We get a segfault with the following error:

    ==10142== Process terminating with default action of signal 11 (SIGSEGV)
    ==10142==  Bad permissions for mapped region at address 0x6F00A20
    ==10142==    at 0x6F1074B: py_set_debug_level (pyglue.c:165)

The code which segfaults is:

  (DEBUGLEVEL) = level;

This is the following define:

    #define DEBUGLEVEL DEBUGLEVEL_CLASS[DBGC_ALL]

which is an:

extern int DEBUGLEVEL_CLASS;

and initialized with:

int     *DEBUGLEVEL_CLASS = discard_const_p(int, debug_class_list_initial);

So we are trying to write to a const pointer and fail!