message: install all export.h files
diff: @@ -63,6 +63,9 @@ function(add_ringmesh_library directory)
  EXPORT_MACRO_NAME ${target_name}_api
  EXPORT_FILE_NAME ${PROJECT_BINARY_DIR}/ringmesh/${directory}/export.h
  )
  + install(FILES ${PROJECT_BINARY_DIR}/ringmesh/${directory}/export.h
  + DESTINATION include/ringmesh/${directory}
  + )
  install(TARGETS ${target_name}
  EXPORT ${target_name}
  RUNTIME DESTINATION bin
  