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1 #! /bin/sh |
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2 # depcomp - compile a program generating dependencies as side-effects |
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3 |
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4 scriptversion=2005-02-09.22 |
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5 |
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6 # Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc. |
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7 |
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8 # This program is free software; you can redistribute it and/or modify |
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9 # it under the terms of the GNU General Public License as published by |
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10 # the Free Software Foundation; either version 2, or (at your option) |
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11 # any later version. |
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12 |
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13 # This program 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 |
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16 # GNU 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 General Public License |
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19 # along with this program; if not, write to the Free Software |
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20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
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21 # 02111-1307, USA. |
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22 |
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23 # As a special exception to the GNU General Public License, if you |
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24 # distribute this file as part of a program that contains a |
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25 # configuration script generated by Autoconf, you may include it under |
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26 # the same distribution terms that you use for the rest of that program. |
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27 |
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28 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>. |
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29 |
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30 case $1 in |
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31 '') |
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32 echo "$0: No command. Try \`$0 --help' for more information." 1>&2 |
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33 exit 1; |
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34 ;; |
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35 -h | --h*) |
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36 cat <<\EOF |
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37 Usage: depcomp [--help] [--version] PROGRAM [ARGS] |
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38 |
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39 Run PROGRAMS ARGS to compile a file, generating dependencies |
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40 as side-effects. |
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41 |
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42 Environment variables: |
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43 depmode Dependency tracking mode. |
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44 source Source file read by `PROGRAMS ARGS'. |
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45 object Object file output by `PROGRAMS ARGS'. |
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46 DEPDIR directory where to store dependencies. |
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47 depfile Dependency file to output. |
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48 tmpdepfile Temporary file to use when outputing dependencies. |
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49 libtool Whether libtool is used (yes/no). |
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50 |
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51 Report bugs to <bug-automake@gnu.org>. |
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52 EOF |
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53 exit $? |
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54 ;; |
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55 -v | --v*) |
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56 echo "depcomp $scriptversion" |
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57 exit $? |
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58 ;; |
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59 esac |
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60 |
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61 if test -z "$depmode" || test -z "$source" || test -z "$object"; then |
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62 echo "depcomp: Variables source, object and depmode must be set" 1>&2 |
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63 exit 1 |
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64 fi |
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65 |
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66 # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. |
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67 depfile=${depfile-`echo "$object" | |
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68 sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} |
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69 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} |
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70 |
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71 rm -f "$tmpdepfile" |
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72 |
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73 # Some modes work just like other modes, but use different flags. We |
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74 # parameterize here, but still list the modes in the big case below, |
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75 # to make depend.m4 easier to write. Note that we *cannot* use a case |
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76 # here, because this file can only contain one case statement. |
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77 if test "$depmode" = hp; then |
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78 # HP compiler uses -M and no extra arg. |
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79 gccflag=-M |
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80 depmode=gcc |
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81 fi |
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82 |
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83 if test "$depmode" = dashXmstdout; then |
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84 # This is just like dashmstdout with a different argument. |
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85 dashmflag=-xM |
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86 depmode=dashmstdout |
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87 fi |
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88 |
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89 case "$depmode" in |
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90 gcc3) |
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91 ## gcc 3 implements dependency tracking that does exactly what |
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92 ## we want. Yay! Note: for some reason libtool 1.4 doesn't like |
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93 ## it if -MD -MP comes after the -MF stuff. Hmm. |
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94 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" |
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95 stat=$? |
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96 if test $stat -eq 0; then : |
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97 else |
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98 rm -f "$tmpdepfile" |
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99 exit $stat |
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100 fi |
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101 mv "$tmpdepfile" "$depfile" |
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102 ;; |
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103 |
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104 gcc) |
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105 ## There are various ways to get dependency output from gcc. Here's |
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106 ## why we pick this rather obscure method: |
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107 ## - Don't want to use -MD because we'd like the dependencies to end |
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108 ## up in a subdir. Having to rename by hand is ugly. |
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109 ## (We might end up doing this anyway to support other compilers.) |
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110 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like |
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111 ## -MM, not -M (despite what the docs say). |
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112 ## - Using -M directly means running the compiler twice (even worse |
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113 ## than renaming). |
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114 if test -z "$gccflag"; then |
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115 gccflag=-MD, |
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116 fi |
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117 "$@" -Wp,"$gccflag$tmpdepfile" |
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118 stat=$? |
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119 if test $stat -eq 0; then : |
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120 else |
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121 rm -f "$tmpdepfile" |
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122 exit $stat |
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123 fi |
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124 rm -f "$depfile" |
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125 echo "$object : \\" > "$depfile" |
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126 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz |
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127 ## The second -e expression handles DOS-style file names with drive letters. |
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128 sed -e 's/^[^:]*: / /' \ |
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129 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" |
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130 ## This next piece of magic avoids the `deleted header file' problem. |
