[R-SIG-Mac] Installing gfortran

[Simon Urbanek]

For posterity - please always consult

https://mac.r-project.org/tools/ (linked from CRAN)

The old locations like libs* are no longer updated and have been deprecated in favor of /tools and /bin which are maintained for all builds. Similarly, I would strongly discourage following any advice from blogs as they tend to be outdated, wrong or both.

Cheers
Simon


> On Apr 23, 2022, at 10:48 AM, Göran Broström <goran.brostrom using umu.se> wrote:
> 
> Hi Patrick,
> 
> Den 2022-04-22 kl. 22:54, skrev Patrick Schratz:
>> Hi Göran
>> |curl -O https://mac.r-project.org/libs-arm64/gfortran-f51f1da0-darwin20.0-arm64.tar.gz sudo tar fvxz gfortran-f51f1da0-darwin20.0-arm64.tar.gz -C / |
>> should do it.
> 
> It did. Thanks!
> 
> Göran
> 
>> See also https://pat-s.me/transitioning-from-x86-to-arm64-on-macos-experiences-of-an-r-user/#gfortran <https://pat-s.me/transitioning-from-x86-to-arm64-on-macos-experiences-of-an-r-user/#gfortran> or https://cynkra.com/blog/2021-03-16-gfortran-macos/ <https://cynkra.com/blog/2021-03-16-gfortran-macos/> for more information.
>> Cheers
>> Patrick
>> On 22 Apr 2022, at 22:01, Göran Broström wrote:
>>    Trying gfortran-f51f1da0-darwin20.0-arm64.tar.gz from
>>    https://mac.r-project.org/libs-arm64/
>>    <https://mac.r-project.org/libs-arm64/> (following instructions),
>>    download and unpack,
>>    but no sight of gfortran in /opt/R/arm64/bin
>>    so the building of my package fails.
>>    clang -arch arm64
>>    -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG
>>    -I/opt/R/arm64/include -fPIC -falign-functions=64 -Wall -g -O2 -c
>>    c2f.c -o c2f.o
>>    /opt/R/arm64/bin/gfortran -mtune=native -fno-optimize-sibling-calls
>>    -fPIC -Wall -g -O2 -c chek.f -o chek.o
>>    make: /opt/R/arm64/bin/gfortran: No such file or directory
>>    make: *** [chek.o] Error 1
>>    Of course, there is a warning on that web page (so why the link to
>>    it?) saying that
>>    IMPORTANT: All binaries are moving to a unified repository under
>>    /bin/darwin<ver>/<arch> with manifest file to simplify automated
>>    installataion. Go to /bin/darwin20/arm64 for latest Big Sur arm64
>>    binaries. The following is only kept for legacy access.
>>    but there I cannot identify (by name) any file that could contain a
>>    fortran compiler.
>>    To summarize: I need help.
>>    Thanks, Göran
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