Mk/bsd.command.mk: missing CSH tag

[O. Hartmann]

Hello out there,
I was trying porting some unusual scientific software to the ports 
collection (the first time I do) and run into problems. The port does 
not have any kind of Makefile environment, it is build and installed via 
a csh script. These scripts also seem to run via ${SH}, but it would be 
nice to ${CSH}. Is it possible to import this tag into

Mk/bsd.command.mk?

Thanks,

Oliver