--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/gnu.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,46 @@
+/* Configuration common to all targets running the GNU system.  */
+
+/*
+Copyright (C) 1994, 1995, 1997, 1998, 1999, 2002, 2003, 2004, 2007, 2008 Free
+Software Foundation, Inc.
+
+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 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* Provide GCC options for standard feature-test macros.  */
+#undef CPP_SPEC
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{bsd:-D_BSD_SOURCE}"
+
+/* Default C library spec.  Use -lbsd-compat for gcc -bsd.  */
+#undef LIB_SPEC
+#define LIB_SPEC "%{pthread:-lpthread} %{bsd:-lbsd-compat} %{pg|p|profile:-lc_p;:-lc}"
+
+/* Standard include directory.  In GNU, "/usr" is a four-letter word.  */
+#undef STANDARD_INCLUDE_DIR
+#define STANDARD_INCLUDE_DIR "/include"
+
+#undef LINUX_TARGET_OS_CPP_BUILTINS
+#define LINUX_TARGET_OS_CPP_BUILTINS()		\
+    do {					\
+	builtin_define ("__gnu_hurd__");	\
+	builtin_define ("__GNU__");		\
+	builtin_define_std ("unix");		\
+	builtin_define_std ("MACH");		\
+	builtin_assert ("system=gnu");		\
+	builtin_assert ("system=mach");		\
+	builtin_assert ("system=unix");		\
+	builtin_assert ("system=posix");	\
+    } while (0)