From 2b23a1313f501423aecbe4ad4a988a9f6f832f1f Mon Sep 17 00:00:00 2001
From: Patrick Havelange <patrick.havelange@essensium.com>
Date: Tue, 22 Oct 2019 12:29:54 +0200
Subject: [PATCH 1/1] syscall_wrappers: rename internal memfd_create to
 memfd_create_lxc

In case the internal memfd_create has to be used, make sure we don't
clash with the already existing memfd_create function from glibc.

This can happen if this glibc function is a stub. In this case, at
./configure time, the test for this function will return false, however
the declaration of that function is still available. This leads to
compilation errors.

Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com>
---
 src/lxc/syscall_wrappers.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lxc/syscall_wrappers.h b/src/lxc/syscall_wrappers.h
index 42d94db..bddf01b 100644
--- a/src/lxc/syscall_wrappers.h
+++ b/src/lxc/syscall_wrappers.h
@@ -59,7 +59,7 @@ static inline long __keyctl(int cmd, unsigned long arg2, unsigned long arg3,
 #endif
 
 #ifndef HAVE_MEMFD_CREATE
-static inline int memfd_create(const char *name, unsigned int flags) {
+static inline int memfd_create_lxc(const char *name, unsigned int flags) {
 	#ifndef __NR_memfd_create
 		#if defined __i386__
 			#define __NR_memfd_create 356
@@ -98,6 +98,7 @@ static inline int memfd_create(const char *name, unsigned int flags) {
 	return -1;
 	#endif
 }
+#define memfd_create memfd_create_lxc
 #else
 extern int memfd_create(const char *name, unsigned int flags);
 #endif
-- 
2.20.1