ident PEXPERT
options MACH_PE # Objective-C support # <mach_pe>
-options MACH_KERNEL
-options DEBUG
+options MACH_KERNEL
+options DEBUG # general debugging code # <debug>
+options DEVELOPMENT # dev kernel # <development>
+options MACH_ASSERT # # <mach_assert>
+options CONFIG_DTRACE # dtrace support # <config_dtrace>
+options CONFIG_NO_PANIC_STRINGS # <no_panic_str>
+options CONFIG_NO_PRINTF_STRINGS # <no_printf_str>
+options CONFIG_NO_KPRINTF_STRINGS # <no_kprintf_str>