std.c: Add missing <sys/time.h> #include and _XOPEN_SOURCE.

This is required for gettimeofday() to be available (at least on
FreeBSD), causes compiler warnings otherwise.

diff --git a/src/std.c b/src/std.c
index 48f83b53b5856c1ae3c8740bc16d2d60bbaf02f1..b778679b38b30e6c7ac040721fa41cef841d65d6 100644 (file)
--- a/src/std.c
+++ b/src/std.c
@@ -25,9 +25,13 @@
  * @internal
  */
 
+/* Needed for gettimeofday(), at least on FreeBSD. */
+#define _XOPEN_SOURCE 700
+
 #include <config.h>
 #include <string.h>
 #include <math.h>
+#include <sys/time.h>
 #include <glib.h>
 #include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"