On Mon, Mar 31, 2014 at 04:41:36PM +0900, Masahiro Yamada wrote: > Kbuild supports saving output files in a separate directory. > But the build directory must be created beforehand. For example, > > $ mkdir -p dir/to/store/output/files > $ make O=dir/to/store/output/files defconfig > > Creating a build directory automatically would be useful. > > Signed-off-by: Masahiro Yamada <yamada.m@xxxxxxxxxxxxxxxx> > --- > Makefile | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/Makefile b/Makefile > index 575e1f8..35b5b7e 100644 > --- a/Makefile > +++ b/Makefile > @@ -120,9 +120,10 @@ ifneq ($(KBUILD_OUTPUT),) > # Invoke a second make in the output directory, passing relevant variables > # check that the output directory actually exists > saved-output := $(KBUILD_OUTPUT) > -KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) > +KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ > + && /bin/pwd) > $(if $(KBUILD_OUTPUT),, \ > - $(error output directory "$(saved-output)" does not exist)) > + $(error failed to create output directory "$(saved-output)")) > > PHONY += $(MAKECMDGOALS) sub-make Hi Masahiro. In the past I have rejected such patches - but today I fail to recall why. I did a very quick test-spin on this and worked nicely. So you get my: Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx> Sam -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
