October 2018 - Glasgow-haskell-users

Re: [ANNOUNCE] GHC 8.4.4 released
by Carter Schonwald 26 Oct '18

26 Oct '18

Hey David, i'm looking at the git history andit doesn't seem to have any commits between 8.4.3 and 8.4.4 related to the dataToTag issue does any haskell code in the while trigger the bug on 8.4 series? On Sun, Oct 21, 2018 at 11:06 AM David Feuer <david(a)well-typed.com> wrote: > Did this release fix the dataToTag# issue? I think that has a number of > people concerned. > On Oct 18, 2018, at 11:46 AM, Ben Gamari <ben(a)well-typed.com> wrote: >> >> Jens Petersen <juhpetersen(a)gmail.com> writes: >> >> On Mon, 15 Oct 2018 at 07:17, Ben Gamari <ben(a)well-typed.com> wrote: >>> >>>> The GHC team is pleased to announce the availability of GHC 8.4.4 >>>> >>> >>> Thank you >>> >>> As always, the full release notes can be found in the users guide, >>>> >>> >>> https://downloads.haskell.org/~ghc/8.4.4/docs/html/users_guide/8.4.4-notes.… >>> >>> I think this base text is out of date, and could be dropped, right? >> >> >> Indeed it is. >> >> I see that stm was also bumped: though it is not listed in >>> https://downloads.haskell.org/~ghc/8.4.4/docs/html/users_guide/8.4.4-notes.… >> >> >> Also true. However, in my mind this isn't nearly as significant as the >> `text` bump, which affects many users and fixes extremely bad >> misbehavior. >> >> Thanks for noticing these! >> >> Cheers >> >> - Ben >> >> ------------------------------ >> >> 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 >

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Happy / Alex description for Haskell2010
by Sam Halliday 25 Oct '18

25 Oct '18

Hello all, Is there a Happy / Alex file describing Haskell2010? I can see the versions in the ghc source tree, but of course they support all the ghc extensions. The link to the hsparser page [1] in the Happy documentation doesn't seem to exist anymore. I would also love to hear if there is a Bison definition. Best regards, Sam [1] http://www.pms.informatik.uni-muenchen.de/mitarbeiter/panne/haskell_libs/hs…

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[ANNOUNCE] GHC 8.6.1 released
by Ben Gamari 20 Oct '18

20 Oct '18

Hello everyone, The GHC team is pleased to announce the availability of GHC 8.6.1, the fourth major release in the GHC 8 series. The source distribution, binary distributions, and documentation for this release are available at https://downloads.haskell.org/~ghc/8.6.1 The 8.6 release fixes over 400 bugs from the 8.4 series and introduces a number of exciting features. These most notably include: * A new deriving mechanism, `deriving via`, providing a convenient way for users to extend Haskell's typeclass deriving mechanism * Quantified constraints, allowing forall quantification in constraint contexts * An early version of the GHCi `:doc` command * The `ghc-heap-view` package, allowing introspection into the structure of GHC's heap * Valid hole fit hints, helping the user to find terms to fill typed holes in their programs * The BlockArguments extension, allowing the `$` operator to be omitted in some unambiguous contexts * An exciting new plugin mechanism, source plugins, allowing plugins to inspect and modify a wide variety of compiler representations. * Improved recompilation checking when plugins are used * Significantly better handling of macOS linker command size limits, avoiding linker errors while linking large projects * The next phase of the MonadFail proposal, enabling -XMonadFailDesugaring by default A full list of the changes in this release can be found in the release notes: https://downloads.haskell.org/~ghc/8.6.1/docs/html/users_guide/8.6.1-notes.… Perhaps of equal importance, GHC 8.6 is the second major release made under GHC's accelerated six-month release schedule and the first set of binary distributions built primarily using our new continuous integration scheme. While the final 8.6 release is around three weeks later than initially scheduled due to late-breaking bug reports, we expect that the 8.8 release schedule shouldn't be affected. Thanks to everyone who has contributed to developing, documenting, and testing this release! As always, let us know if you encounter trouble. How to get it ~~~~~~~~~~~~~ The easy way is to go to the web page, which should be self-explanatory: https://www.haskell.org/ghc/ We supply binary builds in the native package format for many platforms, and the source distribution is available from the same place. Packages will appear as they are built - if the package for your system isn't available yet, please try again later. Background ~~~~~~~~~~ Haskell is a standard lazy functional programming language. GHC is a state-of-the-art programming suite for Haskell. Included is an optimising compiler generating efficient code for a variety of platforms, together with an interactive system for convenient, quick development. The distribution includes space and time profiling facilities, a large collection of libraries, and support for various language extensions, including concurrency, exceptions, and foreign language interfaces. GHC is distributed under a BSD-style open source license. A wide variety of Haskell related resources (tutorials, libraries, specifications, documentation, compilers, interpreters, references, contact information, links to research groups) are available from the Haskell home page (see below). On-line GHC-related resources ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Relevant URLs on the World-Wide Web: GHC home page https://www.haskell.org/ghc/ GHC developers' home page https://ghc.haskell.org/trac/ghc/ Haskell home page https://www.haskell.org/ Supported Platforms ~~~~~~~~~~~~~~~~~~~ The list of platforms we support, and the people responsible for them, is here: https://ghc.haskell.org/trac/ghc/wiki/Contributors Ports to other platforms are possible with varying degrees of difficulty. The Building Guide describes how to go about porting to a new platform: https://ghc.haskell.org/trac/ghc/wiki/Building Developers ~~~~~~~~~~ We welcome new contributors. Instructions on accessing our source code repository, and getting started with hacking on GHC, are available from the GHC's developer's site run by Trac: https://ghc.haskell.org/trac/ghc/ Mailing lists ~~~~~~~~~~~~~ We run mailing lists for GHC users and bug reports; to subscribe, use the web interfaces at https://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-tickets There are several other haskell and ghc-related mailing lists on www.haskell.org; for the full list, see https://mail.haskell.org/cgi-bin/mailman/listinfo Some GHC developers hang out on #haskell on IRC, too: https://www.haskell.org/haskellwiki/IRC_channel Please report bugs using our bug tracking system. Instructions on reporting bugs can be found here: https://www.haskell.org/ghc/reportabug

