#47: benchmark: unlock CLOCK_REALTIME on FreeBSD

On FreeBSD, an extra macro must be defined to make CLOCK_REALTIME available.
aklomp · Nov 20, 2019 · 42def00 · 42def00
1 parent 5d06820
commit 42def00
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/test/benchmark.c b/test/benchmark.c
@@ -1,4 +1,12 @@
-#define _POSIX_C_SOURCE 199309L		// for clock_gettime()
+// For clock_gettime(2):
+#ifndef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 199309L
+#endif
+
+// For CLOCK_REALTIME on FreeBSD:
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE   600
+#endif
 
 #include <stdbool.h>
 #include <sys/types.h>