CMake: Fixed linux builds.
CMake: Fixed linux builds.

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