Allow for overriding feature test macros

2022-09-11 00:44:14 +02:00 · 2022-09-11 00:44:14 +02:00 · 22a121383f
commit 22a121383f
parent 0e89bb9f46
1 changed files with 6 additions and 1 deletions
--- a/liberty.c
+++ b/liberty.c
@ -16,8 +16,13 @@
 *
 */

-#define _POSIX_C_SOURCE 199309L
+#ifndef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200112L
+#endif
+
+#ifndef _XOPEN_SOURCE
 #define _XOPEN_SOURCE 600
+#endif

 #include <stdio.h>
 #include <stddef.h>