/usr/include/fcml/ is in libfcml-dev 1.1.3-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/fcml/fcml_assembler.h
/usr/include/fcml/fcml_assembler.hpp
/usr/include/fcml/fcml_choosers.h
/usr/include/fcml/fcml_common.h
/usr/include/fcml/fcml_common.hpp
/usr/include/fcml/fcml_common_utils.h
/usr/include/fcml/fcml_dialect.h
/usr/include/fcml/fcml_dialect.hpp
/usr/include/fcml/fcml_disassembler.h
/usr/include/fcml/fcml_disassembler.hpp
/usr/include/fcml/fcml_env.h
/usr/include/fcml/fcml_errors.h
/usr/include/fcml/fcml_errors.hpp
/usr/include/fcml/fcml_gas_dialect.h
/usr/include/fcml/fcml_gas_dialect.hpp
/usr/include/fcml/fcml_gas_mnemonics.cpp
/usr/include/fcml/fcml_gas_mnemonics.h
/usr/include/fcml/fcml_gas_mnemonics.hpp
/usr/include/fcml/fcml_instructions.h
/usr/include/fcml/fcml_intel_dialect.h
/usr/include/fcml/fcml_intel_dialect.hpp
/usr/include/fcml/fcml_intel_mnemonics.cpp
/usr/include/fcml/fcml_intel_mnemonics.h
/usr/include/fcml/fcml_intel_mnemonics.hpp
/usr/include/fcml/fcml_lag_assembler.h
/usr/include/fcml/fcml_lag_assembler.hpp
/usr/include/fcml/fcml_lib_export.h
/usr/include/fcml/fcml_optimizers.h
/usr/include/fcml/fcml_parser.h
/usr/include/fcml/fcml_parser.hpp
/usr/include/fcml/fcml_registers.cpp
/usr/include/fcml/fcml_registers.hpp
/usr/include/fcml/fcml_renderer.h
/usr/include/fcml/fcml_renderer.hpp
/usr/include/fcml/fcml_stateful_assembler.hpp
/usr/include/fcml/fcml_stateful_disassembler.hpp
/usr/include/fcml/fcml_symbols.h
/usr/include/fcml/fcml_symbols.hpp
/usr/include/fcml/fcml_types.h