/usr/include/trilinos/ is in libtrilinos-rtop-dev 12.10.1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/trilinos/Makefile.export.RTOp
/usr/include/trilinos/RTOpPack_LapackWrappers.hpp
/usr/include/trilinos/RTOpPack_ROpCountNanInf.hpp
/usr/include/trilinos/RTOpPack_ROpDotProd.hpp
/usr/include/trilinos/RTOpPack_ROpGetElement.hpp
/usr/include/trilinos/RTOpPack_ROpGetSubVector.hpp
/usr/include/trilinos/RTOpPack_ROpGetSubVector_decl.hpp
/usr/include/trilinos/RTOpPack_ROpGetSubVector_def.hpp
/usr/include/trilinos/RTOpPack_ROpMax.hpp
/usr/include/trilinos/RTOpPack_ROpMaxIndex.hpp
/usr/include/trilinos/RTOpPack_ROpMaxIndexLessThanBound.hpp
/usr/include/trilinos/RTOpPack_ROpMin.hpp
/usr/include/trilinos/RTOpPack_ROpMinIndex.hpp
/usr/include/trilinos/RTOpPack_ROpMinIndexGreaterThanBound.hpp
/usr/include/trilinos/RTOpPack_ROpNorm1.hpp
/usr/include/trilinos/RTOpPack_ROpNorm2.hpp
/usr/include/trilinos/RTOpPack_ROpNormInf.hpp
/usr/include/trilinos/RTOpPack_ROpSum.hpp
/usr/include/trilinos/RTOpPack_ROpWeightedNorm2.hpp
/usr/include/trilinos/RTOpPack_RTOpServer.hpp
/usr/include/trilinos/RTOpPack_RTOpServerDecl.hpp
/usr/include/trilinos/RTOpPack_RTOpSubRangeDecorator.hpp
/usr/include/trilinos/RTOpPack_RTOpSubRangeDecorator_decl.hpp
/usr/include/trilinos/RTOpPack_RTOpSubRangeDecorator_def.hpp
/usr/include/trilinos/RTOpPack_RTOpT.hpp
/usr/include/trilinos/RTOpPack_RTOpTHelpers.hpp
/usr/include/trilinos/RTOpPack_RTOpTHelpers_decl.hpp
/usr/include/trilinos/RTOpPack_RTOpTHelpers_def.hpp
/usr/include/trilinos/RTOpPack_RTOpT_decl.hpp
/usr/include/trilinos/RTOpPack_RTOpT_def.hpp
/usr/include/trilinos/RTOpPack_SPMD_apply_op.hpp
/usr/include/trilinos/RTOpPack_SPMD_apply_op_decl.hpp
/usr/include/trilinos/RTOpPack_SPMD_apply_op_def.hpp
/usr/include/trilinos/RTOpPack_SparseSubVectorT.hpp
/usr/include/trilinos/RTOpPack_TOpAXPY.hpp
/usr/include/trilinos/RTOpPack_TOpAbs.hpp
/usr/include/trilinos/RTOpPack_TOpAddScalar.hpp
/usr/include/trilinos/RTOpPack_TOpAssignScalar.hpp
/usr/include/trilinos/RTOpPack_TOpAssignVectors.hpp
/usr/include/trilinos/RTOpPack_TOpEleWiseConjProd.hpp
/usr/include/trilinos/RTOpPack_TOpEleWiseDivide.hpp
/usr/include/trilinos/RTOpPack_TOpEleWiseProd.hpp
/usr/include/trilinos/RTOpPack_TOpEleWiseProdUpdate.hpp
/usr/include/trilinos/RTOpPack_TOpEleWiseScale.hpp
/usr/include/trilinos/RTOpPack_TOpLinearCombination.hpp
/usr/include/trilinos/RTOpPack_TOpLinearCombination_decl.hpp
/usr/include/trilinos/RTOpPack_TOpLinearCombination_def.hpp
/usr/include/trilinos/RTOpPack_TOpRandomize.hpp
/usr/include/trilinos/RTOpPack_TOpReciprocal.hpp
/usr/include/trilinos/RTOpPack_TOpScaleVector.hpp
/usr/include/trilinos/RTOpPack_TOpSetAssendingValues.hpp
/usr/include/trilinos/RTOpPack_TOpSetElement.hpp
/usr/include/trilinos/RTOpPack_TOpSetSubVector.hpp
/usr/include/trilinos/RTOpPack_TOpSetSubVector_def.hpp
/usr/include/trilinos/RTOpPack_TOpUnaryFuncPtr.hpp
/usr/include/trilinos/RTOpPack_TOpUnaryFuncPtrDecl.hpp
/usr/include/trilinos/RTOpPack_Types.hpp
/usr/include/trilinos/RTOpPack_version.hpp
/usr/include/trilinos/RTOp_Config.h
/usr/include/trilinos/RTOp_ConfigDefs.hpp
/usr/include/trilinos/RTOp_parallel_helpers.h