Bug#672947: fcmatch.c:548: IA__FcFontMatch: Assertion `result != ((void *)0)' failed.

[Reinhard Tartler]

On Wed, May 16, 2012 at 1:07 PM, Fabian Greffrath <fabian at greffrath.com> wrote:
> Am Montag, den 14.05.2012, 23:23 +0200 schrieb Alex Wilk:
>> mplayer: fcmatch.c:548: IA__FcFontMatch: Assertion `result != ((void *)0)' failed.
>
> In line 1163 in file sub/font_load_ft.c of the mplayer2 source code the
> following code is called:
>
>        fc_pattern = FcFontMatch(0, fc_pattern, 0);
>
> The third argument passed to FcFontMatch() is the *result pointer, which
> is 0 in this case. Newer versions of fontconfig seem to include an
> assertion that this may never be 0, so it fails. Simply passing
> "&result" instead of 0 (as in line 1153) should solve the problem here.
>
> I think the same applies to #672706 reported against mplayer.

Excellent catch. For the reference, the code in question can be
inspected in the upstream gitweb here:
http://cgit.freedesktop.org/fontconfig/tree/src/fcmatch.c?id=2.9.0#n548

-- 
regards,
    Reinhard