diff -Nru utf8proc-2.7.0/debian/changelog utf8proc-2.7.0/debian/changelog
--- utf8proc-2.7.0/debian/changelog	2021-12-27 07:47:18.000000000 +0000
+++ utf8proc-2.7.0/debian/changelog	2022-01-17 14:00:45.000000000 +0000
@@ -1,3 +1,10 @@
+utf8proc (2.7.0-3+rpi1) bookworm-staging; urgency=medium
+
+  [changes brought forward from 2.7.0-1+rpi1 by root <Peter Michael Green <plugwash@raspbian.org> at Fri, 24 Dec 2021 05:29:20 +0000]
+  * Force C.utf-8 locale.
+
+ -- Raspbian forward porter <root@raspbian.org>  Mon, 17 Jan 2022 14:00:45 +0000
+
 utf8proc (2.7.0-3) unstable; urgency=medium
 
   * Upstream's Makefile is not parallel-safe,
diff -Nru utf8proc-2.7.0/debian/rules utf8proc-2.7.0/debian/rules
--- utf8proc-2.7.0/debian/rules	2021-12-27 06:44:17.000000000 +0000
+++ utf8proc-2.7.0/debian/rules	2022-01-17 14:00:45.000000000 +0000
@@ -1,5 +1,6 @@
 #!/usr/bin/make -f
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+export LC_ALL=C.UTF-8
 
 %:
 	dh $@ --no-parallel