From 2e2f3dccf0023e6397eb7d4cc5180a57cb0674b0 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Mon, 21 Aug 2017 01:17:17 +0300
Subject: Don't distribute generated version.hxx and don't clean version

---
 bbot/buildfile | 1 -
 buildfile      | 9 +++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/bbot/buildfile b/bbot/buildfile
index 60f120f..70085cf 100644
--- a/bbot/buildfile
+++ b/bbot/buildfile
@@ -39,7 +39,6 @@ libu{bbot}: {hxx ixx txx cxx}{* -common-options -version} \
             $libs
 
 hxx{version}: in{version} $src_root/file{manifest}
-hxx{version}: dist = true
 
 # Generated options parser.
 #
diff --git a/buildfile b/buildfile
index 0362e29..41dafdc 100644
--- a/buildfile
+++ b/buildfile
@@ -5,8 +5,13 @@
 ./: {*/ -tests/ -build/} doc{INSTALL LICENSE NEWS README version} \
     file{manifest}
 
-doc{version}: file{manifest} # Generated by the version module.
-doc{version}: dist = true
+# The version file is auto-generated (by the version module) from manifest.
+# Include it in distribution and don't remove when cleaning in src (so that
+# clean results in a state identical to distributed).
+#
+doc{version}: file{manifest}
+doc{version}: dist  = true
+doc{version}: clean = ($src_root != $out_root)
 
 # Don't install tests or the INSTALL file.
 #
-- 
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