Hi all,
I've just started using Rcpp and am trying to get cpp11 support working. As
suggested I added [[Rcpp:plugins(cpp11)]] to my source file and a test
function:
// [[Rcpp::export]]
int useCpp11() {
auto x = 10;
return x;
}
This works fine when using:
sourceCpp(filename)
from R, but I would like to be able to compile the package from the command
line.
R CMD build mypackage
fails with the following error:
R CMD build ../fluEvidenceSynthesis
* checking for file ?../fluEvidenceSynthesis/DESCRIPTION? ... OK
* preparing ?fluEvidenceSynthesis?:
* checking DESCRIPTION meta-information ... OK
* cleaning src
* installing the package to process help pages
-----------------------------------
* installing *source* package ?fluEvidenceSynthesis? ...
** libs
g++ -I/usr/share/R/include -DNDEBUG
-I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/Rcpp/include"
-I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/BH/include" -fpic
-g
-O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat
-Werror=format-security -D_FORTIFY_SOURCE=2 -g -c RcppExports.cpp -o
RcppExports.o
g++ -I/usr/share/R/include -DNDEBUG
-I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/Rcpp/include"
-I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/BH/include" -fpic
-g
-O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat
-Werror=format-security -D_FORTIFY_SOURCE=2 -g -c rcpp_hello_world.cpp -o
rcpp_hello_world.o
rcpp_hello_world.cpp: In function ?int useCpp11()?:
rcpp_hello_world.cpp:33:10: error: ?x? does not name a type
auto x = 10;
^
rcpp_hello_world.cpp:34:12: error: ?x? was not declared in this scope
return x;
^
make: *** [rcpp_hello_world.o] Error 1
ERROR: compilation failed for package ?fluEvidenceSynthesis?
* removing ?/tmp/RtmpWdUduu/Rinst2b601aa285e9/fluEvidenceSynthesis?
-----------------------------------
ERROR: package installation failed
Any help appreciated.
Cheers, Edwin
[[alternative HTML version deleted]]
Hi Edwin, If you look at the build output you will notice that the C++11 compiler flag is not being used. I just created a small package using Rcpp11 and your function and it worked without a problem. I can't give you a specific reason without seeing your package but there are some possibilities I would guess right away. 1. Make sure you are 'LinkingTo' Rcpp11 in your DESCRIPTION 2. Unless you are using some custom Makevars file, you should set 'SystemRequirements: C++11' in your DESCRIPTION Charles On Wed, Jun 24, 2015 at 10:07 AM, Edwin van Leeuwen <edwinvanl at gmail.com> wrote:> Hi all, > > I've just started using Rcpp and am trying to get cpp11 support working. As > suggested I added [[Rcpp:plugins(cpp11)]] to my source file and a test > function: > // [[Rcpp::export]] > int useCpp11() { > auto x = 10; > return x; > } > > This works fine when using: > sourceCpp(filename) > from R, but I would like to be able to compile the package from the command > line. > R CMD build mypackage > fails with the following error: > R CMD build ../fluEvidenceSynthesis > * checking for file ?../fluEvidenceSynthesis/DESCRIPTION? ... OK > * preparing ?fluEvidenceSynthesis?: > * checking DESCRIPTION meta-information ... OK > * cleaning src > * installing the package to process help pages > ----------------------------------- > * installing *source* package ?fluEvidenceSynthesis? ... > ** libs > g++ -I/usr/share/R/include -DNDEBUG > -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/Rcpp/include" > -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/BH/include" -fpic -g > -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat > -Werror=format-security -D_FORTIFY_SOURCE=2 -g -c RcppExports.cpp -o > RcppExports.o > g++ -I/usr/share/R/include -DNDEBUG > -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/Rcpp/include" > -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/BH/include" -fpic -g > -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat > -Werror=format-security -D_FORTIFY_SOURCE=2 -g -c rcpp_hello_world.cpp -o > rcpp_hello_world.o > rcpp_hello_world.cpp: In function ?int useCpp11()?: > rcpp_hello_world.cpp:33:10: error: ?x? does not name a type > auto x = 10; > ^ > rcpp_hello_world.cpp:34:12: error: ?x? was not declared in this scope > return x; > ^ > make: *** [rcpp_hello_world.o] Error 1 > ERROR: compilation failed for package ?fluEvidenceSynthesis? > * removing ?