attempt to properly check if we can use CPU_SET with sched_setaffinity because some older libc had gnu extensions in the definitions of CPU_SET which we do not allow (FSBUILD-226)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16263 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_time.c

@@ -537,7 +537,7 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
 	switch_time_t ts = 0, last = 0;
 	int fwd_errs = 0, rev_errs = 0;
 
-#ifdef HAVE_SCHED_SETAFFINITY
+#ifdef HAVE_CPU_SET_MACROS
 	cpu_set_t set;
 	CPU_ZERO(&set);
 	CPU_SET(0, &set);