[gn build] (manually) merge 24ab9b537e61b3 yet more, to fix redef warnings

1 files changed, 1 insertions, 0 deletions

diff --git a/llvm/utils/gn/secondary/llvm/include/llvm/Support/write_extension_def.py b/llvm/utils/gn/secondary/llvm/include/llvm/Support/write_extension_def.py
index 768e57db664..9cd1dd0f2cc 100755
--- a/llvm/utils/gn/secondary/llvm/include/llvm/Support/write_extension_def.py
+++ b/llvm/utils/gn/secondary/llvm/include/llvm/Support/write_extension_def.py
@@ -13,6 +13,7 @@ def main():
     args = parser.parse_args()
 
     output = ''.join(['HANDLE_EXTENSION(%s)\n' % ext for ext in args.exts])
+    output += '#undef HANDLE_EXTENSION\n'
 
     if not os.path.exists(args.output) or open(args.output).read() != output:
         open(args.output, 'w').write(output)