$ ./fontforge.sh 
Script started, output file is /Users/dcrossland/FontForge-Debug-Output.txt
(lldb) Executing commands in 'debug-script.sh'.
(lldb)  #!/bin/sh
(lldb)  version
LLDB-179.5
(lldb)  settings set frame-format "frame #${frame.index}: ${frame.pc}{ ${module.file.basename}`${function.name-with-args}{${function.pc-offset}}}{ at ${line.file.basename}:${line.number}}\n"
(lldb)  target create /usr/local/bin/fontforge
Current executable set to '/usr/local/bin/fontforge' (x86_64).
(lldb)  target select 0
Current targets:
* target #0: /usr/local/bin/fontforge ( arch=x86_64-apple-macosx, platform=localhost )
(lldb)  run
Process 18877 launched: '/usr/local/bin/fontforge' (x86_64)
Command #6 'run' continued the target.
Copyright (c) 2000-2012 by George Williams.
 Executable based on sources from 14:57 GMT 31-Jul-2012-D.
 Library based on sources from 14:57 GMT 31-Jul-2012.
Recovering from /Users/dcrossland/.FontForge/autosave/auto003ec1-1.asfd...  Done
Recovering from /Users/dcrossland/.FontForge/autosave/auto0048b8-1.asfd...  Done
Recovering from /Users/dcrossland/.FontForge/autosave/auto0048cc-1.asfd...  Done
Recovering from /Users/dcrossland/.FontForge/autosave/auto0048d5-1.asfd...  Done
Process 18877 stopped
* thread #1: tid = 0x1c03, 0x00000001003a82df libfontforge.1.dylib`SpiroCP2SplineSet + 316, stop reason = EXC_BAD_ACCESS (code=1, address=0x18)
    "frame #0: 0x00000001003a82df libfontforge.1.dylib`SpiroCP2SplineSet + 316
"libfontforge.1.dylib`SpiroCP2SplineSet + 316:
-> 0x1003a82df:  movq   %r14, 24(%r15)
   0x1003a82e3:  incl   %ebx
   0x1003a82e5:  movw   %bx, 34(%r15)
   0x1003a82ea:  movw   %bx, 32(%r15)
(lldb) bt
* thread #1: tid = 0x1c03, 0x00000001003a82df libfontforge.1.dylib`SpiroCP2SplineSet + 316, stop reason = EXC_BAD_ACCESS (code=1, address=0x18)
    "frame #0: 0x00000001003a82df libfontforge.1.dylib`SpiroCP2SplineSet + 316
"    "frame #1: 0x00000001003a8678 libfontforge.1.dylib`SSRegenerateFromSpiros + 46
"    "frame #2: 0x000000010004de6c fontforge`CVMouseMoveSpiroPoint + 332
"    "frame #3: 0x0000000100034562 fontforge`CVMouseMove + 2278
"    "frame #4: 0x000000010003050c fontforge`v_e_h + 234
"    "frame #5: 0x00000001005b70f5 libgdraw.4.dylib`_GWidget_Container_eh + 1541
"    "frame #6: 0x000000010060328c libgdraw.4.dylib`dispatchEvent + 5518
"    "frame #7: 0x0000000100600c86 libgdraw.4.dylib`GXDrawEventLoop + 65
"    "frame #8: 0x0000000100126868 fontforge`main + 5982
"    "frame #9: 0x00007fff839227e1 libdyld.dylib`start + 1
"(lldb) q