/usr/lib/x86_64-linux-gnu/ is in libeccodes-dev 2.6.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/eccodes/
/usr/lib/x86_64-linux-gnu/cmake/eccodes/eccodes-config-version.cmake
/usr/lib/x86_64-linux-gnu/cmake/eccodes/eccodes-config.cmake
/usr/lib/x86_64-linux-gnu/cmake/eccodes/eccodes-import.cmake
/usr/lib/x86_64-linux-gnu/cmake/eccodes/eccodes-targets-release.cmake
/usr/lib/x86_64-linux-gnu/cmake/eccodes/eccodes-targets.cmake
/usr/lib/x86_64-linux-gnu/cmake/eccodes/grib_api-config.cmake
/usr/lib/x86_64-linux-gnu/libeccodes_f90_static.a
/usr/lib/x86_64-linux-gnu/libeccodes_memfs_static.a
/usr/lib/x86_64-linux-gnu/libeccodes_static.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/eccodes.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/eccodes_f90.pc
/usr/lib/x86_64-linux-gnu/libeccodes.so
/usr/lib/x86_64-linux-gnu/libeccodes_f90.so
/usr/lib/x86_64-linux-gnu/libeccodes_memfs.so