From c7c3fd96e97ae2ec3914d36cb920a6f02c9a3414 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 15 Jan 2016 16:32:13 +0200
Subject: Support X.Y.Z- version notation

---
 build2/utility.cxx | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

(limited to 'build2/utility.cxx')

diff --git a/build2/utility.cxx b/build2/utility.cxx
index bd74e6d..3f078a7 100644
--- a/build2/utility.cxx
+++ b/build2/utility.cxx
@@ -61,16 +61,21 @@ namespace build2
 
       char k (s[++p]);
 
-      if (k != 'a' && k != 'b')
-        bail ("'a' or 'b' expected in release component");
+      if (k != '\0')
+      {
+        if (k != 'a' && k != 'b')
+          bail ("'a' or 'b' expected in release component");
 
-      ab = parse (++p, "invalid release component", 1, 49);
+        ab = parse (++p, "invalid release component", 1, 49);
 
-      if (p != n)
-        bail ("junk after release component");
+        if (p != n)
+          bail ("junk after release component");
 
-      if (k == 'b')
-        ab += 50;
+        if (k == 'b')
+          ab += 50;
+      }
+      else
+        ab = 1;
     }
 
     //                  AABBCCDD
-- 
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