Enable deprecated API wrappers for _ALT implementation
diff --git a/library/md4.c b/library/md4.c
index ba704f5..8adf523 100644
--- a/library/md4.c
+++ b/library/md4.c
@@ -224,6 +224,7 @@
 
     return( 0 );
 }
+#endif /* !MBEDTLS_MD4_PROCESS_ALT */
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
 void mbedtls_md4_process( mbedtls_md4_context *ctx,
@@ -232,7 +233,6 @@
     mbedtls_internal_md4_process( ctx, data );
 }
 #endif
-#endif /* !MBEDTLS_MD4_PROCESS_ALT */
 
 /*
  * MD4 process buffer