MSVC build with hidapi in-source fails with errors related to WINAPI #766
Description
I am currently trying to build OpenRGB with HIDAPI built into the source (due to the need to ship the connection-callback branch specifically without it accidentally cross-linking to anything else). I added hidapi as a submodle specifically targeting that branch, though the specific error at hand is not related to that, but if I misconfigured the submodule - it could fail the build for you so pls let me know if that's the case.
The full project is located in here: https://gitlab.com/k1-801/OpenRGB/-/tree/hotplug_standalone . The project uses QMake build system, which is not very common, and I am using a MSVC 2019 compiler. I have included the hid.c files for each operating system into the project source list, as well as included the header folder in the includepath. I made no compiler flags changes for hidapi. The screenshot shows the errors I'm getting.
What could be causing this? How should I go about fixing this build.
My best guess currently is that it's WIN32_LEAN_AND_MEAN being defined globally, but I can't remove that define from the global list as it would break far too many parts of the code.