fix #2434: we weren't waiting long enough for the signal

diff --git a/aclocal.m4 b/aclocal.m4
index 9622084..360488d 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1154,7 +1154,7 @@ out:
 
     tock = 0;
 
-    usleep(300);
+    usleep(3000);
 
     if (!tock) {
         fprintf(stderr,"no CLOCK_REALTIME signal\n");