From ddb7dbbb37475d77e53e813472f9e28d05195714 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 30 Aug 2019 16:11:44 +0200
Subject: Make build_installed const

---
 libbuild2/utility-installed.cxx   | 2 +-
 libbuild2/utility-uninstalled.cxx | 2 +-
 libbuild2/utility.hxx             | 5 ++---
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/libbuild2/utility-installed.cxx b/libbuild2/utility-installed.cxx
index 5ef8811..9135c21 100644
--- a/libbuild2/utility-installed.cxx
+++ b/libbuild2/utility-installed.cxx
@@ -10,7 +10,7 @@
 
 namespace build2
 {
-  bool build_installed = true;
+  const bool build_installed = true;
 }
 
 #endif
diff --git a/libbuild2/utility-uninstalled.cxx b/libbuild2/utility-uninstalled.cxx
index b4bbe93..0006e1a 100644
--- a/libbuild2/utility-uninstalled.cxx
+++ b/libbuild2/utility-uninstalled.cxx
@@ -6,5 +6,5 @@
 
 namespace build2
 {
-  bool build_installed = false;
+  const bool build_installed = false;
 }
diff --git a/libbuild2/utility.hxx b/libbuild2/utility.hxx
index e4b5bcb..f6b6d3a 100644
--- a/libbuild2/utility.hxx
+++ b/libbuild2/utility.hxx
@@ -144,7 +144,7 @@ namespace build2
 
   // Whether running installed build.
   //
-  LIBBUILD2_SYMEXPORT extern bool build_installed;
+  LIBBUILD2_SYMEXPORT extern const bool build_installed;
 
   // --[no-]mtime-check
   //
@@ -169,8 +169,7 @@ namespace build2
   // state dump). If it is empty, then relative() below returns the original
   // path.
   //
-  // @@ CTX: this could be an issue if changed concurrently from several
-  //         contexts.
+  // Note: watch out for concurrent changes from multiple build contexts.
   //
   LIBBUILD2_SYMEXPORT extern const dir_path* relative_base;
 
-- 
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