diff -Nru vtk9-9.1.0+really9.0.3+dfsg1/debian/changelog vtk9-9.1.0+really9.0.3+dfsg1/debian/changelog
--- vtk9-9.1.0+really9.0.3+dfsg1/debian/changelog	2021-11-28 22:34:47.000000000 +0000
+++ vtk9-9.1.0+really9.0.3+dfsg1/debian/changelog	2021-12-02 19:14:52.000000000 +0000
@@ -1,3 +1,10 @@
+vtk9 (9.1.0+really9.0.3+dfsg1-4+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>  Thu, 02 Dec 2021 19:14:52 +0000
+
 vtk9 (9.1.0+really9.0.3+dfsg1-4) unstable; urgency=medium
 
   * [90cbc11] vtkFreeTypeTools: avoid using an internal macro.
diff -Nru vtk9-9.1.0+really9.0.3+dfsg1/debian/rules vtk9-9.1.0+really9.0.3+dfsg1/debian/rules
--- vtk9-9.1.0+really9.0.3+dfsg1/debian/rules	2021-11-28 22:34:06.000000000 +0000
+++ vtk9-9.1.0+really9.0.3+dfsg1/debian/rules	2021-12-02 19:14:52.000000000 +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