From 907cf28f49f785ad8b53a8d5a36f2c47145d9f8a Mon Sep 17 00:00:00 2001
From: chriseth <c@ethdev.com>
Date: Mon, 2 Nov 2015 18:02:51 +0100
Subject: Fix: Cope with non-existing commit hash.

---
 libsolidity/interface/Version.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'libsolidity/interface')

diff --git a/libsolidity/interface/Version.cpp b/libsolidity/interface/Version.cpp
index d2a53440..84a82dbf 100644
--- a/libsolidity/interface/Version.cpp
+++ b/libsolidity/interface/Version.cpp
@@ -65,7 +65,10 @@ bytes dev::solidity::binaryVersion()
 	solAssert(i < VersionString.size() && VersionString[i] == '-', "");
 	++i;
 	solAssert(i + 7 < VersionString.size(), "");
-	ret += fromHex(VersionString.substr(i, 8));
+	bytes commitHash = fromHex(VersionString.substr(i, 8));
+	if (commitHash.empty())
+		commitHash = bytes(4, 0);
+	ret += commitHash;
 	solAssert(ret.size() == 1 + 3 + 4, "");
 
 	return ret;
-- 
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