simplified calls to round

dev/extend/ap_extend.c

@@ -52,9 +52,9 @@
 #include <limits.h>
 #include <float.h>
 
-#if defined unix || defined __GNUC__
+//#ifdef unix
 #define round(x) lround((x))
-#endif
+//#endif
 
 #ifndef HUGE
 #define HUGE 3.40282347e+38F