so I finally got everything built and done properly for KTorrent 3.1.2, yet I cannot actually launch the program because of the following error:

ktorrent(10830)/kdecore (KLibLoader) kde4Factory: The library "/opt/kde4/lib/kde4/ktupnpplugin.so" does not offer a qt_plugin_instance function.
QWidget: Must construct a QApplication before a QPaintDevice
KCrash: crashing... crashRecursionCounter = 2

Is this a problem within the ktupnpplugin.so or with my Qt4 installation? I should add that all other KDE4 apps work properly with Qt4 on OS X (like ktupnptest). I should also add that there is a large list of terminal lines prior to this one, but it was on this one that the program ended with KCrash in case it was something else..

tokie wrote:so I finally got everything built and done properly for KTorrent 3.1.2, yet I cannot actually launch the program because of the following error:

ktorrent(10830)/kdecore (KLibLoader) kde4Factory: The library "/opt/kde4/lib/kde4/ktupnpplugin.so" does not offer a qt_plugin_instance function.

This can be ignored, you should see that with all the other plugins too.

QWidget: Must construct a QApplication before a QPaintDevice
KCrash: crashing... crashRecursionCounter = 2

That seems to be problem, and it doesn't add up, the moment you are loading plugins a QApplication instance has already been created.

Have you got a full backtrace of the crash ?

Sure, here it is:

<unknown program name>(58747)/ mac_set_dbus_address: set session bus address to "unix:path=/tmp/launch-o7Y6Oe/session"
tokie:macos tokie$ ktorrent(58748)/kdeui (KIconLoader): Error: standard icon theme "oxygen" not found!

QPainter::begin: Cannot paint on a null pixmap
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/opt/kde4/lib/kde4/libexec/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/opt/kde4/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/local/Trolltech/Qt-4.4.1/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/local/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/opt/local/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/opt/local/sbin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/sw/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/sw/lib/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/opt/local/lib/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/lib/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/sw/include/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/opt/local/include/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/local/lib/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/local/include/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/include/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/sw/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/sw/sbin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/sbin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/sbin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/local/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/X11/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (kdelibs) getBundle: getBundle( "/usr/X11R6/bin/drkonqi" , false ) called
ktorrent(58748)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::KCoreConfigSkeleton: Creating KCoreConfigSkeleton ( 0x13b75990 )
ktorrent(58748)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::readConfig: KCoreConfigSkeleton::readConfig()
ktorrent(58748)/kdeui (K*Gesture*) KAction::setGlobalShortcut: Attempt to set global shortcut for action without objectName(). Read the setGlobalShortcut() documentation.
ktorrent(58748)/kdecore (KSycoca) KSycocaPrivate::openDatabase: Trying to open ksycoca from "/Users/tokie/Library/Preferences/KDE/cache-tokie.local/ksycoca4"
Object::connect: No such signal KPluginSelector::Private::changed(bool)
Object::connect: No such signal KPluginSelector::Private::configCommitted(QByteArray)
ktorrent(58748)/kdecore (KConfigDialogManager) KConfigDialogManager::parseChildren: Widget ' "m_recommended_settings" ' ( QPushButton ) remains unmanaged.
ktorrent(58748)/kutils (KPluginSelector) KPluginSelector::addPlugins: cfgGroup = 0x28032cf0
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "BandwidthSchedulerPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "BitFinderPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "InfoWidgetPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "IPFilterPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "LogViewerPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "MediaPlayerPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "ScanFolderPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "ScriptingPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "SearchPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "StatsPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "UPnPPlugin"
ktorrent(58748)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "WebInterfacePlugin"
ktorrent(58748)/kdecore (KLibLoader) kde4Factory: The library "/opt/kde4/lib/kde4/ktupnpplugin.so" does not offer a qt_plugin_instance function.
QWidget: Must construct a QApplication before a QPaintDevice
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = ktorrent path = <unknown> pid = 58748
sock_file=/Users/tokie/.kde/socket-tokie.local/kdeinit4__0
Warning: connect() failed: : No such file or directory
KCrash cannot reach kdeinit, launching directly.
KCrash failed to exec(), errno = 2

Not the console output, a backtrace, you should get a kde crash dialog and you can generate a backtrace with that.

This? Sorry if it isn't, I'm not too sure...

