Current develop21 fails to build under Unix/Linux...

Current develop21 fails to build under Unix/Linux...

I just cloned the official repo maybe five minutes ago and attempted to build develop21. I did do the recursive clone, but got this anyway.
[code]
Scanning dependencies of target LuaEngine
[ 27%] Building CXX object src/modules/Eluna/CMakeFiles/LuaEngine.dir/GroupHooks.cpp.o
In file included from /usr/src/zero/server/src/shared/Database/DatabaseEnv.h:46:0,
from /usr/src/zero/server/src/game/Object/Player.h:33,
from /usr/src/zero/server/src/modules/Eluna/LuaEngine.h:17,
from /usr/src/zero/server/src/modules/Eluna/HookHelpers.h:10,
from /usr/src/zero/server/src/modules/Eluna/GroupHooks.cpp:11:
/usr/src/zero/server/src/shared/Database/Database.h: In constructor âDatabase::Database()â:
/usr/src/zero/server/src/shared/Database/Database.h:822:16: warning: âDatabase::m_pingIntervallmsâ will be initialized after [-Wreorder]
/usr/src/zero/server/src/shared/Database/Database.h:740:37: warning: âDatabase::DBTransHelperTSS* Database::m_TransStorageâ [-Wreorder]
/usr/src/zero/server/src/shared/Database/Database.h:658:9: warning: when initialized here [-Wreorder]
In file included from /usr/src/zero/server/src/modules/Eluna/LuaEngine.h:20:0,
from /usr/src/zero/server/src/modules/Eluna/HookHelpers.h:10,
from /usr/src/zero/server/src/modules/Eluna/GroupHooks.cpp:11:
/usr/src/zero/server/src/game/WorldHandlers/World.h: At global scope:
/usr/src/zero/server/src/game/WorldHandlers/World.h:415:9: error: âunordered_mapâ in namespace âstdâ does not name a type
compilation terminated due to -Wfatal-errors.
make[2]: *** [src/modules/Eluna/CMakeFiles/LuaEngine.dir/GroupHooks.cpp.o] Error 1
make[1]: *** [src/modules/Eluna/CMakeFiles/LuaEngine.dir/all] Error 2
make: *** [all] Error 2
[/code]
Looks like a typedef issue at first glance. I imagine Reaper already has a fix for it. I am cooking dinner and cannot dig into it yet.