gcc: prevent the libgcc configure script from enabling support for the fixed point math extension, as it can bloat up libgcc size to 1.4M on mips

SVN-Revision: 18066

toolchain/gcc/Makefile

@@ -69,6 +69,8 @@ HOST_BUILD_DIR2:=$(HOST_BUILD_DIR)-final
 SEP:=,
 TARGET_LANGUAGES:="c$(if $(CONFIG_INSTALL_LIBSTDCPP),$(SEP)c++)$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)"
 
+export libgcc_cv_fixed_point=no
+
 GCC_CONFIGURE:= \
 	SHELL="$(BASH)" \
 	$(HOST_BUILD_DIR)/configure \