ref: b3e06559475b0130a7a2fb56ac4d131d13d2012f dir: /sys/src/libsec/spim/mkfile/
objtype=spim </$objtype/mkfile LIB=/$objtype/lib/libsec.a HFILES=/sys/include/libsec.h OFILES=\ </sys/src/cmd/mksyslib