Re: [eclipsefp-develop] EclipseFP 2.6.3 on OS X Yosemite and LunaSR1, GHC 7.8.3

[Randall B. <r.b...@au...>]

Hi

It really seems that ³happy² is in the path from the point of view of
everything except haskell-src-exts, for 2 reasons:
1) /etc/paths contains an entry for the directory where the happy
executable resides.
2) The try to find happy finds it (i.e. the button under
Preferences/Haskell/Haskell executables/Happy.

Nevertheless, haskell-src-exts can¹t find it.

Any way of telling what path haskell-src-exts is seeing? Any other tips?

Regards,
Randall
    



Re: [eclipsefp-develop] EclipseFP 2.6.3 on OS X Yosemite and LunaSR1, GHC
7.8.3 
From: JP Moresmau 
The haskell-src-exts gotcha on happy is annoying a lot of people (-:, see
https://github.com/haskell-suite/haskell-src-exts/issues/14.

Mind that on MacOS, GUI applications do not have the same PATH as the
shell, so double check the PATH in Eclipse is really what you think it is.

JP

On Thu, Jan 22, 2015 at 4:40 AM, Randall Britten <r.britten@...>
wrote:

>  Hi
>
>  I¹m having difficulty getting EclipseFP working on Luna-SR1 on OS X
> Yosemite 10.10.1.
>
>  When launching, a few things seem to build, but then the console
> displays:
>
> Resolving dependencies...
>
> Configuring haskell-src-exts-1.16.0.1...
>
> Failed to install haskell-src-exts-1.16.0.1
>
> Build log ( /Users/rbri053/.cabal/logs/haskell-src-exts-1.16.0.1.log ):
>
> Configuring haskell-src-exts-1.16.0.1...
>
> setup-Simple-Cabal-1.21.1.0-x86_64-osx-ghc-7.8.3: The program 'happy'
> version
>
> >=1.17 is required but it could not be found.
>
> cabal: Error: some packages failed to install:
>
> haskell-src-exts-1.16.0.1 failed during the configure step. The exception
> was:
>
> ExitFailure 1
>
> stylish-haskell-0.5.11.0 depends on haskell-src-exts-1.16.0.1 which
>failed
> to
>
> install.
>
>
>  I had it working nicely for a few weeks on an earlier version of
> EclipseFP (v2.6) (so thanks for the hard work done to make this excellent
> piece of software!)
> (Full version string for the version I am trying to get working:  FP:
> Haskell support for Eclipse 2.6.3.201501121809
> net.sf.eclipsefp.haskell.feature.group The EclipseFP Project)
>
>  Some other weird behaviour:
> Under Preferences/Haskell/Haskell Implementations, the list is blank,
>even
> if the entry for GHC 7.8.3 appeared in the previous session.
> I have ghc, cabal and happy in the path (added there by adding entries to
> /etc/paths)
>
>  Thanks in advance.
> Regards,
> Randall