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1 #! /bin/sh
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2
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3 # depcomp - compile a program generating dependencies as side-effects
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4 # Copyright 1999, 2000 Free Software Foundation, Inc.
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5
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6 # This program is free software; you can redistribute it and/or modify
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7 # it under the terms of the GNU General Public License as published by
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8 # the Free Software Foundation; either version 2, or (at your option)
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9 # any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU General Public License for more details.
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15
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16 # You should have received a copy of the GNU General Public License
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17 # along with this program; if not, write to the Free Software
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18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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19 # 02111-1307, USA.
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20
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21 # As a special exception to the GNU General Public License, if you
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22 # distribute this file as part of a program that contains a
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23 # configuration script generated by Autoconf, you may include it under
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24 # the same distribution terms that you use for the rest of that program.
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25
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26 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
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27
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28 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
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29 echo "depcomp: Variables source, object and depmode must be set" 1>&2
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30 exit 1
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31 fi
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32 # `libtool' can also be set to `yes' or `no'.
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33
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34 depfile=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
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35 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
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36
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37 rm -f "$tmpdepfile"
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38
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39 # Some modes work just like other modes, but use different flags. We
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40 # parameterize here, but still list the modes in the big case below,
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41 # to make depend.m4 easier to write. Note that we *cannot* use a case
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42 # here, because this file can only contain one case statement.
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43 if test "$depmode" = hp; then
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44 # HP compiler uses -M and no extra arg.
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45 gccflag=-M
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46 depmode=gcc
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47 fi
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48
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49 if test "$depmode" = dashXmstdout; then
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50 # This is just like dashmstdout with a different argument.
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51 dashmflag=-xM
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52 depmode=dashmstdout
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53 fi
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54
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55 case "$depmode" in
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56 gcc3)
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57 ## gcc 3 implements dependency tracking that does exactly what
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58 ## we want. Yay! Note: for some reason libtool 1.4 doesn't like
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59 ## it if -MD -MP comes after the -MF stuff. Hmm.
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60 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
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61 stat=$?
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62 if test $stat -eq 0; then :
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63 else
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64 rm -f "$tmpdepfile"
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65 exit $stat
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66 fi
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67 mv "$tmpdepfile" "$depfile"
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68 ;;
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69
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70 gcc)
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71 ## There are various ways to get dependency output from gcc. Here's
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72 ## why we pick this rather obscure method:
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73 ## - Don't want to use -MD because we'd like the dependencies to end
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74 ## up in a subdir. Having to rename by hand is ugly.
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75 ## (We might end up doing this anyway to support other compilers.)
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76 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
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77 ## -MM, not -M (despite what the docs say).
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78 ## - Using -M directly means running the compiler twice (even worse
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79 ## than renaming).
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80 if test -z "$gccflag"; then
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81 gccflag=-MD,
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82 fi
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83 "$@" -Wp,"$gccflag$tmpdepfile"
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84 stat=$?
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85 if test $stat -eq 0; then :
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86 else
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87 rm -f "$tmpdepfile"
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88 exit $stat
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89 fi
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90 rm -f "$depfile"
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91 echo "$object : \\" > "$depfile"
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92 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
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93 ## The second -e expression handles DOS-style file names with drive letters.
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94 sed -e 's/^[^:]*: / /' \
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95 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
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96 ## This next piece of magic avoids the `deleted header file' problem.
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97 ## The problem is that when a header file which appears in a .P file
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98 ## is deleted, the dependency causes make to die (because there is
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99 ## typically no way to rebuild the header). We avoid this by adding
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100 ## dummy dependencies for each header file. Too bad gcc doesn't do
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101 ## this for us directly.
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102 tr ' ' '
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103 ' < "$tmpdepfile" |
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104 ## Some versions of gcc put a space before the `:'. On the theory
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105 ## that the space means something, we add a space to the output as
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106 ## well.
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107 ## Some versions of the HPUX 10.20 sed can't process this invocation
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108 ## correctly. Breaking it into two sed invocations is a workaround.
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109 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
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110 rm -f "$tmpdepfile"
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111 ;;
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112
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113 hp)
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114 # This case exists only to let depend.m4 do its work. It works by
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115 # looking at the text of this script. This case will never be run,
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116 # since it is checked for above.
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117 exit 1
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118 ;;
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119
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120 sgi)
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121 if test "$libtool" = yes; then
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122 "$@" "-Wp,-MDupdate,$tmpdepfile"
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123 else
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124 "$@" -MDupdate "$tmpdepfile"
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125 fi
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126 stat=$?
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127 if test $stat -eq 0; then :
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128 else
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129 rm -f "$tmpdepfile"
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130 exit $stat
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131 fi
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132 rm -f "$depfile"
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133
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134 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
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135 echo "$object : \\" > "$depfile"
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136
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137 # Clip off the initial element (the dependent). Don't try to be
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138 # clever and replace this with sed code, as IRIX sed won't handle
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139 # lines with more than a fixed number of characters (4096 in
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140 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
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141 # the IRIX cc adds comments like `#:fec' to the end of the
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142 # dependency line.
