diff -Nuar gcc-4.9.0.orig/gcc/config/i386/linux64.h gcc-4.9.0/gcc/config/i386/linux64.h
--- gcc-4.9.0.orig/gcc/config/i386/linux64.h	2014-01-03 00:23:26.000000000 +0200
+++ gcc-4.9.0/gcc/config/i386/linux64.h	2014-05-15 13:21:11.968021447 +0300
@@ -28,5 +28,5 @@
 #define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"

 #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
-#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld-linux-x86-64.so.2"
 #define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
diff -Nuar gcc-4.9.0.orig/gcc/config/i386/t-linux64 gcc-4.9.0/gcc/config/i386/t-linux64
--- gcc-4.9.0.orig/gcc/config/i386/t-linux64	2014-01-03 00:23:26.000000000 +0200
+++ gcc-4.9.0/gcc/config/i386/t-linux64	2014-05-15 13:11:48.198012307 +0300
@@ -33,6 +33,6 @@
 comma=,
 MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
 MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+MULTILIB_OSDIRNAMES = m64=../lib$(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,:x86_64-linux-gnux32)