Index: lib/Driver/GnuLdOptions.td
===================================================================
--- lib/Driver/GnuLdOptions.td
+++ lib/Driver/GnuLdOptions.td
@@ -150,7 +150,7 @@
 def rpath_link : Separate<["-"], "rpath-link">,
      HelpText<"Specifies the first set of directories to search">,
      Group<grp_dynlibexec>;
-def export_dynamic : Flag<["--"], "export-dynamic">,
+def export_dynamic : Flag<["-", "--"], "export-dynamic">,
      HelpText<"Add all symbols to the dynamic symbol table"
               " when creating executables">,
      Group<grp_main>;