diff -Nru stockfish-11/debian/changelog stockfish-11/debian/changelog
--- stockfish-11/debian/changelog	2020-01-27 20:56:03.000000000 +0000
+++ stockfish-11/debian/changelog	2020-04-04 15:33:48.000000000 +0000
@@ -1,3 +1,10 @@
+stockfish (11-1+rpi1) bullseye-staging; urgency=medium
+
+  [changes brought forward from 9-2+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Tue, 12 Mar 2019 23:54:56 +0000]
+  * Use libatomic on armhf too for raspbian.
+
+ -- Raspbian forward porter <root@raspbian.org>  Sat, 04 Apr 2020 15:33:48 +0000
+
 stockfish (11-1) unstable; urgency=medium
 
   * New upstream version.
diff -Nru stockfish-11/debian/rules stockfish-11/debian/rules
--- stockfish-11/debian/rules	2018-09-08 19:27:27.000000000 +0000
+++ stockfish-11/debian/rules	2020-04-04 15:33:48.000000000 +0000
@@ -62,6 +62,7 @@
 
 ifneq (,$(findstring armhf,$(DEB_HOST_ARCH)))
 TARGET := build ARCH=general-$(DEB_HOST_ARCH_BITS)
+export DEB_LDFLAGS_MAINT_APPEND=-latomic
 endif
 
 ifeq (ia64,$(DEB_HOST_ARCH_CPU))