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-rw-r--r--src/system.hh1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/system.hh b/src/system.hh
index ff2caf56..bffd041c 100644
--- a/src/system.hh
+++ b/src/system.hh
@@ -168,6 +168,7 @@ typedef std::ostream::pos_type ostream_pos_type;
#include <boost/ptr_container/ptr_list.hpp>
#include <boost/regex.hpp>
#include <boost/variant.hpp>
+#include <boost/version.hpp>
#if defined(HAVE_BOOST_PYTHON)