+if [ 1.4.2 -gt `libtool --version | awk '{print $4}'` ]
+then
+ echo get a copy of GNU libtool >= 1.4.2
+ exit 1
+fi
+
+if [ 1.5 -gt `automake --version | head -1 | awk '{print $4}'` ]
+then
+ echo get a copy of GNU automake >= 1.5
+ exit 1
+fi
+
+if [ 2.52 -gt `autoconf --version | head -1 | awk '{print $4}'` ]
+then
+ echo get a copy of GNU autoconf >= 2.52
+ exit 1
+fi
+
+