[Mesa-dev] [PATCH 1/2] build libgallium shared by default.

[Andreas Boll]

2013/3/19 Johannes Obermayr <johannesobermayr at gmx.de>:
> Am Montag, 18. März 2013, 15:38:31 schrieb Maarten Lankhorst:
>> This is one of the 2 patches used in ubuntu for decreasing size of mesa build.
>>
>> The other one is more hacky, and links libmesagallium into libgallium,
>> and then links libgallium against libdricore too for minimal duplication.
>>
>
> I am against both patches:
>
> 1. libgallium shared in this version causes duplicate symbols for depending targets if using static LLVM libs and generally links to much LLVM components/libs
>
> 2. libmesagallium shared in a right implementation unconditionally depends on shared libglapi and shared libgallium to avoid duplicate symbol for depending targets
>
> 3. It is not "-no-undefined" but "-Wl,--no-undefined" to show missing symbols (and currently there are a lot of them in Mesa) ...

This is because libtool is broken.

>
> 4. I have worked to target issues of 1. to 3. in a bottom-up series since December while splitting mesa into libmesacore, libmesadri and libmesagallium to reduce binary sizes as much as possible for distributions

Hi Johannes,

any chance you could continue the work on shared libs?
We all have the same goals, reduce binary sizes, fix undefined
symbols, reduce the number of build configurations, support for make
dist and make distcheck
- long story short improve mesa's build system.
This time we have more time until the next mesa release to work out all issues.

Andreas.

>
> If 4. will be finished right this patch should become obsolete:
> http://cgit.freedesktop.org/mesa/mesa/commit/?id=cf69a591e1ad16b590c9ae2eba0da6fa6c4fc741
>
> And also most of the C++ linker forces will become obsolete.
>
> But pushing things like
> http://cgit.freedesktop.org/mesa/mesa/commit/?id=2506b035031d6022fec0465bffac8eedd43de0f9
> without saying in which cases it is required (e. g. not for me) doesn't make it easier to fulfill less memory consumption ...
>
>
> Johannes
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