Gry <grygoriy.fuchedzhy@xxxxxxxxx> writes: > Hi to everybody. It would be convieniant for me to use -b option which > selects cross-compiler, but i can get only: "unrecognized option -b" Interesting. It does seem to be broken. Please feel free to file a bug at http://gcc.gnu.org/bugs.html. The reason nobody has fixed this is that nobody uses -b, and for various reasons it doesn't really work as it should. When you build and install a cross-compiler, it will by default install a binary named TARGET-gcc (e.g., arm-elf-gcc). Use that instead of gcc -b. Ian