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ref-manual: Inserted Migration 2.7 section.
(From yocto-docs rev: 238ddd62995420741c2b97ccfa7d2c533b72837c) Signed-off-by: Scott Rifenbark <srifenbark@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Scott Rifenbark
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Richard Purdie
Richard Purdie
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@@ -6325,6 +6325,230 @@ id=f4d4f99cfbc2396e49c1613a7d237b9e57f06f81'>commit message</ulink>.
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</para>
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</section>
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</section>
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<section id='moving-to-the-yocto-project-2.7-release'>
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<title>Moving to the Yocto Project 2.7 Release</title>
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<para>
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This section provides migration information for moving to the
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Yocto Project 2.7 Release from the prior release.
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</para>
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<section id='migration-2.7-bitbake-changes'>
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<title>BitBake Changes</title>
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<para>
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The following changes have been made to BitBake:
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<itemizedlist>
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<listitem><para>
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The BBHandler now checks tab indentation for Python code.
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</para></listitem>
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<listitem><para>
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Bitbake now checks
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<link linkend='var-BBFILE_COLLECTIONS'><filename>BBFILE_COLLECTIONS</filename></link>
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for duplicate entries and triggers an error if any are
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found.
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</para></listitem>
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</itemizedlist>
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</para>
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</section>
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<section id='migration-2.7-qemu-native-splits-system-and-user-mode-parts'>
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<title><filename>qemu-native</filename> Splits the System and User-Mode Parts</title>
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<para>
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The system and user-mode parts of <filename>qemu-native</filename>
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are now split.
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<filename>qemu-native</filename> provides the user-mode components
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and <filename>qemu-system-native</filename> provides the system
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components.
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If you have recipes that depend on QEMU's system emulation
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functionality at build time, they should now depend upon
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<filename>qemu-system-native</filename> instead of
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<filename>qemu-native</filename>.
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</para>
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</section>
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<section id='migration-2.7-upstream-tracking.inc-removed'>
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<title>The <filename>upstream-tracking.inc</filename> File Has Been Removed</title>
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<para>
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The previously deprecated <filename>upstream-tracking.inc</filename>
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file is now removed.
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Any <filename>UPSTREAM_TRACKING*</filename> variables are now set
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in the corresponding recipes instead.
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</para>
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<para>
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Remove any references you have to the
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<filename>upstream-tracking.inc</filename> file in your
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configuration.
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</para>
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</section>
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<section id='migration-2.7-distro-features-libc-removed'>
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<title>The <filename>DISTRO_FEATURES_LIBC</filename> Variable Has Been Removed</title>
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<para>
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The <filename>DISTRO_FEATURES_LIBC</filename> variable is no
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longer used.
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The ability to configure glibc using kconfig has been removed
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for quite some time making the <filename>libc-*</filename> features
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set no longer effective.
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</para>
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<para>
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Remove any references you have to
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<filename>DISTRO_FEATURES_LIBC</filename> in your own layers.
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</para>
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</section>
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<section id='migration-2.7-packaging-changes'>
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<title>Packaging Changes</title>
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<para>
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This section provides information about packaging changes.
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<itemizedlist>
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<listitem><para>
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<filename>bind</filename>: The
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<filename>nsupdate</filename> binary has been moved to
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the <filename>bind-utils</filename> package.
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</para></listitem>
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<listitem><para>
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Debug split: The default debug split has been changed to
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create separate source packages.
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</para></listitem>
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<listitem><para>
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<filename>util-linux</filename>:
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<itemizedlist>
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<listitem><para>
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<filename>blkdiscard</filename> has been split out
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into own package.
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</para></listitem>
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<listitem><para>
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one package per binary (pt 1:
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<filename>base_sbindir</filename>)
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</para></listitem>
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<listitem><para>
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one package per binary (pt 2:
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<filename>base_bindir</filename>)
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</para></listitem>
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<listitem><para>
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one package per binary (pt 3:
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<filename>sbindir</filename>)
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</para></listitem>
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<listitem><para>
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one package per binary (pt 4:
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<filename>bindir</filename>)
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</para></listitem>
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<listitem><para>
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<filename>/etc/default/mountall</filename> has
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moved into the -mount sub-package.
