Fix build with statemachine feature disabled

The sources of the state machine are excluded completely at the build
system level instead of littering them with #ifs.

All remaining usages of QT_NO_STATEMACHINE are converted to
QT_CONFIG(statemachine) or a QT_REQUIRE_CONFIG(statemachine).

Also make the qeventtransition feature dependent on statemachine.

Change-Id: Ib05c7ca263a02042523fff8f794fa87342df1069
Reviewed-by: Jake Petroules <jake.petroules@qt.io>

26 files changed, 34 insertions, 95 deletions

diff --git a/src/corelib/statemachine/qabstractstate.cpp b/src/corelib/statemachine/qabstractstate.cpp
index 13b669d3f6..13bf41faa9 100644
--- a/src/corelib/statemachine/qabstractstate.cpp
+++ b/src/corelib/statemachine/qabstractstate.cpp
@@ -38,9 +38,6 @@
 ****************************************************************************/
 
 #include "qabstractstate.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include "qabstractstate_p.h"
 #include "qstate.h"
 #include "qstate_p.h"
@@ -237,5 +234,3 @@ bool QAbstractState::event(QEvent *e)
 }
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qabstractstate.h b/src/corelib/statemachine/qabstractstate.h
index 24e312ac5b..02c7d9e830 100644
--- a/src/corelib/statemachine/qabstractstate.h
+++ b/src/corelib/statemachine/qabstractstate.h
@@ -42,10 +42,9 @@
 
 #include <QtCore/qobject.h>
 
-QT_BEGIN_NAMESPACE
-
+QT_REQUIRE_CONFIG(statemachine);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QState;
 class QStateMachine;
@@ -84,8 +83,6 @@ private:
     Q_DECLARE_PRIVATE(QAbstractState)
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qabstractstate_p.h b/src/corelib/statemachine/qabstractstate_p.h
index 552125f95a..11befc187e 100644
--- a/src/corelib/statemachine/qabstractstate_p.h
+++ b/src/corelib/statemachine/qabstractstate_p.h
@@ -51,13 +51,11 @@
 // We mean it.
 //
 
-#include <QtCore/qglobal.h>
-
-#ifndef QT_NO_STATEMACHINE
-
 #include <private/qobject_p.h>
 #include <QtCore/qabstractstate.h>
 
+QT_REQUIRE_CONFIG(statemachine);
+
 QT_BEGIN_NAMESPACE
 
 class QStateMachine;
@@ -98,6 +96,4 @@ public:
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_STATEMACHINE
-
 #endif // QABSTRACTSTATE_P_H
diff --git a/src/corelib/statemachine/qabstracttransition.cpp b/src/corelib/statemachine/qabstracttransition.cpp
index 42d1342e10..8c30d5f11c 100644
--- a/src/corelib/statemachine/qabstracttransition.cpp
+++ b/src/corelib/statemachine/qabstracttransition.cpp
@@ -38,9 +38,6 @@
 ****************************************************************************/
 
 #include "qabstracttransition.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include "qabstracttransition_p.h"
 #include "qabstractstate.h"
 #include "qhistorystate.h"
@@ -434,5 +431,3 @@ bool QAbstractTransition::event(QEvent *e)
 }
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qabstracttransition.h b/src/corelib/statemachine/qabstracttransition.h
index 41acaa643b..b86d26e969 100644
--- a/src/corelib/statemachine/qabstracttransition.h
+++ b/src/corelib/statemachine/qabstracttransition.h
@@ -44,10 +44,9 @@
 
 #include <QtCore/qlist.h>
 
-QT_BEGIN_NAMESPACE
-
+QT_REQUIRE_CONFIG(statemachine);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QEvent;
 class QAbstractState;
@@ -113,8 +112,6 @@ private:
     Q_DECLARE_PRIVATE(QAbstractTransition)
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qabstracttransition_p.h b/src/corelib/statemachine/qabstracttransition_p.h
index fd7a9dc311..e11514670e 100644
--- a/src/corelib/statemachine/qabstracttransition_p.h
+++ b/src/corelib/statemachine/qabstracttransition_p.h
@@ -57,6 +57,8 @@
 #include <QtCore/qvector.h>
 #include <QtCore/qsharedpointer.h>
 
