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[platform-swt-dev] Re: platform-swt-dev Digest, Vol 41, Issue 22
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Silenio,
Thanks for your prompt answer. I needed a bit of time to bring our macosx
SWT build procedure in sync with the one outlined at
http://www.eclipse.org/swt/jnigen.php
Before we used the make_macosx.mak file that comes with macosx SWT. The
produced binaries are identical however, so the problem lies somewhere else.
I should emphasize that the problem is PPC specific, i.e. the libswt-pi-
carbon-xxx.jnilib fails to start on PPC machines running the latest version
of Tiger. We are not using any Leopard specific API; we use
GetDataBrowserItems, GetHandleSize, HLock, HUnlock, and DisposeHandle - all
methods you guys already use. That's why we suspected that there's something
in the way we [re]build the library that cases it to fail on PPC macs. Now
that we follow the http://www.eclipse.org/swt/jnigen.php procedure that the
SWT team uses as well, it gets even less obvious what the problem might be.
If you think it might be of use, I could send you the exact changes we've
made.
It was quite an effort to get things to compile all the way through on mac
os x. We used the latest versions of the various libraries and tools
involved. I imagine you have the specifics e.g. recommended versions of
those tools and libraries, would you be kind enough to share them e.g.
should we build on Tiger vs. Leopard, do we need a specific version of
Xcode, specific version of Mac OS X SDKs, etc.
I'd think that's something that'd be of general usefulness and merits a
place on http://www.eclipse.org/swt/jnigen.php.
Unfortunately, and somewhat ironically, we just discovered that our Windows
[re]build of the win32 swt library (swt-win32-3448.dll) fails to load on XP.
Nothing changed in the way we build it using make_win32.mak, we upgraded the
swt source from 3.4 M4 to the official 3.4 release. We now get and SWTError
from the CoolBar saying ~'Item not found'. The same build runs fine on
Vista. I wonder if a specific version of the Windows Common Controls is
required, yet not enforced by the build procedure?
Would you be kind enough to send us the recommended versions of the
tools/SDKs/libraries required for building the Windows SWT with the windows
build as well?
Thanks,
Yolian
On Mon, 21 Jul 2008 12:00:12 -0400 (EDT), platform-swt-dev-request wrote
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> 1. Re: libswt-pi-carbon-xxx.jnilib rebult on Leopard Intel
> doesn't work on Tiger PPC (Silenio Quarti)
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 21 Jul 2008 10:22:27 -0400
> From: Silenio Quarti <Silenio_Quarti@xxxxxxxxxx>
> Subject: Re: [platform-swt-dev] libswt-pi-carbon-xxx.jnilib rebult on
> Leopard Intel doesn't work on Tiger PPC
> To: "Eclipse Platform SWT component developers list."
> <platform-swt-dev@xxxxxxxxxxx>
> Message-ID:
> <OF0343520C.32971880-ON8525748D.004E1194-
8525748D.004ECC14@xxxxxxxxxx>
> Content-Type: text/plain; charset="us-ascii"
>
> What function are you trying to use? If the function is only
> available in Leopard, you have to load it dynamically and only call
> it using a version check. Use the JNIGeneratorAppUI tool from
> org.eclipse.swt.tools project to mark the function dynamic and
> generate the source of "os.c". See this page for some instructions:
>
> http://www.eclipse.org/swt/jnigen.php
>
> Silenio
>
> "Yolian Ignatov" <yolian@xxxxxxxxxxxx>
> Sent by: platform-swt-dev-bounces@xxxxxxxxxxx
> 07/18/2008 12:55 PM
> Please respond to
> "Eclipse Platform SWT component developers list."
> <platform-swt-dev@xxxxxxxxxxx>
>
> To
> platform-swt-dev@xxxxxxxxxxx
> cc
>
> Subject
> [platform-swt-dev] libswt-pi-carbon-xxx.jnilib rebult on Leopard
> Intel doesn't work on Tiger PPC
>
> In the context of the Eclipse plug-in org.eclipse.swt.carbon.macosx,
> I need to define a new native function in
> org.eclipse.swt.internal.carbon.OS
>
> which will work on DataBrowser and which I will use then in
> org.eclipse.swt.widgets.Tree.
>
> 1. I import the mentioned plug-in as source in my Eclipse workspace.
>
> 2. I declare my native function in
> org.eclipse.swt.internal.carbon.OS.
>
> 3. I provide the implementation and the other details in the
> respective os*.{c,h} files just like the other functions
> officially-defined functions.
>
> 4. Then I rebuild libswt-pi-carbon-xxx.jnilib on Leopard with Xcode
> 3.0 in the following way:
> 4.1. I change into the root of the org.eclipse.swt.carbon.macosx
> plug-in source tree in Terminal.
> 4.2. I execute "export MACOSX_DEPLOYMENT_TARGET=10.3".
> 4.3. Then I run "make -f make_macosx.mak
> libswt-pi-carbon-3448.jnilib" (the 3448 really depends on the SWT
> version with which I'm working).
>
> The resulting library and the added function work as expected on
> Leopard Intel and Tiger Intel. It's part of an RCP product.
>
> Unfortunately, another person trying to use the modified library on
> Tiger PPC (i.e. run the RCP product I provide) reports that it
> doesn't work. The added problem is that I cannot get more specifics.
>
> Could you please advise as to what could the reason for the failure
> of the rebuilt library on Tiger PPC could be and how I should try to
> fix it?
>
> Thanks in advance,
> Yolian
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> End of platform-swt-dev Digest, Vol 41, Issue 22
> ************************************************
