31420
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1 #!/bin/sh |
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2 # Convenience script for regenerating all autogeneratable files that are |
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3 # omitted from the version control repository. In particular, this script |
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4 # also regenerates all aclocal.m4, config.h.in, Makefile.in, configure files |
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5 # with new versions of autoconf or automake. |
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6 |
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7 # Copyright (C) 2003-2022 Free Software Foundation, Inc. |
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8 # |
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9 # This program is free software: you can redistribute it and/or modify |
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10 # it under the terms of the GNU General Public License as published by |
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11 # the Free Software Foundation, either version 3 of the License, or |
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12 # (at your option) any later version. |
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13 # |
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14 # This program is distributed in the hope that it will be useful, |
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15 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 # GNU General Public License for more details. |
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18 # |
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19 # You should have received a copy of the GNU General Public License |
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20 # along with this program. If not, see <https://www.gnu.org/licenses/>. |
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21 |
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22 # Originally written by Paul Eggert. The canonical version of this |
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23 # script is maintained as top/autogen.sh in gnulib. However, to be |
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24 # useful to your package, you should place a copy of it under version |
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25 # control in the top-level directory of your package. The intent is |
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26 # that all customization can be done with a bootstrap.conf file also |
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27 # maintained in your version control; gnulib comes with a template |
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28 # build-aux/bootstrap.conf to get you started. |
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29 # |
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30 # Alternatively, you can use an autogen.sh script that is specific |
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31 # to your package. |
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32 |
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33 scriptversion=2022-07-24.15; # UTC |
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34 |
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35 me="$0" |
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36 medir=`dirname "$me"` |
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37 |
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38 # Read the function library and the configuration. |
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39 . "$medir"/bootstrap-funclib.sh |
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40 |
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41 # Ensure that CDPATH is not set. Otherwise, the output from cd |
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42 # would cause trouble in at least one use below. |
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43 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH |
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44 |
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45 # Environment variables that may be set by the user. |
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46 : "${AUTOPOINT=autopoint}" |
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47 : "${AUTORECONF=autoreconf}" |
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48 |
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49 if test "$vc_ignore" = auto; then |
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50 vc_ignore= |
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51 test -d .git && vc_ignore=.gitignore |
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52 test -d CVS && vc_ignore="$vc_ignore .cvsignore" |
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53 fi |
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54 |
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55 usage() { |
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56 cat <<EOF |
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57 Usage: $me [OPTION]... |
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58 Bootstrap this package from the checked-out sources. |
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59 |
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60 Optional environment variables: |
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61 GNULIB_SRCDIR Specifies the local directory where gnulib |
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62 sources reside. Use this if you already |
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63 have gnulib sources on your machine, and |
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64 you want to use these sources. |
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65 |
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66 Options: |
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67 --copy copy files instead of creating symbolic links |
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68 --force attempt to bootstrap even if the sources seem |
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69 not to have been checked out |
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70 EOF |
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71 bootstrap_print_option_usage_hook |
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72 cat <<EOF |
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73 If the file bootstrap.conf exists in the same directory as this script, its |
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74 contents are read as shell variables to configure the bootstrap. |
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75 |
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76 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR |
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77 are honored. |
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78 |
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79 Gnulib sources are assumed to be present: |
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80 * in \$GNULIB_SRCDIR, if that environment variable is set, |
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81 * otherwise, in the 'gnulib' submodule, if such a submodule is configured, |
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82 * otherwise, in the 'gnulib' subdirectory. |
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83 |
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84 Running without arguments will suffice in most cases. |
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85 EOF |
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86 } |
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87 |
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88 # Parse options. |
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89 |
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90 # Whether to use copies instead of symlinks. |
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91 copy=false |
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92 |
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93 for option |
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94 do |
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95 case $option in |
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96 --help) |
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97 usage |
