// Hackish wrapper around the ClipperLib library to compile the Clipper library with the Z support. #ifndef clipper_z_hpp #ifdef clipper_hpp #error "You should include the clipper_z.hpp first" #endif #define clipper_z_hpp // Enable the Z coordinate support. #define use_xyz #include "clipper.hpp" #undef clipper_hpp #undef use_xyz #endif clipper_z_hpp