+nmh is known to compile on the following platforms (save the
+exceptions noted below), using an ANSI C compiler, such as gcc.
+
+AIX 4.1.5.0.01
+FreeBSD
+IRIX 6.5
+Linux 2.2, 2.3, 2.4 (glibc 2.1, glibc 2.2)
+Mac OS X Public Beta
+NetBSD 1.4.2
+OpenBSD
+Solaris 7 and 8 (sparc,x86)
+SunOS 4.1
+
+Known Compilation problems: