Hello, Jean-Christophe> Just a suggestion : I find it surprising that the option "-emit-llvm" is > not mentioned in the options of llvm-gcc --help.This is "common" gcc problem, because "gcc" binary is a driver. You will see the help string, if you run cc1 / cc1plus binary directly. -- With best regards, Anton Korobeynikov. Faculty of Mathematics & Mechanics, Saint Petersburg State University.