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Re: Debug build compile error in 'gobject/gobject.c'




Hi;

On 3 August 2016 at 18:36, John Emmas <johne53@xxxxxxxxxxxxx> wrote:
> Hi there - I just came across a problem after updating libglib to the latest
> git master (my last update was about a fortnight ago).
>
> I'm building with MSVC 8 and when I try to compile 'gobject/gobject.c' the
> Release version compiles fine but compiling in Debug mode gives me an error
> around these lines at the end of function 'void g_object_type_init (void)
> (approximately line 400):-
>
>       GOBJECT_IF_DEBUG (OBJECTS,
>       {
>           debug_objects_ht = g_hash_table_new (g_direct_hash, NULL);
> #ifndef G_HAS_CONSTRUCTORS
>           g_atexit (debug_objects_atexit);
> #endif /* G_HAS_CONSTRUCTORS */
>       });
>
> The error I see is:-
>
>       gobject\gobject.c(403) : error C2121: '#' : invalid character :
> possibly the result of a macro expansion
>
> AFAICT gobject.c itself hasn't changed recently so is it possible that
> GOBJECT_IF_DEBUG has changed somehow?  The Release build compiles okay so I
> guess that seems plausible.  Thanks,

This is likely a MSVC 8 issue. The GOBJECT_IF_DEBUG macro expands the
second argument to a code block, and it seems MSVC 8 has issues when
that includes a conditional pre-processor directive.

GOBJECT_IF_DEBUG hasn't changed since 2014, and the same commit
introduced the use you see failing.

Ciao,
 Emmanuele.

-- 
https://www.bassi.io
[@] ebassi [@gmail.com]
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