[Insight-users] RE: XCode 2.4 and isnan

[Gaëtan Lehmann]

Hi,

I'm still with the previous xcode (2.3), and can't build ITK cvs anymore.  
I get the error message:

  CMake Error: Error in cmake code at
  /Users/glehmann/src/Insight/Utilities/vxl/config/cmake/config/CMakeLists.txt:123:
  MESSAGE Neither the __isnand nor the __inline_isnand functions are  
available !
  Current CMake stack:  
/Users/glehmann/src/Insight/Utilities/vxl/config/cmake/config/CMakeLists.txt

The easy solution is to upgrade xcode, but other will surely have the same  
problem, so it seems better to fix :-)

Gaetan


Le Fri, 25 Aug 2006 16:42:43 +0200, Bradley Lowekamp  
<blowekamp at mail.nih.gov> a écrit:

> Sweet.
>
> However, I think Hans Johnson suggestion is good. This current test
> checks internal symbols exist, this seems like very bad practice to
> me. I checked and:
>
> #define isnan(x) std::isnan(x)
>
> builds. I think this would be a better solution and will likely not
> break again in the future. I am suggesting changing/adding at test
> for std::isnan.
>
> Thanks,
> Brad
>
> On Aug 25, 2006, at 3:41 AM, Karthik Krishnan wrote:
>
>> Hello,
>>
>> A TRY_COMPILE has been added to check for the existance of __isnand
>> and __inline_isnand. Please update your CVS and let us know if it
>> works for you.
>>
>> http://www.itk.org/cgi-bin/viewcvs.cgi/Utilities/vxl/core/
>> vxl_config.h.in?root=Insight&r1=1.5&r2=1.6
>> http://www.itk.org/cgi-bin/viewcvs.cgi/Utilities/vxl/config/cmake/
>> config/vxl_platform_tests.cxx?root=Insight&r1=1.7&r2=1.8
>> http://www.itk.org/cgi-bin/viewcvs.cgi/Utilities/vxl/config/cmake/
>> config/CMakeLists.txt?root=Insight&r1=1.9&r2=1.10
>> http://www.itk.org/cgi-bin/viewcvs.cgi/Utilities/vxl/core/vnl/
>> vnl_math.cxx?root=Insight&r1=1.12&r2=1.13
>>
>> Thanks
>> -karthik
>>
>>
>> Hans Johnson wrote:
>>> Hello All,
>>>
>>> I just wanted to add some more information.  I got similar results by
>>> replacing the same line with :
>>>
>>> using std::isnan;
>>>
>>> Hans
>>>
>>>
>>>
>>>
>>>
>>> On 8/16/06 11:30 AM, "Remo Mueller" <remo.mueller at case.edu> wrote:
>>>
>>>
>>>> I'm currently working on MacOSX 10.4.7 with Xcode 2.4 installed, and
>>>> I'm compiling the code using gcc version 4.0.1 (Apple Computer, Inc.
>>>> build 5363), using CMake 2.4.3.
>>>>
>>>> I ran into the same problem of isnan not being defined in
>>>> vnl_math.cxx, which is located under Utilities/vxl/core/vnl/
>>>>
>>>> I finally got ITK to compile by changing line 66 in vnl_math.cxx
>>>> from:
>>>>
>>>> #define isnan(x) __isnand((double)x)
>>>>
>>>> to
>>>>
>>>> #define isnan(x) __inline_isnand((double)x)
>>>>
>>>> This line is defined in the #if defined (__APPLE__) code block.
>>>>
>>>> I'm not sure if this is correct, but it seems to fix the problem.
>>>> This problem exists in ITK 2.8.1 and the current version of CVS.
>>>> Can
>>>> someone who's more knowledgeable about the inner workings of ITK
>>>> verify if this fixes the original problem? Thanks
>>>>
>>>> I hope this helps,
>>>> Remo Mueller
>>>>
>>>> Case Western Reserve University
>>>> Computer Science BS/MS Program
>>>>
>>>>
>>>>
>>>>
>>>>> This is regarding the following build errors:
>>>>>
>>>>> http://www.itk.org/Testing/Sites/eno/Darwin-Xcode2.4-rel/
>>>>> 20060811-0100-Nightly/BuildError.html
>>>>>
>>>>> Last week a new version of Xcode was release. It seems to mostly
>>>>> work
>>>>> with ITK and CMake. However, there was a minor change to the isnan.
>>>>> The internal symbol __isnand is no longer used in the isnan macro,
>>>>> instead the marco reference __inline__isnan[fd]? inlined
>>>>> function is
>>>>> used. I was not able to figure what was going on in this header
>>>>> file
>>>>> and why the isnan macro would not work.
>>>>>
>>>>> I also suspect that this same problem will occur with a unix make
>>>>> file since it it a change to a system header file.
>>>>>
>>>>> Thanks,
>>>>> Brad
>>>>>
>>>>> ========================================================
>>>>> Bradley Lowekamp
>>>>> Management Systems Designers Contractor for
>>>>> Office of High Performance Computing and Communications
>>>>> National Library of Medicine
>>>>> blowekamp at mail.nih.gov
>>>>>
>>>>>
>>>> _______________________________________________
>>>> Insight-users mailing list
>>>> Insight-users at itk.org
>>>> http://www.itk.org/mailman/listinfo/insight-users
>>>>
>>>
>>> _______________________________________________
>>> Insight-users mailing list
>>> Insight-users at itk.org
>>> http://www.itk.org/mailman/listinfo/insight-users
>>>
>>>
>
> ========================================================
> Bradley Lowekamp
> Management Systems Designers Contractor for
> Office of High Performance Computing and Communications
> National Library of Medicine
> blowekamp at mail.nih.gov
>



-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr