diff options
| author | Michal Marek <mmarek@suse.cz> | 2014-04-25 23:25:18 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2014-05-14 22:43:05 +0200 |
| commit | 9da0763bdd82572be243fcf5161734f11568960f (patch) | |
| tree | 96a4b40fc2b5dc6044687ff448963ea9ee8a66f1 /Makefile | |
| parent | 890676c65d699db3ad82e7dddd0cf8fb449031af (diff) | |
| download | lwn-9da0763bdd82572be243fcf5161734f11568960f.tar.gz lwn-9da0763bdd82572be243fcf5161734f11568960f.zip | |
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@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 12 |
1 files changed, 11 insertions, 1 deletions
@@ -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) |