Build for i586

[Alexander Zhirov]

On Thursday, 28 July 2022 at 11:40:09 UTC, kdevel wrote:
> On Thursday, 28 July 2022 at 10:39:06 UTC, Alexander Zhirov 
> wrote:
> [...]
>> I don't understand what I need to do.
>
> You wrote
>
>     At first I thought that I needed to rebuild the GCC 
> compiler for the i586
>     architecture. I downloaded GCC 9.5.0 and started the 
> installation:
>
> Then you wrote that this process failed. In your next post you 
> quoted some code from the shell:
>
> ```
> # /root/usr/program/gcc/9.5.0/install/bin/cc app.o -o app 
> -L/root/usr/program/ldc/1.30/install/lib -lphobos2-ldc -ldrun
> time-ldc -Wl,--gc-sections -lrt -ldl -lpthread -lm -m32 
> -march=geode
> # ./app
> Illegal instruction
> ```
>
> I read this as if you eventually succeeded in compiling your 
> GCC 9.5.0. If you repeat that build but use the switch
>
> ```
> --with-arch-32=pentium3
> ```
>
> in the configure command your generated GCC 9.5.0 will compile 
> 32-Bit code for the pentium3. I mean instead of
>
> ```
> # ../source/configure --prefix=$PWD/../install_i586 
> --enable-shared --enable-threads=posix --enable-__cxa_atexit 
> --enable-clocale=gnu --enable-languages=c,c++,d 
> --target=i586-pc-linux-gnu --disable-multilib 
> --with-multilib-list=m32
> ```
>
> type
>
> ```
> # ../source/configure --prefix=$PWD/../install_i586 
> --enable-shared --enable-threads=posix --enable-__cxa_atexit 
> --enable-clocale=gnu --enable-languages=c,c++,d 
> --target=i586-pc-linux-gnu --disable-multilib 
> --with-multilib-list=m32 --with-arch-32=pentium3
> ```

I have already downloaded the latest GCC sources, nothing 
compiles anyway. Everything falls on the same error.

```sh
checking for suffix of object files... configure: error: in 
`/home/thinstation/source/gcc/12.1.0/build/i586-pc-linux-gnu/libgcc':
configure: error: cannot compute suffix of object files: cannot 
compile
See `config.log' for more details
make[1]: *** [Makefile:16026: configure-target-libgcc] Error 1
make[1]: *** Waiting for unfinished jobs....
```