2025-12-05 15:26:48 +05:00
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#
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# Input variables:
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# - `JSON_INCLUDE_DIR`
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# If input variables are not specified, try to find nlohmann_json config.
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# Input variables could also be provided as environment variables.
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#
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# Output targets:
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# - `nlohmann_json::nlohmann_json`
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UNIFY_ENVVARS_AND_CACHE(JSON_INCLUDE_DIR)
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if(NOT JSON_INCLUDE_DIR)
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find_package(nlohmann_json CONFIG)
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2025-12-12 14:42:44 +05:00
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mark_as_advanced(nlohmann_json)
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2025-12-05 15:26:48 +05:00
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if(nlohmann_json_DIR)
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return()
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endif()
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endif()
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find_path(json_header_path "nlohmann/json.hpp" HINTS "${JSON_INCLUDE_DIR}")
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2025-12-12 14:42:44 +05:00
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mark_as_advanced(json_header_path)
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2025-12-05 15:26:48 +05:00
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if(json_header_path)
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message(STATUS "JSON for Modern C++ header file found in '${json_header_path}'.")
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add_library(nlohmann_json::nlohmann_json INTERFACE IMPORTED)
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target_include_directories(nlohmann_json::nlohmann_json INTERFACE ${json_header_path})
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return()
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endif()
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message(FATAL_ERROR "Unable to find JSON for Modern C++ header file / package, aborting")
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