diff --git a/Packages/Intersections_2/changes.txt b/Packages/Intersections_2/changes.txt
index cab72b9777a..c016420d900 100644
--- a/Packages/Intersections_2/changes.txt
+++ b/Packages/Intersections_2/changes.txt
@@ -1,3 +1,6 @@
+2.9.1 (3 October 2001)
+Small fixes
+
 2.9 (19 September 2001)
 Bbox_2 intersections with line and ray use pimpl idiom and Simple_cartesian.
 
diff --git a/Packages/Intersections_2/include/CGAL/Bbox_2_Line_2_intersection.h b/Packages/Intersections_2/include/CGAL/Bbox_2_Line_2_intersection.h
index b000f0e1bdb..9dabd16e432 100644
--- a/Packages/Intersections_2/include/CGAL/Bbox_2_Line_2_intersection.h
+++ b/Packages/Intersections_2/include/CGAL/Bbox_2_Line_2_intersection.h
@@ -62,7 +62,7 @@ Bbox_2_Line_2_pair intersection_computer_line_2(
 }
 
 inline bool do_intersect_line_2(
-    const Bbox_2 &box, double line_a, double line_b, double line_c);
+    const Bbox_2 &box, double line_a, double line_b, double line_c)
 {
     Bbox_2_Line_2_pair pair(box, line_a, line_b, line_c);
     return pair.intersection_type() != Bbox_2_Line_2_pair::NO;
diff --git a/Packages/Intersections_2/include/CGAL/Line_2_Line_2_intersection.h b/Packages/Intersections_2/include/CGAL/Line_2_Line_2_intersection.h
index e880f0a7743..0d86cfc0c9f 100644
--- a/Packages/Intersections_2/include/CGAL/Line_2_Line_2_intersection.h
+++ b/Packages/Intersections_2/include/CGAL/Line_2_Line_2_intersection.h
@@ -173,7 +173,7 @@ Line_2_Line_2_pair<R>::Line_2_Line_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Line_2_Line_2_pair<R>::Intersection_results
+typename Line_2_Line_2_pair<R>::Intersection_results
 Line_2_Line_2_pair<R>::intersection_type() const
 {
     typedef typename R::RT RT;
diff --git a/Packages/Intersections_2/include/CGAL/Ray_2_Line_2_intersection.h b/Packages/Intersections_2/include/CGAL/Ray_2_Line_2_intersection.h
index 2c588d8c342..937e6273f87 100644
--- a/Packages/Intersections_2/include/CGAL/Ray_2_Line_2_intersection.h
+++ b/Packages/Intersections_2/include/CGAL/Ray_2_Line_2_intersection.h
@@ -169,7 +169,7 @@ Ray_2_Line_2_pair<R>::Ray_2_Line_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Ray_2_Line_2_pair<R>::Intersection_results
+typename Ray_2_Line_2_pair<R>::Intersection_results
 Ray_2_Line_2_pair<R>::intersection_type() const
 {
     if (_known)
diff --git a/Packages/Intersections_2/include/CGAL/Ray_2_Ray_2_intersection.h b/Packages/Intersections_2/include/CGAL/Ray_2_Ray_2_intersection.h
index 040dd5950a6..eb8f17c5847 100644
--- a/Packages/Intersections_2/include/CGAL/Ray_2_Ray_2_intersection.h
+++ b/Packages/Intersections_2/include/CGAL/Ray_2_Ray_2_intersection.h
@@ -217,7 +217,7 @@ Ray_2_Ray_2_pair<R>::Ray_2_Ray_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Ray_2_Ray_2_pair<R>::Intersection_results
+typename Ray_2_Ray_2_pair<R>::Intersection_results
 Ray_2_Ray_2_pair<R>::intersection_type() const
 {
     if (_known)
diff --git a/Packages/Intersections_2/include/CGAL/Ray_2_Segment_2_intersection.h b/Packages/Intersections_2/include/CGAL/Ray_2_Segment_2_intersection.h
index eb4afedcaf0..5030e556b24 100644
--- a/Packages/Intersections_2/include/CGAL/Ray_2_Segment_2_intersection.h
+++ b/Packages/Intersections_2/include/CGAL/Ray_2_Segment_2_intersection.h
@@ -226,7 +226,7 @@ Ray_2_Segment_2_pair<R>::Ray_2_Segment_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Ray_2_Segment_2_pair<R>::Intersection_results
+typename Ray_2_Segment_2_pair<R>::Intersection_results
 Ray_2_Segment_2_pair<R>::intersection_type() const
 {
     if (_known)
diff --git a/Packages/Intersections_2/include/CGAL/Segment_2_Line_2_intersection.h b/Packages/Intersections_2/include/CGAL/Segment_2_Line_2_intersection.h
index 13e3996c6ff..093c3f8634c 100644
--- a/Packages/Intersections_2/include/CGAL/Segment_2_Line_2_intersection.h
+++ b/Packages/Intersections_2/include/CGAL/Segment_2_Line_2_intersection.h
@@ -168,7 +168,7 @@ Segment_2_Line_2_pair<R>::Segment_2_Line_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Segment_2_Line_2_pair<R>::Intersection_results
+typename Segment_2_Line_2_pair<R>::Intersection_results
 Segment_2_Line_2_pair<R>::intersection_type() const
 {
     if (_known)
diff --git a/Packages/Intersections_2/include/CGAL/Segment_2_Segment_2_intersection.h b/Packages/Intersections_2/include/CGAL/Segment_2_Segment_2_intersection.h
index 55932cf626b..25b2e4af478 100644
--- a/Packages/Intersections_2/include/CGAL/Segment_2_Segment_2_intersection.h
+++ b/Packages/Intersections_2/include/CGAL/Segment_2_Segment_2_intersection.h
@@ -424,7 +424,7 @@ Segment_2_Segment_2_pair<R>::Segment_2_Segment_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Segment_2_Segment_2_pair<R>::Intersection_results
+typename Segment_2_Segment_2_pair<R>::Intersection_results
 Segment_2_Segment_2_pair<R>::intersection_type() const
 {
     if (_known)
diff --git a/Packages/Intersections_2/version b/Packages/Intersections_2/version
index adb40d62848..318cd6ff91c 100644
--- a/Packages/Intersections_2/version
+++ b/Packages/Intersections_2/version
@@ -1 +1 @@
-2.10 (28 Sep 2001)
+2.9.1 ( 3 Oct 2001)
diff --git a/Packages/Intersections_2/web/intersection_2_1.fw b/Packages/Intersections_2/web/intersection_2_1.fw
index be401cf7292..a2957df0d1a 100644
--- a/Packages/Intersections_2/web/intersection_2_1.fw
+++ b/Packages/Intersections_2/web/intersection_2_1.fw
@@ -59,7 +59,7 @@ Bbox_2_Line_2_pair intersection_computer_line_2(
 }
 
