GNU bug report logs - #10697
subdir-objects "make clean" invokes one rm for each .o file

Previous Next

Full log

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Jim Meyering <jim <at> meyering.net>
To: bug-automake <at> gnu.org
Subject: subdir-objects "make clean" invokes one rm for each .o file
Date: Thu, 02 Feb 2012 17:06:17 +0100

In cppi (http://git.savannah.gnu.org/cgit/cppi.git), I am now using non-
recursive make via subdir-objects, modeled after the way bison does it.
I see that "make clean" is inefficient: one "rm -f" per .o file:

  rm -fr *.o
  rm -f *.o
  rm -f lib/calloc.o
  rm -f lib/close-stream.o
  rm -f lib/closeout.o
  rm -f lib/error.o
  rm -f lib/exitfail.o
  rm -f lib/fpending.o
  rm -f lib/getopt.o
  rm -f lib/getopt1.o
  rm -f lib/localcharset.o
  rm -f lib/malloc.o
  rm -f lib/mbrtowc.o
  rm -f lib/mbsinit.o
  rm -f lib/msvc-inval.o
  rm -f lib/msvc-nothrow.o
  rm -f lib/obstack.o
  rm -f lib/progname.o
  rm -f lib/quote.o
  rm -f lib/quotearg.o
  rm -f lib/realloc.o
  rm -f lib/stpcpy.o
  rm -f lib/strerror-override.o
  rm -f lib/strerror.o
  rm -f lib/version-etc-fsf.o
  rm -f lib/version-etc.o
  rm -f lib/xalloc-die.o
  rm -f lib/xmalloc.o
  rm -f lib/xstrtol-error.o
  rm -f lib/xstrtol.o
  rm -f lib/xstrtoul.o
  rm -f src/cppi.o

cppi has so few .o files that it's not a problem, but with hundreds
(coreutils has over 600), it could be noticeable.

Contrast that with its removal of *.o above and of all tests/*.log files
using just one rm invocation each, I think it must simply be an oversight.
Seems like it'd be worth fixing some day.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.