r254117 - Driver: protect from empty -L args

[Martell Malone via cfe-commits]

Author: martell
Date: Wed Nov 25 19:02:07 2015
New Revision: 254117

URL: http://llvm.org/viewvc/llvm-project?rev=254117&view=rev
Log:
Driver: protect from empty -L args

Differential Revision: http://reviews.llvm.org/D12466

Modified:
    cfe/trunk/lib/Driver/ToolChain.cpp

Modified: cfe/trunk/lib/Driver/ToolChain.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChain.cpp?rev=254117&r1=254116&r2=254117&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChain.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChain.cpp Wed Nov 25 19:02:07 2015
@@ -619,7 +619,8 @@ void ToolChain::AddCXXStdlibLibArgs(cons
 void ToolChain::AddFilePathLibArgs(const ArgList &Args,
                                    ArgStringList &CmdArgs) const {
   for (const auto &LibPath : getFilePaths())
-    CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
+    if(LibPath.length() > 0)
+      CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
 }
 
 void ToolChain::AddCCKextLibArgs(const ArgList &Args,