Finally reverted almost all changes regarding round. Seems to be a too recent...

Finally reverted almost all changes regarding round. Seems to be a too recent feature as almost no compiler supports it.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@903 dfc29bdd-3216-0410-991c-e03cc46cb475

include/irrMath.h

@@ -17,11 +17,6 @@
 	#define floorf(X) floor(X)
 	#define powf(X,Y) pow(X,Y)
 	#define fmodf(X,Y) fmod(X,Y)
-#if defined(_IRR_SOLARIS_PLATFORM_)
-	#define roundf(X) (floor( X + 0.5f ))
-#else
-	#define roundf(X) round(X)
-#endif
 #endif
 
 namespace irr
@@ -240,7 +235,7 @@ namespace core
 
 	inline f32 round_( f32 x )
 	{
-		return roundf(x);
+		return floor( x + 0.5f );
 	}
 
 	REALINLINE void clearFPUException ()