diff -Nru libnss-db-2.2.3pre1/debian/changelog libnss-db-2.2.3pre1/debian/changelog
--- libnss-db-2.2.3pre1/debian/changelog	2021-08-12 09:34:19.000000000 -0600
+++ libnss-db-2.2.3pre1/debian/changelog	2021-08-13 12:29:37.000000000 -0600
@@ -1,3 +1,9 @@
+libnss-db (2.2.3pre1-6ubuntu1) impish; urgency=medium
+
+  * Drop -lnss_files, which is now built into glibc as of 2.34.
+
+ -- Dan Bungert <daniel.bungert@canonical.com>  Fri, 13 Aug 2021 12:29:37 -0600
+
 libnss-db (2.2.3pre1-6build8.1.1) impish; urgency=medium
 
   * No-change rebuild for glibc private symbol change.
diff -Nru libnss-db-2.2.3pre1/debian/patches/310-nss-files.patch libnss-db-2.2.3pre1/debian/patches/310-nss-files.patch
--- libnss-db-2.2.3pre1/debian/patches/310-nss-files.patch	1969-12-31 17:00:00.000000000 -0700
+++ libnss-db-2.2.3pre1/debian/patches/310-nss-files.patch	2021-08-13 12:29:37.000000000 -0600
@@ -0,0 +1,19 @@
+Description: Drop linkage against nss_files
+Author:     Dan Bungert <daniel.bungert@canonical.com>
+Bug-Ubuntu: https://bugs.launchpad.net/bugs/1939918
+Forwarded:  "yes"
+Last-Update:    Aug-13-2021
+
+In glibc 2.34, nss_files is no longer a distinct library,
+and is built into glibc.
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -25,7 +25,7 @@
+ libnss_db_la_LDFLAGS = -version-info $(INTERFACE) \
+ 	 -Wl,--version-script=$(srcdir)/libnss_db.map
+ libnss_db_la_DEPENDENCIES = libnss_db.map
+-libnss_db_la_LIBADD = @DB_LIBS@ -lnss_files
++libnss_db_la_LIBADD = @DB_LIBS@
+ 
+ bin_PROGRAMS = makedb
+ makedb_SOURCES = makedb.c db-compat-copy-makedb.c
diff -Nru libnss-db-2.2.3pre1/debian/patches/series libnss-db-2.2.3pre1/debian/patches/series
--- libnss-db-2.2.3pre1/debian/patches/series	2016-09-15 12:57:08.000000000 -0600
+++ libnss-db-2.2.3pre1/debian/patches/series	2021-08-13 12:29:37.000000000 -0600
@@ -10,3 +10,4 @@
 200-set-db-environment.dpatch
 intl.patch
 300-multiarch-libdir.patch
+310-nss-files.patch