[Insight-developers] Xcode 2.4 and isnan

[Bradley Lowekamp]

I posted this message to the users group, but perhaps this is the  
appropriate list for this type of message.

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.

One solution may be to detect the __isnand symbol during configuration?

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

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