haskell: ghc-8 can't find libncursesw.so.6

[Myles English]

Hello,

Am I doing something wrong?

$ guix package -i ghc-8
[installs fine]

$ ghc --version
/gnu/store/50gn6ahfc0llldy6ggrnj1hc5wsxyfh9-ghc-8.0.1/lib/ghc-8.0.1/bin/ghc:
error while loading shared libraries: libncursesw.so.6: cannot open
shared object file: No such file or directory

The ncurses libraries are available:

$ ls /gnu/store/**/libncursesw*
/gnu/store/hdrli1v7q3107w842s7di8rid82xlfvl-ncurses-6.0/lib/libncursesw.a
/gnu/store/hdrli1v7q3107w842s7di8rid82xlfvl-ncurses-6.0/lib/libncursesw.so
/gnu/store/hdrli1v7q3107w842s7di8rid82xlfvl-ncurses-6.0/lib/libncursesw.so.6
/gnu/store/hdrli1v7q3107w842s7di8rid82xlfvl-ncurses-6.0/lib/libncursesw.so.6.0
/gnu/store/xydfiifs9slq0wv6n8j6p26icn2ihn88-ncurses-6.0/lib/libncursesw.a
/gnu/store/xydfiifs9slq0wv6n8j6p26icn2ihn88-ncurses-6.0/lib/libncursesw.so
/gnu/store/xydfiifs9slq0wv6n8j6p26icn2ihn88-ncurses-6.0/lib/libncursesw.so.6
/gnu/store/xydfiifs9slq0wv6n8j6p26icn2ihn88-ncurses-6.0/lib/libncursesw.so.6.0
/gnu/store/yi8a0206zpqf6qijkn70938jj8l6s87b-ncurses-6.0/lib/libncursesw.a
/gnu/store/yi8a0206zpqf6qijkn70938jj8l6s87b-ncurses-6.0/lib/libncursesw.so
/gnu/store/yi8a0206zpqf6qijkn70938jj8l6s87b-ncurses-6.0/lib/libncursesw.so.6
/gnu/store/yi8a0206zpqf6qijkn70938jj8l6s87b-ncurses-6.0/lib/libncursesw.so.6.0

Thanks,
Myles