rand
====

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

Gnulib module: rand

Portability problems fixed by Gnulib:

  * This function crashes when used in multithreaded programs on some platforms: CheriBSD.

Portability problems not fixed by Gnulib:

  * This function is only defined as an inline function on some platforms: Android 4.4.

  * This function is not multithread-safe on some platforms: musl libc, macOS 12.5, FreeBSD 13.2, NetBSD 9.3, AIX 7.1, Solaris 11.4.