mirror of
https://git.yoctoproject.org/poky
synced 2026-05-09 05:29:32 +00:00
Gratian Crisan
d2259ac280
Currently adding a font recipe to an image doesn't have enough
dependencies to cause mkfontdir-native to be included in the native
sysroot. This creates problems with the postinstall scripts for fonts
which call mkfontdir to create font index files: font.dir. The end
result is missing font.dir files in the built image and a malfunctioning
font system.
Dependencies for the relevant recipes currently look like this:
* <font.bb> [D ] -> font-util-native
[R ] -> encodings, font-util
[RN] -> font-util-native
* font-util [D ] -> encodings
[R ] -> mkfontdir, mkfontscale, encodings
[RN] -> mkfontdir-native, mkfontscale-native
* encodings [D ] -> mkfontscale-native, font-util-native
* mkfontdir [R ] -> mkfontscale
[RN] -> mkfontscale-native
* mkfontscale [D ] -> libfontenc
* libfontenc [D ] -> font-util
Where:
* D = DEPENDS
* R = RDEPENDS
* RN = RDEPENDS_class-native
* <font.bb> e.g. font-adobe-100dpi*.bb
Some details where omitted for clarity e.g. dependencies on util-macros.
I believe the intent behind the RDEPENDS_class-native chain:
* <font.bb> -> font-util-native -> mkfontdir-native
was to provide the necessary dependency on mkfontdir. However because
the native sysroot is not built from packages this RDEPENDS_class-native
chain doesn't have the desire effect (i.e. it doesn't pull in
mkfontdir-native).
Changing the RDEPENDS_class-native chain into a DEPENDS_class-native
chain is a non-starter because of the build time dependency loop it
creates:
* font-util-native -> mkfontscale-native -> libfontenc-native -> font-util-native
Having upstream remove the build time dependency of libfontenc on
font-util is also a non-starter[1] even though it does create problems
in other distributions, for example on Debian see [2], [3].
Instead add a DEPENDS on mkfontdir-native in the encodings recipe in
addition to the mkfontscale-native dependency it already contains. This
solves the missing mkfontdir in the native sysroot problem without
introducing a build dependency loop.
[1] https://bugs.freedesktop.org/show_bug.cgi?id=97631
[2] https://wiki.debian.org/CircularBuildDependencies
[3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717843
(From OE-Core rev: aa8a7b2962f9a77bdd347843c41f86dc291b783e)
Signed-off-by: Gratian Crisan <gratian.crisan@ni.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
====
Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a
reference manual which can be found at:
http://yoctoproject.org/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions
of OpenEmbedded. It is distro-less (can build a functional image with
DISTRO = "nodistro") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/
Where to Send Patches
=====================
As Poky is an integration repository (built using a tool called combo-layer),
patches against the various components should be sent to their respective
upstreams:
bitbake:
Git repository: http://git.openembedded.org/bitbake/
Mailing list: bitbake-devel@lists.openembedded.org
documentation:
Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/
Mailing list: yocto@yoctoproject.org
meta-poky, meta-yocto-bsp:
Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp)
Mailing list: poky@yoctoproject.org
Everything else should be sent to the OpenEmbedded Core mailing list. If in
doubt, check the oe-core git repository for the content you intend to modify.
Before sending, be sure the patches apply cleanly to the current oe-core git
repository.
Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix of
oe-core and poky-specific files.