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RE: [avr-gcc-list] avr-gcc compilation problem

From: Eric Weddington
Subject: RE: [avr-gcc-list] avr-gcc compilation problem
Date: Mon, 23 Jul 2007 13:30:50 -0600

> -----Original Message-----
> From:
> address@hidden
> [mailto:address@hidden
> org] On Behalf Of Javier Almansa Sobrino
> Sent: Monday, July 23, 2007 8:09 AM
> To: address@hidden
> Subject: Re: [avr-gcc-list] avr-gcc compilation problem
> On Mon, 23 Jul 2007 14:47:04 +0200
> "Gerard Marull Paretas" <address@hidden> wrote:
> > Hello Javier.
> >
> > I think this link can help you:
> >
> > http://gcc.gnu.org/ml/gcc-bugs/2007-06/msg00234.html
> >
> > It seems to have the same problem, gcc/libgcc.mvars is not
> found and he
> > solves that canging a line of a file.
> >
> > Take a look to it and try if it's what you're looking for.
> >
> > Gerard.
> Ok problem solved, thanks. I've modified several Makefiles due to
> there are several AVR families, so there is a Makefile for each AVR
> family, but it worked fine.

As that bug report shows, building GCC in its source directory is
*unsupported*. You can see this in your configure command line like so:

./configure --target=avr --program-prefix=avr- --enable-languages=c

Note that configure is being executed in the same directory as where it is
located, i.e. you are building in the source directory. Don't do this.
Create a separate build directory outside of the source tree and configure
and build in that directory:

../<sourcedir>/configure --target=avr --enable-languages=c --disable-libssp

Note that you should not need to include --program-prefix=avr-.

Please follow the build instructions found in the avr-libc user manual,
which can also be found online.

Eric Weddington

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