ref: 793efcee28211f3670a70e42efd7fa3d9a3ec92d dir: /sys/src/libc/386/387/mkfile/
</$objtype/mkfile LIB=/$objtype/lib/lib387.a OFILES=\ atan.$O\ tan.$O\ atan2.$O\ exp.$O\ asin.$O\ log.$O\ sin.$O\ </sys/src/cmd/mksyslib