Several Qt Libraries linking to libaudio on Ubuntu 64bits

Hello,

Is there any reason for linking with libaudio? On an Ubuntu 32bits system, QtGui, QtOpenGL and others, although I haven't a complete list, don't link to libaudio, but on my 64bits ubuntu system they do. I am developing some tools using Qt, and when I try to compile to 32bits, it also links with libaudio (and I don't use it). This difficults redistributing my app with my users, and adds a dependency that, from my point of view, is not needed.

Should I recompile Qt packages from source?

best regards,

Francesc Vila