[MacPorts] #61549: R @4.0.3 fails to build on MacOS 11.0.1 "Big Sur"

[MacPorts]

#61549: R @4.0.3 fails to build on MacOS 11.0.1 "Big Sur"
--------------------------------+---------------------------
 Reporter:  karoliskoncevicius  |      Owner:  kjell.konis@…
     Type:  defect              |     Status:  assigned
 Priority:  Normal              |  Milestone:
Component:  ports               |    Version:  2.6.4
 Keywords:                      |       Port:  R
--------------------------------+---------------------------
 R fails to build:

 {{{
 --->  Verifying checksums for R
 --->  Extracting R
 --->  Configuring R
 Error: Failed to configure R, consult
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_math_R/R/work/R-4.0.3/config.log
 Error: Failed to configure R: configure failure: command execution failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_math_R/R/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets to report a bug.
 Error: Processing of port R failed
 }}}


 {{{
 :info:configure checking for gcc... /opt/local/bin/clang-mp-9.0
 :info:configure checking whether the C compiler works... no
 :info:configure configure: error: in
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_math_R/R/work/R-4.0.3':
 :info:configure configure: error: C compiler cannot create executables
 :info:configure See `config.log' for more details
 }}}

 From past experience I know that this error might be caused by wrong Xcode
 version or not accepted license. However I deleted everything: Xcde,
 command line tools, and Mac Ports, reinstalled, accepted the license and
 am still getting this error. Also all the other ports seem to be working
 fine (git, neovim, bash, pass, redo, multimarkdown).

-- 
Ticket URL: <https://trac.macports.org/ticket/61549>
MacPorts <https://www.macports.org/>
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