[Whistler]

...I'm doing this in current YaPB:

#ifdef _WIN32
#ifdef __BORLANDC__
extern "C" DLLEXPORT void WINAPI GiveFnptrsToDll(enginefuncs_t* pengfuncsFromEngine, globalvars_t *pGlobals)
#else
void WINAPI GiveFnptrsToDll( enginefuncs_t* pengfuncsFromEngine, globalvars_t *pGlobals )
#endif
#else
extern "C" DLLEXPORT void GiveFnptrsToDll( enginefuncs_t* pengfuncsFromEngine, globalvars_t *pGlobals )
#endif
{
   // get the engine functions from the engine...
   memcpy(&g_engfuncs, pengfuncsFromEngine, sizeof(enginefuncs_t));
   gpGlobals = pGlobals;

   if (g_bIsMMPlugin)
      return; // we needn't load the game DLL if we're running in Metamod

   char szGameDLLName[256];
   GetGameDirectory(szGameDLLName);

   // load the actual Counter-Strike Game DLL
#ifdef _WIN32
   strcat(szGameDLLName, "/dlls/mp.dll");
   h_Library = LoadLibrary(szGameDLLName);
#else
   strcat(szGameDLLName, "/dlls/cs_i386.so");
   h_Library = dlopen(szGameDLLName, RTLD_NOW);
#endif

   if (!h_Library)
   {
      // try to extract the game DLL out of the Steam cache
      int size;
#ifdef _WIN32
      unsigned char *filebuf = LOAD_FILE_FOR_ME("dlls/mp.dll", &size);
#else
      unsigned char *filebuf = LOAD_FILE_FOR_ME("dlls/cs_i386.so", &size);
#endif

      if (filebuf)
      {
         CreatePath(szGameDLLName);

         FILE *fp = fopen(szGameDLLName, "wb");
         if (fp)
         {
            // dump the file and close it
            fwrite(filebuf, size, 1, fp);
            fclose(fp);
         }
         FREE_FILE(filebuf);
      }

#ifdef _WIN32
      h_Library = LoadLibrary(szGameDLLName);
#else
      h_Library = dlopen(szGameDLLName, RTLD_NOW);
#endif
   }

   if (!h_Library)
      TerminateOnError("Fail to load game DLL !");

   other_GetEntityAPI = (GETENTITYAPI)GetProcAddress(h_Library, "GetEntityAPI");
   other_GetNewDLLFunctions = (GETNEWDLLFUNCTIONS)GetProcAddress(h_Library, "GetNewDLLFunctions");
   other_GiveFnptrsToDll = (GIVEFNPTRSTODLL)GetProcAddress(h_Library, "GiveFnptrsToDll");

   GetEngineFunctions(pengfuncsFromEngine, NULL);

#ifdef _WIN32
   LoadSymbols(szGameDLLName);  // Load exported symbol table
   pengfuncsFromEngine->pfnFunctionFromName = FunctionFromName;
   pengfuncsFromEngine->pfnNameForFunction = NameForFunction;
#endif

   // give the engine functions to the other DLL...
   (*other_GiveFnptrsToDll)(pengfuncsFromEngine, pGlobals);
}