Fix __STDC_VERSION__ check in upnpdev.h
@@ -20,7 +20,7 @@ struct UPNPDev {
char * st;
char * usn;
unsigned int scope_id;
-#if defined(__STDC_VERSION) && __STDC_VERSION__ >= 199901L
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
/* C99 flexible array member */
char buffer[];
#elif defined(__GNUC__)
