Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/cmake/WarnUnmaintained.cmake

@@ -0,0 +1,15 @@
+macro(warn_unmaintained name)
+  message(WARNING "[unmaintained] ${name} is unmaintained!")
+  message(WARNING "[unmaintained] use at your own risk!")
+  message(
+    WARNING
+      "[unmaintained] If problems occur please check https://github.com/FreeRDP/FreeRDP/issues for known issues, but be prepared to fix them on your own!"
+  )
+  message(WARNING "[unmaintained] Developers hang out in https://matrix.to/#/#FreeRDP:matrix.org?via=matrix.org")
+  message(
+    WARNING
+      "[unmaintained] - don't hesitate to ask some questions. (replies might take some time depending on your timezone)"
+  )
+  message(WARNING "[unmaintained] - if you intend using this component write us a message")
+  message(WARNING "[unmaintained] use ${ARGN} to disable")
+endmacro()