semigroups: init at 0.20

manifest.dhall

@@ -390,6 +390,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "sdl2-mixer" "1.2.0.0"
     , callHackage "sdl2-ttf" "2.1.3"
     , callHackage "semialign" "1.2.0.1"
+    , callHackage "semigroups" "0.20"
     , callHackage "serialise" "0.2.6.0"
     , callCabal2nix
         "servant"

overlay.nix

@@ -487,6 +487,8 @@ final: prev: with pkgs.haskell.lib; {
 
   semialign = prev.callPackage (./pkgs/semialign.nix) { };
 
+  semigroups = prev.callPackage (./pkgs/semigroups.nix) { };
+
   serialise = prev.callPackage (./pkgs/serialise.nix) { };
 
   servant = prev.callPackage (./pkgs/servant.nix) { };

pkgs/semigroups.nix

+{ mkDerivation, base, lib }:
+mkDerivation {
+  pname = "semigroups";
+  version = "0.20";
+  sha256 = "902d2e33c96b40a89de5957f2a9e097197afcc35e257e45b32ebe770993673e1";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [ base ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "http://github.com/ekmett/semigroups/";
+  description = "Anything that associates";
+  license = lib.licenses.bsd3;
+  broken = false;
+}