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143 tr ' ' '
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144 ' < "$tmpdepfile" \
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145 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
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146 tr '
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147 ' ' ' >> $depfile
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148 echo >> $depfile
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149
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150 # The second pass generates a dummy entry for each header file.
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151 tr ' ' '
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152 ' < "$tmpdepfile" \
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153 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
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154 >> $depfile
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155 else
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156 # The sourcefile does not contain any dependencies, so just
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157 # store a dummy comment line, to avoid errors with the Makefile
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158 # "include basename.Plo" scheme.
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159 echo "#dummy" > "$depfile"
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160 fi
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161 rm -f "$tmpdepfile"
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162 ;;
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163
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164 aix)
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165 # The C for AIX Compiler uses -M and outputs the dependencies
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166 # in a .u file. This file always lives in the current directory.
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167 # Also, the AIX compiler puts `$object:' at the start of each line;
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168 # $object doesn't have directory information.
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169 stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
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170 tmpdepfile="$stripped.u"
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171 outname="$stripped.o"
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172 if test "$libtool" = yes; then
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173 "$@" -Wc,-M
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174 else
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175 "$@" -M
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176 fi
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177
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178 stat=$?
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179 if test $stat -eq 0; then :
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180 else
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181 rm -f "$tmpdepfile"
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182 exit $stat
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183 fi
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184
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185 if test -f "$tmpdepfile"; then
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186 # Each line is of the form `foo.o: dependent.h'.
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187 # Do two passes, one to just change these to
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188 # `$object: dependent.h' and one to simply `dependent.h:'.
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189 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
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190 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
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191 else
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192 # The sourcefile does not contain any dependencies, so just
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193 # store a dummy comment line, to avoid errors with the Makefile
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194 # "include basename.Plo" scheme.
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195 echo "#dummy" > "$depfile"
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196 fi
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197 rm -f "$tmpdepfile"
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198 ;;
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199
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200 icc)
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201 # Must come before tru64.
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202
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203 # Intel's C compiler understands `-MD -MF file'. However
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204 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
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205 # will fill foo.d with something like
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206 # foo.o: sub/foo.c
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207 # foo.o: sub/foo.h
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208 # which is wrong. We want:
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209 # sub/foo.o: sub/foo.c
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210 # sub/foo.o: sub/foo.h
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211 # sub/foo.c:
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212 # sub/foo.h:
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213
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214 "$@" -MD -MF "$tmpdepfile"
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215 stat=$?
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216 if test $stat -eq 0; then :
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217 else
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218 rm -f "$tmpdepfile"
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219 exit $stat
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220 fi
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221 rm -f "$depfile"
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222 # Each line is of the form `foo.o: dependent.h'.
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223 # Do two passes, one to just change these to
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224 # `$object: dependent.h' and one to simply `dependent.h:'.
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225 sed -e "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
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226 sed -e "s,^[^:]*: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
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227 rm -f "$tmpdepfile"
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228 ;;
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229
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230 tru64)
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231 # The Tru64 AIX compiler uses -MD to generate dependencies as a side
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232 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
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233 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
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234 # dependencies in `foo.d' instead, so we check for that too.
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235 # Subdirectories are respected.
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236
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237 tmpdepfile1="$object.d"
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238 tmpdepfile2=`echo "$object" | sed -e 's/.o$/.d/'`
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239 if test "$libtool" = yes; then
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240 "$@" -Wc,-MD
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241 else
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242 "$@" -MD
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243 fi
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244
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245 stat=$?
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246 if test $stat -eq 0; then :
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247 else
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248 rm -f "$tmpdepfile1" "$tmpdepfile2"
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249 exit $stat
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250 fi
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251
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252 if test -f "$tmpdepfile1"; then
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253 tmpdepfile="$tmpdepfile1"
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254 else
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255 tmpdepfile="$tmpdepfile2"
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256 fi
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257 if test -f "$tmpdepfile"; then
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258 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
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259 # That's a space and a tab in the [].
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260 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
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261 else
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262 echo "#dummy" > "$depfile"
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263 fi
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264 rm -f "$tmpdepfile"
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265 ;;
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266
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267 #nosideeffect)
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268 # This comment above is used by automake to tell side-effect
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269 # dependency tracking mechanisms from slower ones.
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270
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271 dashmstdout)
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272 # Important note: in order to support this mode, a compiler *must*
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273 # always write the proprocessed file to stdout, regardless of -o,
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274 # because we must use -o when running libtool.
