File otp_src_19.2-dializer-relax-check-plt.patch of Package erlang

diff -Ndurp otp_src_19.2/lib/dialyzer/src/dialyzer_plt.erl otp_src_19.2-dializer-relax-check-plt/lib/dialyzer/src/dialyzer_plt.erl
--- otp_src_19.2/lib/dialyzer/src/dialyzer_plt.erl	2016-12-09 12:45:24.000000000 +0200
+++ otp_src_19.2-dializer-relax-check-plt/lib/dialyzer/src/dialyzer_plt.erl	2017-01-15 02:17:40.118626329 +0200
@@ -285,12 +285,7 @@ included_files(FileName) ->
       Error
   end.
 
-check_version(#file_plt{version = ?VSN, implementation_md5 = ImplMd5}) ->
-  case compute_new_md5(ImplMd5, [], []) of
-    ok -> ok;
-    {differ, _, _} -> error;
-    {error, _} -> error
-  end;
+check_version(#file_plt{version = ?VSN}) -> ok;
 check_version(#file_plt{}) -> error.
 
 get_record_from_file(FileName) ->
@@ -401,15 +396,16 @@ to_file(FileName,
 check_plt(FileName, RemoveFiles, AddFiles) ->
   case get_record_from_file(FileName) of
     {ok, #file_plt{file_md5_list = Md5, mod_deps = ModDeps} = Rec} ->
+      Md5Res = compute_new_md5(Md5, RemoveFiles, AddFiles),
       case check_version(Rec) of
 	ok ->
-	  case compute_new_md5(Md5, RemoveFiles, AddFiles) of
+	  case Md5Res of
 	    ok -> ok;
 	    {differ, NewMd5, DiffMd5} -> {differ, NewMd5, DiffMd5, ModDeps};
 	    {error, _What} = Err -> Err
 	  end;
 	error ->
-	  case compute_new_md5(Md5, RemoveFiles, AddFiles) of
+	  case Md5Res of
 	    ok -> {old_version, Md5};
 	    {differ, NewMd5, _DiffMd5} -> {old_version, NewMd5};
 	    {error, _What} = Err -> Err
@@ -463,12 +459,9 @@ compute_md5_from_file(File) ->
       Msg = io_lib:format("Not a regular file: ~s\n", [File]),
       throw({dialyzer_error, Msg});
     true ->
-      case dialyzer_utils:get_abstract_code_from_beam(File) of
-	error ->
-	  Msg = io_lib:format("Could not get abstract code for file: ~s (please recompile it with +debug_info)\n", [File]),
-	  throw({dialyzer_error, Msg});
-	{ok, Abs} ->
-	  erlang:md5(term_to_binary(Abs))
+      case beam_lib:md5(File) of
+	{ok, {_, MD5}} -> MD5;
+	E -> throw({dialyzer_error, beam_lib:format_error(E)})
       end
   end.