diff --git a/debian/patches/981652-ftcbfs-objdump.patch b/debian/patches/981652-ftcbfs-objdump.patch
new file mode 100644
index 0000000000000000000000000000000000000000..4001b4864fa630fe03747c83d2104fa7f6929d09
--- /dev/null
+++ b/debian/patches/981652-ftcbfs-objdump.patch
@@ -0,0 +1,57 @@
+Forwarded: https://github.com/codership/galera/issues/558#issuecomment-773088996
+Author: Helmut Grohne <helmut@subdivi.de>
+Description: galera-4 fails to cross build from source, because it runs the build
+ architecture objdump on a host architecture ELF object. This is due to
+ hard coding the build architecture objdump in galera/src/CMakeLists.txt.
+ The solution here is to use ${CMAKE_OBJDUMP}, which refers to the
+ correctly detected objdump for the host architecture. Beyond this, it
+ also uses ldd, which is bound to fail during cross compilation. Almost
+ the same effect can be achieved with objdump -x though, so I propose
+ using it here as well. Please consider applying the attached patch as it
+ makes galera-4 cross buildable.
+
+--- a/galera/src/CMakeLists.txt
++++ b/galera/src/CMakeLists.txt
+@@ -116,14 +116,14 @@ if (GALERA_VERSION_SCRIPT)
+     -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/galera-sym.map)
+   add_custom_command(TARGET galera_smm POST_BUILD
+     COMMAND
+-    sh -c "! objdump -T ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep asio 1> /dev/null"
++    sh -c "! ${CMAKE_OBJDUMP} -T ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep asio 1> /dev/null"
+     COMMENT "Checking library symbol visibility (hidden)"
+     VERBATIM)
+ else()
+   set(GALERA_LINK_OPTIONS "")
+   add_custom_command(TARGET galera_smm POST_BUILD
+     COMMAND
+-    sh -c "objdump -T ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep asio 1> /dev/null"
++    sh -c "${CMAKE_OBJDUMP} -T ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep asio 1> /dev/null"
+     COMMENT "Checking library symbol visibility (not hidden)"
+     VERBATIM)
+ endif()
+@@ -132,7 +132,7 @@ if (NOT GALERA_WITH_SSL)
+   message(STATUS "Building Galera without SSL")
+   add_custom_command(TARGET galera_smm POST_BUILD
+     COMMAND
+-    sh -c "! (ldd ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep crypto 1> /dev/null) && ! (ldd ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep ssl 1> /dev/null)"
++    sh -c "! (${CMAKE_OBJDUMP} -x ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep NEEDED.*crypto 1> /dev/null) && ! (${CMAKE_OBJDUMP} -x ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep NEEDED.*ssl 1> /dev/null)"
+     COMMENT "Verifying that library is not linked with SSL"
+     VERBATIM)
+ else()
+@@ -140,14 +140,14 @@ else()
+     message(STATUS "Building Galera with static SSL")
+     add_custom_command(TARGET galera_smm POST_BUILD
+       COMMAND
+-      sh -c "(objdump -t ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep OPENSSL 1> /dev/null) && (objdump -t ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep CRYPTO 1> /dev/null)"
++      sh -c "(${CMAKE_OBJDUMP} -t ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep OPENSSL 1> /dev/null) && (${CMAKE_OBJDUMP} -t ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep CRYPTO 1> /dev/null)"
+       COMMENT "Verifying that library has OpenSSL linked statically"
+       VERBATIM)
+   else()
+     message(STATUS "Building Galera with SSL")
+     add_custom_command(TARGET galera_smm POST_BUILD
+       COMMAND
+-      sh -c "(ldd ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep crypto 1> /dev/null) && (ldd ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep ssl 1> /dev/null)"
++      sh -c "(${CMAKE_OBJDUMP} -x ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep NEEDED.*crypto 1> /dev/null) && (${CMAKE_OBJDUMP} -x ${CMAKE_BINARY_DIR}/libgalera_smm.so | grep NEEDED.*ssl 1> /dev/null)"
+       COMMENT "Verifying that library is linked with SSL"
+       VERBATIM)
+   endif()
diff --git a/debian/patches/series b/debian/patches/series
index 76c4aae6b8ed610636f201017878522960baf9e1..004ebf4da3756bef64cabc233c618a5b88eeb5ba 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1 +1,2 @@
 salsa-ci-i386-builds.patch
+981652-ftcbfs-objdump.patch