diff --git a/pkgs/development/libraries/rocksdb/default.nix b/pkgs/development/libraries/rocksdb/default.nix
index 2bb56bec8c0..ac70d6ec0f2 100644
--- a/pkgs/development/libraries/rocksdb/default.nix
+++ b/pkgs/development/libraries/rocksdb/default.nix
@@ -1,4 +1,8 @@
-{ stdenv, fetchFromGitHub, lib, bzip2, cmake, lz4, snappy, zlib, zstd, enableLite ? false }:
+{ stdenv, fetchFromGitHub, fetchpatch
+, cmake, ninja
+, bzip2, lz4, snappy, zlib, zstd
+, enableLite ? false
+}:
 
 stdenv.mkDerivation rec {
   pname = "rocksdb";
@@ -11,9 +15,17 @@ stdenv.mkDerivation rec {
     sha256 = "0s0n4p1b4jzmslz9d2xd4ajra0m6l9x26mjwlbgw0klxjggmy8qn";
   };
 
-  nativeBuildInputs = [ cmake ];
+  nativeBuildInputs = [ cmake ninja ];
   buildInputs = [ bzip2 lz4 snappy zlib zstd ];
 
+  patches = [
+    # https://github.com/facebook/rocksdb/pull/6076
+    (fetchpatch {
+      url = "https://github.com/facebook/rocksdb/commit/c0be4b2ff1a5393419673fab961cb9b09ba38752.diff";
+      sha256 = "1f2wg9kqlmf2hiiihmbp8m5fr2wnn7896g6i9yg9hdgi40pw30w6";
+    })
+  ];
+
   postPatch = ''
     substituteInPlace CMakeLists.txt --replace "find_package(zlib " "find_package(ZLIB "
   '';
@@ -31,13 +43,17 @@ stdenv.mkDerivation rec {
     "-DWITH_ZSTD=1"
     "-DWITH_GFLAGS=0"
     "-DUSE_RTTI=1"
-    (lib.optional
-        (stdenv.hostPlatform.system == "i686-linux"
-         || stdenv.hostPlatform.system == "x86_64-linux")
+    "-DROCKSDB_INSTALL_ON_WINDOWS=YES" # harmless elsewhere
+    (stdenv.lib.optional
+        (stdenv.hostPlatform.isx86 && stdenv.hostPlatform.isLinux)
         "-DFORCE_SSE42=1")
-    (lib.optional enableLite "-DROCKSDB_LITE=1")
+    (stdenv.lib.optional enableLite "-DROCKSDB_LITE=1")
+    "-DFAIL_ON_WARNINGS=${if stdenv.hostPlatform.isMinGW then "NO" else "YES"}"
   ];
 
+  # otherwise "cc1: error: -Wformat-security ignored without -Wformat [-Werror=format-security]"
+  hardeningDisable = stdenv.lib.optional stdenv.hostPlatform.isWindows "format";
+
   meta = with stdenv.lib; {
     homepage = https://rocksdb.org;
     description = "A library that provides an embeddable, persistent key-value store for fast storage";
diff --git a/pkgs/development/libraries/snappy/default.nix b/pkgs/development/libraries/snappy/default.nix
index 80c3630af29..f35f5bfc55a 100644
--- a/pkgs/development/libraries/snappy/default.nix
+++ b/pkgs/development/libraries/snappy/default.nix
@@ -32,6 +32,6 @@ stdenv.mkDerivation rec {
     homepage = https://google.github.io/snappy/;
     license = licenses.bsd3;
     description = "Compression/decompression library for very high speeds";
-    platforms = platforms.unix;
+    platforms = platforms.all;
   };
 }
diff --git a/pkgs/tools/compression/lz4/default.nix b/pkgs/tools/compression/lz4/default.nix
index 3f2497cd8d2..3ce0eac3fc5 100644
--- a/pkgs/tools/compression/lz4/default.nix
+++ b/pkgs/tools/compression/lz4/default.nix
@@ -21,6 +21,7 @@ stdenv.mkDerivation rec {
     })
   ];
 
+  # TODO(@Ericson2314): Separate binaries and libraries
   outputs = [ "out" "dev" ];
 
   buildInputs = stdenv.lib.optional doCheck valgrind;
@@ -33,17 +34,27 @@ stdenv.mkDerivation rec {
     # TODO do this instead
     #"BUILD_STATIC=${if enableStatic then "yes" else "no"}"
     #"BUILD_SHARED=${if enableShared then "yes" else "no"}"
+    #"WINDRES:=${stdenv.cc.bintools.targetPrefix}windres"
   ]
     # TODO delete and do above
     ++ stdenv.lib.optional (enableStatic) "BUILD_STATIC=yes"
     ++ stdenv.lib.optional (!enableShared) "BUILD_SHARED=no"
+    ++ stdenv.lib.optional stdenv.hostPlatform.isMinGW "WINDRES:=${stdenv.cc.bintools.targetPrefix}windres"
+    # TODO make full dictionary
+    ++ stdenv.lib.optional stdenv.hostPlatform.isMinGW "TARGET_OS=MINGW"
     ;
 
   doCheck = false; # tests take a very long time
   checkTarget = "test";
 
