gcc-4.3.2 build fails

John Frankish frankish at dubai.oilfield.slb.com
Sat Nov 1 23:57:08 PDT 2008


At 21:22 01-11-08, you wrote:
>John Frankish wrote:
> > Hi,
> >
> > I'm trying to build on a playstation 3 with yellow dog linux v6
> >
> > Although binutils-2.18 builds OK, gcc-4.3.2 fails after the first
> > bootstrap pass succeeds and then gcc tries to compile a second
> > version of itself. The failure is "gcc compiler cannot build
> > executables" - config.log does not give too many clues...
> >
> > Note that I'm obliged to build using
> > LDFLAGS=$CXXFLAGS=$CFLAGS='-m32'  otherwise gcc-4.2.2 tries to build
> > a 64-bit version of itself and fails looking for gnu/stubs-64.h -
> > glibc and the rest of the ydl system is 32-bit. The host gcc is
> > gcc-4.1.1 (I think).
>
>-m32 only specifies what types of _binaries_ to produce. This means that
>   when you build gcc with -m32, it will produce a 32-bit binary gcc
>(provided  you have 32-bit libs, which you do), but the gcc you build
>will still be configured for a 64-bit machine and when you run it, it
>will attempt to build for that architecture. Because you don't have
>64-bit libs, it will fail.
>
>You can't build 64-bit without first building a 64-bit libc, and you
>can't build 32-bit unless you modify your host settings.
>
>If you want to build LFS as 32-bit, you _might_ get away with hacking
>the output of uname to trick the build system into thinking you're
>running on a 32-bit host, but a saner approach would be to build a
>32-bit only kernel.
>
>If you want to build LFS as 64-bit, there is an approach that currently
>works pioneered by DIY-Linux which involves cross-compiling your first
>glibc and then building natively after that. I have some notes on that
>method and have started adapting it to LFS, but I haven't published
>anything yet.
>
>Otherwise, as was already mentioned, CLFS should be able to help you in
>the right direction, too.
>
>--
>JH
Thanks for the feedback

I'd be interested in the notes to build a 64-bit LFS to play around 
with if you'd like somebody to act as a guinea pig for them

John 




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