Redirecting bash stdin

[Dave]

 >>>According to Dave on 4/21/2006 11:45 AM:
 >>>
 >>>>I'm trying to get a mingw GUI application to pipe commands to
 >>>>cygwins bash by redirecting its stdin as described here
 >>>><http://support.microsoft.com/?id=190351>.

Buchbinder, Barry (NIH/NIAID) [E] wrote:
> Have you tried piping into "bash -s"?  Probably won't be any different
> than the other piping you've tried, but maybe it will.

I've just tried this - it doesn't affect the behaviour.

 >>Eric Blake wrote:
 >>> A simple test case is a necessity if you expect help debugging this.

I've finally got the test case to show the behaviour I'm seeing in my 
application. Find it attached.

Instructions to reproduce
-------------------------

1. Compile the testcase as:

g++ -g -mno-cygwin -pedantic -Wall -W -o min_tc.exe min_tc.cc

2. Confirm you have Windows notepad in your path :)

which notepad

3. Identify a text file in your home directory to open. I'll use gdbtk.ini

4. Execute the 'working' case:

./min_tc notepad gdbtk.ini

    - a few seconds pause while the bash login shell is starting
    - notepad opens with your textfile (or a messagebox saying it can't 
fnid it). You can leave this open, or close it.
    - 10 second pause while the test case sleeps
    - returned to your prompt

5. Execute the 'non-working' case:

./min_tc notepad \`cygpath -u gdbtk.ini\`

    - a long pause (bash startup + 10s sleep)
    - almost simultaneous opening of notepad and return to shell

NB In order to clearly see the difference in behaviour, it is useful
to run the command from a shell which only displays its prompt after
the command has completed. This rules out command.com and cmd.exe,
although they exhibit the same issue.
-------------

Any help figuring out what's causing the delayed execution is much 
appreciated.

Thanks,

Dave.
PS now running bash 3.1-6
PPS yes, that is as minimal as I could get the test case. Apologies.
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