By default mkstemp() creates a temporary file with mode 0600, but the mode
used for open is 0666.  Therefore, add the necessary permission bits for
consistency.
rdar://8621462

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134430 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Unix/Path.inc b/lib/Support/Unix/Path.inc
index 430cf2e..f295b92 100644
--- a/lib/Support/Unix/Path.inc
+++ b/lib/Support/Unix/Path.inc
@@ -842,6 +842,9 @@
 
   // Save the name
   path = FNBuffer;
+
+  // By default mkstemp sets the mode to 0600, so update mode bits now.
+  AddPermissionBits (*this, 0666);
 #elif defined(HAVE_MKTEMP)
   // If we don't have mkstemp, use the old and obsolete mktemp function.
   if (mktemp(FNBuffer) == 0)