--- ruby-1.8.5-p231/math.c	2007-02-13 00:01:19.000000000 +0100
+++ ruby-1.8.6-p420/math.c	2008-07-02 11:25:48.000000000 +0200
@@ -34,7 +34,7 @@
 	if (isnan(x)) {
 #if defined(EDOM)
 	    errno = EDOM;
-#elif define(ERANGE)
+#elif defined(ERANGE)
 	    errno = ERANGE;
 #endif
 	    continue;