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- - -
-The maintainer of a package has many responsibilities. One of them -is ensuring that the package will install easily on many platforms, -and that the magic we described earlier (see section The User's View) will work -for installers and end users. - -
-
-Of course, there are many possible ways by which GNU gettext
-might be integrated in a distribution, and this chapter does not cover
-them in all generality. Instead, it details one possible approach which
-is especially adequate for many free software distributions following GNU
-standards, or even better, Gnits standards, because GNU gettext
-is purposely for helping the internationalization of the whole GNU
-project, and as many other good free packages as possible. So, the
-maintainer's view presented here presumes that the package already has
-a `configure.in' file and uses GNU Autoconf.
-
-
-Nevertheless, GNU gettext
may surely be useful for free packages
-not following GNU standards and conventions, but the maintainers of such
-packages might have to show imagination and initiative in organizing
-their distributions so gettext
work for them in all situations.
-There are surely many, out there.
-
-
-Even if gettext
methods are now stabilizing, slight adjustments
-might be needed between successive gettext
versions, so you
-should ideally revise this chapter in subsequent releases, looking
-for changes.
-
-
-Some free software packages are distributed as tar
files which unpack
-in a single directory, these are said to be flat distributions.
-Other free software packages have a one level hierarchy of subdirectories, using
-for example a subdirectory named `doc/' for the Texinfo manual and
-man pages, another called `lib/' for holding functions meant to
-replace or complement C libraries, and a subdirectory `src/' for
-holding the proper sources for the package. These other distributions
-are said to be non-flat.
-
-
-For now, we cannot say much about flat distributions. A flat
-directory structure has the disadvantage of increasing the difficulty
-of updating to a new version of GNU gettext
. Also, if you have
-many PO files, this could somewhat pollute your single directory.
-In the GNU gettext
distribution, the `misc/' directory
-contains a shell script named `combine-sh'. That script may
-be used for combining all the C files of the `intl/' directory
-into a pair of C files (one `.c' and one `.h'). Those two
-generated files would fit more easily in a flat directory structure,
-and you will then have to add these two files to your project.
-
-
-Maybe because GNU gettext
itself has a non-flat structure,
-we have more experience with this approach, and this is what will be
-described in the remaining of this chapter. Some maintainers might
-use this as an opportunity to unflatten their package structure.
-Only later, once gained more experience adapting GNU gettext
-to flat distributions, we might add some notes about how to proceed
-in flat situations.
-
-
-There are some works which are required for using GNU gettext
-in one of your package. These works have some kind of generality
-that escape the point by point descriptions used in the remainder
-of this chapter. So, we describe them here.
-
-
m4
, GNU Autoconf and GNU
-gettext
are already installed at your site, and if not, proceed
-to do this first. If you got to install these things, beware that
-GNU m4
must be fully installed before GNU Autoconf is even
-configured.
-
-To further ease the task of a package maintainer the automake
-package was designed and implemented. GNU gettext
now uses this
-tool and the `Makefile's in the `intl/' and `po/'
-therefore know about all the goals necessary for using automake
-and `libintl' in one project.
-
-Those four packages are only needed to you, as a maintainer; the
-installers of your own package and end users do not really need any of
-GNU m4
, GNU Autoconf, GNU gettext
, or GNU automake
-for successfully installing and running your package, with messages
-properly translated. But this is not completely true if you provide
-internationalized shell scripts within your own package: GNU
-gettext
shall then be installed at the user site if the end users
-want to see the translation of shell script messages.
-
--It is worth adding here a few words about how the maintainer should -ideally behave with PO files submissions. As a maintainer, your role is -to authenticate the origin of the submission as being the representative -of the appropriate translating teams of the Translation Project (forward -the submission to `translation@iro.umontreal.ca' in case of doubt), -to ensure that the PO file format is not severely broken and does not -prevent successful installation, and for the rest, to merely to put these -PO files in `po/' for distribution. - -
--As a maintainer, you do not have to take on your shoulders the -responsibility of checking if the translations are adequate or -complete, and should avoid diving into linguistic matters. Translation -teams drive themselves and are fully responsible of their linguistic -choices for the Translation Project. Keep in mind that translator teams are not -driven by maintainers. You can help by carefully redirecting all -communications and reports from users about linguistic matters to the -appropriate translation team, or explain users how to reach or join -their team. The simplest might be to send them the `ABOUT-NLS' file. - -
--Maintainers should never ever apply PO file bug reports -themselves, short-cutting translation teams. If some translator has -difficulty to get some of her points through her team, it should not be -an issue for her to directly negotiate translations with maintainers. -Teams ought to settle their problems themselves, if any. If you, as -a maintainer, ever think there is a real problem with a team, please -never try to solve a team's problem on your own. - -
- - -gettextize
Program
-Some files are consistently and identically needed in every package
-internationalized through GNU gettext
. As a matter of
-convenience, the gettextize
program puts all these files right
-in your package. This program has the following synopsis:
-
-
-gettextize [ option... ] [ directory ] -- -
-and accepts the following options: - -
-gettext
code
-available on the system, but it might disturb some mechanism the
-maintainer is used to apply to the sources. Because running
-gettextize
is easy there shouldn't be problems with using copies.
