I'm not sure what's going on here, and what I should do, can anyone
tell me what I need to send in this bug report? See below (d has been
aliased to darcs in my shell).

chewyong@mb6596_chewyong ~/code/lisp/iris
$ d pull
plink: unknown option "-O"
darcs.exe: bug in darcs!
Impossible case at Pull.lhs:194 compiled 15:36:38 May 14 2006
Please report this to bugs@darcs.net,
If possible include the output of 'darcs --exact-version'.

chewyong@mb6596_chewyong ~/code/lisp/iris
$ darcs --exact-version
darcs compiled on May 14 2006, at 15:38:56
# configured Sun May 14 15:29:40 USMST 2006
./configure --disable-mmap

Context:

[TAG 1.0.7
Tommy Pettersson <ptp@lysator.liu.se>**20060513171438]

chewyong@mb6596_chewyong ~/code/lisp/iris
$ uname -a
CYGWIN_NT-5.1 mb6596_chewyong 1.5.24(0.156/4/2) 2007-01-31 10:57

Hi,

Thanks for your report.  You might be pleased to know that it has been
resolved in version 1.0.8 of darcs.

Cheers,