* ??:0
*/
-#define log_backtrace() log_backtrace_at(NULL, SOURCE_LOCATOR);
-#define log_backtrace_msg(msg) log_backtrace_at(msg, SOURCE_LOCATOR);
+#define log_backtrace() log_backtrace_at(NULL, OVS_SOURCE_LOCATOR);
+#define log_backtrace_msg(msg) log_backtrace_at(msg, OVS_SOURCE_LOCATOR);
#define BACKTRACE_MAX_FRAMES 31