[Rcpp-devel] Adding a foreign include file to the RcppExports.cpp file

JJ Allaire jj.allaire at gmail.com
Wed Sep 16 19:47:13 CEST 2015

See "Section 3.4 Types in Generated Code" of the Rcpp Attributes vignette (

On Wed, Sep 16, 2015 at 1:44 PM, John Merrill <john.merrill at gmail.com>

> I'm trying to build an R package which exposes functions which depend on
> Google's re2 library.  In order to do that, I need to depend on
> /usr/local/include/re2.h.
> That's really easy in the main cpp files, since #include<re2.h> works  The
> problem arises when I use compileAttributes() to generate an
> RcppExports.cpp file: the generated file doesn't contain the relevant
> #include line.
> I've search all the mailing lists I could find as well as groveling
> through all the documentation I could think of.  Evidently, I've missed
> something obvious.  How does one do this?
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