurs);
- }
- else
- {
- push (@one_binlist, $rcurs . '$(EXEEXT)');
- }
- }
-
- push (@condvals, $cond);
- push (@condvals, "@one_binlist");
- }
-
- macro_delete ($macro);
- while (@condvals)
- {
- my $cond = shift (@condvals);
- my @val = split (' ', shift (@condvals));
- define_pretty_variable ($macro, $cond, @val);
- }
- }
-
-
- # @PREFIX
- # &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
- # -----------------------------------------------------
- # Find all variable prefixes that are used for install directories. A
- # prefix `zar' qualifies iff:
- #
- # * `zardir' is a variable.
- # * `zar_PRIMARY' is a variable.
- #
- # As a side effect, it looks for misspellings. It is an error to have
- # a variable ending in a "reserved" suffix whose prefix is unknown, eg
- # "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
- # of the same name (with "dir" appended) exists. For instance, if the
- # variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
- # This is to provide a little extra flexibility in those cases which
- # need it.
- sub am_primary_prefixes ($$@)
- {
- my ($primary, $can_dist, @prefixes) = @_;
-
- local $_;
- my %valid = map { $_ => 0 } @prefixes;
- $valid{'EXTRA'} = 0;
- foreach my $varname (keys %var_value)
- {
- # Automake is allowed to define variables that look like they
- # are magic variables, such as INSTALL_DATA.
- next
- if $var_is_am{$varname};
-
- if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_$primary$/)
- {
- my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
- if ($dist ne '' && ! $can_dist)
- {
- # Note that a configure variable is always legitimate.
- # It is natural to name such variables after the
- # primary, so we explicitly allow it.
- macro_error ($varname,
- "invalid variable `$varname': `dist' is forbidden")
- if ! exists $configure_vars{$varname};
- }
- # A not-explicitely-allowed prefix X is allowed if Xdir
- # has been defined and X is not a standard prefix.
- elsif (! defined $valid{$X} && (! variable_defined ("${X}dir")
- || exists $standard_prefix{$X}))
- {
- # Note that a configure variable is always legitimate.
- # It is natural to name such variables after the
- # primary, so we explicitly allow it.
- macro_error ($varname, "invalid variable `$varname'")
- if ! exists $configure_vars{$varname};
- }
- else
- {
- # Ensure all extended prefixes are actually used.
- $valid{"$base$dist$X"} = 1;
- }
- }
- }
-
- # Return only those which are actually defined.
- return sort grep { variable_defined ($_ . '_' . $primary) } keys %valid;
- }
-
-
- # Handle `where_HOW' variable magic. Does all lookups, generates
- # install code, and possibly generates code to define the primary
- # variable. The first argument is the name of the .am file to munge,
- # the second argument is the primary variable (eg HEADERS), and all
- # subsequent arguments are possible installation locations. Returns
- # list of all values of all _HOW targets.
- #
- # FIXME: this should be rewritten to be cleaner. It should be broken
- # up into multiple functions.
- #
- # Usage is: am_install_var (OPTION..., file, HOW, where...)
- sub am_install_var
- {
- my (@args) = @_;
-
- my $do_require = 1;
- my $can_dist = 0;
- my $default_dist = 0;
- while (@args)
- {
- if ($args[0] eq '-noextra')
- {
- $do_require = 0;
- }
- elsif ($args[0] eq '-candist')
- {
- $can_dist = 1;
- }
- elsif ($args[0] eq '-defaultdist')
- {
- $default_dist = 1;
- $can_dist = 1;
- }
- elsif ($args[0] !~ /^-/)
- {
- last;
- }
- shift (@args);
- }
-
- my ($file, $primary, @prefix) = @args;
-
- # Now that configure substitutions are allowed in where_HOW
- # variables, it is an error to actually define the primary. We
- # allow `JAVA', as it is customarily used to mean the Java
- # interpreter. This is but one of several Java hacks. Similarly,
- # `PYTHON' is customarily used to mean the Python interpreter.
- macro_error ($primary, "`$primary' is an anachronism")
- if variable_defined ($primary)
- && ($primary ne 'JAVA' && $primary ne 'PYTHON');
-
-
- # Get the prefixes which are valid and actually used.
- @prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
-
- # If a primary includes a configure substitution, then the EXTRA_
- # form is required. Otherwise we can't properly do our job.
- my $require_extra;
- my $warned_about_extra = 0;
-
- my @used = ();
- my @result = ();
-
- # True if the iteration is the first one. Used for instance to
- # output parts of the associated file only once.
