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Subject: Re: powerpc allnoconfig
From: Peter Bergner <bergner@vnet.ibm.com>
To: Andrew Morton <akpm@linux-foundation.org>
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Date: Tue, 03 Mar 2009 13:05:31 -0600
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Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Michael Neuling <mikey@neuling.org>, linuxppc-dev@ozlabs.org
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On Tue, 2009-03-03 at 08:56 -0800, Andrew Morton wrote:
> On Tue, 3 Mar 2009 11:14:04 +0100 (CET) Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> 
> > > > let us know if that works :-)
> > > 
> > > didn't.  Oh well.
> > 
> > Does allnoconfig work if you force the compiler to be 32-bit, like
> > 
> >     make CC="powerpc64-unknown-linux-gnu-gcc -m32"
> 
> Nope:
> 
> scripts/mod/empty.c:1: error: -m64 requires a PowerPC64 cpu

To build a biarch compiler that defaults to 32-bit, try adding the
option --with-cpu=default32 to your GCC configure options.  You also
shouldn't need --enable-targets=all.  We haven't used that option
for ages when building powerpc64-linux enabled GCCs.

Peter