build: fix cygwin build in virnetdev

On cygwin, compilation failed because SIOCSIFHWADDR is undefined.

* src/util/virnetdev.c (virNetDevSetMAC): Cygwin can query but not
set mac address.

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

diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c
index 0a3e17de2637c894d3c5e2116db92cf774238f8e..8013f233462d47acd4410a6b9462aea292b43efb 100644 (file)
--- a/src/util/virnetdev.c
+++ b/src/util/virnetdev.c
@@ -132,7 +132,8 @@ int virNetDevExists(const char *ifname)
 #endif
 
 
-#if defined(SIOCGIFHWADDR) && defined(HAVE_STRUCT_IFREQ)
+#if defined(SIOCGIFHWADDR) && defined(SIOCSIFHWADDR) && \
+    defined(HAVE_STRUCT_IFREQ)
 /**
  * virNetDevSetMAC:
  * @ifname: interface name to set MTU for