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+/* Target definitions for Darwin (Mac OS X) systems.
+ Copyright (C) 2009, 2010, 2011 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/>. */
+
+#undef LIB_SPEC
+#define LIB_SPEC "%{!static: -lSystem }"
+
+/* Fix PR41260 by passing -no_compact_unwind on darwin10 and later until
+ unwinder in libSystem is fixed to digest new epilog unwinding notes.
+
+ Fix PR47558 by linking against libSystem ahead of libgcc_ext. */
+#undef LINK_GCC_C_SEQUENCE_SPEC
+#define LINK_GCC_C_SEQUENCE_SPEC \
+"%:version-compare(>= 10.6 mmacosx-version-min= -no_compact_unwind) \
+ %{!static:%{!static-libgcc: \
+ %:version-compare(>= 10.6 mmacosx-version-min= -lSystem) } } %G %L"