Re: [gentoo-user] cross-compile attempt

On Sun, Jul 31, 2016 at 07:40:37PM +0100, Mick wrote
> Hi All,
>
> I am dipping my toe into cross-compile territory, in order to build i686
> binaries for a 32bit box, which is too old to do its own emerges.  I am using
> an amd64 box which is significantly faster to do all the heavy lifting and
> started applying this page:
>
> https://wiki.gentoo.org/wiki/Embedded_Handbook/General/Creating_a_cross-compiler

  "True cross-compiling" is a pain.  It will not work for non trivial
stuff, which builds against glib/glibc and other system libraries,
unless you pull in a whole bunch of "compatability libraries" for the
target architecture.  On my "no-multilib" system, it doesn't work.
Sure, distcc "works transparently", but a bunch of builds get sent back
to the target machine to be done.  That defeats the whole point of
distcc, which is to do all the work on the more powerful machine...

  I recommend going with one of 3 "cheats"...

1) A 32-bit chroot in a 64-bit machine

2) A QEMU (or VirtualBox) 32-bit guest on a 64-bit host

3) If you have a spare 64-bit machine, install 32-bit Gentoo on it

  I use option 2) both as my distccd server and to manually build Pale
Moon.  The target in both cases is an ancient 32-bit-only Atom netbook.

-- 
Walter Dnes <waltdnes@××××××××.org>
I don't run "desktop environments"; I run useful applications