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function(link_package NAME)
cmake_parse_arguments(LP "ENCOURAGED" "TARGET" "" ${ARGN})
if(${NAME}_FOUND)
string(TOUPPER "${NAME}" UCNAME)
add_definitions(-DWITH_${UCNAME})
# Some libraries' cmake packages (looking at you, SDL2) leave trailing whitespace in the link commands,
# which (later) cmake considers to be an error. Work around this with by stripping the incoming string.
if(LP_TARGET AND TARGET ${LP_TARGET})
string(STRIP "${LP_TARGET}" LP_TARGET)
target_link_libraries(openttd ${LP_TARGET})
message(STATUS "${NAME} found -- -DWITH_${UCNAME} -- ${LP_TARGET}")
else()
string(STRIP "${${NAME}_LIBRARY}" ${NAME}_LIBRARY)
string(STRIP "${${NAME}_LIBRARIES}" ${NAME}_LIBRARIES)
include_directories(${${NAME}_INCLUDE_DIRS} ${${NAME}_INCLUDE_DIR})
target_link_libraries(openttd ${${NAME}_LIBRARIES} ${${NAME}_LIBRARY})
message(STATUS "${NAME} found -- -DWITH_${UCNAME} -- ${${NAME}_INCLUDE_DIRS} ${${NAME}_INCLUDE_DIR} -- ${${NAME}_LIBRARIES} ${${NAME}_LIBRARY}")
endif()
elseif(LP_ENCOURAGED)
message(WARNING "${NAME} not found; compiling OpenTTD without ${NAME} is strongly disencouraged")
endif()
endfunction()
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