-
-
-If directory is given, this is the top level directory of a
-package to prepare for using GNU gettext
. If not given, it
-is assumed that the current directory is the top level directory of
-such a package.
-
-
-The program gettextize
provides the following files. However,
-no existing file will be replaced unless the option --force
-(-f
) is specified.
-
-
gettextize
,
-if you have one handy. You may also fetch a more recent copy of file
-`ABOUT-NLS' from Translation Project sites, and from most GNU
-archive sites.
-
-gettext
distribution.
-(beware the double `.in' in the file name). If the `po/'
-directory already exists, it will be preserved along with the files
-it contains, and only `Makefile.in.in' will be overwritten.
-
-gettext
-distribution. Also, if option --force
(-f
) is given,
-the `intl/' directory is emptied first.
-
-
-If your site support symbolic links, gettextize
will not
-actually copy the files into your package, but establish symbolic
-links instead. This avoids duplicating the disk space needed in
-all packages. Merely using the `-h' option while creating the
-tar
archive of your distribution will resolve each link by an
-actual copy in the distribution archive. So, to insist, you really
-should use `-h' option with tar
within your dist
-goal of your main `Makefile.in'.
-
-
-It is interesting to understand that most new files for supporting
-GNU gettext
facilities in one package go in `intl/'
-and `po/' subdirectories. One distinction between these two
-directories is that `intl/' is meant to be completely identical
-in all packages using GNU gettext
, while all newly created
-files, which have to be different, go into `po/'. There is a
-common `Makefile.in.in' in `po/', because the `po/'
-directory needs its own `Makefile', and it has been designed so
-it can be identical in all packages.
-
-
-Besides files which are automatically added through gettextize
,
-there are many files needing revision for properly interacting with
-GNU gettext
. If you are closely following GNU standards for
-Makefile engineering and auto-configuration, the adaptations should
-be easier to achieve. Here is a point by point description of the
-changes needed in each.
-
-
-So, here comes a list of files, each one followed by a description of
-all alterations it needs. Many examples are taken out from the GNU
-gettext
0.10.35 distribution itself. You may indeed
-refer to the source code of the GNU gettext
package, as it
-is intended to be a good example and master implementation for using
-its own functionality.
-
-
-The `po/' directory should receive a file named -`POTFILES.in'. This file tells which files, among all program -sources, have marked strings needing translation. Here is an example -of such a file: - -
- --# List of source files containing translatable strings. -# Copyright (C) 1995 Free Software Foundation, Inc. - -# Common library files -lib/error.c -lib/getopt.c -lib/xmalloc.c - -# Package source files -src/gettextp.c -src/msgfmt.c -src/xgettext.c -- -
-Dashed comments and white lines are ignored. All other lines -list those source files containing strings marked for translation -(see section How Marks Appears in Sources), in a notation relative to the top level -of your whole distribution, rather than the location of the -`POTFILES.in' file itself. - -
- - --PACKAGE=gettext -VERSION=0.10.35 -AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE") -AC_DEFINE_UNQUOTED(VERSION, "$VERSION") -AC_SUBST(PACKAGE) -AC_SUBST(VERSION) -- -Of course, you replace `gettext' with the name of your package, -and `0.10.35' by its version numbers, exactly as they -should appear in the packaged
tar
file name of your distribution
-(`gettext-0.10.35.tar.gz', here).
-
-ALL_LINGUAS
to the white separated,
-quoted list of available languages, in a single line, like this:
-
-
--ALL_LINGUAS="de fr" -- -This example means that German and French PO files are available, so -that these languages are currently supported by your package. If you -want to further restrict, at installation time, the set of installed -languages, this should not be done by modifying
ALL_LINGUAS
in
-`configure.in', but rather by using the LINGUAS
environment
-variable (see section Magic for Installers).
-
-m4
macro for triggering internationalization
-support. Just add this line to `configure.in':
-
-
--AM_GNU_GETTEXT -- -This call is purposely simple, even if it generates a lot of configure -time checking and actions. - -
AC_OUTPUT
directive, at the end of your `configure.in'
-file, needs to be modified in two ways:
-
-
--AC_OUTPUT([existing configuration files intl/Makefile po/Makefile.in], -existing additional actions]) -- -The modification to the first argument to
AC_OUTPUT
asks
-for substitution in the `intl/' and `po/' directories.
