2010-07-21  Ozkan Sezer  <sezeroz@gmail.com>

	* _mingw.h (__MINGW_ATTRIB_UNUSED): Define as __attribute__((unused))
	for gcc.
	(__MINGW_ATTRIB_USED): Define as __attribute__((used)) for gcc, or as
	__MINGW_ATTRIB_UNUSED where it is not supported ie. gcc < 3.1 or !gcc.


git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@2914 4407c894-4637-0410-b4f5-ada5f102cad1