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#!@PERL@ -w
# -*- perl -*-
# @configure_input@
eval 'exec @PERL@ -S $0 ${1+"$@"}'
if 0;
# automake - create Makefile.in from Makefile.am
# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
# 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@cygnus.com>.
package Language;
BEGIN
{
my $prefix = "@prefix@";
my $perllibdir = $ENV{'perllibdir'} || "@datadir@/@PACKAGE@";
unshift @INC, "$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' => '$',
# Flag to require compilation without linking (-c).
'compile_flag' => '$',
'derived_autodep' => '$',
'extensions' => '@',
'flags' => '$',
# 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' => '$');
sub finish ($)
{
my ($self) = @_;
if (defined $self->_finish)
{
&{$self->_finish} ();
}
}
package Automake;
require 5.005;
use strict 'vars', 'subs';
use File::Basename;
use IO::File;
my $me = basename ($0);
## ----------- ##
## 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 = "@VERSION@";
my $PACKAGE = "@PACKAGE@";
my $prefix = "@prefix@";
my $libdir = "@datadir@/@PACKAGE@";
# 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 $AM_PACKAGE_VERSION_PATTERN = '^\s*\[?([^]\s]+)\]?\s*$';
# 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+)';
# Constants to define the "strictness" level.
my $FOREIGN = 0;
my $GNU = 1;
my $GNITS = 2;
# Values for AC_CANONICAL_*
my $AC_CANONICAL_HOST = 1;
my $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.
my $MOSTLY_CLEAN = 0;
my $DIST_CLEAN = 1;
# Files installed by libtoolize.
my @libtoolize_files = ('ltmain.sh', 'config.guess', 'config.sub');
# ltconfig appears here for compatibility with old versions of libtool.
my @libtoolize_sometimes = ('ltconfig', 'ltcf-c.sh', 'ltcf-cxx.sh',
'ltcf-gcj.sh');
# Commonly found files we look for and automatically include in
# DISTFILES.
my @common_files =
(
'README', 'THANKS', 'TODO', 'NEWS', 'COPYING', 'COPYING.LIB',
'INSTALL', 'ABOUT-NLS', 'ChangeLog', 'configure.ac',
'configure.in', 'configure', 'config.guess', 'config.sub',
'AUTHORS', 'BACKLOG', 'ABOUT-GNU', 'libversion.in',
'mdate-sh', 'mkinstalldirs', 'install-sh', 'texinfo.tex',
'ansi2knr.c', 'ansi2knr.1', 'elisp-comp',
# ltconfig appears here for compatibility with old versions
# of libtool.
'ylwrap', 'acinclude.m4', @libtoolize_files, @libtoolize_sometimes,
'missing', 'depcomp', 'compile', 'py-compile'
);
# Commonly used files we auto-include, but only sometimes.
my @common_sometimes =
(
'aclocal.m4', 'acconfig.h', 'config.h.top',
'config.h.bot', 'stamp-h.in', 'stamp-vti'
);
# Copyright on generated Makefile.ins.
my $gen_copyright = "\
# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
# 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;
# Directories installed during 'install-exec' phase.
my %exec_dir_p =
(
'bin' => 1,
'sbin' => 1,
'libexec' => 1,
'data' => 0,
'sysconf' => 1,
'localstate' => 1,
'lib' => 1,
'info' => 0,
'man' => 0,
'include' => 0,
'oldinclude' => 0,
'pkgdata' => 0,
'pkglib' => 1,
'pkginclude' => 0
);
# 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' => "use `AM_TYPE_PTRDIFF_T'",
'ud_PATH_LISPDIR' => "use `AM_PATH_LISPDIR'",
'ud_GNU_GETTEXT' => "use `AM_GNU_GETTEXT'",
# Now part of autoconf proper, under a different name.
'AM_FUNC_FNMATCH' => "use `AC_FUNC_FNMATCH'",
'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' => "use `AC_EXEEXT'",
'AM_CYGWIN32' => "use `AC_CYGWIN'",
'AM_MINGW32' => "use `AC_MINGW32'",
'AM_FUNC_MKTIME' => "use `AC_FUNC_MKTIME'",
# These aren't quite obsolete.
# 'md_PATH_PROG',
);
# Regexp to match the above macros.
my $obsolete_rx = '(\b' . join ('\b|\b', 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;
# TRUE if in verbose mode.
my $verbose = 0;
# 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. @config_fullnames holds the
# name which appears in AC_CONFIG_HEADER, colon and all.
# @config_names holds the file names. @config_headers holds the '.in'
# files. Ordinarily these are similar, but they can be different if
# the weird "NAME:FILE" syntax is used.
my @config_fullnames = ();
my @config_names = ();
my @config_headers = ();
# Line number at which AC_CONFIG_HEADER appears in configure.ac.
my $config_header_line = 0;
# 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_OUTPUT without Makefile.am, and their outputs.
my @other_input_files = ();
# Line number at which AC_OUTPUT seen.
my $ac_output_line = 0;
# List of directories to search for configure-required files. This
# can be set by AC_CONFIG_AUX_DIR.
my @config_aux_path = ('.', '..', '../..');
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;
# Line number at which AM_GNU_GETTEXT seen.
my $ac_gettext_line = 0;
# Whether ALL_LINGUAS has been seen.
my $seen_linguas = '';
# The actual text.
my $all_linguas = '';
# Line number at which it appears.
my $all_linguas_line = 0;
# TRUE if AC_DECL_YYTEXT was seen.
my $seen_decl_yytext = 0;
# TRUE if we've seen AC_CANONICAL_(HOST|SYSTEM). The presence of
# AC_CHECK_TOOL also sets this.
my $seen_canonical = 0;
# TRUE if we've seen AC_PROG_LIBTOOL.
my $seen_libtool = 0;
my $libtool_line = 0;
# TRUE if we've seen AM_MAINTAINER_MODE.
my $seen_maint_mode = 0;
# Actual version we've seen.
my $package_version = '';
# Line number where we saw version definition.
my $package_version_line = 0;
# TRUE if we've seen AM_PATH_LISPDIR.
my $seen_lispdir = 0;
# TRUE if we've seen AM_PATH_PYTHON.
my $seen_pythondir = 0;
# TRUE if we've seen AC_EXEEXT.
my $seen_exeext = 0;
# TRUE if we've seen AC_OBJEXT.
my $seen_objext = 0;
# 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;
# TRUE if we've seen AM_INIT_AUTOMAKE.
my $seen_init_automake = 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 = ();
# Charsets used by maintainer and in distribution. MAINT_CHARSET is
# handled in a funny way: if seen in the top-level Makefile.am, it is
# used for every directory which does not specify a different value.
# The rationale here is that some directories (eg gettext) might be
# distributions of other packages, and thus require their own charset
# info. However, the DIST_CHARSET must be the same for the entire
# package; it can only be set at top-level.
# FIXME: this yields bugs when rebuilding. What to do? Always
# read (and sometimes discard) top-level Makefile.am?
my $maint_charset = '';
my $dist_charset = 'utf8'; # recode doesn't support this yet.
# 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,
);
################################################################
## ------------------------------------------ ##
## 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,
# - $var_line{$VAR} is where it has been 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_line;
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;
# 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 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;
# Per Makefile.am.
my $local_maint_charset;
# All yacc and lex source filenames for this directory. Use
# filenames instead of raw count so that multiple instances are
# counted correctly (eg one yacc file can appear in multiple
# programs without harm).
my %yacc_sources;
my %lex_sources;
# 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.
my %de_ansi_files;
# This maps the source extension of a suffix rule to its
# corresponding output 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;
# 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;
## --------------------------------- ##
## Forward subroutine declarations. ##
## --------------------------------- ##
sub register_language (%);
sub file_contents_internal ($$%);
# &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_line = ();
%var_comment = ();
%var_type = ();
%var_is_am = ();
%content_seen = ();
%targets = ();
%target_conditional = ();
@cond_stack = ();
@include_stack = ();
$relative_dir = '';
$am_relative_dir = '';
%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 = ();
%directory_map = ();
%dep_files = ();
$strictness = $default_strictness;
$strictness_name = $default_strictness_name;
%options = ();
$use_dependencies = $cmdline_use_dependencies;
$local_maint_charset = $maint_charset;
%yacc_sources = ();
%lex_sources = ();
@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 = ();
$get_object_extension_was_run = 0;
%compile_clean_files = ();
}
################################################################
# Initialize our list of languages that are internally supported.
# C.
register_language ('name' => 'c',
'Name' => 'C',
'config_vars' => ['CC'],
'ansi' => 1,
'autodep' => '',
'flags' => 'CFLAGS',
'compiler' => 'COMPILE',
'compile' => '$(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 { });
# For now, yacc and lex can't be handled on a per-exe basis.
# Yacc (C & C++).
register_language ('name' => 'yacc',
'Name' => 'Yacc',
'ansi' => 1,
'config_vars' => ['YACC'],
'derived_autodep' => 'yes',
'extensions' => ['y'],
'_finish' => \&lang_yacc_finish);
register_language ('name' => 'yaccxx',
'Name' => 'Yacc (C++)',
'config_vars' => ['YACC'],
'linker' => 'CXXLINK',
'derived_autodep' => 'yes',
'extensions' => ['y++', 'yy', 'yxx', 'ypp'],
'_finish' => \&lang_yacc_finish);
# Lex (C & C++).
register_language ('name' => 'lex',
'Name' => 'Lex',
'ansi' => 1,
'config_vars' => ['LEX'],
'derived_autodep' => 'yes',
'extensions' => ['l'],
'_finish' => \&lang_lex_finish);
register_language ('name' => 'lexxx',
'Name' => 'Lex (C++)',
'config_vars' => ['LEX'],
'linker' => 'CXXLINK',
'derived_autodep' => 'yes',
'extensions' => ['l++', 'll', 'lxx', 'lpp'],
'_finish' => \&lang_lex_finish);
# Assembler.
register_language ('name' => 'asm',
'Name' => 'Assembler',
'config_vars' => ['AS', 'ASFLAGS'],
'flags' => 'ASFLAGS',
# Users can set AM_ASFLAGS to includes DEFS, INCLUDES,
# or anything else required. They can also set AS.
'compile' => '$(AS) $(AM_ASFLAGS) $(ASFLAGS)',
'compiler' => 'ASCOMPILE',
'compile_flag' => '-c',
'extensions' => ['s', 'S'],
# With assembly we still use the C linker.
'_finish' => \&lang_c_finish);
# Fortran 77
register_language ('name' => 'f77',
'Name' => 'Fortran 77',
'linker' => 'F77LINK',
'link' => '$(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 "$me: no `Makefile.am' found or specified\n"
if ! @input_files;
# Now do all the work on each file.
# This guy must be local otherwise it's private to the loop.
use vars '$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);
}
}
exit $exit_status;
# FIXME: This should be `my'ed next to its subs.
use vars '%require_file_found';
################################################################
# prog_error (@PRINT-ME)
# ----------------------
# Signal a programming error, display PRINT-ME, and exit 1.
sub prog_error (@)
{
print STDERR "$me: programming error: @_\n";
exit 1;
}
# @RES
# uniq (@LIST)
# ------------
# Return LIST with no duplicates.
sub uniq (@)
{
my @res = ();
my %seen = ();
foreach my $item (@_)
{
if (! defined $seen{$item})
{
$seen{$item} = 1;
push (@res, $item);
}
}
return @res;
}
# subst ($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) || '.';
}
################################################################
# Parse command line.
sub parse_arguments ()
{
# Start off as gnu.
&set_strictness ('gnu');
use Getopt::Long;
Getopt::Long::config ("bundling");
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;
foreach my $arg (@ARGV)
{
# 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})
{
&am_line_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 ($relative_dir eq '.')
