- ghc-devs - Haskell.org

Re: Installing GHC on my MacBook Air
by George Colpitts 15 Mar '23

15 Mar '23

cc'ing others On Wed, Mar 15, 2023 at 1:20 PM George Colpitts <george.colpitts(a)gmail.com> wrote: > Thanks Brandon. There were some earlier emails that somehow got dropped > from this. > > I believe we have already solved the wrong architecture issue; this is the > next issue. > > Here is the earlier email: > > I just noticed that you said you installed a binary distribution. If for > example you chose the 9.4.4 distribution at > https://www.haskell.org/ghc/download_ghc_9_4_4.html#macosx_x86_64 you > should choose one of: > > > - ghc-9.4.4-aarch64-apple-darwin.tar.xz > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-aarch64-apple-darwin.tar…> (187.0 > MB, sig > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-aarch64-apple-darwin.tar…> > ) > - ghc-9.4.4-aarch64-apple-darwin.tar.bz2 > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-aarch64-apple-darwin.tar…> (300.0 > MB, sig > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-aarch64-apple-darwin.tar…> > ) > > rather than > > > - ghc-9.4.4-x86_64-apple-darwin.tar.xz > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-x86_64-apple-darwin.tar.…> (177.9 > MB, sig > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-x86_64-apple-darwin.tar.…> > ) > - ghc-9.4.4-x86_64-apple-darwin.tar.bz2 > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-x86_64-apple-darwin.tar.…> (281.9 > MB, sig > <https://downloads.haskell.org/~ghc/9.4.4/ghc-9.4.4-x86_64-apple-darwin.tar.…> > ) > > > On Wed, Mar 15, 2023 at 1:10 PM Brandon Allbery <allbery.b(a)gmail.com> > wrote: > >> That seems unlikely; it would report a permission error in that case, >> not that it had the wrong architecture. >> >> On Wed, Mar 15, 2023 at 12:04 PM George Colpitts >> <george.colpitts(a)gmail.com> wrote: >> > >> > Hi Bill >> > >> > I'm cc'ing GHC dev and GHC users as someone else may have a better >> answer, catch a mistake I made etc. Please don't delete them. >> > >> > I believe you have encountered >> https://gitlab.haskell.org/ghc/ghc/-/issues/21506#note_447206 >> > >> > I believe the way to fix this is to do the following: >> > >> > rm -fr /usr/local/bin/ghc* >> > rm -fr /usr/local/lib/ghc* >> > ./configure >> > sudo xattr -rc . >> > sudo make install >> > >> > >> > However I am unsure why you are encountering this as the issue is >> supposed to have been fixed. >> > >> > Cheers >> > George >> > >> > >> > >> > >> > >> > On Wed, Mar 15, 2023 at 11:21 AM William McEnaney < >> bill.mcenaney.jr(a)gmail.com> wrote: >> >> >> >> Hi, George, >> >> >> >> I got this message when I ran make install with the sudo command. What >> should I do? >> >> >> >> libHSterminfo-0.4.1.5-ghc9.4.4.dylib” can’t be opened because Apple >> cannot check it for malicious software. >> >> >> >> >> >> What should I do now? >> >> >> >> >> >> Thanks. >> >> >> >> >> >> Bill >> >> >> >> >> >> >> >> >> >> On Wed, Mar 15, 2023 at 9:29 AM William McEnaney < >> bill.mcenaney.jr(a)gmail.com> wrote: >> >>> >> >>> Hi George, >> >>> >> >>> Thank you for your reply. I forget what I did to install it. But the >> compiler and other ghc-related programs live in /usr/local/bin. Since I >> installed the wrong binaries, I changed the directory to /usr/local/bin and >> tried to empty that directory with rm -rf ghc*.*, but that didn't delete >> anything. So I wonder whether I'll need to remove those programs before >> reinstalling ghc. >> >>> >> >>> Thanks for your help, too. >> >>> >> >>> Best, >> >>> Bill >> >>> >> >>> On Wed, Mar 15, 2023 at 7:59 AM George Colpitts < >> george.colpitts(a)gmail.com> wrote: >> >>>> >> >>>> Hi Bill >> >>>> >> >>>> Yes,GHC will run on your new MacBook Air. The cpu in that is Apple >> Silicon , the aarch64-apple-darwin platform. Older Macs run on Intel chips, >> the x86_64-apple-darwin platform. >> >>>> >> >>>> I'm not sure how you installed the compiler. I believe the standard >> way is described on https://www.haskell.org/ghcup/. Can you tell us how >> you installed it? >> >>>> >> >>>> Thanks >> >>>> George >> >>>> >> >>>> On Wed, Mar 15, 2023 at 8:22 AM Simon Peyton Jones < >> simon.peytonjones(a)gmail.com> wrote: >> >>>>> >> >>>>> Redirecting this query to ghc-devs. Can anyone help William? >> Thanks! >> >>>>> >> >>>>>> Will GHC run on my new MacBook Air? After installing the compiler, >> my laptop said its processor was wrong for the binary distribution I chose. >> If there is a dmg file for MacOS 12.5.1, please please link your reply to >> it. >> >>>>> >> >>>>> >> >>>>> Simon >> >>>>> >> >>>>> On Tue, 14 Mar 2023 at 23:33, William McEnaney < >> bill.mcenaney.jr(a)gmail.com> wrote: >> >>>>>> >> >>>>>> Dear Dr. Jones, >> >>>>>> >> >>>>>> Will GHC run on my new MacBook Air? After installing the compiler, >> my laptop said its processor was wrong for the binary distribution I chose. >> If there is a dmg file for MacOS 12.5.1, please please link your reply to >> it. >> >>>>>> >> >>>>>> Thanks for your help. >> >>>>>> >> >>>>>> Best, >> >>>>>> Bill >> >>>>> >> >>>>> _______________________________________________ >> >>>>> ghc-devs mailing list >> >>>>> ghc-devs(a)haskell.org >> >>>>> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >> > >> > _______________________________________________ >> > ghc-devs mailing list >> > ghc-devs(a)haskell.org >> > http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >> >> >> >> -- >> brandon s allbery kf8nh >> allbery.b(a)gmail.com >> >

