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-rw-r--r--libtests/bits.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/libtests/bits.cc b/libtests/bits.cc
index c14bceb6..ba1d5483 100644
--- a/libtests/bits.cc
+++ b/libtests/bits.cc
@@ -3,6 +3,7 @@
#include <qpdf/Pl_Buffer.hh>
#include <iostream>
#include <stdio.h>
+#include <stdlib.h>
// See comments in bits.cc
#define BITS_TESTING 1