I've been using Creator for a little while now and I use it on an Ubuntu linux machine. I downloaded the binary rather than build the source and I installed it with the 'sudo' command, and it installed it under /opt/ directory.

I would now like to incorporate some 'qwt' widgets into my projects and as such I'd like to include them as widgets in Creator. Handily they are provided as packages through ubuntu repositories, however I think they are intended for use with the versions of qt4 in the ubuntu repositories, not the downloaded binary I have.

Does anybody know how I can point creator to the correct location to find these plugins ?