qt4-mac: trouble with libqcorewlanbearer.dylib (OS X 10.7)

[m.haller@…]

following error occurs while compiling qt4

[...]
/Developer/usr/bin/llvm-g++-4.2 -headerpad_max_install_names -arch x86_64 -Wl,-syslibroot,/Developer/SDKs/MacOSX10.7.sdk -single_module -dynamiclib -Xarch_x86_64 -mmacosx-version-min=10.7 -Xarch_x86_64 -mmacosx-version-min=10.7 -o libqcorewlanbearer.dylib .obj/release-shared/main.o .obj/release-shared/qcorewlanengine.o .obj/release-shared/qnetworksession_impl.o .obj/release-shared/moc_qcorewlanengine.o .obj/release-shared/moc_qnetworksession_impl.o .obj/release-shared/moc_qbearerengine_impl.o    -framework Foundation -framework SystemConfiguration -L/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_aqua_qt4-mac/qt4-mac/work/qt-everywhere-opensource-src-4.7.3/lib -lQtNetwork -lQtCore  
Undefined symbols for architecture x86_64:
  "_kCWPowerDidChangeNotification", referenced from:
      -[QNSListener init] in qcorewlanengine.o
  "_kCWAssocKey8021XProfile", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
  "_kCWScanKeySSID", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
  "_kCWScanKeyRestTime", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
      QScanThread::run()      in qcorewlanengine.o
  "_kCWScanKeyScanType", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
      QScanThread::run()      in qcorewlanengine.o
  "_kCWScanKeyMerge", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
      QScanThread::run()      in qcorewlanengine.o
  "_kCWAssocKeyPassphrase", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
  "_SecKeychainSearchCreateFromAttributes", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
  "_SecKeychainSearchCopyNext", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
  "_SecKeychainItemCopyContent", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
  "_SecKeychainItemFreeContent", referenced from:
      QCoreWlanEngine::connectToId(QString const&)  in qcorewlanengine.o
  "_OBJC_CLASS_$_CWInterface", referenced from:
      objc-class-ref in qcorewlanengine.o
  "_OBJC_CLASS_$_CW8021XProfile", referenced from:
      objc-class-ref in qcorewlanengine.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make[4]: *** [../../../../plugins/bearer/libqcorewlanbearer.dylib] Error 1
make[3]: *** [release-all] Error 2
make[2]: *** [sub-corewlan-all] Error 2
make[1]: *** [sub-bearer-all] Error 2
make: *** [sub-plugins-all-ordered] Error 2

[ryandesign (Ryan Carsten Schmidt)]

Use WikiFormatting please. Remember to fill in the correct port name (qt4-mac not qt4), Cc that port's maintainer, and also please attach the entire main.log.