diff -Nru gmerlin-2.0.0~svn6298~dfsg0/debian/changelog gmerlin-2.0.0~svn6298~dfsg0/debian/changelog
--- gmerlin-2.0.0~svn6298~dfsg0/debian/changelog	2022-02-12 17:28:32.000000000 +0000
+++ gmerlin-2.0.0~svn6298~dfsg0/debian/changelog	2022-03-08 14:06:20.000000000 +0000
@@ -1,3 +1,11 @@
+gmerlin (2.0.0~svn6298~dfsg0-2) unstable; urgency=medium
+
+  * Add patch for reproducible manpages.
+    Thanks to Vagrant Cascadian <vagrant@reproducible-builds.org>
+    (Closes: #1006256)
+
+ -- IOhannes m zmölnig (Debian/GNU) <umlaeute@debian.org>  Tue, 08 Mar 2022 15:06:20 +0100
+
 gmerlin (2.0.0~svn6298~dfsg0-1) unstable; urgency=medium
 
   * Upload to unstable.
diff -Nru gmerlin-2.0.0~svn6298~dfsg0/debian/patches/reproducible-manpage.patch gmerlin-2.0.0~svn6298~dfsg0/debian/patches/reproducible-manpage.patch
--- gmerlin-2.0.0~svn6298~dfsg0/debian/patches/reproducible-manpage.patch	1970-01-01 00:00:00.000000000 +0000
+++ gmerlin-2.0.0~svn6298~dfsg0/debian/patches/reproducible-manpage.patch	2022-03-08 14:06:20.000000000 +0000
@@ -0,0 +1,38 @@
+From d532ebe90243f9390b0b1e49f1d4918f173238a6 Mon Sep 17 00:00:00 2001
+From: Vagrant Cascadian <vagrant@reproducible-builds.org>
+Date: Tue, 22 Feb 2022 03:25:25 +0000
+Subject: [PATCH] lib/cmdline.c: Use deterministic timestamp when generating
+ manpages.
+
+Use the SOURCE_DATE_EPOCH environment variable if available, and use
+numeric date to avoid embedding locale-dependent month names.
+
+https://reproducible-builds.org/docs/source-date-epoch/
+---
+ lib/cmdline.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/lib/cmdline.c b/lib/cmdline.c
+index 4b4d2f6..049e905 100644
+--- a/lib/cmdline.c
++++ b/lib/cmdline.c
+@@ -441,9 +441,13 @@ void bg_cmdline_print_help(char * argv0, bg_help_format_t format)
+       char ** args;
+       char * string_uc;
+       
+-      time(&t);
+-      localtime_r(&t, &brokentime);
+-      strftime(date_str, 511, "%B %Y", &brokentime);
++      char *source_date_epoch;
++      /* This assumes that the SOURCE_DATE_EPOCH environment variable will contain
++         a correct, positive integer in the time_t range */
++      if ((source_date_epoch = getenv("SOURCE_DATE_EPOCH")) == NULL ||
++          (t = (time_t)strtoll(source_date_epoch, NULL, 10)) <= 0)
++        time(&t);
++      strftime(date_str, 511, "%F", gmtime(&t));
+ 
+       string_uc = bg_toupper(bg_app_get_name());
+       
+-- 
+2.35.1
+
diff -Nru gmerlin-2.0.0~svn6298~dfsg0/debian/patches/series gmerlin-2.0.0~svn6298~dfsg0/debian/patches/series
--- gmerlin-2.0.0~svn6298~dfsg0/debian/patches/series	2022-02-12 17:28:32.000000000 +0000
+++ gmerlin-2.0.0~svn6298~dfsg0/debian/patches/series	2022-03-08 14:06:20.000000000 +0000
@@ -1,5 +1,6 @@
 fix-spelling.patch
 format_literal.patch
 gmerlin-transcoder.patch
+reproducible-manpage.patch
 DEBIAN_strip-doc-out.patch
 DEBIAN_replace-bg_sem_h.patch