- my $first = 1;
- foreach my $X (@prefix)
- {
- my $nodir_name = $X;
- my $one_name = $X . '_' . $primary;
-
- my $strip_subdir = 1;
- # If subdir prefix should be preserved, do so.
- if ($nodir_name =~ /^nobase_/)
- {
- $strip_subdir = 0;
- $nodir_name =~ s/^nobase_//;
- }
-
- # If files should be distributed, do so.
- my $dist_p = 0;
- if ($can_dist)
- {
- $dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
- || (! $default_dist && $nodir_name =~ /^dist_/));
- $nodir_name =~ s/^(dist|nodist)_//;
- }
-
- # Append actual contents of where_PRIMARY variable to
- # result.
- foreach my $rcurs (&variable_value_as_list_recursive ($one_name, 'all'))
- {
- # Skip configure substitutions. Possibly bogus.
- if ($rcurs =~ /^\@.*\@$/)
- {
- if ($nodir_name eq 'EXTRA')
- {
- if (! $warned_about_extra)
- {
- $warned_about_extra = 1;
- macro_error ($one_name,
- "`$one_name' contains configure substitution, but shouldn't");
- }
- }
- # Check here to make sure variables defined in
- # configure.ac do not imply that EXTRA_PRIMARY
- # must be defined.
- elsif (! defined $configure_vars{$one_name})
- {
- $require_extra = $one_name
- if $do_require;
- }
-
- next;
- }
-
- push (@result, $rcurs);
- }
-
- # A blatant hack: we rewrite each _PROGRAMS primary to include
- # EXEEXT.
- append_exeext ($one_name)
- if $primary eq 'PROGRAMS';
-
- # "EXTRA" shouldn't be used when generating clean targets,
- # all, or install targets. We used to warn if EXTRA_FOO was
- # defined uselessly, but this was annoying.
- next
- if $nodir_name eq 'EXTRA';
-
- if ($nodir_name eq 'check')
- {
- push (@check, '$(' . $one_name . ')');
- }
- else
- {
- push (@used, '$(' . $one_name . ')');
- }
-
- # Is this to be installed?
- my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
-
- # If so, with install-exec? (or install-data?).
- my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
-
- # Singular form of $PRIMARY.
- (my $one_primary = $primary) =~ s/S$//;
- $output_rules .= &file_contents ($file,
- ('FIRST' => $first,
-
- 'PRIMARY' => $primary,
- 'ONE_PRIMARY' => $one_primary,
- 'DIR' => $X,
- 'NDIR' => $nodir_name,
- 'BASE' => $strip_subdir,
-
- 'EXEC' => $exec_p,
- 'INSTALL' => $install_p,
- 'DIST' => $dist_p));
-
- $first = 0;
- }
-
- # The JAVA variable is used as the name of the Java interpreter.
- # The PYTHON variable is used as the name of the Python interpreter.
- if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
- {
- # Define it.
- define_pretty_variable ($primary, '', @used);
- $output_vars .= "\n";
- }
-
- if ($require_extra && ! variable_defined ('EXTRA_' . $primary))
- {
- macro_error ($require_extra,
- "`$require_extra' contains configure substitution, but `EXTRA_$primary' not defined");
- }
-
- # Push here because PRIMARY might be configure time determined.
- push (@all, '$(' . $primary . ')')
- if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
-
- # Make the result unique. This lets the user use conditionals in
- # a natural way, but still lets us program lazily -- we don't have
- # to worry about handling a particular object more than once.
- return uniq (sort @result);
- }
-
-
- ################################################################
-
- # Each key in this hash is the name of a directory holding a
- # Makefile.in. These variables are local to `is_make_dir'.
- my %make_dirs = ();
- my $make_dirs_set = 0;
-
- sub is_make_dir
- {
- my ($dir) = @_;
- if (! $make_dirs_set)
- {
- foreach my $iter (@configure_input_files)
- {
- $make_dirs{dirname ($iter)} = 1;
- }
- # We also want to notice Makefile.in's.
- foreach my $iter (@other_input_files)
- {
- if ($iter =~ /Makefile\.in$/)
- {
- $make_dirs{dirname ($iter)} = 1;
- }
- }
- $make_dirs_set = 1;
- }
- return defined $make_dirs{$dir};
- }
-
- ################################################################
-
- # This variable is local to the "require file" set of functions.
- my @require_file_paths = ();
-
-
- # &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
- # --------------------------------------------------
- # See if we want to push this file onto dist_common. This function
- # encodes the rules for deciding when to do so.
