[gecode-users] Linker errors when compiling Gecode with GCC on Windows

[Guido Tack]

As I said, mingw is not officially supported, and I can't test it here.  There were some messages on the mailing list a while ago about how to compile using mingw, and it involved changing quite a few things.

The only thing you could try is to change all the GECODE_VTABLE_EXPORT to GECODE_{KERNEL,SUPPORT,INT,...}_EXPORT in the exception.hpp files (depending on which module they're in), perhaps that does the trick.

Cheers,
Guido

On 13/05/2013, at 9:39 AM, Mailing List Email <mailinglistx at gmail.com> wrote:

> Tried the linker order. Same error. Also same error if I remove all the -l options. It simply can't find the symbols.
> --disable-gcc-visibility doesn't work, at least on mingw based on gcc 4.8.
> 
> 
> On 13 May 2013 01:32, Guido Tack <tack at gecode.org> wrote:
> Hi,
> 
> please try linking in the order explained in Sect. 2.3.3 in MPG.  If that doesn't solve the problem, try the --disable-gcc-visibility configure option (although I'm not sure if that works with mingw).  It's possible that the visibility attributes don't work with the current configuration for mingw (we don't test mingw at all).
> 
> Cheers,
> Guido
> 
> On 13/05/2013, at 12:24 AM, Mailing List Email <mailinglistx at gmail.com> wrote:
> 
> > Hi all,
> >
> > I'm trying to compile some Gecode code with GCC on Windows. I am getting the following linking errors:
> >
> > ccUI4ffQ.o:NoOverlap.cpp:(.text$_ZN6Gecode9ExceptionD2Ev[__ZN6Gecode9ExceptionD2Ev]+0xe): undefined reference to `_imp___ZTVN6Gecode9ExceptionE'
> > ccUI4ffQ.o:NoOverlap.cpp:(.text$_ZN6Gecode15MemoryExhaustedC1Ev[__ZN6Gecode15MemoryExhaustedC1Ev]+0x1e): undefined reference to  `_imp___ZN6Gecode9ExceptionC2EPKcS2_'
> > c:/test/mingw64-4.8/bin/../lib/gcc/i686-w64-mingw32/4.8.0/../../../../i686-w64-mingw32/bin/ld.exe: C:\Users\Mana\AppData\Local\Temp\ccUI4ffQ.o: bad reloc address 0x1e in section `.text$_ZN6Gecode15MemoryExhaustedC1Ev[__ZN6Gecode15MemoryExhaustedC1Ev]'
> > collect2.exe: error: ld returned 1 exit status
> >
> > I compiled Gecode myself on Windows using mingw. These errors occur no matter what libraries I try to link. Always the same error.
> > For example, I've tried the following command line:
> >
> > cls && g++ -isystem"C:\Program Files\Gecode\include" -L"D:\Dropbox\Stuff\Projects\gecode-4.0.0\build" -Wall -std=c++11 NoOverlap.cpp SquarePacking.cpp -lgecodedriver -lgecodeflatzinc -lgecodefloat -lgecodegist -lgecodeint -lgecodekernel -lgecodeminimodel -lgecodesearch -lgecodeset -lgecodesupport
> >
> > But it still gives the same error.
> > Any ideas?
> > _______________________________________________
> > Gecode users mailing list
> > users at gecode.org
> > https://www.gecode.org/mailman/listinfo/gecode-users
> 
> 

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