mxe-build: undefined references

[Torsten]

When I try to make an mxe-cross-build of a recent gui-release version of
octave I get several undefined reference errors. Here some of them:

graphics/.libs/libgui-graphics.a(graphics_libgui_graphics_la-GLCanvas.o): In
function `ZN9QtHandles8GLCanvas11drawZoomBoxERK6QPointS3_':
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:90:
undefined reference to address@hidden'
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:92:
undefined reference to address@hidden'
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:93:
undefined reference to address@hidden'
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:97:
undefined reference to address@hidden'
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:99:
undefined reference to address@hidden'
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:100:
undefined reference to address@hidden'
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:102:
undefined reference to address@hidden'
/home/ttl/mxe/tmp-octave/octave-3.9.0+/libgui/graphics/GLCanvas.cc:103:
undefined reference to address@hidden'

Is it in principle possible to compile the integrated QtHandles within
the mxe environment?

Torsten