Patch #973204: Use -rpath instead of -R on Irix and Tru64.
diff --git a/Lib/distutils/ccompiler.py b/Lib/distutils/ccompiler.py
index a3b1ffa..e5b9d7c 100644
--- a/Lib/distutils/ccompiler.py
+++ b/Lib/distutils/ccompiler.py
@@ -1241,7 +1241,11 @@
         lib_opts.append (compiler.library_dir_option (dir))
 
     for dir in runtime_library_dirs:
-        lib_opts.append (compiler.runtime_library_dir_option (dir))
+        opt = compiler.runtime_library_dir_option (dir)
+        if type(opt) is ListType:
+            lib_opts = lib_opts + opt
+        else:
+            lib_opts.append (opt)
 
     # XXX it's important that we *not* remove redundant library mentions!
     # sometimes you really do have to say "-lfoo -lbar -lfoo" in order to