Mutex unlock failure: Operation not permitted

[cpghost]

Hello,

after upgrading from 5.4 to 6.0, I keep getting this error message
when recompiling qt33:

/usr/local/ports/x11-toolkits/qt33/work/qt-x11-free-3.3.5/bin/uic -L /usr/local/
ports/x11-toolkits/qt33/work/qt-x11-free-3.3.5/plugins listboxeditor.ui -i listb
oxeditor.h -o listboxeditor.cpp
Mutex unlock failure: Operation not permitted
*** Signal 11

Stop in /usr/local/ports/x11-toolkits/qt33/work/qt-x11-free-3.3.5/tools/designer
/designer.
*** Error code 1

[...]

I've recompiled and reinstalled qmake before making qt33, but uic still
fails exactly here.

Anyone seen this? Any idea how to fix it?

Thanks,
cpghost.

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