free
====

POSIX specification:
 https://pubs.opengroup.org/onlinepubs/9699919799/functions/free.html

Gnulib module: free-posix

Portability problems fixed by Gnulib:

  * This function may clobber errno on many platforms: glibc 2.32, Mac OS X, FreeBSD, NetBSD, OpenBSD 4.4, Minix, AIX, HP-UX, IRIX, Cygwin, mingw, MSVC.

Portability problems not fixed by Gnulib: