libstdc++/9533: Regression: Can't read from tty with ifstream

[paolo@gcc.gnu.org]

Synopsis: Regression: Can't read from tty with ifstream

Responsible-Changed-From-To: unassigned->paolo
Responsible-Changed-By: paolo
Responsible-Changed-When: Mon Mar  3 12:25:22 2003
Responsible-Changed-Why:
    Patching: indeed, reverting this hunk of 6746 commit:
    
    +
    +	    // Set input to nonblocking for fifos.
    +	    if (__mode & ios_base::in)
    +	      fcntl(this->fd(), F_SETFL, O_NONBLOCK);
    +
    
    Fixes the problem without regressing on 6746.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9533