Fix typo by zlonast · Pull Request #11632 · haskell/cabal

zlonast · 2026-03-18T12:00:16Z

Fix typo

Template B: This PR does not modify behaviour or interface

E.g. the PR only touches documentation or tests, does refactorings, etc.

Include the following checklist in your PR:

Patches conform to the coding conventions.
Is this a PR that fixes CI? If so, it will need to be backported to older cabal release branches (ask maintainers for directions).

zlonast · 2026-03-18T12:06:21Z

@philderbeast It seems like these are just typos that needed to be removed, right?

...uite/PackageTests/SDist/Respect-Project-File/Projects-Default-No/cabal.ignore-project.v2.out

.github/pull_request_template.md

philderbeast · 2026-03-18T14:13:07Z

It seems like these are just typos that needed to be removed, right?

For the contributing link, yes, but I don't think that is the case for the test .out files. Those may need to be regenerated or suppressed by the *.test.hs files running the test.

philderbeast · 2026-03-18T14:17:42Z

I reran the tests and the output uses <ROOT>.

$ cabal run cabal-testsuite:cabal-tests -- --with-cabal=./dist-newstyle/build/x86_64-linux/ghc-9.14.1/cabal-install-3.17.0.0/
x/cabal/build/cabal/cabal cabal-testsuite/PackageTests/SDist/Respect-Project-File/Projects-Default-No/cabal.ignore-project.v2
.test.hs --accept

$ cabal run cabal-testsuite:cabal-tests -- --with-cabal=./dist-newstyle/build/x86_64-linux/ghc-9.14.1/cabal-install-3.17.0.0/
x/cabal/build/cabal/cabal cabal-testsuite/PackageTests/SDist/Respect-Project-File/Projects-Default-No/cabal.no-project.v2.tes
t.hs --accept

Here's the patch for the updated test output:

0001-Rerun-tests-to-get-normalised-output.patch

philderbeast

I tried a couple of the relative links (not all of them) on your branch and they do indeed work.

geekosaur · 2026-03-18T16:38:25Z

The failure's a network error trying to download prerequisites for Rocky Linux; it probably just needs to be retried in an hour or so.

zlonast · 2026-03-18T19:16:01Z

Hmmm, maybe this is an internet error? log

Rerun tests to get normalised output Co-authored-by: Phil de Joux <philderbeast@gmail.com>

geekosaur · 2026-03-18T19:37:09Z

No, that's Windows locking a file on ghc-pkg.exe, probably due to Windows Defender scanning it. Retrying usually works. Bodigrim's cleaning up various versions of it within cabal, but ghc-pkg.exe is GHC's problem.

mergify · 2026-03-21T07:57:47Z

Bodigrim · 2026-03-21T10:41:19Z

I cannot make head or tails of the doctest CI job, failing in Mergify batch:


29s
Run make doctest
  make doctest
  shell: /usr/bin/bash -e {0}
  env:
    GHC_FOR_QUICK_JOBS: 9.10.3
    DATE: 2026-03-21
cd Cabal-syntax && cabal doctest
Resolving dependencies...
Build profile: -w ghc-9.10.3 -O1
In order, the following will be built (use -v for more details):
 - doctest-0.24.3 (lib) (requires build)
 - doctest-0.24.3 (exe:doctest) (requires build)
Starting     doctest-0.24.3 (lib)
Building     doctest-0.24.3 (lib)
Installing   doctest-0.24.3 (lib)
Completed    doctest-0.24.3 (lib)
Starting     doctest-0.24.3 (exe:doctest)
Building     doctest-0.24.3 (exe:doctest)
Installing   doctest-0.24.3 (exe:doctest)
Completed    doctest-0.24.3 (exe:doctest)
Copying 'doctest' to
'/home/runner/.cabal/doctest/ghc-9.10.3-47ff012bb450f30bde9bedda9325d5f1/doctest-0.24.3'
doctest version 0.24.3
using version 9.10.3 of the GHC API
using /usr/local/.ghcup/ghc/9.10.3/bin/ghc-9.10.3
Configuration is affected by cabal.project at '/home/runner/work/cabal/cabal'.
Resolving dependencies...
Build profile: -w ghc-9.10.3 -O1
In order, the following will be built (use -v for more details):
 - alex-3.5.4.1 (exe:alex) (requires download & build)
 - random-1.2.1.3 (lib) (requires download & build)
 - QuickCheck-2.14.3 (lib) (requires download & build)
 - Cabal-syntax-3.17.0.0 (interactive) (lib) (first run)
Downloading  random-1.2.1.3
Downloaded   random-1.2.1.3
Downloading  alex-3.5.4.1
Starting     random-1.2.1.3 (lib)
Downloaded   alex-3.5.4.1
Downloading  QuickCheck-2.14.3
Starting     alex-3.5.4.1 (exe:alex)
Downloaded   QuickCheck-2.14.3
Building     random-1.2.1.3 (lib)
Building     alex-3.5.4.1 (exe:alex)
Installing   random-1.2.1.3 (lib)
Completed    random-1.2.1.3 (lib)

