Hi,

It seems as if you have also another version of GHC installed on your computer in another directory (usr/bin/ghc), and its version is 7.10.3, and it is considered the global version.

You could try to use a virtual environment for installing the version 8.4.3

http://hackage.haskell.org/package/hsenv

(I've never tried so I am not sure it works)

Regards

Il lun 4 giu 2018, 09:08 Andreas Röhler <andreas.roehler@easy-emacs.de> ha scritto:

While installing ghc-8.4.3-i386-deb8-linux.tar.xz at Debian8 went
smoothly, can't se how to install ghc-8.4.3 at Ubuntu resp. Xubuntu:

in dir ghc-8.4.3/

./configure
checking for gfind... no
checking for find... /usr/bin/find
checking for sort... /usr/bin/sort
checking for GHC Git commit id... given
51abb1c88b53e2989a2a8c2939ac4abc04bef194
checking for ghc... /usr/bin/ghc
checking version of ghc... 7.10.3
configure: error: GHC version 8.0 or later is required to compile GHC.

Did cabal update

and tried haskell-platform for ubuntu
https://www.haskell.org/platform/linux.html#linux-ubuntu

which seems broken

Tried Haskell-platform from source:

./platform.sh
***
*** Building hptool
***
cabal: unrecognised command: new-build (try --help)

Any help?

Cheers,
Andreas

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