1 files changed, 23 insertions, 0 deletions
diff --git a/libcpp/init.c b/libcpp/init.c
index 76882bc..fc82658 100644
--- a/libcpp/init.c
+++ b/libcpp/init.c
@@ -843,4 +843,27 @@ post_options (cpp_reader *pfile)
       CPP_OPTION (pfile, trigraphs) = 0;
       CPP_OPTION (pfile, warn_trigraphs) = 0;
     }
+
+  if (CPP_OPTION (pfile, module_directives))
+    {
+      /* These unspellable tokens have a leading space.  */
+      const char *const inits[spec_nodes::M_HWM]
+	= {"export ", "module ", "import ", "__import"};
+
+      for (int ix = 0; ix != spec_nodes::M_HWM; ix++)
+	{
+	  cpp_hashnode *node = cpp_lookup (pfile, UC (inits[ix]),
+					   strlen (inits[ix]));
+
+	  /* Token we pass to the compiler.  */
+	  pfile->spec_nodes.n_modules[ix][1] = node;
+
+	  if (ix != spec_nodes::M__IMPORT)
+	    /* Token we recognize when lexing, drop the trailing ' '.  */
+	    node = cpp_lookup (pfile, NODE_NAME (node), NODE_LEN (node) - 1);
+
+	  node->flags |= NODE_MODULE;
+	  pfile->spec_nodes.n_modules[ix][0] = node;
+	}
+    }
 }