sys::Process: Add a SetWorkingDirectory method.

llvm-svn: 140433
diff --git a/llvm/lib/Support/Unix/Process.inc b/llvm/lib/Support/Unix/Process.inc
index 5cdb11c..da440fd 100644
--- a/llvm/lib/Support/Unix/Process.inc
+++ b/llvm/lib/Support/Unix/Process.inc
@@ -293,3 +293,7 @@
 const char *Process::ResetColor() {
   return "\033[0m";
 }
+
+void Process::SetWorkingDirectory(std::string Path) {
+  ::chdir(Path.c_str());
+}
diff --git a/llvm/lib/Support/Windows/Process.inc b/llvm/lib/Support/Windows/Process.inc
index 06a7f00..fe54eb1 100644
--- a/llvm/lib/Support/Windows/Process.inc
+++ b/llvm/lib/Support/Windows/Process.inc
@@ -15,6 +15,7 @@
 #include <psapi.h>
 #include <malloc.h>
 #include <io.h>
+#include <direct.h>
 
 #ifdef __MINGW32__
  #if (HAVE_LIBPSAPI != 1)
@@ -219,4 +220,8 @@
   return 0;
 }
 
+void Process::SetWorkingDirectory(std::string Path) {
+  ::_chdir(Path.c_str());
+}
+
 }