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https://issues.apache.org/jira/browse/STDCXX-408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12555658#action_12555658
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Martin Sebor commented on STDCXX-408:
-------------------------------------

A couple of comments/questions on the patch:

1. Since the name of the attribute is dllexport the name of the config macro 
should be _RWSTD_NO_DLLEXPORT (no space between DLL and EXPORT).
2. It would be nice if we could avoid #defining _RWSTD_IMPORT and/or 
_RWSTD_IMPORT in every config test that uses the macro. Is there any way to get 
the macros #defined in the generated config header?

> make use of __declspec(dll{export,import}) on all platforms
> -----------------------------------------------------------
>
>                 Key: STDCXX-408
>                 URL: https://issues.apache.org/jira/browse/STDCXX-408
>             Project: C++ Standard Library
>          Issue Type: Improvement
>          Components: Build
>    Affects Versions: 4.1.2, 4.1.3, 4.1.4, 4.2.0
>         Environment: HP aCC 3.37 and beyond, gcc/Linux
>            Reporter: Martin Sebor
>            Assignee: Farid Zaripov
>             Fix For: 4.2.1
>
>         Attachments: dllexport.patch, gmake.log
>
>
> Starting with HP aCC 3.37 the compiler supports the __declspec(dllexport) and 
> __declspec(dllimport) decorators on declarations of symbols with external 
> linkage. According to the Release Notes for the compiler, "Support of these 
> keywords enhances the performance of shared libraries and relieves the usage 
> of HP_DEFINED_EXTERNAL pragmas and +Oextern= list to hide the non-exported 
> symbols." See http://docs.hp.com/en/2212/A-03-37relnotes.html.
> We should enable this in our builds.

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