[R-SIG-Mac] gfortran: command not found

[Simon Urbanek]

Already answered to you and on R-pkg-devel [9 mins after you posted there - now more than 5h ago...]:

To quote from the page you downloaded R from:

This release uses Xcode 14.2/14.3 and GNU Fortran 12.2. If you wish to compile R packages which contain Fortran code, you may need to download the corresponding GNU Fortran compiler from https://mac.R-project.org/tools <https://mac.r-project.org/tools>. 



> On Jul 6, 2023, at 5:16 PM, Spencer Graves <spencer.graves using prodsyse.com> wrote:
> 
> Hello, All:
> 
> 
> 	  "R CMD check KFAS" under macOS 11.7.8 (the latest version that will run on my aging Mac) complains "gfortran: command not found".
> 
> 
> 	  I just upgraded to R 4.3.1 and installed "gfortran-12.2-universal.pkg" per "https://cran.r-project.org/bin/macosx/tools/".  I expected this to solve the problem.  It didn't.
> 
> 
> 	  Suggestions?
> 	  Thanks,
> 	  Spencer Graves
> 
> 
> p.s.  This is my fork of KFAS, available at "https://github.com/sbgraves237/KFAS".  "sessionInfo()" appears below.
> 
> 
> ##########
> 
> 
> sessionInfo()
> R version 4.3.1 (2023-06-16)
> Platform: x86_64-apple-darwin20 (64-bit)
> Running under: macOS Big Sur 11.7.8
> 
> Matrix products: default
> BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib 
> LAPACK: /Library/Frameworks/R.framework/Versions/4.3-x86_64/Resources/lib/libRlapack.dylib;  LAPACK version 3.11.0
> 
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
> 
> time zone: America/Chicago
> tzcode source: internal
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
> 
> loaded via a namespace (and not attached):
> [1] compiler_4.3.1  R6_2.5.1        magrittr_2.0.3  cli_3.6.1
> [5] tools_4.3.1     glue_1.6.2      rstudioapi_0.14 roxygen2_7.2.3
> [9] xml2_1.3.4      vctrs_0.6.2     stringi_1.7.12  knitr_1.42
> [13] xfun_0.39       stringr_1.5.0   lifecycle_1.0.3 rlang_1.1.1
> [17] purrr_1.0.1
> >
> 
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