matplotlib segfault

[skip at pobox.com]

I finally got py25-matplotlib installed.  Like an earlier poster though I
get a segfault with the TkAgg backend.  Running under gdb gives me the
barest of information though since nothing appears to be built with debug
symbols enabled:

    #0  0x01f0bf40 in TclpFree ()
    #1  0x01f0807e in ResetObjResult ()
    #2  0x01fc08c6 in Tk_MainWindow ()
    #3  0x01e832e0 in PyAggImagePhoto ()
    #4  0x01eb5aeb in TclInvokeStringCommand ()
    #5  0x0a010518 in TclEvalObjvInternal ()
    #6  0x0a0108fb in Tcl_EvalObjv ()
    #7  0x01aed848 in Tkapp_Call ()
    #8  0x00234e5f in PyEval_EvalFrameEx ()
    #9  0x00236baa in PyEval_EvalCodeEx ()
    #10 0x002349c3 in PyEval_EvalFrameEx ()
    #11 0x00236baa in PyEval_EvalCodeEx ()
    #12 0x002349c3 in PyEval_EvalFrameEx ()
    #13 0x00236baa in PyEval_EvalCodeEx ()
    #14 0x001c41ea in function_call ()
    #15 0x0019f922 in PyObject_Call ()
    #16 0x00233021 in PyEval_EvalFrameEx ()
    #17 0x00236baa in PyEval_EvalCodeEx ()
    #18 0x001c41ea in function_call ()
    #19 0x0019f922 in PyObject_Call ()
    #20 0x001a8676 in instancemethod_call ()
    #21 0x0019f922 in PyObject_Call ()
    #22 0x0022e196 in PyEval_CallObjectWithKeywords ()
    #23 0x01aebd4c in PythonCmd ()
    #24 0x0a00d7cf in TclInvokeStringCommand ()
    #25 0x0a010518 in TclEvalObjvInternal ()
    #26 0x0a05839c in TclExecuteByteCode ()
    #27 0x0a061088 in Tcl_ExprObj ()
    #28 0x0a010de5 in Tcl_ExprBooleanObj ()
    #29 0x0a01beb5 in Tcl_IfObjCmd ()
    #30 0x0a010518 in TclEvalObjvInternal ()
    #31 0x0a011645 in TclEvalEx ()
    #32 0x0a011f3e in Tcl_EvalEx ()
    #33 0x0b007f01 in Tk_BindEvent ()
    #34 0x0b00de59 in TkBindEventProc ()
    #35 0x0b0162fa in Tk_HandleEvent ()
    #36 0x0b033c3a in TkDoConfigureNotify ()
    #37 0x0b033da9 in Tk_MakeWindowExist ()
    #38 0x0b033ee8 in Tk_MapWindow ()
    #39 0x0b02a4b2 in ArrangePacking ()
    #40 0x0a0ac658 in TclServiceIdle ()
    #41 0x0a08e2ea in Tcl_DoOneEvent ()
    #42 0x01aeb4f6 in Tkapp_MainLoop ()
    #43 0x00234e5f in PyEval_EvalFrameEx ()
    #44 0x00236baa in PyEval_EvalCodeEx ()
    #45 0x002349c3 in PyEval_EvalFrameEx ()
    #46 0x00236baa in PyEval_EvalCodeEx ()
    #47 0x002349c3 in PyEval_EvalFrameEx ()
    #48 0x00236baa in PyEval_EvalCodeEx ()
    #49 0x00236cb7 in PyEval_EvalCode ()
    #50 0x0025a8e4 in PyRun_InteractiveOneFlags ()
    #51 0x0025ab23 in PyRun_InteractiveLoopFlags ()
    #52 0x0025b329 in PyRun_AnyFileExFlags ()
    #53 0x00269848 in Py_Main ()
    #54 0x00001f7c in _start ()
    #55 0x00001ea9 in start ()

Is this enough for someone to debug with?  If not, how do I go about
installing debug versions of the various packages?  Is another interactive
backend supported for matplotlib?

Thx,

-- 
Skip Montanaro - skip at pobox.com - http://www.webfast.com/~skip/