| Re: [platform-swt-dev] Bumping minimum version of GTK3 to 3.14in4.11 |
> I do think having a short paragraph discussing GTK3 versions in the
> target environments section would be a good idea, as there is often a
> lot confusion around this subject.
Please file a bug report (please cc me) and attach a Gerrit change for the target environments section in the plan. The repository is 'git.eclipse.org:29418/www.eclipse.org/eclipse.git' and the path is
development/plans/eclipse_project_plan_4_10.xml
Dani
From: Eric Williams <ericwill@xxxxxxxxxx>
To: platform-swt-dev@xxxxxxxxxxx
Date: 04.12.2018 16:20
Subject: Re: [platform-swt-dev] Bumping minimum version of GTK3 to 3.14in4.11
Sent by: platform-swt-dev-bounces@xxxxxxxxxxx
Hi Jonah,
On 12/4/18 5:01 AM, Jonah Graham wrote:
> Hi folks,
>
> It seems that this discussion may be partly moot anyway as 2018-12 and
> 2018-09 already require at least GTK 3.7.6, perhaps later?
>
> In July it was announced[1] that 3.0 was going to be the minimum version
> of GTK. But changes[2] in the code base before 2018-09 was released
> means that SWT does not work in (for example) GTK 3.6. The reason is
> that the change uses a method in GTK that had its internal name changed
> between GTK 3.7.4 and 3.7.6. The GTK_TYPE_TEXT_VIEW_ACCESSIBLE macro
> changed[3] the symbol used. So if you try and run Eclipse on an older
> GTK you get the following and a JVM failed to start error popup.
>
> /home/tools/local/java/Linux64/jdk8u172-b11/bin/java: symbol lookup
> error:
> /home/hall/eclipse.2018.12/eclipse/configuration/org.eclipse.osgi/456/0/.cp/libswt-pi3-gtk-4922r31.so:
> undefined symbol: gtk_text_view_accessible_get_type
>
>
> as older GTK versions the symbol was _gtk_text_view_accessible_get_type.
> (The GTK version for the above error is 3.6.2, I coincidentally came
> across it yesterday when doing a customer site visit and came across an
> old Fedora 18 machine.)
>
> Just to be clear, I am not asking for support for such old GTKs, but
> rather for the documentation/N&N[4] to specify what the minimum GTK
> really is.
I don't think the N&N is the right place to do this, as this only
announces noteworthy changes/features. The GTK3 version support can be
found in the 4.10 plan, under target environments [1]. While there is no
hard version listed there (it only says "GTK+ 3"), none of the supported
target environments have any GTK3 older than 3.20. IMO there is also no
reasonable expectation that a distribution as old as Fedora 18 would run
4.8/9/10 Eclipse.
I do think having a short paragraph discussing GTK3 versions in the
target environments section would be a good idea, as there is often a
lot confusion around this subject.
> As a related issue, the above type of failure means that the checks in
> Display.java (createDisplay) are also not working as intended because
> instead of a warning to System.out ("***WARNING: SWT requires GTK[...]")
> eclipse fails to load in OS.java's static initialization where it does
> the loadLibrary.
This is a fair point, we should really do some sort of System.err
message in the static initialization block too, please open a bug for
this and add me as CC.
1:
https://www.eclipse.org/projects/project-plan.php?planurl=http://www.eclipse.org/eclipse/development/plans/eclipse_project_plan_4_10.xml#target_environments
--
Eric Williams
Software Engineer - Eclipse/SWT Team
Red Hat
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