/tmp/RtmpWdUduu/Rinst2b601aa285e9/fluEvidenceSynthesis? > ----------------------------------- > ERROR: package installation failed > > > Any help appreciated. > > Cheers, Edwin > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.[[alternative HTML version deleted]]
Thank you! I was missing the SystemRequirements. I guess it could be useful to add this to the example given here: http://gallery.rcpp.org/articles/simple-lambda-func-c++11/ Cheers, Edwin On Wed, 24 Jun 2015 at 17:50 Charles Determan <cdetermanjr at gmail.com> wrote:> Hi Edwin, > > If you look at the build output you will notice that the C++11 compiler > flag is not being used. I just created a small package using Rcpp11 and > your function and it worked without a problem. I can't give you a specific > reason without seeing your package but there are some possibilities I would > guess right away. > > 1. Make sure you are 'LinkingTo' Rcpp11 in your DESCRIPTION > 2. Unless you are using some custom Makevars file, you should set > 'SystemRequirements: C++11' in your DESCRIPTION > > Charles > > On Wed, Jun 24, 2015 at 10:07 AM, Edwin van Leeuwen <edwinvanl at gmail.com> > wrote: > >> Hi all, >> >> I've just started using Rcpp and am trying to get cpp11 support working. >> As >> suggested I added [[Rcpp:plugins(cpp11)]] to my source file and a test >> function: >> // [[Rcpp::export]] >> int useCpp11() { >> auto x = 10; >> return x; >> } >> >> This works fine when using: >> sourceCpp(filename) >> from R, but I would like to be able to compile the package from the >> command >> line. >> R CMD build mypackage >> fails with the following error: >> R CMD build ../fluEvidenceSynthesis >> * checking for file ?../fluEvidenceSynthesis/DESCRIPTION? ... OK >> * preparing ?fluEvidenceSynthesis?: >> * checking DESCRIPTION meta-information ... OK >> * cleaning src >> * installing the package to process help pages >> ----------------------------------- >> * installing *source* package ?fluEvidenceSynthesis? ... >> ** libs >> g++ -I/usr/share/R/include -DNDEBUG >> -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/Rcpp/include" >> -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/BH/include" -fpic -g >> -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat >> -Werror=format-security -D_FORTIFY_SOURCE=2 -g -c RcppExports.cpp -o >> RcppExports.o >> g++ -I/usr/share/R/include -DNDEBUG >> -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/Rcpp/include" >> -I"/home/edwin/R/x86_64-pc-linux-gnu-library/3.2/BH/include" -fpic -g >> -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat >> -Werror=format-security -D_FORTIFY_SOURCE=2 -g -c rcpp_hello_world.cpp -o >> rcpp_hello_world.o >> rcpp_hello_world.cpp: In function ?int useCpp11()?: >> rcpp_hello_world.cpp:33:10: error: ?x? does not name a type >> auto x = 10; >> ^ >> rcpp_hello_world.cpp:34:12: error: ?x? was not declared in this scope >> return x; >> ^ >> make: *** [rcpp_hello_world.o] Error 1 >> ERROR: compilation failed for package ?fluEvidenceSynthesis? >> * removing ?/tmp/RtmpWdUduu/Rinst2b601aa285e9/fluEvidenceSynthesis? >> ----------------------------------- >> ERROR: package installation failed >> >> >> Any help appreciated. >> >> Cheers, Edwin >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > >[[alternative HTML version deleted]]