if (NOT CMAKE_SYSTEM_NAME STREQUAL "Emscripten") message(FATAL_ERROR "The VTK::WebAssembly module requires Emscripten compiler.") endif () vtk_module_add_serdes_wasm_package( MODULE VTK::WebAssembly OUTPUT_NAME vtkWebAssembly EXTRA_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/vtkWasmSceneManager.h ${CMAKE_CURRENT_SOURCE_DIR}/vtkWasmSceneManager.cxx )