From 72a5628a34359c57aaf99463d8abc31403a8c8d1 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@intel.com>
Date: Tue, 22 May 2018 17:43:54 -0300
Subject: [PATCH] Suppress warning about MFD_CLOEXEC being redefined

glibc 2.27 #defined it as just "1U" instead of the kernel "0x0001U".
Same value, but because the tokens are different, this triggers a
warning.

Change-Id: I052407b777ec43f78378fffd153112449de8cf4f
Reviewed-by: Johan Helsing <johan.helsing@qt.io>
---
 src/plugins/platforms/wayland/qwaylandshmbackingstore.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/plugins/platforms/wayland/qwaylandshmbackingstore.cpp b/src/plugins/platforms/wayland/qwaylandshmbackingstore.cpp
index cbfdf51576e..54b0b798c5e 100644
--- a/src/plugins/platforms/wayland/qwaylandshmbackingstore.cpp
+++ b/src/plugins/platforms/wayland/qwaylandshmbackingstore.cpp
@@ -59,7 +59,9 @@
 #ifdef Q_OS_LINUX
 #  include <sys/syscall.h>
 // from linux/memfd.h:
-#  define MFD_CLOEXEC       0x0001U
+#  ifndef MFD_CLOEXEC
+#    define MFD_CLOEXEC     0x0001U
+#  endif
 #endif
 
 QT_BEGIN_NAMESPACE