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-rw-r--r--src/3rdparty/eigen/Eigen/src/Core/util/NonMPL2.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/3rdparty/eigen/Eigen/src/Core/util/NonMPL2.h b/src/3rdparty/eigen/Eigen/src/Core/util/NonMPL2.h
new file mode 100644
index 000000000..1af67cf18
--- /dev/null
+++ b/src/3rdparty/eigen/Eigen/src/Core/util/NonMPL2.h
@@ -0,0 +1,3 @@
+#ifdef EIGEN_MPL2_ONLY
+#error Including non-MPL2 code in EIGEN_MPL2_ONLY mode
+#endif