autoconf213: autoconf 2.13 (automatically configure scripts)  
autoconf213:  
autoconf213: The Autoconf package contains programs for producing shell scripts 
autoconf213: that can automatically configure source code.  
autoconf213: 
autoconf213: This is an older version of autoconf but still commonly used
autoconf213: and required by many build systems (e.g. palemoon browser).
autoconf213: It can co-exist with newer versions of autoconf.
autoconf213: 
autoconf213: This is a patched version maintained by Thomas Dickey.
autoconf213: http://invisible-island.net/autoconf/autoconf.html

