RccpGSL，在Windows 7上从R安装/使用GSL

Question

I'm used to R but I'm a complete beginner in C++. I'm having a hard time installing GSL to use it with RcppGSL in R in order to refine a package comprising C++ code. I downloaded the latest GSL version, unpacked it to C:/GSL , set the environmental variable LIB_GSL to C:/GSL and the PATH to C:/GSL/bin .

Like I said, I want to refine an existing package. I've forked and pulled the latest version of the package in question from github. My primary goal is simply to be able to use and refine the package. However, when I'm trying to make a source package out of the source files I get the following Error:

Installing to library 'C:/Users/Simon/Documents/R/win-library/3.1'
* installing *source* package 'Rflim' ...
** libs
g++ -m64 -I"C:/PROGRA~1/R/R-31~1.2/include" -DNDEBUG    -I"C:/Users/Simon/Documents/R/win-library/3.1/Rcpp/include" -I"d:/RCompile/CRANpkg/extralibs64/local/include"  -IC:/Users/Simon/Documents/R/win-library/3.1/Rcpp/include -I/usr/local/include -I C:/Users/Simon/Documents/R/win-library/3.1/RcppGSL/include   -O2 -Wall  -mtune=core2 -c flim.cpp -o flim.o
In file included from C:/Users/Simon/Documents/R/win-library/3.1/RcppGSL/include/RcppGSL.h:23:0,
                 from flim.cpp:1:
C:/Users/Simon/Documents/R/win-library/3.1/RcppGSL/include/RcppGSLForward.h:26:29: fatal error: gsl/gsl_vector.h: No such file or directory
compilation terminated.
make: *** [flim.o] Error 1
Warnung: Ausf�hrung von Kommando 'make -f "Makevars" -f "C:/PROGRA~1/R/R-31~1.2/etc/x64/Makeconf" -f "C:/PROGRA~1/R/R-31~1.2/share/make/winshlib.mk" SHLIB_LDFLAGS='$(SHLIB_CXXLDFLAGS)' SHLIB_LD='$(SHLIB_CXXLD)' SHLIB="Rflim.dll" WIN=64 TCLBIN=64 OBJECTS="flim.o"' ergab Status 2
ERROR: compilation failed for package 'Rflim'
* removing 'C:/Users/Simon/Documents/R/win-library/3.1/Rflim'

Exited with status 1.

Sorry, there are a couple of german words in there: Warnung: Ausf hrung von Kommando==Warning:executing command

What I realize is that R is trying to access the GSL library via the RcppGSL path. Is that correct? Shouldn't it go directly to C:/GSL instead? I also realized that R is trying to go to paths from both Rcpp as well as RcppGSL and I don't see why...

I would appreciate any clarification or suggestions on how to solve the problem.

Thank you!!!

Answer 1

Please install the prebuild GSL version for R on Windows from the support site provided by Prof Ripley and then set these values accordingly in src/Makevars.win

## This assumes that the LIB_GSL variable points to working GSL libraries
PKG_CPPFLAGS=-I$(LIB_GSL)/include -I../inst/include
PKG_LIBS=-L$(LIB_GSL)/lib -lgsl -lgslcblas 

either directly, or set LIB_GSL accordingly.

This is how CRAN builds the package, and it evidently works.