497496 – dev-haskell/cgi-3001.1.8.4 - Network/CGI/Monad.hs:123:10: Could not deduce (Functor m) arising from a use of `try' from the context (MonadCGI m, MonadCatchIO m) bound by the type signature for tryCGI :: (MonadCGI m, MonadCatchIO m) => m a -> m (Either ...

Bug 497496 - dev-haskell/cgi-3001.1.8.4 - Network/CGI/Monad.hs:123:10: Could not deduce (Functor m) arising from a use of `try' from the context (MonadCGI m, MonadCatchIO m) bound by the type signature for tryCGI :: (MonadCGI m, MonadCatchIO m) => m a -> m (Either ...

Summary: dev-haskell/cgi-3001.1.8.4 - Network/CGI/Monad.hs:123:10: Could not deduce (F...

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Development (show other bugs)
Hardware:	All Linux

Importance:	Normal normal
Assignee:	Gentoo's Haskell Language team

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2014-01-08 05:37 UTC by Jason Mours
Modified:	2014-01-11 15:01 UTC (History)
CC List:	0 users

See Also:
Package list:
Runtime testing required:	---

Attachments
build.log (cgi-3001.1.8.4-build.log,6.30 KB, text/plain) 2014-01-08 05:37 UTC, Jason Mours	Details
emerge-info (cgi-3001.1.8.4-emerge.info,17.86 KB, text/plain) 2014-01-08 05:38 UTC, Jason Mours	Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Jason Mours 2014-01-08 05:37:41 UTC

Created attachment 367358 [details]
build.log

dev-haskell/cgi-3001.1.8.4 is failing emerge with the following:

[4 of 8] Compiling Network.CGI.Monad ( Network/CGI/Monad.hs, dist/build/Network/CGI/Monad.o )

Network/CGI/Monad.hs:123:10:
    Could not deduce (Functor m) arising from a use of `try'
    from the context (MonadCGI m, MonadCatchIO m)
      bound by the type signature for
                 tryCGI :: (MonadCGI m, MonadCatchIO m) =>
                           m a -> m (Either SomeException a)
      at Network/CGI/Monad.hs:122:11-75
    Possible fix:
      add (Functor m) to the context of
        the type signature for
          tryCGI :: (MonadCGI m, MonadCatchIO m) =>
                    m a -> m (Either SomeException a)
    In the expression: try
    In an equation for `tryCGI': tryCGI = try

: Posting build.log

Comment 1 Jason Mours 2014-01-08 05:38:02 UTC

Created attachment 367360 [details]
emerge-info

Comment 2 Sergei Trofimovich (RETIRED) gentoo-dev

2014-01-11 15:01:11 UTC

(what is odd) the failure is only gentoo-haskell overlay-specific
due to monadcatchio-mtl slight breakage.

Pushed as:
> 11 Jan 2014; Sergei Trofimovich <slyfox@gentoo.org> +cgi-3001.1.8.4-r1.ebuild,
> +files/cgi-3001.1.8.4-mci.patch:
> . Fix build failure against latest monadcatchio-mtl-0.3.1.0 (bug #497496 by
> Jason Mours).

Thank you!