Re: Do Windows compilers require WS_VAR_IMPORT in .h files

[Pascal Quantin <pascal.quantin () gmail com>]

2012/9/28 Joerg Mayer <jmayer () loplof de>

> Hello,
>
> I'm working on building wireshark with gcc with -fvisibility=hidden. This
> will mostly mimic the behaviour already on Windows. The gcc attribute
> to change the visibility causes errors when used in .h files (well, in
> declarations without a  the object).
> I have replaced WS_VAR_IMPORT with extern in .h files. Can someone on
> Windows
> please test whether this still works?

Hi Jörg,

it fails with the following errors (MSVC2010EE 32 bits):

        link -dll /out:profinet.dll /NOLOGO /INCREMENTAL:no /DEBUG
/MACHINE:x86 /SafeSEH /DYNAMICBASE /FIXED:no  packet-dcerpc-pn-io.obj
packet-dcom-cba.obj  packet-dcom-cba-acco.obj  packet-pn-dcp.obj
packet-pn-mrp.obj  packet-pn-mrrt.obj  packet-pn-ptcp.obj  packet-pn-rt.obj
packet-pn.obj plugin.obj ..\..\epan\libwireshark.lib
D:\dev\wireshark-win32-libs\gtk2\lib\glib-2.0.lib
D:\dev\wireshark-win32-libs\gtk2\lib\gmodule-2.0.lib
D:\dev\wireshark-win32-libs\gtk2\lib\gobject-2.0.lib profinet.res
   Creating library profinet.lib and object profinet.exp
packet-dcom-cba.obj : error LNK2001: unresolved external symbol
_dcom_hresult_vals
packet-dcom-cba-acco.obj : error LNK2019: unresolved external symbol
_dcom_hresult_vals referenced in function _dissect_CBA_Connection_Data
packet-dcom-cba-acco.obj : error LNK2001: unresolved external symbol
_dcom_variant_type_vals
profinet.dll : fatal error LNK1120: 2 unresolved externals
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio
10.0\VC\BIN\link.EXE"' : return code '0x460'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio
10.0\VC\BIN\nmake.exe"' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio
10.0\VC\BIN\nmake.exe"' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio
10.0\VC\BIN\nmake.exe"' : return code '0x2'
Stop.

Regards,
Pascal.

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