build/mkdep.perl

   1 #!/usr/bin/perl
   2 #
   3 # $Id$
   4 #
   5 # Created: Thu Aug 15 11:57:33 1996 too
   6 # Last modified: Mon Dec 27 09:23:56 1999 too
   7 #
   8 # Copyright (c) 1996-1999 Tomi Ollila.  All rights reserved.
   9 #
  10 # Redistribution and use in source and binary forms, with or without
  11 # modification, are permitted provided that the following conditions
  12 # are met:
  13 # 1. Redistributions of source code must retain the above copyright
  14 #    notice, this list of conditions and the following disclaimer.
  15 # 2. Redistributions in binary form must reproduce the above copyright
  16 #    notice, this list of conditions and the following disclaimer in the
  17 #    documentation and/or other materials provided with the distribution.
  18 #
  19 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21 # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
  22 # EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  24 # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  25 # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  26 # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  27 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  28 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29
  30 die "Usage: mkdep CPP-command [CPP options] file1 [file2...]\n"
  31   if ($#ARGV < 1);
  32
  33 $cmdl = shift(@ARGV);
  34
  35 $cmdl = "$cmdl " . shift (@ARGV) while ($ARGV[0] =~ /^-[A-Z]/);
  36
  37 while ($file = shift(@ARGV))
  38 {
  39     $file =~ s/\.o$/.c/;
  40
  41     open(F, "$cmdl $file|");
  42
  43     &parseout;
  44
  45     close(F);
  46 }
  47
  48
  49 sub initinit
  50 {
  51     %used = ();
  52     $of = $file;
  53     $of =~ s/\.c$/.lo/;
  54     $str = "$of:\t$file";
  55     $len = length $str;
  56 }
  57
  58 sub initstr
  59 {
  60     $str = "\t";
  61     $len = length $str;
  62 }
  63
  64 sub parseout
  65 {
  66     &initinit;
  67     while (<F>)
  68     {
  69         s/\\\\/\//g;
  70         next unless (/^# [0-9]* "(.*\.h)"/);
  71
  72         next if ($1 =~ /^\//);
  73
  74         next if $used{$1};
  75
  76         $used{$1} = 1;
  77
  78         $nlen = length($1) + 1;
  79
  80         if ($len + $nlen > 72)
  81         {
  82             print $str, "\\\n";
  83             &initstr;
  84             $str = $str . $1;
  85         }
  86         else { $str = $str . " " . $1; }
  87
  88         $len += $nlen;
  89
  90     }
  91     print $str, "\n";
  92 }