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Help inform GHC's development priorities
by Ben Gamari 18 Oct '18

18 Oct '18

tl;dr. Please a take a minute to express your thoughts on GHC's development priorities via this survey [1]. Hello everyone, The GHC developers want to ensure that we are working on problems that of most importance to you, the Haskell community. To this end we are surveying the community [1], asking how our users interact with GHC and which problems need to be addressed most urgently. We hope you will take a few minutes to give us your thoughts [1]. Thanks in advance for your time and, finally, thanks to the financial supporters that make our work GHC possible. Cheers, - Ben and the rest of the GHC developers [1] https://docs.google.com/forms/d/e/1FAIpQLSdh7sf2MqHoEmjt38r1cxCF-tV76OFCJqU…

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[ANNOUNCE] GHC 8.4.4 released
by Ben Gamari 18 Oct '18

18 Oct '18

Hello everyone, The GHC team is pleased to announce the availability of GHC 8.4.4, a patch-level release in the 8.4 series. The source distribution, binary distributions, and documentation for this release are available at https://downloads.haskell.org/~ghc/8.4.4 This release fixes several bugs present in 8.4.3 These include, - A bug which could result in memory unsafety with certain uses of `touch#` has been resolved. (#14346) - A compiler panic triggered by some GADT record updates has been fixed (#15499) - The `text` library has been updated, fixing several serious bugs in the version shipped with GHC 8.4.3 (see `text` issues #227, #221, and #197. - A serious code generation bug in the LLVM code generation, potentially resulting in incorrect evaluation of floating point expressions, has been fixed (#14251) As always, the full release notes can be found in the users guide, https://downloads.haskell.org/~ghc/8.4.4/docs/html/users_guide/8.4.4-notes.… Thanks to everyone who has contributed to developing, documenting, and testing this release! As always, let us know if you encounter trouble. How to get it ~~~~~~~~~~~~~ The easy way is to go to the web page, which should be self-explanatory: https://www.haskell.org/ghc/ We supply binary builds in the native package format for many platforms, and the source distribution is available from the same place. Packages will appear as they are built - if the package for your system isn't available yet, please try again later. Background ~~~~~~~~~~ Haskell is a standard lazy functional programming language. GHC is a state-of-the-art programming suite for Haskell. Included is an optimising compiler generating efficient code for a variety of platforms, together with an interactive system for convenient, quick development. The distribution includes space and time profiling facilities, a large collection of libraries, and support for various language extensions, including concurrency, exceptions, and foreign language interfaces. GHC is distributed under a BSD-style open source license. A wide variety of Haskell related resources (tutorials, libraries, specifications, documentation, compilers, interpreters, references, contact information, links to research groups) are available from the Haskell home page (see below). On-line GHC-related resources ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Relevant URLs on the World-Wide Web: GHC home page https://www.haskell.org/ghc/ GHC developers' home page https://ghc.haskell.org/trac/ghc/ Haskell home page https://www.haskell.org/ Supported Platforms ~~~~~~~~~~~~~~~~~~~ The list of platforms we support, and the people responsible for them, is here: https://ghc.haskell.org/trac/ghc/wiki/Contributors Ports to other platforms are possible with varying degrees of difficulty. The Building Guide describes how to go about porting to a new platform: https://ghc.haskell.org/trac/ghc/wiki/Building Developers ~~~~~~~~~~ We welcome new contributors. Instructions on accessing our source code repository, and getting started with hacking on GHC, are available from the GHC's developer's site run by Trac: https://ghc.haskell.org/trac/ghc/ Mailing lists ~~~~~~~~~~~~~ We run mailing lists for GHC users and bug reports; to subscribe, use the web interfaces at https://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-tickets There are several other haskell and ghc-related mailing lists on www.haskell.org; for the full list, see https://mail.haskell.org/cgi-bin/mailman/listinfo Some GHC developers hang out on #haskell on IRC, too: https://www.haskell.org/haskellwiki/IRC_channel Please report bugs using our bug tracking system. Instructions on reporting bugs can be found here:

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