--- zzzz-none-000/linux-3.10.107/Documentation/networking/timestamping/Makefile	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/networking/timestamping/Makefile	2021-02-04 17:41:59.000000000 +0000
@@ -1,13 +1,14 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
+# To compile, from the source root
+#
+#    make headers_install
+#    make M=documentation
 
 # List of programs to build
-hostprogs-y := timestamping
+hostprogs-y := hwtstamp_config timestamping txtimestamp
 
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
 
 HOSTCFLAGS_timestamping.o += -I$(objtree)/usr/include
-
-clean:
-	rm -f timestamping
+HOSTCFLAGS_txtimestamp.o += -I$(objtree)/usr/include
+HOSTCFLAGS_hwtstamp_config.o += -I$(objtree)/usr/include