[PATCH] Fix build with kernel 3.4 headers.

From: Vinson Lee <[email protected]>

PR_SET_CHILD_SUBREAPER was added in kernel 3.4 but PR_SET_NO_NEW_PRIVS,
PR_GET_NO_NEW_PRIVS, and PR_GET_TID_ADDRESS were added in kernel 3.5.

  CC	syscalls/prctl.o
syscalls/prctl.c:33: error: ‘PR_SET_NO_NEW_PRIVS’ undeclared here (not in a function)
syscalls/prctl.c:34: error: ‘PR_GET_NO_NEW_PRIVS’ undeclared here (not in a function)
syscalls/prctl.c:34: error: ‘PR_GET_TID_ADDRESS’ undeclared here (not in a function)

Signed-off-by: Vinson Lee <[email protected]>
---
 include/compat.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/compat.h b/include/compat.h
index 5451870..0e0f30e 100644
--- a/include/compat.h
+++ b/include/compat.h
@@ -275,6 +275,9 @@ enum {
 #ifndef PR_SET_CHILD_SUBREAPER
 #define PR_SET_CHILD_SUBREAPER  36
 #define PR_GET_CHILD_SUBREAPER  37
+#endif
+
+#ifndef PR_SET_NO_NEW_PRIVS
 #define PR_SET_NO_NEW_PRIVS     38
 #define PR_GET_NO_NEW_PRIVS     39
 #define PR_GET_TID_ADDRESS      40
-- 
1.9.1