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Date: Tue, 19 Feb 2008 11:30:48 -0800 (PST)
From: "Farid Zaripov (JIRA)" <jira@apache.org>
To: issues@stdcxx.apache.org
Subject: [jira] Updated: (STDCXX-408) make use of
 __declspec(dll{export,import}) on all platforms
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     [ https://issues.apache.org/jira/browse/STDCXX-408?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Farid Zaripov updated STDCXX-408:
---------------------------------

    Fix Version/s:     (was: 4.2.1)
                   4.3

Since the gcc 3.4.4 on Cygwin doesn't exports the template instantiations, declared as __declspec(dllexport), and the latest for this moment gcc 4.2.3 still doesn't correctly exports the virtual function tables (I've got the internal compiler error during linking the strstream example against stdcxx library) I think that __declspec(dllexport/dllimport) feature is unusable on gcc/Cygwin. Also I can't verify this feature on HP aCC because the HP testdrive servers still has the buggy A.06.14 version.

So I deferring this issue to the later time.

> 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: 4.3
>
>         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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