- sub maybe_push_required_file
- {
- my ($dir, $file, $fullfile) = @_;
-
- if ($dir eq $relative_dir)
- {
- push_dist_common ($file);
- return 1;
- }
- elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
- {
- # If we are doing the topmost directory, and the file is in a
- # subdir which does not have a Makefile, then we distribute it
- # here.
- push_dist_common ($fullfile);
- return 1;
- }
- return 0;
- }
-
-
- # &require_file_internal ($WHERE, $MYSTRICT, @FILES)
- # --------------------------------------------------
- # Verify that the file must exist in the current directory.
- # $MYSTRICT is the strictness level at which this file becomes required.
- #
- # Must set require_file_paths before calling this function.
- # require_file_paths is set to hold a single directory (the one in
- # which the first file was found) before return.
- sub require_file_internal ($$@)
- {
- my ($where, $mystrict, @files) = @_;
-
- foreach my $file (@files)
- {
- my $fullfile;
- my $errdir;
- my $errfile;
- my $save_dir;
-
- my $found_it = 0;
- my $dangling_sym = 0;
- foreach my $dir (@require_file_paths)
- {
- $fullfile = $dir . "/" . $file;
- $errdir = $dir unless $errdir;
-
- # Use different name for "error filename". Otherwise on
- # an error the bad file will be reported as eg
- # `../../install-sh' when using the default
- # config_aux_path.
- $errfile = $errdir . '/' . $file;
-
- if (-l $fullfile && ! -f $fullfile)
- {
- $dangling_sym = 1;
- last;
- }
- elsif (-f $fullfile)
- {
- $found_it = 1;
- maybe_push_required_file ($dir, $file, $fullfile);
- $save_dir = $dir;
- last;
- }
- }
-
- # `--force-missing' only has an effect if `--add-missing' is
- # specified.
- if ($found_it && (! $add_missing || ! $force_missing))
- {
- # Prune the path list.
- @require_file_paths = $save_dir;
- }
- else
- {
- # If we've already looked for it, we're done. You might
- # wonder why we don't do this before searching for the
- # file. If we do that, then something like
- # AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
- # DIST_COMMON.
- if (! $found_it)
- {
- next if defined $require_file_found{$fullfile};
- $require_file_found{$fullfile} = 1;
- }
-
- if ($strictness >= $mystrict)
- {
- if ($dangling_sym && $add_missing)
- {
- unlink ($fullfile);
- }
-
- my $trailer = '';
- my $suppress = 0;
-
- # Only install missing files according to our desired
- # strictness level.
- my $message = "required file `$errfile' not found";
- if ($add_missing)
- {
- $suppress = 1;
-
- if (-f ("$libdir/$file"))
- {
- # Install the missing file. Symlink if we
- # can, copy if we must. Note: delete the file
- # first, in case it is a dangling symlink.
- $message = "installing `$errfile'";
- # Windows Perl will hang if we try to delete a
- # file that doesn't exist.
- unlink ($errfile) if -f $errfile;
- if ($symlink_exists && ! $copy_missing)
- {
- if (! symlink ("$libdir/$file", $errfile))
- {
- $suppress = 0;
- $trailer = "; error while making link: $!";
- }
- }
- elsif (system ('cp', "$libdir/$file", $errfile))
- {
- $suppress = 0;
- $trailer = "\n error while copying";
- }
- }
-
- if (! maybe_push_required_file (dirname ($errfile),
- $file, $errfile))
- {
- if (! $found_it)
- {
- # We have added the file but could not push it
- # into DIST_COMMON (probably because this is
- # an auxiliary file and we are not processing
- # the top level Makefile). This is unfortunate,
- # since it means we are using a file which is not
- # distributed!
-
- # Get Automake to be run again: on the second
- # run the file will be found, and pushed into
- # the toplevel DIST_COMMON automatically.
- $automake_needs_to_reprocess_all_files = 1;
- }
- }
-
- # Prune the path list.
- @require_file_paths = &dirname ($errfile);
- }
-
- # If --force-missing was specified, and we have
- # actually found the file, then do nothing.
