[ANNOUNCE] GHC 8.8.1 and cabal-install version

Fri Sep 6 16:48:42 UTC 2019

I got there by doing,
```
  cabal v2-install --installdir=~/.cabal/bin alex
  cabal v2-install --installdir=~/.cabal/bin happy
```
and things seemed to be going smoothly enough after that.

On Fri, Sep 6, 2019 at 12:08 PM Carter Schonwald <carter.schonwald at gmail.com>
wrote:

> V1 or v2 install?
>
> On Mon, Sep 2, 2019 at 11:42 AM George Colpitts <george.colpitts at gmail.com>
> wrote:
>
>> https://www.haskell.org/ghc/blog/20190825-ghc-8.8.1-released.html says
>>
>> cabal-install users should note that cabal-install-3.0 or later is
>> required for use with GHC 8.8.
>>
>> but this seems wrong or have I done something wrong?
>>
>> $ cabal install cabal-install
>> cabal install cabal-install
>> ...
>>
>> Resolving dependencies...
>> cabal: Could not resolve dependencies:
>> [__0] trying: cabal-install-3.0.0.0 (user goal)
>> [__1] next goal: time (dependency of cabal-install)
>> [__1] rejecting: time-1.9.3/installed-1.9... (conflict: cabal-install =>
>> base>=4.8 && <4.13, time => base==4.13.0.0/installed-4.1...)
>> [__1] trying: time-1.9.3
>> [__2] next goal: stm (dependency of cabal-install)
>> [__2] rejecting: stm-2.5.0.0/installed-2.5... (conflict: cabal-install =>
>> base>=4.8 && <4.13, stm => base==4.13.0.0/installed-4.1...)
>> [__2] trying: stm-2.5.0.0
>> [__3] next goal: process (dependency of cabal-install)
>> [__3] rejecting: process-1.6.5.1/installed-1.6... (conflict:
>> cabal-install =>
>> base>=4.8 && <4.13, process => base==4.13.0.0/installed-4.1...)
>> [__3] trying: process-1.6.5.1
>> [__4] next goal: pretty (dependency of cabal-install)
>> [__4] rejecting: pretty-1.1.3.6/installed-1.1... (conflict: cabal-install
>> =>
>> base>=4.8 && <4.13, pretty => base==4.13.0.0/installed-4.1...)
>> [__4] trying: pretty-1.1.3.6
>> [__5] next goal: network (dependency of cabal-install)
>> [__5] rejecting: network-3.1.0.1/installed-CeX... (conflict:
>> cabal-install =>
>> base>=4.8 && <4.13, network => base==4.13.0.0/installed-4.1...)
>> [__5] trying: network-3.1.0.1
>> [__6] trying: hackage-security-0.5.3.0 (dependency of cabal-install)
>> [__7] next goal: template-haskell (dependency of hackage-security)
>> [__7] rejecting: template-haskell-2.15.0.0/installed-2.1... (conflict:
>> cabal-install => base>=4.8 && <4.13, template-haskell =>
>> base==4.13.0.0/installed-4.1...)
>> [__7] rejecting: template-haskell-2.15.0.0, template-haskell-2.14.0.0,
>> template-haskell-2.13.0.0, template-haskell-2.12.0.0,
>> template-haskell-2.11.1.0, template-haskell-2.11.0.0,
>> template-haskell-2.10.0.0, template-haskell-2.9.0.0,
>> template-haskell-2.8.0.0,
>> template-haskell-2.7.0.0, template-haskell-2.6.0.0,
>> template-haskell-2.5.0.0,
>> template-haskell-2.4.0.1, template-haskell-2.4.0.0,
>> template-haskell-2.3.0.1,
>> template-haskell-2.3.0.0, template-haskell-2.2.0.0 (constraint from
>> non-upgradeable package requires installed instance)
>> [__7] fail (backjumping, conflict set: cabal-install, hackage-security,
>> template-haskell)
>> After searching the rest of the dependency tree exhaustively, these were
>> the
>> goals I've had most trouble fulfilling: base, cabal-install, directory,
>> template-haskell, process, time, network, pretty, hackage-security,
>> deepseq,
>> HTTP, stm, cabal-install:lib
>>
>>
>> On Mon, Aug 26, 2019 at 6:25 AM Ben Gamari <ben at well-typed.com> wrote:
>>
>>>
>>> Hello everyone,
>>>
>>> The GHC team is pleased to announce the release candidate for GHC 8.8.1.
>>> The source distribution, binary distributions, and documentation are
>>> available at
>>>
>>>     https://downloads.haskell.org/ghc/8.8.1
>>>
>>> This release is the culmination of over 3000 commits by over one hundred
>>> contributors and has several new features and numerous bug fixes
>>> relative to GHC 8.6:
>>>
>>>  * Visible kind applications are now supported (GHC Proposal #15)
>>>
>>>  * Profiling now works correctly on 64-bit Windows (although still may
>>>    be problematic on 32-bit Windows due to platform limitations; see
>>>    #15934)
>>>
>>>  * A new code layout algorithm for amd64's native code generator
>>>    significantly improving the runtime performance of some kernels
>>>
>>>  * The introduction of a late lambda-lifting pass which may reduce
>>>    allocations significantly for some programs.
>>>
>>>  * Further work on Trees That Grow, enabling improved code re-use of the
>>>    Haskell AST in tooling
>>>
>>>  * Users can write `forall` in more contexts (GHC Proposal #7)
>>>
>>>  * The pattern-match checker is now more precise in the presence of
>>>    strict fields with uninhabited types.
>>>
>>>  * A comprehensive audit of GHC's memory ordering barriers has been
>>>    performed, resulting in a number of fixes that should significantly
>>>    improve the reliability of programs on architectures with
>>>    weakly-ordered memory models (e.g. PowerPC, many ARM and AArch64
>>>    implementations).
>>>
>>>  * A long-standing linker limitation rendering GHCi unusable with
>>>    projects with cyclic symbol dependencies has been fixed (#13786)
>>>
>>>  * Further work on the Hadrian build system
>>>
>>>  * Countless miscellaneous bug-fixes
>>>
>>> Unfortunately, due to a build issue (#17108) found late in the release
>>> process
>>> i386 Windows builds are currently unavailable. These will be provided in
>>> the coming weeks.
>>>
>>> As always, if anything looks amiss do let us know.
>>>
>>> Happy compiling!
>>>
>>> Cheers,
>>>
>>> - Ben
>>>
>>>
>>> [1]
>>> https://downloads.haskell.org/ghc/8.8.1/docs/html/users_guide/8.8.1-notes.html
>>> _______________________________________________
>>> Glasgow-haskell-users mailing list
>>> Glasgow-haskell-users at haskell.org
>>> http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
>>>
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