I have no .dlls for that .exe. I'm using the SHARED=0 static libs which create a 10MB exe. The folder path is gcc_lib, no longer gcc_dll. A hello world console app does the same thing, immediately shuts down after opening. And yes it does have a _getch() and should stop for input before closing. Runs fine from IDE, immediately closes stand-alone.
I'm getting the exact same problem with a non-wxwidgets simple console application that uses just mingw64. The pause and stop controls don't work, live breakpoints don't work, and ctrl+c does absolutely nothing.
GDB is version 7.9.1.