The Small Device C Compiler (SDCC), targeting 8-bit architectures
BASIC Compiler and Interpreter
Linux to DJGPP cross-compiler with pthread library and std::thread.
Oberon family of languages to C translator for ARM, x64 and x86 archit
A minimalistic but complete standard Forth compiler in C
Cygwin cross-compiler for Fedora
Homebrew toolchains for wii, gamecube, 3ds, ds, gba, gp32 and psp
A C Compiler/Editor for Retro 6809 Machines (Colour Computer/Dragon)
Embed C++ in Python source code, dynamically compile and access data
*** Moved to http://github.com/esumii/min-caml ***
Port of Gnat ADA to embedded ARM targets