Using a fresh checkout from CVS HEAD, I get the following on my machine:
% ipcclean --version
/Users/neilc/local/pgsql-cvs/bin/ipcclean: line 114: ipcs: command not
found
This machine is running a pretty standard install of OSX 10.3.3.
At the very least, we shouldn't bother installing ipcclean if it is
totally non-functional on this platform.
-Neil