diff --git a/Makefile.inc1 b/Makefile.inc1
index 213e1c68c9ba..942fad333c7f 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -1361,6 +1361,9 @@ _kerberos5_bootstrap_tools= \
 .ORDER: ${_kerberos5_bootstrap_tools:C/^/${_bt}-/g}
 .endif
 
+# Rebuild up-to-date libmd for xinstall
+${_bt}-usr.bin/xinstall: ${_bt}-lib/libmd
+
 bootstrap-tools: .PHONY
 
 #	Please document (add comment) why something is in 'bootstrap-tools'.
diff --git a/lib/libmd/md4.h b/lib/libmd/md4.h
index efef98fa5a1d..086a27b6ba22 100644
--- a/lib/libmd/md4.h
+++ b/lib/libmd/md4.h
@@ -38,14 +38,30 @@ __BEGIN_DECLS
 
 /* Ensure libmd symbols do not clash with libcrypto */
 
+#ifndef MD4Init
 #define MD4Init		_libmd_MD4Init
+#endif
+#ifndef MD4Update
 #define MD4Update	_libmd_MD4Update
+#endif
+#ifndef MD4Pad
 #define MD4Pad		_libmd_MD4Pad
+#endif
+#ifndef MD4Final
 #define MD4Final	_libmd_MD4Final
+#endif
+#ifndef MD4End
 #define MD4End		_libmd_MD4End
+#endif
+#ifndef MD4File
 #define MD4File		_libmd_MD4File
+#endif
+#ifndef MD4FileChunk
 #define MD4FileChunk	_libmd_MD4FileChunk
+#endif
+#ifndef MD4Data
 #define MD4Data		_libmd_MD4Data
+#endif
 
 void   MD4Init(MD4_CTX *);
 void   MD4Update(MD4_CTX *, const void *, unsigned int);
diff --git a/lib/libmd/md5.h b/lib/libmd/md5.h
index 1d6ee6c52fe8..5ab3b1417633 100644
--- a/lib/libmd/md5.h
+++ b/lib/libmd/md5.h
@@ -7,15 +7,33 @@
 
 /* Ensure libmd symbols do not clash with libcrypto */
 
+#ifndef MD5Init
 #define MD5Init		_libmd_MD5Init
+#endif
+#ifndef MD5Update
 #define MD5Update	_libmd_MD5Update
+#endif
+#ifndef MD5Pad
 #define MD5Pad		_libmd_MD5Pad
+#endif
+#ifndef MD5Final
 #define MD5Final	_libmd_MD5Final
+#endif
+#ifndef MD5Transform
 #define MD5Transform	_libmd_MD5Transform
+#endif
+#ifndef MD5End
 #define MD5End		_libmd_MD5End
+#endif
+#ifndef MD5File
 #define MD5File		_libmd_MD5File
+#endif
+#ifndef MD5FileChunk
 #define MD5FileChunk	_libmd_MD5FileChunk
+#endif
+#ifndef MD5Data
 #define MD5Data		_libmd_MD5Data
+#endif
 
 #endif
 
diff --git a/lib/libmd/ripemd.h b/lib/libmd/ripemd.h
index 1f8725a60c40..778808f7c9f8 100644
--- a/lib/libmd/ripemd.h
+++ b/lib/libmd/ripemd.h
@@ -84,17 +84,37 @@ __BEGIN_DECLS
 
 /* Ensure libmd symbols do not clash with libcrypto */
 
+#ifndef RIPEMD160_Init
 #define RIPEMD160_Init		_libmd_RIPEMD160_Init
+#endif
+#ifndef RIPEMD160_Update
 #define RIPEMD160_Update	_libmd_RIPEMD160_Update
+#endif
+#ifndef RIPEMD160_Final
 #define RIPEMD160_Final		_libmd_RIPEMD160_Final
+#endif
+#ifndef RIPEMD160_End
 #define RIPEMD160_End		_libmd_RIPEMD160_End
+#endif
+#ifndef RIPEMD160_File
 #define RIPEMD160_File		_libmd_RIPEMD160_File
+#endif
+#ifndef RIPEMD160_FileChunk
 #define RIPEMD160_FileChunk	_libmd_RIPEMD160_FileChunk
+#endif
+#ifndef RIPEMD160_Data
 #define RIPEMD160_Data		_libmd_RIPEMD160_Data
+#endif
 
+#ifndef RIPEMD160_Transform
 #define RIPEMD160_Transform	_libmd_RIPEMD160_Transform
+#endif
+#ifndef RMD160_version
 #define RMD160_version		_libmd_RMD160_version
+#endif
+#ifndef ripemd160_block
 #define ripemd160_block		_libmd_ripemd160_block
+#endif
 
 void	RIPEMD160_Init(RIPEMD160_CTX *c);
 void	RIPEMD160_Update(RIPEMD160_CTX *c, const void *data,
diff --git a/lib/libmd/sha.h b/lib/libmd/sha.h
index 502f1ae32c6f..c608c5ba85b3 100644
--- a/lib/libmd/sha.h
+++ b/lib/libmd/sha.h
@@ -82,29 +82,69 @@ __BEGIN_DECLS
 
