Fix the build on platforms where <cassert> doesn't define NULL

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25147 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Analysis/ET-Forest.h b/include/llvm/Analysis/ET-Forest.h
index 892a0b5f880e94b2627a2ea3d9fc9ecd98538231..02b0f76234267a5b5ce7c98d6528aea47659f22d 100644 (file)
--- a/include/llvm/Analysis/ET-Forest.h
+++ b/include/llvm/Analysis/ET-Forest.h
@@ -30,6 +30,7 @@
 #define LLVM_ANALYSIS_ETFOREST_H
 
 #include <cassert>
+#include <cstdlib>
 
 namespace llvm {
 class ETNode;