# 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
@@ -25,7 +25,12 @@
 
 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
@@ -28,8 +28,13 @@
 MULTILIB_OPTIONS    := m64/m32
 MULTILIB_DIRNAMES   := 64 32
 MULTILIB_EXTRA_OPTS := 
+ifneq (,$(findstring powerpc64,$(target)))
+MULTILIB_OSDIRNAMES := m64=../lib$(call if_multiarch,:powerpc64-linux-gnu)
+MULTILIB_OSDIRNAMES += m32=../lib32$(call if_multiarch,:powerpc-linux-gnu)
+else
 MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
+MULTILIB_OSDIRNAMES += m32=../lib$(call if_multiarch,:powerpc-linux-gnu)
+endif
 
 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
@@ -33,9 +33,19 @@
 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)))
Index: b/src/gcc/config/mips/t-linux64
===================================================================
--- a/src/gcc/config/mips/t-linux64
+++ b/src/gcc/config/mips/t-linux64
@@ -23,10 +23,23 @@ MIPS_32 = $(if $(findstring r6, $(firstw
 MIPS_ISA = $(if $(findstring r6, $(firstword $(subst -, ,$(target)))),isa)
 MIPS_EL = $(if $(filter %el, $(firstword $(subst -, ,$(target)))),el)
 MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, $(target_cpu_default)) $(filter soft, $(with_float))),soft)
+
+ifneq (,$(findstring gnuabi64,$(target)))
+MULTILIB_OSDIRNAMES = \
+        ../lib32$(call if_multiarch,:mips$(MIPS_ISA)64$(MIPS_R6)$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
+        ../libo32$(call if_multiarch,:mips$(MIPS_ISA)$(MIPS_32)$(MIPS_R6)$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
+        ../lib$(call if_multiarch,:mips$(MIPS_ISA)64$(MIPS_R6)$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
+else ifneq (,$(findstring gnuabin32,$(target)))
+MULTILIB_OSDIRNAMES = \
+        ../lib$(call if_multiarch,:mips$(MIPS_ISA)64$(MIPS_R6)$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
+        ../libo32$(call if_multiarch,:mips$(MIPS_ISA)$(MIPS_32)$(MIPS_R6)$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
+        ../lib64$(call if_multiarch,:mips$(MIPS_ISA)64$(MIPS_R6)$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
+else
 MULTILIB_OSDIRNAMES = \
-	../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
-	../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
-	../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
+        ../lib32$(call if_multiarch,:mips$(MIPS_ISA)64$(MIPS_R6)$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
+        ../lib$(call if_multiarch,:mips$(MIPS_ISA)$(MIPS_32)$(MIPS_R6)$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
+        ../lib64$(call if_multiarch,:mips$(MIPS_ISA)64$(MIPS_R6)$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
+endif
 
 ifneq (,$(findstring abin32,$(target)))
 MULTIARCH_DIRNAME = $(call if_multiarch,mips$(MIPS_ISA)64$(MIPS_R6)$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT))
Index: b/src/gcc/config/rs6000/t-linux
===================================================================
--- a/src/gcc/config/rs6000/t-linux
+++ b/src/gcc/config/rs6000/t-linux
@@ -2,7 +2,7 @@
 # or soft-float.
 ifeq (,$(filter $(with_cpu),$(SOFT_FLOAT_CPUS))$(findstring soft,$(with_float)))
 ifneq (,$(findstring powerpc64,$(target)))
-MULTILIB_OSDIRNAMES := .=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+MULTILIB_OSDIRNAMES := .=../lib$(call if_multiarch,:powerpc64-linux-gnu)
 else
 ifneq (,$(findstring spe,$(target)))
 MULTIARCH_DIRNAME := powerpc-linux-gnuspe$(if $(findstring 8548,$(with_cpu)),,v1)