On 2015/9/24 9:46, Michael Ellerman wrote: > On Wed, 2015-09-23 at 09:40 +0000, Wang Long wrote: >> Use make's built-in rules to when delete a file >> or delete files. > > It's not a built-in rule, it's a variable. Sorry,I did not describe clearly. It is a variable used as name of program in built-in rules. > > Personally I think using rm directly is clearer, but I guess this is fine. Do > you actually want to override $RM ? > So far, I do not want to override $(RM). But I found that some test's Makefile using *$(RM)* while the other's using *rm -f*, I think it is better to use one of them in all unit tests. Do you think which one is better? Best Regards Wang Long > cheers > > > > . > -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html