Enable clock_gettime() for Glibc

1 files changed, 1 insertions, 0 deletions

diff --git a/main.c b/main.c
index bdd222a..1b984d4 100644
--- a/main.c
+++ b/main.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include <assert.h>
 #include <err.h>
 #include <errno.h>