Thanks Ben!
There seems to be a regression in ghc / cabal integration in 9.2.1.
In 9.2.1 if I do
cabal install vector
Compilation of a file containing
import Data.Vector
main = undefined
fails with
Could not find module ‘Data.Vector’
Perhaps you meant Data.Functor (from base-4.16.0.0)
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
|
2 | import Data.Vector
| ^^^^^^^^^^^^^^^^^^
The preceding works on ghc 9.0.1
Should I file a bug against Cabal?
Thanks
George
On Fri, Oct 29, 2021 at 12:54 PM Ben Gamari
Hi all,
The GHC developers are very happy to at long last announce the availability of GHC 9.2.1. Binary distributions, source distributions, and documentation are available at
https://downloads.haskell.org/ghc/9.2.1
GHC 9.2 brings a number of exciting features including:
* A native code generation backend for AArch64, significantly speeding compilation time on ARM platforms like the Apple M1.
* Many changes in the area of records, including the new `RecordDotSyntax` and `NoFieldSelectors` language extensions, as well as Support for `DuplicateRecordFields` with `PatternSynonyms`.
* Introduction of the new `GHC2021` language extension set, giving users convenient access to a larger set of language extensions which have been long considered stable.
* Merging of `ghc-exactprint` into the GHC tree, providing infrastructure for source-to-source program rewriting out-of-the-box.
* Introduction of a `BoxedRep` `RuntimeRep`, allowing for polymorphism over levity of boxed objects (#17526)
* Implementation of the `UnliftedDataTypes` extension, allowing users to define types which do not admit lazy evaluation ([proposal])
* The new [`-hi` profiling] mechanism which provides significantly improved insight into thunk leaks.
* Support for the `ghc-debug` out-of-process heap inspection library [ghc-debug]
* Significant improvements in the bytecode interpreter, allowing more programs to be efficently run in GHCi and Template Haskell splices.
* Support for profiling of pinned objects with the cost-centre profiler (#7275)
* Faster compilation and a smaller memory footprint
* Introduction of Haddock documentation support in TemplateHaskell (#5467)
Finally, thank you to Microsoft Research, GitHub, IOHK, the Zw3rk stake pool, Tweag I/O, Serokell, Equinix, SimSpace, and other anonymous contributors whose on-going financial and in-kind support has facilitated GHC maintenance and release management over the years. Moreover, this release would not have been possible without the hundreds of open-source contributors whose work comprise this release.
As always, do open a [ticket] if you see anything amiss.
Happy testing,
- Ben
[apple-m1]: https://www.haskell.org/ghc/blog/20210309-apple-m1-story.html [proposal]: https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0265-un... [-hi https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0265-un... profiling]: https://well-typed.com/blog/2021/01/first-look-at-hi-profiling-mode/ [ghc-debug https://well-typed.com/blog/2021/01/first-look-at-hi-profiling-mode/%5Bghc-d...]: http://ghc.gitlab.haskell.org/ghc-debug/ [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs