How do I rebuild a package to include debugging information?

You can do this in just a few steps:

  1. Get the necessary tools and build dependencies:

    sudo apt-get install devscripts fakeroot
    sudo apt-get build-dep <package>
    
  2. Set the build options:

    export DEB_BUILD_OPTIONS="debug nostrip noopt"
    
  3. Build the package:

    fakeroot apt-get source -b <package>
    
  4. Install the package:

    sudo dpkg -i <package>*.deb
    

Alternatively install the pkg-create-dbgsym package.