diff -Nru groff-1.23.0/debian/changelog groff-1.23.0/debian/changelog
--- groff-1.23.0/debian/changelog	2023-07-13 04:30:17.000000000 +0000
+++ groff-1.23.0/debian/changelog	2023-07-14 16:44:41.000000000 +0000
@@ -1,3 +1,9 @@
+groff (1.23.0-2) unstable; urgency=medium
+
+  * Map CW to R for nroff (closes: #1040975).
+
+ -- Colin Watson <cjwatson@debian.org>  Fri, 14 Jul 2023 17:44:41 +0100
+
 groff (1.23.0-1) unstable; urgency=medium
 
   * New upstream release (closes: #1040440):
diff -Nru groff-1.23.0/debian/.git-dpm groff-1.23.0/debian/.git-dpm
--- groff-1.23.0/debian/.git-dpm	2023-07-13 04:30:17.000000000 +0000
+++ groff-1.23.0/debian/.git-dpm	2023-07-14 16:44:41.000000000 +0000
@@ -1,6 +1,6 @@
 # see git-dpm(1) from git-dpm package
-43f8bc8009a33929db3f3bafadf17f606c1b850a
-43f8bc8009a33929db3f3bafadf17f606c1b850a
+742dfac36f1fd23e17d27dbf83e3793d3f3a063d
+742dfac36f1fd23e17d27dbf83e3793d3f3a063d
 4e2e28947560f0b5e3a7e89d43846b9183fb4c09
 4e2e28947560f0b5e3a7e89d43846b9183fb4c09
 groff_1.23.0.orig.tar.gz
diff -Nru groff-1.23.0/debian/patches/nroff-map-CW-to-R.patch groff-1.23.0/debian/patches/nroff-map-CW-to-R.patch
--- groff-1.23.0/debian/patches/nroff-map-CW-to-R.patch	1970-01-01 00:00:00.000000000 +0000
+++ groff-1.23.0/debian/patches/nroff-map-CW-to-R.patch	2023-07-14 16:44:41.000000000 +0000
@@ -0,0 +1,40 @@
+From 742dfac36f1fd23e17d27dbf83e3793d3f3a063d Mon Sep 17 00:00:00 2001
+From: Colin Watson <cjwatson@debian.org>
+Date: Fri, 14 Jul 2023 12:42:26 +0100
+Subject: Map CW to R for nroff
+
+Bug-Debian: https://bugs.debian.org/1040975
+Last-Update: 2023-07-14
+
+Patch-Name: nroff-map-CW-to-R.patch
+---
+ tmac/man.local  | 2 +-
+ tmac/mdoc.local | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/tmac/man.local b/tmac/man.local
+index 0bb667bd4..1aaaadd6a 100644
+--- a/tmac/man.local
++++ b/tmac/man.local
+@@ -12,7 +12,7 @@
+ .\" Uncomment this to suppress warnings produced by such pages.  This
+ .\" test remaps the font to roman ("R") on nroff (terminal) devices. You
+ .\" might prefer to remap it to bold ("B") instead.
+-.\" .if n .ftr CW R
++.if n .ftr CW R
+ .\"
+ .\" A de facto standard URL format for man pages is recognized
+ .\" everywhere except Apple, where different macOS applications expect
+diff --git a/tmac/mdoc.local b/tmac/mdoc.local
+index 94688aba0..66dcc423d 100644
+--- a/tmac/mdoc.local
++++ b/tmac/mdoc.local
+@@ -6,7 +6,7 @@
+ .\" Uncomment this to suppress warnings produced by such pages.  This
+ .\" test remaps the font to roman ("R") on nroff (terminal) devices. You
+ .\" might prefer to remap it to bold ("B") instead.
+-.\" .if n .ftr CW R
++.if n .ftr CW R
+ .\"
+ .\" Local Variables:
+ .\" mode: nroff
diff -Nru groff-1.23.0/debian/patches/series groff-1.23.0/debian/patches/series
--- groff-1.23.0/debian/patches/series	2023-07-13 04:30:17.000000000 +0000
+++ groff-1.23.0/debian/patches/series	2023-07-14 16:44:41.000000000 +0000
@@ -9,3 +9,4 @@
 source-date-epoch-utc.patch
 doc-default-os-debian.patch
 man-hyperlinks.patch
+nroff-map-CW-to-R.patch