[ITK Community] [Insight-developers] Problem building ITK

Bradley Lowekamp blowekamp at mail.nih.gov
Thu Feb 6 18:35:29 EST 2014 

I don't understand where or why these variable were causing the problem. It is just some CMake script which is not correctly handling when then are empty strings?

Brad
On Feb 6, 2014, at 4:55 PM, Jean-Christophe Fillion-Robin <jchris.fillionr at kitware.com> wrote:

> Hi Folks, 
> 
> May be ITK could include a module similar to what is done in Slicer (originally grabbed from paraview). See [1]
> 
> [1] https://github.com/Slicer/Slicer/blob/master/CMake/SlicerBlockSetCMakeOSXVariables.cmake
> 
> Then, by simply doing:
> 
>   include(ITKOSXVariables)
> 
> before 
> 
>   project(ITK ...)
> 
> everything would be set by default.
> 
> This approach turns out to be very useful and saved our user a lot of headaches.
> 
> Hth
> Jc
> 
> 
> On Thu, Feb 6, 2014 at 4:32 PM, Padfield, Dirk R (GE Global Research) <padfield at research.ge.com> wrote:
> Hi All,
> 
> I just got everything to work.  I needed to set the OSX variables in CMake.  When I did this for the git version, it all compiled correctly.  Below are the three needed settings.  Where is the best place where we can document this for others?
> 
> Thanks,
> Dirk
> 
> CMAKE_OSX_SYSROOT:PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk
> 
> CMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.9
> 
> CMAKE_OSX_ARCHITECTURES:STRING=x86_64
> 
> 
> On Feb 6, 2014, at 1:47 PM, Bradley Lowekamp <blowekamp at mail.nih.gov>
>  wrote:
> 
> > Dirk,
> >
> > 1) You are not using GNU's GCC. Apple has LLVM  alias as gcc.
> >
> > 2)  I think you are on the right track with changing the c++ standard library. However this should be a flag for the compiler too. Before doing a fresh configure to a CLEAN build directory, set the CXX_FLAGS environmental variable to "-stdlib=libc++", with "export CXX_FLAGS=-stdlib=libc++". CMake should pick that up and place it in the CMAKE_CXX_FLAGS variable, also I think SCIFIO does some type of external project, so hopefully this environmental variable will help it get propagated there too.
> >
> > Good luck,
> > Brad
> >
> > On Feb 6, 2014, at 1:01 PM, Padfield, Dirk R (GE Global Research) <padfield at research.ge.com> wrote:
> >
> >> Hi Matt,
> >>
> >> I started from a fresh build tree several times yesterday just to make sure (although I will try a fresh source tree today too).  I wiped the entire build tree and started from scratch twice.  I also built 4.5.0 from scratch yesterday, and it worked fine until I enabled "Module_SCIFIO" at which point it gave the same error as the git version.  At least it's consistent!
> >>
> >> I tried adding the following flag to the linker
> >>
> >> -stdlib=libstdc++
> >>
> >> as suggested in http://mathematica.stackexchange.com/questions/34692/mathlink-linking-error-after-os-x-10-9-mavericks-upgrade, but that didn't help.  I'm not on OSX 10.9, but I am using Xcode 5.0.2.
> >>
> >> Thanks,
> >> Dirk
> >>
> >>
> >> ________________________________________
> >> From: Matt McCormick [matt.mccormick at kitware.com]
> >> Sent: Thursday, February 06, 2014 12:50 PM
> >> To: Padfield, Dirk R (GE Global Research)
> >> Cc: insight-developers at itk.org
> >> Subject: Re: [ITK Community] [Insight-developers] Problem building ITK
> >>
> >> Hi Dirk,
> >>
> >> Starting from a a fresh source tree and a fresh build tree, does the
> >> problem persist?
> >>
> >> Thanks,
> >> Matt
> >>
> >> On Thu, Feb 6, 2014 at 12:01 PM, Padfield, Dirk R (GE Global Research)
> >> <padfield at research.ge.com> wrote:
> >>> Hi All,
> >>>
> >>> I have a problem building ITK on my Mac that I wanted to ask about.  ITK builds all the way to the end but then fails when linking
> >>>
> >>> Linking CXX shared library ../../../../lib/libitkSCIFIO-4.6.dylib
> >>> Undefined symbols for architecture x86_64:
> >>>
> >>> This is followed by a string of errors inside of SCIFIOImageIO.
> >>>
> >>> Here are my specs:
> >>> Mac OSX 10.8.5 (Mountain Lion)
> >>> Xcode 5.0.2
> >>> CMake 2.8.11
> >>> ITK latest git pull with:
> >>> BUILD_SHARED_LIBS = ON
> >>> CMAKE_BUILD_TYPE = RelWithDebInfo
> >>>
> >>> Also, I am building with "Eclipse CDT4 - Unix Makefiles" and "specify native compilers" of "C = gcc" and "C++ = g++".
> >>>
> >>> When running CMake on this version, there is no flag for "Module_SCIFIO".
> >>>
> >>> By the way, I also tried downloading Insight-4.5.0 and building it exactly the same way, and it worked fine.  I noticed that in CMake for 4.5.0, it has a flag "Module_SCIFIO", which is off by default.  But if I turn this flag on and rebuild, I get the same issue described above.
> >>>
> >>> Does anyone have any ideas?
> >>>
> >>> Thanks,
> >>> Dirk
> >>> _______________________________________________
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> >>>
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> >>>
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> >>>
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> >>
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> 
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> 
> Visit other Kitware open-source projects at
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> 
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> 
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