Add extra flags for Clang compatibility in CMake build configuration

Author: alessandrograssi-dev

.github/workflows/build.yml

@@ -43,7 +43,11 @@ jobs:
         run: |
           mkdir -p build
           cd build
-          cmake -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} ..
+          EXTRA_FLAGS=""
+          if [ "${{ matrix.compiler }}" = "clang" ]; then
+            EXTRA_FLAGS="-DCMAKE_CXX_FLAGS=-fpermissive\ -Wno-writable-strings\ -Wno-pointer-arith"
+          fi
+          cmake -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} $EXTRA_FLAGS ..
 
       - name: Build
         run: |