Restore support for CMake < 3.11

Prior to CMake 3.11, the SOURCES could not be omitted when
calling add_executable.

This change ensures that SOURCES are passed, at least when
building against Qt < 6.2.

Change-Id: I83bd82fe12364523ce6954d145b632df7210d118
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/libs/tracing/CMakeLists.txt

@@ -32,17 +32,13 @@ set(TRACING_CPP_SOURCES
   tracing_global.h
 )
 
-add_qtc_library(Tracing
-  FEATURE_INFO
-  DEPENDS Utils Qt5::Qml Qt5::Quick
-  PUBLIC_DEPENDS Qt5::Widgets
-  SOURCES
-    ${TEST_SOURCES}
-)
-
 if(${Qt5_VERSION} VERSION_LESS "6.2.0")
-  extend_qtc_library(Tracing
+  add_qtc_library(Tracing
+    FEATURE_INFO
+    DEPENDS Utils Qt5::Qml Qt5::Quick
+    PUBLIC_DEPENDS Qt5::Widgets
     SOURCES
+      ${TEST_SOURCES}
       ${TRACING_CPP_SOURCES}
       qml/tracing.qrc
   )
@@ -51,6 +47,14 @@ else() # < Qt 6.2
     return()
   endif()
 
+  add_qtc_library(Tracing
+    FEATURE_INFO
+    DEPENDS Utils Qt5::Qml Qt5::Quick
+    PUBLIC_DEPENDS Qt5::Widgets
+    SOURCES
+      ${TEST_SOURCES}
+  )
+
   set(TRACING_QML_FILES
     qml/ButtonsBar.qml
     qml/CategoryLabel.qml

src/plugins/perfprofiler/CMakeLists.txt

@@ -38,16 +38,12 @@ set(PERFPROFILER_CPP_SOURCES
   perftracepointdialog.cpp perftracepointdialog.h perftracepointdialog.ui
 )
 
-add_qtc_plugin(PerfProfiler
-  DEPENDS Tracing Qt5::QuickWidgets
-  PLUGIN_DEPENDS Core Debugger ProjectExplorer QtSupport
-  SOURCES
-    ${TEST_SOURCES}
-)
-
 if(${Qt5_VERSION} VERSION_LESS "6.2.0")
-  extend_qtc_plugin(PerfProfiler
+  add_qtc_plugin(PerfProfiler
+    DEPENDS Tracing Qt5::QuickWidgets
+    PLUGIN_DEPENDS Core Debugger ProjectExplorer QtSupport
     SOURCES
+      ${TEST_SOURCES}
       ${PERFPROFILER_CPP_SOURCES}
       perfprofiler.qrc
   )
@@ -56,6 +52,13 @@ else() # < Qt 6.2
     return()
   endif()
 
+  add_qtc_plugin(PerfProfiler
+    DEPENDS Tracing Qt5::QuickWidgets
+    PLUGIN_DEPENDS Core Debugger ProjectExplorer QtSupport
+    SOURCES
+      ${TEST_SOURCES}
+  )
+
   qt_add_resources(PerfProfiler perfprofiler
     PREFIX "/perfprofiler"
     tracepoints.sh

src/plugins/qmlprofiler/CMakeLists.txt

@@ -69,16 +69,12 @@ set(QMLPROFILER_CPP_SOURCES
   scenegraphtimelinemodel.cpp scenegraphtimelinemodel.h
 )
 
-add_qtc_plugin(QmlProfiler
-  DEPENDS QmlDebug QmlJS Tracing Qt5::QuickWidgets
-  PLUGIN_DEPENDS Core Debugger ProjectExplorer QtSupport TextEditor
-  SOURCES
-    ${TEST_SOURCES}
-)
-
 if(${Qt5_VERSION} VERSION_LESS "6.2.0")
-  extend_qtc_plugin(QmlProfiler
+  add_qtc_plugin(QmlProfiler
+    DEPENDS QmlDebug QmlJS Tracing Qt5::QuickWidgets
+    PLUGIN_DEPENDS Core Debugger ProjectExplorer QtSupport TextEditor
     SOURCES
+      ${TEST_SOURCES}
       ${QMLPROFILER_CPP_SOURCES}
       qml/qmlprofiler.qrc
   )
@@ -87,6 +83,13 @@ else() # < Qt 6.2
     return()
   endif()
 
+  add_qtc_plugin(QmlProfiler
+    DEPENDS QmlDebug QmlJS Tracing Qt5::QuickWidgets
+    PLUGIN_DEPENDS Core Debugger ProjectExplorer QtSupport TextEditor
+    SOURCES
+      ${TEST_SOURCES}
+  )
+
   set(QMLPROFILER_QML_FILES
     qml/QmlProfilerFlameGraphView.qml
   )

tests/auto/tracing/flamegraphview/CMakeLists.txt

@@ -1,19 +1,20 @@
-add_qtc_test(tst_tracing_flamegraphview
-  DEPENDS Tracing Qt5::QuickWidgets Qt5::Quick Utils
-)
-
 set(TSTFLAMEGRAPHVIEW_CPP_SOURCES
   testflamegraphmodel.h
   tst_flamegraphview.cpp
 )
 
 if(${Qt5_VERSION} VERSION_LESS "6.2.0")
-  extend_qtc_test(tst_tracing_flamegraphview
+  add_qtc_test(tst_tracing_flamegraphview
+    DEPENDS Tracing Qt5::QuickWidgets Qt5::Quick Utils
     SOURCES
       ${TSTFLAMEGRAPHVIEW_CPP_SOURCES}
       flamegraphview.qrc
   )
 else() # < Qt 6.2
+  add_qtc_test(tst_tracing_flamegraphview
+    DEPENDS Tracing Qt5::QuickWidgets Qt5::Quick Utils
+  )
+
   qt_add_qml_module(tst_tracing_flamegraphview
     URI "QtCreator.TstTracingFlameGraphView"
     VERSION "1.0"