Christopher Baines <mail@cbaines.net> writes:

> * gnu/packages/logging.scm (tailon)[inputs]: Add grep, gawk, sed and coreutils
>   as inputs.
>   [arguments]: Wrap bin/tailon to include some inputs in the PATH.

Generally it's better to fully qualify the paths to these programs in
the code. Is that difficult here?

I think all of these inputs are already available, so you can do e.g.:
(substitute "foo"
  (("'grep'") (which "grep))
  (("'gawk'") (which "gawk")))

...instead of referencing the inputs explicitly.