= Cataclysm DDA build from source on Ubuntu 21.10
``
sudo apt build-dep cataclysm-dda-curses cataclysm-dda-data cataclysm-dda-data
git clone https://github.com/CleverRaven/Cataclysm-DDA
cd Cataclysm-DDA
git checkout cdda-experimental-2022-01-27-0622
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DTILES=ON -DSOUND=ON -DLOCALIZE=OFF ..
make -j`nproc`
``
fails with:
``
:part_index_’ may be used uninitialized [-Werror=maybe-uninitialized]
55 | return part_index_;
``
as reported at: https://github.com/CleverRaven/Cataclysm-DDA/issues/52657 now open for 3 months. Basically every commit I tried fails with a different `-Werror` check, they don't test GCC new enough regularly.