Makefile: Update unmodified config-devices.mak automatically

This makes rebuilds after source updates easier
for most users (who don't edit config-devices.mak).

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Stefan Weil 2009-12-20 15:39:03 +01:00 committed by Anthony Liguori
parent 076d247142
commit 012f087923

View File

@ -43,11 +43,21 @@ config-all-devices.mak: $(SUBDIR_DEVICES_MAK)
%/config-devices.mak: default-configs/%.mak %/config-devices.mak: default-configs/%.mak
$(call quiet-command,cat $< > $@.tmp, " GEN $@") $(call quiet-command,cat $< > $@.tmp, " GEN $@")
@if test -f $@; then \ @if test -f $@; then \
if cmp -s $@.old $@ || cmp -s $@ $@.tmp; then \
mv $@.tmp $@; \
cp -p $@ $@.old; \
else \
if test -f $@.old; then \
echo "WARNING: $@ (user modified) out of date.";\
else \
echo "WARNING: $@ out of date.";\ echo "WARNING: $@ out of date.";\
fi; \
echo "Run \"make defconfig\" to regenerate."; \ echo "Run \"make defconfig\" to regenerate."; \
rm $@.tmp; \ rm $@.tmp; \
fi; \
else \ else \
mv $@.tmp $@; \ mv $@.tmp $@; \
cp -p $@ $@.old; \
fi fi
defconfig: defconfig: