1 files changed, 9 insertions, 0 deletions
diff --git a/utils.c b/utils.c
index 2211a8c..f6582ef 100644
--- a/utils.c
+++ b/utils.c
@@ -10,6 +10,15 @@
  *
  */
 
+#ifdef BSD_LIKE
+/* Needed for SIGWINCH on OpenBSD. */
+# define _BSD_SOURCE
+/* Needed for SIGWINCH on FreeBSD. */
+# define __BSD_VISIBLE
+/* Needed for SIGWINCH on Darwin. */
+# define _DARWIN_C_SOURCE 1
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>