project('nlohmann_json',
    'cpp',
    version : '3.11.3',
    license : 'MIT',
    meson_version : '>= 0.64',
    default_options: ['cpp_std=c++11'],
)

if get_option('MultipleHeaders')
    incdir = 'include'
else
    incdir = 'single_include'
endif

cpp_args = [
    '-DJSON_USE_GLOBAL_UDLS=@0@'.format(
        (not get_option('GlobalUDLs')).to_int()),
    '-DJSON_USE_IMPLICIT_CONVERSIONS=@0@'.format(
        (not get_option('ImplicitConversions')).to_int()),
]

nlohmann_json_dep = declare_dependency(
    compile_args: cpp_args,
    include_directories: include_directories(incdir)
)
meson.override_dependency('nlohmann_json', nlohmann_json_dep)

if not meson.is_subproject()
    install_subdir(
        incdir / 'nlohmann',
        install_dir: get_option('includedir'),
        install_tag: 'devel',
    )

    pkgc = import('pkgconfig')
    pkgc.generate(name: 'nlohmann_json',
        version: meson.project_version(),
        description: 'JSON for Modern C++'
    )
endif