[ ghc-Bugs-811427 ] ghci messes up xterm's tty settings

Bugs item #811427, was opened at 2003-09-23 15:14
Message generated for change (Tracker Item Submitted) made by Item Submitter
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: ghci messes up xterm's tty settings

Initial Comment:
$ uname -a
SunOS syrma.ccs.neu.edu 5.9 Generic_112233-07 sun4u
sparc SUNW,Sun-Blade-100
$ echo $TERM
xterm
$ stty -a
speed 9600 baud; 
rows = 76; columns = 80; ypixels = 992; xpixels = 499;
csdata ?
eucw 1:0:0:0, scrw 1:0:0:0
intr = ^c; quit = ^\; erase = ^?; kill = ^u;
eof = ^d; eol = <undef>; eol2 = <undef>; swtch = <undef>;
start = ^q; stop = ^s; susp = ^z; dsusp = ^y;
rprnt = ^r; flush = ^o; werase = ^w; lnext = ^v;
parenb -parodd cs8 -cstopb hupcl cread -clocal -loblk
-crtscts -crtsxoff -parext 
-ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr
-igncr icrnl -iuclc 
ixon -ixany -ixoff -imaxbel 
isig icanon -xcase echo echoe echok -echonl -noflsh 
-tostop echoctl -echoprt echoke -defecho -flusho
-pendin iexten 
opost -olcuc onlcr -ocrnl -onocr -onlret -ofill -ofdel 
$ ghci   
   ___         ___ _
  / _ \ /\  /\/ __(_)
 / /_\// /_/ / /  | |      GHC Interactive, version
6.0.1, for Haskell 98.
/ /_\/ __  / /___| |      http://www.haskell.org/ghc/
\____/\/ /_/\____/|_|      Type :? for help.

Loading package base ... linking ... done.
Prelude> :quit
Leaving GHCi.
$ stty -a
speed 9600 baud; 
rows = 76; columns = 80; ypixels = 992; xpixels = 499;
csdata ?
eucw 1:0:0:0, scrw 1:0:0:0
min = 1; time = 0;
intr = ^c; quit = ^\; erase = ^?; kill = ^u;
eof = ^a; eol = <undef>; eol2 = <undef>; swtch = <undef>;
start = ^q; stop = ^s; susp = ^z; dsusp = ^y;
rprnt = ^r; flush = ^o; werase = ^w; lnext = ^v;
parenb -parodd cs8 -cstopb hupcl cread -clocal -loblk
-crtscts -crtsxoff -parext 
-ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr
-igncr icrnl -iuclc 
ixon -ixany -ixoff -imaxbel 
isig -icanon -xcase echo echoe echok -echonl -noflsh 
-tostop echoctl -echoprt echoke -defecho -flusho
-pendin iexten 
opost -olcuc onlcr -ocrnl -onocr -onlret -ofill -ofdel 
$ 

Note how using ghci changes the tty's value for eof and
icanon...  Changing eof in particular is annoying since
suddenly the time-honored ^d keyboard shortcut stops
working for any subsequent program I try to use in
that xterm unless I manually reset the tty's eof setting.

Philippe (meunier@xxxxxxxxxxx)



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