Fixed link error with clang on x86_64.
Fixed link error with clang on x86_64.

nounoursheureux/MCServer,thetaeo/cuberite,Altenius/cuberite,Haxi52/cuberite,ionux/MCServer,nevercast/cuberite,electromatter/cuberite,kevinr/cuberite,bendl/cuberite,bendl/cuberite,Altenius/cuberite,Altenius/cuberite,tonibm19/cuberite,mc-server/MCServer,thetaeo/cuberite,zackp30/cuberite,nichwall/cuberite,nichwall/cuberite,nicodinh/cuberite,ionux/MCServer,johnsoch/cuberite,birkett/cuberite,guijun/MCServer,tonibm19/cuberite,ionux/MCServer,MuhammadWang/MCServer,mjssw/cuberite,mmdk95/cuberite,Tri125/MCServer,Howaner/MCServer,nicodinh/cuberite,mmdk95/cuberite,marvinkopf/cuberite,nicodinh/cuberite,jammet/MCServer,birkett/MCServer,MuhammadWang/MCServer,Schwertspize/cuberite,bendl/cuberite,marvinkopf/cuberite,birkett/cuberite,nounoursheureux/MCServer,mmdk95/cuberite,Fighter19/cuberite,linnemannr/MCServer,HelenaKitty/EbooMC,electromatter/cuberite,Haxi52/cuberite,SamOatesPlugins/cuberite,kevinr/cuberite,kevinr/cuberite,Howaner/MCServer,zackp30/cuberite,linnemannr/MCServer,nounoursheureux/MCServer,guijun/MCServer,SamOatesPlugins/cuberite,Frownigami1/cuberite,nevercast/cuberite,QUSpilPrgm/cuberite,nevercast/cuberite,marvinkopf/cuberite,Tri125/MCServer,guijun/MCServer,Haxi52/cuberite,Frownigami1/cuberite,kevinr/cuberite,nevercast/cuberite,QUSpilPrgm/cuberite,nichwall/cuberite,Haxi52/cuberite,guijun/MCServer,mc-server/MCServer,guijun/MCServer,Tri125/MCServer,Tri125/MCServer,Fighter19/cuberite,Schwertspize/cuberite,birkett/cuberite,tonibm19/cuberite,johnsoch/cuberite,mc-server/MCServer,Schwertspize/cuberite,thetaeo/cuberite,marvinkopf/cuberite,thetaeo/cuberite,HelenaKitty/EbooMC,johnsoch/cuberite,SamOatesPlugins/cuberite,nounoursheureux/MCServer,MuhammadWang/MCServer,Schwertspize/cuberite,bendl/cuberite,tonibm19/cuberite,MuhammadWang/MCServer,Altenius/cuberite,mjssw/cuberite,Howaner/MCServer,zackp30/cuberite,johnsoch/cuberite,guijun/MCServer,ionux/MCServer,mjssw/cuberite,electromatter/cuberite,nichwall/cuberite,birkett/MCServer,HelenaKitty/EbooMC,johnsoch/cuberite,mmdk95/cuberite,zackp30/cuberite,Frownigami1/cuberite,electromatter/cuberite,Altenius/cuberite,nicodinh/cuberite,birkett/cuberite,bendl/cuberite,SamOatesPlugins/cuberite,thetaeo/cuberite,mmdk95/cuberite,nichwall/cuberite,nicodinh/cuberite,ionux/MCServer,Haxi52/cuberite,electromatter/cuberite,Frownigami1/cuberite,kevinr/cuberite,Howaner/MCServer,birkett/MCServer,HelenaKitty/EbooMC,jammet/MCServer,linnemannr/MCServer,birkett/cuberite,QUSpilPrgm/cuberite,nounoursheureux/MCServer,nevercast/cuberite,mjssw/cuberite,birkett/cuberite,Howaner/MCServer,Fighter19/cuberite,mc-server/MCServer,MuhammadWang/MCServer,birkett/MCServer,QUSpilPrgm/cuberite,jammet/MCServer,Schwertspize/cuberite,mc-server/MCServer,jammet/MCServer,marvinkopf/cuberite,mjssw/cuberite,linnemannr/MCServer,zackp30/cuberite,thetaeo/cuberite,Tri125/MCServer,Fighter19/cuberite,mc-server/MCServer,jammet/MCServer,nevercast/cuberite,Howaner/MCServer,jammet/MCServer,Tri125/MCServer,QUSpilPrgm/cuberite,marvinkopf/cuberite,Haxi52/cuberite,linnemannr/MCServer,ionux/MCServer,birkett/MCServer,nounoursheureux/MCServer,nicodinh/cuberite,mjssw/cuberite,SamOatesPlugins/cuberite,linnemannr/MCServer,birkett/MCServer,electromatter/cuberite,tonibm19/cuberite,zackp30/cuberite,Fighter19/cuberite,QUSpilPrgm/cuberite,tonibm19/cuberite,HelenaKitty/EbooMC,kevinr/cuberite,Frownigami1/cuberite,mmdk95/cuberite,nichwall/cuberite,Fighter19/cuberite