cmake: Create the compile command database by default.
cmake: Create the compile command database by default.

jhrozek/cmocka,JonathonReinhart/cmocka,jamesmunns/CMocka,nuumio/cmocka,tyc/cmocka,jhrozek/cmocka,VladimirTyrin/cmocka,VladimirTyrin/cmocka,nuumio/cmocka,dsch/cmocka,clibs/cmocka,clibs/cmocka,nuumio/cmocka,Odie/cmocka,JonathonReinhart/cmocka,jamesmunns/CMocka,dsch/cmocka,jhrozek/cmocka,wingyplus/cmocka,tyc/cmocka,jschmidlapp/cmocka,Odie/cmocka,tyc/cmocka,wingyplus/cmocka,jschmidlapp/cmocka,Odie/cmocka,jschmidlapp/cmocka