ruby-sdl-dbg 2.1.3-1build2 (armhf binary) in ubuntu wily

 Ruby/SDL is the ruby extension library to use SDL. SDL (Simple
 DirectMedia Layer) is a cross-platform multimedia library designed to
 provide fast access to the graphics framebuffer and audio device.
 .
 This package is provided primarily to provide a backtrace with names
 in a debugger, this makes it somewhat easier to interpret core
 dumps. Most people will not need this package.