From e3e597180487328a54721e2afb95e33ed853d586 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 1 Feb 2017 16:36:24 +0200
Subject: Pass const scope& where modification should not happen

---
 build2/scope.cxx | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'build2/scope.cxx')

diff --git a/build2/scope.cxx b/build2/scope.cxx
index 9514817..0c80052 100644
--- a/build2/scope.cxx
+++ b/build2/scope.cxx
@@ -691,10 +691,15 @@ namespace build2
       pr.first->second.get (), pr.second);
   }
 
+  scope* scope::global_;
+
   // scope_map
   //
-  scope_map scopes;
-  scope* global_scope;
+  scope_map scope_map::instance;
+  const scope_map& scope_map::cinstance = scope_map::instance;
+  const scope_map& scopes = scope_map::cinstance;
+
+  const scope* global_scope;
 
   auto scope_map::
   insert (const dir_path& k, bool root) -> iterator
-- 
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