Thread 0 Crashed:
0 QtCore 0x124630b0 QObject::~QObject() + 32
1 libkdecore.5.dylib 0x0e654ce7 KJob::exec() + 135 (kjob.cpp:197)
2 libbtcore.7.dylib 0x0703091d bt::Log::Private::rotateLogs(QString const&) + 1085
3 libbtcore.7.dylib 0x07030e5f bt::Log::Private::setOutputFile(QString const&, bool) + 543
4 libbtcore.7.dylib 0x0702fffa bt::InitLog(QString const&, bool) + 42
5 0x00027dc7 kt::App::newInstance() + 407
6 libkdeui.5.dylib 0x072d72a5 KUniqueApplication::Private::_k_newInstanceNoFork() + 33 (kuniqueapplication.cpp:379)
7 libkdeui.5.dylib 0x072d73fe KUniqueApplication::qt_metacall(QMetaObject::Call, int, void**) + 80 (kuniqueapplication.moc:65)
8 QtCore 0x1245eeb0 QMetaObject::activate(QObject*, int, int, void**) + 528
9 QtCore 0x12468832 QSingleShotTimer::timeout() + 50
10 QtCore 0x124688cc QSingleShotTimer::timerEvent(QTimerEvent*) + 44
11 QtCore 0x1245f888 QObject::event(QEvent*) + 424
12 QtGui 0x125a0e6f QApplicationPrivate::notify_helper(QObject*, QEvent*) + 191
13 QtGui 0x125a790c QApplication::notify(QObject*, QEvent*) + 220
14 libkdeui.5.dylib 0x072d168f KApplication::notify(QObject*, QEvent*) + 113 (kapplication.cpp:311)
15 QtCore 0x1244d811 QCoreApplication::notifyInternal(QObject*, QEvent*) + 145
16 QtGui 0x1260193c QEventDispatcherMacPrivate::activateTimers() + 236
17 QtGui 0x126024a8 QEventDispatcherMac::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 88
18 QtCore 0x1244cdd1 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 65
19 QtCore 0x1244ce9d QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 157
20 QtCore 0x12450e31 QCoreApplication::exec() + 161
21 0x0000fc90 main + 10080
22 0x0000cba6 start + 54

Thread 1:
0 libSystem.B.dylib 0x966c55e2 select$DARWIN_EXTSN + 10
1 libSystem.B.dylib 0x966a66f5 _pthread_start + 321
2 libSystem.B.dylib 0x966a65b2 thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x1250e448 ebx: 0x124630a1 ecx: 0x00000000 edx: 0xbfffee94
edi: 0xbfffee94 esi: 0x00000001 ebp: 0xbfffee58 esp: 0xbfffede0
ss: 0x0000001f efl: 0x00010282 eip: 0x124630b0 cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037
cr2: 0x00000010

