qt5 symbols in raspbian jessie.

[peter green <peter.green-3@manchester.ac.uk>]

I meant to bring this up earlier but didn't get arround to it.

In raspbian jessie we have encountered some symbols differences from 
Debian armhf, so-far i've been marking the symbols in question as 
optional but i'm not positive if this is the right thing to do.

You can see our debdiffs at

http://debdiffs.raspbian.org/main/q/qtdeclarative-opensource-src/qtdeclarative-opensource-src_5.3.2-4%2brpi1.debdiff
http://debdiffs.raspbian.org/main/q/qtwebkit-opensource-src/qtwebkit-opensource-src_5.3.2%2bdfsg-3%2brpi1.debdiff

Are these symbols just template insanciations that can be safely marked 
as optional or is there more to it than that?