Unmangle cvs's MD5* calls.

contrib/cvs/lib/md5.h

@@ -1,8 +1,21 @@
 /* See md5.c for explanation and copyright information.  */
 
+/*
+ * $FreeBSD$
+ */
+
 #ifndef MD5_H
 #define MD5_H
 
+#ifdef __FreeBSD__
+#define	cvs_MD5Context	MD5Context
+#define	cvs_MD5Init	MD5Init
+#define	cvs_MD5Update	MD5Update
+#define	cvs_MD5Final	MD5Final
+#define	cvs_MD5Transform MD5Transform
+#include <sys/md5.h>
+#else
+
 /* Unlike previous versions of this code, uint32 need not be exactly
    32 bits, merely 32 bits or more.  Choosing a data type which is 32
    bits instead of 64 is not important; speed is considerably more
@@ -23,4 +36,6 @@ void cvs_MD5Final PROTO ((unsigned char digest[16],
 			  struct cvs_MD5Context *context));
 void cvs_MD5Transform PROTO ((cvs_uint32 buf[4], const unsigned char in[64]));
 
+#endif
+
 #endif /* !MD5_H */