From af3ccd794643e37f8fd711b9d6c0ccf2f4d8bd3b Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Tue, 29 Jan 2019 20:13:12 +0000
Subject: [PATCH] Unix sk_namelookup: fix compile failure at -DNO_IPV6.

The variable 'strbuf *realhost' was only initialised in the branch of
the ifdefs where IPV6 is enabled, so at NO_IPV6, it's used
uninitialised, which in my usual build configuration means a compile
failure.
---
 unix/uxnet.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/unix/uxnet.c b/unix/uxnet.c
index 231686be..e01fea24 100644
--- a/unix/uxnet.c
+++ b/unix/uxnet.c
@@ -195,7 +195,7 @@ SockAddr *sk_namelookup(const char *host, char **canonicalname, int address_fami
     struct hostent *h = NULL;
     int n;
 #endif
-    strbuf *realhost;
+    strbuf *realhost = strbuf_new();
 
     /* Clear the structure and default to IPv4. */
     memset(ret, 0, sizeof(SockAddr));
@@ -225,7 +225,6 @@ SockAddr *sk_namelookup(const char *host, char **canonicalname, int address_fami
     }
     ret->superfamily = IP;
 
-    realhost = strbuf_new();
     if (ret->ais->ai_canonname != NULL)
 	strbuf_catf(realhost, "%s", ret->ais->ai_canonname);
     else