+QT_REQUIRE_CONFIG(statemachine);
+
 QT_BEGIN_NAMESPACE
 
 class QAbstractState;
diff --git a/src/corelib/statemachine/qeventtransition.cpp b/src/corelib/statemachine/qeventtransition.cpp
index ecf40e9c9c..cd0cfe2f85 100644
--- a/src/corelib/statemachine/qeventtransition.cpp
+++ b/src/corelib/statemachine/qeventtransition.cpp
@@ -38,9 +38,6 @@
 ****************************************************************************/
 
 #include "qeventtransition.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include "qeventtransition_p.h"
 #include "qstate.h"
 #include "qstate_p.h"
@@ -255,5 +252,3 @@ bool QEventTransition::event(QEvent *e)
 }
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qeventtransition.h b/src/corelib/statemachine/qeventtransition.h
index 454ad1199c..3c66e72658 100644
--- a/src/corelib/statemachine/qeventtransition.h
+++ b/src/corelib/statemachine/qeventtransition.h
@@ -43,10 +43,9 @@
 #include <QtCore/qabstracttransition.h>
 #include <QtCore/qcoreevent.h>
 
-QT_BEGIN_NAMESPACE
-
+QT_REQUIRE_CONFIG(qeventtransition);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QEventTransitionPrivate;
 class Q_CORE_EXPORT QEventTransition : public QAbstractTransition
@@ -81,8 +80,6 @@ private:
     Q_DECLARE_PRIVATE(QEventTransition)
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qeventtransition_p.h b/src/corelib/statemachine/qeventtransition_p.h
index 020a2f9cba..e30e12bc8d 100644
--- a/src/corelib/statemachine/qeventtransition_p.h
+++ b/src/corelib/statemachine/qeventtransition_p.h
@@ -53,6 +53,8 @@
 
 #include "private/qabstracttransition_p.h"
 
+QT_REQUIRE_CONFIG(qeventtransition);
+
 QT_BEGIN_NAMESPACE
 
 class QEventTransition;
diff --git a/src/corelib/statemachine/qfinalstate.cpp b/src/corelib/statemachine/qfinalstate.cpp
index efcb364794..bef9fc4239 100644
--- a/src/corelib/statemachine/qfinalstate.cpp
+++ b/src/corelib/statemachine/qfinalstate.cpp
@@ -39,8 +39,6 @@
 
 #include "qfinalstate_p.h"
 
-#ifndef QT_NO_STATEMACHINE
-
 QT_BEGIN_NAMESPACE
 
 /*!
@@ -139,5 +137,3 @@ bool QFinalState::event(QEvent *e)
 }
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qfinalstate.h b/src/corelib/statemachine/qfinalstate.h
index 9b6b193231..1563bef397 100644
--- a/src/corelib/statemachine/qfinalstate.h
+++ b/src/corelib/statemachine/qfinalstate.h
@@ -42,9 +42,9 @@
 
 #include <QtCore/qabstractstate.h>
 
-QT_BEGIN_NAMESPACE
+QT_REQUIRE_CONFIG(statemachine);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QFinalStatePrivate;
 class Q_CORE_EXPORT QFinalState : public QAbstractState
@@ -68,8 +68,6 @@ private:
     Q_DECLARE_PRIVATE(QFinalState)
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qfinalstate_p.h b/src/corelib/statemachine/qfinalstate_p.h
index 74640289f1..57de703fe9 100644
--- a/src/corelib/statemachine/qfinalstate_p.h
+++ b/src/corelib/statemachine/qfinalstate_p.h
@@ -48,7 +48,7 @@
 #include "qfinalstate.h"
 #include "private/qabstractstate_p.h"
 
-#ifndef QT_NO_STATEMACHINE
+QT_REQUIRE_CONFIG(statemachine);
 
 QT_BEGIN_NAMESPACE
 
@@ -63,6 +63,4 @@ public:
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_STATEMACHINE
-
 #endif // QFINALSTATE_P_H
diff --git a/src/corelib/statemachine/qhistorystate.cpp b/src/corelib/statemachine/qhistorystate.cpp
index 338c89c688..b1c5a92d00 100644
--- a/src/corelib/statemachine/qhistorystate.cpp
+++ b/src/corelib/statemachine/qhistorystate.cpp
@@ -38,9 +38,6 @@
 ****************************************************************************/
 
 #include "qhistorystate.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include "qhistorystate_p.h"
 
