Fixed macos workflow.

Author: 5cript

.github/workflows/build_and_test.yml

@@ -91,31 +91,28 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - run: brew install ninja boost cryptopp curl llvm@19
+      - run: brew install ninja boost cryptopp curl llvm@19 lld@19
 
       - name: Get Brew Prefix
         run: |
           echo "BREW_PREFIX=$(brew --prefix)" >> $GITHUB_ENV
 
-      - name: Set Env Vars
-        run: |
-          echo "export LDFLAGS=-L$BREW_PREFIX/lib" >> $GITHUB_ENV
-          echo "export CPPFLAGS=-I$BREW_PREFIX/include" >> $GITHUB_ENV
-
       - name: Configure CMake
         run: >
           cmake
-          -DCMAKE_C_COMPILER=$BREW_PREFIX/opt/llvm@19/bin/clang
-          -DCMAKE_CXX_COMPILER=$BREW_PREFIX/opt/llvm@19/bin/clang++
-          -DCMAKE_LINKER=$BREW_PREFIX/opt/llvm@19/bin/lld
+          -DCMAKE_C_COMPILER=${{env.BREW_PREFIX}}/opt/llvm@19/bin/clang
+          -DCMAKE_CXX_COMPILER=${{env.BREW_PREFIX}}/opt/llvm@19/bin/clang++
+          -DCMAKE_LINKER=${{env.BREW_PREFIX}}/opt/lld@19/bin/lld
+          -DCMAKE_CXX_FLAGS="-stdlib=libc++ -nostdinc++ -I${{env.BREW_PREFIX}}/opt/llvm@19/include/c++/v1"
+          -DCMAKE_EXE_LINKER_FLAGS="-L${{env.BREW_PREFIX}}/opt/llvm@19/lib/c++ -L${{env.BREW_PREFIX}}/opt/llvm@19/lib/unwind -lunwind -Wl,-rpath,${{env.BREW_PREFIX}}/opt/llvm@19/lib/c++"
           -DROAR_BUILD_TESTS=on
           -S ${{github.workspace}}
           -B ${{github.workspace}}/build/clang_${{env.BUILD_TYPE}}
           -G"Ninja"
           -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-          -DBREW_PREFIX="$BREW_PREFIX"
+          -DBREW_PREFIX="${{env.BREW_PREFIX}}"
           -DCMAKE_CXX_EXTENSIONS=on
           -DCMAKE_CXX_STANDARD=20
 
       - name: Build
-        run: cmake --build ${{github.workspace}}/build/clang_${{env.BUILD_TYPE}} --config ${{env.BUILD_TYPE}}
+        run: cmake --build ${{github.workspace}}/build/clang_${{env.BUILD_TYPE}} --config ${{env.BUILD_TYPE}}