`make' will fail if hash.h exists for some reason and gxx-hash needs to be rebuilt.  Fix this.
`make' will fail if hash.h exists for some reason and gxx-hash needs to be
rebuilt.  Fix this.

Submitted by:	bde

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase