Ben and other friends What is the approved way to build libraries with (and for) a compiler that I've just built? I tried this: bash$ cabal v2-install --with-ghc=/home/simonpj/code/ghc-9.2-branch/inplace/bin/ghc-stage2 streamly --allow-newer but it failed with Data/Primitive/Types.hs:273:844: error: * Couldn't match expected type 'Word#' with actual type 'Word8#' * In the fourth argument of 'shimmedSetWord8Array#', namely 'x#' (This was for a compiler built from the ghc-9.2 branch.) I'd like to be able to do the same for HEAD. I need to do this to help with the numerous tickets asking about library regressions. For example, I want to be able repoduce @harendra's examplehttps://gitlab.haskell.org/ghc/ghc/-/issues/19557#note_348969, but I can't because I can't build streamly. Thanks! Simon