-platforms are A/UX, Darwin/Mac OS X, FreeBSD, Linux, NetBSD, and Windows
-with Cygwin.
+platforms (tested versions) are: AIX (3.2.5), A/UX (3.0.1), FreeBSD
+(4.5), HP-UX (10.20), IRIX (6.5), Linux (2.x), Mac OS X (10.x), NetBSD
+(1.5.2/i386, 1.5.3/m68k), Solaris (2.5.1, 2.6), and Windows with Cygwin.