RE: problem using call-process with grep

[Drew Adams]

    Finally, AFAIK Drew is using an old build of Emacs, so perhaps trying
    this in a newer build is in order.

FWIW, I get the same behavior with the build of June 6, 2005 (6 months old).
My Cygwin dates from January 2004, judging by some of the file dates.

Thanks for the other information. I won't be able to test the C code, but
perhaps someone will.