#!/usr/bin/perl

#

# Created: Thu Aug 15 11:57:33 1996 too

# Last modified: Mon Dec 27 09:23:56 1999 too

#

# Copyright (c) 1996-1999 Tomi Ollila.  All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

# 1. Redistributions of source code must retain the above copyright

#    notice, this list of conditions and the following disclaimer.

# 2. Redistributions in binary form must reproduce the above copyright

#    notice, this list of conditions and the following disclaimer in the

#    documentation and/or other materials provided with the distribution.

# 

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO

# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;

# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

die "Usage: mkdep CPP-command [CPP options] file1 [file2...]\n"

  if ($#ARGV < 1);

$cmdl = shift(@ARGV);

$cmdl = "$cmdl " . shift (@ARGV) while ($ARGV[0] =~ /^-[A-Z]/);

while ($file = shift(@ARGV))

{

    $file =~ s/\.o$/.c/;

    open(F, "$cmdl $file|");

    &parseout;

    close(F);

}

sub initinit

{

    %used = ();

    $of = $file;

    $of =~ s/\.c$/.lo/;

    $str = "$of:\t$file";

    $len = length $str;

}

sub initstr

{

    $str = "\t";

    $len = length $str;

}

sub parseout

{

    &initinit;

    while (<F>)

    {

        s/\\\\/\//g;

	next unless (/^# [0-9]* "(.*\.h)"/);

	next if ($1 =~ /^\//);

	next if $used{$1};

        $used{$1} = 1;

	$nlen = length($1) + 1;

	if ($len + $nlen > 72)

	{

	    print $str, "\\\n";

	    &initstr;

	    $str = $str . $1;

	}

	else { $str = $str . " " . $1; }

	$len += $nlen;	

    }

    print $str, "\n";

}