{
# libtool requires some files.
&require_conf_file_with_conf_line ($libtool_line, $FOREIGN,
@libtoolize_files)
if $seen_libtool;
# AC_CANONICAL_HOST and AC_CANONICAL_SYSTEM need config.guess and
# config.sub.
&require_config_file ($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');
# If OBJEXT/EXEEXT were not set in configure.in, do it, it
# simplifies our task, and anyway starting with Autoconf 2.50, it
# will always be defined, and this code will be dead.
$output_vars .= "EXEEXT =\n"
unless $seen_exeext;
$output_vars .= "OBJEXT = o\n"
unless $seen_objext;
# 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, $makefile, @secondary_inputs);
&handle_gettext;
&handle_libraries;
&handle_ltlibraries;
&handle_programs;
&handle_scripts;
# This must run first so that the ANSI2KNR definition is generated
# before it is used by the _.c rules. This works around an
# obscure bug.
&handle_compile;
# This must be run after all the sources are scanned.
&handle_languages;
# Re-init SOURCES. FIXME: other code shouldn't depend on this
# (but currently does).
macro_define ('SOURCES', 1, '', 'TRUE',
join (' ', @sources), 'internal');
&define_pretty_variable ('DIST_SOURCES', '', @dist_sources);
&handle_multilib;
&handle_texinfo;
&handle_emacs_lisp;
&handle_python;
&handle_java;
&handle_man_pages;
&handle_data;
&handle_headers;
&handle_subdirs;
&handle_tags;
&handle_minor_options;
&handle_tests;
# This must come after most other rules.
&handle_dist ($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);
}
}
my $gm_file = new IO::File "> $out_file";
if (! $gm_file)
{
warn "$me: ${am_file}.in: cannot write: $!\n";
$exit_status = 1;
return;
}
print "$me: creating ", $makefile, ".in\n" if $verbose;
# In case we're running under MSWindows, don't write with CRLF
# (as it causes problems for the dependency-file extraction in
# AM_OUTPUT_DEPENDENCY_COMMANDS).
binmode $gm_file;
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;
if (! $gm_file->close)
{
warn "$me: $am_file.in: cannot close: $!\n";
$exit_status = 1;
return;
}
}
################################################################
# Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
sub handle_options
{
if (&variable_defined ('AUTOMAKE_OPTIONS'))
{
foreach (&variable_value_as_list ('AUTOMAKE_OPTIONS', ''))
{
$options{$_} = 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' || $_ eq 'nostdinc')
{
# Explicitly recognize these.
}
elsif ($_ eq 'no-dependencies')
{
$use_dependencies = 0;
}
elsif (/(\d+)\.(\d+)([a-z]?)(-[A-Za-z0-9]+)?/)
{
# Got a version number.
my ($rmajor, $rminor, $ralpha, $rfork) = ($1, $2, $3, $4);
&prog_error ("version is incorrect: $VERSION")
if $VERSION !~ /(\d+)\.(\d+)([a-z]?)(-[A-Za-z0-9]+)?/;
my ($tmajor, $tminor, $talpha, $tfork) = ($1, $2, $3, $4);
$rfork ||= '';
$tfork ||= '';
# 2.0 is better than 1.0.
# 1.2 is better than 1.1.
# 1.2a is better than 1.2.
# If we require 3.4n-foo then we require something
# >= 3.4n, with the `foo' fork identifier.
if ($rmajor > $tmajor
|| ($rmajor == $tmajor && $rminor > $tminor)
|| ($rminor == $tminor && $rminor == $tminor
&& $ralpha gt $talpha)
|| ($rfork ne '' && $rfork ne $tfork))
{
&am_line_error ('AUTOMAKE_OPTIONS',
"require version $_, but have $VERSION");
return 1;
}
}
else
{
&am_line_error ('AUTOMAKE_OPTIONS',
"option `" . $_ . "\' not recognized");
}
}
}
if ($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) $config_aux_dir/depcomp");
&require_config_file ($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");
}
$output_rules .= &file_contents ('depend');
}
}
else
{
&define_variable ('depcomp', '');
}
my %done;
# Is the c linker needed?
my $needs_c = 0;
foreach my $ext (sort keys %extension_seen)
{
my $lang = $languages{$extension_map{$ext}};
# 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' => $seen_libtool,
'AMDEP' => $AMDEP,
'-c' => $lang->compile_flag || '');
# Generate the appropriate rules for this extension.
if ($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'});
$output_rules .=
file_contents ('depend2',
%transform,
'GENERIC' => 1,
'BASE' => '$*',
'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) = split (' ', $file);
# 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}";
(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';
# 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 ('depend2',
(%transform,
'GENERIC' => 0,
'BASE' => $obj,
'SOURCE' => $source,
'OBJ' => "$obj.o",
'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);
# 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 ($languages{'c'});
}
}
# Output a rule to build from a YACC source. The output from YACC is
# compiled with C or C++, depending on the extension of the YACC file.
sub output_yacc_build_rule
{
my ($yacc_suffix, $use_ylwrap) = @_;
(my $c_suffix = $yacc_suffix) =~ tr/y/c/;
# Generate rule for c/c++.
$output_rules .= &file_contents ('yacc',
('YLWRAP' => $use_ylwrap,
'YACC_SUFFIX' => $yacc_suffix,
'C_SUFFIX' => $c_suffix));
}
sub output_lex_build_rule
{
my ($lex_suffix, $use_ylwrap) = @_;
(my $c_suffix = $lex_suffix) =~ tr/l/c/;
$output_rules .= &file_contents ('lex',
('YLWRAP' => $use_ylwrap,
'LEX_SUFFIX' => $lex_suffix,
'C_SUFFIX' => $c_suffix));
}
# Check to make sure a source defined in LIBOBJS is not explicitly
# mentioned. This is a separate function (as opposed to being inlined
# in handle_source_transform) because it isn't always appropriate to
# do this check.
sub check_libobjs_sources
{
my ($one_file, $unxformed) = @_;
foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
'dist_EXTRA_', 'nodist_EXTRA_')
{
my @files;
if (&variable_defined ($prefix . $one_file . '_SOURCES'))
{
@files = &variable_value_as_list (($prefix
. $one_file . '_SOURCES'),
'all');
}
elsif ($prefix eq '')
{
@files = ($unxformed . '.c');
}
else
{
next;
}
foreach my $file (@files)
{
if (defined $libsources{$file})
{
&am_line_error ($prefix . $one_file . '_SOURCES',
"automatically discovered file `$file' should not be explicitly mentioned");
}
}
}
}
# ($LINKER, @OBJECTS)
# handle_single_transform_list ($VAR, $DERIVED, $OBJ, @FILES)
# -----------------------------------------------------------
# Does much of the actual work for handle_source_transform.
# Arguments are:
# $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
# $LINKER is name of linker to use (empty string for default linker)
# @OBJECTS are names of objects
sub handle_single_transform_list ($$$@)
{
my ($var, $derived, $obj, @files) = @_;
my @result = ();
my $nonansi_obj = $obj;
$nonansi_obj =~ s/\$U//g;
my %linkers_used = ();
# Turn sources into objects.
foreach (@files)
{
# Configure substitutions in _SOURCES variables are errors.
if (/^\@.*\@$/)
{
&am_line_error ($var, "$var includes configure substitution `$_'");
next;
}
# If the source file is in a subdirectory then the `.o' is
# put into the current directory.
# Split file name into base and extension.
next if ! /^(?:(.*)\/)?([^\/]*)\.(.*)$/;
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);
$extension = &derive_suffix ($extension);
my $lang = $languages{$extension_map{$extension}};
if ($lang)
{
&saw_extension ($extension);
# Found the language, so see what it says.
my $subr = 'lang_' . $lang->name . '_rewrite';
# Note: computed subr call.
my $r = & $subr ($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 = $lang->ansi ? $obj : $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 . '-' . $object;
&require_file ($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 ($this_obj_ext));
push (@{$lang_specific_files{$lang->name}},
"$derived $full $obj_sans_ext");
}
}
elsif ($extension eq 'o')
{
# This is probably the result of a direct suffix rule.
# In this case we just accept the rewrite. FIXME:
# this fails if we want libtool objects.
$object = $base . '.' . $extension;
$linker = '';
}
else
{
# No error message here. Used to have one, but it was
# very unpopular.
next;
}
$linkers_used{$linker} = 1;
push (@result, $object);
if (defined $object_map{$object})
{
if ($object_map{$object} ne $full)
{
&am_error ("object `$object' created by `$full' and `$object_map{$object}'");
}
}
else
{
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 $DIRECTORY is somewhere in the
# project
# We don't allow `..' in object file names for
# *any* source, not just Java. For Java it just
# doesn't make sense, but in general it is
# a problem because we can't pick a good name for
# the .deps entry.
if ($object =~ /(\/|^)\.\.\//)
{
&am_error ("`$full' contains `..' component but should not");
}
# Make sure object is removed by `make mostlyclean'.
$compile_clean_files{$object} = $MOSTLY_CLEAN;
push (@dep_list, $directory . '/.dirstamp');
# If we're generating dependencies, we also want
# to make sure that the appropriate subdir of the
# .deps directory is created.
if ($use_dependencies)
{
push (@dep_list, '.deps/' . $directory . '/.dirstamp');
}
if (! defined $directory_map{$directory})
{
$directory_map{$directory} = 1;
# Directory must be removed by `make distclean'.
$compile_clean_files{$directory . "/.dirstamp"} =
$DIST_CLEAN;
$output_rules .= ($directory . "/.dirstamp:\n"
. "\t\@\$(mkinstalldirs) $directory\n"
. "\t\@: > $directory/.dirstamp\n");
if ($use_dependencies)
{
$output_rules .= ('.deps/' . $directory
. "/.dirstamp:\n"
. "\t\@\$(mkinstalldirs) .deps/$directory\n"
. "\t\@: > .deps/$directory/.dirstamp\n");
}
}
}
&pretty_print_rule ($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'
|| $lang->derived_autodep eq 'yes'))
{
my $depfile = $object;
$depfile =~ s/\.([^.]*)$/.P$1/;
$depfile =~ s/\$\(OBJEXT\)$/o/;
$dep_files{'$(DEPDIR)/' . $depfile} = 1;
}
}
return (&resolve_linker (%linkers_used), @result);
}
# Handle SOURCE->OBJECT transform for one program or library.
# Arguments are:
# canonical (transformed) name of object to build
# actual name of object to build
# object extension (ie either `.o' or `$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 ($one_file . "_OBJECTS"))
{
&am_line_error ($one_file . '_OBJECTS',
$one_file . '_OBJECTS', 'should not be defined');
# No point in continuing.
return;
}
my %used_pfx = ();
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 $prefix =~ /EXTRA_/;
push (@sources, '$(' . $prefix . $one_file . "_SOURCES)");
push (@dist_sources, '$(' . $prefix . $one_file . "_SOURCES)")
unless $prefix =~ /^nodist_/;
foreach my $cond (variable_conditions ($var))
{
my @files = &variable_value_as_list ($var, $cond);
my ($temp, @result) =
&handle_single_transform_list ($var, $one_file, $obj,
@files);
# If there are no files to compile, don't require a linker (yet).
$linker ||= $temp
if @files;
# Define _OBJECTS conditionally.
&define_pretty_variable ($xpfx . $one_file . '_OBJECTS',
$cond, @result)
unless $prefix =~ /EXTRA_/;
}
}
my @keys = sort keys %used_pfx;
if (scalar @keys == 0)
{
&define_variable ($one_file . "_SOURCES", $unxformed . ".c");
push (@sources, $unxformed . '.c');
push (@dist_sources, $unxformed . '.c');
my ($temp, @result) =
&handle_single_transform_list ($one_file . '_SOURCES',
$one_file, $obj,
"$unxformed.c");
$linker = $temp if $linker eq '';
&define_pretty_variable ($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 $cond (&variable_conditions ($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 $lsearch (&variable_value_as_list ($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 $lsearch =~ /^-dl(pre)?open$/;
&am_line_error ($var, "linker flags such as `$lsearch' belong in `${1}LDFLAGS");
