[BioC] Rgraphviz install issues

[Jeff Gentry]

> I have installed, via darwinports, graphviz (v1.16) running in x11 (I  
> dyn092203:~ apb$ sudo R CMD INSTALL /Users/apb/Rgraphviz_1.4.0.tar.gz
> Rgraphviz.c:244: warning: implicit declaration of function `GD_gvc'
> Rgraphviz.c:244: error: invalid lvalue in assignment

> Clearly, something else is missing in my effort..... Any advice would  
> be appreciated.

If you're using that new of a version of Graphviz, you need to use the
devel version of Rgraphviz.