--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/i386/t-rtems	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,26 @@
+# Copyright (C) 1999-2017 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, 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/>.
+#
+
+MULTILIB_OPTIONS = mtune=i486/mtune=pentium/mtune=pentiumpro msoft-float
+MULTILIB_DIRNAMES= m486 mpentium mpentiumpro soft-float
+MULTILIB_MATCHES = msoft-float=mno-80387
+MULTILIB_MATCHES += mtune?pentium=mtune?k6 mtune?pentiumpro=mtune?athlon
+MULTILIB_EXCEPTIONS = \
+mtune=pentium/*msoft-float* \
+mtune=pentiumpro/*msoft-float*