From b3bc26dc284cf73e97b88c9979d49368d07e686c Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 26 Mar 2021 16:03:29 +0200
Subject: Add support for propagating project environment

---
 libbuild2/file.hxx | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'libbuild2/file.hxx')

diff --git a/libbuild2/file.hxx b/libbuild2/file.hxx
index 0c4ad62..1c8e57e 100644
--- a/libbuild2/file.hxx
+++ b/libbuild2/file.hxx
@@ -145,6 +145,10 @@ namespace build2
   // false or the new scope is not in any project, then NULL is returned in
   // second.
   //
+  // Note that if switching the scope involved switching the project, then you
+  // may also need to switch to the new project's environment (see
+  // root_extra::environment).
+  //
   LIBBUILD2_SYMEXPORT pair<scope&, scope*>
   switch_scope (scope& root, const dir_path& out_base, bool project = true);
 
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