# bash completion for configure

# No "have configure" here on purpose, it's rarely in any $PATH

_configure()
{
    local cur prev words cword split
    _init_completion -s || return

    case $prev in
        -h|--help|-V|--version|--program-prefix|--program-suffix|\
        --program-transform-name)
            return
            ;;
        --*file)
            _filedir
            return
            ;;
        --*prefix|--*dir)
            _filedir -d
            return
            ;;
    esac

    $split && return 0

    # if $COMP_CONFIGURE_HINTS is not null, then completions of the form
    # --option=SETTING will include 'SETTING' as a contextual hint
    [[ "$cur" != -* ]] && return 0

    if [ -n "$COMP_CONFIGURE_HINTS" ]; then
        COMPREPLY=( $( compgen -W "$( $1 --help 2>&1 | \
            awk '/^  --[A-Za-z]/ { print $1; \
            if ($2 ~ /--[A-Za-z]/) print $2 }' | sed -e 's/[[,].*//g' )" \
            -- "$cur" ) )
        [[ $COMPREPLY == *=* ]] && compopt -o nospace
    else
        COMPREPLY=( $( compgen -W '$( _parse_help "$1" )' -- "$cur" ) )
        [[ $COMPREPLY == *= ]] && compopt -o nospace
    fi
} &&
complete -F _configure configure

# Local variables:
# mode: shell-script
# sh-basic-offset: 4
# sh-indent-comment: t
# indent-tabs-mode: nil
# End:
# ex: ts=4 sw=4 et filetype=sh