vchoi_fork

[svn-r2951] Purpose:
    Bug fix
Description:
    Previous re-arrangement of FUNC_ENTER macro was a _little_ too agressive
    about not re-checking for library or interface re-initialization.  Although
    it happens very rarely that the library is shut down and then re-started
    the library & interface initialization functions weren't getting run in
    that case.
Solution:
    Separated out the library, interface & function checks again.  This version
    is still a little faster than the previous way things were being done.
Platforms tested:
    FreeBSD 4.1.1 (hawkwind)