chore: include the target arch in the packaged artifact

Author: acolombier

CMakeLists.txt

@@ -3977,6 +3977,11 @@ set(CPACK_CREATE_DESKTOP_LINKS "mixxx")
 set(CPACK_MIXXX_VERSION "${MIXXX_VERSION}")
 # Save GIT values just in case they have been set manual via cmake
 set(CPACK_GIT_DESCRIBE "${GIT_DESCRIBE}")
+if(CMAKE_SYSTEM_PROCESSOR)
+  string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" CPACK_SYSTEM_PROCESSOR)
+else()
+  string(TOLOWER "${CMAKE_HOST_SYSTEM_PROCESSOR}" CPACK_SYSTEM_PROCESSOR)
+endif()
 set(CPACK_GIT_COMMIT_DATE ${GIT_COMMIT_DATE})
 
 # Detailed version information, git info and package file name are set from

packaging/CPackConfig.cmake

@@ -11,7 +11,7 @@ if(NOT GIT_DESCRIBE)
 else()
   set(PACKAGE_VERSION "${GIT_DESCRIBE}")
 endif()
-set(CPACK_PACKAGE_FILE_NAME "mixxx-${PACKAGE_VERSION}")
+set(CPACK_PACKAGE_FILE_NAME "mixxx-${PACKAGE_VERSION}-${CPACK_SYSTEM_PROCESSOR}")
 set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_FILE_NAME}-source")
 
 # The upstream version must not contain hyphen