islessequal
===========

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

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function is missing on some platforms: Mac OS X 10.5, NetBSD 5.0, OpenBSD 3.8, AIX 5.1, IRIX 6.5, Solaris 11.4, Android 9.0.