mirror of
git://git.sv.gnu.org/autoconf
synced 2025-02-11 13:51:04 +08:00
644 lines
18 KiB
Perl
644 lines
18 KiB
Perl
#! @PERL@ -w
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# -*- perl -*-
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# @configure_input@
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eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
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if 0;
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# autoreconf - install the GNU Build System in a directory tree
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# Copyright (C) 1994, 1999-2017 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Written by David J. MacKenzie.
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# Extended and rewritten in Perl by Akim Demaille.
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BEGIN
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{
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my $pkgdatadir = $ENV{'autom4te_perllibdir'} || '@pkgdatadir@';
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unshift @INC, $pkgdatadir;
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# Override SHELL. On DJGPP SHELL may not be set to a shell
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# that can handle redirection and quote arguments correctly,
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# e.g.: COMMAND.COM. For DJGPP always use the shell that configure
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# has detected.
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$ENV{'SHELL'} = '@SHELL@' if ($^O eq 'dos');
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}
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use Autom4te::ChannelDefs;
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use Autom4te::Channels;
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use Autom4te::Configure_ac;
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use Autom4te::FileUtils;
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use Autom4te::General;
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use Autom4te::XFile;
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# Do not use Cwd::chdir, since it might hang.
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use Cwd 'cwd';
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use strict;
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## ----------- ##
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## Variables. ##
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## ----------- ##
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# $HELP
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# -----
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$help = "Usage: $0 [OPTION]... [DIRECTORY]...
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Run 'autoconf' (and 'autoheader', 'aclocal', 'automake', 'autopoint'
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(formerly 'gettextize'), and 'libtoolize' where appropriate)
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repeatedly to remake the GNU Build System files in specified
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DIRECTORIES and their subdirectories (defaulting to '.').
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By default, it only remakes those files that are older than their
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sources. If you install new versions of the GNU Build System,
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you can make 'autoreconf' remake all of the files by giving it the
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'--force' option.
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Operation modes:
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-h, --help print this help, then exit
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-V, --version print version number, then exit
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-v, --verbose verbosely report processing
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-d, --debug don't remove temporary files
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-f, --force consider all generated and standard files obsolete
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-i, --install copy missing standard auxiliary files
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--no-recursive don't rebuild sub-packages
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-s, --symlink with -i, install symbolic links instead of copies
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-m, --make when applicable, re-run ./configure && make
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-W, --warnings=CATEGORY report the warnings falling in CATEGORY [syntax]
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" . Autom4te::ChannelDefs::usage . "
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The environment variable 'WARNINGS' is honored. Some subtools might
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support other warning types, using 'all' is encouraged.
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Library directories:
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-B, --prepend-include=DIR prepend directory DIR to search path
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-I, --include=DIR append directory DIR to search path
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The environment variables AUTOM4TE, AUTOCONF, AUTOHEADER, AUTOMAKE,
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ACLOCAL, AUTOPOINT, LIBTOOLIZE, M4, and MAKE are honored.
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Report bugs to <bug-autoconf\@gnu.org>.
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GNU Autoconf home page: <http://www.gnu.org/software/autoconf/>.
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General help using GNU software: <http://www.gnu.org/gethelp/>.
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";
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# $VERSION
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# --------
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$version = "autoreconf (@PACKAGE_NAME@) @VERSION@
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Copyright (C) @RELEASE_YEAR@ Free Software Foundation, Inc.
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License GPLv3+/Autoconf: GNU GPL version 3 or later
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<http://gnu.org/licenses/gpl.html>, <http://gnu.org/licenses/exceptions.html>
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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Written by David J. MacKenzie and Akim Demaille.
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";
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# Lib files.
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my $autoconf = $ENV{'AUTOCONF'} || '@bindir@/@autoconf-name@';
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my $autoheader = $ENV{'AUTOHEADER'} || '@bindir@/@autoheader-name@';
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my $autom4te = $ENV{'AUTOM4TE'} || '@bindir@/@autom4te-name@';
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my $automake = $ENV{'AUTOMAKE'} || 'automake';
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my $aclocal = $ENV{'ACLOCAL'} || 'aclocal';
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my $libtoolize = $ENV{'LIBTOOLIZE'} || 'libtoolize';
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my $autopoint = $ENV{'AUTOPOINT'} || 'autopoint';
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my $make = $ENV{'MAKE'} || 'make';
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# --install -- as --add-missing in other tools.