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Coordination on FreeBSD CI, default WinIO and Info Tables profiling work
by Hécate 15 Mar '23

15 Mar '23

Hi everyone, I have created topical aggregators of tickets that go beyond the rhythm of releases (aka. "epics") for the following topics: * Info Tables Profiling: https://gitlab.haskell.org/groups/ghc/-/epics/3 * Setting WinIO "on" by default: https://gitlab.haskell.org/groups/ghc/-/epics/4 * FreeBSD CI revival: https://gitlab.haskell.org/groups/ghc/-/epics/5 These epics have no deadline and their purpose is to track the evolution of our workload for certain "big" tasks that go beyond a single ticket. They are also useful as they are a (albeit imprecise) tool to help determine after the fact the magnitude of a project and the efforts it took. This will certainly be helpful for future estimations. And finally their prime purpose is to enable more awareness about our co-contributors work, so that we get all a better sense of what it takes to do certain things. :) Please do feel free to create your own for projects that are not fit for a single milestone (or are not related to release milestones at all). Cheers, Hécate -- Hécate ✨ 🐦: @TechnoEmpress IRC: Hecate WWW: https://glitchbra.in RUN: BSD

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Help! Can't build HEAD
by Simon Peyton Jones 15 Mar '23

15 Mar '23

Aargh! I can't build HEAD! I get this: ./hadrian/build Up to date ]0;Starting... ]0;Finished in 0.04s Error, file does not exist and no rule available: utils/hpc/hpc-bin.cabal Build failed. This is after hadrian/build clean ./boot ./configure I'm very stalled. All my trees are borked. Can anyone help? Simon

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Re: Installing GHC on my MacBook Air
by George Colpitts 15 Mar '23

