gmake TSP_TARGET=unknown TSP_MODE=debug		build
gmake[1]: Entering directory `/usr/ports/net/tsp/work/tsp'
/usr/ports/net/tsp/work/tsp/make/Makeparams:57: /usr/ports/net/tsp/work/tsp/make/Makeparams.unknown.debug: No such file or directory
gmake[1]: *** No rule to make target `/usr/ports/net/tsp/work/tsp/make/Makeparams.unknown.debug'.  Stop.
gmake[1]: Leaving directory `/usr/ports/net/tsp/work/tsp'
gmake: *** [all] Error 2