Build failure: undefined reference to `ass_flush_events'

[Reimar.Doeffinger at gmx.de (Reimar Döffinger)]

On Wed, Jun 02, 2010 at 07:16:19PM +1000, andrew wrote:
> Hi,
> 
> I am having build failure with the current svn MPlayer and the
> following ./configure string:
> 
> ./configure \
>   --prefix=/usr \
>   --mandir=/usr/man \
>   --confdir=/etc/mplayer \
>   --codecsdir=/usr/lib/codecs \
>   --disable-ass-internal
> 
> External libass is 0.9.9. The error is:
> 
> mplayer.o: In function `seek':
> mplayer.c:(.text+0xf4d): undefined reference to `ass_flush_events'
> collect2: ld returned 1 exit status
> make: *** [mplayer] Error 1
> 
> Please let me know if I need to provide more information.

Someone changed it to require the very latest version in order to make
subtitles work right with Matroska (or something like that) and forgot
to update the configure check.
So in short, sorry, your libass is too old.