Problem with `direnv` package definition

[Tanguy Le Carrour]

Dear Guix

As I'm still in the process of setting up my environment,
I am not (yet) able to write and submit a patch for package `direnv`,
so I'm sending this report instead…

As mentioned on the `direnv` homepage, "direnv is compiled into
a single static executable" [1]. As I understand it, this means that
Go is required to build it, but not to run it.

[1]: https://github.com/direnv/direnv

However, in the package definition [2], 3 Go packages are listed as
"inputs" whereas they should be listed as "native-inputs". Is this
correct?

[2]: gnu/packages/shellutils.scm

As I said, I'm still learning. But I've tried, and here is what I've
done so far…

I've `git clone`d the repo, ran the `guix env… guix` then `bootstrap`
`configure` and `make` and everything seems to be fine.
Just to make sure, I did `./pre-… guix env… direnv` then
ran `./pre-… guix build direnv` and everything went well.
Then I moved the direnv dependencies from inputs to native-inputs and
build it again… and it unsurprisingly failed! The error message [3]
does not say much… at least to me! ^_^'

[3]: output of `./pre-inst-env guix build --keep-failed direnv`
  direnv-2.15.2/version.txt
  direnv-2.15.2/xdg.go
  phase `unpack' succeeded after 0.0 seconds
  starting phase `bootstrap'
  no 'configure.ac' or anything like that, doing nothing
  phase `bootstrap' succeeded after 0.0 seconds
  starting phase `patch-usr-bin-file'
  phase `patch-usr-bin-file' succeeded after 0.0 seconds
  starting phase `patch-source-shebangs'
  phase `patch-source-shebangs' succeeded after 0.0 seconds
  starting phase `patch-generated-file-shebangs'
  phase `patch-generated-file-shebangs' succeeded after 0.0 seconds
  starting phase `build'
  make: *** No targets specified and no makefile found.  Stop.
  Backtrace:
  4 (primitive-load
      "/gnu/store/7rrxdai48si293dihzf55zn3svn…")
  In ice-9/eval.scm:
     191:35  3 (_ #f)
  In srfi/srfi-1.scm:
     863:16  2 (every1 #<procedure 71bfc0 at /gnu/store/i5ip2vy29fqpp…>
  …)
  In
   /gnu/store/i5ip2vy29fqppjb4pq5isq36gqd42d89-module-import/guix/build/gn
   u-build-system.scm:
   799:28  1 (_ _)
  In
   
/gnu/store/i5ip2vy29fqppjb4pq5isq36gqd42d89-module-import/guix/build/utils.scm:
   616:6  0 (invoke _ . _)
   
/gnu/store/i5ip2vy29fqppjb4pq5isq36gqd42d89-module-import/guix/build/utils.scm:616:6:
 In procedure invoke:
  Throw to key `srfi-34' with args `(#<condition &invoke-error[program: "make" 
arguments: ("-j" "8"
  "DESTDIR=/gnu/store/dcvs8cq0ll4hcxc4x3mlcf24y1cw4ckm-direnv-2.15.2")
  exit-status: 2 term-signal: #f stop-signal: #f] 869e80>)'.


I've tried to read the rest of the package definition, but as I'm still
attending Guile 1-0-1, that didn't help much!

I would very much appreciate it if someone could point out my mistake!

Regards,

-- 
Tanguy