Re: gnuconfig and runtime 1.9/ARC issue

[David Chisnall]

When you configure GNUstep, Make, make sure that you use the 'ng' 
library combo.  This will use the GNUstep runtime.  I'd also recommend 
using clang 8 with the 2.0 runtime, rather than the 1.9 release, unless 
you have a compelling reason to use an old compiler.

David


On 04/05/2019 06:23, Johannes Brakensiek wrote:
> Hello everyone,
>
> currently I'm learning ObjC and Cocoa and I'm digging into GNUstep for
> cross platform development.
>
> I compiled GNUstep from scratch using a modified version of Patryk
> Laurent's script, which is documented by this repo:
> https://github.com/Letterus/gnustep-build-debian/blob/master/GNUstep-buildon-debian.sh
>
> It's the 1.9 runtime compiled using clang 6.0 on Debian 9 stretch.
>
> Apps work fine so far, but now I wanted to compile one with ARC enabled.
> I added to the makefile:
>
> OBJCFLAGS = -fobjc-arc
>
> But upon make I get this error:
>
> error: -fobjc-arc is not supported on platforms using the legacy runtime
>
> To check the selected platform I checked the output of "gnustep-config
> --objc-flags", which is this:
>
> -MMD -MP -DGNUSTEP -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1
> -DGNU_RUNTIME=1 -DGNUSTEP_BASE_LIBRARY=1 -fno-strict-aliasing
> -fexceptions -fobjc-exceptions -D_NATIVE_OBJC_EXCEPTIONS -pthread -fPIC
> -DDEBUG -fno-omit-frame-pointer -Wall -DGSWARN -DGSDIAGNOSE -Wno-import
> -g -fblocks -fobjc-runtime=gnustep-1.9 -fobjc-runtime=gcc
> -fconstant-string-class=NSConstantString -I.
> -I/home/joey/GNUstep/Library/Headers
> -I/usr/GNUstep/Local/Library/Headers -I/usr/GNUstep/System/Library/Headers
>
> I wonder where this "-fobjc-runtime=gcc" comes from, if it is the cause
> of the issue and how to get rid of it?
>
> Do you have any hints?
>
> Thanks and regards,
> Johannes
>
>
>
>
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