}
else
{
# Only get this error once.
$flagvar = 1;
&am_line_error ($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 $myobjext = ($1 ? 'l' : '') . 'o';
push (@dep_list, $lsearch);
$seen_libobjs = 1;
if (! keys %libsources
&& ! &variable_defined ($1 . 'LIBOBJS'))
{
&am_line_error ($var, "\@$1" . "LIBOBJS\@ seen but never set in `$configure_ac'");
}
foreach my $iter (keys %libsources)
{
if ($iter =~ /\.([cly])$/)
{
&saw_extension ($1);
&saw_extension ('c');
}
if ($iter =~ /\.h$/)
{
&require_file_with_line ($var, $FOREIGN, $iter);
}
elsif ($iter ne 'alloca.c')
{
my $rewrite = $iter;
$rewrite =~ s/\.c$/.P$myobjext/;
$dep_files{'$(DEPDIR)/' . $rewrite} = 1;
($rewrite = $iter) =~ s/(\W)/\\$1/g;
$rewrite = "^" . $rewrite . "\$";
# Only require the file if it is not a built source.
if (! &variable_defined ('BUILT_SOURCES')
|| ! grep (/$rewrite/,
&variable_value_as_list ('BUILT_SOURCES',
'all')))
{
&require_file_with_line ($var, $FOREIGN, $iter);
}
}
}
}
elsif ($lsearch =~ /^\@(LT)?ALLOCA\@$/)
{
my $myobjext = ($1 ? 'l' : '') . 'o';
push (@dep_list, $lsearch);
&am_line_error ($var,
"\@$1" . "ALLOCA\@ seen but `AC_FUNC_ALLOCA' not in `$configure_ac'")
if ! defined $libsources{'alloca.c'};
$dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
&require_file_with_line ($var, $FOREIGN, 'alloca.c');
&saw_extension ('c');
}
}
if ($xname ne '' && ! &variable_defined ($xname . '_DEPENDENCIES', $cond))
{
&define_pretty_variable ($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 $xt (@suffixes)
{
&am_line_error ("$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$rules";
if ($seen_libtool)
{
# Output the libtool compilation rules.
$output_rules .= &file_contents ('libtool');
}
# Check for automatic de-ANSI-fication.
if (defined $options{'ansi2knr'})
{
if (! $am_c_prototypes)
{
&am_line_error ('AUTOMAKE_OPTIONS',
"option `ansi2knr' in use but `AM_C_PROTOTYPES' not in `$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_line ('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_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'))
{
&am_line_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';
}
$output_rules .= &file_contents ('program',
('PROGRAM' => $one_file,
'XPROGRAM' => $xname,
'XLINK' => $xlink));
}
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 %valid = &am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
'noinst', 'check');
if (! defined $configure_vars{'RANLIB'})
{
foreach my $key (keys %valid)
{
if (&variable_defined ($key . '_LIBRARIES'))
{
&am_line_error ($key . '_LIBRARIES', "library used but `RANLIB' not defined in `$configure_ac'");
# Only get this error once. If this is ever printed,
# we have a bug.
$configure_vars{'RANLIB'} = 'BUG';
last;
}
}
}
my $seen_libobjs = 0;
foreach my $onelib (@liblist)
{
# Check that the library fits the standard naming convention.
if ($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 ($xlib . '_LDADD'))
{
&am_line_error ($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);
$output_rules .= &file_contents ('library',
('LIBRARY' => $onelib,
'XLIBRARY' => $xlib));
}
if ($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 %valid = &am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
'noinst', 'check');
foreach my $key (keys %valid)
{
if (&variable_defined ($key . '_LTLIBRARIES'))
{
if (!$seen_libtool)
{
&am_line_error ($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';
$seen_libtool = 1;
}
# Get the installation directory of each library.
for (&variable_value_as_list ($key . '_LTLIBRARIES', 'all'))
{
if ($instdirs{$_})
{
&am_error ("`$_' is already going to be installed in `$instdirs{$_}'");
}
else
{
$instdirs{$_} = $key;
}
}
}
}
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 ($xlib . '_LDFLAGS',
'all')))
|| (&variable_defined ('LDFLAGS')
&& grep (/-module/, &variable_value_as_list ('LDFLAGS',
'all'))))
{
# Relax name checking for libtool modules.
$libname_rx = "\.la";
}
if ($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 ($xlib . '_LDADD'))
{
&am_line_error ($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)');
}
$output_rules .= &file_contents ('ltlibrary',
('LTLIBRARY' => $onelib,
'XLTLIBRARY' => $xlib,
'RPATH' => $rpath,
'XLINK' => $xlink));
}
if ($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
{
foreach my $varname (keys %var_value)
{
foreach my $primary ('_SOURCES', '_LIBADD', '_LDADD', '_LDFLAGS',
'_DEPENDENCIES')
{
if ($varname =~ /$primary$/ && ! $content_seen{$varname})
{
&am_line_error ($varname,
"invalid unused variable name: `$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');
my $scripts_installed = 0;
# Set $scripts_installed if appropriate. Make sure we only find
# scripts which are actually installed -- this is why we can't
# simply use the return value of am_install_var.
my %valid = &am_primary_prefixes ('SCRIPTS', 1, 'bin', 'sbin',
'libexec', 'pkgdata',
'noinst', 'check');
foreach my $key (keys %valid)
{
if ($key ne 'noinst'
&& $key ne 'check'
&& &variable_defined ($key . '_SCRIPTS'))
{
$scripts_installed = 1;
# push (@check_tests, 'check-' . $key . 'SCRIPTS');
}
}
}
# ($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.
my @clean_suffixes = ('aux', 'dvi', 'log', 'ps', 'toc',
# grep new.*index texinfo.tex
'cp', 'fn', 'ky', 'vr', 'tp', 'pg');
# There are predefined indexes which don't follow the regular rules.
my %predefined_index =
(
# cindex => *.cps
'c' => 'cps', 'f' => 'fns', 'k' => 'kys',
'v' => 'vrs', 't' => 'tps', 'p' => 'pgs'
);
# There are commands which include a hidden index command.
my %hidden_index =
(
# deffn => *.fns.
'fn' => 'fns', 'un' => 'fns',
'typefn' => 'fns', 'typefun' => 'fns',
'mac' => 'fns', 'spec' => 'fns',
'op' => 'fns', 'typeop' => 'fns',
'method' => 'fns', 'typemethod' => 'fns',
'vr' => 'vrs', 'var' => 'vrs',
'typevr' => 'vrs', 'typevar' => 'vrs',
'opt' => 'vrs',
'cv' => 'vrs',
'ivar' => 'vrs', 'typeivar' => 'vrs',
'tp' => 'tps'
);
# Indexes stored into another one. In this case, the *.??s file
# is not created.
my @syncodeindexes = ();
my $texi = new IO::File ("< $filename");
if (! $texi)
{
&am_error ("couldn't open `$filename': $!");
return '';
}
print "$me: reading $filename\n" if $verbose;
my ($outfile, $vfile);
while ($_ = $texi->getline)
{
if (/^\@setfilename +(\S+)/)
{
$outfile = $1;
if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
{
&am_file_error ($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";
}
}
$texi->close;
if ($outfile eq '')
{
&am_error ("`$filename' missing \@setfilename");
return;
}
my $infobase = basename ($filename);
$infobase =~ s/\.te?xi(nfo)?$//;
# FIXME: I don't understand why, but I can't use "$infobase.$_" => 1.
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
{
&am_line_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'))
{
&am_line_error ('html_TEXINFOS',
"HTML generation not yet supported");
return (0, '');
}
my @texis = &variable_value_as_list ('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;
&require_conf_file_with_line ('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 . ": "
. join (' ', @texi_deps)
. "\n" . $infobase . ".dvi: "
. join (' ', @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", join (' ', @info_deps_list));
&define_variable ("DVIS", join (' ', @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_line ('info_TEXINFOS', $FOREIGN,
'texinfo.tex');
}
else
{
&require_file_with_line ('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
{
&am_line_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'))
{
$vlist{'$(' . $pfx . 'man_MANS)'} = 1;
foreach (&variable_value_as_list ($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));
}
$output_vars .= &file_contents ('mans-vars',
('MANS' => join (' ', sort keys %vlist)));
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 $one_hdr (@config_headers)
{
if ($relative_dir eq dirname ($one_hdr))
{
# The config header is in this directory. So require it.
$config .= ' ' if $config;
$config .= basename ($one_hdr);
}
}
$output_rules .= &file_contents ('tags',
('CONFIG' => $config,
'DIRS' => join (' ', @tag_deps)));
&examine_variable ('TAGS_DEPENDENCIES');
}
elsif (&variable_defined ('TAGS_DEPENDENCIES'))
{
&am_line_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
{
return unless $seen_multilib;
$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;
# Set up maint_charset.
$local_maint_charset = &variable_value ('MAINT_CHARSET')
if &variable_defined ('MAINT_CHARSET');
$maint_charset = $local_maint_charset
if $relative_dir eq '.';
if (&variable_defined ('DIST_CHARSET'))
{
&am_line_error ('DIST_CHARSET',
"DIST_CHARSET defined but no MAINT_CHARSET defined")
if ! $local_maint_charset;
if ($relative_dir eq '.')
{
$dist_charset = &variable_value ('DIST_CHARSET')
}
else
{
&am_line_error ('DIST_CHARSET',
"DIST_CHARSET can only be defined at top level");
}
}
# Look for common files that should be included in distribution.
foreach my $cfile (@common_files)
{
if (-f ($relative_dir . "/" . $cfile))
{
&push_dist_common ($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 (' ' , $configure_dist_common))
{
if (! &is_make_dir (dirname ($file)))
{
&push_dist_common ($file);
}
}
}
# Files to distributed. Don't use &variable_value_as_list
# as it recursively expands `$(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.
$handle_dist_run = 1;
# Scan EXTRA_DIST to see if we need to distribute anything from a
# subdir. If so, add it to the list. I didn't want to do this
# originally, but there were so many requests that I finally
# relented.
if (&variable_defined ('EXTRA_DIST'))
{
# FIXME: This should be fixed to work with conditionals. That
# will require only making the entries in %dist_dirs under the
# appropriate condition. This is meaningful if the nature of
# the distribution should depend upon the configure options
# used.
foreach (&variable_value_as_list ('EXTRA_DIST', ''))
{
next if /^\@.*\@$/;
next unless s,/+[^/]+$,,;
$dist_dirs{$_} = 1
unless $_ eq '.';
}
}
# We have to check DIST_COMMON for extra directories in case the
# user put a source used in AC_OUTPUT into a subdir.
foreach (&variable_value_as_list ('DIST_COMMON', 'all'))
{
next if /^\@.*\@$/;
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 ('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 ('SUBDIRS', 'all'))
{
# Skip directories substituted by configure.
next if $dir =~ /^\@.*\@$/;
if (! -d $am_relative_dir . '/' . $dir)
{
&am_line_error ('SUBDIRS',
"required directory $am_relative_dir/$dir does not exist");
next;
}
&am_line_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 $aclocal = new IO::File ("< aclocal.m4");
if ($aclocal)
{
my $line = $aclocal->getline;
$aclocal->close;
if ($line =~ 'generated automatically by aclocal')
{
$regen_aclocal = 1;
}
}
}
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 $amdir (&variable_value_as_list ('ACLOCAL_AMFLAGS', ''))
{
if ($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);
}
# 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'
=> $local_base,
'MAKEFILE-DEPS'
=> join (' ', @rewritten),
'CONFIG-MAKEFILE'
=> ((($relative_dir eq '.') ? '$@' : '$(subdir)/$@')
. $colon_infile),
'MAKEFILE-IN'
=> $infile,
'MAKEFILE-IN-DEPS'
=> join (' ', @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'
=> $regen_aclocal_m4,
'ACLOCAL_M4_DEPS'
=> join (' ', @aclocal_m4_deps)));
if ($relative_dir eq '.')
