[Cmb-users] automoc symbol issues

[tj.corona at kitware.com]

Thanks Haocheng and David! You guys solved my problem. The MR is here if anyone wants to review: https://gitlab.kitware.com/cmb/cmb/merge_requests/358

Sent from Mail for Windows 10

From: Haocheng Liu
Sent: Thursday, April 13, 2017 9:40 AM
To: David Thompson
Cc: TJ Corona; Robert Michael O'Bara; Ben Boeckel; John Tourtellott; cmb-users
Subject: Re: automoc symbol issues

Hi TJ,

I  did some simple tests on Kerbin(windows10 + VS2015). By simply removing **#include "pqComponentsModule.h"** and **PQCOMPONENTS_EXPORT** in pqSMTKInfoPanel.h, the build succeeds.

It seems that PQCOMPONENTS_EXPORT is used in ParView to export model pqComponents symbol, may I ask why we need it in CMB? 

On Thu, Apr 13, 2017 at 9:57 AM, David Thompson <david.thompson at kitware.com> wrote:
Hi TJ,

In my version of CMB (admittedly not the latest master, but close), there is no EXPORT macro in the "class pqSMTKMeshInfo" declaration.

        David

> On Apr 13, 2017, at 08:52, <tj.corona at kitware.com> <tj.corona at kitware.com> wrote:
>
> This got bounced from cmb-developers, so I am resending it here
>
> Sent from Mail for Windows 10
>
> From: tj.corona at kitware.com
> Sent: Thursday, April 13, 2017 7:49 AM
> To: cmb-developers at kitware.com; Shawn Waldon
> Subject: automoc symbol issues
>
> Hi all,
>
> I am trying to fix a bug I introduced into the windows build of ModelBuilder, and am having little luck. It looks like the auto-MOC’d file generated for my class has bad dll linkage. This is the perfect storm of Windows, Qt and linking for me, and I am completely out of my depth. Does anyone have any idea why my class (which looks exactly like the other Qt-derived classes in this directory) won’t compile on Windows? Here’s a snipped of the errors I’m getting:
>
> c:\dev\cmb_sb_vs2015\superbuild\cmb\build\source\applications\modelbuilder\ModelBuilder_automoc.dir/moc_pqSMTKMeshInfo_OPAOOSEHZX24R7.cpp(52): warning C4273: 'staticMetaObject': inconsistent dll linkage
>
> c:\dev\cmb_sb_vs2015\superbuild\cmb\build\source\applications\modelbuilder\modelbuilder_automoc.dir\../../../../../src/Source/Applications/ModelBuilder/pqSMTKMeshInfo.h(38): note: see previous definition of 'public: static QMetaObject const pqSMTKMeshInfo::staticMetaObject'
>
> c:\dev\cmb_sb_vs2015\superbuild\cmb\build\source\applications\modelbuilder\ModelBuilder_automoc.dir/moc_pqSMTKMeshInfo_OPAOOSEHZX24R7.cpp(52): error C2491: 'pqSMTKMeshInfo::staticMetaObject': definition of dllimport static data member not allowed
>
> Thanks!
>
> Sincerely,
> T.J.
>
> Sent from Mail for Windows 10




-- 
Best regards
Haocheng

Haocheng LIU
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4421

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