generate ChangeLog from git logs into distribution tarball

No longer maintain a version-controlled ChangeLog file, but do
continue to include a ChangeLog file in distribution tarball.
* Makefile.am (gen-ChangeLog): New rule.
(dist-hook): Depend on it.
(EXTRA_DIST): Add ChangeLog-old.
* bootstrap (modules): Add gitlog-to-changelog.
* ChangeLog: Remove file.  Renamed to...
* ChangeLog-old: ...this.  New file.
* autogen.sh: Touch ChangeLog, to ensure it exists.  For automake.

1 files changed, 1 insertions, 0 deletions

diff --git a/bootstrap b/bootstrap
index b0de3dfa3..0754d026d 100755
--- a/bootstrap
+++ b/bootstrap
@@ -78,6 +78,7 @@ getaddrinfo
 gethostname
 getpass
 gettext
+gitlog-to-changelog
 gnumakefile
 inet_pton
 ioctl