+
+dnl Libtool versions
+dnl
+dnl * If any code has changed at all (i.e. bugfixes) increment revision
+dnl * If any interface has been added, removed or changed increment
+dnl current, set revision to 0
+dnl * If any interface has been added increment age
+dnl * If any interfaces have been remove set age to 0
+dnl * use lt_release if substantial things have been changed. The release can be
+dnl thought of as part of the library name. So changing the release creates
+dnl a new library.
+m4_define([lt_current], [1])
+m4_define([lt_revision], [0])
+m4_define([lt_age], [0])
+dnl we use firm major version as release
+m4_define([lt_release], [firm_major_version])
+