===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/pkg-config/pkg-config,v
retrieving revision 1.43
retrieving revision 1.44
diff -c -r1.43 -r1.44
*** src/usr.bin/pkg-config/pkg-config	2011/05/18 11:12:13	1.43
--- src/usr.bin/pkg-config/pkg-config	2011/05/25 12:16:34	1.44
***************
*** 1,5 ****
  #!/usr/bin/perl
! # $OpenBSD: pkg-config,v 1.43 2011/05/18 11:12:13 jasper Exp $
  # $CSK: pkgconfig.pl,v 1.39 2006/11/27 16:26:20 ckuethe Exp $
  
  # Copyright (c) 2006 Chris Kuethe <ckuethe@openbsd.org>
--- 1,5 ----
  #!/usr/bin/perl
! # $OpenBSD: pkg-config,v 1.44 2011/05/25 12:16:34 jasper Exp $
  # $CSK: pkgconfig.pl,v 1.39 2006/11/27 16:26:20 ckuethe Exp $
  
  # Copyright (c) 2006 Chris Kuethe <ckuethe@openbsd.org>
***************
*** 21,26 ****
--- 21,27 ----
  use warnings;
  use Getopt::Long;
  use File::Basename;
+ use Memoize;
  use OpenBSD::PkgConfig;
  
  my @PKGPATH = qw(/usr/lib/pkgconfig /usr/local/lib/pkgconfig /usr/X11R6/lib/pkgconfig);
***************
*** 103,108 ****
--- 104,115 ----
  		'variable=s' => \$mode{variable},
  		'define-variable=s' => $variables,
  	);
+ 
+ # handle_config() is not a slow routine per se, but we spend
+ # a lot of time in it, so cache the return values. The most gain
+ # is from configure scripts/build commands which query several modules
+ # at the same time.
+ memoize('handle_config');
  
  # Initial value of printerr depends on the options...
  if (!defined $mode{printerr}) {