Workaround for 'cabal/4728' seems to be disabled in 'stack-1.7.0' (while it shouldn't)

[chshersh]

I'm trying to build cardano-sl locally from scratch using GHC-8.2.2 and LTS-10.3 and stack-1.7.0. My work is in this PR:

• [CSL-2125] Migrating to GHC-8.2.2 and LTS-10.* input-output-hk/cardano-sl#2327

I've ensured that I don't have any stack cache problems. So I did:

rm -rf ~/.stack
rm -rf .stack-wok

Unfortunately, I see this error:

$ stack build --ghc-options=" -Wwarn" --test --no-haddock-deps --bench --jobs=4 --no-run-tests --no-run-benchmarks --fast  cardano-sl-crypto

cardano-sl-crypto-1.0.3: build (lib)
Preprocessing library for cardano-sl-crypto-1.0.3..
Building library for cardano-sl-crypto-1.0.3..
<command line>: cannot satisfy -package-id cardano-sl-util-1.0.3-G5HFXANN25G9a0KpoRTcat: 
    cardano-sl-util-1.0.3-G5HFXANN25G9a0KpoRTcat is unusable due to shadowed dependencies:
      cardano-sl-networking-1.0.3-6tqSgFZHWWmH386RlBU8vY
    (use -v for more information)

Here is full build log:

• http://lpaste.net/8431203862144090112

AFAIU, it's related to some bug in ghc-pkg:

• Shadowed dependencies during builds with Cabal 2.0 WAS: cabal 2.0 and alex on macos haskell/cabal#4728

Though, as I understand, stack has some workaround for this.

• Force reconfigure when deps are rebuilt #2781 #3503

And this workaround should be removed in future:

• Disable "shadowed dependencies" workaround when GHC is new enough #3554

Though, it seems that this workaround disappeared in stack-1.7.0 while it shouldn't.

Stack version:

$ stack --version
Version 1.7.0, Git revision cfdd8d7e397a890591ec4ee76f3ee78fbe537c89 x86_64 hpack-0.20.0

OS:

$ sudo lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.3 LTS
Release:	16.04
Codename:	xenial

[snoyberg]

I was unable to reproduce this issue on my machine. Can you check if stack clean --full has any impact?

[domenkozar]

@chshersh could you try stack 1.6.3 to confirm this is not an issue there?

[chshersh]

@domenkozar I've tried to build with stack-1.6.3 (which I have currently) and, unfortunately, project doesn't build as well 😞

[chshersh]

stack clean --full resolves the issue. Thanks! I tried with both stack-1.6.3 and stack-1.7.0. Everything works fine now, it was my mistake.