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Niels Lohmann
819838839d
test_main added -Wno-deprecated and -Wno-float-equal as PUBLIC compile options for every non-MSVC compiler, so they were applied to every translation unit, library headers included, and silenced the CI warnings meant to check the library's own -Wfloat-equal pragmas. The only code that actually needed the suppression was the vendored doctest.h, which was included as a normal (non-SYSTEM) directory. Include thirdparty/doctest as SYSTEM for test_main, matching what tests/abi/CMakeLists.txt already does, and drop the two suppressions from both targets. Verified locally that unit-comparison, unit-conversions and unit-constructor1 compile clean with -Werror -Weverything and doctest as -isystem, and that CMake still configures with JSON_BuildTests=ON. Part of #5725 Signed-off-by: Niels Lohmann <mail@nlohmann.me>