[R-pkg-devel] Problems with devtools::build() in R

[Ivan Krylov]

В Wed, 17 May 2023 11:05:46 -0400
Jarrett Phillips <phillipsjarrett1 using gmail.com> пишет:

> `which gfortran`  returns
>
> /usr/local/bin/gfortran

I think you ran the other gfortran. Is there a gfortran installation in
/opt/gfortran?

> libraries:
> =/usr/local/gfortran/lib/gcc/aarch64-apple-darwin22/12.2.0/:/usr/local/gfortran/lib/gcc/aarch64-apple-darwin22/12.2.0/../../../../aarch64-apple-darwin22/lib/aarch64-apple-darwin22/12.2.0/:/usr/local/gfortran/lib/gcc/aarch64-apple-darwin22/12.2.0/../../../../aarch64-apple-darwin22/lib/:/usr/local/gfortran/lib/gcc/aarch64-apple-darwin22/12.2.0/../../../aarch64-apple-darwin22/12.2.0/:/usr/local/gfortran/lib/gcc/aarch64-apple-darwin22/12.2.0/../../../

> "/Library/Frameworks/R.framework/Resources/etc/Makeconf"

If you open this file, the flags
-L/opt/R/arm64/gfortran/lib/gcc/aarch64-apple-darwin20.6.0/12.0.1
-L/opt/R/arm64/gfortran/lib must be present in there somewhere. (Or
maybe it's in ~/.R/Makevars, but you would've remembered creating it
yourself.)

What if you replace the paths with the ones returned by gfortran,
namely, -L/usr/local/gfortran/lib/gcc/aarch64-apple-darwin22/12.2.0
-L/usr/local/gfortran/lib? (Even better, with the paths returned by
/opt/gfortran/bin/gfortran -print-search-dirs, assuming this command
works.) While you're at it, fix other Fortran-related paths like the
path to the compiler. I still suspect you may end up having problems
because your R was built with a different version of gfortran, but I
don't know a better way of moving forward.

I'm going on general POSIX-like knowledge since I lack a Mac to test
things on. Maybe R-SIG-Mac will have better advice for you.

-- 
Best regards,
Ivan