--- src/membergroup.cpp.orig	2021-08-02 18:54:15 UTC
+++ src/membergroup.cpp
@@ -27,6 +27,7 @@
 #include "doxygen.h"
 #include "docparser.h"
 #include "entry.h"
+#include <sys/types.h>
 #include "md5.h"
 
 MemberGroup::MemberGroup(const Definition *container,int id,const QCString &hdr,
@@ -257,12 +258,10 @@ int MemberGroup::numDocEnumValues() const
 
 QCString MemberGroup::anchor() const
 {
-  uchar md5_sig[16];
-  char sigStr[33];
+  QCString sigStr(33);
   QCString locHeader = grpHeader;
   if (locHeader.isEmpty()) locHeader="[NOHEADER]";
-  MD5Buffer((const unsigned char *)locHeader.data(),locHeader.length(),md5_sig);
-  MD5SigToString(md5_sig,sigStr);
+  MD5Data((const unsigned char *)locHeader.data(),locHeader.length(),sigStr.rawData());
   return QCString("amgrp")+sigStr;
 }