[R-SIG-Mac] clang: error: unsupported option '-fopenmp'

[Roy Mendelssohn - NOAA Federal]

Um you didn't mention what version of the compiler and where you downloaded it from.  The last couple of versions available through the tools links have supported OpenMP.  I have compiled that package,  but I am using R 3.5.3 and clang 6,  I believe R 3.6.0 uses clang 7, but that also supports openmp

HTH,

-Roy

> On May 6, 2019, at 4:16 PM, Spencer Graves <spencer.graves using prodsyse.com> wrote:
> 
> Hello, All:
> 
> 
>       I'm getting "clang: error: unsupported option '-fopenmp'" when trying to build "https://github.com/helske/bssm" under macOS 10.14.14 with R 3.6.0;  see below.
> 
> 
>       What do you suggest?
> 
> 
>       Thanks,
>       Spencer Graves
> 
> 
> p.s.  Helske told me he thought my compiler was out of date. However, I've so far been unable to find instructions that are sufficiently current to convince me I might not do more harm than good following them.
> 
> 
>> R CMD build bssm
> * checking for file ‘bssm/DESCRIPTION’ ... OK
> * preparing ‘bssm’:
> * checking DESCRIPTION meta-information ... OK
> * cleaning src
> * installing the package to build vignettes
>       -----------------------------------
> * installing *source* package ‘bssm’ ...
> ** using staged installation
> ** libs
> clang++ -std=gnu++11 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/BH/include" -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/RcppArmadillo/include" -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/ramcmc/include" -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/sitmo/include" -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fopenmp -fPIC  -Wall -g -O2  -c R_approx.cpp -o R_approx.o
> clang: error: unsupported option '-fopenmp'
> make: *** [R_approx.o] Error 1
> ERROR: compilation failed for package ‘bssm’
> * removing ‘/private/var/folders/mh/mrm_14nx19g13lsnj9zmvwjr0000gn/T/RtmppA2gBg/Rinst24427c5cbfeb/bssm’
>       -----------------------------------
> ERROR: package installation failed
> 
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**********************
"The contents of this message do not reflect any position of the U.S. Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
***Note new street address***
110 McAllister Way
Santa Cruz, CA 95060
Phone: (831)-420-3666
Fax: (831) 420-3980
e-mail: Roy.Mendelssohn using noaa.gov www: http://www.pfeg.noaa.gov/

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