/usr/include/x86_64-linux-gnu/ecml/ is in libodb-api-dev 0.17.6-2build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/x86_64-linux-gnu/ecml/ast/
/usr/include/x86_64-linux-gnu/ecml/ast/Closure.h
/usr/include/x86_64-linux-gnu/ecml/ast/FunctionDefinition.h
/usr/include/x86_64-linux-gnu/ecml/core/
/usr/include/x86_64-linux-gnu/ecml/core/Environment.h
/usr/include/x86_64-linux-gnu/ecml/core/ExecutionContext.h
/usr/include/x86_64-linux-gnu/ecml/core/Interpreter.h
/usr/include/x86_64-linux-gnu/ecml/core/Module.h
/usr/include/x86_64-linux-gnu/ecml/core/RequestHandler.h
/usr/include/x86_64-linux-gnu/ecml/core/SpecialFormHandler.h
/usr/include/x86_64-linux-gnu/ecml/data/
/usr/include/x86_64-linux-gnu/ecml/data/DataHandleFactory.h
/usr/include/x86_64-linux-gnu/ecml/data/FileHandleFactory.h
/usr/include/x86_64-linux-gnu/ecml/data/HttpHandle.h
/usr/include/x86_64-linux-gnu/ecml/data/HttpHandleFactory.h
/usr/include/x86_64-linux-gnu/ecml/data/MarsHandleFactory.h
/usr/include/x86_64-linux-gnu/ecml/data/PartFileHandleFactory.h
/usr/include/x86_64-linux-gnu/ecml/ecml_config.h
/usr/include/x86_64-linux-gnu/ecml/misc/
/usr/include/x86_64-linux-gnu/ecml/misc/DynamicParametrisation.h
/usr/include/x86_64-linux-gnu/ecml/misc/ParameterizedRequestHandler.h
/usr/include/x86_64-linux-gnu/ecml/parser/
/usr/include/x86_64-linux-gnu/ecml/parser/Cell.h
/usr/include/x86_64-linux-gnu/ecml/parser/CellDotPrinter.h
/usr/include/x86_64-linux-gnu/ecml/parser/CellPrinter.h
/usr/include/x86_64-linux-gnu/ecml/parser/List.h
/usr/include/x86_64-linux-gnu/ecml/parser/Request.h
/usr/include/x86_64-linux-gnu/ecml/parser/RequestParser.h
/usr/include/x86_64-linux-gnu/ecml/prelude/
/usr/include/x86_64-linux-gnu/ecml/prelude/ApplyHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/Autocompleter.h
/usr/include/x86_64-linux-gnu/ecml/prelude/ClosureHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/DefineFunctionHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/FirstHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/ForHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/GetenvHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/GlobHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/IfHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/JoinStringsHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/LetHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/ListHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/MatchHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/NullHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/Prelude.h
/usr/include/x86_64-linux-gnu/ecml/prelude/PrintHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/QuoteHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/REPLHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/RangeHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/ReadTextFileHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/RestHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/RunHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/SequenceHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/SystemHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/TemporaryFileHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/TestHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/ThrowHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/TryHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/UpdateHandler.h
/usr/include/x86_64-linux-gnu/ecml/prelude/VariableLookupHandler.h