cmake/LinkPackage.cmake

   1 function(link_package NAME)
   2     cmake_parse_arguments(LP "ENCOURAGED" "TARGET" "" ${ARGN})
   3
   4     if(${NAME}_FOUND)
   5         string(TOUPPER "${NAME}" UCNAME)
   6         add_definitions(-DWITH_${UCNAME})
   7         # Some libraries' cmake packages (looking at you, SDL2) leave trailing whitespace in the link commands,
   8         # which (later) cmake considers to be an error. Work around this with by stripping the incoming string.
   9         if(LP_TARGET AND TARGET ${LP_TARGET})
  10             string(STRIP "${LP_TARGET}" LP_TARGET)
  11             target_link_libraries(openttd ${LP_TARGET})
  12             message(STATUS "${NAME} found -- -DWITH_${UCNAME} -- ${LP_TARGET}")
  13         else()
  14             string(STRIP "${${NAME}_LIBRARY}" ${NAME}_LIBRARY)
  15             string(STRIP "${${NAME}_LIBRARIES}" ${NAME}_LIBRARIES)
  16             include_directories(${${NAME}_INCLUDE_DIRS} ${${NAME}_INCLUDE_DIR})
  17             target_link_libraries(openttd ${${NAME}_LIBRARIES} ${${NAME}_LIBRARY})
  18             message(STATUS "${NAME} found -- -DWITH_${UCNAME} -- ${${NAME}_INCLUDE_DIRS} ${${NAME}_INCLUDE_DIR} -- ${${NAME}_LIBRARIES} ${${NAME}_LIBRARY}")
  19         endif()
  20     elseif(LP_ENCOURAGED)
  21         message(WARNING "${NAME} not found; compiling OpenTTD without ${NAME} is strongly disencouraged")
  22     endif()
  23 endfunction()