Applies to prior Makefile.am changesets pulled from ntp-stable,
where there is no ChangeLog entry as no tarball rolled with the bug.
bk: 4b3aeb70xTnepey7jfLRVIHLnEwE2Q
+* [Bug 1446] 4.2.7p6 requires autogen, missing ntpd.1, *.texi, *.menu.
(4.2.7p6) 2009/12/28 Released by Harlan Stenn <stenn@ntp.org>
* [Bug 1443] Remove unnecessary dependencies on ntp_io.h
* [Bug 1442] Move Windows functions into libntp files