[PATCH] GNU LD option export-dynamic can accept single dash flag

[Davide Italiano]

Hi rui314, rafaelauler,

Some Makefiles on FreeBSD use -export-dynamic rather than --export-dynamic.
We're gonna patch them in the FreeBSD tree, but as long as this is supposed to be a drop-in replacement for GNU ld, I think supporting single dash flag is fine.

http://reviews.llvm.org/D7044

Files:
  lib/Driver/GnuLdOptions.td

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>;

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