Allowing user data in lt_dlhandles (revisited)

[Gary V. Vaughan]

Hi!

The attached patch implements association of user data with lt_dlhandles
in a way that doesn't suffer from the problems inherant in Thomas'
patch from last year (i.e. several libraries that share libltdl.la
can independantly manage their own lt_dlhandle related data without
conflict).

It does, however, vastly simplify the code required in GNU m4 to
implement a module loader, and reduces the overhead of maintaining a
parallel list of lt_dlhandles in the client code.

Okay to commit?

Cheers,
        Gary.
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2001-01-05-dlcaller.patch
Description: Text document