Herbert J. Skuhra via Postfix-devel:
> Hi Wietse,
>
> On Thu, 15 Feb 2024 15:18:20 +0100, Wietse Venema via Postfix-devel wrote:
> >
> > Herbert J. Skuhra via Postfix-devel:
> > > Hi,
> > >
> > > I am trying to build Postfix-3.9 (20240213) with MongoDB support.
> > > Using clang the build fails:
> > >
> > > dict_mongodb.c:258:6: error: expected expression
> > > 258 | const uint8_t *dataBuffer = NULL;
> > > | ^
> >
> > uint8_t is defined with inttypes.h which is included in dict_mongodb.c.
> >
> > Perhaps the compiler does not like a declaration after case label,
> > in that case try adding { and } around the code in the BSON_TYPE_ARRAY
> > case:
> >
> > case BSON_TYPE_ARRAY:
> > { // ADD THIS LINE
> > const uint8_t *dataBuffer = NULL;
> > /* other existing code */
> > } // ADD THIS LINE
> > default:
>
> Yeah, this change resolves the issue. Thanks a lot!
And there is an even simpler workaround: an empty statement.
case BSON_TYPE_ARRAY:
/* Empty statement for pre-C23 Clang. */ ;
const uint8_t *dataBuffer = NULL;
/* other existing code */
default:
No {} trickery needed.
Can you confirm this?
Wietse
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