I'm looking for a x86-64 linux distribution that can be used to cross compile Raspberry Pi applications. It needs to be able to use all the libraries supporting the rPi, such as wxWidgets and GTK. I can do little test cases with cross compiler tools, but just setting a dpkg foreign architecture of armhf doesn't do everything that's required. Ssetting the package repo's to those used in the target Raspbian environment doesn't appear to allow "apt-get install wxwidgets" or similar operations.
It seems as though an environment like this should be popular since compiling bigger applications is so slow compiling natively.