> Because ".config" isn't valid, you need to have $(objdir)/.config be > checked, and in turn that has to depend on the appropriate target (we > have some stage that says that we are configured, I forget which).
``` make clean && make mrproper make *** *** Configuration file ".config" not found! *** *** Please run some configurator (e.g. "make oldconfig" or *** "make menuconfig" or "make xconfig"). *** make: *** No rule to make target '.config', needed by 'include/config/auto.conf'. Stop. ``` Still not getting this, sorry a bit. > > > spin with "make O=/tmp/somedir". It also looks like it's going to impact > > > every board, and either fail or add some build time? Make sure both say > > > "sandbox" and "qemu_arm" both build at least, if not a full CI run. > > > > For build time -> There could be 4 line of code to check. > > I do forget off-hand which methods of doing "something" in a Makefile > are cheap and which result in firing off a subshell. But for a handy > feature for one SoC I want to make sure we don't slow down say the world > build of all 1400 configurations. For a maybe useful example, see how > the "checkgcc6" target is handled, and maybe we can move all of this to > live under arch/arm/mach-socfpga/config.mk and so only get invoked at > all there. If config.mk can also do this job why not just move it. Brian
