Fix compile failures with g++-4.3.

llvm-svn: 45781

llvm/lib/System/DynamicLibrary.cpp

@@ -13,6 +13,7 @@
 
 #include "llvm/System/DynamicLibrary.h"
 #include "llvm/Config/config.h"
+#include <cstring>
 #include <map>
 
 // Collection of symbol name/value pairs to be searched prior to any libraries.

llvm/lib/System/Path.cpp

@@ -14,6 +14,7 @@
 #include "llvm/System/Path.h"
 #include "llvm/Config/config.h"
 #include <cassert>
+#include <cstring>
 #include <ostream>
 using namespace llvm;
 using namespace sys;