XCode 4.3 build fails

Build failure on compiling "corewlan":

clang++ -headerpad_max_install_names -mmacosx-version-min=10.6 -arch x86_64 -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk -single_module -dynamiclib -o libqcorewlanbearer_debug.dylib .obj/debug-shared/qcorewlanengine.o .obj/debug-shared/main.o .obj/debug-shared/qnetworksession_impl.o .obj/debug-shared/moc_qcorewlanengine.o .obj/debug-shared/moc_qnetworksession_impl.o .obj/debug-shared/moc_qbearerengine_impl.o -F/Users/david/qt/qt5/qtbase/lib -L/Users/david/qt/qt5/qtbase/lib -framework Foundation -framework SystemConfiguration -framework QtNetwork -L/Users/david/qt/qt5/qtbase/lib -F/Users/david/qt/qt5/qtbase/lib -framework QtCore
Undefined symbols for architecture x86_64:
"_kCWPowerDidChangeNotification", referenced from:
-[QNSListener init] in qcorewlanengine.o
"_kCWScanKeyMerge", referenced from:
QScanThread::run() in qcorewlanengine.o
QCoreWlanEngine::connectToId(QString const&) in qcorewlanengine.o
"_kCWScanKeyScanType", referenced from:
QScanThread::run() in qcorewlanengine.o
QCoreWlanEngine::connectToId(QString const&) in qcorewlanengine.o
"_kCWScanKeyRestTime", referenced from:
QScanThread::run() in qcorewlanengine.o
QCoreWlanEngine::connectToId(QString const&) in qcorewlanengine.o
"_kCWAssocKey8021XProfile", referenced from:
QCoreWlanEngine::connectToId(QString const&) in qcorewlanengine.o
"_kCWScanKeySSID", 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
"_kCWAssocKeyPassphrase", 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