[PATCH] openssl: fix build without IPv6 support

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 crypto/bio/bss_dgram.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

Index: crypto/bio/bss_dgram.c
===================================================================
--- crypto/bio/bss_dgram.c
+++ crypto/bio/bss_dgram.c
@@ -59,6 +59,12 @@
 
 #include <stdio.h>
 #include <errno.h>
+#include <features.h>
+
+#if defined(__UCLIBC__) && !defined (__UCLIBC_HAS_IPV6__)
+#define NO_IPV6
+#endif
+
 #define USE_SOCKETS
 #include "cryptlib.h"
 
@@ -425,12 +431,14 @@
                                   &sockopt_val, sizeof(sockopt_val))) < 0)
                 perror("setsockopt");
             break;
+#ifndef NO_IPV6
         case AF_INET6:
             sockopt_val = IPV6_PMTUDISC_DO;
             if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER,
                                   &sockopt_val, sizeof(sockopt_val))) < 0)
                 perror("setsockopt");
             break;
+#endif
         default:
             ret = -1;
             break;
@@ -463,6 +471,7 @@
                 ret = data->mtu;
             }
             break;
+#ifndef NO_IPV6
         case AF_INET6:
             if ((ret =
                  getsockopt(b->num, IPPROTO_IPV6, IPV6_MTU,
@@ -478,6 +487,7 @@
                 ret = data->mtu;
             }
             break;
+#endif
         default:
             ret = 0;
             break;