The docs talk about a file called input.h that doesn't seem to appear in any of the packages, at least according to:
apt-file search /usr/include/xcb/xinput.h
I need that because I was trying to use the function xcb_input_open_device.
What am I doing wrong?
It seems that XInput Extension is disabled by default because it's not yet stable enough; hence not packaged in Debian.
In the configure script:
--enable-xinput Build XCB XInput Extension (default: "no")