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my $install = 0;
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# symlink -- when --install, use symlinks instead.
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my $symlink = 0;
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# Does aclocal support -Wfoo?
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my $aclocal_supports_warnings = 0;
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# Does automake support -Wfoo?
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my $automake_supports_warnings = 0;
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my @prepend_include;
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my @include;
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# List of command line warning requests.
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my @warning;
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# Rerun './configure && make'?
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my $run_make = 0;
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# Recurse into subpackages
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my $recursive = 1;
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## ---------- ##
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## Routines. ##
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## ---------- ##
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# parse_args ()
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# -------------
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# Process any command line arguments.
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sub parse_args ()
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{
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my $srcdir;
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getopt ("W|warnings=s" => \@warning,
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'I|include=s' => \@include,
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'B|prepend-include=s' => \@prepend_include,
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'i|install' => \$install,
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's|symlink' => \$symlink,
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'm|make' => \$run_make,
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'recursive!' => \$recursive);
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# Split the warnings as a list of elements instead of a list of
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# lists.
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@warning = map { split /,/ } @warning;
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parse_WARNINGS;
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parse_warnings '--warnings', @warning;
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# Even if the user specified a configure.ac, trim to get the
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# directory, and look for configure.ac again. Because (i) the code
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# is simpler, and (ii) we are still able to diagnose simultaneous
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# presence of configure.ac and configure.in.
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@ARGV = map { /configure\.(ac|in)$/ ? dirname ($_) : $_ } @ARGV;
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push @ARGV, '.' unless @ARGV;
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if ($verbose && $debug)
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{
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for my $prog ($autoconf, $autoheader,
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$automake, $aclocal,
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$autopoint,
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$libtoolize)
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{
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xsystem ("$prog --version | sed 1q >&2");
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print STDERR "\n";
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}
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}
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my $aclocal_help = `$aclocal --help 2>/dev/null`;
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my $automake_help = `$automake --help 2>/dev/null`;
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$aclocal_supports_warnings = $aclocal_help =~ /--warnings/;
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$automake_supports_warnings = $automake_help =~ /--warnings/;
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# Dispatch autoreconf's option to the tools.
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# --include;
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$aclocal .= join (' -I ', '', map { shell_quote ($_) } @include);
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$autoconf .= join (' --include=', '', map { shell_quote ($_) } @include);
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$autoconf .= join (' --prepend-include=', '', map { shell_quote ($_) } @prepend_include);
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$autoheader .= join (' --include=', '', map { shell_quote ($_) } @include);
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$autoheader .= join (' --prepend-include=', '', map { shell_quote ($_) } @prepend_include);
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# --install and --symlink;
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if ($install)
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{
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$automake .= ' --add-missing';
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$automake .= ' --copy' unless $symlink;
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$libtoolize .= ' --copy' unless $symlink;
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}
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# --force;
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if ($force)
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{
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$aclocal .= ' --force';
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$autoconf .= ' --force';
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$autoheader .= ' --force';
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$automake .= ' --force-missing';
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$autopoint .= ' --force';
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$libtoolize .= ' --force';
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}
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else
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{
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$automake .= ' --no-force';
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}
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# --verbose --verbose or --debug;
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if ($verbose > 1 || $debug)
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{
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$autoconf .= ' --verbose';
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$autoheader .= ' --verbose';
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$automake .= ' --verbose';
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$aclocal .= ' --verbose';
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}
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if ($debug)
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{
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$autoconf .= ' --debug';
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$autoheader .= ' --debug';
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$libtoolize .= ' --debug';
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}
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# --warnings;
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if (@warning)
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{
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my $warn = ' --warnings=' . join (',', @warning);
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$autoconf .= $warn;
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$autoheader .= $warn;
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$automake .= $warn
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if $automake_supports_warnings;
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$aclocal .= $warn
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if $aclocal_supports_warnings;
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}
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}
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# &autoreconf_current_directory
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# -----------------------------
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sub autoreconf_current_directory ()
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{
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my $configure_ac = find_configure_ac;
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# ---------------------- #
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# Is it using Autoconf? #
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# ---------------------- #
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my $uses_autoconf;
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my $uses_gettext;
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if (-f $configure_ac)
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{
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my $configure_ac_file = new Autom4te::XFile ("$configure_ac", "<");
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while ($_ = $configure_ac_file->getline)
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{
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s/#.*//;
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s/dnl.*//;
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$uses_autoconf = 1 if /AC_INIT/;
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# See below for why we look for gettext here.
