# that even if we are interrupted, the file is still available for
# diff in the next run. Note that $@ might not exist yet.
$(AM_V_GEN){ test ! -f $@ || cat $@; } >$@~
# that even if we are interrupted, the file is still available for
# diff in the next run. Note that $@ might not exist yet.
$(AM_V_GEN){ test ! -f $@ || cat $@; } >$@~