[Buildroot] Qt command line issue

[Karl Krach]

On Sat, 21 Jan 2012 03:53:59 +0100, Arnout Vandecappelle wrote:
> Are you sure you get this over SSH?  This is typically what you see 
> on a
> serial terminal.  The serial terminal should be configured to expect 
> LF
> instead of CRLF.  Alternatively, if you have a shell on the other 
> side,
> you can do 'stty onlret' (or is it -onlret?) to let the tty driver 
> insert
> the CR.

You ve been right. I was just so naive to type "stty onlret" before 
starting my application. This is how it works:

     // Save terminal settings
     int m_tty_fd = 0;
     struct ::termios termdata;
     tcgetattr(m_tty_fd, &termdata);

     QApplication app( argc, argv, QApplication::GuiServer );

     // Restore terminal settings
     tcsetattr(m_tty_fd, TCSANOW, &termdata);


There is a line in the Qt sources (which I found after Frank gave me 
the tip, that the problem only appears when setting the QWS_KEYBOARD 
environment variable) which removes the "onlret flag" when isatty(0) 
returns true. Issue #1 is also solved with this lines - but I don't know 
why :)

Best regards,

Charly