freebsd-dev/crypto/openssl/util/clean-depend.pl

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Perl
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#!/usr/local/bin/perl -w
# Clean the dependency list in a makefile of standard includes...
# Written by Ben Laurie <ben@algroup.co.uk> 19 Jan 1999
use strict;
while(<STDIN>) {
print;
last if /^# DO NOT DELETE THIS LINE/;
}
my %files;
my $thisfile="";
while(<STDIN>) {
my ($dummy, $file,$deps)=/^((.*):)? (.*)$/;
my $origfile="";
$thisfile=$file if defined $file;
next if !defined $deps;
$origfile=$thisfile;
$origfile=~s/\.o$/.c/;
my @deps=split ' ',$deps;
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@deps=grep(!/^\//,@deps);
@deps=grep(!/^\\$/,@deps);
@deps=grep(!/^$origfile$/,@deps);
# pull out the kludged kerberos header (if present).
@deps=grep(!/^[.\/]+\/krb5.h/,@deps);
push @{$files{$thisfile}},@deps;
}
my $file;
foreach $file (sort keys %files) {
my $len=0;
my $dep;
my $origfile=$file;
$origfile=~s/\.o$/.c/;
$file=~s/^\.\///;
push @{$files{$file}},$origfile;
my $prevdep="";
foreach $dep (sort @{$files{$file}}) {
$dep=~s/^\.\///;
next if $prevdep eq $dep; # to exterminate duplicates...
$prevdep = $dep;
$len=0 if $len+length($dep)+1 >= 80;
if($len == 0) {
print "\n$file:";
$len=length($file)+1;
}
print " $dep";
$len+=length($dep)+1;
}
}
print "\n";