[PATCH 4/8] selftests: gpio: override clean in lib.mk to fix warnings

[Shuah Khan]

On 04/21/2017 11:40 PM, Michael Ellerman wrote:
> Shuah Khan <shuahkh at osg.samsung.com> writes:
> 
>> Add override for lib.mk clean to fix the following warnings from clean
>> target run.
>>
>> Makefile:11: warning: overriding recipe for target 'clean'
>> ../lib.mk:55: warning: ignoring old recipe for target 'clean'
>>
>> Signed-off-by: Shuah Khan <shuahkh at osg.samsung.com>
>> ---
>>  tools/testing/selftests/gpio/Makefile | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
>> index 205e4d1..4f6d9e0 100644
>> --- a/tools/testing/selftests/gpio/Makefile
>> +++ b/tools/testing/selftests/gpio/Makefile
>> @@ -7,8 +7,9 @@ include ../lib.mk
>>  
>>  all: $(BINARIES)
>>  
>> -clean:
>> +override define CLEAN
>>  	$(RM) $(BINARIES)
>> +endef
> 
> This could be achieved more simply with:
> 
> EXTRA_CLEAN := $(BINARIES)
> 

gpio clean requires special handling. I have one more patch
I sent out that handles that. So I am going to leave this
patch the way with override.

thanks,
-- Shuah