diff -Nru racket-7.9+dfsg1/debian/changelog racket-7.9+dfsg1/debian/changelog
--- racket-7.9+dfsg1/debian/changelog	2021-07-24 14:13:09.000000000 +0000
+++ racket-7.9+dfsg1/debian/changelog	2021-09-10 14:59:50.000000000 +0000
@@ -1,3 +1,9 @@
+racket (7.9+dfsg1-2build1) impish; urgency=medium
+
+  * No-change rebuild for libffi soname change.
+
+ -- Matthias Klose <doko@ubuntu.com>  Fri, 10 Sep 2021 16:59:50 +0200
+
 racket (7.9+dfsg1-2) unstable; urgency=medium
 
   * Bug fix: "CVE-2021-32773", thanks to Moritz Mühlenhoff (Closes:
diff -Nru racket-7.9+dfsg1/debian/.gitignore racket-7.9+dfsg1/debian/.gitignore
--- racket-7.9+dfsg1/debian/.gitignore	2021-07-24 14:13:09.000000000 +0000
+++ racket-7.9+dfsg1/debian/.gitignore	1970-01-01 00:00:00.000000000 +0000
@@ -1,9 +0,0 @@
-tmp/
-racket/
-racket-common/
-racket-doc/
-plt-scheme/
-plt-scheme-doc/
-stamp-*
-*.log
-*.substvars