In matrix_clip_space.hpp infinitePerspectiveRH and infinitePerspectiveLH are declared. However, when infinitePerspectiveRH_ZO, infinitePerspectiveRH_NO, infinitePerspectiveLH_ZO and infinitePerspectiveLH_NO were added, the declarations were not adjusted accordingly.

To fix this, the new variants need declarations and the old ones need a function definition.