[libvirt] [PATCH 1/3] Fix bridge.c warnings with gcc-4.4

[Mark McLoughlin <markmc@xxxxxxxxxx>]

 bridge.c: In function 'brSetInetAddr':
 bridge.c:665: error: dereferencing pointer '({anonymous})' does break strict-aliasing rules
 bridge.c:665: note: initialized from here
 bridge.c:666: error: dereferencing pointer '({anonymous})' does break strict-aliasing rules
 bridge.c:666: note: initialized from here

Signed-off-by: Mark McLoughlin <markmc@xxxxxxxxxx>
---
 src/bridge.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/bridge.c b/src/bridge.c
index 990a567..fc11429 100644
--- a/src/bridge.c
+++ b/src/bridge.c
@@ -642,6 +642,10 @@ brSetInetAddr(brControl *ctl,
               int cmd,
               const char *addr)
 {
+    union {
+        struct sockaddr sa;
+        struct sockaddr_in sa_in;
+    } s;
     struct ifreq ifr;
     struct in_addr inaddr;
     int len, ret;
@@ -662,8 +666,10 @@ brSetInetAddr(brControl *ctl,
     else if (ret == 0)
         return EINVAL;
 
-    ((struct sockaddr_in *)&ifr.ifr_data)->sin_family = AF_INET;
-    ((struct sockaddr_in *)&ifr.ifr_data)->sin_addr   = inaddr;
+    s.sa_in.sin_family = AF_INET;
+    s.sa_in.sin_addr   = inaddr;
+
+    ifr.ifr_addr = s.sa;
 
     if (ioctl(ctl->fd, cmd, &ifr) < 0)
         return errno;
-- 
1.6.0.6

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