--- gcc-4.4.3.ORIG/gcc/config.gcc	2009/09/22 01:33:53	151959
+++ gcc-4.4.3/gcc/config.gcc	2009/09/22 02:28:19	151960
@@ -400,9 +400,12 @@
 *-*-darwin*)
   tm_file="${tm_file} darwin.h"
   case ${target} in
-  *-*-darwin[912]*)
+  *-*-darwin9*)
     tm_file="${tm_file} darwin9.h"
     ;;
+  *-*-darwin[12][0-9]*)
+    tm_file="${tm_file} darwin9.h darwin10.h"
+    ;;
   esac
   tm_file="${tm_file} ${cpu_type}/darwin.h"
   tm_p_file="${tm_p_file} darwin-protos.h"
diff -uNr gcc-4.4.3.ORIG/gcc/config/darwin10.h gcc-4.4.3/gcc/config/darwin10.h
--- gcc-4.4.3.ORIG/gcc/config/darwin10.h	2010-03-16 01:15:49.000000000 +0900
+++ gcc-4.4.3/gcc/config/darwin10.h	2010-03-16 01:04:15.000000000 +0900
@@ -0,0 +1,25 @@
+/* Target definitions for Darwin (Mac OS X) systems.
+   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+   Contributed by Jack Howarth <howarth@bromo.med.uc.edu>.
+
+This file is part of GCC.
+
+GCC 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 3, or (at your option)
+any later version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+/* Fix PR41260 by passing -no_compact_unwind on darwin10 and later until
+unwinder in libSystem is fixed to digest new epilog unwinding notes. */
+
+#undef LIB_SPEC
+#define LIB_SPEC "%{!static:-no_compact_unwind -lSystem}"