perl5.000 patch.0n: [address Configure and build issues]

perl5.000 patch.0n: [address Configure and build issues]

This is my patch  patch.0n  for perl5.000.

This _very_ small patch
    1.  updates the linux and dec_osf hints files,
    2.  adds sv_isobject to global.sym,
    3.  updates Configure to deal with recent Linux nm output, and
    4.  fixes the names in File::Path.

This patch addresses only Configure and build issues for which I have
tested solutions.  It does nothing else.  Maybe some of the other patches
floating around should be included.  Maybe not.  I'm afraid I just
don't have time to think about them now.

Unless something's broken, I hope not to issue any more patches :-)
(Yes, I've said that before, but this one's _really_ small, and linux
support was broken.:-)  Thanks to Kenneth Albanowski for researching,
implementing, and testing the Linux patch.