1. #26564 <https://gitlab.haskell.org/ghc/ghc/-/issues/26564>
On Wed, Nov 12, 2025 at 2:54 AM Zubin Duggal <[email protected]> wrote: > Can you open a ticket for this please? > > On 25/11/11 14:17, George Colpitts wrote: > >Thanks Zubin. I found a small problem; hopefully it is unique to me: > > > > % ghc --version > >The Glorious Glasgow Haskell Compilation System, version 9.12.2.20251110 > > > >% ghc -O2 -fllvm prob214ff.hs > >Loaded package environment from > >/Users/gcolpitts/.ghc/aarch64-darwin-9.12.2.20251110/environments/default > >[1 of 2] Compiling Main ( prob214ff.hs, prob214ff.o ) [Missing > >object file] > ><no location info>: warning: [GHC-66599] > > GHC was not configured with a supported LLVM toolchain > > Make sure you have installed LLVM between [13 and 20) and reinstall > GHC > >to ensure -fllvm works > > > > > ><no location info>: error: > > Warning: Couldn't figure out LLVM version! > > Make sure you have installed LLVM between [13 and 20) > > > > > >Failed to detect LLVM version! > >Make sure LLVM is installed correctly. > >We will try though... > ><no location info>: error: LLVM Optimiser: could not execute: > > > >Although llvm 21 is not supported my understanding is that it is supposed > >to try as it says above. I do have llvm installed: > > > > opt --version > >Homebrew LLVM version 21.1.5 > > Optimized build. > > Default target: arm64-apple-darwin25.1.0 > > Host CPU: apple-m4 > >(base) gcolpitts@Mac haskell % > > > >Plus configure also thinks I have it installed: > > > >checking for llc... llc > >checking llc version (21.1.5) is between 13 and 20... no > >configure: We only support llvm 13 upto 20 (non-inclusive) *(found > 21.1.5).* > >checking for opt-19... no > >checking for opt-19.0... no > >checking for opt19... no > >checking for opt-18... no > >checking for opt-18.0... no > >checking for opt18... no > >checking for opt-17... no > >checking for opt-17.0... no > >checking for opt17... no > >checking for opt-16... no > >checking for opt-16.0... no > >checking for opt16... no > >checking for opt-15... no > >checking for opt-15.0... no > >checking for opt15... no > >checking for opt-14... no > >checking for opt-14.0... no > >checking for opt14... no > >checking for opt-13... no > >checking for opt-13.0... no > >checking for opt13... no > >checking for opt... opt > >checking opt version (21.1.5) is between 13 and 20... no > >configure: We only support llvm 13 upto 20 (non-inclusive) > >checking for llc... llc > >checking llc version (21.1.5) is between 13 and 20... no > >configure: We only support llvm 13 upto 20 (non-inclusive) *(found > 21.1.5).* > >checking for opt-19... no > >checking for opt-19.0... no > >checking for opt19... no > >checking for opt-18... no > >checking for opt-18.0... no > >checking for opt18... no > >checking for opt-17... no > >checking for opt-17.0... no > >checking for opt17... no > >checking for opt-16... no > >checking for opt-16.0... no > >checking for opt16... no > >checking for opt-15... no > >checking for opt-15.0... no > >checking for opt15... no > >checking for opt-14... no > >checking for opt-14.0... no > >checking for opt14... no > >checking for opt-13... no > >checking for opt-13.0... no > >checking for opt13... no > >checking for opt... opt > >checking opt version (21.1.5) is between 13 and 20... no > >configure: We only support llvm 13 upto 20 (non-inclusive) *(found > 21.1.5).* > > > >Suggestions? > > > >Thanks > >George > > > > > >On Tue, Nov 11, 2025 at 4:02 AM Zubin Duggal <[email protected]> > wrote: > > > >> The GHC developers are very pleased to announce the availability > >> of the second release candidate for GHC 9.12.3. Binary distributions, > >> source > >> distributions, and documentation are available at [ > downloads.haskell.org][] > >> and > >> via [GHCup](https://www.haskell.org/ghcup/). > >> > >> GHC 9.12.3 is a bug-fix release fixing several issues of a variety of > >> severities and scopes. A full accounting of these fixes can be found in > the > >> [release notes][]. As always, GHC's release status, including planned > >> future > >> releases, can be found on the GHC Wiki [status][]. > >> > >> This release candidate will have a two-week testing period. If all goes > >> well > >> the final release will be available the week of 24 November 2025. > >> > >> The changes from the first release candidate are > >> > >> * Fix a regression resulting in a panic with empty cases (#26442, > #25960). > >> * Fix for a potential segfault in the bytecode interpreter (#23210). > >> * Fix for a regression with tabs not being allowed in string gaps > (#26415). > >> * Fix for a crash with the non-moving GC (#26204). > >> * A rework of how internal symbols used by the code-generator are > handled > >> to > >> adapt to changes in the Apple toolchain, enabling this release to > >> bootstrap on > >> macOS 26 Tahoe (#26166). > >> > >> GHC development is sponsored by: > >> > >> * [Juspay](https://juspay.com/) > >> * [QBayLogic](https://qbaylogic.com/) > >> * [Channable](https://www.channable.com/) > >> * [Haskell Foundation](https://haskell.foundation/) > >> * [Serokell](https://serokell.io/) > >> * [Well-Typed](https://well-typed.com/) > >> * [Tweag](https://www.tweag.io/) > >> * [Dotcom-Monitor](https://www.dotcom-monitor.com/) > >> * [LoadView](https://www.loadview-testing.com/) > >> * [Web Hosting Buddy](https://webhostingbuddy.com/) > >> * [Find My Electric](https://www.findmyelectric.com/) > >> * [Standard Chartered](https://www.sc.com) > >> * [UpCloud](https://upcloud.com) > >> > >> We would like to that these sponsors 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. > >> > >> [release notes]: > >> > https://gitlab.haskell.org/ghc/ghc/-/blob/ghc-9.12/docs/users_guide/9.12.3-notes.rst?ref_type=heads&plain=1 > >> [status]: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status > >> [downloads.haskell.org]: https://downloads.haskell.org/ghc/9.12.3-rc2 > >> [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new > >> _______________________________________________ > >> ghc-devs mailing list -- [email protected] > >> To unsubscribe send an email to [email protected] > >> >
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