define NeedVarargsPrototypes to avoid segfault on x86_64

diff --git a/utils/lndir/lndir.c b/utils/lndir/lndir.c
index 22f1e30..bfce2b5 100644 (file)
--- a/utils/lndir/lndir.c
+++ b/utils/lndir/lndir.c
@@ -43,6 +43,8 @@ in this Software without prior written authorization from the X Consortium.
         %  lndir ../X
 */
 
+#define NeedVarargsPrototypes 1
+
 #include "lndir-Xos.h"
 #include <stdlib.h>
 #include <stdio.h>