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$uses_gettext = 1 if /^AM_GNU_GETTEXT_VERSION/;
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}
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}
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if (!$uses_autoconf)
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{
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verb "$configure_ac: not using Autoconf";
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return;
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}
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# ------------------- #
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# Running autopoint. #
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# ------------------- #
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# Gettext is a bit of a problem: its macros are not necessarily
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# visible to aclocal, so if we start with a completely striped down
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# package (think of a fresh CVS checkout), running 'aclocal' first
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# will fail: the Gettext macros are missing.
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#
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# Therefore, we can't use the traces to decide if we use Gettext or
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# not. I guess that once Gettext move to 2.5x we will be able to,
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# but in the meanwhile forget it.
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#
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# We can only grep for AM_GNU_GETTEXT_VERSION in configure.ac. You
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# might think this approach is naive, and indeed it is, as it
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# prevents one to embed AM_GNU_GETTEXT_VERSION in another *.m4, but
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# anyway we don't limit the generality, since... that's what
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# autopoint does. Actually, it is even more restrictive, as it
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# greps for '^AM_GNU_GETTEXT_VERSION('. We did this above, while
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# scanning configure.ac.
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if (!$uses_gettext)
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{
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verb "$configure_ac: not using Gettext";
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}
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elsif (!$install)
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{
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verb "$configure_ac: not running autopoint: --install not given";
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}
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else
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{
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xsystem_hint ("autopoint is needed because this package uses Gettext", "$autopoint");
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}
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# ----------------- #
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# Running aclocal. #
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# ----------------- #
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# Run it first: it might discover new macros to add, e.g.,
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# AC_PROG_LIBTOOL, which we will trace later to see if Libtool is
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# used.
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#
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# Always run it. Tracking its sources for up-to-dateness is too
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# complex and too error prone. The best we can do is avoiding
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# nuking the timestamp.
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my $uses_aclocal = 1;
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# Nevertheless, if aclocal.m4 exists and is not made by aclocal,
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# don't run aclocal.
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if (-f 'aclocal.m4')
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{
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my $aclocal_m4 = new Autom4te::XFile 'aclocal.m4';
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$_ = $aclocal_m4->getline;
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$uses_aclocal = 0
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unless defined ($_) && /generated.*by aclocal/;
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}
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# If there are flags for aclocal in Makefile.am, use them.
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my $aclocal_flags = '';
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if ($uses_aclocal && -f 'Makefile.am')
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{
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my $makefile = new Autom4te::XFile 'Makefile.am';
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while ($_ = $makefile->getline)
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{
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if (/^ACLOCAL_[A-Z_]*FLAGS\s*=\s*(.*)/)
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{
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$aclocal_flags = $1;
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last;
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}
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}
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}
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if (!$uses_aclocal)
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{
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verb "$configure_ac: not using aclocal";
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}
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else
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{
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# Some file systems have sub-second timestamps, and if so we may
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# run into trouble later, after we rerun autoconf and set the
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# timestamps of input files to be no greater than aclocal.m4,
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# because the time-stamp-setting operation (utime) has a
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# resolution of only 1 second. Work around the problem by
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# ensuring that there is at least a one-second window before the
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# timestamp of aclocal.m4t in which no file timestamps can
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# fall.
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sleep 1;
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xsystem ("$aclocal $aclocal_flags");
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}
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# We might have to rerun aclocal if Libtool (or others) imports new
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# macros.
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my $rerun_aclocal = 0;
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# ------------------------------- #
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# See what tools will be needed. #
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# ------------------------------- #
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# Perform a single trace reading to avoid --force forcing a rerun
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# between two --trace, that's useless. If there is no AC_INIT, then
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# we are not interested: it looks like a Cygnus thingy.
