Merge commit 'be71c8142d4225dd9af4742ec050f30fcbc2aa5e'
* commit 'be71c8142d4225dd9af4742ec050f30fcbc2aa5e':
Add qsort_r() implementation to the C library.
This reverts commit 754c178ae551aedcbbfd3bfd1c1c3b710d9ad989.
Turns out we don't need it afterall (needed a stable sort anyways).
So, we'll make that change in the dev branch instead.
NOTE: This replaces qsort.c with the FreeBSD version. While
the patch changes the source, it should not alter the
implementation that should use the exact same algorithm.