[Insight-developers] Suggestion on correcting the following warning

[Williams, Norman K]

QED: http://review.source.kitware.com/#change,2049


On 7/8/11 11:20 AM, "Bradley Lowekamp" <blowekamp at mail.nih.gov> wrote:

>I see the following warning, I would like to fix:
>http://www.cdash.org/CDash/viewBuildError.php?type=1&buildid=1313872
>
>It comes from this little file which has an optional definition of a
>static variable:
>http://itk.org/gitweb?p=ITK.git;a=blob;f=Modules/Core/Common/src/itk_hasht
>able.cxx;h=b53eed69e2313a8a63657bc77d6ffd7512deae93;hb=HEAD
>
>So when it's not defined, the .o module has not symbols.
>
>It would be good to correct the way we build so as not to build an
>"empty" file. The logic of when the variable is defined is rather complex
>and can't be determined by CMake and add source time.
>
>Posible solutions are:
>1) add another variable to the file that isn't used
>2) moved the definition of the variable to another file ( which always
>has a symbol )
>3) just suppress this warning, so I'll always seeing in my editor, and
>may result in me ignoring other warnings too. ( not my preferred option )
>
>Any suggestions about the best solution?
>
>Thanks,
>Brad
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