15 Mar '23

Spam detection software, running on the system "mail.haskell.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Hi Bill I just noticed that you said you installed a binary distribution. If for example you chose the 9.4.4 distribution at https://www.haskell.org/ghc/download_ghc_9_4_4.html#macosx_x86_64 you should choose one of: [...] Content analysis details: (5.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (george.colpitts[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 5.0 UNWANTED_LANGUAGE_BODY BODY: Message written in an undesired language 0.0 HTML_MESSAGE BODY: HTML included in message 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% [score: 0.5000] 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid The original message was not completely plain text, and may be unsafe to open with some email clients; in particular, it may contain a virus, or confirm that your address can receive spam. If you wish to view it, it may be safer to save it to a file and open it with an editor.

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Re: Installing GHC on my MacBook Air
by Simon Peyton Jones 15 Mar '23

15 Mar '23

Redirecting this query to ghc-devs. Can anyone help William? Thanks! Will GHC run on my new MacBook Air? After installing the compiler, my > laptop said its processor was wrong for the binary distribution I chose. If > there is a dmg file for MacOS 12.5.1, please please link your reply to it. > Simon On Tue, 14 Mar 2023 at 23:33, William McEnaney <bill.mcenaney.jr(a)gmail.com> wrote: > Dear Dr. Jones, > > Will GHC run on my new MacBook Air? After installing the compiler, my > laptop said its processor was wrong for the binary distribution I chose. If > there is a dmg file for MacOS 12.5.1, please please link your reply to it. > > Thanks for your help. > > Best, > Bill >

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GHC API documentation
by Harendra Kumar 14 Mar '23

14 Mar '23

Hi, There used to be a GHC API documentation along with other documentation in the GHC release. But I cannot find it any more. For example, in GHC 9.6.1 this link - https://downloads.haskell.org/ghc/9.6.1/docs/libraries/ghc/index.html is broken. What happened to this? Is this now available at some alternate location? -harendra

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Call for Talks: Haskell Implementors' Workshop 2023
by Ryan Scott 08 Mar '23

08 Mar '23

ACM SIGPLAN Haskell Implementors' Workshop https://icfp23.sigplan.org/home/hiw-2023 Seattle, Washington, United States, September 4, 2023 Co-located with ICFP 2023 https://icfp23.sigplan.org/ Important dates --------------- Deadline: July 4, 2023 (AoE) Notification: August 4, 2023 Workshop: September 4, 2023 The 15th Haskell Implementors' Workshop is to be held alongside ICFP 2023 this year in Seattle. It is a forum for people involved in the design and development of Haskell implementations, tools, libraries, and supporting infrastructure to share their work and to discuss future directions and collaborations with others. Talks and/or demos are proposed by submitting an abstract, and selected by a small program committee. There will be no published proceedings. The workshop will be informal and interactive, with open spaces in the timetable and room for ad-hoc discussion, demos, and short lightning talks. Scope and target audience ------------------------- It is important to distinguish the Haskell Implementors' Workshop from the Haskell Symposium which is also co-located with ICFP 2023. The Haskell Symposium is for the publication of Haskell-related research. In contrast, the Haskell Implementors' Workshop will have no proceedings -- although we will aim to make talk videos, slides, and presented data available with the consent of the speakers. The Implementors' Workshop is an ideal place to describe a Haskell extension, describe works-in-progress, demo a new Haskell-related tool, or even propose future lines of Haskell development. Members of the wider Haskell community are encouraged to attend the workshop -- we need your feedback to keep the Haskell ecosystem thriving. Students working with Haskell are especially encouraged to share their work. The scope covers any of the following topics. There may be some topics that people feel we've missed, so by all means submit a proposal even if it doesn't fit exactly into one of these buckets: * Compilation techniques * Language features and extensions * Type system implementation * Concurrency and parallelism: language design and implementation * Performance, optimisation and benchmarking * Virtual machines and run-time systems * Libraries and tools for development or deployment Talks ----- We invite proposals from potential speakers for talks and demonstrations. We are aiming for 20-minute talks with 5 minutes for questions and changeovers. We want to hear from people writing compilers, tools, or libraries, people with cool ideas for directions in which we should take the platform, proposals for new features to be implemented, and half-baked crazy ideas. Please submit a talk title and abstract of no more than 300 words. Submissions can be made via HotCRP at https://icfphiw23.hotcrp.com until July 4 (anywhere on earth). We will also have a lightning talks session. These have been very well received in recent years, and we aim to increase the time available to them. Lightning talks should be ~7mins and are scheduled on the day of the workshop. Suggested topics for lightning talks are to present a single idea, a work-in-progress project, a problem to intrigue and perplex Haskell implementors, or simply to ask for feedback and collaborators. Program Committee ----------------- * Gergő Érdi (Standard Chartered Bank) * Sebastian Graf (Karlsruhe Institute of Technology) * Wen Kokke (University of Strathclyde) * Ryan Scott (Galois, Inc.) * Rebecca Skinner (Mercury) * Li-yao Xia (University of Edinburgh) Contact ------- * Ryan Scott <ryan.gl.scott at gmail.com>

