Install clang-17.

Author: ysiraichi

.github/workflows/setup/action.yml

@@ -26,6 +26,10 @@ runs:
       run: |
         ls -la
         rm -rvf ${GITHUB_WORKSPACE}/*
+    - name: "Install APT Packages"
+      ansible.builtin.apt:
+        name: "clang-17"
+        update_cache: true
     - name: Setup CUDA environment
       shell: bash
       run: |

infra/ansible/config/env.yaml

@@ -24,8 +24,8 @@ build_env:
     # Set explicitly to 0 as setup.py defaults this flag to true if unset.
     BUILD_CPP_TESTS: "{{ build_cpp_tests }}"
     # Force GCC because clang/bazel has issues.
-    CC: gcc-10
-    CXX: g++-10
+    CC: /usr/lib/llvm-17/clang
+    CXX: /usr/lib/llvm-17/clang
     PYTORCH_BUILD_NUMBER: 1
     TORCH_XLA_VERSION: "{{ package_version }}"
     PYTORCH_BUILD_VERSION: "{{ package_version }}"