-  # TODO remove
-  postInstall = stdenv.lib.optionalString (!enableStatic) "rm $out/lib/*.a";
+  # TODO(@Ericson2314): Make resusable setup hook for this issue on Windows.
+  postInstall =
+    stdenv.lib.optionalString stdenv.hostPlatform.isWindows ''
+      mv $out/bin/*.dll $out/lib
+      ln -s $out/lib/*.dll
+    ''
+    # TODO remove
+    + stdenv.lib.optionalString (!enableStatic) "rm $out/lib/*.a";
 
   meta = with stdenv.lib; {
     description = "Extremely fast compression algorithm";
@@ -56,6 +67,6 @@ stdenv.mkDerivation rec {
     '';
     homepage = https://lz4.github.io/lz4/;
     license = with licenses; [ bsd2 gpl2Plus ];
-    platforms = platforms.unix;
+    platforms = platforms.all;
   };
 }
diff --git a/pkgs/tools/compression/zstd/default.nix b/pkgs/tools/compression/zstd/default.nix
index 01e8525fe8f..a3aecf88c90 100644
--- a/pkgs/tools/compression/zstd/default.nix
+++ b/pkgs/tools/compression/zstd/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, gnugrep
+{ stdenv, fetchFromGitHub, fetchpatch, gnugrep
 , fixDarwinDylibNames
 , file
 , legacySupport ? false }:
@@ -14,11 +14,33 @@ stdenv.mkDerivation rec {
     owner = "facebook";
   };
 
-  buildInputs = stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames;
+  patches = [
+    # All 3 from https://github.com/facebook/zstd/pull/1883
+    (fetchpatch {
+      url = "https://github.com/facebook/zstd/commit/106278e7e5fafaea3b7deb4147bdc8071562d2f0.diff";
+      sha256 = "13z7id1qbc05cv1rmak7c8xrchp7jh1i623bq5pwcihg57wzcyr8";
+    })
+    (fetchpatch {
+      url = "https://github.com/facebook/zstd/commit/0ede342acc2c26f87ae962fa88e158904d4198c4.diff";
+      sha256 = "12l5xbvnzkvr76mvl1ls767paqfwbd9q1pzq44ckacfpz4f6iaap";
+      excludes = [
+        # I think line endings are causing problems, or something like that
+        "programs/windres/generate_res.bat"
+      ];
+    })
+    (fetchpatch {
+      url = "https://github.com/facebook/zstd/commit/10552eaffef84c011f67af0e04f0780b50a5ab26.diff";
+      sha256 = "1s27ravar3rn7q8abybp9733jhpsfcaci51k04da94ahahvxwiqw";
+    })
+  ] # This I didn't upstream because if you use posix threads with MinGW it will
+    # work find, and I'm not sure how to write the condition.
+    ++ stdenv.lib.optional stdenv.hostPlatform.isWindows ./mcfgthreads-no-pthread.patch;
+
+  nativeBuildInputs = stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames;
 
   makeFlags = [
     "ZSTD_LEGACY_SUPPORT=${if legacySupport then "1" else "0"}"
-  ];
+  ] ++ stdenv.lib.optional stdenv.hostPlatform.isWindows "OS=Windows";
 
   checkInputs = [ file ];
   doCheck = true;
@@ -56,7 +78,7 @@ stdenv.mkDerivation rec {
     homepage = https://facebook.github.io/zstd/;
     license = with licenses; [ bsd3 ]; # Or, at your opinion, GPL-2.0-only.
 
-    platforms = platforms.unix;
+    platforms = platforms.all;
     maintainers = with maintainers; [ orivej ];
   };
 }
diff --git a/pkgs/tools/compression/zstd/mcfgthreads-no-pthread.patch b/pkgs/tools/compression/zstd/mcfgthreads-no-pthread.patch
new file mode 100644
index 00000000000..69921c0c7ba
--- /dev/null
+++ b/pkgs/tools/compression/zstd/mcfgthreads-no-pthread.patch
@@ -0,0 +1,13 @@
+diff --git a/programs/Makefile b/programs/Makefile
+index 7882fe8c..1e8237bb 100644
+--- a/programs/Makefile
++++ b/programs/Makefile
+@@ -107,7 +107,7 @@ HAVE_THREAD := $(shell [ "$(HAVE_PTHREAD)" -eq "1" -o -n "$(filter Windows%,$(OS
+ ifeq ($(HAVE_THREAD), 1)
+ THREAD_MSG := ==> building with threading support
+ THREAD_CPP := -DZSTD_MULTITHREAD
+-THREAD_LD := -pthread
++THREAD_LD :=
+ else
+ THREAD_MSG := $(NO_THREAD_MSG)
+ endif