Hi,

Compilation on the Hurd fails with

--8<---------------cut here---------------start------------->8---
  GUILEC   modules/shepherd.go
;;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0
;;;       or pass the --no-auto-compile argument to disable.
;;; compiling /gnu/store/wq6m0l53hffnf9qa9hwdjqskcw54amf6-guile-2.2.6/bin/guild
;;; WARNING: compilation of /gnu/store/wq6m0l53hffnf9qa9hwdjqskcw54amf6-guile-2.2.6/bin/guild failed:
;;; failed to create path for auto-compiled file "/gnu/store/wq6m0l53hffnf9qa9hwdjqskcw54amf6-guile-2.2.6/bin/guild"
Backtrace:
In ice-9/boot-9.scm:
   222:29 19 (map1 _)
   222:29 18 (map1 _)
   222:29 17 (map1 _)
   222:29 16 (map1 _)
   222:29 15 (map1 _)
   222:29 14 (map1 (((shepherd comm)) ((shepherd config)) ((# #))))
   222:29 13 (map1 (((shepherd config)) ((shepherd system))))
   222:17 12 (map1 (((shepherd system))))
  2800:17 11 (resolve-interface (shepherd system) #:select _ #:hide _ ?)
In ice-9/threads.scm:
    390:8 10 (_ _)
In ice-9/boot-9.scm:
  2726:13  9 (_)
In ice-9/threads.scm:
    390:8  8 (_ _)
In ice-9/boot-9.scm:
  2994:20  7 (_)
   2312:4  6 (save-module-excursion #<procedure 3de2b88 at ice-9/boo?>)
  3014:26  5 (_)
In unknown file:
           4 (primitive-load-path "shepherd/system" #<procedure 3d7e?>)
In ice-9/eval.scm:
   626:19  3 (_ #<directory (shepherd system) 3dd8230>)
   245:16  2 (_ #<directory (shepherd system) 3dd8230>)
In unknown file:
           1 (dynamic-func "prctl" #<dynamic-object #f>)
In ice-9/boot-9.scm:
   752:25  0 (dispatch-exception _ _ _)

ice-9/boot-9.scm:752:25: In procedure dispatch-exception:
In procedure dynamic-pointer: Symbol not found: prctl
Makefile:2070: recipe for target 'modules/shepherd.go' failed
--8<---------------cut here---------------end--------------->8---

Find patch attached.

Greetings,
janneke