Dans-Mac-2:src Dan$ G_DEBUG=fatal_warnings lldb bin/my_app
(lldb) target create "bin/my_app"
Current executable set to 'bin/my_app' (x86_64).
(lldb) r
Process 68224 launched: '/Volumes/freenas/src/bin/my_app' (x86_64)

(my_app:68224): Gdk-WARNING **: GdkQuartzDisplay does not implement the monitor vfuncs
Process 68224 stopped
* thread #1: tid = 0x4572d9, 0x0000000101097b34 libglib-2.0.0.dylib`_g_log_abort + 68, queue = 'com.apple.main-thread', stop reason = EXC_BREAKPOINT (code=EXC_I386_BPT, subcode=0x0)
    frame #0: 0x0000000101097b34 libglib-2.0.0.dylib`_g_log_abort + 68
libglib-2.0.0.dylib`_g_log_abort:
->  0x101097b34 <+68>: jmp    0x101097b3e               ; <+78>
    0x101097b39 <+73>: callq  0x1010fac62               ; symbol stub for: abort
    0x101097b3e <+78>: addq   $0x10, %rsp
    0x101097b42 <+82>: popq   %rbp
(lldb) bt
* thread #1: tid = 0x4572d9, 0x0000000101097b34 libglib-2.0.0.dylib`_g_log_abort + 68, queue = 'com.apple.main-thread', stop reason = EXC_BREAKPOINT (code=EXC_I386_BPT, subcode=0x0)
  * frame #0: 0x0000000101097b34 libglib-2.0.0.dylib`_g_log_abort + 68
    frame #1: 0x00000001010997a2 libglib-2.0.0.dylib`g_log_writer_default + 626
    frame #2: 0x00000001010983bd libglib-2.0.0.dylib`g_log_structured_array + 253
    frame #3: 0x0000000101098184 libglib-2.0.0.dylib`g_log_structured + 1588
    frame #4: 0x00000001009a01e1 libgdk-3.0.dylib`get_fallback_monitor + 145
    frame #5: 0x00000001009a0119 libgdk-3.0.dylib`gdk_display_get_monitor + 217
    frame #6: 0x00000001004e75a1 libgtk-3.0.dylib`gtk_widget_get_scale_factor + 305
    frame #7: 0x0000000100507ab6 libgtk-3.0.dylib`gtk_window_init + 1030
    frame #8: 0x0000000100ff4f8d libgobject-2.0.0.dylib`g_type_create_instance + 1069
    frame #9: 0x0000000100fd9a15 libgobject-2.0.0.dylib`g_object_new_internal + 85
    frame #10: 0x0000000100fd98da libgobject-2.0.0.dylib`g_object_new_valist + 2266
    frame #11: 0x0000000100fd8c43 libgobject-2.0.0.dylib`g_object_new + 467
    frame #12: 0x000000010050800b libgtk-3.0.dylib`gtk_window_new + 107
    frame #13: 0x0000000100002059 my_app`create_window + 169
    frame #14: 0x0000000100001b4b my_app`main + 123
    frame #15: 0x0000000100001ac4 my_app`start + 52
(lldb)