fix linux build
fix linux build

FollowMyVote/bitshares,dacsunlimited/dac_play,RemitaBit/Remitabit,bitshares/bitshares-0.x,FollowMyVote/bitshares,dacsunlimited/dac_play,jakeporter/Bitshares,Ziftr/bitshares,bitsuperlab/cpp-play,bitshares/bitshares,RemitaBit/Remitabit,bitsuperlab/cpp-play,frrp/bitshares,bitshares/devshares,bitshares/bitshares,drltc/keyid,bitshares/devshares,bitsuperlab/cpp-play,camponez/bitshares,RemitaBit/Remitabit,bitshares/devshares,bitshares/bitshares-0.x,dacsunlimited/dac_play,drltc/keyid,bitshares/bitshares-0.x,Ziftr/bitshares,bitsuperlab/cpp-play,Ziftr/bitshares,bitshares/devshares,bitshares/bitshares-0.x,dacsunlimited/dac_play,bitshares/devshares,bitshares/bitshares,jakeporter/Bitshares,FollowMyVote/bitshares,drltc/keyid,jakeporter/Bitshares,denkhaus/bitsharesx,bitsuperlab/cpp-play,Ziftr/bitshares,FollowMyVote/bitshares,camponez/bitshares,camponez/bitshares,jakeporter/Bitshares,bitsuperlab/cpp-play,bitshares/bitshares-0.x,bitshares/bitshares-0.x,drltc/keyid,frrp/bitshares,camponez/bitshares,RemitaBit/Remitabit,RemitaBit/Remitabit,camponez/bitshares,bitshares/devshares,bitshares/bitshares,dacsunlimited/dac_play,dacsunlimited/dac_play,frrp/bitshares,jakeporter/Bitshares,FollowMyVote/bitshares,bitshares/bitshares,frrp/bitshares,jakeporter/Bitshares,bitshares/bitshares,FollowMyVote/bitshares,denkhaus/bitsharesx,camponez/bitshares,frrp/bitshares,RemitaBit/Remitabit,denkhaus/bitsharesx,denkhaus/bitsharesx,frrp/bitshares