[Insight-developers] Backport ___isnan fix to ITK 2.0.1 release?

[Zachary Pincus]

Excellent. Will these changes will propagate to the tarballs of 2.0  
and 2.0.1 on the ITK download page at some point?

Zach


On Jul 14, 2005, at 6:48 AM, Brad King wrote:

> Zachary Pincus wrote:
>
>> I just tried (in the course of attempting to localize my TIFF bug)  
>> to  compile the ITK 2.0.1 on a Mac I have access to that's running  
>> OS X  10.3.9.
>> This unfortunately failed because of the __isnan link problems  
>> that  had been put to rest in the CVS tree last month. I  (and  
>> perhaps  others) had thought that this problem was Tiger (10.4)  
>> specific.  However, it in fact affects 10.3 versions too. Which  
>> means that as of  now, the latest ITK "bugfix" release fails to  
>> build on all Macs with  up-to-date operating systems (I can  
>> confirm failure on 10.3.9 and  10.4.1), as far as I can tell!
>> Would it be a good idea to "backport" the fix to the 2.0.1 release  
>> so  that until the next point release, mac-using ITK-neophytes  
>> won't have  their first experience with the toolkit be a  
>> mystifying linker error?  Or alternately, is there a new 2.0.2  
>> point release coming up soon to  obviate the 2.0.1 release?
>> Note that there've been three or four emails to the user list in  
>> the  last month or two about this issue. If that many people have  
>> had the  error and posted to the list, imagine how many have had  
>> the error and  given up?
>> The fix is quite simple, as Brad who finally figured out the  
>> issue  knows.
>> In file:
>> [INSIGHT_ROOT]/Utilities/vxl/core/vnl/vnl_math.cxx
>> change line 62 from:
>> # define isnan __isnan
>> to
>> # define isnan(x) __isnand((double)x)
>>
>
> This change has been put on the ITK-2-0 branch.
>
> -Brad
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