https://bugzilla.gnome.org/756477

fix build w/newer releases of bionic (android)

--- a/gio/gthreadedresolver.c
+++ b/gio/gthreadedresolver.c
@@ -263,7 +263,7 @@ lookup_by_address_finish (GResolver     *resolver,
 
 #if defined(G_OS_UNIX)
 
-#ifdef __BIONIC__
+#if defined __BIONIC__ && !defined BIND_4_COMPAT
 /* Copy from bionic/libc/private/arpa_nameser_compat.h
  * and bionic/libc/private/arpa_nameser.h */
 typedef struct {
