--- libev/ev.c	2007/12/22 15:20:13	1.197
+++ libev/ev.c	2007/12/23 04:45:51	1.198
@@ -282,9 +282,11 @@
 typedef ev_watcher_list *WL;
 typedef ev_watcher_time *WT;
 
+#if EV_USE_MONOTONIC
 /* sig_atomic_t is used to avoid per-thread variables or locking but still */
 /* giving it a reasonably high chance of working on typical architetcures */
 static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
+#endif
 
 #ifdef _WIN32
 # include "ev_win32.c"