 /* Ensure libmd symbols do not clash with libcrypto */
 
+#ifndef SHA_Init
 #define SHA_Init	_libmd_SHA_Init
+#endif
+#ifndef SHA_Update
 #define SHA_Update	_libmd_SHA_Update
+#endif
+#ifndef SHA_Final
 #define SHA_Final	_libmd_SHA_Final
+#endif
+#ifndef SHA_End
 #define SHA_End		_libmd_SHA_End
+#endif
+#ifndef SHA_File
 #define SHA_File	_libmd_SHA_File
+#endif
+#ifndef SHA_FileChunk
 #define SHA_FileChunk	_libmd_SHA_FileChunk
+#endif
+#ifndef SHA_Data
 #define SHA_Data	_libmd_SHA_Data
+#endif
 
+#ifndef SHA_Transform
 #define SHA_Transform	_libmd_SHA_Transform
+#endif
+#ifndef SHA_version
 #define SHA_version	_libmd_SHA_version
+#endif
+#ifndef sha_block
 #define sha_block	_libmd_sha_block
+#endif
 
+#ifndef SHA1_Init
 #define SHA1_Init	_libmd_SHA1_Init
+#endif
+#ifndef SHA1_Update
 #define SHA1_Update	_libmd_SHA1_Update
+#endif
+#ifndef SHA1_Final
 #define SHA1_Final	_libmd_SHA1_Final
+#endif
+#ifndef SHA1_End
 #define SHA1_End	_libmd_SHA1_End
+#endif
+#ifndef SHA1_File
 #define SHA1_File	_libmd_SHA1_File
+#endif
+#ifndef SHA1_FileChunk
 #define SHA1_FileChunk	_libmd_SHA1_FileChunk
+#endif
+#ifndef SHA1_Data
 #define SHA1_Data	_libmd_SHA1_Data
+#endif
 
+#ifndef SHA1_Transform
 #define SHA1_Transform	_libmd_SHA1_Transform
+#endif
+#ifndef SHA1_version
 #define SHA1_version	_libmd_SHA1_version
+#endif
+#ifndef sha1_block
 #define sha1_block	_libmd_sha1_block
+#endif
 
 void	SHA_Init(SHA_CTX *c);
 void	SHA_Update(SHA_CTX *c, const void *data, size_t len);
diff --git a/lib/libmd/sha256.h b/lib/libmd/sha256.h
index 4ea2d25038a1..f55d1d39d327 100644
--- a/lib/libmd/sha256.h
+++ b/lib/libmd/sha256.h
@@ -41,16 +41,34 @@ __BEGIN_DECLS
 
 /* Ensure libmd symbols do not clash with libcrypto */
 
+#ifndef SHA256_Init
 #define SHA256_Init		_libmd_SHA256_Init
+#endif
+#ifndef SHA256_Update
 #define SHA256_Update		_libmd_SHA256_Update
+#endif
+#ifndef SHA256_Final
 #define SHA256_Final		_libmd_SHA256_Final
+#endif
+#ifndef SHA256_End
 #define SHA256_End		_libmd_SHA256_End
+#endif
+#ifndef SHA256_File
 #define SHA256_File		_libmd_SHA256_File
+#endif
+#ifndef SHA256_FileChunk
 #define SHA256_FileChunk	_libmd_SHA256_FileChunk
+#endif
+#ifndef SHA256_Data
 #define SHA256_Data		_libmd_SHA256_Data
+#endif
 
+#ifndef SHA256_Transform
 #define SHA256_Transform	_libmd_SHA256_Transform
+#endif
+#ifndef SHA256_version
 #define SHA256_version		_libmd_SHA256_version
+#endif
 
 void	SHA256_Init(SHA256_CTX *);
 void	SHA256_Update(SHA256_CTX *, const void *, size_t);
diff --git a/lib/libmd/sha512.h b/lib/libmd/sha512.h
index 101597e17bb7..b034ca50f72b 100644
--- a/lib/libmd/sha512.h
+++ b/lib/libmd/sha512.h
@@ -41,16 +41,34 @@ __BEGIN_DECLS
 
 /* Ensure libmd symbols do not clash with libcrypto */
 
+#ifndef SHA512_Init
 #define SHA512_Init		_libmd_SHA512_Init
+#endif
+#ifndef SHA512_Update
 #define SHA512_Update		_libmd_SHA512_Update
+#endif
+#ifndef SHA512_Final
 #define SHA512_Final		_libmd_SHA512_Final
+#endif
+#ifndef SHA512_End
 #define SHA512_End		_libmd_SHA512_End
+#endif
+#ifndef SHA512_File
 #define SHA512_File		_libmd_SHA512_File
+#endif
+#ifndef SHA512_FileChunk
 #define SHA512_FileChunk	_libmd_SHA512_FileChunk
+#endif
+#ifndef SHA512_Data
 #define SHA512_Data		_libmd_SHA512_Data
+#endif
 
+#ifndef SHA512_Transform
 #define SHA512_Transform	_libmd_SHA512_Transform
+#endif
+#ifndef SHA512_version
 #define SHA512_version		_libmd_SHA512_version
+#endif
 
 void	SHA512_Init(SHA512_CTX *);
 void	SHA512_Update(SHA512_CTX *, const void *, size_t);