升级 Xcode8 后 Qt 出错

错误提示:

Project ERROR: Xcode not set up properly. You may need to confirm the license agreement by running /usr/bin/xcodebuild.

解决办法:

1. 打开 Qt_install_folder/5.7/clang_64/mkspecs/features/mac/default_pre.prf

2. 修改

   isEmpty($$list($$system("/usr/bin/xcrun -find xcrun 2>/dev/null")))

   为

   isEmpty($$list($$system("/usr/bin/xcrun -find xcodebuild 2>/dev/null")))

具体请看 http://stackoverflow.com/questions/33728905/qt-creator-project-error-xcode-not-set-up-properly-you-may-need-to-confirm-t