[vtkusers] Migration to VTK6

[David Gobbi]

Hi Arno,

Look for the following line in your CMakeCache.txt:

OPENGL_glu_LIBRARY:FILEPATH=/System/Library/Frameworks/AGL.framework

Change it to the following and then recompile:

OPENGL_glu_LIBRARY:FILEPATH=/System/Library/Frameworks/OpenGL.framework

That should keep the problematic AGL library out of your build.

Please let me know if this works.

Cheers,
 - David


On Wed, Jan 6, 2016 at 4:45 PM, Arno Klein <binarybottle at gmail.com> wrote:

> Thank you all so much for your kind help.  Unfortunately, I am still
> unable to compile the C++ code in my project on MacOSX, even after setting
> the following in my top-level CMakeLists.txt file:
> SET(CMAKE_OSX_DEPLOYMENT_TARGET "10.7")
>
> When I type:
> $ export VERBOSE=1
> $ make
>
> I get the following even though I don't have
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk/
> but instead have
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/
> on my computer:
>
> ------------------
> ...
>
> *Scanning dependencies of target TravelDepthMain*
>
> /Applications/Xcode.app/Contents/Developer/usr/bin/make -f
> travel_depth/CMakeFiles/TravelDepthMain.dir/build.make
> travel_depth/CMakeFiles/TravelDepthMain.dir/build
>
> [ 57%] Building CXX object
> travel_depth/CMakeFiles/TravelDepthMain.dir/TravelDepthMain.cpp.o
>
> cd /software/install/mindboggle/surface_cpp_tools/bin/travel_depth &&
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
>   -DvtkRenderingContext2D_AUTOINIT="1(vtkRenderingContextOpenGL)"
> -DvtkRenderingCore_AUTOINIT="3(vtkInteractionStyle,vtkRenderingFreeType,vtkRenderingOpenGL)"
> -DvtkRenderingFreeType_AUTOINIT="1(vtkRenderingMatplotlib)"
> -DvtkRenderingVolume_AUTOINIT="1(vtkRenderingVolumeOpenGL)"
> -I/software/install/miniconda2/include/vtk-6.3
> -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
> -isystem /software/install/miniconda2/include  -isysroot
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk
>   -o CMakeFiles/TravelDepthMain.dir/TravelDepthMain.cpp.o -c
> /software/install/mindboggle/surface_cpp_tools/travel_depth/TravelDepthMain.cpp
>
> make[2]: *** No rule to make target
> `/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk/System/Library/Frameworks/AGL.framework',
> needed by `travel_depth/TravelDepthMain'.  Stop.
>
> make[1]: *** [travel_depth/CMakeFiles/TravelDepthMain.dir/all] Error 2
>
> make: *** [all] Error 2
> -------------------
>
>
> Cheers,
> @rno
>
> On Fri, Dec 11, 2015 at 9:36 PM, David Gobbi <david.gobbi at gmail.com>
> wrote:
>
>> Hi Arno,
>>
>> I think that I've found out where the AGL link is coming from.  It isn't
>> via Carbon, it looks like it was linked directly into the VTK that you're
>> using.  And it looks like a bug within CMake itself.
>>
>> CMake has a module called FindOpenGL.cmake that VTK uses to find OpenGL.
>> It looks for both the OpenGL.framework and for the obsolete AGL.framework
>> (which is only for Carbon, and is deprecated by Apple).  If it finds both
>> (e.g. with an older SDK and XCode 6 or earlier), then it uses both, even
>> though AGL.framework is really not needed for any modern software.
>>
>> This means that a VTK that is built with (for example) Xcode 6 and its
>> SDKs becomes linked to AGL, because AGL.framework is present in those older
>> SDKs.  It's a private link, though, so I'm surprised that it would cause
>> the error.  But you are building with Xcode 7 and you are seeing an
>> error... that much is indisputable.
>>
>> I suggest that you enable verbose error reporting so that you can see
>> exactly what is being linked when the error occurs:
>>
>> export VERBOSE=1
>> make
>> ...
>>
>> Use "unset VERBOSE" to turn off the verbosity.
>>
>>  - David
>>
>>
>> On Fri, Dec 11, 2015 at 3:57 PM, Arno Klein <binarybottle at gmail.com>
>> wrote:
>>
>>> I tried again, and am still getting the AGL.framework error even when I
>>> set to 10.9 and the SDK to 10.11 (see:
>>> https://github.com/nipy/mindboggle/blob/master/surface_cpp_tools/CMakeLists.txt
>>> ):
>>>
>>> > [ 57%] Building CXX object
>>> travel_depth/CMakeFiles/TravelDepthMain.dir/TravelDepthMain.cpp.o
>>> > make[2]: *** No rule to make target
>>> `/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk/System/Library/Frameworks/AGL.framework',
>>> needed by `travel_depth/TravelDepthMain'.  Stop.
>>> > make[1]: *** [travel_depth/CMakeFiles/TravelDepthMain.dir/all] Error 2
>>> > make: *** [all] Error 2
>>>
>>> Could you please tell me how to ensure that there are no calls to Carbon
>>> APIs?
>>>
>>> By the way, I am tracking this as an issue on Github:
>>> https://github.com/nipy/mindboggle/issues/69
>>>
>>> Cheers,
>>> @rno
>>>
>>>
>>> On Fri, Dec 11, 2015 at 5:27 AM, David Gobbi <david.gobbi at gmail.com>
>>> wrote:
>>>
>>>> Hi Arno,
>>>>
>>>> Using the macosx10.11 SDK is fine as long as it allows you to set this
>>>> desired deployment target.  So if you are able to compile with the
>>>> following settings, then the result should run on OS X 10.7:
>>>>
>>>> CMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7
>>>> CMAKE_OSX_SYSROOT:STRING=macosx10.11
>>>>
>>>> I'm not sure how far back you can set the deployment target with this
>>>> SDK, but if the 10.7 target doesn't compile, you can try 10.8 or 10.9.
>>>>
>>>> If if gives errors for the AGL.framework, then make sure that your code
>>>> has no calls to Carbon APIs.
>>>>
>>>>  - David
>>>>
>>>
>
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