1 files changed, 2 insertions, 0 deletions
diff --git a/hex.c b/hex.c
index 41afcf17..35a2f4b2 100644
--- a/hex.c
+++ b/hex.c
@@ -1,5 +1,7 @@
 /* $Id$ */
+#ifndef S_SPLINT_S
 #include <unistd.h>
+#endif /* S_SPLINT_S */
 #include <stdlib.h>
 #include <stdio.h>
 #include <math.h>