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From 75e5b70e6b5dcc4f2219992d7cffa462aa406af0 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 28 Nov 2017 11:51:27 +0100
Subject: [PATCH] memfd: fix configure test
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit
Recent glibc added memfd_create in sys/mman.h. This conflicts with
the definition in util/memfd.c:
/builddir/build/BUILD/qemu-2.11.0-rc1/util/memfd.c:40:12: error: static declaration of memfd_create follows non-static declaration
Fix the configure test, and remove the sys/memfd.h inclusion since the
file actually does not exist---it is a typo in the memfd_create(2) man
page.
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
configure | 2 +-
util/memfd.c | 4 +---
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/configure b/configure
index 9c8aa5a..99ccc17 100755
--- a/configure
+++ b/configure
@@ -3923,7 +3923,7 @@ fi
# check if memfd is supported
memfd=no
cat > $TMPC << EOF
-#include <sys/memfd.h>
+#include <sys/mman.h>
int main(void)
{
diff --git a/util/memfd.c b/util/memfd.c
index 4571d1a..412e94a 100644
--- a/util/memfd.c
+++ b/util/memfd.c
@@ -31,9 +31,7 @@
#include "qemu/memfd.h"
-#ifdef CONFIG_MEMFD
-#include <sys/memfd.h>
-#elif defined CONFIG_LINUX
+#if defined CONFIG_LINUX && !defined CONFIG_MEMFD
#include <sys/syscall.h>
#include <asm/unistd.h>
--
1.8.3.1
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