Comment # 4 on bug 1193139 from Tom de Vries

(In reply to Borislav Petkov from comment #3)
> $ gcc -Wall -o mpx-out-of-bounds -mmpx -fcheck-pointer-bounds
> mpx-out-of-bounds.c
> gcc: warning: switch ���������-mmpx��������� is no longer supported
> gcc: warning: switch ���������-fcheck-pointer-bounds��������� is no longer supported
> 
> That's gcc 10.
> 
> And now that I think about it, I think we did kill MPX altogether:
> 
> https://lore.kernel.org/lkml/tip-
> eb012ef3b4e331ae479dd7cd9378041d9b7f851c@git.kernel.org/
> 
> so why do you even bother with it?

According to https://en.wikipedia.org/wiki/Intel_MPX , support was removed in:
- glibc 2.35.
- gcc 9.1
- kernel 5.6

On Leap 15.3 we have:
- glibc 2.31
- gcc 7.5.0
- kernel 5.3.18

So there's nothing to suggest that mpx is not supported on openSUSE Leap 15.3.

I bother because there are gdb test-cases failing.

I don't care one way or the other, but either we support it or we don't support
it, and all info above indicates we do support it.

If we don't support it, all appearance of supporting it should be removed.