We need the latest autoconf. see [16537]

extras/contrib/src/packages.mak

@@ -30,7 +30,7 @@ PERL_VERSION=5.8.8
 PERL_URL=http://ftp.funet.fi/pub/CPAN/src/perl-$(PERL_VERSION).tar.gz
 # Autoconf > 2.57 doesn't work ok on BeOS. Don't ask why.
 # we have to use a newer though, because bootstrap won't work otherwise
-AUTOCONF_VERSION=2.59
+AUTOCONF_VERSION=2.60
 AUTOCONF_URL=$(GNU)/autoconf/autoconf-$(AUTOCONF_VERSION).tar.gz
 LIBTOOL_VERSION=1.5.6
 LIBTOOL_URL=$(GNU)/libtool/libtool-$(LIBTOOL_VERSION).tar.gz