[PATCH v2 4/5] kbuild: Use relative path when building in the source tree

[Michal Marek]

When not using O=, $(srctree) refers to the same directory as
$(objtree), so we can set it to '.' as well. This makes the default
include path more compact and results in more readable messages from the
compiler. The only case where we need the absolute path is when creating
the 'source' symlink in /lib/modules.

Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Signed-off-by: Michal Marek <mmarek@xxxxxxx>
---
v1->v2: Fix the 'source' symlink

 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 480503a..4da1c4b 100644
--- a/Makefile
+++ b/Makefile
@@ -153,7 +153,7 @@ else
 _all: modules
 endif
 
-srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
+srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),.)
 objtree		:= .
 src		:= $(srctree)
 obj		:= $(objtree)
@@ -1054,7 +1054,7 @@ _modinst_:
 	@rm -rf $(MODLIB)/kernel
 	@rm -f $(MODLIB)/source
 	@mkdir -p $(MODLIB)/kernel
-	@ln -s $(srctree) $(MODLIB)/source
+	@ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source
 	@if [ ! $(objtree) -ef  $(MODLIB)/build ]; then \
 		rm -f $(MODLIB)/build ; \
 		ln -s $(CURDIR) $(MODLIB)/build ; \
-- 
1.8.4.5

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