185 lines
7.3 KiB
Text
185 lines
7.3 KiB
Text
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" [
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<!ENTITY base CDATA "../..">
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<!ENTITY date "$FreeBSD$">
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<!ENTITY title "FreeBSD GNOME Project: How To Make a Port">
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<!ENTITY % gnomeincludes SYSTEM "../includes.sgml"> %gnomeincludes;
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<!ENTITY % includes SYSTEM "../../includes.sgml"> %includes;
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]>
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<html>
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&header;
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<table border="0">
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<tr>
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<td>
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<p>This document assumes that you already know how port system works,
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and therefore only provides GNOME-specific hints and tips. General
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instructions can be found in the
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<a href="http://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/index.html">FreeBSD Porter's Handbook</a>.
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</p>
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<h2>GNOME Makefile Macros</h2>
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<p>For ports that <i>require</i> GNOME, you should define the following
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in your port's Makefile:</p>
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<pre>
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USE_GNOME= yes
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USE_X_PREFIX= yes
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</pre>
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<p>These will take care of the install prefix and requiring all the
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core GNOME dependencies. If your port can use GNOME, but it isn't
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required, you can define the following in your Makefile:</p>
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<pre>
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WANT_GNOME= yes
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</pre>
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<p>If the user has defined <tt>WITH_GNOME</tt> in their
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<tt>/etc/make.conf</tt> then GNOME components will be built.
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Other useful GNOME-related macros that can be define in your port's
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Makefile include:</p>
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<!-- Begin GNOME-related Makefile macros -->
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<ul>
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<li><p><tt>USE_GLIB (WANT_GLIB)</tt> : The application requires
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(can use) Glib. Defining <tt>USE_GNOME</tt> or <tt>USE_GTK</tt>
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takes care of this option automatically.</p></li>
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<li><p><tt>USE_GTK (WANT_GTK)</tt> : The application may not be
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GNOME-compliant, but requires GTK+ widgets. This will take care of
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those dependencies. Note, this option should <b>not</b> be defined
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if <tt>USE_GNOME</tt> is defined.</p></li>
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<li><p><tt>USE_ESOUND (WANT_ESOUND)</tt> : The application requires
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(can use) esound. Normally, esound support is added by specifying
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<tt>USE_GNOME</tt>.</p></li>
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<li><p><tt>USE_IMLIB (WANT_IMLIB)</tt> : The application requires
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(can use) the Imlib image library. This is not needed if
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<tt>USE_GNOME</tt> is defined.</p></li>
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<li><p><tt>USE_GNOMELIBS (WANT_GNOMELIBS)</tt> : The application
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requires (can use) GNOME libraries. This does not import as many
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dependencies as <tt>USE_GNOME</tt> and should be used for
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applications that use GNOME, but do not need the GNOME Control
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Center, the GNOME capplet library, or anything from the GNOME
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Core.</p></li>
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<li><p><tt>USE_GNOMECTRL (WANT_GNOMECTRL)</tt> : The application
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requires (can use) all the GNOME libraries and the GNOME Control
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Center, but does not use anything from GNOME Core. This option is
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usually used for backend APIs.</p></li>
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</ul>
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<p>If your port can optionally use GNOME, you must set
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<tt>WANT_GNOME= yes</tt> in your Makefile, then check to see if
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<tt>HAVE_GNOME</tt> is set. Since this is a conditional
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evaluation, you need to stick it between <tt>bsd.port.pre.mk</tt>
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and <tt>bsd.port.post.mk</tt>. For example:</p>
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<pre>
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WANT_GNOME= yes
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.include <bsd.port.pre.mk>
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.if defined(HAVE_GNOME)
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USE_GNOME= yes
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CONFIGURE_ARGS+= --with-gnome
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.else
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CONFIGURE_ARGS+= --without-gnome
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.endif
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.include <bsd.port.post.mk>
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</pre>
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<p>What happens here is <tt>WANT_GNOME</tt> tells the ports system
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to check for the existence of <tt>gnome-config</tt>. If it
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exists, <tt>HAVE_GNOME</tt> is set. If not, <tt>HAVE_GNOME</tt>
