Re: [avr-gcc-list] Building latest gcc...

[Blake Leverett]

On Thursday 20 March 2008, Neil Davey wrote:
> Hi List,
> I'm trying to build the latest gcc source. I use the following configure
> line:
>
> ../gcc/configure --target=avr --enable-languages=c
>
> During the make process (fairly early on I'd say) it gives me the
> following complaint:
>
> <snip>
> checking for avr-strip... avr-strip
> checking whether ln -s works... yes
> checking for avr-gcc... /home/ndavey/gcc_avr/gcc_avr_build/./gcc/xgcc
> -B/home/ndavey/gcc_avr/gcc_avr_build/./gcc/ -B/usr/local/avr/bin/
> -B/usr/local/avr/lib/ -isystem /usr/local/avr/include -isystem
> /usr/local/avr/sys-include
> checking for suffix of object files... configure: error: cannot compute
> suffix of object files: cannot compile
> See `config.log' for more details.
> make[1]: *** [configure-target-libgcc] Error 1
> make[1]: Leaving directory `/home/ndavey/gcc_avr/gcc_avr_build'
> make: *** [all] Error 2
>
>
> Anyone got any suggestions? It's probably something simple.. :)
>
> Regards
> Neil Davey

Just some general comments.

Did you compile/install binutils first?

My configure line for GCC is
../configure --prefix=$PREFIX --target=avr --enable-languages=c,c++ \
    --disable-nls --disable-libssp --with-dwarf2

Be sure to follow the instructions on the avr-libc website:
http://www.nongnu.org/avr-libc/user-manual/install_tools.html

And good luck.

Blake