Fix some compile failures on Solaris 9 because it doesn't have V6ONLY.

This commit was SVN r15237.

ompi/mca/btl/tcp/btl_tcp_component.c

@@ -530,6 +530,7 @@ static int mca_btl_tcp_component_create_listen(uint16_t af_family)
         addrlen = res->ai_addrlen;
         freeaddrinfo (res);
 
+#ifdef IPV6_V6ONLY
         /* in case of AF_INET6, disable v4-mapped addresses */
         if (AF_INET6 == af_family) {
             int flg = 0;
@@ -539,6 +540,7 @@ static int mca_btl_tcp_component_create_listen(uint16_t af_family)
                     "mca_btl_tcp_create_listen: unable to disable v4-mapped addresses\n");
             }
         }
+#endif /* IPV6_V6ONLY */
     }
 #else
     inaddr.sin_family = AF_INET;

orte/mca/oob/tcp/oob_tcp.c

@@ -524,6 +524,7 @@ static int mca_oob_tcp_create_listen(int *target_sd, uint16_t af_family)
         addrlen = res->ai_addrlen;
         freeaddrinfo (res);
         
+#ifdef IPV6_V6ONLY
         /* in case of AF_INET6, disable v4-mapped addresses */
         if (AF_INET6 == af_family) {
             int flg = 0;
@@ -533,6 +534,7 @@ static int mca_oob_tcp_create_listen(int *target_sd, uint16_t af_family)
                             "mca_oob_tcp_create_listen: unable to disable v4-mapped addresses\n");
             }
         }
+#endif /* IPV6_V6ONLY */
     }
 #else
     inaddr.sin_family = AF_INET;