Remove the '-m64' flag, since it screws up builds on 32-bit machines. 64-bit machines should be doing 64-bit builds by default anyhow.
Remove the '-m64' flag, since it screws up builds on 32-bit machines. 64-bit machines should be doing 64-bit builds by default anyhow.

sideeffects/Field3D,sideeffects/Field3D,sideeffects/Field3D