@@ -16296,3 +16296,29 @@ (define-public ghc-record-dot-preprocessor
"Preprocessor to allow the @code{record.field} syntax to access the
fields of records in Haskell.")
(license license:bsd-3)))
+
+(define-public ghc-monoid-subclasses
+ (package
+ (name "ghc-monoid-subclasses")
+ (version "1.1.3")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (hackage-uri "monoid-subclasses" version))
+ (sha256
+ (base32 "1nglki10rlpi872p55pa8g809q5sna7yzh3zw4rqfhq89kb15wcv"))))
+ (build-system haskell-build-system)
+ (outputs '("out" "static"))
+ (inputs (list ghc-primes ghc-vector))
+ (native-inputs
+ (list ghc-quickcheck
+ ghc-quickcheck-instances
+ ghc-tasty
+ ghc-tasty-quickcheck))
+ (home-page "https://github.com/blamario/monoid-subclasses/")
+ (synopsis "Subclasses of Monoid")
+ (description
+ "This package provides a hierarchy of subclasses of @code{Monoid}
+together with their instances for all data structures from base, containers,
+and text packages.")
+ (license license:bsd-3)))