use brew compiler

Author: FriedLongJohns

.github/workflows/release.yml

@@ -308,7 +308,7 @@ jobs:
         if: runner.os == 'macOS'
         run: |
           source ./venv/bin/activate
-          make -j3 TILES=${{ matrix.tiles }} SOUND=${{ matrix.tiles }} RELEASE=1 LUA=1 LOCALIZE=1 LANGUAGES=all BACKTRACE=0 PCH=0 USE_HOME_DIR=1 OSX_MIN=11 FRAMEWORK=1 dmgdist
+          make -j3 TILES=${{ matrix.tiles }} SOUND=${{ matrix.tiles }} RELEASE=1 LUA=1 LOCALIZE=1 LANGUAGES=all BACKTRACE=0 PCH=0 USE_HOME_DIR=1 OSX_MIN=11 FRAMEWORK=1 COMPILER=$(brew --prefix llvm)/bin/clan dmgdist
           mv CataclysmBN-unstable.dmg cbn-${{ matrix.artifact }}-${{ needs.metadata.outputs.tag_name }}.dmg
 
       - name: Set up JDK 11 (android)