{
&push_dist_common ('acconfig.h')
if -f 'acconfig.h';
}
# If we have a configure header, require it.
my @local_fullnames = @config_fullnames;
my @local_names = @config_names;
my $hdr_index = 0;
my $distclean_config = '';
foreach my $one_hdr (@config_headers)
{
my $one_fullname = shift (@local_fullnames);
my $one_name = shift (@local_names);
$hdr_index += 1;
my $header_dir = dirname ($one_name);
# 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 $header_dir
|| ($relative_dir eq '.' && ! &is_make_dir ($header_dir)))
{
my ($cn_sans_dir, $stamp_dir);
if ($relative_dir eq $header_dir)
{
$cn_sans_dir = basename ($one_name);
$stamp_dir = '';
}
else
{
$cn_sans_dir = $one_name;
if ($header_dir eq '.')
{
$stamp_dir = '';
}
else
{
$stamp_dir = $header_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 $ch_sans_dir;
if (dirname ($one_hdr) eq $relative_dir)
{
$ch_sans_dir = basename ($one_hdr);
}
else
{
$ch_sans_dir = backname ($relative_dir) . '/' . $one_hdr;
}
&require_file_with_conf_line ($config_header_line,
$FOREIGN, $ch_sans_dir);
# Header defined and in this directory.
my @files;
if (-f $one_name . '.top')
{
push (@files, "${cn_sans_dir}.top");
}
if (-f $one_name . '.bot')
{
push (@files, "${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_name = 'stamp-h';
$stamp_name .= "${hdr_index}" if scalar (@config_headers) > 1;
my $out_dir = dirname ($ch_sans_dir);
$output_rules .=
&file_contents ('remake-hdr',
('FILES' => join (' ', @files),
'CONFIG_HEADER' => $cn_sans_dir,
'CONFIG_HEADER_IN' => $ch_sans_dir,
'CONFIG_HEADER_FULL' => $one_fullname,
'STAMP' => "$stamp_dir$stamp_name",
'SRC_STAMP' => "$out_dir/$stamp_name"));
&create ("${relative_dir}/${out_dir}/${stamp_name}.in");
&require_file_with_conf_line ($config_header_line, $FOREIGN,
"${out_dir}/${stamp_name}.in");
$distclean_config .= ' ' if $distclean_config;
$distclean_config .= $cn_sans_dir;
}
}
if ($distclean_config)
{
$output_rules .= &file_contents ('clean-hdr',
('FILES' => $distclean_config));
}
# Set location of mkinstalldirs.
&define_variable ('mkinstalldirs',
('$(SHELL) ' . $config_aux_dir . '/mkinstalldirs'));
&am_line_error ('CONFIG_HEADER',
"`CONFIG_HEADER' is an anachronism; now determined from `$configure_ac'")
if &variable_defined ('CONFIG_HEADER');
my $config_header = '';
foreach my $one_name (@config_names)
{
# Generate CONFIG_HEADER define.
my $one_hdr;
if ($relative_dir eq dirname ($one_name))
{
$one_hdr = basename ($one_name);
}
else
{
$one_hdr = "\$(top_builddir)/${one_name}";
}
$config_header .= ' ' if $config_header;
$config_header .= $one_hdr;
}
if ($config_header)
{
&define_variable ("CONFIG_HEADER", $config_header);
}
# 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, $local);
my (@inputs, @rewritten_inputs);
my ($need_rewritten);
if ($lfile =~ /^([^:]*):(.*)$/)
{
# This is the ":" syntax of AC_OUTPUT.
$file = $1;
$local = basename ($file);
@inputs = split (':', $2);
@rewritten_inputs = &rewrite_inputs_into_dependencies (1, @inputs);
$need_rewritten = 1;
}
else
{
# Normal usage.
$file = $lfile;
$local = basename ($file);
@inputs = ($file . '.in');
@rewritten_inputs =
&rewrite_inputs_into_dependencies (1, @inputs);
$need_rewritten = 0;
}
# Make sure the dist directory for each input file is created.
# We only have to do this at the topmost level though. This
# is a bit ugly but it easier than spreading out the logic,
# especially in cases like AC_OUTPUT(foo/out:bar/in), where
# there is no Makefile in bar/.
if ($relative_dir eq '.')
{
foreach (@inputs)
{
$dist_dirs{dirname ($_)} = 1;
}
}
# We skip any automake input files, as they are handled
# elsewhere. We also 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.
next if -f $file . '.am';
my $fd = dirname ($file);
if ($fd ne $relative_dir)
{
if ($relative_dir eq '.' && ! &is_make_dir ($fd))
{
$local = $file;
}
else
{
next;
}
}
# Some users have been tempted to put `stamp-h' in the
# AC_OUTPUT line. This won't do the right thing, so we
# explicitly fail here.
if ($local eq 'stamp-h')
{
# FIXME: allow real filename.
&am_conf_error ($configure_ac, $ac_output_line,
'stamp-h should not appear in AC_OUTPUT');
next;
}
$output_rules .= ($local . ': '
. '$(top_builddir)/config.status '
. join (' ', @rewritten_inputs) . "\n"
. "\t"
. 'cd $(top_builddir) && CONFIG_FILES='
. ($relative_dir eq '.' ? '' : '$(subdir)/')
. '$@' . ($need_rewritten
? (':' . join (':', @inputs))
: '')
. ' CONFIG_HEADERS= CONFIG_LINKS= $(SHELL) ./config.status'
. "\n");
push (@actual_other_files, $local);
# Require all input files.
&require_file_with_conf_line ($ac_output_line, $FOREIGN,
&rewrite_inputs_into_dependencies (0, @inputs));
}
# These files get removed by "make clean".
&define_pretty_variable ('CONFIG_CLEAN_FILES', '', @actual_other_files);
}
# Handle C headers.
sub handle_headers
{
my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
'oldinclude', 'pkginclude',
'noinst', 'check');
foreach (@r)
{
next unless /\.(.*)$/;
&saw_extension ($1);
}
}
sub handle_gettext
{
return if ! $seen_gettext || $relative_dir ne '.';
if (! &variable_defined ('SUBDIRS'))
{
&am_conf_error
("AM_GNU_GETTEXT used but SUBDIRS not defined");
return;
}
my @subdirs = &variable_value_as_list ('SUBDIRS', 'all');
&am_line_error ('SUBDIRS',
"AM_GNU_GETTEXT used but `po' not in SUBDIRS")
if ! grep ('po', @subdirs);
&am_line_error ('SUBDIRS',
"AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
if ! grep ('intl', @subdirs);
&require_file_with_conf_line ($ac_gettext_line, $GNU, 'ABOUT-NLS');
# Ensure that each language in ALL_LINGUAS has a .po file, and
# each po file is mentioned in ALL_LINGUAS.
if ($seen_linguas)
{
my %linguas = map { $_ => 1 } split (' ', $all_linguas);
foreach (<po/*.po>)
{
s/^po\///;
s/\.po$//;
&am_line_error ($all_linguas_line,
("po/$_.po exists but `$_' not in `ALL_LINGUAS'"))
if ! $linguas{$_};
}
foreach (keys %linguas)
{
&am_line_error ($all_linguas_line,
"$_ in `ALL_LINGUAS' but po/$_.po does not exist")
if ! -f "po/$_.po";
}
}
else
{
&am_error ("AM_GNU_GETTEXT in `$configure_ac' but `ALL_LINGUAS' not defined");
}
}
# 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');
&am_line_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 ('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 ()
{
$output_rules .=
&file_contents ('install',
('_am_installdirs'
=> variable_value ('_am_installdirs') || ''));
}
# Deal with all and all-am.
sub handle_all ($)
{
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 $one_name (@config_names)
{
push (@all, basename ($one_name))
if dirname ($one_name) 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 $one_name (@config_names)
{
push @local_headers, basename ($one_name)
if dirname ($one_name) 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.
$output_all .= ("all: " . join (' ', @local_headers)
. "\n\t"
. '$(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');
$output_rules .= &file_contents ('clean',
(%transform,
'MCFILES'
# Join with no space to avoid
# spurious `test -z' success at
# runtime.
=> join ('', @maintainer_clean_files),
'MFILES'
# A space is required in the join here.
=> join (' ', @maintainer_clean_files)));
}
# &depend ($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;
$x =~ s/(data|exec)-//;
&am_line_error ($utarg, "use `$x', not `$utarg'");
}
}
if (&target_defined ('install-local'))
{
&am_line_error ('install-local',
"use `install-data-local' or `install-exec-local', "
. "not `install-local'");
}
if (!defined $options{'no-installinfo'}
&& &target_defined ('install-info-local'))
{
&am_line_error ('install-info-local',
"`install-info-local' target defined but "
. "`no-installinfo' option not in use");
}
# Install the -local hooks.
foreach (keys %dependencies)
{
# Hooks are installed on the -am targets.
s/-am$// 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')
{
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');
# Only create site.exp rule if user hasn't already written one.
$output_rules .=
file_contents ('dejagnu', ('SITE-EXP' => ! target_defined ('site.exp')));
}
# Handle TESTS variable and other checks.
sub handle_tests
{
if (defined $options{'dejagnu'})
{
&handle_tests_dejagnu;
}
else
{
foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
{
&am_line_error ($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 ! $seen_lispdir && &variable_defined ('lisp_LISP');
&require_file_with_conf_line ('AM_PATH_LISPDIR', $FOREIGN, 'elisp-comp');
}
# Handle Python
sub handle_python
{
my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
'python', 'noinst');
return if ! @pyfiles;
# Found some python.
&am_error ("`python_PYTHON' defined but `AM_PATH_PYTHON' not in `$configure_ac'")
if ! $seen_pythondir && &variable_defined ('python_PYTHON');
&require_file_with_conf_line ('AM_PATH_PYTHON', $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 %valid = &am_primary_prefixes ('JAVA', 1,
'java', 'noinst', 'check');
my $dir;
foreach my $curs (keys %valid)
{
if (! &variable_defined ($curs . '_JAVA') || $curs eq 'EXTRA')
{
next;
}
if (defined $dir)
{
&am_line_error ($curs . '_JAVA',
"multiple _JAVA primaries in use");
}
$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$/)
{
# FIXME: allow real filename.
&am_conf_line_error ($configure_ac,
$package_version_line,
"version `$package_version' doesn't follow Gnits standards");
}
elsif (defined $1 && -f 'README-alpha')
{
# This means we have an alpha release. See
# GNITS_VERSION_PATTERN for details.
&require_file ($FOREIGN, 'README-alpha');
}
}
}
}
################################################################
my %make_list;
my @make_input_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.
