--- nix/libstore/build.cc	2013-08-29 15:35:16.289717070 +0200
+++ nix/libstore/build_fix.cc	2013-08-29 15:35:29.109889561 +0200
@@ -43,6 +43,20 @@
 #include <sched.h>
 #endif
 
+#ifndef CLONE_NEWPID
+#define CLONE_NEWPID            0x20000000      /* New pid namespace */
+#endif
+#ifndef CLONE_NEWNET
+#define CLONE_NEWNET            0x40000000      /* New network namespace */
+#endif 
+#ifndef CLONE_NEWIPC
+#define CLONE_NEWIPC            0x08000000      /* New ipcs */
+#endif 
+#ifndef CLONE_NEWUTS
+#define CLONE_NEWUTS            0x04000000      /* New utsname group? */
+#endif 
+
+
 /* In GNU libc 2.11, <sys/mount.h> does not define `MS_PRIVATE', but
    <linux/fs.h> does.  */
 #if !defined MS_PRIVATE && defined HAVE_LINUX_FS_H