I got this working on Ubuntu/other distros in the Debian family but I'm having trouble with Fedora b/c there seems to be no hunspell-dev equivalent package on that distro (just dictionaries for various languages). I need a package that has both headers and libraries in it. If I can't find a solution, I may have to abandon Fedora support. It's a real shame but I don't know if I can make this work on every flavor of Linux out there, especially if there aren't packages I can use as dependencies.

In the meantime, I'm going to start working on the Windows part.

First thing to do is to install the hunspell dev package if you didn't do that already.

If you still can't get the include working after that, check where the hunspell includes can be found and add the path to INCLUDEPATH.

For the linking part, it should look like:

@LIBS += -lhunspell-1.3@

If for any reason the library can't be found:

@LIBS += -L/path/to/where_libhunspell.so_can_be_found@

For the Mac port, you can have hunspell from e.g. macport or brew, you'll have to adapt some path but compiling the application itself should not be problematic. However, the deployment is a bit more complex (but assisted by e.g. macdeployqt)

On windows, again, most of the time it will be a question of path to correct, the deployment is also less easy but not overly complicated, you have a fine "wiki entry":http://qt-project.org/wiki/Deploy_an_Application_on_Windows to help you (if curious about gory details, take a look at Qt's documentation)

Hope it helps