Not using SIGPIPE if it is not found by configure.

darcs-hash:20051101112607-65a35-d2abfba05342f4c2dd247be20aa257140260d8e9.gz

libsofia-sip-ua/su/su_timer_test.c

@@ -165,9 +165,11 @@ int main(int argc, char *argv[])
 		test_break, 0);
 
   signal(SIGINT, intr_handler);
+#if HAVE_SIGPIPE
   signal(SIGPIPE, intr_handler);
   signal(SIGQUIT, intr_handler);
   signal(SIGHUP, intr_handler);
+#endif
 
   t = su_timer_create(su_root_task(root), interval);
   t1 = su_timer_create(su_root_task(root), 1);