Merge remote-tracking branch 'stefanha/trivial-patches' into staging

* stefanha/trivial-patches:
  make: fix clean rule by removing build file in qom/
  configure: Link qga against UST tracing related libraries
  configure: Link QEMU against 'liburcu-bp'
  main-loop: make qemu_event_handle static
  block/curl: Replace usleep by g_usleep
  qtest: Add missing GCC_FMT_ATTR
  w32: Undefine error constants before their redefinition
  configure: fix mingw32 libs_qga typo

Makefile

@@ -217,6 +217,7 @@ clean:
 	rm -f *.o *.d *.a *.lo $(TOOLS) $(HELPERS-y) qemu-ga TAGS cscope.* *.pod *~ */*~
 	rm -Rf .libs
 	rm -f slirp/*.o slirp/*.d audio/*.o audio/*.d block/*.o block/*.d net/*.o net/*.d fsdev/*.o fsdev/*.d ui/*.o ui/*.d qapi/*.o qapi/*.d qga/*.o qga/*.d
+	rm -f qom/*.o qom/*.d
 	rm -f qemu-img-cmds.h
 	rm -f trace/*.o trace/*.d
 	rm -f trace.c trace.h trace.c-timestamp trace.h-timestamp

block/curl.c

@@ -282,7 +282,7 @@ static CURLState *curl_init_state(BDRVCURLState *s)
             break;
         }
         if (!state) {
-            usleep(100);
+            g_usleep(100);
             curl_multi_do(s);
         }
     } while(!state);

configure

@@ -526,7 +526,7 @@ EOF
   bindir="\${prefix}"
   sysconfdir="\${prefix}"
   confsuffix=""
-  libs_qga="-lws2_32 -lwinmm -lpowrprof $lib_qga"
+  libs_qga="-lws2_32 -lwinmm -lpowrprof $libs_qga"
 fi
 
 werror=""
@@ -2680,7 +2680,8 @@ if test "$trace_backend" = "ust"; then
 int main(void) { return 0; }
 EOF
   if compile_prog "" "" ; then
-    LIBS="-lust $LIBS"
+    LIBS="-lust -lurcu-bp $LIBS"
+    libs_qga="-lust -lurcu-bp $libs_qga"
   else
     echo
     echo "Error: Trace backend 'ust' missing libust header files"

main-loop.c

@@ -164,7 +164,7 @@ static int qemu_signal_init(void)
 
 #else /* _WIN32 */
 
-HANDLE qemu_event_handle = NULL;
+static HANDLE qemu_event_handle = NULL;
 
 static void dummy_event_handler(void *opaque)
 {

qemu_socket.h

@@ -8,7 +8,9 @@
 #include <ws2tcpip.h>
 
 #define socket_error() WSAGetLastError()
+#undef EWOULDBLOCK
 #undef EINTR
+#undef EINPROGRESS
 #define EWOULDBLOCK WSAEWOULDBLOCK
 #define EINTR       WSAEINTR
 #define EINPROGRESS WSAEINPROGRESS

qtest.c

@@ -156,7 +156,8 @@ static void qtest_send_prefix(CharDriverState *chr)
             tv.tv_sec, tv.tv_usec);
 }
 
-static void qtest_send(CharDriverState *chr, const char *fmt, ...)
+static void GCC_FMT_ATTR(2, 3) qtest_send(CharDriverState *chr,
+                                          const char *fmt, ...)
 {
     va_list ap;
     char buffer[1024];