doc: recommendations on gettext version

Based on the bootstrap fallout in commit bb2f5640.

* doc/gnulib-tool.texi (gettextize and autopoint): Document the
choice between versions.
* DEPENDENCIES (gettext): Cover both approaches.

Signed-off-by: Eric Blake <eblake@redhat.com>

3 files changed, 48 insertions, 7 deletions

diff --git a/ChangeLog b/ChangeLog
index e202346680..95dc16fd24 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-05-08  Eric Blake  <eblake@redhat.com>
+
+	doc: recommendations on gettext version
+	* doc/gnulib-tool.texi (gettextize and autopoint): Document the
+	choice between versions.
+	* DEPENDENCIES (gettext): Cover both approaches.
+
 2012-05-08  Jim Meyering  <meyering@redhat.com>
 
 	init.sh: explain why EXEEXT support uses aliases rather than functions
diff --git a/DEPENDENCIES b/DEPENDENCIES
index 91cd6c543d..e19a37e7a7 100644
--- a/DEPENDENCIES
+++ b/DEPENDENCIES
@@ -101,8 +101,13 @@ at any time.
     ftp://ftp.gnu.org/gnu/grep/
 
 * GNU gettext.
-  + Always use the newest available gettext release, see
-    <http://www.gnu.org/software/gnulib/manual/html_node/gettextize-and-autopoint.html>.
+  + If your project wants to follow GNU Coding Standards:
+    + Always use the newest available gettext release, see
+      <http://www.gnu.org/software/gnulib/manual/html_node/gettextize-and-autopoint.html>.
+    + Use the 'gettext' module.
+  + If your project cares more about ease of development on older platforms:
+    + gettext 0.17 or newer.
+    + Use the 'gettext-h' module.
   + Recommended.
     Needed if you use modules that use internationalization (many do).
   + Homepage:
diff --git a/doc/gnulib-tool.texi b/doc/gnulib-tool.texi
index 1b025c06e6..8d0e6835ba 100644
--- a/doc/gnulib-tool.texi
+++ b/doc/gnulib-tool.texi
@@ -471,7 +471,9 @@ the copies brought in by @code{gettextize} and @code{autopoint}.  When a
 new @code{gettext} release is made, the copies of the files in Gnulib will
 be updated immediately.
 
-The solution is therefore:
+The choice of which version of gettext to require depends on the needs
+of your package.  For a package that wants to comply to GNU Coding
+Standards, the steps are:
 
 @enumerate
 @item
@@ -479,12 +481,13 @@ When you run @code{gettextize}, always use the @code{gettextize} from the
 matching GNU gettext release.  For the most recent Gnulib checkout, this is
 the newest release found on @url{http://ftp.gnu.org/gnu/gettext/}.  For an
 older Gnulib snapshot, it is the release that was the most recent release
-at the time the Gnulib snapshot was taken.  Then, after @code{gettextize},
-invoke @code{gnulib-tool}.
+at the time the Gnulib snapshot was taken.
 
 @item
-When a script of yours run @code{autopoint}, invoke @code{gnulib-tool}
-afterwards.
+After running @code{gettextize}, invoke @code{gnulib-tool} and import
+the @code{gettext} module.  Also, copy the latest version of gnulib's
+@file{build-aux/po/Makefile.in.in} to your @file{po/} directory (this
+is done for you if you use gnulib's @file{bootstrap} script).
 
 @item
 If you get an error message like
@@ -495,6 +498,32 @@ it means that a new GNU gettext release was made, and its autoconf macros
 were integrated into Gnulib and now mismatch the @file{po/} infrastructure.
 In this case, fetch and install the new GNU gettext release and run
 @code{gettextize} followed by @code{gnulib-tool}.
+@end enumerate
+
+On the other hand, if your package is not as concerned with compliance
+to the latest standards, but instead favors development on stable
+environments, the steps are:
+
+@enumerate
+@item
+Determine the oldest version of @code{gettext} that you intend to
+support during development (at this time, gnulib recommends going no
+older than version 0.17).  Run @code{autopoint} (not
+@code{gettextize}) to copy infrastructure into place (newer versions
+of gettext will install the older infrastructure that you requested).
+
+@item
+Invoke @code{gnulib-tool}, and import the @code{gettext-h} module.
+@end enumerate
+
+Regardless of which approach you used to get the infrastructure in
+place, the following steps must then be used to preserve that
+infrastructure (gnulib's @file{bootstrap} script follows these rules):
+
+@enumerate
+@item
+When a script of yours run @code{autopoint}, invoke @code{gnulib-tool}
+afterwards.
 
 @item
 When you invoke @code{autoreconf} after @code{gnulib-tool}, make sure to