From 9da0763bdd82572be243fcf5161734f11568960f Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Fri, 25 Apr 2014 23:25:18 +0200 Subject: [PATCH] kbuild: Use relative path when building in a subdir of the source tree When doing make O=, 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 Signed-off-by: Michal Marek --- Makefile | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 3e134ec..f4702c1 100644 --- a/Makefile +++ b/Makefile @@ -149,7 +149,17 @@ 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) -- 2.7.4