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1 #!/usr/bin/perl
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2 # -*- perl -*-
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3
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4 # Copyright (C) 2001, 2007
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5 # Free Software Foundation
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6 #
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7 # This file is part of the libiberty library.
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8 # Libiberty is free software; you can redistribute it and/or
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9 # modify it under the terms of the GNU Library General Public
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10 # License as published by the Free Software Foundation; either
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11 # version 2 of the License, or (at your option) any later version.
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12 #
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13 # Libiberty is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 # Library General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU Library General Public
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19 # License along with libiberty; see the file COPYING.LIB. If not,
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20 # write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
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21 # Boston, MA 02110-1301, USA.
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22 #
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23 # Originally written by DJ Delorie <dj@redhat.com>
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24
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25
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26 # This is a trivial script which checks the lists of C and O files in
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27 # the Makefile for consistency.
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28
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29 $mode = shift;
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30 $srcdir = ".";
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31
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32 if ($mode eq "-s") {
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33 $srcdir = shift;
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34 $mode = shift;
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35 }
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36
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37 &missing() if $mode eq "missing";
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38 &undoc() if $mode eq "undoc";
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39 &deps() if $mode eq "deps";
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40
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41 exit 0;
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42
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43 format STDOUT =
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44 ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~
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45 $out
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46 ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~~
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47 $out
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48 .
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49
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50 ######################################################################
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51
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52 sub missing {
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53
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54 opendir(S, $srcdir);
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55 while ($f = readdir S) {
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56 $have{$f} = 1;
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57 }
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58 closedir(S);
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59 opendir(S, ".");
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60 while ($f = readdir S) {
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61 $have{$f} = 1;
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62 }
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63 closedir(S);
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64
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65 for $a (@ARGV) {
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66 $listed{$a} = 1;
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67 $have{$a} = 0;
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68 }
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69
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70 for $f (sort keys %have) {
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71 next unless $have{$f};
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72 if ($f =~ /\.c$/) {
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73 print "S $f\n";
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74 }
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75 }
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76 for $f (sort keys %listed) {
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77 if ($f =~ /(.*)\.c$/) {
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78 $base = $1;
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79 if (! $listed{"$base.o"}) {
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80 print "O $f\n";
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81 }
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82 }
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83 }
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84 }
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85
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86 ######################################################################
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87
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88 sub undoc {
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89
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90 opendir(S, $srcdir);
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91 while ($file = readdir S) {
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92 if ($file =~ /\.texi$/) {
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93 open(T, "$srcdir/$file");
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94 while (<T>) {
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95 if (/^\@deftype[^\(]* ([^\s\(]+) *\(/) {
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96 $documented{$1} = 1;
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97 }
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98 }
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99 close(T);
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100 }
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101 if ($file =~ /\.c$/) {
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102 open(C, "$srcdir/$file");
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103 while (<C>) {
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104 if (/\@undocumented (\S+)/) {
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105 $documented{$1} = 1;
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106 }
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107 if (/^static /) {
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108 if (! /[\(;]/) {
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109 s/[\r\n]+$/ /;
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110 $_ .= <C>;
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111 }
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112 while ($_ =~ /\([^\)]*$/) {
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113 s/[\r\n]+$/ /;
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114 $_ .= <C>;
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115 }
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116 }
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117 s/ VPARAMS([ \(])/$1/;
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118 s/PREFIX\(([^\)]*)\)/byte_$1/;
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119 if (/^static [^\(]* ([^\s\(]+) *\(.*\)$/) {
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120 $documented{$1} = 1;
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121 }
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122 }
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123 }
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124 }
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125 closedir(D);
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126
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127 # $out = join(' ', sort keys %documented);
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128 # write;
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129 # print "\n";
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130
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131 system "etags $srcdir/*.c $srcdir/../include/*.h";
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132 open(TAGS, "TAGS");
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133 while (<TAGS>) {
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134 s/[\r\n]+$//;
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135 if (/^\014$/) {
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136 $filename = <TAGS>;
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137 $filename =~ s/[\r\n]+$//;
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138 $filename =~ s/,\d+$//;
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139 $filename =~ s@.*[/\\]@@;
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140 next;
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141 }
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142 if ($filename =~ /\.c$/ ) {
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143 next unless /^[_a-zA-Z]/;
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144 } else {
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145 next unless /^\# *define/;
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146 s/\# *define *//;
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147 }
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148
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149 s/ VPARAMS//;
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150 s/ *\177.*//;
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151 s/,$//;
