--- src/definition.cpp.orig	2021-08-17 14:04:29 UTC
+++ src/definition.cpp
@@ -5,6 +5,7 @@
 #include <string>
 
 #include <ctype.h>
+#include <sys/types.h>
 #include "md5.h"
 #include <stdio.h>
 #include <stdlib.h>
@@ -416,13 +417,11 @@ void DefinitionImpl::writeDocAnchorsToTagFile(TextStre
 
 bool DefinitionImpl::_docsAlreadyAdded(const QCString &doc,QCString &sigList)
 {
-  uchar md5_sig[16];
-  char sigStr[33];
+  QCString sigStr(33);
   // to avoid mismatches due to differences in indenting, we first remove
   // double whitespaces...
   QCString docStr = doc.simplifyWhiteSpace();
-  MD5Buffer((const unsigned char *)docStr.data(),docStr.length(),md5_sig);
-  MD5SigToString(md5_sig,sigStr);
+  MD5Data((const unsigned char *)docStr.data(),docStr.length(),sigStr.rawData());
   //printf("%s:_docsAlreadyAdded doc='%s' sig='%s' docSigs='%s'\n",
   //    qPrint(name()),qPrint(doc),qPrint(sigStr),qPrint(sigList));
   if (sigList.find(sigStr)==-1) // new docs, add signature to prevent re-adding it