- next
- if $found_it && $force_missing;
-
- if ($suppress)
- {
- file_warning ($where, "$message$trailer");
- }
- else
- {
- file_error ($where, "$message$trailer");
- }
- }
- }
- }
- }
-
- # &require_file ($WHERE, $MYSTRICT, @FILES)
- # -----------------------------------------
- sub require_file ($$@)
- {
- my ($where, $mystrict, @files) = @_;
- @require_file_paths = $relative_dir;
- require_file_internal ($where, $mystrict, @files);
- }
-
- # &require_file_with_macro ($MACRO, $MYSTRICT, @FILES)
- # ----------------------------------------------------
- sub require_file_with_macro ($$@)
- {
- my ($macro, $mystrict, @files) = @_;
- require_file ($var_location{$macro}, $mystrict, @files);
- }
-
-
- # &require_conf_file ($WHERE, $MYSTRICT, @FILES)
- # ----------------------------------------------
- # Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
- sub require_conf_file ($$@)
- {
- my ($where, $mystrict, @files) = @_;
- @require_file_paths = @config_aux_path;
- require_file_internal ($where, $mystrict, @files);
- my $dir = $require_file_paths[0];
- @config_aux_path = @require_file_paths;
- # Avoid unsightly '/.'s.
- $config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
- }
-
-
- # &require_conf_file_with_macro ($MACRO, $MYSTRICT, @FILES)
- # ---------------------------------------------------------
- sub require_conf_file_with_macro ($$@)
- {
- my ($macro, $mystrict, @files) = @_;
- require_conf_file ($var_location{$macro}, $mystrict, @files);
- }
-
- ################################################################
-
- # &require_build_directory ($DIRECTORY)
- # ------------------------------------
- # Emit rules to create $DIRECTORY if needed, and return
- # the file that any target requiring this directory should be made
- # dependent upon.
- sub require_build_directory ($)
- {
- my $directory = shift;
- my $dirstamp = "$directory/.dirstamp";
-
- # Don't emit the rule twice.
- if (! defined $directory_map{$directory})
- {
- $directory_map{$directory} = 1;
-
- # Directory must be removed by `make distclean'.
- $compile_clean_files{$dirstamp} = DIST_CLEAN;
-
- $output_rules .= ("$dirstamp:\n"
- . "\t\@\$(mkinstalldirs) $directory\n"
- . "\t\@: > $dirstamp\n");
- }
-
- return $dirstamp;
- }
-
- # &require_build_directory_maybe ($FILE)
- # --------------------------------------
- # If $FILE lies in a subdirectory, emit a rule to create this
- # directory and return the file that $FILE should be made
- # dependent upon. Otherwise, just return the empty string.
- sub require_build_directory_maybe ($)
- {
- my $file = shift;
- my $directory = dirname ($file);
-
- if ($directory ne '.')
- {
- return require_build_directory ($directory);
- }
- else
- {
- return '';
- }
- }
-
- ################################################################
-
- # Push a list of files onto dist_common.
- sub push_dist_common
- {
- prog_error ("push_dist_common run after handle_dist")
- if $handle_dist_run;
- macro_define ('DIST_COMMON', 1, '+', '', "@_", '');
- }
-
-
- # Set strictness.
- sub set_strictness
- {
- $strictness_name = $_[0];
- if ($strictness_name eq 'gnu')
- {
- $strictness = GNU;
- }
- elsif ($strictness_name eq 'gnits')
- {
- $strictness = GNITS;
- }
- elsif ($strictness_name eq 'foreign')
- {
- $strictness = FOREIGN;
- }
- else
- {
- die "$me: level `$strictness_name' not recognized\n";
- }
- }
-
-
- ################################################################
-
- # Glob something. Do this to avoid indentation screwups everywhere we
- # want to glob. Gross!
- sub my_glob
- {
- my ($pat) = @_;
- return <${pat}>;
- }
-
- # Remove one level of brackets and strip leading spaces,
- # as does m4 to function arguments.
- sub unquote_m4_arg
- {
- $_ = shift;
- s/^\s*//;
-
- my @letters = split //;
- my @result = ();
- my $depth = 0;
-
- foreach (@letters)
- {
- if ($_ eq '[')
- {
- ++$depth;
- next if $depth == 1;
- }
- elsif ($_ eq ']')
- {
- --$depth;
- next if $depth == 0;
- # don't count orphan right brackets
- $depth = 0 if $depth < 0;
- }
- push @result, $_;
- }
- return join '', @result;
- }
-
- ################################################################
-
- # print_error ($LEADER, @ARGS)
- # ----------------------------
- # Do the work of printing the error message. Join @ARGS with spaces,
- # then split at newlines and add $LEADER to each line. Uses `warn' to
- # print message. Set exit status.
