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From: Tony Finch <fanf@FreeBSD.org>
Date: Thu, 26 Nov 2009 19:08:33 +0000 (UTC)
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Subject: cvs commit: src/usr.bin/unifdef unifdefall.sh
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fanf        2009-11-26 19:08:33 UTC

  FreeBSD src repository

  Modified files:
    usr.bin/unifdef      unifdefall.sh 
  Log:
  SVN rev 199842 on 2009-11-26 19:08:33Z by fanf
  
  unifdefall: optimise the loop that builds the unifdef command.
  
  The old code used a shell loop to convert each controlling macro
  definition into a command-line argument, reading the macro definitions
  file each time. The new code converts the list of controlling macros
  into a sed script which can run through the list of macro definitions
  in one go.
  
  Add some explanatory comments, since the code is quite meta.
  
  Use {} instead of () for redirecting a group of commands.
  
  Submitted by: Jonathan Nieder <jrnieder@gmail.com>
  
  Revision  Changes    Path
  1.5       +17 -9     src/usr.bin/unifdef/unifdefall.sh