Qmake invocations cause crash with XCode >= 8

[dschreij]

Projects that use qmake crash when XCode => 8 is installed, issuing the following message:

+ /Users/daniel/anaconda/conda-bld/qscintilla2-qt5_1478527333650/_b_env_placehold_/bin/qmake qscintilla.pro -spec macx-llvm
Project ERROR: Xcode not set up properly. You may need to confirm the license agreement by running /usr/bin/xcodebuild.
Command failed: /bin/bash -x -e /Users/daniel/anaconda/conda-bld/qscintilla2-qt5_1478527333650/work/QScintilla_gpl-2.9.3/conda_build.sh

After Googling this error message, I found that the cause is that the invocation of xcrun changed to xcodebuild, see this StackOverflow question. I tried looking for the mentioned entry-to-change in anaconda/mkspecs/features/mac/default_pre.prf but it appears Anaconda uses a custom default_pre.prf file which does not contain the specified line: isEmpty($$list($$system("/usr/bin/xcrun -find xcrun 2>/dev/null")))