cmake: build minimal platform plugin

Change-Id: Icd80b33e2840ab1d34d2502bfdc3cb9116bdfba4
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

src/plugins/platforms/CMakeLists.txt

@@ -1,3 +1,7 @@
+if (NOT ANDROID)
+    add_subdirectory(minimal)
+endif()
+
 if(QT_FEATURE_xcb)
     add_subdirectory(xcb)
 endif()

src/plugins/platforms/minimal/CMakeLists.txt

@@ -0,0 +1,37 @@
+# Generated from minimal.pro.
+
+find_package(Freetype)
+
+#####################################################################
+## qminimal Plugin:
+#####################################################################
+
+add_qt_plugin(qminimal
+    TYPE platforms
+    SOURCES
+        main.cpp
+        qminimalbackingstore.cpp qminimalbackingstore.h
+        qminimalintegration.cpp qminimalintegration.h
+    DEFINES
+        QT_NO_FOREACH
+    LIBRARIES
+        Qt::CorePrivate
+        Qt::GuiPrivate
+        Qt::EventDispatcherSupportPrivate
+        Qt::FontDatabaseSupportPrivate
+    # OTHER_FILES = "minimal.json"
+    # PLUGIN_CLASS_NAME = "QMinimalIntegrationPlugin"
+    # _LOADED = "qt_plugin"
+)
+
+## Scopes:
+#####################################################################
+
+extend_target(qminimal CONDITION QT_FEATURE_freetype
+    LIBRARIES
+        Freetype::Freetype
+)
+#
+#extend_target(qminimal CONDITION NOT TARGET___equals____ss_QT_DEFAULT_QPA_PLUGIN
+#    # PLUGIN_EXTENDS = "-"
+#)