Update cmake-multi-platform.yml

.github/workflows/cmake-multi-platform.yml

@@ -30,10 +30,10 @@ jobs:
           fetch-depth: 0
       - name: Install liclang
         run: |
-              if [ "$RUNNER_OS" == "Linux" ]; then
+              if [ "$RUNNER_OS" = "Linux" ]; then
                 sudo apt-get install clang-13 libclang-13-dev
               else #MacOS
-                brew install llvm
+                brew install llvm@13
               fi
       - uses: julia-actions/setup-julia@latest
         with:
@@ -43,10 +43,15 @@ jobs:
         run: |
           body="${{github.event.pull_request.body}}"
           package="$(echo "$body" | sed -n '1p')"
-          if [[ "$OSTYPE" != "darwin"* ]]; then
+          if [ "$OSTYPE" != "darwin"* ]; then
             rm -f /opt/hostedtoolcache/julia/1.6*/x64/lib/julia/libstdc++.so.6
           fi
-          cmake -DClang_DIR=/usr/lib/llvm-13/lib/cmake/clang -B build -S .
+          if [ "$OSTYPE" = "Linux" ]; then
+            cmake -DClang_DIR=/usr/lib/llvm-13/lib/cmake/clang -B build -S .
+          else #MacOS
+            find / -name ClangConfig.cmake
+            cmake -DClang_DIR=/opt/homebrew/opt/llvm@13/lib/cmake/clang -B build -S .
+          fi
           cmake --build build --verbose -j `nproc`
           PATH="`pwd`/build:$PATH"
           echo "$PATH"