[gentoo-user] compiling via distcc

[gentoo-user] compiling via distcc

[Joseph]

I have an old eeepc 1GB ram and would like to install Gentoo on it as Xubuntu and Fedora both failed providing the programs I need.

Since the eeepc is VERY slow, is it possible to setup "distcc" to do complete compiling on a faster machine.  (eeepc is x86, my faster boxes are amd64).

-- 
Joseph

Re: [gentoo-user] compiling via distcc

[Jeff Smelser]

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People do it all the time. You have to set up the amd64's to cross compile.

https://wiki.gentoo.org/wiki/Distcc/Cross-Compiling

On Wed, Feb 11, 2015 at 4:51 PM, Joseph <syscon780@gmail.com> wrote:

> I have an old eeepc 1GB ram and would like to install Gentoo on it as
> Xubuntu and Fedora both failed providing the programs I need.
>
> Since the eeepc is VERY slow, is it possible to setup "distcc" to do
> complete compiling on a faster machine.  (eeepc is x86, my faster boxes are
> amd64).
>
> --
> Joseph
>
>

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[gentoo-user] Re: compiling via distcc

[James]

Jeff Smelser <tradergt <at> gmail.com> writes:


> People do it all the time. You have to set up the amd64's to cross compile.
> 
> https://wiki.gentoo.org/wiki/Distcc/Cross-Compiling


Here are a few additional links for your perusal:

http://wiki.gentoo.org/wiki/Distcc

https://wiki.gentoo.org/wiki/Talk:Distcc/Cross-Compiling

https://www.gentoo.org/proj/en/base/embedded/handbook/

All neatly available via google {keywords}


hth,
James

Re: [gentoo-user] compiling via distcc

[Andrew Savchenko]

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On Wed, 11 Feb 2015 17:19:22 -0600 Jeff Smelser wrote:
> People do it all the time. You have to set up the amd64's to cross compile.
> 
> https://wiki.gentoo.org/wiki/Distcc/Cross-Compiling

One doesn't need to setup cross-compilation in order to generate
x86 code on amd64 systems: 64-bit amd64 gcc natively supports this,
just be sure to add -m32 to your {C,CXX,F,FC,LD}FLAGS variables.

Care should be taken with -march=native or -mtune=native arguments.
Vanilla distcc doesn't support this. Patch can be taken here[1] or
distcc from my overlay[2] may be used.

Another approach will be to use one powerful box to build all
packages for an older system: either root filesystem may be
exported via NFS to a powerful host or just copy entire disk image
to and fro that host; afterwards just setarch && chroot to that
image / NFS mount and build all packages using modern hardware.
An old but still useful guide is here[3].

[1] https://groups.google.com/forum/#!topic/distcc-patches/eeP-9pTgz7E
[2] git://git.overlays.gentoo.org/dev/bircoph.git sys-devel/distcc
[3] http://www.gentoo-wiki.info/HOWTO_Emerge_on_very_slow_systems

Best regards,
Andrew Savchenko

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Re: [gentoo-user] compiling via distcc

[Peter Humphrey]

On Friday 20 February 2015 06:51:49 Andrew Savchenko wrote:

> Another approach will be to use one powerful box to build all
> packages for an older system: either root filesystem may be
> exported via NFS to a powerful host or just copy entire disk image
> to and fro that host; afterwards just setarch && chroot to that
> image / NFS mount and build all packages using modern hardware.

I've found it simpler to NFS-export just the package directory to the 
more powerful host, not the whole file system. Then SSH to the small box 
and emerge -k. I forget the details now, but I rarely have to fiddle 
about fixing problems since adopting this procedure.

-- 
Rgds
Peter.

Re: [gentoo-user] compiling via distcc

[Peter Humphrey]

On Saturday 21 February 2015 09:48:29 I wrote:

> I forget the details now...

I've remembered one thing: the small machine acts as squid proxy and 
http-replicator host for the others on the LAN, so its /etc directory 
has to differ in several places.

-- 
Rgds
Peter.