mirror of
https://git.savannah.gnu.org/git/make.git
synced 2024-11-25 04:35:44 +00:00
80e9a422e4
* README.git: Document the changes. * bootstrap.conf: Set GNULIB_REVISION to avoid random updates. * configure.ac: Set the minimum autoconf version back to 2.69: that's the most common version deployed today, and it still works. * bootstrap: Copy the latest from gnulib. * autogen.sh: Ditto. * autopull.sh: Ditto. * bootstrap-funclib.sh: Ditto.
486 lines
16 KiB
Bash
Executable file
486 lines
16 KiB
Bash
Executable file
#!/bin/sh
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# Convenience script for regenerating all autogeneratable files that are
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# omitted from the version control repository. In particular, this script
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# also regenerates all aclocal.m4, config.h.in, Makefile.in, configure files
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# with new versions of autoconf or automake.
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# Copyright (C) 2003-2022 Free Software Foundation, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# Originally written by Paul Eggert. The canonical version of this
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# script is maintained as top/autogen.sh in gnulib. However, to be
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# useful to your package, you should place a copy of it under version
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# control in the top-level directory of your package. The intent is
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# that all customization can be done with a bootstrap.conf file also
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# maintained in your version control; gnulib comes with a template
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# build-aux/bootstrap.conf to get you started.
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#
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# Alternatively, you can use an autogen.sh script that is specific
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# to your package.
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scriptversion=2022-07-24.15; # UTC
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me="$0"
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medir=`dirname "$me"`
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# Read the function library and the configuration.
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. "$medir"/bootstrap-funclib.sh
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# Ensure that CDPATH is not set. Otherwise, the output from cd
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# would cause trouble in at least one use below.
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(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
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# Environment variables that may be set by the user.
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: "${AUTOPOINT=autopoint}"
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: "${AUTORECONF=autoreconf}"
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if test "$vc_ignore" = auto; then
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vc_ignore=
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test -d .git && vc_ignore=.gitignore
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test -d CVS && vc_ignore="$vc_ignore .cvsignore"
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fi
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usage() {
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cat <<EOF
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Usage: $me [OPTION]...
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Bootstrap this package from the checked-out sources.
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Optional environment variables:
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GNULIB_SRCDIR Specifies the local directory where gnulib
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sources reside. Use this if you already
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have gnulib sources on your machine, and
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you want to use these sources.
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Options:
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--copy copy files instead of creating symbolic links
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--force attempt to bootstrap even if the sources seem
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not to have been checked out
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EOF
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bootstrap_print_option_usage_hook
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cat <<EOF
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If the file bootstrap.conf exists in the same directory as this script, its
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contents are read as shell variables to configure the bootstrap.
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For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
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are honored.
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Gnulib sources are assumed to be present:
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* in \$GNULIB_SRCDIR, if that environment variable is set,
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* otherwise, in the 'gnulib' submodule, if such a submodule is configured,
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* otherwise, in the 'gnulib' subdirectory.
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Running without arguments will suffice in most cases.
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EOF
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}
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# Parse options.
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# Whether to use copies instead of symlinks.
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copy=false
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for option
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do
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case $option in
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--help)
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usage
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exit;;
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--version)
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set -e
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echo "autogen.sh $scriptversion"
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echo "$copyright"
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exit 0
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;;
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--force)
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checkout_only_file=;;
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--copy)
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copy=true;;
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*)
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bootstrap_option_hook $option || die "$option: unknown option";;
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esac
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done
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test -z "$GNULIB_SRCDIR" || test -d "$GNULIB_SRCDIR" \
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|| die "Error: \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option is specified, but does not denote a directory"
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if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
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die "Running this script from a non-checked-out distribution is risky."
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fi
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if $use_gnulib; then
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if test -z "$GNULIB_SRCDIR"; then
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gnulib_path=$(test -f .gitmodules && git config --file .gitmodules submodule.gnulib.path)
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test -z "$gnulib_path" && gnulib_path=gnulib
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GNULIB_SRCDIR=$gnulib_path
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fi
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fi
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version_controlled_file() {
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parent=$1
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file=$2
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if test -d .git; then
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git rm -n "$file" > /dev/null 2>&1
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elif test -d .svn; then
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svn log -r HEAD "$file" > /dev/null 2>&1
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elif test -d CVS; then
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grep -F "/${file##*/}/" "$parent/CVS/Entries" 2>/dev/null |
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grep '^/[^/]*/[0-9]' > /dev/null
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else
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warn_ "no version control for $file?"
