@@ -198,13 +198,14 @@
 	AC_SUBST(OFPLUGINS_DEF, "-DOF_PLUGINS")
 ])
 
 case "$host_os" in
 	darwin*)
-		AC_SUBST(REEXPORT_LIBOBJC, [-Wl,-reexport-lobjc])
-		AC_SUBST(LDFLAGS_REEXPORT, [-Wl,-reexport-lobjfw])
-		AC_SUBST(MACH_ALIAS_LIST, [-Wl,-alias_list,mach_alias_list])
+		AC_SUBST(REEXPORT_LIBOBJC, ["-Wl,-reexport-lobjc"])
+		AC_SUBST(LDFLAGS_REEXPORT, ["-Wl,-reexport-lobjfw"])
+		AC_SUBST(MACH_ALIAS_LIST,
+			 ["-Xarch_x86_64 -Wl,-alias_list,mach_alias_list"])
 		;;
 esac
 
 AC_C_BIGENDIAN([
 	AC_DEFINE(OF_BIG_ENDIAN, 1, [Whether we are big endian])