Cabal clean up.

unpacked-maybe-numeric.cabal

@@ -1,7 +1,7 @@
-cabal-version:      2.2
-name:               unpacked-maybe-numeric
-version:            0.1.3.1
-synopsis:           maybes of numeric values with fewer indirections
+cabal-version:   2.2
+name:            unpacked-maybe-numeric
+version:         0.1.3.1
+synopsis:        maybes of numeric values with fewer indirections
 description:
   This library provides one `Maybe` type per the usual numeric types:
   Float, Double, Complex {Float|Double}, Int{8|16|32|64}, and Word{8|16|32|64|128}
@@ -12,18 +12,25 @@ description:
   to the `Nothing` value. Thus, the use of these constructors is unsafe, as this is only
   checked internally.
 
-homepage:           https://github.com/byteverse/unpacked-maybe-numeric
-bug-reports:        https://github.com/byteverse/unpacked-maybe-numeric/issues
-author:             Andrew Martin, chessai
-maintainer:         [email protected], [email protected]
-category:           Data
-copyright:          2018 Andrew Martin
-license:            BSD-3-Clause
-license-file:       LICENSE
-build-type:         Simple
-extra-source-files: README.md
+homepage:        https://github.com/byteverse/unpacked-maybe-numeric
+bug-reports:     https://github.com/byteverse/unpacked-maybe-numeric/issues
+author:          Andrew Martin, chessai
+maintainer:      [email protected], [email protected]
+category:        Data
+copyright:       2018 Andrew Martin
+license:         BSD-3-Clause
+license-file:    LICENSE
+build-type:      Simple
+extra-doc-files:
+  CHANGELOG.md
+  README.md
+
+common build-settings
+  default-language: Haskell2010
+  ghc-options:      -Wall -Wunused-packages
 
 library
+  import:          build-settings
   exposed-modules:
     Data.Maybe.Unpacked.Numeric.Complex.Double
     Data.Maybe.Unpacked.Numeric.Complex.Float
@@ -41,32 +48,28 @@ library
     Data.Maybe.Unpacked.Numeric.Word64
     Data.Maybe.Unpacked.Numeric.Word8
 
-  hs-source-dirs:   src
+  hs-source-dirs:  src
   build-depends:
     , base         >=4.17.1.0 && <5
-    , primitive    >=0.6.4
     , wide-word    >=0.1.0.8  && <0.2
     , word-compat  >=0.0.4    && <0.1
 
-  ghc-options:      -Wall -O2
-  default-language: Haskell2010
+  ghc-options:     -O2
 
 test-suite spec
-  default-language: Haskell2010
-  ghc-options:      -Wall
-  type:             exitcode-stdio-1.0
-  main-is:          spec.hs
-  hs-source-dirs:   test
+  import:         build-settings
+  type:           exitcode-stdio-1.0
+  main-is:        spec.hs
+  hs-source-dirs: test
   build-depends:
     , base
     , unpacked-maybe-numeric
 
 test-suite laws
-  default-language: Haskell2010
-  ghc-options:      -Wall
-  type:             exitcode-stdio-1.0
-  main-is:          laws.hs
-  hs-source-dirs:   test
+  import:         build-settings
+  type:           exitcode-stdio-1.0
+  main-is:        laws.hs
+  hs-source-dirs: test
   build-depends:
     , base
     , QuickCheck