FreeBSD 10
Linux (Fedora, Ubuntu, and CentOS distributions)
macOS
+ OpenBSD
nmh was known in the distant past to compile on the following platforms (save
the exceptions noted below), using an ANSI C compiler, such as gcc:
FreeBSD 9
IRIX 6.5
NetBSD 1.4.2
- OpenBSD 5.4
Solaris 7, 8, and 11 (sparc,x86)
SunOS 4.1