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From: Glen Barber <gjb@FreeBSD.org>
Date: Wed, 23 Nov 2011 12:23:32 +0000 (UTC)
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Subject: svn commit: r227879 - stable/9
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Author: gjb (doc committer)
Date: Wed Nov 23 12:23:32 2011
New Revision: 227879
URL: http://svn.freebsd.org/changeset/base/227879

Log:
  MFC r227769, 227770, 227771:
  
  - Add a note to src/Makefile that explains that 'rm' runs twice because
    thesecond invocation only needs to operate on files with the immutable
    flag set.
  
  - Fix the note in r227769 to be less specific to the immutable flag.
  
  - Replace 'chflags' with 'file flags' in a comment, since 'chflags'is a
    command, not a flag itself.
  
  Approved by:		re (kib)

Modified:
  stable/9/Makefile   (contents, props changed)

Modified: stable/9/Makefile
==============================================================================
--- stable/9/Makefile	Wed Nov 23 12:05:39 2011	(r227878)
+++ stable/9/Makefile	Wed Nov 23 12:23:32 2011	(r227879)
@@ -182,10 +182,12 @@ buildworld: upgrade_checks
 #
 # In the following, the first 'rm' in a series will usually remove all
 # files and directories.  If it does not, then there are probably some
-# files with chflags set, so this unsets them and tries the 'rm' a
+# files with file flags set, so this unsets them and tries the 'rm' a
 # second time.  There are situations where this target will be cleaning
 # some directories via more than one method, but that duplication is
-# needed to correctly handle all the possible situations.
+# needed to correctly handle all the possible situations.  Removing all
+# files without file flags set in the first 'rm' instance saves time,
+# because 'chflags' will need to operate on fewer files afterwards.
 #
 BW_CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
 cleanworld: