Proton.cmakemodule available that can be used. Just select the parts that are needed. See Compiling the examples for Linux, the examples'
CMakeLists.txtfiles and the comments in the
If you get a “dyld: Symbol not found: __NSConcreteGlobalBlock” error when running on iOS 3.X, you can fix this by adding -weak_library /usr/lib/libSystem.B.dylib to the extra linker command line in the project settings. (Not a Proton issue, but here just in case you need it)