From 2ab442623e689532910b34ff0dbbc2167da02330 Mon Sep 17 00:00:00 2001
From: Samuel Holland <samuel@sholland.org>
Date: Wed, 11 Jan 2017 17:39:07 -0600
Subject: [PATCH] fix musl compatibility (missing function prototypes)

inet_net_pton is already compiled, but no prototype is provided.
res_hnok is provided by the compatibility layer in libasr.

These fixes avoid warnings about implicit function declaration.

Fixes #758
---
 configure.ac                    | 1 +
 openbsd-compat/openbsd-compat.h | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/configure.ac b/configure.ac
index 42e092f..e27c514 100644
--- a/configure.ac
+++ b/configure.ac
@@ -594,6 +594,7 @@ AC_CHECK_FUNCS([ \
 	pledge \
 	pw_dup \
 	reallocarray \
+	res_hnok \
 	setenv \
 	setlinebuf \
 	setproctitle \
diff --git a/openbsd-compat/openbsd-compat.h b/openbsd-compat/openbsd-compat.h
index a51385b..5d2e2c2 100644
--- a/openbsd-compat/openbsd-compat.h
+++ b/openbsd-compat/openbsd-compat.h
@@ -208,10 +208,18 @@ void *reallocarray(void *, size_t, size_t);
 void errc(int, int, const char *, ...);
 #endif
 
+#ifndef HAVE_INET_NET_PTON
+int inet_net_pton(int, const char *, void *, size_t);
+#endif
+
 #ifndef HAVE_PLEDGE
 #define pledge(promises, paths) 0
 #endif
 
+#ifndef HAVE_RES_HNOK
+int res_hnok(const char *);
+#endif
+
 #if !HAVE_DECL_AF_LOCAL
 #define AF_LOCAL AF_UNIX
 #endif