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98 exit;; |
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99 --version) |
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100 set -e |
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101 echo "autogen.sh $scriptversion" |
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102 echo "$copyright" |
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103 exit 0 |
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104 ;; |
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105 --force) |
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106 checkout_only_file=;; |
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107 --copy) |
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108 copy=true;; |
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109 *) |
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110 bootstrap_option_hook $option || die "$option: unknown option";; |
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111 esac |
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112 done |
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113 |
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114 test -z "$GNULIB_SRCDIR" || test -d "$GNULIB_SRCDIR" \ |
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115 || die "Error: \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option is specified, but does not denote a directory" |
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116 |
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117 if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then |
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118 die "Running this script from a non-checked-out distribution is risky." |
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119 fi |
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120 |
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121 if $use_gnulib; then |
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122 if test -z "$GNULIB_SRCDIR"; then |
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123 gnulib_path=$(test -f .gitmodules && git config --file .gitmodules submodule.gnulib.path) |
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124 test -z "$gnulib_path" && gnulib_path=gnulib |
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125 GNULIB_SRCDIR=$gnulib_path |
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126 fi |
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127 fi |
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128 |
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129 version_controlled_file() { |
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130 parent=$1 |
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131 file=$2 |
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132 if test -d .git; then |
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133 git rm -n "$file" > /dev/null 2>&1 |
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134 elif test -d .svn; then |
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135 svn log -r HEAD "$file" > /dev/null 2>&1 |
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136 elif test -d CVS; then |
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137 grep -F "/${file##*/}/" "$parent/CVS/Entries" 2>/dev/null | |
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138 grep '^/[^/]*/[0-9]' > /dev/null |
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139 else |
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140 warn_ "no version control for $file?" |
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141 false |
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142 fi |
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143 } |
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144 |
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145 # Strip blank and comment lines to leave significant entries. |
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146 gitignore_entries() { |
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147 sed '/^#/d; /^$/d' "$@" |
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148 } |
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149 |
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150 # If $STR is not already on a line by itself in $FILE, insert it at the start. |
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151 # Entries are inserted at the start of the ignore list to ensure existing |
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152 # entries starting with ! are not overridden. Such entries support |
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153 # whitelisting exceptions after a more generic blacklist pattern. |
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154 insert_if_absent() { |
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155 file=$1 |
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156 str=$2 |
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157 test -f $file || touch $file |
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158 test -r $file || die "Error: failed to read ignore file: $file" |
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159 duplicate_entries=$(gitignore_entries $file | sort | uniq -d) |
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160 if [ "$duplicate_entries" ] ; then |
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161 die "Error: Duplicate entries in $file: " $duplicate_entries |
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162 fi |
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163 linesold=$(gitignore_entries $file | wc -l) |
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164 linesnew=$( { echo "$str"; cat $file; } | gitignore_entries | sort -u | wc -l) |
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165 if [ $linesold != $linesnew ] ; then |
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166 { echo "$str" | cat - $file > $file.bak && mv $file.bak $file; } \ |
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167 || die "insert_if_absent $file $str: failed" |
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168 fi |
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169 } |
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170 |
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171 # Adjust $PATTERN for $VC_IGNORE_FILE and insert it with |
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172 # insert_if_absent. |
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173 insert_vc_ignore() { |
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174 vc_ignore_file="$1" |
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175 pattern="$2" |
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176 case $vc_ignore_file in |
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177 *.gitignore) |
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178 # A .gitignore entry that does not start with '/' applies |
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179 # recursively to subdirectories, so prepend '/' to every |
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180 # .gitignore entry. |
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181 pattern=$(echo "$pattern" | sed s,^,/,);; |
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182 esac |
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183 insert_if_absent "$vc_ignore_file" "$pattern" |
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184 } |
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185 |
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186 symlink_to_dir() |
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187 { |
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188 src=$1/$2 |
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189 dst=${3-$2} |
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190 |
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191 test -f "$src" && { |
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192 |
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193 # If the destination directory doesn't exist, create it. |
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194 # This is required at least for "lib/uniwidth/cjk.h". |
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195 dst_dir=$(dirname "$dst") |
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196 if ! test -d "$dst_dir"; then |
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197 mkdir -p "$dst_dir" |
