From b16d138a0af44740894ecd42eca4d71fd74aea1a Mon Sep 17 00:00:00 2001
From: David Thompson <davet@gnu.org>
Date: Thu, 25 Jun 2015 08:29:26 -0400
Subject: build: syscalls: Add unmount flags.

* guix/build/syscalls.scm (MNT_FORCE, MNT_DETACH, MNT_EXPIRE)
  (UMOUNT_NOFOLLOW): New variables.
---
 guix/build/syscalls.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index ec1ce89016..6d3151051b 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -34,6 +34,10 @@ (define-module (guix build syscalls)
             MS_BIND
             MS_MOVE
             MS_STRICTATIME
+            MNT_FORCE
+            MNT_DETACH
+            MNT_EXPIRE
+            UMOUNT_NOFOLLOW
             restart-on-EINTR
             mount
             umount
@@ -150,6 +154,11 @@ (define MS_BIND            4096)
 (define MS_MOVE            8192)
 (define MS_STRICTATIME 16777216)
 
+(define MNT_FORCE       1)
+(define MNT_DETACH      2)
+(define MNT_EXPIRE      4)
+(define UMOUNT_NOFOLLOW 8)
+
 (define mount
   (let* ((ptr  (dynamic-func "mount" (dynamic-link)))
          (proc (pointer->procedure int ptr `(* * * ,unsigned-long *))))
-- 
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