50 lines
1.9 KiB
CMake
50 lines
1.9 KiB
CMake
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find_package(PkgConfig QUIET)
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pkg_check_modules(PC_nlohmann_json QUIET nlohmann_json)
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find_path(nlohmann_json_INCLUDE_DIR
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NAMES json.hpp
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PATHS ${PC_nlohmann_json_INCLUDE_DIRS}
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PATH_SUFFIXES nlohmann
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)
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if(nlohmann_json_INCLUDE_DIR)
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file(STRINGS "${nlohmann_json_INCLUDE_DIR}/json.hpp" _nlohmann_json_version_lines
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REGEX "#define[ \t]+NLOHMANN_JSON_VERSION_(MAJOR|MINOR|PATCH)")
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string(REGEX REPLACE ".*NLOHMANN_JSON_VERSION_MAJOR +\([0-9]+\).*" "\\1" _nlohmann_json_version_major "${_nlohmann_json_version_lines}")
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string(REGEX REPLACE ".*NLOHMANN_JSON_VERSION_MINOR +\([0-9]+\).*" "\\1" _nlohmann_json_version_minor "${_nlohmann_json_version_lines}")
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string(REGEX REPLACE ".*NLOHMANN_JSON_VERSION_PATCH +\([0-9]+\).*" "\\1" _nlohmann_json_version_patch "${_nlohmann_json_version_lines}")
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set(nlohmann_json_VERSION "${_nlohmann_json_version_major}.${_nlohmann_json_version_minor}.${_nlohmann_json_version_patch}")
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unset(_nlohmann_json_version_major)
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unset(_nlohmann_json_version_minor)
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unset(_nlohmann_json_version_patch)
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unset(_nlohmann_json_version_lines)
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(nlohmann_json
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FOUND_VAR nlohmann_json_FOUND
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REQUIRED_VARS
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nlohmann_json_INCLUDE_DIR
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nlohmann_json_VERSION
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VERSION_VAR nlohmann_json_VERSION
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)
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if(nlohmann_json_FOUND)
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set(nlohmann_json_INCLUDE_DIRS ${nlohmann_json_INCLUDE_DIR})
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set(nlohmann_json_DEFINITIONS ${PC_nlohmann_json_CFLAGS_OTHER})
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endif()
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if(nlohmann_json_FOUND AND NOT TARGET nlohmann_json::nlohmann_json)
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add_library(nlohmann_json::nlohmann_json UNKNOWN IMPORTED)
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set_target_properties(nlohmann_json::nlohmann_json PROPERTIES
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IMPORTED_LOCATION "${nlohmann_json_LIBRARY}"
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INTERFACE_COMPILE_OPTIONS "${PC_nlohmann_json_CFLAGS_OTHER}"
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INTERFACE_INCLUDE_DIRECTORIES "${nlohmann_json_INCLUDE_DIR}"
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)
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endif()
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mark_as_advanced(
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nlohmann_json_INCLUDE_DIR
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)
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