qt4 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