--- m4sugar.m4.orig	Sat Mar  8 14:17:03 2008
+++ m4sugar.m4	Sat Mar  8 14:17:25 2008
@@ -1294,6 +1294,7 @@ m4_define([m4_expand_once],
 m4_define([m4_provide],
 [m4_define([m4_provide($1)])])
 
+m4_provide([AM_SANITY_CHECK])
 
 # m4_provide_ifelse(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
 # -----------------------------------------------------------
