[Emacs-diffs] master 74ab488: Check exit statuses in lib-src/Makefile

[Eli Zaretskii]

   mostlyclean:
  -     -rm -f core *.o *.res
  +     rm -f core *.o *.res

   clean: mostlyclean
  -     -rm -f ${EXE_FILES}
  +     rm -f ${EXE_FILES}

   distclean: clean
  -     -rm -f TAGS
  -     -rm -f Makefile blessmail
  +     rm -f TAGS Makefile blessmail

   bootstrap-clean maintainer-clean: distclean
  -     true

   extraclean: maintainer-clean
  -     -rm -f *~ \#*
  +     rm -f *~ \#*


Why should the "*clean*" targets fail when "rm -f" returns a non-zero
exit status?  What are the advantages?