Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: gi-gstaudio (user goal)
[__0] rejecting: gi-gstaudio-1.0.19 (conflict: pkg-config package
gstreamer-audio-1.0-any, not found in the pkg-config database)
[__0] rejecting: gi-gstaudio-1.0.18, gi-gstaudio-1.0.17, gi-gstaudio-1.0.15,
gi-gstaudio-1.0.14, gi-gstaudio-1.0.13, gi-gstaudio-1.0.12,
gi-gstaudio-1.0.11, gi-gstaudio-1.0.10, gi-gstaudio-1.0.9, gi-gstaudio-1.0.8,
gi-gstaudio-1.0.7, gi-gstaudio-1.0.6, gi-gstaudio-1.0.5, gi-gstaudio-1.0.4,
gi-gstaudio-1.0.3, gi-gstaudio-1.0.2, gi-gstaudio-1.0.1, gi-gstaudio-0.1.6.13
(constraint from user target requires ==1.0.19)
[__0] fail (backjumping, conflict set: gi-gstaudio)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-gstaudio