--- ntp-4.2.0/configure.in	2006-09-13 10:51:32.253439861 +0300
+++ ntp-4.2.0.ssl/configure.in	2006-10-02 23:07:07.809947790 +0300
@@ -205,8 +205,10 @@
 AC_CHECK_FUNC(openlog, , 
   AC_CHECK_LIB(gen, openlog, , 
   AC_CHECK_LIB(syslog, openlog, , , -lsocket)))
+AC_CHECK_LIB(crypto, MD5_Init, , 
 AC_CHECK_LIB(md5, MD5Init, , 
   AC_CHECK_LIB(md, MD5Init))
+)
 AC_CHECK_FUNCS(MD5Init)
 dnl HMS: What a hack...
 AC_CHECK_HEADERS(readline/history.h readline/readline.h)
--- ntp-4.2.0/include/ntp_md5.h	2003-07-17 13:27:16.000000000 +0300
+++ ntp-4.2.0.ssl/include/ntp_md5.h	2006-10-02 23:15:24.871129536 +0300
@@ -2,8 +2,15 @@
  * ntp_md5.h: deal with md5.h headers
  */
 
+#ifdef HAVE_LIBCRYPTO
+# include <openssl/md5.h>
+#define	MD5Update MD5_Update
+#define	MD5Final MD5_Final
+#define	MD5Init MD5_Init
+#else
 #ifdef HAVE_MD5_H
 # include <md5.h>
 #else
 # include "rsa_md5.h"
 #endif
+#endif