From f211934d6ff53388a806c5cc06483e9d843056e4 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 27 Jan 2021 06:14:57 +0200
Subject: Make std::map prepend (=+) overriding (like insert_or_assign())

---
 libbuild2/variable.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'libbuild2/variable.cxx')

diff --git a/libbuild2/variable.cxx b/libbuild2/variable.cxx
index 47703da..6f45e90 100644
--- a/libbuild2/variable.cxx
+++ b/libbuild2/variable.cxx
@@ -1838,6 +1838,9 @@ namespace build2
   value_traits<vector<pair<optional<string>, string>>>;
 
   template struct LIBBUILD2_DEFEXPORT
+  value_traits<vector<pair<string, optional<bool>>>>;
+
+  template struct LIBBUILD2_DEFEXPORT
   value_traits<std::map<string, string>>;
 
   template struct LIBBUILD2_DEFEXPORT
@@ -1847,5 +1850,8 @@ namespace build2
   value_traits<std::map<optional<string>, string>>;
 
   template struct LIBBUILD2_DEFEXPORT
+  value_traits<std::map<string, optional<bool>>>;
+
+  template struct LIBBUILD2_DEFEXPORT
   value_traits<std::map<project_name, dir_path>>;
 }
-- 
cgit v1.1