Add warning about compiler bug against LSMDB.
Add warning about compiler bug against LSMDB.

shaunstanislaus/stronglink,guiquanz/stronglink,Lacra17/stronglink,nkatsaros/stronglink,feld/stronglink,Ryezhang/stronglink,Ryezhang/stronglink,guiquanz/stronglink,shaunstanislaus/stronglink,iOSCowboy/stronglink,iOSCowboy/stronglink,feld/stronglink,btrask/stronglink,iOSCowboy/stronglink,rmoorman/stronglink,rmoorman/stronglink,btrask/stronglink,btrask/stronglink,rmoorman/stronglink,feld/stronglink,guiquanz/stronglink,shaunstanislaus/stronglink,yamingd/stronglink,nkatsaros/stronglink,btrask/stronglink,Ryezhang/stronglink,Lacra17/stronglink,Lacra17/stronglink,nkatsaros/stronglink,yamingd/stronglink,yamingd/stronglink