Update extract_non_manifold_edge_curves.cpp (#2423) [skip ci]

Co-authored-by: Alec Jacobson <[email protected]>

include/igl/extract_non_manifold_edge_curves.cpp

@@ -121,3 +121,10 @@ IGL_INLINE void igl::extract_non_manifold_edge_curves(
     }
 
 }
+
+
+#ifdef IGL_STATIC_LIBRARY
+// Explicit template instantiation
+// generated by autoexplicit.sh
+template void igl::extract_non_manifold_edge_curves<Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, int>(Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1>> const &, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const &, std::vector<std::vector<int, std::allocator<int>>, std::allocator<std::vector<int, std::allocator<int>>>> const &, std::vector<std::vector<unsigned long, std::allocator<unsigned long>>, std::allocator<std::vector<unsigned long, std::allocator<unsigned long>>>> &);
+#endif