I think that POSIX reserves all identifiers defined with a typedef statement 
that that end with the characters "_t" for use within the POSIX header files.
I note that the GDB source code uses a lot a such identifiers.  Should 
we change to another suffix such as "_td" and document that requirement
in the GDB coding rules within file 'gdbint.texinfo'?

Sorry about the poor header in the prevous mailing, I recently switched my
mailing program.

John S. Kallal