When I run "make all" in elfutils twice, the second one starts rebuilding
elfutils/backends and things which depend on it.
Consequently, if I run "./configure; make; make install", then the "make
install" rebuilds elfutils/backends, because install depends on all.
I found the cause:
there is a rule
Because the *.o files are not mentoned in the Makefile, they are intermediate,
and thus get removed at the end.
During the first build, dependecy files are generated, and they mention all the
In the second build, these autogenerated dependencies are included by Makefile,
and the *.o files are no longer intermediate, do they are built and trigger the
rebuild of the rest.
The fis is to add
dummy-target-non-intermediate: $(i386_SRCS:.c=.o) ... $(s390_SRCS:.c=.o)
I'll generate a patch sometime the next week.
Fixed in the CVS, I used GNU make extensions, since I'm not the first one. ;-)
non-intermediate-objects: $(foreach m,$(modules),$($(m)_SRCS:.c=.o))