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</para></listitem>
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</itemizedlist>
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</para></listitem>
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<listitem><para>
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<filename>netbase/base-files</filename>:
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<filename>/etc/hosts</filename> has moved from
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<filename>netbase</filename> to
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<filename>base-files</filename>.
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</para></listitem>
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<listitem><para>
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<filename>tzdata</filename>: The main package has been
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converted to an empty meta package that pulls in all
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<filename>tzdata</filename> packages by default.
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</para></listitem>
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<listitem><para>
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<filename>lrzsz</filename>: This package has been removed
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from <filename>packagegroup-self-hosted</filename> and
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<filename>packagegroup-core-tools-testapps</filename>.
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The X/Y/ZModem support is less likely to be needed on
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modern systems.
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If you are relying on these packagegroups to include the
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<filename>lrzsz</filename> package in your image, you
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now need to explicitly add the package.
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</para></listitem>
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</itemizedlist>
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</para>
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</section>
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<section id='migration-2.7-removed-recipes'>
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<title>Removed Recipes</title>
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<para>
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The following recipes have been removed:
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<literallayout class='monospaced'>
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gcc: Drop version 7.3 recipes. Version 8.3 now remains.
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linux-yocto: Drop versions 4.14 and 4.18 recipes. Versions 4.19 and 5.0 remain.
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go: Drop version 1.9 recipes. Versions 1.11 and 1.12 remain.
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xvideo-tests: Became obsolete.
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libart-lgpl: Became obsolete.
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gtk-icon-utils-native: These tools are now provided by gtk+3-native
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gcc-cross-initial: No longer needed. gcc-cross/gcc-crosssdk are now used.
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gcc-crosssdk-initial: No longer needed. gcc-cross/gcc-crosssdk are now used.
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glibc-initial: Removed because the benefits of having it for site_config are
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currently outweighed by the cost of building the recipe.
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</literallayout>
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</para>
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</section>
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<section id='migration-2.7-removed-classes'>
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<title>Removed Classes</title>
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<para>
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The following classes have been removed:
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<literallayout class='monospaced'>
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distutils-tools: This class was never used.
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bugzilla.bbclass: Became obsolete.
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distrodata: This functionally has been replaced by a more modern
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tinfoil-based implementation.
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</literallayout>
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</para>
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</section>
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<section id='migration-2.7-miscellaneous-changes'>
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<title>Miscellaneous Changes</title>
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<para>
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The following miscellaneous changes occurred:
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<itemizedlist>
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<listitem><para>
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The <filename>distro</filename> subdirectory of the Poky
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repository has been removed from the top-level
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<filename>scripts</filename> directory.
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</para></listitem>
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<listitem><para>
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Perl added a version that builds recipes using
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<filename>perl-cross</filename>
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</para></listitem>
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<listitem><para>
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<filename>arm-tunes</filename>: Removed the "-march"
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option if mcpu is already added.
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</para></listitem>
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<listitem><para>
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<filename>update-alternatives</filename>: Convert file
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renames to
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<link linkend='var-PACKAGE_PREPROCESS_FUNCS'><filename>PACKAGE_PREPROCESS_FUNCS</filename></link>
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</para></listitem>
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<listitem><para>
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<filename>base/pixbufcache</filename>: Obsolete
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<filename>sstatecompletions</filename> code has been
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removed.
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</para></listitem>
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<listitem><para>
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<link linkend='ref-classes-native'><filename>native</filename></link>
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class:
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<link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
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handling has been enabled.
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</para></listitem>
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<listitem><para>
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<filename>inetutils</filename>: This recipe has rsh
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disabled.
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</para></listitem>
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</itemizedlist>
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</para>
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</section>
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</section>
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</chapter>
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<!--
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vim: expandtab tw=80 ts=4
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