Do not build KWin::SessionManager for the time being

KSessionManager is deprecated and there is no replacement yet. So
let's get rid of the warnings for now. Needs to be re-added once
there is a working QSessionManager again.

main.cpp

@@ -496,7 +496,10 @@ KDE_EXPORT int kdemain(int argc, char * argv[])
     a.start();
 
     ksmserver.resumeStartup(QStringLiteral(KWIN_NAME));
+#warning SessionManager needs porting
+#if KWIN_QT5_PORTING
     KWin::SessionManager weAreIndeed;
+#endif
     KWin::SessionSaveDoneHelper helper;
 #warning insertCatalog needs porting
 #if KWIN_QT5_PORTING

sm.cpp

@@ -32,11 +32,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <QDebug>
 #include <QSocketNotifier>
 #include <QSessionManager>
-#include <KDE/KApplication>
 
 namespace KWin
 {
 
+#if KWIN_QT5_PORTING
 bool SessionManager::saveState(QSessionManager& sm)
 {
     // If the session manager is ksmserver, save stacking
@@ -75,6 +75,7 @@ bool SessionManager::commitData(QSessionManager& sm)
         Workspace::self()->sessionSaveStarted();
     return true;
 }
+#endif
 
 // Workspace
 

sm.h

@@ -23,7 +23,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define KWIN_SM_H
 
 #include <QDataStream>
+#include <kwinglobals.h>
+#include <QStringList>
+#if KWIN_QT5_PORTING
 #include <ksessionmanager.h>
+#endif
 #include <netwm_def.h>
 #include <QRect>
 
@@ -97,7 +101,7 @@ private:
     SmcConn conn;
 };
 
-
+#if KWIN_QT5_PORTING
 class SessionManager
     : public KSessionManager
 {
@@ -105,6 +109,7 @@ public:
     virtual bool saveState(QSessionManager& sm);
     virtual bool commitData(QSessionManager& sm);
 };
+#endif
 
 } // namespace