diff -Nru stockfish-12/debian/changelog stockfish-12/debian/changelog
--- stockfish-12/debian/changelog	2021-01-07 20:18:11.000000000 +0000
+++ stockfish-12/debian/changelog	2021-01-15 15:24:05.000000000 +0000
@@ -1,3 +1,10 @@
+stockfish (12-2+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>  Fri, 15 Jan 2021 15:24:05 +0000
+
 stockfish (12-2) unstable; urgency=medium
 
   * Fix FBTFS on i386; thanks to Sven Joachim; closes: #979519.
diff -Nru stockfish-12/debian/rules stockfish-12/debian/rules
--- stockfish-12/debian/rules	2021-01-07 20:18:11.000000000 +0000
+++ stockfish-12/debian/rules	2021-01-15 15:24:05.000000000 +0000
@@ -58,6 +58,7 @@
 
 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))