Revert "Merge branch 'staging-next'"

This reverts commit 41af38f372, reversing
changes made to f0fec244ca.

Let's delay this.  We have some serious regressions.

pkgs/development/libraries/libgdiplus/default.nix

@@ -2,19 +2,33 @@
 , libtiff, giflib, libjpeg, libpng
 , libXrender, libexif, autoreconfHook, fetchpatch }:
 
-stdenv.mkDerivation rec {
-  pname = "libgdiplus";
-  version = "6.0.2";
+stdenv.mkDerivation {
+  name = "libgdiplus-5.6.1";
 
   src = fetchFromGitHub {
     owner = "mono";
     repo = "libgdiplus";
-    rev = version;
-    sha256 = "07a3n7i35mn5j2djah64by785b1hzy8ckk1pz0xwvk716yzb7sxg";
+    rev = "5.6.1";
+    sha256 = "023xf3l2s0mxcdbl2viglzrkhx3lwcrpm66fiq7cfdqz80d4vsj2";
   };
 
   NIX_LDFLAGS = "-lgif";
 
+  patches = [ # Series of patches cherry-picked from master, all fixes various sigsegv (or required by other patch)
+    (fetchpatch {
+          url = "https://github.com/mono/libgdiplus/commit/d33a2580a94701ff33abe28c22881d6173be57d0.patch";
+          sha256 = "0rr54jylscn4icqjprqhwrncyr92r0d7kmfrrq3myskplpqv1c11";
+    })
+    (fetchpatch {
+          url ="https://github.com/mono/libgdiplus/commit/aa6aa53906935572f52f519fe4ab9ebedc051d08.patch";
+          sha256 = "1wg0avm8qv5cb4vk80baflfzszm6q7ydhn89c3h6kq68hg6zsf1f";
+    })
+    (fetchpatch {
+          url = "https://github.com/mono/libgdiplus/commit/81e45a1d5a3ac3cf035bcc3fabb2859818b6cc04.patch";
+          sha256 = "07wmc88cd1lqifs5x6npryni65jyy9gi8lgr2i1lb7v0fhvlyswg";
+    })
+  ];
+
   hardeningDisable = [ "format" ];
 
   nativeBuildInputs = [ autoreconfHook pkgconfig ];