Squashed 'thirdpart/' content from commit 67bc39e

git-subtree-dir: thirdpart
git-subtree-split: 67bc39eb9696457c06df5dd735499f9bb999f988
Merge commit '5424ddaaf44d87e59f6c06c3e219b963de5024bc' as 'thirdpart'
add a test file1