Enable --config=clang only on newer Clang versions

These flags disable Clang extensions that do things such as reject type definitions within offsetof or reject unknown arguments which does not seem to be needed on versions older than Clang 16

Also, fix a syntax error

Fixes #25530

PiperOrigin-RevId: 707555651

Author: nitins17

build/build.py

@@ -475,20 +475,20 @@ async def main():
       wheel_build_command.append(f"--action_env=CLANG_COMPILER_PATH=\"{clang_path}\"")
       wheel_build_command.append(f"--repo_env=CC=\"{clang_path}\"")
       wheel_build_command.append(f"--repo_env=BAZEL_COMPILER=\"{clang_path}\"")
+
+      if clang_major_version >= 16:
+        # Enable clang settings that are needed for the build to work with newer
+        # versions of Clang.
+        wheel_build_command.append("--config=clang")
     else:
       logging.debug("Use Clang: False")
 
-    # Do not apply --config=clang on Mac as these settings do not apply to
-    # Apple Clang.
-    if os_name != "darwin":
-      wheel_build_command.append("--config=clang")
-
     if not args.disable_mkl_dnn:
       logging.debug("Enabling MKL DNN")
       if target_cpu == "aarch64":
-          wheel_build_command.append("--config=mkl_aarch64_threadpool")
+        wheel_build_command.append("--config=mkl_aarch64_threadpool")
       else:
-          wheel_build_command.append("--config=mkl_open_source_only")
+        wheel_build_command.append("--config=mkl_open_source_only")
 
     if args.target_cpu_features == "release":
       if arch in ["x86_64", "AMD64"]:
@@ -501,7 +501,7 @@ async def main():
             if os_name == "windows"
             else "--config=avx_posix"
         )
-    elif wheel_build_command == "native":
+    elif args.target_cpu_features == "native":
       if os_name == "windows":
         logger.warning(
             "--target_cpu_features=native is not supported on Windows;"