!61 Enable werror for qemu and fix a building warning

Merge pull request !61 from FangYing/openEuler-20.03-LTS

migration-multifd-fix-potential-wrong-acception-orde.patch

@@ -274,10 +274,18 @@ index bd0eee79..a788ff0e 100644
  uint64_t ram_pagesize_summary(void);
  int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len);
 diff --git a/migration/socket.c b/migration/socket.c
-index 98efdc02..bc0960c6 100644
+index 98efdc02..093b956b 100644
 --- a/migration/socket.c
 +++ b/migration/socket.c
-@@ -181,6 +181,12 @@ static void socket_start_incoming_migration(SocketAddress *saddr,
+@@ -22,6 +22,7 @@
+ #include "channel.h"
+ #include "socket.h"
+ #include "migration.h"
++#include "ram.h"
+ #include "qemu-file.h"
+ #include "io/channel-socket.h"
+ #include "io/net-listener.h"
+@@ -181,6 +182,12 @@ static void socket_start_incoming_migration(SocketAddress *saddr,
 
      qio_net_listener_set_name(listener, "migration-socket-listener");
 

qemu.spec

@@ -1,6 +1,6 @@
 Name: qemu
 Version: 4.1.0
-Release: 15
+Release: 16
 Epoch: 2
 Summary: QEMU is a generic and open source machine emulator and virtualizer
 License: GPLv2 and BSD and MIT and CC-BY
@@ -308,7 +308,6 @@ buildldflags="VL_LDFLAGS=-Wl,--build-id"
     --with-pkgversion=%{name}-%{version}-%{release} \
     --python=/usr/bin/python3 \
     --disable-strip \
-    --disable-werror  \
     --disable-slirp  \
     --enable-gtk \
     --enable-docs \