+# define LIB_ARCH_TUPLE "m68k-linux-gnu"
+#elif defined(__tilegx__)
+# define native_architecture() ARCHITECTURE_TILEGX
+# error "Missing LIB_ARCH_TUPLE for TILEGX"
+#elif defined(__cris__)
+# define native_architecture() ARCHITECTURE_CRIS
+# error "Missing LIB_ARCH_TUPLE for CRIS"