Hello, this is my first post, I have been reading here for awhile and finally started to develop using touchlib for a school project.

I am using a Macbook Pro 2.5 Ghz, 2GB, OSX 10.5.2. Using XCode 3.1.

I have typed out the code as necessary for my application, using Opengl as the rendering API, but after the file is done compiling, I get these errors:

Linking /Users/jimbob/TouchScreen/build/Debug/TouchScreen.app/Contents/MacOS/TouchScreen
Undefined symbols:
“touchlib::TouchScreenDevice::destroy()”, referenced from:
_main in main.o
“touchlib::TouchScreenDevice::getTouchScreen()”, referenced from:
_main in main.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

But I am pretty sure the libraries are linked, or else I would have a few more errors than this. Why are getTouchScreen() and destroy() not linking?