BIND 10 trac1238, updated. 936511f6e114f26bf86497466a7f61ef467bf5ad [1238] Compilation fix on non-Linux systems.

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       via  936511f6e114f26bf86497466a7f61ef467bf5ad (commit)
      from  5a2d958780a4a671cd8df9080d99ff95dd16772d (commit)

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- Log -----------------------------------------------------------------
commit 936511f6e114f26bf86497466a7f61ef467bf5ad
Author: Tomek Mrugalski <tomasz at isc.org>
Date:   Mon Nov 28 01:42:44 2011 +0800

    [1238] Compilation fix on non-Linux systems.

-----------------------------------------------------------------------

Summary of changes:
 src/bin/dhcp6/iface_mgr.cc |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

-----------------------------------------------------------------------
diff --git a/src/bin/dhcp6/iface_mgr.cc b/src/bin/dhcp6/iface_mgr.cc
index ee99f2e..f1eb834 100644
--- a/src/bin/dhcp6/iface_mgr.cc
+++ b/src/bin/dhcp6/iface_mgr.cc
@@ -323,13 +323,16 @@ IfaceMgr::openSocket4(Iface& iface, const IOAddress& addr, int port) {
         close(sock);
         isc_throw(Unexpected, "setsockopt: IP_RECVPKTINFO failed.")
     }
-#else
+#elif defined(IP_PKTINFO)
     /* RFC2292 - an old way */
     if (setsockopt(sock, IPPROTO_IP, IP_PKTINFO,
                    &flag, sizeof(flag)) != 0) {
         close(sock);
         isc_throw(Unexpected, "setsockopt: IP_PKTINFO: failed.");
     }
+#else
+    // "Neither IP_RECVPKTINFO nor IP_PKTINFO defined. Cannot continue"
+    flag = 1; // just to avoid compilation warnings about unused flag variable
 #endif