[Interest] Link error when building Qt on OS X

[Nikos Chantziaras]

The "make" step works fine, but when I do "make install", it aborts:

ld: duplicate symbol qt_mac_cleanUpMacColorSpaces()     in 
/Users/realnc/tmp/qt-everywhere-opensource-src-5.0.0/qtbase/lib/libQt5Widgets.a(qmacstyle_mac.o) 
and 
/Users/realnc/tmp/qt-everywhere-opensource-src-5.0.0/qtbase/plugins/platforms/libqcocoa.a(qcocoahelpers.o)

What could be wrong here?  This is on OS X 10.6.8.