4 files changed, 27 insertions, 2 deletions
diff --git a/crypto/evp/legacy_md4.c b/crypto/evp/legacy_md4.c
index b68a59fb85..4f91a9b27a 100644
--- a/crypto/evp/legacy_md4.c
+++ b/crypto/evp/legacy_md4.c
@@ -7,6 +7,12 @@
  * https://www.openssl.org/source/license.html
  */
 
+/*
+ * MD4 low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
 #include <openssl/md4.h>
 #include "crypto/evp.h"
 #include "legacy_meth.h"
diff --git a/crypto/md4/build.info b/crypto/md4/build.info
index 20846e0dce..7b36a0421e 100644
--- a/crypto/md4/build.info
+++ b/crypto/md4/build.info
@@ -1,3 +1,10 @@
 LIBS=../../libcrypto
-SOURCE[../../libcrypto]=\
-        md4_dgst.c md4_one.c
+
+SOURCE[../../libcrypto]=md4_dgst.c md4_one.c
+
+# When all deprecated symbols are removed, libcrypto doesn't export the
+# MD4 functions, so we must include them directly in liblegacy.a
+IF[{- $disabled{"deprecated"}
+      && (defined $config{"api"} && $config{"api"} >= 30000) -}]
+  SOURCE[../../providers/liblegacy.a]=md4_dgst.c md4_one.c
+ENDIF
diff --git a/crypto/md4/md4_dgst.c b/crypto/md4/md4_dgst.c
index cf95fbe622..531676a2af 100644
--- a/crypto/md4/md4_dgst.c
+++ b/crypto/md4/md4_dgst.c
@@ -7,6 +7,12 @@
  * https://www.openssl.org/source/license.html
  */
 
+/*
+ * MD4 low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
 #include <stdio.h>
 #include <openssl/opensslv.h>
 #include "md4_local.h"
diff --git a/crypto/md4/md4_one.c b/crypto/md4/md4_one.c
index 0383f9bc0d..25f8eb8bba 100644
--- a/crypto/md4/md4_one.c
+++ b/crypto/md4/md4_one.c
@@ -7,6 +7,12 @@
  * https://www.openssl.org/source/license.html
  */
 
+/*
+ * MD4 low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
 #include <stdio.h>
 #include <string.h>
 #include <openssl/md4.h>