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kbuild: Inform user to pass ARCH= for make mrproper only when necessary 

Since commit 3a475b2166 ("kbuild: Inform user to pass ARCH= for make
mrproper"), if you try out-of-tree build with an unclean source tree,
it suggests to run 'make ARCH=<ARCH> mrproper'.

This looks odd when you are not cross-compiling the kernel. Show the
'ARCH=<ARCH>' part only when ARCH= was given from the command line.
If ARCH is the default (native build) or came from the environment,
it should simply suggest 'make mrproper' as before.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2019-08-22 13:46:09 +09:00
parent 59747fb869
commit 621da4ba0e
1 changed files with 1 additions and 1 deletions
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Makefile
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@ -1118,7 +1118,7 @@ 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 " $(srctree) is not clean, please run 'make ARCH=$(ARCH) mrproper'"; \
echo >&2 " $(srctree) is not clean, please run 'make$(if $(findstring command line, $(origin ARCH)), ARCH=$(ARCH)) mrproper'"; \
echo >&2 " in the '$(srctree)' directory.";\
/bin/false; \
fi;