On 12/13/21 08:56, Ben Cotton wrote:
https://fedoraproject.org/wiki/Changes/GHC_parallel_version_installs == Summary == Introduce ghcX.Y packages to Fedora which can be parallel installed, in addition to the main ghc package. == Owner == * Name: [[User:Petersen|Jens Petersen]] * Email: petersen@xxxxxxxxxx == Detailed Description == Currently ghc modules are available in Fedora but they cannot be installed in parallel.
What is the plan for the ghc modules? -Tom
This Change will enable being able to easily install multiple versions of ghc in parallel, which can be useful for development - both for working on different projects and testing projects for compatibility across different ghc versions. == Feedback == This was proposed to the Fedora Haskell mailing list already and so far there were no objections. == Benefit to Fedora == Parallel installs of ghc versions will allow more flexible Haskell development using Fedora Linux. == Scope == * Proposal owners: ** update ghc-rpm-macros to support the packaging [done] ** add ghc9.2 [built for rawhide] ** add ghc9.0 [repo created] ** add ghc8.10 [may not be needed for F36] ** add ghc8.8 [stretch goal] ** add cabal-install3.4 and/or cabal-install3.6 [stretch goal] ** also backport ghcX.Y's to F35, F34, and EPEL * Other developers: N/A * Release engineering: N/A * Policies and guidelines: N/A (not needed for this Change) * Trademark approval: N/A (not needed for this Change) * Alignment with Objectives: N/A == Upgrade/compatibility impact == These are new packages so upgrading from older releases should be fine. Eventually future Fedora version upgrades will probably need to obsolete very old ghcX.Y versions. == How To Test == 1. dnf install ghc ghc9.2 ghc9.0 == User Experience == Installing ghc, ghc9.0, and ghc9.2 will give you /usr/bin/ghc, /usr/bin/ghc-9.0.x and /usr/bin/ghc-9.2.x. Their Haskell libraries will have ghc versioned directories and .so files. == Dependencies == N/A == Contingency Plan == * Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change) * Contingency deadline: N/A (not a System Wide Change) * Blocks release? N/A (not a System Wide Change) == Documentation == N/A (not a System Wide Change) == Release Notes == With the introduction of versioned ghcX.Y packages multiple versions of the Haskell GHC compiler can now be installed parallel in the Fedora Linux.
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