QGLE: not using the right compiler

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-10.7_x86_64-builder/builds/25935/steps/install-port/logs/stdio

QGLE isn't UsingTheRightCompiler because:

DEBUG: Using compiler 'Xcode Clang'

CC='/usr/bin/clang'

CXX='/usr/bin/clang++'

but then:

make[2]: /opt/local/bin/clang++-mp-9.0: No such file or directory

[ryandesign (Ryan Carsten Schmidt)]

This will be fixed once QGLE is updated to 4.3.x which now builds using CMake instead of QMake. I'm working with upstream to resolve a variety of problems before we can update to that series.