[yocto] Remove libjpeg.so (default built even in core-image-minimal) from the rootfs when build yocto

[Petter Mabäcker]

My guess would be that the package name to exclude is libjpeg-turbo
. But it seems to provide jpeg-tools as well, so that can be good to
have in mind when elaborating with excluding this package. 

BR Petter


2018-01-16 07:46 skrev Nguyễn Thanh Vũ: 

> I know that I need to use
PACKAGE_EXCLUDE, but I have no idea what is the package name of libjpeg
... Any clue? 
> 
> On Tue, Jan 16, 2018 at 1:40 PM, Petter Mabäcker
<petter at technux.se> wrote:
> 
>> 2018-01-16 05:28 skrev Nguyễn Thanh Vũ:

>> 
>>> I have statically linked the libjpeg of my own to the exe file,
so I do not need the libjpeg.so default built in the /lib of rootfs. How
can I modify or specify in the local.conf file so that I can remove that
component? It takes quite a lot of space. 
>>> 
>>> Thank you.
>> 
>> Hi
Nguyễn, 
>> 
>> If you want (and no dependencies dissallow it), you can
remove the entire package providing libjpeg.so from being installed with
PACKAGE_EXCLUDE
(http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#var-PACKAGE_EXCLUDE
[2]). 
>> 
>> If that`s not working you can for example use
ROOTFS_POSTPROCESS_COMMAND
(http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#var-ROOTFS_POSTPROCESS_COMMAND
[3]). However that will require more work then just update a line in
local.conf. 
>> 
>> If you want to try it out you can simply append the
image recipe in a custom layer with below. 
>> 
>>
my_postprocess_function() {
>> rm -f
${IMAGE_ROOTFS}/path/to/libjpeg.so
>> }
>> ROOTFS_POSTPROCESS_COMMAND +=
"my_postprocess_function; "
>> 
>> BR Petter 
>> 
>> Petter Mabäcker
>>

>> Technux <petter at technux.se>
>> www.technux.se [1]



Links:
------
[1] http://www.technux.se
[2]
http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#var-PACKAGE_EXCLUDE
[3]
http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#var-ROOTFS_POSTPROCESS_COMMAND
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