[OpenIndiana-discuss] libjpeg-turbo transition status

[Aurélien Larcher]

On Wed, Mar 8, 2017 at 11:19 PM, Tim Mooney <Tim.Mooney at ndsu.edu> wrote:

> In regard to: [OpenIndiana-discuss] libjpeg-turbo transition status,...:
>
> I added a page on the Wiki to track the progress:
>>
>> https://wiki.openindiana.org/oi/JPEG+8
>>
>
> Good, that will be easier to update as various people tackle individual
> components.
>
> Would you like me to add a column to that table for the URL for the
> github pull request, or is that not useful?
>

Yes that would be great! I usually do it but have no time right now.
(like
https://wiki.openindiana.org/oi/Migration+of+consolidations+to+oi-userland)


>
> Whenever one of the packages listed is updated, it should be recompiled
>> against the new default library.
>>
>
> For anyone that's interested in tackling one of these, I've primarily
> been relying on the following documents:
>
> 1) http://docs.openindiana.org/dev/userland/
>
> 2) The older wiki doc that covers a lot of the same stuff:
>
> https://wiki.openindiana.org/oi/Building+with+oi-userland
>
> but only for some of the additional information (like the
> REQUIRED_PACKAGES target) that hasn't yet made it into the userland doc
> from #1.
>
> 3) Aurélien's git workflow notes:
>
> http://hub.openindiana.ninja/?q=content/git-workflow
>
> When everything goes right with the pull request, you only need the info
> from the userland doc (#1, above), it's only when there's something
> "strange" to do with git that I've used info from document #3.
>
>
> Once you understand the development/git/github workflow, the *general*
> process for these components is
>
> 1) be sure you bump the number for the COMPONENT_REVISION (should be in
> the Makefile)
>
> 2) add whatever flags are necessary to get the component to compile
> and link with libjpeg8-turbo.  For the configure-based packages I've
> tried so far, that's something like
>
> CFLAGS           += $(JPEG_CPPFLAGS) $(JPEG_CFLAGS)
> CXXFLAGS         += $(JPEG_CPPFLAGS) $(JPEG_CXXFLAGS)
> LDFLAGS          += $(JPEG_LDFLAGS)
>
> There will definitely be components where that won't work or won't be
> enough, but it's the first thing to try for configure-based ones.
>
> 3) build, test, install on your devel box, and ensure that "ldd" shows
> that the binaries from your updated package are linked against
> libjpeg8-turbo, rather than just libjpeg.
>
> 4) update the REQUIRED_PACKAGES setting in the Makefile to specify that
> image/library/$(JPEG_IMPLEM) is a dependency.  If there are no
> REQUIRED_PACKAGES lines in the Makefile, read the wiki doc (#2) about
> the REQUIRED_PACKAGES Makefile target.
>
> 5) submit your pull request as documented in the development workflow
> and wait for feedback.  Early pull requests from me, like this one:
>
>         https://github.com/OpenIndiana/oi-userland/pull/2797
>
> generated more feedback and I needed to make more changes based on
> feedback Alexander & Aurélien's comments.  Later pull requests, like
> this one:
>
>         https://github.com/OpenIndiana/oi-userland/pull/2832
>
> went more smoothly.
>
> Only very few of the components have been completed so far and I'm
> certainly not getting to them very quickly, so the more people that give
> it a try, the faster this will be completed.
>
> Tim
> --
> Tim Mooney                                             Tim.Mooney at ndsu.edu
> Enterprise Computing & Infrastructure                  701-231-1076
> (Voice)
> Room 242-J6, Quentin Burdick Building                  701-231-8541 (Fax)
> North Dakota State University, Fargo, ND 58105-5164
>
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