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Newbie trying to install yesod

Haskell on Reddit - Sun, 07/06/2014 - 7:12am

Hi /r/haskell,

I'm very new to Haskell. I don't know if this is the right place to ask questions so bear with me. I'd like to install yesod (Ubuntu 12.04-64) via

cabal install yesod-platform yesod-bin --max-backjumps=-1 --reorder-goals (straight from yesod website)

Whenever I run this command, I get the following message:

Resolving dependencies... Killed

and yesod doesn't get installed. What's happening? How can I solve this?

BTW, is yesod a good framework? What do you guys mostly prefer; snap or yesod or something else?


submitted by threading
[link] [4 comments]
Categories: Incoming News

Most powerful high(est) level programming language?

Haskell on Reddit - Sun, 07/06/2014 - 3:39am

Here is an interesting article from 2001 on the 'power' of Lisp:

And a nice comparison article from 2009 on the 'power' of Haskell:

They are interesting to read as if written by the same programmer on a 20 year quest to find 'powerful' language(s).

It got me thinking about the breakdown of 'relative power' of the highest level languages in terms of criteria scored in these articles, like expressiveness, efficiency of code, ability to (easily) solve notoriously difficult or complex problems, etc. Is it fair to rank Haskell as the 'highest level power language' for 'high level' tasks, given that not all high level languages are equally powerful? Sorry for the vague circular logic here, but I'm just attempting to pass along the opinions of these articles with minimal interpretation.

I know that the answer depends on what you plan to do with the language. Let me remain vague by saying a general purpose language for 'very high level' tasks given modern environment and lessons learned.

submitted by RaymondWies
[link] [28 comments]
Categories: Incoming News

Signal Processing Library

haskell-cafe - Sat, 07/05/2014 - 11:03pm
Hi, There is also a signal processing package on Hackage [1] which performs auto_correlation. FFT is has been moved from hmatrix to hmatrix-gsl [2]. Hope this helps. Cheers, Vivian [1] <> [2] <> Date: Fri, 4 Jul 2014 10:19:51 -0700 _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe< at >
Categories: Offsite Discussion

ghc, tls, gmp

glasgow-user - Sat, 07/05/2014 - 10:04pm
Hi, in Debian, we have the (well-known) problem of linking against libraries using libgmp, in this case haskell-curl, which links against libcurl, which links against gnutls, which uses libgmp since the latest release: Are there any viable solutions to this problem that I might not be aware of? Are there any solutions to be expected in the near future? (My best idea so far is to use libcurl linked against openssl, but this causes licensing issues.) Greetings, Joachim
Categories: Offsite Discussion

CFP: PRDC2014 Call for Fast Abstracts / Industry Track Papers / Posters

General haskell list - Sat, 07/05/2014 - 2:44am
PRDC2014 Call for Fast Abstracts / Industry Track Papers / Posters Singapore Nov.18-21,2014 --------------------------------- Call for Fast Abstracts --------------------------------- Fast Abstracts at PRDC are short oral presentations, either on new ideas or work in progress, or opinion pieces that can address any issue relevant to dependable systems and networks. Because they are brief and have a later deadline, Fast Abstracts enable their authors to: .Summarise work that is not yet complete .Put forward novel or challenging ideas .State positions on controversial issues .Suggest new approaches to the solution of open problems Thus, they provide an excellent opportunity to introduce new work, or present radical opinions, and receive early feedback from the community. Contributions are particularly solicited from industrial practitioners and academics that may not have been able to prepare full papers du
Categories: Incoming News

HART 2014 - deadline extended

General haskell list - Fri, 07/04/2014 - 3:11pm
We extended the deadline until 12th July. ========================================= CALL FOR PAPERS Second Workshop on Haskell And Rewriting Techniques (HART 2014) To be held on September 5, co-located with ICFP 2014, the Haskell Symposium, etc., in Gothenburg. Haskell is an advanced purely-functional programming language. Pure functional programming is programming with equations, often defined by pattern-matching. Rewriting is the science of replacing equals by equals and thus a very powerful method for dealing with equations, often constructor-based. There are strong connections between Haskell (or generally, pure functional) programming and rewriting. The purpose of the HART workshop is to foster those connections. In addition to an invited talk by Oleg Kiselyov, we plan a half day of discussions, in an informal setting, on how Haskell (and related languages) and rewriting techniques and theories can cross-fert
Categories: Incoming News

Final Call for Papers: OCL 2014 Submissions Due in OneWeek

General haskell list - Thu, 07/03/2014 - 4:15pm
(Apologies for duplicates) CALL FOR PAPERS 14th International Workshop on OCL and Textual Modeling Applications and Case Studies (OCL 2014) Co-located with ACM/IEEE 17th International Conference on Model Driven Engineering Languages and Systems (MODELS 2014) September 28-30 (tbc), 2014, VALENCIA, SPAIN Modeling started out with UML and its precursors as a graphical notation. Such visual representations enable direct intuitive capturing of reality, but some of their features are difficult to formalize and lack the level of precision required to create complete and unambiguous specifications. Limitations of the graphical notations encouraged the development of text-based modeling languages that either integrate with or replace graphical notations for modeling. Typical examples of such languages are OCL, textual MOF, Epsilon, and Alloy. Textual modeling languages have thei
Categories: Incoming News

Haskell Weekly News: Issue 298

General haskell list - Thu, 07/03/2014 - 6:59am
Welcome to issue 298 of the HWN, an issue covering crowd-sourced bits of information about Haskell from around the web. This issue covers from June 15 to 28, 2014 Quotes of the Week * Kinnison * imagines a radio station playing only things like 'Life tru a Lens', stuff by 'Dire States' or 'Monadonna' Top Reddit Stories * Today I published an introductory book on Haskell Data Analysis Domain:, Score: 99, Comments: 26 Original: [1] On Reddit: [2] * Backpack: An ML-like module system for Haskell Domain:, Score: 76, Comments: 44 Original: [3] On Reddit: [4] * Cgrep, a context-aware grep for source code. Domain:, Score: 67, Comments: 13 Original: [5] On Reddit: [6] * Teenage Haskell Domain:, Score: 63, Comments: 7 Original: [7]
Categories: Incoming News

New gtk2hs 0.12.4 release

gtk2hs - Wed, 11/21/2012 - 12:56pm

Thanks to John Lato and Duncan Coutts for the latest bugfix release! The latest packages should be buildable on GHC 7.6, and the cairo package should behave a bit nicer in ghci on Windows. Thanks to all!


Categories: Incoming News