diff -uNr root_v5.22.00a-macosx10.5-i386.ORIG/build/rmkdepend/imakemdep.h root_v5.22.00a-macosx10.5-i386/build/rmkdepend/imakemdep.h
--- root_v5.22.00a-macosx10.5-i386.ORIG/build/rmkdepend/imakemdep.h	2009-02-13 03:03:58.000000000 +0900
+++ root_v5.22.00a-macosx10.5-i386/build/rmkdepend/imakemdep.h	2009-03-20 13:57:45.000000000 +0900
@@ -915,6 +915,9 @@
 #ifdef __ppc__
 	{"__ppc__", "1"},
 #endif
+#ifdef __i386__
+	{"__i386__", "1"},
+#endif
 	/* add any additional symbols before this line */
 	{NULL, NULL}
 };