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198 |
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199 # If we've just created a directory like lib/uniwidth, |
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200 # tell version control system(s) it's ignorable. |
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201 # FIXME: for now, this does only one level |
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202 parent=$(dirname "$dst_dir") |
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203 for dot_ig in x $vc_ignore; do |
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204 test $dot_ig = x && continue |
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205 ig=$parent/$dot_ig |
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206 insert_vc_ignore $ig "${dst_dir##*/}" |
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207 done |
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208 fi |
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209 |
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210 if $copy; then |
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211 { |
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212 test ! -h "$dst" || { |
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213 echo "$me: rm -f $dst" && |
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214 rm -f "$dst" |
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215 } |
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216 } && |
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217 test -f "$dst" && |
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218 cmp -s "$src" "$dst" || { |
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219 echo "$me: cp -fp $src $dst" && |
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220 cp -fp "$src" "$dst" |
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221 } |
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222 else |
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223 # Leave any existing symlink alone, if it already points to the source, |
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224 # so that broken build tools that care about symlink times |
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225 # aren't confused into doing unnecessary builds. Conversely, if the |
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226 # existing symlink's timestamp is older than the source, make it afresh, |
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227 # so that broken tools aren't confused into skipping needed builds. See |
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228 # <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00326.html>. |
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229 test -h "$dst" && |
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230 src_ls=$(ls -diL "$src" 2>/dev/null) && set $src_ls && src_i=$1 && |
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231 dst_ls=$(ls -diL "$dst" 2>/dev/null) && set $dst_ls && dst_i=$1 && |
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232 test "$src_i" = "$dst_i" && |
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233 both_ls=$(ls -dt "$src" "$dst") && |
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234 test "X$both_ls" = "X$dst$nl$src" || { |
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235 dot_dots= |
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236 case $src in |
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237 /*) ;; |
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238 *) |
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239 case /$dst/ in |
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240 *//* | */../* | */./* | /*/*/*/*/*/) |
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241 die "invalid symlink calculation: $src -> $dst";; |
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242 /*/*/*/*/) dot_dots=../../../;; |
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243 /*/*/*/) dot_dots=../../;; |
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244 /*/*/) dot_dots=../;; |
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245 esac;; |
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246 esac |
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247 |
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248 echo "$me: ln -fs $dot_dots$src $dst" && |
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249 ln -fs "$dot_dots$src" "$dst" |
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250 } |
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251 fi |
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252 } |
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253 } |
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254 |
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255 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac. |
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256 found_aux_dir=no |
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257 grep '^[ ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'])' configure.ac \ |
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258 >/dev/null && found_aux_dir=yes |
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259 grep '^[ ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \ |
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260 >/dev/null && found_aux_dir=yes |
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261 test $found_aux_dir = yes \ |
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262 || die "configure.ac lacks 'AC_CONFIG_AUX_DIR([$build_aux])'; add it" |
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263 |
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264 # If $build_aux doesn't exist, create it now, otherwise some bits |
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265 # below will malfunction. If creating it, also mark it as ignored. |
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266 if test ! -d $build_aux; then |
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267 mkdir $build_aux |
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268 for dot_ig in x $vc_ignore; do |
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269 test $dot_ig = x && continue |
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270 insert_vc_ignore $dot_ig $build_aux |
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271 done |
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272 fi |
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273 |
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274 check_build_prerequisites false |
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275 |
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276 use_libtool=0 |
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277 # We'd like to use grep -E, to see if any of LT_INIT, |
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278 # AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac, |
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279 # but that's not portable enough (e.g., for Solaris). |
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280 grep '^[ ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \ |
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281 && use_libtool=1 |
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282 grep '^[ ]*LT_INIT' configure.ac >/dev/null \ |
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283 && use_libtool=1 |
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284 if test $use_libtool = 1; then |
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285 find_tool LIBTOOLIZE glibtoolize libtoolize |
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286 fi |
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287 |
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288 if $use_gnulib; then |
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289 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool |
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290 <$gnulib_tool || exit $? |
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291 fi |
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292 |
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293 # NOTE: we have to be careful to run both autopoint and libtoolize |
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294 # before gnulib-tool, since gnulib-tool is likely to provide newer |
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295 # versions of files "installed" by these two programs. |
