[RFA/RFC] new setting against auto-answer? (because "input not from terminal")

[Paul Hilfinger]

 > If you have been in that situation, and you use a MinGW debugger,
 > then you probably know that there are a few issues with the "terminal".
 > One of the issues that is causing us some trouble is the fact that
 > GDB automatically assumes the default answer for its y/n queries.
 > For instance:
 > 
 >     (top-gdb) start
 >     The program being debugged has been started already.
 >     Start it from the beginning? (y or n) [answered Y; input not from terminal]
 >     [...]
 > 
 > I propose a new "set/show interactive-mode (auto|on|off)" command
 > to allow the user to override what GDB detects. By default, GDB
 > still probes stdin and determines from there what mode should be
 > used.  But if the user knows what he's doing, he can force it in
 > situations where GDB's default behavior is less useful.

If the behavior of GDB on other OS's is OK, shouldn't this be a
configuration parameter of some sort, preferably set automatically by
configure?

Paul Hilfinger