Failed to build exe:alex from alex-3.5.4.1.
Build log (
/home/runner/.cabal/logs/ghc-9.10.3/alex-3.5.4.1-e-alex-7ee3d5ee6f6e6c7cf9914d6692f2e223a1594e16da6381b7085b5e637600d754.log
):
Configuring executable 'alex' for alex-3.5.4.1...
Preprocessing executable 'alex' for alex-3.5.4.1...
Error: [Cabal-4123]
The program 'happy' is required but it could not be found

Error: [Cabal-7125]
Failed to build exe:alex from alex-3.5.4.1 (which is required by Cabal-syntax-3.17.0.0). See the build log above for details.

make: *** [Makefile:153: doctest] Error 1
Error: Process completed with exit code 2.

alex-3.5.4.1 is freshly released today, but I don't see anything suspicious in the changelog.

zlonast · 2026-03-21T12:17:10Z

I may get another error as well.

ilya@MBP cabal % make doctest
cd Cabal-syntax && cabal doctest
Warning: this is a debug build of cabal-install with assertions enabled.
Warning: this is a debug build of cabal-install with assertions enabled.
Warning: this is a debug build of cabal-install with assertions enabled.
Resolving dependencies...
Build profile: -w ghc-9.12.2 -O1
In order, the following will be built (use -v for more details):
 - doctest-0.24.3 (lib) (requires build)
 - doctest-0.24.3 (exe:doctest) (requires build)
Starting     doctest-0.24.3 (lib)
Building     doctest-0.24.3 (lib)
Installing   doctest-0.24.3 (lib)
Completed    doctest-0.24.3 (lib)
Starting     doctest-0.24.3 (exe:doctest)
Building     doctest-0.24.3 (exe:doctest)
Installing   doctest-0.24.3 (exe:doctest)
Completed    doctest-0.24.3 (exe:doctest)
Copying 'doctest' to
'/Users/ilya/.cache/cabal/doctest/ghc-9.12.2-0efc304c4845b860557ccee5275eaed2/doctest-0.24.3'
doctest version 0.24.3
using version 9.12.2 of the GHC API
using /Users/ilya/.ghcup/ghc/9.12.2/bin/ghc-9.12.2
Warning: this is a debug build of cabal-install with assertions enabled.
Configuration is affected by cabal.project at
'/Users/ilya/haskell/cabal'.
Resolving dependencies...
Build profile: -w ghc-9.12.2 -O1
In order, the following will be built (use -v for more details):
 - alex-3.5.4.1 (exe:alex) (requires build)
 - Cabal-syntax-3.17.0.0 (interactive) (lib) (cannot read state cache)
Starting     alex-3.5.4.1 (exe:alex)
Building     alex-3.5.4.1 (exe:alex)

Failed to build exe:alex from alex-3.5.4.1.
Build log (
/Users/ilya/.cache/cabal/logs/ghc-9.12.2/lx-3.5.4.1-eb99ddb7.log ):
Warning: this is a debug build of cabal-install with assertions enabled.
Configuring executable 'alex' for alex-3.5.4.1...
Warning: this is a debug build of cabal-install with assertions enabled.
Preprocessing executable 'alex' for alex-3.5.4.1...
Error: [Cabal-4123]
The program 'happy' is required but it could not be found
Error: [Cabal-7125]
Failed to build exe:alex from alex-3.5.4.1 (which is required by Cabal-syntax-3.17.0.0). See the build log above for details.
make: *** [doctest] Error 1
ilya@MBP cabal % happy
zsh: command not found: happy
ilya@MBP cabal % alex
zsh: command not found: alex
ilya@MBP cabal % cabal install happy
Warning: this is a debug build of cabal-install with assertions enabled.
Resolving dependencies...
Build profile: -w ghc-9.12.2 -O1
In order, the following will be built (use -v for more details):
 - happy-2.2 (exe:happy) (requires build)
Starting     happy-2.2 (exe:happy)
Building     happy-2.2 (exe:happy)
Installing   happy-2.2 (exe:happy)
Completed    happy-2.2 (exe:happy)
Symlinking 'happy' to '/Users/ilya/.local/bin/happy'
ilya@MBP cabal % cabal install alex
Warning: this is a debug build of cabal-install with assertions enabled.
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/Cabal-3.17.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/Cabal-described-3.17.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/Cabal-syntax-3.17.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/Cabal-hooks-3.17.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/cabal-install-3.17.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/cabal-install-solver-3.17.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/buildinfo-reference-generator-0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/Cabal-QuickCheck-3.17.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/Cabal-tests-3.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/Cabal-tree-diff-3.17.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/cabal-validate-1.0.0.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/cabal-testsuite-3.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/cabal-benchmarks-3.tar.gz
Wrote tarball sdist to
/Users/ilya/haskell/cabal/dist-newstyle/sdist/solver-benchmarks-3.tar.gz
Resolving dependencies...
Build profile: -w ghc-9.12.2 -O1
In order, the following will be built (use -v for more details):
 - alex-3.5.4.1 (exe:alex) (requires build)
Starting     alex-3.5.4.1 (exe:alex)
Building     alex-3.5.4.1 (exe:alex)

