Rcpp looking for Rtools in wrong place

[kendonB]

> Rcpp::sourceCpp('~/Desktop/tmp.cpp')
C:/Rtools-3.3/mingw_64/bin/g++ -m64 -I"C:/PROGRA~1/MICROS~1/MRO/R-33~1.0/include" -DNDEBUG     -I"C:/Users/kmbel/R/win-library/3.3/Rcpp/include" -I"C:/Users/kmbel/Desktop"  -I"c:/applications/extsoft/include"     -O2 -Wall  -mtune=core2 -c tmp.cpp -o tmp.o
C:/Rtools-3.3/mingw_64/bin/g++: not found
make: *** [tmp.o] Error 127
Warning message:
running command 'make -f "C:/PROGRA~1/MICROS~1/MRO/R-33~1.0/etc/x64/Makeconf" -f "C:/PROGRA~1/MICROS~1/MRO/R-33~1.0/share/make/winshlib.mk" SHLIB_LDFLAGS='$(SHLIB_CXXLDFLAGS)' SHLIB_LD='$(SHLIB_CXXLD)' SHLIB="sourceCpp_4.dll" WIN=64 TCLBIN=64 OBJECTS="tmp.o"' had status 2 

It's looking in C:/Rtools-3.3 but Rtools gets installed in C:/Rtools.

Additionally, when I'm working in Rstudio, it prompts me to install additional tools and it installs another copy of Rtools in RBuildTools, which also doesn't get picked up by sourceCpp.

[kendonB]

> sessionInfo()
R version 3.3.0 (2016-05-03)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] RevoUtilsMath_3.2.5

loaded via a namespace (and not attached):
 [1] httr_1.1.0                R6_2.1.2                  tools_3.3.0               withr_1.0.1               RcppArmadillo_0.7.100.3.0
 [6] curl_0.9.7                memoise_1.0.0             Rcpp_0.12.6.4             git2r_0.15.0              digest_0.6.9             
[11] devtools_1.12.0  

[coatless]

This isn't an _Rcpp_ issue per say. More so it is a configuration issue with _RTools_, _RStudio_, and _Microsoft Open R_ as noted on SO with regard to MRO on OS X.

[eddelbuettel]

Your $PATH appears to be wrong. Rcpp does not set or impose it.

If what you said were generally true, we'd have no Windows binaries.

[kendonB]

I had everything (and more) needed in my path: C:/RBuildTools/3.3/bin;C:/RBuildTools/3.3/gcc-4.6.3/bin;C:/Rtools/bin;C:/Rtools/gcc-4.6.3/bin;C:/Rtools/mingw_32/bin;C:/Rtools/mingw_64/bin;

I can confirm that Rcpp in both regular R AND regular R in Rstudio work. I'll file an issue with MRO.

[kendonB]

If anyone lands here, MRO 3.3.1 has fixed this problem.

[eddelbuettel]

Thanks for the update!