On Wednesday 15 March 2006 12:48, Michael Sullivan <[EMAIL PROTECTED]> wrote about '[gentoo-user] OT - I've built my cross-compilation environment; now what?': > I've succeeded in building a cross-compilation environment for an i586 > on an i686 via crossdev, but I'm unsure how to use it. Can anyone help > me? There are no docs for crossdev in /usr/share/doc, no man pages for > it that I can find, and no info pages. I looked at the log files
Good luck finding solid cross-compilation documentation for /any/ environment. That's black magic only practiced by high-geeks. ;) Even they avoid it when possible because of the high toll on the practitioners sanity. ;) Most of us only use the cross-compilation toolchain for such geek-bishop activities as distcc. > crossdev created when I ran it and I see things like this: > >>> emerge (1 of 1) cross-i586-gnu-linux/gcc-3.4.5-r1 to / > > But when I try to emerge things myself for the environment, emerge > doesn't know what I'm talking about: > > camille ~ # emerge cross-i586-gnu-linux/mysql > Calculating dependencies > emerge: there are no ebuilds to satisfy "cross-i586-gnu-linux/mysql". It's not quite that easy. You may need to change your make.conf, make.profile, and /etc/portage to correct values for the TARGET architecture (emerge will still use them and a -march=i686 will ruin the packages you build, even if you use i586-pc-linux-gnu-gcc to build them), then make sure and run emerge with the ROOT in your environment set to where you want the alternate installation rooted. Check out http://dev.gentoo.org/~vapier/CROSS-COMPILE-HOWTO . Specifically the very bottom (Step 9) where he talks about installing stuff. WARNING: I've heard some ebuilds don't respect ROOT and/or that ROOT is ignored if you try and specify it in make.conf. NB: The cross-* categories are only for the toolchain. Other packages don't use their category for cross-compiling. -- "If there's one thing we've established over the years, it's that the vast majority of our users don't have the slightest clue what's best for them in terms of package stability." -- Gentoo Developer Ciaran McCreesh -- gentoo-user@gentoo.org mailing list
