--- lib/sh/snprintf.c	2008-08-12 12:02:14.000000000 -0400
+++ lib/sh/snprintf.c	2009-08-10 15:16:30.000000000 -0400
@@ -116,6 +116,8 @@
 #  include <locale.h>
 #endif
 
+#include <math.h>
+
 #include "stdc.h"
 #include <shmbutil.h>