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/test/init.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'libbuild2/test/init.cxx')

diff --git a/libbuild2/test/init.cxx b/libbuild2/test/init.cxx
index dadbd20..539cdec 100644
--- a/libbuild2/test/init.cxx
+++ b/libbuild2/test/init.cxx
@@ -278,6 +278,12 @@ namespace build2
       //
       //@@ TODO: Pring report.
 
+      // Environment.
+      //
+      // The only external program that we currently use is diff. None of the
+      // implementations we looked at (GNU diffutils, FreeBSD) use any
+      // environment variables.
+
       // Register target types.
       //
       {
-- 
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