--- /dev/null
+Based on patch from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56030
+Blocking gug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54040 has been fixed
+
+--- gcc-4.9.2/gcc/ada/gcc-interface/Makefile.in~ 2014-12-27 17:19:06.000000000 +0000
++++ gcc-4.9.2/gcc/ada/gcc-interface/Makefile.in 2014-12-27 18:11:33.908691021 +0000
+@@ -355,6 +355,14 @@
+ else
+ ifeq ($(strip $(MULTISUBDIR)),/x32)
+ target_cpu:=x32
++ else
++ ifeq ($(strip $(MULTISUBDIR)),/64)
++ target_cpu:=x86_64
++ else
++ ifneq ($(findstring gnux32,$(target_os)),)
++ target_cpu:=x32
++ endif
++ endif
+ endif
+ endif
+ endif