If you try out-of-tree build with an unclean source tree, Kbuild suggests to run make mrproper. The path to the source tree may be shown with a relative path, for example, "make O=foo" emits the following: .. is not clean, please run 'make mrproper' in the '..' directory. This is somewhat confusing if you ran "make O=foo" in the source tree. Using the absolute path will be clearer. This commit changes the error message like follows: *** *** The source tree is not clean, please run 'make mrproper' *** in /absolute/path/to/linux *** Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> --- Makefile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index d9cbbc27d4ba..901fcb8fffbe 100644 --- a/Makefile +++ b/Makefile @@ -1121,8 +1121,10 @@ ifdef building_out_of_srctree $(Q)if [ -f $(srctree)/.config -o \ -d $(srctree)/include/config -o \ -d $(srctree)/arch/$(SRCARCH)/include/generated ]; then \ - echo >&2 " $(srctree) is not clean, please run 'make$(if $(findstring command line, $(origin ARCH)), ARCH=$(ARCH)) mrproper'"; \ - echo >&2 " in the '$(srctree)' directory.";\ + echo >&2 "***"; \ + echo >&2 "*** The source tree is not clean, please run 'make$(if $(findstring command line, $(origin ARCH)), ARCH=$(ARCH)) mrproper'"; \ + echo >&2 "*** in $(abs_srctree)";\ + echo >&2 "***"; \ /bin/false; \ fi; endif -- 2.17.1