diff --git a/cache/clock_cache.cc b/cache/clock_cache.cc
index 9476dba7a8dae5d4857890999526c470344c0e23..9582910bacb29affd34eed450f310520d951795c 100644
--- a/cache/clock_cache.cc
+++ b/cache/clock_cache.cc
@@ -9,7 +9,6 @@
 
 #include "cache/clock_cache.h"
 
-#include <cassert>
 #include <functional>
 #include <numeric>
 
@@ -18,6 +17,7 @@
 #include "monitoring/perf_context_imp.h"
 #include "monitoring/statistics.h"
 #include "port/lang.h"
+#include "rocksdb/env.h"
 #include "util/hash.h"
 #include "util/math.h"
 #include "util/random.h"
diff --git a/include/rocksdb/env.h b/include/rocksdb/env.h
index 1b6273d775847ff002f813e86da7cf6fa4b581c7..62af602c62949d2c40dbccac237e8b9ffc199862 100644
--- a/include/rocksdb/env.h
+++ b/include/rocksdb/env.h
@@ -27,6 +27,7 @@
 
 #include "rocksdb/customizable.h"
 #include "rocksdb/functor_wrapper.h"
+#include "rocksdb/port_defs.h"
 #include "rocksdb/status.h"
 #include "rocksdb/thread_status.h"
 
@@ -69,13 +70,6 @@ struct ConfigOptions;
 
 const size_t kDefaultPageSize = 4 * 1024;
 
-enum class CpuPriority {
-  kIdle = 0,
-  kLow = 1,
-  kNormal = 2,
-  kHigh = 3,
-};
-
 // Options while opening a file to read/write
 struct EnvOptions {
   // Construct with default Options
diff --git a/include/rocksdb/port_defs.h b/include/rocksdb/port_defs.h
new file mode 100644
index 0000000000000000000000000000000000000000..9771aacb92956aaf8e5613e730058e2b9aead8a3
--- /dev/null
+++ b/include/rocksdb/port_defs.h
@@ -0,0 +1,22 @@
+//  Copyright (c) Meta Platforms, Inc. and affiliates.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+//
+// This file includes the common definitions used in the port/,
+// the public API (this directory), and other directories
+
+#pragma once
+
+#include "rocksdb/rocksdb_namespace.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+enum class CpuPriority {
+  kIdle = 0,
+  kLow = 1,
+  kNormal = 2,
+  kHigh = 3,
+};
+
+}  // namespace ROCKSDB_NAMESPACE
diff --git a/port/port_posix.h b/port/port_posix.h
index 417fbf4f6114d3288e22961f7ed2934beb0a5675..cdb256a6d656241ae818fb1ebe1060560ac65e00 100644
--- a/port/port_posix.h
+++ b/port/port_posix.h
@@ -13,7 +13,7 @@
 
 #include <thread>
 
-#include "rocksdb/options.h"
+#include "rocksdb/port_defs.h"
 #include "rocksdb/rocksdb_namespace.h"
 
 // size_t printf formatting named in the manner of C99 standard formatting
diff --git a/port/win/port_win.h b/port/win/port_win.h
index 989b5620b9bb23d203fd1842ffeb07213c56f9d1..4d9883b63a7297348ee068e34cc5705105ef73ea 100644
--- a/port/win/port_win.h
+++ b/port/win/port_win.h
@@ -17,21 +17,22 @@
 #endif
 
 #include <windows.h>
-#include <string>
-#include <thread>
-#include <string.h>
-#include <mutex>
-#include <limits>
-#include <condition_variable>
-#include <malloc.h>
+//^^ <windows.h> should be included first before other system lib
 #include <intrin.h>
+#include <malloc.h>
 #include <process.h>
-
 #include <stdint.h>
+#include <string.h>
 
-#include "port/win/win_thread.h"
+#include <cassert>
+#include <condition_variable>
+#include <limits>
+#include <mutex>
+#include <string>
+#include <thread>
 
-#include "rocksdb/options.h"
+#include "port/win/win_thread.h"
+#include "rocksdb/port_defs.h"
 
 #undef min
 #undef max
diff --git a/table/multiget_context.h b/table/multiget_context.h
index 76027a9520ff61f0d98973c5600478d4249a8d2e..ca369dcb21462e1feb11e261d32be02e9b7ce026 100644
--- a/table/multiget_context.h
+++ b/table/multiget_context.h
@@ -12,6 +12,7 @@
 #include "db/lookup_key.h"
 #include "db/merge_context.h"
 #include "rocksdb/env.h"
+#include "rocksdb/options.h"
 #include "rocksdb/statistics.h"
 #include "rocksdb/types.h"
 #include "util/async_file_reader.h"
diff --git a/util/aligned_buffer.h b/util/aligned_buffer.h
index 95ee5dfe82e818a855889b0ee14f8e0385d106b1..acab56c215e87a51c1152a39d9a4bc34caf47c27 100644
--- a/util/aligned_buffer.h
+++ b/util/aligned_buffer.h
@@ -9,6 +9,7 @@
 #pragma once
 
 #include <algorithm>
+#include <cassert>
 
 #include "port/port.h"
 
diff --git a/util/core_local.h b/util/core_local.h
index b444a115225642123a5fd543a68a9da597116e64..25174aef84c63cc1e954b91b04095a64a9941db7 100644
--- a/util/core_local.h
+++ b/util/core_local.h
@@ -5,6 +5,7 @@
 
 #pragma once
 
+#include <cassert>
 #include <cstddef>
 #include <thread>
 #include <utility>
diff --git a/util/distributed_mutex.h b/util/distributed_mutex.h
index 9675a1e2deab86d7a40adfbf6604af7fd259a7b0..1734269cc9465727f1b1dde8874f2c12a81bc4e6 100644
--- a/util/distributed_mutex.h
+++ b/util/distributed_mutex.h
@@ -36,6 +36,8 @@ using DMutexLock = std::lock_guard<folly::DistributedMutex>;
 
 #else
 
+#include <mutex>
+
 #include "port/port.h"
 
 namespace ROCKSDB_NAMESPACE {
diff --git a/util/file_checksum_helper.h b/util/file_checksum_helper.h
index d622e9bba05c1b4c01bcf19dbd1b71041457f207..52469cf9f98761fefd71d328d26f806938e14265 100644
--- a/util/file_checksum_helper.h
+++ b/util/file_checksum_helper.h
@@ -8,6 +8,7 @@
 #include <unordered_map>
 
 #include "port/port.h"
+#include "rocksdb/env.h"
 #include "rocksdb/file_checksum.h"
 #include "rocksdb/status.h"
 #include "util/coding.h"
diff --git a/util/mutexlock.h b/util/mutexlock.h
index 94066b29ea447ab28cf5e192f522209d672e42c7..a5b7581538907542c15842d77e192bd3921cb531 100644
--- a/util/mutexlock.h
+++ b/util/mutexlock.h
@@ -11,6 +11,7 @@
 #include <assert.h>
 
 #include <atomic>
+#include <functional>
 #include <mutex>
 #include <thread>
 
diff --git a/util/random.cc b/util/random.cc
index c94c28dfb2b51cbbd3bdce53654e38277a9745c4..7ac6ee19a1b77c63e3415c6b6eb3b1868be0c7bb 100644
--- a/util/random.cc
+++ b/util/random.cc
@@ -6,6 +6,7 @@
 
 #include "util/random.h"
 
+#include <limits.h>
 #include <stdint.h>
 #include <string.h>