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diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
new file mode 100644
index 0000000..973b0d6
--- /dev/null
+++ b/toolchain/gcc/common.mk
@@ -0,0 +1,200 @@
+#
+# Copyright (C) 2002-2003 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2004 Manuel Novoa III <mjn3@uclibc.org>
+# Copyright (C) 2005-2006 Felix Fietkau <nbd@openwrt.org>
+# Copyright (C) 2006-2012 OpenWrt.org
+#
+# This program 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 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=gcc
+GCC_VERSION:=$(call qstrip,$(CONFIG_GCC_VERSION))
+PKG_VERSION:=$(firstword $(subst +, ,$(GCC_VERSION)))
+GCC_DIR:=$(PKG_NAME)-$(PKG_VERSION)
+
+ifdef CONFIG_GCC_VERSION_LLVM
+  PKG_SOURCE_VERSION:=c98c494b72ff875884c0c7286be67f16f9f6d7ab
+  PKG_REV:=83504
+  GCC_DIR:=llvm-gcc-4.2-r$(PKG_REV)
+  PKG_VERSION:=4.2.1
+  PKG_SOURCE:=$(GCC_DIR).tar.gz
+  PKG_SOURCE_PROTO:=git
+  PKG_SOURCE_URL:=git://repo.or.cz/llvm-gcc-4.2.git
+  PKG_SOURCE_SUBDIR:=$(GCC_DIR)
+  HOST_BUILD_DIR:=$(BUILD_DIR_TOOLCHAIN)/$(GCC_DIR)
+else
+ifeq ($(findstring linaro, $(CONFIG_GCC_VERSION)),linaro)
+    ifeq ($(CONFIG_GCC_VERSION),"4.5-linaro")
+      PKG_REV:=4.5-2012.03
+      PKG_VERSION:=4.5.4
+      PKG_VERSION_MAJOR:=4.5
+      PKG_MD5SUM:=0c25f93e15e362e352c933e4649a7fc6
+    endif
+    ifeq ($(CONFIG_GCC_VERSION),"4.6-linaro")
+      PKG_REV:=4.6-2012.12
+      PKG_VERSION:=4.6.4
+      PKG_VERSION_MAJOR:=4.6
+      PKG_MD5SUM:=6b6c6a4faa026edd1193cf6426309039
+    endif
+    ifeq ($(CONFIG_GCC_VERSION),"4.7-linaro")
+      PKG_REV:=4.7-2012.12
+      PKG_VERSION:=4.7.3
+      PKG_VERSION_MAJOR:=4.7
+      PKG_MD5SUM:=247b15687358bc7958eeb91ab22637d1
+    endif
+    PKG_SOURCE_URL:=http://launchpad.net/gcc-linaro/$(PKG_VERSION_MAJOR)/$(PKG_REV)/+download/
+    PKG_SOURCE:=$(PKG_NAME)-linaro-$(PKG_REV).tar.bz2
+    GCC_DIR:=gcc-linaro-$(PKG_REV)
+    HOST_BUILD_DIR:=$(BUILD_DIR_TOOLCHAIN)/$(GCC_DIR)
+else
+  PKG_SOURCE_URL:=@GNU/gcc/gcc-$(PKG_VERSION)
+  PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
+
+  ifeq ($(PKG_VERSION),4.4.7)
+    PKG_MD5SUM:=295709feb4441b04e87dea3f1bab4281
+  endif
+  ifeq ($(PKG_VERSION),4.6.3)
+    PKG_MD5SUM:=773092fe5194353b02bb0110052a972e
+  endif
+  ifeq ($(PKG_VERSION),4.7.2)
+    PKG_MD5SUM:=cc308a0891e778cfda7a151ab8a6e762
+  endif
+endif
+endif
+
+PATCH_DIR=../patches/$(GCC_VERSION)
+
+BUGURL=https://dev.openwrt.org/
+
+HOST_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/toolchain-build.mk
+
+HOST_SOURCE_DIR:=$(HOST_BUILD_DIR)
+ifeq ($(GCC_VARIANT),minimal)
+  GCC_BUILD_DIR:=$(HOST_BUILD_DIR)-$(GCC_VARIANT)
+else
+  HOST_BUILD_DIR:=$(HOST_BUILD_DIR)-$(GCC_VARIANT)
+  GCC_BUILD_DIR:=$(HOST_BUILD_DIR)
+endif
+
+HOST_STAMP_PREPARED:=$(HOST_BUILD_DIR)/.prepared
+HOST_STAMP_BUILT:=$(GCC_BUILD_DIR)/.built
