Observed when trying out the new port via vcpkg, see microsoft/vcpkg#30621. Relevant details repeated below:

CMake config files are broken

1. Naming inconsistent
   
2. Main config file not including target file, i.e., missing include(${CMAKE_CURRENT_LIST_DIR}/LibiglConfigTargets.cmake).
   • It means the include folder of igl cannot be found on a simple test case, because it cannot find the target igl::igl_core

Modules are not installed

Upstream repository does not install the targets containing the options, only the core target, see https://github.com/search?q=repo%3Alibigl%2Flibigl%20igl_install&type=code. Moreover, installing does not include copyleft targets

• Windows
• macOS
• Linux