Oleg has updated the inline package to version 0.3.4 which is now on CRAN. It is includes my patch for both Rcpp support as well as extended header / library options for
PKG_LIBSwhich I had mentioned recently here and here. There is also a brand-new and shiny R-Forge project for it.
A new release of Rcpp will probably follow in due course as we can now depend on this new inline version; Romain has also put nice new code in around exceptions and we may add some more on external pointers. Good times …