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152 s/DEFUN\(//;
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153 s/\(//;
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154
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155 next if /^static /;
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156 next if /\s/;
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157 next if /^_/;
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158 next if $documented{$_};
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159 next if /_H_?$/;
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160
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161 if ($seen_in{$_} ne $filename) {
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162 $saw{$_} ++;
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163 }
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164 $seen_in{$_} = $filename;
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165 }
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166
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167 for $k (keys %saw) {
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168 delete $saw{$k} if $saw{$k} > 1;
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169 }
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170
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171 for $k (sort keys %saw) {
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172 $fromfile{$seen_in{$k}} .= " " if $fromfile{$seen_in{$k}};
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173 $fromfile{$seen_in{$k}} .= $k;
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174 }
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175
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176 for $f (sort keys %fromfile) {
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177 $out = "$f: $fromfile{$f}";
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178 write;
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179 }
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180 }
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181
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182 ######################################################################
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183
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184 sub deps_for {
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185 my($f) = @_;
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186 my(%d);
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187 open(F, $f);
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188 %d = ();
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189 while (<F>) {
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190 if (/^#\s*include\s+["<](.*)[">]/) {
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191 $d{$1} = 1;
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192 }
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193 }
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194 close(F);
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195 return keys %d;
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196 }
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197
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198 sub canonicalize {
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199 my ($p) = @_;
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200 0 while $p =~ s@/\./@/@g;
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201 0 while $p =~ s@^\./@@g;
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202 0 while $p =~ s@/[^/]+/\.\./@/@g;
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203 return $p;
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204 }
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205
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206 sub locals_first {
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207 my ($a,$b) = @_;
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208 return -1 if $a eq "config.h";
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209 return 1 if $b eq "config.h";
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210 return $a cmp $b;
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211 }
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212
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213 sub deps {
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214
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215 $crule = "\tif [ x\"\$(PICFLAG)\" != x ]; then \\\n";
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216 $crule .= "\t \$(COMPILE.c) \$(PICFLAG) \$< -o pic/\$@; \\\n";
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217 $crule .= "\telse true; fi\n";
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218 $crule .= "\t\$(COMPILE.c) \$< \$(OUTPUT_OPTION)\n";
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219 $crule .= "\n";
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220
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221 $incdir = shift @ARGV;
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222
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223 opendir(INC, $incdir);
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224 while ($f = readdir INC) {
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225 next unless $f =~ /\.h$/;
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226 $mine{$f} = "\$(INCDIR)/$f";
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227 $deps{$f} = join(' ', &deps_for("$incdir/$f"));
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228 }
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229 $mine{'config.h'} = "config.h";
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230
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231 opendir(INC, $srcdir);
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232 while ($f = readdir INC) {
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233 next unless $f =~ /\.h$/;
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234 $mine{$f} = "\$(srcdir)/$f";
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235 $deps{$f} = join(' ', &deps_for("$srcdir/$f"));
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236 }
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237 $mine{'config.h'} = "config.h";
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238
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239 open(IN, "$srcdir/Makefile.in");
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240 open(OUT, ">$srcdir/Makefile.tmp");
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241 while (<IN>) {
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242 last if /remainder of this file/;
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243 print OUT;
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244 }
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245 print OUT "# The dependencies in the remainder of this file are automatically\n";
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246 print OUT "# generated by \"make maint-deps\". Manual edits will be lost.\n\n";
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247
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248 opendir(S, $srcdir);
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249 for $f (sort readdir S) {
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250 if ($f =~ /\.c$/) {
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251
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252 %scanned = ();
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253 @pending = &deps_for("$srcdir/$f");
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254 while (@pending) {
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255 @tmp = @pending;
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256 @pending = ();
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257 for $p (@tmp) {
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258 next unless $mine{$p};
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259 if (!$scanned{$p}) {
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260 push(@pending, split(' ', $deps{$p}));
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261 $scanned{$p} = 1;
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262 }
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263 }
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264 }
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265 @deps = sort { &locals_first($a,$b) } keys %scanned;
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266 $obj = $f;
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267 $obj =~ s/\.c$/.o/;
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268 $obj = "./$obj:";
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269 if ($#deps >= 0) {
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270 print OUT "$obj \$(srcdir)/$f";
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271 $len = length("$obj $f");
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272 for $dt (@deps) {
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273 $d = $mine{$dt};
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274 if ($len + length($d) > 70) {
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275 printf OUT " \\\n\t$d";
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276 $len = 8 + length($d);
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277 } else {
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278 print OUT " $d";
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279 $len += length($d) + 1;
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280 }
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281 }
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282 print OUT "\n";
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283 } else {
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284 print OUT "$obj \$(srcdir)/$f\n";
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285 }
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286 $c = $crule;
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287 $c =~ s@\$\<@\$\(srcdir\)\/$f@g;
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288 print OUT $c;
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289 }
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290 }
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291 closedir(S);
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292 close(IN);
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293 close(OUT);
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294
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295 rename("$srcdir/Makefile.tmp", "$srcdir/Makefile.in");
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296 }
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