[Rcpp-devel] g++ flags

Wed May 7 16:18:17 CEST 2014

On Wed, 2014-05-07 at 08:59 -0400, Gabor Grothendieck wrote:
> I did read it but his theory must be wrong 

I'm right here you know.

> since it failed as
> described before Kevin's fix and worked afterwards.

It is a Windows-specific issue. The help page for Sys.setenv reveals
all:

"Most platforms allow setting an environment variable to "", but Windows
does not, and there Sys.setenv(FOO = "") unsets FOO."

Martyn

> On Wed, May 7, 2014 at 8:14 AM, Dirk Eddelbuettel <edd at debian.org> wrote:
> >
> > On 7 May 2014 at 06:47, Gabor Grothendieck wrote:
> > | I am now getting latex errors when I try to install Rcpp from github
> >
> > We treat GitHub as a development repository, just like R-Forge before it.
> >
> > To us, it is not a means for general distribution (though we strive to keep
> > the master branch sane at all times).  OTOH releases are rigorously tested on
> > win-builder and other platforms. So if in doubt, use CRAN.
> >
> > That said, even GitHub gets continuous integration and builds on every
> > commit. Things generally work for the OS X and Linux crowds (for several
> > flavours of each). We do turn vignettes off on GitHub to save some processing
> > time. Building vignettes requires highlight (the package) and a decent LaTeX.
> >
> > As nobody in Rcpp Core develops (primarily) on Windows, if something breaks
> > you get to keep the pieces -- at least until you, or someone else, fixes it.
> >
> > Dirk
> >
> >
> > | (see below) but it does now work (without the vignettes) if I use:
> > |    github_install("RcppCore/Rcpp", build_vignettes = FALSE)
> > | so at least I can proceed without explicitly setting any environment
> > | variables now.
> > | Thanks.
> > |
> > | > R.version.string
> > | [1] "R version 3.1.0 Patched (2014-05-03 r65519)"
> > | >
> > | > devtools::install_github("RcppCore/rcpp")
> > | Installing github repo rcpp/master from RcppCore
> > | Downloading master.zip from https://github.com/RcppCore/rcpp/archive/master.zip
> > |
> > | <snip>
> > |
> > | * creating vignettes ...Warning: running command
> > | '"C:/PROGRA~1/R/R-3.1/bin/x64/Rscript" --vanilla --default-packages=
> > | -e "tools::buildVignettes(dir = '.', tangle = TRUE)"' had status 1
> > |  ERROR
> > | Loading required package: inline
> > | Loading required package: highlight
> > |
> > | Attaching package: 'Rcpp'
> > |
> > | The following object is masked from 'package:inline':
> > |
> > |     registerPlugin
> > |
> > | Warning: running command
> > | '"C:\PROGRA~2\MIKTEX~1.9\miktex\bin\texi2dvi.exe" --quiet --pdf
> > | "Rcpp-FAQ.tex" --max-iterations=20 -I
> > | "C:/PROGRA~1/R/R-3.1/share/texmf/tex/latex" -I
> > | "C:/PROGRA~1/R/R-3.1/share/texmf/bibtex/bst"' had status 1
> > | Error: running 'texi2dvi' on 'Rcpp-FAQ.tex' failed
> > |
> > | LaTeX errors:
> > | cpp-FAQ.tex:516: pdfTeX error (font expansion): auto expansion is only possible
> > |  with scalable fonts
> > |
> > |
> > | Here is how much of TeX's memory you used:
> > | cpp-FAQ.tex:516:  ==> Fatal error occurred, no output PDF file produced!
> > | Execution halted
> > | Error: Command failed (1)
> > |
> > | On Wed, May 7, 2014 at 1:50 AM, Kevin Ushey <kevinushey at gmail.com> wrote:
> > | > Hi Gabor,
> > | >
> > | > Looks like it was a bug on our end -- R-exts specifies that USE_CXX1X
> > | > should be set to any value; we try to set it to nothing (ie, define it
> > | > but leave it empty) but apparently that is not accepted.
> > | >
> > | > I just pushed a bug fix to GitHub and it works on my Windows VM; can
> > | > you give it another shot?
> > | >
> > | > Thanks,
> > | > Kevin
> > | >
> > | > On Tue, May 6, 2014 at 9:09 PM, Gabor Grothendieck
> > | > <ggrothendieck at gmail.com> wrote:
> > | >> On Windows with R 3.1 I installed the latest Rcpp from github and did
> > | >> the following but the compliation gave an error which was was due to
> > | >> the C++11 constructs.  If I rerun it but uncomment the Sys.setenv line
> > | >> then it works. What do I do to get the cpp11 attribute to work?
> > | >>
> > | >> library(Rcpp)
> > | >> # Sys.setenv("PKG_CXXFLAGS"="-std=c++0x")
> > | >> cat('
> > | >> // [[Rcpp::plugins("cpp11")]]
> > | >> // [[Rcpp::export]]
> > | >> int useCpp11() {
> > | >>     auto x = 10;
> > | >>     return x;
> > | >> }
> > | >> ', file = "testauto.cpp")
> > | >> sourceCpp("testauto.cpp")
> > | >>
> > | >> On Wed, Apr 30, 2014 at 11:12 AM, Dirk Eddelbuettel <edd at debian.org> wrote:
> > | >>>
> > | >>> On 30 April 2014 at 10:05, Dirk Eddelbuettel wrote:
> > | >>> |
> > | >>> | On 30 April 2014 at 10:41, JJ Allaire wrote:
> > | >>> | | I think that might be overkill (or something that we can do later if users ask
> > | >>> | | for it).
> > | >>> |
> > | >>> | It is a one-liner, and it just sits there to be used, like OpenMP plugin.
> > | >>> |
> > | >>> | So in that sense it doesn't hurt, and it may yet help those for which both R
> > | >>> | < 3.1.0 and Windows are true.
> > | >>>
> > | >>> Actually, as Gabor points out, where 'R < 3.1.0' and 'g++ < 4.7' which may
> > | >>> also be a bunch of servers running older RHEL or Ubuntu LTS.
> > | >>>
> > | >>> Dirk
> > | >>>
> > | >>> --
> > | >>> Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com
> > | >>> _______________________________________________
> > | >>> Rcpp-devel mailing list
> > | >>> Rcpp-devel at lists.r-forge.r-project.org
> > | >>> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
> > | >>
> > | >>
> > | >>
> > | >> --
> > | >> Statistics & Software Consulting
> > | >> GKX Group, GKX Associates Inc.
> > | >> tel: 1-877-GKX-GROUP
> > | >> email: ggrothendieck at gmail.com
> > | >> _______________________________________________
> > | >> Rcpp-devel mailing list
> > | >> Rcpp-devel at lists.r-forge.r-project.org
> > | >> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
> > |
> > |
> > |
> > | --
> > | Statistics & Software Consulting
> > | GKX Group, GKX Associates Inc.
> > | tel: 1-877-GKX-GROUP
> > | email: ggrothendieck at gmail.com
> >
> > --
> > Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com
> 
> 
> 

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