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false
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fi
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}
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# Strip blank and comment lines to leave significant entries.
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gitignore_entries() {
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sed '/^#/d; /^$/d' "$@"
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}
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# If $STR is not already on a line by itself in $FILE, insert it at the start.
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# Entries are inserted at the start of the ignore list to ensure existing
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# entries starting with ! are not overridden. Such entries support
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# whitelisting exceptions after a more generic blacklist pattern.
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insert_if_absent() {
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file=$1
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str=$2
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test -f $file || touch $file
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test -r $file || die "Error: failed to read ignore file: $file"
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duplicate_entries=$(gitignore_entries $file | sort | uniq -d)
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if [ "$duplicate_entries" ] ; then
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die "Error: Duplicate entries in $file: " $duplicate_entries
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fi
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linesold=$(gitignore_entries $file | wc -l)
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linesnew=$( { echo "$str"; cat $file; } | gitignore_entries | sort -u | wc -l)
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if [ $linesold != $linesnew ] ; then
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{ echo "$str" | cat - $file > $file.bak && mv $file.bak $file; } \
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|| die "insert_if_absent $file $str: failed"
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fi
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}
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# Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
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# insert_if_absent.
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insert_vc_ignore() {
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vc_ignore_file="$1"
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pattern="$2"
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case $vc_ignore_file in
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*.gitignore)
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# A .gitignore entry that does not start with '/' applies
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# recursively to subdirectories, so prepend '/' to every
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# .gitignore entry.
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pattern=$(echo "$pattern" | sed s,^,/,);;
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esac
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insert_if_absent "$vc_ignore_file" "$pattern"
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}
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symlink_to_dir()
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{
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src=$1/$2
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dst=${3-$2}
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test -f "$src" && {
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# If the destination directory doesn't exist, create it.
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# This is required at least for "lib/uniwidth/cjk.h".
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dst_dir=$(dirname "$dst")
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if ! test -d "$dst_dir"; then
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mkdir -p "$dst_dir"
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# If we've just created a directory like lib/uniwidth,
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# tell version control system(s) it's ignorable.
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# FIXME: for now, this does only one level
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parent=$(dirname "$dst_dir")
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for dot_ig in x $vc_ignore; do
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test $dot_ig = x && continue
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ig=$parent/$dot_ig
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insert_vc_ignore $ig "${dst_dir##*/}"
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done
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fi
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if $copy; then
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{
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test ! -h "$dst" || {
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echo "$me: rm -f $dst" &&
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rm -f "$dst"
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}
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} &&
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test -f "$dst" &&
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cmp -s "$src" "$dst" || {
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echo "$me: cp -fp $src $dst" &&
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cp -fp "$src" "$dst"
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}
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else
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# Leave any existing symlink alone, if it already points to the source,
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# so that broken build tools that care about symlink times
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# aren't confused into doing unnecessary builds. Conversely, if the
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# existing symlink's timestamp is older than the source, make it afresh,
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# so that broken tools aren't confused into skipping needed builds. See
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# <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00326.html>.
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test -h "$dst" &&
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src_ls=$(ls -diL "$src" 2>/dev/null) && set $src_ls && src_i=$1 &&
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dst_ls=$(ls -diL "$dst" 2>/dev/null) && set $dst_ls && dst_i=$1 &&
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test "$src_i" = "$dst_i" &&
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both_ls=$(ls -dt "$src" "$dst") &&
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test "X$both_ls" = "X$dst$nl$src" || {
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dot_dots=
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case $src in
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/*) ;;
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*)
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case /$dst/ in
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*//* | */../* | */./* | /*/*/*/*/*/)
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die "invalid symlink calculation: $src -> $dst";;
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/*/*/*/*/) dot_dots=../../../;;
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/*/*/*/) dot_dots=../../;;
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/*/*/) dot_dots=../;;
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esac;;
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esac
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echo "$me: ln -fs $dot_dots$src $dst" &&
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ln -fs "$dot_dots$src" "$dst"
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}
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fi
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}
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}
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# Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
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found_aux_dir=no
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grep '^[ ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'])' configure.ac \
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>/dev/null && found_aux_dir=yes
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grep '^[ ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \
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>/dev/null && found_aux_dir=yes
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test $found_aux_dir = yes \
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|| die "configure.ac lacks 'AC_CONFIG_AUX_DIR([$build_aux])'; add it"
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# If $build_aux doesn't exist, create it now, otherwise some bits
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# below will malfunction. If creating it, also mark it as ignored.
