Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: bindings-nettle (user goal)
rejecting: bindings-nettle-0.4 (constraint from user target requires ==0.3.1)
rejecting: bindings-nettle-0.3.1 (conflict: requires pkg-config package
nettle-any, not found in the pkg-config database)
rejecting: bindings-nettle-0.3, bindings-nettle-0.2, bindings-nettle-0.1.1,
bindings-nettle-0.1, bindings-nettle-0.0 (constraint from user target requires
==0.3.1)
Dependency tree exhaustively searched.