From 9eb7d6b84e742ac2fb60ecc00b3124ec8138bf0d Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Mon, 19 Dec 2016 19:14:33 -0700
Subject: [PATCH] fix uses of namespace context without ensuring prepared

Closes #1530
---
 racket/src/racket/src/env.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/racket/src/racket/src/env.c b/racket/src/racket/src/env.c
index 78df15e9a7..a4542e9a55 100644
--- a/racket/src/racket/src/env.c
+++ b/racket/src/racket/src/env.c
@@ -1599,6 +1599,7 @@ void scheme_shadow(Scheme_Env *env, Scheme_Object *n, Scheme_Object *val, int as
   if (!id) {
     if (env->module)
       return;
+    scheme_prepare_env_stx_context(env);
     id = scheme_datum_to_syntax(n, scheme_false, scheme_false, 0, 0);
     id = scheme_stx_add_module_context(id, env->stx_context);
   }
@@ -1866,6 +1867,7 @@ namespace_identifier(int argc, Scheme_Object *argv[])
   obj = argv[0];
   obj = scheme_datum_to_syntax(obj, scheme_false, scheme_false, 1, 0);
 
+  scheme_prepare_env_stx_context(genv);
   obj = scheme_stx_add_module_context(obj, genv->stx_context);
 
   return obj;