IDE for R C++ package writing ?

Dear all,

I have to develop a (hopefully) small package for R in C++.
I didn't code in C++ for some years, and i'm now searching
for an adequate IDE for this task.

Some of my criterions : not proprietary, not too heavy,
open to linux, not java gasworks, still maintained, etc

After looking on several places
http://en.wikipedia.org/wiki/List_of_C%2B%2B_compilers_and_integrated_devel
opment_environments http://www.freeprogrammingresources.com/cppide.html
+ R docs
I was thinking on code::blocks, and emacs (and perhaps vim)

Emacs seems used by some R developers as an R editor.
So i did think on emacs because it could perhaps be interesting
to have the same editor for R code and C++ code.

However, when looking at the last emacs windows version,
it seems to date from january 2004 ... (dead end ?)
ftp://ftp.gnu.org/pub/gnu/emacs/windows/

I will be grateful for all advices on this tool topic.
Better choosing emacs ? or code::blocks ?
or another idea ?
Does somebody have an idea about the most used IDEs for
R C++ package writing ?

Some of my criterions : not proprietary, not too heavy,
open to linux, not java gasworks, still maintained, etc

Thanks
Vincent