Index: ELF/Options.td
===================================================================
--- ELF/Options.td
+++ ELF/Options.td
@@ -450,7 +450,7 @@
 // just ignore the option on lld side as it's easier. In fact, the linker could
 // be called 'ld' and understanding which linker is used would require parsing of
 // --version output.
-def plugin: J<"plugin">;
+defm plugin: Eq<"plugin", "Ignored for compatibility with GNU linkers">;
 
 def plugin_opt_fresolution_eq: J<"plugin-opt=-fresolution=">;
 def plugin_opt_pass_through_eq: J<"plugin-opt=-pass-through=">;
Index: test/ELF/ignore-plugin.test
===================================================================
--- test/ELF/ignore-plugin.test
+++ test/ELF/ignore-plugin.test
@@ -0,0 +1,2 @@
+RUN: not ld.lld --plugin foo 2>&1 | FileCheck %s
+CHECK: no input files