Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Tue, 6 Feb 2018 22:47:21 +0000

Hi Michael,

That fixed that error.  I then got the same error with channel.cpp, so I did the same fix in that file.

That then leads to this error, which I don't know how to fix:

make[1]: Entering directory 'H:/epics-devel/base-7.0.1/modules/pva2pva/pdbApp'
make -C O.windows-x64-debug -f ../Makefile TOP=../.. \
    T_A=windows-x64-debug install
make[2]: Entering directory 'H:/epics-devel/base-7.0.1/modules/pva2pva/pdbApp/O.windows-x64-debug'
link -nologo -subsystem:windows -dll -debug -incremental:no -fixed:no -MACHINE:X64      -out:qsrv.dll -implib:qsrv.lib        pvif.obj qsrv.obj pdb.obj pdbsingle.obj demo.obj image
demo.obj pdbgroup.obj configparse.obj      H:/epics-devel/base-7.0.1/lib/windows-x64-debug/pvAccess.lib  H:/epics-devel/base-7.0.1/lib/windows-x64-debug/pvData.lib  H:/epics-devel/
base-7.0.1/lib/windows-x64-debug/dbRecStd.lib  H:/epics-devel/base-7.0.1/lib/windows-x64-debug/dbCore.lib  H:/epics-devel/base-7.0.1/lib/windows-x64-debug/ca.lib  H:/epics-devel/ba
se-7.0.1/lib/windows-x64-debug/Com.lib
pvAccess.lib(pvAccess.dll) : error LNK2005: "public: virtual __cdecl epics::pvAccess::ChannelFind::~ChannelFind(void)" (??1ChannelFind@pvAccess@epics@@UEAA@XZ) already defined in qsrv.obj
pvAccess.lib(pvAccess.dll) : error LNK2005: "public: __cdecl epics::pvAccess::ChannelFind::ChannelFind(void)" (??0ChannelFind@pvAccess@epics@@QEAA@XZ) already defined in qsrv.obj
   Creating library qsrv.lib and object qsrv.exp
qsrv.dll : fatal error LNK1169: one or more multiply defined symbols found
H:/epics-devel/base-7.0.1/configure/RULES_BUILD:288: recipe for target 'qsrv.dll' failed
make[2]: *** [qsrv.dll] Error 1169
make[2]: Leaving directory 'H:/epics-devel/base-7.0.1/modules/pva2pva/pdbApp/O.windows-x64-debug'
H:/epics-devel/base-7.0.1/configure/RULES_ARCHS:58: recipe for target 'install.windows-x64-debug' failed
make[1]: *** [install.windows-x64-debug] Error 2
make[1]: Leaving directory 'H:/epics-devel/base-7.0.1/modules/pva2pva/pdbApp'
H:/epics-devel/base-7.0.1/configure/RULES_DIRS:84: recipe for target 'pdbApp.install' failed
make: *** [pdbApp.install] Error 2

> -----Original Message-----
> From: Michael Davidsaver [mailto:[email protected]]
> Sent: Tuesday, February 06, 2018 4:28 PM
> To: Mark Rivers <[email protected]>
> Cc: [email protected]
> Subject: Re: Build error for windows-x64-debug on VS2010
> 
> On 02/06/2018 01:25 PM, Mark Rivers wrote:
> > I am getting an error building pva2pva for the windows-x64-debug architecture on
> VS2010.  I don't think this is an error I have previously reported.  I don't know how to fix
> it.
> ...
> >
> > link -nologo  -debug -incremental:no -fixed:no -MACHINE:X64              -
> out:p2p.exe       gwmain.obj server.obj chancache.obj moncache.obj channel.obj     H:/epics-
> devel/base-7.0
> >
> > .1/lib/windows-x64-debug/pvAccessIOC.lib  H:/epics-devel/base-7.0.1/lib/windows-x64-
> debug/pvAccess.lib  H:/epics-devel/base-7.0.1/lib/windows-x64-debug/pvData.lib  H:/epics-
> devel/b
> >
> > ase-7.0.1/lib/windows-x64-debug/Com.lib
> >
> > Com.lib(Com.dll) : error LNK2005: "public: __cdecl
> epicsTimerNotify::epicsTimerNotify(void)" (??0epicsTimerNotify@@QEAA@XZ) already
> defined in server.obj
> >
> >    Creating library p2p.lib and object p2p.exp
> >
> > p2p.exe : fatal error LNK1169: one or more multiply defined symbols found
> 
> Gosh Mark, you sure find some good issues.
> 
> Let's assume this is an dllimport vs. export bug.  Can you add the following to
> p2pApp/server.cpp
> above the epicsExportSharedSymbols and see if the situation changes at all?
> 
> > #include <epicsTimer.h> // add this line
> > #define epicsExportSharedSymbols

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System