export pathes for LLVM

Author: JulienDoerner

.github/workflows/testing_OSX.yml

@@ -18,7 +18,8 @@ jobs:
        uses: actions/checkout@v4 
      - name: Preinstall 
        run: | 
-         brew reinstall python@3.13 llvm@15
+         brew update
+         brew reinstall python@3.14 llvm@15
          brew install hdf5 fftw cfitsio muparser libomp swig 
          pip install numpy==1.26.4 cmake
          pip show numpy # cross-check numpy version for Python_Numpy_INCLUDE_DIR
@@ -40,6 +41,8 @@ jobs:
         export OMP_DIR=$(brew --prefix libomp)
         export PYTHON_DIR=/Library/Frameworks/Python.framework/Versions/$PYTHON_VERSION/
         export Numpy_dir=`pip show numpy | grep Location | awk '{print $2}'`
+        export LDFLAGS="-L/opt/homebrew/opt/llvm@15/lib"
+        export CPPFLAGS="-I/opt/homebrew/opt/llvm@15/include"
 
         # print paths for debugging
         echo "Using LLVM_DIR: $LLVM_DIR"