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-rw-r--r--ext/pty/pty.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ext/pty/pty.c b/ext/pty/pty.c
index 9650f533f2..ff506a107b 100644
--- a/ext/pty/pty.c
+++ b/ext/pty/pty.c
@@ -462,10 +462,10 @@ pty_close_pty(VALUE assoc)
* # assuming that factor uses stdio for stdout buffering.
* # If IO.pipe is used instead of PTY.open,
* # this code deadlocks because factor's stdout is fully buffered.
+ * require "io/console"
* m, s = PTY.open
- * system("stty raw", :in=>s) # disable newline conversion.
* r, w = IO.pipe
- * pid = spawn("factor", :in=>r, :out=>s)
+ * pid = s.raw { spawn("factor", :in=>r, :out=>s) }
* r.close
* s.close
* w.puts "42"