Fun example: there's a project (Lunatik) that embeds Lua inside the Linux kernel, where no userspace C APIs are available. You'd expect that would require exten

Fun example: there's a project (Lunatik) that embeds Lua inside the Linux kernel, where no userspace C APIs are available. You'd expect that would require extensive patching but they mostly just had to tweak the makefile and a configuration header file.