On 16 August 2011 at 12:02, Darren Cook wrote: | > I just tried and could _not_ replicate it. I just uncommented my standard | > line with the flag in ~/.R/Makevars: | > | > CXXFLAGS= -std=c++0x -g -O3 -Wall -pipe -pedantic -Wno-variadic-macros | | Thanks Dirk. | I tried with your line and it works for me too. So I tried shortening it | and this works: | CXXFLAGS= -std=c++0x -g -O3 | | but this does not: | CXXFLAGS= -std=c++0x -g | | This also does not work: | CXXFLAGS= -std=c++0x -g -Wall -pipe -pedantic -Wno-variadic-macros | | And neither does this: | CXXFLAGS= -g -Wall -pipe -pedantic -Wno-variadic-macros | | I.e. c++0x was a red herring, and the lack of -O3 is the problem. It | works with -O3, -O2, -O1 and -Os, but fails to work with -O0.
Thanks for doing that. In the 15+ years of Debian maintainership I have seen similar stuff on occassion (esp years when gfortran was newer), but the gcc/g++ are so swamped that I never heard back fromn bug reports. They do have their system for submitting stuff so maybe you could distill something that wouldn't require R and Rcpp? Dirk | Very curious. I considered trying each of the individual optimization | flags [1], to narrow it down further, until I realized how many of them | there were. | | Darren | | [1]: http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html | | | -- | Darren Cook, Software Researcher/Developer | | http://dcook.org/work/ (About me and my work) | http://dcook.org/blogs.html (My blogs and articles) | _______________________________________________ | 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 -- Two new Rcpp master classes for R and C++ integration scheduled for New York (Sep 24) and San Francisco (Oct 8), more details are at http://dirk.eddelbuettel.com/blog/2011/08/04#rcpp_classes_2011-09_and_2011-10 http://www.revolutionanalytics.com/products/training/public/rcpp-master-class.php _______________________________________________ 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
