After https://codereview.qt-project.org/253009, running configure in qtbase started failing with
ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2], QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.
Observed on 2 different machines, MacOS 10.14.3 and 10.13.6 respectively. Both Xcode 10.1.
Attached config.logs , both the failing and the succeeding after reverting above commit.
Tested with no parameters to configure.