[klibc] Don't hardcode paths in klcc

[H. Peter Anvin]

Martin Michlmayr wrote:
> Stop makeklcc.pl from hardcoding paths of cc, ld and strip in the klcc
> script it generates.  Using hardcoded paths is generally a bad idea.
> First, the whole idea of $PATH is that you don't need to hardcode
> paths.  Second, klcc is a Perl script but my hardcoding the paths
> you make it less portable.

In this case, though, it's probably required, since otherwise you could 
end up with some very strange results when cross-compiling.  I'm not 
sure what the ideal answer is, but I think this is wrong.

klcc is a installation-specific, generated Perl script, so portability 
is not an issue.

	-hpa