diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 20 |
1 files changed, 13 insertions, 7 deletions
@@ -43,9 +43,11 @@ config-all-devices.mak: $(SUBDIR_DEVICES_MAK) %/config-devices.mak: default-configs/%.mak $(call quiet-command,cat $< > $@.tmp, " GEN $@") @if test -f $@; then \ - if cmp -s $@.old $@ || cmp -s $@ $@.tmp; then \ - mv $@.tmp $@; \ - cp -p $@ $@.old; \ + if cmp -s $@.old $@; then \ + if ! cmp -s $@ $@.tmp; then \ + mv $@.tmp $@; \ + cp -p $@ $@.old; \ + fi; \ else \ if test -f $@.old; then \ echo "WARNING: $@ (user modified) out of date.";\ @@ -104,11 +106,15 @@ ui/vnc.o: QEMU_CFLAGS += $(VNC_TLS_CFLAGS) bt-host.o: QEMU_CFLAGS += $(BLUEZ_CFLAGS) -trace.h: $(SRC_PATH)/trace-events config-host.mak - $(call quiet-command,sh $(SRC_PATH)/tracetool --$(TRACE_BACKEND) -h < $< > $@," GEN $@") +trace.h: trace.h-timestamp +trace.h-timestamp: $(SRC_PATH)/trace-events config-host.mak + $(call quiet-command,sh $(SRC_PATH)/tracetool --$(TRACE_BACKEND) -h < $< > $@," GEN trace.h") + @cmp -s $@ trace.h || cp $@ trace.h -trace.c: $(SRC_PATH)/trace-events config-host.mak - $(call quiet-command,sh $(SRC_PATH)/tracetool --$(TRACE_BACKEND) -c < $< > $@," GEN $@") +trace.c: trace.c-timestamp +trace.c-timestamp: $(SRC_PATH)/trace-events config-host.mak + $(call quiet-command,sh $(SRC_PATH)/tracetool --$(TRACE_BACKEND) -c < $< > $@," GEN trace.c") + @cmp -s $@ trace.c || cp $@ trace.c trace.o: trace.c $(GENERATED_HEADERS) |