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-rw-r--r--src/jtutil/norm.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/jtutil/norm.cc b/src/jtutil/norm.cc
index 23cac5c..edd3fd1 100644
--- a/src/jtutil/norm.cc
+++ b/src/jtutil/norm.cc
@@ -7,6 +7,7 @@
#include <math.h>
#include <assert.h>
+#include <stdlib.h>
#include "util.hh"