RTS: Add missing #include

Every Unix is subtly different.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/sail.c b/lib/sail.c
index e0daf0cf..4e5694e9 100644
--- a/lib/sail.c
+++ b/lib/sail.c
@@ -3,6 +3,7 @@
 #include<stdio.h>
 #include<stdlib.h>
 #include<string.h>
+#include<time.h>
 
 #include"sail.h"