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diff --git a/build/gen_parrot.pl b/build/gen_parrot.pl
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-#! perl
-# Copyright (C) 2009 The Perl Foundation
-
-=head1 TITLE
-
-gen_parrot.pl - script to obtain and build Parrot for Rakudo
-
-=head2 SYNOPSIS
-
- perl gen_parrot.pl [--parrot --configure=options]
-
-=head2 DESCRIPTION
-
-Maintains an appropriate copy of Parrot in the parrot/ subdirectory.
-The revision of Parrot to be used in the build is given by the
-build/PARROT_REVISION file.
-
-=cut
-
-use strict;
-use warnings;
-use 5.008;
-
-# Work out slash character to use.
-my $slash = $^O eq 'MSWin32' ? '\\' : '/';
-
-## determine what revision of Parrot we require
-open my $REQ, "build/PARROT_REVISION"
- || die "cannot open build/PARROT_REVISION\n";
-my ($reqsvn, $reqpar) = split(' ', <$REQ>);
-$reqsvn += 0;
-close $REQ;
-
-{
- no warnings;
- if (open my $REV, '-|', "parrot_install${slash}bin${slash}parrot_config revision") {
- my $revision = 0+<$REV>;
- close $REV;
- if ($revision >= $reqsvn) { print "Parrot r$revision already available (r$reqsvn required)\n";
- exit(0);
- }
- }
-}
-
-chdir('parrot-2.6.0') || die "Can't chdir to 'parrot-2.6.0': $!";
-
-
-## If we have a Makefile from a previous build, do a 'make realclean'
-if (-f 'Makefile') {
- my %config = read_parrot_config();
- my $make = $config{'make'};
- if ($make) {
- print "\nPerforming '$make realclean' ...\n";
- system_or_die($make, "realclean");
- }
-}
-
-print "\nConfiguring Parrot ...\n";
-my @config_command = ($^X, 'Configure.pl', @ARGV);
-print "@config_command\n";
-system_or_die( @config_command );
-
-print "\nBuilding Parrot ...\n";
-my %config = read_parrot_config();
-my $make = $config{'make'} or exit(1);
-system_or_die($make, 'install-dev');
-
-sub read_parrot_config {
- my %config = ();
- if (open my $CFG, "config_lib.pir") {
- while (<$CFG>) {
- if (/P0\["(.*?)"], "(.*?)"/) { $config{$1} = $2 }
- }
- close $CFG;
- }
- %config;
-}
-
-sub system_or_die {
- my @cmd = @_;
-
- system( @cmd ) == 0
- or die "Command failed (status $?): @cmd\n";
-}