Documenting common C/C++ options

[Richard Earnshaw (lists)]

On 10/10/2023 10:47, Florian Weimer via Gcc wrote:
> Currently, -fsigned-char and -funsigned-char are only documented as C
> language options, although they work for C++ as well (and Objective-C
> and Objective-C++, I assume, but I have not tested this).  There does
> not seem to be a place for this kind of options in the manual.
> 
> The options -fshort-enums and -fshort-wchar are documented under
> code-generation options, but this seems to be a bit of a stretch because
> (at least for -fshort-wchar), these too seem to be more about front-end
> behavior.
> 
> What would be a good way to address this?
> 
> Thanks,
> Florian
> 


All of these are ABI; so where ever it goes, it should be documented that changing them will potentially cause issues with any pre-compiled object files having different settings.

R.