joakim@verona.se wrote:
> There seems to be a bunch of gtk warnings I cant really do anything about.

You should be able to fix them all.  The attached patch did that for me, on 
Ubuntu 14.10 anyway.  This patch uses the usual GNU Emacs style in the code I 
fixed; similar fixes are needed for the rest of the xwidget code, but one thing 
at a time.)

>    --enable-gtk-deprecation-warnings
>
> seems to be good as well.

That's disabled by default due to its false alarms.  It is helpful to enable it 
occasionally, and you can still build despite the warnings by using 'make 
WERROR_CFLAGS='.  I don't recommend this for ordinary development, though.