From e9f69e067da3e096e1e64be70ec2b6de30f71d2c Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 7 Apr 2021 11:33:05 +0200
Subject: Register environment variables for hermetic build configurations

---
 libbuild2/config/module.hxx | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'libbuild2/config/module.hxx')

diff --git a/libbuild2/config/module.hxx b/libbuild2/config/module.hxx
index 92fed32..543c486 100644
--- a/libbuild2/config/module.hxx
+++ b/libbuild2/config/module.hxx
@@ -173,6 +173,15 @@ namespace build2
         return nullptr;
       }
 
+      void
+      save_environment (const char* var)
+      {
+        saved_environment.insert (var);
+      }
+
+      static void
+      save_environment (scope&, const char*);
+
       config::saved_environment saved_environment;
       strings old_environment;
 
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