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-rw-r--r--src/main/scala/Chisel/Driver.scala3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/main/scala/Chisel/Driver.scala b/src/main/scala/Chisel/Driver.scala
index dd78ab8d..a31786d9 100644
--- a/src/main/scala/Chisel/Driver.scala
+++ b/src/main/scala/Chisel/Driver.scala
@@ -5,6 +5,9 @@ package Chisel
import scala.sys.process._
import java.io._
+import internal._
+import firrtl._
+
trait FileSystemUtilities {
def writeTempFile(pre: String, post: String, contents: String): File = {
val t = File.createTempFile(pre, post)