--- /dev/null
+; Processor-independent options for GNU/Linux.
+;
+; Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+; Contributed by CodeSourcery.
+;
+; 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/>.
+
+muclibc
+Target RejectNegative Report Mask(UCLIBC) Var(linux_uclibc) Init(UCLIBC_DEFAULT ? OPTION_MASK_UCLIBC : 0)
+Use uClibc instead of GNU libc
+
+mglibc
+Target RejectNegative Report InverseMask(UCLIBC, GLIBC) Var(linux_uclibc) VarExists
+Use GNU libc instead of uClibc