Every Unix used to have its own implementation of those standard tools. They were often quite buggy and outdated (eg the C compiler that came with SunOS and Sol

Every Unix used to have its own implementation of those standard tools. They were often quite buggy and outdated (eg the C compiler that came with SunOS and Solaris in the mid 1990's only supported K&R syntax). When installing Solaris, Sinix, AIX etc, you'd typically install the GNU tools immediately. I understand the FreeBSD folks' frustration, though.