--- /dev/null
+++ Libc/Libc-1353.41.1/xcodescripts/patch_headers_variants.pl
@@ -0,0 +1,129 @@
+#!/usr/bin/perl
+#
+# Copyright (c) 2006, 2007 Apple Inc. All rights reserved.
+#
+# @APPLE_LICENSE_HEADER_START@
+# 
+# This file contains Original Code and/or Modifications of Original Code
+# as defined in and that are subject to the Apple Public Source License
+# Version 2.0 (the 'License'). You may not use this file except in
+# compliance with the License. Please obtain a copy of the License at
+# http://www.opensource.apple.com/apsl/ and read it before using this
+# file.
+# 
+# The Original Code and all software distributed under the License are
+# distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+# EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+# INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+# Please see the License for the specific language governing rights and
+# limitations under the License.
+# 
+# @APPLE_LICENSE_HEADER_END@
+#
+# patchheaders srcdir destdir
+#
+# The last path component of srcdir is replicated in destdir, with the
+# __DARWIN_ALIAS* and __DARWIN_EXTSN macro wrapped so that Libc can set
+# the symbol decoration independently:
+#
+#   #ifndef LIBC_ALIAS_FOO
+#   int foo(int) __DARWIN_ALIAS(foo);
+#   #else /* LIBC_ALIAS_FOO */
+#   int foo(int) LIBC_ALIAS(foo);
+#   #endif /* !LIBC_ALIAS_FOO */
+
+use strict;
+use IO::File;
+use File::Basename ();
+use File::Find ();
+use File::Path ();
+use File::Spec;
+
+my $MyName = File::Basename::basename($0);
+my $dest;
+
+sub process {
+    my($path, $file) = @_;
+    local $_;
+	if (-e $file) {
+		my $dest_mtime = (stat($file))[9];
+		my $src_mtime = (stat($path))[9];
+
+		if ($dest_mtime > $src_mtime) {
+			return;
+		}
+	}
+
+	my($fname, $dirs, $suffix) = File::Basename::fileparse($file, ".h");
+	if ($suffix ne ".h") {
+		return;
+	}
+
+    my $p = IO::File->new($path, 'r');
+    die "$MyName: Can't open $path: $!\n" unless defined($p);
+    my $f = IO::File->new($file, 'w');
+    die "$MyName: Can't open $file: $!\n" unless defined($f);
+    my @save;
+    while(<$p>) {
+		if(/^\S/ or /^\s*$/) {
+			my $n = scalar(@save);
+			my $sym;
+			if($n > 0) {
+				my($sym) = ($save[$n - 1] =~ /__DARWIN_(?:10\d+|ALIAS|EXTSN|INODE64)[^(]*\(([^)]*)\)/);
+				if($save[$n - 1] =~ /__DARWIN_ALIAS_STARTING/) {
+					undef $sym;
+				}
+				if(defined($sym)) {
+					if(defined($path)) {
+						print "  $path\n";
+						undef($path);
+					}
+					$sym =~ s/^\s+//;
+					$sym =~ s/\s+$//;
+					$sym =~ tr/a-z/A-Z/;
+					$f->print("#ifndef LIBC_ALIAS_$sym\n");
+				}
+				$f->print(@save);
+				if(defined($sym)) {
+					$save[$n - 1] =~ s/__DARWIN_(10\d+|ALIAS|EXTSN|INODE64)/LIBC_$1/;
+					$f->print("#else /* LIBC_ALIAS_$sym */\n");
+					$f->print(@save);
+					$f->print("#endif /* !LIBC_ALIAS_$sym */\n");
+				}
+			}
+			if(/^#/) {
+				$f->print($_);
+			@save = ();
+	    } else {
+			@save = ($_);
+	    }
+	} else {
+	    push(@save, $_);
+	}
+}
+$f->print(@save);
+}
+
+sub usage {
+    die "Usage: $MyName srcdir dstdir\n";
+}
+
+sub wanted {
+    if(-d $File::Find::name) {
+		#print "DIR: $File::Find::name\n";
+		my $dir = File::Spec->join($dest, $File::Find::name);
+		File::Path::mkpath($dir, 0, 0755);
+    } else {
+		#print "FIL: $File::Find::name\n";
+		my $file = File::Spec->join($dest, $File::Find::name);
+		process($File::Find::name, $file);
+    }
+}
+
+usage() unless scalar(@ARGV) == 2;
+my $start = File::Basename::dirname($ARGV[0]);
+chdir($start) || die "$MyName: chdir($start): $!\n";
+$dest = $ARGV[1];
+File::Path::mkpath($dest, 0, 0755);
+File::Find::find({wanted => \&wanted, no_chdir => 1}, File::Basename::basename($ARGV[0]));