Binary Images:
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0x93a92000 - 0x93a92ffd com.apple.Accelerate.vecLib 3.4.2 (vecLib 3.4.2) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib
0x93aa1000 - 0x93da8ff7 com.apple.HIToolbox 1.5.3 (???) <e36f5c553e5a32f64b7eb458dadadc71> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
0x93ea2000 - 0x93ec2ff2 libGL.dylib ??? (???) /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
0x93ec3000 - 0x93ec4ffc libffi.dylib ??? (???) <a3b573eb950ca583290f7b2b4c486d09> /usr/lib/libffi.dylib
0x93ec5000 - 0x93ed5ffc com.apple.LangAnalysis 1.6.4 (1.6.4) <8b7831b5f74a950a56cf2d22a2d436f6> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis
0x93ee6000 - 0x93f20fff com.apple.coreui 1.1 (61) /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI
0x93ff5000 - 0x94020fe7 libauto.dylib ??? (???) <42d8422dc23a18071869fdf7b5d8fab5> /usr/lib/libauto.dylib
0x94021000 - 0x940b4fff com.apple.ink.framework 101.3 (86) <bf3fa8927b4b8baae92381a976fd2079> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework/Versions/A/Ink
0x940b5000 - 0x940b5ff8 com.apple.ApplicationServices 34 (34) <8f910fa65f01d401ad8d04cc933cf887> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
0x940c3000 - 0x94120ffb libstdc++.6.dylib ??? (???) <04b812dcec670daa8b7d2852ab14be60> /usr/lib/libstdc++.6.dylib
0x94129000 - 0x941b4fff com.apple.framework.IOKit 1.5.1 (???) <60cfc4b175c4ef60bb8e9036716a29f4> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x94296000 - 0x942d4ff7 libGLImage.dylib ??? (???) <093b1b698ca93a0380f5fa262459ea28> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
0x942d5000 - 0x942dcff7 libCGATS.A.dylib ??? (???) <fbc59d0e1eccf907396563568d5cd872> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGATS.A.dylib
0x942dd000 - 0x942f5fff com.apple.openscripting 1.2.8 (???) <d85d82af796d1df9bce7b1db8f6c846c> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/OpenScripting.framework/Versions/A/OpenScripting
0x942f6000 - 0x9432dfff com.apple.SystemConfiguration 1.9.2 (1.9.2) <8b26ebf26a009a098484f1ed01ec499c> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
0x94650000 - 0x9466efff libresolv.9.dylib ??? (???) <9602435a6eac87a0d1f41b8ca8541693> /usr/lib/libresolv.9.dylib
0x946db000 - 0x948a9fff com.apple.security 5.0.4 (34102) <f01d6cbd6a0f24f6c13952ed448e77d6> /System/Library/Frameworks/Security.framework/Versions/A/Security
0x9499f000 - 0x94a46feb com.apple.QD 3.11.52 (???) <c72bd7bd2ce12694c3640a731d1ad878> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD
0x94a47000 - 0x94b12fff com.apple.ColorSync 4.5.0 (4.5.0) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSync.framework/Versions/A/ColorSync
0x94b23000 - 0x94b37ff3 com.apple.ImageCapture 4.0 (5.0.0) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture.framework/Versions/A/ImageCapture
0x94b42000 - 0x94dbdfe7 com.apple.Foundation 6.5.5 (677.19) <bfd4ebea1a7739dd6b523f15dca01a37> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x94def000 - 0x94df3fff libmathCommon.A.dylib ??? (???) /usr/lib/system/libmathCommon.A.dylib
0x94e3f000 - 0x94e45fff com.apple.print.framework.Print 218.0.2 (220.1) <8bf7ef71216376d12fcd5ec17e43742c> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Print.framework/Versions/A/Print
0x94e46000 - 0x95256fef libBLAS.dylib ??? (???) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
0x95257000 - 0x952b0ff7 libGLU.dylib ??? (???) /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
0x952c1000 - 0x9531bff7 com.apple.CoreText 2.0.2 (???) <9fde11f84a72e890bbf2aa8b0b13b79a> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreText.framework/Versions/A/CoreText
0x9531c000 - 0x95396ff8 com.apple.print.framework.PrintCore 5.5.3 (245.3) <222dade7b33b99708b8c09d1303f93fc> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/PrintCore
0x95397000 - 0x9547cff3 com.apple.CoreData 100.1 (186) <8e28162ef2288692615b52acc01f8b54> /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
0x95482000 - 0x955a6fe3 com.apple.audio.toolbox.AudioToolbox 1.5.1 (1.5.1) /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
0x955a7000 - 0x955b2fe7 libCSync.A.dylib ??? (???) <3f58eb487099bff0476ec79974d0ad4d> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x957e2000 - 0x95b78fff com.apple.QuartzCore 1.5.3 (1.5.3) <1b65c05f89e81a499302fd63295b242d> /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
