I am uploading a NMU with the enclosed changes to DELAYED/10 to fix this.
diff -Nru littler-0.3.20/debian/changelog littler-0.3.20/debian/changelog
--- littler-0.3.20/debian/changelog 2024-03-23 22:20:24.000000000 +0000
+++ littler-0.3.20/debian/changelog 2024-12-13 12:21:04.000000000 +0000
@@ -1,3 +1,10 @@
+littler (0.3.20-1.1) unstable; urgency=medium
+
+ * Non-maintainer upload
+ * Drop unnecessary simple-patchsys include (Closes: #1089832)
+
+ -- Bastian Germann <b...@debian.org> Fri, 13 Dec 2024 12:21:04 +0000
+
littler (0.3.20-1) unstable; urgency=medium
* New upstream release
diff -Nru littler-0.3.20/debian/rules littler-0.3.20/debian/rules
--- littler-0.3.20/debian/rules 2021-07-25 16:02:12.000000000 +0000
+++ littler-0.3.20/debian/rules 2024-12-13 12:21:04.000000000 +0000
@@ -13,15 +13,6 @@
include /usr/share/cdbs/1/rules/debhelper.mk
include /usr/share/cdbs/1/class/langcore.mk
-## include /usr/share/cdbs/1/rules/dpatch.mk
-## include /usr/share/cdbs/1/rules/simple-patchsys.mk
-
-# Check whether source format 3.0 (quilt) is used. If yes, do not include the
conflicting simple-patchsys.mk
-formatfile := $(CURDIR)/debian/source/format
-format_3_quilt = $(shell if [ -f $(formatfile) ] ; then if grep -q
'3.0[[:space:]]*(quilt)' $(formatfile) ; then echo 1 ; else echo 0 ; fi else
echo 0 ; fi )
-ifeq ($(format_3_quilt),0)
- include /usr/share/cdbs/1/rules/simple-patchsys.mk
-endif
# awk command to extract word after Package or Bundle, not lowercased
awkString := "'/^(Package|Bundle):/ {print $$2 }'"