Re: [PATCH] gnu: r: Add which to propagated-inputs.

[ludo@gnu.org (Ludovic Courtès)]

Hi,

Raoul Bonnal <ilpuccio.febo@gmail.com> skribis:

> From: Raoul Jean Pierre Bonnal <ilpuccio.febo@gmail.com>
>
> * gnu/packages/statistics.scm (r)[propagated-inputs]: Add which.
> ---
>
> Notes:
>     In my local installation of R
>     
>     Sys.which(c("bash"))
>     
>     was not working properly, inspecting the function(below) I had not installed which beforehand.
>     > Sys.which
>     function (names)
>     {
>         res <- character(length(names))
>         names(res) <- names
>         which <- "/gnu/store/cn670s29lsf2nr5axd8gmhl8sb9qpyiq-which-2.21/bin/which"

This function contains the absolute file name of ‘which’, so everything
should work?

Doing this (modifying the code to refer to external commands by absolute
file names) is preferable over propagating inputs, because it avoids
clobbering user profiles.

Thanks,
Ludo’.