Any simple application deployed with macdeployqt with main window (including the qt mainwindow sample) crashes after it's bundled with QT libraries using the following command:

/usr/local/Trolltech/Qt-4.8.1/bin/macdeployqt <app_name> -no-plugins -verbose=0

It crashes right after main window appears if "/usr/local/Trolltech/Qt-4.8.1" folder (local QT compiled copy) exists.
If I remove this folder - it works fine. Qt is build using -universal switch.
This problem never happened on Qt 4.7.4, and also appears in 4.8.0.

Call stack:

Version: ??? (???)
Code Type: X86 (Native)
Parent Process: launchd [1312]

Date/Time: 2012-04-13 16:47:57.802 +0300
OS Version: Mac OS X 10.6.8 (10K549)
Report Version: 6

Interval Since Last Report: 591575 sec
Crashes Since Last Report: 12
Per-App Interval Since Last Report: 4674 sec
Per-App Crashes Since Last Report: 10
Anonymous UUID: 4A23B1D0-D9A1-48DE-8C78-E989AAD595F0

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 QtGui 0x1539380d -[NSApplication(QApplicationIntegration) qt_filterEvent:] + 29
1 QtGui 0x00177bb3 QMacInputContext::reset() + 45379
2 com.apple.AppKit 0x95047253 -[NSApplication run] + 917
3 QtGui 0x00182e2a QDesktopWidget::resizeEvent(QResizeEvent*) + 12890
4 QtCore 0x00d7bfc1 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 65
5 QtCore 0x00d7c39a QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 314
6 QtCore 0x00d7ea36 QCoreApplication::exec() + 182
7 com.mycompany.myapp 0x0000ec91 main + 225
8 com.mycompany.myapp 0x00008dbd _start + 208
9 com.mycompany.myapp 0x00008cec start + 40