Command explanations
mv doc/apps/passwd.pod
doc/apps/openssl-passwd.pod : We do this because otherwise
openssl installs it's passwd man page over the existing system one which
isn't what we want.
make MANDIR=/usr/share/man
make MANDIR=/usr/share/man install : These
commands install openssl with the man pages in /usr/share/man instead of
the default which is /etc/ssl/man.
rmdir /etc/ssl/lib : This is simply a
tidy-up command. For some reason, the openssl install routine creates
the /etc/ssl/lib directory even though the libraries have been installed
in /usr/lib. We remove it to keep things nice and tidy!