Library Download ((link)): Xc.h

This package provides the development files for the X11 library, including header files like X11/Xlib.h , which might be what you're looking for or lead you to the correct path.

To get the library, you actually need to download and install the MPLAB XC Compiler Microchip Technology xc.h library download

is integrated into the compiler, you obtain it by downloading the appropriate compiler version for your architecture: This package provides the development files for the

Or, on older CentOS/RHEL versions that still use yum: including header files like X11/Xlib.h

If your IDE cannot find xc.h , ensure the compiler is correctly selected in the project properties under XC8/XC16/XC32 Global Options .