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131 ## The problem is that when a header file which appears in a .P file |
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132 ## is deleted, the dependency causes make to die (because there is |
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133 ## typically no way to rebuild the header). We avoid this by adding |
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134 ## dummy dependencies for each header file. Too bad gcc doesn't do |
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135 ## this for us directly. |
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136 tr ' ' ' |
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137 ' < "$tmpdepfile" | |
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138 ## Some versions of gcc put a space before the `:'. On the theory |
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139 ## that the space means something, we add a space to the output as |
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140 ## well. |
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141 ## Some versions of the HPUX 10.20 sed can't process this invocation |
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142 ## correctly. Breaking it into two sed invocations is a workaround. |
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143 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" |
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144 rm -f "$tmpdepfile" |
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145 ;; |
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146 |
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147 hp) |
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148 # This case exists only to let depend.m4 do its work. It works by |
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149 # looking at the text of this script. This case will never be run, |
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150 # since it is checked for above. |
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151 exit 1 |
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152 ;; |
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153 |
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154 sgi) |
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155 if test "$libtool" = yes; then |
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156 "$@" "-Wp,-MDupdate,$tmpdepfile" |
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157 else |
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158 "$@" -MDupdate "$tmpdepfile" |
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159 fi |
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160 stat=$? |
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161 if test $stat -eq 0; then : |
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162 else |
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163 rm -f "$tmpdepfile" |
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164 exit $stat |
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165 fi |
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166 rm -f "$depfile" |
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167 |
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168 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files |
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169 echo "$object : \\" > "$depfile" |
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170 |
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171 # Clip off the initial element (the dependent). Don't try to be |
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172 # clever and replace this with sed code, as IRIX sed won't handle |
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173 # lines with more than a fixed number of characters (4096 in |
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174 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; |
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175 # the IRIX cc adds comments like `#:fec' to the end of the |
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176 # dependency line. |
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177 tr ' ' ' |
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178 ' < "$tmpdepfile" \ |
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179 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ |
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180 tr ' |
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181 ' ' ' >> $depfile |
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182 echo >> $depfile |
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183 |
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184 # The second pass generates a dummy entry for each header file. |
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185 tr ' ' ' |
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186 ' < "$tmpdepfile" \ |
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187 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ |
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188 >> $depfile |
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189 else |
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190 # The sourcefile does not contain any dependencies, so just |
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191 # store a dummy comment line, to avoid errors with the Makefile |
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192 # "include basename.Plo" scheme. |
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193 echo "#dummy" > "$depfile" |
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194 fi |
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195 rm -f "$tmpdepfile" |
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196 ;; |
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197 |
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198 aix) |
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199 # The C for AIX Compiler uses -M and outputs the dependencies |
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200 # in a .u file. In older versions, this file always lives in the |
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201 # current directory. Also, the AIX compiler puts `$object:' at the |
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202 # start of each line; $object doesn't have directory information. |
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203 # Version 6 uses the directory in both cases. |
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204 stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'` |
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205 tmpdepfile="$stripped.u" |
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206 if test "$libtool" = yes; then |
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207 "$@" -Wc,-M |
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208 else |
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209 "$@" -M |
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210 fi |
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211 stat=$? |
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212 |
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213 if test -f "$tmpdepfile"; then : |
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214 else |
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215 stripped=`echo "$stripped" | sed 's,^.*/,,'` |
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216 tmpdepfile="$stripped.u" |
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217 fi |
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218 |
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219 if test $stat -eq 0; then : |
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220 else |
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221 rm -f "$tmpdepfile" |
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222 exit $stat |
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223 fi |
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224 |
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225 if test -f "$tmpdepfile"; then |
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226 outname="$stripped.o" |
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227 # Each line is of the form `foo.o: dependent.h'. |
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228 # Do two passes, one to just change these to |
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229 # `$object: dependent.h' and one to simply `dependent.h:'. |
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230 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile" |
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231 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile" |
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232 else |
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233 # The sourcefile does not contain any dependencies, so just |
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234 # store a dummy comment line, to avoid errors with the Makefile |
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235 # "include basename.Plo" scheme. |
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236 echo "#dummy" > "$depfile" |
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237 fi |
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238 rm -f "$tmpdepfile" |
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239 ;; |
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240 |
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241 icc) |
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242 # Intel's C compiler understands `-MD -MF file'. However on |
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243 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c |
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244 # ICC 7.0 will fill foo.d with something like |
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245 # foo.o: sub/foo.c |
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246 # foo.o: sub/foo.h |
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247 # which is wrong. We want: |
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248 # sub/foo.o: sub/foo.c |
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249 # sub/foo.o: sub/foo.h |
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250 # sub/foo.c: |
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251 # sub/foo.h: |
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252 # ICC 7.1 will output |
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253 # foo.o: sub/foo.c sub/foo.h |
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254 # and will wrap long lines using \ : |
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255 # foo.o: sub/foo.c ... \ |
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256 # sub/foo.h ... \ |
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257 # ... |
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258 |
