ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/external/bsd/pcc/dist/pcc/os/  direct

[DIR]win32/  direct  36208+ twin directories
[DIR]openbsd/  direct  1131+ twin directories
[DIR]none/  direct  1028+ twin directories
[DIR]nextstep/  direct  536+ twin directories
[DIR]netbsd/  direct  2256+ twin directories
[DIR]mirbsd/  direct  89 twin directories
[DIR]midnightbsd/  direct  61 twin directories
[DIR]linux/  direct  31577+ twin directories
[DIR]freebsd/  direct  4076+ twin directories
[DIR]dragonfly/  direct  148 twin directories
[DIR]darwin/  direct  2261+ twin directories
[DIR]CVS/  direct  65535+ twin directories
[DIR]bsd/  direct  4099+ twin directories