[disable_warnings] * added -Wlogical-op-parentheses to clang * added -Wundef to clang
[disable_warnings]
* added -Wlogical-op-parentheses to clang
* added -Wundef to clang

renemilk/DUNE-Stuff,renemilk/DUNE-Stuff,renemilk/DUNE-Stuff