From 5363abb776e71de10545ac96112ff6e5cd4c1559 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Thu, 4 Jul 2013 22:46:26 +0200
Subject: daemon: Make argp usage compatible with libc on GNU/Hurd.

* nix/nix-daemon/guix-daemon.cc (parse_opt): Cast return value to
  `error_t' for the sake of GNU/Hurd.
  Reported by Matthew Lien <bluet@bluet.org> at
  <http://lists.gnu.org/archive/html/bug-guix/2013-07/msg00002.html>.
---
 nix/nix-daemon/guix-daemon.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'nix')

diff --git a/nix/nix-daemon/guix-daemon.cc b/nix/nix-daemon/guix-daemon.cc
index 5f0710c256..e2c30e75a8 100644
--- a/nix/nix-daemon/guix-daemon.cc
+++ b/nix/nix-daemon/guix-daemon.cc
@@ -171,10 +171,10 @@ parse_opt (int key, char *arg, struct argp_state *state)
       settings.thisSystem = arg;
       break;
     default:
-      return ARGP_ERR_UNKNOWN;
+      return (error_t) ARGP_ERR_UNKNOWN;
     }
 
-  return 0;
+  return (error_t) 0;
 }
 
 /* Argument parsing.  */
-- 
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