 QT_BEGIN_NAMESPACE
@@ -313,5 +310,3 @@ bool QHistoryState::event(QEvent *e)
 */
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qhistorystate.h b/src/corelib/statemachine/qhistorystate.h
index 89d4d7a9e4..c20053abf6 100644
--- a/src/corelib/statemachine/qhistorystate.h
+++ b/src/corelib/statemachine/qhistorystate.h
@@ -42,10 +42,9 @@
 
 #include <QtCore/qabstractstate.h>
 
-QT_BEGIN_NAMESPACE
-
+QT_REQUIRE_CONFIG(statemachine);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QAbstractTransition;
 class QHistoryStatePrivate;
@@ -91,8 +90,6 @@ private:
     Q_DECLARE_PRIVATE(QHistoryState)
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qhistorystate_p.h b/src/corelib/statemachine/qhistorystate_p.h
index ae9ed431cb..4a4442d7dd 100644
--- a/src/corelib/statemachine/qhistorystate_p.h
+++ b/src/corelib/statemachine/qhistorystate_p.h
@@ -52,13 +52,12 @@
 //
 
 #include "private/qabstractstate_p.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include <QtCore/qabstracttransition.h>
 #include <QtCore/qhistorystate.h>
 #include <QtCore/qlist.h>
 
+QT_REQUIRE_CONFIG(statemachine);
+
 QT_BEGIN_NAMESPACE
 
 class QHistoryStatePrivate : public QAbstractStatePrivate
@@ -95,6 +94,4 @@ protected:
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_STATEMACHINE
-
 #endif // QHISTORYSTATE_P_H
diff --git a/src/corelib/statemachine/qsignaleventgenerator_p.h b/src/corelib/statemachine/qsignaleventgenerator_p.h
index 92b1ee3b70..271f6317bd 100644
--- a/src/corelib/statemachine/qsignaleventgenerator_p.h
+++ b/src/corelib/statemachine/qsignaleventgenerator_p.h
@@ -54,6 +54,8 @@
 #include <QtCore/private/qglobal_p.h>
 #include <QtCore/qobject.h>
 
+QT_REQUIRE_CONFIG(statemachine);
+
 QT_BEGIN_NAMESPACE
 
 class QStateMachine;
diff --git a/src/corelib/statemachine/qsignaltransition.cpp b/src/corelib/statemachine/qsignaltransition.cpp
index c4ba8e5315..3b219bda53 100644
--- a/src/corelib/statemachine/qsignaltransition.cpp
+++ b/src/corelib/statemachine/qsignaltransition.cpp
@@ -38,9 +38,6 @@
 ****************************************************************************/
 
 #include "qsignaltransition.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include "qsignaltransition_p.h"
 #include "qstate.h"
 #include "qstate_p.h"
@@ -287,5 +284,3 @@ void QSignalTransitionPrivate::callOnTransition(QEvent *e)
 
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qsignaltransition.h b/src/corelib/statemachine/qsignaltransition.h
index d7cf8584da..97c2916d9a 100644
--- a/src/corelib/statemachine/qsignaltransition.h
+++ b/src/corelib/statemachine/qsignaltransition.h
@@ -43,10 +43,9 @@
 #include <QtCore/qabstracttransition.h>
 #include <QtCore/qmetaobject.h>
 
-QT_BEGIN_NAMESPACE
-
+QT_REQUIRE_CONFIG(statemachine);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QSignalTransitionPrivate;
 class Q_CORE_EXPORT QSignalTransition : public QAbstractTransition
@@ -95,8 +94,6 @@ private:
     Q_DECLARE_PRIVATE(QSignalTransition)
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qsignaltransition_p.h b/src/corelib/statemachine/qsignaltransition_p.h
index 6820bf3bcb..f270a5be4a 100644
--- a/src/corelib/statemachine/qsignaltransition_p.h
+++ b/src/corelib/statemachine/qsignaltransition_p.h
@@ -53,6 +53,8 @@
 
 #include "private/qabstracttransition_p.h"
 
+QT_REQUIRE_CONFIG(statemachine);
+
 QT_BEGIN_NAMESPACE
 
 class QSignalTransition;
diff --git a/src/corelib/statemachine/qstate.cpp b/src/corelib/statemachine/qstate.cpp
index cae6474c32..48456424cf 100644
--- a/src/corelib/statemachine/qstate.cpp
+++ b/src/corelib/statemachine/qstate.cpp
@@ -38,9 +38,6 @@
 ****************************************************************************/
 
