On 26 May 2016 at 07:32, <fedor_qd@xxxxxxx> wrote: > Is it possible to build gnu toolchain(gcc, binutils and gdb) itself as x64 executables? If possible: Yes, of course. > 1. Which OS sypports? It's the default for 64-bit GNU/Linux. I think 64-bit Solaris builds 32-bit executables by default. > 2. Is crosscompilers supported? Yes, of course. > 3. Benefits from that?