[darcs-users] fromJust error in darcs-2.0.0

[Jason Dagit]

On Tue, Apr 22, 2008 at 4:24 PM, Greg Holtz <gh2377 at hotmail.com> wrote:

>  Hello,
> I have compiled darcs-2.0.0 on opensolaris x86 with ghc 6.8.2.
> When I run "darcs whatsnew", or any command that accesses
> the darcs database, such as "add" "changes", etc... I get the
> following fromJust errors.
>
> $ darcs whatsnew
> darcs: bug in darcs!
> fromJust errorsrc/Darcs/SlurpDirectory.lhs:347 compiled Apr 21 2008
> 10:44:14 at src/Darcs/SlurpDirectory.lhs:347 compiled Apr 21 2008 10:44:14
> I'm unable to check http://darcs.net/maintenance to see if this version is
> supported.
> If it is is supported, please report this to bugs at darcs.net
> If possible include the output of 'darcs --exact-version'.
>

Thanks for trying darcs on OpenSolaris and reporting your findings.

Looking at line 347 in SlurpDirectory, I see that this depends on mmap.
Could it be possible that we need a Workaround for mmap on your platform?

Could you please try building again but this time add --disable-mmap to your
configure and then tell us if you get the same results.

Is this a machine which could be used as a buildbot slave?  I think
OpenSolaris is somewhat exotic and we don't yet have a slave running it so
it could be quite valuable to darcs development and to keeping your machine
supported.

See here for more details about buildbots:
http://lists.osuosl.org/pipermail/darcs-devel/2008-April/007942.html
http://buildbot.net/repos/release/README

You can talk to Zooko to for more details about getting setup and any to
also answer other questions you might have.
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