Build for i586

[kdevel]

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
```