On Fri, 2016-10-14 at 07:39 +0300, fedor_qd@xxxxxxx wrote: > > > Do 'make -j 2' to speed it up by running two jobs in parallel (or > > > replace 4 with a higher number depending on how many cores you > > > have). > make -j"n cores" was cause gcc build fail to me some time ago. It's worked fine for me for a number of releases now, since at least GCC 4.9 for sure. But I'm building on GNU/Linux not Windows. > > I can build a cross-compiler on Linux (Binutils and GCC only, not > > sysroot) in a few minutes on my laptop running Fedora 23. I have > > a Core i7 processor with 4 cores and use -j8. > Is some tricks for build on Fedora or apt-get-install will be suffice? Fedora is a separate GNU/Linux distribution, based on the Red Hat package ecosystem (rpm, yum, etc.) You don't use "apt" commands on Fedora; apt commands are used in Debian and Debian-derived distributions (like Ubuntu, etc.)