prepare for the release of rrdtool-1.4.2

[rrdtool.git] / src / rrd_diff.c

diff --git a/src/rrd_diff.c b/src/rrd_diff.c
index ae8cfcb..ef8a1b5 100644 (file)
--- a/src/rrd_diff.c
+++ b/src/rrd_diff.c
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * RRDtool 1.3rc2  Copyright by Tobi Oetiker, 1997-2008
+ * RRDtool 1.4.2  Copyright by Tobi Oetiker, 1997-2009
  * This code is stolen from rateup (mrtg-2.x) by Dave Rand
  *****************************************************************************
  * diff calculate the difference between two very long integers available as
@@ -35,6 +35,7 @@
  *
  *****************************************************************************/
 
+#include <ctype.h>
 #include "rrd_tool.h"
 
 double rrd_diff(