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Description
I got the following error while trying to build the language-python package:
dist/build/Language/Python/Version3/Parser/Parser.hs:7562:4: error: [GHC-83865]
• Couldn't match type ‘Happy_GHC_Exts.Int32#’
with ‘Happy_GHC_Exts.Int#’
Expected: Happy_Int
Actual: Happy_GHC_Exts.Int32#
• In the expression: Happy_GHC_Exts.indexInt32OffAddr# arr off
In an equation for ‘happyIndexOffAddr’:
happyIndexOffAddr (HappyA# arr) off
= (Happy_GHC_Exts.indexInt32OffAddr# arr off)
|
7562 | (Happy_GHC_Exts.indexInt32OffAddr# arr off)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: cabal: Failed to build language-python-0.5.8 (which is required by
test-project-0.0.0). See the build log above for details.
which has started to happen as of today right after the release of a new version of the happy parser generator. I am not sure if this is an intented breaking change from the developers of happy or that this is a bug. Nonetheless, I suggest to limit the version of happy <2 so that the new version is not used when building language-python.
Build environment
- ghc:
9.6.6 - cabal:
3.10.3.0 - hackage index state:
2024-09-20T11:02:23Z
Steps to reproduce
cabal.project:
with-compiler: ghc-9.6.6
index-state: 2024-09-20T11:02:23Z
packages:
.
testproject.cabal:
cabal-version: 1.12
name: test-project
version: 0.0.0
build-type: Simple
library
hs-source-dirs:
src
build-depends:
base >=4.17 && <5
, language-python
Run: cabal build to observe the error.
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