Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: saltine (user goal)
rejecting: saltine-0.1.0.0 (conflict: requires pkg-config package
libsodium>=1.0.13, not found in the pkg-config database)
rejecting: 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 ==0.1.0.0)
Dependency tree exhaustively searched.