root/src/scripts/noit-config.in

#!/usr/bin/perl

use strict;
my %opts;
my $worked = 0;

while(<DATA>) {
  chomp;
  my ($o, $v) = split /=/, $_, 2;
  $v =~ s#-I\$\(top_srcdir\)/src#-I\${includedir}#g;
  $opts{$o} = $v;
}

sub help {
  print STDERR "help:\n";
  for my $o (keys %opts) {
    $o =~ s/_/-/g;
    print STDERR "\t--$o\n";
  }
  return 1;
}

sub interp {
  my $o = shift;
  my $v = $o;
  $v =~ s#\$\{([^\}]+)\}#$opts{$1}#eg;
  return $v if $o eq $v;
  return interp($v);
}

foreach my $v (@ARGV) {
  if($v eq '-h' || $v eq '--help') {
    help && exit;
  }
  (my $o = $v) =~ s/^--//;
  die "Bad option: $v" if "--$o" ne $v;
  $o =~ s/-/_/g;
  die "No such option: $o" unless exists $opts{$o};
  print interp($opts{$o});
  $worked = 1;
}

unless ($worked) {
  help && exit;
}

__END__
cc=@CC@
cppflags=@CPPFLAGS@
cflags=@CFLAGS@
ldflags=@LDFLAGS@
libs=@LIBS@
prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@
sbindir=@sbindir@
libdir=@libdir@
includedir=${prefix}/include
libexecdir=@libexecdir@
datarootdir=@datarootdir@
mandir=@mandir@
mansubdir=@mansubdir@
docdir=${prefix}/@docdir@
sysconfdir=@sysconfdir@
srcdir=@srcdir@
top_srcdir=@top_srcdir@
shld=@SHLD@
shcflags=@SHCFLAGS@
moduleld=@MODULELD@
modules_dir=@MODULES_DIR@
moduleext=@MODULEEXT@