2010-07-20  Ozkan Sezer  <sezeroz@gmail.com>

	* crt/gs_support.c (_ReturnAddress, _AddressOfReturnAddress): wrap
	m$vc intrinsics onto gcc builtins.
	(__report_gsfailure): Use _ReturnAddress and _AddressOfReturnAddress.
	Tidy up the win64 ifdefs at the function start.


git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@2910 4407c894-4637-0410-b4f5-ada5f102cad1