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kbuild: fix silentoldconfig recursion

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kconfig-fix-config-dependencies causes this:

make CC=cc  KBUILD_VERBOSE=1 -C /usr/src/25 SUBDIRS=/home/akpm/NVIDIA-Linux-x86_64-1.0-8762-pkg2/usr/src/nv modules
make -f /usr/src/devel/Makefile silentoldconfig
make -f /usr/src/devel/Makefile silentoldconfig
make -f /usr/src/devel/Makefile silentoldconfig

The basic problem is if we compile external modules, config-targets isn't
set which can cause recursive calls to silentoldconfig to update the
kernel configuration.

Bail out and ask the user to update manually.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Roman Zippel 2006-06-18 21:09:09 -07:00 committed by Sam Ravnborg
parent ac031f26e8
commit 3041e47e8b
1 changed files with 4 additions and 0 deletions
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4
Makefile
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@ -446,7 +446,11 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
# if auto.conf.cmd is missing then we are probarly in a cleaned tree so
# we execute the config step to be sure to catch updated Kconfig files
include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
ifeq ($(KBUILD_EXTMOD),)
$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
else
$(error kernel configuration not valid - run 'make prepare' in $(srctree) to update it)
endif
else
# Dummy target needed, because used as prerequisite