push (@make_input_list, $input);
$make_list{$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 $traces = "$ENV{amtraces} ";
$traces .= ' -t AC_CONFIG_FILES';
$traces .= ' -t AC_LIBSOURCE';
$traces .= ' -t AC_SUBST';
my $tracefh = new IO::File ("$traces |");
if (! $tracefh)
{
die "$me: couldn't open `$traces': $!\n";
}
print "$me: reading $traces\n" if $verbose;
while ($_ = $tracefh->getline)
{
chomp;
my ($file, $line, $macro, @args) = split /:/;
my $here = "$file:$line";
# Alphabetical ordering please.
if ($macro eq 'AC_CONFIG_FILES')
{
# Look at potential Makefile.am's.
&scan_autoconf_config_files ($args[0]);
}
elsif ($macro eq 'AC_LIBSOURCE')
{
my $source = "$args[0].c";
# We should actually also `close' the sources: getopt.c
# wants getopt.h etc. But actually it should be done in the
# macro itself, i.e., we have to first fix Autoconf to extend
# _AC_LIBOBJ_DECL and use it the in various macros.
if (!defined $libsources{$source})
{
print STDERR "traces: discovered $source\n";
$libsources{$source} = $here;
}
}
elsif ($macro eq 'AC_SUBST')
{
if (!defined $configure_vars{$args[0]})
{
print STDERR "traces: discovered AC_SUBST($args[0])\n";
$configure_vars{$args[0]} = $here;
}
}
}
$tracefh->close
|| die "$me: close: $traces: $!\n";
}
# &scan_one_autoconf_file ($FILENAME)
# -----------------------------------
# Scan one file for interesting things. Subroutine of
# &scan_autoconf_files.
sub scan_one_autoconf_file
{
my ($filename) = @_;
my $configfh = new IO::File ("< $filename");
if (! $configfh)
{
die "$me: couldn't open `$filename': $!\n";
}
print "$me: reading $filename\n" if $verbose;
my ($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 (/sinclude\((.*)\)/ && -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 ($1);
$_ = $underscore;
}
# Populate libobjs array.
if (/AC_FUNC_ALLOCA/)
{
$libsources{'alloca.c'} = 1;
}
elsif (/AC_FUNC_GETLOADAVG/)
{
$libsources{'getloadavg.c'} = 1;
}
elsif (/AC_FUNC_MEMCMP/)
{
$libsources{'memcmp.c'} = 1;
}
elsif (/AC_STRUCT_ST_BLOCKS/)
{
$libsources{'fileblocks.c'} = 1;
}
elsif (/A[CM]_REPLACE_GNU_GETOPT/)
{
$libsources{'getopt.c'} = 1;
$libsources{'getopt1.c'} = 1;
}
elsif (/AM_FUNC_STRTOD/)
{
$libsources{'strtod.c'} = 1;
}
elsif (/AM_WITH_REGEX/)
{
$libsources{'rx.c'} = 1;
$libsources{'rx.h'} = 1;
$libsources{'regex.c'} = 1;
$libsources{'regex.h'} = 1;
}
elsif (/AC_FUNC_MKTIME/)
{
$libsources{'mktime.c'} = 1;
}
elsif (/AM_FUNC_ERROR_AT_LINE/)
{
$libsources{'error.c'} = 1;
$libsources{'error.h'} = 1;
}
elsif (/AM_FUNC_OBSTACK/)
{
$libsources{'obstack.c'} = 1;
$libsources{'obstack.h'} = 1;
}
elsif (/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'} = 1;
}
}
}
elsif (/AC_LIBOBJ\(([^)]+)\)/)
{
$libsources{"$1.c"} = 1;
}
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'} = 1;
}
}
if (/$obsolete_rx/o)
{
my $hint = '';
if ($obsolete_macros{$1} ne '')
{
$hint = '; ' . $obsolete_macros{$1};
}
&am_conf_line_error ($filename, $., "`$1' is obsolete$hint");
}
# Process the AC_OUTPUT and AC_CONFIG_FILES macros.
if (! $in_ac_output && s/AC_(OUTPUT|CONFIG_FILES)\s*\(\[?//)
{
$in_ac_output = 1;
$ac_output_line = $.;
}
if ($in_ac_output)
{
my $closing = 0;
if (s/[\]\),].*$//)
{
$in_ac_output = 0;
$closing = 1;
}
# Look at potential Makefile.am's.
&scan_autoconf_config_files ($_);
if ($closing && @make_input_list == 0 && @other_input_files == 0)
{
&am_conf_line_error ($filename, $ac_output_line,
"No files mentioned in `AC_OUTPUT'");
exit 1;
}
}
if (/$AC_CONFIG_AUX_DIR_PATTERN/o)
{
@config_aux_path = &unquote_m4_arg ($1);
$config_aux_dir_set_in_configure_in = 1;
}
# Check for ansi2knr.
$am_c_prototypes = 1 if /AM_C_PROTOTYPES/;
# Check for exe extension stuff.
if (/AC_EXEEXT/)
{
$seen_exeext = 1;
$configure_vars{'EXEEXT'} = $filename . ':' . $.;
}
if (/AC_OBJEXT/)
{
$seen_objext = 1;
$configure_vars{'OBJEXT'} = $filename . ':' . $.;
}
# Check for `-c -o' code.
$seen_cc_c_o = 1 if /AM_PROG_CC_C_O/;
# Check for NLS support.
if (/AM_GNU_GETTEXT/)
{
$seen_gettext = 1;
$ac_gettext_line = $.;
}
# Look for ALL_LINGUAS.
if (/ALL_LINGUAS="(.*)"$/ || /ALL_LINGUAS=(.*)$/)
{
$seen_linguas = 1;
$all_linguas = $1;
$all_linguas_line = $.;
}
# Handle configuration headers. A config header of `[$1]'
# means we are actually scanning AM_CONFIG_HEADER from
# aclocal.m4.
if (/A([CM])_CONFIG_HEADERS?\s*\((.*)\)/
&& $2 ne '[$1]')
{
&am_conf_line_error
($filename, $., "`automake requires `AM_CONFIG_HEADER', not `AC_CONFIG_HEADER'")
if $1 eq 'C';
$config_header_line = $.;
foreach my $one_hdr (split (' ', &unquote_m4_arg ($2)))
{
push (@config_fullnames, $one_hdr);
if ($one_hdr =~ /^([^:]+):(.+)$/)
{
push (@config_names, $1);
push (@config_headers, $2);
}
else
{
push (@config_names, $one_hdr);
push (@config_headers, $one_hdr . '.in');
}
}
}
# Handle AC_CANONICAL_*. Always allow upgrading to
# AC_CANONICAL_SYSTEM, but never downgrading.
$seen_canonical = $AC_CANONICAL_HOST
if ! $seen_canonical
&& (/AC_CANONICAL_HOST/ || /AC_CHECK_TOOL/);
$seen_canonical = $AC_CANONICAL_SYSTEM if /AC_CANONICAL_SYSTEM/;
# 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 ('X_CFLAGS', 'X_LIBS', 'X_EXTRA_LIBS',
'X_PRE_LIBS')
{
$configure_vars{$var} = $filename . ':' . $.
}
}
# This macro handles several different things.
if (/$AM_INIT_AUTOMAKE_PATTERN/o)
{
($package_version = $1) =~ s/$AM_PACKAGE_VERSION_PATTERN/$1/o;
$package_version_line = $.;
$seen_init_automake = 1;
}
if (/AM_PROG_LEX/)
{
$configure_vars{'LEX'} = $filename . ':' . $.;
$seen_decl_yytext = 1;
}
if (/AC_DECL_YYTEXT/ && $filename =~ /configure\.(ac|in)$/)
{
&am_conf_line_warning ($filename, $., "`AC_DECL_YYTEXT' is covered by `AM_PROG_LEX'");
}
if (/AC_PROG_LEX/ && $filename =~ /configure\.(ac|in)$/)
{
&am_conf_line_warning ($filename, $., "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} = $filename . ':' . $.;
}
if (/$AC_CHECK_PATTERN/o)
{
$configure_vars{$3} = $filename . ':' . $.;
}
if (/$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} = $filename . ':' . $.;
}
# Explicitly avoid ANSI2KNR -- we AC_SUBST that in protos.m4,
# but later define it elsewhere. This is pretty hacky. We
# also explicitly avoid INSTALL_SCRIPT and some other
# variables because they are defined in header-vars.am.
# FIXME.
if (/$AC_SUBST_PATTERN/o
&& $1 ne 'ANSI2KNR'
&& $1 ne 'INSTALL_SCRIPT'
&& $1 ne 'INSTALL_DATA')
{
$configure_vars{$1} = $filename . ':' . $.;
}
$seen_decl_yytext = 1 if /AC_DECL_YYTEXT/;
if (/AM_MAINTAINER_MODE/)
{
$seen_maint_mode = 1;
$configure_cond{'MAINTAINER_MODE'} = 1;
}
$seen_lispdir = 1 if /AM_PATH_LISPDIR/;
if (/AM_PATH_PYTHON/)
{
$seen_pythondir = 1;
$configure_vars{'pythondir'} = $filename . ':' . $.;
$configure_vars{'PYTHON'} = $filename . ':' . $.;
}
if (/A(C|M)_PROG_LIBTOOL/)
{
# We're not ready for this yet. People still use a
# libtool with no AC_PROG_LIBTOOL. Once that is the
# dominant version we can reenable this code -- but next
# time by mentioning the macro in %obsolete_macros, both
# here and in aclocal.in.
# if (/AM_PROG_LIBTOOL/)
# {
# &am_conf_line_warning ($filename, $., "`AM_PROG_LIBTOOL' is obsolete, use `AC_PROG_LIBTOOL' instead");
# }
$seen_libtool = 1;
$libtool_line = $.;
$configure_vars{'LIBTOOL'} = $filename . ':' . $.;
$configure_vars{'RANLIB'} = $filename . ':' . $.;
$configure_vars{'CC'} = $filename . ':' . $.;
# 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;
}
$seen_multilib = 1 if (/AM_ENABLE_MULTILIB/);
if (/$AM_CONDITIONAL_PATTERN/o)
{
$configure_cond{$1} = 1;
}
# Check for Fortran 77 intrinsic and run-time libraries.
if (/AC_F77_LIBRARY_LDFLAGS/)
{
$configure_vars{'FLIBS'} = $filename . ':' . $.;
}
}
$configfh->close;
}
# &scan_autoconf_files ()
# -----------------------
# Check whether we use `configure.ac' or `configure.in'.
# Scan it (and possibly `aclocal.m4') for interesting things.
# We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
sub scan_autoconf_files
{
# Reinitialize libsources here. This isn't really necessary,
# since we currently assume there is only one configure.ac. But
# that won't always be the case.
%libsources = ();
warn "$me: both `configure.ac' and `configure.in' present:"
. " ignoring `configure.in'\n"
if -f 'configure.ac' && -f 'configure.in';
$configure_ac = 'configure.in'
if -f 'configure.in';
$configure_ac = 'configure.ac'
if -f 'configure.ac';
die "$me: `configure.ac' or `configure.in' is required\n"
if !$configure_ac;
&scan_one_autoconf_file ($configure_ac);
&scan_one_autoconf_file ('aclocal.m4')
if -f 'aclocal.m4';
if (defined $ENV{'amtraces'})
{
warn '$me: Autoconf traces is an experimental feature';
warn '$me: use at your own risks';
&scan_autoconf_traces ($configure_ac);
}
# Set input and output files if not specified by user.
if (! @input_files)
{
@input_files = @make_input_list;
%output_files = %make_list;
}
@configure_input_files = @make_input_list;
&am_conf_error ("`AM_INIT_AUTOMAKE' must be used")
if ! $seen_init_automake;
# 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.
$relative_dir = '.';
&require_config_file ($FOREIGN, 'install-sh', 'mkinstalldirs', 'missing');
&am_error ("`install.sh' is an anachronism; use `install-sh' instead")
if -f $config_aux_path[0] . '/install.sh';
&require_config_file ($FOREIGN, 'py-compile')
if $seen_pythondir;
# 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;
if (! $seen_maint_mode)
{
&am_conf_error ("`AM_MAINTAINER_MODE' required when --cygnus specified");
}
}
# Do any extra checking for GNU standards.
sub check_gnu_standards
{
if ($relative_dir eq '.')
{
# In top level (or only) directory.
&require_file ($GNU, 'INSTALL', 'NEWS', 'README', 'COPYING',
'AUTHORS', 'ChangeLog');
}
if ($strictness >= $GNU
&& defined $options{'no-installman'})
{
&am_line_error ('AUTOMAKE_OPTIONS',
"option `no-installman' disallowed by GNU standards");
}
if ($strictness >= $GNU
&& defined $options{'no-installinfo'})
{
&am_line_error ('AUTOMAKE_OPTIONS',
"option `no-installinfo' disallowed by GNU standards");
}
}
# Do any extra checking for GNITS standards.
sub check_gnits_standards
{
if ($relative_dir eq '.')