-Note the `.in' suffix used for `po/' only. This is because
-the distributed file is really `po/Makefile.in.in'.
-
-
-If you do not have an `aclocal.m4' file in your distribution,
-the simplest is taking a copy of `aclocal.m4' from
-GNU gettext
. But to be precise, you only need macros
-AM_LC_MESSAGES
, AM_WITH_NLS
and AM_GNU_GETTEXT
,
-and AM_PATH_PROG_WITH_TEST
, which is called by AM_WITH_NLS
,
-so you may use an editor and remove macros you do not need.
-
-
-If you already have an `aclocal.m4' file, then you will have
-to merge the said macros into your `aclocal.m4'. Note that if
-you are upgrading from a previous release of GNU gettext
, you
-should most probably replace the said macros, as they usually
-change a little from one release of GNU gettext
to the next.
-Their contents may vary as we get more experience with strange systems
-out there.
-
-
-These macros check for the internationalization support functions
-and related informations. Hopefully, once stabilized, these macros
-might be integrated in the standard Autoconf set, because this
-piece of m4
code will be the same for all projects using GNU
-gettext
.
-
-
-If you do not have an `acconfig.h' file in your distribution, the
-simplest is use take a copy of `acconfig.h' from GNU
-gettext
. But to be precise, you only need the lines and comments
-for ENABLE_NLS
, HAVE_CATGETS
, HAVE_GETTEXT
and
-HAVE_LC_MESSAGES
, HAVE_STPCPY
, PACKAGE
and
-VERSION
, so you may use an editor and remove everything else. If
-you already have an `acconfig.h' file, then you should merge the
-said definitions into your `acconfig.h'.
-
-
-Here are a few modifications you need to make to your main, top-level -`Makefile.in' file. - -
- --PACKAGE = @PACKAGE@ -VERSION = @VERSION@ -- -
DISTFILES
definition, so the file gets
-distributed.
-
-SUBDIRS
in Makefile.in
for it
-to be further used in the `dist:' goal.
-
-
--SUBDIRS = doc lib @INTLSUB@ src @POSUB@ -- -that you will have to adapt to your own package. - -
-distdir = $(PACKAGE)-$(VERSION) -dist: Makefile - rm -fr $(distdir) - mkdir $(distdir) - chmod 777 $(distdir) - for file in $(DISTFILES); do \ - ln $$file $(distdir) 2>/dev/null || cp -p $$file $(distdir); \ - done - for subdir in $(SUBDIRS); do \ - mkdir $(distdir)/$$subdir || exit 1; \ - chmod 777 $(distdir)/$$subdir; \ - (cd $$subdir && $(MAKE) $@) || exit 1; \ - done - tar chozf $(distdir).tar.gz $(distdir) - rm -fr $(distdir) -- -
-Some of the modifications made in the main `Makefile.in' will -also be needed in the `Makefile.in' from your package sources, -which we assume here to be in the `src/' subdirectory. Here are -all the modifications needed in `src/Makefile.in': - -
- --PACKAGE = @PACKAGE@ -VERSION = @VERSION@ -- -
top_srcdir
-gets defined. This will serve for cpp
include files. Just add
-the line:
-
-
--top_srcdir = @top_srcdir@ -- -
subdir
as `src', later
-allowing for almost uniform `dist:' goals in all your
-`Makefile.in'. At list, the `dist:' goal below assume that
-you used:
-
-
--subdir = src -- -
@INTLLIBS@
as
-a library. An easy way to achieve this is to manage that it gets into
-LIBS
, like this:
-
-
--LIBS = @INTLLIBS@ @LIBS@ -- -In most packages internationalized with GNU
gettext
, one will
-find a directory `lib/' in which a library containing some helper
-functions will be build. (You need at least the few functions which the
-GNU gettext
Library itself needs.) However some of the functions
-in the `lib/' also give messages to the user which of course should be
-translated, too. Taking care of this it is not enough to place the support
-library (say `libsupport.a') just between the @INTLLIBS@
-and @LIBS@
in the above example. Instead one has to write this:
-
-
--LIBS = ../lib/libsupport.a @INTLLIBS@ ../lib/libsupport.a @LIBS@ -- -
-distdir = ../$(PACKAGE)-$(VERSION)/$(subdir) -dist: Makefile $(DISTFILES) - for file in $(DISTFILES); do \ - ln $$file $(distdir) 2>/dev/null || cp -p $$file $(distdir); \ - done -- -
-
Go to the first, previous, next, last section, table of contents. - -