* config/alpha/osf.h (TARGET_OS_CPP_BUILTINS): Define
	__STDC_VERSION__ to ISO C94 for C++.

	* fixinc/inclhack.def (alpha_wchar): New fix.
	* fixinc/fixincl.x: Regenerate.
	* fixinc/tests/base/wchar.h: New file.

From-SVN: r74558