From 4a5c11f559e72bb6f5d8c28815c57c1690408f29 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 21 Jul 2016 12:03:41 +0200
Subject: Add backwards-compatibility hack for ranlib

---
 build2/bin/module.cxx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'build2')

diff --git a/build2/bin/module.cxx b/build2/bin/module.cxx
index 26dc414..281a2e4 100644
--- a/build2/bin/module.cxx
+++ b/build2/bin/module.cxx
@@ -434,6 +434,9 @@ namespace build2
         const path& ar (cast<path> (ap.first));
         const path* ranlib (cast_null<path> (rp.first));
 
+        if (ranlib != nullptr && ranlib->empty ()) // @@ BC LT [null].
+          ranlib = nullptr;
+
         ar_info ari (guess_ar (ar, ranlib));
 
         // If this is a new value (e.g., we are configuring), then print the
-- 
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