3 files changed, 37 insertions, 8 deletions

diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 7c064ce902..39cc03cf7a 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -1046,9 +1046,10 @@ check_undefined_types(#lint{usage=Usage,types=Def}=St0) ->
     Used = Usage#usage.used_types,
     UTAs = dict:fetch_keys(Used),
     Undef = [{TA,dict:fetch(TA, Used)} ||
-		TA <- UTAs,
+		{T,_}=TA <- UTAs,
 		not dict:is_key(TA, Def),
-		not is_default_type(TA)],
+		not is_default_type(TA),
+                not is_newly_introduced_var_arity_type(T)],
     foldl(fun ({TA,L}, St) ->
 		  add_error(L, {undefined_type,TA}, St)
 	  end, St0, Undef).
diff --git a/lib/stdlib/src/erl_tar.erl b/lib/stdlib/src/erl_tar.erl
index 40b48d7999..acf7a5cd40 100644
--- a/lib/stdlib/src/erl_tar.erl
+++ b/lib/stdlib/src/erl_tar.erl
@@ -381,7 +381,12 @@ to_octal(Int, Count, Result) ->
     to_octal(Int div 8, Count-1, [Int rem 8 + $0|Result]).
 
 to_string(Str0, Count) ->
-    Str = list_to_binary(Str0),
+    Str = case file:native_name_encoding() of
+	      utf8 ->
+		  unicode:characters_to_binary(Str0);
+	      latin1 ->
+		  list_to_binary(Str0)
+	  end,
     case byte_size(Str) of
 	Size when Size < Count ->
 	    [Str|zeroes(Count-Size)];
@@ -392,9 +397,17 @@ to_string(Str0, Count) ->
 
 pad_file(File) ->
     {ok,Position} = file:position(File, {cur,0}),
-    %% There must be at least one empty record at the end of the file.
-    Zeros = zeroes(?block_size - (Position rem ?block_size)),
-    file:write(File, Zeros).
+    %% There must be at least two zero records at the end.
+    Fill = case ?block_size - (Position rem ?block_size) of
+	       Fill0 when Fill0 < 2*?record_size ->
+		   %% We need to another block here to ensure that there
+		   %% are at least two zero records at the end.
+		   Fill0 + ?block_size;
+	       Fill0 ->
+		   %% Large enough.
+		   Fill0
+	   end,
+    file:write(File, zeroes(Fill)).
 
 split_filename(Name) when length(Name) =< ?th_name_len ->
     {"", Name};
@@ -608,7 +621,22 @@ typeflag(Bin) ->
 %% Get the name of the file from the prefix and name fields of the
 %% tar header.
 
-get_name(Bin) ->
+get_name(Bin0) ->
+    List0 = get_name_raw(Bin0),
+    case file:native_name_encoding() of
+	utf8 ->
+	    Bin = list_to_binary(List0),
+	    case unicode:characters_to_list(Bin) of
+		{error,_,_} ->
+		    List0;
+		List when is_list(List) ->
+		    List
+	    end;
+	latin1 ->
+	    List0
+    end.
+
+get_name_raw(Bin) ->
     Name = from_string(Bin, ?th_name, ?th_name_len),
     case binary_to_list(Bin, ?th_prefix+1, ?th_prefix+1) of
 	[0] ->
diff --git a/lib/stdlib/src/filelib.erl b/lib/stdlib/src/filelib.erl
index a266daa084..c0921e4cf1 100644
--- a/lib/stdlib/src/filelib.erl
+++ b/lib/stdlib/src/filelib.erl
@@ -488,7 +488,7 @@ badpattern(Reason) ->
     error({badpattern,Reason}).
 
 eval_read_file_info(File, file) ->
-    file:read_file_info(File);
+    file:read_link_info(File);
 eval_read_file_info(File, erl_prim_loader) ->
     case erl_prim_loader:read_file_info(File) of
 	error -> {error, erl_prim_loader};