|  | @@ -93,6 +93,7 @@ git submodule update --init
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				|  |  |  # Store intermediate build files of ObjC tests into /tmpfs
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				|  |  |  mkdir /tmpfs/Build-ios-binary-size
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				|  |  |  ln -s /tmpfs/Build-ios-binary-size src/objective-c/examples/Sample/Build
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				|  |  | -mkdir /tmpfs/DerivedData
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				|  |  | +mkdir -p /tmpfs/DerivedData
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				|  |  |  rm -rf ~/Library/Developer/Xcode/DerivedData
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				|  |  | +mkdir -p ~/Library/Developer/Xcode
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				|  |  |  ln -s /tmpfs/DerivedData ~/Library/Developer/Xcode/DerivedData
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