How to properly import and use this?

[bluewave41]

Forgive me, I'm a total Mac and C++ noob but it's not at all clear how to use this.

I've followed the build steps for CMake.

# precondition: create a <build dir> somewhere on the filesystem (preferably outside of the HIDAPI source)
# this is the place where all intermediate/build files are going to be located
cd <build dir>
# configure the build
cmake <HIDAPI source dir>
# build it!
cmake --build .
# install library; by default installs into /usr/local/
cmake --build . --target install
# NOTE: you need to run install command as root, to be able to install into /usr/local/

I created my library in XCode and added

#include <hidapi.h>

Only to be met with

'hidapi.h' file not found

The file exists in my usr/local/include/hidapi so I don't understand what it's complaining about. Do I need to manually add a reference to this or something? How do I even start here?

[Youw]

Try checking: https://github.com/libusb/hidapi/blob/master/BUILD.cmake.md#using-hidapi-in-a-cmake-project