/me slaps forehead


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10693 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Debugger/SourceLanguage-Unknown.cpp b/lib/Debugger/SourceLanguage-Unknown.cpp
index 7d262d1..806eb71 100644
--- a/lib/Debugger/SourceLanguage-Unknown.cpp
+++ b/lib/Debugger/SourceLanguage-Unknown.cpp
@@ -16,6 +16,7 @@
 #include "llvm/Debugger/SourceLanguage.h"
 #include "llvm/Debugger/ProgramInfo.h"
 #include <iostream>
+#include <cassert>
 using namespace llvm;
 
 //===----------------------------------------------------------------------===//