Troubleshooting: was CC set?

.github/workflows/run_tests.yml

@@ -32,6 +32,8 @@ jobs:
         run: |
           brew install llvm@14
           echo "CC=gcc-14" >> $GITHUB_ENV
+      - name: check if CC was set:
+        run: echo "Value of CC: ${CC}"
       - name: Update pip and install dependencies
         shell: bash -l {0}
         run: |