priv: declare `res_init()` for builds against Android's Bionic

`res_init()` is present in the C library (as detected by configure) but
no declared in any header.

diff --git a/src/daemon/priv.c b/src/daemon/priv.c
index 703489f0ccc229cb6d805d1d3f9901689b9d5def..a09e4a0c2914c6963b6891e2ad7030d2170c1ab0 100644 (file)
--- a/src/daemon/priv.c
+++ b/src/daemon/priv.c
@@ -62,6 +62,11 @@
 #  include <resolv.h>
 #endif
 
+/* Bionic has res_init() but it's not in any header */
+#if defined HAVE_RES_INIT && defined __BIONIC__
+int res_init (void);
+#endif
+
 static int monitored = -1;             /* Child */
 
 /* Proxies */