 inline bool do_intersect_line_2(
-    const Bbox_2 &box, double line_a, double line_b, double line_c);
+    const Bbox_2 &box, double line_a, double line_b, double line_c)
 {
     Bbox_2_Line_2_pair pair(box, line_a, line_b, line_c);
     return pair.intersection_type() != Bbox_2_Line_2_pair::NO;
@@ -711,7 +711,7 @@ Line_2_Line_2_pair<R>::Line_2_Line_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Line_2_Line_2_pair<R>::Intersection_results
+typename Line_2_Line_2_pair<R>::Intersection_results
 Line_2_Line_2_pair<R>::intersection_type() const
 @<Line_2_Line_2_pair intersection_type body@>
 #endif // CGAL_CFG_RETURN_TYPE_BUG_2
@@ -914,7 +914,7 @@ Segment_2_Line_2_pair<R>::Segment_2_Line_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Segment_2_Line_2_pair<R>::Intersection_results
+typename Segment_2_Line_2_pair<R>::Intersection_results
 Segment_2_Line_2_pair<R>::intersection_type() const
 @<Segment_2_Line_2_pair intersection_type body@>
 #endif // CGAL_CFG_RETURN_TYPE_BUG_2
@@ -1242,7 +1242,7 @@ Segment_2_Segment_2_pair<R>::Segment_2_Segment_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Segment_2_Segment_2_pair<R>::Intersection_results
+typename Segment_2_Segment_2_pair<R>::Intersection_results
 Segment_2_Segment_2_pair<R>::intersection_type() const
 @<Segment_2_Segment_2_pair intersection_type body@>
 #endif // CGAL_CFG_RETURN_TYPE_BUG_2
@@ -1500,7 +1500,7 @@ Ray_2_Line_2_pair<R>::Ray_2_Line_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Ray_2_Line_2_pair<R>::Intersection_results
+typename Ray_2_Line_2_pair<R>::Intersection_results
 Ray_2_Line_2_pair<R>::intersection_type() const
 @<Ray_2_Line_2_pair intersection_type body@>
 #endif // CGAL_CFG_RETURN_TYPE_BUG_2
@@ -1694,7 +1694,7 @@ Ray_2_Segment_2_pair<R>::Ray_2_Segment_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Ray_2_Segment_2_pair<R>::Intersection_results
+typename Ray_2_Segment_2_pair<R>::Intersection_results
 Ray_2_Segment_2_pair<R>::intersection_type() const
 @<Ray_2_Segment_2_pair intersection_type body@>
 #endif // CGAL_CFG_RETURN_TYPE_BUG_2
@@ -1950,7 +1950,7 @@ Ray_2_Ray_2_pair<R>::Ray_2_Ray_2_pair(
 
 #ifndef CGAL_CFG_RETURN_TYPE_BUG_2
 template <class R>
-Ray_2_Ray_2_pair<R>::Intersection_results
+typename Ray_2_Ray_2_pair<R>::Intersection_results
 Ray_2_Ray_2_pair<R>::intersection_type() const
 @<Ray_2_Ray_2_pair intersection_type body@>
 #endif // CGAL_CFG_RETURN_TYPE_BUG_2