- GNU autotools (automake >=1.10, autoconf >=2.50, autoheader >=2.50)
(make sure your system wide "automake" points to a recent version!)
-- GNU Libtool
+- GNU Libtool >=2.2
(for more information, go to http://www.gnu.org/software/autoconf/)
- Flex >=2.5.35.
- Bison >=2.4.