rev.12827 only works for in-tree builds.
# The cf_gen_defines.cci is auto-generated and does not exist when the
# dependencies computed. We need to add its include files (autoconf.h) here
-cf_gen_defines.cci: $(srcdir)/cf_gen_defines $(srcdir)/cf.data.pre $(srcdir)/../include/autoconf.h
+cf_gen_defines.cci: $(srcdir)/cf_gen_defines $(srcdir)/cf.data.pre $(top_builddir)/include/autoconf.h
$(AWK) -f $(srcdir)/cf_gen_defines <$(srcdir)/cf.data.pre >$@ || ($(RM) -f $@ && exit 1)