backend/drm: drop unnecessary _XOPEN_SOURCE

We only need base POSIX here.
9 months ago · 6ad9e89a34
parent 220df2aa0f
commit 6ad9e89a34
1 changed files with 1 additions and 1 deletions
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@ -1,4 +1,4 @@
-#define _XOPEN_SOURCE 700
+#define _POSIX_C_SOURCE 200809L
 #include <assert.h>
 #include <drm_fourcc.h>
 #include <drm_mode.h>