-SET_TARGET_PROPERTIES(${APP2EXT} PROPERTIES SOVERSION ${VERSION_MAJOR})
-SET_TARGET_PROPERTIES(${APP2EXT} PROPERTIES VERSION ${VERSION})
-SET_TARGET_PROPERTIES(${APP2EXT} PROPERTIES COMPILE_FLAGS ${CFLAGS} "-fPIC")
+SET_TARGET_PROPERTIES(${APP2EXT} PROPERTIES SOVERSION ${MAJORVER})
+SET_TARGET_PROPERTIES(${APP2EXT} PROPERTIES VERSION ${FULLVER})
+SET_TARGET_PROPERTIES(${APP2EXT} PROPERTIES COMPILE_FLAGS ${CFLAGS} "-fPIC -fstack-protector-strong")
+SET_TARGET_PROPERTIES(${APP2EXT} PROPERTIES LINK_FLAGS "-Wl,--as-needed,-z,relro")