Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kf6-extra-cmake-modules/source/tests/ECMGenerateExportHeaderTest/library/CMakeLists.txt

@@ -0,0 +1,40 @@
+cmake_minimum_required(VERSION 3.0.0)
+
+# keep version in sync with the one used in consumer/CMakeLists.txt for the library
+# ideally would be send over by an exported target property,
+# but exporting custom properties via EXPORT_PROPERTIES only was added in CMake 3.12
+project(library VERSION 2.40.0)
+
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../../../modules)
+include(ECMGenerateExportHeader)
+
+set(_public_includedir "include/library")
+
+add_library(library library.cpp)
+target_include_directories(library
+    PUBLIC
+        "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>"
+        "$<INSTALL_INTERFACE:${_public_includedir}>"
+)
+
+if(SET_GROUP)
+    set(_group_args GROUP_BASE_NAME LIBGROUP)
+endif()
+
+ecm_generate_export_header(library
+    ${_group_args}
+    VERSION ${library_VERSION}
+    DEPRECATION_VERSIONS 2.0 2.12
+    EXCLUDE_DEPRECATED_BEFORE_AND_AT ${EXCLUDE_DEPRECATED_BEFORE_AND_AT}
+)
+
+install(TARGETS library DESTINATION lib EXPORT library_targets)
+
+install(EXPORT library_targets FILE LibraryTargets.cmake DESTINATION lib/library)
+install(FILES
+    library.hpp
+    "${CMAKE_CURRENT_BINARY_DIR}/library_export.h"
+    DESTINATION ${_public_includedir}
+)
+
+add_executable(dummy main.cpp)

local/recipes/kde/kf6-extra-cmake-modules/source/tests/ECMGenerateExportHeaderTest/library/library.cpp

@@ -0,0 +1,33 @@
+#include "library.hpp"
+
+#if LIBRARY_BUILD_DEPRECATED_SINCE(2, 0)
+void function_deprecatedAt2_0()
+{
+}
+#endif
+
+#if LIBRARY_BUILD_DEPRECATED_SINCE(2, 12)
+void function_deprecatedAt2_12()
+{
+}
+#endif
+
+void function_not_deprecated()
+{
+}
+
+#if LIBRARY_BUILD_DEPRECATED_SINCE(2, 0)
+void Class::method_deprecatedAt2_0()
+{
+}
+#endif
+
+#if LIBRARY_BUILD_DEPRECATED_SINCE(2, 12)
+void Class::method_deprecatedAt2_12()
+{
+}
+#endif
+
+void Class::method_not_deprecated()
+{
+}

local/recipes/kde/kf6-extra-cmake-modules/source/tests/ECMGenerateExportHeaderTest/library/library.hpp

@@ -0,0 +1,40 @@
+#include <library_export.h>
+
+enum Enum {
+#if LIBRARY_BUILD_DEPRECATED_SINCE(2, 0)
+    Enumerator_deprecatedAt2_0 LIBRARY_ENUMERATOR_DEPRECATED_VERSION(2, 0, "Deprecated at 2.0"),
+#endif
+    Enumerator_not_deprecated,
+#if LIBRARY_ENABLE_DEPRECATED_SINCE(2, 12)
+    Enumerator_deprecatedAt2_12 LIBRARY_ENUMERATOR_DEPRECATED_VERSION(2, 12, "Deprecated at 2.12"),
+#endif
+};
+
+#if LIBRARY_ENABLE_DEPRECATED_SINCE(2, 0)
+LIBRARY_EXPORT
+LIBRARY_DEPRECATED_VERSION(2, 0, "Deprecated at 2.0")
+void function_deprecatedAt2_0();
+#endif
+
+#if LIBRARY_ENABLE_DEPRECATED_SINCE(2, 12)
+LIBRARY_EXPORT
+LIBRARY_DEPRECATED_VERSION(2, 12, "Deprecated at 2.12")
+void function_deprecatedAt2_12();
+#endif
+
+LIBRARY_EXPORT void function_not_deprecated();
+
+class LIBRARY_EXPORT Class {
+public:
+#if LIBRARY_BUILD_DEPRECATED_SINCE(2, 0)
+    LIBRARY_DEPRECATED_VERSION(2, 0, "Deprecated at 2.0")
+    virtual void method_deprecatedAt2_0();
+#endif
+
+#if LIBRARY_BUILD_DEPRECATED_SINCE(2, 12)
+    LIBRARY_DEPRECATED_VERSION(2, 12, "Deprecated at 2.12")
+    virtual void method_deprecatedAt2_12();
+#endif
+
+    virtual void method_not_deprecated();
+};

local/recipes/kde/kf6-extra-cmake-modules/source/tests/ECMGenerateExportHeaderTest/library/main.cpp

@@ -0,0 +1,4 @@
+int main(int, char**)
+{
+    return 0;
+}