REQUIREMENTS
PRE-INSTALL
POST-INSTALL
PRECAUTION
If you don't remove libpcre before building this port libpcre will
be a runtime dependency of zsh. This is a problem on systems where
zsh needs to be available at boot before the directory containing
libpcre.so is mounted. The same applies to gdbm.so.
MISC
zsh-lovers.1 is taken from http://www.grml.org/zsh/zsh-lovers.1