message: Move common `make` flags to environment variables
diff: @@ -6,8 +6,9 @@ commands:
  - checkout
  - run: git submodule update --init
  - run: export CXXFLAGS_EXTRA="-Werror"
  - - run: make --keep-going nas2d
  - - run: make --keep-going
  + - run: export MAKEFLAGS="--keep-going"
  + - run: make nas2d
  + - run: make
  jobs:
  build-linux:
  @@ -32,7 +33,8 @@ jobs:
  - checkout
  - run: git submodule update --init
  - run: export CXXFLAGS_EXTRA="-Werror"
  - - run: make --keep-going intermediate
  + - run: export MAKEFLAGS="--keep-going"
  + - run: make intermediate
  workflows:
  build:
  