Fixed beforeinstall rule.  .CURDIR was spelled .SRCDIR.
Fixed beforeinstall rule.  .CURDIR was spelled .SRCDIR.

Changed beforeinstall rule to use `install -C' instead of `cmp -s'
and `install -c'.  `install -C' has exactly the right semantics
for installing headers and should be used elsewhere.

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