build: work around cygwin header bug

A bug in Cygwin [1] and poor error messages from gcc [2] lead
to this confusing compilation error:

qemu/qemu_monitor.c:418:9: error: passing argument 2 of 'sendmsg' from incmpatible pointer type
/usr/include/sys/socket.h:42:11: note: expected 'const struct msghdr *' but argument is of type 'struct msghdr *'

[1] http://cygwin.com/ml/cygwin/2013-05/msg00451.html
[2] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57475

* src/qemu/qemu_monitor.c (includes): Include <sys/socket.h>
before <sys/un.h>.

Signed-off-by: Eric Blake <eblake@redhat.com>

diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 4e35f790a0c89c0f25fc30ec034683084881beb2..ad326c521fe474e3cc635cec82df0289fcd72ee1 100644 (file)
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -24,6 +24,7 @@
 #include <config.h>
 
 #include <poll.h>
+#include <sys/socket.h>
 #include <sys/un.h>
 #include <unistd.h>
 #include <fcntl.h>