inkscape: add man output

pkgs/applications/graphics/inkscape/default.nix

@@ -75,6 +75,10 @@ in
 stdenv.mkDerivation (finalAttrs: {
   pname = "inkscape";
   version = "1.4.2";
+  outputs = [
+    "out"
+    "man"
+  ];
 
   src = fetchurl {
     url = "https://inkscape.org/release/inkscape-${finalAttrs.version}/source/archive/xz/dl/inkscape-${finalAttrs.version}.tar.xz";

pkgs/applications/graphics/inkscape/with-extensions.nix

@@ -17,6 +17,11 @@ in
 symlinkJoin {
   name = "inkscape-with-extensions-${lib.getVersion inkscape}";
 
+  outputs = [
+    "out"
+    "man"
+  ];
+
   paths = [ inkscape ] ++ selectedExtensions;
 
   nativeBuildInputs = [ makeWrapper ];
@@ -24,6 +29,8 @@ symlinkJoin {
   postBuild = ''
     rm -f $out/bin/inkscape
     makeWrapper "${inkscape}/bin/inkscape" "$out/bin/inkscape" --set INKSCAPE_DATADIR "$out/share"
+
+    ln -s ${inkscape.man} $man
   '';
 
   inherit (inkscape) meta;