From d243f1f8feac1241a6d5be71964e9b9df5d06aa2 Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Fri, 25 Apr 2014 17:29:59 +0200
Subject: [PATCH] configure: check if getaddrinfo() is available

This allows disabling IPv6 support and keeping getaddrinfo().
---
 configure  | 6 ++++++
 nameserv.c | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 7d91445..db02242 100755
--- a/configure
+++ b/configure
@@ -413,6 +413,12 @@ then
   fi
 fi
 
+if test_code 'getaddrinfo()' 'sys/types.h sys/socket.h netdb.h' '' '' \
+  'return getaddrinfo(0, 0, 0, 0);'
+then
+  add_def HAVE_GETADDRINFO
+fi
+
 timepps_h=""
 if [ $feat_pps = "1" ]; then
   if test_code '<sys/timepps.h>' 'sys/timepps.h' '' '' ''; then
diff --git a/nameserv.c b/nameserv.c
index 328212b..f8a4b63 100644
--- a/nameserv.c
+++ b/nameserv.c
@@ -46,7 +46,7 @@ DNS_SetAddressFamily(int family)
 DNS_Status 
 DNS_Name2IPAddress(const char *name, IPAddr *addr)
 {
-#ifdef HAVE_IPV6
+#ifdef HAVE_GETADDRINFO
   struct addrinfo hints, *res, *ai;
   int result;