diff --git a/libraries/liblmdb/Doxyfile b/libraries/liblmdb/Doxyfile
index e51fe756a0..8c577f83db 100644
--- a/libraries/liblmdb/Doxyfile
+++ b/libraries/liblmdb/Doxyfile
@@ -31,7 +31,7 @@ PROJECT_NAME           = LMDB
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         =
+PROJECT_NUMBER         = 1.0
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.
@@ -484,12 +484,6 @@ MAX_INITIALIZER_LINES  = 30
 
 SHOW_USED_FILES        = YES
 
-# If the sources in your project are distributed over multiple directories
-# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy
-# in the documentation. The default is NO.
-
-SHOW_DIRECTORIES       = NO
-
 # Set the SHOW_FILES tag to NO to disable the generation of the Files page.
 # This will remove the Files entry from the Quick Index and from the
 # Folder Tree View (if specified). The default is YES.
@@ -582,7 +576,7 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories
 # with spaces.
 
-INPUT                  = lmdb.h midl.h mdb.c midl.c intro.doc
+INPUT                  = lmdb.h midl.h mdb.c midl.c module.c intro.doc
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is
@@ -841,12 +835,6 @@ HTML_COLORSTYLE_GAMMA  = 80
 
 HTML_TIMESTAMP         = YES
 
-# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
-# files or namespaces will be aligned in HTML using tables. If set to
-# NO a bullet list will be used.
-
-HTML_ALIGN_MEMBERS     = YES
-
 # If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
 # documentation will contain sections that can be hidden and shown after the
 # page has loaded. For this to work a browser that supports
@@ -1027,11 +1015,6 @@ ENUM_VALUES_PER_LINE   = 4
 
 GENERATE_TREEVIEW      = NO
 
-# By enabling USE_INLINE_TREES, doxygen will generate the Groups, Directories,
-# and Class Hierarchy pages using a tree view instead of an ordered list.
-
-USE_INLINE_TREES       = NO
-
 # If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
 # used to set the initial width (in pixels) of the frame in which the tree
 # is shown.
diff --git a/libraries/liblmdb/lmdb.h b/libraries/liblmdb/lmdb.h
index 2653e5885f..0fb30528c3 100644
--- a/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@ -1238,7 +1238,7 @@ int  mdb_txn_prepare(MDB_txn *txn);
 	 * preceding #mdb_txn_commit() and this call.
 	 * @param[in] env An environment handle returned by #mdb_env_create().
 	 * @param[in] txnid The ID of the transaction to rollback, obtained from
-	 * #mdb_txnid() on the previous transaction.
+	 * #mdb_txn_id() on the previous transaction.
 	 * @return A non-zero error value on failure and 0 on success. Some possible
 	 * errors are:
 	 * <ul>
@@ -1910,10 +1910,10 @@ void mdb_modunload(void *handle);
 	 * This is just a wrapper around #mdb_env_set_encrypt() to ease use of
 	 * dynamically loaded crypto functions.
 	 * @param[in] env An environment handle returned by #mdb_env_create()
-	 * @param[in] funcs The crypto hooks retrieved by #mdb_modload().
+	 * @param[in] mcf_ptr The crypto hooks retrieved by #mdb_modload().
 	 * @param[in] passphrase The secret used to generate the encryption key for the environment.
 	 */
-void mdb_modsetup(MDB_env *env, MDB_crypto_funcs *cf, const char *passphrase);
+void mdb_modsetup(MDB_env *env, MDB_crypto_funcs *mcf_ptr, const char *passphrase);
 
 /**	@} */
 
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 0222ff0d39..57d5ddfe10 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -11773,8 +11773,12 @@ mdb_env_incr_dump(MDB_env *env, const char *path, size_t txnid)
 int ESECT
 mdb_env_incr_loadfd(MDB_env *env, HANDLE fd)
 {
+#ifdef _WIN32
+	DWORD rsize, rlen;
+#else
 	size_t rsize;
 	ssize_t rlen;
+#endif
 	char buf[PAGEHDRSZ], *ptr;
 	MDB_page *rp = (MDB_page *)buf, *mp;
 
diff --git a/libraries/liblmdb/module.c b/libraries/liblmdb/module.c
index 63062ad881..2c59cd0d90 100644
--- a/libraries/liblmdb/module.c
+++ b/libraries/liblmdb/module.c
@@ -1,4 +1,5 @@
-/* module.c - helper for dynamically loading crypto module */
+/**	@file module.c
+ *	@brief helper for dynamically loading crypto module */
 /*
  * Copyright 2020-2021 Howard Chu, Symas Corp.
  * All rights reserved.
@@ -33,7 +34,7 @@ mdb_modload(const char *file, const char *name, MDB_crypto_funcs **mcf_ptr, char
 	{
 		HINSTANCE mlm = LoadLibrary(file);
 		if (mlm) {
-			hookfunc = GetProcAddress(mlm, name);
+			hookfunc = (MDB_crypto_hooks *)GetProcAddress(mlm, name);
 			if (hookfunc)
 				*mcf_ptr = hookfunc();
 			else {
@@ -42,7 +43,7 @@ mdb_modload(const char *file, const char *name, MDB_crypto_funcs **mcf_ptr, char
 				mlm = NULL;
 			}
 		} else {
-			*errmsg = GetLastError();
+			*errmsg = "GetProcAddress failed"; /* GetLastError(); */
 		}
 		ret = (void *)mlm;
 	}