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if test ! -d $build_aux; then
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mkdir $build_aux
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for dot_ig in x $vc_ignore; do
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test $dot_ig = x && continue
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insert_vc_ignore $dot_ig $build_aux
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done
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fi
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check_build_prerequisites false
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use_libtool=0
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# We'd like to use grep -E, to see if any of LT_INIT,
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# AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
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# but that's not portable enough (e.g., for Solaris).
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grep '^[ ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
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&& use_libtool=1
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grep '^[ ]*LT_INIT' configure.ac >/dev/null \
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&& use_libtool=1
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if test $use_libtool = 1; then
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find_tool LIBTOOLIZE glibtoolize libtoolize
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fi
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if $use_gnulib; then
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gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
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<$gnulib_tool || exit $?
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fi
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# NOTE: we have to be careful to run both autopoint and libtoolize
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# before gnulib-tool, since gnulib-tool is likely to provide newer
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# versions of files "installed" by these two programs.
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# Then, *after* gnulib-tool (see below), we have to be careful to
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# run autoreconf in such a way that it does not run either of these
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# two just-pre-run programs.
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# Import from gettext.
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with_gettext=yes
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grep '^[ ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
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with_gettext=no
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if test $with_gettext = yes || test $use_libtool = 1; then
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tempbase=.bootstrap$$
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trap "rm -f $tempbase.0 $tempbase.1" 1 2 13 15
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> $tempbase.0 > $tempbase.1 &&
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find . ! -type d -print | sort > $tempbase.0 || exit
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if test $with_gettext = yes; then
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# Released autopoint has the tendency to install macros that have been
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# obsoleted in current gnulib, so run this before gnulib-tool.
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echo "$0: $AUTOPOINT --force"
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$AUTOPOINT --force || exit
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fi
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# Autoreconf runs aclocal before libtoolize, which causes spurious
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# warnings if the initial aclocal is confused by the libtoolized
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# (or worse out-of-date) macro directory.
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# libtoolize 1.9b added the --install option; but we support back
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# to libtoolize 1.5.22, where the install action was default.
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if test $use_libtool = 1; then
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install=
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case $($LIBTOOLIZE --help) in
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*--install*) install=--install ;;
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esac
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echo "running: $LIBTOOLIZE $install --copy"
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$LIBTOOLIZE $install --copy
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fi
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find . ! -type d -print | sort >$tempbase.1
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old_IFS=$IFS
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IFS=$nl
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for file in $(comm -13 $tempbase.0 $tempbase.1); do
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IFS=$old_IFS
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parent=${file%/*}
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version_controlled_file "$parent" "$file" || {
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for dot_ig in x $vc_ignore; do
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test $dot_ig = x && continue
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ig=$parent/$dot_ig
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insert_vc_ignore "$ig" "${file##*/}"
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done
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}
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done
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IFS=$old_IFS
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rm -f $tempbase.0 $tempbase.1
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trap - 1 2 13 15
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fi
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# Import from gnulib.
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if $use_gnulib; then
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gnulib_tool_options="\
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--no-changelog\
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--aux-dir=$build_aux\
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--doc-base=$doc_base\
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--lib=$gnulib_name\
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--m4-base=$m4_base/\
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--source-base=$source_base/\
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--tests-base=$tests_base\
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--local-dir=$local_gl_dir\
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$gnulib_tool_option_extras\
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"
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if test $use_libtool = 1; then
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case "$gnulib_tool_options " in
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*' --libtool '*) ;;
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*) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
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esac
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fi
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echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
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$gnulib_tool $gnulib_tool_options --import $gnulib_modules \
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|| die "gnulib-tool failed"
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for file in $gnulib_files; do
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symlink_to_dir "$GNULIB_SRCDIR" $file \
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|| die "failed to symlink $file"
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done
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fi
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bootstrap_post_import_hook \
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|| die "bootstrap_post_import_hook failed"
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# Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
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# gnulib-populated directories. Such .m4 files would cause aclocal to fail.
