Source to source solves the problem where the only way to ship for certain platform is to compile only with the toolchain provided. The Unity3D engine for exam

Source to source solves the problem where the only way to ship for certain platform is to compile only with the toolchain provided. The Unity3D engine for example uses Mono's AOT (C#) to produce a very big assembly file (.S) which later goes through apple's own (or is it gnu's) as (assembler).