{
# In top level (or only) directory.
&require_file ($GNITS, 'THANKS');
}
}
################################################################
#
# Functions to handle files of each language.
# Each `lang_X_rewrite($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;
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_file ($FOREIGN, 'compile')
if $relative_dir eq '.';
}
$de_ansi_files{$base} = 1;
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 $r = &lang_c_rewrite ($directory, $base, $ext);
my $pfx = '';
if ($r == $LANG_SUBDIR)
{
$pfx = $directory . '/';
}
$yacc_sources{$pfx . $base . '.' . $ext} = 1;
$ext =~ tr/y/c/;
&saw_extension ('c');
# FIXME: nodist.
&push_dist_common ($pfx . $base . '.' . $ext);
return $r;
}
# Rewrite a single yacc++ file.
sub lang_yaccxx_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = $LANG_PROCESS;
my $pfx = '';
if (defined $options{'subdir-objects'})
{
$pfx = $directory . '/';
$r = $LANG_SUBDIR;
}
$yacc_sources{$pfx . $base . '.' . $ext} = 1;
$ext =~ tr/y/c/;
&saw_extension ($ext);
# FIXME: nodist.
&push_dist_common ($pfx . $base . '.' . $ext);
return $r;
}
# Rewrite a single lex file.
sub lang_lex_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = &lang_c_rewrite ($directory, $base, $ext);
my $pfx = '';
if ($r == $LANG_SUBDIR)
{
$pfx = $directory . '/';
}
$lex_sources{$pfx . $base . '.' . $ext} = 1;
$ext =~ tr/l/c/;
&saw_extension ('c');
# FIXME: nodist.
&push_dist_common ($pfx . $base . '.' . $ext);
return $r;
}
# Rewrite a single lex++ file.
sub lang_lexxx_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = $LANG_PROCESS;
my $pfx = '';
if (defined $options{'subdir-objects'})
{
$pfx = $directory . '/';
$r = $LANG_SUBDIR;
}
$lex_sources{$pfx . $base . '.' . $ext} = 1;
$ext =~ tr/l/c/;
&saw_extension ($ext);
# FIXME: nodist.
&push_dist_common ($pfx . $base . '.' . $ext);
return $r;
}
# 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} = 1;
}
}
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.
$output_rules .= ($base . "_.c: $base.c \$(ANSI2KNR)\n\t"
. '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
. '`if test -f $(srcdir)/' . $base . '.c'
. '; then echo $(srcdir)/' . $base . '.c'
. '; else echo ' . $base . '.c; 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 helper for both lex and yacc.
sub yacc_lex_finish_helper
{
return if defined $language_scratch{'lex-yacc-done'};
$language_scratch{'lex-yacc-done'} = 1;
# If there is more than one distinct yacc (resp lex) source file
# in a given directory, then the `ylwrap' program is required to
# allow parallel builds to work correctly. FIXME: for now, no
# line number.
&require_config_file ($FOREIGN, 'ylwrap');
if ($config_aux_dir_set_in_configure_in)
{
&define_variable ('YLWRAP', $config_aux_dir . "/ylwrap");
}
else
{
&define_variable ('YLWRAP', '$(srcdir)/ylwrap');
}
}
sub lang_yacc_finish
{
return if defined $language_scratch{'yacc-done'};
$language_scratch{'yacc-done'} = 1;
my %seen_suffix = ();
my @yacc_files = sort keys %yacc_sources;
my $yacc_count = scalar (@yacc_files);
foreach my $file (@yacc_files)
{
$file =~ /(\..*)$/;
&output_yacc_build_rule ($1, $yacc_count > 1)
if ! defined $seen_suffix{$1};
$seen_suffix{$1} = 1;
$file =~ /^(.*)\.(y|yy|y\+\+|yxx|ypp)$/;
my $base = $1;
my $hname = 'h'; # Always use `.h' for header file.
my $cname = $2;
$cname =~ tr/y/c/;
if ((&variable_defined ('AM_YFLAGS')
&& &variable_value ('AM_YFLAGS') =~ /(^|\s)-d(\s|$)/)
|| (&variable_defined ('YFLAGS')
&& &variable_value ('YFLAGS') =~ /(^|\s)-d(\s|$)/)) {
# Now generate rule to make the header file. This should only
# be generated if `yacc -d' specified.
$output_rules .= "${base}.${hname}: ${base}.${cname}\n";
# 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, "${base}.${hname}");
&push_dist_common ("${base}.${hname}");
}
push (@maintainer_clean_files, "${base}.${cname}");
}
$output_rules .= "\n";
if (&variable_defined ('YACCFLAGS'))
{
&am_line_error ('YACCFLAGS',
"`YACCFLAGS' obsolete; use `YFLAGS' instead");
}
if ($yacc_count > 1)
{
&yacc_lex_finish_helper;
}
}
sub lang_lex_finish
{
return if defined $language_scratch{'lex-done'};
$language_scratch{'lex-done'} = 1;
my %seen_suffix = ();
my $lex_count = scalar (keys %lex_sources);
foreach my $file (sort keys %lex_sources)
{
$file =~ /(\..*)$/;
&output_lex_build_rule ($1, $lex_count > 1)
if (! defined $seen_suffix{$1});
$seen_suffix{$1} = 1;
# 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.
$file =~ /^(.*)\.(l|ll|l\+\+|lxx|lpp)$/;
my $cname;
($cname = $2) =~ tr/l/c/;
push (@maintainer_clean_files, "${1}.${cname}");
}
if (! $seen_decl_yytext)
{
&am_error ("lex source seen but `AC_DECL_YYTEXT' not in `$configure_ac'");
}
if ($lex_count > 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) = @_;
return 'GCJLINK'
if defined $linkers{'GCJLINK'};
return 'CXXLINK'
if defined $linkers{'CXXLINK'};
return 'F77LINK'
if defined $linkers{'F77LINK'};
return 'OBJCLINK'
if defined $linkers{'OBJCLINK'};
return 'LINK';
}
# Called to indicate that an extension was used.
sub saw_extension
{
my ($ext) = @_;
$extension_seen{$ext} = 1;
}
# Called to ask whether source files have been seen . If HEADERS is 1,
# headers can be included.
sub saw_sources_p
{
my ($headers) = @_;
if ($headers)
{
$headers = 0;
}
else
{
$headers = grep ($extension_seen{$_},
@{$languages{'header'}->extensions});
}
return scalar keys %extension_seen > $headers;
}
# 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{'derived_autodep'} = 'no'
unless defined $option{'derived_autodep'};
$option{'linker'} = ''
unless defined $option{'linker'};
my $lang = new Language (%option);
# Fill indexes.
grep ($extension_map{$_} = $lang->name, @{$lang->extensions});
$languages{$lang->name} = $lang;
}
# This function is used to find a path from a user-specified suffix to
# `o' or to some other suffix we recognize internally, eg `cc'.
sub derive_suffix
{
my ($source_ext) = @_;
# FIXME: hard-coding `o' is a mistake. Doing something
# intelligent is harder.
while ($extension_map{$source_ext} eq ''
&& $source_ext ne 'o'
&& 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 (@_);
}
################################################################
# $STRING
# &conditional_string(@COND-STACK)
# --------------------------------
# Build a string de
sub conditional_string
{
my (@stack) = @_;
if (grep (/^FALSE$/, @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
# &conditionals_true_when (@CONDS, @WHENS)
# ----------------------------------------
# Same as above, but true if all the @CONDS are true when *ALL*
# the @WHENS are sufficient.
#
# If there are no @CONDS, then return true, of course. *BUT*, even if there
# are @CONDS but @WHENS is empty, return true. This is counter intuitive,
# and against all the rules of logic, but is needed by the current code.
# FIXME: Do something saner when the logic of conditionals is understood.
sub conditionals_true_when (@@)
{
my (@conds, @whens) = @_;
foreach my $cond (@conds)
{
foreach my $when (@whens)
{
return 0
unless conditional_true_when ($cond, $when);
}
}
return 1;
}
# $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, $where) = @_;
&am_file_error ($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 ($$$)
{
my ($negate, $cond, $where) = @_;
if (! @cond_stack)
{
&am_file_error ($where, "else without if");
return;
}
$cond_stack[$#cond_stack] = condition_negate ($cond_stack[$#cond_stack]);
# If $COND is given, check against it.
if (defined $cond)
{
$cond = "${cond}_TRUE"
unless $cond =~ /^TRUE|FALSE$/;
$cond = condition_negate ($cond)
if $negate;
&am_file_error ($where,
"else reminder ($negate$cond) incompatible with "
. "current conditional: $cond_stack[$#cond_stack]")
if $cond_stack[$#cond_stack] ne $cond;
}
return conditional_string (@cond_stack);
}
# $COND_STRING
# cond_stack_endif ($NEGATE, $COND, $WHERE)
# -----------------------------------------
sub cond_stack_endif ($$$)
{
my ($negate, $cond, $where) = @_;
my $old_cond;
if (! @cond_stack)
{
&am_file_error ($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 $negate;
&am_file_error ($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 ($$)
{
my ($var, $cond) = @_;
foreach my $vcond (keys %{$var_value{$var}})
{
my $message;
if ($vcond eq $cond)
{
$message = "$var multiply defined in condition $cond";
}
elsif (&conditional_true_when ($vcond, $cond))
{
$message = ("$var was already defined in condition $vcond, "
. "which implies condition $cond");
}
elsif (&conditional_true_when ($cond, $vcond))
{
$message = ("$var was already defined in condition $vcond, "
. "which is implied by condition $cond");
}
if ($message)
{
&am_line_error ($var, $message);
macro_dump ($var);
}
}
}
# &macro_define($VAR, $VAR_IS_AM, $TYPE, $COND, $VALUE, $WHERE)
# -------------------------------------------------------------
# The $VAR can go from Automake to user, but not the converse.
sub macro_define ($$$$$$)
{
my ($var, $var_is_am, $type, $cond, $value, $where) = @_;
am_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)
{
am_line_error ($var,
("$var was set with `$var_type{$var}=' "
. "and is now set with `$type='"));
}
}
else
{
if (!defined $var_type{$var} && $type eq '+')
{
am_line_error ($var, "$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 (substr ($var_value{$var}{$cond}, -1) eq "\n")
{
# Insert a backslash before a trailing newline.
$var_value{$var}{$cond} =
substr ($var_value{$var}{$cond}, 0, -1) . "\\\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 the line number. 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_line{$var} = $where
unless defined $var_line{$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.
check_ambiguous_conditional ($var, $cond)
unless ($var_is_am{$var} && !$var_is_am
|| exists $configure_vars{$var});
$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;
}
}
# &variable_delete ($VAR, [@CONDS])
# ---------------------------------
# Forget about $VAR under the conditions @CONDS, or completely if
# @CONDS is empty.
sub variable_delete ($@)
{
my ($var, @conds) = @_;
if (!@conds)
{
delete $var_value{$var};
delete $var_line{$var};
delete $var_is_am{$var};
delete $var_comment{$var};
delete $var_type{$var};
}
else
{
foreach my $cond (@conds)
{
delete $var_value{$var}{$cond};
}
}
}
# &macro_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_line{$var}
? $var_line{$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";
}
}
# &macros_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})
{
if (defined $targets{$var})
{
&am_line_error ($var, "`$var' is a target; expected a variable")
}
# The variable is not defined
return 0;
}
if ($cond && !exists $var_value{$var}{$cond})
{
# The variable is not defined for the given condition.
return 0;
}
# 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;
}
# Mark a variable as examined.
sub examine_variable
{
my ($var) = @_;
&variable_defined ($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 ($)
{
my ($var) = @_;
my %uniqify;
my @uniq_list;
%vars_scanned = ();
foreach my $cond (&variable_conditions_sub ($var, '', ()))
{
next
if $cond eq 'FALSE';
$uniqify{$cond} = 1;
}
@uniq_list = sort by_condition keys %uniqify;
# Note we cannot just do `return sort keys %uniqify', because this
# function is sometimes used in a scalar context.
return @uniq_list;
}
# $BOOLEAN
# &variable_conditionally_defined ($VAR)
# --------------------------------------
sub variable_conditionally_defined ($)
{
my ($var) = @_;
foreach my $cond (variable_conditions ($var))
{
return 1
unless $cond =~ /^TRUE|FALSE$/;
}
return 0;
}
# &variable_conditions_sub ($VAR, $PARENT, @PARENT_CONDS)
# -------------------------------------------------------
# A subroutine of variable_conditions. We only return conditions
# which are true for all the conditions in @PARENT_CONDS.
sub variable_conditions_sub
{
my ($var, $parent, @parent_conds) = @_;
my @new_conds = ();
if (defined $vars_scanned{$var})
{
&am_line_error ($parent, "variable `$var' recursively defined");
return ();
}
$vars_scanned{$var} = 1;
my @this_conds = ();
foreach my $vcond (keys %{$var_value{$var}})
{
next
if ! conditionals_true_when ((@parent_conds), ($vcond));
push (@this_conds, $vcond);
push (@parent_conds, $vcond);
my @subvar_conds = ();
foreach (split (' ', $var_value{$var}{$vcond}))
{
# If a comment seen, just leave.
last if /^#/;
# Handle variable substitutions.
if (/^\$\{(.*)\}$/ || /^\$\((.*)\)$/)
{
push (@subvar_conds,
&variable_conditions_sub ($1, $var, @parent_conds));
}
}
pop (@parent_conds);
# If there are no conditional subvariables, then we want to
# return this condition. Otherwise, we want to return the
# permutations of the subvariables.
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 there are no parents, then this call is the top level call.
