make cmake more user-friendly
make cmake more user-friendly

pandaworrior/rDSN,mcfatealan/rDSN,shengofsun/rDSN,imzhenyu/rDSN,glglwty/rDSN,Microsoft/rDSN,lshmouse/rDSN,Microsoft/rDSN,pandaworrior/rDSN,qinzuoyan/rDSN,lshmouse/rDSN,imzhenyu/rDSN,shengofsun/rDSN,pandaworrior/rDSN,ykwd/rDSN,ykwd/rDSN,lshmouse/rDSN,qinzuoyan/rDSN,qinzuoyan/rDSN,Microsoft/rDSN,qinzuoyan/rDSN,imzhenyu/rDSN,ykwd/rDSN,shengofsun/rDSN,glglwty/rDSN,qinzuoyan/rDSN,shengofsun/rDSN,mcfatealan/rDSN,mcfatealan/rDSN,imzhenyu/rDSN,glglwty/rDSN,Microsoft/rDSN,Microsoft/rDSN,lshmouse/rDSN,Microsoft/rDSN,shengofsun/rDSN,imzhenyu/rDSN,mcfatealan/rDSN,shengofsun/rDSN,glglwty/rDSN,ykwd/rDSN,lshmouse/rDSN,Microsoft/rDSN,glglwty/rDSN,pandaworrior/rDSN,pandaworrior/rDSN,qinzuoyan/rDSN,ykwd/rDSN,qinzuoyan/rDSN,shengofsun/rDSN,lshmouse/rDSN,shengofsun/rDSN,imzhenyu/rDSN,imzhenyu/rDSN,qinzuoyan/rDSN,lshmouse/rDSN,Microsoft/rDSN,imzhenyu/rDSN,lshmouse/rDSN