If the OS does not have libevent available as package, it can be
downloaded from http://monkey.org/~provos/libevent/
+Building from CVS
+-----------------
+
+Building PgBouncer from CVS requires that you generate the header
+and config files before you can run configure:
+
+ $ make boot
+ $ ./configure ...
+ $ make
+
+To have manpages, asciidoc 8.x and xmlto need to be installed,
+as CVS does not contain generated pages. Without those,
+manpages are skipped when building/installing.
+