For x86_64-linux-gnux32 I used 'x32-linux-gnu' as the multiarch name, which is wrong, should be 'x86_64-linux-gnux32' instead (see [1]). Pointed out by Daniel Schepler.
Committed as obvious. Matthias [1] http://bugs.debian.org/667037 * gcc/config/i386/t-linux64 (MULTILIB_OSDIRNAMES): Use x86_64-linux-gnux32 as multiarch name for x32. Index: gcc/config/i386/t-linux64 =================================================================== --- gcc/config/i386/t-linux64 (Revision 193778) +++ gcc/config/i386/t-linux64 (Arbeitskopie) @@ -36,4 +36,4 @@ 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+= mx32=../libx32$(call if_multiarch,:x32-linux-gnu) +MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
