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diff --git a/lib/asn1/src/asn1rt_nif.erl b/lib/asn1/src/asn1rt_nif.erl
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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2002-2011. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+-module(asn1rt_nif).
+
+%% Nif interface for asn1
+
+-export([encode_per_complete/1,
+ decode_ber_tlv/1]).
+
+-on_load(load_nif/0).
+
+-define(ASN1_NIF_VSN,1).
+
+load_nif() ->
+ LibBaseName = "asn1_erl_nif",
+ PrivDir = code:priv_dir(asn1),
+ LibName = case erlang:system_info(build_type) of
+ opt ->
+ LibBaseName;
+ Type ->
+ LibTypeName = LibBaseName ++ "." ++ atom_to_list(Type),
+ case (filelib:wildcard(
+ filename:join(
+ [PrivDir,
+ "lib",
+ LibTypeName ++ "*"])) /= []) orelse
+ (filelib:wildcard(
+ filename:join(
+ [PrivDir,
+ "lib",
+ erlang:system_info(system_architecture),
+ LibTypeName ++ "*"])) /= []) of
+ true -> LibTypeName;
+ false -> LibBaseName
+ end
+ end,
+ Lib = filename:join([PrivDir, "lib", LibName]),
+ Status = case erlang:load_nif(Lib, ?ASN1_NIF_VSN) of
+ ok -> ok;
+ {error, {load_failed, _}}=Error1 ->
+ ArchLibDir =
+ filename:join([PrivDir, "lib",
+ erlang:system_info(system_architecture)]),
+ Candidate =
+ filelib:wildcard(filename:join([ArchLibDir,LibName ++ "*" ])),
+ case Candidate of
+ [] -> Error1;
+ _ ->
+ ArchLib = filename:join([ArchLibDir, LibName]),
+ erlang:load_nif(ArchLib, ?ASN1_NIF_VSN)
+ end;
+ Error1 -> Error1
+ end,
+ case Status of
+ ok -> ok;
+ {error, {E, Str}} ->
+ error_logger:error_msg("Unable to load asn1 nif library. "
+ "Failed with error:~n\"~p, ~s\"~n",[E,Str]),
+ Status
+ end.
+
+encode_per_complete(_Binary) ->
+ erlang:nif_error({nif_not_loaded,module,?MODULE,line,?LINE}).
+
+decode_ber_tlv(_Binary) ->
+ erlang:nif_error({nif_not_loaded,module,?MODULE,line,?LINE}).