Bring Meson build definition more in line with CMake #4452
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Without a version set meson will give no developer warnings, including deprecations. 0.64 was selected as it's quite old, it's the newest version supported by muon (a pure C Meson implementation), and there's nothing complicated going on here.
This simplifies the use of json as a subproject.
This makes a single call to install the entire directory, and doesn't need an update if any new headers are added. It also will simplify bringing the Meson and CMake builds into allignment on how they handle the multi-header vs single-header setups.
Matching the CMake as closely as possible, as Meson doesn't have C++11 feature checks like CMAke does.
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gregmarr
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This uses a meson option (set in `meson_options.txt`) to control whether multi-header or single-header setup is wanted.
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Is meson_options.txt really needed? If so, can it be moved into a subdirectory? |
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Meson options must be specified in a |
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Update the Meson build definition to use Meson best practices, and bring into alignment with the CMake build files.
Particularly, This changes the meson build to only expose a single target, like the CMake does, controlled by an option with the same name. It additionally exposes the
GlobalUDLsandImplicitConversionsoptions, which have behavioral implementations a consumer may wish to control. I have not exposed other options as they don't seem to be important for behavior.The options names do not have the
JSON_prefix, and Meson already has (sub)project option namespaces, so addingJSON_would worse (-Dnlohmann_json:ImplicitConversionsvs-Dnlohmann_json:JSON_ImplicitConversions).Pull request checklist
Read the Contribution Guidelines for detailed information.
include/nlohmanndirectory, runmake amalgamateto create the single-header filessingle_include/nlohmann/json.hppandsingle_include/nlohmann/json_fwd.hpp. The whole process is described here.