On 23 December 2012 at 18:31, Martin Morgan wrote: | When trying to install Rcpp 0.10.2 with | | $ R --version | R Under development (unstable) (2012-12-18 r61372) -- "Unsuffered Consequences" | $ clang++ --version | Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0) | Target: x86_64-pc-linux-gnu | Thread model: posix
I just upgraded my r-devel version today; the one I used to test 0.10.2 was probably a week or at the most two weeks old. I did quite a few R CMD check runs; they all passed -- but I only used g++. Methinks I could have caught that if I had used clang. | I get | | $ R CMD INSTALL Rcpp_0.10.2.tar.gz | ... | clang++ -I/home/mtmorgan/bin/R-devel/include -DNDEBUG -I../inst/include/ | -I/usr/local/include -fpic -g -O2 -c Timer.cpp -o Timer.o | ... | ** testing if installed package can be loaded | Error in dyn.load(file, DLLpath = DLLpath, ...) : | unable to load shared object | '/home/mtmorgan/R/x86_64-unknown-linux-gnu-library/2.16/Rcpp/libs/Rcpp.so': | /home/mtmorgan/R/x86_64-unknown-linux-gnu-library/2.16/Rcpp/libs/Rcpp.so: | undefined symbol: clock_gettime | Error: loading failed | | From man clock_gettime I have | | ... | Link with -lrt. | | and adding PKG_LIBS += -lrt to src/Makevars addresses the problem for me, but | I'm not sure that is a universal solution? Also, I had an identical problem with | another package (Matrix, since corrected) so there is perhaps something | a-typical about my configuration. I don't think so. The internal-to-Rcpp Timer class is new in 0.10.2. And Yan is (as usual) correct, -lrt is AFACR specific to Linux. I needed that in the past when using the kernel-based high-res timer. So this is something we need to figure out. So we seem to know that r-devel and clang need it. Can you check if r-release needs it? With g++, neither R versions seems to need it. OTOH I don't think adding -lrt does any harm so maybe we'll add "in general". Might run this by Simon too.... This needs more work. Thanks so much for the heads-up! Dirk | | Martin | -- | Computational Biology / Fred Hutchinson Cancer Research Center | 1100 Fairview Ave. N. | PO Box 19024 Seattle, WA 98109 | | Location: Arnold Building M1 B861 | Phone: (206) 667-2793 | _______________________________________________ | Rcpp-devel mailing list | Rcpp-devel@lists.r-forge.r-project.org | https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel -- Dirk Eddelbuettel | e...@debian.org | http://dirk.eddelbuettel.com _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
