When trying to run examples for the library TouchScreenMenu, I get the following error:
TouchScreenMenuTest.ino:28:21: fatal error: cstddef.h: No such file or directory compilation terminated.
I cannot locate this file in any of the required libraries. I tried searching for it and have seen the include for it in other Arduino sketches but can't find what library it is actually supposed to be a part of. Can anyone identify this file and what library it comes from?