On 26/04/2010 22:52, Simon Marlow wrote:
On 24/04/10 15:07, Petr Rockai wrote:
Hi,
Eric Kow<[email protected]> writes:
3. Work on darcs 2.4.2 resolving the Windows issue specifically
at this point, it is a matter of bumping h-s dependency to 0.4.12.
I have (semi-accidentally) tracked this bug down to yet another lstat
screwup in GHC. On win32, System.Posix.Internals.lstat just gives random
data. The index size and existence is derived from this random data and
that explains both symptoms that have been observed.
Could you submit a bug for that? I'm not by a Windows box right now to
test it, but looking at the code it looks like lstat has exactly the
same implementation as c_stat:
I see the problem. In GHC 6.10.x, System.Posix.Internals.lstat was
calling the 32-bit stat function, but the accessor functions st_sizeof
and co are expecting the 64-bit stat struct. Luckilly we never tickled
the bug in GHC (and strictly speaking, System.Posix.Internals is not a
public API).
In 6.12.x we fixed that bug, but at the same time we started using the
Unicode variant of stat, so lstat/c_stat now take a CWString rather than
a CString.
Cheers,
Simon
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