diff -Nru ros-ros-comm-1.15.9+ds1/debian/changelog ros-ros-comm-1.15.9+ds1/debian/changelog
--- ros-ros-comm-1.15.9+ds1/debian/changelog	2020-12-14 11:43:50.000000000 +0000
+++ ros-ros-comm-1.15.9+ds1/debian/changelog	2020-12-21 15:16:39.000000000 +0000
@@ -1,3 +1,9 @@
+ros-ros-comm (1.15.9+ds1-4+rpi1) bullseye-staging; urgency=medium
+
+  * Link "encyrpt" tool with boost libraries
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Mon, 21 Dec 2020 15:16:39 +0000
+
 ros-ros-comm (1.15.9+ds1-4) unstable; urgency=medium
 
   * Add patch for Boost 1.74
diff -Nru ros-ros-comm-1.15.9+ds1/debian/patches/link-encrypt-tool-with-boost-libraries.patch ros-ros-comm-1.15.9+ds1/debian/patches/link-encrypt-tool-with-boost-libraries.patch
--- ros-ros-comm-1.15.9+ds1/debian/patches/link-encrypt-tool-with-boost-libraries.patch	1970-01-01 00:00:00.000000000 +0000
+++ ros-ros-comm-1.15.9+ds1/debian/patches/link-encrypt-tool-with-boost-libraries.patch	2020-12-21 15:16:39.000000000 +0000
@@ -0,0 +1,14 @@
+Description:  Link "encyrpt" tool with boost libraries
+Author: Peter Michael Green <plugwash@raspbian.org>
+
+--- ros-ros-comm-1.15.9+ds1.orig/tools/rosbag/CMakeLists.txt
++++ ros-ros-comm-1.15.9+ds1/tools/rosbag/CMakeLists.txt
+@@ -41,7 +41,7 @@ target_link_libraries(play rosbag)
+ 
+ if(NOT WIN32)
+   add_executable(encrypt src/encrypt.cpp)
+-  target_link_libraries(encrypt ${catkin_LIBRARIES})
++  target_link_libraries(encrypt ${catkin_LIBRARIES} ${Boost_LIBRARIES})
+ endif()
+ 
+ install(DIRECTORY include/${PROJECT_NAME}/
diff -Nru ros-ros-comm-1.15.9+ds1/debian/patches/series ros-ros-comm-1.15.9+ds1/debian/patches/series
--- ros-ros-comm-1.15.9+ds1/debian/patches/series	2020-12-14 11:43:50.000000000 +0000
+++ ros-ros-comm-1.15.9+ds1/debian/patches/series	2020-12-21 15:16:39.000000000 +0000
@@ -7,3 +7,4 @@
 0007-Strip-minor-version-from-PYTHON_EXECUTABLE-for-sheba.patch
 0008-Update-bind.hpp-location.patch
 0009-Fix-boost-placeholders-_7.patch
+link-encrypt-tool-with-boost-libraries.patch