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my $aux_dir;
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my $uses_gettext_via_traces;
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my $uses_libtool;
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my $uses_libltdl;
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my $uses_autoheader;
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my $uses_automake;
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my @subdir;
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verb "$configure_ac: tracing";
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my $traces = new Autom4te::XFile
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("$autoconf"
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. join (' ',
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map { ' --trace=' . $_ . ':\$n::\${::}%' }
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# If you change this list, update the
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# 'Autoreconf-preselections' section of autom4te.in.
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'AC_CONFIG_AUX_DIR',
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'AC_CONFIG_HEADERS',
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'AC_CONFIG_SUBDIRS',
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'AC_INIT',
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'AC_PROG_LIBTOOL',
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'LT_INIT',
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'LT_CONFIG_LTDL_DIR',
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'AM_GNU_GETTEXT',
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'AM_INIT_AUTOMAKE',
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)
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. ' |');
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while ($_ = $traces->getline)
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{
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chomp;
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my ($macro, @args) = split (/::/);
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$aux_dir = $args[0] if $macro eq "AC_CONFIG_AUX_DIR";
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$uses_autoconf = 1 if $macro eq "AC_INIT";
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$uses_gettext_via_traces = 1 if $macro eq "AM_GNU_GETTEXT";
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$uses_libtool = 1 if $macro eq "AC_PROG_LIBTOOL"
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|| $macro eq "LT_INIT";
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$uses_libltdl = 1 if $macro eq "LT_CONFIG_LTDL_DIR";
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$uses_autoheader = 1 if $macro eq "AC_CONFIG_HEADERS";
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$uses_automake = 1 if $macro eq "AM_INIT_AUTOMAKE";
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push @subdir, split (' ', $args[0])
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if $macro eq "AC_CONFIG_SUBDIRS" && $recursive;
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}
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# The subdirs are *optional*, they may not exist.
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foreach (@subdir)
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{
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if (-d)
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{
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verb "$configure_ac: adding subdirectory $_ to autoreconf";
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autoreconf ($_);
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}
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else
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{
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verb "$configure_ac: subdirectory $_ not present";
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}
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}
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# Gettext consistency checks...
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error "$configure_ac: AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION"
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if $uses_gettext_via_traces && ! $uses_gettext;
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error "$configure_ac: AM_GNU_GETTEXT_VERSION is used, but not AM_GNU_GETTEXT"
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if $uses_gettext && ! $uses_gettext_via_traces;
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# ---------------------------- #
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# Setting up the source tree. #
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# ---------------------------- #
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# libtoolize, automake --add-missing etc. will drop files in the
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# $AUX_DIR. But these tools fail to install these files if the
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# directory itself does not exist, which valid: just imagine a CVS
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# repository with hand written code only (there is not even a need
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# for a Makefile.am!).
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if (defined $aux_dir && ! -d $aux_dir)
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{
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verb "$configure_ac: creating directory $aux_dir";
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mkdir $aux_dir, 0755
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or error "cannot create $aux_dir: $!";
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}
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# -------------------- #
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# Running libtoolize. #
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# -------------------- #
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if (!$uses_libtool)
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{
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verb "$configure_ac: not using Libtool";
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}
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elsif ($install)
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{
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if ($uses_libltdl)
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{
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$libtoolize .= " --ltdl";
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}
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xsystem_hint ("libtoolize is needed because this package uses Libtool", $libtoolize);
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$rerun_aclocal = 1;
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}
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else
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{
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verb "$configure_ac: not running libtoolize: --install not given";
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}
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# ------------------- #
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# Rerunning aclocal. #
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# ------------------- #
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# If we re-installed Libtool or Gettext, the macros might have changed.
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# Automake also needs an up-to-date aclocal.m4.
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if ($rerun_aclocal)
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{
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if (!$uses_aclocal)
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{
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verb "$configure_ac: not using aclocal";
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}
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else
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{
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xsystem ("$aclocal $aclocal_flags");
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}
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}
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# ------------------ #
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# Running autoconf. #
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# ------------------ #
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# Don't try to be smarter than 'autoconf', which does its own up to
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# date checks.
