18/33: gnu: shepherd: Build fix for the Hurd.

[guix-commits]

janneke pushed a commit to branch wip-hurd
in repository guix.

commit ab4dbfd30c80ab8c194dcf47b55894cc1e117647
Author: Jan Nieuwenhuizen <address@hidden>
AuthorDate: Sat Mar 7 16:11:48 2020 +0100

    gnu: shepherd: Build fix for the Hurd.
    
    * gnu/packages/patches/shepherd-hurd.patch: New file.
    * gnu/local.mk (dist_patch_DATA): Add it.
    * gnu/packages/admin.scm (shepherd): Use it.
---
 gnu/local.mk                             |  1 +
 gnu/packages/admin.scm                   |  2 ++
 gnu/packages/patches/shepherd-hurd.patch | 36 ++++++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+)

diff --git a/gnu/local.mk b/gnu/local.mk
index c299847..b5bd7a5 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1407,6 +1407,7 @@ dist_patch_DATA =                                         
\
   %D%/packages/patches/seahorse-gkr-use-0-on-empty-flags.patch \
   %D%/packages/patches/seq24-rename-mutex.patch                        \
   %D%/packages/patches/sharutils-CVE-2018-1000097.patch                \
+  %D%/packages/patches/shepherd-hurd.patch                     \
   %D%/packages/patches/shishi-fix-libgcrypt-detection.patch    \
   %D%/packages/patches/slim-session.patch                      \
   %D%/packages/patches/slim-config.patch                       \
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index 993d378..2d0a127 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -74,6 +74,7 @@
   #:use-module (gnu packages file)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages readline)
+  #:use-module (gnu packages hurd)
   #:use-module (gnu packages libbsd)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages lua)
@@ -202,6 +203,7 @@ and provides a \"top-like\" mode (monitoring).")
               (method url-fetch)
               (uri (string-append "mirror://gnu/shepherd/shepherd-"
                                   version ".tar.gz"))
+              (patches (search-patches "shepherd-hurd.patch"))
               (sha256
                (base32
                 "1xn6mb5bh8bpfgdrh09ja31jk0ln7bmxbbf0vjcqxkkixs2wl6sk"))))
diff --git a/gnu/packages/patches/shepherd-hurd.patch 
b/gnu/packages/patches/shepherd-hurd.patch
new file mode 100644
index 0000000..035782b
--- /dev/null
+++ b/gnu/packages/patches/shepherd-hurd.patch
@@ -0,0 +1,36 @@
+From ac06193300aea17d6e6d1ad784585542815af94b Mon Sep 17 00:00:00 2001
+From: Jan Nieuwenhuizen <address@hidden>
+Date: Sat, 7 Mar 2020 16:04:27 +0100
+Subject: [PATCH] services: Support compilation on the Hurd.
+
+* modules/shepherd/system.scm.in (prctl): Catch compile-time error.
+---
+ modules/shepherd/system.scm.in | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/modules/shepherd/system.scm.in b/modules/shepherd/system.scm.in
+index 769404a..7def22d 100644
+--- a/modules/shepherd/system.scm.in
++++ b/modules/shepherd/system.scm.in
+@@ -1,6 +1,7 @@
+ ;; system.scm -- Low-level operating system interface.
+ ;; Copyright (C) 2013, 2014, 2016, 2018 Ludovic Courtès <address@hidden>
+ ;; Copyright (C) 2018 Carlo Zancanaro <address@hidden>
++;; Copyright (C) 2020 Jan (janneke) Nieuwenhuizen <address@hidden>
+ ;;
+ ;; This file is part of the GNU Shepherd.
+ ;;
+@@ -145,7 +146,9 @@ ctrlaltdel(8) and see kernel/reboot.c in Linux."
+ (define PR_SET_CHILD_SUBREAPER @PR_SET_CHILD_SUBREAPER@)
+ 
+ (define prctl
+-  (if (dynamic-func "prctl" (dynamic-link))
++  (if (catch #t
++        (lambda _ (dynamic-func "prctl" (dynamic-link)))
++        (const #f))
+       (let ((proc (syscall->procedure long "prctl" (list int int))))
+         (lambda (process operation)
+           "Perform an operation on the given process"
+-- 
+2.24.0
+