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remains unset. By setting <tt>USE_GNOME</tt> after checking for
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<tt>HAVE_GNOME</tt> the port will register all the GNOME
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dependencies properly.</p>
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<p>When building GNOME ports, remember that many applications
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require shared directories in <tt>${PREFIX}/share/gnome</tt>. Ports
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should be constructed in a way such that files placed in these
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directories are removed before the package which created the
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directories (i.e. the package that has an appropriate
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<tt>@dirrm</tt> in its pkg-plist). For GNOME, the principle
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parent port is <tt>gnomecore</tt>. If your port incudes
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<tt>USE_GNOME= yes</tt> you should be fine. If you're
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uncertain if you need to require any other packages, you can use
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the script <tt>${PORTSDIR}/Tools/scripts/gnomedepends.py</tt>
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to examine your port's pkg-plist.</p>
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<p>To see a list of what packages your port will actually require,
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use the command <tt>make package-depends</tt>.</p>
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<!-- End GNOME-related Makefile macros -->
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<!-- Begine GNOME I18N -->
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<h2>GNOME Internationalization</h2>
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<p>GNOME relies on the <tt>gettext</tt> port to do
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internationalization (I18N). FreeBSD currently supports two versions
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of <tt>gettext</tt>: 0.10.35 and 0.10.40. Most ports can use
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0.10.35. However, if, when compiling your port, you get an error
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building the .po translation files similar to the following you will
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need to use the newer version of <tt>gettext</tt>:</p>
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<pre>
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/usr/local/bin/msgfmt -o zh_TW.mo zh_TW.po
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zh_TW.po:255: end-of-line within string
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zh_TW.po:912: illegal control sequence
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zh_TW.po:2806: end-of-line within string
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zh_TW.po:2856: end-of-line within string
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zh_TW.po:2879: illegal control sequence
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zh_TW.po:2982: end-of-line within string
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found 6 fatal errors
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</pre>
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<p>To use the newer <tt>gettext</tt>, add the following to your port's
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Makefile:</p>
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<pre>
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BUILD_DEPENDS= msgfmt-new:${PORTSDIR}/devel/gettext-devel
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CONFIGURE_ENV+= MSGFMT=${LOCALBASE}/bin/msgfmt-new \
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XGETTEXT=${LOCALBASE}/bin/xgettext-new
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</pre>
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<p>When installing GNOME applications, make sure the translation
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files are put in <tt>/usr/X11R6/share/locale</tt> and
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not <tt>/usr/X11R6/share/gnome/locale</tt>. To do this, add the
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following to your port's Makefile's <tt>pre-patch:</tt> section:</p>
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<pre>
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pre-patch:
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@find ${WRKSRC} -name "Makefile.in*" | xargs ${PERL} -pi -e \
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's|\$\(datadir\)/gnome/|\$\(datadir\)/|g ; \
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s|\$\(datadir\)/locale|\$\(prefix\)/share/locale|g'
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</pre>
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<p>Also, make sure the translation files are installed as .mo files and
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not .gmo files. To do this, you can generally use this
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<a href="../patches/patch-po::Makefile.in.in">patch</a>.</p>
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<p>If your port depends on iconv, make sure you substitute all
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instances of <tt>iconv.h</tt> with <tt>giconv.h</tt>, and all
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instances of <tt>-liconv</tt> with <tt>-lgiconv</tt>.</p>
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<!-- End GNOME I18N -->
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<!-- Begin GNOME libtool -->
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<h2>Libtool Issues</h2>
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<p>Most if not all GNOME applications depend on GNU's libtool. They
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also use the GNU configure system. Newer versions of libtool have
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a problem with FreeBSD's <tt>USE_LIBTOOL</tt> macro. Use of this
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macro should be avoided. Instead, set <tt>GNU_CONFIGURE= yes</tt>,
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and use the following <a href="../patches/patch-ltmain.sh">patch</a>
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to prevent the installation of .la files.</p>
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<!-- End GNOME libtool -->
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<p>The more ported applications we have, the better.</p>
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</td>
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</tr>
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</table>
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&footer;
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</body>
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</html>
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