acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of HAVE_INITFINI_ARRAY to work...

acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of HAVE_INITFINI_ARRAY to work around...

	gcc/
	* acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of
	HAVE_INITFINI_ARRAY to work around namespace pollution in
	certain versions of newlib system headers.
	* config.in: Regenerate.
	* configure: Regenerate.
	* config/initfini-array.h: Use HAVE_INITFINI_ARRAY_SUPPORT
	instead of HAVE_INITFINI_ARRAY.

	libgcc/
	* config/ia64/crtbegin.S: Use HAVE_INITFINI_ARRAY_SUPPORT
	instead of HAVE_INITFINI_ARRAY.
	* config/ia64/crtend.S: Likewise.

From-SVN: r184503