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Re: consistency in glibc add-on directory names?


There are no crypt or localedata add-ons for any current version.
Those were long ago incorporated into glibc directly.

There are add-ons in the sense of glibc's configure command line, and then
there are add-ons that are in separate tarballs.  At the moment, nptl is
the only add-on subdirectory that is included in the main glibc tarball.
In a separate tarball but from canonical glibc cvs, there is libidn.  For
2.3, there is still linuxthreads too in that category.  

nptl is the preferred, supported, and current pthreads implementation for
Linux 2.6 kernels.  Linuxthreads is necessary to support Linux 2.4 kernels.
In glibc 2.3.x, one should use whichever add-on matches one's desired
kernel environment.  For 2.4 and future releases, Daniel Jacobowitz has
taken over Linuxthreads; it will be up to him how it is distributed and used.

There is also of course the ports add-on, which is "officially unofficial"
and what it means or is good for is determined by us here.  As it exists
for 2.3.5, there is one ports add-on tarball.  It remains to be seen how we
will distribute this in the future.


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