* win/tclWinPipe.c: The pipe channel driver now respects

the -blocking option when closing.  The windows pipe driver
now has the same behavior as the UNIX side.  This change is
to avoid a hung shell when exiting due to open pipes that
refuse to close in a graceful manner.
* doc/open.n: Added a note about -blocking 0 and lack of
exit status as it had never been documented. [Bug 947693]

***POTENTIAL INCOMPATIBILITY***

Scripts that use async pipes on windows, must (like the
UNIX side) set -blocking to 1 before calling [close] to
receive the exit status.

* tests/winPipe.test (winpipe-6.1/2):  added 'fconfigure $f
-blocking 1' so the exit status can be acquired.

0 files changed, 0 insertions, 0 deletions