ref: cc8e899df73f9b368faf7d6e9e98f0e0494af2bd
dir: /sys/src/libsec/amd64/mkfile/
objtype=amd64 </$objtype/mkfile LIB=/$objtype/lib/libsec.a OFILES=\ chachablock.$O\ md5block.$O\ sha1block.$O\ aesni.$O\ HFILES=/sys/include/libsec.h </sys/src/cmd/mksyslib