mirror of
https://github.com/rn10950/RetroZilla.git
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207 lines
6.0 KiB
Perl
207 lines
6.0 KiB
Perl
#! /usr/bin/env perl
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#
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# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is mozilla.org code.
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#
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# The Initial Developer of the Original Code is
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# Netscape Communications Corporation.
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# Portions created by the Initial Developer are Copyright (C) 1999
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either of the GNU General Public License Version 2 or later (the "GPL"),
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# or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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# acoutput-fast.pl - Quickly create makefiles that are in a common format.
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#
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# Most of the makefiles in mozilla only refer to two configure variables:
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# @srcdir@
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# @top_srcdir@
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# However, configure does not know any better and it runs sed on each file
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# with over 150 replacement rules (slow as molasses).
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#
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# This script takes a list of makefiles as input. For example,
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#
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# echo $MAKEFILES | acoutput-fast.pl
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#
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# The script creates each Makefile that only references @srcdir@ and
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# @top_srcdir@. For other files, it lists them in a shell command that is
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# printed to stdout:
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#
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# CONFIG_FILES="unhandled_files..."; export CONFIG_FILES
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#
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# This command can be used to have config.status create the unhandled
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# files. For example,
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#
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# eval "echo $MAKEFILES | acoutput-fast.pl"
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# AC_OUTPUT($MAKEFILES)
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#
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# Send comments, improvements, bugs to Steve Lamm (slamm@netscape.com).
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#use File::Basename;
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sub dirname {
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my $dir = $_[0];
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return '.' if not $dir =~ m%/%;
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$dir =~ s%/[^/][^/]*$%%;
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return $dir;
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}
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# Create one directory. Assumes it doesn't already exist.
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# Will create parent(s) if needed.
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sub create_directory {
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my $dir = $_[0];
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my $parent = dirname($dir);
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create_directory($parent) if not -d $parent;
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mkdir "$dir",0777;
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}
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# Create all the directories at once.
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# This can be much faster than calling mkdir() for each one.
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sub create_directories {
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my @makefiles = @_;
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my @dirs = ();
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my $ac_file;
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foreach $ac_file (@makefiles) {
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push @dirs, dirname($ac_file);
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}
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# Call mkdir with the directories sorted by subdir count (how many /'s)
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if (@dirs) {
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my $mkdir_command = "mkdir -p ". join(' ', @dirs);
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if (system($mkdir_command) != 0) {
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print STDERR "Creating dirs all at once failed; trying one at atime\n";
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foreach $dir (@dirs) {
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if (not -d $dir) {
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print STDERR "Creating directory $dir\n";
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create_directory($dir);
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}
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}
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}
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}
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}
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while($arg = shift) {
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if ($arg =~ /^--srcdir=/) {
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$ac_given_srcdir = (split /=/, $arg)[1];
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}
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if ($arg =~ /^--cygwin-srcdir/) {
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$ac_cygwin_srcdir = (split /=/, $arg)[1];
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}
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}
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if (!$ac_given_srcdir) {
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$ac_given_srcdir = $0;
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$ac_given_srcdir =~ s|/?build/autoconf/.*$||;
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$ac_given_srcdir = '.' if $ac_given_srcdir eq '';
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}
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if (!$ac_cygwin_srcdir) {
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$ac_cygwin_srcdir = $ac_given_srcdir;
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}
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# Read list of makefiles from the stdin or,
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# from files listed on the command-line.
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#
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@makefiles=();
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push @makefiles, split while (<STDIN>);
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# Create all the directories at once.
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# This can be much faster than calling mkdir() for each one.
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create_directories(@makefiles);
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# Output the makefiles.
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#
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@unhandled=();
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foreach $ac_file (@makefiles) {
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if (not $ac_file =~ /Makefile$/ or $ac_file =~ /:/) {
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push @unhandled, $ac_file;
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next;
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}
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$ac_file_in = "$ac_given_srcdir/$ac_file.in";
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$ac_dir = dirname($ac_file);
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if ($ac_dir eq '.') {
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$ac_dir_suffix = '';
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$ac_dots = '';
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} else {
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$ac_dir_suffix = "/$ac_dir";
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$ac_dir_suffix =~ s%^/\./%/%;
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$ac_dots = $ac_dir_suffix;
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$ac_dots =~ s%/[^/]*%../%g;
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}
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if ($ac_given_srcdir eq '.') {
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$srcdir = '.';
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if ($ac_dots eq '') {
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$top_srcdir = '.'
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} else {
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$top_srcdir = $ac_dots;
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$top_srcdir =~ s%/$%%;
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}
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} elsif ($ac_cygwin_srcdir =~ m%^/% or $ac_cygwin_srcdir =~ m%^.:/%) {
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$srcdir = "$ac_cygwin_srcdir$ac_dir_suffix";
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$top_srcdir = "$ac_cygwin_srcdir";
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} else {
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$srcdir = "$ac_dots$ac_cygwin_srcdir$ac_dir_suffix";
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$top_srcdir = "$ac_dots$ac_cygwin_srcdir";
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}
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if (-e $ac_file) {
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next if -M _ < -M $ac_file_in;
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print STDERR "updating $ac_file\n";
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} else {
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print STDERR "creating $ac_file\n";
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}
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open (INFILE, "<$ac_file_in")
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or ( warn "can't read $ac_file_in: No such file or directory\n" and next);
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open (OUTFILE, ">$ac_file")
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or ( warn "Unable to create $ac_file\n" and next);
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while (<INFILE>) {
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#if (/\@[_a-zA-Z]*\@.*\@[_a-zA-Z]*\@/) {
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# warn "Two defines on a line:$ac_file:$.:$_";
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# push @unhandled, $ac_file;
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# last;
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#}
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s/\@srcdir\@/$srcdir/g;
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s/\@top_srcdir\@/$top_srcdir/g;
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if (/\@[_a-zA-Z]*\@/) {
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warn "Unknown variable:$ac_file:$.:$_";
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push @unhandled, $ac_file;
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last;
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}
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print OUTFILE;
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}
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close INFILE;
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close OUTFILE;
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}
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# Print the shell command to be evaluated by configure.
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#
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print "CONFIG_FILES=\"".join(' ', @unhandled)."\"; export CONFIG_FILES\n";
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