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build: Don't trash the .config file when src/Kconfig changes. 

Revision 5325e91e introduced a change to force the rebuild of the
.config file when the src/Kconfig (or vgasrc/Kconfig) file changes.
However, this was causing a complete rebuild of the user's .config
file which would throw away the user's current settings.

On a rebuild, use the kbuild olddefconfig rule instead of defconfig to
attempt to keep the user's current settings.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2013-12-23 13:44:59 -05:00
parent 96917a8ed7
commit 95b3d3286f
1 changed files with 1 additions and 1 deletions
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Makefile
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@ -260,7 +260,7 @@ $(Q)$(MAKE) -C $(OUT) -f $(CURDIR)/scripts/kconfig/Makefile srctree=$(CURDIR) sr
endef
$(OUT)autoconf.h : $(KCONFIG_CONFIG) ; $(call do-kconfig, silentoldconfig)
$(KCONFIG_CONFIG): src/Kconfig vgasrc/Kconfig ; $(call do-kconfig, defconfig)
$(KCONFIG_CONFIG): src/Kconfig vgasrc/Kconfig ; $(call do-kconfig, olddefconfig)
%onfig: ; $(call do-kconfig, $@)
help: ; $(call do-kconfig, $@)