--- building in FreeBSD4 ---
new source -> compiling ../src/Upass.i3
new source -> compiling ../src/Secret.i3
new source -> compiling ../src/Secret.m3
new source -> compiling ../src/Main.m3
 -> linking cvpasswd
===>  Installing for cvsup-without-gui-16.1h_2
===>   Generating temporary packing list
===>  Checking if net/cvsup-without-gui already installed
===>   cvsup-without-gui-16.1h_2 is already installed
      You may wish to ``make deinstall'' and install this port again
      by ``make reinstall'' to upgrade it properly.
      If you really wish to overwrite the old port of net/cvsup-without-gui
      without deleting it first, set the variable "FORCE_PKG_REGISTER"
      in your environment or the "make install" command line.
*** Error code 1

Stop in /usr/ports/net/cvsup-without-gui.