DF Installation Help
Create a folder to DigiForce and extract the tar.gz there.
  mkdir /df
  cd /df
  tar xzf /downloads/dfsdkXXX.tar.gz
Then you must setup an environment variable to point to your installation folder and add /df/bin to your PATH.
  set DF=/df
  set PATH=c:\df\bin;%PATH%
  export DF=/df
  export PATH=$DF/bin:$PATH
For Windows you could add these commands in a BAT file, for Linux I suggest you place them in your .bashrc file.

Now run configure and then dfmake.sh to build it.