Bug #4694
(http://archives.postgresql.org/message-id/200903050848.n258mVgm046178@wwwmaster.postgresql.org)
shows a very strange behaviour on windows when you use a different case PATH
From what I can tell, this is because dir_strcmp() is case sensitive,
but paths on windows are really case-insensitive.
Attached patch fixes this in my testcase. Can anybody spot something
wrong with it? If not, I'll apply once I've finished my test runs:-)
//Magnus