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259 "$@" -MD -MF "$tmpdepfile" |
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260 stat=$? |
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261 if test $stat -eq 0; then : |
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262 else |
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263 rm -f "$tmpdepfile" |
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264 exit $stat |
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265 fi |
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266 rm -f "$depfile" |
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267 # Each line is of the form `foo.o: dependent.h', |
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268 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. |
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269 # Do two passes, one to just change these to |
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270 # `$object: dependent.h' and one to simply `dependent.h:'. |
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271 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" |
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272 # Some versions of the HPUX 10.20 sed can't process this invocation |
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273 # correctly. Breaking it into two sed invocations is a workaround. |
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274 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | |
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275 sed -e 's/$/ :/' >> "$depfile" |
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276 rm -f "$tmpdepfile" |
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277 ;; |
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278 |
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279 tru64) |
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280 # The Tru64 compiler uses -MD to generate dependencies as a side |
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281 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. |
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282 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put |
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283 # dependencies in `foo.d' instead, so we check for that too. |
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284 # Subdirectories are respected. |
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285 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` |
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286 test "x$dir" = "x$object" && dir= |
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287 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` |
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288 |
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289 if test "$libtool" = yes; then |
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290 # With Tru64 cc, shared objects can also be used to make a |
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291 # static library. This mecanism is used in libtool 1.4 series to |
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292 # handle both shared and static libraries in a single compilation. |
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293 # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d. |
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294 # |
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295 # With libtool 1.5 this exception was removed, and libtool now |
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296 # generates 2 separate objects for the 2 libraries. These two |
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297 # compilations output dependencies in in $dir.libs/$base.o.d and |
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298 # in $dir$base.o.d. We have to check for both files, because |
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299 # one of the two compilations can be disabled. We should prefer |
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300 # $dir$base.o.d over $dir.libs/$base.o.d because the latter is |
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301 # automatically cleaned when .libs/ is deleted, while ignoring |
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302 # the former would cause a distcleancheck panic. |
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303 tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4 |
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304 tmpdepfile2=$dir$base.o.d # libtool 1.5 |
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305 tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5 |
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306 tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504 |
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307 "$@" -Wc,-MD |
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308 else |
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309 tmpdepfile1=$dir$base.o.d |
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310 tmpdepfile2=$dir$base.d |
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311 tmpdepfile3=$dir$base.d |
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312 tmpdepfile4=$dir$base.d |
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313 "$@" -MD |
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314 fi |
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315 |
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316 stat=$? |
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317 if test $stat -eq 0; then : |
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318 else |
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319 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" |
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320 exit $stat |
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321 fi |
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322 |
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323 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" |
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324 do |
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325 test -f "$tmpdepfile" && break |
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326 done |
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327 if test -f "$tmpdepfile"; then |
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328 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" |
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329 # That's a tab and a space in the []. |
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330 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" |
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331 else |
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332 echo "#dummy" > "$depfile" |
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333 fi |
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334 rm -f "$tmpdepfile" |
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335 ;; |
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336 |
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337 #nosideeffect) |
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338 # This comment above is used by automake to tell side-effect |
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339 # dependency tracking mechanisms from slower ones. |
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340 |
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341 dashmstdout) |
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342 # Important note: in order to support this mode, a compiler *must* |
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343 # always write the preprocessed file to stdout, regardless of -o. |
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344 "$@" || exit $? |
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345 |
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346 # Remove the call to Libtool. |
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347 if test "$libtool" = yes; then |
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348 while test $1 != '--mode=compile'; do |
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349 shift |
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350 done |
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351 shift |
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352 fi |
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353 |
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354 # Remove `-o $object'. |
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355 IFS=" " |
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356 for arg |
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357 do |
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358 case $arg in |
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359 -o) |
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360 shift |
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361 ;; |
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362 $object) |
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363 shift |
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364 ;; |
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365 *) |
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366 set fnord "$@" "$arg" |
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367 shift # fnord |
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368 shift # $arg |
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369 ;; |
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370 esac |
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371 done |
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372 |
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373 test -z "$dashmflag" && dashmflag=-M |
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374 # Require at least two characters before searching for `:' |
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375 # in the target name. This is to cope with DOS-style filenames: |
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376 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. |
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377 "$@" $dashmflag | |
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378 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" |
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379 rm -f "$depfile" |
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380 cat < "$tmpdepfile" > "$depfile" |
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381 tr ' ' ' |
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382 ' < "$tmpdepfile" | \ |
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383 ## Some versions of the HPUX 10.20 sed can't process this invocation |
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384 ## correctly. Breaking it into two sed invocations is a workaround. |
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385 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" |
