Update to ZDoom r1814:

- Look for files in Mac-like places on Macs.
- Fixed: The non-Windows CreatePath can fail if part of the path already
  exists, because mkdir will return an error code for trying to recreate
  an existing directory.
- Because entryway timed it, here is a new version of R_PointToAngle2 that is
  closer to the original. The old code was shorter but a little slower. The
  new code is a bit faster than the original with VC++ and about the same
  with GCC. Interestingly, GCC produces code for Killough's version that
  performs about the same as the original, but when compiled with VC++,
  Killough's is notably worse.
- moved ENDOOM lump name definition into gameinfo.
- moved default item drop style into gameinfo.
- moved default respawn time into gameinfo.
- moved default inventory max amount into gameinfo.
- turned Heretic's blocking of the sector for LS_Plat_RaiseAndStayTx0 into
  a parameter instead of having the game mode decide. 
- Applied vertical SBARINFO inventory bar patch.
- moved definition of games' default armor icons into gameinfo definition.
- fixed: The PNG loader for true color textures overwrote the IDAT size with
  the IDAT id when reading the image.


git-svn-id: http://mancubus.net/svn/hosted/gzdoom/trunk@450 b0f79afe-0144-0410-b225-9a4edf0717df

src/cmdlib.cpp

@@ -512,12 +512,17 @@ void CreatePath(const char *fn)
 		{
 			*p = '\0';
 		}
-		printf("%s\n", copy);
+		struct stat info;
+		if (stat(copy, &info) == 0)
+		{
+			if (info.st_mode & S_IFDIR)
+				goto exists;
+		}
 		if (mkdir(copy, 0755) == -1)
 		{ // failed
 			return;
 		}
-		if (p != NULL)
+exists:	if (p != NULL)
 		{
 			*p = '/';
 		}