--- ./gcc/config/i386/t-linux64.orig 2013-01-14 16:32:37.000000000 +0000 +++ ./gcc/config/i386/t-linux64 2013-04-22 06:12:32.984439677 +0000 @@ -34,6 +34,6 @@ comma=, MULTILIB_OPTIONS = $(subst $(comma),/,$(TM_MULTILIB_CONFIG)) MULTILIB_DIRNAMES = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS))) -MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu) -MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu) +MULTILIB_OSDIRNAMES = m64=../lib +MULTILIB_OSDIRNAMES+= m32=../lib32 MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)