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386 rm -f "$tmpdepfile" |
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387 ;; |
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388 |
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389 dashXmstdout) |
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390 # This case only exists to satisfy depend.m4. It is never actually |
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391 # run, as this mode is specially recognized in the preamble. |
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392 exit 1 |
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393 ;; |
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394 |
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395 makedepend) |
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396 "$@" || exit $? |
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397 # Remove any Libtool call |
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398 if test "$libtool" = yes; then |
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399 while test $1 != '--mode=compile'; do |
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400 shift |
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401 done |
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402 shift |
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403 fi |
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404 # X makedepend |
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405 shift |
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406 cleared=no |
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407 for arg in "$@"; do |
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408 case $cleared in |
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409 no) |
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410 set ""; shift |
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411 cleared=yes ;; |
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412 esac |
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413 case "$arg" in |
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414 -D*|-I*) |
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415 set fnord "$@" "$arg"; shift ;; |
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416 # Strip any option that makedepend may not understand. Remove |
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417 # the object too, otherwise makedepend will parse it as a source file. |
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418 -*|$object) |
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419 ;; |
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420 *) |
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421 set fnord "$@" "$arg"; shift ;; |
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422 esac |
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423 done |
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424 obj_suffix="`echo $object | sed 's/^.*\././'`" |
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425 touch "$tmpdepfile" |
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426 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" |
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427 rm -f "$depfile" |
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428 cat < "$tmpdepfile" > "$depfile" |
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429 sed '1,2d' "$tmpdepfile" | tr ' ' ' |
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430 ' | \ |
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431 ## Some versions of the HPUX 10.20 sed can't process this invocation |
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432 ## correctly. Breaking it into two sed invocations is a workaround. |
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433 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" |
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434 rm -f "$tmpdepfile" "$tmpdepfile".bak |
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435 ;; |
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436 |
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437 cpp) |
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438 # Important note: in order to support this mode, a compiler *must* |
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439 # always write the preprocessed file to stdout. |
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440 "$@" || exit $? |
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441 |
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442 # Remove the call to Libtool. |
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443 if test "$libtool" = yes; then |
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444 while test $1 != '--mode=compile'; do |
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445 shift |
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446 done |
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447 shift |
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448 fi |
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449 |
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450 # Remove `-o $object'. |
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451 IFS=" " |
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452 for arg |
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453 do |
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454 case $arg in |
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455 -o) |
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456 shift |
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457 ;; |
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458 $object) |
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459 shift |
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460 ;; |
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461 *) |
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462 set fnord "$@" "$arg" |
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463 shift # fnord |
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464 shift # $arg |
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465 ;; |
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466 esac |
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467 done |
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468 |
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469 "$@" -E | |
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470 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | |
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471 sed '$ s: \\$::' > "$tmpdepfile" |
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472 rm -f "$depfile" |
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473 echo "$object : \\" > "$depfile" |
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474 cat < "$tmpdepfile" >> "$depfile" |
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475 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" |
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476 rm -f "$tmpdepfile" |
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477 ;; |
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478 |
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479 msvisualcpp) |
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480 # Important note: in order to support this mode, a compiler *must* |
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481 # always write the preprocessed file to stdout, regardless of -o, |
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482 # because we must use -o when running libtool. |
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483 "$@" || exit $? |
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484 IFS=" " |
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485 for arg |
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486 do |
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487 case "$arg" in |
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488 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") |
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489 set fnord "$@" |
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490 shift |
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491 shift |
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492 ;; |
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493 *) |
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494 set fnord "$@" "$arg" |
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495 shift |
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496 shift |
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497 ;; |
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498 esac |
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499 done |
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500 "$@" -E | |
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501 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" |
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502 rm -f "$depfile" |
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503 echo "$object : \\" > "$depfile" |
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504 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" |
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505 echo " " >> "$depfile" |
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506 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" |
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507 rm -f "$tmpdepfile" |
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508 ;; |
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509 |
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510 none) |
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511 exec "$@" |
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512 ;; |
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513 |
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514 *) |
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515 echo "Unknown depmode $depmode" 1>&2 |
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516 exit 1 |
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517 ;; |
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518 esac |
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519 |
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520 exit 0 |
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521 |
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522 # Local Variables: |
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523 # mode: shell-script |
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524 # sh-indentation: 2 |
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525 # eval: (add-hook 'write-file-hooks 'time-stamp) |
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526 # time-stamp-start: "scriptversion=" |
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527 # time-stamp-format: "%:y-%02m-%02d.%02H" |
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528 # time-stamp-end: "$" |
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529 # End: |