What you're trying to do is possible without .def files or import files or whatever.
Just put something like this in sqlite3.h before everything: #ifdef _WIN32 #define S3EXPORT __declspec(dllexport) #define S3IMPORT __declspec(dllimport) #define S3CALL __stdcall #ifdef _S3_USER_DLL_IMPLEMENTATION_ #define S3IMPEXP S3EXPORT #else #define S3IMPEXP S3IMPORT #endif #else #define S3EXPORT #define S3IMPORT #define S3CALL #define S3IMPEXP #endif And annotate your exportable function declarations and implementations accordingly. When you compile sqlite3.dll or sqlite3.exe you compile with -U_S3_USER_DLL_IMPLEMENTATION_ or simply do not define it. When a user compiles their own code/DLL they must compile with this flag: -D_S3_USER_DLL_IMPLEMENTATION_ For every single function that you want accessible to 3rd party DLLs you must prepend with the S3CALL macro just before the function name - this also includes function pointers. Before the return code you need to prepend the S3IMPEXP macro. S3IMPEXP int S3CALL sqlite3_open( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb /* OUT: SQLite db handle */ ); Each User DLL must have well known function(s) for sqlite to call the user's code. They must be declared as follows: S3EXPORT int S3CALL MyExampleDllEntryPoint(int whatever); This is a good source of information of how to make Java JNI DLLs with MinGW - basically the same thing you're trying to do: http://www.mingw.org/mingwfaq.shtml#faq-jni-dll Notice that a .def file is nowhere to be seen. All this symbol import/export nonsense does have advantages - it speeds up the loading/linking of symbols in shared libraries, and it reduces symbol pollution when you have to dynamically load/link several shared libraries into the same program, reducing the chance of symbol collision. GCC has recognized this fact and has added a similar feature to its compiler: http://gcc.gnu.org/wiki/Visibility __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
