Make it possible to disable the PrintSupport module

Introduce the 'printsupport' feature to control whether the PrintSupport
module is built.

[ChangeLog][QtPrintSupport] Building of QtPrintSupport can be disabled
by passing -no-feature-printsupport to configure.

Fixes: QTBUG-90778
Change-Id: I8a9a4b7f8dd8f39a81565c8eb14ce1ae0839267d
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Nodir Temirkhodjaev <nodir.temir@gmail.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

.prev_configure.cmake

@@ -885,6 +885,10 @@ qt_feature_config("gui" QMAKE_PUBLIC_QT_CONFIG
 qt_feature("network" PRIVATE
     LABEL "Qt Network"
 )
+qt_feature("printsupport" PRIVATE
+    LABEL "Qt PrintSupport"
+    CONDITION QT_FEATURE_widgets
+)
 qt_feature("sql" PRIVATE
     LABEL "Qt Sql"
     CONDITION QT_FEATURE_thread

configure.cmake

@@ -898,6 +898,10 @@ qt_feature_config("gui" QMAKE_PUBLIC_QT_CONFIG
 qt_feature("network" PRIVATE
     LABEL "Qt Network"
 )
+qt_feature("printsupport" PRIVATE
+    LABEL "Qt PrintSupport"
+    CONDITION QT_FEATURE_widgets
+)
 qt_feature("sql" PRIVATE
     LABEL "Qt Sql"
     CONDITION QT_FEATURE_thread

configure.json

@@ -1344,6 +1344,11 @@
             "label": "Qt Network",
             "output": [ "privateFeature" ]
         },
+        "printsupport": {
+            "label": "Qt PrintSupport",
+            "condition": "features.widgets",
+            "output": [ "privateFeature" ]
+        },
         "sql": {
             "label": "Qt Sql",
             "condition": "features.thread",

src/CMakeLists.txt

@@ -67,7 +67,7 @@ endif()
 if (QT_FEATURE_testlib)
     add_subdirectory(testlib)
 endif()
-if(QT_FEATURE_gui AND QT_FEATURE_widgets)
+if(QT_FEATURE_printsupport)
    add_subdirectory(printsupport)
 endif()
 add_subdirectory(plugins)