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/algorithm.hxx | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to 'libbuild2/algorithm.hxx')

diff --git a/libbuild2/algorithm.hxx b/libbuild2/algorithm.hxx
index f105fbe..5000c47 100644
--- a/libbuild2/algorithm.hxx
+++ b/libbuild2/algorithm.hxx
@@ -6,6 +6,7 @@
 #define LIBBUILD2_ALGORITHM_HXX
 
 #include <libbuild2/types.hxx>
+#include <libbuild2/forward.hxx>
 #include <libbuild2/utility.hxx>
 
 #include <libbuild2/action.hxx>
@@ -15,11 +16,6 @@
 
 namespace build2
 {
-  class scope;
-  class context;
-  class prerequisite;
-  class prerequisite_key;
-
   // The default prerequisite search implementation. It first calls the
   // prerequisite-type-specific search function. If that doesn't yeld
   // anything, it creates a new target.
-- 
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