digital-asset/ghc-lib

Need a GHC 9.2.1 release

Closed this issue · 6 comments

LeventErkok commented

Trying to build with GHC 9.2.1 (with --allow-newer to overcome base == 4.16 requirement) unsurprisingly fails with:

libraries/ghc-heap/GHC/Exts/Heap.hs:71:32: error:
    Not in scope: data constructor ‘LiftedRep’
   |
71 | instance HasHeapRep (a :: TYPE 'LiftedRep) where
   |                                ^^^^^^^^^^

libraries/ghc-heap/GHC/Exts/Heap.hs:74:32: error:
    Not in scope: data constructor ‘UnliftedRep’
    Perhaps you meant ‘Unlifted’ (imported from GHC.Exts)
   |
74 | instance HasHeapRep (a :: TYPE 'UnliftedRep) where
   |                                ^^^^^^^^^^^^

Admittedly this breakage is totally expected. Would be nice to have a 9.2.1 release.

amesgen commented

ghc-lib-parser-9.2.1.20211030 just got uploaded to Hackage, but it does not compile on GHC 9.2.1 due to unnecessarily restrictive bounds on ghc-prim and bytestring. AFAICT, all restrictive upper bounds can be relaxed (using --allow-newer='ghc-lib-parser:*' works fine locally):

bytestring >=0.9 && <0.11 (latest: 0.11.1.0)
ghc-prim >0.2 && <0.8 (latest: 0.8.0)
time >=1.4 && <1.10 (latest: 1.13)
transformers >=0.5 && <0.6 (latest: 0.6.0.2)
LeventErkok commented

Thanks for the quick update! I'll leave this ticket open so you can close when you deem appropriate.

shayne-fletcher commented

i've adjusted the bounds on hackage. do you mind giving this another go after a cabal update please? i think it should be ok without --allow-newer='ghc-lib-parser:*' now. thanks for the heads up.

amesgen commented

Yes, compiling with GHC 9.2 now works fine without any special flags, thanks for the quick revision! This ticket can be closed then I think.

LeventErkok commented

Great. I'll close it then. Thanks for the very speedy patch.

LeventErkok commented

@shayne-fletcher Looks like ghc-lib-parser-ex has issues too. Filed: shayne-fletcher/ghc-lib-parser-ex#99