1) Get ipcs.tar from, say, rich.pppl.gov ~gibney/ipcs/ipcs.tar
   - Note: this is a Solaris-specific tar file, but Makefiles can
     probably be modified for other os's.

2) Create /nstxusr1/ipcs2 or whatever directory will be the production dir.

3) Unpack ipcs.tar ;  modify /opt/ipcs to /nstxusr1/ipcs2 ...

   > tar xf ipcs.tar    #creates subdirectory "ipcs"
   > find -exec grep -l '/opt/ipcs' {} \;

           Edit the files listed by find/grep.

   > cd ipcs
   > make              #note: this won't complete successfully
   > make install      #copy to production directory ...
   > make              #repeat make with installed stuff
   > make install      #copy remaining stuff to production dir