diff --git a/tools/gccld/GenerateCode.cpp b/tools/gccld/GenerateCode.cpp
index 773ef49..b189d06 100644
--- a/tools/gccld/GenerateCode.cpp
+++ b/tools/gccld/GenerateCode.cpp
@@ -242,13 +242,13 @@
                            const std::string &InputFilename,
                            const sys::Path &llc) {
   // Run LLC to convert the bytecode file into assembly code.
-  std::vector<std::string> args;
+  std::vector<const char*> args;
   args.push_back("-f");
   args.push_back("-o");
-  args.push_back(OutputFilename);
-  args.push_back(InputFilename);
+  args.push_back(OutputFilename.c_str());
+  args.push_back(InputFilename.c_str());
 
-  return sys::Program::ExecuteAndWait(llc, args);
+  return sys::Program::ExecuteAndWait(llc, &args[0]);
 }
 
 /// GenerateAssembly - generates a native assembly language source file from the
@@ -257,13 +257,13 @@
                         const std::string &InputFile,
                         const sys::Path &llc ) {
   // Run LLC to convert the bytecode file into C.
-  std::vector<std::string> args;
+  std::vector<const char*> args;
   args.push_back("-march=c");
   args.push_back("-f");
   args.push_back("-o");
-  args.push_back(OutputFile);
-  args.push_back(InputFile);
-  return sys::Program::ExecuteAndWait(llc, args);
+  args.push_back(OutputFile.c_str());
+  args.push_back(InputFile.c_str());
+  return sys::Program::ExecuteAndWait(llc, &args[0]);
 }
 
 /// GenerateNative - generates a native assembly language source file from the
@@ -308,20 +308,22 @@
   //  We can't just assemble and link the file with the system assembler
   //  and linker because we don't know where to put the _start symbol.
   //  GCC mysteriously knows how to do it.
-  std::vector<std::string> args;
+  std::vector<const char*> args;
   args.push_back("-fno-strict-aliasing");
   args.push_back("-O3");
   args.push_back("-o");
-  args.push_back(OutputFilename);
-  args.push_back(InputFilename);
+  args.push_back(OutputFilename.c_str());
+  args.push_back(InputFilename.c_str());
 
   // Add in the libraries to link.
   for (unsigned index = 0; index < Libraries.size(); index++) {
-    if (Libraries[index] != "crtend")
-      args.push_back("-l" + Libraries[index]);
+    if (Libraries[index] != "crtend") {
+      args.push_back("-l");
+      args.push_back(Libraries[index].c_str());
+    }
   }
 
   // Run the compiler to assembly and link together the program.
-  return sys::Program::ExecuteAndWait(gcc, args, (const char**)clean_env);
+  return sys::Program::ExecuteAndWait(gcc, &args[0], (const char**)clean_env);
 }