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memfd: fix configure test

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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>
This commit is contained in:
Paolo Bonzini 2017-11-28 11:51:27 +01:00
parent 200780a3a3
commit 75e5b70e6b
2 changed files with 2 additions and 4 deletions
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2
configure vendored
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@ -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)
{

4
util/memfd.c
View File

@ -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>