Description:

Installing R in a Docker container with a base archlinux results in a unusable installation, showing error messages as below.

Running "pacman -S which" fixes the problem, so I think "which" should be installed as a dependency.

Related: https://github.com/HenrikBengtsson/Wishlist-for-R/issues/36

Steps to reproduce:

% sudo docker run -ti archlinux/base
# pacman -Sy r
# R


The messages I get are like this:

[root@3f5c2421d329 /]# R

R version 3.6.0 (2019-04-26) -- "Planting of a Tree"
Copyright (C) 2019 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

Error: package or namespace load failed for ‘utils’:
.onLoad failed in loadNamespace() for 'utils', details:
call: system(paste(which, shQuote(names[i])), intern = TRUE, ignore.stderr = TRUE)
error: error in running command
Error: package or namespace load failed for ‘stats’:
.onLoad failed in loadNamespace() for 'utils', details:
call: system(paste(which, shQuote(names[i])), intern = TRUE, ignore.stderr = TRUE)
error: error in running command
During startup - Warning messages:
1: package ‘utils’ in options("defaultPackages") was not found
2: package ‘stats’ in options("defaultPackages") was not found