From Markus Trenkwalder, "Mingws gcc includes a file called types.h which in turn defines _TYPES_H_.  types.h in the directx plugin defines the same include guard.  I've renamed the guard name in this file to _DX_TYPES_H_.  Now the plugin compile in mingw too."
From Markus Trenkwalder, "Mingws gcc includes a file called types.h which in turn defines
_TYPES_H_.  types.h in the directx plugin defines the same include
guard.  I've renamed the guard name in this file to _DX_TYPES_H_.  Now
the plugin compile in mingw too."


git-svn-id: 23b6355f2bb369032457de4eb5f713ee134f73a8@5239 16af8721-9629-0410-8352-f15c8da7e697

joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg