[R-SIG-Mac] trying to compile packages from source, but lacking /opt/local/bin/gcc-mp-5

[Vincent Carey]

On Tue, Nov 21, 2017 at 3:34 AM, Prof Brian Ripley <ripley at stats.ox.ac.uk>
wrote:

> On 21/11/2017 04:03, Vincent Carey wrote:
>
>> %vjcair> R CMD config CC
>>
>> /opt/local/bin/gcc-mp-5
>>
>>
>> I don't seem to be able to override this using environment variable CC.
>> And
>>
>
> When all else fails, read the manual (but, see the posting guide, before
> posting here)!  This is covered in, e.g.,
>
> https://cran.r-project.org/doc/manuals/r-release/R-admin.htm
> l#macOS-packages
>
> https://cran.r-project.org/doc/manuals/r-release/R-admin.htm
> l#Customizing-package-compilation
>
>
Yes, section 6.3.3. gives the solution.


>
>> I cannot see how to install gcc-mp-5.  This version of R was obtained from
>>
>> r.research.att.com, R-3.4-branch-el-capitan.pkg.
>>
>>
>> I would have expected clang to be the c compiler for this build.  I will
>>
>
> It was for the released version of 3.4.2.  Problems with off-CRAN builds
> are best addressed to the builder, here Simon Urbanek.  But that is a
> month-old snapshot build ... I don't understand why you did not simply
> update it, and I see 'clang' in the current snapshot.
>

Without alternate settings in the platform-specific Makevars, the most
recent binary gives the value of "R CMD config CC" noted in the original
posting.

Thank you for your assistance.


>
>
>
>> appreciate any suggestions.  As it stands, any installation from source
>> requiring
>>
>> compilation throws errors like
>>
>> /bin/sh: /opt/local/bin/g++-mp-5: No such file or directory
>>
>>
>> R version 3.4.2 Patched (2017-10-20 r73567) -- "Short Summer"
>>
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>>
>> Platform: x86_64-apple-darwin15.6.0 (64-bit)
>>
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>> sessionInfo()
>>>
>>
>> R version 3.4.2 Patched (2017-10-20 r73567)
>>
>> Platform: x86_64-apple-darwin15.6.0 (64-bit)
>>
>> Running under: macOS Sierra 10.12.6
>>
>>
>> Matrix products: default
>>
>> BLAS:
>> /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/
>> libRblas.0.dylib
>>
>> LAPACK: /Library/Frameworks/R.framework/Versions/3.4
>>
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>
> --
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Emeritus Professor of Applied Statistics, University of Oxford
>

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