2 files changed, 11 insertions, 0 deletions
diff --git a/lib/CompilerDriver/BuiltinOptions.cpp b/lib/CompilerDriver/BuiltinOptions.cpp
index a3364e8..c4660e1 100644
--- a/lib/CompilerDriver/BuiltinOptions.cpp
+++ b/lib/CompilerDriver/BuiltinOptions.cpp
@@ -25,6 +25,8 @@ cl::list<std::string> InputFilenames(cl::Positional, cl::desc("<input file>"),
                                      cl::ZeroOrMore);
 cl::opt<std::string> OutputFilename("o", cl::desc("Output file name"),
                                     cl::value_desc("file"), cl::Prefix);
+cl::opt<std::string> TempDirname("t", cl::desc("Temp dir name"),
+                                    cl::value_desc("dir"), cl::Prefix);
 cl::list<std::string> Languages("x",
           cl::desc("Specify the language of the following input files"),
           cl::ZeroOrMore);
diff --git a/lib/CompilerDriver/Main.cpp b/lib/CompilerDriver/Main.cpp
index 7d1a3d8..57d2937 100644
--- a/lib/CompilerDriver/Main.cpp
+++ b/lib/CompilerDriver/Main.cpp
@@ -31,6 +31,15 @@ namespace {
   sys::Path getTempDir() {
     sys::Path tempDir;
 
+    if (! TempDirname.empty() {
+      tempDir = TempDirname;
+      if (!tempDir.exists()) {
+        std::string ErrMsg;
+        if (tempDir.createDirectoryOnDisk(true, &ErrMsg))
+          throw std::runtime_error(ErrMsg);
+      }
+    }
+
     // GCC 4.5-style -save-temps handling.
     if (SaveTemps == SaveTempsEnum::Unset) {
       tempDir = sys::Path::GetTemporaryDirectory();