6 files changed, 11 insertions, 11 deletions
diff --git a/lib/syntax_tools/src/erl_comment_scan.erl b/lib/syntax_tools/src/erl_comment_scan.erl
index e2c6976a2b..108ab3bffd 100644
--- a/lib/syntax_tools/src/erl_comment_scan.erl
+++ b/lib/syntax_tools/src/erl_comment_scan.erl
@@ -26,6 +26,7 @@
 
 -export([file/1, join_lines/1, scan_lines/1, string/1]).
 
+-export_type([comment/0]).
 
 %% =====================================================================
 
diff --git a/lib/syntax_tools/src/erl_recomment.erl b/lib/syntax_tools/src/erl_recomment.erl
index 145bbc6f37..94e760dad7 100644
--- a/lib/syntax_tools/src/erl_recomment.erl
+++ b/lib/syntax_tools/src/erl_recomment.erl
@@ -486,7 +486,7 @@ build_tree(Node) ->
 	    
 	    %% Include L, while preserving Min =< Max.
 	    tree_node(minpos(L, Min),
-		      max(L, Max),
+		      erlang:max(L, Max),
 		      erl_syntax:type(Node),
 		      erl_syntax:get_attrs(Node),
 		      Subtrees)
@@ -507,7 +507,7 @@ build_list(Ts) ->
 build_list([T | Ts], Min, Max, Ack) ->
     Node = build_tree(T),
     Min1 = minpos(node_min(Node), Min),
-    Max1 = max(node_max(Node), Max),
+    Max1 = erlang:max(node_max(Node), Max),
     build_list(Ts, Min1, Max1, [Node | Ack]);
 build_list([], Min, Max, Ack) ->
     list_node(Min, Max, lists:reverse(Ack)).
@@ -518,7 +518,7 @@ build_list_list(Ls) ->
 build_list_list([L | Ls], Min, Max, Ack) ->
     Node = build_list(L),
     Min1 = minpos(node_min(Node), Min),
-    Max1 = max(node_max(Node), Max),
+    Max1 = erlang:max(node_max(Node), Max),
     build_list_list(Ls, Min1, Max1, [Node | Ack]);
 build_list_list([], Min, Max, Ack) ->
     {lists:reverse(Ack), Min, Max}.
@@ -723,9 +723,6 @@ tree_node_attrs(#tree{attrs = Attrs}) ->
 
 %% Just the generic "maximum" function
 
-max(X, Y) when X > Y -> X;
-max(_, Y) -> Y.
-
 %% Return the least positive integer of X and Y, or zero if none of them
 %% are positive. (This is necessary for computing minimum source line
 %% numbers, since zero (or negative) numbers may occur, but they
diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl
index 9a2967d550..a40bf83c5a 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -309,6 +309,7 @@
 	 data/1,
 	 is_tree/1]).
 
+-export_type([forms/0, syntaxTree/0, syntaxTreeAttributes/0]).
 
 %% =====================================================================
 %% IMPLEMENTATION NOTES:
diff --git a/lib/syntax_tools/src/erl_syntax_lib.erl b/lib/syntax_tools/src/erl_syntax_lib.erl
index 5c4e074488..4808971a59 100644
--- a/lib/syntax_tools/src/erl_syntax_lib.erl
+++ b/lib/syntax_tools/src/erl_syntax_lib.erl
@@ -46,6 +46,8 @@
          new_variable_names/2, new_variable_names/3, strip_comments/1,
          to_comment/1, to_comment/2, to_comment/3, variables/1]).
 
+-export_type([info_pair/0]).
+
 %% =====================================================================
 
 -type ordset(X) :: [X].  % XXX: TAKE ME OUT
@@ -400,10 +402,7 @@ new_variable_name(N, R, _T, F, S) ->
 %% implementation of `sets'.
 
 start_range(S) ->
-    max(sets:size(S) * ?START_RANGE_FACTOR, ?MINIMUM_RANGE).
-
-max(X, Y) when X > Y -> X;
-max(_, Y) -> Y.
+    erlang:max(sets:size(S) * ?START_RANGE_FACTOR, ?MINIMUM_RANGE).
 
 %% The previous number might or might not be used to compute the
 %% next number to be tried. It is currently not used.
diff --git a/lib/syntax_tools/src/prettypr.erl b/lib/syntax_tools/src/prettypr.erl
index 1868f63e54..c13fa30998 100644
--- a/lib/syntax_tools/src/prettypr.erl
+++ b/lib/syntax_tools/src/prettypr.erl
@@ -48,6 +48,8 @@
 	 nest/2, par/1, par/2, sep/1, text/1, null_text/1, text_par/1,
 	 text_par/2]).
 
+-export_type([document/0]).
+
 %% ---------------------------------------------------------------------
 
 -type deep_string() :: [char() | deep_string()].
diff --git a/lib/syntax_tools/vsn.mk b/lib/syntax_tools/vsn.mk
index 2ba5eac582..6051fb8e39 100644
--- a/lib/syntax_tools/vsn.mk
+++ b/lib/syntax_tools/vsn.mk
@@ -1 +1 @@
-SYNTAX_TOOLS_VSN = 1.6.5
+SYNTAX_TOOLS_VSN = 1.6.6