--- /dev/null
+# Target Makefile Fragment for Altera Nios II.
+# Copyright (C) 2012 Free Software Foundation, Inc.
+# Contributed by Altera and Mentor Graphics, 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
+## For some targets, invoking GCC in different ways produces objects that
+## can not be linked together. For example, for some targets GCC produces
+## both big and little endian code. For these targets, you must arrange
+## for multiple versions of libgcc.a to be compiled, one for each set of
+## incompatible options. When GCC invokes the linker, it arranges to link
+## in the right version of libgcc.a, based on the command line options
+## used.
+## The MULTILIB_OPTIONS macro lists the set of options for which special
+## versions of libgcc.a must be built. Write options that are mutually
+## incompatible side by side, separated by a slash. Write options that may
+## be used together separated by a space. The build procedure will build
+## all combinations of compatible options.
+##
+## For example, if you set MULTILIB_OPTIONS to m68000/m68020 msoft-float,
+## Makefile will build special versions of libgcc.a using the following
+## sets of options: -m68000, -m68020, -msoft-float, -m68000 -msoft-float,
+## and -m68020 -msoft-float.
+
+
+## The BUILD_BE_MULTILIB and BUILD_PG_MULTILIB variables allow the
+## makefile user to enable/disable the generation of the precompiled
+## big endian and profiling libraries. By default, the big endian
+## libraries are not created on a windows build and the profiling
+## libraries are not created on a Solaris build. All other library
+## combinations are created by default.
+
+# Uncomment to temporarily avoid building big endian and profiling libraries during a Windows build.
+#ifeq ($(DEV_HOST_OS), win32)
+#BUILD_BE_MULTILIB ?= 0
+#BUILD_PG_MULTILIB ?= 0
+#endif
+
+#By default, avoid building the profiling libraries during a Solaris build.
+ifeq ($(DEV_HOST_OS), solaris)
+BUILD_PG_MULTILIB ?= 0
+endif
+
+BUILD_BE_MULTILIB ?= 0
+BUILD_PG_MULTILIB ?= 1
+BUILD_MULTILIB ?= 0
+
+ifeq ($(BUILD_MULTILIB), 1)
+
+MULTILIB_OPTIONS = mno-hw-mul mhw-mulx mstack-check mcustom-fpu-cfg=60-1 mcustom-fpu-cfg=60-2
+
+#Add the profiling flag to the multilib variable if required
+ifeq ($(BUILD_PG_MULTILIB), 1)
+MULTILIB_OPTIONS += pg
+endif
+
+#Add the big endian flag to the multilib variable if required
+ifeq ($(BUILD_BE_MULTILIB), 1)
+MULTILIB_OPTIONS += EB/EL
+endif
+
+endif
+
+## MULTILIB_DIRNAMES
+## If MULTILIB_OPTIONS is used, this variable specifies the directory names
+## that should be used to hold the various libraries. Write one element in
+## MULTILIB_DIRNAMES for each element in MULTILIB_OPTIONS. If
+## MULTILIB_DIRNAMES is not used, the default value will be
+## MULTILIB_OPTIONS, with all slashes treated as spaces.
+## For example, if MULTILIB_OPTIONS is set to m68000/m68020 msoft-float,
+## then the default value of MULTILIB_DIRNAMES is m68000 m68020
+## msoft-float. You may specify a different value if you desire a
+## different set of directory names.
+
+# MULTILIB_DIRNAMES =
+
+## MULTILIB_MATCHES
+## Sometimes the same option may be written in two different ways. If an
+## option is listed in MULTILIB_OPTIONS, GCC needs to know about any
+## synonyms. In that case, set MULTILIB_MATCHES to a list of items of the
+## form option=option to describe all relevant synonyms. For example,
+## m68000=mc68000 m68020=mc68020.
+
+ifeq ($(BUILD_MULTILIB), 1)
+ifeq ($(BUILD_BE_MULTILIB), 1)
+MULTILIB_MATCHES = EL=mel EB=meb
+endif
+endif
+
+##
+## MULTILIB_EXCEPTIONS
+## Sometimes when there are multiple sets of MULTILIB_OPTIONS being
+## specified, there are combinations that should not be built. In that
+## case, set MULTILIB_EXCEPTIONS to be all of the switch exceptions in
+## shell case syntax that should not be built.
+## For example, in the PowerPC embedded ABI support, it is not desirable to
+## build libraries compiled with the -mcall-aix option and either of the
+## -fleading-underscore or -mlittle options at the same time. Therefore
+## MULTILIB_EXCEPTIONS is set to
+##
+## *mcall-aix/*fleading-underscore* *mlittle/*mcall-aix*
+##
+
+ifeq ($(BUILD_MULTILIB), 1)
+MULTILIB_EXCEPTIONS = *mno-hw-mul/*mhw-mulx* *mcustom-fpu-cfg=60-1/*mcustom-fpu-cfg=60-2*
+endif
+
+##
+## MULTILIB_EXTRA_OPTS Sometimes it is desirable that when building
+## multiple versions of libgcc.a certain options should always be passed on
+## to the compiler. In that case, set MULTILIB_EXTRA_OPTS to be the list
+## of options to be used for all builds.
+##
+
+
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