Building libraries with an in-place GHC

[Simon Peyton Jones]

Devs
I want to reproduce #18018, but that needs me to build pandoc with my freshly-built HEAD.  I tried this (below) but as you can see that didn't work.  What should I do?
Thanks
Simon


bash$ cabal install --with-compiler=/home/simonpj/code/HEAD-3/inplace/bin/ghc-stage2 --package-db=/home/simonpj/code/HEAD-3/inplace/lib/package.conf.d pandoc-2.9.2.1

Resolving dependencies...

cabal: Could not resolve dependencies:

[__0] trying: pandoc-2.9.2.1 (user goal)

[__1] trying: zlib-0.6.2.1 (dependency of pandoc)

[__2] trying: base-4.14.0.0/installed-4.14.0.0 (dependency of zlib)

[__3] next goal: haddock-library (dependency of pandoc)

[__3] rejecting: haddock-library-1.8.0 (conflict:

base==4.14.0.0/installed-4.14.0.0, haddock-library => base>=4.7 && <4.14)

[__3] skipping: haddock-library-1.7.0, haddock-library-1.6.0,

haddock-library-1.5.0.1, haddock-library-1.4.5, haddock-library-1.4.4,

haddock-library-1.4.3, haddock-library-1.4.2, haddock-library-1.4.1,

haddock-library-1.2.1, haddock-library-1.2.0, haddock-library-1.1.1,

haddock-library-1.1.0, haddock-library-1.0.1, haddock-library-1.0.0,

haddock-library-1.6.1 (has the same characteristics that caused the previous

version to fail: excludes 'base' version 4.14.0.0)

[__3] fail (backjumping, conflict set: base, haddock-library, pandoc)

After searching the rest of the dependency tree exhaustively, these were the

goals I've had most trouble fulfilling: pandoc, base, haddock-library, zlib

Try running with --minimize-conflict-set to improve the error message.



bash$ cabal --version

cabal-install version 3.2.0.0

compiled using version 3.2.0.0 of the Cabal library
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/ghc-devs/attachments/20200406/b68ef806/attachment.html>