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trace: rebuild generated-events.o when configuration changes 

Make sure to rebuild generated-events.o when ./configure options change.
This prevents linker errors when a stale generated-events.o gets linked
with code compiled against fresh headers.  For example, try building
with ./configure --enable-trace-backend=stderr followed by ./configure
--enable-trace-backend=dtrace.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2013-03-08 15:52:15 +01:00
parent c6f18b9195
commit a7373b1f61
1 changed files with 1 additions and 1 deletions
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2
trace/Makefile.objs
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@ -11,7 +11,7 @@ $(obj)/generated-events.h-timestamp: $(SRC_PATH)/trace-events
< $< > $@," GEN $(patsubst %-timestamp,%,$@)") < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
@cmp -s $@ $(patsubst %-timestamp,%,$@) || cp $@ $(patsubst %-timestamp,%,$@) @cmp -s $@ $(patsubst %-timestamp,%,$@) || cp $@ $(patsubst %-timestamp,%,$@)
$(obj)/generated-events.c: $(obj)/generated-events.c-timestamp $(obj)/generated-events.c: $(obj)/generated-events.c-timestamp $(BUILD_DIR)/config-host.mak
$(obj)/generated-events.c-timestamp: $(SRC_PATH)/trace-events $(obj)/generated-events.c-timestamp: $(SRC_PATH)/trace-events
$(call quiet-command,$(TRACETOOL) \ $(call quiet-command,$(TRACETOOL) \
--format=events-c \ --format=events-c \