svn commit: r185684 - head/usr.bin/cpio

[Bruce Evans]

On Sat, 6 Dec 2008, Tim Kientzle wrote:

> Log:
>  Make the GCC-specific __dead2 markers conditional on whether
>  we're compiling under GCC.

These are FreeBSD-specific.  __dead is 4.4BSD-specific, but hasn't
done anything since gcc-1.x.  Though I added __dead2 to support
gcc-2 in 1994, 4.4BSD didn't have it, and NetBSD 4 years ago doesn't
define it or otherwise support the noreturn attribute in <sys/cdefs.h>.

Bruce