Patch for llvm-ar to create sub-directories correctly.

llvm-ar.patch

--- llvm-3.2.src.orig/tools/llvm-ar/llvm-ar.cpp	2012-10-26 05:49:15.000000000 -0500
+++ llvm-3.2.src/tools/llvm-ar/llvm-ar.cpp	2013-07-13 21:17:35.047302973 -0500
@@ -461,11 +461,12 @@
         (std::find(Paths.begin(), Paths.end(), I->getPath()) != Paths.end())) {
 
       // Make sure the intervening directories are created
-      if (I->hasPath()) {
-        sys::Path dirs(I->getPath());
-        dirs.eraseComponent();
-        if (dirs.createDirectoryOnDisk(/*create_parents=*/true, ErrMsg))
+      sys::Path dirs(I->getPath());
+      dirs.eraseComponent();
+      if (dirs.isValid()) {
+        if (dirs.createDirectoryOnDisk(/*create_parents=*/true, ErrMsg)) {
           return true;
+	}
       }
 
       // Open up a file stream for writing