[Paraview] Problem linking Cocoa pqWidgets

[Dave Partyka]

FYI I just committed this change to the branch and to head as I am going to
release a Leopard+ (Cocoa x86/x86_64) binary as well as a the traditional
Tiger+ (Carbon x86/ppc) binary.

On Wed, Jan 6, 2010 at 4:35 PM, Eric E. Monson <emonson at cs.duke.edu> wrote:

> Hello,
>
> On one of my machines I just switched over to Snow Leopard, so I did a
> fresh CVS grab of ParaView. I have Qt 4.5.3 built from source for Cocoa (x86
> and x86_64 architectures), and I have been trying to build ParaView
> (i386;x86_64), but keep getting a linking error on the pqWidgets library:
>
> [ 90%] Built target QtTesting
> Linking CXX shared library ../../bin/libpqWidgets.dylib
> Undefined symbols:
>  "_objc_msgSend", referenced from:
>      pqProgressBarHelper::setProgress(int)    in pqProgressBarHelper.mm.o
>      pqProgressBarHelper::setProgress(int)    in pqProgressBarHelper.mm.o
>      pqProgressBarHelper::setProgress(int)    in pqProgressBarHelper.mm.o
> ld: symbol(s) not found
> collect2: ld returned 1 exit status
> Undefined symbols:
>  "_objc_msgSend", referenced from:
>      pqProgressBarHelper::setProgress(int)    in pqProgressBarHelper.mm.o
>      pqProgressBarHelper::setProgress(int)    in pqProgressBarHelper.mm.o
>      pqProgressBarHelper::setProgress(int)    in pqProgressBarHelper.mm.o
> ld: symbol(s) not found
>
> I found I can get past this if I add a "-framework Cocoa" to the linker
> line manually, so I think in ParaView3/Qt/Widgets/CMakeLists.txt maybe there
> should be another check added, something like (line 198):
>
>  if(VTK_USE_COCOA)
>    TARGET_LINK_LIBRARIES(pqWidgets "-framework Cocoa")
>  endif(VTK_USE_COCOA)
>
> The progress bar doesn't really work and I'm running into the "grayed out
> filters" that some others have mentioned (filters show up right after
> launching PV, I can generate or load a "source", and I can apply one filter,
> but then they disappear after that and won't come back), but at least PV
> compiled... :)
>
> Not sure if it's relevant, but in case it's helpful: On another machine
> with a very similar setup (Snow Leopard and x86,x86_64 Cocoa Qt 4.5.2 from
> source), but just CVS "update" and rebuild on an old checkout rather than a
> fresh one, I noticed that the pqWidgets_LIB_DEPENDS (and a bunch of other
> things) include ;general;-framework Carbon;general;-framework
> AppKit;general;-framework ApplicationServices;  The progress bar doesn't
> work on that version, either, but I don't get the "grayed out" filters
> problem.
>
> Thanks,
> -Eric
>
> ------------------------------------------------------
> Eric E Monson
> Duke Visualization Technology Group
>
>
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