--- a/src/ChangeLog	Fri Jan 04 21:49:15 2008 +0000
+++ b/src/ChangeLog	Mon Jan 07 14:40:24 2008 +0000
@@ -1,3 +1,13 @@
+2008-01-07  Michael Goffioul <michael.goffioul@gmail.com>
+
+	* ov-builtin.h (octave_builtin): Tag with OCTINTERP_API.
+	* ov-dld-fcn.h (octave_dld_function): Likewise.
+
+	* ov-dld-fcn.cc (octave_dld_function::create): New function.
+	* ov-dld-fcn.h: Provide decl.
+	* defun.h (DEFINE_FUNX_INSTALLER_FUN3): Call it instead of
+	creating a new octave_dld_function object directly.
+
 2008-01-04  John Swensen  <jpswensen@comcast.net>
 
 	* debug.cc (bp_table::do_remove_all_breakpoints_in_file):

--- a/src/defun-int.h	Fri Jan 04 21:49:15 2008 +0000
+++ b/src/defun-int.h	Mon Jan 07 14:40:24 2008 +0000
@@ -120,7 +120,7 @@
  \
     if (! error_state) \
       { \
-	octave_dld_function *fcn = new octave_dld_function (fname, shl, name, doc); \
+	octave_dld_function *fcn = octave_dld_function::create (fname, shl, name, doc); \
  \
         if (relative) \
           fcn->mark_relative (); \

--- a/src/ov-builtin.h	Fri Jan 04 21:49:15 2008 +0000
+++ b/src/ov-builtin.h	Mon Jan 07 14:40:24 2008 +0000
@@ -35,6 +35,7 @@
 // Builtin functions.
 
 class
+OCTINTERP_API
 octave_builtin : public octave_function
 {
 public:

--- a/src/ov-dld-fcn.cc	Fri Jan 04 21:49:15 2008 +0000
+++ b/src/ov-dld-fcn.cc	Mon Jan 07 14:40:24 2008 +0000
@@ -72,6 +72,24 @@
   return sh_lib.time_loaded ();
 }
 
+// Note: this wrapper around the octave_dld_function constructor is
+//       necessary to work around a MSVC limitation handling in
+//       virtual destructors that prevents unloading a dynamic module
+//       before *all* objects (of class using a virtual dtor) have
+//       been fully deleted; indeed, MSVC attaches auto-generated code
+//       (scalar deleting destructor) to objects created in a dynamic
+//       module, and this code will be executed in the dynamic module
+//       context at object deletion; unloading the dynamic module
+//       before objects have been deleted will make the "delete" code
+//       of objects to point to an invalid code segment.
+
+octave_dld_function*
+octave_dld_function::create (octave_builtin::fcn ff, const octave_shlib& shl,
+			     const std::string& nm, const std::string& ds)
+{
+  return new octave_dld_function (ff, shl, nm, ds);
+}
+
 /*
 ;;; Local Variables: ***
 ;;; mode: C++ ***

--- a/src/ov-dld-fcn.h	Fri Jan 04 21:49:15 2008 +0000
+++ b/src/ov-dld-fcn.h	Mon Jan 07 14:40:24 2008 +0000
@@ -40,6 +40,7 @@
 // Dynamically-linked functions.
 
 class
+OCTINTERP_API
 octave_dld_function : public octave_builtin
 {
 public:
@@ -65,6 +66,11 @@
   bool is_builtin_function (void) const { return false; }
 
   bool is_dld_function (void) const { return true; }
+  
+  static octave_dld_function* create (octave_builtin::fcn ff,
+      const octave_shlib& shl,
+      const std::string& nm = std::string (),
+      const std::string& ds = std::string ());
 
 private: