Bug? Haskell GHC wont' work since ghc@8.6?

Bug? Haskell GHC wont' work since ghc@8.6?

[John Soo]

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Hi yasu,  

  
This question comes up on the mailing list every so often, but I don’t think it is a bug. I want to be able to choose the c toolchain ghc uses myself. I would rather introduce some Haskell specific documentation.
  

  
We discussed during the guix day that we would love to have some language specific setup documentation. I had issues like this in mind.
  

  
- John   
  
  
  
  

  
     

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bug#45778: Bug? Haskell GHC wont' work since ghc@8.6?

[yasu]

Hi John,

Oh, I see!  I wonder if it possible to have a more convinient

haskell-for-a-casual-developer like package or:

parameterize the command itself, say:
guix install ghc -option1=blah, -option2=blah,
and provide default options as well?

In the very least, a warning message explaining this after:
guix install ghc

Might do.

Lots of ideas :-)

Cheers,
yasu





On Sun, 2021-01-10 at 22:18 -0800, John Soo wrote:
> Hi yasu,
> 
> This question comes up on the mailing list every so often, but I
> don’t think it is a bug. I want to be able to choose the c toolchain
> ghc uses myself. I would rather introduce some Haskell specific
> documentation.
> 
> We discussed during the guix day that we would love to have some
> language specific setup documentation. I had issues like this in
> mind.
> 
> - John 

Re: Bug? Haskell GHC wont' work since ghc@8.6?

[zimoun]

Hi John,

On Sun, 10 Jan 2021 at 22:18, John Soo <jsoo1@asu.edu> wrote:

> This question comes up on the mailing list every so often, but I don’t
> think it is a bug. I want to be able to choose the c toolchain ghc
> uses myself. I would rather introduce some Haskell specific
> documentation.

Choosing the C toolchain and propagating one are not really related.  I
mean, one C toolchain could be propagated by default, so then GHC works
out-of-the-box.  And the build transformation ’--with-c-toolchain’
should provide the flexibility to use any other C toolchain variant you
want.  Is it not working as expected?


All the best,
simon

Re: Bug? Haskell GHC wont' work since ghc@8.6?

[John Soo]

Hi zimoun,

zimoun <zimon.toutoune@gmail.com> writes:

> Choosing the C toolchain and propagating one are not really related.

Good point.

> I mean, one C toolchain could be propagated by default, so then GHC works
> out-of-the-box.  And the build transformation ’--with-c-toolchain’
> should provide the flexibility to use any other C toolchain variant you
> want.  Is it not working as expected?

As is, ghc does not work after guix install ghc. gcc-toolchain must be
installed alongside it to work.  Maybe the reason for this was to not
propagate particular versions of the gcc-toolchain and possibly conflict
with others.

Thanks!

John

Re: Bug? Haskell GHC wont' work since ghc@8.6?

[Vincent Legoll]

Hello,

should the following issues be merged together ?

45776
45777
45778

-- 
Vincent Legoll

Re: Bug? Haskell GHC wont' work since ghc@8.6?

[John Soo]

     
 

 Some should be closed, and bug-guix should be removed from the thread.
     

Bug? Haskell GHC wont' work since ghc@8.6?

[yasu]

This one ought to be very simple to solve (or at least confirm).   Does
anyone use Haskell daily?

I am a very casual user of Haskell (GHC) and when I tried to compile
something just now, I noticed that it can't even compile the simplest
possible program..., unless I downgrade to ghc@8.4 or lower. Newer
versions, including ghc@8.6.5, didn't work, throwing the error message
below instead.

~/co/haskell-tiny-intro/exercise (master *)$ cat a.hs
main = putStrLn "a"

~/co/haskell-tiny-intro/exercise (master *)$ ghc a.hs
Linking a ...
.gcc-wrapped: error: unrecognized command line option '-no-pie'
`gcc' failed in phase `C Compiler'. (Exit code: 1)

Cheers,
Yasu

Re: Bug? Haskell GHC wont' work since ghc@8.6?

[John Soo]

     Hi yasu, 

 
Compiling with ghc requires a c toolchain (like gcc-toolchain) installed to work. Can you try again after installing gcc-toolchain?    Ghc has not been perfect for me recently but I use it quite a lot.
 

 
Hope that helps,
 

 
John
     

Re: Bug? Haskell GHC wont' work since ghc@8.6?

[yasu]

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Hi John,
Thank you, after installing gcc-toolchain, it worked!
Then this is indeed a bug that should be very simple to fix?   Just
require gcc-toolchain (or some of its required features) as a GHC's
dependency?
I am also curious, what kind of testing (if any?) does Guix perform for
packages??  Or is GHC already marked as broken?
(Apology for repeated question marks :-))
~/co/haskell-tiny-intro/exercise (master *)$ guix install gcc-
toolchain...~/co/haskell-tiny-intro/exercise (master *)$ ghc a.hs[1 of
1] Compiling Main             ( a.hs, a.o )Linking a ...~/co/haskell-
tiny-intro/exercise (master *)$ ghc --versionThe Glorious Glasgow
Haskell Compilation System, version 8.8.3
Cheers,
Yasu
On Sun, 2021-01-10 at 21:49 -0800, John Soo wrote:

> Hi yasu,
> Compiling with ghc requires a c toolchain (like gcc-toolchain)
> installed to work. Can you try again after installing gcc-toolchain?
>  Ghc has not been perfect for me recently but I use it quite a lot.
> 
> Hope that helps,
> 
> John

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