diff -ru rpm-4.15.1.orig/lib/rpmchroot.c rpm-4.15.1/lib/rpmchroot.c

--- rpm-4.15.1.orig/lib/rpmchroot.c	2019-11-13 10:19:29.309710594 +0100

+++ rpm-4.15.1/lib/rpmchroot.c	2020-01-04 18:36:56.323408444 +0100

@@ -66,7 +66,7 @@

 	setup_map("/proc/self/gid_map", 0, gid);

 	unshared = 1;

     }

-    rpmlog(RPMLOG_DEBUG, "user ns: %d original user %d:%d current %d:%d\n",

+    rpmlog(RPMLOG_DEBUG, "user ns: %d original user %ld:%ld current %ld:%ld\n",

 	    unshared, uid, gid, getuid(), getgid());

 }

 #else

diff -ru rpm-4.15.1.orig/macros.in rpm-4.15.1/macros.in

--- rpm-4.15.1.orig/macros.in	2019-11-13 10:19:29.311710606 +0100

+++ rpm-4.15.1/macros.in	2020-01-04 18:41:36.981113433 +0100

@@ -619,7 +619,7 @@

 # lmdb Lightning Memory-mapped Database

 # ndb new data base format

 #

-%_db_backend	      bdb

+%_db_backend	      ndb

 #

 #	Macros used to configure Berkley db parameters.

diff --git a/rpmio/digest_libgcrypt.c b/rpmio/digest_libgcrypt.c

index b31fda569..291187f60 100644

--- a/rpmio/digest_libgcrypt.c

+++ b/rpmio/digest_libgcrypt.c

@@ -20,6 +20,8 @@ struct DIGEST_CTX_s {

 /****************************  init   ************************************/

 int rpmInitCrypto(void) {

+    gcry_check_version (NULL);

+    gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);

     return 0;

 }