Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: saltine (user goal)
[__0] rejecting: saltine-0.1.0.1 (conflict: pkg-config package
libsodium>=1.0.13, not found in the pkg-config database)
[__0] rejecting: saltine-0.1.0.0, saltine-0.0.1.0, saltine-0.0.0.6,
saltine-0.0.0.5, saltine-0.0.0.4, saltine-0.0.0.3, saltine-0.0.0.2,
saltine-0.0.0.1 (constraint from user target requires ==0.1.0.1)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: saltine