[gssdp] Include sys/socket.h

[Jens Georg <jensgeorg src gnome org>]

commit c12b9f3764a46a4ea52a85a8dc4507585a9b8e21
Author: Jens Georg <mail jensge org>
Date:   Sun May 4 13:33:44 2014 +0200

    Include sys/socket.h
    
    Seems to be necessary on some BSDs
    
    Signed-off-by: Jens Georg <mail jensge org>

 libgssdp/gssdp-socket-source.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libgssdp/gssdp-socket-source.c b/libgssdp/gssdp-socket-source.c
index ee52f9d..2057c57 100644
--- a/libgssdp/gssdp-socket-source.c
+++ b/libgssdp/gssdp-socket-source.c
@@ -28,6 +28,7 @@
 #include <glib.h>
 
 #ifndef G_OS_WIN32
+#include <sys/socket.h>
 #include <arpa/inet.h>
 #include <net/if.h>
 #include <ifaddrs.h>