build: use _DEFAULT_SOURCE

Add _DEFAULT_SOURCE FTM in order to avoid warnings with recent glibc.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 1 insertions, 0 deletions

diff --git a/main.c b/main.c
index fb27665..11b33ff 100644
--- a/main.c
+++ b/main.c
@@ -17,6 +17,7 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#define _DEFAULT_SOURCE
 #define _BSD_SOURCE
 #define _GNU_SOURCE
 #define _XOPEN_SOURCE	700