Rename output windows msi (#3330)

Co-authored-by: MatusGuy <[email protected]>

Author: MatusGuy

mk/cmake/SuperTux/BuildCPack.cmake

@@ -61,7 +61,14 @@ else()
   set(CPACK_PACKAGE_VERSION_PATCH ${SUPERTUX_VERSION_PATCH})
 endif()
 
-set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${SUPERTUX_VERSION_STRING}-${CMAKE_SYSTEM_NAME}")
+set(SUPERTUX_SYSTEM_NAME "${CMAKE_SYSTEM_NAME}")
+if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+  set(SUPERTUX_SYSTEM_NAME "win64")
+else()
+  set(SUPERTUX_SYSTEM_NAME "win32")
+endif()
+
+set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${SUPERTUX_VERSION_STRING}-${SUPERTUX_SYSTEM_NAME}")
 set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${SUPERTUX_VERSION_STRING}-Source")
 set(CPACK_PACKAGE_INSTALL_DIRECTORY "SuperTux")
 set(CPACK_PACKAGE_EXECUTABLES "supertux2" "SuperTux")