include/
	* libiberty.h [defined (HAVE_DECL_STRNLEN) &&
	!HAVE_DECL_STRNLEN] (strnlen): New prototype.
	gcc/
	* configure.ac: Use gcc_AC_CHECK_DECLS to check for strnlen
	prototype.
	* config.in: Regenerate.
	* configure: Likewise.

From-SVN: r211401