I am trying to build and use CEGUI (Crazy Eddie's GUI) as a library for Ogre. I am using CMake, but during the configuring step for the dependencies, I got the following error:
Some or all of the gtk libraries were not found. (missing: GTK2_GTK_LIBRARY GTK2_GTK_INCLUDE_DIR GTK2_GDK_INCLUDE_DIR GTK2_GDKCONFIG_INCLUDE_DIR GTK2_GDK_LIBRARY GTK2_GLIB_INCLUDE_DIR GTK2_GLIBCONFIG_INCLUDE_DIR GTK2_GLIB_LIBRARY) CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: Boost_INCLUDE_DIR (ADVANCED) used as include directory in directory C:/Cegui/cegui-0.8.3/cegui/src/RendererModules/Ogre
CEGUI 0.8.3 cegui-deps-0.8.x-src.zip
Make sure that you have GTK2 installed on your machine (as far as I can tell, it is not part of the CEGUI dependency download archive).
Ensure that CMake can find the library and all it needs. From having a look at the official CMake FindGKT2 script (and I couldn't find a custom one for CEGUI, so the official one is most likely used), the following locations are checked:
So if you are on windows, setting the environment variable GTKMM_BASEPATH will probably be the easiest way. Alternatively, you can also directly enter the paths to your GTK2 installation in the advanced CEGUI view.