NOT KNOWN DETAILS ABOUT ACGWIN

Cygwin's default user interface may be the bash shell jogging during the mintty terminal emulator.[25] The DLL also implements pseudo terminal (pty) gadgets, and Cygwin ships with several terminal emulators which might be dependant on them, including rxvt/urxvt and xterm. The version of GCC that comes with Cygwin has different extensions for genera