File llvm-fix-find-gcc5-install.patch of Package llvm

Index: cfe-3.7.0.src/lib/Driver/ToolChains.cpp
===================================================================
--- cfe-3.7.0.src/lib/Driver/ToolChains.cpp
+++ cfe-3.7.0.src/lib/Driver/ToolChains.cpp
@@ -1091,7 +1091,8 @@ Generic_GCC::GCCVersion Linux::GCCVersio
   if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0)
     return BadVersion;
   GoodVersion.MajorStr = First.first.str();
-  if (Second.first.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0)
+  if (!Second.first.str().empty() && 
+      (Second.first.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0))
     return BadVersion;
   GoodVersion.MinorStr = Second.first.str();