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