Which threading lib is it?

[Simon 'corecode' Schubert]

Matthew Dillon wrote:
:At some point, are we going to want to remove libc_r as part of the
:upgrade process?  (I'm assuming that's going to force recompilation of
:many 3rd-party apps).  I can imagine it can make troubleshooting more
:difficult if we're going to have some people with libc_r and libthread_xu
:and it won't have been a conscious decision in either case.
    Well, we have libpthread.so which is what all recently compiled programs
    should be linked against, so no new builds will ever be directly linked
    to libc_r any more (or shouldn't be).  This means we can simply relink
    libpthread.so to libthread_xu (i.e. have 'make upgrade' do that),
    declare libc_r deprecated, and stop building and installing it.
    Doing that now, in HEAD, might be a good idea.
I don't see any benefit in removing libc_r.  Maybe somebody wants to use 
it for certain things.  I'd just keep it around.

cheers
  simon
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