From mboxrd@z Thu Jan 1 00:00:00 1970 From: wbin00@gmail.com (Bin Wang) Date: Thu, 17 Jan 2013 10:26:29 +0800 Subject: When does Makefile init the variables like KBUILD_OUTPUT Message-ID: <50F76155.3000506@gmail.com> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Hi, all The kernel Makefile init the variables like KBUILD_OUTPUT outside any target's make process. But when I try to output the KBUILD_OUTPUT in the target's make process, for example, the target "help", I find it is not defined. I want to know when will it init? Thanks a lot. Bin Wang