[pygobject] [giounix] Make it possible to compile on glib 2.20

[Johan Dahlin <johan src gnome org>]

commit ec8d148eccbb3714093f21b595ea77ae4c7c3bce
Author: Johan Dahlin <johan gnome org>
Date:   Sun Jun 20 10:49:55 2010 -0300

    [giounix] Make it possible to compile on glib 2.20

 gio/unix.override |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gio/unix.override b/gio/unix.override
index fd691e8..aebc6fc 100644
--- a/gio/unix.override
+++ b/gio/unix.override
@@ -28,7 +28,9 @@ headers
 #include <gio/gunixinputstream.h>
 #include <gio/gunixmounts.h>
 #include <gio/gunixoutputstream.h>
+#define GIO_COMPILATION
 #include <gio/gunixconnection.h>
+#undef GIO_COMPILATION
 #include <gio/gunixfdmessage.h>
 #include <gio/gunixsocketaddress.h>