How to find GTK installed by vcpkg in CMake

Question

I install the GTK packages with:

vcpkg install gtk:x64-windows

I also set the environment variable CMAKE_TOOLCHAIN_FILE to C:\vcpkg\scripts\buildsystems\vcpkg.cmake， but find_package can't find GTK. How do I find GTK in CMake?

Answer 1

Have you made sure to run .\vcpkg integrate install via Powershell-Admin after you have built GTK? Are you building your project with the x64-windows triplet defined (VCPKG_TARGET_TRIPLET)?

^ Once you do that, delete CMakeCache, and/or test regeneration to another folder and try Configuring again.

On the CMake side, check that your CMakeLists has find_package (GTK) somewhere in there as well. You'll probably also have to define GTK_INCLUDE_DIR and link GTK via target_link_libraries on the CMake side.

Answer 2

CMAKE find_package along with vcpkg integration doesn't work as intended, at least with GTK4 libraries. I am able to fix by adding the dependencies manually something like below or probably create a CMAKE macro

include_directories(${PATH TO VCPKG INSTALLED}/gtk-4.0)
include_directories(${PATH TO VCPKG INSTALLED}/gtkmm-4.0) .. include rest of the used dependencies

The above should be able to compile the code, the following libraries should also be linked as below.

target_link_libraries(main "[VCPKG Intallation]/lib/sigc-3.0.lib") and all dependencies gtkmm-4.0.lib, gtk-4.lib .. as per your needs