Missing ghc 8.6.4 bindisit for "linux64-ncurses6"

[RaphyJake]

Just like in this issue, environment has ncurses 6 installed and stack fails to install ghc 8.6.4.

% stack config set resolver lts
Selected resolver: lts-13.15
/home/raphy/.stack/global-project/stack.yaml already contained the intended configuration and remains unchanged.
% stack setup
No setup information found for ghc-8.6.4 on your platform.
This probably means a GHC bindist has not yet been added for OS key 'linux64-ncurses6'.
Supported versions: ghc-7.10.3, ghc-8.0.1, ghc-8.0.2, ghc-8.2.1, ghc-8.2.2

Using Void Linux, with ncurses 6.1.

[borsboom]

Most Linux distributions have standardized on providing libtinfo.so.6 (either directly or as a symlink to libncursesw.so.6). As such, there aren't GHC 8.6.* bindists that link to libncursesw.so.6 available. If Void Linux doesn't provide a compatibility package, you might try creating a symlink yourself.

[RaphyJake]

Thanks a lot, making the symlink solved it.

[borsboom]

Awesome! If you have time, a pull request against https://github.com/commercialhaskell/stack/blob/master/doc/faq.md adding a note with the steps you took might be helpful to others.

[lokeshmohanty]

@borsboom I have sent a pull request in the faq for this. Let me know if any modifications are required

[waynevanson]

Most Linux distributions have standardized on providing libtinfo.so.6 (either directly or as a symlink to libncursesw.so.6). As such, there aren't GHC 8.6.* bindists that link to libncursesw.so.6 available. If Void Linux doesn't provide a compatibility package, you might try creating a symlink yourself.

If building GHC on your machine on voidlinux, you'll need to install ncurses-libtinfo-devel. This installs all the stuff, including the symlink for libtinfo.so.6. This definitely works for x86_64 but unsure with any other variants or musl.