see attached perl script and output.
i recommend you rerun it since i didnt have the most recent musl version 
installed.

On 05/29/2011 01:41 AM, Rich Felker wrote:
> Apologies for the somewhat-slower progress on musl lately. The past
> few weeks I've had a good bit less contiguous time to devote to it.
> One thing that would help me make better use of my time is if I had a
> good list of the remaining areas of functionality that musl is
> missing, so I could use smaller blocks of time to write code that's
> simple and largely independent of everything else.
>
> Would anyone be willing to go through a list of symbols from musl,
> comparing it to the list of functions in the POSIX standard
> (http://pubs.opengroup.org/onlinepubs/9699919799/functions/contents.html)
> and break it down into a list of functions and some categories of
> functionality? For the most part anything in non-essential option
> groups could be omitted or put in a separate list to address later.
>
> Rich
>