The foursquareS project that I am trying to work on made a switch to the QT Mobility libraries to take advtange of some of the mobile functionalities ( such as location, maps etc ).
Now the library is great and works well. But installing it can be a little tricky as I discovered this past weekend . Even after moving the pre-built binaries into the proper location i was getting build errors along the lines of "WARNING: Can't find following headers in System Include Path
Here are the steps I took to install the libraries properly within my SDK ( Symbian SDK for FP 1 ) and get a build on QT Creator :-
Once you download the zip or tar file, unzip it at the same level and location as the symbian sdk. In my case the sdk was installed at C:\Symbian\9.2 . I unzipped the folder at C:\qt_mobility .
This step was key, because when you run the configure.bat and make the build files it looks in those relative locations for the sdk etc.
At this point if make is in your path, it will copy the files into the appropriate locations and you can check your set up by building the unit tests . You can then follow the steps in the install.txt to move the pre-built libraries .
Hopefully this helps out others running into the same problems I was having .