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Date: Fri, 9 May 2014 14:52:24 +0200 From: Michal Marek <mmarek@...e.cz> To: linux-kbuild@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Sam Ravnborg <sam@...nborg.org> Subject: [PATCH v2 5/5] kbuild: Use relative path when building in a subdir of the source tree When doing make O=<subdir>, use '..' to refer to the source tree. This allows for more readable compiler messages, and, more importantly, it sets the VPATH to '..', so filenames in WARN_ON() etc. will be shorter. Acked-by: Sam Ravnborg <sam@...nborg.org> Signed-off-by: Michal Marek <mmarek@...e.cz> --- v1->v2: No changes Makefile | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 4da1c4b..9872c53 100644 --- a/Makefile +++ b/Makefile @@ -153,7 +153,17 @@ else _all: modules endif -srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),.) +ifeq ($(KBUILD_SRC),) + # building in the source tree + srctree := . +else + ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) + # building in a subdirectory of the source tree + srctree := .. + else + srctree := $(KBUILD_SRC) + endif +endif objtree := . src := $(srctree) obj := $(objtree) -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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