if (! $parent)
{
# 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;
}
}
return &variable_conditions_permutations (sort keys %allconds);
}
# 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 ! $ok;
next
if ! conditionals_true_when ((@parent_conds), ($perm));
# 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.
sub variable_conditions_reduce
{
my (@conds) = @_;
my @ret = ();
foreach my $cond (@conds)
{
# FALSE is absorbent.
if ($cond eq 'FALSE')
{
return ('FALSE');
}
elsif (conditionals_true_when (($cond), (@ret)))
{
push (@ret, $cond);
}
}
return @ret;
}
# 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 ($parent)
{
&am_line_error ($parent,
"warning: automake does not support conditional definition of $var in $parent");
}
else
{
&am_line_error ($parent,
"warning: automake does not support $var being defined conditionally");
macro_dump ($var);
}
}
}
# 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 =~ /^([^:]*):([^=]*)=(.*)$/)
{
$varname = $1;
$to = $3;
($from = $2) =~ s/(\W)/\\$1/g;
}
# Find the value.
@temp_list = &variable_value_as_list_worker ($1, $cond, $var);
# Now rewrite the value if appropriate.
if ($from)
{
grep (s/$from$/$to/, @temp_list);
}
push (@result, @temp_list);
}
else
{
push (@result, $_);
}
}
return @result;
}
# Return contents of variable as list, split as whitespace. This will
# recursively follow $(...) and ${...} inclusions. It preserves @...@
# substitutions. If COND is 'all', then all values under all
# conditions should be returned; if COND is a particular condition
# (all conditions are surrounded by @...@) then only the value for
# that condition should be returned; otherwise, warn if VAR is
# conditionally defined. If PARENT is specified, it is the name of
# the including variable; this is only used for error reports.
sub variable_value_as_list_worker
{
my ($var, $cond, $parent) = @_;
my @result = ();
if (! defined $var_value{$var})
{
if (defined $targets{$var})
{
&am_line_error ($var, "`$var' is a target; expected a variable");
}
else
{
&am_line_error ($parent, "variable `$var' not defined");
}
}
elsif (defined $vars_scanned{$var})
{
# `vars_scanned' is a global we use to keep track of which
# variables we've already examined.
&am_line_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 ($var, @conds) = @_;
@conds = sort by_condition keys %{$var_value{$var}}
unless @conds;
$output_vars .= $var_comment{$var}
if defined $var_comment{$var};
foreach my $cond (@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 = sort by_condition keys %{$var_value{$var}}
unless @conds;
$output_vars .= $var_comment{$var}
if defined $var_comment{$var};
foreach my $cond (@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 (' ' , $val));
}
}
# This is just a wrapper for variable_value_as_list_worker that
# initializes the global hash `vars_scanned'. This hash is used to
# avoid infinite recursion.
sub variable_value_as_list
{
my ($var, $cond, $parent) = @_;
%vars_scanned = ();
return &variable_value_as_list_worker ($var, $cond, $parent);
}
# Like define_variable, but the value is a list, and the variable may
# be defined conditionally. The second argument is the conditional
# under which the value should be defined; this should be the empty
# string to define the variable unconditionally. The third argument
# is a list holding the values to use for the variable. The value is
# pretty printed in the output file.
sub define_pretty_variable
{
my ($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, '', $cond, join (' ', @value), undef);
variable_pretty_output ($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) = @_;
my $value = '@' . $var . '@';
&define_variable ($var, $value);
}
# define_compiler_variable ($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. ##
## ---------------- ##
sub rule_define ($$$$)
{
my ($target, $rule_is_am, $cond, $where) = @_;
if (defined $targets{$target}
&& ($cond
? ! defined $target_conditional{$target}
: defined $target_conditional{$target}))
{
&am_line_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} = $where;
}
# Check the rule for being a suffix rule. If so, store in a hash.
if ((my ($source_suffix, $object_suffix)) = ($target =~ $SUFFIX_RULE_PATTERN))
{
$suffix_rules{$source_suffix} = $object_suffix;
print "Sources ending in .$source_suffix become .$object_suffix\n"
if $verbose;
# Set SUFFIXES from suffix_rules.
push @suffixes, ".$source_suffix", ".$object_suffix";
}
}
# See if a target exists.
sub target_defined
{
my ($target) = @_;
return defined $targets{$target};
}
################################################################
# 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 IO::File ("< $amfile");
if (! $am_file)
{
die "$me: couldn't open `$amfile': $!\n";
}
print "$me: reading $amfile\n" if $verbose;
my $spacing = '';
my $comment = '';
my $blank = 0;
while ($_ = $am_file->getline)
{
if (/$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";
$blank = 1;
}
elsif (/$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 = '';
}
else
{
last;
}
}
$output_vars .= $comment . "\n";
$comment = '';
$spacing = "\n";
# 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 $saw_bk = 0;
my $was_rule = 0;
my $last_var_name = '';
my $last_var_type = '';
my $last_var_value = '';
# FIXME: shouldn't use $_ in this loop; it is too big.
while ($_)
{
$_ .= "\n"
unless substr ($_, -1, 1) eq "\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 $new_saw_bk = /\\$/;
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.
$spacing = "\n";
&am_line_error ($., "blank line following trailing backslash")
if $saw_bk;
}
elsif (/$COMMENT_PATTERN/o)
{
# Stick comments before the incoming macro or rule.
$comment .= $spacing . $_;
$spacing = '';
&am_line_error ($., "comment following trailing backslash")
if $saw_bk;
}
elsif ($saw_bk)
{
if ($was_rule)
{
$output_trailer .= &make_condition (@cond_stack);
$output_trailer .= $_;
}
else
{
$last_var_value .= ' '
unless $last_var_value =~ /\s$/;
$last_var_value .= $_;
if (!/\\$/)
{
$var_comment{$last_var_name} .= "$spacing"
if (!defined $var_comment{$last_var_name}
|| substr ($var_comment{$last_var_name}, -1) ne "\n");
$var_comment{$last_var_name} .= "$comment";
$comment = $spacing = '';
macro_define ($last_var_name, 0,
$last_var_type, $cond,
$last_var_value, $.)
if $cond ne 'FALSE';
push (@var_list, $last_var_name);
}
}
}
elsif (/$IF_PATTERN/o)
{
$cond = cond_stack_if ($1, $2, "$amfile:$.");
}
elsif (/$ELSE_PATTERN/o)
{
$cond = cond_stack_else ($1, $2, "$amfile:$.");
}
elsif (/$ENDIF_PATTERN/o)
{
$cond = cond_stack_endif ($1, $2, "$amfile:$.");
}
elsif (/$RULE_PATTERN/o)
{
# Found a rule.
$was_rule = 1;
rule_define ($1, 0, $cond, $.);
$var_line{$1} = $.;
$output_trailer .= $comment . $spacing;
$output_trailer .= &make_condition (@cond_stack);
$output_trailer .= $_;
$comment = $spacing = '';
}
elsif (/$ASSIGNMENT_PATTERN/o)
{
# Found a macro definition.
$was_rule = 0;
$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.
$var_comment{$last_var_name} .= "$spacing"
if (!defined $var_comment{$last_var_name}
|| substr ($var_comment{$last_var_name}, -1) ne "\n");
$var_comment{$last_var_name} .= "$comment";
$comment = $spacing = '';
macro_define ($last_var_name, 0,
$last_var_type, $cond,
$last_var_value, $.)
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.
$was_rule = 1;
$output_trailer .= $comment . $spacing;
$output_trailer .= &make_condition (@cond_stack);
$output_trailer .= $_;
$comment = $spacing = '';
&am_line_error ($., "`#' comment at start of rule is unportable")
if $_ =~ /^\t\s*\#/;
}
$saw_bk = $new_saw_bk;
$_ = $am_file->getline;
}
$output_trailer .= $comment;
if (join (' ', @saved_cond_stack) ne join (' ', @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 automatically by automake "
. $VERSION . " from $am_file_name.\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);
# Ouput 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 IO::File ("< $file");
if (! $fc_file)
{
die "$me: installation error: cannot open `$file'\n";
}
# Looks stupid?
print "$me: reading $file\n"
if $verbose;
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 = '';
# 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.
&am_file_error ($file, "blank line following trailing backslash:\n$_")
if /\\$/;
&am_file_error ($file, "comment following trailing backslash:\n$_")
if /\\#/;
if (/^$/)
{
# Stick empty line before the incoming macro or rule.
$spacing = "\n";
}
elsif (/$COMMENT_PATTERN/mso)
{
# 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)
{
# 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.
# 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.
if (!defined $targets{$targets}
&& $cond ne 'FALSE')
{
$paragraph =~ s/^/make_condition (@cond_stack)/gme;
$result_rules .= "$spacing$comment$paragraph\n";
rule_define ($targets, $is_am, $cond, $file);
}
$comment = $spacing = '';
last;
}
}
}
elsif (/$ASSIGNMENT_PATTERN/mso)
{
my ($var, $type, $val) = ($1, $2, $3);
&am_file_error ($file, "macro `$var' with trailing backslash")
if /\\$/;
# Accumulating variables must not be output.
$var_comment{$var} .= "$spacing"
if (!defined $var_comment{$var}
|| substr ($var_comment{$var}, -1) ne "\n");
$var_comment{$var} .= "$comment";
macro_define ($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')
{
s/^/make_condition (@cond_stack)/gme;
$result_rules .= "$spacing$comment$_\n";
}
$comment = $spacing = '';
}
}
if (join (' ', @saved_cond_stack) ne join (' ', @cond_stack))
{
if (@cond_stack)
{
&am_error ("unterminated conditionals: @cond_stack");
}
else
{
# FIXME: better error message here.
&am_error ("conditionals not nested in include file");
}
}
return ($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 $VALUE,
# - enables/disables ?$TOKEN?.
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 $result;
}
# Find all variable prefixes that are used for install directories. A
# prefix `zar' qualifies iff:
# * `zardir' is a variable.
# * `zar_PRIMARY' is a variable.
sub am_primary_prefixes
{
my ($primary, $can_dist, @prefixes) = @_;
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.
