On Thu, 2019-12-05 at 22:39 +0000, Jonathan Wakely wrote: > On Thu, 5 Dec 2019 at 19:03, <skah@xxxxxxxx> wrote: > > Except for GCC, i exactly know how to do. What i need is the whole > > set > > of variables and options to build an (almost) minimalist, (really) > > portable and pure (evidently) generic x64 GCC 7.5.0 with good > > support > > for C and C++ (sparsely "old" and almost recent) with the > > "configure" > > script and make, to run my operating system with GCC from RAM, > > under > > multiple x64 computers. > > And the Linux From Scratch projects provide that, and explain why > they > use particular configure options. > > Instead of asking us to repeat all that information, why don't you > look at the websites that already provide that information? > +1 for the LFS approach. I've used it to build up small chroots for various platforms where I want to bootstrap GCC using qemu user mode emulation. With compression the chroots are < 100M and contain enough bits to bootstrap and regression test the compiler (ie, small enough to be stored on github). Jeff
