path: root/scripts/Makefile.clean
diff options
authorSam Ravnborg <sam@mars.(none)>2005-07-27 22:11:01 +0200
committerSam Ravnborg <sam@mars.(none)>2005-07-27 22:11:01 +0200
commitdb8c1a7b2ca25f37b1429c00e82d6568f86caec1 (patch)
tree346bee7ee9cc5929c897825c9a86cb303f945745 /scripts/Makefile.clean
parent72ba47c1b293ae78f7d798b458bb9d3db65c7551 (diff)
kbuild: fix building external modules
kbuild failed to locate Makefile for external modules. This brought to my attention how the variables for directories have different values in different usage scenarios. Different kbuild usage scenarios: make - plain make in same directory where kernel source lives make O= - kbuild is told to store output files in another directory make M= - building an external module make O= M= - building an external module with kernel output seperate from src Value assigned to the different variables: |$(src) |$(obj) |$(srctree) |$(objtree) make |reldir to k src |as src |abs path to k src |abs path to k src make O= |reldir to k src |as src |abs path to k src |abs path to output dir make M= |abs path to src |as src |abs path to k src |abs path to k src make O= M= |abs path to src |as src |abs path to k src |abs path to k output path to kbuild file: make | $(srctree)/$(src), $(src) make O= | $(srctree)/$(src) make M= | $(src) make O= M= | $(src) From the table above it can be seen that the only good way to find the home directory of the kbuild file is to locate the one of the two variants that is an absolute path. If $(src) is an absolute path (starts with /) then use it, otherwise prefix $(src) with $(srctree). Signed-off-by: Sam Ravnborg <>
Diffstat (limited to 'scripts/Makefile.clean')
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index 62351b630fab..8974ea5fc878 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -13,8 +13,8 @@ __clean:
clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
# The filename Kbuild has precedence over Makefile
-include $(if $(wildcard $(srctree)/$(src)/Kbuild), \
- $(srctree)/$(src)/Kbuild, $(srctree)/$(src)/Makefile)
+kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
+include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
# Figure out what we need to build from the various variables
# ==========================================================================