fixed Win32 build

[libfirm] / ir / stat / stat_timing.c

diff --git a/ir/stat/stat_timing.c b/ir/stat/stat_timing.c
index facb013..3c28f50 100644 (file)
--- a/ir/stat/stat_timing.c
+++ b/ir/stat/stat_timing.c
@@ -3,7 +3,7 @@
 #include "stat_timing.h"
 
 /* we can only use the scheduling stuff, if that macro is defined in unistd.h */
-#if _XOPEN_REALTIME != -1
+#if defined(_XOPEN_REALTIME) && _XOPEN_REALTIME != -1
 
 timing_sched_env_t *timing_sched_get(timing_sched_env_t *env)
 {