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#
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|
# We prefer running autoconf before autoheader, because (i) the
|
|
# latter runs the former, and (ii) autoconf is stricter than
|
|
# autoheader. So all in all, autoconf should give better error
|
|
# messages.
|
|
xsystem ($autoconf);
|
|
|
|
|
|
# -------------------- #
|
|
# Running autoheader. #
|
|
# -------------------- #
|
|
|
|
# We now consider that if AC_CONFIG_HEADERS is used, then autoheader
|
|
# is used too.
|
|
#
|
|
# Just as for autoconf, up to date ness is performed by the tool
|
|
# itself.
|
|
#
|
|
# Run it before automake, since the latter checks the presence of
|
|
# config.h.in when it sees an AC_CONFIG_HEADERS.
|
|
if (!$uses_autoheader)
|
|
{
|
|
verb "$configure_ac: not using Autoheader";
|
|
}
|
|
else
|
|
{
|
|
xsystem ($autoheader);
|
|
}
|
|
|
|
|
|
# ------------------ #
|
|
# Running automake. #
|
|
# ------------------ #
|
|
|
|
if (!$uses_automake)
|
|
{
|
|
verb "$configure_ac: not using Automake";
|
|
}
|
|
else
|
|
{
|
|
# We should always run automake, and let it decide whether it shall
|
|
# update the file or not. In fact, the effect of '$force' is already
|
|
# included in '$automake' via '--no-force'.
|
|
xsystem ($automake);
|
|
}
|
|
|
|
|
|
# -------------- #
|
|
# Running make. #
|
|
# -------------- #
|
|
|
|
if ($run_make)
|
|
{
|
|
if (!-f "config.status")
|
|
{
|
|
verb "no config.status: cannot re-make";
|
|
}
|
|
else
|
|
{
|
|
xsystem ("./config.status --recheck");
|
|
xsystem ("./config.status");
|
|
if (!-f "Makefile")
|
|
{
|
|
verb "no Makefile: cannot re-make";
|
|
}
|
|
else
|
|
{
|
|
xsystem ("$make");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
# &autoreconf ($DIRECTORY)
|
|
# ------------------------
|
|
# Reconf the $DIRECTORY.
|
|
sub autoreconf ($)
|
|
{
|
|
my ($directory) = @_;
|
|
my $cwd = cwd;
|
|
|
|
# The format for this message is not free: taken from Emacs, itself
|
|
# using GNU Make's format.
|
|
verb "Entering directory '$directory'";
|
|
chdir $directory
|
|
or error "cannot chdir to $directory: $!";
|
|
|
|
autoreconf_current_directory;
|
|
|
|
# The format is not free: taken from Emacs, itself using GNU Make's
|
|
# format.
|
|
verb "Leaving directory '$directory'";
|
|
chdir $cwd
|
|
or error "cannot chdir to $cwd: $!";
|
|
}
|
|
|
|
|
|
## ------ ##
|
|
## Main. ##
|
|
## ------ ##
|
|
|
|
# When debugging, it is convenient that all the related temporary
|
|
# files be at the same place.
|
|
mktmpdir ('ar');
|
|
$ENV{'TMPDIR'} = $tmp;
|
|
parse_args;
|
|
|
|
# Autoreconf all the given configure.ac. Unless '--no-recursive' is passed,
|
|
# AC_CONFIG_SUBDIRS will be traversed in &autoreconf_current_directory.
|
|
$ENV{'AUTOM4TE'} = $autom4te;
|
|
for my $directory (@ARGV)
|
|
{
|
|
require_configure_ac ($directory);
|
|
autoreconf ($directory);
|
|
}
|
|
|
|
### Setup "GNU" style for perl-mode and cperl-mode.
|
|
## Local Variables:
|
|
## perl-indent-level: 2
|
|
## perl-continued-statement-offset: 2
|
|
## perl-continued-brace-offset: 0
|
|
## perl-brace-offset: 0
|
|
## perl-brace-imaginary-offset: 0
|
|
## perl-label-offset: -2
|
|
## cperl-indent-level: 2
|
|
## cperl-brace-offset: 0
|
|
## cperl-continued-brace-offset: 0
|
|
## cperl-label-offset: -2
|
|
## cperl-extra-newline-before-brace: t
|
|
## cperl-merge-trailing-else: nil
|
|
## cperl-continued-statement-offset: 2
|
|
## End:
|