#!/bin/bash

root_path="${1}"
if [ -z "${root_path}" ]
then
    base_name="`echo ${0} | sed 's|[^/]*$||'`"
    # Assume the script directory is buildutils/
    root_path="${base_name}/../"
fi
cat "${root_path}/configure.ac" | awk '/^ *AC_INIT/ {
    ac_init_line = $0
    while (!match($0,/\)/))
    {
        getline
        ac_init_line = ac_init_line $0
    }
    sub(/AC_INIT *\([ \t]*\[/,"",ac_init_line)
    sub(/\][ \t]*\) *$/,"",ac_init_line)
    split(ac_init_line,info,/\][ \t]*,[ \t]*\[/)
    name=info[1]
    version=info[2]
    email=info[3]
    print version
}'