/usr/ is in libtrilinos-optipack-dev 12.10.1-3.
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..
/usr/include/
/usr/include/trilinos/
/usr/include/trilinos/Makefile.export.OptiPack
/usr/include/trilinos/OptiPack_Config.h
/usr/include/trilinos/OptiPack_ConfigDefs.hpp
/usr/include/trilinos/OptiPack_DefaultPolyLineSearchPointEvaluator.hpp
/usr/include/trilinos/OptiPack_LineSearchPointEvaluatorBase.hpp
/usr/include/trilinos/OptiPack_NonlinearCG.hpp
/usr/include/trilinos/OptiPack_NonlinearCG_decl.hpp
/usr/include/trilinos/OptiPack_NonlinearCG_def.hpp
/usr/include/trilinos/OptiPack_Types.hpp
/usr/include/trilinos/OptiPack_UnconstrainedOptMeritFunc1D.hpp
/usr/include/trilinos/OptiPack_UnconstrainedOptMeritFunc1D_decl.hpp
/usr/include/trilinos/OptiPack_UnconstrainedOptMeritFunc1D_def.hpp
/usr/include/trilinos/OptiPack_Version.hpp
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/OptiPack/
/usr/lib/x86_64-linux-gnu/cmake/OptiPack/OptiPackConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/OptiPack/OptiPackTargets-none.cmake
/usr/lib/x86_64-linux-gnu/cmake/OptiPack/OptiPackTargets.cmake
/usr/share/
/usr/share/doc/
/usr/share/doc/libtrilinos-optipack-dev/
/usr/share/doc/libtrilinos-optipack-dev/changelog.Debian.gz
/usr/share/doc/libtrilinos-optipack-dev/copyright
/usr/lib/x86_64-linux-gnu/libtrilinos_optipack.so