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/utility.hxx | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

(limited to 'libbuild2/utility.hxx')

diff --git a/libbuild2/utility.hxx b/libbuild2/utility.hxx
index 1d5c7bb..43b556e 100644
--- a/libbuild2/utility.hxx
+++ b/libbuild2/utility.hxx
@@ -21,6 +21,7 @@
 #include <unordered_set>
 
 #include <libbuild2/types.hxx>
+#include <libbuild2/forward.hxx>
 
 // "Fake" version values used during bootstrap.
 //
@@ -157,8 +158,6 @@ namespace build2
   LIBBUILD2_SYMEXPORT extern optional<path> config_sub;   // --config-sub
   LIBBUILD2_SYMEXPORT extern optional<path> config_guess; // --config-guess
 
-  class location;
-
   LIBBUILD2_SYMEXPORT void
   check_build_version (const standard_version_constraint&, const location&);
 
@@ -502,8 +501,6 @@ namespace build2
   //
   // If excl is not NULL, then filter this option out (note: case sensitive).
   //
-  struct variable;
-
   template <typename T>
   void
   append_options (cstrings&, T&, const variable&, const char* excl = nullptr);
@@ -530,9 +527,6 @@ namespace build2
 
   // As above but from the strings value directly.
   //
-  class value;
-  struct lookup;
-
   LIBBUILD2_SYMEXPORT void
   append_options (cstrings&, const lookup&, const char* excl = nullptr);
 
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