.

bigfile/_file_zodb.pyx

@@ -28,9 +28,28 @@ cdef extern from "wcfs/internal/wcfs.h":
     pass
 
 #from wendelin.bigfile import BigFile
+# XXX C++ does not understand -fplan9-extensions
+"""
 cdef extern from "bigfile/_bigfile.h":
-    ctypedef extern class _bigfile.BigFile[object PyBigFile]:
+    ctypedef extern class wendelin.bigfile._bigfile.BigFile[object PyBigFile]:
         pass
+"""
+# FIXME hack, keep in sync with PyBigFile
+cdef extern from *:
+    """
+    #include <wendelin/bigfile/file.h>
+    #include <wendelin/bigfile/virtmem.h>
+
+    struct CXXPyBigFile {
+        PyObject pyobj;
+        BigFile  file;
+    };
+    """
+    struct CXXPyBigFile:
+        pass
+    ctypedef extern class wendelin.bigfile._bigfile.BigFile[object CXXPyBigFile]:
+        pass
+
 
 # helper for ZBigFile - just redirect loadblk/storeblk back
 # (because it is not possible to inherit from both Persistent and BigFile at