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296 # Then, *after* gnulib-tool (see below), we have to be careful to |
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297 # run autoreconf in such a way that it does not run either of these |
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298 # two just-pre-run programs. |
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299 |
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300 # Import from gettext. |
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301 with_gettext=yes |
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302 grep '^[ ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \ |
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303 with_gettext=no |
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304 |
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305 if test $with_gettext = yes || test $use_libtool = 1; then |
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306 |
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307 tempbase=.bootstrap$$ |
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308 trap "rm -f $tempbase.0 $tempbase.1" 1 2 13 15 |
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309 |
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310 > $tempbase.0 > $tempbase.1 && |
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311 find . ! -type d -print | sort > $tempbase.0 || exit |
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312 |
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313 if test $with_gettext = yes; then |
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314 # Released autopoint has the tendency to install macros that have been |
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315 # obsoleted in current gnulib, so run this before gnulib-tool. |
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316 echo "$0: $AUTOPOINT --force" |
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317 $AUTOPOINT --force || exit |
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318 fi |
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319 |
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320 # Autoreconf runs aclocal before libtoolize, which causes spurious |
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321 # warnings if the initial aclocal is confused by the libtoolized |
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322 # (or worse out-of-date) macro directory. |
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323 # libtoolize 1.9b added the --install option; but we support back |
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324 # to libtoolize 1.5.22, where the install action was default. |
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325 if test $use_libtool = 1; then |
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326 install= |
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327 case $($LIBTOOLIZE --help) in |
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328 *--install*) install=--install ;; |
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329 esac |
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330 echo "running: $LIBTOOLIZE $install --copy" |
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331 $LIBTOOLIZE $install --copy |
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332 fi |
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333 |
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334 find . ! -type d -print | sort >$tempbase.1 |
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335 old_IFS=$IFS |
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336 IFS=$nl |
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337 for file in $(comm -13 $tempbase.0 $tempbase.1); do |
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338 IFS=$old_IFS |
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339 parent=${file%/*} |
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340 version_controlled_file "$parent" "$file" || { |
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341 for dot_ig in x $vc_ignore; do |
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342 test $dot_ig = x && continue |
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343 ig=$parent/$dot_ig |
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344 insert_vc_ignore "$ig" "${file##*/}" |
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345 done |
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346 } |
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347 done |
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348 IFS=$old_IFS |
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349 |
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350 rm -f $tempbase.0 $tempbase.1 |
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351 trap - 1 2 13 15 |
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352 fi |
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353 |
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354 # Import from gnulib. |
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355 |
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356 if $use_gnulib; then |
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357 gnulib_tool_options="\ |
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358 --no-changelog\ |
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359 --aux-dir=$build_aux\ |
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360 --doc-base=$doc_base\ |
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361 --lib=$gnulib_name\ |
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362 --m4-base=$m4_base/\ |
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363 --source-base=$source_base/\ |
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364 --tests-base=$tests_base\ |
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365 --local-dir=$local_gl_dir\ |
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366 $gnulib_tool_option_extras\ |
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367 " |
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368 if test $use_libtool = 1; then |
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369 case "$gnulib_tool_options " in |
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370 *' --libtool '*) ;; |
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371 *) gnulib_tool_options="$gnulib_tool_options --libtool" ;; |
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372 esac |
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373 fi |
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374 echo "$0: $gnulib_tool $gnulib_tool_options --import ..." |
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375 $gnulib_tool $gnulib_tool_options --import $gnulib_modules \ |
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376 || die "gnulib-tool failed" |
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377 |
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378 for file in $gnulib_files; do |
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379 symlink_to_dir "$GNULIB_SRCDIR" $file \ |
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380 || die "failed to symlink $file" |
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381 done |
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382 fi |
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383 |
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384 bootstrap_post_import_hook \ |
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385 || die "bootstrap_post_import_hook failed" |
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386 |
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387 # Remove any dangling symlink matching "*.m4" or "*.[ch]" in some |
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388 # gnulib-populated directories. Such .m4 files would cause aclocal to fail. |
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389 # The following requires GNU find 4.2.3 or newer. Considering the usual |
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390 # portability constraints of this script, that may seem a very demanding |
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391 # requirement, but it should be ok. Ignore any failure, which is fine, |
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392 # since this is only a convenience to help developers avoid the relatively |
