On Fri, 2009-12-18 at 23:01 +, Ozgur Akgun wrote:
> Hi,
>
> When I run cabal install zlib or cabal upgrade zlib I get the
> following error:
>
> Resolving dependencies...
> Configuring zlib-0.5.2.0...
> Preprocessing library zlib-0.5.2.0...
> Only one output file may be specified
We'll need
Thanks for the feedback.
I guess the following part is the problematic part: (But I've no idea how to
resolve it)
Creating dist/build (and its parents)
Creating dist/build/autogen (and its parents)
Preprocessing library zlib-0.5.2.0...
Creating dist/build/Codec/Compression/Zlib (and its parents)
I actually ran into this problem last night. Here's my workaround (note that
it involves downgrading to zlib-0.5.0.0
1) unregister the zlib-0.5.2.0 package (prompt> ghc-pkg unregister zlib-0.5.2.0)
2) rebuild and install cabal-install:
prompt> tar -zxvf
~/.cabal/packages/hackage.haskell
> From: Felipe Lessa
>
> On Fri, Dec 18, 2009 at 02:13:02PM +, John Lato wrote:
>> So now the program needs a result of some type (String in your
>> example) and gets an undefined, and then immediately crashes
>> with an "Exception - undefined" error.
>
> I think this is the second time this i
I have looked at the recently released Control.Failure library but I
admit, I couldn't understand it completely. So given the example
below, how would Control.Failure help me here?
Thanks,
nt
-- Theirs (other library code stubs)
data TheirError = TheirErrorCase deriving Show
data TheirData = Th
---
Haskell Weekly News
http://sequence.complete.org/hwn/20091219
Issue 144 - December 19, 2009
---
Welcome to issue 144 of HWN, a newsletter covering
On Sat, Dec 19, 2009 at 4:46 PM, ntupel wrote:
> I have looked at the recently released Control.Failure library but I
> admit, I couldn't understand it completely. So given the example
> below, how would Control.Failure help me here?
>
> Thanks,
> nt
>
>
> -- Theirs (other library code stubs)
> d
On Dec 19, 5:14 pm, Michael Snoyman wrote:
>
> Well, here's one way of doing it. You have lots of choices here; these are
> the decisions I made in implementing the code:
>
> * myFuncB no longer lives in the IO monad. I wasn't sure if you specifically
> wanted that, but now it can work with *any*
Ketil Malde wrote:
András Mocsáry writes:
Now we have a problem, which is most generally fixed in these ways:
C-like:
switch ( x )
{
Case 0:
"Unchecked"
Case 1:
"Checked"
Case 2:
"Unknown"
Default:
"Nothing"
}
This is not a fix, this is a workaround for a design bug, namely that
x is
Sean Leather wrote:
I can see what's going on: it can't tell that the "a" I am writing there
is the same "a" that's in the type specification, but is there any way that
I can make it identify "a" with the "a" in the specification for nextPtr?
Lexically scoped type variables:
http://www.haskel
Happstack 0.4.1 STABLE is now available.
We recommend that all users of Happstack update to 0.4.1
immediately. Migration from Happstack 0.3 should be trivial. There was
one race condition in happstack-state which could cause a state event
to fail under heavy congestion.
Happstack is the Haskell
On Sat, 2009-12-19 at 09:39 +, Ozgur Akgun wrote:
> I guess the following part is the problematic part: (But I've no idea
> how to resolve it)
[..]
> --lflag=-lm --lflag=-lffi --lflag=-lgmp --lflag=-ldl *-o
> dist/build/Codec/Compression/Zlib/Stream.hs
> Codec/Compression/Zlib/Stream.hsc*
>
> GHC 6.12 currently requires a minor patch to HJScript. Details here:
HJScript-0.4.5 is now on hackage, fixing this problem. Thanks for the heads-up.
Cheers,
/Niklas
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Hi,
I'm trying to make a program to make it easy to rename files in bulk.
What I'm wondering is how to get a list of all files in a particular
directory. I found System.Posix.Files and I'm planning on using the
rename function in it for actually renaming, but I can't find an easy
way to get al
Look in System.Directory; specifically, getDirectoryContents should do what
you want. You might also check out the FileManip package, which provides some
convenient functionality for finding all files which match a particular pattern.
Cheers,
Greg
On Dec 19, 2009, at 6:40 PM, Eitan Goldshtrom
Thanks.
This looks like exactly what I was looking for. I feel silly for not
finding it myself. =P
-Eitan
Gregory Crosswhite wrote:
Look in System.Directory; specifically, getDirectoryContents should do what
you want. You might also check out the FileManip package, which provides some
co
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