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# The following requires GNU find 4.2.3 or newer. Considering the usual
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# portability constraints of this script, that may seem a very demanding
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# requirement, but it should be ok. Ignore any failure, which is fine,
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# since this is only a convenience to help developers avoid the relatively
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# unusual case in which a symlinked-to .m4 file is git-removed from gnulib
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# between successive runs of this script.
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find "$m4_base" "$source_base" \
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-depth \( -name '*.m4' -o -name '*.[ch]' \) \
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-type l -xtype l -delete > /dev/null 2>&1
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# Invoke autoreconf with --force --install to ensure upgrades of tools
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# such as ylwrap.
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AUTORECONFFLAGS="--verbose --install --force -I $m4_base $ACLOCAL_FLAGS"
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# Some systems (RHEL 5) are using ancient autotools, for which the
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# --no-recursive option had not been invented. Detect that lack and
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# omit the option when it's not supported. FIXME in 2017: remove this
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# hack when RHEL 5 autotools are updated, or when they become irrelevant.
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case $($AUTORECONF --help) in
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*--no-recursive*) AUTORECONFFLAGS="$AUTORECONFFLAGS --no-recursive";;
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esac
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# Tell autoreconf not to invoke autopoint or libtoolize; they were run above.
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echo "running: AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS"
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AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS \
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|| die "autoreconf failed"
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# Get some extra files from gnulib, overriding existing files.
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for file in $gnulib_extra_files; do
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case $file in
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*/INSTALL) dst=INSTALL;;
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build-aux/*) dst=$build_aux/${file#build-aux/};;
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*) dst=$file;;
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esac
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symlink_to_dir "$GNULIB_SRCDIR" $file $dst \
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|| die "failed to symlink $file"
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done
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if test $with_gettext = yes; then
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# Create gettext configuration.
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echo "$0: Creating po/Makevars from po/Makevars.template ..."
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rm -f po/Makevars
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sed '
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/^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
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/^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/
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/^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'|
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/^XGETTEXT_OPTIONS *=/{
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s/$/ \\/
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a\
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'"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
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}
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' po/Makevars.template >po/Makevars \
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|| die 'cannot generate po/Makevars'
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# If the 'gettext' module is in use, grab the latest Makefile.in.in.
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# If only the 'gettext-h' module is in use, assume autopoint already
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# put the correct version of this file into place.
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case $gnulib_modules in
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*gettext-h*) ;;
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*gettext*)
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cp $GNULIB_SRCDIR/build-aux/po/Makefile.in.in po/Makefile.in.in \
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|| die "cannot create po/Makefile.in.in"
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;;
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esac
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if test -d runtime-po; then
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# Similarly for runtime-po/Makevars, but not quite the same.
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rm -f runtime-po/Makevars
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sed '
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/^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
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/^subdir *=.*/s/=.*/= runtime-po/
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/^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
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/^XGETTEXT_OPTIONS *=/{
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s/$/ \\/
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a\
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'"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
|
|
}
|
|
' po/Makevars.template >runtime-po/Makevars \
|
|
|| die 'cannot generate runtime-po/Makevars'
|
|
|
|
# Copy identical files from po to runtime-po.
|
|
(cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
|
|
fi
|
|
fi
|
|
|
|
bootstrap_epilogue
|
|
|
|
echo "$0: done. Now you can run './configure'."
|
|
|
|
# ----------------------------------------------------------------------------
|
|
|
|
# Local Variables:
|
|
# eval: (add-hook 'before-save-hook 'time-stamp)
|
|
# time-stamp-start: "scriptversion="
|
|
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
|
# time-stamp-time-zone: "UTC0"
|
|
# time-stamp-end: "; # UTC"
|
|
# End:
|