tools selftests: Fix 'clean' target with make 3.81

commit 60df4642a83546fa6ea8286f5094ce8c0906c3ec upstream.

Make 3.81 doesn't have the 'undefine' command. Using undefine
to clear LDFLAGS fails when make version 3.81 is used. Fix it
to use override to clear LDFLAGS.

Tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: http://lkml.kernel.org/r/20150514151225.GH23588@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 0db571340edbd94a7042a63f517f410b42c127d7..3409a5376eb047cc3b0d328060e4ac019f1406e6 100644 (file)
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -26,7 +26,7 @@ TARGETS_HOTPLUG += memory-hotplug
 # Makefile to avoid test build failures when test
 # Makefile doesn't have explicit build rules.
 ifeq (1,$(MAKELEVEL))
-undefine LDFLAGS
+override LDFLAGS =
 override MAKEFLAGS =
 endif