Failed to build exe:alex from alex-3.5.4.1.
Build log (
/Users/ilya/.cache/cabal/logs/ghc-9.12.2/lx-3.5.4.1-5431f9b3.log ):
Warning: this is a debug build of cabal-install with assertions enabled.
Configuring executable 'alex' for alex-3.5.4.1...
Warning: this is a debug build of cabal-install with assertions enabled.
Preprocessing executable 'alex' for alex-3.5.4.1...
Error: [Cabal-4123]
The program 'alex' is required but it could not be found
Error: [Cabal-7125]
Failed to build exe:alex from alex-3.5.4.1. See the build log above for details.
ilya@MBP cabal % cabal install alex --overwrite-policy=always --ignore-project                     
Warning: this is a debug build of cabal-install with assertions enabled.
Resolving dependencies...
Build profile: -w ghc-9.12.2 -O1
In order, the following will be built (use -v for more details):
 - alex-3.5.4.1 (exe:alex) (requires build)
Starting     alex-3.5.4.1 (exe:alex)
Building     alex-3.5.4.1 (exe:alex)

Failed to build exe:alex from alex-3.5.4.1.
Build log (
/Users/ilya/.cache/cabal/logs/ghc-9.12.2/lx-3.5.4.1-5743b20d.log ):
Warning: this is a debug build of cabal-install with assertions enabled.
Configuring executable 'alex' for alex-3.5.4.1...
Warning: this is a debug build of cabal-install with assertions enabled.
Preprocessing executable 'alex' for alex-3.5.4.1...
Error: [Cabal-4123]
The program 'alex' is required but it could not be found
Error: [Cabal-7125]
Failed to build exe:alex from alex-3.5.4.1. See the build log above for details.
ilya@MBP cabal % cabal install alex-3.5.4.0 --overwrite-policy=always --ignore-project
Warning: this is a debug build of cabal-install with assertions enabled.
Resolving dependencies...
Symlinking 'alex' to '/Users/ilya/.local/bin/alex'
ilya@MBP cabal % make doctest                                                         
cd Cabal-syntax && cabal doctest
Warning: this is a debug build of cabal-install with assertions enabled.
Warning: this is a debug build of cabal-install with assertions enabled.
doctest version 0.24.3
using version 9.12.2 of the GHC API
using /Users/ilya/.ghcup/ghc/9.12.2/bin/ghc-9.12.2
Warning: this is a debug build of cabal-install with assertions enabled.
Configuration is affected by cabal.project at
'/Users/ilya/haskell/cabal'.
Resolving dependencies...
Build profile: -w ghc-9.12.2 -O1
In order, the following will be built (use -v for more details):
 - alex-3.5.4.1 (exe:alex) (requires build)
 - Cabal-syntax-3.17.0.0 (interactive) (lib) (cannot read state cache)
Starting     alex-3.5.4.1 (exe:alex)
Building     alex-3.5.4.1 (exe:alex)
Installing   alex-3.5.4.1 (exe:alex)
Completed    alex-3.5.4.1 (exe:alex)
Warning: this is a debug build of cabal-install with assertions enabled.
Configuring library for Cabal-syntax-3.17.0.0...
Warning: this is a debug build of cabal-install with assertions enabled.
Preprocessing library for Cabal-syntax-3.17.0.0...
when making flags consistent: warning: [GHC-74335] [-Winconsistent-flags]
    Ignoring optimization flags since they are experimental for the byte-code interpreter. Pass -fno-unoptimized-core-for-interpreter to enable this feature.

