Re: git: af3c78886fd8 - main - Alter the prototype of qsort_r(3) to match POSIX, which adopted the glibc-based interface.

On Fri, Sep 30, 2022 at 10:30:52PM +0000, Xin LI wrote:
> commit af3c78886fd8d4ca5eebdbe581a459a6f6d29d6a
> 
>   Alter the prototype of qsort_r(3) to match POSIX, which adopted the
>   glibc-based interface.
> 
>   Unfortunately, the glibc maintainers, despite knowing the existence
>   of the FreeBSD qsort_r(3) interface in 2004 and refused to add the
>   same interface to glibc based on grounds of the lack of standardization
>   and portability concerns, has decided it was a good idea to introduce
>   their own qsort_r(3) interface in 2007 as a GNU extension with a
>   slightly different and incompatible interface.
> 
>   With the adoption of their interface as POSIX standard, let's switch
>   to the same prototype, there is no need to remain incompatible.

What a sad story, and so unfair to FreeBSD as we now have to deal with
compatibility hacks (as mandree@ had said, having to parenthesize a
function name is an abomination).  Can you elaborate on technical side of
things a bit?  Is GNU qsort_r(3) interface, while incompatible, better
than ours in 1-to-1 comparison, leaving the grief of not going with our
older one aside?  Thanks,

./danfe