/usr/include/libGIFTQuInvertedFile/ is in libgnuift0-dev 0.1.14+ds-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/libGIFTQuInvertedFile/include/
/usr/include/libGIFTQuInvertedFile/include/CQInvertedFile.h
/usr/include/libGIFTQuInvertedFile/include/CQNBestFullyWeighted.h
/usr/include/libGIFTQuInvertedFile/include/CQNEuclideanLengthSquare.h
/usr/include/libGIFTQuInvertedFile/include/CQNMaxDocumentFrequency.h
/usr/include/libGIFTQuInvertedFile/include/CQNNoNormalization.h
/usr/include/libGIFTQuInvertedFile/include/CQNSquareDFLogICFSum.h
/usr/include/libGIFTQuInvertedFile/include/CQueryNormalizer.h
/usr/include/libGIFTQuInvertedFile/include/CScoreBoard.h
/usr/include/libGIFTQuInvertedFile/include/CWFBestFullyWeighted.h
/usr/include/libGIFTQuInvertedFile/include/CWFBestProbabilistic.h
/usr/include/libGIFTQuInvertedFile/include/CWFBinaryTerm.h
/usr/include/libGIFTQuInvertedFile/include/CWFClassicalIDF.h
/usr/include/libGIFTQuInvertedFile/include/CWFCoordinationLevel.h
/usr/include/libGIFTQuInvertedFile/include/CWFProbability.h
/usr/include/libGIFTQuInvertedFile/include/CWFStandardTF.h
/usr/include/libGIFTQuInvertedFile/include/CWeighter.h
/usr/include/libGIFTQuInvertedFile/include/CWeightingFunction.h
/usr/include/libGIFTQuInvertedFile/include/CWeightingFunctionPointerHash.h
/usr/include/libGIFTQuInvertedFile/include/CWeightingFunctionPointerList.h
/usr/include/libGIFTQuInvertedFile/include/uses-declarations.h