1 files changed, 1 insertions, 0 deletions
diff --git a/src/main.c b/src/main.c
index 094197a..e6f00cc 100644
--- a/src/main.c
+++ b/src/main.c
@@ -24,6 +24,7 @@ THE SOFTWARE.
 #ifndef __FreeBSD__
 #define _POSIX_C_SOURCE 1 /* fileno() */
 #define _BSD_SOURCE /* strdup() */
+#define _DARWIN_C_SOURCE /* strdup() on OS X */
 #endif
 
 /* system includes */