[mythtv] OSX: r25515 has duplicate symbols

[Scott D. Davilla]

>r25514 builds fine for me on OSX 10.5.8.  A clean build of r25515
>however, produces this error when linking libmythtv-0.23.0.23.0.dylib:
>
>ld: duplicate symbol _file_open in
>../libmythbluray/libmythbluray-0.23.a(navigation.o) and
>../libmythbluray/libmythbluray-0.23.a(bluray.o)
>
>Anyone else seeing this?  I'll try and track down the source more
>precisely in the meantime.

see patch at http://trac.xbmc.org/ticket/8079