[Interest] Compiling 5.11.2 on a Pi 3B

[Jason H]

I'm following along with https://github.com/tranter/raspberry-pi-qt-builds

Which seems to be pretty good, but then I hit a brick wall. I cannot get past:
qwaylandinputdevice.cpp:74:41: fatal error: xkbcommon/xkbcommon-compose.h: No such file or directory 
 #include <xkbcommon/xkbcommon-compose.h>

There doesn't seem to be any jessie packages that provide this. I'm also not up on display servers of the day. Do I even want this wayland stuff? For the time being I'm using X11, but I hope to get this running under egls eventually.

I do have libxkbcommon-x11-dev installed.
$ ls /usr/include/xkbcommon/xkbcommon*
/usr/include/xkbcommon/xkbcommon-compat.h
/usr/include/xkbcommon/xkbcommon.h
/usr/include/xkbcommon/xkbcommon-keysyms.h
/usr/include/xkbcommon/xkbcommon-names.h
/usr/include/xkbcommon/xkbcommon-x11.h

There's just no -compose.h

Any help is appreciated.