From 2b70a8e7c98adebdac1e546e17ee1d909b4e5989 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Fri, 12 Dec 2008 13:41:36 +0000
Subject: * Detect whether unshare() is available.

---
 src/libstore/build.cc | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index d4c5b81d3f..8d06a66f60 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -34,13 +34,10 @@
 #include <sys/mount.h>
 #endif
 #if HAVE_SCHED_H
-#if !defined _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
 #include <sched.h>
 #endif
 
-#define CHROOT_ENABLED HAVE_CHROOT && HAVE_SYS_MOUNT_H && defined(MS_BIND) && defined(CLONE_NEWNS)
+#define CHROOT_ENABLED HAVE_CHROOT && HAVE_UNSHARE && HAVE_SYS_MOUNT_H && defined(MS_BIND) && defined(CLONE_NEWNS)
 
 
 namespace nix {
-- 
cgit 1.4.1