ref: 1d1c8b7f5320788f9c0d9736b4519e1b8e33853d dir: /sys/src/libavl/mkfile/
</$objtype/mkfile LIB=/$objtype/lib/libavl.a OFILES=\ avl.$O\ HFILES=\ /sys/include/avl.h\ </sys/src/cmd/mksyslib