I get the following error while compiling on El Capitan: /Users/*******/TrinityCore/src/server/game/Server/Packets/BattlePetPackets.cpp:84:18: fatal error:
use of overloaded operator '<<' is ambiguous (with operand types
'WorldPacket' and 'size_type' (aka 'unsigned long'))
_worldPacket << Pets.size(); UPDATE: Since zlib wasn't in the El Captain's default homebrew repo, I had to brew tap homebrew/dupes, in order to add it, and then install it - after that, the build went fine.