Re: __has_attribute error compiling PictureFrame

[David Chisnall]

GCC doesn't support __has_attribute.  In one of the headers there should 
be something like this:

#ifndef __has_attribute
#define __has_attribute(x)
#endif

This header is apparently not being included in NSObjCRuntime.h - I 
guess no one has tried building PictureFrame with gcc and a recent 
GNUstep...

David

On 31/07/2019 09:35, mickbert@posteo.net wrote:
> Hello.
> I have just downloaded gap from github [1], and I am trying to compile 
> them on a RHEL 7, with gcc 4.8.5 20150623 (Red Hat 4.8.5-36)
>
> When I arrive to PictureFrame, compiling the source 
> PreferencesController.m, I got the trange error:
>
> In file included from /usr/local/include/Foundation/NSObject.h:30:0,
>                   from /usr/local/include/Foundation/FoundationErrors.h:29,
>                   from /usr/local/include/Foundation/Foundation.h:33,
>                   from /usr/local/include/Cocoa/Cocoa.h:33,
>                   from PreferencesController.h:5,
>                   from PreferencesController.m:6:
> /usr/local/include/Foundation/NSObjCRuntime.h:187:20: error: missing 
> binary operator before token "("
>   #if __has_attribute(objc_designated_initializer)
>
> "Strange" because it looks to be in a deep foundation header, and I have 
> compiled quite a lot of program before, without any issue. Is it 
> possible that header has never been included anywhere?
>
> Any suggestion?
>
> [1] https://github.com/gnustep/gap
> --
> Mick
>
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