I am trying to compile thunar 1.8.4.
It is giving me this error.
configure: error: X Window system libraries and header files are required
Ubuntu Mate 18.04
The library for development is not installed. Try
apt search xorg-dev #may be -develop
apt install xorg-dev
You may need more -dev packages for anything else thunar depends on. One of the drawbacks of a binary distribution.