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: svgcairo (user goal)
[__0] rejecting: svgcairo-0.13.2.1 (conflict: pkg-config package
librsvg-2.0>=2.16.0, not found in the pkg-config database)
[__0] rejecting: svgcairo-0.13.2.0, svgcairo-0.13.1.1, svgcairo-0.13.1.0,
svgcairo-0.13.0.4, svgcairo-0.13.0.3, svgcairo-0.13.0.2, svgcairo-0.13.0.1,
svgcairo-0.13.0.0, svgcairo-0.12.5.2, svgcairo-0.12.5.1, svgcairo-0.12.5.0,
svgcairo-0.12.1.1, svgcairo-0.12.1, svgcairo-0.12.0, svgcairo-0.11.1,
svgcairo-0.11.0 (constraint from user target requires ==0.13.2.1)
[__0] fail (backjumping, conflict set: svgcairo)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: svgcairo