diff -Nru vtk9-9.1.0+really9.1.0+dfsg2/debian/changelog vtk9-9.1.0+really9.1.0+dfsg2/debian/changelog
--- vtk9-9.1.0+really9.1.0+dfsg2/debian/changelog	2022-06-19 14:25:33.000000000 +0000
+++ vtk9-9.1.0+really9.1.0+dfsg2/debian/changelog	2022-07-15 03:48:16.000000000 +0000
@@ -1,3 +1,10 @@
+vtk9 (9.1.0+really9.1.0+dfsg2-4+rpi1) bookworm-staging; urgency=medium
+
+  [changes brought forward from 9.0.1+dfsg1-5+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Tue, 05 Jan 2021 14:46:48 +0000]
+  * Link with libatomic on armhf too for raspbian.
+
+ -- Raspbian forward porter <root@raspbian.org>  Fri, 15 Jul 2022 03:48:16 +0000
+
 vtk9 (9.1.0+really9.1.0+dfsg2-4) unstable; urgency=medium
 
   * [b05b21f] Fix FTBFS against NETCDF>4.9.0. (Closes: #1012703)
diff -Nru vtk9-9.1.0+really9.1.0+dfsg2/debian/rules vtk9-9.1.0+really9.1.0+dfsg2/debian/rules
--- vtk9-9.1.0+really9.1.0+dfsg2/debian/rules	2021-12-01 21:01:09.000000000 +0000
+++ vtk9-9.1.0+really9.1.0+dfsg2/debian/rules	2022-07-15 03:48:16.000000000 +0000
@@ -9,7 +9,7 @@
   extra_flags += -DVTK_WRAP_JAVA=ON
 endif
 
-ifneq (,$(filter $(DEB_HOST_ARCH), armel m68k mips mipsel powerpc sh4))
+ifneq (,$(filter $(DEB_HOST_ARCH), armel armhf m68k mips mipsel powerpc sh4))
   export DEB_CXXFLAGS_MAINT_APPEND += -Wl,--no-as-needed -latomic -Wl,--as-needed
   export DEB_LDFLAGS_MAINT_APPEND += -Wl,--no-as-needed -latomic -Wl,--as-needed
 endif