From e5d4c47040e526f0302a53c75ccf1f8c3f5981a1 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 29 Oct 2019 14:17:30 +0200
Subject: Add forward declaration header for build state types

---
 libbuild2/variable.hxx | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'libbuild2/variable.hxx')

diff --git a/libbuild2/variable.hxx b/libbuild2/variable.hxx
index 51cdf49..6a2c681 100644
--- a/libbuild2/variable.hxx
+++ b/libbuild2/variable.hxx
@@ -14,6 +14,7 @@
 #include <libbutl/multi-index.mxx> // map_key
 
 #include <libbuild2/types.hxx>
+#include <libbuild2/forward.hxx>
 #include <libbuild2/utility.hxx>
 
 #include <libbuild2/context.hxx>
@@ -34,10 +35,6 @@ namespace build2
   //    during a phase other than load must make sure the variable has already
   //    been typified.
 
-  class value;
-  struct variable;
-  struct lookup;
-
   struct value_type
   {
     const char* name;  // Type name for diagnostics.
@@ -481,8 +478,6 @@ namespace build2
   // A variable can be undefined, NULL, or contain a (potentially empty)
   // value.
   //
-  class variable_map;
-
   struct lookup
   {
     using value_type = build2::value;
-- 
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