Re: [Denemo-devel] Error compiling Denemo

[Andreas Schneider]

Am 07.02.2016 um 17:08 schrieb Richard Shann:
> On Sun, 2016-02-07 at 16:50 +0100, Andreas Schneider wrote:
>> When compiling (with GTK3), I get the following error on Debian Wheezy
>> (oldstable):
>>
>> export/print.o: In function `open_viewer':
>> /home/src/denemo/src/export/print.c:417: undefined reference to
>> `g_spawn_check_exit_status'
>> printview/printview.o: In function `printview_finished':
>> /home/src/denemo/src/printview/printview.c:501: undefined reference to
>> `g_spawn_check_exit_status'
> 
> https://developer.gnome.org/glib/stable/glib-Spawning-Processes.html#g-spawn-check-exit-status
> 
> says this has been there since 2.34 (presumably that means glib 2.34)
> so I guess you must have earlier.
> The check is not important, it's just diagnostic for those watching the
> terminal. The whole block:
> 
>  {
>     GError* err = NULL;
>     if(!g_spawn_check_exit_status (status, &err))
>         g_warning ("Lilypond did not end successfully: %s",
> err->message);
>   }               
> 
> 
> could be deleted...

I see. Wheezy ships with glib version 2.33.12. So one could introduce a
preprocessor conditional checking the version. If I understand the doc
on https://developer.gnome.org/glib/stable/glib-Version-Information.html
correctly, one can write

#if GLIB_CHECK_VERSION(2,34,0)
 ...
#endif

in printview/printview.c, line 499 and export/print.c, line 415. For me,
this solves the problem.

Andreas