autoconf 2.59a-7 (amd64 binary) in ubuntu dapper

automatic configure script builder
 The standard for FSF source packages. This is only useful if you
 write your own programs or if you extensively modify other people's
 programs.
 .
 For an extensive library of additional Autoconf macros, install the
 `autoconf-archive' package. For a book that explains how to use
 Autoconf, Automake, and Libtool in conjunction, install the
 `autobook' package.
 .
 This version of autoconf is not compatible with scripts meant for
 Autoconf 2.13 or earlier. If you need support for such scripts,
 you must also install the autoconf2.13 package.