1 files changed, 6 insertions, 0 deletions
diff --git a/src/cal.c b/src/cal.c
index 60a2de1..a90546f 100644
--- a/src/cal.c
+++ b/src/cal.c
@@ -20,6 +20,12 @@
 
 /* This is simple CAL parser form Calvaria */
 
+#ifdef __linux__
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE
+#endif
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>