/usr/include/librevenge-0.0/librevenge-generators/ is in librevenge-dev 0.0.4-6ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/librevenge-0.0/librevenge-generators/RVNGCSVSpreadsheetGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGHTMLTextGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGRawDrawingGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGRawPresentationGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGRawSpreadsheetGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGRawTextGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGSVGPresentationGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGTextDrawingGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGTextPresentationGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGTextSpreadsheetGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/RVNGTextTextGenerator.h
/usr/include/librevenge-0.0/librevenge-generators/librevenge-generators-api.h
/usr/include/librevenge-0.0/librevenge-generators/librevenge-generators.h