fix(windows): add missing LINPHONE_PUBLIC on exported classes

src/conference/conference-interface.h

@@ -30,7 +30,7 @@
 
 LINPHONE_BEGIN_NAMESPACE
 
-class ConferenceInterface {
+class LINPHONE_PUBLIC ConferenceInterface {
 public:
 	virtual ~ConferenceInterface() = default;
 

src/conference/conference.h

@@ -34,7 +34,7 @@ LINPHONE_BEGIN_NAMESPACE
 
 class CallSessionPrivate;
 
-class Conference : public ConferenceInterface, public CallSessionListener {
+class LINPHONE_PUBLIC Conference : public ConferenceInterface, public CallSessionListener {
 	friend class CallSessionPrivate;
 
 public:

src/conference/remote-conference.h

@@ -26,7 +26,7 @@
 
 LINPHONE_BEGIN_NAMESPACE
 
-class RemoteConference : public Conference, public ConferenceListener {
+class LINPHONE_PUBLIC RemoteConference : public Conference, public ConferenceListener {
 public:
 	RemoteConference (LinphoneCore *core, const Address &myAddress, CallListener *listener = nullptr);
 	virtual ~RemoteConference();

src/conference/session/call-session-listener.h

@@ -23,7 +23,7 @@
 
 LINPHONE_BEGIN_NAMESPACE
 
-class CallSessionListener {
+class LINPHONE_PUBLIC CallSessionListener {
 public:
 	virtual ~CallSessionListener() = default;
 

src/conference/session/call-session.h

@@ -33,7 +33,7 @@ LINPHONE_BEGIN_NAMESPACE
 class CallPrivate;
 class CallSessionPrivate;
 
-class CallSession : public Object {
+class LINPHONE_PUBLIC CallSession : public Object {
 	friend class CallPrivate;
 	friend class ClientGroupChatRoom;
 

src/conference/session/media-session.h

@@ -30,7 +30,7 @@ class CallPrivate;
 class IceAgent;
 class MediaSessionPrivate;
 
-class MediaSession : public CallSession {
+class LINPHONE_PUBLIC MediaSession : public CallSession {
 	friend class CallPrivate;
 	friend class IceAgent;