two-pcbs-installed

I have two different pcb programs installed now.
For one, I used
.configure --prefix=/opt/pcbhead --enable-maintainer-mode
make
make install
and PATH leads to both /opt/pcb/bin:/opt/pcbhead/bin
The other installed PCB was made with
./configure --prefix=/opt/pcb --disable-doc --with-gui=lesstif
make
make install
Since the pcb executable is a script containing hard-coded paths to
executable parts of PCB, I renamed /opt/pcbhead/bin/pcb to
/opt/pcbhead/bin/pcbhead and now I can excute pcb or pcbhead
from any dir on my workstation.