Hi, We now always use Word64# to implement Word64. You can find the patch for primitive and many other packages in head.hackage: https://gitlab.haskell.org/ghc/head.hackage/-/blob/master/patches/primitive-... Cheers, Sylvain ⁣ Le 26 nov. 2021 à 20:35, à 20:35, Harendra Kumar a écrit:

Forgot to add subject in the previous email.

On Sat, 27 Nov 2021 at 01:01, Harendra Kumar wrote:

...

Hi GHC devs,

While compiling the primitive package using ghc head I ran into the following error:

Data/Primitive/Types.hs:265:870: error: • Couldn't match type ‘Word64#’ with ‘Word#’ Expected: Word64_# Actual: Word64# • In the fourth argument of ‘setWord64Array#’, namely ‘x#’ In the first argument of ‘internal’, namely ‘(setWord64Array# arr# i n x#)’ In the first argument of ‘unsafeCoerce#’, namely ‘(internal (setWord64Array# arr# i n x#))’ | 265 | derivePrim(Word64, W64#, sIZEOF_WORD64, aLIGNMENT_WORD64, |

Any idea what this is and how it can be fixed?

-harendra

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