(trunk) un-remove the conditional DHT compiling for now for reasons discussed @ http://lists.opensuse.org/opensuse-gnome/2009-08/msg00033.html. I'll re-remove it for 1.80. :)

configure.ac

@@ -203,8 +203,20 @@ dnl ----------------------------------------------------------------------------
 dnl
 dnl  dht
 
-DHT_CFLAGS="-I\$(top_srcdir)/third-party/dht"
-DHT_LIBS="\$(top_builddir)/third-party/dht/libdht.a"
+
+AC_ARG_ENABLE([dht], 
+              AS_HELP_STRING([--disable-dht],[omit DHT support]), 
+              [enable_dht=${enableval}], 
+              [enable_dht=yes]) 
+if test "x$enable_dht" = "xno" ; then 
+    AC_DEFINE([WITHOUT_DHT], 1) 
+    DHT_CFLAGS=""
+    DHT_LIBS=""
+else
+    DHT_CFLAGS="-I\$(top_srcdir)/third-party/dht"
+    DHT_LIBS="\$(top_builddir)/third-party/dht/libdht.a"
+fi
+AM_CONDITIONAL(DHT, test "x$enable_dht" = "xyes") 
 AC_SUBST(DHT_CFLAGS)
 AC_SUBST(DHT_LIBS)
 
@@ -415,6 +427,7 @@ Configuration:
         Source code location:          ${srcdir}
         Compiler:                      ${CXX}
         System or bundled libevent:    ${libevent_source}
+        DHT support:                   ${enable_dht}
 
         Build Mac client:              ${build_mac}
         Build GTK+ client:             ${build_gtk}

libtransmission/session.c

@@ -880,7 +880,11 @@ tr_sessionInitImpl( void * vdata )
 
     if( session->isDHTEnabled )
     {
+#ifdef WITHOUT_DHT
+        tr_inf( "DHT disabled by packager." );
+#else
         tr_dhtInit( session, &session->public_ipv4->addr );
+#endif
     }
 }
 
@@ -1641,7 +1645,11 @@ tr_sessionIsPexEnabled( const tr_session * session )
 tr_bool
 tr_sessionAllowsDHT( const tr_session * session UNUSED )
 {
+#ifdef WITHOUT_DHT
+    return 0;
+#else
     return tr_sessionIsDHTEnabled( session );
+#endif
 }
 
 tr_bool

libtransmission/tr-dht.c

@@ -50,6 +50,25 @@ THE SOFTWARE.
 #include "utils.h"
 #include "version.h"
 
+#ifdef WITHOUT_DHT
+
+  /* These are the stubs for when we're building without DHT support */
+  int tr_dhtInit( tr_session * session UNUSED ) { return TR_DHT_STOPPED; }
+  void tr_dhtUninit( tr_session * session UNUSED ) { }
+  tr_bool tr_dhtEnabled( const tr_session * session UNUSED ) { return FALSE; }
+  tr_port tr_dhtPort ( const tr_session * sesssion UNUSED ) { return 0; }
+  int tr_dhtStatus( tr_session * session     UNUSED,
+                    int        * setmeCount  UNUSED ) { return TR_DHT_STOPPED; }
+  int tr_dhtAddNode( tr_session * session    UNUSED,
+                     tr_address * addr       UNUSED,
+                     tr_port      port       UNUSED,
+                     tr_bool      bootstrap  UNUSED ) { return 0; }
+  int tr_dhtAnnounce( tr_torrent * session UNUSED,
+                      tr_bool announce UNUSED ) { return -1; }
+
+
+#else
+
 static int dht_socket;
 static struct event dht_event;
 static tr_port dht_port;
@@ -439,3 +458,5 @@ dht_random_bytes( void * buf, size_t size )
     tr_cryptoRandBuf( buf, size );
     return size;
 }
+
+#endif

third-party/Makefile.am

@@ -1,4 +1,10 @@
-SUBDIRS = libnatpmp miniupnp libevent dht
+if DHT
+  DHT_DIR = dht
+else
+  DHT_DIR =
+endif
+
+SUBDIRS = libnatpmp miniupnp libevent $(DHT_DIR)
 
 EXTRA_DIST = \
   macosx-libevent-config.h \