Compiling the code

Get the code (beware of the git submodule):

git clone --recursive https://github.com/ev3dev/grx

Get the build dependencies:

* For now, you have to do this manually:

        head grx/debian/control
        # look for Build-Depends:
        # install the packages listed
        sudo apt-get install <package> <package> ...

* TODO: once we publish a package, you can use the ev3dev.org package repository:

        sudo apt-add-repository --enable-source "deb http://archive.ev3dev.org/debian jessie main"
        sudo apt-key adv --keyserver pgp.mit.edu --recv-keys 2B210565
        sudo apt-get udpate
        sudo apt-get builddep grx

Now create a build directory, preferably outside of the source directory:

    mkdir build
    cd build

Then build it:

    # If the build directory is not a sibling of the source code directory,
    # replace `..` with the actual path to the source code.
    cmake ../grx -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=$(pwd)/install
    make
    make install

Note: Since this library uses plugins, we need to install it locally to be able to actually use it. The commands above install it in the build directory instead of globally.