Former-commit-id: 0f8a12aee441f1436e7b7dcd01d789e904ed5c9a
@@ -11,6 +11,7 @@
#include "parallel_for.h"
#include <Eigen/Sparse>
#include <iostream>
+#include <mutex>
#include <cstdio>
igl::BBWData::BBWData():