/usr/include/ is in libpoker-eval-dev 138.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/poker-eval/
/usr/include/poker-eval/evx_defs.h
/usr/include/poker-eval/enumerate.h
/usr/include/poker-eval/deck_undef.h
/usr/include/poker-eval/rules_joker.h
/usr/include/poker-eval/rules_std.h
/usr/include/poker-eval/enumord.h
/usr/include/poker-eval/deck_joker.h
/usr/include/poker-eval/handval_low.h
/usr/include/poker-eval/game_joker.h
/usr/include/poker-eval/handval.h
/usr/include/poker-eval/game_astud.h
/usr/include/poker-eval/pokereval_export.h
/usr/include/poker-eval/deck_std.h
/usr/include/poker-eval/inlines/
/usr/include/poker-eval/inlines/evx7.h
/usr/include/poker-eval/inlines/eval_low.h
/usr/include/poker-eval/inlines/evx_action.h
/usr/include/poker-eval/inlines/evx_inlines.h
/usr/include/poker-eval/inlines/eval_omaha.h
/usr/include/poker-eval/inlines/eval_low8.h
/usr/include/poker-eval/inlines/evx5.h
/usr/include/poker-eval/inlines/eval_joker_low8.h
/usr/include/poker-eval/inlines/eval_low27.h
/usr/include/poker-eval/inlines/eval_joker_low.h
/usr/include/poker-eval/inlines/eval_joker.h
/usr/include/poker-eval/inlines/eval.h
/usr/include/poker-eval/inlines/eval_type.h
/usr/include/poker-eval/inlines/eval_astud.h
/usr/include/poker-eval/poker_config.h
/usr/include/poker-eval/deck.h
/usr/include/poker-eval/poker_defs.h
/usr/include/poker-eval/enumdefs.h
/usr/include/poker-eval/game_std.h
/usr/include/poker-eval/rules_astud.h
/usr/include/poker-eval/combinations.h
/usr/include/poker-eval/rules_undef.h
/usr/include/poker-eval/deck_astud.h
/usr/include/poker-eval/poker_wrapper.h