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393 # unusual case in which a symlinked-to .m4 file is git-removed from gnulib |
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394 # between successive runs of this script. |
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395 find "$m4_base" "$source_base" \ |
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396 -depth \( -name '*.m4' -o -name '*.[ch]' \) \ |
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397 -type l -xtype l -delete > /dev/null 2>&1 |
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398 |
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399 # Invoke autoreconf with --force --install to ensure upgrades of tools |
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400 # such as ylwrap. |
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401 AUTORECONFFLAGS="--verbose --install --force -I $m4_base $ACLOCAL_FLAGS" |
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402 |
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403 # Some systems (RHEL 5) are using ancient autotools, for which the |
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404 # --no-recursive option had not been invented. Detect that lack and |
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405 # omit the option when it's not supported. FIXME in 2017: remove this |
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406 # hack when RHEL 5 autotools are updated, or when they become irrelevant. |
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407 case $($AUTORECONF --help) in |
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408 *--no-recursive*) AUTORECONFFLAGS="$AUTORECONFFLAGS --no-recursive";; |
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409 esac |
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410 |
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411 # Tell autoreconf not to invoke autopoint or libtoolize; they were run above. |
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412 echo "running: AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS" |
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413 AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS \ |
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414 || die "autoreconf failed" |
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415 |
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416 # Get some extra files from gnulib, overriding existing files. |
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417 for file in $gnulib_extra_files; do |
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418 case $file in |
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419 */INSTALL) dst=INSTALL;; |
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420 build-aux/*) dst=$build_aux/${file#build-aux/};; |
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421 *) dst=$file;; |
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422 esac |
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423 symlink_to_dir "$GNULIB_SRCDIR" $file $dst \ |
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424 || die "failed to symlink $file" |
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425 done |
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426 |
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427 if test $with_gettext = yes; then |
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428 # Create gettext configuration. |
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429 echo "$0: Creating po/Makevars from po/Makevars.template ..." |
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430 rm -f po/Makevars |
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431 sed ' |
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432 /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/ |
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433 /^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/ |
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434 /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'| |
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435 /^XGETTEXT_OPTIONS *=/{ |
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436 s/$/ \\/ |
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437 a\ |
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438 '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+} |
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439 } |
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440 ' po/Makevars.template >po/Makevars \ |
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441 || die 'cannot generate po/Makevars' |
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442 |
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443 # If the 'gettext' module is in use, grab the latest Makefile.in.in. |
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444 # If only the 'gettext-h' module is in use, assume autopoint already |
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445 # put the correct version of this file into place. |
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446 case $gnulib_modules in |
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447 *gettext-h*) ;; |
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448 *gettext*) |
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449 cp $GNULIB_SRCDIR/build-aux/po/Makefile.in.in po/Makefile.in.in \ |
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450 || die "cannot create po/Makefile.in.in" |
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451 ;; |
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452 esac |
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453 |
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454 if test -d runtime-po; then |
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455 # Similarly for runtime-po/Makevars, but not quite the same. |
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456 rm -f runtime-po/Makevars |
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457 sed ' |
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458 /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/ |
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459 /^subdir *=.*/s/=.*/= runtime-po/ |
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460 /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/ |
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461 /^XGETTEXT_OPTIONS *=/{ |
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462 s/$/ \\/ |
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463 a\ |
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464 '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+} |
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465 } |
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466 ' po/Makevars.template >runtime-po/Makevars \ |
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467 || die 'cannot generate runtime-po/Makevars' |
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468 |
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469 # Copy identical files from po to runtime-po. |
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470 (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po) |
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471 fi |
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472 fi |
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473 |
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474 bootstrap_epilogue |
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475 |
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476 echo "$0: done. Now you can run './configure'." |
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477 |
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478 # ---------------------------------------------------------------------------- |
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479 |
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480 # Local Variables: |
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481 # eval: (add-hook 'before-save-hook 'time-stamp) |
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482 # time-stamp-start: "scriptversion=" |
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483 # time-stamp-format: "%:y-%02m-%02d.%02H" |
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484 # time-stamp-time-zone: "UTC0" |
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485 # time-stamp-end: "; # UTC" |
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486 # End: |