Re: Re: mingw DLL problem

On Saturday 03 November 2007, Cesar Strauss wrote:
> It worked for me, with some adjustments. See the attached
> tarball. The files I modified were interface.h (export
> desired symbols) and the Makefile (create and use an "import
> library").

The list removes non-text attachments.  Here are interface.h and 
Makefile, from Cesar's tarball.

Try it again.......

=======interface.h==================
  #if defined(__MINGW32__)
#  ifdef BUILDING_AOUT
#    define AOUT_EXTERN extern __declspec(dllexport)
#  else
#    define AOUT_EXTERN extern __declspec(dllimport)
#  endif
#else
# define AOUT_EXTERN extern
#endif

struct THING {
virtual int stuff() = 0;
};

AOUT_EXTERN int bar();

AOUT_EXTERN THING* x;


===========Makefile===========
  all: a.out.exe my_dll.dll my_other_dll.dll

a.out.exe : main.o
        g++ -o a.out.exe main.o

main.o : main.cc interface.h
        g++ -c main.cc -DBUILDING_AOUT -o main.o

libaout.a: main.o
        dlltool -l libaout.a -D a.out.exe main.o

my_dll.dll : my_dll.cc interface.h libaout.a
        g++ -shared my_dll.cc -L. -laout -o my_dll.dll

my_other_dll.dll : my_other_dll.cc interface.h libaout.a
        g++ -shared my_other_dll.cc -L. -laout -o 
my_other_dll.dll

clean:
        rm -f *.o *.a *.exe *.dll