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[ANNOUNCE] GHC 9.6.1-rc1 is now available
by Ben Gamari 03 Mar '23

03 Mar '23

The GHC team is very pleased to announce the availability of the first (and likely final) release candidate of GHC 9.6.1. As usual, binaries and source distributions are available at [downloads.haskell.org](https://downloads.haskell.org/ghc/9.6.1-rc1/). 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][migration-guide]. 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. If all goes well we expect the final release should be available by late next week. Happy Haskelling, ~ 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-rc1/docs/users_guide/9.6.1-notes.ht…

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[Haskell] [ANNOUNCE] GHC 9.2.7 released
by Zubin Duggal 27 Feb '23

27 Feb '23

The GHC developers are happy to announce the availability of GHC 9.2.7. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org](https://downloads.haskell.org/ghc/9.2.7). Download Page: https://www.haskell.org/ghc/download_ghc_9_2_7.html Blog Post: https://www.haskell.org/ghc/blog/20230227-ghc-9.2.7-released.html This release is primarily a bugfix release addressing a few issues found in 9.2.6. These include: * A fix for a bug with the RTS linker being unable to resolve the `setKeepCafs` symbol which started being used by the GHC library in 9.2.6, resulting in code depending on this symbol failing to load in GHCi or via a compile time splice when using a statically linked GHC, such as on Windows (#22961). * A fix a bug with the alignment of RTS data structures that could result in segfaults when compiled with high optimisation settings on certain platforms (#22975 , #22965). * A fix for a bug in the simplifier related to placeholder values (rubbish literals) emitted by the worker/wrapper optimisation leading to -dcore-lint errors and compiler panics in certain cases (#19882, #22914, #23000). * Easier installation of binary distribution on MacOS platforms by changing the installation Makefile to remove the quarantine attribute when installing. * ... and a few more. See the [release notes] for a full accounting. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, Haskell Foundation, and other anonymous contributors whose on-going financial and in-kind support has facilitated GHC maintenance and release management over the years. Finally, this release would not have been possible without the hundreds of open-source contributors whose work comprise this release. As always, do give this release a try and open a [ticket][] if you see anything amiss. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.2.7/docs/html/users_guide/9.2.7-notes.…

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Status of ghcup?
by Dominick Samperi 21 Feb '23

21 Feb '23

I watched an interesting YouTube video explaining how to install and use the Haskell extension in VS code, but the information appears to be obsolete, because there is no mention of ghcup, and ghcup is now required, along with a new version of the Haskell extension (the old one is labeled "legacy"). Unfortunately, I could not install ghcup on Windows due to obscure PowerShell security issues, or missing libraries in MSYS. While wrestling with this problem I discovered that Unix tools from Rtools must not be in PATH while working with Stack, probably due to incompatible MSYS versions. But removing Rtools from PATH does not resolve the ghcup installation problems. Any tips on ghcup installation under Windows would be appreciated. Thanks, Dominick

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