Merge branch 'jc/qsort-s-alignment-fix'

Fix a hand-rolled alloca() imitation that may have violated alignment requirement of data being sorted in compatibility implementation of qsort_s() and stable qsort(). * jc/qsort-s-alignment-fix: stable-qsort: avoid using potentially unaligned access compat/qsort_s.c: avoid using potentially unaligned access