A simple GUI for pcb2gcode. The minimum required Qt's version is 5.0.2. After building it, download and install pcb2gcode from http://sourceforge.net/projects/pcb2gcode/ (use the git version)

sudo apt-get install build-essential git qt5-default
git clone https://github.com/pcb2gcode/pcb2gcodeGUI.git
cd pcb2gcodeGUI/
qmake
make
sudo make install

Now just run the built executable with

pcb2gcodeGUI

You can also specify a different installation path with

qmake PREFIX=<prefix path>

pcb2gcodeGUI will be installed in PREFIX/bin

You need wheezy-backports: add this line to /etc/apt/sources.list

deb http://ftp.debian.org/debian/ wheezy-backports main

and do an apt-update

sudo apt-get update

then follow the instructions for Debian Jessie

The easiest way to build pcb2gcodeGUI on windows is by downloading the Qt SDK from here http://www.qt.io/download-open-source/ and building it within Qt Creator. After that, download a pcb2gcode Windows build and put it in the same folder of the pcb2gcodeGUI binary