include gnucash_core of python bindings in python swig app-utils

common/cmake_modules/GncAddSwigCommand.cmake

@@ -84,7 +84,8 @@ macro (gnc_add_swig_python_command _target _out_var _py_out_var _output _py_outp
             ${CMAKE_SOURCE_DIR}/common
             ${CMAKE_SOURCE_DIR}/libgnucash/engine
             ${CMAKE_SOURCE_DIR}/libgnucash/app-utils
-        )
+       	    ${CMAKE_SOURCE_DIR}/bindings/python
+	)
 
         set (PYTHON_SWIG_FLAGS ${DEFAULT_SWIG_PYTHON_FLAGS})
         foreach (dir ${DEFAULT_SWIG_PYTHON_C_INCLUDES})

libgnucash/app-utils/app-utils.i

@@ -56,6 +56,7 @@ void
 #endif
 SWIG_init (void);
 %}
+%import <gnucash_core.i>
 #endif
 
 %import "base-typemaps.i"