build: Remove ChangeLogs

Generate ChangeLog files at "make dist" time, using
gitlog-to-changelog.  We still keep ChangeLog files under "po" and
"intl" directories, since those files are copied as part of gettext
infrastructure and it is still meaningful to have them there.
* .gitignore: Add ChangeLog files.
* Admin/release-steps: Remove mention of running update-changelog
script.
* Admin/update-changelog: Remove.
* Makefile.am (gen-ChangeLog): New rule.
* autogen.sh: Copy gitlog-to-changelog from gnulib.  Create empty
ChangeLog files to suppress Automake errors.
* gettext-tools/doc/Makefile.am (EXTRA_DIST): Remove ChangeLog.0.
* gettext-tools/man/Makefile.am (EXTRA_DIST): Remove ChangeLog.0.
* gettext-tools/src/Makefile.am (EXTRA_DIST): Remove ChangeLog.0.
* gettext-tools/tests/Makefile.am (EXTRA_DIST): Remove ChangeLog.0.
* gnulib-local/Makefile.am (EXTRA_DIST): Remove ChangeLog files.
* */ChangeLog: Rename to ChangeLog.0 or ChangeLog.1.
* HACKING: Add brief guideline to submit patches.

1 files changed, 23 insertions, 0 deletions

diff --git a/autogen.sh b/autogen.sh
index 3af53f2..ca0468a 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -377,6 +377,7 @@ if ! $skip_gnulib; then
     # Import build tools.  We use --copy-file to avoid directory creation.
     $GNULIB_TOOL --copy-file tests/init.sh gettext-tools || exit $?
     $GNULIB_TOOL --copy-file build-aux/git-version-gen || exit $?
+    $GNULIB_TOOL --copy-file build-aux/gitlog-to-changelog || exit $?
   fi
 fi
 
@@ -414,6 +415,28 @@ if ! test -f gettext-tools/misc/archive.dir.tar; then
   test $retval -eq 0 || exit $retval
 fi
 
+# Automake requires that ChangeLog exist.
+for dir in . gettext-runtime gettext-runtime/libasprintf \
+           gettext-tools gettext-tools/examples; do
+  cat > "$dir/ChangeLog" <<\EOF
+No more ChangeLog files
+========================
+Do not modify any of the ChangeLog files in gettext.  Starting on
+October 14th, 2015 we put changelog information only in the git commit
+log, and generate a top-level ChangeLog file from logs at "make dist"
+time.
+
+This rule doesn't apply to the ChangeLog files under "intl" and "po"
+directories, because those files are distributed as part of gettext
+infrastructure files pulled with the autopoint program.
+
+Local Variables:
+buffer-read-only: t
+mode: text
+End:
+EOF
+done
+
 # Generate configure script in each subdirectories.
 (cd gettext-runtime/libasprintf
  echo "$0: generating configure in gettext-runtime/libasprintf..."