+PATH="/usr/pack/automake-1.11-to/amd64-linux-debian3.1/:/usr/pack/automake-1.11-to/amd64-linux-ubuntu8.04/bin:$PATH"
+export PATH
+
+vcheck (){
+ perl <<PERL
+@t = split /\./, "$1";
+@v = map { int \$_ } split /\./, (split /\s+/, \`$2\`)[3];
+print "$2 = ", (join ".",@v), " (expecting $1 or later)\n";
+\$v = \$t[0]*1000000+\$t[1]*1000+\$t[2] <= \$v[0]*1000000+\$v[1]*1000+\$v[2];
+exit \$v
+PERL
+}
+
+ERROR=0
+LIBTOOL_VER="1.5.6"
+AUTOMAKE_VER="1.9.2"
+AUTOCONF_VER="2.59"
+
+if vcheck $LIBTOOL_VER "libtool --version"