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

---
 build2/b.cli | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'build2/b.cli')

diff --git a/build2/b.cli b/build2/b.cli
index a24837c..0ce0f9e 100644
--- a/build2/b.cli
+++ b/build2/b.cli
@@ -724,7 +724,12 @@ namespace build2
   \h|EXIT STATUS|
 
   Non-zero exit status is returned in case of an error.
+  "
 
+  // NOTE: remember to update --build2-metadata output if adding any relevant
+  //       new environment variables.
+  //
+  "
   \h|ENVIRONMENT|
 
   The \cb{HOME} environment variable is used to determine the user's home
@@ -739,5 +744,6 @@ namespace build2
 
   The \cb{BUILD2_DEF_OPT} environment variable is used to suppress loading of
   default options files in nested build system driver invocations. Its values
-  are \cb{false} or \cb{0} to suppress and \cb{true} or \cb{1} to load."
+  are \cb{false} or \cb{0} to suppress and \cb{true} or \cb{1} to load.
+  "
 }
-- 
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