Re: Improving GNUstep tooling with Clang

[Johannes Brakensiek]

Hi Frederik,

On 30 Nov 2019, at 16:06, Frederik Seiffert wrote:

> I think ideally these things should be "figured out" by GNUstep make 
> configure, something like:
>
> If Clang version is at least 9 (?) and libobjc2 is detected:

afaik you need clang at least at version 8 to make the 2.0 runtime work 
and any other version (down to 3.x?) to work using the 1.x runtime and 
in order to enable the new ABI supporting ARC, blocks and libdispatch.

> => select ng-gnu-gnu library combo
>
> => select gnustep-2.0 runtime
>
> => enable ARC
> => enable native ObjC exceptions
>
> => add -fuse-ld=gold to linker flags
>
> Would that make sense? 

Hm, maybe anybody having some insights into the internals of GNUstep 
make and these build processes is able to answer this?

Currently I just know it seems necessary to install gnustep make before 
the start of any building (f.e. of the runtime), at least that’s what 
we are doing. As long as this is necessary you cannot do any auto 
detection. But I think it would already be very helpful if the right 
settings and env variables would be chosen and set for you, f.e. by just 
providing a single config parameter.

Johannes