1 files changed, 3 insertions, 9 deletions
diff --git a/lib/Serialization/GeneratePCH.cpp b/lib/Serialization/GeneratePCH.cpp
index 9cd694e05c..16352c8e13 100644
--- a/lib/Serialization/GeneratePCH.cpp
+++ b/lib/Serialization/GeneratePCH.cpp
@@ -23,18 +23,16 @@
 #include "llvm/Bitcode/BitstreamWriter.h"
 #include "llvm/Support/raw_ostream.h"
 #include <string>
-#include <string.h>
-#include <stdlib.h>
 
 using namespace clang;
 
 PCHGenerator::PCHGenerator(const Preprocessor &PP,
                            const std::string &OutputFile,
                            bool Chaining,
-                           const char *isysroot,
+                           StringRef isysroot,
                            llvm::raw_ostream *OS)
-  : PP(PP), OutputFile(OutputFile), isysroot(0), Out(OS), SemaPtr(0),
-    StatCalls(0), Stream(Buffer), Writer(Stream), Chaining(Chaining) {
+  : PP(PP), OutputFile(OutputFile), isysroot(isysroot.str()), Out(OS), 
+    SemaPtr(0), StatCalls(0), Stream(Buffer), Writer(Stream), Chaining(Chaining) {
   // Install a stat() listener to keep track of all of the stat()
   // calls.
   StatCalls = new MemorizeStatCalls();
@@ -42,13 +40,9 @@ PCHGenerator::PCHGenerator(const Preprocessor &PP,
   // *after* the already installed ASTReader's stat cache.
   PP.getFileManager().addStatCache(StatCalls,
     /*AtBeginning=*/!Chaining);
-      
-  if (isysroot)
-    this->isysroot = strdup(isysroot);
 }
 
 PCHGenerator::~PCHGenerator() {
-  free((void*)isysroot);
 }
 
 void PCHGenerator::HandleTranslationUnit(ASTContext &Ctx) {