many thanks for this topic, it helped me a lot compiling mkvtoolnix on my DS213 ( since there is still no toolchain with GCC4.6 available for Marvell 88F628x ...)
It worked for mkvtoolnix 5.0.1 but I got error during my test with V5.9 and 6.3 :
so if you want to compile latest mkvtoolnix...