add <cstdlib> header for abort() on linux builders.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100290 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index c30dde8..0b88b0f 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -10,6 +10,7 @@
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/Support/raw_ostream.h"
+#include <cstdlib>
using namespace llvm;
MCStreamer::MCStreamer(MCContext &_Context) : Context(_Context), CurSection(0) {