Re: [Swig-user] Problem with dllimport on windows

[William S F. <ws...@fu...>]

Gerrick Bivins wrote:
> Hello, sorry for the long post, I’ve been at this for a while.
> I’ve successfully used swig to wrap a shared lib on mac, however, I 
> recently tried compiling
> on windows and I ran into a problem with my export define. I’m sure it’s 
> something simple but I haven’t been able to find a solution. I’m using 
> cmake to generate my build system.
> 
> This is the error:
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(595) : error C4430: 
> missing type specifier - int assumed. Note: C++ does not support default-int
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(596) : error C4430: 
> missing type specifier - int assumed. Note: C++ does not support default-int
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(600) : error C2071: 
> 'abstract declarator' : illegal storage class
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(606) : error C2513: 
> 'ORReader::CellDiscontinuousScalarInformation' : no variable declared 
> before '='
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(613) : error C4430: 
> missing type specifier - int assumed. Note: C++ does not support default-int
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(617) : error C2275: 
> 'ORReader::CellDiscontinuousScalarInformation' : illegal use of this 
> type as an expression
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(618) : error C2071: 
> 'abstract declarator' : illegal storage class
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(618) : error C2071: 
> 'Target of operator new()' : illegal storage class
> 1>.\CellDiscontinuousScalarInformationJAVA_wrap.cxx(618) : error C2071: 
> 'abstract declarator' : illegal storage class
> 
> The problem come from my definition of ORREADER_EXPORTS used on my class 
> like so:
> ...
> class ORREADER_EXPORTS CellDiscontinuousScalarInformation
> {
> ...
> 
> Where ORREADER_EXPORTS is defined like:
> 
> #if defined(_MSC_VER) || defined(__CYGWIN__) || defined(__MINGW32__) || 
> defined( __BCPLUSPLUS__) || defined( __MWERKS__)
> #  ifdef cellLookup_EXPORTS
> #    define ORREADER_EXPORTS  __declspec(dllexport)
> #  else
> #    define ORREADER_EXPORTS   __declspec(dllimport)
> #  endif /* cellLookup_EXPORTS   */
> #else
> #  define ORREADER_EXPORTS
> #endif
> 
> Here is my interface file:
> %module CellDiscontinuousScalarInformationModule %{ /* Includes the 
> header in the wrapper code */ #include 
> "include/CellDiscontinuousScalarInformation.h" %} /* Parse the header 
> file to generate wrappers */ %include <std_vector.i> %include 
> <std_map.i> namespace std {   %template(IntVector) std::vector<int>; 
>   %template(DoubleVector) std::vector<double>; } #ifdef SWIGWIN %include 
> <windows.i> %enddef #endif %include 
> "../include/CellDiscontinuousScalarInformation.h"
> 
> And lastly, here is my compile line from msvc:
> 
> cl /Od /I "C:\Program Files\Java\jdk1.6.0_06\include" /I "C:\Program 
> Files\Java\jdk1.6.0_06\include\win32" /I 
> "E:\work\OR_src\vis-tools\modelViewerVTK\cellPsuedoTable\wrappers" /I 
> "E:\work\OR_src\vis-tools\modelViewerVTK\cellPsuedoTable" /D "WIN32" /D 
> "_WINDOWS" /D "_DEBUG" /D "CMAKE_INTDIR=\"Debug\"" /D 
> "CellDiscontinuousScalarInformationJava_EXPORTS" /D "_WINDLL" /D "_MBCS" 
> /FD /EHsc /RTC1 /MDd 
> /Fo"CellDiscontinuousScalarInformationJava.dir\Debug\\" 
> /Fd"E:/work/OR_src/vis-tools/modelViewerVTK/cellPsuedoTable/build/wrappers/Debug/CellDiscontinuousScalarInformationJava.pdb" 
> /W3 /c /Zi /TP   /Zm1000
>   ".\CellDiscontinuousScalarInformationJAVA_wrap.cxx"
> 
> Can someone point me to an example of how to build this? From the few 
> examples I’ve found it should be easy but I’ve been stuck on this for a 
> couple of hours. Any help would be greatly appreciated.
> Gerrick
> 

Have you read about dllimport in the documentation, 
http://www.swig.org/Doc1.3/Windows.html? You probably need to #define 
ORREADER_EXPORTS to nothing.

William