X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/5f4309094878ff686c716f62d917754f09b889df..12208248afbfcdedac9494a68ab83f203335c1a3:/math/gfreduce.h

diff --git a/math/gfreduce.h b/math/gfreduce.h
index 2c8a884..b60c8fa 100644
--- a/math/gfreduce.h
+++ b/math/gfreduce.h
@@ -34,6 +34,8 @@
 
 /*----- Header files ------------------------------------------------------*/
 
+#include <stdio.h>
+
 #ifndef CATACOMB_GF_H
 #  include "gf.h"
 #endif