5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/setkey.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function is missing on some platforms:
17 glibc 2.32, NetBSD 5.0, OpenBSD 6.7, Minix 3.1.8, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
19 This function is not declared in @code{<stdlib.h>}
20 (without @code{-D_GNU_SOURCE}) on some platforms:
21 glibc (at least 2.11--2.13).