MSVC preprocessor errors, MSVC doesn't define WIN32, only affecting versions <1.3.275

[fl2mex]

When using versions above 1.3.275, vulkan_structs.hpp checks for WIN32 define, which MSVC doesn't provide, making certain functions call strncpy instead of strncpy_s, which is used in versions 1.3.275 and below. Only encountered this issue when I upgraded to 1.3.296.

Giving this error:

'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.

An easy/temporary fix is to do this in every place that vulkan.hpp is included, which a bunch of people told me was the best option:

#define _CRT_SECURE_NO_WARNINGS
#include <vulkan/vulkan.hpp>
#undef _CRT_SECURE_NO_WARNINGS

This solution isn't the best though. MSVC provides _WIN32 and _WIN64, but are mutually exclusive when compiling.
One way to fix this is to perform an or operation on the WIN32 preprocessor, before any checks.

[fl2mex]

Forgot to mention, this also happens on 1.4.304