From 66438e8e5f6fcf77ef6d4c32fda000168b37cd7a Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 3 Jun 2022 10:34:18 +0200
Subject: Move config::variable_visibility to separate types.hxx header

---
 libbuild2/config/types.hxx   | 25 +++++++++++++++++++++++++
 libbuild2/config/utility.hxx | 10 ++--------
 2 files changed, 27 insertions(+), 8 deletions(-)
 create mode 100644 libbuild2/config/types.hxx

diff --git a/libbuild2/config/types.hxx b/libbuild2/config/types.hxx
new file mode 100644
index 0000000..3cdc5e3
--- /dev/null
+++ b/libbuild2/config/types.hxx
@@ -0,0 +1,25 @@
+// file      : libbuild2/config/types.hxx -*- C++ -*-
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef LIBBUILD2_CONFIG_TYPES_HXX
+#define LIBBUILD2_CONFIG_TYPES_HXX
+
+#include <libbuild2/types.hxx>
+
+namespace build2
+{
+  namespace config
+  {
+    // The origin of the value of a configuration variable.
+    //
+    enum class variable_origin
+    {
+      undefined,  // Undefined.
+      default_,   // Default value from the config directive.
+      buildfile,  // Value from a buildfile, normally config.build.
+      override_   // Value from a command line override.
+    };
+  }
+}
+
+#endif // LIBBUILD2_CONFIG_TYPES_HXX
diff --git a/libbuild2/config/utility.hxx b/libbuild2/config/utility.hxx
index 050339a..b998e3c 100644
--- a/libbuild2/config/utility.hxx
+++ b/libbuild2/config/utility.hxx
@@ -11,6 +11,8 @@
 #include <libbuild2/scope.hxx>
 #include <libbuild2/variable.hxx>
 
+#include <libbuild2/config/types.hxx>
+
 #include <libbuild2/export.hxx>
 
 namespace build2
@@ -507,14 +509,6 @@ namespace build2
     //
     // Throws invalid_argument if the passed variable is not config.*.
     //
-    enum class variable_origin
-    {
-      undefined,  // Undefined.
-      default_,   // Default value from the config directive.
-      buildfile,  // Value from a buildfile, normally config.build.
-      override_   // Value from a command line override.
-    };
-
     LIBBUILD2_SYMEXPORT pair<variable_origin, lookup>
     origin (const scope& rs, const string& name);
 
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