@@ -252,10 +252,12 @@
 				#endif
 			], [
 				AC_SUBST(LOOKUP_S, lookup-x86-elf.S)
 				AC_DEFINE(OF_ASM_LOOKUP, 1,
 					[Whether to use assembly for lookup])
+				AC_DEFINE(OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR, 1,
+					[Whether we have forwardingTargetForSelector:])
 			])
 		])
 
 		AC_EGREP_CPP(yes, [
 			#if defined(__amd64__) || defined(__x86_64__)