psiginfo
========

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

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function is missing on some platforms: glibc 2.9, macOS 11.1, FreeBSD 13.0, NetBSD 5.0, OpenBSD 6.7, Minix 3.1.8, AIX 5.1, HP-UX 11, Cygwin 1.7.9, mingw, MSVC 14, Android 4.1.