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