+HOST_STAMP_CONFIGURED:=$(GCC_BUILD_DIR)/.configured
+HOST_STAMP_INSTALLED:=$(STAGING_DIR_HOST)/stamp/.gcc_$(GCC_VARIANT)_installed
+
+SEP:=,
+TARGET_LANGUAGES:="c$(if $(CONFIG_INSTALL_LIBSTDCPP),$(SEP)c++)$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)$(if $(CONFIG_INSTALL_GFORTRAN),$(SEP)fortran)"
+
+export libgcc_cv_fixed_point=no
+ifdef CONFIG_USE_UCLIBC
+  export glibcxx_cv_c99_math_tr1=no
+endif
+
+GCC_CONFIGURE:= \
+	SHELL="$(BASH)" \
+	$(HOST_SOURCE_DIR)/configure \
+		--prefix=$(TOOLCHAIN_DIR) \
+		--build=$(GNU_HOST_NAME) \
+		--host=$(GNU_HOST_NAME) \
+		--target=$(REAL_GNU_TARGET_NAME) \
+		--with-gnu-ld \
+		--enable-target-optspace \
+		--disable-libgomp \
+		--disable-libmudflap \
+		--disable-multilib \
+		--disable-nls \
+		$(GRAPHITE_CONFIGURE) \
+		--with-host-libstdcxx=-lstdc++ \
+		$(SOFT_FLOAT_CONFIG_OPTION) \
+		$(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
+		$(if $(CONFIG_mips64)$(CONFIG_mips64el),--with-arch=mips64 --with-abi=64) \
+		$(if $(CONFIG_GCC_VERSION_LLVM),--enable-llvm=$(BUILD_DIR_BASE)/host/llvm) \
+		$(if $(CONFIG_sparc),--with-long-double-128) \
+
+ifeq ($(CONFIG_GCC_LLVM),)
+  GCC_BUILD_TARGET_LIBGCC:=y
+  GCC_CONFIGURE+= \
+		--with-gmp=$(TOPDIR)/staging_dir/host \
+		--with-mpfr=$(TOPDIR)/staging_dir/host \
+		--disable-decimal-float
+  ifneq ($(CONFIG_mips)$(CONFIG_mipsel),)
+    GCC_CONFIGURE += --with-mips-plt
+  endif
+endif
+
+ifneq ($(CONFIG_GCC_VERSION_4_5)$(CONFIG_GCC_VERSION_4_6),)
+  GCC_CONFIGURE+= \
+		--with-mpc=$(TOPDIR)/staging_dir/host
+endif
+
+ifneq ($(CONFIG_SSP_SUPPORT),)
+  GCC_CONFIGURE+= \
+		--enable-libssp
+else
+  GCC_CONFIGURE+= \
+		--disable-libssp
+endif
+
+ifneq ($(CONFIG_EXTRA_TARGET_ARCH),)
+  GCC_CONFIGURE+= \
+		--enable-biarch \
+		--enable-targets=$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_NAME))-linux-$(TARGET_SUFFIX)
+endif
+
+ifdef CONFIG_sparc
+  GCC_CONFIGURE+= --enable-targets=all
+endif
+
+ifeq ($(LIBC),uClibc)
+  GCC_CONFIGURE+= \
+		--disable-__cxa_atexit
+else
+  GCC_CONFIGURE+= \
+		--enable-__cxa_atexit
+endif
+
+ifneq ($(GCC_ARCH),)
+  GCC_CONFIGURE+= --with-arch=$(GCC_ARCH)
+endif
+
+GCC_MAKE:= \
+	export SHELL="$(BASH)"; \
+	$(MAKE) \
+		CFLAGS="$(HOST_CFLAGS)" \
+		CFLAGS_FOR_TARGET="$(TARGET_CFLAGS)" \
+		CXXFLAGS_FOR_TARGET="$(TARGET_CFLAGS)"
+
+define Host/Prepare
+	mkdir -p $(GCC_BUILD_DIR)
+endef
+
+define Host/Configure
+	(cd $(GCC_BUILD_DIR) && rm -f config.cache; \
+		$(GCC_CONFIGURE) \
+	);
+endef
+
+define Host/Clean
+	rm -rf \
+		$(STAGING_DIR_HOST)/stamp/.gcc_* \
+		$(STAGING_DIR_HOST)/stamp/.binutils_* \
+		$(GCC_BUILD_DIR) \
+		$(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME) \
+		$(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME) \
+		$(TOOLCHAIN_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc* \
+		$(TOOLCHAIN_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*
+endef