Check for the existence of the Makefile in the port skeleton directory before running make.  If the package origin points to a non-existent or stale port, report this package as orphaned, instead of producing more general `unknown in index' message.
Check for the existence of the Makefile in the port skeleton directory
before running make.  If the package origin points to a non-existent or
stale port, report this package as orphaned, instead of producing more
general `unknown in index' message.

PR:             27707
Submitted by:   myself, roamer
Approved by:    bmah, markm

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