unable to locate package libgc-dev , when try install haxeflixel linux 64 virtualbox

[lenivaya10001]

i try to install haxe + neko use sh script
link for linux
and install process stopped , if i right understand, after this error
unable to locate package libgc-dev

i try search but can't find libgc-dev

i use virtualbox knoppix installed linux... have worked wine, preinstalled.

i want install haxeflixel + flashdevelop , that try use linux for coding in the future. but now i can't complete even virtualbox linux configure