Merge master into staging-next

This brings thousands of rebuilds.
Hydra nixpkgs: ?compare=1597944

pkgs/misc/emulators/emu2/default.nix

@@ -0,0 +1,23 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "emu2";
+  version = "unstable-2020-06-04";
+
+  src = fetchFromGitHub {
+    owner  = "dmsc";
+    repo   = "emu2";
+    rev    = "f9599d347aab07d9281400ec8b214aabd187fbcd";
+    sha256 = "0d8fb3wp477kfi0p4mmr69lxsbgb4gl9pqmm68g9ixzrfch837v4";
+  };
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  meta = with stdenv.lib; {
+    homepage = "https://github.com/dmsc/emu2/";
+    description = "A simple text-mode x86 + DOS emulator";
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ dramaturg ];
+    license = licenses.gpl2;
+  };
+}

pkgs/misc/emulators/stella/default.nix

@@ -4,13 +4,13 @@ with stdenv.lib;
 stdenv.mkDerivation rec {
 
   pname = "stella";
-  version = "6.2";
+  version = "6.2.1";
 
   src = fetchFromGitHub {
     owner = "stella-emu";
     repo = "stella";
     rev = version;
-    sha256 = "1d97g4m686xsj6r5vy5x74ys9yk0hcpdppxh714n8hhcc9aglm19";
+    sha256 = "1yhszswwg217x8d2qlcasi9l97y1z6w1pgliys4p27zv5b1ygy7p";
   };
 
   nativeBuildInputs = [ pkgconfig ];