manylinux + install g++-12

Author: bbayles

Diff for: .github/workflows/build.yml

@@ -34,6 +34,9 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - run: make requirements
+    - if: runner.os == 'Linux'
+      run: |
+        sudo apt-get install g++-12
     - name: Set up QEMU  # Needed to build aarch64 wheels
       if: runner.os == 'Linux'
       uses: docker/setup-qemu-action@v3