From 0586a9ec89acd0a37b3b5ec0c1aa1639fabfe2fc Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sun, 20 Aug 2017 16:16:56 +0200
Subject: Don't clean generated version

---
 buildfile | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/buildfile b/buildfile
index 2ed54a0..54a7828 100644
--- a/buildfile
+++ b/buildfile
@@ -18,8 +18,13 @@ BOOTSTRAP-WINDOWS
 
 ./: $d doc{$i README version} cli{$i} file{build.sh build-*} 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 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 the BOOTSTRAP/INSTALL files. But UPGRADE could be useful.
 #
-- 
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