--- Lib/linsolve/umfpack/umfpack.i.orig	2007-06-06 14:53:42.261505250 +0100
+++ Lib/linsolve/umfpack/umfpack.i	2007-06-06 14:54:12.167374250 +0100
@@ -114,6 +114,7 @@
     return NULL; \
   } \
   $1 = (double *) obj->data; \
+  Py_DECREF( obj ); \
 };
 
 /*!
@@ -127,7 +128,7 @@
 }; \
 %typemap( python, argout ) ttype* opaque_argout { \
   PyObject *obj; \
-  obj = SWIG_NewPointerObj( (ttype) (*$1), $*1_descriptor, 1 ); \
+  obj = SWIG_NewPointerObj( (ttype) (*$1), $*1_descriptor, 0 ); \
   $result = helper_appendToTuple( $result, obj ); \
 };
 
@@ -143,7 +144,7 @@
 }; \
 %typemap( python, argout ) ttype* opaque_arginout { \
   PyObject *obj; \
-  obj = SWIG_NewPointerObj( (ttype) (*$1), $*1_descriptor, 1 ); \
+  obj = SWIG_NewPointerObj( (ttype) (*$1), $*1_descriptor, 0 ); \
   $result = helper_appendToTuple( $result, obj ); \
 };