Changed not used macro from do {} while(0), to for(;;) { ... break; }

src/nanovg.h

@@ -584,7 +584,7 @@ struct NVGparams* nvgInternalParams(struct NVGcontext* ctx);
 // Debug function to dump cached path data.
 void nvgDebugDumpPathCache(struct NVGcontext* ctx);
 
-#define NVG_NOTUSED(v) do { (void)(1 ? (void)0 : ( (void)(v) ) ); } while(0)
+#define NVG_NOTUSED(v) for (;;) { (void)(1 ? (void)0 : ( (void)(v) ) ); break; }
 
 #ifdef __cplusplus
 }