/usr/ is in libegl1-mesa-dev 8.0.4-0ubuntu0.6.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/EGL/
/usr/include/EGL/eglplatform.h
/usr/include/EGL/eglext.h
/usr/include/EGL/eglmesaext.h
/usr/include/EGL/egl.h
/usr/include/KHR/
/usr/include/KHR/khrplatform.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/egl.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/wayland-egl.pc
/usr/lib/x86_64-linux-gnu/mesa-egl/
/usr/share/
/usr/share/doc/
/usr/share/doc/libegl1-mesa-dev/
/usr/share/doc/libegl1-mesa-dev/copyright
/usr/share/bug/
/usr/share/bug/libegl1-mesa-dev/
/usr/share/bug/libegl1-mesa-dev/script
/usr/share/bug/libegl1-mesa-dev/control
/usr/lib/x86_64-linux-gnu/libEGL.so
/usr/lib/x86_64-linux-gnu/libwayland-egl.so
/usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so
/usr/lib/x86_64-linux-gnu/mesa-egl/libwayland-egl.so
/usr/share/doc/libegl1-mesa-dev/changelog.Debian.gz