Export less symbols in the shared library.

stellarkey.cpp

@@ -10,6 +10,8 @@ using namespace std;
 typedef std::pair<AppId_t, std::string> DLC;
 #include "config.cpp"
 
+// Objects in an anonymous namespace are not exported in the shared library.
+namespace {
 class StellarISteamApps: public ISteamApps
 {
     ISteamApps* RealSteamApps;
@@ -120,6 +122,11 @@ public:
     bool BIsTimedTrial( uint32* punSecondsAllowed, uint32* punSecondsPlayed ) { return RealSteamApps->BIsTimedTrial(punSecondsAllowed, punSecondsPlayed); }
 };
 
+StellarISteamApps *StellarSteamApps = NULL;
+} // namespace {
+
+// Exported functions:
+
 S_API void *S_CALLTYPE SteamInternal_FindOrCreateUserInterface( HSteamUser hSteamUser, const char *pszVersion ) {
     void *S_CALLTYPE (*real)(HSteamUser, const char *);
     void* ret;
@@ -140,8 +147,6 @@ S_API void *S_CALLTYPE SteamInternal_FindOrCreateUserInterface( HSteamUser hStea
     return ret;
 }
 
-StellarISteamApps *StellarSteamApps = NULL;
-
 S_API ISteamApps *S_CALLTYPE SteamApps() {
     ISteamApps *S_CALLTYPE (*real)();
     ISteamApps* RealSteamApps;