From ac82bded6b2bdaf1e04b6357415c9f5ce04063dd Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Sun, 8 Oct 2017 21:16:33 +0300
Subject: Fix crashing on empty installation directory name

---
 build2/install/rule.cxx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'build2/install/rule.cxx')

diff --git a/build2/install/rule.cxx b/build2/install/rule.cxx
index f764363..75de96f 100644
--- a/build2/install/rule.cxx
+++ b/build2/install/rule.cxx
@@ -340,6 +340,9 @@ namespace build2
         // installation directory name, e.g., bin, sbin, lib, etc. Look it
         // up and recurse.
         //
+        if (d.empty ())
+          fail << "empty installation directory name";
+
         const string& sn (*d.begin ());
         const string var ("install." + sn);
         if (const dir_path* dn = lookup_install<dir_path> (s, var))
-- 
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