if (! defined $configure_vars{$varname})
{
&am_line_error ($varname,
"invalid variable `$varname': `dist' is forbidden");
}
}
elsif (! defined $valid{$X} && ! &variable_defined ("${X}dir"))
{
# Note that a configure variable is always legitimate.
# It is natural to name such variables after the
# primary, so we explicitly allow it.
if (! defined $configure_vars{$varname})
{
&am_line_error ($varname,
"invalid variable `$varname'");
}
}
else
{
# Ensure all extended prefixes are actually used.
$valid{"$base$dist$X"} = 1;
}
}
}
return %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, $primary, @prefixes) = @args;
# Now that configure substitutions are allowed in where_HOW
# variables, it is an error to actually define the primary. We
# allow `JAVA', as it is customarily used to mean the Java
# interpreter. This is but one of several Java hacks. Similarly,
# `PYTHON' is customarily used to mean the Python interpreter.
&am_line_error ($primary, "`$primary' is an anachronism")
if &variable_defined ($primary)
&& ($primary ne 'JAVA' && $primary ne 'PYTHON');
# Look for misspellings. It is an error to have a variable ending
# in a "reserved" suffix whose prefix is unknown, eg
# "bni_PROGRAMS". However, unusual prefixes are allowed if a
# variable of the same name (with "dir" appended) exists. For
# instance, if the variable "zardir" is defined, then
# "zar_PROGRAMS" becomes valid. This is to provide a little extra
# flexibility in those cases which need it.
my %valid = &am_primary_prefixes ($primary, $can_dist, @prefixes);
# 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 = 0;
foreach my $X (sort keys %valid)
{
my $one_name = $X . '_' . $primary;
next
unless (&variable_defined ($one_name));
my $strip_subdir = 1;
# If subdir prefix should be preserved, do so.
if ($X =~ /^nobase_/)
{
$strip_subdir = 0;
$X =~ s/^nobase_//;
}
my $nodir_name = $X;
# If files should be distributed, do so.
my $dist_p = 0;
if ($can_dist)
{
$dist_p = (($default_dist && $one_name !~ /^nodist_/)
|| (! $default_dist && $one_name =~ /^dist_/));
$nodir_name =~ s/^(dist|nodist)_//;
}
# Append actual contents of where_PRIMARY variable to
# result.
foreach my $rcurs (&variable_value_as_list ($one_name, 'all'))
{
# Skip configure substitutions. Possibly bogus.
if ($rcurs =~ /^\@.*\@$/)
{
if ($X eq 'EXTRA')
{
if (! $warned_about_extra)
{
$warned_about_extra = 1;
&am_line_error ($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, $rcurs);
}
# A blatant hack: we rewrite each _PROGRAMS primary to
# include EXEEXT when in Cygwin32 mode.
if ($primary eq 'PROGRAMS')
{
my @conds = &variable_conditions ($one_name);
my @condvals;
foreach my $cond (@conds)
{
my @one_binlist = ();
my @condval = &variable_value_as_list ($one_name,
$cond);
foreach my $rcurs (@condval)
{
if ($rcurs =~ /\./ || $rcurs =~ /^\@.*\@$/)
{
push (@one_binlist, $rcurs);
}
else
{
push (@one_binlist, $rcurs . '$(EXEEXT)');
}
}
push (@condvals, $cond);
push (@condvals, join (' ', @one_binlist));
}
variable_delete ($one_name);
while (@condvals)
{
my $cond = shift (@condvals);
my @val = split (' ', shift (@condvals));
&define_pretty_variable ($one_name, $cond, @val);
}
}
# "EXTRA" shouldn't be used when generating clean targets,
# all, or install targets.
if ($X eq 'EXTRA')
{
# We used to warn if EXTRA_FOO was defined uselessly,
# but this was annoying.
next;
}
if ($X eq 'check')
{
push (@check, '$(' . $one_name . ')');
}
else
{
push (@used, '$(' . $one_name . ')');
}
# Is this to be installed?
my $install_p = $X ne 'noinst' && $X ne 'check';
# If so, with install-exec? (or install-data?).
my $exec_p = (defined $exec_dir_p {$X}
? $exec_dir_p {$X}
: ($X =~ /exec/));
# 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 = '';
}
# 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_' . $primary))
{
&am_line_error ($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 = ();
# 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.
%require_file_found = ();
# 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);
}
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 ($fullfile);
}
}
# &require_file_internal ($IS_CONFIGURE, $LINE, $MYSTRICT, @FILES)
# ----------------------------------------------------------------
# Verify that the file must exist in the current directory.
# $MYSTRICT is the strictness level at which this file becomes required.
#
# Must set require_file_paths before calling this function.
# require_file_paths is set to hold a single directory (the one in
# which the first file was found) before return.
sub require_file_internal
{
my ($is_configure, $line, $mystrict, @files) = @_;
foreach my $file (@files)
{
my $fullfile;
my $errdir;
my $errfile;
my $save_dir;
# If we've already looked for it, we're done.
next if defined $require_file_found{$file};
$require_file_found{$file} = 1;
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 $fullfile && ! -f readlink ($fullfile))
{
$dangling_sym = 1;
last;
}
elsif (-f $fullfile)
{
$found_it = 1;
&maybe_push_required_file ($dir, $file, $fullfile);
$save_dir = $dir;
last;
}
}
if ($found_it && ! $force_missing)
{
# Prune the path list.
@require_file_paths = $save_dir;
}
else
{
if ($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;
# Maybe run libtoolize.
my @syslist = ('libtoolize', '--automake');
push @syslist, '--copy'
if $copy_missing;
if ($seen_libtool
&& grep ($_ eq $file, @libtoolize_files)
&& system (@syslist))
{
$message = "installing `$errfile'";
$suppress = 0;
$trailer = "; cannot run `libtoolize': $!";
}
elsif (-f ("$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;
$trailer = "\n error while copying";
}
}
&maybe_push_required_file (dirname ($errfile),
$file, $errfile);
# Prune the path list.
@require_file_paths = &dirname ($errfile);
}
if ($suppress)
{
if ($is_configure)
{
# FIXME: allow actual file to be specified.
&am_conf_line_warning ($configure_ac, $line,
"$message$trailer");
}
else
{
&am_line_warning ($line, "$message$trailer");
}
}
else
{
if ($is_configure)
{
# FIXME: allow actual file to be specified.
&am_conf_line_error ($configure_ac, $line,
"$message$trailer");
}
else
{
&am_line_error ($line, "$message$trailer");
}
}
}
}
}
}
# Like require_file_with_line, but error messages refer to
# configure.ac, not the current Makefile.am.
sub require_file_with_conf_line
{
@require_file_paths = $relative_dir;
&require_file_internal (1, @_);
}
sub require_file_with_line
{
@require_file_paths = $relative_dir;
&require_file_internal (0, @_);
}
sub require_file
{
@require_file_paths = $relative_dir;
&require_file_internal (0, '', @_);
}
# Require a file that is also required by Autoconf. Looks in
# configuration path, as specified by AC_CONFIG_AUX_DIR.
sub require_config_file
{
@require_file_paths = @config_aux_path;
&require_file_internal (1, '', @_);
my $dir = $require_file_paths[0];
@config_aux_path = @require_file_paths;
# Avoid unsightly '/.'s.
$config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
}
# Assumes that the line number is in Makefile.am.
sub require_conf_file_with_line
{
@require_file_paths = @config_aux_path;
&require_file_internal (0, @_);
my $dir = $require_file_paths[0];
@config_aux_path = @require_file_paths;
# Avoid unsightly '/.'s.
$config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
}
# Assumes that the line number is in configure.ac.
sub require_conf_file_with_conf_line
{
@require_file_paths = @config_aux_path;
&require_file_internal (1, @_);
my $dir = $require_file_paths[0];
@config_aux_path = @require_file_paths;
# avoid unsightly '/.'s.
$config_aux_dir = '$(top_srcdir)' . ($dir eq '.' ? "" : "/$dir");
}
################################################################
# 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, '+', '', join (' ', @_), '');
}
# 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 `$strictness_name' not recognized\n";
}
}
################################################################
# Ensure a file exists.
sub create
{
my ($file) = @_;
my $touch = new IO::File (">> $file");
$touch->close;
}
# Glob something. Do this to avoid indentation screwups everywhere we
# want to glob. Gross!
sub my_glob
{
my ($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, $_;
}
return join '', @result;
}
################################################################
# Print an error message and set exit status.
sub am_error
{
warn "$me: ${am_file}.am: @_\n";
$exit_status = 1;
}
# am_file_error ($FILE, @ARGS)
# ----------------------------
sub am_file_error
{
my ($file, @args) = @_;
warn "$file: @args\n";
$exit_status = 1;
}
sub am_line_error
{
my ($symbol, @args) = @_;
if ($symbol && "$symbol" ne '-1')
{
my $file = "${am_file}.am";
if ($symbol =~ /^\d+$/)
{
# SYMBOL is a line number, so just add the colon.
$file .= ':' . $symbol;
}
elsif (defined $var_line{$symbol})
{
# SYMBOL is a variable defined in Makefile.am, so add the
# line number we saved from there.
$file .= ':' . $var_line{$symbol};
}
elsif (defined $configure_vars{$symbol})
{
# SYMBOL is a variable defined in configure.ac, so add the
# appropriate line number.
$file = $configure_vars{$symbol};
}
else
{
# Couldn't find the line number.
}
warn $file, ": @args\n";
$exit_status = 1;
}
else
{
&am_error (@args);
}
}
# Like am_error, but while scanning configure.ac.
sub am_conf_error
{
# FIXME: can run in subdirs.
warn "$me: $configure_ac: @_\n";
$exit_status = 1;
}
# Error message with line number referring to configure.ac.
sub am_conf_line_error
{
my ($file, $line, @args) = @_;
if ($line)
{
warn "$file: $line: @args\n";
$exit_status = 1;
}
else
{
&am_conf_error (@args);
}
}
# Warning message with line number referring to configure.ac.
# Does not affect exit_status
sub am_conf_line_warning
{
my $saved_exit_status = $exit_status;
my $sig = $SIG{'__WARN__'};
$SIG{'__WARN__'} = 'DEFAULT';
am_conf_line_error (@_);
$exit_status = $saved_exit_status;
$SIG{'__WARN__'} = $sig;
}
# Like am_line_error, but doesn't affect exit status.
sub am_line_warning
{
my $saved_exit_status = $exit_status;
my $sig = $SIG{'__WARN__'};
$SIG{'__WARN__'} = 'DEFAULT';
am_line_error (@_);
$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: $0 [OPTION] ... [Makefile]...
Generate Makefile.in for configure from Makefile.am.
Operation modes:
--help print this help, then exit
--version print version number, then exit
-v, --verbose verbosely list files processed
-o, --output-dir=DIR put generated Makefile.in's into DIR
--no-force only update Makefile.in's that are out of date
Dependency tracking:
-i, --ignore-deps disable dependency tracking code
--include-deps enable dependency tracking code
Flavors:
--cygnus assume program is part of Cygnus-style tree
--foreign set strictness to foreign
--gnits set strictness to gnits
--gnu set strictness to gnu
Library files:
-a, --add-missing add missing standard files to package
--libdir=DIR directory storing library files
-c, --copy with -a, copy missing files (default is symlink)
-f, --force-missing force update of standard files
EOF
my ($last, @lcomm);
$last = '';
foreach my $iter (sort ((@common_files, @common_sometimes)))
{
push (@lcomm, $iter) unless $iter eq $last;
$last = $iter;
}
my ($one, $two, $three, $four, $max);
print "\nFiles which are automatically distributed, if found:\n";
format USAGE_FORMAT =
@<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
$one, $two, $three, $four
.
$~ = "USAGE_FORMAT";
$max = int (($#lcomm + 1) / 4);
for (my $i = 0; $i < $max; ++$i)
{
$one = $lcomm[$i];
$two = $lcomm[$max + $i];
$three = $lcomm[2 * $max + $i];
$four = $lcomm[3 * $max + $i];
write;
}
my $mod = ($#lcomm + 1) % 4;
if ($mod != 0)
{
$one = $lcomm[$max];
$two = ($mod > 1) ? $lcomm[2 * $max] : '';
$three = ($mod > 2) ? $lcomm[3 * $max] : '';
$four = ($mod > 3) ? $lcomm[4 * $max] : '';
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\@cygnus.com>.
Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
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;
}