+
+dnl for the linker to understand which version the library is compatible with
+dnl we must keep a separate library version cout of the format c:r:a if any
+dnl functionality is changed do c++ prior to release
+dnl if only implementation changed but all interfaces are kept, do r++
+dnl when only functionality was added, do a++ if any functionality was
+dnl removed to a=0.
+dnl
+dnl see http://sourceware.org/autobook/autobook/autobook_91.html
+dnl
+LIBVERS=3:0:1
+AC_SUBST(LIBVERS)
+