0x95de2000 - 0x965dffef com.apple.AppKit 6.5.3 (949.33) <84b236f43802f4c15011513d18efa101> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
0x965e0000 - 0x96673ff3 com.apple.ApplicationServices.ATS 3.3 (???) <064eb6d96417afa38a80b1735c4113aa> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/ATS
0x96674000 - 0x967d4ff3 libSystem.B.dylib ??? (???) <98fc91f31f185411ddc46d3225e9af55> /usr/lib/libSystem.B.dylib
0x967d5000 - 0x967d8fff com.apple.help 1.1 (36) <b507b08e484cb89033e9cf23062d77de> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framework/Versions/A/Help
0x967d9000 - 0x96893fe3 com.apple.CoreServices.OSServices 226.5 (226.5) <7e10d25c615a39fe1ab4d48e24a3b555> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices
0x96894000 - 0x9695bff2 com.apple.vImage 3.0 (3.0) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
0x9695c000 - 0x9695cffd com.apple.vecLib 3.4.2 (vecLib 3.4.2) /System/Library/Frameworks/vecLib.framework/Versions/A/vecLib
0x96a00000 - 0x96a00fff com.apple.Carbon 136 (136) <98a5e3bc0c4fa44bbb09713bb88707fe> /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
0x96a50000 - 0x96a92fef com.apple.NavigationServices 3.5.2 (163) <91844980804067b07a0b6124310d3f31> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/NavigationServices.framework/Versions/A/NavigationServices
0x96a93000 - 0x96a98fff com.apple.CommonPanels 1.2.4 (85) <ea0665f57cd267609466ed8b2b20e893> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CommonPanels.framework/Versions/A/CommonPanels
0x96a99000 - 0x96b18ff5 com.apple.SearchKit 1.2.0 (1.2.0) <277b460da86bc222785159fe77e2e2ed> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit
0x96b6a000 - 0x96b75ff9 com.apple.helpdata 1.0 (14) /System/Library/PrivateFrameworks/HelpData.framework/Versions/A/HelpData
0x96b76000 - 0x96b78fff com.apple.securityhi 3.0 (30817) <2b2854123fed609d1820d2779e2e0963> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.framework/Versions/A/SecurityHI
0x96cda000 - 0x96ce8ffd libz.1.dylib ??? (???) <5ddd8539ae2ebfd8e7cc1c57525385c7> /usr/lib/libz.1.dylib
0x96cef000 - 0x96dcefff libobjc.A.dylib ??? (???) <a53206274b6c2d42691f677863f379ae> /usr/lib/libobjc.A.dylib
0x96e0e000 - 0x96e90ff3 com.apple.CFNetwork 330.4 (330.4) <ce5b085df34a78b7f198aff9db5b52ec> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x96e91000 - 0x96e91ffb com.apple.installserver.framework 1.0 (8) /System/Library/PrivateFrameworks/InstallServer.framework/Versions/A/InstallServer
0x96f00000 - 0x96f28ff7 com.apple.shortcut 1 (1.0) <057783867138902b52bc0941fedb74d1> /System/Library/PrivateFrameworks/Shortcut.framework/Versions/A/Shortcut
0x96f8b000 - 0x96f95feb com.apple.audio.SoundManager 3.9.2 (3.9.2) <0f2ba6e891d3761212cf5a5e6134d683> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CarbonSound.framework/Versions/A/CarbonSound
0x96f9c000 - 0x97028ff7 com.apple.LaunchServices 289.2 (289.2) <3577886e3a6d56ee3949850c4fde76c9> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
0x97029000 - 0x9704dfff libxslt.1.dylib ??? (???) <4933ddc7f6618743197aadc85b33b5ab> /usr/lib/libxslt.1.dylib
0x9704e000 - 0x9712fff7 libxml2.2.dylib ??? (???) <1baef3d4972ee789d8fa6c1fa44da45c> /usr/lib/libxml2.2.dylib
0x97165000 - 0x97169fff libGIF.dylib ??? (???) <d4234e6f5e5f530bdafb969157f1f17b> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x9716a000 - 0x97172fff com.apple.DiskArbitration 2.2.1 (2.2.1) <75b0c8d8940a8a27816961dddcac8e0f> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
0x971c3000 - 0x971ccfff com.apple.speech.recognition.framework 3.7.24 (3.7.24) <d3180f9edbd9a5e6f283d6156aa3c602> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecognition.framework/Versions/A/SpeechRecognition
0x971cd000 - 0x9727fffb libcrypto.0.9.7.dylib ??? (???) <01109b36b445b3e8698ef87f814f7fd4> /usr/lib/libcrypto.0.9.7.dylib
0xba900000 - 0xba916fff libJapaneseConverter.dylib ??? (???) <7b0248c392848338f5d6ed093313eeef> /System/Library/CoreServices/Encodings/libJapaneseConverter.dylib
0xbab00000 - 0xbab21fe2 libKoreanConverter.dylib ??? (???) <51586b8d9ef39123fbe6918f12d8285f> /System/Library/CoreServices/Encodings/libKoreanConverter.dylib
0xfffe8000 - 0xfffebfff libobjc.A.dylib ??? (???) /usr/lib/libobjc.A.dylib
0xffff0000 - 0xffff1780 libSystem.B.dylib ??? (???) /usr/lib/libSystem.B.dylib

It seems that creating KIO::Job's for rotating the logs is not really appreciated by Qt

Lets see what we can do about that.