[ECOS] Makefile rule and dependencies problem

Fabrice Gautier Fabrice_Gautier@sdesigns.com
Tue Aug 22 11:29:00 GMT 2000


Hi,

the default target for source file in the eCos Makefiles is something like:

%.o.d : %.c
	@mkdir -p $(dir $@)
	$(CC) -c $(INCLUDE_PATH) -I$(dir $<) $(CFLAGS)
-Wp,-MD,$(@:.o.d=.tmp) -o $(dir $@)$(OBJECT_PREFIX)_$(notdir $(@:.o.d=.o))
$<
	@echo $@ ':' $< '\' > $@
	@tail +2 $(@:.o.d=.tmp) >> $@
	@echo >> $@
	@rm $(@:.o.d=.tmp)

Unfortunately, the two following lines:

	@echo $@ ':' $< '\' > $@
	@tail +2 $(@:.o.d=.tmp) >> $@

assume that the first dependency line generated by gcc contains only one the
.c file dependency. So it would work for something like:

file.o : file.c \
	file1.h \
	file2.h

but not if the generated depends is like:

file.o : file.c file1.h file2.h


Don't know how to correct that however.

Thanks

-- 
Fabrice Gautier
fabrice_gautier@sdesigns.com 






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