nickg/nvc — pull request #27 by hiyuh (2014-01-21 09:47:12+00:00)
Title: NO_STACK_TRACE for cygwin

as i reported at #25, this is for clean up and disable for stack trace on cygwin.
despite of broken `SA_SIGINFO` support on cygwin, current your master has possible NULL pointer dereference in `bt_signal_handler()` at getting `uintptr_t ip`.

P.S. plus, fix for a missing comma. :grin: