From: Masahiro Yamada Date: Mon, 24 Mar 2014 04:55:27 +0000 (+0900) Subject: kbuild: create a build directory automatically for out-of-tree build X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5a449d75bca1e8798571cb04093553593e5ed73e;p=project%2Fbcm63xx%2Fu-boot.git kbuild: create a build directory automatically for out-of-tree build Prior to Kbuild, the build system created a build directory, when it did not exist, for out-of-tree build. This feature was dropped when we switched to Kbuild because many of lines in makefiles were copied from Linux Kernel. (In Linux Kernel, we have to create a build directory by ourselves before starting build.) That feature seems worth reviving for less typing even if our code and Linux Kernel diverge. Signed-off-by: Masahiro Yamada Suggested-by: Simon Glass Acked-by: Simon Glass Tested-by: Simon Glass --- diff --git a/Makefile b/Makefile index e723218627..341f336ce5 100644 --- a/Makefile +++ b/Makefile @@ -124,7 +124,8 @@ 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))