Fix the build on Windows.

Restore MYSQL_SYSVAR_UINT64_T and MYSQL_SYSVAR_SIZE_T in
plugin.h

include/mysql/plugin.h

@@ -393,6 +393,23 @@ DECLARE_MYSQL_SYSVAR_SIMPLE(name, unsigned long long) = { \
   PLUGIN_VAR_LONGLONG | PLUGIN_VAR_UNSIGNED | ((opt) & PLUGIN_VAR_MASK), \
   #name, comment, check, update, &varname, def, min, max, blk }
 
+#define MYSQL_SYSVAR_UINT64_T(name, varname, opt, comment, check, update, def, min, max, blk) \
+DECLARE_MYSQL_SYSVAR_SIMPLE(name, uint64_t) = { \
+  PLUGIN_VAR_LONGLONG | PLUGIN_VAR_UNSIGNED | ((opt) & PLUGIN_VAR_MASK), \
+  #name, comment, check, update, &varname, def, min, max, blk }
+
+#ifdef _WIN64
+#define MYSQL_SYSVAR_SIZE_T(name, varname, opt, comment, check, update, def, min, max, blk) \
+DECLARE_MYSQL_SYSVAR_SIMPLE(name, size_t) = { \
+  PLUGIN_VAR_LONGLONG | PLUGIN_VAR_UNSIGNED | ((opt) & PLUGIN_VAR_MASK), \
+  #name, comment, check, update, &varname, def, min, max, blk }
+#else
+#define MYSQL_SYSVAR_SIZE_T(name, varname, opt, comment, check, update, def, min, max, blk) \
+DECLARE_MYSQL_SYSVAR_SIMPLE(name, size_t) = { \
+  PLUGIN_VAR_LONG | PLUGIN_VAR_UNSIGNED | ((opt) & PLUGIN_VAR_MASK), \
+  #name, comment, check, update, &varname, def, min, max, blk }
+#endif
+
 #define MYSQL_SYSVAR_ENUM(name, varname, opt, comment, check, update, def, typelib) \
 DECLARE_MYSQL_SYSVAR_TYPELIB(name, unsigned long) = { \
   PLUGIN_VAR_ENUM | ((opt) & PLUGIN_VAR_MASK), \

storage/rocksdb/ha_rocksdb.cc

@@ -454,18 +454,6 @@ const int64 RDB_DEFAULT_BLOCK_CACHE_SIZE = 512 * 1024 * 1024;
 const int64 RDB_MIN_BLOCK_CACHE_SIZE = 1024;
 const int RDB_MAX_CHECKSUMS_PCT = 100;
 
-#if SIZEOF_ULONG == SIZEOF_SIZE_T
-#define MYSQL_SYSVAR_SIZE_T MYSQL_SYSVAR_ULONG
-#else
-#define MYSQL_SYSVAR_SIZE_T MYSQL_SYSVAR_ULONGLONG
-#endif
-
-#if SIZEOF_ULONG == SIZEOF_UINT64_T
-#define MYSQL_SYSVAR_UINT64_T MYSQL_SYSVAR_ULONG
-#else
-#define MYSQL_SYSVAR_UINT64_T MYSQL_SYSVAR_ULONGLONG
-#endif
-
 // TODO: 0 means don't wait at all, and we don't support it yet?
 static MYSQL_THDVAR_ULONG(lock_wait_timeout, PLUGIN_VAR_RQCMDARG,
                           "Number of seconds to wait for lock", nullptr,