[Haskell-cafe] ghc 7.10.1-rc1 ghc no longer supports single-file style package databases (dist/package.conf.inplace) use 'ghc-pkg init' to create the database with the correct format.

[Antoine Latter]

I did the following to work around this:

I cloned this branch on GitHub: https://github.com/haskell/cabal/tree/1.22

Then, in the cabal-install folder I built the 'cabal-install' binary
*without* using the existing version of cabal-install, then used the newly
built 'cabal-install' to actually install the new 'cabal-install':

cd <folder which has cabal-install>
ghc Setup.hs
./Setup.hs configure
./Seup.hs build
dist/build/cabal/cabal install

You may need to install some dependencies first - using the old
cabal-install worked fine for me for this, but maybe it secretly corrupted
something behind the scenes. I haven't had trouble so far.

On Fri, Dec 26, 2014 at 2:29 AM, Konstantine Rybnikov <k-bx at k-bx.com> wrote:

> Hi!
>
> I just did `sudo make install` on ghc 7.10.1-rc1, removed ~/.ghc and did
> `cabal update`. I'm now trying to upgrade to latest cabal by issuing `cabal
> install cabal-install`. I get the following:
>
> ```
> ...
> on the commandline: Warning:
>     -package-name is deprecated: Use -this-package-key instead
> ghc: ghc no longer supports single-file style package databases
> (dist/package.conf.inplace) use 'ghc-pkg init' to create the database with
> the correct format.
> Failed to install zlib-0.5.4.2
> cabal: Error: some packages failed to install:
> HTTP-3001.0.4 depends on text-1.2.0.3 which failed to install.
> cabal-install-0.4.0 depends on zlib-0.5.4.2 which failed to install.
> mtl-2.2.1 failed during the building phase. The exception was:
> ExitFailure 1
> network-2.6.0.2 failed during the building phase. The exception was:
> ExitFailure 1
> parsec-3.1.7 depends on text-1.2.0.3 which failed to install.
> text-1.2.0.3 failed during the building phase. The exception was:
> ExitFailure 1
> zlib-0.5.4.2 failed during the building phase. The exception was:
> ExitFailure 1
> ```
>
> Does anyone know a quick-fix?
>
> Thanks!
>
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