Fedora 42 R source build issues

On Wed, 16 Apr 2025 at 09:48, Roger Bivand via R-SIG-Fedora <
r-sig-fedora at r-project.org> wrote:

Building R 4.5.0 from source on Fedora 42 hits problems because 42 ships
with Tcl/Tk 9. tcl8-devel and tk8-devel are available and can be used,
but
I haven't yet found a viable incantation yet. Neither R released nor
devel
support Tcl/Tk 9 https://www.tcl-lang.com/software/tcltk/9.0.html.

Yes, you just need to install tcl8-devel and tk8-devel (and tell dnf to
remove version 9 if it's already there) and compile as usual.

There is now a fix in R-devel that allows R to be linked to Tcl/Tk 9. I'll
give it a few days to bed in and then port it over to R-4-5-branch so that
it can go in R 4.5.1.

Martyn

Building against external BLAS is also not self-evident, so may need
guidance.

Building against FlexiBLAS is recommended. So you need to install
flexiblas-devel, then tell R via --with-blas=flexiblas --with-lapack.

See the configure part of our spec for a complete reference of what we do:

https://src.fedoraproject.org/rpms/R/blob/rawhide/f/R.spec#_326

I?aki

Any suggestions welcome!

Roger

---
Roger Bivand
Emeritus Professor
Department of Economics
Norwegian School of Economics, Bergen, Norway

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I?aki ?car

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Fedora 42 R source build issues

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