--- a/test/module.defs	2020-06-13 15:05:35.000000000 +0100
+++ a/test/module.defs	2020-07-03 11:15:53.951205608 +0100
@@ -30,6 +30,10 @@ 
 endif
 endif
 
+ifeq (1,$(FEATURE.x265))
+    TEST.GCC.l += x265
+endif
+
 ifeq (1,$(FEATURE.flatpak))
     TEST.GCC.l += glib-2.0
 endif