don't compare elements with themselves during qsort.
don't compare elements with themselves during qsort.

this is actually a workaround for a bug in gcc, whereby it asserts
inequality of the keys being compared...

chneukirchen/musl-chris2,rofl0r/musl-old,chardi/musl,rofl0r/musl-old,davidlazar/musl,davidlazar/musl,chardi/musl,chardi/musl,chneukirchen/musl-chris2