What you'll need to compile/use the package:

Using the package:
 - an X server, libcairo2, libx11, the 'discover' binary

Compiling binaries:
- gcc libcairo2-dev libx11-dev

Patching packages:
  - Debian-like distros:
    - libx11: "apt-get build-dep libx11-6", fakeroot, dpkg

Packaging stuff:
  - Debian-like distros:
    - dpkg fakeroot

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Debian/Ubuntu users should do this:

For libx11-6:
# apt-get build-dep libx11-6

For compiling:
# apt-get install git-core build-essential pkg-config libcairo2-dev fakeroot