 #include "qstate_p.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include "qhistorystate.h"
 #include "qhistorystate_p.h"
 #include "qabstracttransition.h"
@@ -602,5 +599,3 @@ bool QState::event(QEvent *e)
 */
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qstate.h b/src/corelib/statemachine/qstate.h
index 7a9dc9c132..33f84c2de0 100644
--- a/src/corelib/statemachine/qstate.h
+++ b/src/corelib/statemachine/qstate.h
@@ -44,10 +44,9 @@
 #include <QtCore/qlist.h>
 #include <QtCore/qmetaobject.h>
 
-QT_BEGIN_NAMESPACE
-
+QT_REQUIRE_CONFIG(statemachine);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QAbstractTransition;
 class QSignalTransition;
@@ -130,8 +129,6 @@ private:
     Q_DECLARE_PRIVATE(QState)
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qstate_p.h b/src/corelib/statemachine/qstate_p.h
index 913657e53b..7fb40392e7 100644
--- a/src/corelib/statemachine/qstate_p.h
+++ b/src/corelib/statemachine/qstate_p.h
@@ -59,7 +59,7 @@
 #include <QtCore/qpointer.h>
 #include <QtCore/qvariant.h>
 
-#ifndef QT_NO_STATEMACHINE
+QT_REQUIRE_CONFIG(statemachine);
 
 QT_BEGIN_NAMESPACE
 
@@ -124,6 +124,4 @@ public:
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_STATEMACHINE
-
 #endif
diff --git a/src/corelib/statemachine/qstatemachine.cpp b/src/corelib/statemachine/qstatemachine.cpp
index db395b24dd..433f595611 100644
--- a/src/corelib/statemachine/qstatemachine.cpp
+++ b/src/corelib/statemachine/qstatemachine.cpp
@@ -38,9 +38,6 @@
 ****************************************************************************/
 
 #include "qstatemachine.h"
-
-#ifndef QT_NO_STATEMACHINE
-
 #include "qstate.h"
 #include "qstate_p.h"
 #include "qstatemachine_p.h"
@@ -3235,5 +3232,3 @@ QT_END_NAMESPACE
 
 #include "qstatemachine.moc"
 #include "moc_qstatemachine.cpp"
-
-#endif //QT_NO_STATEMACHINE
diff --git a/src/corelib/statemachine/qstatemachine.h b/src/corelib/statemachine/qstatemachine.h
index 031d9ceee2..4f31252eed 100644
--- a/src/corelib/statemachine/qstatemachine.h
+++ b/src/corelib/statemachine/qstatemachine.h
@@ -48,10 +48,9 @@
 #include <QtCore/qset.h>
 #include <QtCore/qvariant.h>
 
-QT_BEGIN_NAMESPACE
-
+QT_REQUIRE_CONFIG(statemachine);
 
-#ifndef QT_NO_STATEMACHINE
+QT_BEGIN_NAMESPACE
 
 class QStateMachinePrivate;
 class QAbstractAnimation;
@@ -183,8 +182,6 @@ private:
     Q_PRIVATE_SLOT(d_func(), void _q_killDelayedEventTimer(int, int))
 };
 
-#endif //QT_NO_STATEMACHINE
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/statemachine/qstatemachine_p.h b/src/corelib/statemachine/qstatemachine_p.h
index 45634e27fb..9418813afd 100644
--- a/src/corelib/statemachine/qstatemachine_p.h
+++ b/src/corelib/statemachine/qstatemachine_p.h
@@ -63,6 +63,8 @@
 #include <QtCore/qvector.h>
 #include <private/qfreelist_p.h>
 
+QT_REQUIRE_CONFIG(statemachine);
+
 QT_BEGIN_NAMESPACE
 
 class QEvent;
diff --git a/src/corelib/statemachine/statemachine.pri b/src/corelib/statemachine/statemachine.pri
index 52df10a3bc..ee701ebc37 100644
--- a/src/corelib/statemachine/statemachine.pri
+++ b/src/corelib/statemachine/statemachine.pri
@@ -1,3 +1,5 @@
+!qtConfig(statemachine): return()
+
 HEADERS += $$PWD/qstatemachine.h \
 	   $$PWD/qstatemachine_p.h \
 	   $$PWD/qsignaleventgenerator_p.h \