Examples: 154  Tried: 154  Errors: 0  Failures: 0
cd Cabal-described && cabal doctest
Warning: this is a debug build of cabal-install with assertions enabled.
Warning: this is a debug build of cabal-install with assertions enabled.
doctest version 0.24.3
using version 9.12.2 of the GHC API
using /Users/iliabaryshnikov/.ghcup/ghc/9.12.2/bin/ghc-9.12.2
Warning: this is a debug build of cabal-install with assertions enabled.
Configuration is affected by cabal.project at
'/Users/iliabaryshnikov/haskell/cabal'.
Resolving dependencies...

and after build it

cd Cabal && cabal doctest
Warning: this is a debug build of cabal-install with assertions enabled.
Warning: this is a debug build of cabal-install with assertions enabled.
doctest version 0.24.3
using version 9.12.2 of the GHC API
using /Users/ilya/.ghcup/ghc/9.12.2/bin/ghc-9.12.2
Warning: this is a debug build of cabal-install with assertions enabled.
Configuration is affected by cabal.project at
'/Users/ilya/haskell/cabal'.
Resolving dependencies...
Build profile: -w ghc-9.12.2 -O1
In order, the following will be built (use -v for more details):
 - Cabal-3.17.0.0 (interactive) (lib) (configuration changed)
Warning: this is a debug build of cabal-install with assertions enabled.
Configuring library for Cabal-3.17.0.0...
Warning: this is a debug build of cabal-install with assertions enabled.
Preprocessing library for Cabal-3.17.0.0...
doctest-0.24.3: Uncaught exception ghc-9.12.2-5a96:GHC.Utils.Panic.GhcException:

Can't parse reexported module flag: Language.Haskell.Extension\ as\ Language.Haskell.Extension

While handling Can't parse reexported module flag: Language.Haskell.Extension\ as\ Language.Haskell.Extension

HasCallStack backtrace:
  throwIO, called at src/Run.hs:152:12 in dctst-0.24.3-bcc5c85d:Run

make: *** [doctest] Error 1
ilya@MBP cabal %

zlonast · 2026-03-21T12:22:10Z

Quite interesting, Cabal CI have the same error as in this Alex CI

https://github.com/haskell/alex/actions/runs/23374883446/job/68005150600

zlonast · 2026-03-21T12:23:57Z

I found this in their latest pr haskell/alex#287

zlonast · 2026-03-21T12:36:16Z

Hmmmmm, it not work on ghc 9.6.7 (any) [Cabal CI] and ghc 9.14.1 (mac OS) [Alex CI] 🤔
For any version of cabal-install

Also it not good work on my cabal-install 3.17.0.0 and ghc 9.12.2

Alos it not work on @Bodigrim ghc-9.10.3

Below are the environment variables in Cabal CI

    GHC_VERSION: 9.10.2
    GHC_TARGETS: install_bin install_lib update_package_db install_extra
    GHC_TEST_VERSION: 9.6.7
    GHC_TEST_TARGETS: install_bin install_lib update_package_db
    CABAL_VERSION: 3.14.2.0

Bodigrim · 2026-03-21T12:49:00Z

Looking at haskell/alex@v3.5.4.0...v3.5.4.1, I do not see anything which could caused an issue. So perhaps alex release is a red herring, which just triggered cache expiry, and there is something else amiss.

@andreasabel might you have any clue?

zlonast · 2026-03-21T15:48:40Z

Same problem with alex #11631

philderbeast · 2026-03-21T17:22:08Z

There's something wrong with alex. We could add a constraint to cabal.release.project avoiding that latest breaking version of alex.

geekosaur · 2026-03-21T17:24:40Z

Maybe one of the project-cabal files instead? Does this also affect validate?

ETA: nemmind, just saw the CI matrix. (Just got back from grocery shopping, and am poking while upgrading my FBSD box.)

Bodigrim · 2026-03-21T19:11:24Z

This is discussed upstream at haskell/alex#288.

To unblock Cabal CI, one can indeed fire a PR prohibiting alex-3.5.4.1 in project-cabal/constraints.config. I think it would be appropriate to fast-track it.

geekosaur · 2026-03-21T19:20:24Z

I have to wonder if this is related to #10534 (comment).

mergify · 2026-03-22T00:56:10Z

philderbeast reviewed Mar 18, 2026

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zlonast force-pushed the zlonast/remove-cabalism branch 3 times, most recently from 8f626f7 to 348c203 Compare March 18, 2026 18:54

Fix typo and use a relative URL

fa9ef1b

Rerun tests to get normalised output Co-authored-by: Phil de Joux <philderbeast@gmail.com>

zlonast force-pushed the zlonast/remove-cabalism branch from 348c203 to fa9ef1b Compare March 18, 2026 19:17

zlonast added the merge me Tell Mergify Bot to merge label Mar 19, 2026

mergify bot added ready and waiting Mergify is waiting out the cooldown period merge delay passed Applied (usually by Mergify) when PR approved and received no updates for 2 days queued labels Mar 19, 2026

mergify bot added a commit that referenced this pull request Mar 21, 2026

Merge of #11632

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mergify bot mentioned this pull request Mar 21, 2026

merge queue: embarking master (8730d5b) and #11632 together #11640

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Merge of #11632

a4f569c

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merge queue: embarking master (27a9b61) and #11632 together #11644

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mergify bot merged commit cbc34cd into haskell:master Mar 22, 2026
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zlonast deleted the zlonast/remove-cabalism branch March 22, 2026 18:28

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