Re: [gentoo-user] QEMU/distcc combination question64-

On Sat, Jan 02, 2016 at 02:56:58PM +0300, Andrew Savchenko wrote

> For 32-bit distcc on 64-bit host there is no need to chroot or
> create VM (hey, they're hellishly slow!). Just add -m32 to your
> *FLAGS to force 32-bit arch. (In some rare cases ebuild ignores
> {C,CXX,F,FC}FLAGS, while this is a bug and should be fixed, this
> can be worked around on distcc server by forcing -m32 for each
> gcc call.

  -m32 in a 64-environment works for "Hello World".  More complex code
that requires arch-specific headers and libs will have problems.  It
"works" with Gentoo distcc.  Rather than erroring out, it sends the work
back to my Atom netbook, and says "Sorry, you have to do this yourself".
This defeats the point of distcc.  Outside of Gentoo distcc, the errors
stop the build.  So yes, I do need a 32-bit environment.

  I ran into this, trying to manually build Pale Moon (a Firefox fork)
for my Atom netbook from a 64-bit environment.  It doesn't work.
Mozilla and its derivatives all use the same weird build scripts.
See...    https://forum.palemoon.org/viewtopic.php?f=37&t=10002

  I eventually re-installed 32-bit Gentoo on my ancient Core2 machine.
Since it only has 3 gigs of RAM, it's not losing anything.  It
successfully built the Atom-specific branch (a bunch of "web-developer"
stuff removed) for my netbook.  My netbook is actually "-march=bonnell"
https://en.wikipedia.org/wiki/Bonnell_%28microarchitecture%29
I selected that instead of the generic "-march=atom".

  By the way, Atom-specific-source Pale Moon builds are really snappy on
a newer machine when built with "-march=native".  On the other hand, the
Firefox developers have utterly gone off the deep end.  The
Atrocious^H^H^H^H^H^H^H^H^H Australis GUI was the final straw that drove
me away.

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