[ITK-dev] Insight-developers Digest, Vol 151, Issue 16

[Simon Warfield]

On 11/12/16 12:00 PM, insight-developers-request at itk.org wrote:
>
> Here are the tests:
>
>    https://urldefense.proofpoint.com/v2/url?u=http-3A__review.source.kitware.com_-23_c_21755_&d=DQICAg&c=qS4goWBT7poplM69zy_3xhKwEW14JZMSdioCoppxeFU&r=spboX-Qn5Dn-uyspT__O0BtpSEF5erHIiRAwdzSaa_QAQ58afxHcHSMuB76pSgfl&m=M-IiPEMMeqHF1XHRKIyX7e1SrEaHJUjru2T5LMeNq48&s=e1f60RJqOXt5tQ7np0HYJNJAW7V0q3QiRYCHKw9CV_U&e=
>
> where reasonable export specification is added in both ITK and the
> client libraries. But, dynamic_cast fails on OSX:
>
>    https://urldefense.proofpoint.com/v2/url?u=https-3A__open.cdash.org_testDetails.php-3Ftest-3D499059765-26build-3D4637669&d=DQICAg&c=qS4goWBT7poplM69zy_3xhKwEW14JZMSdioCoppxeFU&r=spboX-Qn5Dn-uyspT__O0BtpSEF5erHIiRAwdzSaa_QAQ58afxHcHSMuB76pSgfl&m=M-IiPEMMeqHF1XHRKIyX7e1SrEaHJUjru2T5LMeNq48&s=Fh8PMzdqTGvkcjXgnHusVcl_L6j6tMu22QGt88eXt6w&e=
>
>
> Matt

The document here: http://www.russellmcc.com/posts/2013-08-03-rtti.html 
, says this should work if all of the classes are appropriately marked 
as 'default' and that the linker will give a fatal warning if this is 
not the case.

Where does the test code mark the classes shared across the dylib 
boundaries as 'default' rather than 'hidden' ?

What does the OS X linker say about the code when fatal warnings are 
turned on ?

--Simon