c23199d5e1
properly together. xxgdb communicates with a gdb running on a pty that it sets to -echo,-onlcr prior to forking the gdb process. GNU readline preserves the -echo setting while libedit was undoing it (setting the tty to a sane state and totally confusing xxgdb's parser). this diff simply disables libedit if both readline emulation and "stty -echo" are used/set. that is enough to make xxgdb work once again, but (XXX) this is not how GNU readline handles stty -echo (it does not echo anything, but editing commands like ^A,^K, etc. still work), so the readline emulation isn't perfect. change reviewed by christos.