Build fails with 'qmake builds are not supported on this platform anymore' on OSX 10.11.6

[moreaki]

The full error is:

@0x4B6169:/tmp$ brew update; brew doctor
Already up-to-date.
Your system is ready to brew.
@0x4B6169:/tmp$ brew install --HEAD qtox
==> Installing qtox from tox/tox
==> Cloning git://github.com/qTox/qTox
Updating /Users/moreaki/Library/Caches/Homebrew/qtox--git
==> Checking out branch master
==> qmake
Last 15 lines from /Users/moreaki/Library/Logs/Homebrew/qtox/01.qmake:
2017-06-29 23:43:53 +0200

qmake

Info: creating stash file /private/tmp/qtox-20170629-36717-ro6ssp/.qmake.stash
Project MESSAGE:
Project MESSAGE: Warning: This project file is deprecated and should not be used anymore except on FreeBSD.
Project MESSAGE: Use the CMakeLists.txt file instead to open this as a CMake project.
Project MESSAGE:
Project ERROR: qmake builds are not supported on this platform anymore

If reporting this issue please do so at (not Homebrew/brew or Homebrew/core):
https://github.com/Tox/homebrew-tox/issues