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33 lines
561 B
Perl
33 lines
561 B
Perl
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#!/usr/bin/perl
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# Script that reads in configure and outputs the names of all the defines
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# it defines that are used nowhere in the code
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# Arguments: C and H files
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my %defined,%used,%files;
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$in = shift;
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while($tmp = shift) {
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$files{$tmp} = $tmp;
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open(FI, $tmp);
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while(<FI>) {
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$line = $_;
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$cur = "";
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if(/^#define ([A-Za-z0-9_]+)/) {
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$defined{$1} = $tmp;
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$cur = $1;
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}
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$_ = $line;
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while(/([A-Za-z0-9_]+)/sgm) {
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if($cur cmp $1) { $used{$1} = $tmp; }
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}
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}
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close FI;
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}
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foreach(keys %defined) {
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if(!$used{$_}) { print "$_\n"; }
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}
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