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| author | Stefan Weil <weil@mail.berlios.de> | 2009-12-20 15:39:03 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-01-08 09:58:40 -0600 |
| commit | 012f0879234b07ec6a35eb6ec3c9d19000643155 (patch) | |
| tree | 4756f14a66ba411fd096b18f51c96048fddff77d | |
| parent | 076d247142c1ff1e4d618557fc0acc62f6eb2a7c (diff) | |
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>
| -rw-r--r-- | Makefile | 20 |
1 files changed, 15 insertions, 5 deletions
@@ -42,12 +42,22 @@ config-all-devices.mak: $(SUBDIR_DEVICES_MAK) %/config-devices.mak: default-configs/%.mak $(call quiet-command,cat $< > $@.tmp, " GEN $@") - @if test -f $@ ; then \ - echo "WARNING: $@ out of date." ;\ - echo "Run \"make defconfig\" to regenerate." ; \ - rm $@.tmp ; \ + @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then \ + mv $@.tmp $@; \ + cp -p $@ $@.old; \ + else \ + if test -f $@.old; then \ + echo "WARNING: $@ (user modified) out of date.";\ + else \ + echo "WARNING: $@ out of date.";\ + fi; \ + echo "Run \"make defconfig\" to regenerate."; \ + rm $@.tmp; \ + fi; \ else \ - mv $@.tmp $@ ; \ + mv $@.tmp $@; \ + cp -p $@ $@.old; \ fi defconfig: |