[ANNOUNCE] GHC 9.6.1-alpha3 is now available

George Colpitts george.colpitts at gmail.com
Tue Feb 14 15:21:45 UTC 2023


I get a strange warning on MacOS when I do ./configure:

checking Xcode version... xcode-select: error: tool 'xcodebuild' requires
Xcode, but active developer directory '/Library/Developer/CommandLineTools'
is a command line tools instance
not found (too old?)

I also get a related strange warning when I do a compile:

ghc hello.hs
[1 of 2] Compiling Main             ( hello.hs, hello.o ) [Missing object
[2 of 2] Linking hello [Objects changed]
ld: warning: directory not found for option

I'm on macOS 13.2.1. I was previously on ghc 9.4.4.


On Tue, Feb 14, 2023 at 9:39 AM Ben Gamari <ben at well-typed.com> wrote:

> The GHC team is very pleased to announce the availability of GHC
> 9.6.1-alpha3.
> As usual, binaries and source distributions are available at
> downloads.haskell.org:
>     https://downloads.haskell.org/ghc/9.6.1-alpha3/
> Beginning with GHC 9.6.1, GHC can be built as a cross-compiler to
> WebAssembly and JavaScript. This is an important step towards robust
> support for compiling Haskell to the Web, but there are a few caveats to
> be aware of in the 9.6 series:
>  - Both the Javascript and WebAssembly backends are still at an early
>    stage of development and are present in this release as a technology
> preview
>  - Using GHC as a cross-compiler is not as easy as we would like it to
>    be; in particular, there are challenges related to Template Haskell
>  - GHC is not yet run-time retargetable; a given GHC binary targets
>    exactly one platform, and both WebAssembly and JavaScript are considered
>    platforms for this purpose. Cross-compilers must be built from source by
>    their users
> We hope to lift all of these limitations in future releases.
> Additionally, 9.6.1 will include:
>  - Significant latency improvements in the non-moving garbage collector
>  - Efficient runtime support for delimited continuations
>  - Improvements in compiler error messages
>  - Numerous improvements in the compiler's memory usage
> See the [release notes] for a comprehensive accounting of changes in this
> release.
> As always, one can find a [migration guide] to aid in transitioning from
> older
> releases on the GHC Wiki. We have also recently started extending our
> release process to cover a wider set of Linux distributions. In
> particular, we now offer Rocky 8 and Ubuntu 20.04 binary distributions
> which cover RedHat-derivative and distributions using older `glibc`
> releases (namely 2.27), respectively.
> Please do give this release a try and open a [ticket] if you see anything
> amiss.
> Cheers,
> - Ben
> [ticket]: https://gitlab.haskell.org/ghc/ghc/issues/
> [migration guide]:
> https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.6
> [release notes]:
> https://downloads.haskell.org/ghc/9.6.1-alpha3/docs/users_guide/9.6.1-notes.html
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/glasgow-haskell-users/attachments/20230214/f6736842/attachment.html>

More information about the Glasgow-haskell-users mailing list