- sub print_error
- {
- my ($leader, @args) = @_;
- my $text = "@args";
- @args = split ("\n", $text);
- $text = $leader . join ("\n" . $leader, @args) . "\n";
- warn $text;
- $exit_status = 1;
- }
-
-
- # Print an error message and set exit status.
- sub am_error (@)
- {
- print_error ("$me: ${am_file}.am: ", @_);
- }
-
-
- # &file_error ($FILE, @ARGS)
- # --------------------------
- sub file_error ($@)
- {
- my ($file, @args) = @_;
- print_error ("$file: ", @args);
- }
-
-
- # ¯o_error ($MACRO, @ARGS)
- # ----------------------------
- # Report an error, @ARGS, about $MACRO.
- sub macro_error ($@)
- {
- my ($macro, @args) = @_;
- file_error ($var_location{$macro}, @args);
- }
-
-
- # &target_error ($TARGET, @ARGS)
- # ------------------------------
- # Report an error, @ARGS, about the rule $TARGET.
- sub target_error ($@)
- {
- my ($target, @args) = @_;
- file_error ($targets{$target}, @args);
- }
-
-
- # Like am_error, but while scanning configure.ac.
- sub conf_error
- {
- # FIXME: can run in subdirs.
- print_error ("$me: $configure_ac: ", @_);
- }
-
- # &file_warning ($FILE, @ARGS)
- # ----------------------------
- # Warning message with line number referring to configure.ac.
- # Does not affect exit_status
- sub file_warning ($@)
- {
- my ($file, @args) = @_;
-
- my $saved_exit_status = $exit_status;
- my $sig = $SIG{'__WARN__'};
- $SIG{'__WARN__'} = 'DEFAULT';
- file_error ($file, @args);
- $exit_status = $saved_exit_status;
- $SIG{'__WARN__'} = $sig;
- }
-
- # Tell user where our aclocal.m4 is, but only once.
- sub keyed_aclocal_warning ($)
- {
- my ($key) = @_;
- warn "$me: macro `$key' can be generated by `aclocal'\n";
- }
-
- # Print usage information.
- sub usage ()
- {
- print <<EOF;
- Usage: $0 [OPTION] ... [Makefile]...
-
- Generate Makefile.in for configure from Makefile.am.
-
- Operation modes:
- --help print this help, then exit
- --version print version number, then exit
- -v, --verbose verbosely list files processed
- --no-force only update Makefile.in's that are out of date
-
- Dependency tracking:
- -i, --ignore-deps disable dependency tracking code
- --include-deps enable dependency tracking code
-
- Flavors:
- --cygnus assume program is part of Cygnus-style tree
- --foreign set strictness to foreign
- --gnits set strictness to gnits
- --gnu set strictness to gnu
-
- Library files:
- -a, --add-missing add missing standard files to package
- --libdir=DIR directory storing library files
- -c, --copy with -a, copy missing files (default is symlink)
- -f, --force-missing force update of standard files
- EOF
-
- my ($last, @lcomm);
- $last = '';
- foreach my $iter (sort ((@common_files, @common_sometimes)))
- {
- push (@lcomm, $iter) unless $iter eq $last;
- $last = $iter;
- }
-
- my @four;
- print "\nFiles which are automatically distributed, if found:\n";
- format USAGE_FORMAT =
- @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
- $four[0], $four[1], $four[2], $four[3]
- .
- $~ = "USAGE_FORMAT";
-
- my $cols = 4;
- my $rows = int(@lcomm / $cols);
- my $rest = @lcomm % $cols;
-
- if ($rest)
- {
- $rows++;
- }
- else
- {
- $rest = $cols;
- }
-
- for (my $y = 0; $y < $rows; $y++)
- {
- @four = ("", "", "", "");
- for (my $x = 0; $x < $cols; $x++)
- {
- last if $y + 1 == $rows && $x == $rest;
-
- my $idx = (($x > $rest)
- ? ($rows * $rest + ($rows - 1) * ($x - $rest))
- : ($rows * $x));
-
- $idx += $y;
- $four[$x] = $lcomm[$idx];
- }
- write;
- }
-
- print "\nReport bugs to <bug-automake\@gnu.org>.\n";
-
- exit 0;
- }
-
-
- # &version ()
- # -----------
- # Print version information
- sub version ()
- {
- print <<EOF;
- automake (GNU $PACKAGE) $VERSION
- Written by Tom Tromey <tromey\@redhat.com>.
-
- Copyright 2002 Free Software Foundation, Inc.
- This is free software; see the source for copying conditions. There is NO
- warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- EOF
- exit 0;
- }
-