linux-old/scripts/checkincludes.pl
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   1#!/usr/bin/perl
   2#
   3# checkincludes: Find files included more than once in (other) files.
   4# Copyright abandoned, 2000, Niels Kristian Bech Jensen <nkbj@image.dk>.
   5
   6foreach $file (@ARGV) {
   7        open(FILE, $file) or die "Cannot open $file: $!.\n";
   8
   9        my %includedfiles = ();
  10
  11        while (<FILE>) {
  12                if (m/^\s*#\s*include\s*[<"](\S*)[>"]/o) {
  13                        ++$includedfiles{$1};
  14                }
  15        }
  16        
  17        foreach $filename (keys %includedfiles) {
  18                if ($includedfiles{$filename} > 1) {
  19                        print "$file: $filename is included more than once.\n";
  20                }
  21        }
  22
  23        close(FILE);
  24}
  25
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