# DP: Don't auto-detect multilib osdirnames.

Index: b/src/gcc/config/sparc/t-linux64
===================================================================
--- a/src/gcc/config/sparc/t-linux64
+++ b/src/gcc/config/sparc/t-linux64
@@ -26,7 +26,12 @@
 
 MULTILIB_OPTIONS = m64/m32
 MULTILIB_DIRNAMES = 64 32
+ifneq (,$(findstring sparc64,$(target)))
+MULTILIB_OSDIRNAMES = ../lib$(call if_multiarch,:sparc64-linux-gnu)
+MULTILIB_OSDIRNAMES += ../lib32$(call if_multiarch,:sparc-linux-gnu)
+else
 MULTILIB_OSDIRNAMES = ../lib64$(call if_multiarch,:sparc64-linux-gnu)
-MULTILIB_OSDIRNAMES += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:sparc-linux-gnu)
+MULTILIB_OSDIRNAMES += ../lib$(call if_multiarch,:sparc-linux-gnu)
+endif
 
 MULTIARCH_DIRNAME = $(call if_multiarch,sparc$(if $(findstring 64,$(target)),64)-linux-gnu)
Index: b/src/gcc/config/s390/t-linux64
===================================================================
--- a/src/gcc/config/s390/t-linux64
+++ b/src/gcc/config/s390/t-linux64
@@ -7,7 +7,12 @@
 
 MULTILIB_OPTIONS = m64/m31
 MULTILIB_DIRNAMES = 64 32
+ifneq (,$(findstring s390x,$(target)))
+MULTILIB_OSDIRNAMES = ../lib$(call if_multiarch,:s390x-linux-gnu)
+MULTILIB_OSDIRNAMES += ../lib32$(call if_multiarch,:s390-linux-gnu)
+else
 MULTILIB_OSDIRNAMES = ../lib64$(call if_multiarch,:s390x-linux-gnu)
-MULTILIB_OSDIRNAMES += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:s390-linux-gnu)
+MULTILIB_OSDIRNAMES += ../lib$(call if_multiarch,:s390-linux-gnu)
+endif
 
 MULTIARCH_DIRNAME = $(call if_multiarch,s390$(if $(findstring s390x,$(target)),x)-linux-gnu)
Index: b/src/gcc/config/rs6000/t-linux64
===================================================================
--- a/src/gcc/config/rs6000/t-linux64
+++ b/src/gcc/config/rs6000/t-linux64
@@ -31,8 +31,13 @@
 MULTILIB_EXTRA_OPTS     = fPIC mstrict-align
 MULTILIB_EXCEPTIONS     =
 MULTILIB_EXCLUSIONS     =
+ifneq (,$(findstring powerpc64,$(target)))
+MULTILIB_OSDIRNAMES	= ../lib$(call if_multiarch,:powerpc64-linux-gnu)
+MULTILIB_OSDIRNAMES    += ../lib32$(call if_multiarch,:powerpc-linux-gnu)
+else
 MULTILIB_OSDIRNAMES	= ../lib64$(call if_multiarch,:powerpc64-linux-gnu)
-MULTILIB_OSDIRNAMES    += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
+MULTILIB_OSDIRNAMES    += ../lib$(call if_multiarch,:powerpc-linux-gnu)
+endif
 MULTILIB_MATCHES        =
 
 MULTIARCH_DIRNAME = $(call if_multiarch,powerpc$(if $(findstring 64,$(target)),64)-linux-gnu)
Index: b/src/gcc/config/i386/t-linux64
===================================================================
--- a/src/gcc/config/i386/t-linux64
+++ b/src/gcc/config/i386/t-linux64
@@ -34,9 +34,19 @@
 comma=,
 MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
 MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+ifneq (,$(findstring gnux32,$(target)))
 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+= m32=../lib32$(call if_multiarch,:i386-linux-gnu)
+MULTILIB_OSDIRNAMES+= mx32=../lib$(call if_multiarch,:x86_64-linux-gnux32)
+else ifneq (,$(findstring x86_64,$(target)))
+MULTILIB_OSDIRNAMES = m64=../lib$(call if_multiarch,:x86_64-linux-gnu)
+MULTILIB_OSDIRNAMES+= m32=../lib32$(call if_multiarch,:i386-linux-gnu)
 MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
+else
+MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+MULTILIB_OSDIRNAMES+= m32=../lib$(call if_multiarch,:i386-linux-gnu)
+MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
+endif
 
 ifneq (,$(findstring x86_64,$(target)))
   ifneq (,$(findstring biarchx32.h,$(tm_include_list)))