How to get Rcpp and BH (Boost headers) working with regex_replace for Windows build - r

Question

I'm using the excellent Rcpp project to implement some faster text processing in R, but cannot get the package to build correctly under Windows. (It builds fine under OS X and Linux.) I am using Rcpp, and the BH header packages. I can get the example at http://gallery.rcpp.org/articles/boost-regular-expressions/ and I can get the code below to build on every platform except Windows.
To isolate my problem I removed it from my larger package, and put it into a simple package so that it can be installed using devtools::install_github("kbenoit/boostTest").
The files are:
Makevars.win:
PKG_LIBS = -lboost_regex
src/clean.cpp:
#include <Rcpp.h>
#include <string>
#include <boost/regex.hpp>
// [[Rcpp::depends(BH)]]
const boost::regex re_digits("[[:digit:]]");
const boost::regex re_punct("[[:punct:]]");
const std::string space0("");
std::string removeDigits(const std::string& s) {
return boost::regex_replace(s, re_digits, space0, boost::match_default | boost::format_sed);
}
std::string removePunct(const std::string& s) {
return boost::regex_replace(s, re_punct, space0, boost::match_default | boost::format_sed);
}
// [[Rcpp::export]]
Rcpp::DataFrame cleanCpp(std::vector<std::string> str) {
int n = str.size();
for (int i=0; i<n; i++) {
str[i] = removeDigits(str[i]);
str[i] = removePunct(str[i]);
}
return Rcpp::DataFrame::create (Rcpp::Named("text") = str);
}
and cleanC.R is exported as:
cleanC <- function(x) as.character(cleanCpp(x)[, 1])
(I did this because I am so new to Rcpp that I could not figure out how to return a CharacterVector, but could get the Rcpp::DataFrame return type working by following the boost-regular-expressions example linked above.
In my DESCRIPTION file I have:
LinkingTo: Rcpp,BH
The problem is that when I build the package using devtools::build_win(), it fails, even though it builds fine on Linux and OS X. The output can be seen here:
* installing *source* package 'boostTest' ...
** libs
*** arch - i386
g++ -I"D:/RCompile/recent/R-3.1.3/include" -I"d:/RCompile/CRANpkg/lib/3.1/Rcpp/include" -I"d:/RCompile/CRANpkg/lib/3.1/RcppArmadillo/include" -I"d:/RCompile/CRANpkg/lib/3.1/BH/include" -I"d:/RCompile/r-compiling/local/local320/include" -O3 -Wall -mtune=core2 -c RcppExports.cpp -o RcppExports.o
g++ -I"D:/RCompile/recent/R-3.1.3/include" -I"d:/RCompile/CRANpkg/lib/3.1/Rcpp/include" -I"d:/RCompile/CRANpkg/lib/3.1/RcppArmadillo/include" -I"d:/RCompile/CRANpkg/lib/3.1/BH/include" -I"d:/RCompile/r-compiling/local/local320/include" -O3 -Wall -mtune=core2 -c clean.cpp -o clean.o
g++ -shared -s -static-libgcc -o boostTest.dll tmp.def RcppExports.o clean.o -lboost_regex -Ld:/RCompile/r-compiling/local/local320/lib/i386 -Ld:/RCompile/r-compiling/local/local320/lib -LD:/RCompile/recent/R-3.1.3/bin/i386 -lR
d:/compiler/gcc-4.6.3/bin/../lib/gcc/i686-w64-mingw32/4.6.3/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lboost_regex
collect2: ld returned 1 exit status
no DLL was created
ERROR: compilation failed for package 'boostTest'
* removing 'd:/RCompile/CRANguest/R-release/lib/boostTest'
Any help appreciated!