qt4-mac: Warning about libstdc++ after installation ( r113176 does not work for me )

[george.sklivanitis@…]

I have the qt4-mac port installed on Mavericks. However, I always see the following warning after building ports:

sudo port install gnuradio +all ---> Computing dependencies for gnuradio ---> Cleaning gnuradio ---> Scanning binaries for linking errors: 81.4% Warning: /opt/local/bin/qmake uses /usr/lib/libstdc++.6.dylib as C++ standard library although macports::cxx_stdlib is set to libc++. ---> Scanning binaries for linking errors: 100.0% ---> No broken files found.

I followed the instructions of r113176 but still I have the same problem