--- configure.orig	2008-08-11 09:39:51.000000000 +0900
+++ configure	2008-11-06 01:50:55.000000000 +0900
@@ -10294,7 +10294,7 @@
 	 test ! -s conftest.err
        }; then
 
-		    test "x$target_cpu" = xppc && ac_cv_header_ucontext_h=no
+		    test "x$target_cpu" = xpowerpc && ac_cv_header_ucontext_h=no
 
 else
   echo "$as_me: failed program was:" >&5