ref: f7a16b5e2cc38aed7985b0144bb2655d14ea6f5a dir: /sys/src/games/opl3/mkfile/
</$objtype/mkfile BIN=/$objtype/bin/games TARG=opl3 OFILES=opl3.$O opl3m.$O HFILES= </sys/src/cmd/mkone