public abstract IntPtr client_log (IntPtr apr_array_header_t_targets,
		                                   ref Rev rev_start, ref Rev rev_end,
		                                   int discover_changed_paths,
		                                   int strict_node_history,
		                                   svn_log_message_receiver_t receiver,
		                                   IntPtr receiver_baton,
		                                   IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_ls (out IntPtr dirents, string path_or_url,
		                                                              ref Rev revision, int recurse, IntPtr ctx,
		                                                              IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_propget (out IntPtr value, string name, string target,
		                                                                    ref Rev revision,
		                                                                    [MarshalAs (UnmanagedType.Bool)] bool recurse,
		                                                                    IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_diff (IntPtr diff_options, string path1,
		                                                                ref Rev revision1, string path2,
		                                                                ref Rev revision2, [MarshalAs (UnmanagedType.Bool)] bool recurse,
		                                                                [MarshalAs (UnmanagedType.Bool)] bool ignore_ancestry,
		                                                                [MarshalAs (UnmanagedType.Bool)] bool no_diff_deleted,
		                                                                IntPtr outfile,
		                                                                IntPtr errfile,
		                                                                IntPtr ctx,
		                                                                IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_move (ref IntPtr commit_info_p, string srcPath, ref Rev rev,
		                                                                string destPath, [MarshalAs (UnmanagedType.Bool)] bool force,
		                                                                IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_cat2 (IntPtr stream, string path_or_url,
		                                                                ref Rev peg_revision,
		                                                                ref Rev revision,
		                                                                IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_status2 (IntPtr svn_revnum_t, string path, ref Rev revision,
		                                                                   svn_wc_status_func2_t status_func, IntPtr status_baton,
		                                                                   [MarshalAs (UnmanagedType.Bool)] bool recurse,
		                                                                   [MarshalAs (UnmanagedType.Bool)] bool get_all,
		                                                                   [MarshalAs (UnmanagedType.Bool)] bool update,
		                                                                   [MarshalAs (UnmanagedType.Bool)] bool no_ignore,
		                                                                   [MarshalAs (UnmanagedType.Bool)] bool ignore_externals,
		                                                                   IntPtr ctx, IntPtr pool);

		public override IntPtr client_blame (string path, ref Rev rev_start, ref Rev rev_end, svn_client_blame_receiver_t receiver, System.IntPtr baton, System.IntPtr ctx, System.IntPtr pool)
		{
			return svn_client_blame (path, ref rev_start, ref rev_end, receiver, baton, ctx, pool);
		}

		public override IntPtr client_ls (out IntPtr dirents, string path_or_url,
		                                  ref Rev revision, bool recurse, IntPtr ctx,
		                                  IntPtr pool)
		{
			return svn_client_ls (out dirents, path_or_url, ref revision, recurse, ctx, pool);
		}

		[DllImport(svnclientlib)] static extern IntPtr svn_client_prop_get (out IntPtr value, string name, string target, ref Rev revision, int recurse, IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_diff (IntPtr diff_options, string path1,
		                                                                ref Rev revision1, string path2,
		                                                                ref Rev revision2, int recurse,
		                                                                int ignore_ancestry,
		                                                                int no_diff_deleted,
		                                                                IntPtr outfile,
		                                                                IntPtr errfile,
		                                                                IntPtr ctx,
		                                                                IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_checkout (IntPtr result_rev, string url, string path, ref Rev rev, 
		                                                                    int recurse, IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_move (ref IntPtr commit_info_p, string srcPath, ref Rev rev,
		                                                                string destPath, int force, IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_update (IntPtr result_rev, string path, ref Rev revision,
		                                                                  int recurse, IntPtr ctx, IntPtr pool);

		[DllImport(svnclientlib)] static extern IntPtr svn_client_status (IntPtr result_rev, string path, ref Rev revision,
		                                                                  svn_wc_status_func_t status_func, IntPtr status_baton,
		                                                                  int descend, int get_all, int update, int no_ignore,
		                                                                  IntPtr ctx, IntPtr pool);

		public override IntPtr client_merge_peg2 (
		                          string source,
		                          ref Rev revision1,
		                          ref Rev revision2,
		                          ref Rev peg_revision,
		                          string target_wcpath,
		                          bool recurse,
		                          bool ignore_ancestry,
		                          bool force,
		                          bool dry_run,
		                          IntPtr merge_options,
		                          IntPtr ctx,
		                          IntPtr pool)
		{		
			// svn_boolean_t == int
			return svn_client_merge_peg2 (source, ref revision1, ref revision2, ref peg_revision, target_wcpath, 
			                              recurse ? 1: 0, ignore_ancestry ? 1 : 0, force ? 1 : 0, dry_run ? 1 : 0,
			                              merge_options, ctx, pool);
		}

		public override IntPtr client_propget (out IntPtr value, string name, string target, ref Rev revision, bool recurse, IntPtr ctx, IntPtr pool)
		{
			return svn_client_propget (out value, name, target, ref revision, recurse, ctx, pool);
		}

		public override IntPtr client_status (IntPtr result_rev, string path, ref Rev revision,
		                                      svn_wc_status_func2_t status_func, IntPtr status_baton,
		                                      bool recurse, bool get_all, bool update, bool no_ignore,
		                                      bool ignore_externals, IntPtr ctx, IntPtr pool)
		{
			return svn_client_status2 (result_rev, path, ref revision, status_func,
			                           status_baton, recurse, get_all, update,
			                           no_ignore, ignore_externals, ctx, pool);
		}

		[DllImport(svnclientlib)] static extern IntPtr svn_client_ls (out IntPtr dirents, string path_or_url,
		                                                              ref Rev revision, [MarshalAs (UnmanagedType.Bool)] bool recurse,
		                                                              IntPtr ctx, IntPtr pool);

		public override IntPtr client_log (IntPtr apr_array_header_t_targets,
		                                   ref Rev rev_start, ref Rev rev_end,
		                                   bool discover_changed_paths,
		                                   bool strict_node_history,
		                                   svn_log_message_receiver_t receiver,
		                                   IntPtr receiver_baton,
		                                   IntPtr ctx, IntPtr pool)
		{
			return svn_client_log (apr_array_header_t_targets, ref rev_start, ref rev_end,
			                       discover_changed_paths, strict_node_history, receiver,
			                       receiver_baton,ctx, pool);
		}