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275 test -z "$dashmflag" && dashmflag=-M
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276 ( IFS=" "
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277 case " $* " in
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278 *" --mode=compile "*) # this is libtool, let us make it quiet
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279 for arg
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280 do # cycle over the arguments
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281 case "$arg" in
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282 "--mode=compile")
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283 # insert --quiet before "--mode=compile"
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284 set fnord "$@" --quiet
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285 shift # fnord
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286 ;;
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287 esac
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288 set fnord "$@" "$arg"
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289 shift # fnord
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290 shift # "$arg"
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291 done
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292 ;;
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293 esac
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294 "$@" $dashmflag | sed 's:^[^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
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295 ) &
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296 proc=$!
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297 "$@"
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298 stat=$?
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299 wait "$proc"
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300 if test "$stat" != 0; then exit $stat; fi
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301 rm -f "$depfile"
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302 cat < "$tmpdepfile" > "$depfile"
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303 tr ' ' '
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304 ' < "$tmpdepfile" | \
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305 ## Some versions of the HPUX 10.20 sed can't process this invocation
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306 ## correctly. Breaking it into two sed invocations is a workaround.
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307 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
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308 rm -f "$tmpdepfile"
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309 ;;
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310
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311 dashXmstdout)
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312 # This case only exists to satisfy depend.m4. It is never actually
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313 # run, as this mode is specially recognized in the preamble.
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314 exit 1
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315 ;;
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316
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317 makedepend)
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318 # X makedepend
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319 (
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320 shift
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321 cleared=no
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322 for arg in "$@"; do
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323 case $cleared in no)
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324 set ""; shift
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325 cleared=yes
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326 esac
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327 case "$arg" in
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328 -D*|-I*)
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329 set fnord "$@" "$arg"; shift;;
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330 -*)
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331 ;;
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332 *)
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333 set fnord "$@" "$arg"; shift;;
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334 esac
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335 done
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336 obj_suffix="`echo $object | sed 's/^.*\././'`"
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337 touch "$tmpdepfile"
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338 ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@"
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339 ) &
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340 proc=$!
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341 "$@"
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342 stat=$?
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343 wait "$proc"
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344 if test "$stat" != 0; then exit $stat; fi
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345 rm -f "$depfile"
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346 cat < "$tmpdepfile" > "$depfile"
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347 tail +3 "$tmpdepfile" | tr ' ' '
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348 ' | \
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349 ## Some versions of the HPUX 10.20 sed can't process this invocation
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350 ## correctly. Breaking it into two sed invocations is a workaround.
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351 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
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352 rm -f "$tmpdepfile" "$tmpdepfile".bak
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353 ;;
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354
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355 cpp)
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356 # Important note: in order to support this mode, a compiler *must*
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357 # always write the proprocessed file to stdout, regardless of -o,
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358 # because we must use -o when running libtool.
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359 ( IFS=" "
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360 case " $* " in
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361 *" --mode=compile "*)
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362 for arg
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363 do # cycle over the arguments
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364 case $arg in
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365 "--mode=compile")
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366 # insert --quiet before "--mode=compile"
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367 set fnord "$@" --quiet
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368 shift # fnord
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369 ;;
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370 esac
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371 set fnord "$@" "$arg"
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372 shift # fnord
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373 shift # "$arg"
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374 done
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375 ;;
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376 esac
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377 "$@" -E |
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378 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
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379 sed '$ s: \\$::' > "$tmpdepfile"
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380 ) &
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381 proc=$!
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382 "$@"
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383 stat=$?
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384 wait "$proc"
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385 if test "$stat" != 0; then exit $stat; fi
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386 rm -f "$depfile"
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387 echo "$object : \\" > "$depfile"
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388 cat < "$tmpdepfile" >> "$depfile"
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389 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
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390 rm -f "$tmpdepfile"
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391 ;;
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392
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393 msvisualcpp)
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394 # Important note: in order to support this mode, a compiler *must*
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395 # always write the proprocessed file to stdout, regardless of -o,
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396 # because we must use -o when running libtool.
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397 ( IFS=" "
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398 case " $* " in
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399 *" --mode=compile "*)
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400 for arg
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401 do # cycle over the arguments
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402 case $arg in
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403 "--mode=compile")
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404 # insert --quiet before "--mode=compile"
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405 set fnord "$@" --quiet
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406 shift # fnord
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407 ;;
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408 esac
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409 set fnord "$@" "$arg"
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410 shift # fnord
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411 shift # "$arg"
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412 done
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413 ;;
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414 esac
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415 "$@" -E |
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416 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
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417 ) &
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418 proc=$!
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419 "$@"
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420 stat=$?
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421 wait "$proc"
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422 if test "$stat" != 0; then exit $stat; fi
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423 rm -f "$depfile"
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424 echo "$object : \\" > "$depfile"
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425 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
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426 echo " " >> "$depfile"
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427 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
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428 rm -f "$tmpdepfile"
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429 ;;
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430
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431 none)
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432 exec "$@"
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433 ;;
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434
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435 *)
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436 echo "Unknown depmode $depmode" 1>&2
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437 exit 1
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438 ;;
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439 esac
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440
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441 exit 0
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