…ap#1084)
fixes colmap#1065
As discussed there, the example given in https://colmap.github.io/install.html#library does not work if colmap was compiled with cuda support because it doesnt link against the cuda_colmap library, even if the cuda functions are not used.
This PR tries tries to fix the problem by adding colmap_cuda to the COLMAP_LIBRARIES variable so that the end user does not have to worry about it.