[glib] Declare res_init() for builds against Android's Bionic

[Sebastian Dröge <sdroege src gnome org>]

commit 25fa94eb82a8b55fd9279f5faa67c02c4738b8d8
Author: Sebastian Dröge <sebastian droege collabora co uk>
Date:   Mon May 6 16:06:48 2013 +0200

    Declare res_init() for builds against Android's Bionic
    
    res_init() exists in the C library here and as such is detected
    by configure, but it is not declared in any header.

 gio/gresolver.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gio/gresolver.c b/gio/gresolver.c
index 26d334a..6aad517 100644
--- a/gio/gresolver.c
+++ b/gio/gresolver.c
@@ -232,6 +232,10 @@ g_resolver_set_default (GResolver *resolver)
   default_resolver = g_object_ref (resolver);
 }
 
+/* Bionic has res_init() but it's not in any header */
+#ifdef __BIONIC__
+int res_init (void);
+#endif
 
 static void
 g_resolver_maybe_reload (GResolver *resolver)